Toothed belt
In a toothed belt including a toothed belt body and a reinforcing cloth, the toothed belt body includes a rubber composition and has a base part formed into a flat band shape and a plurality of rubber tooth parts, which are arranged integrally with one face of the base part and spaced apart from each other in a belt lengthwise direction. The reinforcing cloth is attached to the toothed belt body to cover a face, of the toothed belt body, with the rubber tooth parts. Each of the rubber tooth parts is covered with the reinforcing cloth in a corresponding one of cloth-covered tooth parts where a rate of a volume of the reinforcing cloth with respect to a volume of the cloth-covered tooth part is 60% or more.
1. A toothed belt, comprising a toothed belt body and a reinforcing cloth, the toothed belt body including a rubber composition and having a base part formed into a flat band shape and a plurality of rubber tooth parts, the rubber tooth parts being arranged integrally with one face of the base part and spaced apart from each other in a belt lengthwise direction,
the reinforcing cloth being attached to the toothed belt body to cover a face, of the toothed belt body, with the rubber tooth parts,
each of the rubber tooth parts being covered with the reinforcing cloth in a corresponding one of cloth-covered tooth parts where a rate of a volume of the reinforcing cloth with respect to a volume of the cloth-covered tooth part is 60% or more.
2. The toothed belt of claim 1 , wherein
the reinforcing cloth is attached to the toothed belt body via an adhesion layer, and the
adhesion layer comprises H-NBR rubber.
3. The toothed belt of claim 1 , wherein
the toothed belt includes cords embedded to extend in a lengthwise direction of the toothed belt body and made of glass fiber,
the rubber composition constituting the toothed belt body comprises H-NBR as a rubber component, and
the reinforcing cloth comprises nylon.
4. The toothed belt of claim 1 , wherein
the plurality of cloth-covered tooth parts are arranged at a pitch of 2 mm or more and 3 mm or less.