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US 7,677,511 B2Granted
Load-bearing frameworks
AssigneeWolfcraft GmbH
InventorUwe Radermacher
Life of this patent
Estimating the term…
Abstract
Load-bearing frameworks (40), tables or the like with four feet have at least one foot being formed by a cap (1) which is associated with a cap-carrier (2). The cap (1) can be rotated about a horizontal axis (25). The cap (1) forms a standing surface (3) by way of a portion of its circumferential surface (5). For stabilizing purposes, the circumferential surface (5) runs along a helical curve around the horizontal axis (25).
Claims23
A load-bearing framework comprising:
- a plurality of legs coupled to each other, the legs being positionable on a support surface, a first one of the legs extending along a first axis, the first leg having a first end;
- at least one tube coupled to the first end of the first leg, the tube extending along a second axis, the second axis intersecting with the first axis;
- a cap coupled to the at least one tube;
- at least one rotor which is rotatably coupled to the cap, the rotor being rotatable about the second axis, the rotor including an outer engagement wall configured to engage the support surface, the outer engagement wall having an asymmetrical shape, the at least one rotor being rotatable between:
- (a) a first position which distances the first end of the first leg from the support surface by a first distance;
- and
- (b) a second position which distances the first end of the first leg from the support surface by a greater, second distance.
4 more elements
A load-bearing framework comprising:
- a plurality of legs coupled to each other, the legs being positionable on a support surface, the legs including:
- (a) a first leg extending along a first axis, the first leg having a first lower portion and a first upper portion;
- (b) a second leg extending along a second axis, the second leg having a second lower portion and a second upper portion;
- a roller coupled to at least one of the first and second upper portions;
- and
- at least one rotor which is rotatably coupled to the first lower portion of the first leg, the at least one rotor being rotatable about a third axis, the at least one rotor including an outer engagement wall configured to engage the support surface, the outer engagement wall having an asymmetrical shape, the at least one rotor being rotatable between:
- (a) a first position which distances the first lower portion from the support surface by a first distance;
- and
- (b) a second position which distances the first lower portion from the support surface by a greater, second distance.
6 more elements
A load-bearing framework comprising:
- a plurality of legs coupled to each other, the legs being positionable on a support surface, a first one of the legs extending along a first axis, the first leg having a first end;
- a tube coupled to the first end of the first leg, the tube extending along a second axis, the tube having a tube end;
- a cap coupled to the tube end;
- and
- a rotor which is rotatably coupled to the tube end, the rotor being rotatable about the second axis, the rotor including a support surface engagement wall configured to engage the support surface, the support surface engagement wall having an asymmetrical shape, the support surface engagement wall defining an opening, the at least one rotor being rotatable between:
- (a) a first position in which the opening is oriented toward the support surface, the tube end being distanced from the support surface by a first distance;
- and
- (b) a second position in which the tube end is distanced from the support surface by a greater, second distance.
5 more elements
A load-bearing framework comprising:
- a plurality of legs coupled to each other, the legs being positionable on a support surface, a first one of the legs extending along a first axis, the first leg having a first end;
- a tube coupled to the first end of the first leg, the tube extending along a second axis, the tube having a tub end;
- a cap coupled to the tube end;
- and
- a rotor which is rotatably coupled to the cap, the rotor being rotatable about the second axis, the rotor including a support surface engagement wall configured to engage the support surface, the support surface engagement wall having an asymmetrical shape, the support surface engagement wall defining an opening, the at least one rotor being rotatable between:
- (a) a first position in which the opening is oriented toward the support surface, the tube end being distanced from the support surface by a first distance;
- and
- (b) a second position in which the tube end is distanced from the support surface by a greater, second distance.
5 more elements
A load-bearing framework comprising:
- a plurality of legs coupled to each other, the legs being positionable on a support surface, a first one of the legs extending along a first axis, the first leg having a first end;
- a tube coupled to the first end of the first leg, the tube extending along a second axis, the tube having a tub end;
- and
- a rotor which is rotatably coupled to the tube end, the rotor being rotatable about the second axis, the rotor including a support surface engagement wall configured to engage the support surface, the support surface engagement wall being helically-shaped, the support surface engagement wall defining an opening, the at least one rotor being rotatable between:
- (a) a first position in which the opening is oriented toward the support surface, the tube end being distanced from the support surface by a first distance;
- and
- (b) a second position in which the tube end is distanced from the support surface by a greater, second distance.
4 more elements
Dependencies are inferred from the claim text.