Abstract: In a locking device for a door, window or the like, having a main lock box, at least one supplementary lock box, and at least one drive rod connecting the supplementary lock boxes to the main lock box, better resistance to break-ins is attained in that the supplementary lock box has a latch bolt that can be retracted freely into the latching position, wherein the latch bolt is displaceable by a spring and/or by a gear past the normal latching position into its locking position.
March 26, 1997
Date of Patent:
May 21, 2002
Gretsch-Unitas GmbH Baubeschlage
Walter Renz, Wolfgang Röger, Thomas Henzler
Abstract: A locking device for a door, window, or the like, has a main lock casing, at least one additional lock casing and at least one pushrod connecting the additional lock casing with the main lock casing. The additional lock casing has a retractable latch bolt, which can be freely pushed out of the latch position into the additional lock casing, which can be pushed into its locking position by means of a spring and/or a gear. The latch bolt on its side located opposite a leading incline and in the area of the latch end has a protrusion, on which a latch restoring lever acts, and the latch restoring lever has a first catch, by means of which a pushrod is taken along in the, and; one direction, a second catch, by means of which it is taken along by the pushrod in the other.
Abstract: A lock for a door has a housing with an opening, a latch bolt and a further latch bolt both mounted to the housing for parallel displacement relative to the housing. A latch follower formed as part of a latch is connected to the latch bolt as is a changer, with the parallel displacement occurring due to the action of one of the latch follower via the latch and the changer via a key. A lock cylinder is situated in the housing opening. Two drive rods and associated control plates are provided along and a changer lever hinged to one of the control plates and connected to the lock cylinder. The lock cylinder can drive the changer via the changer lever and its hinged control plate. One side of the lock has, therefore, two drive rods.
Abstract: An arrangement for controlling the closing sequence of two wings of windows, doors, and the like, especially smoke or fire protection doors, which are closable by means of a door-closing device each. The two wings are a moving wing to be opened first and a resting wing to be opened subsequently, so that projecting edges of the doors which face each other come into contact with each other in the correct sequence. A control device is actuated primarily by the slide rollers of the door-closing device of the resting wing when the resting wing is opened. With the use of a control lever and a sliding member displaced by the control lever toward the axis of rotation of the resting lever, a locking member is pivoted into the return end region of the guide roller of the door-closing device of the moving wing. This locking member locks the final closing movement of the moving wing until the resting wing has been closed.
Abstract: A panel assembly for a door or window including a generally quadrilateral frame member having a panel member operatively connected therewith for movement between a closed position and opened positions wherein the frame member is either tilted about one edge thereof or moved laterally offset parallel to itself. Latch means provided between the panel member and the quadrilateral frame include at least one releasing arm and an angular housing, with the angular housing being connected at a corner of the panel member with two adjacent members thereof and with the releasing arm having a panel-side end at which the releasing arm is connected with the angular housing.
Abstract: A sash is mounted in a first position in a fixed frame and is movable laterally into a second position where it is parallel to the first position. A plurality of swing arms connect the sash to a movable carriage so that in the second position the sash can be moved along a linear path between a closed position and open position relative to the first position of the sash in the fixed frame. At least one of the swing arms has a control arm pivotally attached to it. The control arm has a locking member engageable within and movable along a slot in the carriage. The locking member can be secured within a section of the slot angularly offset from the main section of the slot when the sash is in the second position. With the locking member secured in the angularly offset section, the sash is retained in the second position. A lug secured to the fixed frame is located in the path of the carriage as the sash moves along the linear path toward the closed position.