JPS6123581Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wheel used for door wheels and the like.

Conventional synthetic resin wheels used for door wheels have the advantage of being mass-produced compared to metal ones, but with long-term use, the shaft holes wear out, causing squeaks and poor durability. It was scarce.

The present invention is an improvement on the above-mentioned drawbacks. By supplying appropriate lubricating oil to the shaft hole over a long period of time, the shaft hole is prevented from wearing out and can be used comfortably for a long period of time. The present invention provides wheels for door wheels, etc.

The configuration of the present invention will be explained below based on the embodiment shown in the drawings.

In FIGS. 1 to 5, reference numeral 1 denotes a ring body made of synthetic resin that is rotatably supported by a mounting bracket (not shown), and has a shaft hole 2 in its center.
Moreover, a rail groove 3 is provided on the outer circumferential surface. Concave portions 5, 5 concentric with the shaft hole 2 are formed on both sides 4, 4 of the wheel body 1, and a plurality of horizontal holes 6, 6 are formed in the concave portion 5 on one side 4 in the shaft hole. The horizontal holes 6 are formed at equal angles to each other, and an oil-impregnated material 7 such as a piece of cloth, paper, or felt paper impregnated with lubricating oil is inserted and held therein. Reference numeral 8 denotes a cover plate formed from a pressed steel plate or the like as shown in FIG. At the same time, a sufficient amount of lubricating oil retained in the horizontal hole 6 by the oil-containing substance 7 passes through the narrow gap formed between the inner surface 9 of the cover plate 8 and the ring body 1. The structure is such that an appropriate amount of oil is supplied to the shaft hole 2 and that oil can be supplied for a long period of time. Therefore, when the wheel a rotates, its sudden movement makes oil supply smooth, and quiet, lightweight, and durable performance can be achieved.

As explained above, in the present invention, an annular recess is formed on the entire circumference of both sides between the circumference of the shaft hole and the outer peripheral side of the ring body, and the annular recess is formed on one side of the annular recess to the other side. A plurality of horizontal holes are provided at equal angles to the shaft hole, and each horizontal hole is filled with an oil-containing substance corresponding to the shape of the horizontal hole. The area and shaft hole are covered with an integrated cover plate, and a small gap is formed from the side hole to the shaft hole, and between the side surface of the ring body and the inner surface of the cover plate, which is bent for oil supply. Therefore, it is possible to supply an appropriate amount of lubricating oil to the shaft hole of the wheel over a long period of time, and replenishing lubricating oil is easy by simply applying it to the gap between the cover plate and the main body, as it is sucked into the oil-bearing body. As a result, it is possible to prevent wear of the shaft hole and the generation of squeaks even after long-term use, and the horizontal hole for oil supply, the oil-containing material, and the cover covering these can all be installed in one direction. This makes processing for mass production easier and is effective in improving productivity.Furthermore, the structure allows for quick oil supply through minute gaps, making it possible to supply liquid oil for a long period of time. , extremely durable. Furthermore, since a plurality of horizontal holes are provided at equal angles to the shaft hole, there is no eccentricity of the center of gravity during rotation, and the machine is quiet.

[Brief explanation of the drawing]

Figure 1 is a front view showing an embodiment of the present invention, Figure 2 is a front view showing an embodiment of the present invention.
The figures are a vertical side view of FIG. 1, FIG. 3 is a cross-sectional explanatory view of the ring, FIG. 4 is an explanatory view of the oil-containing substance, and FIG. 5 is a cross-sectional explanatory view of the cover plate. a... Ring body, 1... Ring body, 4, 4... Side surface, 5, 5... Recessed part, 6... Horizontal hole, 7... Oil-containing substance, 8... Cover plate.

Claims (1)

[Scope of utility model registration request] An annular recess is formed on the entire circumference of both sides between the periphery of the shaft hole and the outer peripheral side of the wheel body, and a plurality of horizontal holes are formed in the shaft hole without penetrating the annular recess on one side to the opposite side. At the same time, each horizontal hole is filled with an oil-containing substance corresponding to its shape, and the surface on the side of the annular recess and the periphery of the annular recess and the shaft hole are integrally formed. A door roller is covered with a cover plate, and a small bending gap for oil supply is formed from the side hole to the shaft hole and between the side surface of the wheel body and the inner surface of the cover plate. A circular body for use.