JPS60118005U

JPS60118005U - Hydraulic cylinder for agricultural machinery

Info

Publication number: JPS60118005U
Application number: JP1984007100U
Authority: JP
Inventors: 加藤　雅徳
Original assignee: 三陽機器株式会社
Priority date: 1984-01-20
Filing date: 1984-01-20
Publication date: 1985-08-09
Also published as: JPH0213763Y2

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

[Brief explanation of drawings]

第１図乃至第３図は本考案の実施例を示し、第１図は油
圧シリンダの縦断正面図、第２図は要部の拡大断面図、
第３図はスクレーパ用リップの別実施例を示す第２図相
当図であり、第４図は従来例を示す一部切欠ぎ縦断正面
図である。１４・・・ピストン、１５・・・シリンダ本体、１６・
１６ａ・・・シリンダカバー、１７・・・油室、２１・
・・ピストンロッド、２２・・・ロッドＬ２３・・・パ
ツキン溝、２４・・・パツキン、２６・・・密封用リッ
プ、２７・・・２４の外周面、２８・・・スクレーパ用
リップ、２９・・・１４の外周面、３０・・・小孔。1 to 3 show an embodiment of the present invention, FIG. 1 is a longitudinal sectional front view of a hydraulic cylinder, FIG. 2 is an enlarged sectional view of the main part,
FIG. 3 is a view corresponding to FIG. 2 showing another embodiment of the scraper lip, and FIG. 4 is a partially cutaway longitudinal sectional front view showing a conventional example. 14...Piston, 15...Cylinder body, 16.
16a... Cylinder cover, 17... Oil chamber, 21.
... Piston rod, 22... Rod L23... Packing groove, 24... Packing, 26... Sealing lip, 27... Outer circumferential surface of 24, 28... Lip for scraper, 29. ...14 outer peripheral surface, 30...small hole.

Claims

[Claims for Utility Model Registration] 1. Cylinder covers 16 on both end surfaces of the cylinder body 15.
16a is fixed, and the piston 1 is inserted into this cylinder body 15.
4 is slidably inserted and fitted, an oil chamber 17 is formed between the piston 14 and at least one cylinder cover 16 in the cylinder body 15, and the piston rod 21 to which the piston 14 is fixed is inserted into at least one cylinder cover 16a. A fitting groove 23 is formed in an annular shape on the outer peripheral surface 29 of the piston 14. A piston fitting 24 is fitted into the fitting groove 23, and the piston fitting 24 connects the piston 14 and the cylinder body. 15, a sealing lip 26 and a scraper lip 28 are integrally formed in a mountain shape on the outer peripheral surface 27 of the packing 24. , a hydraulic cylinder for agricultural machinery, characterized in that the scraper lip 28 is positioned facing the oil chamber 17 side, and each upper end edge of the gasket 24 is brought into elastic contact with the inner circumferential surface 25 of the cylinder body 15. . 2. Scope of Utility Model Registration In the hydraulic cylinder for agricultural machinery described in claim 1, the seal 24 provided with the oil seal lip 26 and the scraper lip 28 is attached to one side of the cylinder cover 16a on the side facing the piston rod 21. It also fits into the packing groove 23 recessed in the part. 3. In the hydraulic cylinder for agricultural machinery described in claim 1 or 2 of the utility model registration claim, a sealing lip 26 provided on the outer peripheral surface 27 of the packing 24 and a scraper lip 28 are provided to prevent oil from running out. The small hole 30 was opened.