KR101763770B1 - Caster Apparatus having Deceleration device - Google Patents

Caster Apparatus having Deceleration device Download PDF

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Publication number
KR101763770B1
KR101763770B1 KR1020150136493A KR20150136493A KR101763770B1 KR 101763770 B1 KR101763770 B1 KR 101763770B1 KR 1020150136493 A KR1020150136493 A KR 1020150136493A KR 20150136493 A KR20150136493 A KR 20150136493A KR 101763770 B1 KR101763770 B1 KR 101763770B1
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KR
South Korea
Prior art keywords
wheel
caster
shaft
stopper
reduction gear
Prior art date
Application number
KR1020150136493A
Other languages
Korean (ko)
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KR20170037222A (en
Inventor
이동준
김병호
Original Assignee
주식회사 시디즈
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Application filed by 주식회사 시디즈 filed Critical 주식회사 시디즈
Priority to KR1020150136493A priority Critical patent/KR101763770B1/en
Publication of KR20170037222A publication Critical patent/KR20170037222A/en
Application granted granted Critical
Publication of KR101763770B1 publication Critical patent/KR101763770B1/en

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    • 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
    • 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
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/023—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using friction
    • 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
    • B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors

Abstract

The present invention relates to a deceleration caster apparatus, in which a caster wheel member is provided with a shaft hole in the form of an elongated hole in the longitudinal direction, a reduction gear member mounted on the caster housing member, When the load is applied from the upper side of the caster housing member, the wheel rotating shaft moves upward in the shaft moving hole, and the wheel rotating gear member moves the reduction gear member, The rotation of the caster wheel member is reduced to restrict the movement of the caster wheel member, and it is possible to move the caster wheel member in a short distance, thereby greatly improving the convenience of the user.

Description

[0001] Caster Apparatus having Deceleration Device [0002]

The present invention relates to a deceleration caster apparatus, and more particularly to a deceleration caster apparatus for decelerating a rotation of a wheel under a load.

Generally, the caster device refers to wheels for movement mounted on the legs of a passenger carriage or furniture.

The caster device has a rotating shaft which is vertically protruded on a caster housing rotatably mounted on a floor or floor in contact with the floor or floor, and the rotating shaft is rotatably mounted on a leg or the like of a hand- Or furniture to be freely moved.

As prior art relating to this patent, Korean Patent Laid-Open Publication No. 2003-0012342 entitled " Caster device for chair " (Feb.

The 'caster apparatus for a chair' has guide holes formed on opposite sides thereof so that the rotary shaft 12 of the roller wheels can be slidably moved in the housing main body. Both ends of the guide holes are formed to have a "V & And an elastic spring is connected to the rotation shaft of the roller wheel and the upper portion of the housing main body.

In addition, the 'caster apparatus for a chair' can be moved by the caster apparatus while the user is seated when using the apparatus in a flat position, and the rolling function can be restricted by positioning the roller wheels in the housing main body.

However, even when the user is sitting on a chair, the chair is freely rotated so that the chair is frequently moved even if the chairman does not want to sit on the chair, There is a problem of distracting the attention of the seated person.

In addition, the 'chair caster apparatus' has a problem that the chair is not moved even when the occupant does not want to sit there, and the roller wheel must be positioned in the housing body in order to restrict movement of the chair.

In addition, when the roller wheel is stopped in the housing main body by stopping the rotation of the roller wheel, there is a problem that the movement of the chair is restricted regardless of whether the user is seated. In this case, there is a problem that the wheel must be drawn out from the housing body again to be used again.

Korean Patent Publication No. 2003-0012342 (published on February 12, 2003)

The present invention provides a deceleration caster device that can reduce a rotation of a wheel automatically when a load is applied to restrict movement by a wheel and move a short distance, .

In order to achieve the above-mentioned object, a deceleration caster apparatus according to the present invention comprises: a caster housing member formed with a shaft hole in the shape of an elongated hole in the longitudinal direction and having a caster shaft projected thereon; A caster wheel member having a caster wheel member and a caster wheel member that is coupled to the caster housing member such that the caster wheel member is movable upward and downward through the shaft moving hole of the caster housing member; And when the load is applied from the upper side of the caster housing member, the wheel rotating shaft moves upward in the shaft moving hole to engage the wheel rotating gear member with the reduction gear member .

The deceleration caster apparatus according to the present invention may further include an elastic support member for elastically supporting the wheel rotation shaft.

In the deceleration caster apparatus according to the present invention, the elastic supporting member may be a coil spring or a urethane spring.

The caster housing member according to the present invention includes: a wheel mounting portion having the shaft moving hole formed therein and to which the caster wheel member is mounted; And a wheel cover portion protruding from the upper side of the wheel mounting portion so as to cover a part of an outer circumferential surface of the caster wheel member, wherein the reduction gear member is provided on both side surfaces of the wheel mounting portion, And can be integrally protruded on opposite surfaces of the caster wheel member provided at both ends of the rotary shaft.

The caster housing member according to the present invention includes: a wheel mounting portion having the shaft moving hole formed therein and to which the caster wheel member is mounted; And a wheel cover portion protruding from an upper side of the wheel mounting portion so as to cover a part of an outer circumferential surface of the caster wheel member, wherein the reduction gear member is rotatably mounted on a gear bracket mounted on one side of the wheel mounting portion .

The caster housing member according to the present invention includes: a wheel mounting portion having the shaft moving hole formed therein and to which the caster wheel member is mounted; And a wheel cover portion protruding from an upper side of the wheel mounting portion to cover a portion of an outer circumferential surface of the caster wheel member, wherein the reduction gear member is rotatably mounted on both surfaces of a gear mounting block which is coupled through the wheel mounting portion Can be mounted.

The caster housing member according to the present invention is provided with a wheel moving unit which is opened to the lower side, the shaft moving hole is formed on both sides thereof, and a moving space is formed therein, and the deceleration caster apparatus according to the present invention includes: And an elastic supporting member for elastically supporting the shaft moving body member.

The deceleration caster apparatus according to the present invention may further include a gear stopper member capable of preventing rotation of the reduction gear member or the wheel rotation gear member.

The gear stopper member according to the present invention includes: a stopper moving bar movably coupled to the caster housing member; And a stopper gear coupled to an end of the stopper moving bar and engaged with the reduction gear member or the wheel rotation gear member.

The deceleration caster apparatus according to the present invention may further comprise a separation stopper member for keeping the reduction gear member and the wheel rotation gear member in a separated state in a state where a load is applied from the upper side of the caster housing member.

The caster housing member according to the present invention is provided with a wheel moving unit which is opened to the lower side, the shaft moving hole is formed on both sides and a moving space is formed therein, and the wheel rotating shaft is inserted through and coupled to the wheel moving unit A shaft-moving body member to be engaged; And a resilient supporting member for elastically supporting the shaft moving body member, wherein the separation stopper member is movably coupled through the caster housing member and inserted into the wheel moving portion through the shaft moving hole, And may be a horizontal stopper portion for supporting the shaft moving body member.

The present invention is advantageous in that, when a load is not applied, the wheel freely rotates freely to move, and when a load is applied, the rotation of the wheel is decelerated to restrict movement, .

In particular, the present invention is mounted on a chair to limit the rotation of the wheel by reducing the rotation of the wheel when the user is seated, thereby improving the stability and concentration of the seat occupant and enabling the wheel to rotate even after seating. It is possible to move the seat after the seat is seated, thereby greatly improving the convenience of the user.

1 is an exploded perspective view showing an embodiment of a deceleration caster device of the present invention,
2 is an exploded perspective view showing another example of the deceleration damper member in the deceleration caster apparatus of the present invention,
Figs. 3 and 4 are sectional views showing an operational example of the deceleration caster apparatus of the present invention, Fig.
5 is a sectional view showing another embodiment of the deceleration caster device of the present invention,
6 is a cross-sectional view showing still another embodiment of the deceleration caster device of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

FIG. 1 is an exploded perspective view showing an embodiment of a deceleration caster apparatus of the present invention. Referring to FIG. 1, the deceleration caster apparatus according to the present invention includes a caster housing member 10 ).

The caster housing member 10 has an elongated shaft hole 10b in the longitudinal direction and a wheel rotational shaft 31 of the caster wheel member 30 is rotatably coupled to the shaft moving hole 10b . Here, the wheel rotating shaft 31 is coupled to the shaft moving hole 10b and is movable up and down.

A reduction gear member 20 is rotatably mounted on the caster housing member 10 and a wheel rotation gear member 40 having a larger diameter than the reduction gear member 20 is provided on the caster wheel member 30 do.

When the load is applied from the upper side of the caster housing member 10 and the wheel rotating shaft 31 moves upward in the shaft moving hole 10b, the reduction gear member 20 ).

The wheel rotating gear member 40 rotates together with the caster wheel member 30 to thereby decelerate the caster wheel member 30. [

The deceleration caster apparatus according to the present invention may further include an elastic support member 50 for elastically supporting the wheel rotation shaft 31. [

The elastic support member 50 elastically supports the wheel rotation shaft 31 to remove the load applied to the caster housing member 10, that is, when the load is not applied to the caster housing member 10, So that the rotary gear member 40 is separated from the reduction gear member 20 so as to be maintained in a separated state.

More specifically, the caster housing member 10 includes a wheel mounting portion 11 on which the caster wheel member 30 is mounted, in which the shaft moving hole 10b is formed; And a wheel cover part 12 protruded from the upper side of the wheel mounting part 11 to cover a part of the outer circumferential surface of the caster wheel member 30. [

The wheel mounting part 11 is provided with a wheel moving part 11a which is opened downward and in which the shaft moving hole 10b is formed on both sides and in which a moving space is formed.

The axially moving body member 60 is coupled to the wheel moving part 11a through the wheel rotating shaft 31 and is elastically supported by the elastic supporting member 50 in the wheel moving part 11a. Lt; / RTI >

The elastic support member 50 may be a coil spring or a urethane spring. In addition, the elastic support member 50 elastically supports the wheel rotation shaft 31 and is compressed by a load applied to the upper portion of the caster housing member 10, It is to be understood that any modification that can be made is possible.

The wheel rotating shaft 31 is connected to the shaft moving body member 60 through the shaft moving hole 10b on one side of the wheel moving section 11a and the shaft moving hole 10b, respectively, and the caster wheel member 30 is mounted on both end sides thereof.

The reduction gear member 20 is provided on both side surfaces of the wheel mounting portion 11 and the wheel rotation gear member 40 is mounted on both ends of the wheel rotation shaft 31, Respectively, on the mutually facing surfaces.

Each of the caster wheel members 30 provided at both ends of the wheel rotation shaft 31 includes a wheel rotation gear member 40. The wheel rotation gear member 40 is disposed on both sides of the wheel mounting portion 11 And the two wheels are simultaneously decelerated to be stably operated.

The reduction gear member 20 is rotatably mounted on a gear bracket 13 mounted on one side of the wheel mounting portion 11 and the gear bracket 13 is fixed to the wheel mounting portion 11 by bolts As shown in Fig.

Referring to FIG. 2, the reduction gear member 20 may be rotatably mounted on both sides of a gear mounting block 14 coupled through the wheel mounting portion 11.

3 and 4 are sectional views showing an example of operation of the deceleration caster apparatus of the present invention. Fig. 3 is a sectional view of the deceleration caster according to the present invention in a state in which no load is applied to the upper portion of the caster housing member 10 And FIG. 4 is a sectional view of the deceleration caster according to the present invention in a state in which a load is applied to the upper portion of the caster housing member 10.

Hereinafter, the deceleration caster device of the present invention is mounted on a leg of a chair and is used as an example.

3 (a), the wheel rotating shaft 31 is elastically supported by the elastic supporting member 50 and is positioned on the lower side in the shaft moving hole 10b, do.

3 (b), the wheel rotating gear member 40 provided on the caster wheel member 30 is separated from the reduction gear member 20 and held in a state where they are not engaged with each other.

Therefore, in a state where the user is not seated on the chair, the caster wheel member 30 is smoothly rotated, and the chair can freely move to a position desired by the user.

4 (a), when the user is seated in the chair, that is, when a load is applied to the upper portion of the caster housing member 10, the caster housing member 10 descends, The shaft moving body member 60 ascends and descends while compressing the elastic supporting member 50 and is positioned on the upper side in the shaft moving hole 10b.

Thus, as shown in FIG. 4 (b), the wheel rotating gear member 40 provided on the caster wheel member 30 is engaged with the reduction gear member 20.

Accordingly, when the user is seated in the chair, the rotation of the caster wheel member 30 is reduced and the rotation is partially restricted, so that the movement of the chair is not free, and the stability and concentration of the seated person are improved.

The user can move the caster wheel member 30 to a desired position by rotating the caster wheel member 30 within a short distance because the caster wheel member 30 can not be rotated even after the user is seated.

3, the wheel rotating shaft 31 is elastically supported by the elastic supporting member 50 and is guided to the shaft moving hole 10b by the restoring force of the elastic supporting member 50, And the wheel rotating gear member 40 is separated from the reduction gear member 20 and is not engaged with each other.

FIG. 5 is a cross-sectional view showing another embodiment of the deceleration caster apparatus of the present invention. The deceleration caster apparatus according to the present invention has a structure in which the reduction gear member 20 or the wheel rotating gear member 40 is prevented from rotating And a gear stopper member (70) that can be engaged with the gear.

Here, the gear stopper member 70 includes a stopper moving bar 71 movably coupled to the caster housing member 10; And a stopper gear 72 coupled to an end of the stopper moving bar 71 and engaged with the reduction gear member 20 or the wheel rotating gear member 40.

The stopper moving bar 71 may be movably coupled through the wheel cover portion 12.

The stopper moving bar 71 is screwed to the caster housing member 10 and the end portion is rotatably coupled to the stopper gear 72. [

That is, if the user rotates the stopper moving bar 71 while the user is seated in the chair and the reduction gear member 20 and the wheel rotating gear member 40 are engaged with each other, the stopper moving bar 71 is advanced toward the reduction gear member 20 or the wheel rotation gear member 40 to engage the stopper gear 72 with the reduction gear member 20 or the wheel rotation gear member 40, The rotation of the reduction gear member 20 or the wheel rotating gear member 40 can be prevented.

When the stopper moving bar 71 is rotated in the opposite direction with the stopper gear 72 engaged with the reduction gear member 20 or the wheel rotating gear member 40, And is separated from the reduction gear member 20 or the wheel rotating gear member 40 by being retracted.

6 is a cross-sectional view showing still another embodiment of the deceleration caster apparatus of the present invention. In the deceleration caster apparatus according to the present invention, when the load is applied from the upper side of the caster housing member 10, And a separation stopper member 80 for holding the wheel rotating gear member 40 and the wheel rotating gear member 40 in a separated state.

The separation stopper member 80 includes a horizontal stopper portion 81 which is movably coupled through the caster housing member 10 and inserted into the wheel moving portion 11a through the shaft moving hole 10b As an example.

The lateral stopper portion 81 is movable on the front or rear side of the caster housing member 10 or more specifically through the wheel mounting portion 11 from the front or rear side of the wheel mounting portion 11 And an end portion thereof is inserted into the wheel moving portion 11a through the shaft moving hole 10b to support the shaft moving body member 60. [

The horizontal stopper portion 81 is screwed to the caster housing member 10 and moves forward and backward in the rotating direction. In addition, although not shown, the horizontal stopper portion 81 is moved while compressing the spring, The locking part is fixed to the caster housing member 10 in a state where the locking part is inserted into the wheel moving part 11a through the locking part 10b. When the locking release button is pressed, It can be configured to return to the front side of the wheel moving part 11a or to be deformed into any structure that can be moved back and forth and inserted into the wheel moving part 11a through the shaft moving hole 10b or departed from the wheel moving part 11a .

If the horizontal stopper portion 81 is inserted into the shaft moving hole 10b in a state where the user is not seated in the chair, even if the user is seated on the chair, the shaft moving body member 60 is not hooked and moved, The member 20 and the wheel rotating gear member 40 are kept separated.

The caster wheel member 30 is freely rotatable so that the chair can freely move even when the user is seated in the chair, that is, in a state where a load is applied to the upper portion of the caster housing member 10 Let's do it.

In the present invention, when the load is not applied, the wheel freely rotates freely to move. When the load is applied, the rotation of the wheel is decelerated to restrict the movement.

In particular, the present invention is mounted on a chair to limit the rotation of the wheel by reducing the rotation of the wheel when the user is seated, thereby improving the stability and concentration of the seat occupant and enabling the wheel to rotate even after seating. It is possible to move the seat after sitting, which greatly improves the convenience of the user.

As described above, an optimal embodiment has been disclosed in the drawings and specification. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention, The scope should be determined by the technical idea of the appended claims.

10: caster housing member 10a: caster shaft
10b: shaft moving hole 11: wheel mounting portion
11a: a wheel moving part 12: a wheel cover part
13: Gear bracket 14: Gear mounting block
20: reduction gear member 30: castor wheel member
31: wheel rotating shaft 40: wheel rotating gear member
50: elastic supporting member 60: shaft moving body member
70: gear stopper member 71: stopper moving bar
72: stopper gear 80: separation stopper member
81:

Claims (11)

A caster housing member in which a shaft hole in the shape of an elongated hole in the longitudinal direction is formed and a caster shaft is projected thereon;
A reduction gear member rotatably mounted on the caster housing member;
A caster wheel member having a wheel rotating shaft which is coupled to the caster housing member so as to be movable up and down through an axial movement hole of the caster housing member;
A wheel rotating gear member rotating together with the caster wheel member and having a larger diameter than the reduction gear member;
A gear stopper member capable of preventing rotation of the reduction gear member or the wheel rotation gear member; And
And a separation stopper member for keeping the reduction gear member and the wheel rotation gear member in a separated state in a state in which a load is applied from an upper side of the caster housing member,
Wherein the caster housing member is provided with a wheel moving unit which is opened to the lower side and in which the shaft moving holes are formed on both sides and in which a moving space is formed,
An axially moving body member coupled to the wheel rotating shaft through the through hole and movably coupled within the wheel moving unit; And
And an elastic supporting member for elastically supporting the shaft moving body member,
When a load is applied from the upper side of the caster housing member, the wheel rotating shaft moves upward in the shaft moving hole to rotate the wheel rotating gear member in engagement with the reduction gear member,
The gear stopper member
A stopper moving bar movably coupled to the caster housing member; And
And a stopper gear coupled to an end side of the stopper moving bar and engaged with the reduction gear member or the wheel rotation gear member,
Wherein the separation stopper member is a horizontal stopper portion movably coupled through the caster housing member and inserted into the wheel moving portion through the shaft moving hole to support the shaft moving body member. . delete The method according to claim 1,
Wherein the elastic supporting member is a coil spring or a urethane spring. The method according to claim 1,
The caster housing member
A wheel mounting portion on which the shaft moving hole is formed and on which the caster wheel member is mounted; And
And a wheel cover portion protruding from an upper side of the wheel mounting portion to cover a part of an outer circumferential surface of the caster wheel member,
Wherein the reduction gear member is provided on both side surfaces of the wheel mounting portion and the wheel rotating gear member integrally protrudes on opposite surfaces of the caster wheel member provided at both ends of the wheel rotation shaft, Deceleration caster device. The method according to claim 1,
The caster housing member
A wheel mounting portion on which the shaft moving hole is formed and on which the caster wheel member is mounted; And
And a wheel cover portion protruding from an upper side of the wheel mounting portion to cover a part of an outer circumferential surface of the caster wheel member,
Wherein the reduction gear member is rotatably mounted on a gear bracket mounted on one side of the wheel mounting portion. The method according to claim 1,
The caster housing member
A wheel mounting portion on which the shaft moving hole is formed and on which the caster wheel member is mounted; And
And a wheel cover portion protruding from an upper side of the wheel mounting portion to cover a part of an outer circumferential surface of the caster wheel member,
Wherein the reduction gear member is rotatably mounted on both sides of a gear mounting block which is coupled through the wheel mounting portion. delete delete delete delete delete
KR1020150136493A 2015-09-25 2015-09-25 Caster Apparatus having Deceleration device KR101763770B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150136493A KR101763770B1 (en) 2015-09-25 2015-09-25 Caster Apparatus having Deceleration device

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3074725B1 (en) * 2017-12-13 2020-02-14 Tente Roulettes Polymeres - Bruandet FURNITURE CASTER
CN109649086A (en) * 2019-01-31 2019-04-19 厦门康力特五金制品有限公司 A kind of strap brake structure rises castor
KR102405019B1 (en) * 2019-11-05 2022-06-07 송완수 A caster of chairs
CN111959198B (en) * 2020-08-26 2021-09-10 叶程军 Roller part

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005186920A (en) * 2003-12-05 2005-07-14 Harutake Yo Wheel supporting structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030012342A (en) 2001-07-31 2003-02-12 황주환 A caster assembly for chair

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005186920A (en) * 2003-12-05 2005-07-14 Harutake Yo Wheel supporting structure

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