# US 2006/0231345 A1 · Elevator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2006/0231345 A1 - Document ID: US20060231345A1 - Status: Published application - Kind: A1 - Application number: 11/097,181 - Filed: 2005-04-04 - Published: 2006-10-19 - Earliest claimed: 2002-11-04 - Assignees: Kone Corporation - Inventors: Jorma Mustalahti; Esko Aulanko - Web page: https://patentgrep.com/patent/US20060231345A1 ## CPC - B66B 7/10: for equalising rope or cable tension - B66B 19/007: {method for modernisation of elevators} - B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00) ## Abstract An elevator, preferably an elevator without machine room, in which the hoisting machine (10) engages the hoisting ropes (3) by means of a traction sheave (11), the elevator car (1) being at least partially supported by the hoisting ropes serving as a means of moving the elevator car (1). The elevator car is suspended on the hoisting ropes (3) by means of at least one diverting pulley (13,14) from whose rim the hoisting ropes go upwards from both sides and at least one diverting pulley (7,5) from whose rim the hoisting ropes go downwards from both sides of the diverting pulley. The traction sheave (11) engages the rope portion between these diverting pulleys (13,5). ## Claims ### Claim 1 Elevator, preferably an elevator without machine room, in which elevator a hoisting machine engages a set of hoisting ropes by means of a traction sheave, an elevator car being at least partially supported by said hoisting ropes, which serve as a means of moving the elevator car, wherein the elevator car is suspended on the hoisting ropes by means of at least one diverting pulley from whose rim the hoisting ropes go upwards from both sides and at least one diverting pulley from whose rim the hoisting ropes go downwards from both sides of the diverting pulley, and in which the traction sheave engages the rope portion between these diverting pulleys. ### Claim 2 (depends on 1) Elevator according to claim 1, wherein one end of the hoisting ropes is fastened substantially immovably with respect to the elevator car so as to be movable with the elevator car. ### Claim 3 (depends on 1) Elevator according to claim 1, wherein at least one end of the hoisting ropes is fastened substantially immovably with respect to the elevator shaft. ### Claim 4 (depends on 1) Elevator according to claim 1, wherein it comprises at least two diverting pulleys from which the hoisting ropes go upwards and at least two diverting pulleys from which the hoisting ropes go downwards. ### Claim 5 (depends on 4) Elevator according to claim 4, wherein both the number of diverting pulleys from which the hoisting ropes go upwards and the number of diverting pulleys from which the hoisting ropes go downwards is 3, 4 or 5. ### Claim 6 (depends on 1) Elevator according to any claim 1, wherein both ends of the hoisting ropes are fastened substantially immovably with respect to the elevator shaft e.g. by means of a spring. ### Claim 7 (depends on 1) Elevator according to claim 1, wherein both ends of the hoisting ropes are fastened substantially immovably with respect to the elevator car e.g. by means of a spring so as to be movable with the elevator car. ### Claim 8 (depends on 1) Elevator according to claim 1, wherein the continuous angle of contact between the traction sheave and the hoisting ropes is at least 180°. ### Claim 9 (depends on 1) Elevator according to claim 1, wherein the continuous angle of contact between the traction sheave and the hoisting ropes is greater than 180°. ### Claim 10 (depends on 1) Elevator according to claim 1, wherein the roping used between the traction sheave and a rope sheave serving as a diverting pulley is ESW roping. ### Claim 11 (depends on 1) Elevator according to claim 1, wherein the roping used between the traction sheave and a rope sheave serving as a diverting pulley is DW roping. ### Claim 12 (depends on 1) Elevator according to claim 1, wherein the roping used between the traction sheave and a rope sheave serving as a diverting pulley is XW roping. ### Claim 13 (depends on 1) Elevator according to claim 1, wherein the hoisting ropes used are high-strength hoisting ropes. ### Claim 14 (depends on 1) Elevator according to claim 1, wherein the strength of the steel wires of the hoisting ropes is greater than about 2300 N/mm2 and less than about 2700 N/mm2. ### Claim 15 (depends on 1) Elevator according to claim 1, wherein the cross-sectional area of the steel wires of the hoisting ropes larger than about 0.015 mm and smaller than about 0.2 mm2, and that the strength of the steel wires of the hoisting ropes is greater than about 2000 N/mm2. ### Claim 16 (depends on 1) Elevator according to claim 1, wherein the diameters of the hoisting ropes are smaller than 8 mm, preferably between 3-5 mm. ### Claim 17 (depends on 1) Elevator according to any claim 1, wherein the hoisting machine is particularly light in relation to the load. ### Claim 18 (depends on 1) Elevator according to claim 1, wherein the traction sheave is coated with polyurethane, rubber or some other frictional material appropriate to the purpose. ### Claim 19 (depends on 1) Elevator according to claim 1, wherein the traction sheave is made of cast iron at least in the area of the rope grooves, and the rope grooves are preferably undercut.