IP Library Granted Patent US 8,794,392
Granted Patent B2
US 8,794,392 · App. 12/278,210 · Granted Aug 5, 2014

Rappelling device

Inventor: Ulrich Kowatsch (Leonberg, DE)
Assignee: Spidescape Products, Inc.
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Quick Facts
Patent No.
US 8,794,392
App. No.
12/278,210
Granted
Aug 5, 2014
Kind
B2
Abstract

In a rappelling device ( 10 ) for braking a load guided on a cable which can be fixed to the rappelling device ( 10 ), the cable ( 14 ) is friction-guided over a distance ( 22 ) and the cable ( 14 ) which runs through the rappelling device ( 10 ) is guided over a brakable shaft ( 24 ). The cable ( 14 ) is pressed onto the brakable shaft ( 24 ) by means of a pre-definable pressing force ( 29 ). The braking elements for the brakable shaft ( 24 ) can be kept small in weight and design because an additional braking of the cable ( 14 ) takes place over the friction-guided distance in the rappelling device ( 10 ).

Claims (17)

1. A rappelling device for braking a load guided on a cable ( 14 ; 44 ; 84 ) which can be fixed to the rappelling device,

wherein the cable ( 14 ; 44 ; 84 ) runs through the rappelling device ( 10 ; 40 ; 80 ) in a friction-guided manner over a distance ( 22 ; 52 a , 52 b ; 82 a , 82 b ) defined by an arrangement of bolts and is guided over a single brakable shaft ( 24 ; 54 ; 94 ),

wherein said brakable shaft includes a gearless centrifugal brake having a plurality of weights, wherein said weights of said brake are directly connected to the brakable shaft,

wherein said brakable shaft has a small diameter that is configured to produce high rotational speeds during a braking process,

wherein the brakable shaft is braked via the centrifugal brake, and wherein the cable ( 14 ; 44 ; 84 ) is pressed directly and so strongly onto the brakable shaft ( 24 ; 54 ; 94 ) having the small diameter by means of a pre-definable pressing force ( 29 ; 49 ; 89 ) that the rotational speed of the brakable shaft determines the rappelling speed of a load affixed to the cable.

2. The rappelling device according to claim 1 , wherein the friction-guided distance ( 22 ; 52 a , 52 b ; 82 a , 82 b ) is embodied as a channel in the rappelling device ( 10 ; 40 ; 80 ) which has a smaller diameter than the cable ( 14 ; 44 ; 84 ) guided through the rappelling device ( 10 ; 40 ; 80 ) and/or that the cable ( 14 ; 44 ; 84 ) is multiply deflected from its gravity-guided direction by means of rollers and/or bolts ( 32 ; 102 ) and/or that the cable ( 14 ; 44 ; 84 ) is guided through a wound channel, in particular meander-shaped or coiled, by the rappelling device ( 10 ; 40 ; 80 ).

3. The rappelling device according to claim 2 , wherein the rollers and/or bolts ( 32 ; 102 ) have a roughened outer surface and/or a material layer as outer surface which has an increased coefficient of friction compared to the selected cable material.

4. The rappelling device according to claim 1 , characterised in that the brakable shaft ( 24 ; 54 ) has a disk ( 68 ) at one end which projects beyond the centrifugal brake and is encased by an elastic housing ( 70 ), preferably a housing made of plastic.

5. The rappelling device according to claim 4 , characterised in that the disk ( 68 ) has gripping recesses ( 72 ).

6. The rappelling device according to claim 1 , wherein the cable ( 14 ; 44 ; 84 ) is pressed onto the brakable shaft ( 24 ; 54 ; 94 ) by means of a spring-loaded roller ( 28 ; 58 ; 98 ).

7. The rappelling device according to claim 1 , characterised in that the braking device ( 10 ; 40 ) has a cable reservoir ( 43 ).

8. The rappelling device according to claim 1 , wherein the brakable shaft ( 24 ; 54 ) is provided in the area of the cable entry into the rappelling device ( 10 ; 40 ) and that the friction-guided distance ( 22 ; 52 a ; 52 b ) is adjacent thereto.

9. The rappelling device according to claim 1 , wherein the cable ( 14 ; 44 ; 84 ) is a plastic cable, a steel cable, a fiber composite cable with and without carbon fibers or a cable ( 14 ; 44 ; 84 ) comprising other metal and/or fiber composite materials.

10. The rappelling device according to claim 1 , characterised in that the rappelling device ( 80 ) can be used in swinging mode.

11. The rappelling device according to claim 1 , characterised in that the rappelling device ( 10 ; 40 ; 80 ) comprises a braking device, in particular a hand wheel ( 85 ) for completely stopping the brakable shaft ( 24 ; 54 ; 94 ).

12. The rappelling device according to claim 1 , wherein that a crank handle is provided on the brakable shaft ( 24 ; 54 ; 94 ) via which the brakable shaft ( 24 ; 54 ; 94 ) can be driven.

13. The rappelling device according to claim 1 , wherein the brakable shaft ( 24 ; 54 ; 94 ) builds up the desired braking force depending on weight over a time interval.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 16, 2016
From: DEUS RESCUE, INC.
To: SKYLOTEC GMBH
Reel/Frame 039455/0455 →
CHANGE OF NAME Recorded Aug 13, 2014
From: SPIDESCAPE PRODUCTS, INC.
To: DEUS RESCUE, INC.
Reel/Frame 033531/0970 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2013
From: SUCO ROBERT SCHEUFFELE GMBH & CO. KG
To: SPIDESCAPE PRODUCTS, INC.
Reel/Frame 029884/0871 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 4, 2008
From: KOWATSCH, ULRICH
To: SUCO ROBERT SCHEUFFELE GMBH & CO. KG
Reel/Frame 021335/0666 →
Priority Claims (1)
DE 10 2006 009 332 · Mar 1, 2006 · national
Continuity (1)
Related Publication 20090020373A1 · Jan 22, 2009