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US Patent 7429169 Clamping apparatus and molding machine

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Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
74291691
Patent Inventor Names
Makoto Tsuji1
Saburo Noda1
Toshiaki Toyoshima1
Date of Patent
September 30, 2008
1
Patent Application Number
114192591
Date Filed
May 19, 2006
1
Patent Primary Examiner
James Mackey
James Mackey
1
Patent abstract

A clamping apparatus having a simple configuration and capable of opening and closing dies and clamping the dies, which includes a base frame; a fixed die plate; a movable die plate; a rack fixed with respect to the base frame and extending in a die opening and closing direction; a pinion pivotally supported by the movable die plate and meshing with the rack; a motor provided in the movable die plate, driving and rotating the pinion, and moving the movable die plate toward the die opening and closing direction; a tie bar having a jointed portion; a joint portion provided on the movable die plate and capable of engaging and disengaging the jointed portion of the tie bar; and a clamping cylinder provided on the fixed die plate and imparting tension to the tie bar with the joint portion and the jointed portion jointed to generate clamping force.

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