Invention Grant
- Patent Title: Rack bar and rack bar teeth forming die
- Patent Title (中): 齿条和齿条齿成型模具
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Application No.: US13923038Application Date: 2013-06-20
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Publication No.: US09328815B2Publication Date: 2016-05-03
- Inventor: Makoto Nomura , Takashi Yamawaki , Ryosuke Suzuki
- Applicant: NETUREN CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: NETUREN CO., LTD.
- Current Assignee: NETUREN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2012-139552 20120621
- Main IPC: F16H1/04
- IPC: F16H1/04 ; F16H55/08 ; F16H55/10 ; F16H55/26 ; B21J13/02 ; B62D3/12 ; B21K1/76
Abstract:
A rack bar includes a shaft portion, a rack toothed portion provided on the shaft portion, and a dummy toothed portion. The rack toothed portion includes a plurality of rack teeth provided side by side in an axial direction of the shaft portion, each of the rack teeth including a contact face arranged obliquely relative to the axial direction to contact the pinion gear. The dummy toothed portion includes at least one dummy tooth provided on at least one side of the rack toothed portion in the axial direction such that the dummy tooth is arranged parallel to and next to the rack teeth. The dummy tooth is designed such that a whole height of the dummy tooth is smaller than a whole height of each of the rack teeth.
Public/Granted literature
- US20130340554A1 RACK BAR AND RACK BAR TEETH FORMING DIE Public/Granted day:2013-12-26
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