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1. 发明授权

US11511452B2 Punching device 有权
公开(公告)号：US11511452B2
公开(公告)日：2022-11-29
申请号：US16607811
申请日：2018-04-18
申请人： TISM Co., LTD.
发明人： Katsuharu Yoshikawa
IPC分类号： B26D7/18 , B26F1/04
摘要： A punching device is provided with a punching head, a vacuum apparatus, a suction flow passage, and a suction switching apparatus. The punching head includes a plurality of hollow rods that move vertically, and punching tools each having an axially extending through hole provided at each front end of the hollow rods. The vacuum apparatus serves to suck punched chips generated during the punching process of the punching head. The suction flow passage selectively communicates the through holes of the punching tools with the vacuum apparatus. The suction switching apparatus changes a path of the suction flow passage so that the suction flow passage communicates only with a hollow rod performing a punching process, among the plurality of hollow rods.

2. 发明授权

US11993881B2 Sewing machine 有权
公开(公告)号：US11993881B2
公开(公告)日：2024-05-28
申请号：US17779173
申请日：2020-12-15
申请人： TISM CO., LTD.
发明人： Katsuharu Yoshikawa , Minao Chinen
IPC分类号： D05C11/06 , D05C7/08
CPC分类号： D05C11/06 , D05C7/08
摘要： The sewing machine is configured to prevent a string-shaped material from catching on a nearby component part thereof. A guide member for guiding the string-shaped material toward a sewing position reciprocates in a lateral direction to sew the string-shaped material to a sewing workpiece through zigzag stitching. A restriction member is disposed close to the guide member and has a laterally elongated section having a length corresponding to a range of reciprocation of the guide member. The string-shaped material extending from the guide member to the sewing position is positioned to be located beneath the laterally elongated section of the restriction member. With the presence of the laterally elongated section, when the guide member reciprocates, the string-shaped material being swung left and right by the guide member is reliably positioned (restricted) beneath the laterally elongated section. The restriction member may function as a presser foot too.

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