Attachment coupler

Details Attachment coupler Attachment coupler

2008-02-29

2009-11-24

Stodola, Daniel P (Department: 3679)

Joints and connections

Manually releaseable latch type

Having operating mechanism

C403S321000, C403S322400, C403S325000, C037S468000, C037S903000, C414S723000

Reexamination Certificate

active

07621689

ABSTRACT:
An attachment coupler is attached to an end of an arm of a working machine. An attachment having two attachment pins in parallel can be detachably attached to the attachment coupler. The attachment coupler includes a first U-shaped portion that engages with and supports one of the attachment pins sideways, and a second U-shaped portion that receives the other attachment pin downwardly. The second U-shaped portion includes a rotary hook that opens and closes the opening of the second U-shaped portion. The rotary hook includes an engagement securing member that engages with and secures the rotary hook when the rotary hook closes the opening of the second U-shaped portion and when the rotary hook opens the opening of the second U-shaped portion, and a bolt securing member that secures the rotary hook with a bolt when the rotary hook closes the opening of the second U-shaped portion.

REFERENCES:
patent: 5125788 (1992-06-01), Stenger
patent: 5546683 (1996-08-01), Clark
patent: 5549440 (1996-08-01), Cholakon et al.
patent: 6231296 (2001-05-01), Blomgren
patent: 6241455 (2001-06-01), Schupback et al.
patent: 6308442 (2001-10-01), Naka et al.
patent: 6422805 (2002-07-01), Miller
patent: 6431785 (2002-08-01), Melander
patent: 6625909 (2003-09-01), Miller et al.
patent: 7014385 (2006-03-01), Lim et al.
patent: 2002/0136597 (2002-09-01), Nishikawa et al.
patent: 2001-288770 (2001-10-01), None

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