JPH042580Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a device for attaching casters to the feet of fixtures such as desks and tables in which the lower end of the leg is provided with a foot that is horizontal or slopes downward toward the end.

[Conventional technology]

FIG. 5 shows a table equipped with a conventional caster mounting device as described above. In Fig. 5, 1 is a top plate, 2 is a vertical leg whose upper end is fixed to both the left and right ends of the bottom surface of the top plate 1, and 3 is a vertical leg whose upper end is fixed to the lower end of leg 2, and is horizontal in the front-rear direction. It is a foot that extends to . As shown in FIG. 6, the foot portion 3 is made of a tubular body such as a square pipe, and a cover 4 made of synthetic resin that closes the open end is fitted and fixed to the end of the foot portion 3. At the end, a mounting shaft 6 of the caster 5 is screwed into a mounting member 7 provided on the foot 3, so that the height can be adjusted.

[Problem that the invention attempts to solve]

The conventional caster mounting device configured as described above separately attaches the cover 4 and caster 5 to the leg 2.
The mounting shaft 6 of the caster 5 was screwed into the mounting member 7 provided on the foot 3, making it difficult to attach and detach the caster 5 and adjust the height. The problem was that it was also troublesome. This idea is an attempt to solve the above-mentioned problems, and it is a fixture caster that allows easy attachment of a cover that closes the open end of the caster and foot, and also allows easy attachment and detachment of the caster itself and adjustment of the height. The purpose is to provide a mounting device with a simple structure.

[Means to solve the problem]

The fixture caster mounting device according to this invention is
In fixtures such as tables and desks, which have legs that are horizontal or slope downward toward the ends at the lower ends of the legs, and casters are attached to the ends of the legs, the legs may have a tubular shape such as a square pipe. Fit the caster holder of the mounting member made of a synthetic resin molded product in which a cover that closes the open end of the foot and a caster holder are integrally formed into the foot part made of the body, and insert the caster holder into the separation groove opened on the inner end surface of the caster holder. Fit the mounting shaft of the caster into the continuous vertical hole, screw it into the tightening hole perpendicular to the separation groove, tighten the caster holder using the tightening screw that can be operated from the foot, and then tighten the caster holder on the vertical hole wall. The mounting shaft is fixed so as to be movable up and down.

[Effect]

In the caster mounting device according to this invention, a cover that closes the open end of the foot of the leg and a caster holder are integrally formed of a synthetic resin molded product, and the caster holder is fitted into the foot, thereby attaching the cover to the foot. and caster holder can be attached to the foot at the same time, making the installation work easier. In addition, the caster mounting device according to this invention fits the mounting shaft of the caster into a vertical hole provided in the caster holder, and inserts the tightening screw from outside the foot into the tightening hole orthogonal to the separation groove continuous with the vertical hole. Since it was tightened by operation, by loosening the tightening screw, the elastic restoring force of the caster holder loosens the tightening by the vertical hole wall of the mounting shaft, allowing stepless adjustment of the height of the caster, and then tightening it again. By tightening the set screw, the diameter of the vertical hole is reduced and the mounting shaft can be tightened and fixed on the wall of the vertical hole. Therefore, the height adjustment and attachment/detachment of the caster can be easily made, and there is no need to tighten the mounting member other than the caster. Only screws are required, the number of parts is small, and the structure is simple.

【Example】

An embodiment of this invention will be described below with reference to FIGS. 1 to 4. In FIGS. 1 to 4, the same reference numerals as in FIGS. 5 and 6 indicate corresponding parts. This example is
Attachment members 7 are fitted and fixed to the ends of the foot portions 3, respectively. The mounting member 7 includes a rectangular parallelepiped-shaped caster holder 8 that fits into the leg part 3 made of a square pipe, and a plate-shaped cover 9 that closes the open end of the leg part 3, which are integrally made of a synthetic resin having a certain degree of elasticity. The cover 9 is formed to have a cross-sectional shape similar to and slightly larger than the caster bridge 8. Caster holder 8
has a separation groove 8 with one end open on the inner end surface thereof.
A and a vertical hole 8b, in which the other end of the separation groove 8a is continuous to the outer periphery, are formed over the entire length of the caster receiver 8 in the height direction. Further, the caster receiver 8 is provided with a horizontal tightening hole 8c that is perpendicular to the separation groove 8a, and the tightening hole 8c has a straight hole 8e formed in a large diameter recess 8d formed on one side of the separation groove 8a. A threaded hole portion 8f is continuously formed on the other side of the separation groove 8b, facing the straight hole portion 8e. The caster receiver 8 of the mounting member 7 is press-fitted into the foot 3 from the end opening, and the cover 9 closes the end opening and comes into contact with the end surface of the foot 3. In this state, the round bar-shaped mounting shaft 6 of the caster 5 is attached to the foot 3.
It is loosely inserted into the hole 3a formed on the lower surface of the caster receiver 8, and is inserted into the vertical hole 8b of the caster receiver 8. Further, the tightening screw 10 is inserted into the tightening hole 8c from the hole 3b provided on the inner surface of the foot 3, and the foot 3 is inserted into the screw hole 8f of the tightening hole 8c.
Tighten by external operation, head 10 of tightening screw 10
By rotatably fitting a into the recess 8d and engaging it with the bottom of the recess 8d, the width of the separation groove 8a is reduced, the diameter of the vertical hole 8b is reduced, and the mounting shaft 6 is tightened and fixed by the vertical hole wall. do. In this embodiment, the head 10a of the tightening screw 10 is housed in the foot 3 so as not to protrude outside, and the head 10a has a groove 10b with a width that can be operated with a coin. It is formed. Further, the caster 5 has a main body 5a connected to the lower end of the mounting shaft 6 so as to be rotatable about the shaft.
A roller 5c is rotatably attached to a shaft 5b horizontal to a. The configuration of this embodiment other than those described above is the same as the conventional one shown in FIGS. 5 and 6. The caster mounting device of the embodiment configured as described above can be operated by loosening the tightening screw 10 from outside the leg portion 3 in the mounted state shown in FIG.
The diameter of the vertical hole 8b expands slightly due to the elastic restoring force of the caster holder 8, and the tightening of the mounting shaft 6 by the wall of the vertical hole loosens, so the height of the caster 5 can be adjusted steplessly by moving the mounting shaft 6 in the axial direction. It can be adjusted to After adjustment,
By tightening the tightening screw 10 again, the diameter of the vertical hole 8b is reduced, and the mounting shaft 6 can be tightened and fixed on the vertical hole wall. In addition, in this invention, the foot part 3 of the leg 2 is not limited to the horizontal one as in the above embodiment;
It may be one that slopes downward toward the end, and is not necessarily limited to a square pipe, but may be a tubular one with another cross-sectional shape. Furthermore, this invention is not limited to tables as in the above embodiments, but can be widely applied to furniture such as desks and chairs, and may be provided with a stopper to prevent the rotation of the rollers, if necessary.

[Effect of the idea]

As explained above, according to this invention, a foot made of a tubular body provided at the lower end of the leg is made of a synthetic resin molded product in which a cover that closes the open end of the foot and a caster holder are integrally formed. The caster holder of the mounting member is fitted, the mounting shaft of the caster is fitted into the vertical hole continuous to the separation groove opened on the inner end surface of the caster holder, and the tightening screw is screwed into the tightening hole perpendicular to the separation groove. The caster holder is tightened by operating from the foot, the diameter of the vertical hole is reduced, and the caster mounting shaft is fixed in a vertically movable manner on the wall of the vertical hole.The cover and caster holder are then fitted to the foot at the same time. In addition, by loosening the tightening screw, the height of the caster can be easily adjusted, and this adjustment and the attachment and detachment of the caster are easy. Furthermore, it has a simple configuration with a small number of parts. , it has the effect of being able to provide it at a low cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a table equipped with a caster mounting device according to an embodiment of this invention, FIG. 2 is an exploded perspective view of the caster mounting device according to an embodiment of this invention, and FIG. 3 is a cross-sectional view of the same. FIG. 4 is a perspective view of a mounting member, FIG. 5 is a perspective view of a table equipped with a conventional caster mounting device, and FIG. 6 is a perspective view of a conventional caster mounting device. 1... Top plate, 2... Legs, 3... Feet, 3a, 3
b...hole, 5...caster, 6...mounting shaft, 7
...Mounting member, 8...Caster holder, 8a...Separation groove, 8b...Vertical hole, 8c...Tightening hole, 8d...
... recess, 8e... straight hole, 8f... screw hole,
9...Cover, 10...Tightening screw, 10a...Head.

Claims (1)

[Scope of utility model registration request] In fixtures such as tables and desks, in which the lower end of the leg is provided with a leg that is horizontal or slopes downward toward the end, and casters are attached to the end of the leg, the leg may have a tubular shape such as a square pipe. Fit the caster holder of the mounting member made of a synthetic resin molded product in which a cover that closes the open end of the foot and a caster holder are integrally formed into the foot part made of the body, and insert the caster holder into the separation groove opened on the inner end surface of the caster holder. Fit the mounting shaft of the caster into the continuous vertical hole, screw it into the tightening hole perpendicular to the separation groove, tighten the caster holder using the tightening screw that can be operated from the foot, and then tighten the caster holder into the vertical hole wall. A caster mounting device for fixtures, characterized in that the mounting shaft is fixed so as to be movable up and down.