Patents by Inventor Tetsurou Kondou
Tetsurou Kondou 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: 8844453Abstract: A guide is mounted to a rotary member which is freely rotatable about the axis of a needle bar, and guides a sewing material to a needle drop position of the sewing needle. A cutter device is mounted to a side of the rotary member opposed to the guide in such a manner that the cutter device is rotatable together with the rotary member for cutting the sewing material, having been paid out from the guide, at a predetermined cutting position. A retention mechanism is incorporated in the cutter device for retaining an end portion of the sewing material, at a position closer to the guide than the predetermined cutting position and in interlocked relation to cutting, by the cutter device, of the sewing material. Thus, upon restart of sewing of the sewing material, the retention mechanism retains an end portion of the sewing material.Type: GrantFiled: April 19, 2011Date of Patent: September 30, 2014Assignee: Tokai Kogyo Mishin Kabushiki KaishaInventor: Tetsurou Kondou
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Patent number: 8312823Abstract: A guide member is moved in interlocked relation to a rotary member rotating about the axis of a needle bar, so that a string-shaped material paid out from a bobbin is guided to a needle drop position of a sewing needle. The bobbin having the string-shaped material wound thereon is supported by a support member that is rotatable generally about the axis of the needle bar and disposed over a machine table in such a manner as to not hamper movement of an embroidery frame. The bobbin can be positioned at a distance from a machine head; thus, bobbins of increased sizes can be used. The support member is controlled in orientation, by means of a drive source, in accordance with rotation of the rotary member. The bobbin itself revolves around the machine head, which allows the string-shaped material to be constantly appropriately guided to the needle drop position.Type: GrantFiled: November 18, 2010Date of Patent: November 20, 2012Assignee: Tokai Kogyo Mishin Kabushiki KaishaInventor: Tetsurou Kondou
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Publication number: 20110253021Abstract: A guide is mounted to a rotary member which is freely rotatable about the axis of a needle bar, and guides a sewing material to a needle drop position of the sewing needle. A cutter device is mounted to a side of the rotary member opposed to the guide in such a manner that the cutter device is rotatable together with the rotary member for cutting the sewing material, having been paid out from the guide, at a predetermined cutting position. A retention mechanism is incorporated in the cutter device for retaining an end portion of the sewing material, at a position closer to the guide than the predetermined cutting position and in interlocked relation to cutting, by the cutter device, of the sewing material. Thus, upon restart of sewing of the sewing material, the retention mechanism retains an end portion of the sewing material.Type: ApplicationFiled: April 19, 2011Publication date: October 20, 2011Applicant: TOKAI KOGYO MISHIN KABUSHIKI KAISHAInventor: Tetsurou KONDOU
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Publication number: 20110113998Abstract: A guide member is moved in interlocked relation to a rotary member rotating about the axis of a needle bar, so that a string-shaped material paid out from a bobbin is guided to a needle drop position of a sewing needle. The bobbin having the string-shaped material wound thereon is supported by a support member that is rotatable generally about the axis of the needle bar and disposed over a machine table in such a manner as to not hamper movement of an embroidery frame. The bobbin can be positioned at a distance from a machine head; thus, bobbins of increased sizes can be used. The support member is controlled in orientation, by means of a drive source, in accordance with rotation of the rotary member. The bobbin itself revolves around the machine head, which allows the string-shaped material to be constantly appropriately guided to the needle drop position.Type: ApplicationFiled: November 18, 2010Publication date: May 19, 2011Applicant: TOKAI KOGYO MISHIN KABUSHIKI KAISHAInventor: Tetsurou KONDOU
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Patent number: 7370592Abstract: Sewing machine includes a tension detection section (26) for detecting tension acting on a sewn material (A) paid out from a rotary holder member, and a drive section for driving the rotary holder member, and the driving operation of the drive section (14) is controlled on the basis of the detection by the tension detection section. Once the tension acting on the sewn material has increased, the rotary holder member is driven to rotate by the drive section, so that the sewn material can be paid out smoothly from the rotary holder member. The sewing machine is particularly useful in a case where the rotary holder member is constructed into an increased size so that an increased amount of the sewn material can be wound thereon.Type: GrantFiled: November 16, 2004Date of Patent: May 13, 2008Assignee: Tokai Kogyo Mishin Kabushiki KaishaInventors: Ikuo Tajima, Tetsurou Kondou
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Publication number: 20070137540Abstract: Sewing machine includes a tension detection section (26) for detecting tension acting on a sewn material (A) paid out from a rotary holder member, and a drive section for driving the rotary holder member, and the driving operation of the drive section (14) is controlled on the basis of the detection by the tension detection section. Once the tension acting on the sewn material has increased, the rotary holder member is driven to rotate by the drive section, so that the sewn material can be paid out smoothly from the rotary holder member. The sewing machine is particularly useful in a case where the rotary holder member is constructed into an increased size so that an increased amount of the sewn material can be wound thereon.Type: ApplicationFiled: November 16, 2004Publication date: June 21, 2007Applicant: TOKAI KOGYO MISHIN KABUSHIKI KAISHAInventors: Ikuo Tajima, Tetsurou Kondou