JPH0349072U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the state in which the bobbin thread bobbin case is removed from the rotary hook using the operating plate engagement claw, Fig. 2 is a perspective view of the engagement claw reciprocating tool, and Fig. 3 is a partially broken side view of the bobbin case storage tube. 4 is a front view of the bobbin case storage tube, and FIG. 5 is a perspective view showing a state in which the bobbin thread bobbin case is installed into the hook using the bobbin case storage tube. 1...Bobbin thread bobbin case, 2...Bobbin locking claw, 3...Bobbin locking claw operation plate, 4...Operation plate engagement claw, 5...Engagement claw reciprocating tool, 6...Hook, 7 ... Bobbin case storage tube, 8 ... Vertical hole, 9 ... Bobbin case pressing tool, 14 ... Vertical hole for advancing and retracting the column part of the bobbin case pressing tool, 16 ... External piston tool, 18 ... Rod Dress air cylinder, 20,
21, 22... Connecting metal fittings.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. While moving forward from the tip of the bobbin locking claw operation plate 3 of the bobbin thread bobbin case 1 installed in the hook 6 of the sewing machine, between the operation plate 3 and the front surface of the bobbin case main body. An engaging claw reciprocating tool 5 having an operating plate engaging claw 4 that can be pushed in and capable of moving the claw 4 forward, pushing in, and returning in response to an appropriate signal is installed at an appropriate front of the rotary hook 6 of the sewing machine. One part is provided so that the operation plate engaging claw 4 can be moved in response to an appropriate signal until it reaches a position on the side of the tip of the operation plate 3 where it can be advanced and pushed in, and then returned. An automatic take-out device for the bobbin case of a sewing machine, which is characterized by: 2 A vertical hole 8 having an inner diameter approximately equal to the outer diameter of a portion of the bobbin thread bobbin case 1 excluding the bobbin locking claw 2 and having a width slightly larger than the width of the bobbin locking claw 2 is formed in the tube wall. A large number of bobbin thread bobbin cases 1, which are long drilled from the tip and housed inside with bobbin locking claws 2 protruding into the vertical hole 8, are pushed from the rear of the tube and slid forward toward the tip of the tube. The bobbin case storage tube 7 is equipped with a bobbin case pressing tool 9 that can move forward and backward in response to an appropriate signal.
A sewing machine characterized in that a tube is provided at a suitable front part of the hook 6 of the sewing machine so that the tip of the tube can be moved to a position where it substantially contacts the front surface of the hook 6 and returned to the position in response to an appropriate signal. Automatic loading device for lower thread bobbin case. 3. An automatic exchange device for a bobbin thread bobbin case of a sewing machine, characterized in that the automatic removal device for a bobbin thread bobbin case of a sewing machine according to claim 1 is combined with the automatic mounting device for a bobbin thread bobbin case of a sewing machine according to claim 2. .