초록 ▼

An improved hand rasp comprises a planar plate with an anterior surface and an opposing posterior surface. An ergonomic handle is affixed to the anterior surface of the plate. A groove blade is removably affixed to the posterior surface of the plate by attachment means. The groove blade may have a v

An improved hand rasp comprises a planar plate with an anterior surface and an opposing posterior surface. An ergonomic handle is affixed to the anterior surface of the plate. A groove blade is removably affixed to the posterior surface of the plate by attachment means. The groove blade may have a variety of geometric configurations and varying in width and depth to accommodate the imagination of the user or designer. The groove blade includes an abrasive surface on the exterior surface of the groove blade. A guide is also removably affixed to the posterior surface of the plate by attachment means, positioned parallel to the groove blade. The guide is adjustable about apertures formed in the plate to position the guide closer to or farther away from the groove blade.

대표청구항 ▼

1. A hand rasp for scoring construction material comprising:a planar plate comprising an anterior surface opposite a posterior surface;a handle affixed to said anterior surface;a groove blade affixed to said posterior surface, said blade comprising an elongated body having an abrasive exterior surfa

1. A hand rasp for scoring construction material comprising:a planar plate comprising an anterior surface opposite a posterior surface;a handle affixed to said anterior surface;a groove blade affixed to said posterior surface, said blade comprising an elongated body having an abrasive exterior surface for scoring said construction material; anda removable and adjustable guide affixed to said posterior surface, said guide positioned parallel to said blade in a spaced apart relationship.2. The hand rasp of claim 1, wherein said plate further comprises a plurality of hashes on said posterior surface.3. The hand rasp of claim 2, wherein said plurality of hashes are incrementally spaced and appropriately labeled by a plurality of measurement standards, said plurality of measurement standards comprising millimeters, centimeters and inches.4. The hand rasp of claim 3, wherein said plurality of hashes allow uniform adjustment of said guide in relation to said blade.5. The hand rasp of claim 1, wherein said handle is ergonomic for comfort and control of said hand rasp.6. The hand rasp of claim 1, wherein said blade comprises a plurality of geometric configurations interchangeably affixed to said plate, said plurality of geometric configurations providing variable scoring aesthetics.7. The hand rasp of claim 6, wherein said plurality of geometric configurations comprises a triangulated exterior surface for scoring a V-shaped groove in said construction material.8. The hand rasp of claim 6, wherein said plurality of geometric configurations comprises an arcuate exterior surface for scoring a U-shaped groove in said construction material.9. The hand rasp of claim 8, wherein said arcuate exterior surface comprises an angular recess at one terminal end of said blade to initiate scoring of said construction material.10. The hand rasp of claim 6, wherein said plurality of geometric configurations comprises an orthogonal exterior surface for scoring an orthogonal-shaped groove in said construction material.11. The hand rasp of claim 10, wherein said orthogonal exterior surface comprises an angular recess at one terminal end of said blade to initiate scoring of said construction material.12. The hand rasp of claim 6, wherein said plurality of geometric configurations comprises a trapezoidal exterior surface for scoring a trapezoidal-shaped groove in said construction material.13. The hand rasp of claim 12, wherein said trapezoidal exterior surface comprises an angular recess at one terminal end of said blade to initiate scoring of said construction material.14. The hand rasp of claim 6, wherein said plurality of geometric configurations comprises a beveled exterior surface for scoring a rhomboidal-shaped groove in said construction material.15. The hand rasp of claim 14, wherein said trapezoidal exterior surface comprises an angular recess at one terminal end of said blade to initiate scoring of said construction material.16. The hand rasp of claim 6, wherein said blade is affixed to said plate by a plurality of attachment means inserted through a plurality of apertures formed in said plate and secured therein.17. The hand rasp of claim 1, wherein said guide is affixed to said plate by a plurality of attachment means inserted through a plurality of apertures formed in said plate and secured therein.18. The hand rasp of claim 17, wherein said guide comprises an L-shaped body.19. The hand rasp of claim 17, wherein said guide comprises an I-shaped body.20. The hand rasp of claim 17, wherein said guide is removable, said hand rasp guided by a straight-edged apparatus.