TABLE SAW WITH DUST SHIELD

• US 20110048205A1
• Filed: 08/26/2009
• Published: 03/03/2011
• Est. Priority Date: 08/26/2009
• Status: Active Grant

• Current Assignee: Credo Technology Corporation (Robert Bosch GmbH), Robert Bosch GmbH
• Original Assignee: Credo Technology Corporation (Robert Bosch GmbH), Robert Bosch GmbH
• Inventors: Chung, Brian Hyuk Joon
• Granted Patent: US 10,076,796 B2
• Time in Patent Office: Days
• US Class Current: 83/477.2
• CPC Class Codes: B23D 45/066 the pivoted lever being mounted on a carriage
• CPC Class Codes: B23D 45/067 the saw blade being adjustable according to depth or angle of cut
• CPC Class Codes: B23D 47/00 Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts constructional features of these parts per se B23Q; details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00
• CPC Class Codes: B23D 47/08 of devices for bringing the circular saw blade to the workpiece or removing same therefrom
• CPC Class Codes: B23D 59/006 for removing or collecting chips
• CPC Class Codes: B23Q 11/0042 Devices for removing chips B23Q11/02, B23Q11/0875 take precedence
• CPC Class Codes: B23Q 11/0046 by sucking
• CPC Class Codes: B23Q 11/06 Safety devices for circular cutters
• CPC Class Codes: Y02P 70/10 Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
• CPC Class Codes: Y10T 83/081 With randomly actuated stopping means
• CPC Class Codes: Y10T 83/089 Responsive to tool characteristic
• CPC Class Codes: Y10T 83/773 Work-support includes passageway for tool [e.g., slotted table]
• CPC Class Codes: Y10T 83/7734 With guard for tool
• CPC Class Codes: Y10T 83/8722 Static

Abstract

A table saw in one embodiment includes a motor, a blade operably connected to the motor, at least a portion of the blade positioned within an enclosure, and a dust plate extending within the enclosure and positioned between the at least a portion of the blade and the motor.

Claims

1. A table saw, comprising:

a motor;

a blade operably connected to the motor, at least a portion of the blade positioned within an enclosure;

a dust plate extending within the enclosure and positioned between the at least a portion of the blade and the motor.

2. The table saw of claim 1, wherein the dust plate has a blade facing side and a side opposite to the blade facing side, the table saw further comprising:

a dust collection port configured to vent a portion of the enclosure bounded at least in part by the blade facing side.

3. The table saw of claim 1, wherein the dust plate divides the enclosure into a mechanism portion and a blade portion, the at least a portion of the blade positioned within the blade portion.

4. The table saw of claim 3, further comprising:

a swing arm pivotable about a pivot along a swing arm path between a first swing arm position within the mechanism portion and a second swing arm position within the mechanism portion;

a latch pin movable between a first latch pin position whereat the swing arm is maintained in the first swing arm position and a second latch pin position whereat the swing arm is not maintained in the first swing arm position; and

a control system configured to control an actuating device to transfer a force to the swing arm when the swing arm is maintained at the first swing arm position sufficient to move the latch pin from the first latch pin position to the second latch pin position.

5. The table saw of claim 4, wherein the blade is supported by an arbor shaft extending through an arbor shaft slot in the dust plate.

6. The table saw of claim 5, further comprising:

a dust curtain extending within the slot.

7. The table saw of claim 6, wherein the dust curtain comprises a plurality of bristles.

8. The table saw of claim 6, wherein the dust curtain comprises a plurality of interconnected plates.

9. The table saw of claim 4, wherein the pressure within the mechanism portion is higher than the pressure within the blade portion during operation of the table saw.

10. A table saw, comprising:

a motor;

an enclosure;

a dust plate substantially dividing the enclosure into a mechanism portion and a blade portion; and

a blade operably connected to the motor, at least a portion of the blade positioned within the blade portion.

11. The table saw of claim 10, further comprising:

a dust collection port configured to vent the blade portion.

12. The table saw of claim 10, further comprising:

a shaft slot in the dust plate;

a swing arm movable along a swing arm path from a first swing arm position within the mechanism portion and a second swing arm position within the mechanism portion;

an arbor shaft extending from the swing arm through the shaft slot and supporting the blade;

a latch pin movable between a first latch pin position whereat the swing arm is maintained in the first swing arm position and a second latch pin position whereat the swing arm is not maintained in the first swing arm position; and

a control system configured to control an actuating device to cause the latch pin to move from the first latch pin position to the second latch pin position.

13. The table saw of claim 12, further comprising:

a dust curtain extending within the slot.

14. The table saw of claim 13, wherein the dust curtain comprises a plurality of bristles.

15. The table saw of claim 13, wherein the dust curtain comprises a plurality of interconnected plates.

16. The table saw of claim 12, wherein the pressure within the mechanism portion is higher than the pressure within the blade portion during operation of the table saw.

17. The table saw of claim 12, wherein the shaft slot has an upper portion and a lower portion, the lower portion of the slot wider than the upper portion of the slot.