KR100935438B1 - Turning wheel of chair - Google Patents

Turning wheel of chair Download PDF

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Publication number
KR100935438B1
KR100935438B1 KR1020070096642A KR20070096642A KR100935438B1 KR 100935438 B1 KR100935438 B1 KR 100935438B1 KR 1020070096642 A KR1020070096642 A KR 1020070096642A KR 20070096642 A KR20070096642 A KR 20070096642A KR 100935438 B1 KR100935438 B1 KR 100935438B1
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KR
South Korea
Prior art keywords
supporter
wheel
housing
chair
support
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Application number
KR1020070096642A
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Korean (ko)
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KR20090030935A (en
Inventor
양영삼
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양영삼
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Priority to KR1020070096642A priority Critical patent/KR100935438B1/en
Publication of KR20090030935A publication Critical patent/KR20090030935A/en
Application granted granted Critical
Publication of KR100935438B1 publication Critical patent/KR100935438B1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • A47C7/006—Chair or stool bases with castors

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  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

The present invention relates to a rotating wheel for a chair provided with a movable support, a lower wheel housing, the supporter housing integrally formed on one side of the wheel housing, the upper end is engaged with the support leg of the chair and the lower end is the supporter In the rotating wheel for a chair having a supporter penetrating the housing, a spring elastically installed between the support leg and the supporter housing in a state in which the supporter is wrapped, and a wheel rotatably mounted in the wheel housing,

The lower support of the supporter is assembled with a movable support for rotatably supporting the chair in a horizontal direction,

The upper part of the supporter housing is accommodated in a state in which the lower part of the spring supporting the support leg is inserted into a state in which the upper part of the spring is exposed to the outside when the user's weight is not loaded on the chair. When the user's weight is carried on the spring is elastically compressed to conceal the spring hole is formed,

The supporter housing is accommodated in the lower part of the supporter housing assembled in the lower assembly of the supporter in the up and down state, so that when the user's weight is not loaded on the chair so that the movable support is immersed upward to conceal the chair When the user's weight is loaded in the invention is characterized in that the support hole is formed so that the movable support port appears downward toward the floor by the lowering operation of the supporter descending while elastically compressing the spring.

Rotating wheel, supporter, wheel housing, supporter housing, spring, movable support, spring hole, support hole, shaft support

Description

Turning wheel of chair with moving support {Turning wheel of chair}

The present invention is to improve the rotating wheels mounted on the chair's support leg when the weight of the person loaded on the chair is moved to the floor downwards toward the floor is supported on the floor to limit the rolling operation of the wheel, the weight is not loaded Otherwise, the movable support port is moved upward, and the present invention relates to a chair rotating wheel having a movable support configured to enable rolling of the wheels. The present invention improves the pre-registered patent registration No. 608995 to allow the user to When seated, only the movable support is supported on the floor, and the weight of the user is not carried on the wheels, thereby extending the service life of the wheels. It is to provide.

In general, the revolving wheels are mounted on the support legs of the cloud-moving chairs. The revolving wheels mounted on the support legs of the chairs are always on the floor regardless of whether the user uses the chairs or not. It is configured to be supported in the state, and when the user is sitting on the chair, the wheel movement is limited, while if the user does not sit on the chair, the wheel is able to operate the cloud to move the chair (as described above) And registered patent No. 608995).

The former rotating wheel is supported on the floor with cloud movement at all times regardless of whether or not the user sits or does not sit on the chair. It has been pointed out as a problem that the phenomenon of moving occurs.

When the user does not sit on the chair, the latter rotating wheel moves only when the wheel touches the floor and moves on the floor, while when the user sits on the chair, the spring is elastically installed between the housing of the wheel and the support leg of the chair according to the weight of the user. When the fixed pole reaches the floor and supports the chair while being compressed, the wheel does not move even when the user moves the body while sitting on the chair. The invention of Patent No. 608995 discloses two wheels. It is pointed out that the problem is that the cost of the wheel can be weakened because the production cost of the wheel is high because the wheel is composed using the wheel.

And the design proposed in Utility Model Registration No. 349204, the wheel is rotatably mounted on one side of the wheel housing, the other side of the fixed pole is mounted so as to penetrate the housing up and down, the top of the fixed pole is a chair It is elastically installed with a spring interposed between the bottom of the support leg and the upper surface of the housing in the state of screw assembly to the support leg of the support leg formed integrally with the lower end of the lower jingj is configured to protrude from the bottom, The chair wheels that are configured together are always exposed to springs that support the wheel housings installed at the bottom of the chair's support legs, that is, when the user sits on the chair, they are compressed and when the user wakes up from the chair, It is exposed in an elastically restored state, and the support piece formed at the bottom of the fixing pole is also always exposed. Problems have been pointed out that these components will damage the appearance of the chair.

In addition, the design of the Utility Model No. 349204 described above is attached to the bottom of the support leg of the chair to cover the entire wheel housing in order to conceal the spring support for the wheel housing and the support piece at the bottom of the fixed pole. The structure is also proposed, but the above-mentioned fixture should be formed large enough to allow the wheel housing to rotate 360 ° around the fixed pole, and even when the fixture covering the wheel housing is formed large, This causes a problem that damages the overall appearance.

The present invention has been proposed in view of the above-mentioned problems in the prior art, and a supporter for rotatably engaging a wheel housing for rotatably accommodating wheels and a supporter for connecting a rotation wheel to a support leg of a chair. The housing is integrally formed, and the wheels accommodated in the wheel housing are rotatably installed in a state in which only a part of the lower part is exposed, and a spring for elastically supporting the supporter engaged with the supporter housing is a spring formed on the upper part of the supporter housing. In the state accommodated to conceal the hole to the elastic support of the intermediate flange of the supporter, the support base coupled to the bottom of the supporter is concealed in the support hole formed in the lower portion of the supporter housing to be accommodated in a state capable of moving up and down If you are sitting in a user's chair The force supporting spring is concealed in the spring hole in the upper part of the supporter housing, and the movable support hole engaged at the lower part of the supporter emerges from the support hole and is supported on the floor. In contrast, when the user stands up from the chair, the spring supporting the supporter Only the upper part is exposed to the upper part of the spring hole, and the moving base is immersed in the base of the base hole to be concealed to improve the external structure of the rotating wheel to be in a beautiful state. And the wheel is invented to protect the wheel and to extend its service life by preventing the weight of the user sitting on the chair to be raised to a fine height from the floor to the wheel.

The present invention as a means for achieving the above object,

A wheel housing having a lower opening, a supporter housing integrally formed at one side of the wheel housing, an upper end coupled to a support leg of a chair, and a lower supporter passing through the supporter housing, and a support leg and a supporter wrapped in the supporter. In the revolving wheel for a chair having a spring that is elastically installed between the housing and the wheel rotatably mounted in the wheel housing,

The lower support of the supporter is assembled with a movable support for rotatably supporting the chair in a horizontal direction,

The upper part of the supporter housing is accommodated in a state in which the lower part of the spring supporting the support leg is inserted into a state in which the upper part of the spring is exposed to the outside when the user's weight is not loaded on the chair. When the user's weight is carried on the spring is elastically compressed to conceal the spring hole is formed,

The supporter housing is accommodated in the lower part of the supporter housing assembled in the lower assembly of the supporter in the up and down state, so that when the user's weight is not loaded on the chair so that the movable support is immersed upward to conceal the chair When the user's weight is loaded, the support hole is formed so that the movable support port appears downward toward the floor by the lowering operation of the supporter that descends while elastically compressing the spring.

In addition, the left and right sides of the wheel housing protrude from the semi-circular shape of the wheel cover having a larger diameter than the wheel to extend the installation space of the wheel, the wheels protruding to both sides of the wheel inside the wheel cover It is characterized in that it comprises a shaft support which is formed for each of the bearing groove for the shaft is rotatably fitted.

In addition, the rotation wheel is the height of the wheel between the bottom of the middle flange of the supporter and the top of the supporter housing is lifting the support leg by the elasticity of the spring when the user's weight is not loaded on the chair is supported It is characterized in that it is greater than the height between the bottom and the bottom of the wheel housing.

The present invention is concealed in a state in which the spring that is elastically supporting the support leg when the user sits on the chair is completely immersed in the spring hole formed in the upper part of the supporter housing, while being inserted into the support hole formed in the lower part of the supporter housing When the support base appears and is supported on the floor, the upper portion of the support base still remains inserted in the support hole, and when the user wakes up from the chair, the supporter lifts the support leg upward by the spring elasticity. Lifting, but only to expose the upper portion of the spring and simultaneously immersing the movable support port into the support hole to conceal the movement of the spring and the floor supporting the elastic support of the support leg from the rotating wheel attached to the support leg of the chair Minimize the exposure of the sphere to enhance the beauty of the appearance In addition, when the user sits on the chair, the movement support of the floor is limited by the movement support of the wheel, and the weight of the user is not transmitted to the wheel but is concentrated only on the movement support, thereby protecting the wheel and extending the service life. Provide the effect of enabling

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of a rotating wheel for a chair according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 is an exploded perspective view of the rotary wheel of the present invention, Figure 3 is a side view of the installation state of the rotary wheel of the present invention, Figures 4 and 5 are a cross-sectional view taken along line AA and BB of Figure 3, Figure 6 and Figure 7 shows a cross-sectional view of the operating state of the rotary wheel of the present invention.

Reference numeral 1 denotes a rotating wheel, and the rotating wheel 1 is mounted at the bottom of the support leg 100 of the chair or may be mounted at the bottom of a desk or furniture, although not shown in the drawing.

The rotating wheel (1) is a wheel (2) for rolling operation on the floor, the supporter (3) attached to the assembled state at the bottom of the chair support leg 100, and the wheel (2) rotatably installed The wheel housing 4, the supporter housing 5 installed in a state where the supporter 3 penetrates, a spring 6 for elastically supporting the supporter 3, and one end of the supporter 3; It consists of a movable support (7) rotatably attached.

First, the wheel shaft 21 formed in the center of the wheel 2 protrudes to both sides.

Next, the supporter 3 is divided into an upper end 31 attached to the chair support leg 100, a lower end 32 assembled to the supporter housing 4, and an intermediate flange 33 formed between the upper and lower ends. The upper end portion of the upper end 31 is formed with an annular locking groove 34 and the upper assembly 35 to be rotatably assembled in the state inserted into the bottom of the support leg 100, In addition, the lower end portion of the lower end portion 32 is inserted into the assembly hole 71 formed on the upper surface of the movable support 7 to the annular locking groove for rotatably assembling the movable support 7 ( 36) and the lower assembly portion 37 is formed.

Next, the wheel housing 4 has a wheel cover portion 41 formed with a diameter larger than the wheels 2 so as to secure the installation space of the wheels 2 on each of the left and right sides thereof. In addition, both side shaft support 42 protruding vertically downward from the body of the upper side of both sides of the wheel housing 4 in a state of being relaxed with the inner surface of the both side wheel cover part 41 inside the wheel housing 4. ) Is formed (see FIGS. 1 and 5).

Next, the supporter housing 5 has a spring hole 51 for receiving a lower end 32 of the supporter 3 and a spring 6 installed in a state in which the supporter 3 is wrapped, and a lower portion of the supporter housing 5 is provided. A support hole 52 for accommodating the sphere 7 in the up and down direction is formed, and a lower end portion 32 of the supporter 3 is formed between the spring hole 51 and the support hole 52. An intermediate wall 54 is formed, through which a sliding hole 53 through which) moves so as to move up and down is formed.

In addition, a reinforcing rib 55 protruding toward the inside of the support hole 52 is formed at the bottom of the intermediate wall 54 of the supporter housing 5, and the reinforcing rib 55 centers on the sliding hole 53. It is formed radially.

Next, the spring 6 is inserted into the spring hole 51 of the supporter housing 3 while being fitted to surround the lower end 32 of the supporter 3, and assembled to be in close contact with the bottom of the support leg 100. The intermediate flange 33 of the supporter is installed to support the elasticity of the user not holding the chair, that is, the weight of the user is not loaded on the chair support the intermediate flange 33 of each other supporting the support leg 100 It has an elastic force that can be lifted to a certain height (H 2 ) at the top of the housing (5), and has elasticity that is elastically compressed by the load applied to the support leg 100 when the user's weight is loaded on the chair. .

Next, the movable support 7 is formed to a diameter that can be sunk into the support hole 52 of the supporter housing 5, and when the user's weight is loaded on the chair to appear downward from the support hole 52 The floor is supported, and when the user's weight is not loaded on the chair, the spring is immersed into the support hole 52 by the elastic restoring force of the spring 6 to be concealed.

On the other hand, the rotary wheel 1 is the intermediate flange 33 of the supporter (3) supporting the support leg 100 by the elastic force of the spring (6) in the state that the user does not sit on the chair of the supporter housing (5) Raised at a certain height (H 2 ) from the top and the wheel (2) is supported on the floor, the bottom of the wheel (2) and the wheel housing (4) and the supporter housing (5) The height H 2 formed between the upper end of the supporter housing 5 and the intermediate flange 33 lifted by the elastic force of the spring 6 is higher than the height H 1 therebetween (H 2 > H 1). )to be.

The operation of the present invention configured as described above will be described.

When the user does not sit on the chair, that is, when the user's weight is not loaded on the chair, only the lower part of the wheel 2 mounted on the wheel housing 4 and supporting the floor is exposed. The spring 6, which is mounted in the spring hole 51 of the supporter housing 5 and elastically supports the support leg 100, has only a part of the upper part that is in close contact with the bottom of the intermediate flange 33 of the supporter 3. Exposed to the outside and most of the spring (6) is concealed in the state inserted into the spring hole 51, and the movable support 7 attached to the lower assembly portion 37 of the supporter 3 is the supporter housing It is concealed in the state immersed into the support hole 52 of (5), thereby reducing the exposed portion of the spring (6) to elastically support the rotating wheel (1). 3 and FIG. 7)

When the user does not sit on the chair as described above, the plurality of rotating wheels 1 attached to each of the plurality of supporting legs 100 formed on the chair are exposed to the wheel housing 4 and the supporter housing 5 only. It becomes a state.

In addition, when the user sits on the chair, the user's weight is loaded on the support leg 100, and thus the supporter 3 is lowered while elastically compressing the spring 6, thereby assembling the lower end of the supporter 3. The movable support 7 attached to the 37 slides downwardly from the supporting hole 52 to reach the bottom. When the movable support 7 reaches the bottom, the supporter 3 is moved. The state can not be lowered any more, in this case, the intermediate flange 33 supporting the support leg 100 is spaced apart at a fine interval (S) from the top of the supporter housing (5) (see Fig. 6). )

When the user is seated on the chair as described above, the spring 6 supporting the intermediate flange 33 of the supporter 3 is compressed into the spring hole 51 of the supporter housing 5 to be completely concealed. The support base 7 mounted on the support hole 52 of the supporter housing 5 supports the bottom of the support hole 52 in a state in which only a part of the lower part is exposed. Therefore, even when the user sits on the chair, the rotary wheel 1 is in a state in which only the wheel housing 4 and the supporter housing 5 are exposed.

On the other hand, as described above, when the support 7 is supported on the floor and the supporter 3 can no longer go down, the weight of the user sitting on the chair is supported by the supporter 3 and the support 3 through the support leg 100 ( 7) will be concentrated only, the wheel (2) spring 6 is to act only the elastic force to elastically press the intermediate wall 54 of the supporter housing. Therefore, the wheel 2 is protected so as not to carry the weight of the user to represent a feature that extends the service life.

In addition, the wheel housing 4 has an inner space that is extended by both wheel cover parts 41 formed at left and right sides thereof, so that the wheel shafts 42 protruding to both sides of the center of the wheels 2 have both shaft support members 43. Since it is rotatably supported in the bearing groove 43 by the length beyond the thickness width of (see Fig. 5) will be able to support the wheel 2 in a more stable state.

1 and 2 are an exploded perspective view of the rotating wheel of the present invention.

Figure 3 is a side view of the installation state of the rotary wheel of the present invention.

4 and 5 are cross-sectional views taken along line A-A and line B-B in FIG.

6 and 7 are cross-sectional view of the operating state of the rotary wheel of the present invention.

※ Explanation of code for main part of drawing

1: wheel 2: wheel

21: wheel shaft 3: supporter

31,32: upper and lower part 33: middle flange

34, 36: annular locking groove 35,37: upper and lower assembly

4: wheel housing 41: wheel cover

42: shaft support 43: shaft bearing groove

5: supporter housing 51: spring hole

52: support hole 54: intermediate wall

6: spring 7: movable support

71: assembly groove 100: support leg

H 1 <H 2 : height S: spacing

Claims (3)

A wheel housing 4 having a lower opening, a supporter housing 5 integrally formed at one side of the wheel housing, and an upper end coupled to the support leg 100 of a chair, and a lower supporter 3 passing through the supporter housing. And a spring 6 elastically installed between the support leg and the supporter housing in a state in which the supporter is wrapped, and a wheel 2 rotatably mounted in the wheel housing. In the lower assembly portion 37 of the supporter 3, a movable support 7 for fixing the chair is rotatably assembled in a horizontal direction. The upper part of the supporter housing (5) is accommodated in the state of inserting the lower part of the spring (6) supporting the support leg of the chair, when the weight of the user is not loaded on the chair, only the upper part of the spring is exposed to the outside The spring hole 51 is formed so that the spring is elastically compressed and concealed when the user's weight is loaded on the chair. When the supporter housing (5) is accommodated in the state that the movable support (7) assembled in the lower assembly of the supporter (3) in the upper and lower parts can be mounted on the lower part of the support when the user's weight is not loaded on the chair Supporting hole to be immersed upward to conceal, and when the user's weight is loaded on the chair by the lowering operation of the supporter 3 descending while compressing the spring elastically the support base 7 appears downward toward the floor In the rotary wheel for chairs (52) formed, On the left and right sides of the wheel housing 4, a semicircular wheel cover part 41 having a larger diameter than the wheel is formed to protrude from the left and right sides of the wheel housing 4, and the inner side of the wheel cover part. The movement support is characterized in that it further comprises a shaft support 42, each of which is formed with a bearing groove 43 is rotatably fitted to the wheel shaft 21 protruding to both sides of the wheel (2) Swivel wheels equipped with chairs. delete delete
KR1020070096642A 2007-09-21 2007-09-21 Turning wheel of chair KR100935438B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070096642A KR100935438B1 (en) 2007-09-21 2007-09-21 Turning wheel of chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070096642A KR100935438B1 (en) 2007-09-21 2007-09-21 Turning wheel of chair

Publications (2)

Publication Number Publication Date
KR20090030935A KR20090030935A (en) 2009-03-25
KR100935438B1 true KR100935438B1 (en) 2010-01-06

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KR1020070096642A KR100935438B1 (en) 2007-09-21 2007-09-21 Turning wheel of chair

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101420862B1 (en) * 2012-12-20 2014-07-22 최주빈 Chair having apparatus for fixing wheel
KR101450599B1 (en) * 2014-02-11 2014-10-22 (주) 아모스아인스가구 Wheel assembly with braking function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171704U (en) * 1982-05-13 1983-11-16 株式会社コトブキ chair leg wheel device
JPH09276069A (en) * 1996-04-17 1997-10-28 Nobuyuki Suzuki Chair with caster provided with spring
JPH10181303A (en) 1996-12-27 1998-07-07 Shimooka:Kk Caster for chair
KR20030012342A (en) * 2001-07-31 2003-02-12 황주환 A caster assembly for chair

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171704U (en) * 1982-05-13 1983-11-16 株式会社コトブキ chair leg wheel device
JPH09276069A (en) * 1996-04-17 1997-10-28 Nobuyuki Suzuki Chair with caster provided with spring
JPH10181303A (en) 1996-12-27 1998-07-07 Shimooka:Kk Caster for chair
KR20030012342A (en) * 2001-07-31 2003-02-12 황주환 A caster assembly for chair

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Publication number Publication date
KR20090030935A (en) 2009-03-25

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