Closure fasteners – Bolts – Swinging
Patent
1991-06-18
1992-06-02
Nicholson, Eric K.
Closure fasteners
Bolts
Swinging
292DIG43, 29234116, 292DIG62, E05C 326
Patent
active
051181460
ABSTRACT:
The lock device for locking a striker pin is shown, which comprises a base plate to which a latch plate is pivotally connected. The latch plate is formed with a latching notch. The latch plate can assume a full-latch position wherein the latching notch fully latches the striker pin, a half-latch position wherein the latching notch incompletely latches the striker pin and a release position wherein the latching notch fully releases the striker pin. A first spring is used for biasing the latch plate to pivot toward the release position. A locking plate is pivotally connected to the base plate and has a pawl portion which is engageable with the latch plate to provide the latch plate with the full-latch and half-latch positions. A second spring is used for biasing the locking plate to pivot in a direction to achieve the engagement between the pawl portion and the latch plate. A full open lever is pivotally connected to the base plate. A lost-motion mechanism is arranged between the locking plate and the full open lever so that when, with the latch plate assuming the half-latch position, the full open lever is pivoted beyond a given degree, the pawl portion of the locking plate is disengaged from the latch plate thereby to permit the latch plate to assume the release position.
REFERENCES:
patent: 3905624 (1975-09-01), Fujita
patent: 3985381 (1976-10-01), Kobayashi
patent: 4334704 (1982-06-01), Yamada
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patent: 4478441 (1984-10-01), Fiordellisi et al.
patent: 4634156 (1987-01-01), Shimura et al.
patent: 4756563 (1988-07-01), Garwood et al.
patent: 4906035 (1990-03-01), Nagai et al.
patent: 4917420 (1990-04-01), Rogers, Jr.
patent: 4974885 (1990-12-01), Yokohama
Nicholson Eric K.
Nissan Motor Co,. Ltd.
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