JPH0311105U

JPH0311105U -

Info

Publication number: JPH0311105U
Application number: JP7229989U
Authority: JP
Priority date: 1989-06-20
Filing date: 1989-06-20
Publication date: 1991-02-04

Description

[Brief explanation of the drawing]

第１図は本案装置の一実施例の断面図、第２図
は本案装置の作用を説明するための各態様を経時
的に示す説明図、第３図および第４図はいずれも
本案装置の要部を拡大して示す断面図である。Ａ，Ｂ……軸、１……シリンダ、２……大径ピ
ストン、３……小径ピストン、４……出入口、５
……大径のばね、６……端部内壁面、７……小径
のばね、８……駒、９……対接面、１０……突起
体、１１……あそび、１２……ストツパー、１３
……すきま。 FIG. 1 is a cross-sectional view of one embodiment of the device of the present invention, FIG. 2 is an explanatory diagram showing various aspects over time to explain the action of the device of the present invention, and FIGS. 3 and 4 are both of the device of the present invention. FIG. 3 is an enlarged cross-sectional view of main parts. A, B...shaft, 1... cylinder, 2... large diameter piston, 3... small diameter piston, 4... entrance/exit, 5
... Large diameter spring, 6 ... End inner wall surface, 7 ... Small diameter spring, 8 ... Piece, 9 ... Contact surface, 10 ... Protrusion, 11 ... Play, 12 ... Stopper, 13
……Gap.

Claims

[Claims for Utility Model Registration] (1) A pair of outputs having substantially the same stroke in the same direction are individually taken out to the outside of the hydraulic cylinder by two shafts A and B protruding from both sides of the cylinder. As a configuration for this purpose, a large diameter piston attached to the end of shaft A and a small diameter piston attached to the end of shaft B are arranged so that their surfaces face each other within the cylinder, and A pressure fluid inlet/outlet is provided at the end of the large-diameter piston, and a large-diameter spring that biases the shaft A in the direction of pushing it out of the cylinder is connected between the surface of the large-diameter piston and the inner wall surface of the end of the cylinder on the small-diameter piston side. In addition to interposing the axis B
A small-diameter spring that biases the small-diameter spring in the direction of drawing it into the cylinder is interposed at a position inside the large-diameter spring and between the back surface of the small-diameter piston and the inner wall surface of the cylinder end on the side of the small-diameter piston. A fluid pressure cylinder featuring: (2) A plurality of pieces are arranged in a row along the circumference between the large diameter spring and the inner wall surface of the cylinder end and between the small diameter spring and the inner wall surface of the cylinder end,
Each of the pieces has a contact surface that contacts the two springs on the side that contacts the end surfaces of the two springs, and a contact surface that acts on the contact surface on the side that contacts the inner wall surface of the cylinder end. 2. The fluid pressure cylinder according to claim 1, wherein the fluid pressure cylinder is provided with a protrusion for inclining the contact surface in response to a mutual variation in the pressing force of the spring. (3) The large-diameter piston and the cylinder-side end of the shaft A are attached in such a manner that a play is provided between the movement of the large-diameter piston and the movement of the shaft A that is driven by the movement; Claims (1) to (2) for registering a utility model, which is provided with a stopper to adjustably limit the distance that the small-diameter piston moves in the direction of pulling in the shaft B by the pressing force of the small-diameter spring.
Hydraulic cylinder as described in section.