Spading fork
OwnerTimothy C. Dearmaninventor
Life of this patent
Estimating the term…
Abstract
A spading tool for use by persons who are unable or prefer not to bend over when uprooting weeds and other material has an elongate handle at the lower end of which is hinged a multiple-tine fork adapted to be embedded in the ground adjacent a weed to be uprooted. A ratcheting latch device enables the fork to be moved from an initial position in prolongation of the handle to an adjusted, angular position by rocking the handle back and forth. Such movement of the fork effects lifting of the weed out of the ground for disposal. The latch device may be disabled by movement of a remote release lever whereupon a return spring forcibly returns the fork to the initial position ready for further use.
Claims12
A manual tool for uprooting plants from the ground and working soil, comprising:
- a spade member adapted to be imbedded in the ground;
- an elongate main handle having a longitudinal axis;
- hinge means interconnecting said spade member and said handle for enabling said spade member to pivot about an axis relative to said handle from an initial position in which the spade member extends in prolongation of said handle generally along said longitudinal axis to a selected one of a plurality of adjusted positions relative to said handle;
- ratchet means for advancing said spade member from said initial position to a selected one of said adjusted positions in response to back and forth rocking movements of said handle;
- latch means for releasably locking said spade member in said selected position of adjustment;
- release means for disabling said latch means;
- and
- return mans constantly biasing said spade member toward said initial position for automatically returning said spade member to said initial position in response to disabling said latch means;
- said ratchet means including a ratchet plate having a plurality of directional ratchet teeth arranged along an arc having said pivot axis of said hinge means as its center, said latch means including a pawl engageable with successive ones of said ratchet teeth for enabling pivotal movement of said spade member in one direction and locking said spade member against reverse pivotal movement;
- and
- a spring acting on said pawl for continuously and forcibly urging said pawl toward engagement with said ratchet teeth, said latch means including a pivot pin defining a pivot axis and wherein said spring comprises a torsion spring supported on said pivot pin and reacting between said pawl and said extension arm for continuously urging said pawl toward rotation about said pivot axis into engagement with said ratchet teeth.
A manual tool for uprooting plants from the ground and working soil, comprising:
- a spade member adapted to be imbedded in the ground;
- an elongate main handle having a longitudinal axis;
- hinge means including a hinge pin defining a pivot axis and interconnecting said spade member and said handle for enabling said spade member to pivot about said pivot axis relative to said handle from an initial position in which the spade member extends in prolongation of said handle generally along said longitudinal axis to a selected one of a plurality of angularly adjusted positions relative to said handle;
- ratchet means for advancing said spade member from said initial position to a selected one of said adjusted positions in response to back and forth pivotal movements of said handle;
- latch means for releasably locking said spade member in said selected position of adjustment;
- release means for disabling said latch means;
- and
- return means comprising a torsion spring encircling said hinge pin and reacting with constant biasing force between said main handle at a level above that of said hinge axis and said spade member at a level below that of said hinge axis so as constantly to bias said spade member toward said initial position for automatically returning said spade member to said initial position in response to disabling said latch means.
Dependencies are inferred from the claim text.