Abstract: A window or door fitting for actuation of a mechanism integrated in a window or a door has a stop body that can be attached to the window or the door, a handle, that is rotatably mounted on the stop body in an axially fixed manner, a polygonal element for the mechanical coupling of the fitting to the mechanism integrated in the window of the door, and a coupling configuration formed between the handle and the polygonal element, with which a torque transference from the handle to the polygonal element can be effected, but can be blocked in the direction from the polygonal element to the handle. The coupling configuration has two driving elements for this, wherein a first diving element is connected to the handle in a rotationally locked manner, while a second driving element accommodates the polygon in a rotationally fixed manner.

Abstract: A window or door fitting for actuation of a mechanism integrated in a window or a door has a stop body that can be attached to the window or the door, a handle, that is rotatably mounted on the stop body in an axially fixed manner, a polygonal element for the mechanical coupling of the fitting to the mechanism integrated in the window of the door, and a coupling configuration formed between the handle and the polygonal element, with which a torque transference from the handle to the polygonal element can be effected, but can be blocked in the direction from the polygonal element to the handle. The coupling configuration has two driving elements for this, wherein a first diving element is connected to the handle in a rotationally locked manner, while a second driving element accommodates the polygon in a rotationally fixed manner.

Abstract: A handle (10) supported pivotably but axially tight on an installation body (20) has a polygonal bar (30) mounted for rotation within a handle neck (12) for actuating a closing mechanism. Two drivers (15, 35) movable relative to each other are engageable in a non-positive and/or a positive way between neighboring surfaces (17, 37) either directly or by means of coupling elements (36, 40, 42) so that a torque transmission from the handle (10) to the polygonal bar (30) is free but is blocked from the polygonal bar (30) to the handle (10) as at least one coupling element (36) is displaced in the direction of the attack. A main portion of a polygonal driver (35) may be concentrically enclosed by a two-shell handle driver (15) having wings (52) with front faces (19) which drive e.g. pairs of spring-loaded roller pins (36) held in a wedge-shaped confining zone (55). Corner areas of indentations (31) of the polygonal driver (35) serve to attack the roller pins (36).

Abstract: A handle (10) supported pivotably but axially tight on an installation body (20) has a polygonal bar (30) mounted for rotation within a handle neck (12) for actuating a closing mechanism. Two drivers (15, 35) movable relative to each other are engageable in a non-positive and/or a positive way between neighboring surfaces (17, 37) either directly or by means of coupling elements (36, 40, 42) so that a torque transmission from the handle (10) to the polygonal bar (30) is free but is blocked from the polygonal bar (30) to the handle (10) as at least one coupling element (36) is displaced in the direction of the attack. A main portion of a polygonal driver (35) may be concentrically enclosed by a two-shell handle driver (15) having wings (52) with front faces (19) which drive e.g. pairs of spring-loaded roller pins (36) held in a wedge-shaped confining zone (55). Corner areas of indentations (31) of the polygonal driver (35) serve to attack the roller pins (36).

Abstract: For mounting the hollow ends (H) of a curved handle (G) in an orifice (B) on a contact face (A), a guide member (30) for a screw (29) has a base flange (31) which can be connected to expanding parts (39, 40, 60, 64) or a securing member (47) and on which there rests a tubular supporting member (12) which overlaps the hollow end (H). A cap nut (20) having a peripheral groove (24) for fixing the hollow end (H) through a setscrew V and wrench faces (33 and 23) like the head (32) can be screwed on to a head (32) of the guide member (30). A shank (37) of the guide member (30) with a conical end (39) or conical nut (64) directed against it can be pulled into an expanding nut (40) or an expanding tube (60) by means of the screw (29), enlarging an expanding basket (42, 62). A door handle (50) can be fixed, for example, on a multi-chamber profile (M), with the securing of a polygonal pin (47), the guide member (30) being secured externally by a flange ring (55).