Cylinder lock and door
AssigneeLIXIL Corporation
InventorsFuminori AKIYAMA, Takashi MITSUHASHI
Life of this patent
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Abstract
The present invention provides a cylinder lock that is capable of preventing a driver pin from falling over inside a pin hole even when the driver pin has been shortened. The cylinder lock comprises an outer cylinder and an inner cylinder that rotatably fits into the outer cylinder. The outer cylinder and the inner cylinder each have a hole formed therein which connects to a key hole and into which the driver pin can be inserted. The diameter of the outer cylinder side of the driver pin is greater than the diameter of the inner cylinder side of the driver pin. An orientation-maintaining region having a prescribed length in the axial direction and a fixed diameter is preferably provided at the outer cylinder-side end of the driver pin.
Claims5
A cylinder lock, comprising:
- an outer cylinder;
- and
- an inner cylinder rotatably engaging with the outer cylinder, wherein
- a hole is formed in the outer cylinder and the inner cylinder, in which the hole communicates with a keyhole, and a driver pin can be inserted through the hole, and
- a diameter of the driver pin on a side of the outer cylinder is larger than a diameter of the driver pin on a side of the inner cylinder.
Dependencies are inferred from the claim text.