Locking device for a door
First Claim
Patent Images
1. A locking mechanism for a door, said door being at least one of a hydraulic, an electromechanical and a manually operated door, said locking mechanism being for the securing of two door members in at least one of a locked and an unlocked position, said locking mechanism comprising:
- a locking lever member;
said locking lever member being movable between at least two lever positions;
said locking lever member substantially restraining relative movement between said two door members in a first of said at least two lever positions; and
said locking lever member substantially permitting relative movement between said two door members in a second of said at least two lever positions;
an electromagnetic device to move said locking lever member between said first lever position and said second lever position;
a first permanent magnet disposed on said locking lever member;
said first permanent magnet moving with said locking lever member between said first lever position and said second lever position;
a second permanent magnet;
said second permanent magnet being stationarily mounted;
said first permanent magnet and said second permanent magnet exerting magnetic forces on one another to substantially maintain said locking lever member in at least one of said first and second lever positions;
said electromagnetic device comprising an electromagnet;
said electromagnet comprising first and second windings;
energization of said first winding of said electromagnet urging said locking lever member toward said first lever position; and
energization of said second winding of said electromagnet urging said locking lever member toward said second lever position.
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Accused Products
Abstract
An electromechanical locking mechanism which can execute a pulse-control for the locking or unlocking of door panels. A bistable electromagnet interacts with an appropriately shaped lever so that a permanent magnet which is fastened to the lever arm and a permanent magnet which is fastened to a mounting plate repel one another and can thereby move the lever into a secure position, namely into a locked or unlocked position.
76 Citations
18 Claims
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1. A locking mechanism for a door, said door being at least one of a hydraulic, an electromechanical and a manually operated door, said locking mechanism being for the securing of two door members in at least one of a locked and an unlocked position, said locking mechanism comprising:
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a locking lever member; said locking lever member being movable between at least two lever positions; said locking lever member substantially restraining relative movement between said two door members in a first of said at least two lever positions; and said locking lever member substantially permitting relative movement between said two door members in a second of said at least two lever positions; an electromagnetic device to move said locking lever member between said first lever position and said second lever position; a first permanent magnet disposed on said locking lever member; said first permanent magnet moving with said locking lever member between said first lever position and said second lever position; a second permanent magnet; said second permanent magnet being stationarily mounted; said first permanent magnet and said second permanent magnet exerting magnetic forces on one another to substantially maintain said locking lever member in at least one of said first and second lever positions; said electromagnetic device comprising an electromagnet; said electromagnet comprising first and second windings; energization of said first winding of said electromagnet urging said locking lever member toward said first lever position; and energization of said second winding of said electromagnet urging said locking lever member toward said second lever position. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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2. A locking mechanism for a door, said door being at least one of a hydraulic, an electromechanical and a manually operated door, said locking mechanism being for the securing of two door members in at least one of a locked and an unlocked position, said locking mechanism comprising:
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a locking lever member; said locking lever member being movable between at least two lever positions; said locking lever member substantially restraining relative movement between said two door members in a first of said at least two lever positions; said locking lever member substantially permitting relative movement between said two door members in a second of said at least two lever positions; an electromagnetic device to move said locking lever member between said first lever position and said second lever position; a first permanent magnet disposed on said locking lever member; said first permanent magnet moving with said locking lever member between said first lever position and said second lever position; a second permanent magnet; said second permanent magnet being stationarily mounted; said first permanent magnet and said second permanent magnet exerting magnetic forces on one another to substantially maintain said locking lever member in at least one of said first and second lever positions; said electromagnetic device comprising an electromagnet; energization of said electromagnet with a first current urging said locking lever member toward said first lever position; and energization of said electromagnet with a second current, said second current having an opposite polarity to said first current, urging said locking lever member toward said second lever position.
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15. A locking mechanism for a door, said locking mechanism being for the securing of two door members in at least one of a locked and an unlocked position, said locking mechanism comprising:
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a locking lever member; said locking lever member being movable between at least two lever positions; said locking lever substantially restraining relative movement between said two door members in a first of said at least two lever positions; said locking lever substantially permitting relative movement between said two door members in a second of said at least two lever positions; an electromagnetic device to move said locking lever member between said first lever position and said second lever position; a first permanent magnet disposed on said locking lever member; said first permanent magnet moving with said locking lever member between said first lever position and said second lever position; a second permanent magnet; said second permanent magnet being stationarily mounted; said first permanent magnet and said second permanent magnet exerting magnetic forces on one another to substantially maintain said locking lever member in at least one of said first and second lever positions; said electromagnetic device comprising an electromagnet; said electromagnet comprising first and second windings; energization of said first winding of said electromagnet urging said locking lever member toward said first lever position; energization of said second winding of said electromagnet urging said locking lever member toward said second lever position; said electromagnetic device additionally comprising an armature member connecting said electromagnet with said locking lever member; said locking lever member comprising at least two separate arm portions; said first permanent magnet being mounted on a first of said at least two arm portions; and said first and second permanent magnets being aligned with the same polarity disposed in opposition to one another. - View Dependent Claims (16, 17, 18)
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Specification