EP2240301A1 - Stapler - Google Patents

Stapler

Info

Publication number
EP2240301A1
EP2240301A1 EP08871379A EP08871379A EP2240301A1 EP 2240301 A1 EP2240301 A1 EP 2240301A1 EP 08871379 A EP08871379 A EP 08871379A EP 08871379 A EP08871379 A EP 08871379A EP 2240301 A1 EP2240301 A1 EP 2240301A1
Authority
EP
European Patent Office
Prior art keywords
lever
mode
stapler
stapler according
stapling
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.)
Granted
Application number
EP08871379A
Other languages
German (de)
French (fr)
Other versions
EP2240301B1 (en
Inventor
Reinhard Quaing
Ingo Heskamp
Bruno Ghibely
Armin Rutenberg
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.)
Erwin Mueller GmbH and Co
Original Assignee
Erwin Mueller GmbH and Co
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 Erwin Mueller GmbH and Co filed Critical Erwin Mueller GmbH and Co
Publication of EP2240301A1 publication Critical patent/EP2240301A1/en
Application granted granted Critical
Publication of EP2240301B1 publication Critical patent/EP2240301B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/02—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor with provision for bending the ends of the staples on to the work
    • B25C5/0221—Stapling tools of the table model type, i.e. tools supported by a table or the work during operation
    • B25C5/0242—Stapling tools of the table model type, i.e. tools supported by a table or the work during operation having a pivoting upper leg and a leg provided with an anvil supported by the table or 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 invention relates to a stapler with a base usually designed as a base and a usually pivotally fixed at the rear end of the lower part upper part.
  • a magazine for staples is usually located on the top.
  • the staplers of the prior art have the problem that they require a large space through the lever and / or - as in the stapler - allow only a very small paper insertion depth.
  • the invention is therefore an object of the invention to provide a stapler that builds small, with little effort to use and possibly has a large paper insertion depth. This object is achieved by a stapler with the features of claim 1.
  • the stapler can bring to the size of conventional staplers without leverage.
  • the stapler in this position which is referred to below as the basic mode or base position, even without the use of the lever can be used like a conventional stapler without force translator.
  • lever mode which causes stapling by pressure on the lever with power amplification, the lever is indeed from the top of the stapler, but also allows the stapling of heavy staple with low operating force, as the lever is bridged a long way. If the stapler is not in use, it can be moved to the base position with the lever in place, and thus does not require more space than a stapler without power amplification.
  • Fig. 7 shows the subject matter of Fig. 5 in the basic mode at the beginning of the stapling operation
  • Fig. 8 shows the subject matter of Fig. 7 in the basic mode at the end of the stapling operation.
  • Fig. 1 shows the stapler with its preferred, but not necessarily designed as a base base 1, an attached thereto in the illustrated embodiment pivotally fixed upper part 2 and connected to the upper part 2 at the free end of the lever 3, in the lever mode of Upper part 2 projects upwards, so that between the upper part 2 and lever 3, an angle is formed.
  • Fig. 2 shows the stapler also in the lever mode at the end of a stapling operation, wherein the upper part 2 was pressed down on the lower part 1 via the lever 3. In this case, the angle between the upper part 2 and the lever 3 has been reduced.
  • Figs. 3 and 4 show the stapler in the base mode, ie with non-active lever 3, which is therefore applied to the upper part 2.
  • Fig. 3 illustrates the time before the beginning of a stapling operation. This is also the position in which the stapler can be stowed or stored to save space.
  • the upper part 2 Tied end E of the lever 3 is then pressed down from the position in Fig. 3, the upper part 2 in the position shown in Fig. 4 on the lower part 1, whereby smaller amounts of paper can be stapled without the use of the lever 3.
  • a control button 4 can be seen, which serves to change between the lever mode according to FIGS. 1 and 2 and the basic mode according to FIGS. 3 and 4.
  • FIGS. 5 and 6 correspond to the positions of FIGS. 1 and 2
  • FIGS. 7 and 8 correspond to the positions of FIGS. 3 and 4.
  • lever 3 In the stapler of the embodiment of the lever 3 is pivotally connected to the upper part 2 about a pivot axis 21.
  • the upper part 2 is in turn hinged to the lower part 1 about a stapling axis 6 pivotally.
  • the stapling axis 6 is located at the rear end of the stapler to release a front insertion area 7 for not shown stapling.
  • the pivot axis 21 is in contrast arranged at the free end E of the upper part 2 and thus spaced as far as possible from the stapling axis 6.
  • lever 3 In the lever mode illustrated in FIGS. 5 and 6, lever 3, upper part 2 and lower part 1 therefore form a zigzag-shaped arrangement.
  • the actuation of the lever 3 is effected by pressure on the outer end A, whereby the upper part 2 is depressed to trigger the stapling operation at the opposite free end E on the lower part 1.
  • the lever 3 has a pressure element 8, which acts in the lever mode of FIGS. 5 and 6 on the upper part 2.
  • the stapler has a gear ratio.
  • This preferably has a drive element 11, which is in operative connection with the lever 3 - here via the pressure element 8 - and an output element 13, which is in operative connection with the lower part 1.
  • this operative connection is realized via a toothing, which can take place directly or indirectly as shown.
  • the illustrated embodiment thus has a three-axis gear ratio with the pivot axis 21 for the drive element 11, a pivot axis 22 for the transmission element 12 and a pivot axis 23 for the output element 13th
  • the stapler preferably has a cam guide, which may advantageously be part of the transmission as in the illustrated embodiment.
  • the cam guide is realized by a cam contour 33 of the driven element 13, which moves in the course of movement during the stapling process along a mounted on the lower part 1 guide roller 15.
  • the operation key 4 In order to transfer the stapler of the lever mode shown in Figs. 5 and 6 into the basic mode shown in Figs. 7 and 8, in the illustrated embodiment, the operation key 4 must be operated.
  • control button 4 is moved forward in the direction of the arrow 41 and thus at the same time shifts at least one fixing element, namely a locking element 17 and the pressure element 8 also forward in the direction 41. If now simultaneously the lever 3 is lowered, this can be parallel to the upper part 2 to the upper part 2 create.
  • the same also in the direction 41st pushed to the front pressure element 8 now no longer presses as shown in Fig. 5 and 6 on the drive element 11, but is spent in a relation to the upper part 2 ineffective position.
  • the pressure element 8 is immersed in a recess 31 of the drive element 11.
  • the stapler can now also be used in the basic mode according to FIGS. 7 and 8 without lever gain for stapling by the upper part 2 is pressed down as in conventional staplers at its free end E in the direction of the arrow P.
  • the operating key 4 must once again be moved forward in the direction 4 '. be pushed to unhook the locking element 17 from the opening D.
  • the outer end of the lever A must be raised in the direction of the arrow F, whereby the spring-biased for this purpose pressure element 8 again passes into its active position with operative connection to the drive element 11 as shown in FIGS. 5 and 6.
  • the control button 4 and the locking member 17 are also spring-biased against the direction 41, so that the control button 4 and the locking member 17 after a shift in direction 41 upon release of the control button 4 automatically move back to its rear position.
  • the stapler has a preferred operating mode (which may be either the base mode or the lever mode) into which the stapler automatically falls back after a stapling operation.
  • a preferred operating mode which may be either the base mode or the lever mode
  • one of the crucial fixing elements pressure element 8 or locking element 17
  • the stapling process itself but then solves the latch, for example, so that the device automatically falls back into the preferred operating mode after this single stapling operation. Should be stapled in the other, non-preferred operating mode, this must be initiated before each stapling operation, for example, by pressing an operator button.
  • the stapler according to the invention realized by its sophisticated design all the requirements and yet is mechanically stable and above all compact. It can be folded in a space-saving way (basic mode), like a conventional stapler without power amplification (basic mode) or by a force boost by lever arm without effort to staple even larger amounts of paper or be used by very strong stapled (lever mode).
  • basic mode like a conventional stapler without power amplification (basic mode) or by a force boost by lever arm without effort to staple even larger amounts of paper or be used by very strong stapled (lever mode).

Landscapes

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

Abstract

A stapler having a base part (1) and a top part (2) pivotally connected to the same, the free end (E) of which can be pushed down (lever mode) onto the base part (1) via a lever (3) for the force-reducing driving of a staple into a material to be stapled that is positioned on the base part (1), is configured according to the invention such that the stapler can be utilized for stapling without any lever force amplification in a second operating mode (base mode), and the lever (3) is placed on and fixed to the top part for this purpose. The stapling occurs via pressure that is exerted onto the free end (E) of the top part (2). A fixing element secures the selected mode. The lever (3) and/or the top part (2) may have an operating button (4) for changing between the lever mode and the base mode.

Description

Hefter stapler
Die Erfindung betrifft einen Hefter mit einem meist als Standfuß ausgebildeten Unterteil und einem üblicherweise am rückwärtigen Ende des Unterteils schwenkbar festgelegten Oberteil. Ein Magazin für Heftklammem befindet sich in der Regel am Oberteil. Durch Herunterdrücken des vorderen, freien Endes des Oberteils auf das Unterteil läßt sich jeweils eine Heftklammer in auf dem Unterteil aufliegendes Heftgut, beispielsweise einen Papierstapel, eindrücken, um diesen zu vertieften. Bei dickeren Papierstapeln oder festerem Papier kann es schwierig werden, die erforderliche Heftkraft durch direkten Druck auf das Oberteil aufzubringen.The invention relates to a stapler with a base usually designed as a base and a usually pivotally fixed at the rear end of the lower part upper part. A magazine for staples is usually located on the top. By pressing down the front, free end of the upper part on the lower part can each be a staple in lying on the lower part stapling, for example, a paper stack, press in order to deepen this. For thicker paper stacks or thicker paper, it may be difficult to apply the required stitching force by direct pressure on the top.
Es sind daher bereits Hefter entwickelt worden, bei denen die Heftkraft nicht durch direkten Druck auf das Oberteil, sondern mittelbar über einen Hebel aufgebracht wird. Die US-PS 7,140,526, das japanische Gebrauchsmuster 2084404, die US-OS 2002/0005427 A1 und die Veröffentlichung der Internationalen Anmeldung WO 03/082528 A1 zeigen beispielsweise derartige Geräte. Darüber hinaus sind z.B. aus der deutschen Gebrauchsmusterschrift 91 06 427 U1 oder der deutschen Veröffentlichung der Europäischen Patentschrift DE 694 12 890 T2 Heftzangen bekannt, die ebenfalls einen Hebel aufweisen, durch den die Aufbringung der erforderlichen Heftkraft vereinfacht ist.Therefore, staplers have already been developed in which the stitching force is not applied by direct pressure on the upper part, but indirectly via a lever. For example, US Patent 7,140,526, Japanese Utility Model 2084404, US-OS 2002/0005427 A1 and International Publication WO 03/082528 A1 show such devices. In addition, e.g. from German Utility Model 91 06 427 U1 or the German publication of the European patent DE 694 12 890 T2 stapling pliers, which also have a lever through which the application of the required stitching force is simplified.
Die Hefter aus dem Stand der Technik weisen demnach die Problematik auf, daß sie durch den Hebel einen großen Bauraum beanspruchen und/oder - wie bei den Heftzangen - eine nur sehr geringe Papiereinschubtiefe zulassen. Der Erfindung liegt daher die Aufgabe zugrunde, ein Heftgerät zu schaffen, das klein baut, mit geringem Kraftaufwand zu bedienen ist und möglichst eine große Papiereinschubtiefe aufweist. Diese Aufgabe wird erfindungsgemäß durch einen Hefter mit den Merkmalen des Anspruchs 1 gelöst.Accordingly, the staplers of the prior art have the problem that they require a large space through the lever and / or - as in the stapler - allow only a very small paper insertion depth. The invention is therefore an object of the invention to provide a stapler that builds small, with little effort to use and possibly has a large paper insertion depth. This object is achieved by a stapler with the features of claim 1.
Durch die Anordnung des Hebels derart, daß er für einen Basisbetriebsmodus ohne Hebelkraftverstärkung deaktivierbar und an das Oberteil anlegbar ist, läßt sich der Hefter auf die Baugröße herkömmlicher Hefter ohne Hebelübersetzung bringen. Bei kleinen Papierstapeln und geringer Menge an Heftgut kann der Hefter in dieser Position, die im Folgenden als Basismodus oder Basisposition bezeichnet ist, auch ohne Einsatz des Hebels wie ein herkömmlicher Hefter ohne Kraftübersetzer verwendet werden. Im Hebelmodus hingegen, der ein Heften durch Druck auf den Hebel mit Kraftverstärkung bewirkt, steht der Hebel zwar vom Oberteil des Hefters ab, ermöglicht damit aber auch das Heften schweren Heftguts mit geringer Betätigungskraft, da durch den Hebel ein großer Weg überbrückt wird. Ist der Hefter nicht in Gebrauch, kann er in die Basisposition mit angelegtem Hebel gebracht werden und benötigt so nicht mehr Platz, als Hefter ohne Kraftverstärkung.The arrangement of the lever such that it can be deactivated for a basic operating mode without lever gain and can be applied to the upper part, the stapler can bring to the size of conventional staplers without leverage. For small stacks of paper and a small amount of stapled material, the stapler in this position, which is referred to below as the basic mode or base position, even without the use of the lever can be used like a conventional stapler without force translator. In lever mode, however, which causes stapling by pressure on the lever with power amplification, the lever is indeed from the top of the stapler, but also allows the stapling of heavy staple with low operating force, as the lever is bridged a long way. If the stapler is not in use, it can be moved to the base position with the lever in place, and thus does not require more space than a stapler without power amplification.
Weitere Vorteile und Einzelheiten ergeben sich aus den Unteransprüchen und einem in den Zeichnungen dargestellten Ausführungsbeispiel, das im Folgenden erläutert wird; es zeigen:Further advantages and details will become apparent from the dependent claims and an embodiment illustrated in the drawings, which will be explained below; show it:
Fig. 1 bis 4 den Hefter in unterschiedlichen Positionen, jeweils in einer perspektivischen Ansicht schräg von vorne und einer Seitenansicht, Fig. 5 den Hefter im Hebelmodus vor Beginn des Heftvorgangs, zur1 to 4 the stapler in different positions, respectively in a perspective view obliquely from the front and a side view, Fig. 5 the stapler in the lever mode before the stapling operation, for
Verdeutlichung teilweise geschnitten und ohne Abdeckelemente, in Seitenansicht,Clarification partly cut and without cover elements, in side view,
Fig. 6 den Gegenstand aus Fig. 5 im Hebelmodus am Ende des Heftvorgangs,6 in the lever mode at the end of the stapling process,
Fig. 7 den Gegenstand aus Fig. 5 im Basismodus zu Beginn des Heftvorgangs undFig. 7 shows the subject matter of Fig. 5 in the basic mode at the beginning of the stapling operation and
Fig. 8 den Gegenstand aus Fig. 7 im Basismodus am Ende des Heftvorgangs.Fig. 8 shows the subject matter of Fig. 7 in the basic mode at the end of the stapling operation.
Fig. 1 zeigt den Hefter mit seinem bevorzugt, aber nicht zwingend als Standfuß ausgebildeten Unterteil 1 , einem daran bei der dargestellten Ausführungsform am hinteren Ende schwenkbeweglich festgelegten Oberteil 2 und einem mit dem Oberteil 2 an dessen freiem Ende verbundenen Hebel 3, der im Hebelmodus vom Oberteil 2 nach oben absteht, so daß zwischen Oberteil 2 und Hebel 3 ein Winkel ausgebildet ist. Fig. 2 zeigt den Hefter ebenfalls im Hebelmodus am Ende eines Heftvorgangs, wobei über den Hebel 3 das Oberteil 2 auf das Unterteil 1 heruntergedrückt wurde. Dabei hat sich auch der Winkel zwischen dem Oberteil 2 und dem Hebel 3 verringert.Fig. 1 shows the stapler with its preferred, but not necessarily designed as a base base 1, an attached thereto in the illustrated embodiment pivotally fixed upper part 2 and connected to the upper part 2 at the free end of the lever 3, in the lever mode of Upper part 2 projects upwards, so that between the upper part 2 and lever 3, an angle is formed. Fig. 2 shows the stapler also in the lever mode at the end of a stapling operation, wherein the upper part 2 was pressed down on the lower part 1 via the lever 3. In this case, the angle between the upper part 2 and the lever 3 has been reduced.
Die Fig. 3 und 4 zeigen den Hefter im Basismodus, d.h. mit nicht aktivem Hebel 3, der daher an das Oberteil 2 angelegt ist. Fig. 3 stellt den Zeitpunkt vor Beginn eines Heftvorgangs dar. Dies ist auch die Position, in der der Hefter platzsparend verstaut oder gelagert werden kann. Durch Druck auf das vordere mit dem Oberteil 2 ver- bundene Ende E des Hebels 3 wird dann ausgehend von der Position in Fig. 3 das Oberteil 2 in die in Fig. 4 dargestellte Position auf das Unterteil 1 heruntergedrückt, wodurch kleinere Papiermengen ohne den Einsatz des Hebels 3 geheftet werden können. Auf allen Figuren ist auf der Oberseite des Hebels 3 eine Bedientaste 4 zu sehen, die zum Wechsel zwischen dem Hebelmodus entsprechend Fig. 1 und 2 und dem Basismodus entsprechend Fig. 3 und 4 dient.Figs. 3 and 4 show the stapler in the base mode, ie with non-active lever 3, which is therefore applied to the upper part 2. Fig. 3 illustrates the time before the beginning of a stapling operation. This is also the position in which the stapler can be stowed or stored to save space. By pressing on the front with the upper part 2 Tied end E of the lever 3 is then pressed down from the position in Fig. 3, the upper part 2 in the position shown in Fig. 4 on the lower part 1, whereby smaller amounts of paper can be stapled without the use of the lever 3. In all figures, on the upper side of the lever 3, a control button 4 can be seen, which serves to change between the lever mode according to FIGS. 1 and 2 and the basic mode according to FIGS. 3 and 4.
Die genaue Funktion des Hefters wird anhand der Fig. 5 bis 8 näher erläutert, auf denen zur Vereinfachung die in den Fig. 1 bis 4 zu sehenden Abdeckelemente und Gehäuseteile des Hefters nicht oder teilweise geschnitten dargestellt sind. Die Fig. 5 und 6 entsprechen den Positionen der Fig. 1 und 2, während die Fig. 7 und 8 den Positionen der Fig. 3 und 4 entsprechen.The exact function of the stapler will be explained in more detail with reference to FIGS. 5 to 8, on which, for simplicity, the cover elements and housing parts of the stapler to be seen in FIGS. 1 to 4 are not shown or partially cut. FIGS. 5 and 6 correspond to the positions of FIGS. 1 and 2, while FIGS. 7 and 8 correspond to the positions of FIGS. 3 and 4.
Bei dem Hefter des Ausführungsbeispiels ist der Hebel 3 mit dem Oberteil 2 um eine Schwenkachse 21 verschwenkbar verbunden. Das Oberteil 2 ist wiederum am Unterteil 1 um eine Heftachse 6 schwenkbar angelenkt. Die Heftachse 6 befindet sich dabei am hinteren Ende des Hefters, um vorne einen Einschubbereich 7 für nicht dargestelltes Heftgut freizulassen. Die Schwenkachse 21 ist demgegenüber am freien Ende E des Oberteils 2 angeordnet und damit möglichst weit von der Heftachse 6 beabstandet. Im in den Fig. 5 und 6 dargestellten Hebelmodus bilden Hebel 3, Oberteil 2 und Unterteil 1 daher eine zickzackförmige Anordnung. Die Betätigung des Hebels 3 erfolgt durch Druck auf dessen äußeres Ende A, wodurch das Oberteil 2 zur Auslösung des Heftvorgangs am gegenüberliegenden freien Ende E auf das Unterteil 1 heruntergedrückt wird. Dazu besitzt der Hebel 3 ein Druckelement 8, das im Hebelmodus der Fig. 5 und 6 auf das Oberteil 2 einwirkt. Um einen möglichst langen Hebel 3 bei gleichzeitig großer Einschubtiefe für das Heftgut zu ermöglichen, weist der Hefter eine Getriebeübersetzung auf. Diese besitzt bevorzugt ein Antriebselement 11 , das mit dem Hebel 3 - hier über das Druckelement 8 - in Wirkverbindung steht und ein Abtriebselement 13, das mit dem Unterteil 1 in Wirkverbindung steht. Mechanisch einfach und dennoch sicher ist diese Wirkverbindung über eine Verzahnung, die direkt oder wie abgebildet indirekt erfolgen kann, zu realisieren. Bei einem sogenannten Gangwechsel, d.h. Hebelangriffsende A gegenüberliegend dem freien Ende E des Oberteils 2, ist zumindest ein Übertragungselement 12 zwischen dem Antriebselement 11 und dem Abtriebselement 13 notwendig. Die dargestellte Ausführungsform hat damit eine dreiachsige Getriebeübersetzung mit der Schwenkachse 21 für das Antriebselement 11 , einer Schwenkachse 22 für das Übertragungselement 12 und einer Schwenkachse 23 für das Abtriebselement 13.In the stapler of the embodiment of the lever 3 is pivotally connected to the upper part 2 about a pivot axis 21. The upper part 2 is in turn hinged to the lower part 1 about a stapling axis 6 pivotally. The stapling axis 6 is located at the rear end of the stapler to release a front insertion area 7 for not shown stapling. The pivot axis 21 is in contrast arranged at the free end E of the upper part 2 and thus spaced as far as possible from the stapling axis 6. In the lever mode illustrated in FIGS. 5 and 6, lever 3, upper part 2 and lower part 1 therefore form a zigzag-shaped arrangement. The actuation of the lever 3 is effected by pressure on the outer end A, whereby the upper part 2 is depressed to trigger the stapling operation at the opposite free end E on the lower part 1. For this purpose, the lever 3 has a pressure element 8, which acts in the lever mode of FIGS. 5 and 6 on the upper part 2. In order to allow the longest possible lever 3 with a large insertion depth for the stapled, the stapler has a gear ratio. This preferably has a drive element 11, which is in operative connection with the lever 3 - here via the pressure element 8 - and an output element 13, which is in operative connection with the lower part 1. Mechanically simple, yet safe, this operative connection is realized via a toothing, which can take place directly or indirectly as shown. In a so-called gear change, ie lever attack end A opposite the free end E of the upper part 2, at least one transmission element 12 between the drive element 11 and the output element 13 is necessary. The illustrated embodiment thus has a three-axis gear ratio with the pivot axis 21 for the drive element 11, a pivot axis 22 for the transmission element 12 and a pivot axis 23 for the output element 13th
Um während des Heftvorgangs verschiedene Übersetzungen zu ermöglichen, hat der Hefter bevorzugt eine Kurvenführung, die wie bei der dargestellten Ausführungsform auf vorteilhafte Weise Bestandteil des Getriebes sein kann. Bei dem Ausführungsbeispiel ist die Kurvenführung durch eine Kurvenkontur 33 des Abtriebselementes 13 verwirklicht, die sich im Bewegungsablauf während des Heftvorganges entlang einer am Unterteil 1 angebrachten Führungsrolle 15 bewegt. Durch die Kurvenkontur 33 mit einer zunächst steileren Flanke und einer sich daran anschließenden flacheren Kurve erfolgt bei kontinuierlichem Herunterdrücken des Hebels 3 zunächst eine starke Absenkung des freien Endes E des Oberteils 2, solange noch keine Kraft für das Eintreiben der Heftnadel benötigt wird, während im weiteren Verlauf des Abwärtsbewegung des Hebels 3 eine große Krafteinwirkung auf das Oberteil 2 bei nur noch geringer Abwärtsbewegung auftritt. Somit wird die über den ge- samten Heftvorgang insbesondere bei einer großen Papiermenge aufzubringende Kraft möglichst konstant und damit insgesamt gering gehalten.In order to allow different translations during the stapling operation, the stapler preferably has a cam guide, which may advantageously be part of the transmission as in the illustrated embodiment. In the embodiment, the cam guide is realized by a cam contour 33 of the driven element 13, which moves in the course of movement during the stapling process along a mounted on the lower part 1 guide roller 15. By the curve contour 33 with an initially steeper flank and a subsequent flatter curve is carried out with continuous depression of the lever 3, first a strong lowering of the free end E of the upper part 2, as long as no force is required for driving the stapling needle, while in the other Course of the downward movement of the lever 3, a large force on the upper part 2 occurs with only a slight downward movement. Thus, the velvet stapling especially when a large amount of paper applied force as constant as possible and thus kept low overall.
Um den Hefter vom in den Fig. 5 und 6 dargestellten Hebelmodus in den in Fig. 7 und 8 dargestellten Basismodus zu überführen, muß bei der abgebildeten Ausführungsform die Bedientaste 4 betätigt werden.In order to transfer the stapler of the lever mode shown in Figs. 5 and 6 into the basic mode shown in Figs. 7 and 8, in the illustrated embodiment, the operation key 4 must be operated.
Dazu wird die Bedientaste 4 nach vorne in Richtung des Pfeils 41 verschoben und verschiebt damit gleichzeitig zumindest ein Fixierelement, nämlich hier ein Verriegelungselement 17 und das Druckelement 8 ebenfalls nach vorne in Richtung 41. Wird nun gleichzeitig der Hebel 3 abgesenkt, so läßt sich dieser parallel zum Oberteil 2 an das Oberteil 2 anlegen. Das Verriegelungselement 17, das bevorzugt wie dargestellt hakenförmig ausgebildet ist, rastet dabei selbsttätig in einen Durchbruch D des O- berteils 2 ein und fixiert den Hebel in der in den Fig. 7 und 8 dargestellten Basisposition am Oberteil 2. Das ebenfalls gleichzeitig in Richtung 41 nach vorne verschobene Druckelement 8 drückt nun nicht mehr wie in Fig. 5 und 6 dargestellt auf das Antriebselement 11 , sondern wird in eine gegenüber dem Oberteil 2 wirkungslose Position verbracht. Bei der dargestellten Ausführungsform ist dies dadurch verwirklicht, daß das Druckelement 8 in eine Ausnehmung 31 des Antriebselementes 11 eintaucht. Der Hefter kann nun im Basismodus entsprechend den Fig. 7 und 8 ohne Hebelkraftverstärkung ebenfalls zum Heften benutzt werden, indem das Oberteil 2 wie bei herkömmlichen Heftern an seinem freien Ende E in Richtung des Pfeils P heruntergedrückt wird.For this purpose, the control button 4 is moved forward in the direction of the arrow 41 and thus at the same time shifts at least one fixing element, namely a locking element 17 and the pressure element 8 also forward in the direction 41. If now simultaneously the lever 3 is lowered, this can be parallel to the upper part 2 to the upper part 2 create. The locking element 17, which is preferably hook-shaped as shown, automatically engages in an opening D of the upper part 2 and fixes the lever in the base position shown in FIGS. 7 and 8 on the upper part 2. The same also in the direction 41st pushed to the front pressure element 8 now no longer presses as shown in Fig. 5 and 6 on the drive element 11, but is spent in a relation to the upper part 2 ineffective position. In the illustrated embodiment, this is realized in that the pressure element 8 is immersed in a recess 31 of the drive element 11. The stapler can now also be used in the basic mode according to FIGS. 7 and 8 without lever gain for stapling by the upper part 2 is pressed down as in conventional staplers at its free end E in the direction of the arrow P.
Soll bei dem Hefter vom Basismodus der Fig. 7 und 8 in den Hebelmodus der Fig. 5 und 6 mit Hebelkraftverstärkung übergewechselt werden, so muß bei der dargestellten Ausführungsform wiederum die Bedientaste 4 nach vorne in Richtung 4' ver- schoben werden, um das Verriegelungselement 17 aus dem Durchbruch D auszuhaken. Gleichzeitig muß das äußere Hebelende A in Richtung des Pfeils F angehoben werden, wodurch das zu diesem Zweck federvorgespannte Druckelement 8 wieder in seine aktive Stellung mit Wirkverbindung auf das Antriebselement 11 entsprechend den Fig. 5 und 6 übergeht. Als oberer Anschlag für den Hebel 3 dient dabei eine Achse 5 im Oberteil 2. Bei der dargestellten Ausführungsform sind die Be- dientaste 4 und das Verriegelungselement 17 ebenfalls entgegen der Richtung 41 federvorgespannt, so daß sich die Bedientaste 4 und das Verriegelungselement 17 nach einer Verschiebung in Richtung 41 bei Freigabe der Bedientaste 4 wieder automatisch in ihre hintere Position zurückbewegen.If the stapler is to be transferred from the basic mode of FIGS. 7 and 8 into the lever mode of FIGS. 5 and 6 with lever force amplification, then in the illustrated embodiment the operating key 4 must once again be moved forward in the direction 4 '. be pushed to unhook the locking element 17 from the opening D. At the same time the outer end of the lever A must be raised in the direction of the arrow F, whereby the spring-biased for this purpose pressure element 8 again passes into its active position with operative connection to the drive element 11 as shown in FIGS. 5 and 6. As the upper stop for the lever 3 serves an axis 5 in the upper part 2. In the illustrated embodiment, the control button 4 and the locking member 17 are also spring-biased against the direction 41, so that the control button 4 and the locking member 17 after a shift in direction 41 upon release of the control button 4 automatically move back to its rear position.
Der lediglich als Ausführungsbeispiel dargestellte, die erfinderische Gesamtidee jedoch keineswegs einschränkende Hefter ist damit konstruktiv so ausgebildet, daß der Hebelmodus und der Basismodus gleichrangig sind. Jeder Benutzer kann daher den von ihm überwiegend bevorzugten Betriebsmodus eingestellt lassen.The illustrated only as an exemplary embodiment, the inventive overall idea, however, by no means limiting stapler is so constructively designed so that the lever mode and the basic mode are of equal importance. Each user can therefore leave the predominantly preferred operating mode set by him.
In einer alternativen, nicht dargestellten Ausführungsform hat der Hefter einen bevorzugten Betriebsmodus (das kann entweder der Basismodus oder der Hebelmodus sein), in den das Gerät nach einem Heftvorgang selbsttätig zurückfällt. Dazu muß eines der entscheidenden Fixierelemente (Druckelement 8 oder Verriegelungselement 17) durch eine Klinke oder eine ähnliche Maßnahme für die Dauer eines Heftvorganges im temporär gewählten Betriebsmodus gehalten werden. Der Heftvorgang selbst löst dann aber beispielsweise die Klinke, so daß das Gerät nach diesem einzigen Heftvorgang automatisch wieder in den bevorzugten Betriebsmodus zurückfällt. Soll in dem anderen, nicht bevorzugten Betriebsmodus geheftet werden, muß dies vor jedem einzelnen Heftvorgang beispielsweise durch Betätigung einer Bedientaste eingeleitet werden. Der erfindungsgemäße Hefter verwirklicht durch seine raffinierte Konstruktion alle gestellten Anforderungen und ist doch mechanisch stabil und vor allem kompakt aufgebaut. Er kann platzsparend zusammengelegt werden (Basismodus), wie ein herkömmlicher Hefter ohne Kraftverstärkung benutzt werden (Basismodus) oder ü- ber eine Kraftverstärkung durch Hebelarm ohne Anstrengung zum Heften auch größerer Papiermengen oder von sehr festem Heftgut verwendet werden (Hebelmodus). Bei Verwendung einer Getriebeübersetzung läßt sich ein langer Hebelarm und damit ein geringer Kraftaufwand für den Heftvorgang bei gleichzeitig großer Einschubtiefe für das Heftgut verwirklichen. In an alternative embodiment, not shown, the stapler has a preferred operating mode (which may be either the base mode or the lever mode) into which the stapler automatically falls back after a stapling operation. For this purpose, one of the crucial fixing elements (pressure element 8 or locking element 17) must be held by a pawl or a similar measure for the duration of a stapling operation in the temporarily selected operating mode. The stapling process itself but then solves the latch, for example, so that the device automatically falls back into the preferred operating mode after this single stapling operation. Should be stapled in the other, non-preferred operating mode, this must be initiated before each stapling operation, for example, by pressing an operator button. The stapler according to the invention realized by its sophisticated design all the requirements and yet is mechanically stable and above all compact. It can be folded in a space-saving way (basic mode), like a conventional stapler without power amplification (basic mode) or by a force boost by lever arm without effort to staple even larger amounts of paper or be used by very strong stapled (lever mode). When using a gear ratio, a long lever arm and thus a small amount of force for the stapling process at the same time large insertion depth for the stapled material can be realized.

Claims

Patentansprüche claims
1. Hefter mit einem Unterteil (1 ) und einem mit diesem schwenkbar verbundenen Oberteil (2), dessen freies Ende (E) zum kraftverminderten Eintreiben einer Heftklammer in auf dem Unterteil (1) aufliegendes Heftgut mittels eines Hebels (3) auf das Unterteil (1) herunterdrückbar ist (Hebelmodus), dadurch gekennzeichnet, daß der Hefter in einem zweiten Betriebsmodus (Basismodus) ohne Hebelkraftverstärkung zum Heften nutzbar ist und der Hebel (3) dazu an das Oberteil (2) anlegbar am Hefter angeordnet ist.1. Stapler having a lower part (1) and a pivotally connected thereto upper part (2), the free end (E) for power reduced driving a staple in on the lower part (1) lying stapled by means of a lever (3) on the lower part ( 1) can be pressed down (lever mode), characterized in that the stapler in a second operating mode (basic mode) is usable without stapling for stapling and the lever (3) to the upper part (2) can be placed on the stapler.
2. Hefter nach Anspruch 1 , gekennzeichnet durch eine Ausgestaltung, bei der im Basismodus Heftungen durch Druck auf das freie Ende (E) des Oberteils (2) erfolgen.2. Stapler according to claim 1, characterized by an embodiment in which stapling in the base mode by pressure on the free end (E) of the upper part (2).
3. Hefter nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß der Hebelmodus und der Basismodus konstruktiv gleichrangig ausgebildet sind, so daß der Hefter nach einem Heftvorgang im gewählten Modus verbleibt.3. Stapler according to one of the preceding claims, characterized in that the lever mode and the basic mode are designed structurally equal, so that the stapler remains after a stapling operation in the selected mode.
4. Hefter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Betriebsmodus konstruktiv bevorzugt ausgebildet ist, so daß der Hebel nach jedem Heftvorgang wieder die Position des bevorzugten Betriebsmodus einnimmt.4. Stapler according to claim 1 or 2, characterized in that an operating mode is constructively preferred, so that the lever again assumes the position of the preferred operating mode after each stapling operation.
5. Hefter nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß zumindest ein Fixierelement den gewählten Modus sichert. 5. Stapler according to one of the preceding claims, characterized in that at least one fixing element secures the selected mode.
6. Hefter nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß der Hebel (3) mit dem Oberteil (2) um eine Schwenkachse (21) verschwenkbar verbunden ist.6. Stapler according to one of the preceding claims, characterized in that the lever (3) with the upper part (2) about a pivot axis (21) is pivotally connected.
7. Hefter nach Anspruch 6, dadurch gekennzeichnet, daß die Schwenkachse (21) am freien Ende (E) des Oberteils (2) angeordnet ist.7. Stapler according to claim 6, characterized in that the pivot axis (21) at the free end (E) of the upper part (2) is arranged.
8. Hefter nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß der Hebel (3) und/oder das Oberteil (2) eine Bedientaste (4) zum Wechsel zwischen Hebelmodus und Basismodus aufweist.8. Stapler according to one of the preceding claims, characterized in that the lever (3) and / or the upper part (2) has a control button (4) for switching between lever mode and basic mode.
9. Hefter nach Anspruch 8, dadurch gekennzeichnet, daß die Bedientaste (4) auf ein Verriegelungselement (17) einwirkt, das den Hebel (3) im Basismodus am Oberteil (2) angelegt fixiert.9. Stapler according to claim 8, characterized in that the control button (4) acts on a locking element (17) which fixes the lever (3) in the base mode on the upper part (2) fixed.
10. Hefter nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß der Hebel (3) ein Druckelement (8) aufweist, das im Hebelmodus auf das Oberteil (2) einwirkt.10. Stapler according to one of the preceding claims, characterized in that the lever (3) has a pressure element (8) which acts in the lever mode on the upper part (2).
11. Hefter nach Anspruch 10, dadurch gekennzeichnet, daß das Druckelement (8) am Hebel (3) verschiebbar befestigt ist.11. Stapler according to claim 10, characterized in that the pressure element (8) on the lever (3) is slidably mounted.
12. Hefter nach Anspruch 8 oder 9 und Anspruch 10 oder 11 , dadurch gekennzeichnet, daß die Bedientaste (4) derart auf das Druckelement (8) einwirkt, daß sie einen Wechsel vom Hebelmodus in den Basismodus und/oder umgekehrt auslösen kann. 12. Stapler according to claim 8 or 9 and claim 10 or 11, characterized in that the operating button (4) acts on the pressure element (8) in such a way that it can trigger a change from the lever mode to the base mode and / or vice versa.
13. Hefler nach einem der vorigen Ansprüche, gekennzeichnet durch eine Getriebeübersetzung zwischen dem Hebel (3) und dem Oberteil (2).13. Hefler according to one of the preceding claims, characterized by a gear ratio between the lever (3) and the upper part (2).
14. Hefter nach Anspruch 13, dadurch gekennzeichnet, daß die Getriebeübersetzung ein Antriebselement (11), auf das der Hebel (3) einwirkt, und ein Abtriebselement (13), das mit dem Unterteil (2) in Wirkverbindung steht, aufweist.14. Stapler according to claim 13, characterized in that the gear ratio, a drive element (11) on which the lever (3) acts, and an output element (13) which is in operative connection with the lower part (2) comprises.
15. Hefter nach Anspruch 14, dadurch gekennzeichnet, daß das Antriebselement (11) und Abtriebselement (13) direkt oder indirekt verzahnend miteinander in Wirkverbindung stehen.15. Stapler according to claim 14, characterized in that the drive element (11) and output element (13) are directly or indirectly interlocking with each other in operative connection.
16. Hefter nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß die Getriebeübersetzung zumindest dreiachsig mit einem Übertragungselement (12) zwischen Antriebs- (11) und Abtriebselement (13) ausgebildet ist.16. Stapler according to claim 14 or 15, characterized in that the gear ratio is formed at least three-axis with a transmission element (12) between the drive (11) and output element (13).
17. Hefter nach wenigstens einem der Ansprüche 10 bis 12 und einem der Ansprüche 14 bis 16, dadurch gekennzeichnet, daß das Druckelement (3) im Hebelmodus auf das Antriebselement (11) einwirkt.17. Stapler according to at least one of claims 10 to 12 and one of claims 14 to 16, characterized in that the pressure element (3) in the lever mode to the drive element (11) acts.
18. Hefter nach Anspruch 17, dadurch gekennzeichnet, daß das Druckelement (8) im Basismodus in eine Ausnehmung (31) des Antriebselements (11) eintaucht.18. Stapler according to claim 17, characterized in that the pressure element (8) in the base mode in a recess (31) of the drive element (11) is immersed.
19. Hefter nach Anspruch 13 bis 18, dadurch gekennzeichnet, daß die Getriebeübersetzung eine Kurvenführung aufweist. 19. Stapler according to claim 13 to 18, characterized in that the gear ratio has a cam guide.
20. Hefter nach Anspruch 19, dadurch gekennzeichnet, daß die Kurvenführung derart ausgebildet ist, daß sie über den Heftvorgang bei gleichmäßiger Krafteinbringung zunächst eine größere Absenkung und zum Ende eine nur noch geringe Absenkung des Oberteils (2) bewirkt. 20. Stapler according to claim 19, characterized in that the cam guide is designed such that it causes a greater reduction and the end only a slight lowering of the upper part (2) on the stapling process with uniform force introduction first.
EP08871379.7A 2008-01-21 2008-12-03 Stapler Active EP2240301B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008005426A DE102008005426A1 (en) 2008-01-21 2008-01-21 stapler
PCT/EP2008/010221 WO2009092418A1 (en) 2008-01-21 2008-12-03 Stapler

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EP2240301A1 true EP2240301A1 (en) 2010-10-20
EP2240301B1 EP2240301B1 (en) 2016-06-01

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EP (1) EP2240301B1 (en)
CN (1) CN101945737B (en)
DE (1) DE102008005426A1 (en)
DK (1) DK2240301T3 (en)
ES (1) ES2588909T3 (en)
WO (1) WO2009092418A1 (en)

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Publication number Priority date Publication date Assignee Title
CN109895522A (en) * 2019-04-11 2019-06-18 罗福斯办公用品（滁州）有限公司 A kind of stapler gear drive

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US2658197A (en) 1950-06-05 1953-11-10 William G Pankonin Stapling machine
DE3139995A1 (en) * 1981-10-08 1983-04-28 SOENNECKEN Gesellschaft für Büroorganisation mbH, 6000 Frankfurt Stapling tool
GB2148773A (en) * 1983-10-28 1985-06-05 Pao Wang Stapler
JPH0650143Y2 (en) * 1988-06-06 1994-12-21 マックス株式会社 Stapler
JP2723137B2 (en) 1988-06-17 1998-03-09 三井化学株式会社 Olefin polymerization method and olefin polymerization catalyst
DE9106427U1 (en) 1991-05-24 1991-08-29 Elastic GmbH, 6500 Mainz Stapling pliers
US5364000A (en) 1993-04-14 1994-11-15 Stanley-Bostitch, Inc. Stapling plier
JP2000210883A (en) * 1999-01-19 2000-08-02 Mitsuo Osame Stapler with remover
JP4590694B2 (en) 2000-07-14 2010-12-01 マックス株式会社 Booster mechanism of stapler
JP4062948B2 (en) 2002-03-29 2008-03-19 マックス株式会社 Stapler
GB0402190D0 (en) * 2004-01-31 2004-03-03 Rakhra Balraj Dual angle office stapler
US7140526B2 (en) 2004-12-27 2006-11-28 Plus Stationary Corporation Stapler
CN100406272C (en) * 2004-12-31 2008-07-30 普乐士文具股份有限公司 Stapler

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Also Published As

Publication number Publication date
EP2240301B1 (en) 2016-06-01
DK2240301T3 (en) 2016-09-12
WO2009092418A1 (en) 2009-07-30
CN101945737A (en) 2011-01-12
CN101945737B (en) 2012-06-06
ES2588909T3 (en) 2016-11-07
DE102008005426A1 (en) 2009-07-23

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