Table saw blade heel adjuster

• US 6,502,493 B1
• Filed: 06/27/2001
• Issued: 01/07/2003
• Est. Priority Date: 06/27/2001
• Status: Expired due to Fees

• Current Assignee: Home Depot USA Incorporated (The Home Depot, Inc.)
• Original Assignee: Emerson Electric Company
• Inventors: Eccardt, Curtis J., Hill, Jason E.
• Primary Examiner(s): Rachuba, M.
• Assistant Examiner(s): PRONE, JASON D
• Application Number:
  US09/892,584
• Publication Number:
  US 20030000359A1
• Time in Patent Office: 559 Days
• Field of Search: 834/771, 834/772, 834/73, 835/81, 834/77, 835/082, 834/713
• US Class Current: 83/473
• CPC Class Codes: B23D 45/068 the saw blade being adjustable according to depth or angle of cut B23D45/061, B23D45/065 take precedence
• CPC Class Codes: Y10T 83/7705 Adjustable angular relationship
• CPC Class Codes: Y10T 83/7726 By movement of the tool
• CPC Class Codes: Y10T 83/773 Work-support includes passageway for tool [e.g., slotted table]
• CPC Class Codes: Y10T 83/8773 Bevel or miter cut

Abstract

A table saw includes a work support table that defines a blade slot therethrough and at least one guide groove oriented generally parallel to the slot. A pair of trunnions are attached to the lower surface of the work support table, with at least one of the trunnions defining an adjustment opening having opposing sides. A cradle assembly has a blade mounted therein driven by a motor, and it is supported by the trunnions such that at least a portion of the blade extends through the slot in the work support surface. To provide adjustment of the blade heel, an adjustment member is received by the adjustment opening in the trunnion and is rotatably attached to the lower surface of the work support table. Rotation of the adjustment member causes the adjustment member to contact one of the opposing sides of the adjustment opening, thus moving the trunnion to adjust the position of the blade relative to the guide groove.

Claims

1. A table saw blade heel adjustment system, comprising:

a trunnion for supporting a table saw blade assembly relative to a work surface, the trunnion defining an adjustment opening extending therethrough, the adjustment opening defining generally opposing sides; and

an eccentric adjustment member received by the adjustment opening;

such that rotation of the eccentric member displaces the trunnion relative to the work surface, resulting in movement of the supported table saw blade assembly.

2. The table saw blade heel adjustment system of claim 1, wherein the eccentric adjustment member includes a first end defining an off-center bore extending therethrough.

3. The table saw blade heel adjustment system of claim 2, further comprising a shaft extending through the off-center bore such that the eccentric adjustment member is rotatable about the shaft.

4. The table saw blade heel adjustment system of claim 2, wherein the eccentric adjustment member includes a second end, and wherein the off-center bore extending through the first end also extends through the center of the second end.

5. The table saw blade heel adjustment system of claim 4, wherein the first and second ends are separated by a flange.

6. The table saw blade heel adjustment system of claim 2, wherein the eccentric adjustment member includes a second end coupled to the first end, the second end defining a bolt end.

7. The table saw blade heel adjustment system of claim 2, wherein the eccentric adjustment member includes a second end coupled to the first end, the second end defining an adjustment handle.

8. The table saw blade heel adjustment system of claim 1, wherein the adjustment opening is generally oval-shaped.

9. The table saw blade heel adjustment system of claim 1, wherein the adjustment opening is generally U-shaped.

10. A table saw, comprising:

a work support table having upper and lower surfaces, the work support table defining a slot therethrough, the upper surface defining at least one guide groove oriented generally parallel to the slot;

a pair of trunnions attached to the lower surface of the work support table, at least one of the trunnions defining an adjustment opening having opposing sides;

a cradle assembly having a blade mounted therein, the cradle assembly being supported by the trunnions such that at least a portion of the blade extends through the slot in the work support surface; and

an adjustment member received by the adjustment opening in the trunnion, the adjustment member being rotatably attached to the lower surface of the work support table;

such that rotation of the adjustment member causes the adjustment member to contact one of the opposing sides of the adjustment opening, thus moving the trunnion and the cradle assembly supported thereby to adjust the position of the blade relative to the guide groove.

11. The table saw of claim 10, wherein the adjustment member includes a first end received by the adjustment opening, the first end defining an off-center bore extending therethrough.

12. The table saw of claim 11, further comprising a shaft extending through the off-center bore, the shaft being attached to the work support table such that the adjustment member is rotatable about the shaft.

13. The table saw of claim 10, wherein the trunnion defines first and second side flanges, each flange defining a slot therethrough;

wherein bolts extend through the slots to attach the trunnion to the lower surface of the work support table.

14. The table saw of claim 11, wherein the adjustment member includes a second end, and wherein the off-center bore extending through the first end also extends through the center of the second end.

15. The table saw of claim 14, wherein the first and second ends are separated by a flange.

16. The table saw of claim 11, wherein the adjustment member includes a second end coupled to the first end, the second end defining a bolt end.

17. The table saw of claim 11, wherein the adjustment member includes a second end coupled to the first end, the second end defining an adjustment handle.

18. The table saw of claim 10, wherein the adjustment opening is generally oval-shaped.

19. The table saw of claim 10, wherein the adjustment opening is generally U-shaped.

20. A table saw blade heel adjustment system, comprising:

a trunnion for supporting a table saw blade assembly relative to a work surface, the trunnion defining an adjustment opening extending therethrough, the adjustment opening defining generally opposing sides; and

means received by the adjustment opening for moving the trunnion relative to the work surface, resulting in movement of the supported table saw blade assembly.