Ykk Corporation

Taishin Kameda

Satoshi Matsumura

Yoshiyuki Toishi

Tsuneo Takamura

Tatsuo Ito

This invention relates to a coupling condition detecting device for element rows of a slide fastener. A chain stopping means for stopping a chain at a detecting position of coupling right and left elements adjacent an upstream end of a space in the chain is disposed downstream along a chain carrying direction. A detecting portion having a mechanical detecting means for detecting presence/absence of a deviation in coupling of the elements is provided at the detecting position. The detecting portion has an element position detection member movable between a normal first contact position where the detection member does not contact any elements and an abnormal second contact position where it contacts an element. When the detection member exists at the first contact position when the chain is stopped, it is determined that the coupling is normal and when the detection member exists at the second contact position, it is determined that the coupling is abnormal.

Coupling condition detecting device for slide fastener element rows

There are provided left and right gripper devices for holding left and right tip side portions of a slide fastener chain, transferring the fastener chain in a longitudinal direction (an X-axis direction) and opening and closing the left and right tip side portions in a Y-axis direction orthogonal to the X-axis direction based on a command sent from operation control means. There is provided an electric motor for controllably driving the left and right gripper devices in the X-Y axis direction based on a command sent from a numeric control section of the operation control means in the X-Y axis direction of the gripper devices. A slider can be automatically inserted by only a specified operation using a single device without preparing a special device for all types of fastener chains and sliders and requiring a time for a considerable reconstruction.

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Toyama-ken, Japan

Taishin Kameda