# US 7,607,204 B2 · Belt end connection for fastening the end of a supporting belt in an elevator system and method for fastening the end of a supporting belt in an elevator system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,607,204 B2 - Document ID: US7607204B2 - Status: Granted - Kind: B2 - Application number: 11/662,672 - Filed: 2005-09-07 - Published: 2008-11-20 - Granted: 2009-10-27 - Earliest claimed: 2004-09-13 - Assignees: Inventio AG - Inventors: Ernst Ach - Web page: https://patentgrep.com/patent/US7607204B2 ## CPC - B66B 7/085: {Belt termination devices} - F16G 11/046: {by bending the cable around a surface} - Y10T 24/3969: Sliding part or wedge - 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) - F16G: BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A belt end connection and method for fastening a belt end in an elevator installation includes a housing having a wedge pocket for holding the support belt end and a wedge. At least one wedge pocket surface facing the wedge is provided with a roughness that is different from a roughness of another surface of the wedge pocket. Advantageously, a wedge pocket adhesion surface lying closer to a loose run of the support belt is provided with a roughness greater than the roughness of the another surface, or a wedge pocket slide surface lying closer to a supporting run of the support belt is provided with a roughness less than the roughness of the another surface. ## Claims ### Claim 1 A belt end connection for fastening an end of a support belt in an elevator installation, wherein the support belt is held in a wedge pocket by a wedge, comprising: a wedge housing having a wedge pocket formed therein including at least one wedge pocket surface facing a wedge inserted in said wedge pocket, said at least one wedge pocket surface having a first surface roughness which is different from a second surface roughness of another surface of said wedge pocket. ### Claim 2 (depends on 1) The belt end connection according to claim 1 wherein said at least one wedge pocket surface is a wedge pocket adhesion surface lying closer to a loose run of a support belt inserted in said wedge pocket, said wedge pocket adhesion surface having the first surface roughness being greater than the second surface roughness said another surface of said wedge pocket. ### Claim 3 (depends on 2) The belt end connection according to claim 2 wherein the first surface roughness has a mean roughness Ra of more than 25 μm. ### Claim 4 (depends on 2) The belt end connection according to claim 2 wherein said wedge pocket adhesion surface is shaped in correspondence with a contour of the support belt. ### Claim 5 (depends on 1) The belt end connection according to claim 1 wherein said at least one wedge pocket surface is a wedge pocket slide surface lying closer to a supporting run of a support belt inserted in said wedge pocket, said wedge pocket slide surface having the first surface roughness being less than the second surface roughness said another surface of said wedge pocket. ### Claim 6 (depends on 5) The belt end connection according to claim 5 wherein the first surface roughness has a mean roughness Ra of less than 20 μm. ### Claim 7 (depends on 1) The belt end connection according to claim 1 wherein said at least one wedge pocket surface is a wedge pocket adhesion surface lying closer to a loose run of a support belt inserted in said wedge pocket, said wedge pocket adhesion surface having the first surface roughness being greater than the second surface roughness said another surface of said wedge pocket, said wedge pocket having a wedge pocket slide surface lying closer to a supporting run of a support belt inserted in said wedge pocket, said wedge pocket slide surface having the third surface roughness being less than the second surface roughness said another surface of said wedge pocket, and a difference between a mean roughness of said wedge pocket adhesion surface a mean roughness of said wedge pocket slide surface is at least 10 μm. ### Claim 8 (depends on 1) The belt end connection according to claim 1 wherein said wedge has one of a substantially smooth surface, a part of a surface of said wedge in contact with said support belt is shaped in correspondence with a contour of said support belt, and a part of a surface of said wedge in contact with said support belt is shaped to be transversely grooved or longitudinally grooved. ### Claim 9 (depends on 1) The belt end connection according to claim 1 wherein said wedge is formed of an aluminum material. ### Claim 10 (depends on 1) The belt end connection according to claim 1 wherein said at least one wedge pocket surface is formed by an insert plate in said housing. ### Claim 11 (depends on 1) The belt end connection according to claim 1 including a support belt having at least two cables or cable strands are arranged at a spacing from one another and a casing which separates the individual cables or cable strands from one another and encloses them, said cable casing being formed of a thermoplastic material or an elastomer and wherein a width of said support belt is at least twice a height of said support belt. ### Claim 12 A method for fastening an end of a support belt in an elevator installation, wherein the support belt is held in a wedge pocket of a wedge housing by a wedge, comprising the steps of: a. providing a housing having a wedge pocket for receiving an end of a support belt and a wedge; and b. forming at least one wedge pocket surface in the wedge pocket facing the wedge for engaging the support belt end, the at least one wedge pocket surface having a first surface roughness which is different from a second surface roughness of another surface of the wedge pocket.