EP0074104B1 - Perforating pliers - Google Patents

Perforating pliers Download PDF

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Publication number
EP0074104B1
EP0074104B1 EP82108176A EP82108176A EP0074104B1 EP 0074104 B1 EP0074104 B1 EP 0074104B1 EP 82108176 A EP82108176 A EP 82108176A EP 82108176 A EP82108176 A EP 82108176A EP 0074104 B1 EP0074104 B1 EP 0074104B1
Authority
EP
European Patent Office
Prior art keywords
cover plate
perforator
hole punch
punch
spring
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
Application number
EP82108176A
Other languages
German (de)
French (fr)
Other versions
EP0074104A2 (en
EP0074104A3 (en
Inventor
Eitel Dudde
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.)
Louis Leitz Firma
Original Assignee
Louis Leitz Firma
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 Louis Leitz Firma filed Critical Louis Leitz Firma
Priority to AT82108176T priority Critical patent/ATE26944T1/en
Publication of EP0074104A2 publication Critical patent/EP0074104A2/en
Publication of EP0074104A3 publication Critical patent/EP0074104A3/en
Application granted granted Critical
Publication of EP0074104B1 publication Critical patent/EP0074104B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/32—Hand-held perforating or punching apparatus, e.g. awls
    • B26F1/36—Punching or perforating pliers

Definitions

  • the invention relates to a single letter punch with a punch under the action of a return spring, guided in the upper part of the punch.
  • the aim of the invention is to provide a simple letter puncher of simple and space-saving design, which causes only low manufacturing costs and can be conveniently accommodated in a briefcase or the like.
  • the punch according to the invention has the features specified in claim 1.
  • the production of the letter punch causes especially very low costs because the letter punch consists practically only of two parts, the housing preferably made of plastic and the metal punch that can be used in it, so that no special devices are required for mounting the letter punch.
  • Adequate springing of the plate covering the housing at the top can be achieved by a tapering of the material or also in that only a central part of the cover plate delimited by two cuts engages the punch and is designed as a resilient tongue.
  • the punch stroke is determined by the distance of the resilient cover plate or of the resilient cover plate from the part of the part of the housing forming the guide of the punch, and thus limited, so that excessive stress on the cover plate is avoided.
  • the preferably made of plastic body of the punch hole has a chip chamber 1 enclosed by four side walls, the upper end of which forms the matrix web 2.
  • the insertion slot is delimited on its upper side by a cantilever arm 4 which forms the guide for the punch 3.
  • the punch 3 has a widened head 31 serving as a pushbutton and underneath this an annular groove 32, in which the front plate-shaped cover plate 5 engages.
  • the chip chamber 1 has a recess in a side wall or in the base plate, which is closed by means of a removable plate.

Abstract

1. A single-action paper perforator having in the upper portion thereof a hole punch which is acted upon by a return spring, characterised in that the upper portion, and the lower portion of the perforator which constitutes the die (2) and the scraps compartment (1), is designed to be integral with a spring-loaded cover plate (5), which grips the enlarged head (31) of the hole punch (3) from below, the head being designed as a pushbutton.

Description

Die Erfindung betrifft einen Einfach-Brieflocher mit einem unter der Einwirkung einer Rückholfeder stehenden, im Oberteil des Brieflochers geführten Lochstempel. Es wird mit der Erfindung angestrebt, einen Einfach-Brieflocher einfacher und raumsparender Bauart anzugeben, der nur geringe Herstellungskosten verursacht und bequem in einer Aktentasche oder dergleichen untergebracht werden kann.The invention relates to a single letter punch with a punch under the action of a return spring, guided in the upper part of the punch. The aim of the invention is to provide a simple letter puncher of simple and space-saving design, which causes only low manufacturing costs and can be conveniently accommodated in a briefcase or the like.

Der erfindungsgemäße Locher weist die im Anspruch 1 angebenen Merkmale auf.The punch according to the invention has the features specified in claim 1.

Vonteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 bis 4 angegeben.Advantageous embodiments of the invention are specified in claims 2 to 4.

Die Herstellung des Brieflochers verursacht insbesondere deshalb nur sehr geringe Kosten, weil der Brieflocher praktisch nur aus zwei Teilen, dem vorzugsweise aus Kunststoff gefertigten Gehäuse und dem in dieses einsetzbaren metallischen Lochstempel besteht, so daß es zur Montage des Brieflochers keiner besonderen Vorrichtungen bedarf.The production of the letter punch causes especially very low costs because the letter punch consists practically only of two parts, the housing preferably made of plastic and the metal punch that can be used in it, so that no special devices are required for mounting the letter punch.

Eine ausreichende Federung der das Gehäuse oben abdeckenden Platte kann durch eine Verjüngung des Materials oder auch dadurch erzielt werden, daß nur ein durch zwei Einschnitte begrenztes Mittelteil der Deckplatte an dem Lochstempel angreift und als federnde Zunge ausgebildet ist. Der Lochstempelhub ist durch den Abstand der federnden Deckplatte bzw. des federnden Deckplatte mittelteils von dem die Führung des Lochstempels bildenden Teil des Gehäuses bestimmt und damit begrenzt, so daß eine übermäßige Beanspruchung der Deckplatte vermieden ist.Adequate springing of the plate covering the housing at the top can be achieved by a tapering of the material or also in that only a central part of the cover plate delimited by two cuts engages the punch and is designed as a resilient tongue. The punch stroke is determined by the distance of the resilient cover plate or of the resilient cover plate from the part of the part of the housing forming the guide of the punch, and thus limited, so that excessive stress on the cover plate is avoided.

In der Zeichnung ist ein Ausführungsbeispiel des erfindungsgemäßen Lochers in einem senkrechten Schnitt dargestellt.In the drawing, an embodiment of the punch according to the invention is shown in a vertical section.

Der vorzugsweise aus Kunststoff bestehende körper des Brieflochers weist eine von vier Seitenwänden umschlossene Schnitzelkammer 1 auf, deren oberen Abschluß der Matrizensteg 2 bildet. Der Einschubschlitz wird an seiner oberen Seite durch einen auskragenden, die Führung des Lochstempels 3 bildenden Arm 4 begrenzt. Der Lochstempel 3 weist einen verbreiterten, als Drucktaste dienenden Kopf 31 und unter diesem eine Ringnut 32 auf, in die die an ihrem vorderen Ende gabelförmig ausgebildete Deckplatte 5 eingreift. Die Schnitzelkammer 1 weist in einer Seitenwand oder in der Bodenplatte eine Aussparung auf, die mittels einer abnehmbaren Platte verschlossen ist.The preferably made of plastic body of the punch hole has a chip chamber 1 enclosed by four side walls, the upper end of which forms the matrix web 2. The insertion slot is delimited on its upper side by a cantilever arm 4 which forms the guide for the punch 3. The punch 3 has a widened head 31 serving as a pushbutton and underneath this an annular groove 32, in which the front plate-shaped cover plate 5 engages. The chip chamber 1 has a recess in a side wall or in the base plate, which is closed by means of a removable plate.

Claims (4)

1. A single-action paper perforator having in the upper portion thereof a hole punch which is acted upon by a return spring, characterised in that the upper portion, and the lower portion of the perforator which constitutes the die (2) and the scraps compartment (1), is designed to be integral with a spring-loaded cover plate (5), which grips the enlarged head (31) of the hole punch (3) from below, the head being designed as a pushbutton.
2. The single-action paper perforator of claim 1, characterised in that a central portion of the cover plate (5) delimited by two parallel incisions forms a spring-loaded tongue which grips the enlarged head (31) of the hole punch (3) from below.
3. The single-action paper perforator of claims 1 and 2, characterised in that the shank of the hole punch (3) exhibits an annular groove (32), into-which respectively engages the bifurcated free end of the spring-loaded cover plate (5) and of the central portion of the cover plate delimited by two incisions.
4. The single-action paper perforator of any of claims 1 to 3, characterised in that in one of the walls delimiting the scraps compartment, or in the base plate delimiting the latter, there is provided a recess which can be sealed by a latching plate.
EP82108176A 1981-09-09 1982-09-04 Perforating pliers Expired EP0074104B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82108176T ATE26944T1 (en) 1981-09-09 1982-09-04 MAILHOLE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8126183U 1981-09-09
DE19818126183U DE8126183U1 (en) 1981-09-09 1981-09-09 "PUNCH HOLE"

Publications (3)

Publication Number Publication Date
EP0074104A2 EP0074104A2 (en) 1983-03-16
EP0074104A3 EP0074104A3 (en) 1985-07-10
EP0074104B1 true EP0074104B1 (en) 1987-05-06

Family

ID=6731035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108176A Expired EP0074104B1 (en) 1981-09-09 1982-09-04 Perforating pliers

Country Status (4)

Country Link
EP (1) EP0074104B1 (en)
AT (1) ATE26944T1 (en)
DE (2) DE8126183U1 (en)
ES (1) ES267146Y (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230312A1 (en) * 1982-08-14 1984-02-16 Elba-Ordner-Fabrik Kraut & Meienborn GmbH & Co., 5600 Wuppertal Perforator for paper and cardboard goods, essentially comprising two extruded profiles
GB8530212D0 (en) * 1985-12-07 1986-01-15 Perforex Ltd Punch
DE8801784U1 (en) * 1988-02-11 1988-04-07 Hetzel, Helmut, 7307 Aichwald, De
DE19815866C1 (en) * 1998-04-08 2000-01-27 Andrzcej Walczak Paper punch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726721A (en) * 1952-10-21 1955-12-13 Wilson Jones Co Punch head slidably mounted on a frame
IL53464A0 (en) * 1977-11-25 1978-01-31 Almog E A paper perforator
FR2419089A1 (en) * 1978-03-08 1979-10-05 Dugue Gerard Device for checking results of lottery - uses number marked on transparent sheet and clipper to perforate winning numbers
FI59211C (en) * 1978-03-10 1981-07-10 Lauri Huotari PERFORERINGSANORDNING

Also Published As

Publication number Publication date
ES267146U (en) 1983-02-16
ES267146Y (en) 1984-06-01
EP0074104A2 (en) 1983-03-16
DE3276227D1 (en) 1987-06-11
DE8126183U1 (en) 1982-03-11
ATE26944T1 (en) 1987-05-15
EP0074104A3 (en) 1985-07-10

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