Trailer kingpin locking apparatus

Locks – Portable

Patent

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Details

70 58, 70232, 70258, 280507, B60R 2500, F16B 4100

Patent

active

059879386

ABSTRACT:
A trailer kingpin locking apparatus, for use with a trailer having a kingpin with an annular groove, features a lock body with a cylindrical opening to receive a kingpin. A padlock channel, running transversely to the axis of the kingpin opening and sized to accommodate the body of a padlock, extends partially into the sidewall of the lock body. A shackle channel, parallel to and narrower than the padlock channel, extends inward from the padlock channel and intercepts the kingpin opening to form an opening thereinto. A retaining pin bridges the shackle channel near the kingpin opening. The locking apparatus may be slipped over a kingpin such that the shackle channel coincides with the annular groove of the kingpin. The shackle of a standard padlock is inserted into the shackle channel and around the retaining pin, with the shackle projecting partially into the annular groove and preventing the locking apparatus from being slipped off of the kingpin. The padlock is then closed, with the body of the padlock projecting partially into the padlock channel, such that the shackle is entirely enclosed within the lock body and is inaccessible to bolt cutters or similar tools.

REFERENCES:
patent: 2641124 (1953-06-01), Gallagher et al.
patent: 3415085 (1968-12-01), Eble, Jr.
patent: 3780546 (1973-12-01), Longenecker
patent: 3832872 (1974-09-01), Gerlach
patent: 4141233 (1979-02-01), Reyes
patent: 4620718 (1986-11-01), Mickelson
patent: 4841756 (1989-06-01), Curtis
patent: 5052203 (1991-10-01), Van Cuyk
patent: 5136863 (1992-08-01), Richardson
patent: 5197311 (1993-03-01), Clark
patent: 5259223 (1993-11-01), Nee
patent: 5297407 (1994-03-01), Tarr
The Coast Connector RV Catalogue, Jan. 1996, p. 469, Item #30901 --Fifth Wheel Lock.

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