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US 6,601,794 B2Granted
Cable drum
AssigneeRotzler GmbH & Co. KG
InventorRalf Brutschin
Life of this patent
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Abstract
A cable drum, having a substantially cylindrical drum body with drum walls arranged at its axial ends and a groove arrangement arranged on the drum body, enables winding of a cable in a rotational direction clockwise as well as counter-clockwise thereto. The groove arrangement has parallel areas in which the grooves are parallel to the circumferential direction and incline areas in which the grooves are slanted at an angle relative to the circumferential direction of the drum body. All grooves in the parallel areas have identical groove width. The grooves in the incline areas cross one another.
Claims9
A cable drum comprising:
- a substantially cylindrical drum body (21) having axial ends and drum walls (12, 13) arranged on the axial ends;
- a groove arrangement provided on the drum body (21);
- the groove arrangement comprising at least one parallel area (2, 3) and at least one incline area (6, 7), wherein the at least one parallel area (2, 3) consists of first grooves (4, 5) and the at least one incline area (6, 7) consists of second grooves (8, 9, 10,11), wherein the first grooves (4, 5) extend parallel to a circumferential direction of the drum body (21) and wherein the second grooves (8, 9, 10, 11) are slanted by an angle relative to the circumferential direction of the drum body (21);
- wherein all of the first grooves (4, 5) have an identical groove width (a);
- and
- wherein the second grooves (8, 9, 10, 11) within the at least one incline area (6, 7) cross one another such that winding of a cable onto the cable drum is enabled in a clockwise direction and a counterclockwise direction.
3 more elements
Dependencies are inferred from the claim text.