Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BURGLARPROOF DEVICE FOR BICYCLE, ETC.
Document Type and Number:
Japanese Patent JPH08270279
Kind Code:
A
Abstract:

PURPOSE: To simplify structure and reduce cost, and to facilitate handling by closing a reed switch previously fitted to an alarm device under an assembled state by a magnet and bringing an alarm driving device to the state of operation standby.

CONSTITUTION: When a burglarproof device for a bicycle, etc., is annexed to a wheel, engaging sections 37a, 37b at the left and right ends of a lock ring 35 are inserted into the left and right connecting holes 26 of a locking rod 25, and a movable engaging member is converted into the place of connection by key operation. The engaging sections 37a, 37b are interlinked with the movable engaging member, and the lock ring 35 is connected to the locking rod 25 in an undetachable manner. A permanent magnet is placed oppositely to a reed switch 11, the reeds of the reed switch 11 are brought into contact mutually and closed by the action of a magnetic field, and an alarm driving circuit is brought to the state of driving standby. When the lock ring 35 intends to be cut by a cutter, etc., under the state, vibrations with cutting are sensed by a vibrational sensor, and a buzzer rings while using a battery as a driving source. When locking is released, the movable engaging member is converted into the place of opening by key operation, and the lock ring 35 is extracted from the connecting holes 26 of the locking rod 25.


Inventors:
KOJIMA TAKIO
Application Number:
JP1995000098054
Publication Date:
October 15, 1996
Filing Date:
March 29, 1995
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NGK SPARK PLUG CO
International Classes:
E05B45/06; B62H5/16; E05B71/00; G08B13/14; G08B23/00; (IPC1-7): E05B45/06; B62H5/16; E05B71/00; G08B13/14; G08B23/00
Attorney, Agent or Firm:
松浦 喜多男