JPS6059804U - Hydraulic cylinder shock absorber - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の１実施例の側断面図、第２図、第３図
、第４図はそれぞれ作動状態を示す要部の側断面図、第
５図は従来例め要部の側断面図である。− （図面の主要な部分を表わす符号の説明）、３・・・・
・・ピストン、５・・・・・・シリンダー、１５・・・
・・・緩衝軸部、１７・・・・・・シリンダーヘッド、
２７・・・・・・圧油通路、２９・・・・・・緩衝環、
３１・・・・・・係止部、３３・・・・・・内径部、３
５・・・・・・油路、３９・・・・・・絞り孔。 １．　　　第２図 −第４図Fig. 1 is a side sectional view of one embodiment of the present invention, Figs. 2, 3, and 4 are side sectional views of the main parts showing the operating state, respectively, and Fig. 5 is a side sectional view of the main parts of the conventional example. FIG. - (Explanation of symbols representing main parts of the drawing), 3...
...Piston, 5...Cylinder, 15...
...Buffer shaft section, 17...Cylinder head,
27...Pressure oil passage, 29...Buffer ring,
31...Locking part, 33...Inner diameter part, 3
5... Oil passage, 39... Throttle hole. 1. Figures 2-4

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外側面を、シリンダーヘッド１７の内側面に当接自在に
係止され、外周付近の内側面を、シリンダ−５内径面の
係止部３１に当接自在に係止される緩衝環２９を、前記
シリンダーヘッド１７の内側面と前記係止部３１との間
を、適宜な遊隙をもって軸方向に往復移動自在に設け、
ピストン３の外側面に突出する緩衝軸部１５を前記緩衝
環２９の低摩擦材料に−より形成された内径部３３に適
宜な間隙をもって嵌入自在に設け、前記緩衝環２９を貫
通する油路３５を絞り孔３９を介して圧油通路２７に連
通して設けたことを特徴とする流体圧シリンダーの緩衝
装置。A buffer ring 29 whose outer surface is abutably engaged with the inner surface of the cylinder head 17, and whose inner surface near the outer periphery is abutably abutted with a locking portion 31 on the inner diameter surface of the cylinder 5; A space between the inner surface of the cylinder head 17 and the locking portion 31 is provided so as to be movable back and forth in the axial direction with an appropriate clearance;
A buffer shaft portion 15 protruding from the outer surface of the piston 3 is provided in an inner diameter portion 33 formed of a low-friction material of the buffer ring 29 so that it can be freely fitted with an appropriate gap, and an oil passage 35 passing through the buffer ring 29 is provided. A shock absorbing device for a fluid pressure cylinder, characterized in that it is provided in communication with a pressure oil passage 27 via a throttle hole 39.