Braking system for a cable roller

摘要

The invention relates to a cable drum for automatically winding up a cable having an inner drum part (2), an outer drum part (1) and a back panel (3). The inner drum part (2) is connected to a hollow cylindrical link (23), whose inner wall has at least one vaulting (24), wherein a brake lever (6) is mounted in a radially moveable manner to the back panel (3), having at least one slot hole (63), in which the axis (71) of a brake wheel (7) is guided, which protrudes into the link (23) and abuts on its inner wall, wherein the at least one slot hole (63) is positioned angularly in a way that the brake wheel (7) during rotation of the link (23) is pressed against the inner wall of the link in winding direction of the cable drum and wherein a locking element is arranged at the brake lever (6) downstream of the brake wheel (7) in winding direction of the cable drum, which interacts with at least one tuck bar arranged at the inner drum part (2) in a manner that it is only locked when passing the tuck bar in winding direction of the cable drum.

主权项

1. A cable drum for automatically winding up a cable, the cable drum having an inner drum part, an outer drum part and a back panel, wherein the inner drum part is connected to a hollow cylindrical link, wherein an inner wall of the hollow cylindrical link has at least one vaulting, wherein a brake lever is mounted in a radially moveable manner to the back panel and has at least one slot hole, wherein an axle of a brake wheel is guided in the at least one slot hole, wherein the brake wheel protrudes into the hollow cylindrical link and abuts on an inner wall of the hollow cylindrical link, wherein the at least one slot hole is positioned angularly in a way that the brake wheel during rotation of the hollow cylindrical link is pressed against the inner wall of the hollow cylindrical link in a winding direction of the cable drum, wherein a locking element is arranged at the brake lever downstream of the brake wheel in the winding direction of the cable drum, wherein the locking element interacts with at least one catch element arranged at the inner drum part in a manner that the locking element is only locked when passing the at least one catch element in the winding direction of the cable drum, wherein the locking element is formed by an edge arranged at the end of the brake lever, wherein the at least one catch element is formed by a wedge connected to an annular bar arranged concentrically to the hollow cylindrical link at the inner drum part, and wherein the edge has an end and is provided at the end with a terminal having an outer face facing the annular bar, the terminal being angularly shaped at the outer face facing the annular bar.