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US Patent 7757578 Gear change control system of automatic transmission

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
77575781
Patent Inventor Names
Masanori Shintani1
Masashi Fujimoto1
Date of Patent
July 20, 2010
1
Patent Application Number
122850811
Date Filed
September 29, 2008
1
Patent Primary Examiner
‌
Tisha D Lewis
1
Patent abstract

A gear change control system of an automatic transmission, includes: a shift member, including a shaft portion having a selection axis oriented in a selecting direction, and a pair of arm portions formed on the shaft portion and projecting therefrom; shift rail members, having rail shaft portions, and having a shift axis oriented in a shifting direction; shift fork portions, formed on the rail shaft portions; shift lug members, formed on the rail shaft portions and including pillar-shaped portions. The arm portions swing about the selection axis to apply a pressure in the shifting direction from one side of the pillar-shaped portion by one of the arm portions to cause the shift fork portion to make a shifting operation, and to apply a pressure in the shifting direction from the other side of the pillar-shaped portion by the other arm portion to make a shift withdrawing operation.

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