Door control mechanism
First Claim
1. A door control mechanism for securing a swinging door in a closed position, said mechanism comprising a shaft having a vertical axis of rotation, bearing members adjacent to opposite ends of said shaft adapted to rotatably connect said shaft to a swinging door with the shaft axis of rotation spaced from and parallel with the pivotal axis of the door, door operating means attached to the shaft for oscillating said shaft about its longitudinal axis, discrete latch members secured to said shaft adjacent to opposite ends thereof, discrete keeper members adapted to be secured to structure adjacent to opposite edge portions of a door that extends transversely to the pivotal axis of the door, said keeper members being engagable with said latch members, and a discrete security locking means connected to said shaft intermediate the means for oscillating said shaft about its longitudinal axis and an upper end of said shaft, said locking means including a security latch member pivotably secured to said shaft for lateral movement between latched and unlatched positions upon movement with said shaft and means for engaging said pivoted latch having a first base part secured to a structure adjacent a door and a second part movably secured to the first part to engage an end of the latch member to block lateral movement of the latch member and thereby prevent rotation of said shaft by said door operating means.
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Accused Products
Abstract
A door control mechanism including a shaft with a vertical axis of rotation, bearing members adjacent to opposite ends of the shaft which rotatably connect the shaft to a swinging door and a means for rotating said shaft along its longitudinal axis. Latch members are secured to the shaft at opposite ends and keeper members are secured to structure adjacent to opposite edge portions of the door which extend transverse to the pivotal axis of the door. A discrete security locking means connected to the shaft intermediate the means for rotating said shaft about its longitudinal axis and an upper end of the shaft is also included.
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Citations
9 Claims
- 1. A door control mechanism for securing a swinging door in a closed position, said mechanism comprising a shaft having a vertical axis of rotation, bearing members adjacent to opposite ends of said shaft adapted to rotatably connect said shaft to a swinging door with the shaft axis of rotation spaced from and parallel with the pivotal axis of the door, door operating means attached to the shaft for oscillating said shaft about its longitudinal axis, discrete latch members secured to said shaft adjacent to opposite ends thereof, discrete keeper members adapted to be secured to structure adjacent to opposite edge portions of a door that extends transversely to the pivotal axis of the door, said keeper members being engagable with said latch members, and a discrete security locking means connected to said shaft intermediate the means for oscillating said shaft about its longitudinal axis and an upper end of said shaft, said locking means including a security latch member pivotably secured to said shaft for lateral movement between latched and unlatched positions upon movement with said shaft and means for engaging said pivoted latch having a first base part secured to a structure adjacent a door and a second part movably secured to the first part to engage an end of the latch member to block lateral movement of the latch member and thereby prevent rotation of said shaft by said door operating means.
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9. A door control mechanism for securing a swinging door in a closed position, said mechanism comprising a shaft having a vertical axis of rotation, bearing members adjacent to opposite ends of said shaft adapted to rotatably connect said shaft to a swinging door with the shaft axis of rotation spaced from and parallel with the pivotal axis of the door, door operating means attached to the shaft for oscillating said shaft about its longitudinal axis, discrete latch members secured to said shaft adjacent to opposite ends thereof, discrete keeper members adapted to be secured to structure adjacent to opposite edge portions of a door that extends transversely to the pivotal axis of the door, said keeper members being engagable with said latch members, and a discrete security locking means connected to said shaft intermediate the means for oscillating said shaft about its longitudinal axis and an upper end of said shaft, said locking means including a security latch member pivotably secured to said shaft for lateral movement between a latched position in which the pivoted latch member is parallel with the door and an unlatched position upon movement with rotation of said shaft and means for engaging said pivoted security latch member including a first part securable to a structure adjacent an edge of such a swinging door parallel with said shaft and a second part movable about an axis transverse to the plane of the door when closed, to engage an end of the latch member spaced from the shaft to block lateral movement of the latch member and thereby prevent rotation of said shaft by said door operating means, and including means to receive a padlock shackle or cable seal to prevent movement of said engaging means, said receiving means being securable to said structure and movable with said second part of said engaging means and including a shield portion spaced from and parallel with the plane of such a door when closed, extending to cover said receiving means and to limit access adjacent the security latch member to the shackle or cable seal received by said receiving means.
Specification