초록 ▼

Plant uprooting apparatus having a pair of jaws movable relatively to one another between open and closed positions in response to movements by a person of an actuating grip and linkage. The movement in one direction of the grip is limited so that the force that must be exerted by the person to main

Plant uprooting apparatus having a pair of jaws movable relatively to one another between open and closed positions in response to movements by a person of an actuating grip and linkage. The movement in one direction of the grip is limited so that the force that must be exerted by the person to maintain the jaws in their closed position is minimal.

대표청구항 ▼

Apparatus adapted for the uprooting of a plant comprising an elongate support terminating at one end in a first jaw and at its opposite end in a handle; a second jaw; means mounting said second jaw on said support for relative movements of said jaws between a first, open position and a second, plant

Apparatus adapted for the uprooting of a plant comprising an elongate support terminating at one end in a first jaw and at its opposite end in a handle; a second jaw; means mounting said second jaw on said support for relative movements of said jaws between a first, open position and a second, plant gripping position; and actuating means for effecting said movements of said jaws, said actuating means comprising a grip, a link pivoted to said handle at a first point and to said grip at a second point, said grip being pivoted to a crank at a third point and said crank being pivoted to said handle at a fourth point, and force transmitting means coupling said second jaw to said crank, said actuating means being responsive to the application of force on said grip to move it in a direction toward said handle to rock said link and crank about the respective pivot points and enable said force transmitting means to move said jaws from said first position toward said second position, said pivot points being so positioned relative to one another that when said jaws are in their second position the force required to be exerted on said grip to maintain said jaws in said second position is minimal.