EP2223776B1 - Verriegelungsanordnung für ein Heftgerät - Google Patents

Verriegelungsanordnung für ein Heftgerät Download PDF

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Publication number
EP2223776B1
EP2223776B1 EP20090250558 EP09250558A EP2223776B1 EP 2223776 B1 EP2223776 B1 EP 2223776B1 EP 20090250558 EP20090250558 EP 20090250558 EP 09250558 A EP09250558 A EP 09250558A EP 2223776 B1 EP2223776 B1 EP 2223776B1
Authority
EP
European Patent Office
Prior art keywords
front cover
staple
staple gun
locking
gun
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 - Fee Related
Application number
EP20090250558
Other languages
English (en)
French (fr)
Other versions
EP2223776A1 (de
Inventor
Jui-Yuan Lin
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.)
Lin Jui-Yuan
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP20090250558 priority Critical patent/EP2223776B1/de
Publication of EP2223776A1 publication Critical patent/EP2223776A1/de
Application granted granted Critical
Publication of EP2223776B1 publication Critical patent/EP2223776B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/10—Driving means
    • B25C5/11—Driving means operated by manual or foot power

Definitions

  • the present invention relates to a latch assembly, and more particularly relates to a latch assembly for a staple gun that can hold a handle of the staple gun conveniently and safely when the staple gun is not being used.
  • a conventional staple gun is used extensively with decorations, shoemaking and leatherwear and drives staples into objects. Accordingly, the staple is ejected from the staple gun at a high speed. This may be dangerous if a handle of the staple gun is thoughtlessly squeezed, which ejects a staple from the staple gun and may injure someone. Consequentially, conventional staple guns usually have a protection device to hold the handle against the staple gun when the staple gun is not being used to prevent the staples from being shoot from the staple gun.
  • EP 1839818 discloses a staple gun according to the preamble of claim 1.
  • the protection device for the conventional staple gun has a complicated structure and locking the handle to the staple gun by the protection device rubbing against the staple gun isn't easy so the conventional staple gun is inconvenient to use.
  • the protection device will wear down and will not hold the housing securely after a long time and may get someone hurt.
  • the present invention provides a latch assembly for a staple gun to mitigate or obviate the aforementioned problems.
  • the main objective of the present invention is to provide a latch assembly for a staple gun can hold a handle of the staple gun conveniently and safely when the staple gun is not being used.
  • a latch assembly for a staple gun in accordance with the present invention has a front cover, a locking element, a pushing element and a staple driver.
  • the front cover is detachably mounted on the staple gun and has two bolt holes and a connecting bolt.
  • the locking element is pivotally mounted on the front cover and has at least one cam, a locking block and a torsion spring.
  • the at least one cam is rotatably mounted around the connecting bolt.
  • the locking block is formed with the at least one cam below the connecting bolt.
  • the torsion spring is mounted around the connecting bolt to push the locking block moving backward to the front cover.
  • the pushing element is slidably mounted in the front cover and has a pushing lever and a pressing pin. The pushing lever abuts the at least one cam.
  • the pressing pin extends out of the front cover.
  • the staple driver is mounted slidably between the front cover and the staple gun and has a locking hole, a through hole and an elastic panel.
  • the locking hole is formed through the staple driver and engages the locking block.
  • the through hole is formed through the staple driver.
  • the elastic panel engages the through hole.
  • Figs. 4 to 6 are operational side views in partial section of the latch assembly mounted in the staple gun in Fig. 1 .
  • a latch assembly in accordance with the present invention is mounted in a staple gun (50) having a housing (51), a handle (52) and a staple magazine (53) and the latch assembly comprises a front cover (10), a locking element (20), a pushing element (30) and a staple driver (40).
  • the housing (51) is hollow, may be formed by two half-casings and has a front side, a top edge and a bottom edge.
  • the handle (52) is connected pivotally to the housing (51), protrudes from the top edge of the housing (51) and has an acting end (521) and a pressing end (522).
  • the acting end (521) of the handle (52) is pivotally mounted inside the housing (51) and extends to the front side of the housing (51).
  • the pressing end (522) of the handle (52) extends out of the top edge of the housing (51).
  • the staple magazine (53) is mounted in the housing (51) at the bottom edge, holds multiple staples and pushes the staples to a front of the staple magazine (53).
  • the front cover (10) may be U-shaped, is detachably mounted on the front side of the housing (51) and has a top, a bottom, a front side, two sidewalls, two bolt holes (11), a connecting bolt (12), multiple mounting holes (13), multiple fasteners (14), a first spring mount (15) and a protecting cap (16).
  • the bolt holes (11) are formed through the front side of the front cover (10) near the top and align with each other.
  • the connecting bolt (12) is mounted in the bolt holes (11) of the front cover (10)
  • the mounting holes (13) are formed through the sidewalls of the front cover (10) and align with each other.
  • the fasteners (14) are mounted in the mounting holes (13) of the front cover (10) to connect the front cover (10) with the housing (51) of the staple gun (50).
  • the first spring mount (15) is formed on and protrudes from the front side of the front cover (10) near the bottom.
  • the protecting cap (16) is detachably mounted on the front side of the front cover (10) to form a mounting recess (17) between the front cover (10) and the protecting cap (16).
  • the locking element (20) is pivotally mounted on the front cover (10) and has at least one cam (21), a locking block (22) and a torsion spring (23).
  • the at least one cam (21) may be water drop shaped, is rotatably mounted around the connecting bolt (12) of the front cover (10).
  • Preferably two cams (21) are rotatably mounted around the connecting bolt (12).
  • the locking block (22) is formed with the at least one cam (21) below the connecting bolt (12), may be formed between the two cams (21) and has a locking end (221).
  • the locking end (221) of the locking block (22) is extended to the front side of the front cover (10).
  • the torsion spring (23) is mounted around the connecting bolt (12) of the front cover (10) to push the locking block (22) to the front side of the front cover (10).
  • the pushing element (30) is slidably mounted in the mounting recess (17) between the front cover (10) and the protecting cap (16) and has an upper end, a lower end, a pushing lever (31), a pressing pin (32), a second spring mount (33) and a pushing spring (34).
  • the pushing lever (31) is formed on the upper end of the pushing element (30) and abuts the at least one cam (21).
  • the pressing pin (32) is formed on the lower end of the pushing element (30) and extends out of the bottom of the front cover (10).
  • the second spring mount (33) is formed on and protrudes from the pushing element (30) above the first spring mount (15) of the front cover (10).
  • the pushing spring (34) is mounted between the spring mounts (15, 33) to press the pressing pin (34) downward to extend out of the bottom of the front cover (10).
  • the staple driver (40) is mounted slidably between the front cover (10) and the housing (51) of the staple gun (50) and has a lower end, an upper end, a locking hole (41), a through hole (42) and an elastic panel (43).
  • the lower end of the staple driver (40) extends over the staple magazine (53) of the staple gun (50).
  • the locking hole (41) is formed through the staple driver (40) near the upper end, engages the locking end (221) of the locking block (22) and aligns with the acting end (521) of the handle (52).
  • the through hole (42) is formed through the staple driver (40) below the locking hole (41).
  • the elastic panel (43) engages the through hole (42) of the staple driver (40) in the housing (51) of the staple gun (50) to provide an impulsive force to the staple driver (40) to eject the staples in the staple magazine (53) out of the staple gun (50).
  • the pressing pin (32) of the pushing element (30) is placed on a surface of the object to make the pushing lever (31) move upward relative to the front cover (10) and the housing (51) to push the at least one cam (21).
  • the at least one cam (21) is pushed by the pushing lever (31) of the pushing element (30)
  • the locking element (20) will rotate relative to the connecting bolt (12) and the locking end (221) of the locking block (22) will separate from the locking hole (41) of the staple driver (40) and the acting end (521) of the handle (52) will engage in the locking hole (41) of the staple driver (40).
  • the pushing spring (34) between the spring mounts (15, 33) will push the pressing pin (32) of the pushing element (30) out of the bottom of the cover (10) and the locking element (20) will be rotated relative to the connecting bolt (12) of the cover (10) by the torsion spring (23) to make the locking block (22) move back to an original position and make the locking end (221) of the locking block (22) securely engage the locking hole (41) of the staple driver (40) so preventing staples being shoot from the staple gun (50) when the handle (52) of the staple gun (50) is thoughtlessly squeezed.

Landscapes

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

Claims (6)

  1. Heftmaschine (50) mit einem Gehäuse, einem Griff (52), der schwenkbar mit dem Gehäuse (51) verbunden ist, und einem Heftklammermagazin (53), das im Gehäuse (51) unter dem Griff (52) montiert ist, und einer Verriegelungseinheit, dadurch gekennzeichnet, dass die Verriegelungseinheit Folgendes aufweist:
    eine Vorderseitenabdeckung (10), die angepasst ist, um abnehmbar am Gehäuse (51) montiert zu werden, und Folgendes aufweist:
    eine Oberseite,
    eine Unterseite,
    eine Vorderseite,
    zwei Seitenwände,
    zwei Bolzenlöcher (11), die durch die Vorderseite der Vorderseitenabdeckung (10) nahe der Oberseite gebildet und zueinander ausgerichtet sind, und
    ein Verbindungsbolzen (12), der in den Schraubenlöchern (11) der Vorderseitenabdeckung (10) montiert ist,
    wobei ein Verriegelungselement (20) schwenkbar an dere Vorderseitenabdeckung (10) montiert ist und Folgendes hat
    mindestens eine Nocke (21), die um den Verbindungsbolzen (12) der Vorderseitenabdeckung (10) drehbar montiert ist,
    einen Verriegelungsblock (22), der mit der mindestens einen Nocke (21) unter dem Verbindungsbolzen (12) gebildet ist und ein Verriegelungsende (221) hat, das sich zu der Vorderseite der Vorderseitenabdeckung (10) erstreckt, und
    eine Torsionsfeder (23), die um den Verbindungsbolzen (12) der Vorderseitenabdeckung (10) montiert ist, um den Verriegelungsblock (22) zu der Vorderseite der Vorderseitenabdeckung (10) zu drücken,
    ein Schubelement (30), das verschiebbar in der Vorderseite der Vorderseitenabdeckung (10) montiert ist und Folgendes hat
    ein oberes Ende,
    ein unteres Ende,
    einen Schubhebel (31), der am oberen Ende des Schubelements (30) gebildet ist und an der mindestens einen Nocke (21) anliegt, und
    einen Druckstift (32), der am unteren Ende des Schubelements (30) gebildet ist und sich aus der Unterseite der Vorderseitenabdeckung (10) erstreckt, und
    einen Heftklammertreiber (40), der verschiebbar zwischen der Vorderseitenabdeckung (10) und der Heftmaschine (50) montiert ist und Folgendes hat
    ein unteres Ende, das sich über das Heftklammermagazin (53) der Heftmaschine (50) erstreckt,
    ein oberes Ende,
    ein Verriegelungsloch (41), das durch den Heftklammertreiber (40) nahe dem oberen Ende gebildet ist, in Eingriff mit dem Verriegelungsende (221) des Verriegelungsblocks (22) und eingerichtet sich zum Griff (52) auszurichten;
    ein durchgehendes Loch (42), das durch den Heftklammertreiber (40) unter dem Verriegelungsloch (41) gebildet ist, und
    eine elastische Platte (43) in Eingriff mit dem durchgehenden Loch (42) des Heftklammertreibers (40) in der Heftmaschine (50), um eine Antriebskraft für den Heftklammertreiber (40) bereitzustellen.
  2. Heftmaschine (50) nach Anspruch 1, wobei die Vorderseitenabdeckung (10) eine Schutzkappe (16) hat, die abnehmbar an die Vorderseite der Vorderseitenabdeckung (10) montiert ist, um eine Montagevertiefung (17) zwischen der Vorderseitenabdeckung (10) und der Schutzkappe (16) zu bilden, wobei das Schubelement (30) verschiebbar in die Montagevertiefung (17) zwischen der Vorderseitenabdeckung (10) und der Schutzkappe (16) montiert ist.
  3. Heftmaschine (50) nach Anspruch 1 oder 2, wobei die Vorderseitenabdeckung (10) eine erste Federanordnung (15) hat, die an der Vorderseite der Vorderseitenabdeckung (10) in der Nähe des Bodens gebildet ist und von dieser vorsteht, und
    das Schubelement (30) eine zweite Federanordnung (33) hat, die am Schubelement (30) oberhalb der ersten Federanordnung (15) der Vorderseitenabdeckung (10) gebildet ist und von diesem vorsteht, und
    eine Schubfeder (34), die zwischen den Federanordnungen (15, 33) montiert ist, um den Druckstift (32) nach unten und in eine Position zu drücken, in der er aus der Unterseite der Vorderseitenabdeckung (10) vorsteht.
  4. Heftmaschine (50) nach Anspruch 1 oder 3, wobei das Verriegelungselement (20) zwei Nocken (21) hat, die drehbar um den Verbindungsbolzen (12) angeordnet sind, und
    der Verriegelungsblock (22) zwischen den zwei Nocken (21) gebildet ist.
  5. Heftmaschine (50) nach Anspruch 1 oder 4, wobei die Vorderseitenabdeckung (10) U-förmig ist und
    mehrere Montagelöcher (13) hat, die durch die Seitenwände der Vorderseitenabdeckung (10) gebildet und zueinander ausgerichtet sind, und
    wobei mehrere Befestigungselemente (14) in den Montagelöchern (13) der Vorderseitenabdeckung (10) montiert sind, um die Vorderseitenabdeckung (10) mit dem Gehäuse (51) der Heftmaschine (50) zu verbinden.
  6. Heftmaschine (50) nach Anspruch 1 oder 5, wobei jede Nocke (21) des Verriegelungselements (20) wassertropfenförmig ist.
EP20090250558 2009-02-27 2009-02-27 Verriegelungsanordnung für ein Heftgerät Expired - Fee Related EP2223776B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20090250558 EP2223776B1 (de) 2009-02-27 2009-02-27 Verriegelungsanordnung für ein Heftgerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20090250558 EP2223776B1 (de) 2009-02-27 2009-02-27 Verriegelungsanordnung für ein Heftgerät

Publications (2)

Publication Number Publication Date
EP2223776A1 EP2223776A1 (de) 2010-09-01
EP2223776B1 true EP2223776B1 (de) 2011-11-30

Family

ID=40793042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090250558 Expired - Fee Related EP2223776B1 (de) 2009-02-27 2009-02-27 Verriegelungsanordnung für ein Heftgerät

Country Status (1)

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EP (1) EP2223776B1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1839818B1 (de) 2006-03-27 2008-09-10 Jui-Yuan Lin Heftpistole mit Verriegelungsvorrichtung
TWM335361U (en) * 2007-11-02 2008-07-01 Jann Yei Industry Co Ltd Nail gun with safety function

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EP2223776A1 (de) 2010-09-01

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