Tentering chain with guide rollers
AssigneeLindauer Dornier Gesellschaft mbH
InventorsAndreas Rutz, Rudolf Langer, Hans-Juergen Maierhofer, Adolf Mueller
Life of this patent
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AssigneeLindauer Dornier Gesellschaft mbH
InventorsAndreas Rutz, Rudolf Langer, Hans-Juergen Maierhofer, Adolf Mueller
Estimating the term…
A tentering chain is guided between two guide rails extending in parallel to each other. One guide rail (19a) is an outer guide rail with regard to a course followed by the chain, while the other guide rail (19b) is an inner guide rail. The chain links are hinged to each other by a journal pin which carries a first guide roller on an inner pin section between chain link plates, and a second guide roller on a cranked outer pin section. Thus, the rotational axes of these two guide rollers extend in parallel to each other and spaced from each other, so that one guide roller can only contact one guide rail, but not the other and vice versa. This feature prevents the reversal of the rotation direction of the guide rollers as they travel along the parallel guide rails.
A tentering chain, comprising a plurality of chain links including chain link plates for carrying tenter clamp bodies, chain link journalling means for hingedly interconnecting two neighboring chain links, said chain link journalling means comprising a fixed journal pin, said tentering chain further comprising first and second guide rollers for each journal pin, said first guide roller being operatively mounted on an inner pin section of said fixed journal pin between said chain link plates, said fixed journal pin including a cranked outer pin section outside said chain link plates, said cranked outer pin section having a central axis extending in parallel to a central journal axis of said journal pin, said second guide roller being operatively mounted on said outer cranked pin section, said first and second guide rollers being arranged for cooperation with guide rails for said tentering chain, whereby said outer cranked pin section makes sure that each of said guide rollers can contact only its respective guide rail to prevent a roller rotation direction reversal of said guide rollers.
A tentering chain, comprising a plurality of chain links including chain link plates, journal pin means for interconnecting neighboring chain links, a first horizontal guide roller rotatable mounted on said journal pin between said chain link plates, a second horizontal guide roller, and means for mounting said second horizontal guide roller outside said chain link plates in such a position that a rotatational axis of said second guide roller extends in parallel to and with a spacing from a rotational axis of said first horizontal guide roller, said spacing extending in a direction for permitting each guide roller to contact only a respective guide rail while preventing each guide roller from contacting a guide rail of the other guide roller and vice versa, and wherein said mounting means of said second horizontal guide roller comprise a crank forming an integral part of said journal pin means outside said chain link plates.
Dependencies are inferred from the claim text.