Alarm generating door lock
First Claim
1. A door lock comprising:
- a body;
a locking device installed in part of the body to lock and unlock an entrance door and having a first handle provided at an inner side of the entrance door, a lock assembly engaged with the first handle when a normal key is inserted, and a locking member actuated by rotation of the first handle;
a first sensing device which becomes an ON state as the locking member protrudes outside the locking device and an OFF state as the protruded locking member retreats;
a speaker generating alarm when the first sensing device senses an intruder; and
a power portion supplying electric power to the first sensing device and the speaker, wherein holes, through which the first handle and part of the first sensing device are exposed, are formed at an outer surface of the body, a cover is provided at a portion corresponding to the power portion, and the speaker is installed on the body so that sound is emitted out of the body.
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Accused Products
Abstract
A door lock includes a body, a locking device installed in part of the body to lock and unlock an entrance door and having a first handle provided at an inner side of the entrance door, a lock assembly engaged with the first handle when a normal key is inserted, and a locking member actuated by rotation of the first handle, a first sensing device which becomes an ON state as the locking member protrudes outside the locking device and an OFF state as the protruded locking member retreats, a speaker generating alarm when the first sensing device senses an intruder, and a power portion supplying electric power to the first sensing device and the speaker, wherein holes, through which the first handle and part of the first sensing device are exposed, are formed at an outer surface of the body, a cover is provided at a portion corresponding to the power portion, and the speaker is installed on the body so that sound is emitted out of the body.
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Citations
17 Claims
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1. A door lock comprising:
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a body;
a locking device installed in part of the body to lock and unlock an entrance door and having a first handle provided at an inner side of the entrance door, a lock assembly engaged with the first handle when a normal key is inserted, and a locking member actuated by rotation of the first handle;
a first sensing device which becomes an ON state as the locking member protrudes outside the locking device and an OFF state as the protruded locking member retreats;
a speaker generating alarm when the first sensing device senses an intruder; and
a power portion supplying electric power to the first sensing device and the speaker, wherein holes, through which the first handle and part of the first sensing device are exposed, are formed at an outer surface of the body, a cover is provided at a portion corresponding to the power portion, and the speaker is installed on the body so that sound is emitted out of the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A door lock comprising:
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a body;
a locking device installed in part of the body to lock and unlock an entrance door and having a first handle provided at an inner side of the entrance door, a lock assembly provided at an outer side of the entrance door and engaged with the first handle when a normal key is inserted, and a locking member actuated by rotation of the first handle;
a remote controller which becomes an ON state as the locking member protrudes outside the locking device and an OFF state as the protruded locking member retreats;
a speaker generating alarm when a foreign material, not a key, is inserted in the lock assembly;
a power portion supplying electric power to the remote controller and the speaker; and
a sensing device provided at a place remote from the remote controller and operated by the remote controller, wherein holes, through which the first handle and part of the first sensing device are exposed, are formed at an outer surface of the body, a cover is provided at a portion corresponding to the power portion, and the speaker is installed on the body so that sound is dissipated out of the body. - View Dependent Claims (15, 16, 17)
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Specification