Patents by Inventor Takazo Ito
Takazo Ito has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8257010Abstract: Disclosed is a bar feeder, which is capable of reliably loading a bar onto a guide rail with a simplified structure. The bar feeder 1 comprises a stock rack 8, a guide rail 4 for guiding a bar to a bar machining apparatus, and a bar supply mechanism 32 for taking bars W one by one out of the stock rack 8 and supplying the taken-out bar W onto the guide rail 4. The bar supply mechanism 32 includes a lifting member 40 adapted to lift a downstreammost one of the bar W on the stack rack 8, a bar receiving member 42 adapted to receive thereon the lifted bar W and supply the bar W onto the guide rail 4, and a stopper member 36 adapted to holds a second-downstreammost one of the bar W to be subsequently supplied. The lifting member 40 and the bar receiving member 42 are adapted to be driven by a common moving device 44, in such a manner that the lifting member 40 is linearly moved in an upward-downward direction in conjunction with a swing movement of the bar receiving member 42.Type: GrantFiled: January 15, 2009Date of Patent: September 4, 2012Assignee: Ikura Seiki Co., Ltd.Inventors: Kiyoshi Hirosawa, Takazo Ito, Kenji Sato
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Publication number: 20090180856Abstract: Disclosed is a bar feeder, which is capable of reliably loading a bar onto a guide rail with a simplified structure. The bar feeder 1 comprises a stock rack 8, a guide rail 4 for guiding a bar to a bar machining apparatus, and a bar supply mechanism 32 for taking bars W one by one out of the stock rack 8 and supplying the taken-out bar W onto the guide rail 4. The bar supply mechanism 32 includes a lifting member 40 adapted to lift a downstreammost one of the bar W on the stack rack 8, a bar receiving member 42 adapted to receive thereon the lifted bar W and supply the bar W onto the guide rail 4, and a stopper member 36 adapted to holds a second-downstreammost one of the bar W to be subsequently supplied. The lifting member 40 and the bar receiving member 42 are adapted to be driven by a common moving device 44, in such a manner that the lifting member 40 is linearly moved in an upward-downward direction in conjunction with a swing movement of the bar receiving member 42.Type: ApplicationFiled: January 15, 2009Publication date: July 16, 2009Applicant: IKURA SEIKI CO., LTD.Inventors: Kiyoshi HIROSAWA, Takazo ITO, Kenji SATO
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Patent number: 7520200Abstract: Disclosed is a bar feeder, which comprises a swing member designed to be swingably moved by a rotation shaft located above a guide rail. In normal mode, the swing member is kept in a standby in the vicinity of an upper position where the swing member is located to extend across and over a guide rail up to a bar rack. The swing member normally rotated to a lower position where the swing member is located on a far side from the bar rack with respect to the guide rail. During the process, the swing member receives a bar from the bar rack, and loads the bar to the guide rail. When a bar is removed from the guide rail, the movement of a bar to the swing member is inhibited by an inhibition member, and the swing member without a bar is moved to the lower position to create an ejection space between the rotation shaft and the bar rack. The present invention makes it possible to readily remove the bar loaded in the guide rail therefrom.Type: GrantFiled: March 6, 2006Date of Patent: April 21, 2009Assignees: Ikuraseiki Manufacturing Co., Ltd., Citizen Holdings, Co., LtdInventors: Kiyoshi Hirosawa, Takazo Ito, Kenji Sato, Hiroshi Shinohara
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Publication number: 20060153666Abstract: Disclosed is a bar feeder, which comprises a swing member designed to be swingably moved by a rotation shaft located above a guide rail. In normal mode, the swing member is kept in a standby in the vicinity of an upper position where the swing member is located to extend across and over a guide rail up to a bar rack The swing member normally rotated to a lower position where the swing member is located on a far side from the bar rack with respect to the guide rail. During the process, the swing member receives a bar from the bar rack, and loads the bar to the guide rail. When a bar is removed from the guide rail, the movement of a bar to the swing member is inhibited by an inhibition member, and the swing member without a bar is moved to the lower position to create an ejection space between the rotation shaft and the bar rack The present invention makes it possible to readily remove the bar loaded in the guide rail therefrom.Type: ApplicationFiled: March 6, 2006Publication date: July 13, 2006Applicants: IKURASEIKI Manufacturing Co., Ltd., Citizen Watch Co., Ltd.Inventors: Kiyoshi Hirosawa, Takazo Ito, Kenji Sato, Hiroshi Shinohara
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Patent number: 6182543Abstract: A bar loder, includes a guide rail for feeding a bar to a bar machining apparatus. The guide rail extends straight toward the bar machining apparatus and has an opening for receiving a new bar. The opening is oriented upwardly and extends longitudinally along the guide rail. An oil outlet is provided for feeding oil into the guide rail, with an amount of the oil being enough to coat a peripheral surface of the bar.Type: GrantFiled: June 16, 1997Date of Patent: February 6, 2001Assignee: Ikuraseiki Seisakusho Co., Ltd.Inventors: Takazo Ito, Kenji Sato, Kazuhiko Takeoka
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Patent number: 6099226Abstract: A bar loader for feeding a bar to a bar machining apparatus comprises a feeding rod for moving the bar and a guide rail for guiding the bar. The guide rail includes a guide rail body with an upper opening for receiving the bar and a lid member for covering the upper opening of the guide rail body and is operable to be opened and closed. A bar passageway formed between the guide rail body and the lid member has an inner wall surface. A plurality of oil grooves are formed on the inner wall surface which extend in a circumferential direction and arranged at a distance from each other in a longitudinal direction of the guide rail. It also has oil supplying system for supplying oil into the bar passageway.Type: GrantFiled: July 29, 1998Date of Patent: August 8, 2000Assignee: Ikuraseiki Seisakusho Co., Ltd.Inventors: Takazo Ito, Kenji Sato