Padlock device lockable by pushing

Details Padlock device lockable by pushing Padlock device lockable by pushing

1992-03-06

1993-03-23

Gall, Lloyd A.

Locks

Portable

Padlocks

70 39, 70 53, 70238, 70360, 70491, E05B 6722

Patent

active

051953404

ABSTRACT:
A lock device includes a hollow cylindrical rod body with two retaining holes. The rod body has a closed end and an open end. A key plug assembly includes a tubular outer housing fixed in the open end of the rod body, and a push rod extending through the outer housing and movable in the outer housing between an unlocking position, where a portion of the push rod extends from the outer end of the outer housing, and a locking position, where the push rod extends from the inner end of the outer housing. In the rod body, a resilient element pushes a locking plate assembly toward the key plug assembly. When the push rod is pushed inward and is locked in the locking position in the outer housing, the resilient element is compressed between the locking plate assembly and the end wall of the rod body so that two notched lock bars extend through the retaining holes and the small-sized portions of the locking holes in the locking plate assembly, thereby preventing removal of the lock bars from the rod body. When an associated key is inserted into the open end of the rod body and is operated so that the push rod is unlocked from the outer housing, the resilient element pushes the push rod to the unlocking position so as to engage the lock bars within the large-sized portions of the locking holes, thereby allowing the lock bars to be removed from the rod body.

REFERENCES:
patent: 957705 (1910-05-01), Nerhaft
patent: 1395970 (1921-11-01), Nidermaier
patent: 3823584 (1974-07-01), Gill
patent: 3990280 (1976-11-01), Jahn
patent: 4241594 (1980-12-01), Miller et al.
patent: 4918949 (1990-04-01), Newbold
patent: 5133203 (1992-07-01), Huang

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