JP2869676B2 - Slide roller element - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a roller element constituting a free rotating roller of a roller slide.

(Prior Art) In recent years, roller slides have been used for many slides.

This roller slide has a length of 50-120mm and a diameter of 35
A large number of free-rotating rollers constituted by loosely fitting a roller element of about 50 mm on a support shaft are juxtaposed between left and right side plates and are used as sliding surfaces.

Therefore, in this slide, almost no sliding occurs between the person who slides down and the roller surface, so that the apparent sliding friction of the sliding surface is smaller than that of the conventional slide in which the sliding surface is formed by a plate material. Is significantly reduced, and there is almost no possibility that frictional heat is generated due to sliding friction with a sliding surface when the vehicle slides down, or clothes are worn.

However, since the conventional free-spinning roller of the roller slide needs to be formed using a synthetic resin having excellent wear resistance and weather resistance such as nylon,
There was a problem that it was too hard and pain was felt in the buttocks and the like.

(Problems of the prior art) As a measure for solving the above-mentioned problem of the free-rotating roller, the present inventor made the roller element a double structure of an outer cylinder and an inner tube, and connected the both by a thin plate-like connecting member. As a result, when an external force equal to or more than a predetermined value is applied to the outer cylinder, the force is transmitted to the connecting member, and this is bent so that the outer cylinder sinks, so that the outer cylinder is apparently made flexible, and the invention has already been made. Patent applications (Japanese Patent Application No. 2-21)
No. 4128).

However, this roller element has the flexibility required for a free rotation roller. However, the apparent flexibility of the side end of the outer cylinder is significantly lower than that of other parts, There was a problem that the flexibility of the roller was uneven.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a roller element whose apparent flexibility is almost uniform over its entire length.

(Means for Solving the Problems) The roller element of the roller slide according to the present invention is formed by reducing the number of connecting members for connecting the outer cylinder and the inner tube at the center of the roller element and increasing the number of connecting members at the side ends. The above problem has been solved.

(Operation) In the roller element of the roller slide according to the present invention, the connecting member for connecting the outer tube and the inner tube is formed in a small number at the center portion of the roller element and is formed more at the side end portion, so that the center member of the outer tube is formed. The difference in apparent flexibility between the part and the side edges is reduced, and the free-running roller has a substantially uniform flexibility over its entire length.

(Example) Hereinafter, a roller for a roller slide according to the present invention will be specifically described based on an illustrated example.

 FIG. 1 shows a vertical sectional view of the runway of the roller slide.

The basic structure of the runway is no different from that of a conventional roller slide.

That is, the runway is composed of a pair of left and right side plates 1 and a large number of free rotating rollers 2, and the free rotating rollers 2 are formed by loosely fitting several roller elements 3 on a support shaft 4.
This is attached at a fixed interval between both side plates 1 and 1 to form a sliding surface.

Roller element 3 consists of an outer tube 31 and inner tube 32, and the connecting member and 33 _R, 33 _L. The outer tube 31 and the inner tube 32 are doubled, and have a structure in which both are connected by connecting members 33 _R and 33 _L. These have appropriate elasticity such as nylon and have abrasion resistance. It is integrally molded using a synthetic resin having heat resistance, weather resistance and the like.

The outer cylinder 31 has a length of 50 to 120 mm, a diameter of 35 to 50 mm, a wall thickness of about 2 to 4 mm, and forms an outer shape of the roller element 3. The inner pipe 32 has a diameter of the support shaft 4. It has a tubular shape with approximately the same inner diameter as that of
Is maintained at a predetermined position of the support shaft 4.

The connecting members 33 _R and 33 _L connect the outer tube 31 and the inner tube 32 and also give the outer tube 31 apparent flexibility, and are slightly thinner than the outer tube 31 and have an inner tube. The outer tube 31 is formed so as to cross in a direction crossing the radiation passing through the center of the tube 32, and when an external force of a predetermined value or more is applied to the outer tube 31, the outer tube 31 is bent and the outer tube 31 sinks.

In the embodiment shown in FIGS. 2 and 3, the connecting members 33 _R and 33 _L are formed one by one on both sides of the roller element 3, but are not limited to this. is not. For example, as shown in FIG. 4, three sheets each may be formed, or more may be formed. Some of them may be formed to extend to the center. In short, the flexibility of the connecting members 33 _R and 33 _L and the roller element 3
The number is determined by the elasticity, flexibility and the like required of the roller element 3. The roller element 3 is formed more at both ends than at the center, so that the side ends of the roller element 3 are more flexible than the apparent flexibility of the center. The apparent flexibility is not significantly reduced.

(Effects of the Invention) As described in detail above, the present invention has a structure in which the connecting members of the roller element formed by the outer cylinder, the inner tube, and the connecting member are formed more at both ends than at the center of the roller element. The difference in apparent flexibility between the center and the side edges is reduced. As a result, the free rotation roller of the roller slide becomes almost uniform in flexibility over its entire length, so that even if it slides down this slide surface, pain is not felt in the buttocks, and the use effect of the slide is further improved. is there.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a slideway of a roller slide using a roller element according to the present invention, FIG. 2 is a side view showing an example of a roller element, and FIG.
FIG. 4 is a side view showing another example of the roller element. 1: side plate, 2: free rotation roller 3: roller element, 4: support shaft 31: outer cylinder, 32: inner tube 33: connecting member

Claims (1)

(57) [Claims] 1. A roller element in which an outer cylinder, an inner tube, and a connecting member for connecting the outer tube and the inner tube are integrally formed using a synthetic resin having appropriate elasticity, abrasion resistance, weather resistance and the like. Is thinner than the outer cylinder, and when an external force exceeding a certain level is applied to the outer cylinder, the outer cylinder bends to give apparent flexibility to the outer cylinder. A roller element for a slide, characterized in that the difference in apparent flexibility between the central portion and the side end portion of the outer cylinder is reduced by forming a large number of pieces.