Invention Grant
- Patent Title: Threading device of a sewing machine
- Patent Title (中): 缝纫机穿线装置
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Application No.: US14705855Application Date: 2015-05-06
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Publication No.: US09587335B2Publication Date: 2017-03-07
- Inventor: Eiichi Shomura , Ushio Yokoyama , Shintaro Haraguchi
- Applicant: Janome Sewing Machine Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Janome Sewing Machine Co., Ltd.
- Current Assignee: Janome Sewing Machine Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Nakanishi IP Associates, LLC
- Priority: JP2014-239388 20141126
- Main IPC: B65H57/00
- IPC: B65H57/00 ; D05B87/02

Abstract:
A threading device of a sewing machine includes a flow path switching member, a base portion, and a plurality of thread introducing portions. The flow path switching member includes a gaseous body inlet portion for receiving a compressed gaseous body, a gaseous body outlet portion provided to communicate with the gaseous body inlet portion for exhausting the gaseous body, and a cylindrical outer surface portion at which the gaseous body outlet portion is opened. The base portion includes a cylindrical inner surface portion into which the cylindrical outer surface portion of the flow path switching member is inserted and for supporting the flow path switching member in a rotatable manner, and a plurality of flow paths formed to communicate with the cylindrical inner surface portion. The plurality of thread introducing portions are provided at the base portion to communicate with respective outlet sides of the plurality of flow paths.
Public/Granted literature
- US20160145787A1 THREADING DEVICE OF A SEWING MACHINE Public/Granted day:2016-05-26
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