TOOTHED BELT AND MANUFACTURING METHOD THEREFOR

• Main Authors: ITSUMI YUSUKE, MIZUMOTO TAKUMI, OSAKI YUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2023
• Subjects: BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES; BLASTING; CHAINS; ENGINEERING ELEMENTS AND UNITS; FITTINGS PREDOMINANTLY USED THEREFOR; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a toothed belt capable of realizing rigidity and flexibility of a tooth part.SOLUTION: A toothed belt 1 comprises a back part 1c in which a core wire 5 extending in a belt circumferential direction is embedded, and a plurality of tooth parts 1a formed at intervals in the belt circumferential direction on the inner peripheral surface of the back part 1c. The toothed belt includes a back rubber layer 6 formed on a belt outer peripheral side with respect to the core wire 5, and a first rubber layer 3 and a second rubber layer 4 formed on a belt inner peripheral side with respect to the core wire, where the belt inner peripheral surface is composed of a tooth cloth 2. The back part 1c includes the back rubber layer 6. The tooth part 1a is formed by the tooth cloth 2, the first rubber layer 3 formed along the tooth cloth 2, and the second rubber layer 4 interposed between the first rubber layer 3 and the core wire 5. The modulus of elasticity of the first rubber layer 3 is adjusted to be larger than the modulus of elasticity of the second rubber layer 4.SELECTED DRAWING: Figure 2 【課題】歯部の剛性と屈曲性とを両立できる歯付ベルトを提供する。【解決手段】ベルト周方向に延びる心線５が埋設された背部１ｃと、前記背部１ｃの内周面に、ベルト周方向に間隔をおいて形成された複数の歯部１ａとを備え、前記心線５に対してベルト外周側に形成されている背ゴム層６と、前記心線に対してベルト内周側に形成されている第１ゴム層３および第２ゴム層４とを含み、かつ前記ベルト内周面が歯布２で構成された歯付ベルト１において、前記背部１ｃは前記背ゴム層６を含み、前記歯部１ａを、前記歯布２と、前記歯布２に沿って形成された前記第１ゴム層３と、この第１ゴム層３と前記心線５との間に介在する前記第２ゴム層４とで形成し、前記第１ゴム層３の弾性率を前記第２ゴム層４の弾性率よりも大きく調整する。【選択図】図２