JPH01143464U

JPH01143464U -

Info

Publication number: JPH01143464U
Application number: JP4123688U
Authority: JP
Priority date: 1988-03-28
Filing date: 1988-03-28
Publication date: 1989-10-02

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係るリバースギヤ抜
け防止構造を備えた歯車変速機の縦断面図、第２
図は第１図に示したリバースギヤ装置の拡大縦断
面図、第３図は第２図の―矢視図、第４図な
いし第７図はリバースギヤ装置におけるリバース
プライマリギヤとリバースアイドルギヤの噛合状
態を示す展開図、第８図は第１図におけるクラツ
チハブとクラツチハブスリーブとの噛合状態を示
す展開図、第９図は第８図の部拡大図である。１……歯車変速機、６……プライマリシヤフト
、８……セカンダリシヤフト、１１〜１５……プ
ライマリギヤ、１６〜２０……セカンダリギヤ、
２１〜２５……ギヤ装置、２６〜２８……同期噛
合装置、２９……クラツチハブ、３２……クラツ
チハブスリーブ、３６……リバースギヤ装置、３
７……リバースプライマリギヤ、３８……リバー
スセカンダリギヤ、３９……リバースアイドルギ
ヤ、４０……アイドルシヤフト、４１……ストツ
パーギヤ、４２……トルク伝達ギヤ、４４……リ
ターンスプリング、４６……係合溝、４７……係
合突起。 FIG. 1 is a longitudinal sectional view of a gear transmission equipped with a reverse gear slippage prevention structure according to an embodiment of the present invention, and FIG.
The figure is an enlarged vertical cross-sectional view of the reverse gear device shown in FIG. 1, FIG. 3 is a view taken along the - arrow in FIG. 2, and FIGS. FIG. 8 is a developed view showing the engaged state of the clutch hub and clutch hub sleeve in FIG. 1, and FIG. 9 is an enlarged view of FIG. 8. 1...Gear transmission, 6...Primary shaft, 8...Secondary shaft, 11-15...Primary gear, 16-20...Secondary gear,
21-25... Gear device, 26-28... Synchronous mesh device, 29... Clutch hub, 32... Clutch hub sleeve, 36... Reverse gear device, 3
7... Reverse primary gear, 38... Reverse secondary gear, 39... Reverse idle gear, 40... Idle shaft, 41... Stopper gear, 42... Torque transmission gear, 44... Return spring, 46... Engagement Groove, 47...engaging protrusion.

Claims

[Scope of utility model registration request]

A reverse primary gear provided on a primary shaft having a gear train and connected to the engine via a clutch, and a reverse secondary gear provided on a secondary shaft having a gear train meshing with the gear train on the primary shaft. A gear transmission equipped with a selective sliding type reverse gear device comprising a gear and a reverse idle gear that is provided to be slidably movable with respect to the idle shaft and meshes with the reverse primary gear and the reverse secondary gear. One of the reverse primary gear, reverse secondary gear, and reverse idle gear that constitute the gear mechanism is composed of a stopper gear and a torque transmission gear, which each have a gear portion and can rotate relative to each other and slide integrally. It has a two-part structure, and when torque is transmitted from the reverse primary gear to the reverse idle gear, the stopper gear and the torque transmission gear rotate relative to each other in response to the torque, and the stopper gear and the torque transmission gear rotate relative to each other in response to the torque. While the tooth end face and the tooth end face of the stopper gear are able to engage with each other in the sliding direction, when the torque transmission is released, the biasing means engages the tooth end face with the tooth end face of the stopper gear in a direction opposite to the relative rotation direction during torque transmission. 1. A reverse gear slip-out prevention structure for a transmission, characterized in that the reverse gear is rotated and is configured such that the teeth of the stopper gear and the teeth of the torque transmission gear are positioned at mutually opposing positions by a regulating means.