Claims
- 1. A door security device for the hinge side of an entry door supported in a door opening in a wall framed by a door jamb secured to a wall supporting structural element, said device comprising: a door leaf member for securing the device to the door; buck pin plate means having an elongated buck pin projecting perpendicularly therefrom, said plate means being adapted to be secured by screws to the door jamb in a location outside the area covered by the closed door so that said buck pin engages wall supporting structural element; an extended jamb leaf means including a first part having a section to cover said plate means and prevent access to screws securing said plate means to the door jamb and a hooked end for engaging said plate means to prevent movement of said jamb leaf means along the door jamb away from said plate means, and a second part adapted to be screwed to the door jamb in the area covered by the closed door; and means connecting said door leaf member and said jamb leaf means for pivotal movement therebetween.
- 2. A device according to claim 1 wherein said door leaf member and said jamb leaf means are provided with barrel segments that interleave, and wherein said connecting means is a pin means extending through said barrel segments.
- 3. A device according to claim 2 wherein said door leaf member is an L-shaped member, one arm of which abuts the edge of the door and the other arm of which abuts the inner surface of the door, and wherein said pin means is a tight fitting pivot pin, whereby said device functions as a door supporting hinge.
- 4. A device according to claim 3 wherein said buck pin plate means includes a plate member having a shouldered aperture therein and a separate shouldered buck pin.
- 5. A device according to claim 2 wherein said door leaf member abuts the inner surface of the door and wherein said pin means is a loose fitting pin which prevents the interleaved barrel segments from disengaging, whereby the device does not function as a door supporting hinge.
- 6. A device according to claim 5 wherein said buck pin plate means includes a plate member having a shouldered aperture therein and a separate shouldered buck pin.
- 7. A device according to claim 3 wherein said jamb leaf means comprises: a flat jamb leaf having a first part adapted to be secured between said buck pin plate means and the door jamb, said first part being formed with an aperture through which said buck pin projects, and a second part provided with screwholes that will be covered by the closed door; and a cover plate for covering said buck pin plate means, said cover plate having a hooked end for engaging said buck pin plate means, said cover plate having screwholes that align with the screwholes of said jamb leaf when said cover plate is in hooked engagement with said buck pin plate means so that said jamb leaf and said cover plate are secured to the door jamb by the same screws.
- 8. A device according to claim 7 wherein said buck pin plate means includes a plate member having a shouldered aperture therein and a separate shouldered buck pin.
- 9. A device according to claim 5 wherein said jamb leaf means comprises: a flat jamb leaf having a first part adapted to be secured between said buck pin plate means and the door jamb, said first part being formed with an aperture through which said buck pin projects, and a second part provided with screwholes that will be covered by the closed door; and a cover plate for covering said buck pin plate means, said cover plate having a hooked end for engaging said buck pin plate means, said cover plate having screwholes that align with the screwholes of said jamb leaf when said cover plate is in hooked engagement with said buck pin plate means so that said jamb leaf and said cover plate are secured to the door jamb by the same screws.
- 10. A device according to claim 9 wherein said buck pin plate means includes a plate member having a shouldered aperture therein and a separate shouldered buck pin.
- 11. A device according to claim 1 wherein said buck pin plate means includes a plate member having a shouldered aperture therein and a separate shouldered buck pin and wherein said jamb leaf means comprises: a flat jamb leaf having a first part adapted to be secured between said buck pin plate member and the door jamb, said first part being formed with an aperture through which said buck pin projects, and a second part provided with screwholes that will be covered by the closed door; and a cover plate for covering said plate member, said cover plate having a hooked end for engaging said plate member, said cover plate having screwholes that align with the screwholes of said jamb leaf when said cover plate is in hooked engagement with said plate member so that said jamb leaf and said cover plate are secured to the door jamb by the same screws; and wherein said means connecting said door leaf member and said jamb leaf means comprises a slot formed in said jamb leaf means and a tab means formed on said door leaf member that projects through said slot.
- 12. A door security device for the hinge side of an entry door supported in a door opening in a wall framed by a door jamb secured to a wall supporting structural element, said device comprising: a door leaf member for securing the device to the door; an extended jamb leaf means including a first part adapted to be screwed to the door jamb in the area covered by the closed door and a buck pin part extending outside the area covered by the closed door, said buck pin part being provided with a shouldered aperture adapted to align with the wall supporting structural element and upstanding sidewalls along its edges except for the edge that is adjacent the closed door so as to surround said aperture, at least those sidewalls extending from the closed door being inwardly inclined to provide a dovetail arrangement; an elongated shouldered buck pin adapted to project through said aperture provided in said buck plate means part of said jamb leaf and into the wall supporting structural element; a cover plate having at least two opposite edges thereof tapered inwardly so that said cover plate can be slipped into position covering said aperture and dovetailing with said sidewalls when the door is open, said cover plate being irremovable when the door is closed; and means connecting said door leaf member and said jamb leaf means for pivotal movement therebetween.
- 13. A device according to claim 12 wherein said door leaf member and said jamb leaf means are provided with barrel segments that interleave, and wherein said connecting means is a pin means extending through said barrel segments.
- 14. A device according to claim 13 wherein said door leaf member is an L-shaped member, one arm of which abuts the edge of the door and the other arm of which abuts the inner surface of the door, and wherein said pin means is a tight fitting pivot pin, whereby said device functions as a door supporting hinge.
- 15. A device according to claim 13 wherein said door leaf member abuts the inner surface of the door and wherein said pin means is a loose fitting pin which prevents the interleaved barrel segments from disengaging, whereby the device does not function as a door supporting hinge.
- 16. A device according to claim 12 wherein said means connecting said door leaf member and said jamb leaf means comprises a slot formed in said jamb leaf means and a tab means formed on said door leaf member that projects through said slot.
FIELD OF THE INVENTION
This invention is a continuation-in-part of application Ser. No. 783,874 filed Oct. 3, 1985, now U.S. Pat. No. 4,656,691 which itself is a divisional application of application Ser. No. 522,325 filed Aug. 11, 1983, now U.S. Pat. No. 4,547,009.
This invention relates to a door security system, and more particularly to an improved article of manufacture which enhances the security offered by a locked door by minimizing the liklihood of the door being ripped from its support on the hinge side of the door.
With the increased need and demand for securing exterior doors against unauthorized and forcible entry, there has been a steady development of improved security locks and devices. Such improvements have been directed to pick resistant cylinders, longer and stronger dead bolts, and guard plates to prevent removal of lock cylinders. However, no matter how secure the lock cylinder and bolt are, the fact remains that the bolt generally extends only about one inch into an aperture in the door jamb after passing through a small strike plate mounted on the jamb. The strike plate is usually secured to the jamb by a pair of screws that extend a short distance into the jamb. Moreover, the location of the strike plate and the aperture into which the lock bolt extends is close to the inner edge of the jamb with a relatively thin section of the jamb retaining the bolt against inward movement. Thus, in many instances, a person may cause the bolt to rip through the retaining section of the jamb simply by throwing his weight against the door. Since door hinges are similarly secured near the inner edge of the door jamb by relatively short screws, the same technique can be used to free the door at its hinge side. In this way entry may be gained without disturbing or overcoming the security offered by the lock itself. My aforementioned applications, as well as my patent, U.S. Pat. No. 4,593,546, disclose devices that improve the security of doors.
It is an object of the invention to provide an improved door security system.
It is another object of the invention to provide a security device that minimizes the liklihood of the hinge side of a door being ripped from the door frame.
It is another object of the invention to provide an improved door hinge.
It is still another object of the invention to provide a security device that may be applied to the hinge side of a door and door frame while the door is supported on the frame by conventional door hinges.
In carrying out the invention, a hinge having a jamb leaf that extends outside the area protected by a closed door is provided with an elongated buck pin that extends into the door jamb a relatively long distance and into an abutting relationship with the central section of the basic wall structure, thus minimizing the liklihood of the hinge being ripped from the door jamb when a force is applied to a closed door adjacent the hinges. A further embodiment of the invention employs a similar jamb leaf, but the door leaf is secured to the inner surface of the door and is loosely connected to the jamb leaf. This latter embodiment of the invention does not function as a door supporting hinge, but is intended to supplement the conventional door hinges and improve the security at the hinge side of the door.
US Referenced Citations (2)
Divisions (1)
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Number |
Date |
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522325 |
Aug 1983 |
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Continuation in Parts (1)
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Number |
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783874 |
Oct 1985 |
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Patent Grant
4771506
