Remote-controlled door lock

Details Remote-controlled door lock Remote-controlled door lock

2002-07-22

2004-03-02

Knight, Anthony (Department: 3676)

Locks

Special application

For automotive vehicles

C070S107000, C070S108000, C070S279100, C070S280000

Reexamination Certificate

active

06698263

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a remote-controlled door lock, particularly to one able to lock a door by the valve rod of an electromagnetic valve controlled by a remote controller, with the door lock impossible to be unlocked only by a key before the valve rod of the electromagnetic valve is released by a remote controller to disengage from the insert hole of the bolt base of a door jamb, having best effect of anti-theft.
2. Description of the Prior Art
A conventional door lock as shown in
FIG. 1
, includes a housing
10
, a lock base
11
, a pull plate
12
and a deadbolt
13
.
The lock base
11
is secured in the interior of the housing
10
, having lateral lock rods
110
fitted at one side. The lock rods
110
of the lock base
11
are able to extend out of the through holes
100
in a side wall of the housing
10
and engage into an elongate slot
141
in a side wall of the bolt base
140
of a door jamb
14
. The lock base
11
has its inner and outer side respectively provided with a lock core
111
having a keyhole
112
.
The pull plate
12
has its fixing plate
120
inserted in the slide hole
101
of the housing
10
and combined with the fixing plate
102
of the housing
10
. The deadbolt
13
is horizontally fitted inside the housing
10
, having one end inserted through the fixing plate
102
of the housing
10
and secured with the fixing plate
120
of the pull plate
12
. The deadbolt
13
has one end fitted with a spring
130
and the other end provided with a block
131
protruding out of the through hole
103
in the side wall of the housing
10
to be engaged in an elongate slot
141
in a side wall of the bolt base
140
on the doorjamb
14
.
Thus, when a key is inserted in the keyhole
112
of the lock core
111
and turned around, the lock rods
110
and the block
131
will be moved back and disengaged from the elongate slot
141
of the bolt base
140
on the doorjamb
14
, thus finishing unlocking of the door lock.
However, a conventional door lock has its lock rods
110
and block
131
locked in the bolt base
140
of the door jamb
14
only by a key so it is easy to be unlocked with some unlocking tools, thus having no effect of anti-theft.
SUMMARY OF THE INVENTION
The objective of the invention is devised to offer a remote-controlled door lock having best effect of anti-theft.
The feature of the invention is that the housing is installed inside with a battery base, a circuit board and an electromagnetic valve. The electromagnetic valve has a lateral valve rod able to extend out of the through hole in a sidewall of the housing and engage in the insert hole in a sidewall of the bolt base of a doorjamb.


REFERENCES:
patent: 1358445 (1920-11-01), Hermanowich
patent: 4677834 (1987-07-01), Hicks
patent: 4730471 (1988-03-01), Seckinger et al.
patent: 4784415 (1988-11-01), Malaval
patent: 5386713 (1995-02-01), Wilson
patent: 5626039 (1997-05-01), Solari et al.
patent: 5852944 (1998-12-01), Collard et al.
patent: 5862693 (1999-01-01), Myers et al.
patent: 5987818 (1999-11-01), Dabideen
patent: 6035676 (2000-03-01), Hudspeth
patent: 6079755 (2000-06-01), Chang
patent: 2653480 (1991-04-01), None
patent: 2193994 (1988-02-01), None
patent: 2196382 (1988-04-01), None

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