1. A rope clamp for clamping one or more ropes comprising:
a first clamping member having a first clamping face for being set against one or more ropes to be clamped;
a second clamping member having a second clamping face for being set against one or more ropes to be clamped;
said clamping faces defining between them a gap for receiving one or more ropes, the clamping members being relatively movable towards each other such that the gap is narrowed for clamping one or more ropes between the clamping faces thereof; and
a device configured to move the clamping members towards each other such that the gap is narrowed,
wherein the first clamping member andor the second clamping member comprises:
a metallic face part forming the clamping face of the clamping member in question;
a metallic body part on the back side of the face part; and
an elastic intermediate part made of elastic material between the body part and the face part for elastically transmitting force between the body part and the face part.
2. The rope clamp according to claim 1, wherein the elastic intermediate part is made of elastomer.
3. The rope clamp according to claim 1, wherein the elastic intermediate part is made of material having 65-75 Shore A hardness.
4. The rope clamp according to claim 1, wherein the face part comprises aluminum.
5. The rope clamp according to claim 1, wherein the metallic face part is sheet like part is in the form of a sheet.
6. The rope clamp according to claim 1, wherein the elastic intermediate part is in the form of a sheet.
7. The rope clamp according to claim 1, wherein said metallic face part of the first clamping member andor the second clamping member forms the clamping face of the clamping member in question for several ropes.
8. The rope clamp according to claim 1, wherein the ropes are ropes in the form of a belt, and said clamping face(s) of the first clamping member andor second clamping member isare suitable for being set against the wide side of the one or more ropes to be clamped.
9. The rope clamp according to claim 1, wherein the metallic face part, the elastic intermediate part and the metallic body part are stacked against each other, and together form a three-layered structure.
10. The rope clamp according to claim 1, wherein the device configured to move the clamping members towards each other is arranged to act on the body part(s) of the first andor the second clamping member.
11. The rope clamp according to claim 1, wherein the body part is made of metal harder than the material of the metallic face part.
12. The rope clamp according to claim 1, the rope clamp comprises one or more metallic blocking members for blocking the clamping members from moving towards each other beyond a certain limit distance.
13. An elevator arrangement, comprising:
an elevator car; and
one or more suspension ropes for suspending the elevator car,
wherein said one or more suspension ropes are connected to the elevator car, and a rope clamp is arranged to clamp said one or more suspension ropes, and the rope clamp is as defined in claim 1.
14. The elevator arrangement according to claim 13, wherein each of said one or more ropes comprises one or more continuous load bearing members extending in a longitudinal direction of the rope throughout the length of the rope, which load bearing member(s) isare made of composite material comprising reinforcing fibers embedded in polymer matrix.
15. The elevator arrangement according to claim 13, wherein the rope comprises one or more continuous load bearing members extending in a longitudinal direction of the rope throughout the length of the rope, which load bearing member(s) isare embedded in elastic coating forming the surface of the rope.
16. The elevator arrangement according to claim 13, wherein the rope clamp is arranged to fix said one or more ropes immovably to a structure of the elevator car or a stationary part of the building in which the elevator is installed.
17. The elevator arrangement according to claim 13, wherein the arrangement is an arrangement for releasing a safety gear from a wedged state, comprising a pulling device connected to the rope clamp clamping said one or more suspension ropes for suspending the elevator car, and arranged to pull the elevator car upwards by pulling the rope clamp clamping said one or more suspension ropes for suspending the elevator car such that the elevator car rises.
18. The rope clamp according to claim 2, wherein the elastomer is neoprene.
19. The rope clamp according to claim 3, wherein the Shore A hardness is 70.
20. The rope clamp according to claim 11, wherein the body part is made of steel and the a metallic face part is made of aluminium.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-15. (canceled)
16. A vegetation cutting tool comprising a cutting head, a motor and transmission drivable by the motor;
wherein the cutting head comprises first and second cutter members having respective cutting surfaces, wherein the first cutter member is pivotably mounted with respect to the second cutter member;
wherein at least the first cutter member is drivable by the transmission between a first angular position with respect to the second cutter member, in which a space is formed between the respective cutting surfaces, and a second angular position with respect to the second cutter member, in which the space between the respective cutting surfaces is closed; and wherein the transmission comprises an engagement element associated with the first cutter member, and a crank drivable between defined first and second angular crank positions corresponding to the first and second angular positions, in which the crank is operatively coupled to the engagement element by a link.
17. A vegetation cutting tool as claimed in claim 16, wherein the transmission further comprises a reduction gear assembly, including an output bearing, which is drivable by the motor, and in which the crank is drivable by the gear assembly.
18. A vegetation cutting tool as claimed in claim 16, wherein the engagement element comprises a tab formed on the first cutter member.
19. A vegetation cutting tool as claimed in claim 17, wherein the engagement element comprises a tab formed on the first cutter member.
20. A vegetation cutting tool as claimed in claim 18, wherein the link comprises a slot which is operatively engageable with the tab.
21. A vegetation cutting tool as claimed in claim 19, wherein the link comprises a slot which is operatively engageable with the tab.
22. A vegetation cutting tool as claimed in claim 16, further comprising a user-control for non-continuous activation of the motor, wherein the user-control is moveable between first and second positions to effect movement of the first cutter member between the first and second angular positions, and wherein release of the user-control, in use, causes the first cutter member to move to the first angular position.
23. A vegetation cutting tool as claimed in claim 17, wherein the crank is operatively connected to the link such that the connection is substantially in-line with the gear assembly output bearing.
24. A vegetation cutting tool as claimed in claim 18, wherein the crank is operatively connected to the link such that the connection is substantially in-line with the gear assembly output bearing.
25. A vegetation cutting tool as claimed in claim 20, wherein the crank is operatively connected to the link such that the connection is substantially in-line with the gear assembly output bearing.
26. A vegetation cutting tool as claimed in claim 16, wherein the vegetation cutting tool further comprises one or more limit switches and wherein at least one limit switch breaks supply of power to the motor when the at least one of the cutter members has moved from the first angular position to the second angular position.
27. A vegetation cutting tool as claimed in claim 16, further comprising two limit switches, each associated with a relay to make or break motor electrical connections, wherein the relays are a single twin relay.
28. A vegetation cutting tool as claimed in claim 17, wherein the reduction gear assembly is an epicyclic reduction gear assembly mounted coaxially to the motor.
29. A vegetation cutting tool as claimed in claim 25, wherein the reduction gear assembly is an epicyclic reduction gear assembly mounted coaxially to the motor.
30. A vegetation cutting tool as claimed in claim 16, wherein the first cutter member is demountable by means of disengagement of the engagement element from the link.
31. A vegetation cutting tool as claimed in claim 30, wherein the link is retained in position when the first cutter member is removed.
32. A vegetation cutting tool as claimed in claim 31, wherein the cutting head comprises a linkage mounting moulding, and the link is moveable within a channel provided in the linkage mounting moulding, to retain its position relatively with the linkage mounting moulding.
33. A vegetation cutting tool as claimed in claim 32, wherein the link further comprises an integral link tab, formed therewith, and the link tab is moveable within the channel in the linkage mounting moulding.
34. A vegetation cutting tool as claimed in claim 16, wherein the link comprises a link aperture at an operatively upper end which is rotatably engaged with the crank to provide a mechanical engagement between the link and crank.
35. A vegetation cutting tool as claimed in claim 16, wherein the cutting head and transmission means comprises a single working unit.