Closure fasteners – Bolts – Multiple
Patent
1998-01-29
1999-11-16
Saether, Flemming
Closure fasteners
Bolts
Multiple
292198, 292DIG4, 267158, E05C 306
Patent
active
059843810
ABSTRACT:
A locking device for opening or closing a door comprising a lock housing having a pair of holes; a slider slidable within the lock housing; a pair of clamps, the base end being pivotally mounted on the front end of the slider, and the other end having a spring force acting outward; a spring member for the clamp attached to the front end of the slider; rails each provided on the outside of the pair of clamps in the lengthwise direction; a pair of rollers each having a circular shape, which can be fitted with each of the rails, and are supported to be revolved in adjacent to the holes of the lock housing; a spring member for the slider which is intervened between the lock housing and the slider and which applies a spring force to the slider in the direction forward to the hole of the lock housing; a heart-shaped groove carved in one side of the slider, having a plurality of differences in depth, and a recess provided on the bottom portion thereof; a projecting member, one end being slidable in the groove only in one direction, and the other end being formed on the lock housing; a spring member for the projecting member; a resilient member which reinforces the resiliency of the spring member for the projecting member; and a key unit which can be clamped by the pair of clamps is provided.
REFERENCES:
patent: 3994476 (1976-11-01), van Gennep
patent: 4592153 (1986-06-01), Jacinto
patent: 4660871 (1987-04-01), Arakawa et al.
patent: 4792165 (1988-12-01), Nishimura
patent: 4917416 (1990-04-01), Westphal et al.
patent: 5004276 (1991-04-01), Hanley
patent: 5090751 (1992-02-01), Kobayashi
patent: 5217262 (1993-06-01), Kurosaki
patent: 5292158 (1994-03-01), Kurosaki
patent: 5498039 (1996-03-01), Bivens
Pham Teri
Saether Flemming
Tokyo Magnet Ohyo Seihin Kabushiki Kaisha
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