JPS5833851U

JPS5833851U - Gear shift switching device

Info

Publication number: JPS5833851U
Application number: JP12781981U
Authority: JP
Inventors: 石川　睦男
Original assignee: 東洋電機製造株式会社
Priority date: 1981-08-31
Filing date: 1981-08-31
Publication date: 1983-03-05

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 the drawing]

第１図は従来のギヤ変速切換え装置の一例におけるクラ
ッチ部が中立状態の要部横断面図、第２図は本考案にか
かるギヤ変速切換え装置の一実施例におけるクラッチ部
が中立状態の要部横断面図である。１・・・ギヤ変速機構、２，２Ａ・・・ピストン機構、
３・・・ギヤケース、４・・・入力軸、５・・・出力軸
、６゜７・・・駆動歯車、８，９・・・被駆動歯車、８
Ａ、９Ａ・・・白画歯車、１０．ＩＯＡ・・・ベアリン
グ、１１・・・インチドライバ、１１Ａ、ＩＩＢ・・・
外歯歯車、１２・・・シフトレバ−１１３，１３Ａ・・
・シリンダ、１４．１４Ａ、１４Ｂ・・・ピストン、１
５．１５Ａ・・・ピストン機構ド、１６・・・継手、１
７・・・支え腕、１８．１９・・・リミットスイッチ、
２０，２１゜２０Ａ、２０Ｂ、２１Ａ・・・流量調整弁
、２２・・・三位置切換えソレノイドバルブ、２３・・
・カム、２４゜２５・・・二位置切換えソレノイドバル
ブ。FIG. 1 is a cross-sectional view of a main part of an example of a conventional gear shift switching device with a clutch section in a neutral state, and FIG. 2 is a main part of an embodiment of a gear shift switching device according to the present invention with a clutch section in a neutral state. FIG. 1... Gear transmission mechanism, 2,2A... Piston mechanism,
3... Gear case, 4... Input shaft, 5... Output shaft, 6゜7... Drive gear, 8, 9... Driven gear, 8
A, 9A... White drawing gear, 10. IOA...bearing, 11...inch driver, 11A, IIB...
External gear, 12...Shift lever 113, 13A...
・Cylinder, 14.14A, 14B...Piston, 1
5.15A...Piston mechanism, 16...Coupling, 1
7... Support arm, 18.19... Limit switch,
20, 21゜20A, 20B, 21A...Flow rate adjustment valve, 22...Three position switching solenoid valve, 23...
・Cam, 24°25...2 position switching solenoid valve.

Claims

[Scope of utility model registration request]

' In a gear shift switching device that changes rotation in two stages, the inner diameter of the cylinder of the piston mechanism that is operated by pneumatic or hydraulic pressure to operate the clutch part that changes speed between high speed, low speed, and neutral is large, It has two cylindrical shapes with different small diameters, and the cylindrical parts are joined at the center of the cylinder to form a step, and the cylindrical parts have pistons with different pressure receiving areas in the piston diameter corresponding to the inner diameter of each cylinder. a first fluid chamber configured on the small diameter cylinder side, and a second fluid chamber configured between the small diameter piston and the large diameter piston in the step part at the center of the cylinder. and a third fluid chamber configured on the large-diameter cylinder side so that 32 fluid chambers are formed, and only the first fluid chamber is pressurized, or the state of the third fluid chamber is not affected. The speed is switched between high speed and low speed depending on whether the second fluid chamber is pressurized, and when the first and third fluid chambers are pressurized, the large diameter piston comes into contact with the step part of the cylinder and stops operation, A gear shift switching device characterized in that the operation of the small diameter piston is regulated in a state where it is aligned with the end face of the large diameter piston to maintain a neutral position.