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Patent Searching and Data


Title:
LOCKING DEVICE FOR VEHICLES
Document Type and Number:
WIPO Patent Application WO/1997/037096
Kind Code:
A1
Abstract:
A locking device having both of a wireless door locking function and an immobilizer function. A cell (30), a switch (32) and a control IC (28) are accommodated inside a key (26). An antenna coil (12) is disposed at the end of a key cylinder (10). A wireless antenna (20) is disposed at a predetermined position of a vehicle. When the switch (32) is turned on, the control IC (28) transmits a wireless signal, and the wireless door locking function is fulfilled. When the key (26) is inserted into the key cylinder (10), the control IC (28) inhibits the transmission of the wireless signal, exchanges ID codes with the antenna coil (12) and performs the immobilizer function.

Inventors:
OHNISHI NORIYASU (JP)
FUKUTA YOSHIHIRO (JP)
YAMAMOTO KEIJI (JP)
Application Number:
PCT/JP1997/001116
Publication Date:
October 09, 1997
Filing Date:
March 31, 1997
Export Citation:
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Assignee:
TOYOTA MOTOR CO LTD (JP)
OHNISHI NORIYASU (JP)
FUKUTA YOSHIHIRO (JP)
YAMAMOTO KEIJI (JP)
International Classes:
B60R25/01; B60R25/24; E05B49/00; E05B83/36; G07C9/00; (IPC1-7): E05B65/20; E05B49/00
Foreign References:
JPH0886130A1996-04-02
JPH0738503U1995-07-14
JPS62203854A1987-09-08
JPH0498974U1992-08-26
JPS62283705A1987-12-09
JPS63107669A1988-05-12
JPH07205759A1995-08-08
JPH09105255A1997-04-22
Other References:
See also references of EP 0892134A4
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