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US 2008/0164097 A1Published application
Collapsible Combination Ladder
AssigneeTelesteps AB
InventorPer-Olof Eriksson
Life of this patent
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AssigneeTelesteps AB
InventorPer-Olof Eriksson
Estimating the term…
A collapsible stepladder (1) comprising two ladder legs (2, 3), where the legs (2, 3) are hingedly connected to each other in one end. Each of the ladder legs (2, 3) comprises several ladder sections (4a-4d), and where each section comprises two ladder bars (6, 7) arranged parallel to each other and interconnected at one end by a rung (8) to form a U-shaped ladder section. The ladder sections are telescopically inserted into a lower ladder section (4e) to form a collapsible ladder comprising at least three ladder sections. One of the ladder legs (3) is provided with a support part (12) in one end. The support part (12) is telescopically extendible from the ladder leg (3) and forms an extension ladder of the ladder leg and where the support part (12) projects above a hinge (5) between the two ladder legs (2, 3).
A collapsible stepladder (1) comprising a first and a second ladder leg (2, 3), where the legs (2, 3) are hingedly connected to each other in one end, and where each of the ladder legs (2, 3) comprises several ladder sections (4a-4e), and where each section (4a-4d) comprises two ladder bars (6, 7) arranged parallel to each other and interconnected at one end by a rung (8) to form a U-shaped ladder section, furthermore each ladder section (4a-4d) are telescopically inserted into a lower ladder section to form a collapsible ladder comprising at least three ladder sections, where the second ladder leg (3) is provided with a support part (12) in one end, the support part (12) being telescopically extendible from the ladder leg (3) to form an extension ladder of the ladder leg (3), wherein the support part (12) projects above a hinge (5) interconnecting the two ladder legs (2, 3), characterized in that the collapsible stepladder (1) is arranged to be converted to a straight ladder.
A collapsible stepladder (1) according to any of the preceding claims, wherein the support part (12) comprises at least one collapsible ladder section (12a, 12b, 12c).
A collapsible stepladder (1) according to any of the preceding claims, wherein the support part (12) is provided with means to hold tools, paint or other working materials.
A collapsible stepladder (1) according to any of the preceding claims, wherein the two ladder legs (2, 3) are connected by a flexible link (14), provided between corresponding ladder sections (4b-4d) of the ladder legs to prevent the ladder legs (2, 3) of the stepladder from splaying apart during use.
A collapsible stepladder (1) according to any of the preceding claims, wherein the two ladder legs (2, 3) are connected by a locking device (20), provided between corresponding ladder sections (4b-4d) of the ladder legs to prevent the ladder legs (2, 3) of the stepladder from moving in relation to each other during use.
A collapsible stepladder (1) according to any of the preceding claims, wherein at least one of ladder legs (2, 3) of the stepladder is provided with means (10) for improving lateral stability.
Dependencies are inferred from the claim text.