EP0280858A2 - Perforateur pour lettre - Google Patents

Perforateur pour lettre Download PDF

Info

Publication number
EP0280858A2
EP0280858A2 EP88100746A EP88100746A EP0280858A2 EP 0280858 A2 EP0280858 A2 EP 0280858A2 EP 88100746 A EP88100746 A EP 88100746A EP 88100746 A EP88100746 A EP 88100746A EP 0280858 A2 EP0280858 A2 EP 0280858A2
Authority
EP
European Patent Office
Prior art keywords
pressure
pressure lever
lever
pressure body
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.)
Granted
Application number
EP88100746A
Other languages
German (de)
English (en)
Other versions
EP0280858B1 (fr
EP0280858A3 (en
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 pedestals of the lower part, guided on two guides in the lower part against the restoring force of a spring by means of a pressure element acting pressure lever.
  • the invention has for its object to provide a punch hole punch of the type specified, which allows simple reduction, preferably a halving of the pressure force during the punching process with simple means.
  • 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. Proceeding from this proposed according to the invention that at least one of the pressure body on the pressure lever against the restoring force of a spring can be moved from an effective to an ineffective position, can be locked in the inactive position when the pressure lever is depressed and can be automatically pushed back into its effective position when the pressure lever is raised.
  • 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 attachment 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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Paper (AREA)
  • Developing Agents For Electrophotography (AREA)
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 true EP0280858A2 (fr) 1988-09-07
EP0280858A3 EP0280858A3 (en) 1990-12-05
EP0280858B1 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
DE3869643D1 (de) 1992-05-07
EP0280858B1 (fr) 1992-04-01
JPS63229299A (ja) 1988-09-26
ATE74307T1 (de) 1992-04-15
DE3706695A1 (de) 1988-09-15
EP0280858A3 (en) 1990-12-05
ES2030770T3 (es) 1992-11-16

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