JPH0365045U

JPH0365045U -

Info

Publication number: JPH0365045U
Application number: JP12643889U
Authority: JP
Priority date: 1989-10-27
Filing date: 1989-10-27
Publication date: 1991-06-25

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の平面図、第２図は
第１図の−線に沿う断面図、第３図は第１図
、第２図におけるパイプ体の端部を示す拡大図、
第４図はパイプ体の他の実施例を示す図。１……ねじ軸、２……ナツト体、３……ボール
、４……ねじ溝、５，６……嵌合穴、７……循環
路、８……パイプ体、１０ａ，１０ｂ……突片、
１１……割り。 Fig. 1 is a plan view of an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is an enlarged view showing the end of the pipe body in Figs. 1 and 2. ,
FIG. 4 is a diagram showing another embodiment of the pipe body. 1... Screw shaft, 2... Nut body, 3... Ball, 4... Thread groove, 5, 6... Fitting hole, 7... Circulation path, 8... Pipe body, 10a, 10b... Projection piece,
11...split.

Claims

[Scope of utility model registration request]

A thread groove with a large number of balls is provided between the screw shaft and the nut body that fits into the screw shaft, and both ends are fitted into fitting holes provided in the nut body so as to communicate with the thread groove from the outside surface. The pipe body is provided with a U-shaped pipe body that forms a circulation path for the balls, and the pipe body has protrusions extending from both ends that extend into the threaded groove to guide the balls to the circulation path, and a projection piece that extends into the threaded groove in order to guide the balls to the circulation path. A ball screw with splits extending in the axial direction on both sides of the base of each protrusion.