JPS58130158U

JPS58130158U - Gear transmission gear change operation mechanism

Info

Publication number: JPS58130158U
Application number: JP2576482U
Authority: JP
Inventors: 井上　理夫
Original assignee: いすゞ自動車株式会社
Priority date: 1982-02-26
Filing date: 1982-02-26
Publication date: 1983-09-02

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は一般的な歯車変速機のシフトパターン図、第２
図は従来の変速操作機構についての平面図、第３図は本
考案に係る変速操作機構の正面断、面図、第４図は第５
速・後進段へのセレクト状態を示す水平断面図、第５図
は第５速段へのシフト状態を示す水平断面図、第６図は
第５速段からシフトダウンの過程を示す水平断面図であ
る。１０：変速レバー、１２〜１４：シフトブロック、１５
ａ、１６ａ：傾斜面、２２〜２４：シフトロッド、３０
：ケース、３６：切欠、３７：ばね、３８：ロッド、３
９：軸。Figure 1 is a shift pattern diagram of a general gear transmission, Figure 2 is a shift pattern diagram of a general gear transmission.
The figure is a plan view of a conventional speed change operation mechanism, FIG. 3 is a front cross-sectional view and side view of the speed change operation mechanism according to the present invention, and
FIG. 5 is a horizontal sectional view showing the state of shifting to the fifth gear; FIG. 6 is a horizontal sectional view showing the process of downshifting from the fifth gear. It is. 10: Gear shift lever, 12-14: Shift block, 15
a, 16a: inclined surface, 22-24: shift rod, 30
: Case, 36: Notch, 37: Spring, 38: Rod, 3
9: Axis.

Claims

[Scope of utility model registration request]

A shift block having a groove extending in a direction perpendicular to the shift rod and engaging with the end of the gear shift lever is provided at the ends of the plurality of shift rods arranged in parallel with each other, and the shift block is provided with a groove that extends in a direction perpendicular to the shift rod and engages with the end of the gear shift lever, and the gear shift is performed by selecting the gear shift lever. A gear transmission operation in which an end of a lever is engaged with one of the shift blocks, and a shift operation of the gear shift lever moves the shift rod in the axial direction to achieve a predetermined meshing of gears. In the mechanism, a V-shaped notch is provided in the side wall of the gear shift lever, and an inclined surface is provided by cutting a corner between a side wall surface on the opposite side of the notch and a side wall surface on the side of a predetermined gear stage, and The case wall is biased by a spring so that its tip protrudes above the shift block that switches between the predetermined gear stage and the reverse gear, and is retractable from above the shift block to the side by an external force. A guide rod is axially supported, the guide rod engages with the notch in response to a shift operation from the predetermined gear stage to a neutral position, and a combined operation of a return direction and a select direction of the shift lever to the neutral position is performed. A speed change operation mechanism for a gear transmission, characterized in that it is configured to be disengaged by.