Abstract: A chain, a chain wheel and a chain transmission for a lifting gear in accordance with the present invention increases the dynamic resistance of a round steel chain that is primarily intended for use in combination with a lifting gear. The chain members (5, 6) are locally deformed plastically in the area of their braces (9, 10) so as to form flat lateral zones (11).
Type:
Grant
Filed:
August 4, 2001
Date of Patent:
August 9, 2005
Assignee:
RUD Kettenfabrik Reiger & Dietz GmbH u. Co.
Abstract: In a multi-strand chain conveyor having conveying members (1) which are connected via coupling elements (2) to connecting links (9) of identical orientation of adjacent chain strands (17, 18, 19), projections (5) of the coupling elements (2) engage into the clear inner spaces (14) of connecting links (9) of the outer chain strands (17, 18) in a manner such that their ends point in different directions. As a result of the different direction of engagement of the ends of the projections (5) into the connecting links (9), undesired twisting of the outer chain strands (17, 18) are countered and in this manner the security of the connection between the conveying members (1) and the chain strands (17, 18, 19) is increased.
Type:
Grant
Filed:
January 4, 1989
Date of Patent:
December 4, 1990
Assignee:
RUD-Kettenfabrik Reiger & Dietz GmbH u. Co.