| 摘要 |
<p>An animal feeding pen (3) for one animal comprises a pair of side walls (1) and (2) which define an entrance (4). A closure frame (7) pivotally connected to the side walls (1, 2) is pivotal by a hoist (9, 11, 14, 15) from a downward closed position closing the pen (3), to an upward open position. A lever (16) extending from the closure frame (7) engages a pivotal latch (18) for releasably retaining the closure frame (7) in the open position. A trip frame (22) is pivotally suspended in the pen (3) for engagement by an animal. A lug (23) on the trip frame (22) engages the latch (18) for pivoting the latch (18) for disengaging the lever (16) as the animal enters the pen, thereby closing the closure frame (7).</p> |
