WO2017073979A3 - Ladder overturn prevention device - Google Patents
Ladder overturn prevention device Download PDFInfo
- Publication number
- WO2017073979A3 WO2017073979A3 PCT/KR2016/012006 KR2016012006W WO2017073979A3 WO 2017073979 A3 WO2017073979 A3 WO 2017073979A3 KR 2016012006 W KR2016012006 W KR 2016012006W WO 2017073979 A3 WO2017073979 A3 WO 2017073979A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pivot
- outrigger
- ladder
- lever
- outrigger leg
- Prior art date
Links
Landscapes
- Ladders (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The present invention provides a ladder overturn prevention device capable of supporting a ladder firmly and stably, thereby preventing the same from overturning. The present invention comprises a pivot bracket, an outrigger leg, a lever, a slider, a locking link, and a spring element. The pivot bracket is mounted on a side rail of the ladder. A first pivot is coupled to a distal part of the lower portion of the pivot bracket, which is arranged on a side far from the side rail. A second pivot is coupled to a proximal part of the upper portion of the pivot bracket, which is arranged to be adjacent to the side rail. The outrigger leg has a first end, which is rotatably coupled to the first pivot, and a second end, which can be supported on the floor. A rail groove is formed on the outer surface of the outrigger along the longitudinal direction. The outrigger leg rotates about the first pivot between a folded position, in which the same is folded with regard to the side rail, and an unfolded position, in which the same is unfolded from the side rail and can support the second end on the floor. The lever has a first end, which is rotatably coupled to the second pivot, and a second end, to which a third pivot is coupled. The slider is mounted on the rail groove to be able to slide along the rail groove. The same has a guide slot formed along the longitudinal direction. The locking link is mounted so as to connect the third pivot and the guide slot in an operational manner, and constrains the rotation of the outrigger leg in the unfolded position of the outrigger leg. The spring element is mounted such that the slider can be elastically deflected towards the first end of the lever. According to the present invention, when the outrigger lever is unfolded and supported on the floor, the lever and the locking link interwork together with the outrigger leg and constrain the rotation of the outrigger leg such that the ladder is supported by the outrigger leg firmly and stably, thereby preventing the ladder from overturning very effectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020150007031U KR200479669Y1 (en) | 2015-10-29 | 2015-10-29 | Device for preventing falling down of ladder |
| KR20-2015-0007031 | 2015-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2017073979A2 WO2017073979A2 (en) | 2017-05-04 |
| WO2017073979A3 true WO2017073979A3 (en) | 2017-06-22 |
Family
ID=55446415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2016/012006 WO2017073979A2 (en) | 2015-10-29 | 2016-10-25 | Ladder overturn prevention device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200479669Y1 (en) |
| WO (1) | WO2017073979A2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101976688B1 (en) | 2018-03-07 | 2019-05-09 | 현대엔지니어링 주식회사 | ladder safety facilities |
| KR102582621B1 (en) | 2018-04-24 | 2023-09-25 | 한화오션 주식회사 | Overturn Preventing device for ladder |
| KR102131219B1 (en) * | 2018-07-10 | 2020-07-07 | 구경화 | Stopper Assembly |
| KR20200036123A (en) | 2018-09-27 | 2020-04-07 | 임선우 | safety stepladder |
| KR102042731B1 (en) | 2019-01-24 | 2019-11-08 | 이거송 | A safety structure of ladder |
| CN110630168B (en) * | 2019-09-06 | 2024-07-02 | 苏州飞华铝制工业有限公司 | Foldable pillar structure with locking function |
| KR102186288B1 (en) * | 2020-03-09 | 2020-12-03 | 주식회사 유니테크 시스템 | Vibration reduction device and multi-stage seats comprising the same |
| CA3180952A1 (en) * | 2020-06-09 | 2021-12-16 | Chang-I Shih | Lateral stabilizing device for working ladder |
| KR102555757B1 (en) * | 2021-04-12 | 2023-07-14 | 한국산업안전보건공단 | Platform ladder device |
| KR20240124681A (en) | 2023-02-09 | 2024-08-19 | 이희범 | Fall prevention band and building structure having the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200420842Y1 (en) * | 2006-04-21 | 2006-07-06 | 이상구 | Ladder for prevent from fall sideward |
| KR100855365B1 (en) * | 2007-05-04 | 2008-09-04 | 이영학 | The workbench |
| JP4577498B2 (en) * | 2005-01-26 | 2010-11-10 | イーグルクランプ株式会社 | Ladder stabilizer |
| KR200455632Y1 (en) * | 2009-02-11 | 2011-09-16 | 김만섭 | Overturn Preventing device for ladder |
| JP2013249612A (en) * | 2012-05-31 | 2013-12-12 | Alinco Inc | Outrigger device in high place work device |
-
2015
- 2015-10-29 KR KR2020150007031U patent/KR200479669Y1/en active IP Right Grant
-
2016
- 2016-10-25 WO PCT/KR2016/012006 patent/WO2017073979A2/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4577498B2 (en) * | 2005-01-26 | 2010-11-10 | イーグルクランプ株式会社 | Ladder stabilizer |
| KR200420842Y1 (en) * | 2006-04-21 | 2006-07-06 | 이상구 | Ladder for prevent from fall sideward |
| KR100855365B1 (en) * | 2007-05-04 | 2008-09-04 | 이영학 | The workbench |
| KR200455632Y1 (en) * | 2009-02-11 | 2011-09-16 | 김만섭 | Overturn Preventing device for ladder |
| JP2013249612A (en) * | 2012-05-31 | 2013-12-12 | Alinco Inc | Outrigger device in high place work device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017073979A2 (en) | 2017-05-04 |
| KR200479669Y1 (en) | 2016-02-23 |
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