JPS6333049U

JPS6333049U -

Info

Publication number: JPS6333049U
Application number: JP12691686U
Authority: JP
Priority date: 1986-08-20
Filing date: 1986-08-20
Publication date: 1988-03-03

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る変速操作機構
を備えた手動変速機の部分縦断面図、第２図は同
操作機構の拡大縦断面図、第３図は同操作機構の
拡大斜視図、第４図は同操作機構における両シヤ
フトと連結アームとの連結部の拡大縦断面図、第
５図は第４図の矢印―線方向にみた断面図で
ある。符号の説明、１１……エクステンシヨンハウジ
ング、１４……シリンダ、２０……歯車変速機構
、３０……変速操作機構、３１……シフトレバー
、３２……第１シヤフト、３２ａ……ピストン部
、３３……第２シヤフト、３４……シフトアンド
セレクトレバー、３５……バネ部材、３６……連
結アーム、３８ａ，３８ｂ……連結ピン、Ｒ１，
Ｒ２……油室。 FIG. 1 is a partial vertical cross-sectional view of a manual transmission equipped with a speed change operating mechanism according to an embodiment of the present invention, FIG. 2 is an enlarged vertical cross-sectional view of the operating mechanism, and FIG. 3 is an enlarged perspective view of the operating mechanism. 4 is an enlarged vertical sectional view of the connecting portion between both shafts and the connecting arm in the operating mechanism, and FIG. 5 is a sectional view taken in the direction of the arrow--line in FIG. 4. Explanation of symbols, 11... Extension housing, 14... Cylinder, 20... Gear transmission mechanism, 30... Speed change operation mechanism, 31... Shift lever, 32... First shaft, 32a... Piston portion, 33 ... Second shaft, 34 ... Shift and select lever, 35 ... Spring member, 36 ... Connection arm, 38a, 38b ... Connection pin, R1,
R2...Oil chamber.

Claims

[Scope of utility model registration request]

A shift lever assembled to a retainer that covers an upper opening provided at one end of a case housing a gear transmission mechanism is connected to a shift and select lever via a connecting means, and the shift lever is moved in a select direction. A manual transmission in which the shift and select lever is operated to selectively engage a forkshaft for each gear stage, and the shift lever is operated in a shift direction to operate the forkshaft that engages with the shift and select lever. In the speed change operation mechanism, the coupling means passes through a cylinder provided in the case, the shift and select lever being integrally assembled at one end thereof, in a liquid-tight manner and slidable in the axial direction, and the shift lever a cylindrical first shaft assembled to be movable by a predetermined amount in the axial direction and integrally rotatable in the circumferential direction; A second shaft assembled to be able to move integrally in the axial direction with respect to the shift lever and rotatable by a predetermined amount in the circumferential direction, and a spring that connects these two shafts to each other and bends in response to the moving force when the shaft moves relative to each other. A piston portion is provided on the outer periphery of the intermediate portion of the first shaft, the piston portion being fitted into the cylinder in a liquid-tight manner and slidable in the axial direction, and partitioning the inside of the cylinder into two oil chambers in the axial direction. A shift operation mechanism for a manual transmission, further comprising a switching valve mechanism that is operated between the two shafts when the shafts move relative to each other to control supply and discharge of hydraulic oil to and from the two oil chambers.