Title:
無電源式セキュリティ装置
Document Type and Number:
Japanese Patent JP4048212
Kind Code:
B2
Abstract:
In order to provide a piezoelectric generating apparatus which ensures by one-time beating an electricity generation of more than dozens of times an output current that a piezoelectric generating apparatus with a conventional steel ball produces, a piezoelectric generating apparatus 1 comprises a piezoelectric ceramic boy 10 ; a cushion member 3 which supports the piezoelectric ceramic body 10 in a soft condition of hardly transmitting a characteristic vibration of the piezoelectric ceramic body 10 to other structure; and a beating means 20 which has an impact on the piezoelectric ceramic body 10 , the beating means 20 further comprising a hammer body 21, an elastic body 24 boosting the hammer body 21 in a direction of separating from the piezoelectric ceramic body 10 in the ordinary state and a switch member 27 changing a boosting direction of the elastic body 24.
Inventors:
Yasuhiro Sakai
Application Number:
JP2005502874A
Publication Date:
February 20, 2008
Filing Date:
February 24, 2004
Export Citation:
Assignee:
USC Corporation
International Classes:
H02N2/00; E05B45/06; F03G7/06; F03G7/08; G08B13/08; G08B13/16; H01L41/113; H02N2/18; E05B41/00; E05B47/00; E05B65/08; E05C3/04
Domestic Patent References:
| JP10222773A | ||||
| JP2003505803A | ||||
| JP2001145375A | ||||
| JP8140369A | ||||
| JP10229684A | ||||
| JP9182465A | ||||
| JP676894U |
Attorney, Agent or Firm:
Tetsuo Yamaguchi