公开(公告)号：US4861403A

公开(公告)日：1989-08-29

申请号：US102884

申请日：1987-09-30

申请人： Keiichi Yoshimi ,  Shigeo Goto ,  Masaaki Asazuma

发明人： Keiichi Yoshimi ,  Shigeo Goto ,  Masaaki Asazuma

IPC分类号： B29D29/08 ,  F16G1/28

CPC分类号： B29D29/08 ,  F16G1/28

摘要： A method of fabricating a rubber double-toothed belt wherein the unvulcanized rubber thereof is firstly heat treated so as to define a first toothed portion of the belt without substantial vulcanization thereof. The preform is then entrained about pulleys and a pair of heated molds engaged with both the toothed portion and the nontoothed outer portion of the belt to place the preform under pressure at a vulcanization temperature for sufficient time to cause the outer rubber portion of the preform to flow outwardly and define the outer teeth of the final belt concurrently with the vulcanization of the double-toothed belt construction. The parameters for controlling the heat treatment to provide the configurational retention without substantial vulcanization of the preform rubber are disclosed.

公开(公告)号：US4589941A

公开(公告)日：1986-05-20

申请号：US696631

申请日：1985-01-30

申请人： Toshihiro Tanaka ,  Keiichi Yoshimi ,  Shigeo Goto

发明人： Toshihiro Tanaka ,  Keiichi Yoshimi ,  Shigeo Goto

IPC分类号： F16G1/28 ,  B29C43/22 ,  B29C70/08 ,  B29C70/46 ,  B29D29/08 ,  B29K21/00 ,  B29K105/10 ,  B29K105/24 ,  B32B31/06

CPC分类号： B29C70/083 ,  B29C43/222 ,  B29C43/228 ,  B29C70/462 ,  B29D29/085 ,  B29C2059/027

摘要： A method of forming a double timing belt wherein a belt preform is firstly formed with teeth on one face thereof. The opposite face of the belt in which the tensile cord is embedded is provided with oppositely projecting teeth in accurate alignment with the teeth of the preform by a successive molding of pluralities of such teeth to the opposite face, with the preform entrained about a pair of adjustably spaced toothed pulleys. Accurate uniform pitch line difference is maintained by providing shims between the mold and belt support during the molding of the second set of teeth to the preform. The mold and support are retained in accurate alignment by cooperating dowels and recesses on the support and mold members. Cooling devices are provided at opposite ends of the mold for preventing full vulcanization of the tooth rubber thereat.

摘要翻译： 一种形成双重同步皮带的方法，其中带状预成型件首先在其一个表面上形成有齿。 其中嵌入有拉伸绳的带的相对面设置有相反突出的齿，其通过将多个这种齿连续模制成相对的面而与预成型体的齿准确对准，预成型件夹带在一对 可调节间隔的带齿皮带轮。 在将第二组牙齿模制到预成型件期间，通过在模具和带支撑件之间提供垫片来保持精确的均匀节距线差异。 模具和支撑件通过在支撑件和模具构件上配合榫钉和凹槽保持准确对准。 冷却装置设置在模具的相对两端，用于防止在其上完全硫化牙齿橡胶。