EP1095740B1 - Drahtführung für Heftpistole - Google Patents

Drahtführung für Heftpistole Download PDF

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Publication number
EP1095740B1
EP1095740B1 EP20000303378 EP00303378A EP1095740B1 EP 1095740 B1 EP1095740 B1 EP 1095740B1 EP 20000303378 EP20000303378 EP 20000303378 EP 00303378 A EP00303378 A EP 00303378A EP 1095740 B1 EP1095740 B1 EP 1095740B1
Authority
EP
European Patent Office
Prior art keywords
wire guide
housing
slot
tool
guide
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP20000303378
Other languages
English (en)
French (fr)
Other versions
EP1095740A1 (de
Inventor
Joel Steven Worktools Inc. Marks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WorkTools Inc
Original Assignee
WorkTools 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 WorkTools Inc filed Critical WorkTools Inc
Priority to DE2000631822 priority Critical patent/DE60031822T2/de
Priority to EP20000303378 priority patent/EP1095740B1/de
Publication of EP1095740A1 publication Critical patent/EP1095740A1/de
Application granted granted Critical
Publication of EP1095740B1 publication Critical patent/EP1095740B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/06—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor without provision for bending the ends of the staples on to the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C7/00—Accessories for nailing or stapling tools, e.g. supports

Definitions

  • the present invention relates to fastener driving tools according to the preamble of independent claim 1 as is known from US 5 884 829 A. More precisely, the present invention relates to improvements in the operation of fastening wires by stapling.
  • the present invention discloses an improved method to guide staples around wires.
  • Staple guns are well known as a tool for fastening paper, cardboard, or similar thin materials to wood or other substrates.
  • An additional application for staple guns is to hold electrical wires or similar items in place.
  • the staple is installed over and around the wire.
  • staple guns are effective for only one or the other application.
  • Wire staplers have a notched extension downward from the front end to position the staple over the wire. This feature however prevents the staple from seating flush when used for ordinary materials. A separate standard staple gun is required for that purpose.
  • a desirable improvement would be to have a wire guide feature which is permanently built into the structure of the staple gun but does not increase the external bulk of the tool nor substantially the cost. It is also desirable that the wire guide can be extended and retracted quickly.
  • Standard staples have a flat crown to hold materials down.
  • Special wire staples have rounded crowns to better fit a rounded wire.
  • the staples or the staple gun may be designed so that either type of staple can be used in the same tool. Such staple guns are readily available. Whether one or the other format staple is chosen, a wire guide provides the same utility.
  • the present invention according to claim 1 provides a fastening tool to attach wires to a substrate with fasteners driven by impact blow the tool comprising:
  • the focus of the present invention is an extendible wire guide fitted to a staple gun tacker in such a way that the wire guide elements are a permanent and not readily separable part of the staple gun.
  • a detent or cam type latch secures the wire guide in position.
  • Figures 1 and 3 show the invention as part of a forward action staple gun tool.
  • Figure 9 shows the invention in a rearward action staple gun.
  • Other staple guns including pull-up handle style and electric tackers could be designed with the wire guide of the present invention.
  • Figure 1 shows the exemplary elements of one embodiment of the invention.
  • the embodiments of Figs. 1 and 9 are especially suited for a tool where housing 10 is molded of a plastic material such as polycarbonate.
  • Handle 90 is pivotably attached to housing 10.
  • Track pull 20 operates a staple feeding guide track, not shown, to load fasteners into staple chamber 15. Staples are biased toward wire guide 30 at the front of chamber 15.
  • a plunger 18 slides within guide slots 17.
  • Wire guide slot 13 and extension 12 of housing 10 help to slidably hold wire guide 30 within housing 10.
  • wire guide 30 has a sharp cornered "U" channel shape.
  • a front most staple within chamber 15 presses the interior of wire guide 30.
  • the plunger ejects this front staple downward out of the tool.
  • the bottom portion of the plunger is guided by the three interior surfaces defined by the "U" shape of wire guide 30.
  • the wire guide serves the additional functions of a conventional nose piece.
  • a cover or front end piece is used to position the plunger and staples in the ejection area. It is one innovation of the present invention that an internal front end piece can also serve as an extendible wire guide.
  • Recess notch 32 provides clearance for wires.
  • Tab 34 engages slide switch 40 at slot 46 so that sliding switch 40 front to back causes wire guide 30 to move up and down.
  • the features of switch 40 are best seen in Figure 6.
  • Slot 46 includes a wide lower portion defined at notch 44.
  • Notch 44 is a substantially horizontal edge of slot 46 to serve as a stop for tab 34 of wire guide 30.
  • notch 44 prevents upward force on wire guide 30 from forcing switch 40 backward. More than one notch 44 could be provided to allow multiple extended positions of the wire guide.
  • Normal use of a staple gun involves pressing down on the front end of the tool even in a conventional rearward action type tool as in Fig. 9.
  • detents 49 may be included. Detents 49 engage movable tab 19 where tab 19 may be an element of housing 10. Alternately switch 40 may slide with sufficient friction such that vibration and gravity will not unintentionally move switch 40. Tab 42 is exposed outside of chamber 15 through opening 16 ( Figure 3). A user moves tab 42 forward or backward to extend or retract wire guide 30. The function of tab 34 and slot 46 may be reversed so that wire guide 30 has a slot engaged with a tab of switch 40.
  • Figures 7 and 8 show an alternate embodiment wire guide.
  • wire guide 130 is a single component and locks against the housing directly.
  • Wire guide 130 is best suited for use in a metal bodied tool, or where at least the front end of the tool is metal.
  • Tab 143 engages detent notches 144 of housing 10. Extension 142 is accessible to a finger to be pressed inward to disengage tab 143 from notch 144. Wire guide 130 can then be slid up and down to extend and retract wire guide 130. Arms 119 of wire guide 130 flex to allow inward motion of tab 143. A pair of notches 144 is at the top and bottom of opening 112 in housing 10 to lock wire guide 130 in either the up or down position. Additional notches may be included to provide more than two positions. However just at least one lower notch is required to lock wire guide 130 in the lower position since friction may hold it in the upper position. Recess 132 fits over a wire.
  • wire guide 130 is immediately in front of, and in sliding contact with, the plunger, not shown, so that the assembly including wire guide 130 is compact.
  • Wire guide 130 then serves as the limiting front face of staple chamber 15 as described above for wire guide 30.
  • wire guide 130 could have a "U" shaped section similar in function to that of wire guide 30.
  • the movable element of the detent action comprise flexible arms 119.
  • a further movable or flexible element of the tool assembly may engage a detent feature of wire guide 130.
  • wire guide 130 could be in a guide slot of housing 10 separate from the guide slot for the plunger. A different element than wire guide 130 would then be the front face of chamber 15.
  • the utility of the present invention is not limited to forward action staple guns.
  • the wire guide of the invention may be included as part of a conventional rearward action staple gun.
  • An electric staple gun could also support the wire guide of the present invention.
  • the wire guide is elongated vertically.
  • the wire guide further has a means to secure it in a selected vertical position.
  • a detent latch is the most compact means for securing the wire guide.
  • An eccentric wedging type cam could also secure the wire guide.
  • a pivoting lever or similar member is rotated about a fixed pivot so that a cam of the lever, directly or through a further member, progressively presses a surface of the wire guide to lock the wire guide in position.
  • a screw or nut device also may secure the wire guide.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (6)

  1. Eine Heftvorrichtung zum Heften von Drähten an ein Material mithilfe von Heftklammern, durch Schlagkraft angetrieben, wobei die Vorrichtung umfasst:
    einen Gehäusekörper (10) einschließlich einer Vorder-, Rück-, Ober- und Unterseite;
    eine Heftklammerführungsschiene, die am Gehäuse (10) nahe der Unterseite davon (15) angebracht ist, zum Führen der Heftklammern in Richtung der Vorderseite des Gehäuses; und
    einen Plunger (18), der sich an der Vorderseite des Gehäusekörpers befindet, wobei der Plunger darauf ausgerichtet ist, an der Vorderseite der Heftklammerführungsschiene aus der Heftvorrichtung Objekte auszustoßen, gekennzeichnet durch
    einen Drahtführungsschlitz (13) an der Vorderseite des Gehäusekörpers (10); und
    eine Drahtführung (30, 130), die verschiebbar im Inneren des Schlitzes (13) an der Vorderseite des Gehäuses eingebaut ist, wobei sich die im Schlitz (13) enthaltene Drahtführung im Wesentlichen vollständig im Inneren des Körpers der Vorrichtung befindet und sich die Drahtführung bei Anwendung vertikal zwischen einer oberen vertikalen Position und einer unteren vertikalen Position bewegen kann, wobei die untere vertikale Position einschließlich eines Abschnitts der Drahtführung über die Unterseite des Gehäusekörpers an der Vorderseite des Gehäusekörpers hinausragt;
    die Drahtführung einschließlich mindestens einem Drahtführungsschaltelement (40, 142), dass so angeordnet ist, dass es wahlweise mit mindestens einem Gehäuseelement verbunden ist, so dass die Drahtführung in der unteren vertikalen Position gegen eine aufwärts gerichtete Kraft, die auf die Drahtführung wirkt, gesichert ist.
  2. Die Heftvorrichtung nach Anspruch 1, wobei sich die Drahtführung (30, 130) direkt vor dem Plunger (18) befindet und mit dem Plunger in Schiebekontakt steht.
  3. Die Heftvorrichtung nach Anspruch 1, wobei der Schalter (40, 140) mit Reibung im Inneren des Gehäusekörpers (10) gleitet.
  4. Die Heftvorrichtung nach Anspruch 1, wobei der Schalter (40) eine schwenkbare Nocke umfasst, die wahlweise eine Oberfläche der Drahtführung drückt.
  5. Die Heftvorrichtung nach Anspruch 1, wobei der Schlitz (13) ein die Vorderseite des Gehäuses (10) abschließendes Ende beinhaltet.
  6. Die Heftvorrichtung nach Anspruch 1, wobei die Drahtführung (30, 130) vertikal verlängert und verschiebbar am vertikalen Schlitz (13) befestigt ist und das vordere Ende der Vorrichtung bildet.
EP20000303378 2000-04-20 2000-04-20 Drahtführung für Heftpistole Expired - Lifetime EP1095740B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2000631822 DE60031822T2 (de) 2000-04-20 2000-04-20 Drahtführung für Heftpistole
EP20000303378 EP1095740B1 (de) 2000-04-20 2000-04-20 Drahtführung für Heftpistole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20000303378 EP1095740B1 (de) 2000-04-20 2000-04-20 Drahtführung für Heftpistole

Publications (2)

Publication Number Publication Date
EP1095740A1 EP1095740A1 (de) 2001-05-02
EP1095740B1 true EP1095740B1 (de) 2006-11-15

Family

ID=8172931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000303378 Expired - Lifetime EP1095740B1 (de) 2000-04-20 2000-04-20 Drahtführung für Heftpistole

Country Status (2)

Country Link
EP (1) EP1095740B1 (de)
DE (1) DE60031822T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009220105B2 (en) * 2008-03-07 2015-04-30 Arrow Fastener Co., Llc Wire guide for an automatic staple gun

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2775763A (en) * 1954-08-25 1957-01-01 Bell Telephone Labor Inc Stapling machine
US4552296A (en) * 1983-10-19 1985-11-12 Wang Sheng Stapling gun
US5884829A (en) * 1996-10-23 1999-03-23 Arrow Fastener Co., Inc. Dual purpose staple gun tacker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009220105B2 (en) * 2008-03-07 2015-04-30 Arrow Fastener Co., Llc Wire guide for an automatic staple gun
AU2009220105C1 (en) * 2008-03-07 2015-10-01 Arrow Fastener Co., Llc Wire guide for an automatic staple gun

Also Published As

Publication number Publication date
DE60031822T2 (de) 2007-09-13
EP1095740A1 (de) 2001-05-02
DE60031822D1 (de) 2006-12-28

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