WO2010140764A1 - Mode-convertible caster - Google Patents

Mode-convertible caster Download PDF

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Publication number
WO2010140764A1
WO2010140764A1 PCT/KR2010/002130 KR2010002130W WO2010140764A1 WO 2010140764 A1 WO2010140764 A1 WO 2010140764A1 KR 2010002130 W KR2010002130 W KR 2010002130W WO 2010140764 A1 WO2010140764 A1 WO 2010140764A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixing pin
fixing
mode
lower frame
moving means
Prior art date
Application number
PCT/KR2010/002130
Other languages
French (fr)
Korean (ko)
Inventor
김현우
Original Assignee
Kim Hyun-Woo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kim Hyun-Woo filed Critical Kim Hyun-Woo
Publication of WO2010140764A1 publication Critical patent/WO2010140764A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0086—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on rim or side portion of tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B60B33/0018—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of a flat mounting plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0081—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on tire tread

Definitions

  • the present invention relates to a caster capable of mode switching, and more particularly, to a caster including a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel rotating in combination with the lower frame. Rotating portion coupled to the wheel to rotate with the wheel; A fixing pin connected to the lower frame (upper frame) and interlocked with or fixed to the upper frame (lower frame) by interlocking with the following fixing pin moving means; By including a fixed pin moving means for moving the fixing pin by using the rotation of the rotating unit, it is possible to easily switch between the fixed mode of the lower frame fixed state or the rotation mode of the lower frame can be rotated state
  • the present invention relates to a caster capable of switching modes.
  • Casters used in transport carts or baby carriages used in large shops or airports can be easily moved by pushing or pulling without heavy force even under heavy loads.
  • Carrying carts usually have four wheels, and two or four of them are mounted in a caster shape. In this case, the following problems occur when using a conventional caster.
  • the wheels located in the direction of rotation among the two fixed wheels will function as the rotating shaft when moving in a straight direction. It has the advantage of being able to easily resist inertia to go straight, thereby facilitating a change of direction with little force, but if you want to move sideways while stationary, friction between the two fixed wheels and the floor It is difficult to move sideways in the narrow space by the side or difficult to move to the exact position in the narrow space by this, there is a problem that requires a separate operation to reduce the friction, such as lifting the fixed wheels.
  • the present invention has been made to solve the above problems,
  • the object of the present invention is not only to switch the caster to the rotational mode that can be freely changed or the fixed mode that can be fixed in a straight direction, but also to easily change the mode with a simple operation of slightly backward or forward the wheel.
  • a caster capable of mode switching to facilitate the change of direction while going straight as well as lateral movement in a narrow space.
  • Another object of the present invention is to provide a caster capable of mode switching that can be easily switched between modes by allowing the elastic force of the elastic member to be used in the process of switching back to the fixed mode after the wheel is rotated by the reverse of the wheel. .
  • Still another object of the present invention is to provide a caster capable of mode switching, which can prevent friction between members and damage to the members generated when the caster changes direction in the rotation mode.
  • the caster capable of mode switching for achieving the above object of the present invention includes the following configuration.
  • the mode changeable caster according to the present invention includes a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel that rotates to couple to the lower frame.
  • a caster comprising: a rotating portion coupled to the wheel to rotate together with a wheel; A fixing pin connected to the lower frame and interlocked with the fixing pin moving means to be bound or released from the upper frame; By including a fixed pin moving means for moving the fixing pin by using the rotation of the rotating unit, it is possible to easily switch between the fixed mode of the lower frame fixed state or the rotation mode of the lower frame can be rotated state It is characterized by being.
  • the rotating part in the caster capable of mode switching according to the present invention, includes a protruding protrusion, and the upper frame has a fixing groove in which the fixing pin is embedded so that the fixing pin can be engaged in the fixing mode.
  • the fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing projection that can be bound to the fixing groove of the upper frame, the other end of the fixing pin is hinged to the fixing pin moving means Is coupled, the fixing pin moving means is one end hinged to the fixing pin, the other end is characterized in that it comprises a projection engaging portion that can be caught in the projection of the rotating part.
  • the rotating part includes a protruding protrusion
  • the upper frame is a fixing groove in which the fixing pin is engaged so that the fixing pin can be engaged in the fixing mode.
  • the fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing projection that can be bound to the fixing groove of the upper frame, the other end of the fixing pin to the fixing pin moving means Hinge coupled,
  • the fixed pin moving means is a fixed pin coupling portion hinged to the fixed pin and moving inside the lower frame; Rotating portion coupling portion hinged to the protruding end of the fixed pin coupling portion and formed with a projection engaging portion that can be caught by the projection of the rotating portion;
  • the lower frame is a fixed pin coupling portion that can be moved by inserting the fixed pin coupling portion It characterized in that it comprises an insertion hole.
  • the fixing pin coupling part in the caster capable of mode switching according to the present invention, includes a protrusion on one side, and the lower frame rotates the protrusion in the fixing pin coupling part insertion hole.
  • the fixing pin coupling portion spring located in the moving direction in the process of switching to the mode, the fixed pin can be easily converted to the fixed mode by the elastic force of the fixed pin coupling portion spring.
  • the rotating part includes a protruding protrusion
  • the upper frame is a fixing groove in which the fixing pin is engaged so that the fixing pin can be engaged in the fixing mode.
  • the fixing pin is a fixing projection that can be bound to the fixing groove of the upper frame;
  • the lower frame is characterized in that it comprises a fixing pin insertion hole that the fixing pin is inserted to move.
  • the fixing pin in the caster capable of mode switching according to the present invention, includes a protrusion on one side, and the lower frame switches the protrusion into the rotation mode in the fixing pin insertion hole.
  • a fixing pin spring located in the moving direction in the process, it is characterized in that the fixing pin can be easily switched to the fixed mode by the elastic force of the fixing pin spring.
  • the auxiliary wheel is included at the end of the fixing protrusion of the fixing pin, so that the lower frame is easily in the rotating mode in which the lower frame rotates. It is possible to rotate as well as to prevent damage due to friction of the fixing projections.
  • the rotating part includes a moving means insertion groove into which the fixing pin moving means can be inserted and the moving means insertion groove has a length.
  • the upper frame includes a fixing groove which is embedded so that the fixing pin can be engaged in the fixing mode
  • the fixing pin is hinged to the lower frame
  • one end of the fixing pin is the upper
  • the other end of the fixing pin includes a moving means catching portion that can be caught by the fixing pin moving means only when the rotating part rotates in the reverse direction
  • the fixing The pin moving means is formed in a shape in which the included angle between the two sides is smaller than the shape of the moving means insertion groove, and through the moving means insertion groove. Is hinged to the rotary part is characterized in that it can be rotated according to the rotation direction of the rotation unit.
  • the caster capable of mode switching according to the present invention includes a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel rotating in combination with the lower frame.
  • a caster comprising: a rotating portion coupled to the wheel to rotate together with a wheel;
  • a fixing pin connected to the upper frame and linked with the following fixing pin moving means to bind or release the binding to the lower frame;
  • the rotating part in the caster capable of mode switching according to the present invention, includes a protruding protrusion, and the upper frame includes a fixing pin groove into which the fixing pin can be inserted.
  • the lower frame includes a groove for moving means to which the fixing pin moving means can be inserted and connected, and the fixing pin moves downward to the moving means groove located below the fixing pin groove in the fixing mode and binds to the lower frame.
  • the fixing pin moving means is characterized in that when the rotating part rotates in the reverse direction, one end is caught by the projection of the rotating part to move the fixing pin upward to release the binding with the lower frame.
  • the lower frame includes a protruding jaw to prevent the fixing pin moving means from falling down in the groove for the moving means
  • the fixing The pin moving means includes a protrusion corresponding to the protruding jaw
  • the upper frame includes a fixing pin spring positioned in a moving direction in the process of switching the fixing pin into the rotation mode within the fixing pin groove. It is characterized in that the fixing pin can be easily switched to the fixed mode by the elastic force of the pin spring.
  • an auxiliary wheel is included at the end of the fixing pin, so that the lower frame can easily rotate in the rotation mode in which the lower frame rotates.
  • it is characterized in that to prevent damage by the friction of the fixing pin.
  • the rotating part includes a protruding protrusion, and one end of the fixing pin is hinged to the upper frame and the other end of the lower frame. It includes a fixing projection that can be bound to the fixed pin moving part insertion hole, the fixing pin moving means is a fixed pin moving unit for moving the fixing pin while moving inside the lower frame; And a rotating part coupling part hinged to the protruding end of the fixing pin moving part and formed with a projection catching part capable of being caught by the projection of the rotating part, wherein the lower frame includes a fixing pin to which the fixing pin moving part is inserted and moved. It characterized in that it comprises a moving part insertion hole.
  • the fixing pin moving part in the caster capable of mode switching according to the present invention, includes a protrusion on one side, and the lower frame has the protrusion in the fixing pin moving part insertion hole.
  • the fixing pin moving part spring located in the moving direction in the process of switching to the rotation mode, the fixed pin moving part can be easily switched to the fixed mode by the elastic force of the fixed pin moving part spring do.
  • the hinge of the upper frame or the lower frame and the fixing pin is easily restored to the fixed mode by the elastic force in the fixed mode. It is characterized in that the restoring spring to be formed.
  • the present invention can obtain the following effects by the configuration, combination, and use relationship described above with the present embodiment.
  • the present invention can not only change the caster to a rotation mode that can be freely changed direction or a fixed mode that can be fixed in a straight direction, but also to be able to easily switch the mode by a simple operation of moving the wheel slightly backward or forward, In addition to lateral movement in a narrow space, it provides a caster capable of mode switching to facilitate straight forward direction change.
  • the present invention provides a caster capable of mode switching that enables easy mode switching by allowing the elastic force of the elastic member to be used in the process of switching back to the fixed mode after the wheel is rotated by the reverse of the wheel.
  • the present invention provides a caster capable of mode switching to prevent friction between members and damage to the members generated when the caster changes direction in the rotation mode.
  • FIG. 1 is a cross-sectional view of a state in which a caster capable of mode switching according to an embodiment of the present invention is switched to a rotating mode while reversing;
  • FIG. 2 is a cross-sectional view of a state capable of switching the mode according to an embodiment of the present invention is converted to a fixed mode while moving forward
  • Figure 3 is a cut plan view of the AA 'portion of the upper frame in Figure 1
  • FIG. 4 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
  • FIG. 5 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the fixed mode while moving forward;
  • FIG. 6 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
  • FIG. 7 is a cross-sectional view of the caster capable of mode switching according to FIG. 6 being switched to the fixed mode while advancing
  • FIG. 8 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
  • FIG. 9 is a cross-sectional view of a state capable of switching the mode according to FIG.
  • FIG. 10 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the rotating mode while reversing;
  • FIG. 11 is a cross-sectional view of the caster capable of mode switching according to FIG. 10 being switched to the fixed mode while advancing
  • FIG. 12 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the rotating mode while reversing;
  • FIG. 13 is a cross-sectional view of the caster capable of mode switching according to FIG. 12 being switched to the fixed mode while advancing
  • FIG. 14 is a cross-sectional view showing the operation relationship of the restoring spring in the caster capable of mode switching according to an embodiment of the present invention.
  • fixing pin 6 fixing pin moving means 7: restoring spring
  • Fixing groove 12 Fixing pin groove 13: Fixing pin spring
  • Fixing pin spring 25 Fixing pin moving part insertion hole 26: Fixing pin moving part spring
  • protrusion 42 groove for moving means 421: long side 422: short side ⁇ 1: included angle
  • protrusion engaging portion 62 fixing pin coupling portion 621: protruded end 622: protrusion
  • rotating unit coupling portion 64 fixing pin moving portion 641: protruding end 642: protrusion
  • FIG. 1 is a cross-sectional view of a state changeable caster according to an embodiment of the present invention is converted to the rotation mode while reversing
  • Figure 2 is a fixed mode while the mode switchable caster according to an embodiment of the present invention
  • 3 is a cross-sectional view of a portion A-A 'of the upper frame in FIG. 1
  • FIG. 14 illustrates an operation relationship of a restoring spring in a caster capable of mode switching according to an embodiment of the present invention. It is sectional drawing.
  • a caster capable of mode switching includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1, A caster comprising a wheel (3) to rotate in conjunction with the lower frame (2), comprising: a rotating portion (4) coupled to the wheel (3) to rotate with the wheel; A fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) includes a fixing groove (11) embedded in the fixing mode so that the fixing pin (5) can be engaged, the fixing pin (5) is hinged to the lower frame (2), fixing pin ( One end of the 5) includes a fixing protrusion 51 that can be coupled to the fixing groove 11 of the upper frame 1, the other end of the fixing pin 5 is hinged to the fixing pin moving means (6) Is coupled
  • the upper frame 1 is a part attached to and fixed to the bottom of a shop cart or an industrial cart, and serves as a central axis of the caster, and a lower portion of the upper frame 1 is generally circular in consideration of the rotation of the caster. It can be formed as, the lower frame 2 to be described later is coupled to the lower portion rotatably.
  • the upper frame 1 includes a fixing groove 11 in which the fixing pin 5 is engaged in the fixing mode, and the fixing groove 11 has a lower circular shape of the upper frame 1.
  • the fixing pin 5 preferably the fixing protrusion 51 to be described later, can be inserted at a point where the fixing pin 5 will be located. It is formed.
  • the lower frame 2 is a part rotatably coupled by using a known means such as a ball bearing in the lower portion of the upper frame 1, the upper portion of the lower frame 1 is generally considering the rotation of the caster It can be formed in a circular shape and the wheel 3 to be described later is fixedly coupled to be rotated.
  • the upper circular portion of the lower frame 1 may be formed at a position higher than the wheels 3 so as not to interfere with the wheels 3, or grooves (not shown) may be formed at portions interfering with the wheels 3. have.
  • the wheel 3 is a part which is fixedly coupled to the lower part of the lower frame 2 to rotate while rubbing against the ground, and the lower frame 2 when the lower frame 2 is switched to the rotation mode for changing direction Will be rotated integrally with One side or both sides of the wheel (3) or between the wheel (3) may be coupled to the rotating portion (4) capable of moving the fixing pin moving means 6 by using the rotation of the wheel.
  • the rotating part 4 is a part which rotates together with the wheel 3 between one side or both sides of the wheel 3 or between the wheels 3, and is fixed while being combined with the wheels 3 to rotate together.
  • the pin moving means 6 may be formed in various shapes as long as it can move.
  • the pin moving means 6 may be formed in a circular shape having a radius smaller than that of the wheel 3.
  • a plurality of protrusions 41 protruding in a sawtooth shape, etc. may be formed, the protrusions 41 are engaged with the protrusion coupling portion 61 and the like, which will be described later, in particular, when the rotating part 4 rotates in the backward direction, the fixing pins. It is possible to move the moving means 6 and its operation will be described later.
  • the fixing pin (5) is connected to the lower frame (2) and is linked to the following fixing pin moving means (6) is a portion which is bound or released from the upper frame (1), the fixing pin (5) It is coupled to the lower frame (2) by a hinge (h1) at its central portion, one end thereof includes a fixing protrusion (51) which can be bound to the fixing groove (11) of the upper frame (1), the other end
  • the one end of the fixing pin moving means 6 may be coupled to the hinge (h2). Therefore, the fixing pin 5 is coupled to or released from the upper frame 1 in response to the movement of the fixing pin moving means 6, thereby fixing the lower mode or the lower frame 2 in the fixed state.
  • the frame 2 can be switched to the rotation mode in a rotatable state, the operation principle of which will be described later.
  • the fixing protrusion 51 is formed in a shape corresponding to the shape of the fixing groove 11 is protruded from one end that the fixing pin 5 abuts the fixing groove 11 of the upper frame (1). In part, the fixing protrusion 51 is bound to the fixing groove 11 so that the lower frame 2 is maintained in a fixed mode that can no longer be rotated.
  • an end of the fixing protrusion 51 may include an auxiliary wheel 54, the auxiliary wheel 54 is fixed to the end of the fixing protrusion 51 to rotate, the rotation mode
  • the hinge h1 coupled to the lower frame 2 and the fixing pin 5 has a restoring spring 7 for easily restoring the position of the fixing pin 5 to the fixed mode by an elastic force.
  • the restoring spring 7 surrounds the hinge h1 as shown separately in FIG.
  • the fixing pin moving means 6 is a part for moving the fixing pin 5 by using the rotation of the rotating part 4, one end of which is coupled to one end of the fixing pin 5 by a hinge h2.
  • the other end includes a projection catching portion 61 which can be caught by the projection 41 of the rotating part 4.
  • the protrusion catching portion 61 may be formed by being recessed into a shape corresponding to the protrusion 41 so as to be caught by the protrusion 41 of the rotating part 4.
  • the process of converting the caster to the rotation mode will be described.
  • the wheel 3 rotates backward, that is, clockwise (1 direction).
  • the rotation part 4 also rotates clockwise (1 direction)
  • the protrusion 41 is caught by the protrusion catching part 61 of the fixing pin moving means 6 to move the fixing pin moving means 6. It moves in the (i) direction.
  • one end of the fixing pin 5 connected by the fixing pin moving means 6 and the hinge h2 is also moved in the same direction, and thus the hinge h1.
  • the fixing projection 51 of the fixing pin 5 is rotated in the counterclockwise direction (a direction) to be separated from the fixing groove 11 of the upper frame (1). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction. As shown in FIG. 3, when the lower frame 2 rotates ( ⁇ direction), the fixing protrusion 51 may cause friction while interfering with the outer circumferential surface of the upper frame 1.
  • An auxiliary wheel 54 is formed at the end of the fixing protrusion 51 so that the auxiliary wheel 54 rotates along the outer circumferential surface of the upper frame 1 ( ⁇ direction) and the fixing protrusion 51 and the upper portion. It is possible to prevent the friction between the frames 1 and the resulting damage.
  • the fixing protrusion 51 rotates in the clockwise direction (b direction)
  • the other end of the fixing pin 5 also rotates in the same direction about the hinge h1, and thus the hinge h2 is rotated in the same direction.
  • the fixed pin moving means 6 which is connected by the movable means 6 moves in the (ii) direction, and both the rotating part 4 and the wheel 3 rotate in the counterclockwise direction (2 direction) while the caster is fixed in the fixed mode to move forward. do.
  • Such a caster capable of mode switching according to an embodiment of the present invention can be easily switched to the rotation mode with a simple operation of slightly reversing the wheel, and also easy to switch to the fixed mode by using the elastic force of the elastic member. Can be switched.
  • Figure 4 is a cross-sectional view of the state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse
  • Figure 5 is a caster capable of mode switching according to another embodiment of the present invention the fixed mode It is sectional drawing of the state switched to.
  • a caster capable of mode switching includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1, A caster comprising a wheel (3) to rotate in conjunction with the lower frame (2), comprising: a rotating portion (4) coupled to the wheel (3) to rotate with the wheel; A fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) includes a fixing groove (11) embedded in the fixing mode so that the fixing pin (5) can be engaged, the fixing pin (5) is hinged to the lower frame (2), fixing pin ( One end of the 5) includes a fixing protrusion 51 that can be coupled to the fixing groove 11 of the upper frame 1, the other end of the fixing pin 5 is hinged to the fixing pin moving means (6) Coupled,
  • the fixing pin moving means 6 is a portion for moving the fixing pin 5 by using the rotation of the rotating part 4 as in the previous embodiment, the fixing pin 5 and the hinge (h2) is coupled A fixed pin coupling part 62 moving inside the lower frame 2; Rotating portion coupling portion 63 having a hinge (h3) is coupled to the protruding end 621 of the fixed pin coupling portion 62 and the projection engaging portion 61 is caught to the projection 41 of the rotating portion (4) It is formed to include.
  • the fixing pin coupling part 62 is a part for moving the fixing pin 5 coupled by the hinge h2 while stably moving in the fixing pin coupling part insertion hole 21 which will be described later.
  • Protruding portion 622 is formed at one side of the pin coupling portion 62 to press the fixed pin coupling portion spring 22 to be described later, or to use its elastic force, and at one side, a protruding end 621 is formed and hinged.
  • the fixed pin coupling portion 62 and the rotary coupling portion 63 are interlocked together by being connected to the rotary coupling portion 63 by (h3).
  • the rotatable engaging portion 63 is coupled to the fixed pin engaging portion 62 and the hinge (h3) at one end thereof while the other end of the projection engaging portion 61 that can be caught on the projection 41 of the rotating portion (4) Is formed to move in conjunction with the rotation of the rotary unit 4 to move the fixing pin coupling portion 62 together.
  • the lower frame 2 includes a fixing pin coupling part inserting hole 21 in which the fixing pin coupling part 62 is inserted and movable, and the fixing pin at the bottom of the fixing pin coupling part inserting hole 21.
  • the through hole is formed so that the protruding end 621 of the coupling portion 62 may protrude therethrough, and the protrusion 622 and the fixing pin coupling portion spring 22 of the fixing pin coupling portion 62 are positioned on the upper portion thereof.
  • the movable space can be formed.
  • the fixing pin coupling part spring 22 is an elastic member having an elastic force (for example, a spring) and the protrusion part 622 moves in the direction in which the protrusion 622 of the fixing pin coupling part 62 is converted into a rotation mode. 622 is located in connection with the caster is pressed by the protrusion 622 in the process of switching to the rotation mode, and the protrusion 622 is moved by the elastic force in the process of casting the caster in the fixed mode.
  • One end of the fixing pin 5 connected to the fixing pin coupling part 62 is also moved in the same direction by the hinge h2 according to the movement of the fixing pin coupling part 62, and thus the hinge h1.
  • the fixing projection 51 of the fixing pin 5 is rotated in the counterclockwise direction (a direction) to be separated from the fixing groove 11 of the upper frame (1). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
  • the process of converting the caster back to the fixed mode will be described.
  • the lower frame 2 moves forward of the wheel 3. It is rotated so that it can be placed in a straight line and the fixing projections 51 of the fixing pin (5) is in the position coinciding with the fixing groove 11 of the upper frame (1), the fixing pin coupling portion
  • the fixing pin coupling portion As the protrusion 622 of the fixing pin coupling portion 62 is pushed by the elastic force of the spring 22 (or the elastic force of the restoring spring 7 formed at the hinge h1), the fixing pin coupling portion 62 is also pushed.
  • Figure 6 is a cross-sectional view of the state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse
  • Figure 7 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
  • a caster capable of mode switching includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1;
  • the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4);
  • a fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6);
  • Fixing protrusions 51 that can be;
  • the fixing pin 5 is a portion which is connected to the lower frame 2 and linked with the fixing pin moving means 6 to be bound or released from the upper frame 1, as in the previous embodiments, Moving in the fixing pin insertion hole 23 of the lower frame 2 to be described later, one end is formed with a fixing projection 51 that can be bound to the fixing groove 11 of the upper frame (1) The other end is formed with a protrusion 52 for protruding means to be coupled to the fixing pin moving means 6 and the hinge (h2), the fixing projections 51 in accordance with the movement of the fixing pin moving means (6) It can be separated from the fixing groove 11, a detailed description thereof will be described later.
  • one side of the fixing pin 5 may be formed with a protrusion 53 that protrudes and moves within the fixing pin insertion hole 23, which presses or fixes the elastic pin spring 24 to be described later. That's where it becomes available.
  • the lower frame 2 includes a fixing pin insertion hole 23 which can be moved by the fixing pin 5 is inserted, the lower portion of the fixing pin insertion hole 23 is a projection 52 for the movement means
  • a through hole may be formed to protrude through, and a space in which the protrusion 53 and the fixing pin spring 24 may be positioned may move.
  • the fixing pin spring 24 is an elastic member having an elastic force (for example, a spring) and is positioned in connection with the protrusion 53 in a moving direction in the process of the protrusion 53 being switched to the rotation mode. In the process of switching to the rotation mode is pressed by the protrusion 53, in the process of the caster is converted to the fixed mode to move the protrusion 53 by the elastic force.
  • the fixing pin moving means 6 connected by the hinge h2 also moves in the (ii) direction, and the rotating part 4 and the wheel 3 are both While rotating counterclockwise (2 direction), the caster is fixed in the fixed mode and advanced.
  • FIG 8 is a cross-sectional view of a state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse
  • Figure 9 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
  • the caster capable of mode switching includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1.
  • the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4);
  • a fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6);
  • the rotating part 4 is a part that rotates together with the wheel 3, and unlike the above-described embodiments, instead of the protrusion 41, a moving means inserting means into which the fixing pin moving means 6 can be inserted is connected.
  • the moving means insertion groove 42 may be formed as a 'v' shaped grooves having two sides (421,422) of different lengths forming a constant angle ( ⁇ 1), the moving means insertion groove
  • the fixed pin moving means 6 to be described later into 42 is connected.
  • the fixing pin 5 is hinged (h1) to the lower frame (2), one end of the fixing pin has a fixing protrusion 51 that can be bound to the fixing groove 11 of the upper frame (1)
  • the other end of the fixing pin includes a moving means catching part 55 that can be caught by the fixing pin moving means 6 only when the rotating part 4 rotates in the backward direction.
  • the moving means catching part 55 is formed to a length such that it does not directly contact the rotating part 4, and the rotating part 4 or the fixed part when the rotating part 4 rotates in the forward direction (2 direction).
  • the long side 6a of the fixing pin moving means 6 which is not in contact with the pin moving means 6 but protrudes from the outer circumferential surface of the rotating part 4 when the rotating part 4 rotates in the backward direction (1 direction). Contact and rotate in the (i) direction.
  • the fixing pin moving means 6 has a shape corresponding to the moving means insertion groove 42, and the lengths of two sides 6a and 6b having different lengths are two sides 421 and 422 of the moving means insertion groove 42. ) Is equal to the length of, but the included angle ( ⁇ 2) between the two sides (6a, 6b) is formed in a shape smaller than the included angle ( ⁇ 1) between the two sides (421,422) of the moving means insertion groove 42, the moving means The hinge h4 is coupled to the rotating part 4 in the insertion groove 42 to be rotated according to the rotation direction of the rotating part 4.
  • the fixed pin moving means 6 when the rotating part 4 rotates in the counterclockwise direction (2 direction) to move forward, the fixed pin moving means 6 has a long side 6a of the long side 421 of the moving means insertion groove 42.
  • the fixed pin moving means 6 is not in contact with the moving means catching portion 55 of the fixing pin 5 because it rotates in contact with the rotary pin 4, but clockwise (1 direction) for the rotating part 4 to move backward.
  • the fixing protrusion 51 of the fixing pin 5 moves around the hinge h1 in the direction a and the fixing groove 11 of the upper frame 1 is moved. ). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
  • the moving means catching part 55 rotates in the (ii) direction about the hinge h1, and the fixing pin moving means 6 and the rotating part. Both the 4 and the wheel 3 rotate in the counterclockwise direction (2 direction), and the caster is fixed and moved forward in the fixed mode.
  • Figure 11 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
  • a caster capable of mode switching includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1 and In the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4); A fixing pin (5) connected to the upper frame (1) and linked to or fixed to the lower pin (2) to be connected to the lower frame (2); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) comprises a fixing pin groove 12 which can be connected to the fixing pin (5), the lower frame (2) is a movement means groove (27) that can be connected to the fixing pin moving means (6) ), Wherein the fixing pin (5) is moved downward in the fixing means groove (27) located in the lower portion of the fixing pin groove (12) in the fixing mode and is bound to the lower frame (2), the fixing The pin moving means (6) when the rotating part 4 is rotate
  • the upper frame 1 includes a fixing pin groove 12 into which the fixing pin 5 can be inserted, and the fixing pin groove 12 is recessed upwardly from the lower portion of the upper frame 1.
  • the fixing pin 5 is moved therein.
  • a fixing pin spring 13 is included in the fixing pin groove 12, and the fixing pin spring 13 is an elastic member (for example, a spring) having an elastic force as in the fixing pin spring 24.
  • the fixing pin 5 is positioned in connection with the fixing pin 5 in the moving direction in the process of switching to the rotation mode, and is pressed by the fixing pin 5 in the process of changing the caster to the rotation mode, and the caster is fixed. In the process of switching to the mode is to move the fixing pin (5) by the elastic force.
  • the lower frame 2 includes a moving means groove 27 to which the fixing pin moving means 6 can be inserted and connected, and the moving means groove 27 is located at a position corresponding to the fixing pin groove 12. Is formed so that the fixing pin (5) of the fixing pin groove 12 is also moved to the groove for the moving means 27 to fix the lower frame (2).
  • the fixing pin moving means (6) inserted into the moving means groove (27) is in contact with the lower portion of the fixing pin (5) at the top to be able to move the fixing pin (5).
  • the moving means groove 27 is formed with a protruding jaw 271 protruding from the inner circumferential surface, which is to prevent the fixing pin moving means 6 inserted into the moving means groove 27 from being separated.
  • the moving means 6 is provided with a protrusion 6c corresponding to the protruding jaw 271 so that the fixing pin moving means 6 is not detached by the protruding portion 6c being caught by the protruding jaw 271. .
  • the fixing pin 5 is formed in a shape corresponding to the fixing pin groove 12 and the moving means groove 27, in the fixing mode by the elastic force of the fixing pin spring 13 in the fixing pin groove 12
  • the lower frame (2) is fixed by moving to the moving means groove (27), and in the rotating mode, the fixed pin moving means (6) is pushed into the fixing pin groove (12).
  • the fixing pin moving means (6) is a part for moving the fixing pin (5) while moving in the groove (27) for the moving means by the projection (41) of the rotating part (4), the fixing pin moving means ( One end of the 6) is located in the groove 27 for the moving means, and the other end thereof is caught by the protrusion 41 when the rotary part 4 rotates in the reverse direction (clockwise, 1 direction).
  • the fixing pin 5 is formed to a length enough to be separated to the outside of the groove 27 for the moving means.
  • one end of the fixing pin moving means 6 located in the moving means groove 27 may include a protrusion 6c corresponding to the protrusion jaw 271, wherein the protrusion 6c is the protrusion jaw.
  • the locking pin moving means 6 is prevented from being separated from the groove 27 for the moving means by being caught by the 271.
  • the fixing pin moving means (6) may be formed in the middle of the bending incision (6e), the bending incision (6e) is the fixing pin moving means (6) of the rotating part (4) It is to prevent the interference of the rotation of the rotary part 4 by interfering with the projection 41 during the rotation of the forward direction (counterclockwise, 2 direction), the middle of the fixing pin moving means (6) And the other side of the side in contact with the protrusion 41 of the incision surface is formed to form a '>' groove and then the hinged upper and lower sections are combined by the rotating portion (4) while rotating in the forward direction the bending When the protrusions 41 are in contact with the fixing pin moving means 6 at the lower portion of the melt cut portion 6e, the fixing pin moving means 6 is bent around the bending cutout 6e to rotate the rotating part. We do not disturb rotation of (4).
  • the fixing pin moving means 6 which is in contact with the fixing pin 5 also moves in the (ii) direction, and the rotating part ( 4) and the wheel 3 are both rotated counterclockwise (2 direction), the caster is fixed in the fixed mode to move forward.
  • the fixing pin moving means 6 is bent around the bending cutout 6e as described above so as not to interfere with the protrusion 41 of the rotating part 4 rotating counterclockwise (2 direction). This does not interfere with the rotation of the rotating part (4).
  • Figure 12 is a cross-sectional view of a state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse
  • Figure 13 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
  • a caster capable of mode switching includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1.
  • the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4);
  • a fixing pin (5) connected to the upper frame (1) and linked to or fixed to the lower pin (2) to be connected to the lower frame (2);
  • a fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the fixing pin (5) is one end is hinged to the upper frame (1), the other end includes a fixing protrusion 51 that can be bound to the following fixing pin moving part insertion hole 25 of the lower frame (2),
  • the fixed pin moving means (6) is a fixed pin moving part 64 to move in the lower frame (2) and to move the fixed pin (5); Rotating portion coupling portion 63 is hinged to the protruding end of the fixed pin moving portion 64
  • the fixing pin 5 has one end coupled to the upper frame 1 by a hinge h1, and the other end is bound to the following fixing pin moving part insertion hole 25 of the lower frame 2. It includes a fixing protrusion 51 which can be, whereby the fixing pin 5 is fixed pin moving part (6) of the fixing pin moving means (6) moving in the fixing pin moving part insertion hole (25) In connection with the movement of 64, the lower frame 2 is bound or released, thereby switching to a fixed mode in which the lower frame 2 is fixed or a rotating mode in which the lower frame 2 can be rotated. The operation principle will be described later.
  • the fixing pin moving means 6 is a portion for moving the fixing pin 5 by using the rotation of the rotating part 4 as in the previous embodiments, and the fixing pin moving part of the lower frame 2 is inserted.
  • a moving pin 64 moving in the ball 25 and coming into contact with the fixing protrusion 51 of the fixing pin 5; Hinge (h3) is coupled to the protruding end 641 of the fixed pin moving part 64 and the rotating portion engaging portion 63 is formed with a projection engaging portion 61 that can be caught on the projection 41 of the rotating part (4) It is formed to include.
  • the fixing pin moving part 64 is fixed to the fixing pin 5 which is fixed to the fixing pin moving part insertion hole 25 while stably moving in the fixing pin moving part insertion hole 25 which will be described later.
  • a protrusion 642 is formed at one side of the fixing pin moving part 64 to press the fixing pin moving part spring 26 to be described later, or to use the elastic force.
  • One end 641 protruding from the other side is connected to the rotary coupling unit 63 by a hinge h3 so that the fixed pin moving unit 64 and the rotary coupling unit 63 interlock together.
  • the rotatable portion engaging portion 63 is coupled to the fixing pin moving portion 64 and the hinge (h3) at one end thereof, the other end of the projection engaging portion 61 that can be caught on the projection 41 of the rotating portion 4 Is formed to move in conjunction with the rotation of the rotary unit 4 can move the fixing pin moving unit 64 together.
  • Detailed operation principle of the fixing pin moving means 6 will be described later.
  • the lower frame 2 includes a fixing pin moving part insertion hole 25 through which the fixing pin moving part 64 is inserted and moved.
  • the fixing pin is located below the fixing pin moving part insertion hole 25.
  • a through hole is formed so that the protruding end 641 of the moving part 64 can protrude through, and the protrusion 642 and the fixing pin moving part spring 26 of the fixing pin moving part 64 are positioned on the upper part thereof.
  • the movable space can be formed.
  • the fixing pin moving part spring 26 is an elastic member having an elastic force (for example, a spring) and the protrusion part in a direction in which the protrusion 642 of the fixing pin moving part 64 moves in the process of being converted to the rotation mode. 642), the caster is pressed by the protrusion 642 when the caster is switched to the rotation mode, and the protrusion 642 is moved by the elastic force when the caster is switched to the fixed mode.
  • the fixing pin moving portion 64 connected by the rotary coupling portion 63 and the hinge (h3) also in the same direction in the fixed pin moving portion insertion hole (25)
  • the protrusion 642 of the fixing pin moving part 64 presses the fixing pin moving part spring 26.
  • the fixing pin moving part 64 moves in the (i) direction
  • the fixing pin 51 of the fixing pin 5 bound in the fixing pin moving part insertion hole 25 is pushed, and thus The fixing protrusion 51 of the fixing pin 5 around the hinge h1 is rotated in a counterclockwise direction (a direction) so as to be separated from the fixing pin moving part insertion hole 25 of the lower frame 2. do. Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
  • the process of switching the caster back to the fixed mode will be described.
  • the lower frame 2 moves forward of the wheel 3. Rotate so that it can be placed in a straight line in the direction when the fixing projection 51 of the fixing pin 5 is in the position coinciding with the fixing pin moving part insertion hole 25 of the lower frame (2),
  • the elastic force of the restoring spring (7) formed in the hinge (h1) is bound in the fixing pin moving part insertion hole 25 while rotating in the clockwise direction (b).
  • the fixing pin moving part 64 is pushed by the fixing protrusion 51 inserted into the fixing pin moving part insertion hole 25, as well as the protrusion 642 of the fixing pin moving part 64.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

The present invention relates to a mode-convertible caster, and more particularly, to a mode-convertible caster comprising: a fixed upper frame; a lower frame rotatably coupled to the upper frame; a wheel which is coupled to the lower frame and which rotates; a rotating unit coupled to the wheel to rotate together with the wheel; a locking pin which is connected to the lower frame (upper frame), and which is linked with locking-pin-moving means to be locked to or unlocked from the upper frame (lower frame); and said locking-pin-moving means for moving the locking pin using the rotation of the rotating unit, thereby easily switching modes into a fixed mode in which the lower frame is fixed or a rotatable mode in which the lower frame is rotatable.

Description

모드전환이 가능한 캐스터Mode changeable caster
본 발명은 모드전환이 가능한 캐스터에 관한 것으로, 보다 상세하게는 고정된 상부프레임과, 상기 상부프레임에 회전가능하게 결합하는 하부프레임과, 상기 하부프레임에 결합하여 회전하는 휠을 포함하는 캐스터에 있어서, 상기 휠에 결합하여 휠과 함께 회전하는 회전부; 상기 하부프레임(상부프레임)에 연결되고 하기 고정핀이동수단과 연동되어 상기 상부프레임(하부프레임)에 결속되거나 결속이 해제되는 고정핀; 상기 회전부의 회전을 이용하여 상기 고정핀을 이동시키는 고정핀이동수단;을 포함함으로써, 하부프레임이 고정된 상태의 고정모드나 하부프레임이 회전할 수 있는 상태의 회전모드로 용이하게 모드전환할 수 있는 것을 특징으로 모드전환이 가능한 캐스터에 관한 것이다. The present invention relates to a caster capable of mode switching, and more particularly, to a caster including a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel rotating in combination with the lower frame. Rotating portion coupled to the wheel to rotate with the wheel; A fixing pin connected to the lower frame (upper frame) and interlocked with or fixed to the upper frame (lower frame) by interlocking with the following fixing pin moving means; By including a fixed pin moving means for moving the fixing pin by using the rotation of the rotating unit, it is possible to easily switch between the fixed mode of the lower frame fixed state or the rotation mode of the lower frame can be rotated state The present invention relates to a caster capable of switching modes.
대형 상점이나 공항 등에서 사용되는 운반용 카트나 유모차 등에 사용되는 캐스터는 많은 하중이 작용하는 상태에서도 큰 힘을 들이지 않고 밀거나 당겨 편리하게 이동이 가능하도록 한다. 운반용 카트 등은 보통 4개의 바퀴를 가지고 있고 이들 중 2개 또는 4개의 바퀴를 캐스터 형태로 장착하게 되는데, 이러한 경우 종래의 캐스터를 사용하게 되면 다음과 같은 문제점들이 발생한다.Casters used in transport carts or baby carriages used in large shops or airports can be easily moved by pushing or pulling without heavy force even under heavy loads. Carrying carts usually have four wheels, and two or four of them are mounted in a caster shape. In this case, the following problems occur when using a conventional caster.
운반용 카트 등에 사용되는 4개의 바퀴 중 2개만 캐스터로 하고 나머지 2개는 고정식으로 장착하는 경우에는 직진하면서 방향을 전환할 시에 고정된 2개의 바퀴 중 회전하려는 방향에 위치한 바퀴가 회전축 역할을 하게 되어 직진하려는 관성에 쉽게 저항할 수 있고 이에 의해 적은 힘으로도 방향전환을 용이하게 할 수 있다는 장점이 있기는 하나, 정지상태에서 측면으로 이동하고자 하는 경우에는 고정된 2개의 바퀴와 바닥면과의 마찰에 의해 측면이동이 어려워 좁은 공간에서 측면으로 회피를 해야 하거나 좁은 공간에서 정확한 위치로 이동하기가 곤란하고 이를 위해서는 고정된 바퀴들을 들어주는 등의 마찰을 줄여주는 별도의 동작이 필요하다는 문제점이 있다.If only two of the four wheels used in the transport cart are casters, and the other two are fixedly mounted, the wheels located in the direction of rotation among the two fixed wheels will function as the rotating shaft when moving in a straight direction. It has the advantage of being able to easily resist inertia to go straight, thereby facilitating a change of direction with little force, but if you want to move sideways while stationary, friction between the two fixed wheels and the floor It is difficult to move sideways in the narrow space by the side or difficult to move to the exact position in the narrow space by this, there is a problem that requires a separate operation to reduce the friction, such as lifting the fixed wheels.
또한, 운반용 카트 등에 사용되는 4개의 바퀴 모두를 캐스터로 장착하는 경우에는 좁은 공간에서의 운반용 카트의 이동성은 매우 자유롭게 되나, 직진하면서 방향을 전환할 시에는 직진을 하는 관성에 저항할 만한 축이 없기 때문에 사용자의 인력으로 저항축을 만들어주어야 하므로 많은 힘이 소요되고 이 경우 운반용 카트 등의 예측할 수 없는 움직임에 의한 사고가 발생하기도 하는 문제점이 있다.In addition, when all four wheels used for transport carts are mounted as casters, the mobility of the transport carts is very free in a narrow space, but there is no shaft that can resist the inertia to go straight when changing direction while going straight. Because of the need to create a resistance shaft with the user's manpower is a lot of force, in this case there is a problem that an accident due to unpredictable movement of the transport cart.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, The present invention has been made to solve the above problems,
본 발명의 목적은 캐스터를 자유롭게 방향전환이 가능한 회전모드나 직진방향으로 고정될 수 있는 고정모드로 전환시킬 수 있을 뿐만 아니라, 휠을 약간 후진시키거나 전진시키는 간단한 동작만으로 쉽게 모드를 전환시킬 수 있도록 함으로써, 좁은 공간에서의 측면이동뿐만 아니라 직진하면서 방향전환도 용이하게 할 수 있도록 하는 모드전환이 가능한 캐스터를 제공하는 것이다. The object of the present invention is not only to switch the caster to the rotational mode that can be freely changed or the fixed mode that can be fixed in a straight direction, but also to easily change the mode with a simple operation of slightly backward or forward the wheel. Thus, to provide a caster capable of mode switching to facilitate the change of direction while going straight as well as lateral movement in a narrow space.
본 발명의 다른 목적은 휠의 후진에 의해 회전모드로 전환한 후에 다시 고정모드로 전환되는 과정에서 탄성부재의 탄성력을 이용할 수 있도록 하여 용이하게 모드전환할 수 있는 모드전환이 가능한 캐스터를 제공하는 것이다. Another object of the present invention is to provide a caster capable of mode switching that can be easily switched between modes by allowing the elastic force of the elastic member to be used in the process of switching back to the fixed mode after the wheel is rotated by the reverse of the wheel. .
본 발명의 또 다른 목적은 회전모드에서 캐스터가 방향전환을 하는 경우 발생하는 부재 간의 마찰력과 부재의 손상을 방지할 수 있는 모드전환이 가능한 캐스터를 제공하는 것이다. Still another object of the present invention is to provide a caster capable of mode switching, which can prevent friction between members and damage to the members generated when the caster changes direction in the rotation mode.
상술한 본 발명의 목적을 달성하기 위한 모드전환이 가능한 캐스터는 다음과 같은 구성을 포함한다. The caster capable of mode switching for achieving the above object of the present invention includes the following configuration.
본 발명의 일 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터는 고정된 상부프레임과, 상기 상부프레임에 회전가능하게 결합하는 하부프레임과, 상기 하부프레임에 결합하여 회전하는 휠을 포함하는 캐스터에 있어서, 상기 휠에 결합하여 휠과 함께 회전하는 회전부; 상기 하부프레임에 연결되고 하기 고정핀이동수단과 연동되어 상기 상부프레임에 결속되거나 결속이 해제되는 고정핀; 상기 회전부의 회전을 이용하여 상기 고정핀을 이동시키는 고정핀이동수단;을 포함함으로써, 하부프레임이 고정된 상태의 고정모드나 하부프레임이 회전할 수 있는 상태의 회전모드로 용이하게 모드전환할 수 있는 것을 특징으로 한다. According to an embodiment of the present invention, the mode changeable caster according to the present invention includes a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel that rotates to couple to the lower frame. A caster, comprising: a rotating portion coupled to the wheel to rotate together with a wheel; A fixing pin connected to the lower frame and interlocked with the fixing pin moving means to be bound or released from the upper frame; By including a fixed pin moving means for moving the fixing pin by using the rotation of the rotating unit, it is possible to easily switch between the fixed mode of the lower frame fixed state or the rotation mode of the lower frame can be rotated state It is characterized by being.
본 발명의 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 회전부는 돌출된 돌기를 포함하며, 상기 상부프레임은 고정모드에서 상기 고정핀이 결속될 수 있도록 함입된 고정홈을 포함하며, 상기 고정핀은 상기 하부프레임에 힌지결합되고, 고정핀의 일단은 상기 상부프레임의 고정홈에 결속될 수 있는 고정용돌기를 포함하고, 고정핀의 타단은 상기 고정핀이동수단에 힌지결합되며, 상기 고정핀이동수단은 일단은 상기 고정핀과 힌지결합하고, 타단은 상기 회전부의 돌기에 걸릴 수 있는 돌기걸림부를 포함하는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the rotating part includes a protruding protrusion, and the upper frame has a fixing groove in which the fixing pin is embedded so that the fixing pin can be engaged in the fixing mode. It includes, the fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing projection that can be bound to the fixing groove of the upper frame, the other end of the fixing pin is hinged to the fixing pin moving means Is coupled, the fixing pin moving means is one end hinged to the fixing pin, the other end is characterized in that it comprises a projection engaging portion that can be caught in the projection of the rotating part.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 회전부는 돌출된 돌기를 포함하며, 상기 상부프레임은 고정모드에서 상기 고정핀이 결속될 수 있도록 함입된 고정홈을 포함하며, 상기 고정핀은 상기 하부프레임에 힌지결합되고, 고정핀의 일단은 상기 상부프레임의 고정홈에 결속될 수 있는 고정용돌기를 포함하고, 고정핀의 타단은 상기 고정핀이동수단에 힌지결합되며, 상기 고정핀이동수단은 상기 고정핀과 힌지결합되고 상기 하부프레임의 내부에서 이동하는 고정핀결합부; 상기 고정핀결합부의 돌출된 일단에 힌지결합되고 상기 회전부의 돌기에 걸릴 수 있는 돌기걸림부가 형성된 회전부결합부;를 포함하며, 상기 하부프레임은 상기 고정핀결합부가 삽입되어 이동할 수 있는 고정핀결합부삽입공을 포함하는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the rotating part includes a protruding protrusion, and the upper frame is a fixing groove in which the fixing pin is engaged so that the fixing pin can be engaged in the fixing mode. It includes, the fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing projection that can be bound to the fixing groove of the upper frame, the other end of the fixing pin to the fixing pin moving means Hinge coupled, the fixed pin moving means is a fixed pin coupling portion hinged to the fixed pin and moving inside the lower frame; Rotating portion coupling portion hinged to the protruding end of the fixed pin coupling portion and formed with a projection engaging portion that can be caught by the projection of the rotating portion; The lower frame is a fixed pin coupling portion that can be moved by inserting the fixed pin coupling portion It characterized in that it comprises an insertion hole.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 고정핀결합부는 일측에 돌출부를 포함하고, 상기 하부프레임은 상기 고정핀결합부삽입공 내에서 상기 돌출부가 회전모드로 전환되는 과정에서 이동하는 방향에 위치하는 고정핀결합부스프링을 포함함으로써, 상기 고정핀결합부스프링의 탄성력에 의해 상기 고정핀이 고정모드로 용이하게 전환될 수 있는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the fixing pin coupling part includes a protrusion on one side, and the lower frame rotates the protrusion in the fixing pin coupling part insertion hole. By including a fixed pin coupling portion spring located in the moving direction in the process of switching to the mode, the fixed pin can be easily converted to the fixed mode by the elastic force of the fixed pin coupling portion spring.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 회전부는 돌출된 돌기를 포함하며, 상기 상부프레임은 고정모드에서 상기 고정핀이 결속될 수 있도록 함입된 고정홈을 포함하며, 상기 고정핀은 상기 상부프레임의 고정홈에 결속될 수 있는 고정용돌기; 상기 고정핀이동수단과 결합할 수 있도록 돌출된 이동수단용돌출부;를 포함하고, 상기 하부프레임의 내부에서 이동하며, 상기 고정핀이동수단은 일단은 상기 이동수단돌출부와 힌지결합하고, 타단은 상기 회전부의 돌기에 걸릴 수 있는 돌기걸림부를 포함하며, 상기 하부프레임은 상기 고정핀이 삽입되어 이동할 수 있는 고정핀삽입공을 포함하는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the rotating part includes a protruding protrusion, and the upper frame is a fixing groove in which the fixing pin is engaged so that the fixing pin can be engaged in the fixing mode. It includes, the fixing pin is a fixing projection that can be bound to the fixing groove of the upper frame; And a protrusion for moving means protruding to engage with the fixing pin moving means, and moving inside the lower frame, wherein the fixing pin moving means is hinged to one end of the moving means protrusion, and the other end is It includes a projection catching portion that can be caught in the projection of the rotating portion, the lower frame is characterized in that it comprises a fixing pin insertion hole that the fixing pin is inserted to move.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 고정핀은 일측에 돌출부를 포함하고, 상기 하부프레임은 상기 고정핀삽입공 내에서 상기 돌출부가 회전모드로 전환되는 과정에서 이동하는 방향에 위치하는 고정핀스프링을 포함함으로써, 상기 고정핀스프링의 탄성력에 의해 상기 고정핀이 고정모드로 용이하게 전환될 수 있는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the fixing pin includes a protrusion on one side, and the lower frame switches the protrusion into the rotation mode in the fixing pin insertion hole. By including a fixing pin spring located in the moving direction in the process, it is characterized in that the fixing pin can be easily switched to the fixed mode by the elastic force of the fixing pin spring.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 고정핀의 고정용돌기의 말단에는 보조휠이 포함되어, 하부프레임이 회전하는 회전모드에서 하부프레임이 용이하게 회전할 수 있도록 함은 물론 고정용돌기의 마찰에 의한 손상을 방지할 수 있는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the auxiliary wheel is included at the end of the fixing protrusion of the fixing pin, so that the lower frame is easily in the rotating mode in which the lower frame rotates. It is possible to rotate as well as to prevent damage due to friction of the fixing projections.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 회전부는 상기 고정핀이동수단이 삽입 연결될 수 있는 이동수단삽입홈을 포함하고, 상기 이동수단삽입홈은 길이가 서로 다른 두 변으로 이루어지며, 상기 상부프레임은 고정모드에서 상기 고정핀이 결속될 수 있도록 함입된 고정홈을 포함하며, 상기 고정핀은 상기 하부프레임에 힌지결합되고, 고정핀의 일단은 상기 상부프레임의 고정홈에 결속될 수 있는 고정용돌기를 포함하고, 고정핀의 타단은 상기 회전부가 후진하는 방향으로 회전하는 경우에만 상기 고정핀이동수단에 걸릴 수 있는 이동수단걸림부를 포함하며, 상기 고정핀이동수단은 상기 이동수단삽입홈의 형상보다 두 변 사이의 끼인각이 작은 형상으로 형성되고, 상기 이동수단삽입홈을 통해 상기 회전부에 힌지결합되어 상기 회전부의 회전방향에 따라 회동할 수 있는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the rotating part includes a moving means insertion groove into which the fixing pin moving means can be inserted and the moving means insertion groove has a length. It is made of two different sides, the upper frame includes a fixing groove which is embedded so that the fixing pin can be engaged in the fixing mode, the fixing pin is hinged to the lower frame, one end of the fixing pin is the upper It includes a fixing projection that can be bound to the fixing groove of the frame, the other end of the fixing pin includes a moving means catching portion that can be caught by the fixing pin moving means only when the rotating part rotates in the reverse direction, the fixing The pin moving means is formed in a shape in which the included angle between the two sides is smaller than the shape of the moving means insertion groove, and through the moving means insertion groove. Is hinged to the rotary part is characterized in that it can be rotated according to the rotation direction of the rotation unit.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터는 고정된 상부프레임과, 상기 상부프레임에 회전가능하게 결합하는 하부프레임과, 상기 하부프레임에 결합하여 회전하는 휠을 포함하는 캐스터에 있어서, 상기 휠에 결합하여 휠과 함께 회전하는 회전부; 상기 상부프레임에 연결되고 하기 고정핀이동수단과 연동되어 상기 하부프레임에 결속되거나 결속이 해제되는 고정핀; 상기 회전부의 회전을 이용하여 상기 고정핀을 이동시키는 고정핀이동수단;을 포함함으로써, 하부프레임이 고정된 상태의 고정모드나 하부프레임이 회전할 수 있는 상태의 회전모드로 용이하게 모드전환할 수 있는 것을 특징으로 한다. According to another embodiment of the present invention, the caster capable of mode switching according to the present invention includes a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel rotating in combination with the lower frame. A caster, comprising: a rotating portion coupled to the wheel to rotate together with a wheel; A fixing pin connected to the upper frame and linked with the following fixing pin moving means to bind or release the binding to the lower frame; By including a fixed pin moving means for moving the fixing pin by using the rotation of the rotating unit, it is possible to easily switch between the fixed mode of the lower frame fixed state or the rotation mode of the lower frame can be rotated state It is characterized by being.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 회전부는 돌출된 돌기를 포함하며, 상기 상부프레임은 상기 고정핀이 삽입 연결될 수 있는 고정핀용홈을 포함하며, 상기 하부프레임은 상기 고정핀이동수단이 삽입 연결될 수 있는 이동수단용홈을 포함하며, 상기 고정핀은 고정모드에서 상기 고정핀용홈의 하부에 위치하는 상기 이동수단용홈으로 하향이동하여 상기 하부프레임에 결속되며, 상기 고정핀이동수단은 회전부가 후진방향으로 회전하는 경우 일단이 상기 회전부의 돌기에 걸려 이동하여 상기 고정핀을 상향이동시켜 상기 하부프레임과의 결속을 해제시키는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the rotating part includes a protruding protrusion, and the upper frame includes a fixing pin groove into which the fixing pin can be inserted. The lower frame includes a groove for moving means to which the fixing pin moving means can be inserted and connected, and the fixing pin moves downward to the moving means groove located below the fixing pin groove in the fixing mode and binds to the lower frame. The fixing pin moving means is characterized in that when the rotating part rotates in the reverse direction, one end is caught by the projection of the rotating part to move the fixing pin upward to release the binding with the lower frame.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 하부프레임은 상기 이동수단용홈 내에 상기 고정핀이동수단이 하향이탈되는 것을 방지하는 돌출턱을 포함하고, 상기 고정핀이동수단은 상기 돌출턱에 대응되는 돌출부를 포함하며, 상기 상부프레임은 상기 고정핀용홈 내에서 상기 고정핀이 회전모드로 전환되는 과정에서 이동하는 방향에 위치하는 고정핀스프링을 포함하여 상기 고정핀스프링의 탄성력에 의해 상기 고정핀이 고정모드로 용이하게 전환될 수 있도록 하는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the lower frame includes a protruding jaw to prevent the fixing pin moving means from falling down in the groove for the moving means, the fixing The pin moving means includes a protrusion corresponding to the protruding jaw, and the upper frame includes a fixing pin spring positioned in a moving direction in the process of switching the fixing pin into the rotation mode within the fixing pin groove. It is characterized in that the fixing pin can be easily switched to the fixed mode by the elastic force of the pin spring.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 고정핀의 말단에는 보조휠이 포함되어, 하부프레임이 회전하는 회전모드에서 하부프레임이 용이하게 회전할 수 있도록 함은 물론 고정핀의 마찰에 의한 손상을 방지할 수 있는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, an auxiliary wheel is included at the end of the fixing pin, so that the lower frame can easily rotate in the rotation mode in which the lower frame rotates. Of course, it is characterized in that to prevent damage by the friction of the fixing pin.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 회전부는 돌출된 돌기를 포함하며, 상기 고정핀은 일단이 상기 상부프레임에 힌지결합되고, 타단은 하부프레임의 하기 고정핀이동부삽입공에 결속될 수 있는 고정용돌기를 포함하며, 상기 고정핀이동수단은 상기 하부프레임의 내부에서 이동하며 상기 고정핀을 이동시키는 고정핀이동부; 상기 고정핀이동부의 돌출된 일단에 힌지결합되고 상기 회전부의 돌기에 걸릴 수 있는 돌기걸림부가 형성된 회전부결합부;를 포함하며, 상기 하부프레임은 상기 고정핀이동부가 삽입되어 이동할 수 있는 고정핀이동부삽입공을 포함하는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the rotating part includes a protruding protrusion, and one end of the fixing pin is hinged to the upper frame and the other end of the lower frame. It includes a fixing projection that can be bound to the fixed pin moving part insertion hole, the fixing pin moving means is a fixed pin moving unit for moving the fixing pin while moving inside the lower frame; And a rotating part coupling part hinged to the protruding end of the fixing pin moving part and formed with a projection catching part capable of being caught by the projection of the rotating part, wherein the lower frame includes a fixing pin to which the fixing pin moving part is inserted and moved. It characterized in that it comprises a moving part insertion hole.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 고정핀이동부는 일측에 돌출부를 포함하고, 상기 하부프레임은 상기 고정핀이동부삽입공 내에서 상기 돌출부가 회전모드로 전환되는 과정에서 이동하는 방향에 위치하는 고정핀이동부스프링을 포함함으로써, 상기 고정핀이동부스프링의 탄성력에 의해 상기 고정핀이동부가 고정모드로 용이하게 전환될 수 있는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the fixing pin moving part includes a protrusion on one side, and the lower frame has the protrusion in the fixing pin moving part insertion hole. By including a fixing pin moving part spring located in the moving direction in the process of switching to the rotation mode, the fixed pin moving part can be easily switched to the fixed mode by the elastic force of the fixed pin moving part spring do.
본 발명의 또 다른 실시예에 따르면, 본 발명에 따른 모드전환이 가능한 캐스터에 있어 상기 상부프레임 또는 하부프레임과 상기 고정핀이 결합된 힌지에는 탄성력에 의해 고정핀의 위치를 고정모드로 용이하게 복원시킬 수 있도록 하는 복원스프링이 형성되는 것을 특징으로 한다. According to another embodiment of the present invention, in the caster capable of mode switching according to the present invention, the hinge of the upper frame or the lower frame and the fixing pin is easily restored to the fixed mode by the elastic force in the fixed mode. It is characterized in that the restoring spring to be formed.
본 발명은 앞서 본 실시예와 하기에 설명할 구성과 결합, 사용관계에 의해 다음과 같은 효과를 얻을 수 있다. The present invention can obtain the following effects by the configuration, combination, and use relationship described above with the present embodiment.
본 발명은 캐스터를 자유롭게 방향전환이 가능한 회전모드나 직진방향으로 고정될 수 있는 고정모드로 전환시킬 수 있을 뿐만 아니라, 휠을 약간 후진시키거나 전진시키는 간단한 동작만으로 쉽게 모드를 전환시킬 수 있도록 함으로써, 좁은 공간에서의 측면이동뿐만 아니라 직진하면서 방향전환도 용이하게 할 수 있도록 하는 모드전환이 가능한 캐스터를 제공한다. The present invention can not only change the caster to a rotation mode that can be freely changed direction or a fixed mode that can be fixed in a straight direction, but also to be able to easily switch the mode by a simple operation of moving the wheel slightly backward or forward, In addition to lateral movement in a narrow space, it provides a caster capable of mode switching to facilitate straight forward direction change.
본 발명은 휠의 후진에 의해 회전모드로 전환한 후에 다시 고정모드로 전환되는 과정에서 탄성부재의 탄성력을 이용할 수 있도록 하여 용이하게 모드전환할 수 있는 모드전환이 가능한 캐스터를 제공한다. The present invention provides a caster capable of mode switching that enables easy mode switching by allowing the elastic force of the elastic member to be used in the process of switching back to the fixed mode after the wheel is rotated by the reverse of the wheel.
본 발명은 회전모드에서 캐스터가 방향전환을 하는 경우 발생하는 부재 간의 마찰력과 부재의 손상을 방지할 수 있는 모드전환이 가능한 캐스터를 제공한다. The present invention provides a caster capable of mode switching to prevent friction between members and damage to the members generated when the caster changes direction in the rotation mode.
도 1은 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도1 is a cross-sectional view of a state in which a caster capable of mode switching according to an embodiment of the present invention is switched to a rotating mode while reversing;
도 2는 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도2 is a cross-sectional view of a state capable of switching the mode according to an embodiment of the present invention is converted to a fixed mode while moving forward
도 3은 도 1에서 상부프레임의 A-A'부분의 절단평면도Figure 3 is a cut plan view of the AA 'portion of the upper frame in Figure 1
도 4는 본 발명의 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도4 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
도 5는 본 발명의 다른 실시예에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도5 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the fixed mode while moving forward;
도 6은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도6 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
도 7은 도 6에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도FIG. 7 is a cross-sectional view of the caster capable of mode switching according to FIG. 6 being switched to the fixed mode while advancing
도 8은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도8 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
도 9는 도 8에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도9 is a cross-sectional view of a state capable of switching the mode according to FIG.
도 10은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도10 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the rotating mode while reversing;
도 11은 도 10에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도FIG. 11 is a cross-sectional view of the caster capable of mode switching according to FIG. 10 being switched to the fixed mode while advancing
도 12는 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도12 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the rotating mode while reversing;
도 13은 도 12에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도FIG. 13 is a cross-sectional view of the caster capable of mode switching according to FIG. 12 being switched to the fixed mode while advancing
도 14는 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터에서 복원스프링의 작동관계를 도시한 단면도14 is a cross-sectional view showing the operation relationship of the restoring spring in the caster capable of mode switching according to an embodiment of the present invention.
*도면에 사용된 주요부호에 대한 설명* Explanation of the main symbols used in the drawings
1: 상부프레임 2: 하부프레임 3: 휠 4: 회전부1: upper frame 2: lower frame 3: wheel 4: rotating part
5: 고정핀 6: 고정핀이동수단 7: 복원스프링5: fixing pin 6: fixing pin moving means 7: restoring spring
11: 고정홈 12: 고정핀용홈 13: 고정핀스프링11: Fixing groove 12: Fixing pin groove 13: Fixing pin spring
21: 고정핀결합부삽입공 22: 고정핀결합부스프링 23: 고정핀삽입공21: fixed pin coupling part insertion hole 22: fixed pin coupling part spring 23: fixed pin insertion hole
24: 고정핀스프링 25: 고정핀이동부삽입공 26: 고정핀이동부스프링24: Fixing pin spring 25: Fixing pin moving part insertion hole 26: Fixing pin moving part spring
27: 이동수단용홈 271: 돌출턱27: vehicle groove 271: protruding jaw
41: 돌기 42: 이동수단용홈 421: 장변 422: 단변 θ1: 끼인각41: protrusion 42: groove for moving means 421: long side 422: short side θ1: included angle
51: 고정용돌기 52: 이동수단용돌출부 53: 돌출부 51: fixing protrusion 52: protrusion for the moving means 53: protrusion
54: 보조휠 55: 이동수단걸림부54: auxiliary wheel 55: moving portion locking portion
61: 돌기걸림부 62: 고정핀결합부 621:돌출된 일단 622: 돌출부61: protrusion engaging portion 62: fixing pin coupling portion 621: protruded end 622: protrusion
63: 회전부결합부 64: 고정핀이동부 641: 돌출된 일단 642: 돌출부63: rotating unit coupling portion 64: fixing pin moving portion 641: protruding end 642: protrusion
6a: 장변 6b: 단변 θ2: 끼인각 6a: long side 6b: short side θ2: included angle
6c: 돌출부 6d: 일단 6e: 꺽임용절개부6c: projection 6d: first 6e: bending incision
h1,h2,h3,h4: 힌지h1, h2, h3, h4: hinge
이하에서는 본 발명에 따른 모드전환이 가능한 캐스터의 바람직한 실시예들을 첨부된 도면을 참조하여 상세히 설명한다. Hereinafter, with reference to the accompanying drawings, preferred embodiments of the caster capable of mode switching according to the present invention will be described in detail.
도 1은 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도이고, 도 2는 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도이고, 도 3은 도 1에서 상부프레임의 A-A'부분의 절단평면도이고, 도 14는 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터에서 복원스프링의 작동관계를 도시한 단면도이다. 1 is a cross-sectional view of a state changeable caster according to an embodiment of the present invention is converted to the rotation mode while reversing, Figure 2 is a fixed mode while the mode switchable caster according to an embodiment of the present invention 3 is a cross-sectional view of a portion A-A 'of the upper frame in FIG. 1, and FIG. 14 illustrates an operation relationship of a restoring spring in a caster capable of mode switching according to an embodiment of the present invention. It is sectional drawing.
도 1 내지 3을 참조하면, 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터는 고정된 상부프레임(1)과, 상기 상부프레임(1)에 회전가능하게 결합하는 하부프레임(2)과, 상기 하부프레임(2)에 결합하여 회전하는 휠(3)을 포함하는 캐스터에 있어서, 상기 휠(3)에 결합하여 휠과 함께 회전하는 회전부(4); 상기 하부프레임(2)에 연결되고 하기 고정핀이동수단(6)과 연동되어 상기 상부프레임(1)에 결속되거나 결속이 해제되는 고정핀(5); 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 고정핀이동수단(6);을 포함하며, 상기 회전부(4)는 돌출된 돌기(41)를 포함하며, 상기 상부프레임(1)은 고정모드에서 상기 고정핀(5)이 결속될 수 있도록 함입된 고정홈(11)을 포함하며, 상기 고정핀(5)은 상기 하부프레임(2)에 힌지결합되고, 고정핀(5)의 일단은 상기 상부프레임(1)의 고정홈(11)에 결속될 수 있는 고정용돌기(51)를 포함하고, 고정핀(5)의 타단은 상기 고정핀이동수단(6)에 힌지결합되며, 상기 고정핀이동수단(6)은 일단은 상기 고정핀(5)과 힌지결합하고, 타단은 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)를 포함함으로써, 하부프레임이 고정된 상태의 고정모드나 하부프레임이 회전할 수 있는 상태의 회전모드로 용이하게 모드전환할 수 있는 것을 특징으로 한다. 1 to 3, a caster capable of mode switching according to an embodiment of the present invention includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1, A caster comprising a wheel (3) to rotate in conjunction with the lower frame (2), comprising: a rotating portion (4) coupled to the wheel (3) to rotate with the wheel; A fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) includes a fixing groove (11) embedded in the fixing mode so that the fixing pin (5) can be engaged, the fixing pin (5) is hinged to the lower frame (2), fixing pin ( One end of the 5) includes a fixing protrusion 51 that can be coupled to the fixing groove 11 of the upper frame 1, the other end of the fixing pin 5 is hinged to the fixing pin moving means (6) Is coupled, the fixing pin moving means 6 is hinged to one end and the fixing pin 5, the other end by including a projection engaging portion 61 that can be caught on the projection 41 of the rotating part (4) It is characterized in that the mode can be easily switched to a fixed mode of the lower frame fixed state or a rotation mode in which the lower frame can rotate.
상기 상부프레임(1)은 쇼피카트나 산업용 손수레 등의 저면에 부착, 고정되는 부분으로, 캐스터의 중심축 역할을 수행하며 상기 상부프레임(1)의 하부는 통상적으로 캐스터의 회전을 고려하여 원형 형상으로 형성될 수 있으며, 후술하는 하부프레임(2)이 그 하부에 회동가능하게 결합하게 된다. 상기 상부프레임(1)은 고정모드에서 상기 고정핀(5)이 결속될 수 있도록 함입된 고정홈(11)을 포함하는데, 상기 고정홈(11)은 상기 상부프레임(1)의 하부 원형 형상의 외주면상에서 캐스터가 직진방향에 위치하였을 때에 상기 고정핀(5)이 위치하게 될 지점에 고정핀(5), 바람직하게는 후술하게될 고정용돌기(51)가 삽입될 수 있을 정도의 깊이로 함입되어 형성된다. The upper frame 1 is a part attached to and fixed to the bottom of a shop cart or an industrial cart, and serves as a central axis of the caster, and a lower portion of the upper frame 1 is generally circular in consideration of the rotation of the caster. It can be formed as, the lower frame 2 to be described later is coupled to the lower portion rotatably. The upper frame 1 includes a fixing groove 11 in which the fixing pin 5 is engaged in the fixing mode, and the fixing groove 11 has a lower circular shape of the upper frame 1. When the caster is positioned on the outer circumferential surface in the straight direction, the fixing pin 5, preferably the fixing protrusion 51 to be described later, can be inserted at a point where the fixing pin 5 will be located. It is formed.
상기 하부프레임(2)은 상기 상부프레임(1)의 하부에서 볼 베어링 등과 같은 공지의 수단을 활용하여 회전가능하게 결합하는 부분으로, 상기 하부프레임(1)의 상부는 통상적으로 캐스터의 회전을 고려하여 원형 형상으로 형성될 수 있고 하부에는 후술하는 휠(3)이 고정 결합되어 회전할 수 있게 된다. 상기 하부프레임(1)의 상부 원형 부분은 상기 휠(3)에 간섭되지 않도록 상기 휠(3)보다 높은 위치에 형성되거나 상기 휠(3)과 간섭되는 부분에 홈(미도시)이 형성될 수 있다. The lower frame 2 is a part rotatably coupled by using a known means such as a ball bearing in the lower portion of the upper frame 1, the upper portion of the lower frame 1 is generally considering the rotation of the caster It can be formed in a circular shape and the wheel 3 to be described later is fixedly coupled to be rotated. The upper circular portion of the lower frame 1 may be formed at a position higher than the wheels 3 so as not to interfere with the wheels 3, or grooves (not shown) may be formed at portions interfering with the wheels 3. have.
상기 휠(3)은 상기 하부프레임(2)의 하부에 고정 결합되어 지면과 마찰하면서 회전하는 부분으로, 상기 하부프레임(2)이 방향전환을 위해 회전모드로 전환된 경우 상기 하부프레임(2)과 일체로 회동하게 된다. 상기 휠(3)의 일 측면 또는 양 측면 또는 휠(3) 사이에는 휠의 회전을 이용하여 상기 고정핀이동수단(6)을 이동시킬 수 있는 회전부(4)가 결합할 수 있다. The wheel 3 is a part which is fixedly coupled to the lower part of the lower frame 2 to rotate while rubbing against the ground, and the lower frame 2 when the lower frame 2 is switched to the rotation mode for changing direction Will be rotated integrally with One side or both sides of the wheel (3) or between the wheel (3) may be coupled to the rotating portion (4) capable of moving the fixing pin moving means 6 by using the rotation of the wheel.
상기 회전부(4)는 상기 휠(3)의 일 측면 또는 양 측면 또는 휠(3) 사이에서 휠(3)과 결합하여 함께 회전하는 부분으로, 상기 휠(3)과 결합하여 함께 회전하면서 상기 고정핀이동수단(6)을 이동시킬 수 있는 한 다양한 형상으로 형성될 수 있는데, 그 일 예로는 상기 휠(3)의 반경보다는 작은 반경을 가지는 원형 형상으로 형성될 수 있으며, 상기 회전부(4)에는 톱니 모양 등으로 돌출된 돌기(41)가 다수 개 형성될 수 있는데, 상기 돌기(41)는 특히 상기 회전부(4)가 후진방향으로 회전하는 경우 후술하는 돌기결합부(61) 등과 맞물려 상기 고정핀이동수단(6)을 이동시킬 수 있게 되며 그 작동원리는 후술하도록 한다. The rotating part 4 is a part which rotates together with the wheel 3 between one side or both sides of the wheel 3 or between the wheels 3, and is fixed while being combined with the wheels 3 to rotate together. The pin moving means 6 may be formed in various shapes as long as it can move. For example, the pin moving means 6 may be formed in a circular shape having a radius smaller than that of the wheel 3. A plurality of protrusions 41 protruding in a sawtooth shape, etc. may be formed, the protrusions 41 are engaged with the protrusion coupling portion 61 and the like, which will be described later, in particular, when the rotating part 4 rotates in the backward direction, the fixing pins. It is possible to move the moving means 6 and its operation will be described later.
상기 고정핀(5)은 상기 하부프레임(2)에 연결되고 하기 고정핀이동수단(6)과 연동되어 상기 상부프레임(1)에 결속되거나 결속이 해제되는 부분으로, 상기 고정핀(5)은 그 중앙부에서 상기 하부프레임(2)에 힌지(h1)로 결합되고, 그 일단은 상기 상부프레임(1)의 고정홈(11)에 결속될 수 있는 고정용돌기(51)를 포함하고, 그 타단은 상기 고정핀이동수단(6)의 일단과 힌지(h2)로 결합될 수 있다. 그로 인해 상기 고정핀(5)은 상기 고정핀이동수단(6)의 움직임에 연동하여 상기 상부프레임(1)에 결속되거나 결속이 해제됨으로써, 하부프레임(2)이 고정되는 상태의 고정모드나 하부프레임(2)이 회전할 수 있는 상태의 회전모드로 전환될 수 있도록 하는데 그 작동원리는 후술하도록 한다. 상기 고정용돌기(51)는 상기 고정핀(5)이 상기 상부프레임(1)의 고정홈(11)에 맞닿게 되는 일단에서 돌출되어 상기 고정홈(11)의 형상에 대응되는 형상으로 형성되는 부분으로, 상기 고정용돌기(51)가 상기 고정홈(11)에 결속됨으로써 상기 하부프레임(2)은 더 이상 회전할 수 없는 고정모드로 유지되게 된다. 또한, 상기 고정용돌기(51)의 말단에는 보조휠(54)이 포함될 수 있는데, 상기 보조휠(54)은 상기 고정용돌기(51)의 말단에 고정되어 회전할 수 있는 구성으로, 회전모드에서 상기 하부프레임(2)이 방향전환을 위해 회전하는 경우 상기 고정핀(5)의 고정용돌기(51)의 말단이 상기 상부프레임(1)의 하부에 맞닿아 회전하면서 발생하는 마찰에 의한 부재의 손상을 방지하기 위해 상기 보조휠(54)이 상기 상부프레임(1)의 하부와 맞닿아 회전할 수 있도록 형성되는 것이다. 또한, 상기 하부프레임(2)과 상기 고정핀(5)이 결합된 힌지(h1)에는 탄성력에 의해 고정핀(5)의 위치를 고정모드로 용이하게 복원시킬 수 있도록 하는 복원스프링(7)이 형성될 수 있는데, 상기 복원스프링(7)은 도 14에 별도로 도시된 바와 같이 상기 힌지(h1)를 감싸며 그 일단은 상기 하부프레임(2)에 고정되고 그 타단은 상기 고정핀(5)에 고정되어, 캐스터가 회전모드로 전환되기 위해 상기 고정핀(5)이 반시계방향(ⓐ방향)으로 이동하는 경우 상기 복원스프링(7)은 벌어지게 됨에 따라 탄성력이 시계방향(ⓑ방향)으로 작용하게 되므로, 상기 고정핀(5)이 고정모드로 전환되기 위해 시계방향(ⓑ방향)으로 이동해야 하는 경우에는 상기 복원스프링(7)의 탄성력에 의해 용이하게 이동할 수 있게 된다. The fixing pin (5) is connected to the lower frame (2) and is linked to the following fixing pin moving means (6) is a portion which is bound or released from the upper frame (1), the fixing pin (5) It is coupled to the lower frame (2) by a hinge (h1) at its central portion, one end thereof includes a fixing protrusion (51) which can be bound to the fixing groove (11) of the upper frame (1), the other end The one end of the fixing pin moving means 6 may be coupled to the hinge (h2). Therefore, the fixing pin 5 is coupled to or released from the upper frame 1 in response to the movement of the fixing pin moving means 6, thereby fixing the lower mode or the lower frame 2 in the fixed state. The frame 2 can be switched to the rotation mode in a rotatable state, the operation principle of which will be described later. The fixing protrusion 51 is formed in a shape corresponding to the shape of the fixing groove 11 is protruded from one end that the fixing pin 5 abuts the fixing groove 11 of the upper frame (1). In part, the fixing protrusion 51 is bound to the fixing groove 11 so that the lower frame 2 is maintained in a fixed mode that can no longer be rotated. In addition, an end of the fixing protrusion 51 may include an auxiliary wheel 54, the auxiliary wheel 54 is fixed to the end of the fixing protrusion 51 to rotate, the rotation mode When the lower frame 2 is rotated to change the direction of the member due to the friction generated while the end of the fixing projections 51 of the fixing pin 5 in contact with the lower portion of the upper frame 1 In order to prevent the damage of the auxiliary wheel 54 is formed to be able to rotate in contact with the lower portion of the upper frame (1). In addition, the hinge h1 coupled to the lower frame 2 and the fixing pin 5 has a restoring spring 7 for easily restoring the position of the fixing pin 5 to the fixed mode by an elastic force. The restoring spring 7 surrounds the hinge h1 as shown separately in FIG. 14, one end of which is fixed to the lower frame 2 and the other end of which is fixed to the fixing pin 5. When the fixing pin 5 moves counterclockwise (ⓐ direction) so that the caster enters the rotation mode, the restoring spring 7 is opened so that the elastic force acts clockwise (ⓑ direction). Therefore, when the fixing pin 5 is to be moved in the clockwise direction (ⓑ direction) in order to switch to the fixed mode, it can be easily moved by the elastic force of the restoring spring (7).
상기 고정핀이동수단(6)은 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 부분으로, 그 일단은 상기 고정핀(5)의 일단과 힌지(h2)로 결합되고, 그 타단은 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)를 포함한다. 상기 돌기걸림부(61)는 상기 회전부(4)의 돌기(41)에 걸릴 수 있도록 상기 돌기(41)에 상응하는 형상으로 함입되어 형성될 수 있다. The fixing pin moving means 6 is a part for moving the fixing pin 5 by using the rotation of the rotating part 4, one end of which is coupled to one end of the fixing pin 5 by a hinge h2. , The other end includes a projection catching portion 61 which can be caught by the projection 41 of the rotating part 4. The protrusion catching portion 61 may be formed by being recessed into a shape corresponding to the protrusion 41 so as to be caught by the protrusion 41 of the rotating part 4.
이하에서는 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터가 회전모드로 전환하는 과정과 고정모드로 전환하는 과정에 대해 상세히 설명하도록 한다. Hereinafter, a process of switching a caster capable of mode switching according to an embodiment of the present invention to a rotation mode and a process of switching to a fixed mode will be described in detail.
도 1을 참조하여 캐스터가 회전모드로 전환하는 과정에 대해 설명하면, 먼저 사용자가 캐스터가 장착된 카트 등을 후진시키게 되면 상기 휠(3)이 후진하는 방향 즉, 시계방향(①방향)으로 회전하고 그에 따라 상기 회전부(4) 역시 시계방향(①방향)으로 회전하면서 상기 돌기(41)가 상기 고정핀이동수단(6)의 돌기걸림부(61)에 걸리면서 상기 고정핀이동수단(6)을 (i)방향으로 이동시키게 된다. 상기 고정핀이동수단(6)의 이동에 따라 상기 고정핀이동수단(6)과 힌지(h2)에 의해 연결된 상기 고정핀(5)의 일단 역시 같은 방향으로 이동하게 되고, 그에 따라 상기 힌지(h1)을 중심으로 상기 고정핀(5)의 고정용돌기(51)는 반시계방향(ⓐ방향)으로 회전하면서 상기 상부프레임(1)의 고정홈(11)에서 이탈하게 된다. 그에 따라 상기 하부프레임(2)은 자유롭게 방향을 회전할 수 있는 회전모드로 전환하게 된다. 도 3에 도시된 바와 같이 상기 하부프레임(2)이 회전(ⓒ방향)하는 경우 상기 고정용돌기(51)가 상기 상부프레임(1)의 외주면과 간섭되면서 마찰을 일으킬 수 있는데, 이를 방지하기 위해 상기 고정용돌기(51)의 말단에는 보조휠(54)이 형성되어 상기 보조휠(54)이 상기 상부프레임(1)의 외주면을 따라 회전(ⓒ방향)하면서 상기 고정용돌기(51)와 상부프레임(1) 간의 마찰과 그로 인한 손상을 방지할 수 있게 된다. Referring to FIG. 1, the process of converting the caster to the rotation mode will be described. First, when the user reverses a cart on which the caster is mounted, the wheel 3 rotates backward, that is, clockwise (① direction). Accordingly, while the rotation part 4 also rotates clockwise (① direction), the protrusion 41 is caught by the protrusion catching part 61 of the fixing pin moving means 6 to move the fixing pin moving means 6. It moves in the (i) direction. According to the movement of the fixing pin moving means 6, one end of the fixing pin 5 connected by the fixing pin moving means 6 and the hinge h2 is also moved in the same direction, and thus the hinge h1. The fixing projection 51 of the fixing pin 5 is rotated in the counterclockwise direction (ⓐ direction) to be separated from the fixing groove 11 of the upper frame (1). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction. As shown in FIG. 3, when the lower frame 2 rotates (© direction), the fixing protrusion 51 may cause friction while interfering with the outer circumferential surface of the upper frame 1. An auxiliary wheel 54 is formed at the end of the fixing protrusion 51 so that the auxiliary wheel 54 rotates along the outer circumferential surface of the upper frame 1 (© direction) and the fixing protrusion 51 and the upper portion. It is possible to prevent the friction between the frames 1 and the resulting damage.
도 2를 참조하여 캐스터가 다시 고정모드로 전환되는 과정에 대해 설명하면, 회전모드 상태에서 사용자가 캐스터가 장착된 카트 등을 전진시키게 되면 상기 하부프레임(2)은 상기 휠(3)이 전진하는 방향에 일직선으로 놓일 수 있도록 회전하게 되고 이때 상기 고정핀(5)의 고정용돌기(51)가 상기 상부프레임(1)의 고정홈(11)과 일치하는 위치에 오게 되면, 상기 힌지(h1)에 형성된 복원스프링(7)의 탄성력에 의해 상기 고정용돌기(51)는 시계방향(ⓑ방향)으로 회전하여 상기 고정홈(11)에 삽입되게 된다. 상기 고정용돌기(51)가 시계방향(ⓑ방향)으로 회전함에 따라 상기 힌지(h1)를 중심으로 상기 고정핀(5)의 타단 역시 같은 방향으로 회전하게 되고, 그에 따라 상기 힌지(h2)에 의해 연결된 상기 고정핀이동수단(6)은 (ii)방향으로 이동하게 되고 상기 회전부(4)와 휠(3)은 모두 반시계방향(②방향)으로 회전하면서 캐스터는 고정모드로 고정되어 전진하게 된다. Referring to FIG. 2, a process in which the caster is switched to the fixed mode again is described. When the user moves the cart on which the caster is mounted in the rotation mode, the lower frame 2 moves forward of the wheel 3. It rotates so that it can be placed in a straight line and the fixing projections (51) of the fixing pin (5) when it comes to a position coinciding with the fixing groove (11) of the upper frame (1), the hinge (h1) By the elastic force of the restoring spring (7) formed in the fixing projection 51 is rotated in the clockwise direction (ⓑ direction) is inserted into the fixing groove (11). As the fixing protrusion 51 rotates in the clockwise direction (ⓑ direction), the other end of the fixing pin 5 also rotates in the same direction about the hinge h1, and thus the hinge h2 is rotated in the same direction. The fixed pin moving means 6 which is connected by the movable means 6 moves in the (ii) direction, and both the rotating part 4 and the wheel 3 rotate in the counterclockwise direction (② direction) while the caster is fixed in the fixed mode to move forward. do.
이와 같은 본 발명의 일 실시예에 따른 모드전환이 가능한 캐스터는 휠을 약간 후진시키는 간단한 동작만으로 용이하게 회전모드로 전환할 수 있음은 물론, 탄성부재의 탄성력을 이용함으로써 고정모드로의 전환 역시 용이하게 전환할 수 있게 된다. Such a caster capable of mode switching according to an embodiment of the present invention can be easily switched to the rotation mode with a simple operation of slightly reversing the wheel, and also easy to switch to the fixed mode by using the elastic force of the elastic member. Can be switched.
도 4는 본 발명의 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도이고, 도 5는 본 발명의 다른 실시예에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도이다. Figure 4 is a cross-sectional view of the state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse, Figure 5 is a caster capable of mode switching according to another embodiment of the present invention the fixed mode It is sectional drawing of the state switched to.
도 4 내지 5를 참조하면, 본 발명의 다른 실시예에 따른 모드전환이 가능한 캐스터는 고정된 상부프레임(1)과, 상기 상부프레임(1)에 회전가능하게 결합하는 하부프레임(2)과, 상기 하부프레임(2)에 결합하여 회전하는 휠(3)을 포함하는 캐스터에 있어서, 상기 휠(3)에 결합하여 휠과 함께 회전하는 회전부(4); 상기 하부프레임(2)에 연결되고 하기 고정핀이동수단(6)과 연동되어 상기 상부프레임(1)에 결속되거나 결속이 해제되는 고정핀(5); 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 고정핀이동수단(6);을 포함하며, 상기 회전부(4)는 돌출된 돌기(41)를 포함하며, 상기 상부프레임(1)은 고정모드에서 상기 고정핀(5)이 결속될 수 있도록 함입된 고정홈(11)을 포함하며, 상기 고정핀(5)은 상기 하부프레임(2)에 힌지결합되고, 고정핀(5)의 일단은 상기 상부프레임(1)의 고정홈(11)에 결속될 수 있는 고정용돌기(51)를 포함하고, 고정핀(5)의 타단은 상기 고정핀이동수단(6)에 힌지결합되며, 상기 고정핀이동수단(6)은 상기 고정핀(5)과 힌지결합되고 상기 하부프레임(2)의 내부에서 이동하는 고정핀결합부(62); 상기 고정핀결합부(62)의 돌출된 일단(621)에 힌지결합되고 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)가 형성된 회전부결합부(63);를 포함하며, 상기 하부프레임(2)은 상기 고정핀결합부(62)가 삽입되어 이동할 수 있는 고정핀결합부삽입공(21)을 포함하는 것을 특징으로 한다. 상기 구성요소들 중 앞서 설명한 본 발명의 일 실시예의 구성요소와 동일한 구성요소에 대해서는 중복기재를 피하기 위해 설명을 생략하기로 하고, 이하에서는 차이점이 있는 구성요소에 대해서만 집중적으로 설명하기로 한다. 4 to 5, a caster capable of mode switching according to another embodiment of the present invention includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1, A caster comprising a wheel (3) to rotate in conjunction with the lower frame (2), comprising: a rotating portion (4) coupled to the wheel (3) to rotate with the wheel; A fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) includes a fixing groove (11) embedded in the fixing mode so that the fixing pin (5) can be engaged, the fixing pin (5) is hinged to the lower frame (2), fixing pin ( One end of the 5) includes a fixing protrusion 51 that can be coupled to the fixing groove 11 of the upper frame 1, the other end of the fixing pin 5 is hinged to the fixing pin moving means (6) Coupled, the fixed pin moving means 6 is a fixed pin coupling portion 62 which is hinged to the fixed pin (5) and moves inside the lower frame (2); Rotating portion coupling portion 63 is hinged to the protruding end 621 of the fixed pin coupling portion 62 and the projection engaging portion 61 is formed to be caught on the projection 41 of the rotating portion (4); And, the lower frame 2 is characterized in that it comprises a fixed pin coupling portion insertion hole 21 which can be moved by the fixed pin coupling portion (62). The same components as those of the exemplary embodiment of the present invention described above will be omitted in order to avoid overlapping descriptions, and hereinafter, only the components having differences will be concentrated.
상기 고정핀이동수단(6)은 앞서의 실시예와 마찬가지로 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 부분으로, 상기 고정핀(5)과 힌지(h2)결합되고 상기 하부프레임(2)의 내부에서 이동하는 고정핀결합부(62); 상기 고정핀결합부(62)의 돌출된 일단(621)에 힌지(h3)결합되고 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)가 형성된 회전부결합부(63);를 포함하여 형성된다. 상기 고정핀결합부(62)는 후술하게 될 상기 고정핀결합부삽입공(21) 내에서 안정적으로 이동하면서 힌지(h2)에 의해 결합된 상기 고정핀(5)을 이동시키는 부분으로, 상기 고정핀결합부(62)의 일측에는 돌출부(622)가 형성되어 후술하게 될 고정핀결합부스프링(22)을 압박하거나 그 탄성력을 이용할 수 있게 되며, 타측에는 돌출된 일단(621)이 형성되어 힌지(h3)에 의해 상기 회전부결합부(63)와 연결됨으로써 상기 고정핀결합부(62)와 회전부결합부(63)가 함께 연동하게 된다. 상기 회전부결합부(63)는 그 일단에서 상기 고정핀결합부(62)와 힌지(h3)결합되어 있으면서 그 타단에는 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)가 형성되어 상기 회전부(4)의 회전에 연동하여 움직이면서 상기 고정핀결합부(62)를 함께 이동시킬 수 있게 된다. The fixing pin moving means 6 is a portion for moving the fixing pin 5 by using the rotation of the rotating part 4 as in the previous embodiment, the fixing pin 5 and the hinge (h2) is coupled A fixed pin coupling part 62 moving inside the lower frame 2; Rotating portion coupling portion 63 having a hinge (h3) is coupled to the protruding end 621 of the fixed pin coupling portion 62 and the projection engaging portion 61 is caught to the projection 41 of the rotating portion (4) It is formed to include. The fixing pin coupling part 62 is a part for moving the fixing pin 5 coupled by the hinge h2 while stably moving in the fixing pin coupling part insertion hole 21 which will be described later. Protruding portion 622 is formed at one side of the pin coupling portion 62 to press the fixed pin coupling portion spring 22 to be described later, or to use its elastic force, and at one side, a protruding end 621 is formed and hinged. The fixed pin coupling portion 62 and the rotary coupling portion 63 are interlocked together by being connected to the rotary coupling portion 63 by (h3). The rotatable engaging portion 63 is coupled to the fixed pin engaging portion 62 and the hinge (h3) at one end thereof while the other end of the projection engaging portion 61 that can be caught on the projection 41 of the rotating portion (4) Is formed to move in conjunction with the rotation of the rotary unit 4 to move the fixing pin coupling portion 62 together.
상기 하부프레임(2)은 상기 고정핀결합부(62)가 삽입되어 이동할 수 있는 고정핀결합부삽입공(21)을 포함하는데, 상기 고정핀결합부삽입공(21)의 하부에는 상기 고정핀결합부(62)의 돌출된 일단(621)이 관통하여 돌출될 수 있도록 관통공이 형성되고, 상부에는 상기 고정핀결합부(62)의 돌출부(622)와 고정핀결합부스프링(22)이 위치하여 이동할 수 있는 공간이 형성될 수 있다. 상기 고정핀결합부스프링(22)은 탄성력을 갖는 탄성부재(일 예로, 스프링)로 상기 고정핀결합부(62)의 돌출부(622)가 회전모드로 전환되는 과정에서 이동하는 방향으로 상기 돌출부(622)에 연하여 위치하는데, 캐스터가 회전모드로 전환되는 과정에서는 상기 돌출부(622)에 의해 압박되다가 캐스터가 고정모드로 전환되는 과정에서는 탄성력에 의해 상기 돌출부(622)를 이동시키게 된다. The lower frame 2 includes a fixing pin coupling part inserting hole 21 in which the fixing pin coupling part 62 is inserted and movable, and the fixing pin at the bottom of the fixing pin coupling part inserting hole 21. The through hole is formed so that the protruding end 621 of the coupling portion 62 may protrude therethrough, and the protrusion 622 and the fixing pin coupling portion spring 22 of the fixing pin coupling portion 62 are positioned on the upper portion thereof. The movable space can be formed. The fixing pin coupling part spring 22 is an elastic member having an elastic force (for example, a spring) and the protrusion part 622 moves in the direction in which the protrusion 622 of the fixing pin coupling part 62 is converted into a rotation mode. 622 is located in connection with the caster is pressed by the protrusion 622 in the process of switching to the rotation mode, and the protrusion 622 is moved by the elastic force in the process of casting the caster in the fixed mode.
이하에서는 본 발명의 다른 실시예에 따른 모드전환이 가능한 캐스터가 회전모드로 전환하는 과정과 고정모드로 전환하는 과정에 대해 상세히 설명하도록 한다. Hereinafter, a process of switching a caster capable of mode switching according to another embodiment of the present invention to a rotation mode and a process of switching to a fixed mode will be described in detail.
도 4를 참조하여 캐스터가 회전모드로 전환하는 과정에 대해 설명하면, 먼저 사용자가 캐스터가 장착된 카트 등을 후진시키게 되면 상기 휠(3)이 후진하는 방향 즉, 시계방향(①방향)으로 회전하고 그에 따라 상기 회전부(4) 역시 시계방향(①방향)으로 회전하면서 상기 돌기(41)가 상기 회전부결합부(63)의 돌기걸림부(61)에 걸리면서 상기 회전부결합부(63)를 (i)방향으로 이동시키게 된다. 상기 회전부결합부(63)의 이동에 따라 상기 회전부결합부(63)와 힌지(h3)에 의해 연결된 상기 고정핀결합부(62)도 같은 방향으로 이동하게 되고 이때 상기 고정핀결합부(62)의 돌출부(622)는 상기 고정핀결합부스프링(22)을 압박하게 된다. 상기 고정핀결합부(62)의 이동에 따라 힌지(h2)에 의해 상기 고정핀결합부(62)와 연결된 상기 고정핀(5)의 일단 역시 같은 방향으로 이동하게 되고, 그에 따라 상기 힌지(h1)을 중심으로 상기 고정핀(5)의 고정용돌기(51)는 반시계방향(ⓐ방향)으로 회전하면서 상기 상부프레임(1)의 고정홈(11)에서 이탈하게 된다. 그에 따라 상기 하부프레임(2)은 자유롭게 방향을 회전할 수 있는 회전모드로 전환하게 된다. Referring to FIG. 4, the process of converting the caster to the rotation mode will be described. First, when the user reverses a cart on which the caster is mounted, the wheel 3 rotates backward, that is, clockwise (① direction). Accordingly, while the rotation part 4 also rotates in the clockwise direction (① direction), the projection 41 is caught by the projection catching part 61 of the rotation part coupling part 63 and thus the rotation part coupling part 63 (i In the direction of). As the rotary coupling unit 63 moves, the fixed pin coupling unit 62 connected by the rotary coupling unit 63 and the hinge h3 is also moved in the same direction, and the fixed pin coupling unit 62 is then moved. Protruding portion of 622 is to press the fixing pin coupling portion spring (22). One end of the fixing pin 5 connected to the fixing pin coupling part 62 is also moved in the same direction by the hinge h2 according to the movement of the fixing pin coupling part 62, and thus the hinge h1. The fixing projection 51 of the fixing pin 5 is rotated in the counterclockwise direction (ⓐ direction) to be separated from the fixing groove 11 of the upper frame (1). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
도 5를 참조하여 캐스터가 다시 고정모드로 전환되는 과정에 대해 설명하면, 회전모드 상태에서 사용자가 캐스터가 장착된 카트 등을 전진시키게 되면 상기 하부프레임(2)은 상기 휠(3)이 전진하는 방향에 일직선으로 놓일 수 있도록 회전하게 되고 이때 상기 고정핀(5)의 고정용돌기(51)가 상기 상부프레임(1)의 고정홈(11)과 일치하는 위치에 오게 되면, 상기 고정핀결합부스프링(22)의 탄성력(또는 상기 힌지(h1)에 형성된 복원스프링(7)의 탄성력)에 의해 상기 고정핀결합부(62)의 돌출부(622)가 밀리면서 상기 고정핀결합부(62) 역시 (ii)방향으로 이동하게 되고, 그에따라 힌지(h2)로 연결된 상기 고정핀(5)의 일단도 같은 방향으로 회전하게 되면서 힌지(h1)을 중심으로 하여 상기 고정용돌기(51)는 시계방향(ⓑ방향)으로 회전하여 상기 고정홈(11)에 삽입되게 된다. 상기 고정핀결합부(62)가 (ii)방향으로 이동함에 따라 힌지(h3)에 의해 연결된 상기 회전부결합부(63) 역시 같은 방향으로 이동하게 되고, 상기 회전부(4)와 휠(3)은 모두 반시계방향(②방향)으로 회전하면서 캐스터는 고정모드로 고정되어 전진하게 된다. Referring to FIG. 5, the process of converting the caster back to the fixed mode will be described. When the user moves the cart on which the caster is mounted in the rotation mode, the lower frame 2 moves forward of the wheel 3. It is rotated so that it can be placed in a straight line and the fixing projections 51 of the fixing pin (5) is in the position coinciding with the fixing groove 11 of the upper frame (1), the fixing pin coupling portion As the protrusion 622 of the fixing pin coupling portion 62 is pushed by the elastic force of the spring 22 (or the elastic force of the restoring spring 7 formed at the hinge h1), the fixing pin coupling portion 62 is also pushed. (ii) is moved in the direction, and accordingly the one end of the fixing pin (5) connected by the hinge (h2) rotates in the same direction while the fixing projection (51) around the hinge (h1) is clockwise Rotate in the (ⓑ direction) to be inserted into the fixing groove (11). As the fixing pin coupling part 62 moves in the (ii) direction, the rotating part coupling part 63 connected by the hinge h3 also moves in the same direction, and the rotating part 4 and the wheel 3 are Both of them rotate counterclockwise (② direction), and the caster is fixed in the fixed mode and advanced.
도 6은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도이고, 도 7은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도이다. Figure 6 is a cross-sectional view of the state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse, Figure 7 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
도 6 내지 7을 참조하면, 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터는 고정된 상부프레임(1)과, 상기 상부프레임(1)에 회전가능하게 결합하는 하부프레임(2)과, 상기 하부프레임(2)에 결합하여 회전하는 휠(3)을 포함하는 캐스터에 있어서, 상기 휠(3)에 결합하여 휠과 함께 회전하는 회전부(4); 상기 하부프레임(2)에 연결되고 하기 고정핀이동수단(6)과 연동되어 상기 상부프레임(1)에 결속되거나 결속이 해제되는 고정핀(5); 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 고정핀이동수단(6);을 포함하며, 상기 회전부(4)는 돌출된 돌기(41)를 포함하며, 상기 상부프레임(1)은 고정모드에서 상기 고정핀(5)이 결속될 수 있도록 함입된 고정홈(11)을 포함하며, 상기 고정핀(5)은 상기 상부프레임(1)의 고정홈(11)에 결속될 수 있는 고정용돌기(51); 상기 고정핀이동수단(6)과 결합할 수 있도록 돌출된 이동수단용돌출부(52);를 포함하고, 상기 하부프레임(2)의 내부에서 이동하며, 상기 고정핀이동수단(6)은 일단은 상기 고정핀(5)과 힌지결합하고, 타단은 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)를 포함하며, 상기 하부프레임(2)은 상기 고정핀(5)이 삽입되어 이동할 수 있는 고정핀삽입공(23)을 포함하는 것을 특징으로 한다. 상기 구성요소들 중 앞서 설명한 본 발명의 다른 실시예들의 구성요소와 동일한 구성요소에 대해서는 중복기재를 피하기 위해 설명을 생략하기로 하고, 이하에서는 차이점이 있는 구성요소에 대해서만 집중적으로 설명하기로 한다. 6 to 7, a caster capable of mode switching according to another embodiment of the present invention includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1; In the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4); A fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) includes a fixing groove (11) recessed so that the fixing pin (5) can be engaged in the fixing mode, the fixing pin (5) is fixed to the fixing groove (11) of the upper frame (1) Fixing protrusions 51 that can be; Protruding portion 52 for protruding means to be coupled to the fixed pin moving means (6), including moving in the lower frame (2), the fixed pin moving means (6) Hinge coupling with the fixing pin (5), the other end includes a projection catching portion 61 that can be caught on the projection 41 of the rotating part (4), the lower frame (2) is the fixing pin (5) It is characterized in that it comprises a fixed pin insertion hole 23 that can be inserted and moved. The same components as those of the other embodiments of the present invention described above will be omitted in order to avoid overlapping descriptions, and only constituent elements having different differences will be described below.
상기 고정핀(5)은 앞서의 실시예들과 마찬가지로 상기 하부프레임(2)에 연결되고 상기 고정핀이동수단(6)과 연동되어 상기 상부프레임(1)에 결속되거나 결속이 해제되는 부분으로, 후술하게 될 상기 하부프레임(2)의 고정핀삽입공(23) 내에서 이동하며, 일단에는 상기 상부프레임(1)의 고정홈(11)에 결속될 수 있는 고정용돌기(51)가 형성되고 타단에는 상기 고정핀이동수단(6)과 힌지(h2)결합할 수 있도록 돌출된 이동수단용돌출부(52)가 형성되어 상기 고정핀이동수단(6)의 이동에 따라 상기 고정용돌기(51)가 상기 고정홈(11)으로부터 이탈할 수 있게 되는데, 그에 대한 상세한 설명은 후술하도록 한다. 또한 상기 고정핀(5)의 일측에는 돌출되어 상기 고정핀삽입공(23) 내에서 이동하는 돌출부(53)가 형성될 수 있는데, 이는 후술하게 될 고정핀스프링(24)을 압박하거나 그 탄성력을 이용할 수 있게 되는 부분이다. The fixing pin 5 is a portion which is connected to the lower frame 2 and linked with the fixing pin moving means 6 to be bound or released from the upper frame 1, as in the previous embodiments, Moving in the fixing pin insertion hole 23 of the lower frame 2 to be described later, one end is formed with a fixing projection 51 that can be bound to the fixing groove 11 of the upper frame (1) The other end is formed with a protrusion 52 for protruding means to be coupled to the fixing pin moving means 6 and the hinge (h2), the fixing projections 51 in accordance with the movement of the fixing pin moving means (6) It can be separated from the fixing groove 11, a detailed description thereof will be described later. In addition, one side of the fixing pin 5 may be formed with a protrusion 53 that protrudes and moves within the fixing pin insertion hole 23, which presses or fixes the elastic pin spring 24 to be described later. That's where it becomes available.
상기 하부프레임(2)은 상기 고정핀(5)이 삽입되어 이동할 수 있는 고정핀삽입공(23)을 포함하는데, 상기 고정핀삽입공(23)의 하부에는 상기 이동수단용돌출부(52)가 관통하여 돌출될 수 있도록 관통공이 형성되고, 상부에는 상기 돌출부(53)와 고정핀스프링(24)이 위치하여 이동할 수 있는 공간이 형성될 수 있다. 상기 고정핀스프링(24)은 탄성력을 갖는 탄성부재(일 예로, 스프링)로 상기 돌출부(53)가 회전모드로 전환되는 과정에서 이동하는 방향으로 상기 돌출부(53)에 연하여 위치하는데, 캐스터가 회전모드로 전환되는 과정에서는 상기 돌출부(53)에 의해 압박되다가 캐스터가 고정모드로 전환되는 과정에서는 탄성력에 의해 상기 돌출부(53)를 이동시키게 된다. The lower frame 2 includes a fixing pin insertion hole 23 which can be moved by the fixing pin 5 is inserted, the lower portion of the fixing pin insertion hole 23 is a projection 52 for the movement means A through hole may be formed to protrude through, and a space in which the protrusion 53 and the fixing pin spring 24 may be positioned may move. The fixing pin spring 24 is an elastic member having an elastic force (for example, a spring) and is positioned in connection with the protrusion 53 in a moving direction in the process of the protrusion 53 being switched to the rotation mode. In the process of switching to the rotation mode is pressed by the protrusion 53, in the process of the caster is converted to the fixed mode to move the protrusion 53 by the elastic force.
이하에서는 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 회전모드로 전환하는 과정과 고정모드로 전환하는 과정에 대해 상세히 설명하도록 한다. Hereinafter, a process of switching a caster capable of mode switching according to another embodiment of the present invention to a rotation mode and a process of switching to a fixed mode will be described in detail.
도 6을 참조하여 캐스터가 회전모드로 전환하는 과정에 대해 설명하면, 먼저 사용자가 캐스터가 장착된 카트 등을 후진시키게 되면 상기 휠(3)이 후진하는 방향 즉, 시계방향(①방향)으로 회전하고 그에 따라 상기 회전부(4) 역시 시계방향(①방향)으로 회전하면서 상기 돌기(41)가 상기 고정핀이동수단(6)의 돌기걸림부(61)에 걸리면서 상기 고정핀이동수단(6)을 (i)방향으로 이동시키게 된다. 상기 고정핀이동수단(6)의 이동에 따라 상기 고정핀이동수단(6)와 힌지(h2)에 의해 연결된 상기 고정핀(5)의 이동수단용돌출부(52)도 같은 방향으로 이동하게 되므로 상기 고정핀(5) 전체가 이동하게 된다. 이때 상기 고정핀(5)의 돌출부(53)는 상기 고정핀스프링(24)을 압박하게 된다. 상기 고정핀(5)의 이동에 따라 상기 고정용돌기(51)는 ⓐ방향으로 이동하면서 상기 상부프레임(1)의 고정홈(11)에서 이탈하게 된다. 그에 따라 상기 하부프레임(2)은 자유롭게 방향을 회전할 수 있는 회전모드로 전환하게 된다. Referring to FIG. 6, a process of converting the caster to the rotation mode will be described. First, when the user reverses a cart on which the caster is mounted, the wheel 3 rotates backward, that is, clockwise (① direction). Accordingly, while the rotation part 4 also rotates clockwise (① direction), the protrusion 41 is caught by the protrusion catching part 61 of the fixing pin moving means 6 to move the fixing pin moving means 6. It moves in the (i) direction. As the fixing pin moving means 6 moves, the protrusion 52 for the moving means of the fixing pin 5 connected by the fixing pin moving means 6 and the hinge h2 also moves in the same direction. The entire fixing pin 5 is moved. At this time, the protrusion 53 of the fixing pin 5 is to press the fixing pin spring (24). As the fixing pin 5 moves, the fixing protrusion 51 moves away from the fixing groove 11 of the upper frame 1 while moving in the ⓐ direction. Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
도 7을 참조하여 캐스터가 다시 고정모드로 전환되는 과정에 대해 설명하면, 회전모드 상태에서 사용자가 캐스터가 장착된 카트 등을 전진시키게 되면 상기 하부프레임(2)은 상기 휠(3)이 전진하는 방향에 일직선으로 놓일 수 있도록 회전하게 되고 이때 상기 고정핀(5)의 고정용돌기(51)가 상기 상부프레임(1)의 고정홈(11)과 일치하는 위치에 오게 되면, 상기 고정핀스프링(24)의 탄성력에 의해 상기 고정핀(5)의 돌출부(53)가 밀리면서 상기 고정핀(5)과 고정용돌기(51)는 ⓑ방향으로 이동하게 되어 상기 고정용돌기(51)가 상기 고정홈(11)에 삽입되게 된다. 상기 고정핀(5)이 ⓑ방향으로 이동함에 따라 힌지(h2)에 의해 연결된 상기 고정핀이동수단(6) 역시 (ii)방향으로 이동하게 되고, 상기 회전부(4)와 휠(3)은 모두 반시계방향(②방향)으로 회전하면서 캐스터는 고정모드로 고정되어 전진하게 된다. Referring to FIG. 7, a process in which the caster is switched to the fixed mode again is described. When the user moves the cart on which the caster is mounted in the rotation mode, the lower frame 2 moves forward of the wheel 3. It is rotated so that it can be placed in a straight line in this case when the fixing projection 51 of the fixing pin 5 is in the position coinciding with the fixing groove 11 of the upper frame 1, the fixing pin spring ( As the protrusion 53 of the fixing pin 5 is pushed by the elastic force of the 24, the fixing pin 5 and the fixing protrusion 51 are moved in the ⓑ direction so that the fixing protrusion 51 is fixed. It is to be inserted into the groove (11). As the fixing pin 5 moves in the ⓑ direction, the fixing pin moving means 6 connected by the hinge h2 also moves in the (ii) direction, and the rotating part 4 and the wheel 3 are both While rotating counterclockwise (② direction), the caster is fixed in the fixed mode and advanced.
도 8은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도이고, 도 9는 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도이다. 8 is a cross-sectional view of a state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse, Figure 9 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
도 8 내지 9를 참조하면, 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터는 고정된 상부프레임(1)과, 상기 상부프레임(1)에 회전가능하게 결합하는 하부프레임(2)과, 상기 하부프레임(2)에 결합하여 회전하는 휠(3)을 포함하는 캐스터에 있어서, 상기 휠(3)에 결합하여 휠과 함께 회전하는 회전부(4); 상기 하부프레임(2)에 연결되고 하기 고정핀이동수단(6)과 연동되어 상기 상부프레임(1)에 결속되거나 결속이 해제되는 고정핀(5); 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 고정핀이동수단(6);을 포함하며, 상기 회전부(4)는 상기 고정핀이동수단(6)이 삽입 연결될 수 있는 이동수단삽입홈(42)을 포함하고, 상기 이동수단삽입홈(42)은 길이가 서로 다른 두 변으로 이루어지며, 상기 상부프레임(1)은 고정모드에서 상기 고정핀(5)이 결속될 수 있도록 함입된 고정홈(11)을 포함하며, 상기 고정핀(5)은 상기 하부프레임(2)에 힌지결합되고, 고정핀의 일단은 상기 상부프레임(1)의 고정홈(11)에 결속될 수 있는 고정용돌기(51)를 포함하고, 고정핀의 타단은 상기 회전부(4)이 후진하는 방향으로 회전하는 경우에만 상기 고정핀이동수단(6)에 걸릴 수 있는 이동수단걸림부(55)를 포함하며, 상기 고정핀이동수단(6)은 상기 이동수단삽입홈(42)의 형상보다 두 변 사이의 끼인각이 작은 형상으로 형성되고, 상기 이동수단삽입홈(42)을 통해 상기 회전부(4)에 힌지결합되어 상기 회전부(4)의 회전방향에 따라 회동할 수 있는 것을 특징으로 한다. 상기 구성요소들 중 앞서 설명한 본 발명의 다른 실시예들의 구성요소와 동일한 구성요소에 대해서는 중복기재를 피하기 위해 설명을 생략하기로 하고, 이하에서는 차이점이 있는 구성요소에 대해서만 집중적으로 설명하기로 한다. 8 to 9, the caster capable of mode switching according to another embodiment of the present invention includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1. In the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4); A fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) can be connected to the fixing pin moving means (6) It includes a vehicle insertion groove 42, the vehicle insertion groove 42 is made of two sides of different lengths, the upper frame (1) can be fixed to the fixing pin (5) in the fixed mode It includes a fixing groove 11, so that the fixing pin (5) is hinged to the lower frame (2), one end of the fixing pin is to be bound to the fixing groove (11) of the upper frame (1) It includes a fixing projection 51, the other end of the fixing pin is a locking means 55 that can be caught on the fixing pin moving means (6) only when the rotating part (4) rotates in the reverse direction It includes, the fixing pin moving means 6 is smaller than the angle between the two sides than the shape of the moving means insertion groove 42 Is formed of a phase, is hinged to the rotary part (4) via the moving means inserted into groove 42 is characterized in that it can be rotated according to the rotation direction of the rotary part (4). The same components as those of the other embodiments of the present invention described above will be omitted in order to avoid overlapping descriptions, and only constituent elements having different differences will be described below.
상기 회전부(4)는 상기 휠(3)과 함께 회전하는 부분으로 앞서 본 실시예들과 달리 상기 돌기(41)가 형성되는 대신에 상기 고정핀이동수단(6)이 삽입 연결될 수 있는 이동수단삽입홈(42)을 포함하는데, 상기 이동수단삽입홈(42)은 길이가 서로 다른 두 변(421,422)이 일정한 각(θ1)을 이루는 'v'자형 홈으로 형성될 수 있으며, 상기 이동수단삽입홈(42) 내로 후술하게 될 고정핀이동수단(6)이 연결되게 된다. The rotating part 4 is a part that rotates together with the wheel 3, and unlike the above-described embodiments, instead of the protrusion 41, a moving means inserting means into which the fixing pin moving means 6 can be inserted is connected. Including a groove 42, the moving means insertion groove 42 may be formed as a 'v' shaped grooves having two sides (421,422) of different lengths forming a constant angle (θ1), the moving means insertion groove The fixed pin moving means 6 to be described later into 42 is connected.
상기 고정핀(5)은 상기 하부프레임(2)에 힌지(h1)결합되며, 고정핀의 일단은 상기 상부프레임(1)의 고정홈(11)에 결속될 수 있는 고정용돌기(51)를 포함하고, 고정핀의 타단은 상기 회전부(4)가 후진하는 방향으로 회전하는 경우에만 상기 고정핀이동수단(6)에 걸릴 수 있는 이동수단걸림부(55)를 포함한다. 상기 이동수단걸림부(55)는 상기 회전부(4)와는 직접적으로 접촉되지 않을 정도의 길이로 형성되어 상기 회전부(4)가 전진방향(②방향)으로 회전하는 경우에는 상기 회전부(4)나 고정핀이동수단(6)과 접촉되지 않으나, 상기 회전부(4)가 후진방향(①방향)으로 회전시 상기 회전부(4)의 외주면보다 돌출되는 상기 고정핀이동수단(6)의 장변(6a)에는 접촉되어 (i)방향으로 회전하게 된다. The fixing pin 5 is hinged (h1) to the lower frame (2), one end of the fixing pin has a fixing protrusion 51 that can be bound to the fixing groove 11 of the upper frame (1) The other end of the fixing pin includes a moving means catching part 55 that can be caught by the fixing pin moving means 6 only when the rotating part 4 rotates in the backward direction. The moving means catching part 55 is formed to a length such that it does not directly contact the rotating part 4, and the rotating part 4 or the fixed part when the rotating part 4 rotates in the forward direction (② direction). The long side 6a of the fixing pin moving means 6 which is not in contact with the pin moving means 6 but protrudes from the outer circumferential surface of the rotating part 4 when the rotating part 4 rotates in the backward direction (① direction). Contact and rotate in the (i) direction.
상기 고정핀이동수단(6)은 상기 이동수단삽입홈(42)에 대응되는 형상으로, 길이가 서로 다른 두 변(6a,6b)의 길이는 상기 이동수단삽입홈(42)의 두 변(421,422)의 길이와 같고 다만 두 변(6a,6b) 사이의 끼인각(θ2)이 상기 이동수단삽입홈(42)의 두 변(421,422) 사이의 끼인각(θ1)보다 작은 형상으로 형성되어, 상기 이동수단삽입홈(42) 내에서 상기 회전부(4)에 힌지(h4)결합되어 상기 회전부(4)의 회전방향에 따라 회동할 수 있게 된다. 즉, 상기 회전부(4)가 전진하기 위해 시계반대방향(②방향)으로 회전하는 경우에는 상기 고정핀이동수단(6)은 장변(6a)이 상기 이동수단삽입홈(42)의 장변(421)에 맞닿은 상태에서 회전하므로 상기 고정핀이동수단(6)은 상기 고정핀(5)의 이동수단걸림부(55)에는 접촉하지 않게 되나, 상기 회전부(4)가 후진하기 위해 시계방향(①방향)으로 회전하는 경우에는 상기 고정핀이동수단(6)은 단변(6b)이 상기 이동수단삽입홈(42)의 단변(422)에 맞닿은 상태에서 회전하므로 상기 고정핀이동수단(6)의 장변(6a)의 말단은 상기 회전부(4) 보다 돌출되게 되어 상기 고정핀이동수단(6)의 장변(6a)은 상기 고정핀(5)의 이동수단걸림부(55)에 접촉하게 되어 상기 이동수단걸림부(55)를 (i)방향으로 회전시키게 된다. The fixing pin moving means 6 has a shape corresponding to the moving means insertion groove 42, and the lengths of two sides 6a and 6b having different lengths are two sides 421 and 422 of the moving means insertion groove 42. ) Is equal to the length of, but the included angle (θ2) between the two sides (6a, 6b) is formed in a shape smaller than the included angle (θ1) between the two sides (421,422) of the moving means insertion groove 42, the moving means The hinge h4 is coupled to the rotating part 4 in the insertion groove 42 to be rotated according to the rotation direction of the rotating part 4. That is, when the rotating part 4 rotates in the counterclockwise direction (② direction) to move forward, the fixed pin moving means 6 has a long side 6a of the long side 421 of the moving means insertion groove 42. The fixed pin moving means 6 is not in contact with the moving means catching portion 55 of the fixing pin 5 because it rotates in contact with the rotary pin 4, but clockwise (① direction) for the rotating part 4 to move backward. In the case of rotating to the fixed pin moving means 6 is a long side (6a) of the fixed pin moving means (6a) because the short side (6b) is rotated in contact with the short side (422) of the moving means insertion groove 42 The end of the) protrudes more than the rotating part 4 so that the long side 6a of the fixing pin moving means 6 comes into contact with the moving means catching part 55 of the fixing pin 5 so that the moving means catching part The 55 is rotated in the (i) direction.
이하에서는 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 회전모드로 전환하는 과정과 고정모드로 전환하는 과정에 대해 상세히 설명하도록 한다. Hereinafter, a process of switching a caster capable of mode switching according to another embodiment of the present invention to a rotation mode and a process of switching to a fixed mode will be described in detail.
도 8을 참조하여 캐스터가 회전모드로 전환하는 과정에 대해 설명하면, 먼저 사용자가 캐스터가 장착된 카트 등을 후진시키게 되면 상기 휠(3)이 후진하는 방향 즉, 시계방향(①방향)으로 회전하고 그에 따라 상기 회전부(4) 역시 시계방향(①방향)으로 회전하면서 상기 고정핀이동수단(6)은 단변(6b)이 상기 이동수단삽입홈(42)의 단변(422)에 맞닿은 상태에서 시계방향(①방향)으로 회전하므로 상기 고정핀이동수단(6)의 장변(6a)의 말단은 상기 회전부(4) 보다 돌출되게 되면서 상기 고정핀(5)의 이동수단걸림부(55)에 접촉하게 되어 상기 이동수단걸림부(55)를 (i)방향으로 회전시키게 된다. 상기 이동수단걸림부(55)의 이동에 따라 상기 힌지(h1)를 중심으로 상기 고정핀(5)의 고정용돌기(51)는 ⓐ방향으로 이동하면서 상기 상부프레임(1)의 고정홈(11)에서 이탈하게 된다. 그에 따라 상기 하부프레임(2)은 자유롭게 방향을 회전할 수 있는 회전모드로 전환하게 된다. Referring to FIG. 8, a process in which the caster is switched to the rotation mode will be described. First, when the user reverses a cart on which the caster is mounted, the wheel 3 rotates backward, that is, clockwise (① direction). As a result, the rotating part 4 also rotates clockwise (① direction) while the fixing pin moving means 6 has a short side 6b in contact with a short side 422 of the moving means insertion groove 42. Direction (① direction), so that the end of the long side (6a) of the fixed pin moving means 6 is protruded more than the rotating part (4) to contact the moving means engaging portion 55 of the fixed pin (5) As a result, the moving means catching portion 55 is rotated in the (i) direction. As the moving means catching part 55 moves, the fixing protrusion 51 of the fixing pin 5 moves around the hinge h1 in the direction ⓐ and the fixing groove 11 of the upper frame 1 is moved. ). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
도 9를 참조하여 캐스터가 다시 고정모드로 전환되는 과정에 대해 설명하면, 회전모드 상태에서 사용자가 캐스터가 장착된 카트 등을 전진시키게 되면 상기 하부프레임(2)은 상기 휠(3)이 전진하는 방향에 일직선으로 놓일 수 있도록 회전하게 되고 이때 상기 고정핀(5)의 고정용돌기(51)가 상기 상부프레임(1)의 고정홈(11)과 일치하는 위치에 오게 되면, 상기 힌지(h1)에 형성된 복원스프링(7)의 탄성력에 의해 상기 고정핀(5)의 고정용돌기(51)는 ⓑ방향으로 이동하게 되어 상기 고정홈(11)에 삽입되게 된다. 상기 고정용돌기(51)가 ⓑ방향으로 이동함에 따라 상기 힌지(h1)를 중심으로 상기 이동수단걸림부(55)는 (ii)방향으로 회전하게 되고, 상기 고정핀이동수단(6), 회전부(4) 및 휠(3)은 모두 반시계방향(②방향)으로 회전하면서 캐스터는 고정모드로 고정되어 전진하게 된다. Referring to FIG. 9, a process in which the caster is converted to the fixed mode again is described. When the user moves the cart on which the caster is mounted in the rotation mode, the lower frame 2 moves forward of the wheel 3. It rotates so that it can be placed in a straight line and the fixing projections (51) of the fixing pin (5) when it comes to a position coinciding with the fixing groove (11) of the upper frame (1), the hinge (h1) The fixing protrusion 51 of the fixing pin 5 is moved in the ⓑ direction by the elastic force of the restoring spring 7 formed in the fixing groove 11 to be inserted into the fixing groove 11. As the fixing protrusion 51 moves in the ⓑ direction, the moving means catching part 55 rotates in the (ii) direction about the hinge h1, and the fixing pin moving means 6 and the rotating part. Both the 4 and the wheel 3 rotate in the counterclockwise direction (② direction), and the caster is fixed and moved forward in the fixed mode.
도 10은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도이고, 도 11은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도이다. 10 is a cross-sectional view of a state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse, Figure 11 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
도 10 내지 11을 참조하면, 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터는 고정된 상부프레임(1)과, 상기 상부프레임(1)에 회전가능하게 결합하는 하부프레임(2)과, 상기 하부프레임(2)에 결합하여 회전하는 휠(3)을 포함하는 캐스터에 있어서, 상기 휠(3)에 결합하여 휠과 함께 회전하는 회전부(4); 상기 상부프레임(1)에 연결되고 하기 고정핀이동수단(6)과 연동되어 상기 하부프레임(2)에 결속되거나 결속이 해제되는 고정핀(5); 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 고정핀이동수단(6);을 포함하며, 상기 회전부(4)는 돌출된 돌기(41)를 포함하며, 상기 상부프레임(1)은 상기 고정핀(5)이 삽입 연결될 수 있는 고정핀용홈(12)을 포함하며, 상기 하부프레임(2)은 상기 고정핀이동수단(6)이 삽입 연결될 수 있는 이동수단용홈(27)을 포함하며, 상기 고정핀(5)은 고정모드에서 상기 고정핀용홈(12)의 하부에 위치하는 상기 이동수단용홈(27)으로 하향이동하여 상기 하부프레임(2)에 결속되며, 상기 고정핀이동수단(6)은 회전부(4)이 후진방향으로 회전하는 경우 일단이 상기 회전부(4)의 돌기(41)에 걸려 이동하여 상기 고정핀(5)을 상향이동시켜 상기 하부프레임(2)과의 결속을 해제시키는 것을 특징으로 한다. 상기 구성요소들 중 앞서 설명한 본 발명의 다른 실시예들의 구성요소와 동일한 구성요소에 대해서는 중복기재를 피하기 위해 설명을 생략하기로 하고, 이하에서는 차이점이 있는 구성요소에 대해서만 집중적으로 설명하기로 한다. 10 to 11, a caster capable of mode switching according to another embodiment of the present invention includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1 and In the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4); A fixing pin (5) connected to the upper frame (1) and linked to or fixed to the lower pin (2) to be connected to the lower frame (2); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) comprises a fixing pin groove 12 which can be connected to the fixing pin (5), the lower frame (2) is a movement means groove (27) that can be connected to the fixing pin moving means (6) ), Wherein the fixing pin (5) is moved downward in the fixing means groove (27) located in the lower portion of the fixing pin groove (12) in the fixing mode and is bound to the lower frame (2), the fixing The pin moving means (6) when the rotating part 4 is rotated in the reverse direction, one end is caught by the protrusion 41 of the rotating part 4 to move the fixing pin (5) up to the lower frame (2) It is characterized by releasing the bond with. The same components as those of the other embodiments of the present invention described above will be omitted in order to avoid overlapping descriptions, and only constituent elements having different differences will be described below.
상기 상부프레임(1)은 상기 고정핀(5)이 삽입 연결될 수 있는 고정핀용홈(12)을 포함하는데, 상기 고정핀용홈(12)은 상기 상부프레임(1)의 하부에서 상향으로 함입되어 형성되어 그 내부에서 상기 고정핀(5)이 이동하게 된다. 상기 고정핀용홈(12)의 내부에는 고정핀스프링(13)이 포함되는데, 상기 고정핀스프링(13)은 앞서 고정핀스프링(24)과 같이 탄성력을 갖는 탄성부재(일 예로, 스프링)로 상기 고정핀(5)이 회전모드로 전환되는 과정에서 이동하는 방향으로 상기 고정핀(5)에 연하여 위치하여 캐스터가 회전모드로 전환되는 과정에서는 상기 고정핀(5)에 의해 압박되다가 캐스터가 고정모드로 전환되는 과정에서는 탄성력에 의해 상기 고정핀(5)을 이동시키게 된다. The upper frame 1 includes a fixing pin groove 12 into which the fixing pin 5 can be inserted, and the fixing pin groove 12 is recessed upwardly from the lower portion of the upper frame 1. The fixing pin 5 is moved therein. A fixing pin spring 13 is included in the fixing pin groove 12, and the fixing pin spring 13 is an elastic member (for example, a spring) having an elastic force as in the fixing pin spring 24. The fixing pin 5 is positioned in connection with the fixing pin 5 in the moving direction in the process of switching to the rotation mode, and is pressed by the fixing pin 5 in the process of changing the caster to the rotation mode, and the caster is fixed. In the process of switching to the mode is to move the fixing pin (5) by the elastic force.
상기 하부프레임(2)은 상기 고정핀이동수단(6)이 삽입 연결될 수 있는 이동수단용홈(27)을 포함하는데, 상기 이동수단용홈(27)은 상기 고정핀용홈(12)에 대응되는 위치에 형성되어 상기 고정핀용홈(12)의 고정핀(5)이 상기 이동수단용홈(27)으로도 이동하여 상기 하부프레임(2)을 고정시킬 수 있게 된다. 또한, 상기 이동수단용홈(27)에 삽입되어 이동하는 상기 고정핀이동수단(6)은 그 상부에서 상기 고정핀(5)의 하부와 맞닿게 되어 상기 고정핀(5)을 이동시킬 수 있게 된다. 상기 이동수단용홈(27)은 내주면에서 돌출된 돌출턱(271)이 형성되는데, 이는 상기 이동수단용홈(27)에 삽입된 상기 고정핀이동수단(6)이 이탈되지 않도록 하기 위한 것으로 상기 고정핀이동수단(6)에는 상기 돌출턱(271)에 대응되는 돌출부(6c)가 형성되어 상기 돌출턱(271)에 상기 돌출부(6c)가 걸림으로써 상기 고정핀이동수단(6)이 이탈되지 않게 된다. The lower frame 2 includes a moving means groove 27 to which the fixing pin moving means 6 can be inserted and connected, and the moving means groove 27 is located at a position corresponding to the fixing pin groove 12. Is formed so that the fixing pin (5) of the fixing pin groove 12 is also moved to the groove for the moving means 27 to fix the lower frame (2). In addition, the fixing pin moving means (6) inserted into the moving means groove (27) is in contact with the lower portion of the fixing pin (5) at the top to be able to move the fixing pin (5). . The moving means groove 27 is formed with a protruding jaw 271 protruding from the inner circumferential surface, which is to prevent the fixing pin moving means 6 inserted into the moving means groove 27 from being separated. The moving means 6 is provided with a protrusion 6c corresponding to the protruding jaw 271 so that the fixing pin moving means 6 is not detached by the protruding portion 6c being caught by the protruding jaw 271. .
상기 고정핀(5)은 상기 고정핀용홈(12)과 이동수단용홈(27)에 상응하는 형상으로 형성되어, 고정모드에서는 상기 고정핀스프링(13)의 탄성력에 의해 상기 고정핀용홈(12) 내에서 상기 이동수단용홈(27)으로 이동하여 상기 하부프레임(2)을 고정시키게 되고, 회전모드에서는 상기 고정핀이동수단(6)에 밀려 상기 고정핀용홈(12) 내로 이동하게 된다. The fixing pin 5 is formed in a shape corresponding to the fixing pin groove 12 and the moving means groove 27, in the fixing mode by the elastic force of the fixing pin spring 13 in the fixing pin groove 12 The lower frame (2) is fixed by moving to the moving means groove (27), and in the rotating mode, the fixed pin moving means (6) is pushed into the fixing pin groove (12).
상기 고정핀이동수단(6)은 상기 회전부(4)의 돌기(41)에 걸려 상기 이동수단용홈(27) 내를 이동하면서 상기 고정핀(5)을 이동시키는 부분으로, 상기 고정핀이동수단(6)의 일단은 상기 이동수단용홈(27) 내에 위치하고, 타단은 상기 회전부(4)가 후진하는 방향(시계방향, ①방향)으로 회전하는 경우 그 말단(6d)이 상기 돌기(41)에 걸려 상기 고정핀(5)을 상기 이동수단용홈(27) 외부로 이탈시킬 수 있을 정도의 길이로 형성된다. 이때, 상기 이동수단용홈(27) 내에 위치한 상기 고정핀이동수단(6)의 일단은 상기 돌출턱(271)에 대응되는 돌출부(6c)를 포함할 수 있는데, 상기 돌출부(6c)는 상기 돌출턱(271)에 걸림으로써 상기 고정핀이동수단(6)이 상기 이동수단용홈(27)으로부터 이탈되지 않도록 한다. 또한, 상기 고정핀이동수단(6)은 중간에 꺽임용절개부(6e)가 형성될 수 있는데, 상기 꺽임용절개부(6e)는 상기 고정핀이동수단(6)이 상기 회전부(4)의 전진방향(반시계방향, ②방향)의 회전시에 상기 돌기(41)에 간섭되어 상기 회전부(4)의 회전을 방해하는 것을 방지하기 위한 것으로, 상기 고정핀이동수단(6)의 중간을 절개하고 그 절개면의 상기 돌기(41)와 접촉하는 측의 타측에 '＞'형태의 홈이 형성되도록 한 후 절개된 상,하부를 힌지 결합함으로써 상기 회전부(4)가 전진방향으로 회전하면서 상기 꺽임용절개부(6e)의 하부의 고정핀이동수단(6)에 상기 돌기(41)가 접촉하는 경우 고정핀이동수단(6)은 상기 꺽임용절개부(6e)를 중심으로 꺽이게 되어 상기 회전부(4)의 회전을 방해하지 않게 된다. The fixing pin moving means (6) is a part for moving the fixing pin (5) while moving in the groove (27) for the moving means by the projection (41) of the rotating part (4), the fixing pin moving means ( One end of the 6) is located in the groove 27 for the moving means, and the other end thereof is caught by the protrusion 41 when the rotary part 4 rotates in the reverse direction (clockwise, ① direction). The fixing pin 5 is formed to a length enough to be separated to the outside of the groove 27 for the moving means. At this time, one end of the fixing pin moving means 6 located in the moving means groove 27 may include a protrusion 6c corresponding to the protrusion jaw 271, wherein the protrusion 6c is the protrusion jaw. The locking pin moving means 6 is prevented from being separated from the groove 27 for the moving means by being caught by the 271. In addition, the fixing pin moving means (6) may be formed in the middle of the bending incision (6e), the bending incision (6e) is the fixing pin moving means (6) of the rotating part (4) It is to prevent the interference of the rotation of the rotary part 4 by interfering with the projection 41 during the rotation of the forward direction (counterclockwise, ② direction), the middle of the fixing pin moving means (6) And the other side of the side in contact with the protrusion 41 of the incision surface is formed to form a '>' groove and then the hinged upper and lower sections are combined by the rotating portion (4) while rotating in the forward direction the bending When the protrusions 41 are in contact with the fixing pin moving means 6 at the lower portion of the melt cut portion 6e, the fixing pin moving means 6 is bent around the bending cutout 6e to rotate the rotating part. We do not disturb rotation of (4).
이하에서는 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 회전모드로 전환하는 과정과 고정모드로 전환하는 과정에 대해 상세히 설명하도록 한다. Hereinafter, a process of switching a caster capable of mode switching according to another embodiment of the present invention to a rotation mode and a process of switching to a fixed mode will be described in detail.
도 10을 참조하여 캐스터가 회전모드로 전환하는 과정에 대해 설명하면, 먼저 사용자가 캐스터가 장착된 카트 등을 후진시키게 되면 상기 휠(3)이 후진하는 방향 즉, 시계방향(①방향)으로 회전하고 그에 따라 상기 회전부(4) 역시 시계방향(①방향)으로 회전하면서 상기 돌기(41)가 상기 고정핀이동수단(6)의 말단(6d)에 걸리면서 상기 고정핀이동수단(6)을 (i)방향으로 이동시키게 된다. 상기 고정핀이동수단(6)의 이동에 따라 상기 고정핀이동수단(6)과 맞닿아 있는 상기 고정핀(5)도 ⓐ방향으로 이동하게 되어 상기 고정핀(5)은 상기 이동수단용홈(27)으로부터 이탈될 수 있게 된다. 이때 상기 고정핀(5)은 상기 고정핀스프링(13)을 압박하게 된다. 상기 고정핀(5)이 상기 이동수단용홈(27)으로부터 이탈됨에 따라 상기 하부프레임(2)은 자유롭게 방향을 회전할 수 있는 회전모드로 전환하게 된다. Referring to FIG. 10, a process in which the caster is switched to the rotation mode is described. First, when the user reverses a cart on which the caster is mounted, the wheel 3 rotates backward, that is, clockwise (① direction). Accordingly, while the rotation part 4 also rotates in the clockwise direction (① direction), the protrusion 41 is caught by the end 6d of the fixing pin moving means 6. In the direction of). As the fixing pin moving means 6 moves, the fixing pin 5, which is in contact with the fixing pin moving means 6, is also moved in the direction ⓐ so that the fixing pin 5 is the groove for the moving means 27. ) Can be separated from. At this time, the fixing pin 5 is pressed against the fixing pin spring (13). As the fixing pin 5 is separated from the groove 27 for the moving means, the lower frame 2 is switched to a rotation mode that can rotate freely.
도 11을 참조하여 캐스터가 다시 고정모드로 전환되는 과정에 대해 설명하면, 회전모드 상태에서 사용자가 캐스터가 장착된 카트 등을 전진시키게 되면 상기 하부프레임(2)은 상기 휠(3)이 전진하는 방향에 일직선으로 놓일 수 있도록 회전하게 되고 이때 상기 고정핀(5)이 상기 하부프레임(2)의 이동수단용홈(27)과 일치하는 위치에 오게 되면, 상기 고정핀스프링(13)의 탄성력에 의해 상기 고정핀(5)이 밀리면서 상기 고정핀(5)은 ⓑ방향으로 이동하여 상기 이동수단용홈(27) 내부로 삽입되게 된다. 상기 고정핀(5)이 상기 이동수단용홈(27) 내부로 삽입됨에 따라 상기 고정핀(5)과 맞닿게 되는 상기 고정핀이동수단(6) 역시 (ii)방향으로 이동하게 되고, 상기 회전부(4)와 휠(3)은 모두 반시계방향(②방향)으로 회전하면서 캐스터는 고정모드로 고정되어 전진하게 된다. 이때 반시계방향(②방향)으로 회전하는 상기 회전부(4)의 돌기(41)에 간섭되지 않도록 상기 고정핀이동수단(6)은 앞서 설명한 바와 같이 상기 꺽임용절개부(6e)를 중심으로 꺽이게 되어 상기 회전부(4)의 회전을 방해하지 않게 된다. Referring to FIG. 11, a process in which the caster is switched to the fixed mode again is described. When the user advances a cart on which the caster is mounted in the rotation mode, the lower frame 2 moves forward of the wheel 3. It is rotated so that it can be placed in a straight line in this case when the fixing pin 5 is in a position coinciding with the groove 27 for the moving means of the lower frame (2), by the elastic force of the fixing pin spring (13) As the fixing pin 5 is pushed, the fixing pin 5 moves in the ⓑ direction to be inserted into the groove 27 for the moving means. As the fixing pin 5 is inserted into the groove 27 for the moving means, the fixing pin moving means 6 which is in contact with the fixing pin 5 also moves in the (ii) direction, and the rotating part ( 4) and the wheel 3 are both rotated counterclockwise (② direction), the caster is fixed in the fixed mode to move forward. At this time, the fixing pin moving means 6 is bent around the bending cutout 6e as described above so as not to interfere with the protrusion 41 of the rotating part 4 rotating counterclockwise (② direction). This does not interfere with the rotation of the rotating part (4).
도 12는 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 후진하면서 회전모드로 전환되는 상태의 단면도이고, 도 13은 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 전진하면서 고정모드로 전환되는 상태의 단면도이다. 12 is a cross-sectional view of a state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse, Figure 13 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
도 12 내지 13을 참조하면, 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터는 고정된 상부프레임(1)과, 상기 상부프레임(1)에 회전가능하게 결합하는 하부프레임(2)과, 상기 하부프레임(2)에 결합하여 회전하는 휠(3)을 포함하는 캐스터에 있어서, 상기 휠(3)에 결합하여 휠과 함께 회전하는 회전부(4); 상기 상부프레임(1)에 연결되고 하기 고정핀이동수단(6)과 연동되어 상기 하부프레임(2)에 결속되거나 결속이 해제되는 고정핀(5); 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 고정핀이동수단(6);을 포함하며, 상기 회전부(4)는 돌출된 돌기(41)를 포함하며, 상기 고정핀(5)은 일단이 상기 상부프레임(1)에 힌지결합되고, 타단은 하부프레임(2)의 하기 고정핀이동부삽입공(25)에 결속될 수 있는 고정용돌기(51)를 포함하며, 상기 고정핀이동수단(6)은 상기 하부프레임(2)의 내부에서 이동하며 상기 고정핀(5)을 이동시키는 고정핀이동부(64); 상기 고정핀이동부(64)의 돌출된 일단에 힌지결합되고 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)가 형성된 회전부결합부(63);를 포함하며, 상기 하부프레임(2)은 상기 고정핀이동부(64)가 삽입되어 이동할 수 있는 고정핀이동부삽입공(25)을 포함하는 것을 특징으로 한다. 상기 구성요소들 중 앞서 설명한 본 발명의 다른 실시예들의 구성요소와 동일한 구성요소에 대해서는 중복기재를 피하기 위해 설명을 생략하기로 하고, 이하에서는 차이점이 있는 구성요소에 대해서만 집중적으로 설명하기로 한다. 12 to 13, a caster capable of mode switching according to another embodiment of the present invention includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1. In the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4); A fixing pin (5) connected to the upper frame (1) and linked to or fixed to the lower pin (2) to be connected to the lower frame (2); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the fixing pin (5) is one end is hinged to the upper frame (1), the other end includes a fixing protrusion 51 that can be bound to the following fixing pin moving part insertion hole 25 of the lower frame (2), The fixed pin moving means (6) is a fixed pin moving part 64 to move in the lower frame (2) and to move the fixed pin (5); Rotating portion coupling portion 63 is hinged to the protruding end of the fixed pin moving portion 64 and the projection engaging portion 61 is formed to be caught on the projection 41 of the rotating portion 4; The lower frame 2 is characterized in that it comprises a fixing pin moving part insertion hole 25 which can be moved by the fixed pin moving part 64. The same components as those of the other embodiments of the present invention described above will be omitted in order to avoid overlapping descriptions, and only constituent elements having different differences will be described below.
상기 고정핀(5)은 앞서의 실시예들과 달리 일단이 상기 상부프레임(1)에 힌지(h1)결합되고, 타단은 하부프레임(2)의 하기 고정핀이동부삽입공(25)에 결속될 수 있는 고정용돌기(51)를 포함하는데, 그로 인해 상기 고정핀(5)은 상기 고정핀이동부삽입공(25) 내에서 이동하는 상기 고정핀이동수단(6)의 고정핀이동부(64)의 움직임에 연동하여 상기 하부프레임(2)에 결속되거나 결속이 해제됨으로써, 하부프레임(2)이 고정되는 상태의 고정모드나 하부프레임(2)이 회전할 수 있는 상태의 회전모드로 전환될 수 있도록 하며 그 작동원리는 후술하도록 한다. Unlike the previous embodiments, the fixing pin 5 has one end coupled to the upper frame 1 by a hinge h1, and the other end is bound to the following fixing pin moving part insertion hole 25 of the lower frame 2. It includes a fixing protrusion 51 which can be, whereby the fixing pin 5 is fixed pin moving part (6) of the fixing pin moving means (6) moving in the fixing pin moving part insertion hole (25) In connection with the movement of 64, the lower frame 2 is bound or released, thereby switching to a fixed mode in which the lower frame 2 is fixed or a rotating mode in which the lower frame 2 can be rotated. The operation principle will be described later.
상기 고정핀이동수단(6)은 앞서의 실시예들과 마찬가지로 상기 회전부(4)의 회전을 이용하여 상기 고정핀(5)을 이동시키는 부분으로, 상기 하부프레임(2)의 고정핀이동부삽입공(25) 내부에서 이동하며 상기 고정핀(5)의 고정용돌기(51)와 맞닿게 되는 고정핀이동부(64); 상기 고정핀이동부(64)의 돌출된 일단(641)에 힌지(h3)결합되고 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)가 형성된 회전부결합부(63);를 포함하여 형성된다. 상기 고정핀이동부(64)는 후술하게 될 상기 고정핀이동부삽입공(25) 내에서 안정적으로 이동하면서 상기 고정핀이동부삽입공(25)에 결속되는 상기 고정핀(5)의 고정용돌기(51)를 이동시키는 부분으로, 상기 고정핀이동부(64)의 일측에는 돌출부(642)가 형성되어 후술하게 될 고정핀이동부스프링(26)을 압박하거나 그 탄성력을 이용할 수 있게 되며, 타측에는 돌출된 일단(641)이 형성되어 힌지(h3)에 의해 상기 회전부결합부(63)와 연결됨으로써 상기 고정핀이동부(64)와 회전부결합부(63)가 함께 연동하게 된다. 상기 회전부결합부(63)는 그 일단에서 상기 고정핀이동부(64)와 힌지(h3)결합되어 있으면서 그 타단에는 상기 회전부(4)의 돌기(41)에 걸릴 수 있는 돌기걸림부(61)가 형성되어 상기 회전부(4)의 회전에 연동하여 움직이면서 상기 고정핀이동부(64)를 함께 이동시킬 수 있게 된다. 상기 고정핀이동수단(6)의 상세한 작동원리는 후술하도록 한다. The fixing pin moving means 6 is a portion for moving the fixing pin 5 by using the rotation of the rotating part 4 as in the previous embodiments, and the fixing pin moving part of the lower frame 2 is inserted. A moving pin 64 moving in the ball 25 and coming into contact with the fixing protrusion 51 of the fixing pin 5; Hinge (h3) is coupled to the protruding end 641 of the fixed pin moving part 64 and the rotating portion engaging portion 63 is formed with a projection engaging portion 61 that can be caught on the projection 41 of the rotating part (4) It is formed to include. The fixing pin moving part 64 is fixed to the fixing pin 5 which is fixed to the fixing pin moving part insertion hole 25 while stably moving in the fixing pin moving part insertion hole 25 which will be described later. As a part for moving the protrusions 51, a protrusion 642 is formed at one side of the fixing pin moving part 64 to press the fixing pin moving part spring 26 to be described later, or to use the elastic force. One end 641 protruding from the other side is connected to the rotary coupling unit 63 by a hinge h3 so that the fixed pin moving unit 64 and the rotary coupling unit 63 interlock together. The rotatable portion engaging portion 63 is coupled to the fixing pin moving portion 64 and the hinge (h3) at one end thereof, the other end of the projection engaging portion 61 that can be caught on the projection 41 of the rotating portion 4 Is formed to move in conjunction with the rotation of the rotary unit 4 can move the fixing pin moving unit 64 together. Detailed operation principle of the fixing pin moving means 6 will be described later.
상기 하부프레임(2)은 상기 고정핀이동부(64)가 삽입되어 이동할 수 있는 고정핀이동부삽입공(25)을 포함하는데, 상기 고정핀이동부삽입공(25)의 하부에는 상기 고정핀이동부(64)의 돌출된 일단(641)이 관통하여 돌출될 수 있도록 관통공이 형성되고, 상부에는 상기 고정핀이동부(64)의 돌출부(642)와 고정핀이동부스프링(26)이 위치하여 이동할 수 있는 공간이 형성될 수 있다. 상기 고정핀이동부스프링(26)은 탄성력을 갖는 탄성부재(일 예로, 스프링)로 상기 고정핀이동부(64)의 돌출부(642)가 회전모드로 전환되는 과정에서 이동하는 방향으로 상기 돌출부(642)에 연하여 위치하는데, 캐스터가 회전모드로 전환되는 과정에서는 상기 돌출부(642)에 의해 압박되다가 캐스터가 고정모드로 전환되는 과정에서는 탄성력에 의해 상기 돌출부(642)를 이동시키게 된다. The lower frame 2 includes a fixing pin moving part insertion hole 25 through which the fixing pin moving part 64 is inserted and moved. The fixing pin is located below the fixing pin moving part insertion hole 25. A through hole is formed so that the protruding end 641 of the moving part 64 can protrude through, and the protrusion 642 and the fixing pin moving part spring 26 of the fixing pin moving part 64 are positioned on the upper part thereof. The movable space can be formed. The fixing pin moving part spring 26 is an elastic member having an elastic force (for example, a spring) and the protrusion part in a direction in which the protrusion 642 of the fixing pin moving part 64 moves in the process of being converted to the rotation mode. 642), the caster is pressed by the protrusion 642 when the caster is switched to the rotation mode, and the protrusion 642 is moved by the elastic force when the caster is switched to the fixed mode.
이하에서는 본 발명의 또 다른 실시예에 따른 모드전환이 가능한 캐스터가 회전모드로 전환하는 과정과 고정모드로 전환하는 과정에 대해 상세히 설명하도록 한다. Hereinafter, a process of switching a caster capable of mode switching according to another embodiment of the present invention to a rotation mode and a process of switching to a fixed mode will be described in detail.
도 12를 참조하여 캐스터가 회전모드로 전환하는 과정에 대해 설명하면, 먼저 사용자가 캐스터가 장착된 카트 등을 후진시키게 되면 상기 휠(3)이 후진하는 방향 즉, 시계방향(①방향)으로 회전하고 그에 따라 상기 회전부(4) 역시 시계방향(①방향)으로 회전하면서 상기 돌기(41)가 상기 회전부결합부(63)의 돌기걸림부(61)에 걸리면서 상기 회전부결합부(63)를 (i)방향으로 이동시키게 된다. 상기 회전부결합부(63)의 이동에 따라 상기 회전부결합부(63)와 힌지(h3)에 의해 연결된 상기 고정핀이동부(64)도 상기 고정핀이동부삽입공(25) 내에서 같은 방향으로 이동하게 되고 이때 상기 고정핀이동부(64)의 돌출부(642)는 상기 고정핀이동부스프링(26)을 압박하게 된다. 상기 고정핀이동부(64)가 (i)방향으로 이동함에 따라 상기 고정핀이동부삽입공(25) 내에 결속된 상기 고정핀(5)의 고정용돌기(51)를 밀게 되고, 그에 따라 상기 힌지(h1)을 중심으로 상기 고정핀(5)의 고정용돌기(51)는 반시계방향(ⓐ방향)으로 회전하면서 상기 하부프레임(2)의 고정핀이동부삽입공(25)에서 이탈하게 된다. 그에 따라 상기 하부프레임(2)은 자유롭게 방향을 회전할 수 있는 회전모드로 전환하게 된다. Referring to FIG. 12, a process in which the caster is switched to the rotation mode will be described. First, when the user reverses a cart on which the caster is mounted, the wheel 3 rotates backward, that is, clockwise (① direction). Accordingly, while the rotation part 4 also rotates in the clockwise direction (① direction), the projection 41 is caught by the projection catching part 61 of the rotation part coupling part 63 and thus the rotation part coupling part 63 (i In the direction of). According to the movement of the rotary coupling portion 63, the fixed pin moving portion 64 connected by the rotary coupling portion 63 and the hinge (h3) also in the same direction in the fixed pin moving portion insertion hole (25) In this case, the protrusion 642 of the fixing pin moving part 64 presses the fixing pin moving part spring 26. As the fixing pin moving part 64 moves in the (i) direction, the fixing pin 51 of the fixing pin 5 bound in the fixing pin moving part insertion hole 25 is pushed, and thus The fixing protrusion 51 of the fixing pin 5 around the hinge h1 is rotated in a counterclockwise direction (ⓐ direction) so as to be separated from the fixing pin moving part insertion hole 25 of the lower frame 2. do. Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
도 13을 참조하여 캐스터가 다시 고정모드로 전환되는 과정에 대해 설명하면, 회전모드 상태에서 사용자가 캐스터가 장착된 카트 등을 전진시키게 되면 상기 하부프레임(2)은 상기 휠(3)이 전진하는 방향에 일직선으로 놓일 수 있도록 회전하게 되고 이때 상기 고정핀(5)의 고정용돌기(51)가 상기 하부프레임(2)의 고정핀이동부삽입공(25)과 일치하는 위치에 오게 되면, 상기 힌지(h1)에 형성된 복원스프링(7)의 탄성력에 의해 시계방향(ⓑ방향)으로 회전하면서 상기 고정핀이동부삽입공(25) 내로 결속하게 된다. 상기 고정핀이동부(64)는 상기 고정핀이동부삽입공(25) 내로 삽입되는 상기 고정용돌기(51)에 의해 밀리게 됨은 물론, 상기 고정핀이동부(64)의 돌출부(642)가 상기 고정핀이동부스프링(26)의 탄성력에 의해서도 밀리면서 상기 고정핀이동부삽입공(25) 내에서 (ii)방향으로 이동하게 되고, 그에 따라 힌지(h3)로 연결된 상기 회전부결합부(63) 역시 같은 방향((ii)방향)으로 이동하게 되고, 상기 회전부(4)와 휠(3)은 모두 직진방향(반시계방향, ②방향)으로 회전하면서 캐스터는 고정모드로 고정되어 전진하게 된다. Referring to FIG. 13, the process of switching the caster back to the fixed mode will be described. When the user moves the cart on which the caster is mounted in the rotating mode, the lower frame 2 moves forward of the wheel 3. Rotate so that it can be placed in a straight line in the direction when the fixing projection 51 of the fixing pin 5 is in the position coinciding with the fixing pin moving part insertion hole 25 of the lower frame (2), By the elastic force of the restoring spring (7) formed in the hinge (h1) is bound in the fixing pin moving part insertion hole 25 while rotating in the clockwise direction (ⓑ). The fixing pin moving part 64 is pushed by the fixing protrusion 51 inserted into the fixing pin moving part insertion hole 25, as well as the protrusion 642 of the fixing pin moving part 64. While being pushed by the elastic force of the fixing pin moving part spring 26, the fixing pin moving part insertion hole 25 is moved in the (ii) direction, and thus the rotating part coupling part 63 connected by the hinge h3. ) Is also moved in the same direction ((ii) direction), while both the rotating part 4 and the wheel 3 is rotated in a straight direction (counterclockwise, ② direction), the caster is fixed in the fixed mode to move forward .
이상에서, 출원인은 본 발명의 바람직한 실시예들을 설명하였지만, 이와 같은 실시예들은 본 발명의 기술적 사상을 구현하는 일 실시예일 뿐이며 본 발명의 기술적 사상을 구현하는 한 어떠한 변경예 또는 수정예도 본 발명의 범위에 속하는 것으로 해석되어야 한다. In the above, the Applicant has described preferred embodiments of the present invention, but these embodiments are merely one embodiment for implementing the technical idea of the present invention, and any changes or modifications may be made as long as the technical idea of the present invention is implemented. Should be interpreted as being within the scope.

Claims (16)

  1. 고정된 상부프레임과, 상기 상부프레임에 회전가능하게 결합하는 하부프레임과, 상기 하부프레임에 결합하여 회전하는 휠을 포함하는 캐스터에 있어서, In the caster comprising a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel to rotate in combination with the lower frame,
    상기 휠에 결합하여 휠과 함께 회전하는 회전부; A rotating part coupled to the wheel to rotate together with the wheel;
    상기 하부프레임에 연결되고 하기 고정핀이동수단과 연동되어 상기 상부프레임에 결속되거나 결속이 해제되는 고정핀; A fixing pin connected to the lower frame and interlocked with the fixing pin moving means to be bound or released from the upper frame;
    상기 회전부의 회전을 이용하여 상기 고정핀을 이동시키는 고정핀이동수단;을 포함함으로써, By including a fixing pin moving means for moving the fixing pin by using the rotation of the rotating unit,
    하부프레임이 고정된 상태의 고정모드나 하부프레임이 회전할 수 있는 상태의 회전모드로 용이하게 모드전환할 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. Caster capable of mode switching, characterized in that the mode can be easily switched to a fixed mode of the lower frame fixed state or a rotating mode in which the lower frame can rotate.
  2. 제 1 항에 있어서, The method of claim 1,
    상기 회전부는 돌출된 돌기를 포함하며, The rotating part includes a protruding protrusion,
    상기 상부프레임은 고정모드에서 상기 고정핀이 결속될 수 있도록 함입된 고정홈을 포함하며, The upper frame includes a fixing groove which is embedded so that the fixing pin can be engaged in the fixing mode,
    상기 고정핀은 상기 하부프레임에 힌지결합되고, 고정핀의 일단은 상기 상부프레임의 고정홈에 결속될 수 있는 고정용돌기를 포함하고, 고정핀의 타단은 상기 고정핀이동수단에 힌지결합되며, The fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing protrusion that can be bound to the fixing groove of the upper frame, the other end of the fixing pin is hinged to the fixing pin moving means,
    상기 고정핀이동수단은 일단은 상기 고정핀과 힌지결합하고, 타단은 상기 회전부의 돌기에 걸릴 수 있는 돌기걸림부를 포함하는 것을 특징으로 하는 모드전환이 가능한 캐스터. The fixed pin moving means is one end hinged to the fixing pin, the other end is castable mode, characterized in that it comprises a projection engaging portion that can be caught in the projection of the rotating part.
  3. 제 1 항에 있어서, The method of claim 1,
    상기 회전부는 돌출된 돌기를 포함하며, The rotating part includes a protruding protrusion,
    상기 상부프레임은 고정모드에서 상기 고정핀이 결속될 수 있도록 함입된 고정홈을 포함하며, The upper frame includes a fixing groove which is embedded so that the fixing pin can be engaged in the fixing mode,
    상기 고정핀은 상기 하부프레임에 힌지결합되고, 고정핀의 일단은 상기 상부프레임의 고정홈에 결속될 수 있는 고정용돌기를 포함하고, 고정핀의 타단은 상기 고정핀이동수단에 힌지결합되며, The fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing protrusion that can be bound to the fixing groove of the upper frame, the other end of the fixing pin is hinged to the fixing pin moving means,
    상기 고정핀이동수단은 상기 고정핀과 힌지결합되고 상기 하부프레임의 내부에서 이동하는 고정핀결합부; 상기 고정핀결합부의 돌출된 일단에 힌지결합되고 상기 회전부의 돌기에 걸릴 수 있는 돌기걸림부가 형성된 회전부결합부;를 포함하며, The fixing pin moving means is a fixed pin coupling portion hinged to the fixing pin and moving inside the lower frame; And a rotatable portion engaging portion hinged to the protruding end of the fixed pin coupling portion and formed with a protrusion catching portion capable of catching the protrusion of the rotating portion.
    상기 하부프레임은 상기 고정핀결합부가 삽입되어 이동할 수 있는 고정핀결합부삽입공을 포함하는 것을 특징으로 하는 모드전환이 가능한 캐스터. The lower frame is caster capable of mode switching, characterized in that it comprises a fixing pin coupling part insertion hole which can be moved by the fixed pin coupling.
  4. 제 3 항에 있어서, The method of claim 3, wherein
    상기 고정핀결합부는 일측에 돌출부를 포함하고, The fixing pin coupling portion includes a protrusion on one side,
    상기 하부프레임은 상기 고정핀결합부삽입공 내에서 상기 돌출부가 회전모드로 전환되는 과정에서 이동하는 방향에 위치하는 고정핀결합부스프링을 포함함으로써, The lower frame includes a fixing pin coupling part spring which is located in the moving direction in the process of switching the projection into the rotation mode in the fixing pin coupling part insertion hole,
    상기 고정핀결합부스프링의 탄성력에 의해 상기 고정핀이 고정모드로 용이하게 전환될 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. Castable mode switch, characterized in that the fixing pin can be easily converted to the fixed mode by the elastic force of the fixing pin coupling portion spring.
  5. 제 1 항에 있어서, The method of claim 1,
    상기 회전부는 돌출된 돌기를 포함하며, The rotating part includes a protruding protrusion,
    상기 상부프레임은 고정모드에서 상기 고정핀이 결속될 수 있도록 함입된 고정홈을 포함하며, The upper frame includes a fixing groove which is embedded so that the fixing pin can be engaged in the fixing mode,
    상기 고정핀은 상기 상부프레임의 고정홈에 결속될 수 있는 고정용돌기; 상기 고정핀이동수단과 결합할 수 있도록 돌출된 이동수단용돌출부;를 포함하고, 상기 하부프레임의 내부에서 이동하며, The fixing pin is a fixing protrusion that can be bound to the fixing groove of the upper frame; And a protrusion for moving means protruding to be coupled to the fixing pin moving means, and moving in the lower frame.
    상기 고정핀이동수단은 일단은 상기 이동수단돌출부와 힌지결합하고, 타단은 상기 회전부의 돌기에 걸릴 수 있는 돌기걸림부를 포함하며, The fixing pin moving means is one end hinged to the moving means projection, and the other end includes a projection engaging portion that can be caught in the projection of the rotating unit,
    상기 하부프레임은 상기 고정핀이 삽입되어 이동할 수 있는 고정핀삽입공을 포함하는 것을 특징으로 하는 모드전환이 가능한 캐스터. The lower frame is caster capable of mode switching, characterized in that it comprises a fixing pin insertion hole which can be moved by the fixing pin is inserted.
  6. 제 5 항에 있어서, The method of claim 5,
    상기 고정핀은 일측에 돌출부를 포함하고, The fixing pin includes a protrusion on one side,
    상기 하부프레임은 상기 고정핀삽입공 내에서 상기 돌출부가 회전모드로 전환되는 과정에서 이동하는 방향에 위치하는 고정핀스프링을 포함함으로써, The lower frame includes a fixing pin spring located in the moving direction in the process of the projection is converted to the rotation mode in the fixing pin insertion hole,
    상기 고정핀스프링의 탄성력에 의해 상기 고정핀이 고정모드로 용이하게 전환될 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. Castable mode changeable, characterized in that the fixing pin can be easily switched to the fixed mode by the elastic force of the fixing pin spring.
  7. 제 4 항 또는 제 6 항에 있어서, The method according to claim 4 or 6,
    상기 고정핀의 고정용돌기의 말단에는 보조휠이 포함되어, 하부프레임이 회전하는 회전모드에서 하부프레임이 용이하게 회전할 수 있도록 함은 물론 고정용돌기의 마찰에 의한 손상을 방지할 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. An auxiliary wheel is included at the end of the fixing protrusion of the fixing pin, so that the lower frame can easily rotate in the rotation mode in which the lower frame rotates, as well as to prevent damage caused by friction of the fixing protrusion. The caster which can change mode characterized by.
  8. 제 1 항에 있어서, The method of claim 1,
    상기 회전부는 상기 고정핀이동수단이 삽입 연결될 수 있는 이동수단삽입홈을 포함하고, 상기 이동수단삽입홈은 길이가 서로 다른 두 변으로 이루어지며, The rotating part includes a moving means insertion groove into which the fixing pin moving means can be inserted and connected, and the moving means insertion groove is formed of two sides having different lengths,
    상기 상부프레임은 고정모드에서 상기 고정핀이 결속될 수 있도록 함입된 고정홈을 포함하며, The upper frame includes a fixing groove which is embedded so that the fixing pin can be engaged in the fixing mode,
    상기 고정핀은 상기 하부프레임에 힌지결합되고, 고정핀의 일단은 상기 상부프레임의 고정홈에 결속될 수 있는 고정용돌기를 포함하고, 고정핀의 타단은 상기 회전부가 후진하는 방향으로 회전하는 경우에만 상기 고정핀이동수단에 걸릴 수 있는 이동수단걸림부를 포함하며, The fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing protrusion that can be bound to the fixing groove of the upper frame, the other end of the fixing pin is rotated in the direction in which the rotating part backward It includes only a moving means that can be caught on the fixing pin moving means,
    상기 고정핀이동수단은 상기 이동수단삽입홈의 형상보다 두 변 사이의 끼인각이 작은 형상으로 형성되고, 상기 이동수단삽입홈을 통해 상기 회전부에 힌지결합되어 상기 회전부의 회전방향에 따라 회동할 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. The fixing pin moving means is formed in a shape in which the included angle between the two sides smaller than the shape of the moving means insertion groove, is hinged to the rotating part through the moving means insertion groove can be rotated in accordance with the rotation direction of the rotating part Caster capable of mode switching, characterized in that.
  9. 고정된 상부프레임과, 상기 상부프레임에 회전가능하게 결합하는 하부프레임과, 상기 하부프레임에 결합하여 회전하는 휠을 포함하는 캐스터에 있어서, In the caster comprising a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel to rotate in combination with the lower frame,
    상기 휠에 결합하여 휠과 함께 회전하는 회전부; A rotating part coupled to the wheel to rotate together with the wheel;
    상기 상부프레임에 연결되고 하기 고정핀이동수단과 연동되어 상기 하부프레임에 결속되거나 결속이 해제되는 고정핀; A fixing pin connected to the upper frame and linked with the following fixing pin moving means to bind or release the binding to the lower frame;
    상기 회전부의 회전을 이용하여 상기 고정핀을 이동시키는 고정핀이동수단;을 포함함으로써, By including a fixing pin moving means for moving the fixing pin by using the rotation of the rotating unit,
    하부프레임이 고정된 상태의 고정모드나 하부프레임이 회전할 수 있는 상태의 회전모드로 용이하게 모드전환할 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. Caster capable of mode switching, characterized in that the mode can be easily switched to a fixed mode of the lower frame fixed state or a rotating mode in which the lower frame can rotate.
  10. 제 9 항에 있어서, The method of claim 9,
    상기 회전부는 돌출된 돌기를 포함하며, The rotating part includes a protruding protrusion,
    상기 상부프레임은 상기 고정핀이 삽입 연결될 수 있는 고정핀용홈을 포함하며, The upper frame includes a fixing pin groove that can be connected to the fixing pin,
    상기 하부프레임은 상기 고정핀이동수단이 삽입 연결될 수 있는 이동수단용홈을 포함하며, The lower frame includes a groove for moving means to which the fixing pin moving means can be inserted and connected.
    상기 고정핀은 고정모드에서 상기 고정핀용홈의 하부에 위치하는 상기 이동수단용홈으로 하향이동하여 상기 하부프레임에 결속되며, The fixing pin is moved downward in the groove for the moving means positioned in the lower portion of the fixing pin groove in the fixed mode is bound to the lower frame,
    상기 고정핀이동수단은 회전부가 후진방향으로 회전하는 경우 일단이 상기 회전부의 돌기에 걸려 이동하여 상기 고정핀을 상향이동시켜 상기 하부프레임과의 결속을 해제시키는 것을 특징으로 하는 모드전환이 가능한 캐스터. The fixed pin moving means is caster capable of mode switching, characterized in that when the rotating part rotates in the reverse direction, one end is caught by the projection of the rotating part to move the fixing pin upward to release the binding with the lower frame.
  11. 제 10 항에 있어서, The method of claim 10,
    상기 하부프레임은 상기 이동수단용홈 내에 상기 고정핀이동수단이 하향이탈되는 것을 방지하는 돌출턱을 포함하고, 상기 고정핀이동수단은 상기 돌출턱에 대응되는 돌출부를 포함하며, The lower frame includes a projection jaw for preventing the fixing pin moving means from being separated downward in the groove for the moving means, the fixing pin moving means includes a projection corresponding to the projection jaw,
    상기 상부프레임은 상기 고정핀용홈 내에서 상기 고정핀이 회전모드로 전환되는 과정에서 이동하는 방향에 위치하는 고정핀스프링을 포함하여 상기 고정핀스프링의 탄성력에 의해 상기 고정핀이 고정모드로 용이하게 전환될 수 있도록 하는 것을 특징으로 하는 모드전환이 가능한 캐스터. The upper frame includes a fixing pin spring located in the moving direction in the process of converting the fixing pin into the rotation mode in the fixing pin groove, the fixing pin is easily in the fixing mode by the elastic force of the fixing pin spring. Caster capable of mode switching, characterized in that to be switched.
  12. 제 11 항에 있어서, The method of claim 11,
    상기 고정핀의 말단에는 보조휠이 포함되어, 하부프레임이 회전하는 회전모드에서 하부프레임이 용이하게 회전할 수 있도록 함은 물론 고정핀의 마찰에 의한 손상을 방지할 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. An auxiliary wheel is included at the end of the fixing pin, so that the lower frame can be easily rotated in the rotation mode in which the lower frame rotates, as well as mode switching, which can prevent damage due to friction of the fixing pin. 2 casters available.
  13. 제 9 항에 있어서, The method of claim 9,
    상기 회전부는 돌출된 돌기를 포함하며, The rotating part includes a protruding protrusion,
    상기 고정핀은 일단이 상기 상부프레임에 힌지결합되고, 타단은 하부프레임의 하기 고정핀이동부삽입공에 결속될 수 있는 고정용돌기를 포함하며, The fixing pin is hinged to one end of the upper frame, the other end includes a fixing protrusion that can be bound to the following fixing pin moving part insertion hole of the lower frame,
    상기 고정핀이동수단은 상기 하부프레임의 내부에서 이동하며 상기 고정핀을 이동시키는 고정핀이동부; 상기 고정핀이동부의 돌출된 일단에 힌지결합되고 상기 회전부의 돌기에 걸릴 수 있는 돌기걸림부가 형성된 회전부결합부;를 포함하며, The fixing pin moving means is a fixed pin moving unit for moving the fixing pin while moving inside the lower frame; It includes; a hinge portion coupled to the protruding end of the fixed pin moving portion and the rotating portion engaging portion formed with a projection engaging portion that can be caught in the projection of the rotating portion,
    상기 하부프레임은 상기 고정핀이동부가 삽입되어 이동할 수 있는 고정핀이동부삽입공을 포함하는 것을 특징으로 하는 모드전환이 가능한 캐스터. The lower frame is caster capable of mode switching, characterized in that it comprises a fixing pin moving part insertion hole which can be moved by the fixed pin moving part is inserted.
  14. 제 13 항에 있어서, The method of claim 13,
    상기 고정핀이동부는 일측에 돌출부를 포함하고, The fixing pin moving part includes a protrusion on one side,
    상기 하부프레임은 상기 고정핀이동부삽입공 내에서 상기 돌출부가 회전모드로 전환되는 과정에서 이동하는 방향에 위치하는 고정핀이동부스프링을 포함함으로써, The lower frame includes a fixing pin moving part spring located in the moving direction in the process of the projection is converted to the rotation mode in the fixing pin moving part insertion hole,
    상기 고정핀이동부스프링의 탄성력에 의해 상기 고정핀이동부가 고정모드로 용이하게 전환될 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. Caster capable of mode switching, characterized in that the fixed pin moving portion can be easily converted to the fixed mode by the elastic force of the fixed pin moving portion spring.
  15. 제2항 또는 제8항 또는 제14항 중 어느 하나의 항에 있어서, The method according to any one of claims 2 or 8 or 14,
    상기 상부프레임 또는 하부프레임과 상기 고정핀이 결합된 힌지에는 탄성력에 의해 고정핀의 위치를 고정모드로 용이하게 복원시킬 수 있도록 하는 복원스프링이 형성되는 것을 특징으로 하는 모드전환이 가능한 캐스터. The hinge of the upper frame or the lower frame and the fixing pin is coupled to the caster, characterized in that the restoring spring is formed to easily restore the position of the fixing pin to the fixed mode by the elastic force.
  16. 제 15 항에 있어서, The method of claim 15,
    상기 고정핀의 고정용돌기의 말단에는 보조휠이 포함되어, 하부프레임이 회전하는 회전모드에서 하부프레임이 용이하게 회전할 수 있도록 함은 물론 고정용돌기의 마찰에 의한 손상을 방지할 수 있는 것을 특징으로 하는 모드전환이 가능한 캐스터. An auxiliary wheel is included at the end of the fixing protrusion of the fixing pin, so that the lower frame can easily rotate in the rotation mode in which the lower frame rotates, as well as to prevent damage caused by friction of the fixing protrusion. The caster which can change mode characterized by.
PCT/KR2010/002130 2009-06-05 2010-04-07 Mode-convertible caster WO2010140764A1 (en)

Applications Claiming Priority (2)

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KR10-2009-0049996 2009-06-05
KR1020090049996A KR100993524B1 (en) 2009-06-05 2009-06-05 A caster capable of mode-conversion

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US20150306908A1 (en) * 2014-04-29 2015-10-29 Waxman Consumer Products Group Inc. Convertible caster assembly
EP3012116A4 (en) * 2013-06-21 2017-06-07 Chae Jin Han Fixed and rotating cart caster

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US4248445A (en) * 1979-06-18 1981-02-03 Vassar Hervey P Caster brake and swivel lock
JPH0563902U (en) * 1992-02-04 1993-08-24 有限会社井口商店 Locking device for structure casters
KR0141040B1 (en) * 1995-06-26 1998-06-01 김태구 Wheel structure of caster
US20070089265A1 (en) * 2005-10-21 2007-04-26 Paul Lin Lockable wheel assembly and cart including the same
JP2008001355A (en) * 2006-05-25 2008-01-10 Nansin Co Ltd Double-lock type caster
KR100828016B1 (en) * 2000-02-17 2008-05-08 콤비 가부시키가이샤 Caster for baby carriage

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US4248445A (en) * 1979-06-18 1981-02-03 Vassar Hervey P Caster brake and swivel lock
JPH0563902U (en) * 1992-02-04 1993-08-24 有限会社井口商店 Locking device for structure casters
KR0141040B1 (en) * 1995-06-26 1998-06-01 김태구 Wheel structure of caster
KR100828016B1 (en) * 2000-02-17 2008-05-08 콤비 가부시키가이샤 Caster for baby carriage
US20070089265A1 (en) * 2005-10-21 2007-04-26 Paul Lin Lockable wheel assembly and cart including the same
JP2008001355A (en) * 2006-05-25 2008-01-10 Nansin Co Ltd Double-lock type caster

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EP3012116A4 (en) * 2013-06-21 2017-06-07 Chae Jin Han Fixed and rotating cart caster
US20150306908A1 (en) * 2014-04-29 2015-10-29 Waxman Consumer Products Group Inc. Convertible caster assembly
US9428009B2 (en) * 2014-04-29 2016-08-30 Waxman Consumer Products Group Inc. Convertible caster assembly

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