JPH0349067U - - Google Patents

Description

[Brief explanation of drawings]

The drawings show the embodiments of the present invention, and the drawings show the first embodiment.
The figure is an external view of a sewing machine equipped with the device of the present invention.
The figure is an external view showing a part of the mechanism of the sewing machine equipped with the device of the present invention, Figure 3 is a perspective view showing a part of the internal mechanism of the sewing machine equipped with the device of the present invention, and Figure 4 is the embroidery frame drive of the device of the present invention. A perspective view showing the mechanism, FIG. 5 is a plan view of the main part of the device of the present invention, FIG. 6 is a partial side view of the main part of the device of the invention shown in FIG. 5, and FIG. 7 is a specification of the device of the present invention. FIG. 8 is a plan view of the main parts showing the specific state of the device of the present invention. FIG. 9 is a block diagram of the device of the present invention.
is a feed dog, 8 is a needle bar supporter, 9 is an amplitude rod, 1
0 is a first control motor, 12 is a lateral swing arm, 16 is a tension spring, 17 is a solenoid, 20 is a stopper pin, 21 is a stopper, 22 is an amplitude rod stopper, 26 is a carriage, and 28 is an X-direction drive mechanism.

Claims (1)

[Scope of utility model registration request] A drive shaft rotatably supported within the arm machine frame of a sewing machine; a needle bar support body supporting a needle bar that moves up and down in conjunction with the rotation of the drive shaft and pivotably mounted; an amplitude rod whose one end is connected to the needle bar support and transmits rotation of the control drive section; and an amplitude rod fixed to the shaft of the control drive section and installed in a groove formed in the radial direction of the shaft. A horizontal swing arm has a shaft fixed to the other end and is fitted in a slidable manner, and the arm is disposed within the bed frame of the sewing machine and moves the cloth forward or backward in conjunction with the rotation of the drive shaft. a feeding device that moves a feeding dog for feeding; an embroidery frame consisting of an outer frame and an inner frame on which cloth is removably stretched;
a carriage for removably fixing the embroidery frame;
In a compound sewing machine equipped with an X-direction drive mechanism that drives the carriage in the X-direction and a Y-direction drive mechanism that drives the carriage in the Y-direction, the movement of the carriage is stopped and the feed device is driven. disabling the sewing and feeding movements of the feeding device;
a selection device that drives the carriage to enable operation of only one of the embroidery stitches;
a tension spring that always urges a shaft portion, which has one end locked to the amplitude rod and is fixed to the other end of the amplitude rod, in a direction away from the center of the control drive section within a groove in the lateral swing arm; a solenoid with a tension rod attached to the rod and, when energized, moving a shaft portion fixed to the other end of the swing rod against the action of the tension spring to the center position of the rotation axis of the control drive unit;
a stopper that engages a stopper pin fixed at an appropriate position on the amplitude rod when the solenoid is activated to stop the rotation of the amplitude rod; and a stopper that is moved by the bias of the tension spring when the solenoid is not activated. A safety device for a compound sewing machine equipped with a switching type control drive unit, characterized in that it is provided with an amplitude rod stopper formed by both left and right frames into which stopper pins are inserted.