SE0003154D0 - Ladder with self-adjusting extension legs - Google Patents
Ladder with self-adjusting extension legsInfo
- Publication number
- SE0003154D0 SE0003154D0 SE0003154A SE0003154A SE0003154D0 SE 0003154 D0 SE0003154 D0 SE 0003154D0 SE 0003154 A SE0003154 A SE 0003154A SE 0003154 A SE0003154 A SE 0003154A SE 0003154 D0 SE0003154 D0 SE 0003154D0
- Authority
- SE
- Sweden
- Prior art keywords
- legs
- ladder
- extension legs
- extension
- movable
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/44—Means for mounting ladders on uneven ground
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to a ladder provided with an arrangement for maintaining the ladder in upright position independent of the contour of the supporting surface. This is obtained, according to the invention, by providing the ladder with two extension legs (9,10) which are slidably carried by the side legs (1, 2) of the ladder. The extension legs are suspended by a flexible connection (11) running through a hollow step member (3) at the upper part of the extension legs. The extension legs are journalled movable on the side legs (1, 2) lockable to the side legs by locking controls (16) movable downwards on the side legs. For operating the locking controls there is a further flexible connection (14) arranged between the locking controls (16) and running through a hollow step member at the bottom part of the extension legs (9, 10). Hence, the two extension legs are movable in opposite directions a decided distance, but when the extension legs are moved upwards the locking controls are pulled downwards by the flexible connection (14) causing locking of the extension legs (9, 10) to the side legs (1, 2).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0003154A SE517635C2 (en) | 2000-09-07 | 2000-09-07 | Ladder with self-adjusting extension legs |
AU2001284601A AU2001284601A1 (en) | 2000-09-07 | 2001-09-06 | Ladder with self-adjusting extension legs |
PCT/SE2001/001912 WO2002020933A1 (en) | 2000-09-07 | 2001-09-06 | Ladder with self-adjusting extension legs |
EP01963672A EP1320658A1 (en) | 2000-09-07 | 2001-09-06 | Ladder with self-adjusting extension legs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0003154A SE517635C2 (en) | 2000-09-07 | 2000-09-07 | Ladder with self-adjusting extension legs |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0003154D0 true SE0003154D0 (en) | 2000-09-07 |
SE0003154L SE0003154L (en) | 2002-03-08 |
SE517635C2 SE517635C2 (en) | 2002-06-25 |
Family
ID=20280914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0003154A SE517635C2 (en) | 2000-09-07 | 2000-09-07 | Ladder with self-adjusting extension legs |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1320658A1 (en) |
AU (1) | AU2001284601A1 (en) |
SE (1) | SE517635C2 (en) |
WO (1) | WO2002020933A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2481449A (en) | 2010-06-25 | 2011-12-28 | Warrentech Ltd | A levelling device |
NO20151343A1 (en) | 2015-10-08 | 2017-04-10 | Inventu As | Device for leveling ladders, as well as a tensioning device and fastening device for such ladder. |
DE102020001940A1 (en) | 2020-03-26 | 2021-09-30 | Klaus-Peter Laube | Self-regulating stand for ladders and scaffolding stands |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2330825A (en) * | 1942-04-01 | 1943-10-05 | Henry M Hoit | Ladder |
US2890824A (en) * | 1954-08-26 | 1959-06-16 | Richard F Derby | Leg length adjusting apparatus |
US4766976A (en) * | 1987-08-28 | 1988-08-30 | Emerson Electric Co. | Ladder leg extender and leveler |
-
2000
- 2000-09-07 SE SE0003154A patent/SE517635C2/en not_active IP Right Cessation
-
2001
- 2001-09-06 AU AU2001284601A patent/AU2001284601A1/en not_active Abandoned
- 2001-09-06 EP EP01963672A patent/EP1320658A1/en not_active Withdrawn
- 2001-09-06 WO PCT/SE2001/001912 patent/WO2002020933A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU2001284601A1 (en) | 2002-03-22 |
SE0003154L (en) | 2002-03-08 |
EP1320658A1 (en) | 2003-06-25 |
WO2002020933A1 (en) | 2002-03-14 |
SE517635C2 (en) | 2002-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE326884T1 (en) | CONFIGURABLE INFLATABLE SUPPORT DEVICE | |
ATE194270T1 (en) | HANGER | |
AU2003273642A8 (en) | Recliner chair having a turning up and stretching out footrest mechanism | |
SE0003154D0 (en) | Ladder with self-adjusting extension legs | |
ATE374563T1 (en) | HEIGHT ADJUSTMENT MECHANISM | |
WO2003020078A3 (en) | Chair | |
SE9501626D0 (en) | Support legs | |
ATE252859T1 (en) | FOLDING TABLE | |
SE9900293L (en) | Adjustable table | |
SE0001154L (en) | BED | |
ATE373977T1 (en) | ARMREST FOR CHAIRS, ESPECIALLY SWIVEL OFFICE CHAIRS | |
DE50302227D1 (en) | Armrest height adjustable | |
DE50209853D1 (en) | chair | |
ATE298516T1 (en) | SEATING AND/OR LOUNGING FURNITURE WITH LEG SUPPORT | |
EP0951849A3 (en) | Seat suspended to a wall holder | |
ATE305734T1 (en) | SEATING FURNITURE | |
ATE173686T1 (en) | LOCKING DEVICE | |
KR100453482B1 (en) | a workbench for a wallpapering | |
TW582446U (en) | Folding step stools | |
BR0106977A (en) | Monkey | |
KR200331370Y1 (en) | Industrial seat | |
SE9900488L (en) | Adjustable table | |
IT201600084413A1 (en) | IMPROVED ERGONOMIC SITTING DEVICE | |
DE50201661D1 (en) | seating | |
DE60007726D1 (en) | Adjustable leg |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |