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US 6,604,392 B1Granted
Cylinder lock device
AssigneeAlpha Corporation
InventorsToshikazu Kiso, Takashi Yoshizawa
Life of this patent
Estimating the term…
Abstract
A casing 20 of a cylinder lock device comprises two pieces of a rear casing 13 for receiving a rotor 22 and a front casing 14 for receiving a key cylinder 21 and a housing 24. The key cylinder and a rotor axially move and rotate upon insertion of a proper key 19 into the key cylinder 21 and subsequent rotation of the key 19. In assemblage of the cylinder lock device, the rotor 22 and key cylinder 21 are connected by a joint means 15 of non-circular section for their integral rotation, and the rotor 22 is connected to the housing 24 by a connecting means 16 for their integral rotation and axial movement. The front casing 14 can detachably be connected to the rear casing 13 by the coupling means 17.
Claims10
A cylinder lock device comprising a casing;
- a housing disposed in said casing for axial movement of said housing;
- a key cylinder disposed in said casing for rotation with a key;
- and a rotor having a cam and connected to said key cylinder for their integral rotation, said casing comprising a rear casing for receiving said rotor to form a casing unit, and a front casing for receiving said key cylinder, said housing and a cover secured to said front casing to form a single cylinder unit;
- a joint means comprising a non-circular section for detachably connecting said rotor and key cylinder for their integral rotation;
- connecting means having a first position for coupling said housing and rotor for their integral axial movement and a second position for uncoupling said rotor and housing when said key cylinder is disposed in said casing;
- a coupling means for detachably securing said front casing to said rear casing,
- wherein said single cylinder unit is removably coupled with said casing unit through said joint means, connecting means and coupling means to connect said rotor and key cylinder for their integral rotation, couple said rotor and housing for their integral axial movement and secure said front casing to rear casing;
- and
- said key cylinder, housing and rotor are axially moved when said key is inserted into or pulled out of said key cylinder, and said key cylinder and rotor are rotated together with said key.
6 more elements
A cylinder lock device comprising a casing;
- a housing disposed in said casing for axial movement of said housing;
- a key cylinder disposed in said casing for rotation with a key;
- a rotor having a cam and connected to said key cylinder for their integral rotation, said casing comprising a rear casing for receiving said rotor, and a front casing for receiving said key cylinder;
- a joint means of its non-circular section for connecting said rotor and key cylinder for their integral rotation;
- a connecting means for coupling said rotor and housing for their integral axial movement;
- and
- a coupling means for securing said front casing to said rear casing;
- said connecting means comprises hook having a claw and pivotally connected to said rotor, and a recess formed with said key cylinder;
- said hook rotatable through a notch formed in said housing to bring said claw of said hook into engagement with said recess when said key cylinder is in said specific angular position other than a locked position to pull said key out of said key cylinder;
- and
- said housing covering said hook to prevent rotation of said hook away from said recess when said key cylinder is rotated from the specific angular position;
- wherein said key cylinder, housing and rotor are axially moved when said key is inserted into or pulled out of said key cylinder, and said key cylinder and rotor are rotated together with said key.
9 more elements
A cylinder lock device which includes a casing;
- a housing disposed in said casing for axial movement of said housing;
- a key cylinder disposed in said casing for rotation with a key;
- a rotor having a cam and connected to said key cylinder for their integral rotation, said casing comprising a rear casing for receiving said rotor, and a front casing for receiving said key cylinder;
- a joint means of its non-circular section for connecting said rotor and key cylinder for their integral rotation;
- a connecting means for coupling said rotor and housing for their integral axial movement;
- and
- a coupling means for securing said front casing to said rear casing;
- said coupling means comprises a item disposed in a hole radially formed in said front casing, and a stem spring disposed in said hole for radially outward urging said stem;
- an outer end of said stem being releasably engaged with an outer hole radially formed in said rear casing;
- and said stem being inserted into an inner hole radially formed in said key cylinder in said specific angular position other than the locked position to extract said key from said key cylinder when said stem is pushed inward in said outer hole against resilient force of said stem spring;
- wherein said key cylinder, housing and rotor are axially moved when said key is inserted into or pulled out of said key cylinder, and said key cylinder and rotor are rotated tog ether with said key.
8 more elements
A cylinder lock device comprising a casing;
- a housing disposed in said casing for axial movement of said housing;
- a key cylinder disposed in said casing for rotation with a key;
- a rotor having a cam and connected to said key cylinder for their integral rotation, said casing comprising a rear casing for receiving said rotor, and a front casing for receiving said key cylinder;
- a joint means of its non-circular section for connecting said rotor and key cylinder for their integral rotation;
- a connecting means for coupling said rotor and housing for their integral axial movement;
- a coupling means for securing said front casing to said rear casing;
- a locking rod movable toward and away from a steering column shaft;
- a hanger connected to said locking rod for integral movement to an unlocked position during rotation of said rotor with said cam;
- a hanger spring for resiliently urging said hanger toward a locked position;
- a pin retractably extending from said hanger;
- and
- a housing spring for elastically and forwardly pushing said housing;
- wherein said key cylinder, housing and rotor are axially moved when said key is inserted into or pulled out of said key cylinder, and said key cylinder and rotor are rotated together with said key;
- said pin is retracted into said hanger when said rotor is moved back against pressure of said housing spring by insertion of said key into said key cylinder.
11 more elements
Dependencies are inferred from the claim text.