JPS639545U

JPS639545U -

Info

Publication number: JPS639545U
Application number: JP10345886U
Authority: JP
Priority date: 1986-07-04
Filing date: 1986-07-04
Publication date: 1988-01-22

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る変速操作機構
の縦断背面図、第２図は同機構の横断平面図、第
３図は同機構の変速機に対する組付状態を示す概
略斜視図、第４図は各シヤフトとピストン、バル
ブスプールとの連結部を示す部分斜視図、第５図
は第２図の矢印方向からみた一部切欠側面図、
第６図はバネ部材の正面図、第７図ａ〜ｄはシー
ルリングの組付順序を説明する概略図である。符号の説明、１０……変速操作機構、１１……
第１シヤフト、１２ａ……第２シヤフト、１２ｂ
……レバーシヤフト、１２ｂ_１……レバー部、１
３……シリンダ、１４……ピストン、１４ｍ……
係合凹所、１４ｎ……長孔、１５……バルブスプ
ール、１５ｇ……係合凹所、１７ａ……第１連結
レバー、１７ｂ……第２連結レバー、１７ｂ_１，
１７ｂ_２……ストツパ、１８……バネ部材、２３
……操作レバー。 FIG. 1 is a vertical cross-sectional rear view of a transmission operating mechanism according to an embodiment of the present invention, FIG. 2 is a cross-sectional plan view of the same mechanism, and FIG. 3 is a schematic perspective view showing the mechanism assembled to a transmission. FIG. 4 is a partial perspective view showing the connection between each shaft, piston, and valve spool, and FIG. 5 is a partially cutaway side view seen from the direction of the arrow in FIG. 2.
FIG. 6 is a front view of the spring member, and FIGS. 7a to 7d are schematic diagrams illustrating the assembly order of the seal ring. Explanation of symbols, 10... Speed change operation mechanism, 11...
First shaft, 12a...Second shaft, 12b
...Lever shaft, 12b ₁ ...Lever part, 1
3...Cylinder, 14...Piston, 14m...
Engagement recess, 14n...Long hole, 15...Valve spool, 15g...Engagement recess, 17a...First connection lever, 17b...Second connection lever, 17b ₁ ,
17b ₂ ...Stopper, 18...Spring member, 23
...Operation lever.

Claims

[Scope of utility model registration request]

A first shaft that is rotatably supported within a case cover provided on a mission case and rotates when an operation lever is operated in a shift direction; and a lever that faces inside the mission case; a second shaft that is assembled to be rotatable in the circumferential direction and slidable in the axial direction and that selectively engages each shift head when sliding and operates the shift heads that are engaged when rotating; The power assist mechanism includes a cylinder provided at one end of the case cover and extending perpendicularly to the sides of both shafts, and a liquid-tight inner hole of the cylinder. It is assembled so that it can slide in the axial direction, and the two axial
A hollow shaft-shaped piston partitioned into two oil chambers is assembled into the inner hole of the piston so as to be slidable in the axial direction, and together with the piston constitutes a switching valve mechanism. a rod-shaped valve spool for selectively controlling the supply and discharge of the first shaft; and a rod-shaped valve spool that is rotatably assembled to one end of the first shaft and engages with the valve spool to transmit rotation of the shaft to the valve spool. a first connecting lever that is rotatably assembled to one end of the second shaft and engages with the piston to convert the axial sliding of the piston into the shaft; The piston includes a first engagement recess having a predetermined width in the axial direction on the outer periphery of the piston, and a first engagement recess parallel to the engagement recess and the same. A long hole of a predetermined length extending in the axial direction passing through the inner hole of the piston is provided, and a second hole facing the long hole is provided on the outer periphery of the valve spool.
A manual comprising: an engaging recess; the first connecting lever is engaged with the first engaging recess; and the second connecting lever is engaged with the second engaging recess. Transmission gear change operation mechanism.