초록 ▼

A rotary-latch lock (1), of which a rotary latch (8) has a fork mouth (9) for accommodating a mating locking part (6) which, in a locked position of the rotary-latch lock (1), is located in front of a blocking flank (16) formed by a fork-mouth leg (11), having a window-like opening (17, 25, 26) whic

A rotary-latch lock (1), of which a rotary latch (8) has a fork mouth (9) for accommodating a mating locking part (6) which, in a locked position of the rotary-latch lock (1), is located in front of a blocking flank (16) formed by a fork-mouth leg (11), having a window-like opening (17, 25, 26) which promotes plastic deformation when the blocking flank (16) is subjected to increased loading, wherein the opening (17, 25, 26) forms a bending/extending web (18, 23, 24).

대표청구항 ▼

1. A rotary-latch lock (1) comprising: a rotary latch (8) having a fork mouth (9) for receiving a mating locking part (6) which, in a locked position of the rotary-latch lock (1), is located in front of a blocking flank (16) formed by a fork-mouth leg (11) of the rotary latch (8); said fork-mouth

1. A rotary-latch lock (1) comprising: a rotary latch (8) having a fork mouth (9) for receiving a mating locking part (6) which, in a locked position of the rotary-latch lock (1), is located in front of a blocking flank (16) formed by a fork-mouth leg (11) of the rotary latch (8); said fork-mouth leg (11) having a window-like opening (17, 25, 26) which promotes plastic deformation when the blocking flank (16) is subjected to increased loading; wherein the opening (17, 25, 26) forms a bending/extending web (18, 23, 24) having said blocking flank; wherein the window-like opening (17) is located behind the web (18) on a side of the fork-mouth (9) opposing a path of travel of the locking part (6) from the locked position to an unlocked position within the fork mouth (9), the window-like opening (17) extending transverse to the path of travel from a locked position of the locking part (6) to promote said plastic deformation, and said fork-mouth leg (11) supports opposed ends of said web and said blocking flank to provide for a bending of said web during said plastic deformation. 2. The rotary-latch lock as claimed in claim 1, wherein the bending/extending web (18) runs parallel to the blocking flank (16). 3. The rotary-latch lock as claimed in claim 1, wherein the bending/extending web (23, 24) is part of a bearing eyelet (L1, L2) for a rotary bearing of the rotary latch and/or catch. 4. The rotary-latch lock as claimed in claim 1, wherein stresses which occur under increased loading in a region of a root (9') of the fork mouth (9) are reduced as a result of the opening (17) extending beyond the fork-mouth root (9'). 5. The rotary-latch lock as claimed in claim 3, wherein the length of the web (18, 23, 240) is considerably greater than the diameter of the mating locking part (6) and of the bearing eyelet (L1, L2). 6. The rotary-latch lock as claimed in claim 3, wherein the mating locking part (6) or the articulation pin (7, 14), which engages through the bearing eyelet (L1, L2), butts approximately centrally against the web (18, 23, 24). 7. The rotary-latch lock as claimed claim 1, wherein the opening section (17"), which is coordinated to a fork-mouth root (9'), follows a curvature of the blocking flank (16). 8. The rotary-latch lock as claimed in claim 3, wherein window width corresponds approximately to half the diameter or the radius of the mating locking part (6) and of the bearing eyelet (L1, L2). 9. The rotary-latch lock as claimed in claim 1, wherein at least a portion of the lock, including at least one of the rotary latch (8), a catch (13), and the opening (17, 25, 26), is sheathed in plastic. 10. The rotary-latch lock as claimed in claim 1, wherein the opening (17, 25, 26) contains a compressible plastic filling (20, 20', 27, 28). 11. The rotary-latch lock as claimed in claim 10, wherein the plastic filling (20, 20', 27, 28) is formed integrally with sheathing (19, 19'). 12. The rotary-latch lock as claimed in claim 10, wherein the plastic filling (20') has webs (22) which form cavities (21). 13. The rotary-latch lock as claimed in claim 12, wherein the webs (22) are arranged in zigzag form.