Key-operated door locking device
First Claim
1. A key-operated door locking device including a lock casing mountable adjacent to one side of a door and having a keyhole for the insertion of a key;
- a cylinder within the casing and rotatable by the proper key when inserted into the keyhole and rotated therein;
a dog carried by the cylinder and rotatable therewith;
a bolt engageable by the dog and adapted to be projected and withdrawn with respect to the casing into and out of a recess in the door frame at said one side of the door;
a rotatable member rotatably mounted on an axis substantially parallel to the axis of the keyhole;
at least two rods each pivotably mounted at one end to a different eccentric point on the rotatable member and extending to the upper and lower edges of the door so as to be projected into further recesses in the door frame upon the rotation of the rotatable member in one direction, and to be withdrawn therefrom upon the rotation of the rotatable member in the opposite direction;
a coupling between the cylinder dog and the rotatable member effective, upon the rotation of the dog by the proper key to cause the bolt to be projected into or withdrawn from its respective recess, also to cause the rotatable member to rotate and to project or withdraw the rods from their respective recesses; and
a spring-biassed catch;
said bolt including a tail having notches formed along one edge cooperable with the cylinder dog for projecting and withdrawing the bolt and for rotating the rotatable member to project and withdraw the rods, and further notches along another edge cooperable with said spring-biassed catch for securing the bolt and the rods in their projected or withdrawn positions.
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Accused Products
Abstract
A key-operated door locking device includes a conventional rim lock adapted to be mounted to one side of the door and having a bolt projectable and withdrawable with respect to the door frame by means of a dog carried on the lock cylinder and rotatable by the insertion and rotation of the proper key. The locking device further includes a coupling between the cylinder dog and a rotatable member eccentrically mounting three pivotable rods extending completely across the door so as to be projectable and withdrawable from the three remaining sides of the door, the coupling being effective, upon the rotation of the cylinder dog by the proper key, not only to cause the bolt to be projected into or withdrawn from its respective recess, but also to cause the rotatable member to be rotated and thereby to project or withdraw the rods with respect to their respective recesses.
49 Citations
10 Claims
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1. A key-operated door locking device including a lock casing mountable adjacent to one side of a door and having a keyhole for the insertion of a key;
- a cylinder within the casing and rotatable by the proper key when inserted into the keyhole and rotated therein;
a dog carried by the cylinder and rotatable therewith;
a bolt engageable by the dog and adapted to be projected and withdrawn with respect to the casing into and out of a recess in the door frame at said one side of the door;
a rotatable member rotatably mounted on an axis substantially parallel to the axis of the keyhole;
at least two rods each pivotably mounted at one end to a different eccentric point on the rotatable member and extending to the upper and lower edges of the door so as to be projected into further recesses in the door frame upon the rotation of the rotatable member in one direction, and to be withdrawn therefrom upon the rotation of the rotatable member in the opposite direction;
a coupling between the cylinder dog and the rotatable member effective, upon the rotation of the dog by the proper key to cause the bolt to be projected into or withdrawn from its respective recess, also to cause the rotatable member to rotate and to project or withdraw the rods from their respective recesses; and
a spring-biassed catch;
said bolt including a tail having notches formed along one edge cooperable with the cylinder dog for projecting and withdrawing the bolt and for rotating the rotatable member to project and withdraw the rods, and further notches along another edge cooperable with said spring-biassed catch for securing the bolt and the rods in their projected or withdrawn positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- a cylinder within the casing and rotatable by the proper key when inserted into the keyhole and rotated therein;
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9. A key-operated door locking device including a lock casing mountable within a door and having a keyhole for the insertion of a key;
- a cylinder within the casing and rotatable by the proper key when inserted into the keyhole and rotated therein;
a rotatable member rotatably mounted on an axis substantially parallel to the axis of the keyhole, said rotatable member including a recess;
at least two rods each pivotably connected at one end to a different eccentric point on the rotatable member and extending to the upper and lower edges of the door so as to be projected into further recesses in the door frame upon the rotation of the rotatable member in one direction, and to be withdrawn therefrom upon the rotation of the rotatable member in the opposite direction;
a coupling between the cylinder and the rotatable member effective, upon the rotation of the cylinder by the proper key, to cause the rotatable member to rotate and to project or withdraw the rods from their respective recesses;
a pivotable plate including a catch;
a spring for biassing said pivotable plate to seat its catch into said recess of the rotatable member; and
a member carried by said cylinder for pivoting the pivotable plate to unseat its catch from said recess in the rotatable member before the cylinder rotates same to project or withdraw the rods. - View Dependent Claims (10)
- a cylinder within the casing and rotatable by the proper key when inserted into the keyhole and rotated therein;
Specification