| 摘要 |
A mango-pod extractor has a cutter 3 with a one-piece wall 4 of elongate tubular form of oval cross-section and having curved cutting-edges 12 for piercing the mango M. The wall 4 is expandable resiliently in the minor-axis dimension for close conformal cutting over the surface of the pod P within the pierced mango M. A transverse spindle 9 in the minor-axis dimension slides in slots 7,8 lengthwise of the wall 4, and carries springs 11 that squeeze front and back faces 5,6 of the wall 4 in towards one another against the resilience of the wall 4. The spindle 9 moves up the slots 7,8 as piercing progresses, allowing the wall 4 to expand resiliently round the pod P for retention of it within the cutter 3 upon withdrawal from the mango M. Sliding of the spindle 9 down the slots 7,8 discharges the pod P. Instead of a one-piece construction, the wall 4 may be replaced by bowed shells that are urged resiliently towards mutual abutment along their longitudinal edges. |
