The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2022
Filed:
Apr. 17, 2020
Janome Sewing Machine Co., Ltd., Tokyo, JP;
Tatsuo Takei, Tokyo, JP;
JANOME SEWING MACHINE CO., LTD., Tokyo, JP;
Abstract
In a sewing machine, a switching mechanism is coupled to a slide arm of a transmission mechanism included in an upper feed mechanism. When the switching mechanism is operated, the slide arm is switched between a transmission state in which the driving force of a driving cam is transmitted to a feed link mechanism and a non-transmission state in which the driving force of the driving cam is not transmitted to the link mechanism. This allows the switching mechanism to switch the slide armA to the non-transmission state. This allows the operation of the feed link mechanism to be suspended, and allows the upper-lower movement of an upper feed dog to be suspended. Accordingly, this contributes to a reduction in vibration and noise in the sewing machine.