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Title:
SEWING MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/138800
Kind Code:
A1
Abstract:
Provided is a sewing machine that is capable of driving, by means of a common drive source, a mechanism for cutting a thread and a mechanism for maintaining a state where a feed dog is disposed below a throat plate. This sewing machine is characterized by being provided with: a throat plate; a lower shaft that is driven to rotate by a sewing machine motor and that drives a hook mechanism disposed below the throat plate; a feed dog that moves an object to be sewn and that is driven back and forth by a rotary driving force of the lower shaft so as to move the object; a vertical drive mechanism 2 for vertically driving the feed dog; a switching mechanism 3 for switching the state from an operation state where the feed dog is vertically driven, by the vertical drive mechanism 2, to the upper side and the lower side from the upper surface of the throat plate to a nonoperation state where the upper surface of the feed dog is maintained to be located below the upper surface of the throat plate; a cutting mechanism that has a cutting blade for cutting a sewing thread below the throat plate; and a common motor M that drives the switching mechanism and the cutting mechanism.

Inventors:
UEDA Daisuke (15-1 Naeshiro-cho, Mizuho-ku, Nagoya-sh, Aichi 61, 〒4678561, JP)
FUNATO Nobuhiko (15-1 Naeshiro-cho, Mizuho-ku, Nagoya-sh, Aichi 61, 〒4678561, JP)
Application Number:
JP2018/046504
Publication Date:
July 18, 2019
Filing Date:
December 18, 2018
Export Citation:
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Assignee:
BROTHER KOGYO KABUSHIKI KAISHA (15-1, Naeshiro-cho Mizuho-ku, Nagoya-sh, Aichi 61, 〒4678561, JP)
International Classes:
D05B69/12; D05B27/24; D05B65/02
Foreign References:
JP2007244721A2007-09-27
JP2007282978A2007-11-01
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