Force transmission unit
View Patent ↗A force transmission unit that has a rope, particularly a wire rope, and a device for introducing a force into the rope, that includes a sleeve enclosing the rope and connected to the rope under deformation. The force transmission unit has a connecting member which is arranged between the sleeve and the rope and formed from a material that has a lower strength than the materials from which the sleeve and the outer strands of the rope are formed and which preferably has a hollow cylindrical shape.
1. A force transmission unit, comprising: a rope; and a device for introducing a force into the rope, the device comprising a sleeve that surrounds an end region of the rope and is connected to the rope by deformation, and a connecting member arranged between the sleeve and the rope, the connecting member being of a material of lower strength than that of materials out of which the sleeve and outer surface of the rope are made, wherein the sleeve has an increased wall thickness at an end at which the connecting member is inserted into the sleeve, the increased wall thickness being formed by a projection on an outer side of the sleeve, and grips the connecting member.
2. The force transmission unit according to claim 1 , wherein the sleeve completely jackets the connecting member.
3. The force transmission unit according to claim 1 , wherein, at least at one end, an inside surface of the sleeve surrounding the rope rests against the rope.
4. The force transmission unit according to claim 1 , wherein, only in an end section of the force-introducing device, the connecting member has a wall thickness that decreases toward one end of the force-introducing device, and the sleeve has a wall thickness that increases toward the one end to compensate for the decreasing wall thickness of the connecting member.
5. An assembly for producing a force introducing device for a rope, comprising: a sleeve configured to surround an end region of the rope and which is connectable to the rope by deformation; and a connecting member that is placeable on the rope and into the sleeve, the connecting member being of a material of lower strength than that of materials out of which the sleeve and an outside surface of the rope are made, wherein the sleeve has, at an end in which the connecting member is insertable, an increased wall thickness, before deformation, formed by a projection on an outer side of the sleeve.
6. The assembly according to claim 5 , wherein the sleeve and/or the connecting member comprises a hollow cylindrical shape, wherein the sleeve comprises a shape such that, after deformation, the sleeve completely jackets and grips an outside of the connecting member.
7. The assembly according to claim 5 , wherein the connecting member has a reduced wall thickness at at least one end.
8. The assembly according to claim 5 , wherein a bevel is formed on an outside surface and/or an inside surface of the connecting member at one end.
9. The assembly according to claim 5 , wherein a collar is formed at the at least one end of the sleeve.
10. The assembly according to claim 5 , wherein the sleeve and the connecting member are adapted to each other with respect to shapes so that, after deformation, an inside surface of the sleeve rests against the rope at least at one end.
11. The assembly according to claim 10 , wherein the sleeve and the connecting member are adapted to each other with respect to wall thickness, size, and length.
12. A method for producing a force transmission unit, comprising the steps of: providing a rope, and a device for introducing forces into the rope; mounting a sleeve of the force introducing device on an end region of the rope so that the sleeve surrounds the rope; arranging a connecting member of the force introducing device between the sleeve and the rope, which member is made of material of lower strength than that of materials out of which the sleeve and outer strands of the rope are made; and deforming the sleeve to connect the sleeve and connecting member to the rope, wherein the sleeve as an increased wall thickness at an end at which the connecting member is inserted, the increased wall thickness being formed by a projection on an outer side of the sleeve, the sleeve being deformed more at the end with the increased wall thickness than in a remainder of the sleeve so that after deformation the sleeve grips the connecting member.
13. The method according to claim 12 , wherein the sleeve, the connecting member, and the rope are connected to each other so that a wall thickness of the connecting member decreases toward one end of the force-introducing device formed by the connecting member and the sleeve, and a wall thickness of the sleeve increases toward the one end.
14. The method according to claim 12 , including mounting the sleeve on the connecting member and the rope so that an inside surface of the sleeve surrounding the rope rests on the rope.
15. The method according to claim 12 , including mounting the sleeve on the connecting member and the rope so that the sleeve completely jackets the connecting member.
16. The method according to claim 12 , wherein the sleeve and/or the connecting member is pressed, hammered, and/or rolled onto the rope.