KR101676352B1

KR101676352B1 - Portable Chair

Info

Publication number: KR101676352B1
Application number: KR1020160008646A
Authority: KR
Inventors: 이광호
Original assignee: 이광호
Priority date: 2016-01-25
Filing date: 2016-01-25
Publication date: 2016-11-15

Abstract

According to the present invention, a frame rotatably holding a first wheel and a second wheel; A bracket fixed on the frame; A support bar rotatably mounted on the bracket about a horizontal axis; A lifting bar vertically movable with respect to the supporting bar; A seat fixed to an upper end of the lifting bar; And an elastic body having a first end inserted and fixed in a spring insertion hole formed in the frame and a second end inserted and fixed in a spring insertion hole formed in a lower end of the support bar .

Description

{Portable Chair}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair that can be used in a working environment such as a field, a seaside, and a sandy field, and more particularly relates to a chair that is resiliently returned to its original position, It is about a chaise-long chair that does not turn the bottom and always keeps it down so that it is not bad for the garage, and it solves the inconvenience by reducing the accident when turning.

Conventionally, by using a simple chair rather than performing a work in a normal posture while performing a special work in the outdoors, it is possible to perform work in a sitting posture and a sitting posture by adjusting the length, So that it can sit anywhere, so that work efficiency can be further improved.

For example, fruit juices work in high posture for a long time, and strawberries are located at a relatively low height, so the worker must perform work while moving to a long sitting position.

Therefore, even when the chair is put on the chair, it is necessary to carry out the work while moving in the sitting position.

On the other hand, the operator can sit on the chair and change the posture as needed. For example, it may be necessary to change postures such as bending or straightening the left or right or waist. At this time, if the chair can move in accordance with the change of the posture of the user or can return to the home position, the usability of the chair can be improved and the working efficiency can be improved.

In the Utility Model Registration No. 20-0477838 filed and filed by the present applicant, a chair that can be used in a field or a seaside is disclosed. The chair according to the registration utility model includes: a seat plate that is in contact with the buttocks of the user; A leg connected to the center of the bottom of the seat and having a lower end extending downward; A fall preventing bar provided on the leg so as to be inclined downward toward the rear of the seat; A pedestal hinged to the leg so that an angle between the ground and the leg can be changed and coupled with the leg so that the leg can rotate 360 degrees about an axis perpendicular to the ground; And a fixing band installed on both sides of the seat so that the seat can be hung on the buttocks of the user and fixing the body of the user by binding; .

Meanwhile, the bearing unit provided on the chair according to the utility model registration includes a bracket having a cross section in a U-shape, including a side plate and a side plate vertically extending at both ends of the side plate. A hinge shaft passing through a side plate of the bracket in a horizontal direction and passing through a leg sandwiched between the side plates; A shaft bolt vertically penetrating the transverse plate; And a support plate coupled to the shaft bolt through the transverse plate so as to be rotatable about an axis perpendicular to the ground surface with the shaft bolt as a central axis; Wherein the base plate is formed in a plate shape and has an edge bent upwardly and is provided between the base plate and the bracket and formed in a coil spring shape with an upper end fixed to the bracket and a lower end fixed to the transverse plate And a buffer spring.

The chair according to the utility model registration is designed so that the bed is supported on the ground and the fixing band is fixed to the body of the user so that the user can move together with the chair when the user walks up from the sitting position.

However, such a garage chair does not have a means for returning to its original position when the user is sitting on the seat and changing his / her posture.

In addition, the above-mentioned garage has a problem that the stability is poor and the mobility is low because the chair moves fixedly to the user's body.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an improved garage chair.

Another object of the present invention is to provide a chair that can be returned to the home position without any user's action even if the seat is inclined.

Another object of the present invention is to provide a chair which is easy to use and which can improve the working efficiency.

In order to achieve the above object, according to the present invention, there is provided a frame for rotatably holding a wheel; A bracket fixed on the frame; A support bar rotatably mounted on the bracket about a horizontal axis; A lifting bar vertically movable with respect to the supporting bar; A seat installed on an upper end of the lifting bar to extend forward forward from a seat on which the buttocks are seated to allow a free movement of the seat when the user stands up; And an elastic body having a first end inserted and fixed in a spring insertion hole formed in the frame, and a second end inserted and fixed in a spring insertion hole formed in a lower end of the support bar; Is provided.

According to an aspect of the present invention, a wheel fixing portion extending vertically is formed at both ends of the frame, and the wheel fixing portion is formed with a slot into which the rotation axis of the wheel is inserted, respectively.

According to another aspect of the present invention, a rolling preventing portion for preventing rolling of the wheel is protruded at the bottom of the frame, and the wheel is prevented from rolling by contacting the rolling preventing portion.

According to the present invention, there is also provided a frame having a plurality of vertical extensions formed with long holes; A horizontal support disposed between the vertical extensions at the bottom of the frame; A pin inserted into the slot and fixed to the horizontal support; A bracket fixed on the frame; A support bar rotatably mounted on the bracket about a horizontal axis; A lifting bar vertically movable with respect to the supporting bar; A seat installed on an upper end of the lifting bar to extend forward forward from a seat on which the buttocks are seated to allow a free movement of the seat when the user stands up; And an elastic body having a first end inserted and fixed in a spring insertion hole formed in the frame and a second end inserted and fixed in a spring insertion hole formed in a lower end of the support bar .

According to another aspect of the present invention, there is further provided an annular guide rotatably provided at the bottom of the seat, and the elevating bar is surrounded by the annular guide.

According to another aspect of the present invention, there is further provided a stopper that is rotatably installed at the bottom of the seat and is elastically biased, and the hook formed on the stopper is biased toward the bottom of the seat, .

The chair according to the present invention has an advantage that a user who is seated in the seat can return to the original position elastically even if the seat is tilted as needed and then the seat is returned to the original position without taking any additional action.

In addition, the garage chair of the present invention can be applied to various working environments, for example, a work environment such as a field, a rocky shore, and a sandy field, and has an advantage of providing convenience for users and improvement of work efficiency.

1 is a schematic exploded perspective view of a first embodiment of a garage chair according to the present invention.
2 is a schematic exploded perspective view of a second embodiment of a garage chair according to the present invention.
3 is a schematic perspective view of a third embodiment of a garage chair according to the present invention.
4 is a schematic exploded perspective view showing a rotating structure of a lifting bar of a chair in accordance with the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to an embodiment shown in the accompanying drawings.

1 is a schematic exploded perspective view of a garage chair according to an embodiment of the present invention.

Referring to the drawings, a chair according to the present invention includes a frame F for rotatably holding a first wheel 11 and a second wheel 12, brackets 15 fixed on the frame F, A support bar FB provided on the bracket 15 so as to be rotatable about a horizontal axis; a lifting bar SB provided so as to be capable of lifting and lowering relative to the support bar FB; A first end portion 20a inserted and fixed to a spring insertion hole 21 formed in the frame F and a spring insertion hole 22 formed in a lower end portion of the support bar FB, And an elastic body 20 having a second end 20b fixedly inserted into the second end 20b.

Wheel mounting portions F1 and F2 extend vertically at both ends of the frame F extending in the horizontal direction. Slots F11 and F21 are vertically formed in the wheel mounting portions F1 and F2 and a rotation axis of the first wheel 11 and a rotation axis of the second wheel 12 are fixed to the long holes F11 and F21, Respectively.

The rotation axis of the first wheel 11 and the rotation axis of the second wheel 12 can move up and down along the long holes F11 and F21. The hubs 11a and 12a shown in the figure are fixed to the rotation axis of the first wheel 11 and the rotation axis end of the second wheel 12 so that the rotation axis of the wheels does not deviate from the slot.

The lower ends of the wheel mounting portions F1 and F2 can contact the ground when the rotational axes of the wheels 11 and 12 are raised along the long holes F11 and F21.

That is, when the user is sitting on the seat S, the rotation axis of the wheels 11 and 12 is raised along the slot. At this time, the lower ends of the mounting portions F1 and F2 come into contact with the ground, .

The seat S may be provided at the upper end of the lifting bar SB and may be provided with a motion-free oil tool extending forward from the seat where the hips are seated. This free motion inducing part is positioned in the crotch when the user stood up or moves, thereby allowing the seat S to freely walk or move without being caught by the user's crotch.

Further, hooks (L) may be provided on the front and rear sides of the seat (S) to be fixed to the user's belt.

The anti-rolling portion 65 may be provided on the bottom surface of the frame F to prevent the rolling of the wheels when the wheels 11 and 12 are lifted. The rolling preventing portion 65 can prevent rotation by contacting the surfaces of the wheels 11 and 12 with the wheels 11 and 12 raised.

A bracket 15 is fixed to the upper surface of the frame (F). The bracket 15 has a horizontal portion 15a and vertical portions 15b disposed on both sides of the horizontal portion 15a. Holes are formed in the horizontal portion 15a and the vertical portion 15b of the bracket 15, respectively.

The fixing bolt 35 inserted from the lower portion of the frame F passes through the hole formed in the horizontal portion 15a and the fixing nut 37 disposed on the upper portion of the bracket 15 is inserted into the fixing bolt 15, To be fixed to the end of the washer 35, and the washer 36 can be installed together.

One or more protrusions 61 may be provided on the upper surface of the frame F to prevent the bracket 15 from rotating about a vertical axis at the upper surface of the frame F. [

When the bracket 15 is installed on the upper surface of the frame F, the projection 61 can be disposed adjacent to the side surface of the bracket 15 to prevent rotation about the vertical axis.

At the lower ends of the support bars FB, rotation axis insertion portions 43 are formed at both side edges. The rotation shaft insertion portion 43 is provided with a hole through which the rotation shaft 41 can be inserted.

The rotary shaft 41 is inserted into a hole formed in the vertical portion 15a of the bracket 15 and a hole formed in the rotary shaft inserting portion 43 of the support bar FB and is fixed by a rotary shaft nut 45.

The rotation of the support bar FB can be smoothly performed by providing the bearing 42 on the rotary shaft 41.

Therefore, the support bar FB can rotate about the rotation axis 41 extending in the horizontal direction, so that the lifting bar SB and the seat S also rotate together with the rotation axis 41 extending in the horizontal direction, .

The supporting bar (FB) is preferably a hollow column, and a long hole (32) is formed on one side in the vertical direction. Although not shown in the drawings, at the position corresponding to the elongated hole 32, a plurality of height adjusting holes (not shown) are formed on the supporting bar FB at different heights in the height direction.

The lifting bar SB is formed with a through hole 33 through which the shaft of the height adjusting knob 31 can be inserted. The end of the shaft of the height adjusting knob 31 inserted through the through hole 33 is inserted into one of a plurality of height adjusting holes (not shown) of the supporting bar FB, Can be maintained in a fixed state with respect to the movable table SB.

The elevating bar SB is moved upward and downward along the supporting bar FB in a state where the axis of the height adjusting knob 31 is separated from a plurality of height adjusting holes (not shown) arranged at different heights of the elevating bar SB It can ascend and descend.

Thereby, the appropriate height of the seat S can be selected. Thereafter, when the height adjusting knob 31 is inserted into one of the height adjusting holes (not shown) arranged at different heights of the lifting bar SB, the seat S can be held at the selected height.

The elastic body 20 has a bent shape in the example shown in the drawing. However, other embodiments may have different shapes. The first end portion 20a of the elastic body 20 is inserted into the spring insertion hole 21 formed in the frame F and the second end portion 20b of the elastic body 20 is inserted into the spring insertion hole 21 formed at the lower end portion of the support bar FB Is inserted into the insertion hole (22).

Another spring insertion hole (not shown) may be formed in a symmetrical shape on the opposite surface of the spring insertion hole 22 of the support bar FB and the second end portion 20b of the elastic body 20 may be formed And can be inserted into the corresponding spring insertion hole (not shown).

The elastic body 20 can be made of any material, and any shape can be used. For example, a material such as vulcanized rubber, elastomer, metal, or the like can be used, and it can be formed into a coil shape, a plate shape, or the like as well as the shape shown in the drawings.

Even if the seat S rotates about the rotary shaft 41 against the elastic force of the elastic body 20 due to the configuration of the elastic body 20 as described above, Can return to the original position.

This is because when a person sitting in the seat S performs an operation in a state in which the seat S is tilted as required, and then returns to the original state, the seat S is automatically returned without any operation .

The seat S may be provided with a belt (not shown). The belt shown in the figures may be configured to, for example, enclose the user's knee.

Hereinafter, the operation of the chair according to the present invention will be briefly described.

In the case of moving the chair according to the present invention, since the load through the seat S is not applied to the frame F, when the user holds the chair and pulls it upwards slightly, the first wheel 11 and the second wheel The rotation axis of the wheel 12 is lowered along the long holes F11 and F21 so that the wheels 11 and 12 can easily roll on the ground.

In particular, the wheels 11, 12 can be picked up in a working environment such as a field, a seaside or a sandy field.

On the other hand, when the user sits in the seat S of the chair to be kicked, the user rises along the long holes F11 and F21 of the rotation axis of the wheels 11 and 12 and the wheel fixing parts F1 and F2 of the frame F And comes into contact with the ground. Therefore, the frame F can be stably held on the ground.

At this time, the rolling preventing portion 65 prevents the rolling of the wheels by contacting the surfaces of the wheels 11 and 12. [

The user sits on the seat S and performs necessary work. At this time, the height of the seat S can be adjusted according to the user's needs.

For example, the height of the seat S can be adjusted so that the user's foot can touch the ground. The height of the seat S can be achieved by raising and lowering the lift bar SB by a necessary height with respect to the support bar FB and then fixing the lift bar SB using the height adjusting knob 31. [

The user can sit on the seat S to take various positions, and tilt as needed.

At this time, the elevating bar SB and the supporting bar FB together with the seat S can rotate about the rotational axis 41 extending in the horizontal direction together. At this time, the elastic body 20 is deformed, so that an elastic restoring force is generated in the seat S.

Thereafter, when the user changes from the inclined posture to the posture, the seat S returns to the original position without any other action due to the elastic restoring force of the elastic body 20. [

2 is a schematic exploded perspective view of a second embodiment of the present invention. The example shown in Fig. 2 differs from the embodiment of Fig. 1 in that only one wheel is used instead of two wheels.

Therefore, it should be understood that the same reference numerals are used for the same components in the embodiments shown in Figs. 1 and 2, and detailed descriptions of the same components can be omitted.

Referring to the drawings, a garage chair comprises a frame F for rotatably retaining a wheel 11, a bracket 15 fixed on the frame F, and a bracket 15 fixed on the bracket 15, A lifting bar SB provided so as to be movable up and down with respect to the supporting bar FB; a seat S fixed to an upper end of the lifting bar SB; A first end portion 20a inserted and fixed to the spring insertion hole 21 formed in the support bar FB and a second end portion 20b inserted and fixed to the spring insertion hole 22 formed at the lower end portion of the support bar FB And an elastic body (20) provided thereon.

The wheel mounting portion F1 extends perpendicularly to the frame F extending in the horizontal direction. A long hole F11 is formed in the wheel mounting portion F1 and the rotation axis of the wheel 11 is rotatably inserted into the long hole F11.

The rotation axis of the wheel 11 can move up and down along the long hole F11. The hub 12a is fixed to the rotation shaft end of the rotary shaft of the wheel 11. [ The lower end of the wheel mounting portion F1 can be brought into contact with the ground when the rotational axes of the wheel 11 are raised along the long hole F11. A rolling prevention portion 65 may be provided on the bottom surface of the frame F to prevent rolling of the wheels when the wheels 11 are lifted.

One or more protrusions 61 may be provided on the upper surface of the frame F to prevent the bracket 15 from rotating about a vertical axis at the upper surface of the frame F. [ At the lower ends of the support bars FB, rotation axis insertion portions 43 are formed at both side edges. The rotation shaft insertion portion 43 is provided with a hole through which the rotation shaft 41 can be inserted.

The rotary shaft 41 is inserted into a hole formed in the vertical portion 15a of the bracket 15 and a hole formed in the rotary shaft inserting portion 43 of the support bar FB and is fixed by a rotary shaft nut 45. A bearing 42 is installed on the rotary shaft 41.

The supporting bar (FB) is preferably a hollow column, and a long hole (32) is formed on one side in the vertical direction.

Although not shown in the drawings, at the position corresponding to the elongated hole 32, a plurality of height adjusting holes (not shown) are formed on the supporting bar FB at different heights in the height direction.

The first end portion 20a of the elastic body 20 is inserted into the spring insertion hole 21 formed in the frame F and the second end portion 20b of the elastic body 20 is inserted into the spring insertion hole 21 formed at the lower end portion of the support bar FB Is inserted into the insertion hole (22).

A hole SC may be formed in the seat S, and a hole SC of the seat is a center point of the chair. The user can take a sitting position on the basis of the center point SC of the seat so that the chair can be used without falling over.

When the user sits on the seat (S) of the garage, the user sits on the basis of the hole (SC) formed in the seat (S) of the garage. Actually, the chair is slightly inclined with the hole SC as a reference point, and when the user sits on the seat S, the chair stands upright in the vertical direction, and can take an attitude not to fall.

FIG. 3 shows a schematic perspective view of a third embodiment of the present invention. In the embodiment of Fig. 3, parts similar to those of Fig. 1 and Fig. 2 are denoted by the same reference numerals, and the description of the parts can be omitted.

Referring to the drawings, the chair according to the present invention includes a frame F having a plurality of vertically elongated portions Fe formed with long holes Fa and a vertically extending portion Fe extending from the bottom of the frame F, A pin 115 inserted into the elongated hole Fa and fixed to the horizontal support 112, a bracket 15 fixed on the frame F, A support bar FB provided on the bracket 15 so as to be rotatable about a horizontal axis and a lift bar SB provided so as to be able to move up and down with respect to the support bar FB; A first end portion 20a inserted and fixed to a spring insertion hole 21 formed in the frame F and a spring insertion hole 22 formed in a lower end portion of the support bar FB, And an elastic body 20 having a second end portion 20b.

The horizontal support 112 may be held on the ground or may move to a position adjacent the bottom of the frame F. [ The pin 115 fixed to the horizontal support 112 moves along the long hole Fa so that the horizontal support 112 can stably move between the vertical extensions Fe of the frame F. [ The head of the pin 115 has a diameter wider than the width of the slot Fa so that the pin 115 can not escape from the slot Fa. The horizontal support 112 can act as a gliding part when dragging a chair. When the user sits on the seat S, the vertical extension portion Fe touches the ground surface to stabilize the chair.

4 is an exploded perspective view schematically showing a joining structure of the seat and the elevating bar.

Referring to the drawings, a rotation support 250 is provided on a bottom surface of a seat S shown by a virtual line, and a stopper 260 is rotatably installed. A shaft insertion hole through which the shaft 270 can be inserted is formed in the rotation support 250. The rotation support 250 may be formed integrally with the seat S, for example.

The stopper 260 has a rotation shaft 263 and the rotation shaft 263 is inserted into a rotation shaft insertion hole formed in the bottom surface of the seat S. [ The stopper 260 is rotatably held on the bottom surface of the seat S. [ The stopper 260 is provided with a hook 261 and a pressing portion 262. The stopper 260 is rotationally biased in one direction by an elastic biasing means such as a coil spring. That is, the hook 261 of the stopper 260 is biased in such a manner that the flange 220 of the lifting bar SB to be described later is pushed toward the bottom of the seat S. [

The lifting bar SB is installed at the bottom of the seat S in a state surrounded by the annular guide 210. The lifting bar SB is guided by the annular guide 210 and slides as indicated by the arrow A and can linearly move in both directions.

An annular guide 210 is provided at one end thereof with an axial insertion portion 210b and the axial insertion portion 210b is fitted to a rotary support 250 fixed to the bottom of the seat S. [ A hole 210a is formed in the shaft insertion portion 210b and a hole 210a in the shaft insertion portion 210b is aligned with a hole formed in the rotation support 250. The shaft 270 is inserted into the hole 210a of the shaft insertion portion 210b and the hole of the rotation support 250 so that the annular guide 210 is rotatably installed on the bottom surface of the seat S. [

As a result, depending on the rotational position of the annular guide 210, the lifting bar SB can be disposed at right angles to the seat S or parallel to the seat S. [ The hook 261 of the stopper 260 is hooked on the flange 220 formed at the upper end of the lifting bar SB when the lifting bar SB is at a right angle position with respect to the bottom of the seat S. [

The stopper 260 is elastically biased as described above so that the stopper 260 deflects the flange 220 against the bottom of the seat S and consequently the lifting bar SB moves in the direction of the arrow B Thereby preventing rotation automatically.

The user can apply a force against the elastic biasing of the stopper 260 by pressing the pressing portion 262 so that the lifting bar SB and the annular guide 210 rotate about the shaft 270 .

When the annular guide 210 rotates about the shaft 270 in the direction of the arrow B, the lifting bar SB becomes parallel to the bottom surface of the seat S, A direction.

By this action, the seat S and the lifting bar SB are folded in parallel to each other, and a convenient configuration is provided for movement and storage.

Therefore, according to the present invention as described above, it can be used in a work environment such as a field, a seaside, and a sandy field. Even when the seat is rotated to the left and right, the return to the original position is resilient. By always pointing down without pointing backwards, you can make your garage uncomfortable, and when you turn, you can reduce the inconvenience and resolve the discomfort.

11. First wheel 12. Second wheel
15. Brake 20. Elastomer
31. Height adjustment knob 32. Slot

Claims

A frame for rotatably holding the wheel;
A bracket fixed on the frame;
A support bar rotatably mounted on the bracket about a horizontal axis;
A lifting bar vertically movable with respect to the supporting bar;
A seat installed on an upper end of the lifting bar to extend forward forward from a seat on which the buttocks are seated to allow a free movement of the seat when the user stands up; And
An elastic body having a first end inserted and fixed in a spring insertion hole formed in the frame, and a second end inserted and fixed in a spring insertion hole formed in a lower end of the support bar;
, &Lt; / RTI &
Wherein a wheel fixing portion extending vertically is formed at both ends of the frame, and a slot is formed in the wheel fixing portion to insert the rotation axis of the wheel.

delete

The method according to claim 1,
Wherein a protruding portion for preventing the rolling of the wheel is protruded from the bottom of the frame, and the wheel is prevented from rolling by contacting the rolling preventing portion.

A frame having a plurality of vertical extensions formed with long holes;
A horizontal support disposed between the vertical extensions at the bottom of the frame;
A pin inserted into the slot and fixed to the horizontal support;
A bracket fixed on the frame;
A support bar rotatably mounted on the bracket about a horizontal axis;
A lifting bar vertically movable with respect to the supporting bar;
A seat installed on an upper end of the lifting bar to extend forward forward from a seat on which the buttocks are seated to allow a free movement of the seat when the user stands up; And
And an elastic body having a first end fixedly inserted into the spring insertion hole formed in the frame, and a second end inserted and fixed to the spring insertion hole formed at the lower end of the support bar.

The method according to claim 1 or 4,
Further comprising an annular guide rotatably mounted on a bottom portion of the seat, the elevating bar being surrounded by the annular guide and slidable along the annular guide.

5. The method of claim 4,
Further comprising a stopper rotatably installed at the bottom of the seat and biased elastically,
And the hook formed on the stopper biases the flange formed at the upper end of the lifting bar toward the bottom of the seat.