TRANSPARENT BASE FOR ROUTER

• US 3,581,787 A
• Filed: 08/01/1969
• Issued: 06/01/1971
• Est. Priority Date: 08/01/1969
• Status: Expired due to Term

• Current Assignee: Porter-Cable Corporation (Stanley Black & Decker, Inc.)
• Original Assignee: John H. Bane
• Inventors: Bane, John H.
• Application Number:
  US04/846,826
• Time in Patent Office: 669 Days
• US Class Current: 144/154.5
• CPC Class Codes: B27C 5/10 Portable hand-operated wood-milling machines; Routers
• CPC Class Codes: Y10T 409/306384 with work supported guide means
• CPC Class Codes: Y10T 409/306608 End mill [e.g., router, etc.]

Abstract

A router comprising a transparent, abrasion resistant, subbase having ribbed sections which engage the workpiece and recessed viewing sections which do not contact the workpiece. The recessed sections function as unabraded and unscratched vision areas which provide an operator with an undistorted view of the cutting action of the tool on the workpiece.

Claims

1. A router comprising a motor, a motor mounted cutting tool, a support base assembly adjustably connected to said motor, said base assembly comprising a baseplate formed of transparent abrasion resistant material having a through opening for passing the cutting tool into cutting position below the plate and dependent, spaced workpiece engaging rib portions on the underface delimiting nonworkpiece engaging see-through portions operable during the operation of the router to expose the cutting tool'"'"''"'"'s engagement with the workpiece to the view of the operator thereby permitting the operator to clearly view the cutting operation and guide the router in its cutting operation.

2. A router as defined in claim 1, wherein certain of said workpiece engaging rib portions are disposed in close encircling relation to said cutting tool.

3. A router as defined in claim 2, wherein said baseplate is circular, others of said workpiece engaging rib portions extend radially from said encircling workpiece engaging rib portions and still others extend arcuately arounD the periphery of said plate.

4. A router as defined in claim 2, wherein said baseplate is circular and the others of said rib portions are arcuate and located along various radii about the axis of said plate.

5. A router as defined in claim 2, wherein said baseplate radially outwardly from said certain workpiece engaging rib portions is provided with arcuate through opening defining means for increasing the chip removal capabilities of the router.

6. A router work engaging baseplate for removable association with the supporting base ring of a conventional support base assembly comprising a plate formed of transparent abrasion resistant material having a through opening for passing the conventional cutting tool, dependent spaced workpiece engaging rib portions on the underface delimiting nonworkpiece engaging see through portions arranged to expose to the operator'"'"''"'"'s view the line of cut of the cutting tool permitting the operator to clearly view the cutting operation during use of a router fitted with said baseplate, and means including respective through screw openings disposed in angularly spaced peripheral marginal areas of said baseplate for attaching said baseplate to said supporting base ring.

7. The baseplate of claim 6 wherein said through opening is at least partially encircled by dependent rib portions disposed to have bearing contact with the workpiece adjacent the line of cut of the cutting tool.

8. The baseplate of claim 7 wherein the remaining dependent rib portions are of arcuate configuration disposed in respective angularly spaced sets along respectively different radii outwardly of said encircling dependent rib portions.

9. The baseplate of claim 7 wherein the remaining dependent rib portions comprise equiangularly spaced radially directed ribs extending from the encircling dependent rib portions to the plate periphery and respective arcuate rib portions angularly spaced along the peripheral margins of said plate periphery between the outer ends of said radially directed ribs.