JPH0341230U

JPH0341230U -

Info

Publication number: JPH0341230U
Application number: JP10188889U
Authority: JP
Priority date: 1989-08-31
Filing date: 1989-08-31
Publication date: 1991-04-19

Description

[Brief explanation of drawings]

第１図は本考案実施例によるクラツチ作動装置
の要部構造を示す断面図、第２図は第１図におけ
る符号で示す部分の拡大断面図、第３図は第２
図における符号−線で示す方向の矢視断面図
、第４図は第１図に示した本考案実施例によるク
ラツチ作動装置の作用を説明するための第２図相
当の断面図、第５図は従来のクラツチ作動装置の
構造を示す第１図相当の断面図、第６図は第５図
中、符号−線で示す方向の矢視断面図である
。１０……クラツチ作動用シリンダ、１２……シ
リンダ孔、１４……第１ピストン、１６……第２
ピストン、１６Ａ……エア抜き孔、１６Ｂ……弁
座、１８……作動ロツド、２０……クラツチ操作
レバー、２４……弁、３０……作動油室、３４…
…貯油室、３６……リテーナ、３８……プツシユ
ロツド、４２……オイルリザーバまたはタンク、
５０……ヨーク、６２……電磁弁、６４……圧縮
空気源、６６……人為的操作スイツチまたはコン
トローラ、７０……ストツパ、７１……第３ピス
トン、７４……等圧弁。 FIG. 1 is a sectional view showing the main structure of a clutch actuating device according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the portion indicated by the reference numeral in FIG.
4 is a sectional view taken in the direction indicated by the symbol--line in the figure; FIG. 4 is a sectional view corresponding to FIG. 2 for explaining the operation of the clutch actuating device according to the embodiment of the present invention shown in FIG. 1; and FIG. 1 is a sectional view corresponding to FIG. 1 showing the structure of a conventional clutch actuating device, and FIG. 6 is a sectional view taken in the direction indicated by the symbol - line in FIG. 5. 10...Clutch actuation cylinder, 12...Cylinder hole, 14...First piston, 16...Second
Piston, 16A... Air vent hole, 16B... Valve seat, 18... Operating rod, 20... Clutch operating lever, 24... Valve, 30... Hydraulic oil chamber, 34...
... Oil storage chamber, 36 ... Retainer, 38 ... Push rod, 42 ... Oil reservoir or tank,
50... Yoke, 62... Solenoid valve, 64... Compressed air source, 66... Human operation switch or controller, 70... Stopper, 71... Third piston, 74... Equal pressure valve.

Claims

[Scope of Claim for Utility Model Registration] A cylinder with a hole that constitutes a hydraulic oil chamber inside, and a cylinder that is slidably inserted into the cylinder hole and displaces in the axial direction to connect and disconnect the clutch. a first piston; a second piston that is slidably inserted into the cylinder hole and cooperates with the first piston to set the pressure in the hydraulic fluid chamber; and a pneumatic response device. a push rod that is driven by the second piston and causes the second piston to displace in the clutch disengaging direction; an oil storage chamber in constant communication with an oil reservoir in contact with the oil storage chamber; and an oil storage chamber slidably inserted within the oil storage chamber within an extension of the second piston and opened when the second piston is in a rest position. a valve device that connects the hydraulic oil chamber and the oil storage chamber and automatically closes to cut off communication between the hydraulic oil chamber and the oil storage chamber when the piston is displaced in the clutch disengagement direction by the push rod; a third piston provided therein; and a third piston provided in the second piston at a communication portion between an oil storage chamber and a hydraulic oil chamber, which are disposed in a position facing the third piston in the second piston and are opened and closed by the valve device. an equal pressure valve that opens to communicate between the chambers and allow hydraulic oil to flow back into the oil storage chamber at the end of the displacement in the clutch contact direction, and between the oil reservoir and the hydraulic oil chamber via the oil storage chamber. A clutch actuating device characterized by having a structure that blocks an intrusion path of outside air.