IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0688524
(2003-10-17)
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발명자
/ 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
3 |
초록
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A door locking system for precluding the picking of a lock comprises a door. The door has an outside, an inside and a facing surface. A bolt is mounted in the door. The bolt is adapted to slide between an unlocked orientation and a locked orientation. The bolt is formed to include a linear surface w
A door locking system for precluding the picking of a lock comprises a door. The door has an outside, an inside and a facing surface. A bolt is mounted in the door. The bolt is adapted to slide between an unlocked orientation and a locked orientation. The bolt is formed to include a linear surface with gear teeth constituting a rack. A handle housing is mounted on the door. The handle housing has a handle. The handle has a handle shaft rotatable with the handle and coaxial therewith. A pinion gear is coupled to the handle shaft and formed with peripheral gear teeth in meshing engagement with the teeth of the rack. An operator controlled locking member is provided. The locking member is slidably coupled with respect to the handle shaft on the inside of the door to optionally lock and unlock the door and to preclude picking the lock.
대표청구항
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1. A door locking system comprising, in combination:a door having an outside surface and an inside surface and a hole in the door to receive a lock;a bolt receiving plate having a bolt aperture and a plurality of screw mounting holes there in;a pinion gear having a plurality of slots;a lock having a
1. A door locking system comprising, in combination:a door having an outside surface and an inside surface and a hole in the door to receive a lock;a bolt receiving plate having a bolt aperture and a plurality of screw mounting holes there in;a pinion gear having a plurality of slots;a lock having an internal lock housing having a handle and handle shaft and an external lock housing, the lock having a bolt operating mechanism comprising an engagement plate and a spring and a pinion gear and a gear shield and a handle plate and a bolt there between said slots adapted to receive the engagement plate and handle plate.2. The system as set forth in claim 1 and further including a handle plate biasing spring coupled to the internal housing and the handle plate.3. The system as set forth in claim 1 wherein the lock has a set of associated tumblers and a keyhole there into.4. The system as set forth in claim 1 further comprising:the handle shaft having a radial recess there in;the interior housing having a radially located and oriented locking member, the locking member being a radially oriented rod slidably mounted in the interior housing with a tip biased by a spring into contact with the handle shaft recess to be received by and mated with the handle shaft recess thereby preventing rotation or axial movement of the handle shaft.5. The system as set forth in claim 1 further comprising:the bolt receiving plate having a second bolt aperture there in;the bolt having a hole therein;a secondary bolt mounted in the door and configured to laterally slide between an unlocked orientation totally within the door and a locked orientation exterior of the door and extendable into the second bolt aperture in the bolt receiving plate, the secondary bolt having a spring biasing the secondary bolt to the locked orientation, the secondary bolt also having an interior knob for unlocking the secondary bolt from the inside and an exterior knob for unlocking the secondary bolt from the outside, the system also including a locking pin located on the interior surface of the door, the locking pin being slidable and perpendicular to the bolt, the locking pin engaging the hole in the bolt to prevent movement of the bolt.6. A door locking system for providing the user with a pick-proof lock comprising, in combination:a door having an outside surface with a lock hole of a first diameter and an inside surface with a lock hole of a first diameter, the door having a passageway there through between the outside surface lock hole and the inside surface lock hole for the passageway of a locking mechanism, the door having an edge surface located between the outside surface and the inside surface;a bolt receiving plate having a bolt aperture there through, the bolt receiving plate having a plurality of screw mounting holes there in;a lock having an internal lock housing and an external lock housing and a bolt operating mechanism there between, the external lock housing having a round tapered exterior configuration, the housing having an innermost portion and an outer portion, the innermost portion having a centrally located round tubular protrusion with a passageway there through and a round flat contacting surface, the protrusion being configured to be received by the lock hole in the outer surface of the door and to be contained there in, and the round flat contacting surface being configured to abut the outside surface of the door surface, the external lock housing having an internal tumbler mechanism and a rotatable key receiving shaft located therein, the key shaft having an interior end facing the inside of the door and an exterior end, the key shaft has a centrally located rectilinear aperture running there through, within, and coaxial with the key shaft, the internal lock housing of the lock having a round tapered exterior configuration, the housing having an innermost portion and an outer portion, the innermost portion having a centrally located round tubular protrusion with a lock handle shaft passageway there through and a round flat contacting surface, the protrusion being configured to be received by the lock hole in the inner surface of the door and to be contained there in, and the round flat contacting surface being configured to abut the inside surface of the door surface, the internal lock housing having a stepped rotating door handle shaft having a door end with a rectilinear recess and a handle end having a flattened handle receiving tip, the shaft having three exterior dimensions, a first dimension being located within the housing on the door end and a second dimension being between the door end and handle end of the shaft and the third dimension being located on the handle end of the shaft, with the first dimension being greater than the second dimension and the second dimension being greater than the third dimension, the handle shaft being limitedly movable in an axial back and forth direction by a user, the handle shaft being rotatable in a plane perpendicular to the axial movement of the shaft, the handle shaft being aligned with and contained within the lock handle shaft passageway;a handle being coupled to the handle shaft;a pinion subassembly having an engagement plate and a biasing spring and a pinion gear and a gear shield, the engagement plate having a flat stepped configuration with an outer end and a gear end and a spring portion there between, the outer end having a squared flat end having a fourth dimension with a downwardly projecting rectilinear tooth having a fifth dimension, the spring portion having a spring nest there in for receiving and holding a biasing spring therein, the biasing spring urging the plate in an outwardly direction toward the outer surface of the door, with the gear end having a downwardly projecting rectilinear tooth having a fifth dimension and a squared flat inner end, the pinion gear having an outer portion and an inner portion with a toothed portion there between, the pinion gear having a round hole having a fourth dimension there through, the outer portion of the pinion gear having a vertical slot sized to accommodate a fifth dimension cut there into with the slot sized to engage the downwardly projecting rectilinear tooth of the gear end of the engagement plate, the inner portion of the pinion gear having two slots each perpendicular to the other, with one inner portion pinion gear slot being deeper than the other inner portion pinion gear slot, with both slots having a fifth dimension, the subassembly gear shield having a hole there through, the hole having a diameter the size of the fifth dimension, the shield coupled to the innermost portion of the external lock housing;a bolt comprising a shaft having a generally rounded cross sectional shape with a flat slotted area having a plurality of pairs of gear engagement recesses there into, the gear engagement recesses sized to receive and accommodate the toothed portion of the pinion gear, the bolt being slidably mounted in the door and configured to laterally slide between an unlocked orientation with the bolt being totally within the door and a locked orientation wherein the bolt extends from the door edge and engages the bolt receiving plate; anda handle plate having a flat rectilinear configuration with a fifth dimension sized to be accepted by and accommodated by and slidable within the rectilinear recess of the handle shaft of the internal lock housing, the handle plate having a protruding tooth, said tooth protruding toward and coaxial with the key receiving shaft of the external lock housing.
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