| 摘要 |
A trap for rodents, possums, etc. has a striker (20) for hitting the back of an animal attracted by bait (33). The striker pivots on frame (21) via axle (23). Coiled biasing springs (24) are attached to the trap at points (25) and to the striker at points (26). When in the set position (shown), these points of attachment are aligned with pivot points (22). This unstable position is maintained because the weight of the trip mechanism (27) is supported by the attraction of magnet (29) for part (30). When an animal contacts trip mechanism (27) it presses on item (28), rotating axle (23), and freeing the magnet. The springs now shorten, activating the trap, as the points (26, 22, and 25) are no longer aligned. Alternatively, a catch is held in a notch in a trip lever which also carries the bait. A housing may be used to confine an animal taking the bait. |
