Document Type and Number:
Japanese Patent JPS5151835
Kind Code:
A
Abstract:
A drive chain trained about a drive and driven sprockets of different diameters is kept in proper tension by a tensioning device comprising a tensioning member located between the sprockets and extending transversely to the line of centers passing through the axes of rotation of the sprockets. The tensioning member is in the form of a rectangular block defining an opening through which the drive chain passes, opposite sides of the opening being bounded by inwardly facing abutment surfaces respectively engaging the opposite runs of the chain. The tensioning member is biased towards the larger of the sprockets and against the chain through means of a coil compression spring mounted on a guide rod which passes through an opening in the tensioning member and is pivotally mounted on and for swinging movement to the opposite sides of the line of centers of the sprockets at a location between the tensioning member and the smaller of the sprockets.
Inventors:
DEERU RUDORUFU DOBAAPUURU
Application Number:
JP7750075A
Publication Date:
May 07, 1976
Filing Date:
June 23, 1975
Export Citation:
Assignee:
DEERE & CO
International Classes:
B62M27/02; F16H7/08; B62D55/104; (IPC1-7): B62D55/12; B62D55/30