TWM559815U - Caster orientation and brake device - Google Patents

Abstract

The present invention provides a caster orientation and brake device, which is disposed on a mobile vehicle, the mobile vehicle includes a wheel body, and the creation includes a tripod, a directional disc body, an operation portion and an elastic cushion body; the tripod is pivoted on the mobile load The wheel body is pivoted on the tripod, and the tripod has a limiting hole; the directional disk body is disposed on the moving carrier and is provided with a first positioning portion; the operating part comprises a supporting rod body, an orientation and braking unit and an operating unit, and the supporting rod The body is disposed on the tripod, and the orientation and brake unit is pivoted on the support rod body. The orientation and brake unit has a second positioning portion, a positioning groove, a brake portion and an abutting elastic piece, and the operation unit has an operation plate body, a positioning plate body and a limit position. The plate body, the positioning plate body abuts against the foot frame and the positioning groove, the limiting plate body penetrates the limiting hole, and the elastic pad body is disposed between the orientation and the brake unit and the operating unit. Thereby, the creation can achieve the purpose of orientation and braking of the casters through a single operation.

Description

Caster orientation and brake device

This creation relates to the orientation and braking device of a caster, and more particularly to a person who can achieve the orientation and brake of the caster through a single operation.

The locking device of the caster is a fixing device applied to a moving vehicle such as a tool cart, a mobile drawer or a trolley. When the mobile carrier needs to be fixed, the locking device of the existing caster hinders the rotation by rubbing specific parts with the caster. Or directly lock the axle so that it cannot rotate.

However, such designs are still missing in practical use because, in addition to moving forward and backward, such moving carriers can also rotate their casters in a vertical axis to enable the mobile vehicle to steer. Therefore, the conventional locking method can lock the forward and backward movement, but lacks the locking mechanism of self-rotation in the vertical axis.

Since the vehicle such as the tool cart often has only a single caster equipped with the above locking device, and because the lock of the caster is not obvious, the user often does not notice that the mobile vehicle has been locked. Under this condition, the user will turn the mobile vehicle while turning No obvious resistance is felt. When the steering is completed and the vehicle is to be pushed forward, since the horizontal axial rotation has been locked, the carrier side is tilted forward due to inertia and thrust.

In view of the inadequacy of the conventional locking method, the present invention proposes a caster orientation and braking device that can achieve the orientation and braking of the caster through a single operation, thereby reliably securing the mobile carrier.

According to one of the purposes of the present invention, an orientation and braking device for a caster is provided for a mobile vehicle, the mobile vehicle includes a wheel body, and the orientation and braking device of the caster includes: a tripod, which is pivoted In the mobile carrier, the wheel body is pivotally disposed on the tripod, the trip frame has a limiting hole, the limiting hole has opposite abutting sides, and the abutting sides are located at different heights; The body is disposed on the moving carrier, the stand is rotated relative to the directional disk body, the directional disk body has a plurality of first positioning portions, and an operating portion includes: a supporting rod body disposed on the stand a fixed direction and a brake unit, the opposite sides of the brake unit are pivotally disposed on the support rod body, and one side of the orientation and brake unit has at least one second positioning portion corresponding to one of the first positioning portions The other side of the orientation and the brake unit has at least one positioning groove and a brake portion. The positioning groove is located between the abutting sides, the braking portion corresponds to the wheel body, and the orientation and the braking unit are opposite to each other. There is a topping elastic between the two sides, the topping And the operating unit has an operating plate body on one side and a positioning plate body and a limiting plate body connected to each other on the other side, and the operating plate body is connected to the positioning plate body In a V shape, the opposite sides of the positioning plate body respectively abut against one of the abutting sides and the positioning groove, and the limiting plate body penetrates the limiting hole to abut the abutting One of the sides; and an elastic pad body having a receiving groove at the top and a positioning protrusion at the bottom, the positioning and the opposite side of the brake unit having a positioning hole, the operation plate body and the positioning plate The connection of the body is disposed in the receiving slot, and the positioning protrusion is disposed in the positioning hole.

In this way, the orientation and braking device of the caster of the present invention can not only lock the wheel body by the orientation of the wheel body but also the steering wheel body in the vertical direction, and further indirectly lock the tripod by the orientation of the wheel body in the vertical direction. The wheel body set on the tripod cannot swing around the vertical axis, achieving the effect of double locking.

In an embodiment of the present invention, the first positioning portions are respectively a positioning groove to be annularly disposed on the directional disk body, and the second positioning portion is a positioning protrusion to correspond to one of the positioning grooves. .

In an embodiment of the present invention, a first annular ball set is further disposed between the stand and the mobile carrier.

In an embodiment of the present invention, a dustproof gasket is further disposed between the tripod and the moving carrier, and the dustproof gasket is disposed outside the first annular ball set.

In an embodiment of the present invention, a second annular ball set is further disposed between the stand and the directional disk.

Thereby, the orientation and braking device of the caster of the present invention can achieve the orientation and braking of the caster through a single operation.

In order to fully understand the purpose, features and effects of this creation, the following specific examples, together with the attached drawings, provide a detailed description of the creation, as explained below:

Please refer to FIG. 1 to FIG. 6 . As shown in the figure, the present invention provides a caster orientation and brake device 100 for mounting on a fixed carrier C of a mobile carrier, the mobile carrier including a wheel body W. The caster orientation and brake device 100 includes a tripod 200, a fixed disc body 300 and an operating portion 400. The tripod 200 can be U-shaped. The top of the tripod 200 can have a pivot hole 260. The tripod 200 can be pivoted to the mobile carrier via the pivot hole 260 and a center rivet R. The wheel W can be pivoted to the stand 200 via a screw 220, a nut 230 and two opposite pivoting holes 240 of the stand 200. The top of the stand 200 can extend rearward and have A limiting hole 210 having two abutting sides 211 facing forward and backward, the height of the abutting side 211 at the front is higher than the height of the abutting side 211 at the rear. The directional disk body 300 can be circular and can be fixed to the fixed seat C of the moving carrier via the center rivet R. The stand 200 rotates relative to the directional disk body 300. The bottom of the directional disk body 300 has a plurality of The first positioning portion 310. The operating portion 400 includes a supporting rod body 410, a fixed direction and brake unit 420, and an operating unit 430. The support rod body 410 is disposed on the two fixing holes 250 of the tripod 200 opposite to each other. The directional and braking unit 420 can be a metal elastic piece. The pivoting hole 426 between the two opposite sides of the directional and braking unit 420 is pivotally disposed on the supporting rod body 410. The orientation and the front of the braking unit 420 are The side has at least one second positioning portion 421 corresponding to one of the first positioning portions 310. The rear side of the orientation and braking unit 420 has at least one positioning slot 422 and a braking portion 423. The positioning slot 422 is located at the rear. Between the abutting sides 211, the braking portion 423 can be an L-shaped plate body corresponding to the wheel body W. The orientation and the two opposite sides of the braking unit 420 have an abutting elastic piece 424 between the two sides. The top elastic piece 424 abuts against the top of the inner side of the stand 200. The rear side of the operating unit 430 has an operating plate body 431. The front side has a positioning plate body 432 and a limiting plate body 433 connected to each other. The operating plate body 431 is connected to the positioning plate body 432 to form a V. The limiting plate body 433 can be formed in an L shape, and the two opposite sides of the positioning plate body 432 respectively abut against one of the abutting sides 211 and the positioning groove 422, and the limiting plate body 433 is worn. The limiting hole 210 is incident on one of the abutting sides 211.

Please refer to FIG. 4 and FIG. 5 . As shown in the figure, before the orientation of the caster and the brake device 100 are operated, the positioning plate body 432 and the limiting plate body 433 of the operating unit 430 abut against the limiting hole 210 . Located near the front abutting side 211. At this time, the second positioning portion 421 of the orientation and braking unit 420 is not engaged with one of the first positioning portions 310 of the orientation disk body 300, and the braking portion 423 of the orientation and braking unit 420 is not in contact with the brake portion 423. Wheel W. Referring to FIG. 4 and FIG. 6 , as shown in the figure, after the orientation of the caster of the present invention and the brake device 100 are operated, the operation panel 431 of the operation unit 430 is pressed down by the user, and the positioning plate body 432 of the operation unit 430 is 432. And the limiting plate body 433 abuts against the vicinity of the abutting side 211 in the limiting hole 210. At this time, since the height of the abutting side 211 at the rear is lower than the height of the abutting side 211 located at the front, the positioning plate body 432 of the operating unit 430 presses the orientation and the braking portion 423 of the brake unit 420 to contact. The wheel body W, and the second positioning portion 421 of the orientation and braking unit 420 is lifted up to engage with one of the first positioning portions 310 of the directional disk body 300, thereby enabling the caster of the present invention. The orientation and brake device 100 achieves the orientation and braking of the casters via a single operation. In addition, if the orientation and the brake of the caster are to be released, the user can lift the orientation of the caster of the operation unit 430 and the brake device 100 to the released state of FIGS. 4 and 5 as long as the user lifts the operation panel 431 of the operation unit 430.

Therefore, the orientation and brake device 100 of the caster of the present invention can be rotated by the rotation of the wheel body W by the brake portion 423 of the orientation and brake unit 420, and can be further rotated by the orientation disk 300 and the orientation and The second positioning portion 421 of the brake unit 420 indirectly locks the stand 200, so that the wheel body W pivoted on the stand 200 cannot rotate around the vertical axis of the caster, thereby achieving double locking effect.

Referring to FIG. 1 and FIG. 4 to FIG. 6 , as shown in the figure, in an embodiment of the present invention, an elastic pad body 440 may be further included, which may be a triangular cylinder, and the top of the elastic pad body 440 has a capacity. The slot 441 has a positioning protrusion 442 at the bottom, and a positioning hole 425 is defined in the rear side of the directional and brake unit 420. The connection between the operation board 431 and the positioning board 432 is disposed in the accommodating slot 441. The positioning protrusion 442 is disposed in the positioning hole 425. Thereby, the elastic pad body 440 can buffer the orientation and the pressure between the brake unit 420 and the operating unit 430, and can respond to the wheel W of different hardness.

Referring to FIG. 5 and FIG. 6 , in the embodiment of the present invention, the first positioning portions 310 can be respectively disposed in a positioning groove to be disposed on the directional disk body 300 , and the second positioning portion The 421 can be a positioning tab to correspond to one of the positioning grooves. Thereby, the orientation of the caster of the present invention and the brake device 100 can be easily oriented.

Referring to FIG. 1 and FIG. 4 , as shown in the figure, in an embodiment of the present invention, a first annular ball set 500 is further disposed on the stand 200 and the fixed seat C of the mobile carrier. between. Thereby, the stand 200 can be easily rotated relative to the fixed seat C of the moving carrier.

Referring to FIG. 1 and FIG. 4 , as shown in the figure, in an embodiment of the present invention, a dustproof gasket 600 may be further disposed between the stand 200 and the fixed seat C of the moving carrier. The dustproof gasket 600 is disposed outside the first annular ball set 500. Thereby, the dustproof gasket 600 prevents foreign matter from intruding into the first annular ball set 500.

Referring to FIG. 1 and FIG. 4 , as shown in the figure, in an embodiment of the present invention, a second annular ball set 700 is further disposed between the stand 200 and the directional disk 300 . Thereby, the stand 200 can be easily rotated relative to the directional disk 300.

The present invention has been disclosed in the above preferred embodiments, and it should be understood by those skilled in the art that the present invention is only intended to depict the present invention and should not be construed as limiting the scope of the present invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of this creation is subject to the definition of the scope of patent application.

100‧‧‧ Caster orientation and brakes
200‧‧ ‧ tripod
210‧‧‧Limited holes
211‧‧‧Abutment side
220‧‧‧ screws
230‧‧‧ nuts
240‧‧‧Pivot hole
250‧‧‧Fixed holes
260‧‧‧ pivot hole
300‧‧‧Director disk
310‧‧‧First Positioning Department
400‧‧‧Operation Department
410‧‧‧Support rod body
420‧‧‧Direction and brake unit
421‧‧‧Second Positioning Department
422‧‧‧ positioning slot
423‧‧‧ brakes
424‧‧‧Reaching shrapnel
425‧‧‧Positioning holes
426‧‧‧Pivot hole
430‧‧‧Operating unit
431‧‧‧Operation panel
432‧‧‧ positioning plate
433‧‧‧Limited plate
440‧‧‧elastic body
441‧‧‧ accommodating slots
442‧‧‧ positioning convex
500‧‧‧First ring ball set
600‧‧‧dust washer
700‧‧‧Second circular ball set
C‧‧‧ fixed seat
R‧‧‧ center rivet
W‧‧‧ wheel body

1 is an exploded perspective view of the orientation and braking device of the caster according to a preferred embodiment of the present invention.

2 is a schematic view showing the combination of the orientation of the casters and the brake device according to a preferred embodiment of the present invention.

FIG. 3 is a schematic view showing the stand of FIG. 2 being made transparent.

Figure 4 is a schematic cross-sectional view of Figure 2.

FIG. 5 is a schematic view showing the orientation of the casters and the operation of the brake device according to a preferred embodiment of the present invention.

FIG. 6 is a schematic view showing the orientation of the casters and the operation of the brake device according to a preferred embodiment of the present invention.

Claims (5)

An orientation and braking device for a caster is provided on a mobile vehicle, the mobile vehicle includes a wheel body, and the orientation and braking device of the caster includes: a tripod pivotally disposed on the mobile carrier, the wheel The body pivot is disposed on the tripod, the tripod has a limiting hole, the limiting hole has opposite abutting sides, the abutting sides are located at different heights; and an oriented disk body is disposed on the moving load The directional disc body has a plurality of first positioning portions; an operating portion comprising: a support rod body disposed on the tripod; an orientation and brake unit, The opposite sides are pivotally disposed on the support rod body, and one side of the orientation and brake unit has at least one second positioning portion corresponding to one of the first positioning portions, the orientation and the brake unit are opposite to each other. The other side has at least one positioning slot and a braking portion, the positioning slot is located between the abutting sides, the braking portion corresponds to the wheel body, and the orientation and the opposite sides of the braking unit have an offset therebetween a top elastic piece, the top elastic piece abuts against the tripod; An operation unit has an operation plate body on one side, a positioning plate body and a limiting plate body connected to each other on the other side, and the operation plate body and the positioning plate body are connected in a V shape, and the positioning plate body is opposite The two sides of the pair are respectively abutted against one of the abutting sides and the positioning groove, and the limiting plate body is inserted through the limiting hole to abut one of the abutting sides; The top portion has a receiving groove, and the bottom portion has a positioning protrusion. The orientation and the opposite side of the brake unit have a positioning hole. The connection between the operation plate body and the positioning plate body is disposed in the receiving portion. a slot, the positioning protrusion is disposed in the positioning hole. The orientation and the braking device of the caster according to claim 1, wherein the first positioning portions are respectively a positioning groove to be annularly disposed on the directional disk body, and the second positioning portion is a positioning tab to correspond to the Wait for one of the grooves. The orientation and braking device of the caster according to claim 1, further comprising a first annular ball set disposed between the stand and the mobile carrier. The orientation and braking device of the caster of claim 3, further comprising a dustproof gasket disposed between the tripod and the moving carrier, the dustproof gasket ring being disposed outside the first annular ball set . The orientation and braking device of the caster according to claim 1, further comprising a second annular ball set disposed between the stand and the directional disk.