Having Material Controlled Stop Patents (Class 242/484.8)
  • Patent number: 11834293
    Abstract: A bobbin loader apparatus and method includes a bobbin connected with a first motor. A thread holder is connected with a second motor where the thread holder is configured to hold thread. A thread guide is connected with a third motor where the thread guide directs thread from the thread holder to the bobbin. A motor controller is connected with the first motor, the second motor and the third motor where the motor controller operates the first motor to turn the bobbin in a first direction and the second motor to turn the thread holder in a second direction such that tension is applied to the thread as thread is added to the bobbin.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: December 5, 2023
    Inventors: John D. Martelli, Chris Beaty
  • Patent number: 10443168
    Abstract: A sewing machine includes an arm portion, a thread spool mounting portion, a bobbin winder, a first guide portion, a second guide portion, and a partition wall member. The arm portion is provided with a drive shaft extending in a first direction. The thread spool mounting portion includes a thread spool pin to be inserted through a through hole of a thread spool. The bobbin winder is provided further to one end side of the arm portion than the thread spool mounting portion. The first guide portion is provided further to another end side of the arm portion than the thread spool mounting portion. The second guide portion is provided further to another end side in the first direction of the arm portion than the first guide portion. The partition wall member is disposed between the thread spool pin and the first guide portion in a second direction.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: October 15, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Shinya Fujihara
  • Publication number: 20090050039
    Abstract: A bobbin thread winder mounted in an arm of a sewing machine to wind thread from thread supply onto a bobbin includes a thread winding shaft to which the bobbin is set and which is rotated by a timing pulley, a thread winding shaft gear attached to an end side of the shaft and having a first gear portion rotatable coaxially with the shaft, a second gear portion formed integrally on the timing pulley so as to be mesh-engageable with the first gear portion, and a torque limiter mechanism transmitting rotation of the shaft gear to the shaft when load exerted on the shaft is below a predetermined value, the torque limiter mechanism cutting off transmission of rotation of the shaft gear so that rotation of the shaft gear is prevented from being transmitted to the shaft when load exerted on the shaft is not less than the predetermined value.
    Type: Application
    Filed: May 14, 2008
    Publication date: February 26, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Munehiro Wakazono
  • Patent number: 7325766
    Abstract: A housing has major and minor surfaces creating major and minor chambers. A motor secured within the minor chamber has a drive shaft extending upwardly through the minor surface. A power source is within the major chamber. Electrical components control the motor.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: February 5, 2008
    Inventor: Robert J. Schunck