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US 2017/0284232 A1Published application
Rocker arm and method of manufacturing the same
AssigneeOtics Corporation
InventorsNaoyuki YAMANE, Kiyoshi MASEGI, Kimihiko TODO
Life of this patent
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Abstract
A rocker arm includes a pair of sidewalk disposed along a heightwise direction so as to be opposed to each other. The sidewalk define a space to house a roller and have opposed portions extending in the heightwise direction relative to adjacent portions which are adjacent to the opposed portions. The opposed portions have thinner portions having smaller thicknesses than the adjacent portions.
Claims9
A rocker arm comprising:
- a pair of sidewalls disposed along a heightwise direction so as to be opposed to each other, the sidewalls defining a space to house a roller and having opposed portions extending in the heightwise direction relative to adjacent portions which are adjacent to the opposed portions,
- wherein the opposed portions have thinner portions having smaller thicknesses than the adjacent portions,
A method of manufacturing a rocker arm, comprising:
- stamping a plate material to form a developed body having a through hole;
- applying pressure to parts of the developed body located at both sides of the through hole to stretch the parts of the developed body, thereby forming thinner portions;
- and
- folding the developed body via a pair of folding portions parallel to each other thereby to raise portions with the thinner portions in a heightwise direction, so that a pair of sidewalls are formed which are opposed to each other with a space for housing a roller being interposed therebetween.
1 more element
Dependencies are inferred from the claim text.