| 摘要 |
PURPOSE:To control the speedy feed and slow feed for each jig pallet in simple ways by installing an operating member which can operate an engaging member in free appearance and disappearance onto the jig pallet. CONSTITUTION:When the rear part of the second operating member 33 is deflected from the inclined shoulder part 24c of the first operating member 24, an engagement part 29a is sunk into the hole 10a on a jig pallet 10. In this state, the jig pallet 10 is speedily fed by the feed by a feeding chain conveyor 11, added with the feed by the revolution of a supporting roller 19 which contacts a rail member 20. When a knob 25 is pushed downwardly, the second operating member 33 returns to a left movement position, and the first operating member 24 does not return to an upward movement position. Since, in this state, the feed by the revolution of the supporting roller 19 does not act onto the jig pallet 10, even if the supporting roller 19 contacts the rail member 20 and is revolved, the jig pallet 10 is fed at the slow feeding speed of the feeding chain conveyor 11.
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