WO2012065090A1 - Outil d'enfoncement d'élément de fixation - Google Patents

Outil d'enfoncement d'élément de fixation Download PDF

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Publication number
WO2012065090A1
WO2012065090A1 PCT/US2011/060413 US2011060413W WO2012065090A1 WO 2012065090 A1 WO2012065090 A1 WO 2012065090A1 US 2011060413 W US2011060413 W US 2011060413W WO 2012065090 A1 WO2012065090 A1 WO 2012065090A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastener
driving tool
probe
nosepiece
nosepiece component
Prior art date
Application number
PCT/US2011/060413
Other languages
English (en)
Inventor
Graeme Laurence Young
Original Assignee
Illinois Tool Works Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Illinois Tool Works Inc. filed Critical Illinois Tool Works Inc.
Publication of WO2012065090A1 publication Critical patent/WO2012065090A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
    • B25C1/188—Arrangements at the forward end of the barrel, e.g. splinter guards, spall minimisers, safety arrangements, silencers, bolt retainers

Definitions

  • the invention relates to apparatus for fastener guiding tools. More particularly, the invention relates to components adapted to attach to a fastener-driving tool for improving the accuracy and safety of fastener placement.
  • a fastener-driving tool is used to drive a fastener into a substrate.
  • a fastener-driving tool is a nail gun (or nailer), which drives nails.
  • a framing gun is another example and is a heavy duty nail gun. Craftsmen increasingly use fastener-driving tools in place of hammers because of their ease of use and better fastening abilities.
  • Fastener-driving tools such as nail guns
  • Electricity, compressed air (pneumatic), flammable gases and explosive charges are all used to drive nails from the gun.
  • the nail is driven through an opening in the nail gun into the substrate, such as wood, adjacent to the nail gun.
  • the nail is driven through an attachment assembly, such as a nosepiece, which generally functions to guide the path of the driven nail and as a safety release to allow the tool to fire when in contact with the substrate.
  • Many nail guns do not use individual nails but accept magazines or clips of many nails to avoid re-loading and enable rapid firing.
  • US 5,238,167 discloses a nosepiece comprising a probe having a tapered end, the probe being able to move laterally when impacted by a driven nail and upon recoil of the nail gun.
  • a similar device is disclosed in US 5,452,835 where the probe is pivotally displaceable. This device is shown in Figure 1 .
  • the Paslode Impulse IM90i Framing Nailer is specifically designed to be used with nails of a length suitable for framing. Typically, these tools are adapted to be used with nails between 50mm and 90mm in length.
  • a fastener-driving tool nosepiece component comprising: a body portion at least partially defining a channel through which a fastener driven by a fastener-driving tool may pass; a fastener-driving tool attachment portion; and a fastener guiding portion extending rearwardly from the body portion to an extent such that, when the nosepiece component is in a driving-ready position in use with the fastener-driving tool, the fastener guiding portion extends into a chamber of the fastener-driving tool to guide the motion of a driven fastener.
  • nosepiece refers to a removable, non-fixed component for use at the working end of a tool, for example the part of a tool where a fastener is driven from. Nosepieces may also be referred to as work contact elements and positive placement guides. It will be understood that the use of the term nosepiece herein encompasses these alternative terms and all equivalent devices.
  • front and back and equivalent terms in relation to the nosepiece component and other aspects of the invention described herein relate to the direction of travel of a fastener when the component is in use. That is, in normal use, the fastener moves in the direction of the back of the component towards the front of the component.
  • the fastener guiding portion extends rearwardly such that when the nosepiece component is in the driving-ready position in use with the fastener- driving tool, an end of the fastener guiding portion is substantially aligned with a tip of a fastener when the fastener is in a driving-ready position in the fastener-driving tool.
  • the fastener guiding portion comprises a fin-shaped portion extending rearwardly from the underside of the body portion.
  • the fastener guiding portion comprises a concave guiding surface positioned to guide the motion of a driven fastener.
  • the fastener guiding portion comprises a downwardly sloping guiding surface positioned to guide the motion of a driven fastener.
  • the nosepiece component comprises a probe attachment portion adapted to enable a probe to be moveably connected to the nosepiece component.
  • the probe attachment portion is adapted to pivotally connect the probe to the body portion. More preferably, the probe attachment portion comprises at least one upstanding member adapted to receive a pivot shaft.
  • the body portion encloses the channel through which the fastener may pass.
  • the nosepiece component comprises a lip extending outwards from the channel on a lower side of the front of the body portion such that the lip is substantially adjacent to a tip of the probe when the probe is connected to the body portion and in a fastener guiding position.
  • an upper surface of the lip forms a fastener guidance channel in combination with the probe such that, in use, motion of a driven fastener is guided along the fastener guidance channel.
  • the tip of the probe is marginally forward of the lip when the probe is in the fastener guiding position.
  • the fastener-driving tool attachment portion comprises an elongate member adapted to allow movement of the nosepiece component relative to the fastener-driving tool. More preferably, the elongate member comprises a groove to allow forwards and backwards movement of the nosepiece component relative to the fastener-driving tool.
  • the fastener-driving tool attachment portion further comprises two slits in the body portion on either side of the fastener guiding portion, the slits being adapted to receive a part of the fastener-driving tool.
  • a fastener-driving tool probe comprising: an elongate body having a nose portion and adapted to moveably connect to a fastener-driving tool nosepiece component, wherein an underside of at least the nose portion of the elongate body comprises a V-shaped groove.
  • the V-shaped groove is adapted to guide the motion of a driven fastener.
  • the V-shaped groove forms a fastener guidance channel in
  • the nose portion is arranged at an angle to the elongate body such that the underside of the nose portion is offset from an underside of the elongate body.
  • the probe is adapted to pivotally attach to the fastener-driving tool nosepiece component. More preferably, the probe is adapted to pivotally attach to the fastener-driving tool nosepiece component by a pivot shaft positioned in a middle section of the elongate body.
  • a fastener-driving tool nosepiece component comprising: a body portion at least partially defining a channel through which a fastener driven by a fastener-driving tool may pass; a fastener-driving tool attachment portion; a probe attachment portion adapted to enable a probe to be moveably connected to the nosepiece component; and a lip extending outwards from the channel on a lower side of the front of the body portion such that the lip is substantially adjacent to a tip of the probe when the probe is connected to the body portion and in a fastener guiding position.
  • an upper surface of the lip forms a fastener guidance channel in combination with the probe such that, in use, motion of a driven fastener is guided along the fastener guidance channel.
  • the tip of the probe is marginally forward of the lip when the probe is in the fastener guiding position.
  • the nosepiece component further comprises a fastener guiding portion extending from the body portion, wherein the fastener guiding portion extends rearwardly from the body portion to an extent such that, when the nosepiece component is in a driving-ready position in use with the fastener-driving tool, an end of the fastener guiding portion is substantially aligned with a tip of a fastener when the fastener is in a driving-ready position in the fastener-driving tool.
  • the probe attachment portion is adapted to pivotally connect the probe to the body portion.
  • the probe attachment portion comprises at least one upstanding member adapted to receive a pivot shaft.
  • the body portion encloses the channel through which the fastener may pass.
  • the fastener-driving tool attachment portion comprises an elongate member adapted to allow movement of the nosepiece component relative to the fastener-driving tool. More preferably, the elongate member comprises a groove to allow forwards and backwards movement of the nosepiece component relative to the fastener-driving tool.
  • the fastener-driving tool attachment portion further comprises two slits in the body portion on either side of the fastener guiding portion, the slits being adapted to receive a part of the fastener-driving tool.
  • a fastener-driving tool nosepiece assembly comprising the fastener-driving tool nosepiece component of the first and/or third aspect of the invention and a probe of the second aspect of the invention.
  • the probe is moveable between a fastener guiding position and a recoil position.
  • the V-shaped groove of the probe slopes downwardly relative to an intended direction of travel of a fastener.
  • Figure 1 is a cross-sectional view of a prior art fastener-driving tool
  • Figure 2 is a perspective view of a fastener-driving tool nosepiece
  • Figure 3 is a side view illustration of the fastener-driving tool nosepiece component shown in Figure 2;
  • Figure 4 is a perspective view illustration of a fastener-driving tool probe according to an embodiment of the invention.
  • FIG 5 is an alternative perspective view illustration of the fastener-driving tool probe shown in Figure 4.
  • Figure 6 is a perspective view illustration of a fastener-driving tool nosepiece assembly according to an embodiment of the invention.
  • the invention generally relates to improvements in components suitable for use with fastener-driving tools, such as nail guns.
  • the invention will be discussed in terms of its use with a nail gun for the purposes of this specification. However, it will be understood that such reference is not limiting and the invention may be used with any fastener-driving tool.
  • the invention will also be discussed with reference to its suitability for use in guiding fasteners driven by such tools. For the purposes of the specification, nails will be referred to but it will be understood that any fastener can be used.
  • Nosepiece Component Figure 2 is a perspective view of a fastener-driving tool nosepiece component 10 according to an embodiment of the invention.
  • Nosepiece component 10 comprises a body portion 1 1 at least partially defining a channel through which a nail fired by a nail gun can travel. In the embodiment shown, body portion 1 1 entirely encloses a channel through which a nail can be fired.
  • nosepiece component 10 is connected to a nail gun such that, when a nail is driven or fired from the nail gun, the nail passes through the channel in a direction from the back end nearest elongate member 12 towards the front end nearest lip 18.
  • Nosepiece component 10 comprises a fastener-driving tool attachment portion for connecting the nosepiece component to a nail gun.
  • the attachment portion comprises elongate member 12 and slits 13.
  • Elongate member 12 comprises groove 14 and side ridges 15.
  • Groove 14 is adapted to engage with a part of a nail gun and allows nosepiece component 10 to move relative to the nail gun by sliding.
  • Ridges 15 are adapted to engage with part of a nail gun and allow for a number of discrete positions for the nosepiece component in relation to the nail gun.
  • Slits 13 are adapted to receive a further part of a nail gun and again allow sliding movement of the nosepiece component relative to the nail gun.
  • the fastener-driving tool attachment portion components described above are adapted to enable the nosepiece component to be attached to a Paslode nail gun.
  • the particular configuration of these components is non-limiting to the scope of the invention.
  • a nosepiece component may be adapted to be used with any kind of nail gun. Those of skill in the art will readily understand how to adapt embodiments of the invention discussed herein for use with any type of nail gun.
  • the probe attachment portion On the upper side of nosepiece component 10 shown in Figure 2 is a probe attachment portion.
  • the probe attachment portion comprises two upstanding members 16, each of which is adapted to receive a pivot shaft, for example through holes 17.
  • a probe such as will be described below, can be moveably connected to nosepiece component 10 at the probe attachment portion.
  • Nosepiece component 10 may comprise a front lip 18.
  • lip 18 extends outwards from the front of body portion 1 1 or the channel passing through body portion 1 1 .
  • Lip 18 is positioned on the lower side of body portion 1 1 .
  • the edge of lip 18 is comprised of three straight edges, but other embodiments may have different shaped lips.
  • One advantage of the configuration shown is that the middle flat edge of lip 18 can be easily placed against a flat surface, enabling the nail gun to be accurately placed perpendicularly to the surface to be nailed, which in turn enables a nail to be fired perpendicularly to a substrate's surface.
  • nosepiece components may include a fastener guiding portion, for example in the form of fin 19.
  • a fastener guiding portion for example in the form of fin 19.
  • Fin 19 extends rearwardly from the underside of the body portion of nosepiece component 10. Its front end is adjacent to the tip of lip 18, but in other
  • the nail gun By attaching the nosepiece component to a nail gun, the nail gun is able to be used with shorter nails than its intended use.
  • the nosepiece component is moveable on a nail gun between a forward, "safety” position and a backward, “driving-ready” position. In the forward position the nail gun is unable to be fired.
  • the shorter nails in the magazine chamber of the nail gun are, in this position, a distance away from fin 19 such that deviation of the path of the nail can occur, resulting in the aforementioned problems.
  • the nosepiece can be slid backwards, in a direction towards the body of the nail gun. In this position, the nail gun is able to be fired to drive a fastener.
  • the length of the fin is such that, when the nail gun is in the driving-ready position, the fin extends into the magazine chamber of the nail gun so the nail needs to travel only a short distance before its path can be guided from deviations by the fin. This reduces the likelihood of a nail deviating from the intended path of travel within the guide, for example reducing the chance of rotation of nails within the magazine chamber.
  • the back tip of the fin when the nail gun is in the driving-ready position the back tip of the fin is substantially aligned with the tip of a nail in the nail gun that is in a position ready to be fired.
  • the tip of the fin is aligned with the front tip of the nail at the front of the magazine.
  • the upper guiding surface 20 of the rear tip of fin 19 is concave in lateral cross-section. It may also slope in a downwards direction towards the tip of the fin 19. This configuration may further assist the guidance of the path of a nail, as will be described later.
  • Figures 4 and 5 are perspective view illustrations of a fastener-driving tool probe 30 according to an embodiment of the invention.
  • Probe 30 has an elongate body having a nose portion 31 .
  • nose portion 31 is angled relative to the rest of the body of probe 30 such that the bottom side of nose portion 31 is offset from the bottom of the rest of the probe.
  • Probe 30 is adapted to enable it to be moveably connected to a fastener-driving tool nosepiece component, such as has been described in relation to Figures 2 and 3.
  • the probe is adapted to pivotally attach to the fastener-driving tool nosepiece component, for example through a pivot shaft in hole 32.
  • a V-shaped groove 33 running longitudinally. As will be described further below, V-shaped groove 33 is adapted to guide the path of a nail driven from a nail gun.
  • FIG 6 is a perspective view illustration of a fastener-driving tool nosepiece assembly 50 according to an embodiment of the invention.
  • Nosepiece assembly 50 comprises a nosepiece component 51 , such as has already been described in relation to Figures 2 and 3, and a probe 52, such as has already been described in relation to Figures 4 and 5.
  • Probe 52 is moveably connected to nosepiece component 51 .
  • probe 51 such as has already been described in relation to Figures 2 and 3
  • Probe 52 is moveably connected to nosepiece component 51 .
  • Probe 52 is pivotally connected via the hole in probe 52 to the upstanding members on the upper surface of nosepiece component 51 by means of a pivot shaft 53.
  • probe 53 is able to pivot between two extreme positions.
  • the front of the nose portion 54 of probe 53 is substantially adjacent to the front lip 55 of nosepiece component 51 and is in a fastener guiding position.
  • the tip of probe 53 is marginally forward of lip 55 in this position. This allows probe 53 to be used to locate the desired point of placement of the nail. For example, if the nail is to be fired through a metal connecting plate into timber, the probe can be placed in a prepared hole in the plate to ensure the nail is accurately driven through the hole.
  • probe 53 may move to this recoil position as a result of use of assembly 50 in a nail gun.
  • the probe may move in a different way with respect to the nosepiece component.
  • the probe may be able to laterally slide between a fastener guiding position and a recoil position within slide guides.
  • the underside of nose portion 54 of probe 53 is orientated slightly downwardly relative to the upper surface of the front lip 55, which is parallel to the intended direction of travel of a nail through nosepiece assembly 50. This aids in the guidance of the motion of a nail as will be discussed below.
  • the nosepiece assembly such as that discussed in relation to Figure 6, is attached to the nose portion of a nail gun.
  • the elongate member extending from the rear of the nosepiece component is slideably connected to the nail gun such that the nosepiece assembly can move forwards and backwards between the "safety" and “driving-ready” positions already discussed.
  • the nail gun may also connect to the assembly by means of the two slits on the underside of the nosepiece component.
  • alternative methods of connecting the nosepiece assembly to a nail gun are provided.
  • the assembly needs to be moved backwards into the driving- ready position to be able to be fired. In other embodiments this step is not required since the gun may always be in a driving-ready position.
  • the nosepiece assembly allows a nail gun to be safely used with nails that are shorter than the nails intended for use with the gun. With such use, the assembly is typically moved backwards to prime the nail gun for use.
  • the fin In the driving-ready position, the fin extends into the magazine chamber of the nail gun to such an extent that it can guide the motion of a driven nail. By extending into the chamber, the fin reduces the distance of travel of the nail before it can be guided, if necessary, by the fin.
  • the back tip of the fin on the underside of the nosepiece component is substantially aligned with the nail about to be fired when in a driving-ready position.
  • the nail When fired, the nail is propelled forward by whichever means is used for the nail gun in question.
  • the top of the back tip of the fin guides the path of the nail during its initial motion. If the nail is propelled on a trajectory that is too low, its tip will be guided by the top of the fin.
  • the concave and sloped shape of the fin's guiding surface in some embodiments assists in guiding the nail's motion.
  • the nail is guided towards its intended path, through the channel defined by the body portion of the nosepiece component. Because the tip of the fin is substantially aligned with the tip of the nail, the chances of the nail being fired inaccurately is greatly reduced. For example, it becomes very difficult for a nail to impact the fin and rotate in the nail gun chamber, as has been known to happen with prior art technology.
  • the motion path of the nail is further guided once it has passed through the nosepiece component.
  • the V-shaped groove of the probe in combination with the upper surface of the front lip of the nosepiece component, forms a fastener guidance channel. These three surfaces define three sides of a triangle through which the nail is guided out of the nail gun. For example, the tip of the nail may contact the V-shaped groove of the probe, causing its path to be guided along the direction defined by the groove.
  • the V-shaped groove is, in the embodiments discussed herein, positioned in the fastener guidance position such that the groove slopes downwardly relative to the upper surface of the front lip of the nosepiece component. This enables the probe to "catch" and guide nails that are moving along a range of motion paths.
  • the intended path at which the nail is fired from the gun is marked by the tip of the probe. Once the tip of the nail has been caught and guided by the tip of the probe, the V-shaped groove supports the nail shaft as the nail continues to move forward and until the nail tip penetrates the substrate.
  • the probe When contacted by a nail, the probe guides the path of the nail and is
  • the invention increases the accuracy of placing fasteners.
  • the tip of the probe is positioned in alignment with the point on a substrate where a fastener needs to be placed.
  • the invention also allows nails to be driven at a range of angles other than perpendicular to the surface of the substrate.
  • the motion of a nail is guided through the nail guidance channel such that the chance of sideways movement of the nail is greatly reduced.
  • the nail is guided by the nosepiece assembly both before it enters the substrate and for a time afterwards. This reduces the likelihood of problems occurring when a nail is fired at an angle to the perpendicular, as has been described in relation to the prior art.
  • the invention may also be said broadly to consist in the parts, elements and features referred to or indicated in the specification of the application, individually or collectively, in any or all combinations of two or more of said parts, elements or features.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

L'invention porte d'une manière générale sur des améliorations apportées à des éléments appropriés pour être utilisés avec des outils d'enfoncement d'élément de fixation, tels que des cloueuses. Un élément bec (10) d'outil d'enfoncement d'élément de fixation comprend une partie de guidage d'élément de fixation s'étendant vers l'arrière à partir de la partie corps (11) à un point tel que, lorsque l'élément bec (10) est dans une position prête à l'enfoncement lors d'une utilisation avec un outil d'enfoncement d'élément de fixation, la partie de guidage d'élément de fixation s'étend dans une chambre de l'outil d'enfoncement d'élément de fixation pour guider le déplacement d'un élément de fixation enfoncé. Le bec peut également comprendre une sonde fixée de manière pivotante à l'élément bec (10) qui aide au guidage de l'élément de fixation. Dans un autre mode de réalisation, le bec comprend une lèvre (18) sensiblement adjacente à une pointe de la sonde pour former un canal de guidage d'élément de fixation.
PCT/US2011/060413 2010-11-12 2011-11-11 Outil d'enfoncement d'élément de fixation WO2012065090A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ58924910 2010-11-12
NZ589249 2010-11-12

Publications (1)

Publication Number Publication Date
WO2012065090A1 true WO2012065090A1 (fr) 2012-05-18

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PCT/US2011/060413 WO2012065090A1 (fr) 2010-11-12 2011-11-11 Outil d'enfoncement d'élément de fixation

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3168008A3 (fr) * 2015-11-02 2017-07-19 Black & Decker Inc. Chasse-clou motorisé pourvu d'un ensemble de positionnement de clou

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238167A (en) 1992-10-09 1993-08-24 Illinois Tool Works Inc. Positioning mechanism for powered fastener-driving tool
US5452835A (en) 1994-08-01 1995-09-26 Illinois Tool Works Inc. Positioning mechanism for powered fastener-driving tool
DE10342586A1 (de) * 2002-11-20 2004-06-09 Tanja Hammes Prismenzange
EP1892061A1 (fr) * 2006-08-22 2008-02-27 Powers Fasteners Europe BV Outil pour enfoncer des clous, accessoire pour cet outil et procédé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238167A (en) 1992-10-09 1993-08-24 Illinois Tool Works Inc. Positioning mechanism for powered fastener-driving tool
US5452835A (en) 1994-08-01 1995-09-26 Illinois Tool Works Inc. Positioning mechanism for powered fastener-driving tool
DE10342586A1 (de) * 2002-11-20 2004-06-09 Tanja Hammes Prismenzange
EP1892061A1 (fr) * 2006-08-22 2008-02-27 Powers Fasteners Europe BV Outil pour enfoncer des clous, accessoire pour cet outil et procédé

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3168008A3 (fr) * 2015-11-02 2017-07-19 Black & Decker Inc. Chasse-clou motorisé pourvu d'un ensemble de positionnement de clou
US10350741B2 (en) 2015-11-02 2019-07-16 Black & Decker Inc. Powered nail driver with a nail placement assembly

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