JPH01179999U - - Google Patents
Info
- Publication number
- JPH01179999U JPH01179999U JP9784988U JP9784988U JPH01179999U JP H01179999 U JPH01179999 U JP H01179999U JP 9784988 U JP9784988 U JP 9784988U JP 9784988 U JP9784988 U JP 9784988U JP H01179999 U JPH01179999 U JP H01179999U
- Authority
- JP
- Japan
- Prior art keywords
- safety ladder
- leg
- ladder according
- switch
- end member
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 claims 3
- 230000007423 decrease Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Ladders (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Emergency Alarm Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9784988U JPH0640320Y2 (ja) | 1988-01-22 | 1988-07-26 | 安全梯子 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP600188 | 1988-01-22 | ||
| JP63-6001 | 1988-01-22 | ||
| JP9784988U JPH0640320Y2 (ja) | 1988-01-22 | 1988-07-26 | 安全梯子 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01179999U true JPH01179999U (enExample) | 1989-12-25 |
| JPH0640320Y2 JPH0640320Y2 (ja) | 1994-10-19 |
Family
ID=31717099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9784988U Expired - Lifetime JPH0640320Y2 (ja) | 1988-01-22 | 1988-07-26 | 安全梯子 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0640320Y2 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018071064A (ja) * | 2016-10-25 | 2018-05-10 | 株式会社中電工 | 脚立監視装置 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102042732B1 (ko) * | 2019-01-24 | 2019-11-27 | 이거송 | 전도방지용 인공지능 사다리 |
-
1988
- 1988-07-26 JP JP9784988U patent/JPH0640320Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018071064A (ja) * | 2016-10-25 | 2018-05-10 | 株式会社中電工 | 脚立監視装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0640320Y2 (ja) | 1994-10-19 |