JPH0610479Y2 - 警報装置用チョッキ装置 - Google Patents

警報装置用チョッキ装置

Info

Publication number
JPH0610479Y2
JPH0610479Y2 JP8409388U JP8409388U JPH0610479Y2 JP H0610479 Y2 JPH0610479 Y2 JP H0610479Y2 JP 8409388 U JP8409388 U JP 8409388U JP 8409388 U JP8409388 U JP 8409388U JP H0610479 Y2 JPH0610479 Y2 JP H0610479Y2
Authority
JP
Japan
Prior art keywords
ultrasonic wave
receivers
excitation circuit
waistcoat
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP8409388U
Other languages
English (en)
Japanese (ja)
Other versions
JPH026399U (enrdf_load_html_response
Inventor
良平 茂木
功 滝口
徹哉 石井
洋一 広川
幸男 吉田
漠 高野
知宏 後町
智彦 田中
生雅 山辺
義満 橋本
Original Assignee
株式会社トキメック
日本鋪道株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社トキメック, 日本鋪道株式会社 filed Critical 株式会社トキメック
Priority to JP8409388U priority Critical patent/JPH0610479Y2/ja
Priority to US07/215,554 priority patent/US4937795A/en
Priority to DE3822916A priority patent/DE3822916A1/de
Publication of JPH026399U publication Critical patent/JPH026399U/ja
Application granted granted Critical
Publication of JPH0610479Y2 publication Critical patent/JPH0610479Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/24Safety devices, e.g. for preventing overload

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
JP8409388U 1987-07-06 1988-06-25 警報装置用チョッキ装置 Expired - Lifetime JPH0610479Y2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8409388U JPH0610479Y2 (ja) 1988-06-25 1988-06-25 警報装置用チョッキ装置
US07/215,554 US4937795A (en) 1987-07-06 1988-07-05 Access alarming method and apparatus for working vehicle
DE3822916A DE3822916A1 (de) 1987-07-06 1988-07-06 Warnverfahren und -vorrichtung fuer ein arbeitsfahrzeug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8409388U JPH0610479Y2 (ja) 1988-06-25 1988-06-25 警報装置用チョッキ装置

Publications (2)

Publication Number Publication Date
JPH026399U JPH026399U (enrdf_load_html_response) 1990-01-17
JPH0610479Y2 true JPH0610479Y2 (ja) 1994-03-16

Family

ID=31308794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8409388U Expired - Lifetime JPH0610479Y2 (ja) 1987-07-06 1988-06-25 警報装置用チョッキ装置

Country Status (1)

Country Link
JP (1) JPH0610479Y2 (enrdf_load_html_response)

Also Published As

Publication number Publication date
JPH026399U (enrdf_load_html_response) 1990-01-17

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