JPS63121659U

JPS63121659U -

Info

Publication number: JPS63121659U
Application number: JP1109587U
Authority: JP
Priority date: 1987-01-27
Filing date: 1987-01-27
Publication date: 1988-08-08

Description

[Brief explanation of the drawing]

第１図はこの考案にかかるピン固定装置の第１
実施例断面図、第２図は第１図のＤより見た側面
図、第３図は第１実施例内舌付リングの斜視図、
第４図はピン固定操作を示す斜視図、第５図はこ
の考案の第２実施例要部断面図、第６図は第２実
施例内舌付リングの斜視図、第７図はこの考案の
第３実施例要部断面図、第８図は第７図のＦより
見た側面図、第９図は第３実施例内舌付リングの
斜視図、第１０図はバツクホーフロント先端部分
の側面図、第１１図は第１０図のＡ―Ａより見た
従来技術ピン固定装置の断面図、第１２図は他の
従来技術ピン固定装置の断面図、第１３図は第１
２図内ストツパリングのＣより見た側面図である
。１……アーム、２……バケツト、３，３′，１
７，２２……ピン、４，４′，４″，１８，２３
……まわり止めボス、８……ロツクピン、１１，
１９，２４……舌付リング、１２，７……凹溝、
１３……つば形状部、１４，２０，２５……舌部
。 Figure 1 shows the first pin fixing device according to this invention.
Embodiment sectional view, FIG. 2 is a side view seen from D in FIG. 1, FIG. 3 is a perspective view of the inner tongue ring of the first embodiment,
Fig. 4 is a perspective view showing the pin fixing operation, Fig. 5 is a sectional view of the main part of the second embodiment of this invention, Fig. 6 is a perspective view of the internal tongue ring of the second embodiment, and Fig. 7 is the invention. FIG. 8 is a side view of the third embodiment as seen from F in FIG. 7, FIG. 9 is a perspective view of the inner tongue ring of the third embodiment, and FIG. 10 is a front end portion of the backhoe. 11 is a sectional view of the prior art pin fixing device taken along line A-A in FIG. 10, FIG. 12 is a sectional view of another prior art pin fixing device, and FIG. 13 is a sectional view of the
2 is a side view of the stopper ring seen from C in FIG. 2. FIG. 1...Arm, 2...Bucket, 3,3',1
7, 22...pin, 4, 4', 4'', 18, 23
...Rotating stop boss, 8...Lock pin, 11,
19, 24...tongue ring, 12,7...concave groove,
13...Brim shaped part, 14, 20, 25... Tongue part.

Claims

[Scope of utility model registration request]

In a hydraulic excavator in which a bucket is rotatably attached to the tip of the arm using a pin, a locking boss is fixedly provided on the outside of the bucket into which one end of the pin can be inserted, and the locking boss and the pin are passed through in the diametrical direction. a through hole is provided, and a concave groove is provided along the entire circumference of the outer circumference of the detent boss at an intermediate position between the through hole position and the outer end surface of the detent boss, and a lock pin is inserted into the through hole, and
Fit the tongue ring around the outer circumference of the stopper boss,
A pin fixing device for a hydraulic excavator, characterized in that the pin fixing device for a hydraulic excavator is constructed by holding both ends of the lock pin and fitting the tip end of the tongue of the tongue ring into the groove.