Interlocking routed joint
OwnerKenneth M. Grisleyinventor
Life of this patent
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Abstract
An interlocking joint for joining two panels together has curved jigsaw shaped indents and protrusions on edges of both panels that fit together and cannot pull apart. The indents and protrusions are cut by a router with a straight sided cutter. A template is provided for guiding a bushing on a cutter shaft of a router and the template takes into account the bushing having a larger diameter than the cutter. There is also a jig provided that has fingers that are asembled to cut out the interlocking joint with a router.
Claims20
An interlocking joint for joining two panels together comprising:
- two panels having edges to be joined, the edges of both panels having curved jigsaw puzzle shaped protrusions with curved jigsaw puzzle shaped indents between the protrusions, such that the protrusions and indents on the edge of one panel interlock with the indents and protrusions on the edge of the other panel, the sides of the protrusions being substantially perpendicular to surface faces of the protrusions.
A method of forming a joint for joining two wooden boards together, comprising:
- cutting curved jigsaw puzzle shaped protrusions with adjacent indents between the protrusions along an edge of a first panel,
- cutting curved jigsaw puzzle shaped indents with adjacent protrusions between the indents along an edge of a second panel so that the protrusions and adjacent indents along the edge of the first panel interlock with the indents and adjacent protrusions along the edge of the second panel, the sides of the protrusions being substantially perpendicular to surface faces of the protrusions.
A template for supporting and guiding a router to cut joint members in panels to form an interlocking joint, the template comprising:
- a form having one side with curved jigsaw puzzle shaped indents with protrusions between the indents, the protrusions and indents in line to form a jigsaw shape, the protrusions being smaller than the indents by a dimension representing a difference in radius between a router bushing and a router cutter, the router bushing having a larger diameter than the router cutter, the template adapted to permit cutting jigsaw puzzle shaped protrusions and indents in the panels t at are of the same size when the router bushing follows the template side.
A jig for supporting and guiding a router to cut joint members in work pieces to form an interlocking joint comprising:
- a plurality of fingers with first fingers each having an S-shaped end interspaced with second fingers each having a reversed S-shaped end to form a plurality of curved jigsaw puzzle shaped protrusions with indents between the protrusions,
- means to clamp the fingers in line, and
- guide means to guide a router with a straight sided cutter to follow the curved jigsaw puzzle shaped protrusions and indents formed by the fingers.
Dependencies are inferred from the claim text.