Method and apparatus for refurbishing an oscillating multi-tool blade
AssigneeSwealand Hus & Fasadteknik AB
InventorsNicklas GUSTAFSSON, Richard SUNDGREN
Life of this patent
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Abstract
A method and apparatus for refurbishing an oscillating multi-tool blade (10) having a serrated forward end. The blade (10) is clamped to a support surface, a new serrated end is formed by cutting away an edge portion of the serrated end, the blade (10) is moved across a cutting direction so far as tips of teeth (12) of the new serrated end will be cut away during a following renewed cut, and the renewed cut is performed.
Claims15
A method of refurbishing an oscillating multi-tool blade (10) having a serrated forward end, the method comprising steps of:
- clamping the blade (10) to a support member (60);
- cutting a new serrated end by cutting away an edge portion of the serrated end;
- moving the blade (10) by a second eccentric shaft portion (112) across a cutting direction so far as tips of teeth (12) of the new serrated end will be cut away during a following renewed cut;
- and
- performing the renewed cut, whereby
- by cutting away the edge portion in two steps and moving the blade laterally between the steps, where the blade may be clamped during this movement, the tips of the resulting teeth will be very sharp as these tips are then not shaped by inevitably rounded tips of the cutting tool but shaped in two occasions by intersecting straight edges of the cutting tool.
(canceled)
A cutting apparatus for refurbishing an oscillating multi-tool blade (10) having a serrated forward end, the cutting apparatus comprising:
- a clamping mechanism (70) including clamping and support members (76, 60) for clamping the blade (10) therebetween;
- cutting tooling (20, 40) for cutting a new serrated end by cutting away an edge portion of the serrated forward end;
- and
- a mechanism (110) for moving the clamping and support members (76, 60) and the blade (10) clamped therebetween across a cutting direction so far as tips of teeth (12) of the new serrated end will be cut away during a following renewed cut,
- said mechanism (110) comprising an eccentric end portion (112) of a shaft (113) journaled to a support structure (102) and rotated by a handle (114) to either one of two predetermined end portions defined by two releasable locking pins (118), wherein
- by cutting away the edge portion in two steps and moving the blade laterally between the steps, where the blade is clamped during this movement, the tips of the resulting teeth will be very sharp as these are then not shaped by inevitably rounded tips of the cutting tool but shaped in two occasions by intersecting straight edges of the cutting tool.
Dependencies are inferred from the claim text.