Cable clamp, and lift system having a cable clamp

Patent metadata

Field	Value
Publication number	US-2016200550-A1
Application number	US-201314649023-A
Country	US
Kind code	A1
Filing date	Nov 27, 2013
Priority date	Dec 4, 2012
Publication date	Jul 14, 2016
Grant date	—

Abstract

The invention relates to a cable clamp for a cable of a lift system, having a supporting device which has a wedge receptacle with a first supporting surface and a second supporting surface which is arranged at an angle from the first supporting surface, and having a wedge-shaped clamping device which can be moved to and fro in the wedge receptacle between a clamped position and a released position and has a first clamping surface which lies opposite the first supporting surface and a second clamping surface which lies opposite the second supporting surface, wherein the two clamping surfaces are oriented obliquely with respect to one another. In order to develop the cable clamp in such a way that it makes repeated clamping and releasing of the cable possible with a compact design, without the mechanical load-bearing capability of the cable being impaired appreciably as a result, it is proposed according to the invention that the cable clamp comprises a deflection device and a first clamping region which is arranged between the first clamping surface and the first supporting surface and a second clamping region which is arranged between the second clamping surface and the second supporting surface, wherein the cable to be clamped can be guided through the two clamping regions and can be deflected by mean of the deflecting device from the first clamping region to the second clamping region.

First claim

1 . A cable clamp for a cable of an elevator system ( 10 ), in particular for a support cable ( 21 ) of an elevator system ( 10 ) which is installed in a shaft ( 12 ) of a building under construction, having a bearing unit ( 34 ) which has a wedge mount ( 40 ), having a first bearing face ( 45 ) and a second bearing face ( 46 ) which is disposed at an angle to the first bearing face ( 45 ), and having a wedge-shaped clamping unit ( 43 ) which is movable to-and-fro in the wedge mount ( 41 ) between a clamping position and a releasing position and which has a first clamping face ( 48 ) which is opposite the first bearing face ( 45 ) and a second clamping face ( 49 ) which is opposite the second bearing face ( 46 ), wherein the two clamping faces ( 48 , 49 ) are obliquely oriented in relation to one another, characterized in that the cable clamp ( 28 ) comprises a deflection unit ( 54 ) and a first clamping region ( 59 ), which is disposed between the first clamping face ( 48 ) and the first bearing face ( 45 ), and a second clamping region ( 60 ) which is disposed between the second clamping face ( 49 ) and the second bearing face ( 46 ), wherein the cable to be clamped is guidable between the two clamping regions ( 59 , 60 ) and by means of the deflection unit ( 54 ) is deflectable from the first clamping region ( 59 ) to the second clamping region ( 60 ).

2 . The cable clamp as claimed in claim 1 , characterized in that the two clamping regions ( 59 , 60 ) in the use position of the cable clamp are disposed at the same height in relation to the vertical.

3 . The cable clamp as claimed in claim 1 or 2 , characterized in that the clamping unit has a clamping wedge ( 43 ).

4 . The cable clamp as claimed in claim 1 , 2 , or 3 , characterized in that the deflection unit ( 54 ) is held on the clamping unit ( 43 ).

5 . The cable clamp as claimed in one of the preceding claims, characterized in that the deflection unit ( 54 ) has a rotatably mounted deflection roller ( 55 ).

6 . The cable clamp as claimed in claim 5 , characterized in that the diameter of the deflection roller ( 55 ) is at least as large as the spacing between the ends of the two clamping regions ( 59 , 60 ) which face the deflection roller.

7 . The cable clamp as claimed in one of the preceding claims, characterized in that the two bearing faces ( 45 , 46 ) and the two clamping faces ( 48 , 49 ) have flute-shaped depressions ( 74 , 75 ) which are placeable against the cable surface.

8 . The cable clamp as claimed in claim 7 , characterized in that the depressions ( 74 , 75 ) are placeable in a form-fitting manner against the cable surface.

9 . The cable clamp as claimed in one of the preceding claims, characterized in that for loosening the cable clamping action, the cable clamp ( 28 ) has a manually, electrically, pneumatically, or hydraulically actuatable releasing unit.

10 . The cable clamp as claimed in claim 9 , characterized in that the releasing unit has a piston-and-cylinder assembly ( 72 ) which is impingeable by a pressure means.

11 . The cable clamp as claimed in one of the preceding claims, characterized in that the bearing unit ( 34 ) has two bearing arms ( 35 , 36 ) which are rigidly interconnected by way of two connection members ( 37 , 38 ) and in each case define one bearing face ( 45 , 46 ), and that the clamping unit has a clamping wedge ( 43 ) which is disposed between the two bearing arms ( 35 , 36 ) and the two connection members ( 37 , 38 ) and which comprises two clamping faces ( 48 , 49 ) which in each case face one bearing face ( 45 , 46 ).

12 . An elevator system having a drive unit ( 18 ) which by way of a support cable ( 21 ) is linked to a car ( 23 ) which is upwardly and downwardly displaceable in a vertical shaft ( 12 ), and having a cable drum ( 30 ) onto which an end portion of the support cable ( 21 ) is wound, and having a cable clamp ( 28 ) as claimed in one of the preceding claims.

13 . The elevator system as claimed in claim 12 , characterized in that the cable drum ( 30 ) is disposed in a storage region within or outside the shaft ( 12 ).

14 . The elevator system as claimed in claim 12 or 13 , characterized in that the drive unit ( 18 ) and the cable clamp ( 28 ) are disposed in a machine room ( 14 ) of the elevator system ( 10 ) which is temporarily fixed in the shaft ( 12 ).

15 . The elevator system as claimed in claim 12 , 13 , or 14 , characterized in that the support cable ( 21 ) is guided via at least one deflection element ( 62 , 63 ) to a clamping region ( 60 ) of the cable clamp ( 28 ).

Assignees

• Thyssenkrupp Elevator Ag

Inventors

• Reuter Günter
• Schiffner Gerhard
• Schöllkopf Karl-Otto
• Wilts Herrmann

Classifications

• B66B5/185

  by acting on main ropes or main cables · CPC title

• B66B9/00

  Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12) · CPC title

• B66B19/00 Primary

  Mining-hoist operation · CPC title

• B66B7/08 Primary

  for connection to the cars or cages, e.g. couplings · CPC title

• B66B19/02

  Installing or exchanging ropes or cables · CPC title