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:
Feb. 16, 2021
Filed:
Jan. 29, 2018
Janome Sewing Machine Co., Ltd., Tokyo, JP;
Shuzo Morimoto, Tokyo, JP;
Jun Mafune, Tokyo, JP;
JANOME SEWING MACHINE CO., LTD., Tokyo, JP;
Abstract
A needle baris supported by a needle bar supporter in a manner freely movable up and down relative to a frame. A crankis fixed to an upper shaft, rotates with the upper shaft, and an output end thereof moves circularly. A crank rodis connected to the crankin a freely rotatable manner. A connection rodis connected to an intermediate portion of the crank rodin a freely rotatable manner, and is connected to the needle barin a freely rotatable manner. A length of the needle barand a length from a connecting position of the connection rodand the crank rodto a sliderdiffer. When the crankcircularly moves, the connecting position of the connection rodand the crank roddraws a trajectory of an ellipse.