Patent ID: 6439016
Filing Date: 2002-08-27
Classification: E05B,Y10T

Abstract:
Closing device (71, 72, 73) for closing functions to be performed especially on vehicles, with a closing cylinder (70),wherein the closing cylinder (70) comprises a free bushing (20) and a cylinder core (10) supported therein axially fixed and rotationally and having a cylinder portion (12) comprising followers (15), and the followers (15) are controllable by insertion of a key (16) and, when the key (16) is removed, lock the cylinder core (10) with the free bushing (20), with a stationary housing (30) receiving the free bushing (20) in a rotatable fashion in which, however, the free bushing (20) is normally rotationally fixed by a radially spring-loaded (33) locking and control member (61; 61â€²) of an overload interlock (60), wherein the locking and control member (61; 61â€²) is positioned loose in a radial recess (31; 31â€²) of the housing (30) and, in the normal situation, engages with its radially inner end (62), because of the radial spring load (33), a radial recess (21, 21â€²) of the free bushing (20) having a lifting profile, wherein, however, in the overload situation, it moves from this engagement position, counter to its spring load (33), into a lifted position in the circumferential area (64) of the free bushing (20), with a working member (50) performing the locking function in the vehicle as well as with a slide (40) rotationally fixedly but slidably connected with the working member (50, 50â€²), which normally is in a rotationally fixed coupling position with the cylinder core (10) because of a return force (44), but in the overload situation is decoupled by means of the locking and control member (61; 61â€²) and reaches a locking position which is rotationally fixed in the housing (30), in which optionally also the working member (50; 50â€²) is locked (32, 42) and, whereinthe radial recess (31; 31â€²) for the locking and control member (61; 61â€²) is open toward the exterior of the housing and the locking and control member (61; 61â€²) is exposed in the radially outward direction, but is covered by a leaf-shaped spring (37; 23, 23â€²), wherein the spring (37; 23, 23â€²) is arranged in the circumferential area of the housing (77) and acts directly on the locking and control member (61; 61â€²), that the control and locking member (61; 61â€²) is arranged radially adjacent to the cylinder portion (12) of the cylinder core (10) being provided with the followers (15), and that the slide (40) is positioned in a portion (69) of the closing cylinder (70) axially stepped relative to the locking and control member (61) and that an axial connection (80, 83) bridges the spacing between the locking and control member (61; 61â€²) and the slide (40).