Rolling element accommodating tool

Abstract

Provided is a practical rolling element accommodating tool that engages firmly with a reinforcing material without compromising flexibility, wherein tension strength of the reinforcing material is sufficiently exhibited. A rolling element accommodating tool for rotatably accommodating a plurality of rolling elements (4) at predetermined intervals is placed along an endless circulation path (5) along which the rolling elements (4) circulate in a linear motion device (1) provided with the endless circulation path (5) and comprising a rail element (2) and a linear moving element (3) that moves linearly relative to the rail element (2); wherein the rolling element accommodating tool has a main body configured from spacers (6) individually provided between adjacent rolling elements (4), and connecting parts (7) oriented in a direction orthogonal to the direction in which the spacers (6) are aligned, protruding on both sides of the rolling elements (4) in a state of accommodating the rolling elements (4), and serially connecting the spacers; reinforcing films (9) having the same length in the longitudinal direction as the connecting parts (7) being contained within the connecting parts (7); and the reinforcing films (9) being formed at large widths in predetermined positions.

Description

technical field [0001] The present invention relates to a rolling body storage piece. Background technique [0002] The linear motion device is composed of a track and a block that moves linearly relative to the track, and the linear motion device has an infinite circulation channel for the circulation of rolling elements (balls). The rails move relatively, and the plurality of rolling bodies circulate while rolling in the infinite circulation channel. [0003] In the above-mentioned linear motion device, as the block moves, adjacent rolling elements rub against each other to prevent smooth rolling or generate noise. Rolling storage belt. [0004] Various types of such rolling element storage belts have been proposed. For example, there is a rolling element storage belt incorporating a reinforcing member to improve tensile strength (see Patent Document 1 and the like). [0005] However, when a filler (short fiber) is mixed as a reinforcement, the filler is exposed due to ...

AI Technical Summary

Problems solved by technology

[0005] However, when a filler (short fiber) is mixed as a reinforcement, the filler may be exposed due to wear of the belt, which may shorten the life of the linear motion device.

[0006] In addition, in the case of incorporating long fibers such as carbon or glass, although the above-mentioned problem of exposure does not occur, effective reinforcement cannot be performed, and sufficient tensile strength cannot be obtained.

[0007] That is, with the conventional rolling element storage belt using long fibers as reinforcements, there is a problem that the bonding force between the long fibers and the resin (base material) depends on the adhesion of the interface between the long fibers and the resin. Relay, therefore, when a tensile force is applied, the resin is peeled off from the long fiber before the long fiber's own tensile strength is exerted

[0008] Therefore, for example, a technique of increasing the contact area between the long fiber and the resin has been proposed by making the cross-sectional shape of the long fiber polygonal, etc., but the cross-sectional area hardly changes in the longitudinal direction, and the bonding force depends on the long fiber and the resin. There is no difference in the adhesive force of the interface, so the status quo is that the above problems have not been solved

[0009] In addition, in the case of using long fibers with high tensile strength, there is also a problem that the bending strength that affects the smoothness of the motion of the linear motion guidance becomes too large.

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