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1. (WO1992010631) LOCK FOR HINGED LIDS, DOORS AND THE LIKE
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CLAIMS

1. Lock for hinged lids, doors and the like comprising a base for mounting on said lid, door or the like, a jaw means rotatably mounted on said base and biased by spring means towards a first rotational unlocked position from a second rotational locked position, said jaw means comprising a first shorter jaw portion and a second longer jaw portion for receiving therebetween a fixed locking pin separate from said lock as said base means moves from an open position to a closed position with said pin entering first into contact with said second longer jaw portion to cause rotation of said jaw means from said unlocked to said locked position against the bias of said spring means, and locking means adapted to retain said jaw means in said second locked position and operable to release said jaw means from said second locked position and thus permit rotation of said jaw means towards said first unlocked position under the bias of said spring means, wherein said first and second jaw portions comprise a first jaw part (1) and a second separate jaw part (2) rotatably mounted to-gether on said base (21) about a common axis, means (9,15;10,16) being provided to permit limited relative rotation between said jaw parts (1,2) and said spring means (20) biasing said second jaw part (2) towards said first jaw part (1), whereby, when said base (21) moves from said open posi-tion towards said closed position and said locking pin (29) enters into contact with said second jaw part (2), said jaw parts (1,2) are partially opened with respect to each other against the bias of said spring means (20) to permit entry under pressure of said locking pin between said jaw parts (1,2).
2. Lock according to claim 1, wherein said means permitting limited rotation comprise first and second pairs of cooperating stop surfaces (9 ,15; 10 ,16) on said jaw parts (1,5) defining respective angular limits of relative rotation between the jaw parts.
3. Lock according to claim 1 or 2, wherein said locking means comprise a spring biased latch element (8) mounted on said base (21) and cooperable with a catch formation (7) on one of said jaw parts (1,2) to maintain said jaw means in said second rotational locked position.
4. Lock according to claim 3, wherein said catch formation (7) is on said first jaw part (1).
5. Lock according to claim 1, 2 or 3, further comprising stop means (28) on said base (21), cooperable with said jaw means (1,2) to determine said first rotational unlocked position.
6. Lock according to claim 5, wherein said stop means (28) are cooperable with said second jaw part (2).
7. Lock according to any one of the preceding claims, wherein the first jaw part (1) is made of metal and the second jaw part (2) is made of a plastic material.