JPS6387318U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a sectional view taken along the line - - of Fig. 1, Fig. 3 is a sectional view taken along the line - - of Fig. 2, and Figs. 4, 5, and 6 each show an example of a ball guide member that can be applied to the present invention. A cross-sectional view, a top view, a top view of the lower half with the upper half removed, and FIG. 7 is a front view of the end plate. In the figure, 1 is a guide rail, 2a, 2b are ball rolling grooves, 5 is a slider, 10 is a race member, 11a
, 11b is a ball rolling groove, 12a and 12b are positioning holes, 20A is a first ball guide member, 20B
is the second ball guide member, 21a is the upper half body, 21
b is the lower half, 22 is the trunk, 23a, 23b are the collars, 24 is the positioning projection, 25 is the ball return path,
26a, 26b are curved ball passages, 27a, 27
b is a protrusion, and 30 is a ball.

Claims (1)

[Scope of utility model registration request] A guide rail that has a U-shape extending in the axial direction and has a ball rolling groove facing the inner surface of the side wall, and a ball rolling groove is formed on the outer peripheral surface of the side wall facing the ball rolling groove of the guide rail. a race member formed in a U-shape, and first and second ball guides disposed in a recessed portion of the race member and having a ball passage therein communicating with one of the ball rolling grooves of the race member. a member, and a large number of balls inserted into the race member and the ball rolling groove of the rail and the ball passages of the first and second ball guide members so as to be able to roll and circulate; One of the first and second ball guide members is provided with a positioning hole, the other is provided with a positioning protrusion that fits into the positioning hole, and the first and second ball guide members are arranged adjacently in the axial direction. The race member has protrusions at both ends that fit into the ball rolling grooves of the rail and form curved ball passages by communicating the internal ball passages with the ball rolling grooves of the guide rail and the race member. The miniature linear guide device is characterized in that the first and second ball guide members are fixed together by fitting the positioning protrusion and the positioning hole, respectively, to form a slider.