JP3112768U - Caster roll-in prevention cover - Google Patents

Abstract

An object of the present invention is to provide an enveloping prevention cover that covers a gap formed between a support yoke of a caster and a wheel.
A caster entrainment prevention cover that covers a gap between a wheel and a wheel that is pivotally supported by a support yoke that is attached to a base plate via a bearing, and has a substantially cylindrical shape with an open upper surface. A socket-like peripheral wall portion 11 that is externally fitted to the bearing portion of the caster and surrounds the front, rear, left, and right sides of the bearing portion, and a rear piece that is formed integrally with the peripheral wall portion and extends rearward and extends rearward of the support yoke of the caster 7 and a rear connecting portion 21 that closes the gap between the rear piece and the wheel, and the front wall surface of the peripheral wall substantially covers the gap between the front portion of the support yoke and the wheel. The side wall surface is configured to substantially cover the left and right gaps between the front left and right side surfaces of the support yoke and the left and right side surfaces of the wheels.
[Selection] Figure 1

Description

  The present invention relates to an entrainment prevention cover that covers a gap formed between a support yoke of a caster and a wheel.

Conventionally, as a cover that covers a gap in a caster, for example, in Japanese Patent Laid-Open No. 2000-203206, a cover portion that covers the upper and both sides of a wheel as a side plate integrated with the side plate that snuggles to both side surfaces of the wheel. The side plate is formed with a fitting portion into which the both side plates of the substantially inverted U-shaped frame are fitted, and the support hole is located at a position corresponding to the support hole provided at the lower part of the both side plates of the frame. A structure provided with is disclosed.
However, in the said structure, only the location which a coating | coated part becomes back at the time of driving | running | working of a wheel cannot be covered, and entrainment cannot be prevented at the time of reverse rotation of a wheel.
Further, in Japanese Patent Application Laid-Open No. 2004-58954, a covering that covers a peripheral part of a frame below a fixing bolt of a caster is covered with a covering that is a caster cover synthetic resin molded body. A cover part covering the side plate of the frame, a dustproof cover part covering the wheel side surface of the wheel, and a cap-like cover part surrounding the nut of the set bolt of the wheel and the frame Forming an engaging portion with the lower end portion of the side plate, forming an engaging portion with the lower end portion of the side plate of the cap and the cap-like covering portion surrounding the head of the set bolt of the wheel on the other side of the covering body; Even if the bolts and nuts are not removed from the caster frame by providing engaging means for engaging the cover together at the front and rear ends of the cover, it can be easily mounted as it is. Structure is disclosed that.
However, the above configuration has a drawback that the cover becomes large and the structure becomes complicated.
Refer to FIG. See FIG. 9.

  This device has been developed in view of the above circumstances, and its main problem is that it can prevent entrainment from the gap between the support yoke and the wheel while having a simple structure, and can prevent external impact. An object of the present invention is to provide a roll-in prevention cover for casters that can be buffered even if it is received to protect the revolving part.

In order to solve the above problem, the device of claim 1
In a roll-up prevention cover of a caster that covers a gap between a support yoke that is pivotally attached to a base via a bearing portion and a wheel that is pivotally supported by the support yoke,
It has a substantially cylindrical shape with an open upper surface, and is fitted around the bearing portion of the caster. The socket-like peripheral wall portion surrounding the front, rear, left and right of the bearing portion is formed integrally with the peripheral wall portion and extends rearward. It is screwed to a rear piece extending rearward of the support yoke, and comprises a rear connecting portion that substantially closes the gap between the rear piece and the wheel,
The front wall surface of the peripheral wall portion is set to substantially cover the gap between the front portion of the support yoke and the wheel, and the left and right side wall surfaces define the left and right clearances between the front left and right side surfaces of the support yoke and the left and right side surfaces of the wheel. It is characterized by being set to a substantially covering shape.
In the device of claim 2,
The upper part of the said surrounding wall part is formed in the connection part fitted on the outer peripheral wall surface of the bearing part of a caster without a clearance gap substantially.
In the invention of claim 3,
The bottom portion of the peripheral wall portion is formed of a curved surface that is curved with a slight gap along the trad surface of the wheel.
Furthermore, in the invention of claim 4,
An opening is formed at the bottom of the peripheral wall.
In the present invention, the front / rear direction refers to the front / rear direction when the caster goes straight.

  A preferred embodiment of a cast-in prevention cover for casters according to the present invention will be described below with reference to the drawings.

  In this embodiment, the caster 1 includes a base plate 3 fixed to the mounting shaft 2, a support yoke 5 that is pivotably attached to the base plate 3 via a bearing portion 4, and a shaft P attached to the support yoke 5. It consists of a wheel 6 that is pivotally supported (see FIG. 1).

  As shown in FIGS. 1 to 4, the entrainment prevention cover 10 has a substantially cylindrical shape with an open upper surface and is fitted on the bearing portion 4 of the caster 1 so as to surround the front, rear, left and right of the bearing portion 4. The peripheral wall portion 11 is formed integrally with the peripheral wall portion 11 and extends rearward, and is screwed to a rear piece 7 that extends rearward of the support yoke 5 of the caster 1, and a gap between the rear piece 7 and the wheel 6 is formed. It consists of the back connection part 21 which closes.

The peripheral wall portion 11 is formed in a shape in which an upper portion 11 a is fitted on the outer peripheral wall surface of the bearing portion 4 of the caster 1 without a substantial gap.
In the illustrated example, the inner peripheral surface of the upper portion 11a is formed with an uneven surface 11b that is continuous in the circumferential direction around the center line, so that it can be easily fitted to the outer periphery of the bearing portion 4 (see FIG. 5). ing.

  In the case of the illustrated example, the front wall 12 is inserted between the front part of the base plate 3 and the front part of the bearing part 5 in the case of the peripheral wall part 11, and as shown in FIG. Is formed in a substantially cross-sectional shape in which the lower part is inclined inward, and is set to a length that substantially covers the gap between the front part 8 of the support yoke 5 and the upper surface (trad surface) of the wheel 6. .

Further, the left and right side wall surfaces 13 and 14 of the peripheral wall portion 11 extend longer than the front wall surface 12, and are set so as to substantially cover the left and right gaps between the front left and right side surfaces of the support yoke 5 and the left and right side surfaces of the wheel 6. Has been.
The bottom portion 15 of the peripheral wall portion 11 is formed of a curved surface that is curved with a slight gap along the trad surface of the wheel 6, and the main portion 15a is notched in this embodiment.

Further, the rear wall surface 16 of the peripheral wall portion 11 is inserted between the support yoke 5 and the rear wall surface of the bearing portion 4 and extends downward to a position separating a slight gap from the upper surface (trad surface) of the wheel 6. Yes.
Accordingly, the peripheral wall portion 11 is fitted along the outer peripheral wall of the bearing portion 5 with substantially no gap, and can be buffered by the peripheral wall portion 11 when an external impact is applied.

Next, the rear connecting portion 21 is substantially formed at the extending piece portion 22 extending rearward from the peripheral wall portion 11, the screw-engaging concave portion 23 formed in the extending piece portion 22, and the distal end of the extending piece portion 22. The rear shielding piece 24 is bent at a right angle.
That is, the rear shielding piece 24 is formed to have a size that substantially closes the space between the rear piece 9 that extends rearward along the wheel by the support yoke 5 and the trad surface of the wheel 6.

On the other hand, a screw hole 9 a is formed in the rear piece 9 of the support yoke 5, and the screw hole 9 a is formed at a position aligned with the recess 23.
Since it consists of the said shape, the entrainment prevention cover 1 can be fixed to the caster 10 by screwing together the said screw hole 9a and the recessed part 23. As shown in FIG.

Next, FIGS. 5 to 8 show different embodiments of the entrainment prevention cover 1.
Similar to the above-described embodiment, the entrainment prevention cover 1 has a substantially cylindrical shape with an open upper surface and is fitted on the outer periphery of the bearing portion 4 of the caster 1 without a substantial gap and surrounds the front, rear, left and right of the bearing portion 4. A socket-shaped peripheral wall portion 11, which is integrally formed with the peripheral wall portion 11, extends rearward, is screwed to a rear piece 7 extending rearward of the support yoke 5 of the caster 1, and the rear piece 7 and the wheel 6 And a rear connecting portion 21 that closes the gap.

In the illustrated example, the front wall 12 is inserted between the front part of the base plate 3 and the front part of the bearing part 5, and the step part 12 a is hung on the lower end 8 a of the front part 8 of the support yoke. It can be stopped.
The front wall surface 12 extends to a position that separates a slight gap from the upper surface (trad surface) of the wheel 6 and has a length that substantially covers the gap between the front portion 8 of the support yoke 5 and the upper surface (trad surface) of the wheel 6. It is set.

Further, the rear wall surface 16 is inserted between the rear portion of the bearing portion 5 and the step portion 8a serving as the base portion of the rear portion 8 of the support yoke 5 and extends downward to slightly extend from the upper surface (trad surface) of the wheel 6. It extends to a position that separates a gap.
Since other shapes are the same as those in the above embodiment, the description thereof is omitted.

The entrainment prevention cover 10 can substantially close the gap between the support yoke 5 and the wheel 6, so that there is no fear of entrainment and safety can be improved.
Also in this case, the wrapping prevention cover 1 can be fixed to the support yoke 5 using screws, and the attachment can be performed easily.

In the present invention, the peripheral wall portion 11 only needs to have a shape and configuration that fits around the bearing portion, and is not limited to the above-described embodiment.
In addition, it goes without saying that various design changes can be made without departing from the scope of the present invention.

It is a disassembled perspective view which shows the state which attaches an entrainment prevention cover to a caster. (A) Side view of entrainment prevention cover, (b) Front view of peripheral wall, (c) Rear view of entrainment prevention cover. (A) The top view of an entrainment prevention cover, (b) It is the bottom view. It is a perspective view of an entrainment prevention cover. It is sectional drawing of the state which attached the roll-in prevention cover of Example 2 to the caster. It is the same rear view. It is the same side view. It is the same top view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Caster 2 Mounting shaft 3 Base 4 Bearing part 5 Supporting yoke 6 Wheel 7 Back piece 8 Front part 9 Back piece 9a Screw hole 11 Peripheral wall part 12 Front wall surface 12a Step part 13, 14 Side wall surface 15 Bottom part 16 Rear wall surface 21 Connecting part

Claims (4)

In a roll-up prevention cover of a caster that covers a gap between a support yoke that is pivotally attached to a base via a bearing portion and a wheel that is pivotally supported by the support yoke,
A substantially cylindrical shape with an open upper surface, and a socket-like peripheral wall portion that is fitted around the bearing portion of the caster and surrounds the front, rear, left, and right sides of the caster portion, and is formed integrally with the peripheral wall portion and extends rearward to support the caster. It is screwed to a rear piece extending rearward of the yoke, and comprises a rear connecting portion that substantially closes a gap between the rear piece and the wheel,
The front wall surface of the peripheral wall portion is set to substantially cover the gap between the front portion of the support yoke and the wheel, and the left and right side wall surfaces define the left and right clearances between the front left and right side surfaces of the support yoke and the left and right side surfaces of the wheel. Caster roll-in prevention cover, characterized in that it is set in a shape that almost covers.   2. The caster entrainment prevention cover according to claim 1, wherein the upper portion of the peripheral wall portion is formed as a connecting portion that is fitted onto the outer peripheral wall surface of the bearing portion of the caster without a substantial gap.   The cast-in prevention cover for casters according to claim 1, wherein the bottom portion of the peripheral wall portion is formed of a curved surface that is curved with a slight gap along the trad surface of the wheel. 2. The caster roll-in prevention cover according to claim 1, wherein an opening is formed in a bottom portion of the peripheral wall portion.

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