| 摘要 |
<p>A board feeder (10) is described for loading boards (11) one at a time from a feed station (12) to a delivery station (13). The individual boards (11) are gripped on opposite horizontal surfaces, lifted over a stop (23), and deposited at the delivery station. Clamp members (24,25) are situated on opposite horizontal board sides for moving together to grip the board and for movement between the feed station (12) and the delivery station (13). A top clamp member (24) moves in an arc back and forth over the stations and stop. A bottom clamp member (25) moves in a closed curve matching the stroke of the top clamp arc. A top part of the closed path represents a delivery stroke starting at the feed station and passing over the stop (23). The top part of the path ends at the delivery station. The remainder of the top clamp path is a return stroke situated below the stop (23) and stations.</p> |
