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US 2015/0337942 A1Published application
Gear device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTakashi Kiten
Life of this patent
Estimating the term…
Abstract
A gear of a gear device includes a plurality of teeth having tooth surfaces. The tooth surfaces are shaped such that contact length ratios of three or more of the teeth are outside a predetermined range centered on an average value of the contact length ratios of all of the teeth, where the contact length ratio is obtained by dividing a contact length of a tooth contact face by a diagonal length of a plane of action.
Claims3
A gear device comprising:
- a gear including a plurality of teeth, the plurality of teeth having tooth surfaces, the tooth surfaces being shaped such that contact length ratios of three or more of the teeth are outside a predetermined range centered on an average value of the contact length ratios of all of the teeth, the contact length ratio being obtained by dividing a contact length of a tooth contact face by a diagonal length of a plane of action.
Dependencies are inferred from the claim text.