TABLE SAW WITH ACTUATOR RESET MECHANISM

• US 20110048204A1
• 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 8,186,258 B2
• Time in Patent Office: Days
• US Class Current: 83/477.1
• CPC Class Codes: B23D 45/067 the saw blade being adjustable according to depth or angle of cut
• CPC Class Codes: B23D 59/002 for the position of the saw blade mounting for swiveling or tilting a circular saw blade B27B5/36; portable power-driven circular saws with adjustment for cutting depth or amount of tilting B27B9/02
• CPC Class Codes: B27B 5/243 the saw blade being arranged underneath the work-table the circular saw blade arranged underneath a stationary work-table for sawing material in general B23D45/06
• CPC Class Codes: B27G 19/02 for circular saws
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 83/04 Processes
• 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 83/7726 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 83/8749 By pivotal motion

Abstract

A power tool in one embodiment includes a work-piece support surface, a swing arm assembly movable along a swing path between a first swing arm position whereat a portion of a shaping device supported by the swing arm assembly extends above the work-piece support surface and a second swing arm position whereat the portion of the shaping device does not extend above the work-piece support surface, a latch hold pivotable between a first latch hold position whereat the swing arm assembly can be supported by the latch hold in the first swing arm position and a second latch hold position whereat the swing arm assembly cannot be supported by the latch hold in the first swing arm position, an actuator chamber configured to receive at least one actuator, an opening in the actuator chamber, and a plug aligned with the opening and connected to the latch hold.

Claims

1. A table saw comprising:

a work-piece support surface;

a swing arm assembly movable along a swing path between a first swing arm position whereat a portion of a shaping device supported by the swing arm assembly extends above the work-piece support surface and a second swing arm position whereat the portion of the shaping device does not extend above the work-piece support surface;

a latch hold pivotable between a first latch hold position whereat the swing arm assembly can be supported by the latch hold in the first swing arm position and a second latch hold position whereat the swing arm assembly cannot be supported by the latch hold in the first swing arm position;

an actuator chamber configured to receive at least one actuator;

an opening in the actuator chamber; and

a plug aligned with the opening and connected to the latch hold such that when the latch hold is in the second latch hold position the plug is positioned at least partially within the actuator chamber.

2. The table saw of claim 1, wherein the plug is connected to the latch hold by at least one spring.

3. The table saw of claim 2, wherein the at least one spring comprises a first spring and a second spring.

4. The table saw of claim 2, wherein the latch hold is further pivotable to a third latch hold position, the third latch hold position within the swing path.

5. The table saw of claim 1, wherein the plug comprises a rounded upper portion for sliding contact with the at lest one actuator.

6. A table saw comprising:

a work piece support surface;

a shaping device support shaft retractable along a retraction path from a first shaft position to a second shaft position, wherein the second shaft position is more distal to the work piece support surface than the first shaft position;

a latch hold movable between a first latch hold position whereat the shaping device support shaft can be supported in the first shaft position and a second latch hold position whereat the shaping device support shaft cannot be supported in the first shaft position;

an actuator chamber configured to receive at least one actuator;

an opening in the actuator chamber; and

a plug aligned with the opening and connected to the latch hold such that when the latch hold is in the second latch hold position the plug is positioned at least partially within the actuator chamber.

7. The table saw of claim 6, wherein the plug is connected to the latch hold by at least one spring.

8. The table saw of claim 7, wherein the at least one spring comprises a first spring and a second spring.

9. The table saw of claim 7, wherein the latch hold is further pivotable to a third latch hold position, the third latch hold position within the swing path.

10. The table saw of claim 6, wherein the plug comprises a rounded upper portion for sliding contact with the at lest one actuator.

11. A power tool comprising:

a work piece support surface;

a shaping device support shaft retractable along a retraction path from a first shaft position to a second shaft position, wherein the second shaft position is more distal to the work piece support surface than the first shaft position;

an actuator chamber configured to receive at least one actuator;

an opening in the actuator chamber;

a plug configured to move at least partially into the actuator chamber from the opening; and

a latch hold movable between a first latch hold position whereat the shaping device support shaft can be supported in the first shaft position and a second latch hold position whereat the shaping device support shaft cannot be supported in the first shaft position, wherein the latch hold is connected to the plug such that when the plug is at least partially within the chamber, the latch hold is at the second latch hold position.

12. The power tool of claim 11, further comprising:

at least one spring connected to the latch hold and to the plug.

13. The power tool of claim 11, wherein the latch hold is pivotable between the first latch hold position and the second latch hold position.

14. The power tool of claim 13, wherein the actuator chamber is located within a carriage assembly movable along an axis toward and away from the work-piece support surface.

15. The power tool of claim 14, wherein the carriage assembly is supported by a frame, the frame pivotable with respect to the work-piece support surface.

16. The power tool of claim 14, wherein the shaping device support shaft is configured to support a saw blade.