Title:
針糸通し装置を備えたミシン
Document Type and Number:
Japanese Patent JP4789360
Kind Code:
B2
Abstract:
A sewing machine with needle threading device is disclosed, wherein the thread passed through the needle eye of needle of the sewing machine by operation of a threading hook may be released from the threading hook during a process of the threading hook moving up to the upper initial position after the threading operation] is finished. More precisely, the sewing machine comprising a threading shaft 2 having a threading hook 4b mounted to the lower end thereof, a control means CPU for providing a descending process wherein the threading shaft 2 is moved down from an upper initial position to a lower threading position where the threading hook 4b is operated to catch a thread to pass the thread through the needle eye and an ascending process wherein the threading shaft 2 is moved up from the lower threading position to the upper initial position, the ascending process including an initial process wherein the threading shaft 2 is moved up a predetermined distance from the lower threading position to pull up the threaded thread, a second process wherein the threading shaft 2 is moved down a predetermined distance after the initial process to have the threading hook 4b release the threaded thread and a final process wherein the threading shaft 2 is moved up to the upper initial position after the second process while said threaded thread is released from said threading hook 4b.
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Inventors:
Yasuo Sano
Eiji Murakami
Eiji Murakami
Application Number:
JP2001212742A
Publication Date:
October 12, 2011
Filing Date:
July 12, 2001
Export Citation:
Assignee:
Janome Sewing Machine Co., Ltd.
International Classes:
D05B87/02; D05B19/02; D05B65/00
Domestic Patent References:
| JP4032676U | ||||
| JP8173677A | ||||
| JP11276753A | ||||
| JP2000070583A | ||||
| JP4064377U | ||||
| JP2002113281A | ||||
| JP2001218992A |
Attorney, Agent or Firm:
Kunio Iwahori