JPS6297303U

JPS6297303U -

Info

Publication number: JPS6297303U
Application number: JP19061985U
Authority: JP
Priority date: 1985-12-10
Filing date: 1985-12-10
Publication date: 1987-06-20
Anticipated expiration: 2000-12-10
Also published as: JPH0520884Y2

Description

[Brief explanation of the drawing]

第１図は従来技術に係る速度制御装置の説明図
、第２図は本考案に係る速度制御機構を有するシ
リンダ装置のピストンが一方のストローク端に位
置する場合の装置全体の説明図、第３図は第２図
に示す装置のピストンが他方のストローク端側に
移動した場合の装置全体の説明図、第４図は第２
図に示す装置のピストンが他方のストローク端に
位置する場合の一部省略説明図である。５０……切換弁、５２，５４……スピードコン
トローラ、５６……逆止め弁、５８……可変絞り
弁、６０……流体圧シリンダ、６２……圧力源、
６４……逆止め弁、６６……可変絞り弁、６８…
…逆止め弁、７０……可変絞り弁、７２，７４，
７６……孔部、７８……ピストン、８０，８２…
…室、８４……ピストンロツド。 FIG. 1 is an explanatory diagram of a speed control device according to the prior art, FIG. 2 is an explanatory diagram of the entire device when the piston of a cylinder device having a speed control mechanism according to the present invention is located at one stroke end, and FIG. The figure is an explanatory diagram of the entire device when the piston of the device shown in FIG. 2 moves to the other stroke end side, and FIG.
FIG. 2 is a partially omitted explanatory diagram when the piston of the device shown in the figure is located at the other stroke end. 50...Switching valve, 52, 54...Speed controller, 56...Check valve, 58...Variable throttle valve, 60...Fluid pressure cylinder, 62...Pressure source,
64...Check valve, 66...Variable throttle valve, 68...
...Check valve, 70...Variable throttle valve, 72, 74,
76...hole, 78...piston, 80, 82...
...Chamber, 84...Piston rod.

Claims

[Claims for Utility Model Registration] (1) In a fluid pressure cylinder that moves the piston by alternately supplying fluid to both chambers of the cylinder partitioned by a piston that slides within the cylinder, A hole is formed in the extending side wall, and a passage branching from a first passage communicating with one chamber defined by the piston of the cylinder and communicating with the hole is provided to supply pressure fluid. A cylinder device having a speed control mechanism, characterized in that a switching valve connected to a source is connected to a second passage communicating with the first passage and the other chamber. (2) A cylinder device having a speed control mechanism configured to interpose a check valve and a variable throttle valve in the middle of a passage branching from the first passage in the apparatus set forth in claim 1 of the utility model registration claim. . (3) Utility model registration In the device described in claim 1, a first speed controller is disposed in the middle of a first passage communicating with one chamber of the cylinder, and communicating with the other chamber of the cylinder. A cylinder device having a speed control mechanism including a second speed controller disposed in a second passage. (4) In the device set forth in claim 1 of the utility model registration claim, the piston is provided with a flow path that opens from one end surface to the outer circumferential surface of the piston, and the piston is directed toward one stroke end. The flow path is configured to communicate with a hole formed in a side wall of the cylinder when the piston moves, and the outer circumferential surface closes the hole when the piston reaches one stroke end. A cylinder device with a speed control mechanism.