JPH0253518U

JPH0253518U -

Info

Publication number: JPH0253518U
Application number: JP13247788U
Authority: JP
Priority date: 1988-10-11
Filing date: 1988-10-11
Publication date: 1990-04-18

Description

[Brief explanation of drawings]

第１図ないし第５図は本考案の第１実施例を示
し、第１図は一部を切除して示す正面図、第２図
は第１図の−線断面図、第３図はボール転動
溝の態様を模式的に表す側面図、第４図は第３図
の−線断面図、第５図は第３図の−線断
面図、第６図はボール転動溝の他の例を示す要部
断面図、第７図は軽量形リニアガイド装置に適用
した例を半断面で示す正面図である。１は案内レール、２はスライダ、２Ａはスライ
ダ本体、３は（案内レールの）ボール転動溝、４
は（スライダの）ボール転動溝、４ａ，４ｂはそ
の片フランク面、５はボール戻り通路、６は湾曲
路、７はボール。 1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a partially cutaway front view, FIG. 2 is a cross-sectional view taken along the - line in FIG. A side view schematically showing the aspect of the ball rolling groove, FIG. 4 is a sectional view taken along the line - - in FIG. 3, FIG. 5 is a sectional view taken along the line - - in FIG. FIG. 7 is a front view showing a half section of an example applied to a lightweight linear guide device. 1 is a guide rail, 2 is a slider, 2A is a slider body, 3 is a ball rolling groove (of the guide rail), 4
1 is a ball rolling groove (of the slider), 4a and 4b are one flank surface thereof, 5 is a ball return path, 6 is a curved path, and 7 is a ball.

Claims

[Claims for Utility Model Registration] (1) A guide rail having a ball rolling groove on the side surface and extending in the axial direction; Ball rolling groove opposite to the ball rolling groove on the side,
and a slider having a ball return passage in its wall thickness parallel to the ball return passage, and a semi-doughnut-shaped curved passage at its axial end that communicates the ball return passage with the ball rolling groove at each end; , a linear guide device comprising a large number of balls fitted in the opposing ball rolling grooves and arranged so as to be freely rollable, wherein both upper and lower flank surfaces of the ball rolling groove of the guide rail are ball rolling surfaces. The ball rolling groove of the slider is formed such that only one flank surface of the ball rolling groove serves as a ball rolling surface in a part of the axial direction, and both of the mutually opposing A linear guide device characterized in that the balls fitted in the ball rolling grooves are configured so that some balls are in contact with the ball rolling groove surface at four points and others are in contact at two or three points. . (2) The linear guide device according to claim 1, wherein the ball rolling groove of the guide rail and the ball rolling groove of the slider opposing thereto are in a single row.