Drawbar hammer strap pin lock

Details Drawbar hammer strap pin lock Drawbar hammer strap pin lock

2006-06-05

2008-08-26

Jasmin, Lynda (Department: 4165)

Land vehicles

Wheeled

Articulated vehicle

C280S504000, C280S507000, C280S508000, C280S509000, C280S511000

Reexamination Certificate

active

07416206

ABSTRACT:
A drawbar hammer strap assembly design achieves a low profile, and prevents rotation of the drawbar and of the cross pin. The drawbar hammer strap assembly includes a drawbar, a hammer strap member attached to the drawbar, a drawbar pin mountable to drawbar and hammer strap member and a cross pin rotatably mounted in the hammer strap for releasably holding the drawbar pin in its mounted position. The hammer strap has a pair of detent recesses formed in the sides thereof. The drawbar hammer strap assembly also includes a handle member which is pivotally coupled to an upper end of the drawbar pin. The handle member is pivotal to an unlatched position wherein it is spaced apart from the detent recess, and to a latched position wherein it is releasably received in the detent recess. The handle member is engagable with a lever arm of the cross pin to hold the cross pin in its locked position when the handle member is in its latched position.

REFERENCES:
patent: 4579364 (1986-04-01), Kranz
patent: 5769559 (1998-06-01), Olson
patent: 5921699 (1999-07-01), Olson
patent: 6193260 (2001-02-01), Homan et al.
patent: 6758486 (2004-07-01), Kollath
patent: 7048294 (2006-05-01), Heitlinger
patent: 2004/0119263 (2004-06-01), Kollath
patent: 2004/0232655 (2004-11-01), Heitlinger
patent: 2008/0067785 (2008-03-01), Buerkle et al.
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patent: 30 16 247 (1981-11-01), None
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www.powerpin.ca, PowerPin, Inc, Home Web Page.
John Deere Parts Catalog 5420 and 5520 Tractors (9425) (Grid: 5G25; Section 70; p. 58)Drawbar Hammer Strap,date unknown, printed Dec. 12, 2005; 1 page.
John Deere Parts Catalog 8130, 8230, 8330, 8430 and 8530 Tractors (North American Edition) (9451) (Grid: 3123; Section: 70; p. 66)Drawbar Clevis(North American Version), date unknown, printed Dec. 12, 2005; 1 page.
John Deere Parts Catalog 9120, 9220, 9320, 9420, 9520, and 9620 Tractors (2852) (Grid: 7H24; Section: 70; p. 116)Heavy Duty Drawbar Support Kit,date unknown, printed Dec. 12, 2005; 1 page.
ISO/FDIS 6489-3:2003(E);PTO drive shaft clearance,date unknown, p. 6, 1 page.

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