RICOH ELEMEX CORPORATION Patent applications |
Patent application number | Title | Published |
20140141896 | Method of Manufacturing Screw Thread and Screw Thread - The removal starting position ( | 05-22-2014 |
20130206829 | SHEET MATERIAL PUNCHING DEVICE - A sheet material punching device includes a plurality of punches and links, a driving mechanism having drive gears capable of transmitting a rotational driving force of an electric motor (driving source), and slide arms allowed to reciprocate along the longitudinal direction of a frame, the slide arms making the punches reciprocate in a punching direction along with their own reciprocating motions by the intermediary of links. The slide arms respectively have cams capable of converting the rotational motion of the driving mechanism into the reciprocating motions of the slide arms, and auxiliary cams capable of moving the slide arms to predefined initial positions. The drive gears respectively have cam followers to be engaged with the cams, and auxiliary cam followers to be engaged with the auxiliary cams. The sheet material punching device return the slide arms to the initial positions without increasing a driving energy. | 08-15-2013 |
20120192692 | Sheet Material Punching Device - A sheet material punching device comprises punching pins, a die member having die holes formed therein, a frame having a housing space defined by wall portions inside to house therein the die member and the punching pins, the frame having a longitudinal direction extending in a width direction of a sheet material W, and paper feed ports formed in the wall portions of the frame for the sheet material W to be transported through, wherein the die member being bridged across the paper feed ports is supported in a predefined length in the width direction of the sheet material W. The sheet material punching device thus configured can prevent deflection of the die member caused by a punching force applied to the die member by the punching pins during the formation of punched holes. | 08-02-2012 |