EP0026888A2 - Châssis pour poinçonneuses à papier - Google Patents

Châssis pour poinçonneuses à papier Download PDF

Info

Publication number
EP0026888A2
EP0026888A2 EP80105849A EP80105849A EP0026888A2 EP 0026888 A2 EP0026888 A2 EP 0026888A2 EP 80105849 A EP80105849 A EP 80105849A EP 80105849 A EP80105849 A EP 80105849A EP 0026888 A2 EP0026888 A2 EP 0026888A2
Authority
EP
European Patent Office
Prior art keywords
base plate
bent
forming
edge
field
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
EP80105849A
Other languages
German (de)
English (en)
Other versions
EP0026888A3 (en
EP0026888B1 (fr
Inventor
Theodor Pflugfelder
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 AT80105849T priority Critical patent/ATE5695T1/de
Publication of EP0026888A2 publication Critical patent/EP0026888A2/fr
Publication of EP0026888A3 publication Critical patent/EP0026888A3/de
Application granted granted Critical
Publication of EP0026888B1 publication Critical patent/EP0026888B1/fr
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
    • 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 lower part, which consists of a base plate forming the cutting die and two connected to it, the punching guides and the bearing points for the pressure arms designed as a one-armed lever having side blocks.
  • the invention is therefore based on the object of creating a letter punch which is capable of absorbing the stresses occurring even with a smaller sheet thickness without deformation, and yet can be produced more easily and economically than punchers since then.
  • the bottom hole punch part according to the invention is designed according to the characterizing part of patent claim 1 or advantageously also as it is described in subclaims 2- 7 is marked.
  • the base plate 1 has an edge strip 11 which is bent downwards and a surface which is separated by a step 14 into a rear region 12 and a front region 13, in which the cutting die holes 15 and 15 1 are left free. In the surface area 12 of the base plate, this is riveted to the part 2 forming the side cheeks and the punch guide. Part 2 is erected from the blank shown in FIG. 3. This has a central field 21 corresponding to the width of the base plate 1, two fields 22, 22 'forming the side cheeks and the pressure lever bearings 24, 24' to the side of this central field, two fields 23, 23 'having the punch guide 25, 25' adjacent to these and one adjacent insert-side margin 29. In the area of the middle field 21, two bores 26 are provided for receiving rivets.
  • Two tabs 27, 27 'connected to the side cheek sections 22, 22' are cut out of the middle field, which in the erected state of the part 2 lie in depressions in the edge strip 11 of the base plate 1 and engage behind the lower edge of this edge strip in a hook-like manner. This prevents the bearing from being subjected to tensile stress set 24,24 'of the pressure lever that part 2 bends and the rivet connections, which essentially only serve to fix part 2, are excessively stressed.
  • the anchoring of the side walls according to the invention by means of which the upward tensile forces exerted during the punching on the bearings 24, 24 'are transmitted to the base plate or absorbed by the latter, is particularly advantageous in the case of wall punchers in which the side walls and the stamp guides connected to them are made from one blank each.

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)
  • Paper (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Sheet Holders (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Punching Or Piercing (AREA)
EP80105849A 1979-10-05 1980-09-26 Châssis pour poinçonneuses à papier Expired EP0026888B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80105849T ATE5695T1 (de) 1979-10-05 1980-09-26 Brieflocher-unterteil.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2940384 1979-10-05
DE19792940384 DE2940384A1 (de) 1979-10-05 1979-10-05 Brieflocher-unterteil

Publications (3)

Publication Number Publication Date
EP0026888A2 true EP0026888A2 (fr) 1981-04-15
EP0026888A3 EP0026888A3 (en) 1981-08-05
EP0026888B1 EP0026888B1 (fr) 1983-12-28

Family

ID=6082771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105849A Expired EP0026888B1 (fr) 1979-10-05 1980-09-26 Châssis pour poinçonneuses à papier

Country Status (7)

Country Link
EP (1) EP0026888B1 (fr)
JP (1) JPS5815120Y2 (fr)
KR (1) KR860001024Y1 (fr)
AT (1) ATE5695T1 (fr)
DE (2) DE2940384A1 (fr)
ES (1) ES253283Y (fr)
HK (1) HK77185A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326479A1 (de) * 1983-07-22 1985-02-07 Brause GmbH & Co, 5860 Iserlohn Brieflocher
EP0268903A1 (fr) * 1986-11-27 1988-06-01 Firma Louis Leitz Partie inférieure pour perforateur
WO2000054943A1 (fr) * 1999-03-17 2000-09-21 Esselte Leitz Gmbh & Co Kg Perforateur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9284087B2 (en) * 2010-06-30 2016-03-15 Nippon Die Steel Co., Ltd. Die-cutting blade and case-forming die-cut blank
CN113547018A (zh) * 2021-09-01 2021-10-26 桂林福达阿尔芬大型曲轴有限公司 用于检测曲臂差的钻孔装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641254A1 (de) * 1976-09-14 1978-03-23 Leitz Fa Louis Brieflocher

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641254A1 (de) * 1976-09-14 1978-03-23 Leitz Fa Louis Brieflocher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326479A1 (de) * 1983-07-22 1985-02-07 Brause GmbH & Co, 5860 Iserlohn Brieflocher
EP0268903A1 (fr) * 1986-11-27 1988-06-01 Firma Louis Leitz Partie inférieure pour perforateur
WO2000054943A1 (fr) * 1999-03-17 2000-09-21 Esselte Leitz Gmbh & Co Kg Perforateur

Also Published As

Publication number Publication date
ATE5695T1 (de) 1984-01-15
HK77185A (en) 1985-10-18
ES253283Y (es) 1981-08-16
JPS5657800U (fr) 1981-05-18
DE2940384A1 (de) 1981-04-16
EP0026888A3 (en) 1981-08-05
DE3066011D1 (en) 1984-02-02
KR830000667U (ko) 1983-08-03
EP0026888B1 (fr) 1983-12-28
ES253283U (es) 1981-02-16
KR860001024Y1 (ko) 1986-05-31
JPS5815120Y2 (ja) 1983-03-26

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