JPS6446566U

JPS6446566U -

Info

Publication number: JPS6446566U
Application number: JP14162187U
Authority: JP
Priority date: 1987-09-18
Filing date: 1987-09-18
Publication date: 1989-03-22

Description

[Brief explanation of the drawing]

第１図は本考案に係るニユートラル位置保持機
構を備えるＨＳＴ油圧ユニツトの一部破断正面図
、第２図は第１図の―線断面図、第３図はニ
ユートラル位置保持機構の分解斜視図、第４図は
動力伝達系の縦断面図である。１……ＨＳＴ油圧ユニツト、２……トラニオン
軸、４……デタントローター、７……Ｖ溝、８…
…デタントホルダー、９……偏芯ライナー、１０
……止めナツト、１１……偏芯孔、１４……鋼球
、１５……スプリング。 Fig. 1 is a partially cutaway front view of an HST hydraulic unit equipped with a neutral position holding mechanism according to the present invention, Fig. 2 is a sectional view taken along the line -- in Fig. 1, and Fig. 3 is an exploded perspective view of the neutral position holding mechanism. FIG. 4 is a longitudinal sectional view of the power transmission system. 1...HST hydraulic unit, 2...Trunion shaft, 4...Detent rotor, 7...V groove, 8...
... Detente holder, 9 ... Eccentric liner, 10
... Locking nut, 11 ... Eccentric hole, 14 ... Steel ball, 15 ... Spring.

Claims

[Scope of utility model registration request]

A detent rotor 4 is connected to the end of a trunnion shaft 2 led out from the HST hydraulic unit 1, and a spring 1 compressed into a cylindrical detent holder 8 is inserted into a V groove 7 formed in the detent rotor 4.
In the neutral position holding mechanism of the HST hydraulic unit, which engages the steel ball 14 biased in one direction at 5, the eccentric liner 9 formed with the eccentric hole 11 extending in the axial direction is detented. Fitted into the holder 8, the eccentric hole 11 of the eccentric liner 9
The HST hydraulic system is characterized in that the spring 15 and the steel ball 14 are housed inside, and a locking nut 10 for fixing the eccentric liner 9 to the detent holder 8 is screwed onto the end of the eccentric liner 9. Unit's neutral position holding mechanism.