JPH0441372U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of this invention, and FIGS. 2a and 2b are partially longitudinal side views showing a positioning pin in the same embodiment, and FIG. 2a shows its protruding state. Figure b shows the immersed state. Fig. 3 is a block diagram showing the configuration of the control system of the above embodiment, Figs. 4a and 4b are views showing the workpiece holding member in the above embodiment, where Fig. 4a is a perspective view, and Fig. 4b is a workpiece mounting table. FIG. 5 is a flowchart showing the control operation of the above embodiment, FIG. 6 is a plan view showing another embodiment of this invention, and FIG. 7 is a further embodiment of this invention. FIG. 8 is a plan view showing another embodiment; FIG. 8 is a diagram showing the fabric constituting the air bag; FIG. 9 is a perspective view showing a schematic configuration of a conventional automatic sewing machine for sewing the air bag; FIG. 2B is a diagram showing a conventional work holding member; FIG. 1A is a perspective view, and FIG. In the figure, 11a, 11b 11c}...positioning pin,
13a, 13b, 13c}...Cylinder, 14a
, 14b...Moving arm, 15a, 15b...Engaging protrusion, 17...Upper frame, 18...Lower frame}
16... Frame, 20a, 21a... Engagement recess, 2
2...Microcomputer (control means).

Claims (1)

[Scope of Claim for Utility Model Registration] A workpiece consisting of a rectangular frame connected in a vertically openable and closable manner, with both frames holding the outside of the workpiece's intended sewing area from both the top and bottom surfaces of the workpiece. a holding member; engagement recesses provided in at least two locations on a lower plate of the workpiece holding member; and a support base that supports the holding member, the holding member being movable up and down and horizontally; a moving arm having a protruding engagement protrusion that can be fitted; a moving means for moving the moving arm in a horizontal direction; a lifting means for raising and lowering the moving arm; A positioning pin that is provided to be retractable, a retractable means for retracting and retracting the positioning pin, and a control means for operating the retractable and retractable positioning pin, and the positioning pin is configured to engage the engagement protrusion at the origin position. The control means is arranged at a position where it abuts at least two sides of the workpiece holding member when engaged, and the control means causes the positioning pin to protrude and move when the movable arm is stopped at the origin position. A workpiece positioning device characterized in that the projecting and retracting means is controlled so that the arm retracts when moving.