Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Belt shifter for shifting belt laterally or for selective...
Reexamination Certificate
2002-09-26
2004-08-31
Hannon, Thomas R. (Department: 3682)
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Belt shifter for shifting belt laterally or for selective...
Reexamination Certificate
active
06783473
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to a belt installation tool, and more particularly to a belt installation tool comprising a molded body having an arcuate surface normal to a planar surface for installing a belt.
BACKGROUND OF THE INVENTION
Belt drive systems generally comprise a belt entrained about two or more pulleys. In order to properly transmit a torque or power from a driven pulley to a driver pulley, a belt must be installed with a predetermined tension. This can be accomplished in one of several ways. One method consists of adjusting a pulley center; first to engage a slack belt, and then by moving the pulley center to apply a tension.
Another method comprises wrapping a belt about a pulley rim without moving a pulley center. This method can be accomplished using a tool for engaging a belt with a pulley. Prior art tools are available that provide a surface for urging a belt into a pulley groove.
Representative of the art is U.S. Pat. No. 6,033,331 to Winninger (2000) which discloses a tool for installing a stretch belt on a pulley.
What is needed is a belt installation tool comprising a molded body having a tool access portion extending opposite to a belt engaging portion. What is needed is a belt installation tool comprising a molded body having an arcuate belt engaging surface normal to a planar surface. What is needed is a belt installation tool having a lightweight planar body. The present invention meets these needs.
SUMMARY OF THE INVENTION
The primary aspect of the invention is to provide a belt installation tool comprising a molded body having a tool access portion extending opposite to a belt engaging portion.
Another aspect of the invention is to provide a belt installation tool comprising a molded body having an arcuate belt engaging surface normal to a planar surface.
Another aspect of the invention is to provide a belt installation tool having a lightweight planar body.
Other aspects of the invention will be pointed out or made obvious by the following description of the invention and the accompanying drawings.
The invention comprises a belt installation tool comprising a substantially planar body. A belt engaging surface extends substantially normally from a portion of the planar body. A pulley engaging portion extends from the planar body approximately opposite the belt engaging surface. A central bore allows a tool to engage a pulley shaft. In use, the pulley engaging surface engages a pulley whereby the tool is rotated by a pulley rotation about a pulley axis, thereby causing the belt engaging surface to automatically urge a belt onto a pulley. The planar body stabilizes the tool against the pulley as a belt is installed. The molded body may be fabricated by injection molding.
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patent: 2003/0211910 (2003-11-01), Gerring et al.
De Meester Marc
Slagmulder Kamiel
Vanheusden Adelbrecht
Austin, Esq. S. G.
Castleman, Esq. C. H.
Hannon Thomas R.
The Gate Corporation
Thurnau, Esq. J. A.
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