JPH0191161U

JPH0191161U -

Info

Publication number: JPH0191161U
Application number: JP18734987U
Authority: JP
Priority date: 1987-12-08
Filing date: 1987-12-08
Publication date: 1989-06-15

Description

[Brief explanation of the drawing]

第１図ないし第６図は本考案の一実施例による
誤操作防止機構を説明するための図であり、第１
図はその断面正面図、第２図はそのシフトパター
ンを示す模式図、第３図はセレクト・シフトケー
ス廻りの断面側面図、第４図はその断面平面図、
第５図は該実施例機構が採用された変速装置の側
面図、第６図ａないし第６図ｄはその動作を説明
するための断面正面図である。図において、１は変速装置、４は変速機ケース
、２３はセレクト・シフトケース、２３ａは回動
規制面、２３ｂは軸移動規制面、２４はセレクト
・シフト軸、２６はシフトレバー、２８はストツ
パ部材、Ｎ３は中立位置、Ｓ３は所定のシフト操
作線である。 1 to 6 are diagrams for explaining an erroneous operation prevention mechanism according to an embodiment of the present invention.
The figure is a cross-sectional front view, FIG. 2 is a schematic diagram showing the shift pattern, FIG. 3 is a cross-sectional side view of the select shift case, and FIG. 4 is a cross-sectional plan view.
FIG. 5 is a side view of a transmission employing the mechanism of this embodiment, and FIGS. 6a to 6d are sectional front views for explaining its operation. In the figure, 1 is a transmission, 4 is a transmission case, 23 is a select shift case, 23a is a rotation regulating surface, 23b is a shaft movement regulating surface, 24 is a select shift shaft, 26 is a shift lever, and 28 is a stopper. The member N3 is a neutral position, and S3 is a predetermined shift operation line.

Claims

[Scope of utility model registration request]

The select shift lever is fixed inside the select shift case formed in the transmission case.
A vehicular transmission in which a shift shaft is rotatably and axially movable and one forward gear and one reverse gear are arranged on a predetermined shift operation line with a neutral position in between, from the forward gear to An erroneous operation prevention mechanism that prevents overshifting to reverse gear beyond the neutral position when returning to the neutral position,
Attach the stopper member to the select/shift shaft while biasing it in the rotational direction and axial direction, and attach the stopper member to the select/shift shaft.
A rotation restriction surface parallel to the predetermined shift operation line and a shaft movement restriction surface perpendicular to the predetermined shift operation line are formed on the wall surface of the shift case, and the rotation restriction surface prevents rotation of the stopper member when selected on the predetermined shift operation line. At the same time, when the gear is shifted from the select position to the forward gear, the rotation prevention is released. What is claimed is: 1. An erroneous operation prevention mechanism for a vehicle transmission, characterized in that it prevents directional movement and releases the axial movement prevention when returning from the neutral position to a reference position.