Staple tool

Patent metadata

Field	Value
Publication number	US-10836024-B2
Application number	US-201715783413-A
Country	US
Kind code	B2
Filing date	Oct 13, 2017
Priority date	Aug 30, 2013
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

Disclosed is a tool for driving a barbed staple into a workpiece, the tool includes a housing enclosing a power delivery source and a driver blade driven by the power delivery source and comprising an engagement portion configured for engagement with the staple. The tool further includes a nosepiece comprising an aperture providing access for loading a staple into the nosepiece and a passage configured for slidable mounting of the driver blade. In use, the driver blade may be driven along a longitudinal axis of the passage by the power delivery source to engage and drive a staple into a workpiece. Clearances are providing to allow for loading and passage of the barbed staples in the nosepiece and arrangements are provided to maintain the alignment of the staple in the nosepiece to compensate for those clearances.

First claim

The invention claimed is:

1. A staple driving tool for driving a staple including a crown, a first leg, a second leg, a first barb extending outwardly from the first leg, a second barb extending outwardly from the second leg, said staple driving tool comprising:
a housing;
a power delivery source supported by the housing;
a driver blade supported by the housing and drivable by the power delivery source, the driver blade including an engagement portion corresponding to a shape of the crown; and
a nosepiece supported by the housing and defining:
(a) a driver blade passage in which the driver blade is slidably movable along a longitudinal axis of the driver blade passage,
(b) a first channel and a spaced-apart second channel, the first channel and the second channel each extending in the direction of the longitudinal axis of the driver blade passage, the first channel configured to receive the first barb extending outwardly from the first leg as the staple is driven by the driver blade in the driver blade passage, the second channel configured to receive the second barb extending outwardly from the second leg as the staple is driven by the driver blade in the driver blade passage, wherein a total width of the first channel and the second channel is greater than a total width of the driver blade passage, and
(c) a loading aperture extending transversely to the driver blade passage, the loading aperture having a first section having a first width, a second section having the first width, and a third section disposed between the first section and the second section and having a second width that is greater than the first width, wherein the third section of the loading aperture provides clearance for the first barb extending outwardly from the first leg and the second barb extending outwardly from the second leg, the nosepiece including first and second walls facing each other, the first wall defining at least in part the first channel, the second wall defining at least in part the second channel, wherein a space between the first wall and the second wall has a third width that is greater than the second width.

2. The staple driving tool of claim 1 , wherein the nosepiece defines each of the two spaced-apart channels such that they are parallel to the longitudinal axis of the driver blade passage.

3. The staple driving tool of claim 1 , wherein the nosepiece defines each of the two spaced-apart channels on opposing sides of the driver blade passage.

4. The staple driving tool of claim 1 , wherein the driver blade includes a ridge.

5. The staple driving tool of claim 1 , wherein the driver blade includes a ridge longitudinally extending on the driver blade.

6. The staple driving tool of claim 1 , wherein the nosepiece defines the third section of the loading aperture with two opposing lateral passages.

7. The staple driving tool of claim 1 , wherein the engagement portion of the driver blade includes opposing ends and a portion between and recessed relative to the opposing ends.

8. The staple driving tool of claim 7 , wherein the engagement portion of the driver blade is concave.

9. The staple driving tool of claim 1 , which includes a retractable workpiece contact element slidably mounted to the nosepiece.

10. The staple driving tool of claim 9 , wherein the workpiece contact element defines a groove.

11. The staple driving tool of claim 1 , which includes a staple supply mechanism supported by the housing.

12. A staple driving tool for driving a staple including a crown, a first leg, a second leg, a first barb extending outwardly from the first leg, a second barb extending outwardly from the second leg, said staple driving tool comprising:
a housing;
a power delivery source supported by the housing;
a driver blade supported by the housing and drivable by the power delivery source, the driver blade including an engagement portion corresponding to a shape of the crown; and
a nosepiece supported by the housing and defining:
(a) a driver blade passage in which the driver blade is slidably movable along a longitudinal axis of the driver blade passage,
(b) a first channel and a second channel opposing and spaced-apart from the first channel, each of the first channel and the second channel extending parallel to the longitudinal axis of the driver blade passage, the first channel configured to receive the first barb extending outwardly from the first leg as the staple is driven by the driver blade in the driver blade passage, the second channel configured to receive the second barb extending outwardly from the second leg as the staple is driven by the driver blade in the driver blade passage, wherein a total width of the first channel and the second channel is greater than a total width of the driver blade passage, and
(c) a loading aperture extending transversely to the driver blade passage, the loading aperture having a first section having a first width, a second section having the first width, and a third section disposed between the first section and the second section, the third section of the loading aperture comprising two opposing laterally extending passages and having a second width that is greater than the first width, the nosepiece including first and second walls facing each other, the first wall defining at least in part one of the first and second channels, the second wall defining at least in part the other one of the first and second channels, wherein a space between the first wall and the second wall has a third width that is greater than the second width.

13. The staple driving tool of claim 12 , wherein the driver blade includes a ridge.

14. The staple driving tool of claim 12 , wherein the driver blade includes a ridge longitudinally extending on the driver blade.

15. The staple driving tool of claim 12 , wherein the engagement portion of the driver blade includes opposing ends and a portion between and recessed relative to the opposing ends.

16. The staple driving tool of claim 15 , wherein the engagement portion of the driver blade is concave.

17. The staple driving tool of claim 12 , which includes a retractable workpiece contact element slidably mounted to the nosepiece.

18. The staple driving tool of claim 17 , wherein the workpiece contact element defines a groove.

19. The staple driving tool of claim 17 , which includes a staple supply mechanism supported by the housing.

20. A staple driving tool for driving a staple including a crown, a first leg, a second leg, a first barb extending outwardly from the first leg, a second barb extending outwardly from the second leg, said staple driving tool comprising:
a housing;
a power delivery source supported by the housing;
a driver blade supported by the housing and drivable by the power delivery source, the driver blade including an engagement portion corresponding to a shape of the crown;
a nosepiece supported by the housing and defining:
(a) a driver blade passage in which the driver blade is slidably movable along a longitudinal axis of the driver blade passage,
(b) first and second opposing spaced-apart channels each extending parallel to the longitudinal axis of the driver blade passage, the first channel configured to receive the first barb extending outwardly from the first leg as the staple is driven by the driver blade in the driver blade passage, the second channel configured to receive the second barb extending outwardly from the second leg as the staple is driven by the driver blade in the driver blade passage, wherein a total width o

Assignees

• Illinois Tool Works

Inventors

• Young Graeme

Classifications

• B25C5/06 Primary

  without provision for bending the ends of the staples on to the work · CPC title

• B25C1/047

  Mechanical details · CPC title

• B25C5/16

  Staple-feeding devices {, e.g. with feeding means, supports for staples or accessories concerning feeding devices} · CPC title