DE202009002805U1 - Device for guiding cables between mutually rotating hollow cylinders - Google Patents

Abstract

Device for guiding cables between mutually limited rotating hollow cylinders, characterized in that on the cylinder ends (2) wound in the same direction cable (1) via deflection rollers (3) is guided, which can rotate relative to the cylinder ends (2) and also rotating Mitnehmerscheiben ( 4) are driven.

Description

The The invention relates to a device which has a continuous Cable leads to the transport of energy, information or substances, that it is on two mutually limited axially rotating hollow cylinder is safely wound while keeping the central passage for recording of axles, shafts, media tubes, supply cables or others remains open.

Technical solutions are already known (59.149276 JP), in which the cable is mounted on an elastic coil spring and can be rotated with the axial end of the spring, or ( DE 4004233 ), wherein a helically wound cable wound between two end positions and is unwound. Another solution ( DE 19547959 ) winds the cable spirally between a radially outer and inner storage space by means of various guide devices. Disadvantages of these solutions, in addition to the different restoring moments depending on the rotational speed of the high cost of components for guides. Another solution ( DE 4026782 ) uses a helical carrier body with a turning point, in which the cable is embedded cohesively and thus out. However, all solutions are not suitable if the winding diameter is large and a central opening is necessary.

The The object of the invention is to limit a cable to two rotating large hollow cylinder with maximum, in the center Wind free passage and thereby lead safely.

According to the invention the object is achieved in that the cable ( 1 ) on the two hollow cylinders ( 2 ) is wound in one or more layers in the same direction and for deflection via one or more pulleys ( 3 ), which between the hollow cylinders ( 2 ) are arranged so that they can rotate freely. At the hollow cylinders ( 2 ) are each rotating Mitnehmerscheiben ( 4 ) mounted so that by a from a pressing device ( 5 ) resulting contact pressure over friction linings ( 6 ) when rotated relative to the hollow cylinders ( 2 ) Constant rotational or slip moments arise. The pressing device may for example consist of elastic spring elements or permanent magnets. Furthermore, between the drive plates ( 4 ) and the pulleys ( 3 ) each a locking ( 7 ), that only one direction of rotation of the pulleys ( 3 ) opposite the drive plate ( 4 ) and in the opposite direction the driver disks ( 4 ) over the friction lining ( 6 ) the pulleys ( 3 ), then turn the cable ( 1 ) permanently tension and wind.

The following embodiment explains the invention with reference to FIG 1 ,

A cable ( 1 ), for example, a fiber optic optical fiber, is on the one hollow cylinder end ( 2 ), then over the pulleys ( 3 ) and on the other hollow cylinder end ( 2 ) again wrapped in the same winding direction. Now rotate the pulleys ( 3 ) around the axis, the cable ( 1 ) either on both hollow cylinders ( 2 ) wound up or unwound. The liberated or required winding length can by rotation of one of the two hollow cylinder ( 2 ) are balanced with respect to the other, whereby the limited axial rotation of the hollow cylinder ( 2 ) arises against each other.

The tension of the cable ( 1 ) is achieved by the pulleys ( 3 ) via a locking mechanism ( 7 ), which consists for example of a spring and a Sägezahnverzahnung, with the drive plates ( 4 ) are connected. The driver disks ( 4 ) are rotatable relative to the hollow cylinders ( 2 ) and obtained by the pressing device ( 5 ) via friction linings ( 6 ) a constant torque or slip torque. This allows the different winding diameters of the cable ( 1 ) on the hollow cylinders ( 2 ) resulting variable rotational speeds of pulleys ( 3 ) and hollow cylinders ( 2 ) and a constant cable tension can be achieved.

1

electric wire

2

hollow cylinder

3

guide rollers

4

driver disc

5

pressing device (Permanent magnet)

6

friction lining

7

ratchet

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 4004233 [0002]
• - DE 19547959 [0002]
• - DE 4026782 [0002]

Claims (5)

Device for guiding cables between mutually limited rotating hollow cylinders, characterized in that on the cylinder ends ( 2 ) coiled cable ( 1 ) via pulleys ( 3 ), which are opposite the cylinder ends ( 2 ) and also via rotating drive disks ( 4 ) are driven. Device for guiding cables between mutually limited rotating hollow cylinders, characterized in that the drive plates ( 4 ) with the pulleys ( 3 ) via a locking mechanism ( 7 ) are connected, which only allows a twisting direction between the two. Device for guiding cables between mutually limited rotating hollow cylinders, characterized in that the drive plates ( 4 ) with the hollow cylinders ( 2 ) via a friction lining ( 6 ) and a pressing device ( 5 ) connected via the friction lining ( 6 ) generates a constant contact force and thus ensures a constant rotational or slip torque for cable tension and winding. Device for guiding cables between mutually limited rotating hollow cylinders, characterized in that the pressing device ( 5 ) consists of a certain number of permanent magnets or elastic spring elements, on the number of the contact pressure can be adjusted. Device for guiding cables between mutually limited rotating hollow cylinders characterized in that the necessary components for guiding and winding the cable components such as pulleys ( 3 ), Mitnehmerscheiben ( 4 ) and pressing device ( 5 ) so around the hollow cylinder ( 2 ) are arranged, that the interior of the hollow cylinder ( 2 ) remains free to receive and feed axles, shafts, media tubes, supply cables and other components.