| 摘要 |
PCT No. PCT/SE90/00519 Sec. 371 Date Feb. 18, 1992 Sec. 102(e) Date Feb. 18, 1992 PCT Filed Aug. 8, 1990 PCT Pub. No. WO91/02874 PCT Pub. Date Mar. 7, 1991.A swinging arm hold (8), designed to be attached between a window case (1) and a window frame (6) and comprising a basic bar (12), attached to the case, and an upper arm (11) and a lower arm (13), projecting from the ends of the basic bar, which two arms are rotatably attached to the uppermost part of an outer bar (9), which carries the frame. About the hinge between the basic bar and the upper arm a lock (18) having a lock recess (21) is mounted, rotatable in a limited way and designed to interact with a holding element (22), which projects from the lower arm. The lock recess is limited in its outermost part by guide surfaces (29, 30) for the holding element and its innermost part has an extension, which runs with an acute angle in relation to a line between any part of the recess and the swinging center (19) of the lock, mainly designed to, during the last part of the swinging movement of the frame, give the lock an idle position, which takes up less space, and allow the frame to occupy a somewhat further outwardly swung partially open position. From the disc-shaped lock an angled actuation means (35) projects outwards towards the center of the frame and constitutes one of the limits of a security recess (31), designed to limit the swinging movements of the lock.
|
