JPS62119510U

JPS62119510U -

Info

Publication number: JPS62119510U
Application number: JP805586U
Authority: JP
Priority date: 1986-01-22
Filing date: 1986-01-22
Publication date: 1987-07-29
Also published as: JPH0424162Y2

Description

[Brief explanation of drawings]

第１図は本考案に係る流体圧シリンダのクツシ
ヨン装置を示す断面図であつて、ピストンが一方
のストローク終端に近づいた状態を示しており、
第２図はピストンが一方のストローク終端から他
方のストローク終端に向かつてスタートを開始し
ている状態を示す第１図と同様な断面図、第３図
は第１図の―線断面図である。１……シリンダチユーブ、２……給排ポート、
７……ピストン、８……ピストンロツド、９……
クツシヨン用リング、１３……連通孔、１９……
圧力導入用溝部。 FIG. 1 is a sectional view showing a cushion device for a fluid pressure cylinder according to the present invention, showing a state in which the piston approaches one end of its stroke;
Fig. 2 is a sectional view similar to Fig. 1, showing a state in which the piston is starting from one end of its stroke to the other end of its stroke, and Fig. 3 is a sectional view taken along the line - - in Fig. 1. . 1... Cylinder tube, 2... Supply/discharge port,
7... Piston, 8... Piston rod, 9...
Cushion ring, 13...Communication hole, 19...
Groove for introducing pressure.

Claims

[Scope of utility model registration request]

On one or both end surfaces of a piston that slides inside a cylinder tube equipped with supply and discharge ports at the ends,
A cushion ring that slides within the cylinder tube and is capable of sliding in the axial direction between a position where one end surface is in close contact with the end surface of the piston and a position slightly separated from the end surface is fitted onto the piston rod or piston. The cushion ring has a communication hole that opens on both end surfaces, and a pressure introduction groove that can communicate with the supply/discharge port at the end of the stroke is formed between the opposing surfaces of the cushion ring and the piston. However, as the piston approaches the end of its stroke, the supply/discharge port is gradually closed by the cushion ring.