JPS6185704U

JPS6185704U -

Info

Publication number: JPS6185704U
Application number: JP17091484U
Authority: JP
Priority date: 1984-11-09
Filing date: 1984-11-09
Publication date: 1986-06-05

Description

[Brief explanation of drawings]

第１図、第２図および第３図は本考案の一実施
例であるシリンダ装置を示す各作動状態の各縦断
面図である。第４図は本考案の他の実施例を示す
縦断面図である。１……異径シリンダ、２……大径室、３……小
径室、３……段部、５……第１ポート、６……第
２ポート、７……排気ポート（排出ポート）、９
……第１ピストン、１０……大径部、１１……小
径部、１２，１８，１９，２１……シールリング
、１３……長溝、１４……シリンダ室、１５……
第２ピストン、１６……小径部、１７……大径部
、２０……ピストンロツド、２２……給排気回路
、２３……第１切換弁、２３ｅ……排気ポート（
排出ポート）、２４……第２切換弁、２４ｅ……
排気ポート（排出ポート）、２５……給気路、２
６……エア供給源、２７……排気路、２８……フ
イルタ、２９……連絡路、３０……第３ピストン
、３１……第３ポート、３２……第３切換弁。 FIGS. 1, 2, and 3 are longitudinal sectional views showing a cylinder device according to an embodiment of the present invention in each operating state. FIG. 4 is a longitudinal sectional view showing another embodiment of the present invention. 1... Different diameter cylinder, 2... Large diameter chamber, 3... Small diameter chamber, 3... Step part, 5... First port, 6... Second port, 7... Exhaust port (exhaust port), 9
...First piston, 10... Large diameter part, 11... Small diameter part, 12, 18, 19, 21... Seal ring, 13... Long groove, 14... Cylinder chamber, 15...
2nd piston, 16... Small diameter part, 17... Large diameter part, 20... Piston rod, 22... Supply and exhaust circuit, 23... First switching valve, 23e... Exhaust port (
discharge port), 24...second switching valve, 24e...
Exhaust port (exhaust port), 25...Air supply path, 2
6...Air supply source, 27...Exhaust path, 28...Filter, 29...Connection path, 30...Third piston, 31...Third port, 32...Third switching valve.

Claims

[Claims for Utility Model Registration] (1) A plurality of pistons are slidably fitted in a cylinder so that they can be displaced from each other,
In the cylinder, a plurality of supply/discharge ports each connected to each switching valve are opened so as to relatively displace the piston, and a discharge port is opened so as to assist the relative displacement of the piston. Further, a cylinder device in which the discharge port and each discharge port in the switching valve of the supply/discharge port are connected. (2) The cylinder is composed of an irregularly shaped cylinder having a large diameter chamber and a small diameter chamber, and a plurality of pistons are slidably fitted into the large diameter chamber and the small diameter chamber of the different diameter cylinder. A first piston having a diameter portion and a small diameter portion and forming a cylinder chamber, and a small diameter portion and a large diameter portion that are slidably fitted into the cylinder chamber of the first piston and the small diameter chamber of a different diameter cylinder, respectively. and a second piston that protrudes so as to move integrally with the piston rod that passes through the small diameter chamber of the different diameter cylinder, and the first and second supply and discharge ports are connected to the large diameter chamber of the different diameter cylinder. The diameter chamber and the small diameter chamber are respectively opened at opposite ends, and the discharge port of the cylinder is opened at the end of the large diameter chamber on the small diameter chamber side, and the relative displacement of the first piston and the second piston is controlled. 2. The cylinder device according to claim 1, wherein the piston rod is configured to be set at three positions. (3) The cylinder is composed of an irregularly shaped cylinder having a large diameter chamber and a small diameter chamber, and a plurality of pistons are slidably fitted into the large diameter chamber of the different diameter cylinder to form the cylinder chamber. a first piston having a large-diameter portion and a small-diameter portion that are slidably fitted into a cylinder chamber of the third piston and a small-diameter chamber of a cylinder of different diameters, forming a cylinder chamber; , a small diameter portion and a large diameter portion are slidably fitted into the small diameter chambers of the first piston cylinder chamber and the different diameter cylinder chamber, respectively, and integrally move the piston rod passing through the small diameter chambers of the different diameter cylinders. The first, second and third supply/discharge ports are configured by a third port for displacing the third piston toward the piston rod, and a second piston that protrudes so as to a first port that communicates with the cylinder chamber of the three pistons and displaces the first piston toward the piston rod; and a first port that displaces the third piston, first piston, and second piston toward the opposite side of the piston rod. The discharge port is opened at the end of the large diameter chamber of the irregular cylinder on the small diameter chamber side, and the piston rod is moved by the relative displacement of the third piston, first piston, and second piston. The cylinder device according to claim 1, wherein the cylinder device is configured to be set at four predetermined positions.