JPS60190852U

JPS60190852U - Pin connection structure between support bracket and mating bracket

Info

Publication number: JPS60190852U
Application number: JP1984076054U
Authority: JP
Inventors: 憲三柳橋; 大野　俊弘
Original assignee: 日立建機株式会社
Priority date: 1984-05-24
Filing date: 1984-05-24
Publication date: 1985-12-18

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図はこの考案の一実施例を示す断面正面図、第２図
は第１図の■−■断面図、第３図は油圧ショベルの一例
を示す側面図、第４図は従来の支持ブラケットと相手ブ
ラケットとのピン連結構造を示す第３図におけるｒＶ−
ＩＶ断面拡大図、第５図は第４図のＶ部を示す断面拡大
図、第６図は第４図のＶｌ−ＶＩ断面図である。５・・・・・・アーム、５ａ・・・・・・片側支持ブラ
ケット、６・・・・・・パケット、６ａ、６ｂ・・・・
・・相手ブラケット、１５・・・・・・ピン、１６・・
・・・・ブツシュ、１７・・・・・・ブツシュ、１８・
・・・・・ブツシュ、１９・・・・・・封止体、１９ａ
・・・・・・封止体、１９ｂ・・・・・・外環、１９ｃ
・・・・・・内環、２０・・・・・・Ｏリング、２１・
・・・・・グリスニップル、２５・・・・・・袖穴、２
６・・・・・・油溝、２７・・・・・・袖穴、２９・・
・・・・グリス吐出穴、３０・・・・・・油溜り。第１図透穴第４図 ′■′Fig. 1 is a sectional front view showing an embodiment of this invention, Fig. 2 is a sectional view taken along the line -■ in Fig. 1, Fig. 3 is a side view showing an example of a hydraulic excavator, and Fig. 4 is a conventional support. rV- in Fig. 3 showing the pin connection structure between the bracket and the mating bracket.
FIG. 5 is an enlarged cross-sectional view showing the V section in FIG. 4, and FIG. 6 is a cross-sectional view taken along the line Vl-VI in FIG. 4. 5...Arm, 5a...One side support bracket, 6...Packet, 6a, 6b...
...Opponent bracket, 15...Pin, 16...
...butshu, 17...butshu, 18.
...butsu, 19... sealing body, 19a
... Sealing body, 19b ... Outer ring, 19c
...Inner ring, 20...O ring, 21.
... Grease nipple, 25 ... Sleeve hole, 2
6...Oil groove, 27...Cuff hole, 29...
...Grease discharge hole, 30...Oil pool. Figure 1: Through hole Figure 4'■'

Claims

[Scope of utility model registration request]

A bushing is attached to each of the support bracket and a mating bracket that sandwiches the support bracket, and a pin inserted into the hole of each bush connects the support bracket and the mating bracket so that they can swing relative to each other. An oil reservoir is formed between the support bracket and the mating bracket, an oil path is provided on the pin that extends to the oil reservoir, and an O-ring is attached to the outer periphery of the gap between the end faces of the support bracket and the mating bracket. In the pin connection structure, a sealing body that forms a grease reservoir connected to an oil reservoir between the bushing of the support bracket and the pin is provided on both end surfaces of the bushing of the support bracket, and a lip portion of the sealing material in the sealing body is supported. A support that is attached to the end surface of a bushing of a bracket and has a grease discharge hole in its sealing body that communicates the grease reservoir of the sealing body with the gap between the end surfaces of the support bracket and the mating bracket. Pin connection structure with bracket.