| 摘要 |
<p>A pet door (10 min ) has a frame member (11 min ) with a laterally-projecting tunnel formation (22 min ) together defining a portal through which a pet may pass. A top-hung flap (14) is located in the portal for closing the portal, the flap being displaceable in one or other of two directions by a pet, to enable the pet to pass through the door (10 min ) in one direction or the other. The tunnel formation provides a ledge (31) which confronts the bottom edge of the flap (14) when the latter is displaced in at least one opening direction, the frame member (11 min ) defining a step down (30) which disposes the ledge (31) sufficiently spaced beneath the flap bottom edge when the flap is displaced in the said direction as to ensure that a pet's paw cannot become trapped and jammed between the flap edge and the ledge (31).</p> |
