Fastener-driving tool including a reversion trigger

Patent metadata

Field	Value
Publication number	US-10926387-B2
Application number	US-201916280657-A
Country	US
Kind code	B2
Filing date	Feb 20, 2019
Priority date	Oct 22, 2012
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A fastener-driving tool includes a housing and a workpiece-contacting element movable between a rest position and an activated position. The tool also includes a trigger connected to the housing and movable between a rest position and an activated position, a control valve including an actuating pin, an actuation lever movably connected to the trigger and movable between a rest position and an actuating position adjacent to the actuating pin, and a trigger control mechanism associated with the actuation lever and configured for moving and holding the actuation lever in the actuating position. In a powered mode, the trigger control mechanism causes the-actuation lever to move and remain in the actuating position such that the tool is actuated each time the workpiece-contacting element contacts a workpiece and moves to the activated position causing the actuation lever to contact the actuating pin and initiate an actuation of the tool.

First claim

The invention claimed is:

1. A fastener-driving tool comprising:
a housing;
a trigger movable relative to the housing between a rest position and an activated position;
a control valve actuatable to initiate fastener driving;
an actuation lever movable relative to the trigger between a non-actuating position and an actuating position; and
a workpiece-contact element movable relative to the housing between an extended position and a retracted position, the workpiece-contact element including a first component and a second component movable relative to the first component between:
(1) a first position in which the second component does not contact the actuation lever when both (a) the trigger is in the activated position and (b) the workpiece-contact element is moved to the retracted position; and
(2) a second position in which the second component contacts the actuation lever when both (a) the trigger is in the activated position and (b) the workpiece-contact element is moved to the retracted position, wherein the second component is translatable relative to the first component between the first and second positions.

2. The fastener-driving tool of claim 1 , wherein the workpiece-contact element includes a guide member and the second component is slidably connected to the guide member such that the second component is translatable relative to the guide member between the first and second positions.

3. A fastener-driving tool comprising:
a housing;
a trigger movable relative to the housing between a rest position and an activated position;
a control valve actuatable to initiate fastener driving;
an actuation lever movable relative to the trigger between a non-actuating position and an actuating position;
a workpiece-contact element movable relative to the housing between an extended position and a retracted position; and
an actuation lever-retaining component movable relative to the workpiece-contact element between a disengaged position and an engaged position, the actuation lever-retaining component movable from the disengaged position to the engaged position to engage the actuation lever and retain the actuation lever in the actuating position, wherein the actuation lever-retaining component is translatable relative to the actuation lever between the disengaged and engaged positions.

4. The fastener-driving tool of claim 3 , wherein the actuation lever-retaining component includes a piston.

5. The fastener-driving tool of claim 4 , wherein the piston is pneumatically actuated.

6. The fastener-driving tool of claim 4 , wherein the piston is positioned in a cylinder.

7. The fastener-driving tool of claim 4 , which includes a processor that controls actuation of the piston.

8. The fastener-driving tool of claim 3 , wherein the actuation lever-retaining component includes a pin.

9. The fastener-driving tool of claim 8 , wherein the pin is pneumatically actuated.

10. The fastener-driving tool of claim 8 , wherein the pin is positioned in a cylinder.

11. The fastener-driving tool of claim 8 , which includes a processor that controls actuation of the piston.

12. The fastener-driving tool of claim 3 , which includes a processor that controls actuation of the actuation lever-retaining component.

13. The fastener-driving tool of claim 3 , which includes a processor that controls actuation of the actuation lever-retaining component partly based on a designated time period.

14. The fastener-driving tool of claim 3 , which includes a processor that allows release of the actuation lever-retaining component from the engaged position partly based on a designated time period.

15. The fastener-driving tool of claim 3 , wherein when the fastener-driving tool is in a sequential-actuation mode, the actuation lever-retaining component is in the disengaged position.

16. The fastener-driving tool of claim 15 , wherein when the fastener-driving tool is in the sequential-actuation mode, the actuation lever-retaining component is in the disengaged position such that movement of the trigger to the activated position followed by movement of the workpiece-contact element to the retracted position actuates the control valve.

17. The fastener-driving tool of claim 3 , wherein when the fastener-driving tool is in a contact actuation mode, the actuation lever-retaining component is in the engaged position until a release event occurs.

18. The fastener-driving tool of claim 17 , wherein when the fastener-driving tool is in the contact actuation mode, the actuation lever-retaining component is in the engaged position such that movement of the workpiece-contact element to the retracted position actuates the control valve without requiring movement of the trigger.

Assignees

• Illinois Tool Works

Inventors

• Moore Stephen P
• Weinger Murray Z
• Birk Daniel J
• Zhao Hanxin
• Segura Ricardo
• Francis Ryan L

Classifications

• B25C1/043

  Trigger valve and trigger mechanism · CPC title

• B25C1/008 Primary

  Safety devices · CPC title

• B25C1/047

  Mechanical details · CPC title