JPH01160048U

JPH01160048U -

Info

Publication number: JPH01160048U
Application number: JP5482388U
Authority: JP
Priority date: 1988-04-22
Filing date: 1988-04-22
Publication date: 1989-11-07

Description

[Brief explanation of the drawing]

第１図はこの考案にかかるクイツクキヤツチ装
置の斜視図、第２図は第１図のＡ―Ａより見たバ
ケツト取付時の断面図、第３図は第２図のＢ―Ｂ
より見た断面図、第４図は第１図のＡ―Ａより見
た断面図、第５図は油圧シヨベルの側面図、第６
図はバケツトの斜視図である。２……アーム、４……バケツト、７，８……下
側、上側連結ピン、９……クイツクキヤツチ装置
、１０……操作レバー、１１……可動フツク、１
２……フレーム、１３……固定フツク、１４……
切欠凹溝、１８……ばね部材、１９……リンク機
構。 Fig. 1 is a perspective view of the quick catch device according to this invention, Fig. 2 is a sectional view when the bucket is attached as seen from A-A in Fig. 1, and Fig. 3 is B-B in Fig. 2.
Figure 4 is a cross-sectional view taken from line A-A in Figure 1, Figure 5 is a side view of the hydraulic excavator, Figure 6 is a side view of the hydraulic excavator.
The figure is a perspective view of the bucket. 2...Arm, 4...Bucket, 7, 8...Lower side, upper connecting pin, 9...Quick catch device, 10...Operation lever, 11...Movable hook, 1
2... Frame, 13... Fixed hook, 14...
Notch groove, 18... Spring member, 19... Link mechanism.

Claims

[Scope of utility model registration request]

In a work attachment attached to the front part of a hydraulic excavator, a frame is provided between the connection part between the arm tip and the bucket belt, and a bracket for attaching the arm tip and a bracket for attaching the push rod are arranged on the rear side of the frame, and the above-mentioned A fixed hook is provided at the lower part of the front side of the frame, and a movable hook is pivotally supported at the upper part of the front side so as to be freely rotatable in the vertical direction, and the hooking directions of the fixed and movable hooks are inserted into the bucket bag. The lower and upper connecting pins are formed so as to be hooked downward from above, and on the other hand, a cutout groove is formed in which the upper connecting pin can fit when the fixing hook is hooked to the lower connecting pin. provided on the frame, and one end of the fixed hook side of the frame and the movable hook are connected via a link mechanism having a spring member and an operating lever, and the movable hook is constantly urged in the direction of the fixed hook;
When attaching or removing the bucket, the movable hook can be opened upward against the spring force of the spring member by operating the operating lever, and with the movable hook in the open state, the lower and upper connecting pins of the bucket can be connected to the fixing hook and the notched groove, respectively. A quick catch device for a bucket, characterized in that the movable hook is configured to be able to be pressed and hooked against the upper connecting pin by the spring force of the spring member by operating the operating lever when the hook is inserted into the bucket.