JPH0380959B2 - - Google Patents

Info

Publication number
JPH0380959B2
JPH0380959B2 JP57174114A JP17411482A JPH0380959B2 JP H0380959 B2 JPH0380959 B2 JP H0380959B2 JP 57174114 A JP57174114 A JP 57174114A JP 17411482 A JP17411482 A JP 17411482A JP H0380959 B2 JPH0380959 B2 JP H0380959B2
Authority
JP
Japan
Prior art keywords
sleeve
rod
extension device
ladder
safety extension
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
JP57174114A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5891283A (ja
Inventor
Jei Raionsu Robaato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BIRUKO CO ZA
Original Assignee
BIRUKO CO ZA
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 BIRUKO CO ZA filed Critical BIRUKO CO ZA
Publication of JPS5891283A publication Critical patent/JPS5891283A/ja
Publication of JPH0380959B2 publication Critical patent/JPH0380959B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Ladders (AREA)
JP17411482A 1981-10-05 1982-10-05 調節自在マウントを有する固定梯子用安全伸長装置 Granted JPS5891283A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US30894681A 1981-10-05 1981-10-05
US6/308946 1981-10-05
US6/406359 1982-08-09

Publications (2)

Publication Number Publication Date
JPS5891283A JPS5891283A (ja) 1983-05-31
JPH0380959B2 true JPH0380959B2 (https=) 1991-12-26

Family

ID=23196026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17411482A Granted JPS5891283A (ja) 1981-10-05 1982-10-05 調節自在マウントを有する固定梯子用安全伸長装置

Country Status (1)

Country Link
JP (1) JPS5891283A (https=)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455414A (en) * 1968-03-20 1969-07-15 Joseph J Higgins Retractable extension for fixed ladders
US3598200A (en) * 1970-07-09 1971-08-10 Meyer Mfg Inc Extensible safety appliance for manhole ladders

Also Published As

Publication number Publication date
JPS5891283A (ja) 1983-05-31

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