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AssigneesHonda Giken Kogyo Kabushiki Kaisha, Tanaka Seimitsu Kogyo Co., Ltd.
InventorsMamoru Kosuge, Toshiyuki Sato, Toshitsugu Oomori, Kazuhiko Hayashi
Estimating the term…
In a valve operating system for an internal combustion engine, a support shaft supporting a roller is fitted in a fitting bore of a rocker arm, and a pin fixed in the rocker arm engages with an engage groove provided on the outer surface of the support shaft so as to extend in a direction tangential to an imaginary circle about the axis of the support shaft, an insertion bore which extends in a straight line and connects to an inner surface of a fitting bore at a position corresponding to the engage groove of the support shaft is provided in the rocker arm and the pin engaging with the engage groove by being inserted into the insertion bore is engaged with the rocker arm by crimping at least one end of the pin with flat punches so as to be fixed in the rocker arm. The pin can thus be fixed effectively in the rocker arm while maintaining the rigidity of the rocker arm.
A valve operating system for an internal combustion engine comprising a support shaft for supporting in a rotatable manner a roller which is in rolling contact with a valve operating cam, the support shaft being fitted in a fitting bore provided in a rocker arm, an engage groove which extends in a direction tangential to an imaginary circle about an axis of said support shaft, and which is provided on an outer surface of said support shaft, and a pin engaging with said engage groove and fixed in said rocker arm, wherein an insertion bore extends in a straight line through an inner surface of said fitting bore at a position corresponding to said engage groove of said support shaft and is provided in said rocker arm, and said pin is inserted into said insertion bore and is engaged with said rocker arm by crimping at least one end of said pin with a flat punch so as to be fixed in said rocker arm.
Dependencies are inferred from the claim text.