IP Library Granted Patent US 6,938,809
Granted Patent B1
US 6,938,809 · App. 10/666,448 · Granted Sep 6, 2005

Nail lockout assembly

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Quick Facts
Patent No.
US 6,938,809
App. No.
10/666,448
Granted
Sep 6, 2005
Kind
B1
Abstract

A nail lockout assembly provides a way for an operator of a nail gun to have determined whether the nails being employed are properly aligned to allow for efficient operation of the nail gun. The nail lockout assembly may be employed in a nail loading assembly, such as an adjustable angle magazine, which is coupled with a nail driving assembly. A slotted guide member disposed in a housing of the nail loading assembly provides a determination of the angle of the nail loading assembly relative to the nail driving assembly through operational engagement with a projection. A linkage bar is coupled with the slotted guide member and translates the angle of the nail loading assembly to a pusher which engages a nail loaded in the nail loading assembly. A cover serrated member is coupled with a cover of the nail loading assembly. A pawl assembly is coupled with the linkage bar and may engage with the cover serrated member. An adapter couples with the pusher and the pawl assembly enabling rotational movement in each. The nail improperly aligned with the pusher causes the pawl assembly to engage with the cover serrated member and prevents the cover from closing along with preventing the pusher from advancing the nail in the nail loading assembly.

Claims (15)

1. A nail lockout assembly for use with a nail gun, comprising:

a slotted guide member for engaging a projection disposed in a nail loading assembly of the nail gun and for identifying the angle of coupling of the nail loading assembly to a nail driving assembly of the nail gun;

a linkage bar coupled with the slotted guide member, the linkage bar for translating the movement of the slotted guide member;

a pusher coupled with the linkage bar, the pusher for engaging a nail and translating the alignment of the nail, by rotation of the pusher, to the linkage bar;

a pawl assembly coupled with the linkage bar, the pawl assembly for rotating into a first or a second position based on the position of the linkage bar;

an adapter coupled with the pusher and the pawl assembly, the adapter for enabling the rotational movement of the pusher and the pawl assembly; and

a cover serrated member disposed on a cover of the nail loading assembly, the cover serrated member for engaging the pawl assembly in a second position,

wherein the pawl assembly engages with the cover serrated member and prevents the cover from closing and the nail from advancing when the nail, based on the angle of coupling of the nail loading assembly to the nail driving assembly, is improperly aligned with the pusher assembly.

2. The nail lockout assembly of claim 1 , wherein the nail loading assembly is an adjustable angle magazine.

3. The nail lockout assembly of claim 2 , wherein the adjustable angle magazine further comprises a universal adapter assembly.

4. The nail lockout assembly of claim 2 , wherein the adjustable angle magazine further comprises a pick-off pivot assembly.

5. The nail lockout assembly of claim 2 , wherein the adjustable angle magazine further comprises a nail shank pawl assembly.

6. The nail lockout assembly of claim 1 , wherein the adjustable angle magazine is enabled as a top-load or side-load magazine.

7. The nail lockout assembly of claim 1 , wherein the nail gun is selected from the group consisting of a spring-loaded nail gun, a pneumatic nail gun, an electromagnetic nail gun, a combustion nail gun, and a motor driven nail gun.

8. The nail lockout assembly of claim 1 , wherein the nail gun further comprises a clutch assembly.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2006
From: PORTER-CABLE CORPORATION
To: BLACK & DECKER INC.
Reel/Frame 017006/0374 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2003
From: SCHNELL, JOHN W.
To: PORTER-CABLE CORPORATION
Reel/Frame 014533/0941 →