# US 6,296,587 B1 · Seamed endless belt > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,296,587 B1 - Document ID: US6296587B1 - Status: Granted - Kind: B1 - Application number: 09/434,460 - Filed: 1999-11-05 - Granted: 2001-10-02 - Earliest claimed: 1998-11-10 - Assignees: Fuji Xerox Co., Ltd. - Inventors: Akira Tateishi; Seiichi Katoh; Ayumu Kawashima - Web page: https://patentgrep.com/patent/US6296587B1 ## CPC - G03G 15/754: {relating to band, e.g. tensioning (G03G15/757 takes precedence)} - B29C 65/483: {Reactive adhesives, e.g. chemically curing adhesives} - B29C 65/5042: {covering both elements to be joined} - B29C 65/56: using mechanical means {or mechanical connections, e.g. form-fits} - B29C 66/1142: {Single butt to butt joints} - B29C 66/2272: {Teardrop-like, waterdrop-like or mushroom-like interlocking undercuts (tongue and groove joints or tenon and mortise joints comprising teardrop-like, waterdrop-like or mushroom-like interlocking undercuts B29C66/12421)} - B29C 66/2274: {Dovetailed interlocking undercuts (tongue and groove joints or tenon and mortise joints comprising dovetailed interlocking undercuts B29C66/12423)} - B29C 66/2276: {Other specific local geometries of interlocking undercuts not provided for in B29C66/2272 - B29C66/2274 (tongue and groove joints or tenon and mortise joints comprising other specific interlocking undercuts B29C66/12425)} - B29C 66/30321: {making use of protrusions belonging to at least one of the parts to be joined} - B29C 66/30325: {making use of cavities belonging to at least one of the parts to be joined} - B29C 66/4322: {by joining a single sheet to itself (B29C66/4332 takes precedence)} - B29C 66/4324: {for making closed loops, e.g. belts} - F16G 3/00: Belt fastenings, e.g. for conveyor belts (for V-belts F16G7/00) - F16G 3/10: Joining belts by sewing, sticking, vulcanising, or the like; Constructional adaptations of the belt ends for this purpose - G03G 15/162: {details of the the intermediate support, e.g. chemical composition} - B29C 65/1403: {characterised by the type of electromagnetic or particle radiation (B29C65/1603 takes precedence)} - B29C 65/1406: {Ultraviolet [UV] radiation} - B29C 65/1425: {Microwave radiation} - B29C 65/4835: {Heat curing adhesives} - B29C 65/4845: {Radiation curing adhesives, e.g. UV light curing adhesives} - B29C 65/5007: {characterised by the structure of said adhesive tape, threads or the like} - B29C 65/526: {by printing or by transfer from the surfaces of elements carrying the adhesive, e.g. using brushes, pads, rollers, stencils or silk screens} - B29C 66/71: {characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125)} - B29C 66/7392: {characterised by the material of at least one of the parts being a thermoplastic} - B29C 66/7394: {characterised by the material of at least one of the parts being a thermoset} - B29L 2031/709: {Articles shaped in a closed loop, e.g. conveyor belts} - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - F16G: BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES ## Abstract Disclosed herein is a flexible seamed endless belt having high strength and good smoothness, in which the seamed portion is as thick as the other part of the belt. The seamed endless belt is formed from a flexible belt-like member by joining its ends together. The belt-link member has end structures which can be engaged with each other such that the resulting seamed portion is unseparable in the advancing direction thereof. The seamed portion is covered with a cured film formed by curing a resin composition containing a curable resin. The curable resin may be a thermosetting resin and the cured film may be formed by heating the resin composition. ## Claims ### Claim 1 A seamed endless flexible belt having a tensile modulus of elasticity Tb, comprising: engaging structures at both ends of the belt, which are unseparable in an advancing direction of the belt when the structures are engaged with each other; a seamed portion formed by the engaging structures being engaged with each other; and a reinforcing film which covers the seamed portion and has a tensile modulus of elasticity Ta satisfying Tb>2Ta. ### Claim 2 (depends on 1) The seamed endless flexible belt as recited in claim 1 wherein the reinforcing film is a cured film made of a resin composition containing a curable resin. ### Claim 3 (depends on 1) The seamed endless flexible belt as recited in claim 1 wherein a T-peel adhesion strength between the belt-like member and the reinforcing film is not less than 50 gf/cm. ### Claim 4 (depends on 2) The seamed endless flexible belt as set forth in claim 2, wherein the curable resin is a thermosetting resin and the cured film is formed by heating the resin composition. ### Claim 5 (depends on 2) The seamed endless flexible belt as set forth in claim 2, wherein the curable resin is a radiation—curable resin and the cured film is formed by exposing the resin composition to a radiation. ### Claim 6 (depends on 2) The seamed endless flexible belt as set forth in claim 2, wherein the cured film is formed by at least either heating the resin composition on the seamed portion or pressing the resin composition against the seamed portion. ### Claim 7 (depends on 6) The seamed endless flexible belt as set forth in claim 6, wherein the cured film is formed on a base material that is peeled off and removed from the film after forming of the film is completed. ### Claim 8 (depends on 2) The seamed endless flexible belt as set forth in claim 2, wherein the resin composition is flowable at a normal temperature and the cured film is formed by applying the resin composition to the seamed portion and curing thereof. ### Claim 9 (depends on 2) The seamed endless flexible belt as set forth in claim 2, wherein the resin composition contains a thermoplastic resin. ### Claim 10 A seamed endless flexible belt, comprising: engaging structures at both ends of the belt, which are unseparable in an advancing direction of the belt when the structures are engaged with each other; a seamed portion formed by the engaging structures being engaged with each other; and a reinforcing film which covers the seamed portion, wherein a T-peel adhesion strength between the belt-like member and the reinforcing film is not less than 50 gf/cm. ### Claim 11 (depends on 10) The seamed endless flexible belt as recited in claim 10 wherein the reinforcing film is a cured film made of a resin composition containing a curable resin. ### Claim 12 (depends on 11) The seamed endless flexible belt as set forth in claim 11, wherein the curable resin is a thermosetting resin and the cured film is formed by heating the resin composition. ### Claim 13 (depends on 11) The seamed endless flexible belt as set forth in claim 11, wherein the curable resin is a radiation-curable resin and the cured film is formed by exposing the resin composition to a radiation. ### Claim 14 (depends on 11) The seamed endless flexible belt as set forth in claim 11, wherein the cured film is formed by at least either heating the resin composition on the seamed portion or pressing the resin composition against the seamed portion. ### Claim 15 (depends on 14) The seamed endless flexible belt as set forth in claim 14, wherein the cured film is formed on a base material that is peeled off and removed from the film after forming of the film is completed. ### Claim 16 (depends on 11) The seamed endless flexible belt as set forth in claim 11, wherein the resin composition is flowable at a normal temperature and the cured film is formed by applying the resin composition to the seamed portion and curing thereof. ### Claim 17 (depends on 11) The seamed endless flexible belt as set forth in claim 11, wherein the resin composition contains a thermoplastic resin.