TWM526961U - Caster - Google Patents

Description

Casters

This creation is about a caster with a brake and orientation function.

The caster, which generally has a brake function, is basically composed of a body and a wheel body pivotally connected to the body. A brake unit is arranged between the body and the wheel body, and the brake unit is driven by The metal plate is pressed against the wheel body, and one end edge of the body is pivotally connected with a pin, and the pin can be assembled to the bottom of the supported frame by the pin, when the frame is prepared to be displaced, The pivoting of the pin and the body can effectively cause the body to drive the wheel body to rotate in a multi-directional manner to smoothly move the frame body, and when the operator moves the frame body to a predetermined position, the brake unit can be pressed. On the wheel body to prevent the wheel from rolling to achieve the effect of braking. This is the case with the casters disclosed in TWM298527.

However, although such a conventional caster can prevent the wheel from rolling, since the pin and the system are still in a mutually pivotable state, when the frame is pushed by an external force, the frame and the pin are caused by the wheel. The contact point between the body and the ground rotates for the axis, which still causes the frame and the pin to still be displaced relative to the ground, and the article placed on the frame is easily shaken or even dropped, and there is a defect that needs to be improved.

Therefore, it is necessary to provide a novel and progressive caster to solve the above problems.

The main purpose of the present invention is to provide a caster. When the caster is in the braking state, the body of the caster is positioned and not pivoted relative to each other, thereby preventing the frame and the pin from rotating relative to the body and causing the frame to be The pins still displaced from the ground.

To achieve the above object, the present invention provides a caster comprising a body, a pin, a brake structure, a directional structure and at least one wheel. The two sides of the first sliding slot are respectively provided with a first sliding slot, and two ends of the first sliding slot respectively define a braking position and a rotating position. The pin includes a post and a positioning member, the post is pivotally disposed on the top, and the positioning member is operably disposed on the post. The brake structure includes at least two pivoting members, at least one connecting member, and a brake blocking member. The pivoting members are axially disposed at least respectively on the two side plates and can be pivoted in a first position and a second position. At least one connecting member is connected to each of the pivoting members, each of the pivoting members is provided with a second sliding slot, and each of the second sliding slot portions overlaps with one of the corresponding first sliding slots, and the braking device is horizontally It is disposed between the two side plates and is movable in a locked position and a release position. The orientation structure includes a first card abutting portion and a second card abutting portion. The first card abutting portion and the second card abutting portion are disposed between the positioning member and the braking block. The at least one wheel body is disposed between the two side plates and is slidably disposed on the corresponding first sliding slots and the second sliding slots, and the axle of the at least one wheel body is slidable to the first sliding slot Between the rotational position and the braking position. Wherein, when the pivot members are in the first position, the at least one wheel body is located at the rotational position without abutting against the brake shoe, the brake shoe is located at the release position, and the at least one wheel body is rotatable and The pin is pivotable relative to the top portion; when the pivoting member is pivoted to the second position, each of the second sliding slot and the first sliding slot slides relative to each other to make the second sliding of each pivoting member The slot pushes the axle of the wheel body to slide to the brake position, so that the at least one wheel body can not rotate against the brake shoe, and the at least one wheel body pushes the brake shoe toward the locked position, the brake The blocking piece abuts against the positioning member to engage the first card abutting portion with the second card abutting portion, so that the pin cannot pivot relative to the top portion.

The structural features of the present invention and the intended effects thereof will be described below by way of a preferred embodiment, but are not intended to limit the scope of the present invention.

Referring to FIGS. 1-9, a preferred embodiment of the present invention is shown. The caster of the present invention comprises a body 2, a pin 3, a brake structure 4, a directional structure and at least one wheel body 5.

The main body 2 includes a top portion 21 and two side panels 22, and the two side panels 22 are disposed at opposite ends of the top portion 21. The two side panels 22 are respectively provided with a first sliding slot 23, and the two ends of the first sliding slot 23 are respectively defined A brake position 231 and a rotational position 232.

The pin 3 includes a post 31 and a positioning member 32. The post 31 is pivotally disposed on the top portion 21, and the positioning member 32 is movably disposed on the post 31. The post 31 is away from the positioning member 32. One end is for transmission to a body (such as a scaffold or cabinet).

The brake structure 4 includes at least two pivoting members 41, at least one connecting member 42 and a brake blocking member 43. The pivoting members 41 are axially at least respectively pivotally disposed on the two side plates 22 and can be pivoted in a first position and In a second position, the at least one connecting member 42 is connected to each of the pivoting members 41 so that the connecting members 42 can be pivoted at the same time. In the embodiment, the casters include two connecting members 42 and four pivoting members. The two connecting members 42 are respectively disposed at two ends of the pivoting member 41 opposite to the body 2. Each of the pivoting members 41 is provided with a second sliding slot 44, and each of the second sliding slots 44 is correspondingly corresponding to the second sliding slot 44. A first sliding slot 23 is overlapped, and the brake blocking piece 43 is horizontally disposed between the two side plates 22 and is movable in a locking position and a releasing position.

The directional structure includes a first abutting portion 33 and a second yoke portion 45. The first yoke portion 33 and the second yoke portion 45 are disposed between the positioning member 32 and the braking block 43. Preferably, one of the first card abutting portion 33 and the second card abutting portion 45 is disposed on the positioning member 32 and the other is disposed on the braking block 43 to have a strong structure. The first card abutting portion 33 is disposed on the positioning member 32 , and the second card abutting portion 45 is disposed on the braking block 43 .

The at least one wheel body 5 is disposed between the two side plates 22 and is slidably disposed on the corresponding first sliding slots 23 and the second sliding slots 44. The axle 51 of the at least one wheel body 5 is slidable. The rotational position 232 of the first chute 23 is between the braking position 231. Preferably, in the embodiment, the caster further includes two spacers 25 and two wheel bodies 5, and the two spacers 25 are disposed between the two side plates 22 and are provided with the first sliding slot 23, one of which is The wheel body 5 is disposed between the side plate 22 and a partition plate 25, and the other wheel body 5 is disposed between the other side plate 22 and a partition plate 25. The two wheel bodies 5 are located in the same axial direction but respectively A plurality of axles 51 are provided. Specifically, the two spacers 25 are located under the positioning member 32. Each of the spacers 25 is recessed with a receiving slot 251. The positioning component 32 is located in the receiving slot 251. The two-wheel body 5 can have a strong supporting force to effectively support the frame body carried by the pin 3, and the wheel axle 51 of the two-wheel body 5 is not easily deformed, and the two wheel bodies 5 are located in the same axial direction but are respectively provided. There are different axles 51, and the two wheel bodies 5 can have different rotation speeds when rolling, so that the turning can be smoother. In the present embodiment, the braking position 231 of each of the first sliding slots 23 is located below the axial direction of the post 31 in the axial direction of each of the wheel bodies 5.

As shown in FIG. 6 and FIG. 7 , when the pivot members 41 are located in the first position, the two-wheel body 5 is located at the rotational position 232 and does not abut against the brake block 43 . The brake block 43 is located at the top. The release position is such that the two-wheel body 5 is rotatable and the pin 3 is pivotable relative to the top portion 21; as shown in FIGS. 8 and 9, when the pivot members 41 are pivoted to the second position, each The second sliding slot 44 and the first sliding slot 23 slide relative to each other, so that the second sliding slot 44 of each pivoting member 41 pushes the axle 51 of the wheel body 5 to the braking position 231, so that the second sliding slot 44 The second wheel body 5 is unable to rotate against the brake shoe 43 , and the two wheel body 5 pushes the brake shoe 43 toward the locking position, and the brake shoe 43 abuts against the positioning member 32 to The first card abutting portion 33 is engaged with the second card abutting portion 45, so that the pin 3 cannot pivot relative to the top portion 21, and the frame body and the pin 3 are prevented from rotating relative to the body 2 to make the frame The body and the pin 3 are still displaced from the ground, so the caster prevents the items placed on the frame from shaking or even falling.

It is to be noted that, in the embodiment, the braking device 43 is inclined obliquely to the outside of the positioning member 32 in the axial direction of the positioning member 32. When the axle 51 of the two-wheel body 5 slides to the braking position 231 and pushes against the braking block 43, the oblique arrangement of the braking member 43 can effectively reduce the lateral stress from the two-wheel body 5, and the braking block 43 is avoided. It is broken by the lateral stress for a long period of time, and the contact area between the brake pad 43 and the two-wheel body 5 is increased to have a larger frictional force, and the rotation of the two-wheel body 5 can be smoothly prevented.

Further, in the embodiment, each of the side plates 22 is further provided with a sliding hole 24, and the braking block 43 is inserted into each of the sliding holes 24, and the braking member 43 is slid along the length of the sliding hole 24. In the locked position and the released position. Preferably, the brake shoe 43 is further provided with at least one limiting member 431. The at least one limiting member 431 is laterally inserted into the braking member 43. In the embodiment, the braking member 43 is provided with two. The limiting member 431 is disposed on the inner side of the two side plates 22, and the two side plates 22 are viewed from the opening direction of the sliding hole 24, and each of the limiting members 431 is coupled to the same. The side plates 22 interfere with each other such that the brake shoes 43 can slide over the sliding holes 24 without disengaging from the two side plates 22.

Specifically, in the embodiment, the positioning member 32 is located between the two side plates 22, the positioning member 32 is a disk body, and the first card abutting portion 33 includes a radial ring disposed on one of the positioning members 32. a tooth portion 331, the second tooth portion 45 includes a second tooth portion 451 disposed at one end of the brake shoe 43. When the brake shoe 43 is in the locked position, the first tooth portion 331 is coupled to the second tooth portion 331. The second tooth portion 451 is engaged to effectively prevent the toothed disc and the post 31 from rotating relative to the body 2, and the positioning member 32 can be engaged with the braking block 43 at any angle. In other embodiments, The first card abutting portion and the second card abutting portion may be in a manner of contact friction so that the toothed disk cannot rotate relative to the body 2.

In addition, a convex portion 61 is disposed on a side surface of at least one of the two side plates 22 and the two partition plates 25, and at least one of the pivot members 41 is provided with a concave portion 62 opposite to the side of the convex portion 61. When the pendulum 41 is in the second position, each of the protrusions 61 is engaged with the recess 62 to prevent the pivot members 41 from being detached from the second position, so that the two wheel bodies 5 cannot be undone against the brake pad. 43.

Preferably, each of the first chutes 23 is a linear trough extending in a horizontal direction. The braking position 231 and the rotating position 232 of each of the first chutes 23 respectively form a flared section 233 which is slightly bent upward. The flared section 233 can cause the axle 51 of the two-wheel body 5 to slide slightly upward when the axle 51 is located at the braking position 231 to be engaged with the flared section 233. The two-wheel body 5 can more closely abut the The brake shoe 43 is biased against the positioning member 32.

In this embodiment, each of the second sliding slots 44 is S-shaped, and each end of each of the second sliding slots 44 is formed with a narrowing section 441, wherein the axles 51 of the respective wheel bodies 5 are in the second sliding slot After sliding into the constricted section 441, the bent portion of the constricted section 441 can withstand the axle 51 of the wheel body 5 to prevent the axle 51 of the wheel body 5 from sliding freely from the first chute 23 The brake position 231 or the rotational position 232 is released.

In summary, the caster of the present invention, when the caster is in the state of braking, the body of the caster is positioned and not pivoted relative to each other, thereby preventing the frame and the pin from rotating relative to the body and causing the frame and the pin It still shifts with the ground, so it prevents the items placed on the frame from shaking or even falling.

2‧‧‧ Ontology
3‧‧‧ pins
4‧‧‧煞车结构
5‧‧‧ wheel body
21‧‧‧ top
22‧‧‧ side panels
23‧‧‧First chute
24‧‧ ‧Slide hole
25‧‧‧ spacer
231‧‧‧ brake position
232‧‧‧Rotate position
233‧‧‧ flare section
251‧‧‧ accommodating slots
31‧‧‧Post
32‧‧‧ Positioning parts
33‧‧‧First card arrival
331‧‧‧First tooth
41‧‧‧ pivoting pieces
42‧‧‧Connecting parts
43‧‧‧煞车挡片
44‧‧‧Second chute
45‧‧‧Second card arrival
431‧‧‧Limited parts
441‧‧‧neck section
451‧‧‧second tooth
51‧‧‧Axle
61‧‧‧ convex
62‧‧‧ recess

1 to 3 are perspective views of a preferred embodiment of the present invention. 4 and 5 are exploded views of a preferred embodiment of the present invention. Figure 6 is a side elevational view of the operation of a preferred embodiment of the present invention. Figure 7 is a partial enlarged view of Figure 6. Figure 8 is a side elevational view of another operation of a preferred embodiment of the present invention. Figure 9 is a partial enlarged view of Figure 8.

2‧‧‧ Ontology

3‧‧‧ pins

4‧‧‧煞车结构

5‧‧‧ wheel body

21‧‧‧ top

22‧‧‧ side panels

31‧‧‧Post

32‧‧‧ Positioning parts

41‧‧‧ pivoting pieces

42‧‧‧Connecting parts

43‧‧‧煞车挡片

Claims (10)

A caster includes: a body, a top and a second side plate, wherein the two side plates are disposed at opposite ends of the top, the two side plates are respectively provided with a first sliding slot, and the two ends of the first sliding slot respectively define a brake a position and a rotational position; a pin comprising a post and a positioning member, the post is pivotally disposed on the top, the positioning member is movably disposed on the post; a brake structure, including at least two pivot members, At least one connecting member and a brake blocking piece, the pivoting members are axially at least respectively pivotally disposed on the two side plates and can be pivoted in a first position and a second position, wherein the at least one connecting member is connected to each of the two a pivoting member, each of the pivoting members is provided with a second sliding slot, each of the second sliding slot portions overlapping with a corresponding one of the first sliding slots, and the braking device is disposed transversely between the two side plates, and The first card abutting portion and the second card abutting portion are disposed on the positioning member and the second card abutting portion and the second card abutting portion are disposed in the locking position and the releasing position. Between the brake pads; at least one wheel body, disposed between the two side plates, Sliding in the corresponding first chute and the second chute, the axle of the at least one wheel body is slidable between the rotational position of the first chute and the braking position; wherein, when When the isometric member is in the first position, the at least one wheel body is located at the rotating position without abutting against the brake shoe, the brake shoe is located at the release position, so that the at least one wheel body is rotatable and the pin is Pivoting relative to the top portion; when the pivoting members are pivoted to the second position, each of the second sliding slots and the first sliding slot slides relative to each other such that the second sliding slot of each pivoting member The axle of the wheel body is pushed and slid to the brake position, so that the at least one wheel body can not be rotated against the brake shoe, and the at least one wheel body pushes the brake shoe toward the locking position, and the brake block is facing The positioning member abuts against the first card abutting portion and the second card abutting portion, so that the pin cannot pivot relative to the top portion. The caster of claim 1, wherein the brake shoe is oblique to the axial direction of the post. The caster of claim 2, wherein one of the first abutting portion and the second abutting portion is disposed on the positioning member, and the other is disposed on the brake blocking piece, the braking device is away from the positioning member One end is tilted outwards. The caster according to claim 2, wherein each of the side plates is further provided with a sliding hole, and the braking device is inserted into each of the sliding holes, and the braking device slides along the length of the sliding hole in the locking position and The release position. The caster of claim 4, wherein the brake block is further provided with at least one limiting member, wherein the at least one limiting member is laterally inserted into the brake blocking piece, and is viewed from the opening direction of the sliding hole. The limiting member interferes with a side panel. The caster of claim 2, wherein the positioning member is located between the two side plates, the positioning member is a disk body, and the first locking portion includes a radial ring disposed on one of the first tooth portions of the positioning member. The second latching portion includes a second tooth portion disposed at one end of the brake shoe, and the first tooth portion is engaged with the second tooth portion when the brake shoe is in the locked position. The caster of claim 2, further comprising two spacers and two wheel bodies, the two spacers being disposed between the two side plates and provided with the first sliding slot, wherein one of the wheel bodies is disposed on the side plate Another wheel body is disposed between the other side plate and a partition plate, and the two wheel bodies are located in the same axial direction but respectively provided with different axles. The caster of claim 7, wherein a side of one of the two side panels and at least one of the two spacers is provided with a convex portion, and at least one of the pivot members is provided with a recess with respect to a side of the convex portion. When the isometric member is in the second position, each of the protrusions is engaged with the recess. The caster according to claim 2, comprising two connecting members, the two connecting members are respectively disposed on the two ends of the pivoting member opposite to the body, and the first sliding portion is viewed from the axial direction of each of the wheel bodies. The brake position of the slot is located below the axial direction of the post. The caster according to claim 2, wherein each of the first chutes is a linear trough extending in a horizontal direction, and the braking position and the rotating position of each of the first chutes respectively form a slightly upwardly bent flaring Each of the second sliding slots is S-shaped, and each of the two sliding slots is formed with a narrowing portion.