Endless belt power transmission systems or components – Friction drive pulley or guide roll
Reexamination Certificate
2011-07-19
2011-07-19
Mansen, Michael R (Department: 3654)
Endless belt power transmission systems or components
Friction drive pulley or guide roll
Reexamination Certificate
active
07980977
ABSTRACT:
A power transmission apparatus includes a pulley1having a belt attached thereto to transmit the rotating drive force, a hub2which connects the pulley to a rotating shaft of a driven device, a bearing7which rotatably supports the pulley, and a sleeve ring5which is fitted and secured to the pulley and attaches the bearing to the pulley to prevent it relatively moving. The sleeve ring is provided, on its first end opposite to the driven device, with a bent portion5bagainst which the bearing abuts to restrict further movement of the bearing. An annular retainer6is provided on the portion of the bearing adjacent to the drive device. The bearing is secured to the sleeve ring through the annular retainer by calking a second end5aof the sleeve ring opposite to the first end. The sleeve ring is provided with a projection5fwhich projects in the axial direction from the rear surface of the pulley and a casing9is provided with an annular groove9cwhich at least partly receives therein the projection.
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Office Action dated Dec. 3, 2008 in corresponding Japanese patent application No. 2005-028965 (and English translation).
Nagae Hiroshi
Nosaka Michiyasu
Tabuchi Yasuo
Tada Yoshiki
Tanabe Mitsuhiro
Denso Corporation
Mansen Michael R
Posz Law Group , PLC
Reese Robert T
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