Title:
FEED MECHANISM OF FEED-OFF-ARM TYPE SEWING MACHINE
Document Type and Number:
Japanese Patent JP2015023911
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a feed mechanism of a feed-off-arm type sewing machine by which, even when two right and left pieces of cloth to be sewn together are different in thickness or material, or even when a curved part is sewn, the two right and left pieces of cloth can be appropriately fed so that the finish of sewing desired by an operator is achieved.SOLUTION: A feed mechanism 6 transfers cloth placed on a cylinder 1 in a cloth feed direction F by a main feed dog 19, a first differential feed dog 20 and a second differential feed dog 21 which are each elliptically moved in a vertical plane along the cloth feed direction F in synchronization with a main shaft. The feed mechanism 6 includes a first differential feed amount adjustment mechanism 61 for changing and adjusting the amount of the forward and backward movement of the first differential feed dog 20 per rotation of the main shaft (hereinafter, referred to as a first differential feed amount). In addition, the feed mechanism 6 includes a second differential feed amount adjustment mechanism 71 for changing and adjusting the amount of the forward and backward movement of the second differential feed dog 21 per rotation of the main shaft (hereinafter, referred to as a second differential feed amount).
Inventors:
MUKAI HIROCHIKA
BANDO SUSUMU
HISAHARA TOSHIO
OKADA KOICHI
NAKADA KENICHI
TOME FUMIO
ASAHINA MASAKI
BANDO SUSUMU
HISAHARA TOSHIO
OKADA KOICHI
NAKADA KENICHI
TOME FUMIO
ASAHINA MASAKI
Application Number:
JP2013153782A
Publication Date:
February 05, 2015
Filing Date:
July 24, 2013
Export Citation:
Assignee:
PEGASUS SEWING MACHINE MFG CO
International Classes:
D05B27/08; D05B73/06
Domestic Patent References:
| JPH02140187A | 1990-05-29 | |||
| JP3178831U | 2012-10-04 | |||
| JP2012179091A | 2012-09-20 | |||
| JPS5545428A | 1980-03-31 |