TABLE SAW WITH ACTUATOR MODULE

• US 20110048188A1
• Filed: 08/26/2009
• Published: 03/03/2011
• Est. Priority Date: 08/26/2009
• Status: Active Grant

• Current Assignee: Credo Technology Corporation
• Original Assignee: Credo Technology Corporation, Robert Bosch GmbH
• Inventors: Groth, Brady J., Mehta, Amit K.
• Granted Patent: US 9,969,013 B2
• Time in Patent Office: Days
• US Class Current: 83/58
• CPC Class Codes: B23D 45/061 the saw blade 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 59/002 for the position of the saw blade B27B5/36 and B27B9/02 take precedence
• CPC Class Codes: B23Q 11/0078 Safety devices protecting the operator, e.g. against accident or noise protecting the machine tool B23Q5/58; protecting people, in general F16P1/00, F16P3/00
• CPC Class Codes: B23Q 11/0089 actuating operator protecting means, e.g. closing a cover element, producing an alarm signal
• CPC Class Codes: B27G 19/02 for circular saws
• CPC Class Codes: Y10T 83/081 With randomly actuated stopping means
• 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 swing arm assembly movable along a swing path between a first swing arm position and a second swing arm position, a latch pin pivotable between a first position and a second position, an actuator module configured to receive a plurality of actuators, a first actuating module position within the actuator module configured to align a first of the plurality of actuators with a strike plate on the swing arm assembly, a loader configured to bias a second of the plurality of actuators from a second actuating module position within the actuator module toward the first actuating module position, and a control system configured to actuate each of the plurality of actuators positioned in the first actuating module position to force the swing arm assembly away from the first swing arm position and toward the second swing arm position.

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 pin pivotable between a first position whereat the latch pin is engaged with the swing arm assembly and a second position whereat the latch is not engaged with the swing arm assembly;

an actuator module configured to receive a plurality of actuators;

a first actuating module position within the actuator module configured to align a first of the plurality of actuators with a strike plate on the swing arm assembly;

a loader configured to bias a second of the plurality of actuators from a second actuating module position within the actuator module toward the first actuating module position; and

a control system configured to actuate each of the plurality of actuators positioned in the first actuating module position so as to cause the latch pin to move from the first position to the second position and to force the swing arm assembly away from the first swing arm position and toward the second swing arm position.

2. The table saw of claim 1, wherein:

the actuator module comprises a spring.

3. The table saw of claim 1, wherein each of the plurality of actuators comprises a pyrotechnic device.

4. The table saw of claim 1, wherein the actuator module is removably supported beneath the work-piece support surface.

5. The table saw of claim 1, wherein each of the plurality of actuators is independently removable from the actuator module.

6. A power tool 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 pin movable between a first position whereat the latch pin is engaged with the swing arm assembly and a second position whereat the latch is not engaged with the swing arm assembly;

an actuator module configured to receive a plurality of actuators;

a first actuating module position within the actuator module configured to align a first of the plurality of actuators with a portion of the swing arm assembly;

a loader configured to bias a second of the plurality of actuators from a second actuating module position within the actuator module toward the first actuating module position; and

a control system configured to actuate each of the plurality of actuators positioned in the first actuating module position so as to cause the latch pin to move from the first position to the second position and to force the swing arm assembly away from the first swing arm position and toward the second swing arm position.

7. The power tool of claim 6, wherein:

the actuator module comprises a spring.

8. The power tool of claim 6, wherein each of the plurality of actuators comprises a pyrotechnic device.

9. The power tool of claim 6, wherein the actuator module is removably supported beneath the work-piece support surface.

10. The power tool of claim 6, wherein each of the plurality of actuators is independently removable from the actuator module.