Handle lock device

Details Handle lock device Handle lock device

1996-11-14

1998-11-03

Meyers, Steven N.

Locks

Special application

For control and machine elements

70223, 70387, 70423, B60R 2502

Patent

active

058292810

ABSTRACT:
A protector block is movable in a direction in which a key K can be inserted, and first engaging portions which engage each other when the protector block is pushed in are formed between the protector block and an outer lock cylinder. A crankshaft is movable in the direction in which the key K can be inserted, and second engaging portions which engage each other when the crankshaft is pushed in are formed between the crankshaft and the outer lock cylinder. When an object in place of a key is inserted into a key insertion hole and attempts are made to forcibly turn the object while pushing the object, the first engaging portions between the protector block and the outer lock cylinder engage each other, preventing the crankshaft from being turned. When attempts are made to turn an inserted object while pulling the object, the second engaging portions between the crankshaft and the outer lock cylinder engage each other, preventing the crankshaft from being turned. In combination with tumblers preventing the crankshaft from being turned, the above structure makes it highly difficult to unlock the handle lock device.

REFERENCES:
patent: 3877265 (1975-04-01), Shaumberg
patent: 4036039 (1977-07-01), Nakanishi
patent: 4052869 (1977-10-01), Weber
patent: 4981026 (1991-01-01), Sakuno
patent: 5263348 (1993-11-01), Wittwer
patent: 5265453 (1993-11-01), Konii
patent: 5410898 (1995-05-01), Shieh
patent: 5640864 (1997-06-01), Miyamoto

Affiliated with

Also associated with

Rating

Handle lock device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Handle lock device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Handle lock device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-679315