JPH0214824U

JPH0214824U -

Info

Publication number: JPH0214824U
Application number: JP9268788U
Authority: JP
Priority date: 1988-07-13
Filing date: 1988-07-13
Publication date: 1990-01-30
Anticipated expiration: 2003-07-13
Also published as: JPH074332Y2

Description

[Brief explanation of drawings]

第１図は本考案のリニアガイド装置の組みつけ
正面図、第２図は本考案の第１実施例の要部横断
面図、第３図はそのスライダの分解斜視図、第４
図は本考案の第２実施例のスライダの分解斜視図
、第５図は本考案の第３実施例のスライダの分解
斜視図、第６図は本考案の第４実施例のスライダ
の分解斜視図、第７図、第８図、第９図はそれぞ
れ従来のリニアガイド装置の要部横断面図、第１
０図は従来のリニアガイド装置に必要な保持器取
付けスペースの説明図、第１１図はリニアガイド
装置におけるボール循環用湾曲路の曲率半径Ｒと
ボール径Ｄとの関係を説明する部分模式図である
。１は案内レール、４Ａ，４Ｂは案内レールのボ
ール転動溝、５は凹所、１０はスライダ、１１Ａ
，１１Ｂはスライダのボール転動路、１２Ａ，１
２Ｂはボール戻り通路、１３Ａ，１３Ｂは湾曲路
、１５はボール、２６は凸部、２９，３２は（ボ
ール保持面となる）フランク面。 Fig. 1 is an assembled front view of the linear guide device of the present invention, Fig. 2 is a cross-sectional view of main parts of the first embodiment of the invention, Fig. 3 is an exploded perspective view of the slider, and Fig. 4 is an assembled front view of the linear guide device of the present invention.
The figure is an exploded perspective view of a slider according to a second embodiment of the present invention, Figure 5 is an exploded perspective view of a slider according to a third embodiment of the present invention, and Figure 6 is an exploded perspective view of a slider according to a fourth embodiment of the present invention. 7, 8, and 9 are cross-sectional views of main parts of conventional linear guide devices, and FIG.
Figure 0 is an explanatory diagram of the cage installation space required for a conventional linear guide device, and Figure 11 is a partial schematic diagram illustrating the relationship between the radius of curvature R of the curved path for ball circulation and the ball diameter D in the linear guide device. be. 1 is a guide rail, 4A and 4B are ball rolling grooves of the guide rail, 5 is a recess, 10 is a slider, 11A
, 11B is the ball rolling path of the slider, 12A, 1
2B is a ball return path, 13A and 13B are curved paths, 15 is a ball, 26 is a convex portion, and 29 and 32 are flank surfaces (which serve as ball holding surfaces).

Claims

[Claims for Utility Model Registration] An extended guide rail having an axial ball rolling groove on the side surface, and a ball rolling groove opposite to the ball rolling groove of the guide rail on the side surface; a slider having a straight ball return path parallel to the ball return path, a semi-doughnut-shaped curved path connecting the ball return path and the ball rolling groove at an end, the opposing ball rolling grooves, and the ball return path; and a large number of balls rotatably inserted into a curved path, wherein the guide rail is provided with a recess cut out in the side surface of the rail in the axial direction, and both sides of the recess are provided with a recess in the axial direction. At the edge,
A ball rolling groove having a flank surface having a substantially quarter-circular cross section is formed, and the slider is loosely fitted into the recess of the guide rail with a part of the side surface of the slider protruding outward. At the same time, a ball rolling path is formed at the base of the projection, the cross-sectional shape of which is a combination of a substantially quarter circle and a substantially semicircle, and a ball rolling path having a ball rolling groove in a part thereof. A linear guide device characterized in that one flank surface from the outside of the substantially semicircular portion in the combined shape is configured as a ball holding surface that prevents the balls from falling off when the slider is removed from the guide rail.