Key cylinder device
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorToshiaki Yamaguchi
Life of this patent
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Abstract
A key cylinder device includes a cylindrical rotor case, a rotor rotatably enclosed in the rotor case, a sleeve fixedly disposed between the rotor and the rotor case, and a tumbler moving in a radial direction inside the rotor by insertion and extraction of a mechanical key into and from the rotor. The sleeve includes a hole not engaged with the tumbler by the insertion of the mechanical key and engaged by the extraction of the mechanical key, and a dividing wall formed at a middle of the hole, the dividing wall receiving the tumbler. A part of the dividing wall is engaged with a recessed groove formed on an inner peripheral surface of the rotor case.
Claims5
A key cylinder device, comprising:
- a cylindrical rotor case;
- a rotor rotatably enclosed in the rotor case;
- a sleeve fixedly disposed between the rotor and the rotor case;
- and
- a tumbler moving in a radial direction inside the rotor by insertion and extraction of a mechanical key into and from the rotor,
- wherein the sleeve comprises a hole not engaged with the tumbler by the insertion of the mechanical key and engaged by the extraction of the mechanical key, and a dividing wall formed at a middle of the hole, the dividing wall receiving the tumbler, and
- wherein the sleeve is formed separately from the rotor case and non-rotatably mounted therein by a part of the dividing wall being inserted into and fixed in a recessed groove formed on an inner peripheral surface of the rotor case along a direction of a rotor rotation axis thereby locking the sleeve so as to rotate with the rotor case.
Dependencies are inferred from the claim text.