Pivot pin assembly

Details Pivot pin assembly Pivot pin assembly

1982-02-22

1983-08-16

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

384249, 403 14, 403154, 403162, F16C 1102

Patent

active

043988628

ABSTRACT:
A pivot pin assembly for a bucket loader wherein a pivot pin having an enlarged tapered head passes through bushings in the loader boom arm to a distal end whereat an externally tapered thrust collar is slideably mounted thereon. An adjustment plug is threaded in the thrust collar and regulates the spacing between the collar and the pin end thereby setting the side clearance for the bushings. A pair of split wedge collars respectively lock the tapered pin head and the thrust collar in the bushing bracket apertures, the split collars being wedgingly locked by end plates bolted to the respective ends of the pin. Lip seals are provided between the boom arm and the pin head and the thrust collar and the boom arm and the pin is provided with an internal lubricant reservoir communicating with the boom arm bushings which may be easily refilled as necessary.

REFERENCES:
patent: 3841771 (1974-10-01), Shankwitz et al.
patent: 3997274 (1976-12-01), Iverson
patent: 4022536 (1977-05-01), Piepho et al.
patent: 4096957 (1978-06-01), Iverson et al.
patent: 4251182 (1981-02-01), Schroeder

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