EP0280858B1 - Perforateur pour lettre - Google Patents

Perforateur pour lettre Download PDF

Info

Publication number
EP0280858B1
EP0280858B1 EP88100746A EP88100746A EP0280858B1 EP 0280858 B1 EP0280858 B1 EP 0280858B1 EP 88100746 A EP88100746 A EP 88100746A EP 88100746 A EP88100746 A EP 88100746A EP 0280858 B1 EP0280858 B1 EP 0280858B1
Authority
EP
European Patent Office
Prior art keywords
pressure
pressure lever
lever
pressure element
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 - Lifetime
Application number
EP88100746A
Other languages
German (de)
English (en)
Other versions
EP0280858A3 (en
EP0280858A2 (fr
Inventor
Gerhard Sixt
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 AT88100746T priority Critical patent/ATE74307T1/de
Publication of EP0280858A2 publication Critical patent/EP0280858A2/fr
Publication of EP0280858A3 publication Critical patent/EP0280858A3/de
Application granted granted Critical
Publication of EP0280858B1 publication Critical patent/EP0280858B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/04—Perforating by punching, e.g. with relatively-reciprocating punch and bed with selectively-operable punches
    • 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 letter punch with a lower part and a pivotally mounted on bearing blocks of the lower part, guided on two of the lower part, displaceably guided against the restoring force of a spring by means of a pressure element, at least one of the pressure elements in the raised position of the pressure lever optionally in one is displaceable with an effective position of the punch or an inactive position which is out of engagement with the punch and remains in the selected position when the pressure lever is depressed.
  • a letter punch of the type mentioned is known (US-A-1 655 315), in which a plurality of holes arranged at different distances from one another, held under the action of a spring in their upper end position, with the aid of pressure bodies displaceable on the pressure lever, optionally with the Push lever can be engaged.
  • a letter punch of the type mentioned is known (US-A-1 655 315), in which a plurality of holes arranged at different distances from one another, held under the action of a spring in their upper end position, with the aid of pressure bodies displaceable on the pressure lever, optionally with the Push lever can be engaged.
  • the invention has for its object to develop a letter punch of the type mentioned, which allows simple reduction, preferably a halving of the compressive force during the punching process and wherein the pressure body automatically returns to its effective position.
  • the invention is based on the idea that in the case of double or multiple perforations, a lower compressive force is required if the holes are introduced one after the other and not simultaneously.
  • the pressure body against the restoring force of a further spring is displaceable from its effective position into its inactive position, is locked in the inactive position when the pressure lever is depressed and after lifting the pressure lever under the action the other spring automatically returns to its effective position.
  • the displaceable pressure body is arranged in a recess of the pressure lever, which is preferably designed as a pressure plate, in such a way that it protrudes from the recess in its effective position and is pushed into the inactive position.
  • the pressure body according to the invention advantageously has a latching surface which, in the inactive position of the pressure body when the pressure plate is depressed, under the action of the spring against one arranged on the lower part Counter detent is present and can be released automatically when the pressure lever is lifted.
  • the displaceable pressure body has an extension which has a limit stop which bears against the pressure plate in the effective position of the pressure body and whose end face lying opposite the limit stop bears against the end face of the punch.
  • the recess receiving the displaceable pressure body is advantageously oriented obliquely to the top of the pressure plate.
  • the pressure body expediently has a helical spring which is supported against the pressure plate in a recess at the end opposite the end protruding from the pressure plate.
  • the letter punch essentially consists of a lower part 1 and a pressure lever 2 articulated on bearing blocks 10 of the lower part 1.
  • the punches 3 enclosed by a helical spring 4 are guided in the bearing blocks.
  • a pressure body formed on the underside of the pressure plate 2 acts in a known manner.
  • the pressure body 5 acts, which is guided in a recess that runs obliquely to the surface of the pressure lever 2, is cylindrical or is delimited by tabs 21, 21 ⁇ and against the restoring force of a coil spring 8 from the one in FIG. 1 drawn position, that is, when the punch hole is not actuated or before the punch hole is pressed, can be pressed into the recess.
  • the pressure body 5 has a shoulder 6, which extends obliquely to its longitudinal extent, with a shoulder 7.
  • the shoulder 7 rests against the underside of the pressure lever 2 and thus forms both a limit stop for the longitudinal movement of the pressure body 5 and also an abutment for the shoulder 6 when the end face of the shoulder 6 opposite the shoulder 7 opens when the punch hole is actuated the punch 4 acts (see. Fig. 2).

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Paper (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (7)

  1. Perforateur de papier à lettres comprenant une partie inférieure (1) et un levier de pression (2) qui, monté basculant sur des supports (10) de la partie inférieure (1), agit au moyen de poussoirs respectifs (5), à l'encontre de la force de rappel d'un ressort (4), sur deux poinçons (3) guidés de façon à pouvoir coulisser dans la partie inférieure (1), au moins l'un des poussoirs (5) pouvant, dans la position relevée du levier de pression (2), être amené par coulissement sélectivement, soit dans une position active de mise en prise avec l'un des poinçons (3), soit dans une position inactive et hors de prise avec le poinçon (3), et restant, lors de l'abaissement du levier de pression (2), dans la position choisie, caractérisé en ce que le poussoir (5) peut être amené par coulissement, à l'encontre de la force de rappel d'un autre ressort (8) à partir de sa une position active dans une position inactive et est retenu après cette amenée dans la position inactive, lors de l'abaissement du levier de pression (2), dans cette position pour revenir, après le relèvement du levier de pression (2), sous l'action de l'autre ressort (8) automatiquement à sa position active.
  2. Perforateur de papier selon la revendication 1, caractérisé en ce que le poussoir (5) susceptible de coulisser est monté dans un évidement du levier de pression (2) de telle manière que dans sa position active il fasse saillie hors de l'évidement et que dans sa position inactive il se trouve glissé dans ce dernier.
  3. Perforateur de papier selon la revendication 1 ou 2, caractérisé en ce que le poussoir (5) présente une surface d'arrêt (51) qui dans la position inactive du poussoir (5), le levier de pression (2) étant abaissé, prend appui sous l'action du ressort (8) contre une surface d'arrêt complémentaire (11) prévue sur la partie inférieure (1) et peut, lors du relèvement du levier de pression (2), se dégager automatiquement de celui-ci.
  4. Perforateur de papier selon l'une quelconque des revendications précédentes, caractérisé en ce que le poussoir (5) présente une saillie (6) qui comporte une butée (7) formant limite, prenant appui dans la position active du poussoir (5) contre le levier de pression (2), et dont la surface frontale opposée à la butée formant limite (7) prend appui contre la face frontale du poinçon (3).
  5. Perforateur de papier selon la revendication 2 ou selon la revendication 3 ou 4 se rapportant à la figure 2, caractérisé en ce que l'évidement recevant le poussoir 5 s'étend obliquement par rapport au côté supérieur du levier de pression.
  6. Perforateur de papier selon l'une quelconque des revendications précédentes, caractérisé en ce que le poussoir (5) présente, à son extrémité opposée à l'extrémité faisant saillie au-delà du levier de pression (2), en tant qu'autre ressort un ressort hélicoïdal (8) monté dans un évidement et prenant appui contre le levier de pression (2).
  7. Perforateur de papier selon l'une quelconque des revendications précédentes, caractérisé en ce que le poussoir (5) présente un fût cylindrique.
EP88100746A 1987-03-02 1988-01-20 Perforateur pour lettre Expired - Lifetime EP0280858B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100746T ATE74307T1 (de) 1987-03-02 1988-01-20 Brieflocher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3706695 1987-03-02
DE19873706695 DE3706695A1 (de) 1987-03-02 1987-03-02 Brieflocher

Publications (3)

Publication Number Publication Date
EP0280858A2 EP0280858A2 (fr) 1988-09-07
EP0280858A3 EP0280858A3 (en) 1990-12-05
EP0280858B1 true EP0280858B1 (fr) 1992-04-01

Family

ID=6322115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100746A Expired - Lifetime EP0280858B1 (fr) 1987-03-02 1988-01-20 Perforateur pour lettre

Country Status (5)

Country Link
EP (1) EP0280858B1 (fr)
JP (1) JPS63229299A (fr)
AT (1) ATE74307T1 (fr)
DE (2) DE3706695A1 (fr)
ES (1) ES2030770T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006027009B4 (de) * 2006-06-08 2011-09-15 Esselte Leitz Gmbh & Co. Kg Papierlocher
JP5875490B2 (ja) * 2012-09-07 2016-03-02 典政 佐々木 ２穴パンチ具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE420124C (de) * 1922-09-30 1925-10-16 Henri Waldschmidt Verstellbarer Locher, bei welchem das auf die Lochstempel einwirkende Druckorgan nurmit einem Lochstempel in staendige Beruehrung gesetzt ist
US1655315A (en) * 1927-06-24 1928-01-03 Boorum & Pease Company Punch
US2764240A (en) * 1953-09-23 1956-09-25 Acco Products Inc Perforating devices

Also Published As

Publication number Publication date
DE3706695A1 (de) 1988-09-15
JPS63229299A (ja) 1988-09-26
ES2030770T3 (es) 1992-11-16
DE3869643D1 (de) 1992-05-07
ATE74307T1 (de) 1992-04-15
EP0280858A3 (en) 1990-12-05
EP0280858A2 (fr) 1988-09-07

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