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US 2020/0056693 A1Published application
Rack bar and method for manufacturing rack bar
AssigneeNeturen Co., Ltd.
InventorsTakashi YAMAWAKI, Norimasa SUNAGA
Life of this patent
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Abstract
A rack bar includes a shaft member having a toothed section. The toothed section has a plurality of rack teeth, and extends over a portion of an entire length of the shaft member along a longitudinal direction of the shaft member. The shaft member has a grinding-finished outer peripheral surface extending over the entire length of the shaft member including the toothed section. A method for manufacturing the rack bar includes forming the toothed section by plastic working and grinding the outer peripheral surface to improve shape accuracy.
Claims6
1-6. (canceled)
A method for manufacturing a rack bar, comprising:
- forming a toothed section having a plurality of rack teeth by a plastic working over a portion of an entire length of the shaft member along a longitudinal direction of the shaft member;
- and
- grinding an outer peripheral surface of the shaft member over the entire length of the shaft member including the toothed section.
Dependencies are inferred from the claim text.