Method of pretensioning power transmission chain,device for said method and power transmission apparatus
AssigneeJtekt Corporation
InventorsShigeo Kamamoto, Joel Kuster, Seiji Tada
Life of this patent
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Abstract
An endless loop-like chain 1p consists of a plurality of link plates, laminated, that are linked to be freely bendable by pin members. The endless loop-like chain 1p is looped over each of the upper rollers and a lower roller to make up a polygon. If the chain is rotated endlessly while a tension load is imposed on the chain by each of the rollers, a pretensioned chain is obtained.
Claims11
A method of pretensioning a power transmission chain which is an endless loop chain including a plurality of link plates which are laminated and linked to be freely bendable by pin members, the method comprising:
- looping the chain over three or more rollers constituting a polygon;
- pretensioning the chain by rotating the chain endlessly while a tension load is imposed on the chain by each of the rollers.
A pretensioning device for pretensioning a power transmission chain which is an endless loop chain including a plurality of link plates which are laminated and linked to be freely bendable by pin members, the pretensioning device comprising:
- three or more rollers constituting a polygon, the chain being looped over the rollers;
- a device main body that rotatably supports the rollers and shifts at least one of the rollers in an inside or outside direction of the polygon;
- and
- a roller driving portion that moves the at least one roller in the inside or outside direction.
Dependencies are inferred from the claim text.