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US 4,906,222 AGranted
Belt tensioner and method of making the same
AssigneeDayco Products, Inc.
InventorDewey D. Henderson
Life of this patent
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AssigneeDayco Products, Inc.
InventorDewey D. Henderson
Estimating the term…
A belt tensioner and method of making the same are provided, the tensioner comprising a support for being fixed relative to a belt, a belt engaging unit carried by the support and being movable relative thereto, a spring operatively associated with the support and the belt engaging unit for urging the belt engaging unit relative to the support and against the belt with the force to tension the belt, the support comprising a housing containing the spring and an arm plate that is interconnected to the housing by a shaft of the support, the belt engaging unit comprising an arm rotatably mounted on the shaft and having a portion disposed intermediate the arm plate and the housing so as to be rotatable thereto, and a bushing disposed between the portion of the arm and the arm plate to facilitate movement therebetween, the arm plate having an extension extending around the portion of the arm and being operatively interconnected to the housing to tend to prevent cocking of the arm on the shaft when the belt engaging unit is tensioning the belt.
In a tensioner for a power transmission belt that is adapted to be operated in an endless path, said tensioner comprising a support means for being fixed relative to said belt, a belt engaging means carried by said support means and being movable relative thereto, spring means operatively associated with said support means and said belt engaging means for urging said belt engaging means relative to said support means and against said belt with a force to tension said belt, said support means comprising a housing means containing said spring means therein, said support means comprising an arm plate means, said support means comprising a shaft means interconnecting said arm plate means to said housing means, said belt engaging means comprising an arm rotatably mounted on said shaft means and having a portion disposed intermediate said arm plate means and said housing means so as to be rotatable relative thereto, and a bushing means disposed between said portion of said arm and said arm plate means to facilitate movement therebetween, the improvement wherein said arm plate means has an extension extending around said portion of said arm and being operatively interconnected to said housing means to tend to prevent cocking of said arm on said shaft means when said belt engaging means is tensioning said belt.
In the combination of a power transmission belt that is adapted to be operated in an endless path and a tensioner for said belt, said tensioner comprising a support means that is fixed relative to said belt, a belt engaging means carried by said support means and being movable relative thereto, spring means operatively associated with said support means and said belt engaging means, said spring means urging said belt engaging means relative to said support means and against said belt with a force that tensions said belt, said support means comprising a housing means containing said spring means therein, said support means comprising an arm plate means, said support means comprising a shaft means interconnecting said arm plate means to said housing means, said belt engaging means comprising an arm rotatably mounted on said shaft means and having a portion disposed intermediate said arm plate means and said housing means so as to be rotatable relative thereto, and a bushing means disposed between said portion of said arm and said arm plate means to facilitate movement therebetween, the improvement wherein said arm plate means has an extension extending around said portion of said arm and being operatively interconnected to said housing means to tend to prevent cocking of said arm on said shaft means caused by said belt engaging means tensioning said belt.
In a method of making a tensioner for a power transmission belt that is adapted to be operated in an endless path, said tensioner comprising a support means for being fixed relative to said belt, a belt engaging means carried by said support means and being movable relative thereto, spring means operatively associated with said support means and said belt engaging means for urging said belt engaging means relative to said support means and against said belt with a force to tension said belt, said support means comprising a housing means containing said spring means therein, said support means comprising an arm plate means, said support means comprising a shaft means interconnecting said arm plate means to said housing means, said belt engaging means comprising an arm rotatably mounted on said shaft means and having a portion disposed intermediate said arm plate means and said housing means so as to be rotatable relative thereto, and a bushing means disposed between said portion of said arm and said arm plate means to facilitate movement therebetween, the improvement comprising the steps of forming said arm plate means with an extension that extends around said portion of said arm, and operatively interconnecting said extension to said housing means to tend to prevent cocking of said arm on said shaft means when said belt engaging means is tensioning said belt.
Dependencies are inferred from the claim text.