KR101520843B1 - Transport wheels for Carts - Google Patents

Abstract

The present invention relates to a transport wheel for carts which can easily be moved, installed on the lower of carrying devices such as a carrying wagon and a carrying cart, and more specifically, relates to wheels for carts, which include wheels installed at the bottom of the support frame to allow rotation thereof by a rotary shaft, and a plurality of stoppers which are formed on stop holes provided at a specific bottom portion of the support frame and control driving force of the wheel. The wheels additionally include a plurality of rib grooves corresponding to the stoppers. The stoppers are inserted into the rib grooves and control the driving force of the wheels. Accordingly, the transport wheel for carts according to the present invention provides the effects of affordable cost, easy repair and replacement upon failure of the stopper and excellent braking for the driving force of the wheel, whereby the stopper can easily enter and get out of the rib groove formed on the wheel.

Description

Transport wheels for Carts

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel installed at a lower portion of a transportation mechanism such as a cart or a carrier to facilitate movement of the wheel, And a plurality of stoppers provided in a plurality of stop holes provided in the stopper and controlling the driving force of the wheels, wherein the wheels further comprise a plurality of rib grooves corresponding to the plurality of stoppers, Is inserted into the rib groove to control the driving force of the wheel.

Generally, a wheel is installed at a lower portion of a transportation mechanism for easily moving an object by a carrying device such as a chair or a cart, a cart, etc., and a wheel is installed at the lower part of various mechanical devices.

A stopper or a brake is mounted on the wheel installed to stop the transportation or the mechanical equipment so that the wheel can not be rolled so that the carrier or the machine can be stably stopped.

In addition, a stopper or a brake used for stably stopping the transporting device or the mechanical equipment is fixed to the support frame or the bracket that houses the wheel so as not to interfere with the driving of the wheel when the transportation device or the mechanical equipment is moved, In case of stopping, it has been designed to surround the rotation axis of the wheel or a certain portion of the wheel so as to control the driving of the wheel.

However, a wheel equipped with a stopper or a brake is more expensive than a wheel not equipped with a stopper or a brake, and the method of controlling the driving of the wheel by closely contacting the surface of the wheel is heavy or sloping slope The method of controlling the driving of the wheels by braking the rotation axis of the wheel is not effective in that the wheels can not be rolled or braked if the components fail, And the driving force of the wheels can not be controlled due to foreign matter adhering to the rotating shaft of the wheel.

For example, Korean Patent Laid-Open Publication No. 10-2005-0006728 discloses a yoke frame in which an attachment bolt and a bearing support portion are attached to each leg of various kinds of products such as a piano, a chair, a movable bed, a cart, Wherein the upper surface and the left / right side surface are integrally formed as one side of the yoke frame so as to surround the opposite outer surface of the yoke frame, An elastic braking piece is integrally formed at the rear end of each of the left and right side surfaces so as to integrally protrude rearward in parallel to the both side brackets And a pair of brackets fixed on both sides of the bracket so as to be rotatable And a bearing portion for holding the above-described resilient pressing cycle the elastic braking piece, is a push plate configured port operation is integrally formed.

That is, since the pressing plate is pressed against the surface of the rolling wheel by pressing the pressing plate, the rolling motion of the rolling wheel is stopped, so that the braking force is not substantially increased and the wheel is rolled even if the wheel is braked.

As another example, Korean Patent No. 10-1057244 discloses a golf club having a bracket coupled to a wheel shaft of a rolling wheel and having a guide hole on one side thereof and a wheel shaft of a rolling wheel coupled to the bracket, A locking key formed by a stopper wheel formed with a stop gear protrusion and a locking bolt penetratingly connected to a guide hole of the bracket and positioned between the bracket and the rolling wheel and having a locking piece corresponding to the stop gear protrusion of the stopper wheel formed at a lower end thereof, And a locking part for locking and unlocking the locking key by vertically moving the fastening bolt connected to the roll knocking key so as to move up and down the locking key .

That is, the braking force is generated by the stopper wheel connected to the stopper wheel of the rolling wheel, so that the rolling operation of the rolling wheel can be stopped by the stopper motion of the stopper wheel, and the locking and unlocking operations of the locking key and the stopper wheel However, as described above, if foreign matter is caught between the locking key and the stopper wheel, or when the locking key or the stopper wheel breaks down, it is not easy to repair and inconvenience of replacing the entire rolling wheel is required Respectively.

Korean Patent No. 10-1057244 Korean Patent Publication No. 10-2005-0006728

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems in the prior art, and it is an object of the present invention to provide a wheel- It is a main object of the present invention to provide a solution point to the problem that the replacement is not easy.

In order to realize the above-described object, the present invention provides a wheel supporting apparatus comprising: a wheel provided at a lower end of a support frame so as to be rotatable by a rotation shaft; and a plurality of stop holes provided at a predetermined portion of a lower end of the support frame, Wherein the wheel further comprises a plurality of rib grooves corresponding to the plurality of stoppers, and the stopper is inserted into the rib groove to control the driving force of the wheel Present the wheels for the carriage.

The carriage wheel according to the present invention as described above allows the stopper to be easily inserted into and out of the rib groove formed in the wheel so that the cost can be reduced and the stopper can be easily repaired and replaced when the stopper is broken, It is possible to obtain an excellent effect of the braking force on the driving force of the vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a wheelbarrow according to a preferred embodiment of the present invention; Fig.
2 is a side view of a wheel for a carrier according to a preferred embodiment of the present invention;
3 is a partial cross-sectional view of a stopper of a wheel for a carrier according to a preferred embodiment of the present invention taken out from a rib groove.
FIG. 4 is a partial cross-sectional view of a stopper of a wheel for a carrier according to a preferred embodiment of the present invention taken in a groove of a rib; FIG.
5 is a partially exploded cross-sectional view of a wheel for a carrier according to a preferred embodiment of the present invention.
FIG. 6 is a side view of a wheel of a wheelbarrow according to a preferred embodiment of the present invention. FIG.
7 is a sectional view of a stopper of a wheel for a carrier according to another embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wheel installed at a lower portion of a transportation device such as a transportation wagon or a transportation bogie to make it easy to move, will be.

More specifically, the present invention relates to an apparatus and a method for manufacturing the same, which comprises a wheel 20 installed at a lower end of a support frame 10 to be rotatable by a rotation shaft 22 and a plurality of stop holes 16 provided at a certain lower end of the support frame 10 And a plurality of stoppers 30 installed to control the driving force of the wheels 20. The wheels 20 include a plurality of rib grooves 24 corresponding to the plurality of stoppers 30, Wherein the stopper (30) is inserted into the rib groove (24) to control a driving force of the wheel (20).

The stopper 30 is installed through the stop hole 16 provided in the support frame 10 and has a first locking protrusion 34, a second locking protrusion 36 and a third locking protrusion 38 And is introduced into and discharged from the rib groove 24.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

The support frame (10) of the present invention

In general, the wheel 20 is accommodated therein, and the bearing 10 and the rotary shaft 22 are used to stably support the wheel 10, and the connection shaft 12 and the carrier bogie 1, the support frame 10 is fixedly connected to the other side of the connection shaft 12 to which one side is fixedly coupled to the carrier, and a part of the wheel 20 is fixed A rotating shaft 22 and a wheel receiving portion 14 fastened by a bearing are integrally formed at a certain portion of the outer circumferential portion so that the wheel 20 can be stably rotated.

A plurality of stop holes 16 may be formed in a predetermined portion of the lower end of the support frame 10 so as to penetrate through the stopper 30 to be described below. That is, a plurality of the stop holes 16 are provided at a predetermined lower portion of the wheel receiving portion 14 so as to penetrate the stopper 30 in correspondence with the number of the stop holes 16.

In addition, since the size of the support frame 10 according to the present invention varies depending on the size and weight of the carrier, the size of the support frame 10 can be changed without departing from the gist of the present invention. And the material may also be used by using a synthetic resin widely used in the past, so a detailed description will be omitted.

The number of the stop holes 16 of the present invention may be provided so that the stopper 30 can stably control the driving force of the wheel 10. In the present invention, So that the user can easily control the driving force of the wheel 10. [0064]

In association with the above, it is preferable that the length of the stopper 30, which will be described later, can be adjusted by projecting the outer periphery of one side of the stop hole 16 to adjust the length of the hollow.

The wheels 20 of the present invention

And is rotatably supported by a rotary shaft 22 and a bearing at the lower end of the support frame 10 and is configured to surround a cover made of rubber or synthetic resin on the outer circumferential surface of the wheel frame 28 like a general wheel 10, The stopper 30 is inserted into and out of the frame 20 by a plurality of ribs 26 protruding from both sides of the frame 28, A plurality of rib grooves 24 for controlling the driving force are formed.

6, a cover (not shown) is wrapped around the outer circumferential surface of the wheel frame 28, and a plurality of ribs 26 are formed on both sides of the rib 26, The rib groove 28 is formed.

Also, the number and shape of the ribs 26 have at least one number to form at least one rib groove 24, and the ribs 26 are hooked to the stopper 30 to be described below, It is preferable to have a shape extending from the center of the side surface of the wheel frame 28 to the four sides in order to control the driving force of the wheels.

The stopper (30) of the present invention

A first locking protrusion 34 which is provided to penetrate through the stop hole 16 of the wheel receiving portion 14 and is not caught by the outer side surface of the stop hole 16 and is not drawn out to the outside, A second locking protrusion 36 which is hooked on the other outer side surface of the support frame 10 so as not to be fully inserted into the inside of the wheel receiving portion 14, When the wheel 10 is driven to move the carrier as shown in FIGS. 3 to 4, the first locking protrusion 34 and the second locking protrusion 38 The stopper 30 is drawn out to the outside of the support frame 10, that is, the wheel receiving portion 14 by the third locking protrusion 38, and the drive of the wheel 10 is controlled to fix the carrier A predetermined length is drawn into the support frame 10, that is, the wheel receiving portion 14 by the third locking protrusion 38 and the second locking protrusion 36, So that the driving force of the wheel 10 is controlled.

The stopper 30 of the present invention is made of a material such as a synthetic resin having elasticity. The first, second and third locking projections 34, 36, and 38 and the stopper 30 may have elasticity, The second and third locking projections 34, 36 and 38 may have elasticity.

When the stopper 30 is made of a material having elasticity, when the stopper 30 is worn or damaged, the stopper 30 is removed from the stop hole 16, The stopper 30 can be pulled into and out of the rib groove 24 through the stop hole 16 when the third locking protrusion 38 is made of a reel having elasticity, It is preferable that the entire configuration of the stopper 30 is made of a material having elasticity.

As another example of the stopper 30 of the present invention, when a material other than an elastic material is used to increase the strength of the stopper 30, as shown in FIG. 7, Even if the stopper 30 is not elastic, it is compressed inside the elastic groove 40 when the stopper 30 is pulled out by the elastic groove 40, So that the effect of achieving the object of the present invention can be realized.

6, the distance between the first, second and third engaging protrusions 34, 36, 38 of the stopper 30 is larger than the distance between the first engaging protrusion 34 and the third engaging protrusion 38, The distance 'a' between the third stopper protrusion 38 and the second stopper protrusion 36 corresponds to the length of the stopper hole 16 and the distance 'b' between the third stopper protrusion 38 and the second stopper protrusion 36 corresponds to the length of the stopper hole 16 , And the distance 'a' and the distance 'b' are preferably the same length.

That is, the distance 'a' between the first locking protrusion 34 and the third locking protrusion 38, the distance 'b' between the third locking protrusion 38 and the second locking protrusion 36, The stopper 30 is stably pulled in and out of the rib groove 24 because the lengths of the holes 16 and 16 are the same and the lengths of the lengths a, b and c 'are the same.

It is preferable that the shape of the stopper 30 has a shape corresponding to the stop hole 16 and that the shape of the first stopper protrusion 34 is such that the stopper 30 is located on the outer side surface of the stop hole 16 And the shape of the second locking protrusion 36 is not limited to any shape so as to be caught by the other outer side surface of the stop hole 16 so as not to be completely drawn into the inside of the stop hole 16. [ , It is preferable that the surface of the stop hole 16, which is hooked on the outer surface of the stop hole 16, is at right angles as in the embodiment of the present invention.

The shape of the third locking protrusion 38 is preferably a '∧' shape or a '∩' shape in which the stopper 30 can pass through the stop hole 16 to be drawn in and out, It is preferable that the stopper 30 is formed integrally with the outer periphery of the stopper 30 in the form of a semicircle as shown in Fig.

In addition, it is preferable that the stopper 30 is further provided with a ring 32 at a predetermined portion of the stopper 30 so that the user can easily take out the stopper 30.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent that various changes can be made in the present invention.

10: support frame 12: connection shaft
14: wheel receiving portion 16: stop hole
20: Wheel 22:
24: rib groove 26: rib
28: Wheel frame 30: Stopper
32: collar 34: first stopping projection
36: second locking projection 38: third locking projection
40: Elastic groove

Claims (4)

A wheel 20 rotatably mounted on the lower end of the support frame 10 by a rotation shaft 22;
And a plurality of stoppers (30) provided in a plurality of stop holes (16) provided at a certain lower portion of the support frame (10) and controlling driving force of the wheels (20)
The wheel 20 further includes a plurality of rib grooves 24 corresponding to the plurality of stoppers 30,
Wherein the stopper (30) is inserted into the rib groove (24) to control the driving force of the wheel (20)
The stopper 30
A first locking protrusion 34 which is received through the stop hole 16 and which is caught by an outer side surface of the stop hole 16 so as not to be led out to the outside, A second locking protrusion 36 for preventing the locking protrusion 36 from being fully inserted into the support frame 10 and a third locking protrusion 38 for fixing the locking protrusion 38 to the stop hole 16 when the locking protrusion is inserted into / Wherein the wheel comprises a plurality of wheels.
The method according to claim 1,
The wheels 20
Further comprising a plurality of ribs (26) protruding from both sides of the wheel frame (28), wherein a rib groove (24) is formed by the plurality of ribs (26).
delete The method according to claim 1,
The stopper 30
The distance a between the first locking projection 34 and the third locking projection 38 and the distance b between the third locking projection 38 and the second locking projection 36 and the distance b between the stop hole 16 ) And the length (c) of the hollow are the same.

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