| 摘要 |
<p>A bale tying mechanism is driven through a clutch that is controlled by a trip mechanism that actuates the clutch when the bale reaches a certain size. The trip mechanism includes a trip arm that swings between a stop position, that is established by an adjustable stop on the trip arm, and an upward, trip position, wherein it causes engagement of the clutch and the actuation of the tying mechanism. The arm drops from its trip position to its stop position after engagement of the clutch and is swung upwardly from the stop position to the trip position for engagement by a wheel that is rotated in response to increasing length of a bale, the wheel disengaging the arm initially after the trip arm causes the actuation of the clutch to permit the arm to drop against the stop. A latching device is provided between the wheel and the stop to prevent the arm from bouncing off the stop until it is engaged by the wheel.</p> |
