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US 5,316,132 AGranted
Conveyor belt and method for its manufacture
AssigneeFA. Ernst Siegling
InventorsTomonori Muraoka, Isato Atsumi
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AssigneeFA. Ernst Siegling
InventorsTomonori Muraoka, Isato Atsumi
Estimating the term…
A conveyor belt is described, which has a support fabric, which is provided with at least one thermoplastic material coating and is characterized in that onto its cutting edges is welded a thermoplastic, strand-like profile material, preferably a round cord so as to constitute an edge protection. Due to the fact that the strand-like profile material (round cord) has a lower melting point than the thermoplastic material of the coating, during welding, substantially no deformation occurs in the coating, even in the vicinity of the contact faces, whereas the profile material having a lower melting point is deformed and adapts to the shape of the cutting edge of the conveyor belt and covers the same. The inventive method makes it possible to economically provide individual endless and finite conveyor belts with an edge protection when this proves necessary.
Conveyor belt with a support fabric, which is provided with at least one thermoplastic coating, characterized in that to cut edges of the conveyor belt is welded a thermoplastic, strand-like profile material as an edge protection, the strand-like profile material having a lower melting point than the thermoplastic material of the coating.
In a conveyor belt, particularly for use in the textile industry and in the food industry as well as for clean-room technology, said belt having two longitudinal edges and being cut at the two longitudinal edges and has a support fabric having fibers, which is provided with at least one coating of a thermoplastic synthetic material, characterized in that a rope-shaped, profiled material is welded as edge protection to the cut edges of the belt, which profiled material has a lower melting point than that of the thermoplastic synthetic material of the coating, which, in the state in which it is beginning to melt, is welded together with said coating which is melted as far as a soft state, so that mixing takes place at the contact surface between the profiled material and the coating and the fibers of the supporting fabric are sealed into the profiled material in the area of the contact surface.
Dependencies are inferred from the claim text.