| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify a car lock from a structural point of view and an assembling technic point of view as well. SOLUTION: An unlocking lever 8 of a chain lock device is a double arm pivoted coaxially with a twisting core 13. One arm of the unlocking levers 8 works as a locking clay operation lever arm 8a while the other arm works cooperating with a spindle nut 12. Two switches 16 and 17 are provided in the range of the locking lever 8 provided with a rotary switch 6, a locking claw 7 and the twisting core 13. The unlocking lever 8 is moved to an opening position by the spindle nut 12. When the twisting core 13 is turned by a first rotary angle by the unlocking cylinder by way of a key, a switch 16 is operated with the twisting core 13. When the twisting core 13 is turned by a second rotary angle by the locking cylinder by way of the key, the unlocking lever 8 is moved to the open position, when the locking claw is moved from a block position to the open position by the unlocking lever 8, a switch 17 will be operated with a breacket 7a of the locking claw.</p> |
