Title: Retractable rock guard for a dump truck body

Abstract: A retractable rock guard for the dump body of a truck, comprising a protective structure which is normally in the upright position at the front of the dump body. The protective structure is pivotally connected to the dump body but ordinarily is secured in the normal upright position by detachable connectors. However, it can be readily detached and then the protective structure can be retracted by raising the dump body to a dump position in the usual manner. The upright protective structure is constructed and arranged so that its center of mass passes through a vertical plane intersecting its pivotal connection on the dump body under these circumstances and when this occurs the proctective structure moves to a horizontally disposed retracted position on the truck body.

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Inventors: Duttarer, Ralph M. (St. Joseph, MI, US)

Application Number: 789591
Filing Date: 1977-04-21
Publication_date: 1978-09-26
Assignee: Clark Equipment Company (Buchanan, MI)
Primary Class(es): 298/17R 298/1R, 298/22P
Other Classes:
US Patent Ref:

2974997	Mar, 1961	Parsley	298/17.
3211498	Oct, 1965	Peller	298/22.

Other Refs:
Primary Examiner: Sheridan, Robert G.
Assistant Examiner: Abraham, George F.
Attorney: Witt; Kenneth C.