| 摘要 |
<p>Disclosed herein is a soil aerating device including a cylindrical drum having an outer peripheral wall and rotatably mounted on a frame for rolling travel over the surface of the ground or turf to be aerated and a plurality of core-forming elements or tines mounted on the exterior of the peripheral wall for removing plugs or cores of earth and depositing same in the interior of the drum as the drum is rolled over the surface of the ground or turf. A portion of the peripheral wall is formed by a trap door hingedly mounted on the drum and releasably held in the closed position by a pair of latch arms, each including a notch for receiving a respective locking pin on the trap door and carried on a shaft member mounted on the drum for rotation about an axis parallel to the drum axis. A drive member mounted on the frame for rotation about a fixed axis and for axial movement relative to the drum between a retracted position and an extended position to drivingly engage one end of the shaft member is operable for selectively preventing rotation of the drum and for selectively moving the latch arms to an unlatching position to permit opening of the trap door.</p> |
