Collapsible trailer hitch bumper block excessive impact protecti

Details Collapsible trailer hitch bumper block excessive impact protecti Collapsible trailer hitch bumper block excessive impact protecti

1979-01-31

1980-12-16

Beltran, Howard

Freight accommodation on freight carrier

Load bearer accommodation

Semitrailer accommodation

280432, 410 60, 410 64, B60P 306, B61D 316, B61K 1300, B62D 5310

Patent

active

042394295

ABSTRACT:
In a tractor operated piggyback railway trailer hitch including a vertical strut and a diagonal strut supporting a hitch head or fifth wheel, an improved bumper block assembly is provided, including at least one bumper block support plate pivotably mounted about a first pin in the hitch head, and a kingpin block laterally spaced from the bumper block support plate. The bumper block includes a generally vertical surface adapted to be contacted by a tractor, and a body portion including a first opening to receive a second pin. The bumper block is pivotably mounted about the second pin extending through the bumper block support plate and the bumper block. A third pin extends through the bumper block and said bumper block support plate. The third pin is designed to shear at a predetermined applied load. Thus, if the tractor applies a load to the third pin above the predetermined load, the third pin will shear off and the bumper block will pivot about the second pin, and the remainder of the hitch operating mechanism which might normally be damaged by such a hard impact is protected.

REFERENCES:
patent: 3050320 (1962-08-01), Clejan
patent: 3234893 (1966-02-01), Smeda
patent: 3486467 (1969-12-01), Coulson
patent: 3497169 (1970-02-01), Enochian
patent: 3892426 (1975-07-01), Ferris

Affiliated with

Also associated with

Rating

Collapsible trailer hitch bumper block excessive impact protecti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Collapsible trailer hitch bumper block excessive impact protecti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collapsible trailer hitch bumper block excessive impact protecti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-605463