EP0456631A1 - Self-inking hand stamp - Google Patents

Self-inking hand stamp Download PDF

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Publication number
EP0456631A1
EP0456631A1 EP91890071A EP91890071A EP0456631A1 EP 0456631 A1 EP0456631 A1 EP 0456631A1 EP 91890071 A EP91890071 A EP 91890071A EP 91890071 A EP91890071 A EP 91890071A EP 0456631 A1 EP0456631 A1 EP 0456631A1
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EP
European Patent Office
Prior art keywords
stamp
inking
roller
pivot
inking roller
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Granted
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EP91890071A
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German (de)
French (fr)
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EP0456631B1 (en
Inventor
Paul Fehling
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Walter Just GmbH
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Walter Just GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
    • B41K1/00—Portable hand-operated devices without means for supporting or locating the articles to be stamped, i.e. hand stamps; Inking devices or other accessories therefor
    • B41K1/36—Details
    • B41K1/38—Inking devices; Stamping surfaces
    • B41K1/40—Inking devices operated by stamping movement
    • B41K1/42—Inking devices operated by stamping movement with pads or rollers movable for inking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
    • B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
    • B41K3/54—Inking devices
    • B41K3/60—Inking devices using rollers, e.g. rollers with integral ink-supply devices

Definitions

  • the invention relates to a self-inking stamp having a preferably housing-shaped lower part which can be placed on the surface to be stamped, a linearly guided stamping insert which can be displaced in this direction against spring force and which carries a pressure plate or the like, and one of two swivel arms mounted in the lower part held, even the ink supply receiving ink roller, which rests in the rest position of the stamp insert under the action of a return spring assigned to the swivel arms on the edge of the stamp insert opposite the swivel bearing of the swivel arms, during its movement towards the contact surface by the swiveling of the swivel arms under forced delivery of ink the pressure plate or the like rolls and finally evades the stamp insert sideways.
  • Such a self-inking stamp is already known (DE-AS 1 020 648).
  • the inking roller is not only held at the free ends of the swivel arms, but with its extended axis is guided on both sides in slits of the two opposite walls of the lower part that are oblique to the direction of movement of the stamp insert, the swivel levers also having no bores for the inking roller, but rather with a fork two tines are formed.
  • the inking roller therefore executes a longitudinal movement in the oblique slots of the lower part side walls on the one hand, and on the other hand between the fork-shaped prongs of the swivel levers.
  • the swivel levers have a common swivel axis, but they are not rigidly connected to it, but merely screwed onto the axis, the swivel levers also being outside the lower part.
  • the pivot bearing of the pivot lever is arranged in the projection onto the contact surface within the stamp insert or even the pressure plate attached to it.
  • the two swivel arms Since the two swivel arms have no rigid connection with one another, they can to a certain extent carry out swivel movements independently of one another, which can give rise to jamming or tilting of the inking roller in their guides. Due to the arrangement of the swivel axis of the swivel arm above the stamp insert or the pressure plate, the swivel arms inevitably come into a position in the stamp movement in which they are aligned with the contact surface, i.e. are in a certain dead center position, which allows the swivel arms to move smoothly with the Ink roller inhibits.
  • a self-inking stamp is already known (GB-PS 398 754, US-PS 2 012 472), in which the two swivel arms lie within the side walls of the lower part and their swivel bearings in the projection onto the contact surface next to the edge of the parallel to the inking roller Stamp insert are arranged. It serves the roller, however, only for applying the ink to the printing plate or the like and not as a carrier for the ink supply. Rather, when the stamp insert is pressed down, the inking roller must first roll over a porous plate or the like fed by a collector on the side of the stamp insert before it reaches the printing plate or the like.
  • the stamp When the stamp is used after a long pause, there is hardly any inking of the printing plate or the like during the first printing process, because the thin ink coating has dried on the roller and the roller only when the stamp insert drops over the porous plate or the like Ink pickup rolls.
  • Other disadvantages are the large height and the other relatively large dimensions, which result from the cumbersome and inadequate coloring process.
  • the inking roller is not interchangeable and the two swivel arms can perform relative movements in an unfavorable manner, since they are only connected to one another by the roller and are each loaded by a spring.
  • the invention is therefore based on the object to remedy these shortcomings and to provide a self-inking stamp of the type described, in which full functional reliability is guaranteed with regard to the pivoting lever movement, a simplified construction is achieved and the ink roller can be replaced easily and without risk of contamination for the operator is.
  • the invention solves this problem first in that the two pivot arms lying in a conventional manner within the side walls of the lower part are connected by a transverse part forming their pivot shaft to a rigid bracket, the pivot bearing, as is also known per se, in the projection the contact area is arranged next to the edge of the stamp insert parallel to the inking roller.
  • the simultaneous and uniform swiveling movement of both swivel arms is ensured, so that there can be no canting or jamming, especially since the inking roller is only supported on the swivel arms and no additional slot guide or the like in the lower part needs, which also entails a corresponding design simplification.
  • the pivot bearing of the bracket is arranged in the projection onto the contact surface next to the edge of the stamp insert parallel to the ink roller, a dead center position is avoided during the entire pivoting movement of the bracket or the pivot arms, so that no malfunctions can occur.
  • the swivel arms or brackets are or are arranged within the housing-shaped lower part, so that when the stamp is used, these otherwise disruptive moving parts are covered and invisible.
  • the swivel bearing of the bracket is formed by at least one approximately half-shell-shaped extension of the housing wall of the lower part; the cross part of the bracket forming the swivel shaft therefore only needs to be inserted into this half-shell. Since the housing-shaped lower part will usually be made in two parts, it is then expedient to use the other Provide housing part noses or the like. To prevent the inserted swivel shaft from escaping from the half-shell-shaped attachment.
  • one of the two pivot levers at its free end has a bore for receiving a journal of the inking roller, which has a widened head which can be elastically compressed by slitting, whereas the other pivoting lever is provided with a bearing hole corresponding to the ink roller size diameter.
  • the housing-shaped lower part has insertion or ejection holes in its side walls in the region of the pivoting movement path of the inking roller.
  • an inking roller can thus be inserted with its bearing pin ahead through the bearing hole, the bearing pin then penetrating into the bore of the opposite pivot lever on the other side, with its head being elastically compressed.
  • the head widening again entails the necessary fixing of the inking roller in the axial direction.
  • it is only necessary to press on the head of the journal through the ejection hole in the side wall of the lower part in order to be able to move or eject the inking roller in the opposite direction, that is to the bearing hole.
  • the inking roller is provided with a slot on a pin Head rotatable disc in the bearing hole of the pivot lever concerned.
  • every new ink roller at the end with the rotatable disc has a handle attachment with a predetermined breaking point.
  • the inking roller is thus gripped on this handle attachment and inserted into the stamp or into the bracket, after which the handle attachment is then broken off.
  • Several inking rollers with a handle attachment can be packed together as a supply. There is also no fear of getting dirty when ejecting the used ink rollers, since they only need to be pushed out of the stamp with a suitable tool.
  • the self-inking stamp has a housing-shaped lower part 1 which can be placed on the surface to be stamped, and a stamp insert 3 which is guided in a straight line and can be displaced toward the contact surface against the force of a spring 2 and which carries a pressure plate 4 or the like.
  • a stamp insert 3 which is guided in a straight line and can be displaced toward the contact surface against the force of a spring 2 and which carries a pressure plate 4 or the like.
  • two swivel arms 5 are arranged, which are connected to a rigid bracket by a transverse part 6 forming their swivel shaft.
  • the pivot bearings of this bracket 5, 6 are formed by approximately half-shell-shaped lugs 7 of the housing wall of the lower part 1. In the vertical projection the contact surface, the pivot bearings or the half-shells 7 are arranged next to the stamp insert 3, as can be clearly seen in FIG. 1.
  • the swivel arms 5 hold an inking roller 8 which, in the rest position of the stamp insert 3 drawn in solid lines in FIGS. 1 and 2, bears against the edge of the stamp insert 3 opposite the pivot bearing 7.
  • the swivel arms 5 and the bracket 6 are or is under the action of a return spring 9, which tends to move the bracket upwards, i. H. to press the ink roller 8 against the pressure plate 4.
  • the inking roller 8 rolls over the pressure plate 4 and finally evades the stamp insert 3 (dashed position according to FIGS. 1 and 2).
  • the lower part 1 For mounting or ejecting the inking roller 8, the lower part 1 is provided in its side walls in the region of the pivoting movement path of the inking roller 8 with insertion or ejection holes 10.
  • One of the two pivot levers 5 (the right one in FIGS. 2 and 3) has at its free end a bore 11 for receiving a bearing journal 12 of the inking roller 8, which has a widened head 13 that can be elastically compressed by slitting.
  • the other (left) pivot lever 5 is provided with a bearing hole 14 corresponding to the ink roller size diameter, the ink roller 8 being mounted in the bearing hole 14 of the respective pivot lever 5 with a disk 16 which can also be rotated on a pin 15 with a slotted head.
  • the inking roller 8 or the rotatable disk 16 is equipped with a handle attachment 18 connected to it via a predetermined breaking point 17.

Abstract

A self-inking hand stamp has a lower part (1) to be placed on the surface to be stamped, a stamp insert which is guided in said lower part rectilinearly, can be displaced towards the set-down surface against spring force and supports a printing plate (4) or the like, and an inking roller (8) which is held by two pivoting arms (5) mounted in the lower part (1) and itself receives the ink supply. In the rest position of the stamp insert (3), the inking roller (8) bears against the edge of the stamp insert (3) opposite the pivot bearing (7) of the pivot arm (5) under the action of a return spring (9) assigned to the pivot arms (5). On movement of the stamp insert towards the set-down surface, the inking roller (8) rolls over the printing plate (4) or the like, delivering ink, finally to be deflected to the side of the stamp insert (3). In order, with more simple construction, to ensure perfect operation, the two pivot arms (5) lying inside the side walls of the lower part (1) are connected to form a rigid bow (5, 6) by a transverse part (6) forming their pivot shaft. The pivot bearing (7) of this bow (5, 6) is arranged in the projection onto the set-down surface next to the edge of the stamp insert (3) parallel to the inking roller (8). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Selbstfärbestempel mit einem auf die zu stempelnde Fläche aufsetzbaren, vorzugsweise gehäuseförmigen Unterteil, einem in diesem geradlinig geführten, gegen Federkraft zur Aufsetzfläche hin verschiebbaren, eine Druckplatte od. dgl. tragenden Stempeleinsatz und einer von zwei im Unterteil gelagerten Schwenkarmen auswechselbar gehaltenen, selbst den Farbvorrat aufnehmenden Farbwalze, die in der Ruhestellung des Stempeleinsatzes unter der Wirkung einer den Schwenkarmen zugeordneten Rückholfeder an dem dem Schwenklager der Schwenkarme gegenüberliegenden Rand des Stempeleinsatzes anliegt, bei dessen Bewegung zur Aufsetzfläche hin durch das dabei erzwungene Schwenken der Schwenkarme unter Farbabgabe über die Druckplatte od. dgl. rollt und dem Stempeleinsatz schließlich seitwärts ausweicht.The invention relates to a self-inking stamp having a preferably housing-shaped lower part which can be placed on the surface to be stamped, a linearly guided stamping insert which can be displaced in this direction against spring force and which carries a pressure plate or the like, and one of two swivel arms mounted in the lower part held, even the ink supply receiving ink roller, which rests in the rest position of the stamp insert under the action of a return spring assigned to the swivel arms on the edge of the stamp insert opposite the swivel bearing of the swivel arms, during its movement towards the contact surface by the swiveling of the swivel arms under forced delivery of ink the pressure plate or the like rolls and finally evades the stamp insert sideways.

Ein solcher Selbstfärbestempel ist bereits bekannt (DE-AS 1 020 648). Dabei ist die Farbwalze aber nicht bloß an den freien Enden der Schwenkarme gehalten, sondern mit ihrer verlängerten Achse beidseitig in zur Bewegungsrichtung des Stempeleinsatzes schrägen Schlitzen der beiden gegenüberliegenden Wände des Unterteiles geführt, wobei auch die Schwenkhebel keine Bohrungen für die Farbwalze aufweisen, sondern gabelförmig mit zwei Zinken ausgebildet sind. Bei der Stempelbewegung des Stempeleinsatzes führt also die Farbwalze einerseits eine Längsbewegung in den schrägen Schlitzen der Unterteilseitenwände, anderseits zwischen den gabelförmigen Zinken der Schwenkhebel aus. Die Schwenkhebel besitzen zwar eine gemeinsame Schwenkachse, sie sind aber mit dieser nicht starr verbunden, sondern an der Achse bloß angeschraubt, wobei die Schwenkhebel außerdem außerhalb des Unterteiles liegen. Schließlich ist das Schwenklager der Schwenkhebel in der Projektion auf die Aufsetzfläche innerhalb des Stempeleinsatzes bzw. sogar der an diesem befestigten Druckplatte angeordnet. Daraus ergeben sich verschiedene beträchtliche Nachteile.Such a self-inking stamp is already known (DE-AS 1 020 648). However, the inking roller is not only held at the free ends of the swivel arms, but with its extended axis is guided on both sides in slits of the two opposite walls of the lower part that are oblique to the direction of movement of the stamp insert, the swivel levers also having no bores for the inking roller, but rather with a fork two tines are formed. During the stamp movement of the stamp insert, the inking roller therefore executes a longitudinal movement in the oblique slots of the lower part side walls on the one hand, and on the other hand between the fork-shaped prongs of the swivel levers. The swivel levers have a common swivel axis, but they are not rigidly connected to it, but merely screwed onto the axis, the swivel levers also being outside the lower part. In the end the pivot bearing of the pivot lever is arranged in the projection onto the contact surface within the stamp insert or even the pressure plate attached to it. There are several significant drawbacks to this.

Da die beiden Schwenkarme keine starre Verbindung miteinander aufweisen, können sie in einem gewissen Maße voneinander unabhängig Schwenkbewegungen durchführen, was zu einer Verklemmung bzw. Verkantung der Farbwalze in ihren Führungen Anlaß geben kann. Durch die Anordnung der Schwenkachse der Schwenkarm oberhalb des Stempeleinsatzes bzw. der Druckplatte gelangen die Schwenkarme bei der Stempelbewegung zwangsläufig in eine Stellung, in der sie zur Aufsetzfläche normal ausgerichtet sind, also sich in einer gewissen Totpunktlage befinden, die eine einwandfreie Weiterbewegung der Schwenkarme mit der Farbwalze hemmt. Durch die gabelförmige Schlitzung der Schwenkhebelenden, wobei die beiden Zinken ungleich lang ausgebildet sind, ist es zwar möglich, die Farbwalze in der untersten Stellung, in der sie dem gegen die Aufsetzfläche gedrückten Stempeleinsatz ausweicht, unter Verbiegen der Schwenkhebel auszuwechseln, jedoch muß dabei zwangsläufig die ganze Farbwalze angegriffen werden, was unweigerlich eine entsprechende Verschmutzung der Finger mit sich bringt. Schließlich besteht eine gewisse Verletzungsgefahr bzw. eine Funktionsbeeinträchtigung, wenn die beiden Schwenkhebel außerhalb des Unterteiles ihre Schwenkbewegung ausführen müssen.Since the two swivel arms have no rigid connection with one another, they can to a certain extent carry out swivel movements independently of one another, which can give rise to jamming or tilting of the inking roller in their guides. Due to the arrangement of the swivel axis of the swivel arm above the stamp insert or the pressure plate, the swivel arms inevitably come into a position in the stamp movement in which they are aligned with the contact surface, i.e. are in a certain dead center position, which allows the swivel arms to move smoothly with the Ink roller inhibits. Due to the fork-shaped slot of the swivel lever ends, the two tines being of unequal length, it is possible to replace the ink roller in the lowest position, in which it dodges the stamp insert pressed against the contact surface, by bending the swivel lever, but this must inevitably mean that whole ink roller are attacked, which inevitably brings about a corresponding contamination of the fingers. Finally, there is a certain risk of injury or functional impairment if the two pivot levers have to perform their pivoting movement outside the lower part.

Es ist zwar auch schon ein Selbstfärbestempel bekannt (GB-PS 398 754, US-PS 2 012 472), bei dem die beiden Schwenkarme innerhalb der Seitenwände des Unterteiles liegen und ihre Schwenklager in der Projektion auf die Aufsetzfläche neben dem zur Farbauftragwalze parallelen Rand des Stempeleinsatzes angeordnet sind. Dabei dient die Walze aber nur zum Auftragen der Farbe auf die Druckplatte od. dgl. und nicht als Träger des Farbvorrates. Die Farbauftragwalze muß vielmehr beim Niederdrücken des Stempeleinsatzes zunächst über eine von einem Sammler gespeiste poröse Platte od. dgl. an der Seite des Stempeleinsatzes rollen, bevor sie zur Druckplatte od. dgl. gelangt. Bei der Benützung des Stempels nach längerer Pause findet daher beim ersten Druckvorgang kaum ein Einfärben der Druckplatte od. dgl. statt, weil der dünne Farbbelag auf der Walze eingetrocknet ist und die Walze erst beim Rückgang des Stempeleinsatzes über die poröse Platte od. dgl. zur Farbaufnahme rollt. Weitere Nachteile sind die große Bauhöhe und die übrigen verhältnismäßig großen Abmessungen, die sich durch den umständlichen und mangelhaften Einfärbevorgang ergeben. Die Farbauftragwalze ist nicht auswechselbar und die beiden Schwenkarme können in ungünstiger Weise Relativbewegungen ausführen, da sie nur durch die Walze miteinander verbunden und durch je eine Feder belastet sind.A self-inking stamp is already known (GB-PS 398 754, US-PS 2 012 472), in which the two swivel arms lie within the side walls of the lower part and their swivel bearings in the projection onto the contact surface next to the edge of the parallel to the inking roller Stamp insert are arranged. It serves the roller, however, only for applying the ink to the printing plate or the like and not as a carrier for the ink supply. Rather, when the stamp insert is pressed down, the inking roller must first roll over a porous plate or the like fed by a collector on the side of the stamp insert before it reaches the printing plate or the like. When the stamp is used after a long pause, there is hardly any inking of the printing plate or the like during the first printing process, because the thin ink coating has dried on the roller and the roller only when the stamp insert drops over the porous plate or the like Ink pickup rolls. Other disadvantages are the large height and the other relatively large dimensions, which result from the cumbersome and inadequate coloring process. The inking roller is not interchangeable and the two swivel arms can perform relative movements in an unfavorable manner, since they are only connected to one another by the roller and are each loaded by a spring.

Der Erfindung liegt demnach die Aufgabe zugrunde, diese Mängel zu beseitigen und einen Selbstfärbestempel der eingangs geschilderten Art zu schaffen, bei dem hinsichtlich der Schwenkhebelbewegung volle Funktionssicherheit gewährleistet ist, eine vereinfachte Konstruktion erreicht wird und ein Auswechseln der Farbwalze leicht und ohne Verschmutzungsgefahr für die Bedienungsperson durchführbar ist.The invention is therefore based on the object to remedy these shortcomings and to provide a self-inking stamp of the type described, in which full functional reliability is guaranteed with regard to the pivoting lever movement, a simplified construction is achieved and the ink roller can be replaced easily and without risk of contamination for the operator is.

Die Erfindung löst die gestellte Aufgabe zunächst dadurch, daß die beiden in an sich bekannter Weise innerhalb der Seitenwände des Unterteiles liegenden Schwenkarme durch einen ihre Schwenkwelle bildenden Querteil zu einem starren Bügel verbunden sind, dessen Schwenklager, wie an sich ebenfalls bekannt, in der Projektion auf die Aufsetzfläche neben dem zur Farbwalze parallelen Rand des Stempeleinsatzes angeordnet ist.The invention solves this problem first in that the two pivot arms lying in a conventional manner within the side walls of the lower part are connected by a transverse part forming their pivot shaft to a rigid bracket, the pivot bearing, as is also known per se, in the projection the contact area is arranged next to the edge of the stamp insert parallel to the inking roller.

Durch die Verbindung der beiden Schwenkhebel zu einem starren Bügel ist die gleichzeitige und gleichmäßige Schwenkbewegung beider Schwenkarme gewährleistet, so daß es zu keinen Verkantungen oder Verklemmungen kommen kann, zumal die Farbwalze ausschließlich an den Schwenkarmen gelagert ist und keiner zusätzlichen Schlitzführung od. dgl. im Unterteil bedarf, was auch eine entsprechende Konstruktionsvereinfachung mit sich bringt. Da das Schwenklager des Bügels in der Projektion auf die Aufsetzfläche neben dem zur Farbwalze parallelen Rand des Stempeleinsatzes angeordnet ist, wird während der ganzen Schwenkbewegung des Bügels bzw. der Schwenkarme eine Totpunktlage vermieden, so daß keine Funktionsstörungen auftreten können. Die Schwenkarme bzw. Bügel sind bzw. ist innerhalb des gehäuseförmigen Unterteiles angeordnet, so daß bei der Benützung des Stempels diese sich sonst störend bewegenden Teile abgedeckt und unsichtbar sind.By connecting the two swivel levers to a rigid bracket, the simultaneous and uniform swiveling movement of both swivel arms is ensured, so that there can be no canting or jamming, especially since the inking roller is only supported on the swivel arms and no additional slot guide or the like in the lower part needs, which also entails a corresponding design simplification. Since the pivot bearing of the bracket is arranged in the projection onto the contact surface next to the edge of the stamp insert parallel to the ink roller, a dead center position is avoided during the entire pivoting movement of the bracket or the pivot arms, so that no malfunctions can occur. The swivel arms or brackets are or are arranged within the housing-shaped lower part, so that when the stamp is used, these otherwise disruptive moving parts are covered and invisible.

Um eine einfache Montage zu ermöglichen, ist das Schwenklager des Bügels von wenigstens einem etwa halbschalenförmigen Ansatz der Gehäusewand des Unterteiles gebildet; der die Schwenkwelle bildende Querteil des Bügels braucht also nur in diese Halbschale eingesetzt zu werden. Da der gehäuseförmige Unterteil in der Regel zweiteilig ausgeführt sein wird, ist es dann zweckmäßig, am jeweils anderen Gehäuseteil Nasen od. dgl. vorzusehen, um ein Austreten der eingelegten Schwenkwelle aus dem halbschalenförmigen Ansatz zu verhindern.In order to enable simple assembly, the swivel bearing of the bracket is formed by at least one approximately half-shell-shaped extension of the housing wall of the lower part; the cross part of the bracket forming the swivel shaft therefore only needs to be inserted into this half-shell. Since the housing-shaped lower part will usually be made in two parts, it is then expedient to use the other Provide housing part noses or the like. To prevent the inserted swivel shaft from escaping from the half-shell-shaped attachment.

Der von den Schwenkarmen und dem Querteil gebildete starre Bügel setzt naturgemäß besondere Vorkehrungen zum Einbringen der Farbwalze voraus. Demnach weist einer der beiden Schwenkhebel an seinem freien Ende eine Bohrung zur Aufnahme eines Lagerzapfens der Farbwalze auf, der einen verbreiterten und durch Schlitzung elastisch zusammendrückbaren Kopf besitzt, wogegen der andere Schwenkhebel mit einem dem Farbwalzengrößtdurchmesser entsprechenden Lagerloch versehen ist. Dabei weist der gehäuseförmige Unterteil in seinen Seitenwänden im Bereich der Schwenkbewegungsbahn der Farbwalze Einsetz- bzw. Ausstoßlöcher auf. Durch das Einsetzloch kann also eine Farbwalze mit ihrem Lagerzapfen voran durch das Lagerloch hindurch eingeführt werden, wobei dann der Lagerzapfen an der anderen Seite unter elastischem Zusammendrückken seines Kopfes in die Bohrung des gegenüberliegenden Schwenkhebels eindringt. Der sich wieder weitende Kopf bringt die erforderliche Festlegung der Farbwalze in axialer Richtung mit sich. Umgekehrt braucht zum Enfernen der Farbwalze nur auf den Kopf des Lagerzapfens durch das Ausstoßloch in der Seitenwand des Unterteiles gedrückt zu werden, um die Farbwalze in entgegengesetzter Richtung, also zum Lagerloch hin und durch dieses hinaus verschieben bzw. auswerfen zu können.The rigid bracket formed by the swivel arms and the cross section naturally requires special precautions for introducing the inking roller. Accordingly, one of the two pivot levers at its free end has a bore for receiving a journal of the inking roller, which has a widened head which can be elastically compressed by slitting, whereas the other pivoting lever is provided with a bearing hole corresponding to the ink roller size diameter. In this case, the housing-shaped lower part has insertion or ejection holes in its side walls in the region of the pivoting movement path of the inking roller. Through the insertion hole, an inking roller can thus be inserted with its bearing pin ahead through the bearing hole, the bearing pin then penetrating into the bore of the opposite pivot lever on the other side, with its head being elastically compressed. The head widening again entails the necessary fixing of the inking roller in the axial direction. Conversely, to remove the inking roller, it is only necessary to press on the head of the journal through the ejection hole in the side wall of the lower part in order to be able to move or eject the inking roller in the opposite direction, that is to the bearing hole.

Man könnte im Lagerloch mit der dem Farbwalzengrößtdurchmesser entsprechenden Weite die Farbwalze unmittelbar lagern. Dies hätte aber wegen des vergleichsweise großen Durchmessers auch hohe Reibungskräfte zwischen der Lagerlochwandung und dem darin gelagerten Walzenteil zur folge. Um diese Reibungskräfte zu verringern, die Farbwalze also leicht drehbar zu lagern, ist in weiterer Ausbildung der Erfindung die Farbwalze mit einer auf einem Zapfen mit geschlitztem Kopf drehbaren Scheibe im Lagerloch des betreffenden Schwenkhebels gelagert.You could store the ink roller directly in the bearing hole with the width corresponding to the ink roller size diameter. However, because of the comparatively large diameter, this would also result in high frictional forces between the bearing hole wall and the roller part mounted therein. In order to reduce these frictional forces, that is to say to mount the inking roller in an easily rotatable manner, in a further development of the invention the inking roller is provided with a slot on a pin Head rotatable disc in the bearing hole of the pivot lever concerned.

Um die Farbwalze mit ihrem eingefärbten farbträger nicht direkt angreifen und sich dadurch schmutzig machen zu müssen, besitzt schließlich jede neue Farbwalze an Ihrem Ende mit der drehbaren Scheibe einen mit einer Sollbruchstelle versehenen Griffansatz. Die Farbwalze wird also an diesem Griffansatz erfaßt und in den Stempel bzw. in den Bügel eingeführt, wonach dann der Griffansatz abgebrochen wird. Mehrere Farbwalzen mit Griffansatz können als Vorrat gemeinsam verpackt werden. Ein Schmutzigmachen beim Ausstoßen der verbrauchten Farbwalzen ist auch nicht zu befürchten, da diese ja eben nur mit einem geeigneten Werkzeug aus dem Stempel hinausgedrückt zu werden brauchen.So that the ink roller with its colored ink carrier does not directly attack and thereby have to get dirty, every new ink roller at the end with the rotatable disc has a handle attachment with a predetermined breaking point. The inking roller is thus gripped on this handle attachment and inserted into the stamp or into the bracket, after which the handle attachment is then broken off. Several inking rollers with a handle attachment can be packed together as a supply. There is also no fear of getting dirty when ejecting the used ink rollers, since they only need to be pushed out of the stamp with a suitable tool.

In der Zeichnung ist der Erfindungsgegenstand in einem Ausführungsbeispiel vereinfacht dargestellt, und zwar zeigen

  • Fig. 1 einen Selbstfärbestempel im Querschnitt,
  • Fig. 2 im Längsschnltt nach der Linie II-II der Fig. 1 und
  • Fig. 3 das untere Ende des Bügels mit der Farbwalze im größeren Maßstab im Teilschnitt.
In the drawing, the subject matter of the invention is shown in simplified form in one exemplary embodiment, namely showing
  • 1 is a self-inking stamp in cross section,
  • Fig. 2 in longitudinal section along the line II-II of Fig. 1 and
  • Fig. 3 shows the lower end of the bracket with the inking roller on a larger scale in partial section.

Der Selbstfärbestempel weist einen auf die zu stempelnde Fläche aufsetzbaren gehäuseförmigen Unterteil 1 auf und einen in diesem geradlinig geführten, gegen die Kraft einer Feder 2 zur Aufsetzfläche hin verschiebbaren Stempeleinsatz 3 auf, der eine Druckplatte 4 od. dgl. trägt. Im Unterteil 1 sind zwei Schwenkarme 5 angeordnet, die durch einen ihre Schwenkwelle bildenden Querteil 6 zu einem starren Bügel verbunden sind. Die Schwenklager dieses Bügels 5, 6 werden von etwa halbschalenförmigen Ansätzen 7 der Gehäusewand des Unterteiles 1 gebildet. In der Vertikalprojektion auf die Aufsetzfläche sind die Schwenklager bzw. die Halbschalen 7 neben dem Stempeleinsatz 3 angeordnet, wie dies Fig. 1 deutlich erkennen läßt.The self-inking stamp has a housing-shaped lower part 1 which can be placed on the surface to be stamped, and a stamp insert 3 which is guided in a straight line and can be displaced toward the contact surface against the force of a spring 2 and which carries a pressure plate 4 or the like. In the lower part 1, two swivel arms 5 are arranged, which are connected to a rigid bracket by a transverse part 6 forming their swivel shaft. The pivot bearings of this bracket 5, 6 are formed by approximately half-shell-shaped lugs 7 of the housing wall of the lower part 1. In the vertical projection the contact surface, the pivot bearings or the half-shells 7 are arranged next to the stamp insert 3, as can be clearly seen in FIG. 1.

Die Schwenkarme 5 halten eine Farbwalze 8, die in der in den Fig. 1 und 2 mit vollen Linien ausgezogenen Ruhestellung des Stempeleinsatzes 3 an dem dem Schwenklager 7 gegenüberliegenden Rand des Stempeleinsatzes 3 anliegt. Die Schwenkarme 5 bzw. der Bügel 6 stehen bzw. steht unter der Wirkung einer Rückholfeder 9, die das Bestreben hat, den Bügel aufwärts, d. h. die Farbwalze 8 gegen die Druckplatte 4 zu drücken. Bei der Bewegung des Stempeleinsatzes 3 zur Aufsetzfläche hin rollt die Farbwalze 8 über die Druckplatte 4 und weicht schließlich dem Stempeleinsatz 3 aus (strichlierte Stellung nach den Fig. 1 und 2).The swivel arms 5 hold an inking roller 8 which, in the rest position of the stamp insert 3 drawn in solid lines in FIGS. 1 and 2, bears against the edge of the stamp insert 3 opposite the pivot bearing 7. The swivel arms 5 and the bracket 6 are or is under the action of a return spring 9, which tends to move the bracket upwards, i. H. to press the ink roller 8 against the pressure plate 4. When the stamp insert 3 moves towards the mounting surface, the inking roller 8 rolls over the pressure plate 4 and finally evades the stamp insert 3 (dashed position according to FIGS. 1 and 2).

Zur Montage bzw. zum Ausstoßen der Farbwalze 8 ist der Unterteil 1 in seinen Seitenwänden im Bereich der Schwenkbewegungsbahn der Farbwalze 8 mit Einsetz- bzw. Ausstoßlöchern 10 versehen. Einer der beiden Schwenkhebel 5 (der rechte in den Fig. 2 und 3) weist an seinem freien Ende eine Bohrung 11 zur Aufnahme eines Lagerzapfens 12 der Farbwalze 8 auf, der einen verbreiterten und durch Schlitzung elastisch zusammendrückbaren Kopf 13 besitzt. Der andere (linke) Schwenkhebel 5 ist mit einem dem Farbwalzengrößtdurchmesser entsprechenden Lagerloch 14 versehen, wobei die Farbwalze 8 mit einer ebenfalls auf einem Zapfen 15 mit geschlitztem Kopf drehbaren Scheibe 16 im Lagerloch 14 des betreffenden Schwenkhebels 5 gelagert ist. Wie die Fig. 3 zeigt, ist die Farbwalze 8 bzw. die drehbare Scheibe 16 mit einem mit ihr über eine Sollbruchstelle 17 verbundenen Griffansatz 18 ausgestattet.For mounting or ejecting the inking roller 8, the lower part 1 is provided in its side walls in the region of the pivoting movement path of the inking roller 8 with insertion or ejection holes 10. One of the two pivot levers 5 (the right one in FIGS. 2 and 3) has at its free end a bore 11 for receiving a bearing journal 12 of the inking roller 8, which has a widened head 13 that can be elastically compressed by slitting. The other (left) pivot lever 5 is provided with a bearing hole 14 corresponding to the ink roller size diameter, the ink roller 8 being mounted in the bearing hole 14 of the respective pivot lever 5 with a disk 16 which can also be rotated on a pin 15 with a slotted head. As shown in FIG. 3, the inking roller 8 or the rotatable disk 16 is equipped with a handle attachment 18 connected to it via a predetermined breaking point 17.

Claims (5)

Selbstfärbestempel mit einem auf die zu stempelnde Fläche aufsetzbaren, vorzugsweise gehäuseförmigen Unterteil (1), einem in diesem geradlinig geführten, gegen Federkraft zur Aufsetzfläche hin verschiebbaren, eine Druckplatte (4) od. dgl. tragenden Stempeleinsatz und einer von zwei im Unterteil (1) gelagerten Schwenkarmen (5) auswechselbar gehaltenen, selbst den Farbvorrat aufnehmenden Farbwalze (8), die in der Ruhestellung des Stempeleinsatzes (3) unter der Wirkung einer den Schwenkarmen (5) zugeordneten Rückholfeder (9) an dem dem Schwenklager (7) der Schwenkarme (5) gegenüberliegenden Rand des Stempeleinsatzes (3) anliegt, bei dessen Bewegung zur Aufsetzfläche hin durch das dabei erzwungene Schwenken der Schwenkarme (5) unter Farbabgabe über die Druckplatte (4) od. dgl. rollt und dem Stempeleinsatz (3) schließlich seitwärts ausweicht, dadurch gekennzeichnet, daß die beiden in an sich bekannter Weise innerhalb der Seitenwände des Unterteiles (1) liegenden Schwenkarme (5) durch einen ihre Schwenkwelle bildenden Querteil (6) zu einem starren Bügel (5, 6) verbunden sind, dessen Schwenklager (7), wie an sich ebenfalls bekannt, in der Projektion auf die Aufsetzfläche neben dem zur Farbwalze (8) parallelen Rand des Stempeleinsatzes (3) angeordnet ist.Self-inking stamp with a preferably housing-shaped lower part (1) that can be placed on the surface to be stamped, a linearly guided lower part that can be displaced towards the contact surface against spring force, a pressure plate (4) or the like carrying a stamp insert and one of two in the lower part (1) mounted swivel arms (5) interchangeably held, even the ink supply receiving ink roller (8), which in the rest position of the stamp insert (3) under the action of a return spring (9) assigned to the swivel arms (5) on the swivel bearing (7) of the swivel arms ( 5) lies against the opposite edge of the stamp insert (3), when it moves towards the contact surface due to the forced swiveling of the swivel arms (5) with ink delivery over the pressure plate (4) or the like and finally evades the stamp insert (3) sideways, characterized in that the two swivel arms (5th) lying within the side walls of the lower part (1) in a manner known per se ) are connected by a transverse part (6) forming their pivot shaft to a rigid bracket (5, 6), the pivot bearing (7), as is also known per se, in the projection onto the mounting surface next to the edge of the roller parallel to the ink roller (8) Stamp insert (3) is arranged. Selbstfärbestempel nach Anspruch 1, dadurch gekennzeichnet, daß das Schwenklager des Bügels (5, 6) von wenigstens einem etwa halbschalenförmigen Ansatz (7) der Gehäusewand des Unterteiles (1) gebildet ist.Self-inking stamp according to claim 1, characterized in that the pivot bearing of the bracket (5, 6) is formed by at least one approximately half-shell-shaped extension (7) of the housing wall of the lower part (1). Selbstfärbestempel nach Anspruch 1, dadurch gekennzeichnet, daß einer der beiden Schwenkhebel (5) an seinem freien Ende eine Bohrung (11) zur Aufnahme eines Lagerzapfens (12) der Farbwalze (8) aufweist, der einen verbreiterten und durch Schlitzung elastisch zusammendrückbaren Kopf (13) besitzt, wogegen der andere Schwenkhebel (5) mit einem dem Farbwalzengrößtdurchmesser entsprechenden Lagerloch (14) versehen ist, und daß der gehäuseförmige Unterteil (1) in seinen Seltenwänden im Bereich der Schwenkbewegungsbahn der Farbwalze (8) Einsetz- bzw. Ausstoßlöcher (10) aufweist.Self-inking stamp according to claim 1, characterized in that one of the two pivot levers (5) on its Free end has a bore (11) for receiving a bearing pin (12) of the inking roller (8), which has a widened head (13) that can be elastically compressed by slitting, whereas the other pivot lever (5) has a bearing hole (14) that corresponds to the inking roller size ) is provided, and that the housing-shaped lower part (1) has insertion or ejection holes (10) in its rare walls in the region of the pivoting movement path of the inking roller (8). Selbstfärbestempel nach Anspruch 3, dadurch gekennzeichnet, daß die Farbwalze (8) mit einer auf einem Zapfen (15) mit geschlitztem Kopf drehbaren Scheibe (16) im Lagerloch (14) des betreffenden Schwenkhebels (5) gelagert ist.Self-inking stamp according to claim 3, characterized in that the inking roller (8) is mounted in the bearing hole (14) of the respective pivot lever (5) with a disk (16) which can be rotated on a pin (15) with a slotted head. Selbstfärbestempel nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß die Farbwalze (8) an ihrem Ende mit der drehbaren Scheibe (16) einen mit einer Sollbruchstelle (17) versehenen Griffansatz (18) besitzt.Self-inking stamp according to claims 3 and 4, characterized in that the inking roller (8) has at the end with the rotatable disc (16) a handle attachment (18) provided with a predetermined breaking point (17).
EP19910890071 1990-05-07 1991-04-09 Self-inking hand stamp Expired - Lifetime EP0456631B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT102290A ATA102290A (en) 1990-05-07 1990-05-07 SELF-FAIRING STAMP
AT1022/90 1990-05-07

Publications (2)

Publication Number Publication Date
EP0456631A1 true EP0456631A1 (en) 1991-11-13
EP0456631B1 EP0456631B1 (en) 1994-03-09

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ID=3505038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910890071 Expired - Lifetime EP0456631B1 (en) 1990-05-07 1991-04-09 Self-inking hand stamp

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EP (1) EP0456631B1 (en)
AT (1) ATA102290A (en)
DE (1) DE59101129D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771799A (en) * 1995-06-08 1998-06-30 Makino; Kazunosuke Ink roller device and numbering machine equipped with the ink roller device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB322264A (en) * 1928-09-18 1929-12-05 Charles Sumner Du Belle Inking means for hand stamp machines and other printing machines
GB398754A (en) * 1933-03-29 1933-09-21 Carl Otto Robert Ludewigs Improvements in and relating to stamping devices
GB1029889A (en) * 1962-03-12 1966-05-18 Edmond Prosper Nestor Gerard Improvements in or relating to printing stamps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB322264A (en) * 1928-09-18 1929-12-05 Charles Sumner Du Belle Inking means for hand stamp machines and other printing machines
GB398754A (en) * 1933-03-29 1933-09-21 Carl Otto Robert Ludewigs Improvements in and relating to stamping devices
GB1029889A (en) * 1962-03-12 1966-05-18 Edmond Prosper Nestor Gerard Improvements in or relating to printing stamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771799A (en) * 1995-06-08 1998-06-30 Makino; Kazunosuke Ink roller device and numbering machine equipped with the ink roller device

Also Published As

Publication number Publication date
ATA102290A (en) 1991-06-15
DE59101129D1 (en) 1994-04-14
EP0456631B1 (en) 1994-03-09

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