Locking arrangement for windows, doors or the like

• US 5,725,260 A
• Filed: 11/01/1995
• Issued: 03/10/1998
• Est. Priority Date: 11/08/1994
• Status: Expired due to Term

• Current Assignee: Wilhelm Weidtmann GmbH & Co. KG (Roto Frank Fenster-Und Tuertechnologie GmbH)
• Original Assignee: Wilhelm Weidtmann GmbH & Co. KG (Roto Frank Fenster-Und Tuertechnologie GmbH)
• Inventors: Frick, Dietger, Eikmeier, Werner, Riedel, Werner
• Primary Examiner(s): Lindsey, Rodney M.
• Application Number:
  US08/551,557
• Time in Patent Office: 860 Days
• Field of Search: 292/341.17, 292/24, 292/109, 292/129, 292/DIG. 4, 292/DIG. 20, 292/25, 292/31
• US Class Current: 292/129
• CPC Class Codes: E05B 63/128 with additional bolt in the striker electric E05B47/0696
• CPC Class Codes: E05C 9/1808 Keepers
• CPC Class Codes: E05C 9/1858 of the roller bolt type
• CPC Class Codes: E05F 11/16 shifting the wing by pivotally-connected members (moving) in a plane perpendicular to the pivot axis of the wing
• CPC Class Codes: E05Y 2900/132 Doors
• CPC Class Codes: E05Y 2900/148 Windows
• CPC Class Codes: Y10S 292/20 Window fasteners
• CPC Class Codes: Y10T 292/0825 Hooked end
• CPC Class Codes: Y10T 292/0913 Sliding and swinging
• CPC Class Codes: Y10T 292/0936 Spring retracted

Abstract

A locking arrangement comprises a movable control member at the wing and a stationary counter-member at the frame. The control member is arranged at a connecting rod and is displaceable longitudinally along with the latter by means of a handle. In this way, the locking arrangement is displaced between a closing position and a releasing position. In order to achieve a trouble-free arrangement with a reliable closing position, at least one lever with a hook opening is provided in the counter-member which cooperates with the control member as a hook lever. This hook lever is swivelable transversely to the displacement direction of the control member. In the closing position, the hook lever is swiveled toward the control member until a hook opening receives the control member and its outer hook leg engages in front of the control member. In the releasing position, the hook lever is swiveled away from the control member and its outer hook leg is situated outside of the displacement direction of the control member.

Claims

1. A locking arrangement for windows and doors, with a movable control member at a wing or at a frame of the window on the one hand and with a stationary counter-member at the frame or wing on the other hand, wherein the movable control member is arranged so as to be stationary at a connecting rod, but the connecting rod is displaceable longitudinally by means of a handle, and the control member is displaceable relative to the stationary counter-member along a displacement path between at least one closing position and a releasing position, wherein:

the counter-member has at least one hook lever which is swivelable transversely to the displacement direction of the control member and has a hook opening which is defined on a side remote of a swivel bearing of said hook lever by an outer hook leg;

said hook lever is swiveled toward the control member in a closing position of the arrangement until said hook opening receives the control member and said outer hook leg engages in front of the control member, whereas in the releasing position of the arrangement the hook lever is swiveled away from the control member until said outer hook leg leaves the displacement path of the control member;

the hook lever is mounted such that the control member carries the hook lever in displacement therewith when the control member is displaced between the releasing position and closing position and displaces the hook lever in a compulsory manner in a housing of the counter-member between a slide-out position defining the releasing position and a slide-in position determining the closing position;

a guide surface is provided which holds said hook lever swiveled toward the control member in the slide-in position, but renders the lever swivelable in the slide-out position;

the hook opening is defined or limited on its side facing the swivel bearing by an inner hook leg;

the inner and outer hook legs extend at an inclination to the displacement direction of the control member as viewed in the slide-out position or in the slide-in position of the hook lever; and

the control member strikes against the outer hook leg when the control member is displaced into its slide-out position, but strikes against the inner hook leg when displaced in its slide-in position, so that a force is exerted by the control member on one or the other inclined hook leg with a force component which causes the hook lever to swivel toward the control member or causes the hook lever to swivel away from the control member.

2. The arrangement according to claim 1, wherein the hook lever has a projection on a longitudinal side facing away from the hook opening and the housing has a shoulder in front of which said projection engages in the releasing of the hook lever so that the slide-out position of the hook lever is secured.

3. The arrangement according to claim 1, wherein a spring is integrated in the housing and tends to move the hook lever into its releasing position.

4. The arrangement according to claim 3, wherein the hook lever is double-armed, with an outer lever arm which is located on one side of the swivel bearing and has the hook opening and with an inner lever arm which is arranged at the other side of the swivel bearing and is acted upon by the spring.

5. The arrangement according to claim 4, wherein the force of the spring extends substantially parallel to a slide guide of the lever in the housing but acts on the end of the inner lever arm via an inclined profile and accordingly exerts a torque on the hook lever.

6. The arrangement according to claim 5, wherein the swivel bearing of the hook lever is arranged at a slide and the slide is located in the slide guide of the housing.

7. The arrangement according to claim 6, wherein the spring is integrated in the slide.

8. The arrangement according to claim 6, further comprising a limit stop provided between the slide guide in the housing and the slide to limit the sliding of the hook lever in the housing.

9. The arrangement according to claim 1, wherein the counter-member has two hook levers with hook openings facing one another, the hook levers being swivelable in a mirror-inverted manner relative to one another, the control member at the connecting rod is associated with the two hook openings, the two hook levers are folded onto one another in the closing position and grasp the control member of the connecting rod between them with their two hook openings, and the two hook levers are spread apart in the releasing position and produce a through-opening for the control member between their outer hook legs.

10. The arrangement according to claim 9, wherein each of the hook levers has an inner hook leg, and the inner hook legs of the two hook levers overlap one another in the releasing position and are inclined in opposite directions relative to one another.

11. The arrangement according to claim 9, wherein the hook levers share a common swivel bearing, the housing of the counter-member being a stationary housing with a slide guide for the swivel bearing of the hook levers, the swivel bearing being arranged at a slide located in the slide guide, and wherein the control member carries the hook lever in displacement therewith when the control member is displaced between the releasing position and closing position and displaces the hook lever in a compulsory manner in the housing between the slide-out position defining the releasing position and the slide-in position determining the closing position.

12. The arrangement according to claim 11, wherein the stationary housing includes two guide surfaces in the housing associated with the two hook levers which are grasped therebetween and held so as to be folded toward one another in the slide-in position, and only one common spring is provided for the two hook levers, this spring tending to spread the two hook levers apart.

13. The locking arrangement according to claim 1, wherein the housing of the counter-member is a stationary housing with a slide guide for the swivel bearing of the hook lever.

14. The locking arrangement according to claim 13 wherein the said guide surface is a guide surface provided on the housing, the hook lever sliding along the guide surface when displaced between the slide-out position and the slide-in position of the hook lever.

15. The locking arrangement according to claim 1 wherein the said guide surface is a guide surface provided on the housing, the hook lever sliding along the guide surface when displaced between the slide-out position and the slide-in position of the hook lever.

16. In a locking arrangement for windows and doors, with a movable control member at a wing or at a frame of the window on the one hand and with a stationary counter-member at the frame or wing on the other hand, wherein the movable control member is arranged so as to be stationary at a connecting rod, but the connecting rod is displaceable longitudinally by a handle, and the control member is displaceable relative to the stationary counter-member along a displacement path between at least one closing position and a releasing position, the improvement comprising:

that the counter-member has at least one hook lever which is swivelable transversely to the displacement direction of the control member and has a hook opening which is defined on a side remote of a swivel bearing of said hook lever by an outer hook leg;

said hook lever is swiveled toward the control member in a closing position of the arrangement until said hook opening receives the control member and said outer hook leg engages in front of the control member, whereas in the releasing position of the arrangement the hook lever is swiveled away from the control member until said outer hook leg leaves the displacement path of the control member; and

resilient means engaging said hook lever for biasing said hook lever into the releasing position.

17. In a locking arrangement for windows and doors, with a movable control member at a wing or at a frame of the window on the one hand and with a stationary counter-member at the frame or wing on the other hand, wherein the movable control member is arranged so as to be stationary at a connecting rod, but the connecting rod is displaceable longitudinally by a handle, and the control member is displaceable relative to the stationary counter-member along a displacement path between at least one closing position and a releasing position, the improvement comprising:

that the counter-member has at least one hook lever which is swivelable transversely to the displacement direction of the control member and has a hook opening which is defined on a side remote of a swivel bearing of said hook lever by an outer hook leg;

said hook lever is swiveled toward the control member in a closing position of the arrangement until said hook opening receives the control member and said outer hook leg engages in front of the control member, whereas in the releasing position of the arrangement the hook lever is swiveled away from the control member until said outer hook leg leaves the displacement path of the control member;

the counter-member has two hook levers with hook openings facing one another, the hook levers being swivelable in a mirror-inverted manner relative to one another, the control member at the connecting rod is associated with the two hook openings, the two hook levers are folded onto one another in the closing position and grasp the control member of the connecting rod between them with their two hook openings, and the two hook levers are spread apart in the releasing position and produce a through-opening for the control member between their outer hook legs;

the hook levers share a common swivel bearing, the counter-member having a stationary housing with a slide guide for the swivel bearing of the hook levers, the swivel bearing being arranged at a slide located in the slide guide, and wherein the control member carries the hook lever in displacement therewith when the control member is displaced between the releasing position and closing position and displaces the hook lever in a compulsory manner in the housing between a slide-out position defining the releasing position and a slide-in position determining the closing position; and

the stationary housing of the counter-member has two guide surfaces associated with the two hook levers which are grasped therebetween and held so as to be folded toward one another in the slide-in position, and only one common spring is provided for the hook levers, this spring tending to spread the two hook levers apart.

18. In a locking arrangement for windows and doors, with a movable control member at a wing or at a frame of the window on the one hand and with a stationary counter-member at the frame or wing on the other hand, wherein the movable control member is arranged so as to be stationary at a connecting rod, but the connecting rod is displaceable longitudinally by a handle, and the control member is displaceable relative to the stationary counter-member along a displacement path between at least one closing position and a releasing position, the improvement comprising:

that the counter-member has at least one hook lever which is swivelable transversely to the displacement direction of the control member and has a hook opening which is defined on a side remote of a swivel bearing of said hook lever by an outer hook leg;

said hook lever is swiveled toward the control member in a closing position of the arrangement until said hook opening receives the control member and said outer hook leg engages in front of the control member, whereas in the releasing position of the arrangement the hook lever is swiveled away from the control member until said outer hook leg leaves the displacement path of the control member;

the counter-member has a stationary housing with a slide guide for the swivel bearing of the hook lever, and wherein the control member carries the hook lever in displacement therewith when the control member is displaced between the releasing position and closing position and displaces the hook lever in a compulsory manner in the housing between a slide-out position defining the releasing position and a slide-in position determining the closing position;

wherein the hook opening is defined on a side facing the swivel bearing by an inner hook leg, the control member striking against the inner hook leg when the control member is slid into the housing and moves from the releasing position into the closing position, whereas the control member presses against the outer hook leg when the control member moves out of the housing and is displaced from the closing position into the releasing position; and

the counter-member has two hook levers with hook openings facing one another, the hook levers being swivelable in a mirror-inverted manner relative to one another, the control member at the connecting rod is associated with the two hook openings, the two hook levers are folded onto one another in the closing position and grasp the control member of the connecting rod between them with their two hook openings, and the two hook levers are spread apart in the releasing position and produce a through-opening for the control member between their outer hook legs.