EP0413379A1 - Brieflocher - Google Patents

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Info

Publication number
EP0413379A1
EP0413379A1 EP90202017A EP90202017A EP0413379A1 EP 0413379 A1 EP0413379 A1 EP 0413379A1 EP 90202017 A EP90202017 A EP 90202017A EP 90202017 A EP90202017 A EP 90202017A EP 0413379 A1 EP0413379 A1 EP 0413379A1
Authority
EP
European Patent Office
Prior art keywords
pressure lever
apron
edges
bearing
bearing blocks
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.)
Pending
Application number
EP90202017A
Other languages
German (de)
English (en)
French (fr)
Inventor
Roland Würthner
Siegfried Hauff
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6387097&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0413379(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Louis Leitz Firma filed Critical Louis Leitz Firma
Publication of EP0413379A1 publication Critical patent/EP0413379A1/de
Pending 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 letter punch with a lower part, a pivotally mounted on lateral bearing blocks of the lower part, acting on the punch on the lower part, acting against the restoring force of a spring pressure lever, the pressure lever being bent laterally downwards, the bearing blocks overlapping on the outside and one on the end face Pressure lever in the area between the bearing tabs bent down, under the action of the restoring force of the spring against abutting edges on the bearing blocks has apron.
  • the invention is based on the object, the well-known letter punch the beginning benen type to improve in such a way that a risk of injury is avoided even with improper handling of the punch hole.
  • the solution according to the invention is based on the knowledge that when the pressure lever is actuated, no gap which is accessible from the outside may occur, into which hand parts can inadvertently penetrate even when handled improperly.
  • the stop edges are arranged on thin-walled cantilevers of the bearing blocks aligned parallel to the bearing lugs and that the apron has a bend on its side edges near its lower edge, which together with the adjacent bearing tab, a gap open towards the lower part for the engagement of the boom is limited.
  • the stop edge can either be formed by an upward-facing step that abuts against an upper, preferably arranged on the apron limiting edge of the gap or by a front edge of the arm that abuts the apron in the region near the gap.
  • apron is also formed in a shell-like manner on its inner surface facing the partially cylindrical extension part.
  • the arrangement of the stops provided according to the second variant of the invention makes it possible to arrange in the area between the lower edge of the apron and the stops a transversely displaceable on the apron between two end positions, in one end position engaging in the swivel path of one of the upper boom edges, designed as a hold-down for the pressure lever .
  • the stop slide can preferably be locked in a latching connection at least in the end position disengaged from the pivoting path of the boom.
  • the stop slide is advantageously guided in a substantially horizontal elongated hole in the apron and has an actuating head which extends through the elongated hole to the end face of the punch.
  • the distance between the apron and a cross bar covering the punch at the end face is selected at least finger width over the entire swivel range of the pressure lever. This ensures that accidental pinching of hand parts is avoided in this area as well.
  • the sheet metal punch shown in FIGS. 1 and 2 essentially consists of a lower part 10, a bearing part 12 rigidly connected to the lower part and an on the bearing blocks 14 of the bearing part 12 about an axis 16 pivotably mounted pressure lever 18.
  • In the bearing part 12 are also surrounded by a helical spring 20 punch 22, which are pushed downward against the restoring force of the springs 20 when the pressure lever 18 is pushed down while penetrating the insertion slot 24 and a die opening 26 in the lower part 10.
  • the pressure lever is automatically pivoted back into its starting position under the action of the springs 20.
  • the pressure lever 18 has two bearing tabs 28 which are bent laterally downward and overlap the bearing blocks 14 on the outside. Furthermore, the pressure lever 18 is provided with a stop apron 30 which is bent downward on the end face and connects the two bearing lugs 28 to one another. In the vicinity of its side edges and in the region of its lower edge 32, the apron 30 has a flap-like bend 34 pointing backwards, which, together with the adjacent bearing tab 28, delimits a gap 38 which is open at the bottom and closed at the top by a punched edge 36 in the apron. A thin-walled arm 40 of the bearing block 14 engages in this gap and has a step 42 serving as a stop for the transverse edge 36 arranged on the skirt 30.
  • an edge part of the arm 40 which engages under the apron 30 serves as a stop for the pressure lever. Since the width of the gap 38 can be made smaller than 4 mm, there is no danger that a finger is pinched between the stop edges. It is only important that the bend 34 is so long that the boom 40 still engages in the gap 38 even when the pressure lever 18 is depressed.
  • the punch guides in the bearing part 12 are covered on the end face by a cross bar 43.
  • the apron 30 and the crossbar 43 are at least a finger-wide apart from one another in all swivel positions of the pressure lever 18.
  • the lower part 10 and the bearing blocks 14 are integrally connected to one another, leaving the insertion slot 24 free.
  • On the inside of the apron 30 project at a distance from the lower edge 32 stop cams 54, with which the pressure lever 18 strikes against the upper edges 52 of the boom 50 when pivoted back under the action of the spring force.
  • the arms 50 have a part-cylindrical curvature coaxial to the pivot axis 16 in their part which engages under the skirt 30, while the skirt 30 on its side facing the arms 50 is formed accordingly bowl-shaped.
  • the described arrangement of the stops of the cast hole punch according to FIGS. 3 and 4 is also suitable for accommodating an adjustable stop slide 56 in the area between the lower skirt edge 32 and one of the stop cams 54.
  • a stop slide 56 which is arranged displaceably in a horizontal slot 58 of the skirt 30 serves as a hold-down device for the pressure lever 18, which can be brought into engagement with the adjacent upper edge 52 of the jib, for example for transport or storage purposes.
  • the stop slide 56 should preferably be lockable in a latching connection at least in the end position disengaged from the pivoting path of the boom 50 on the pressure lever 18.

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)
EP90202017A 1989-08-14 1990-07-06 Brieflocher Pending EP0413379A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3926838 1989-08-14
DE3926838 1989-08-14

Publications (1)

Publication Number Publication Date
EP0413379A1 true EP0413379A1 (de) 1991-02-20

Family

ID=6387097

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90202017A Pending EP0413379A1 (de) 1989-08-14 1990-07-06 Brieflocher
EP90910660A Expired - Lifetime EP0487542B1 (de) 1989-08-14 1990-07-06 Brieflocher

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP90910660A Expired - Lifetime EP0487542B1 (de) 1989-08-14 1990-07-06 Brieflocher

Country Status (12)

Country Link
EP (2) EP0413379A1 (pt)
JP (1) JPH0755479B2 (pt)
KR (1) KR920700860A (pt)
CN (1) CN1049470A (pt)
DE (1) DE59004449D1 (pt)
ES (1) ES2049479T3 (pt)
FI (1) FI920089A0 (pt)
IE (1) IE902919A1 (pt)
IS (1) IS1575B (pt)
PT (1) PT94981A (pt)
TR (1) TR25118A (pt)
WO (1) WO1991002633A1 (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275477A1 (de) * 2001-07-12 2003-01-15 NOVUS GmbH & Co. KG Papierlocher
WO2012052028A1 (en) * 2010-10-21 2012-04-26 Lego A/S A toy building set

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734744B4 (de) * 1997-08-12 2005-08-04 Esselte Leitz Gmbh & Co. Kg Locher
JP3924654B2 (ja) * 2003-09-30 2007-06-06 コクヨ株式会社 パンチ装置及び連結具
FR2914873B1 (fr) * 2007-04-16 2009-05-22 Maped Soc Par Actions Simplifi Perforateur a papier avec dispositif de centrage.
DE102008003576A1 (de) 2008-01-09 2009-07-16 Ueberschär, Volker Vorrichtung zum Stanzen und/oder Schneiden von Blattmaterial
CN103301972A (zh) * 2013-05-31 2013-09-18 吉铨精密机械(苏州)有限公司 一种喷淋水管装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB236162A (en) * 1924-06-30 1926-05-27 Frederick John Kline Paper perforating device
CH271950A (de) * 1949-02-25 1950-11-30 Styner & Bienz Ag Locher.
GB1157983A (en) * 1966-06-23 1969-07-09 Myers Sons Ltd M Paper Punching Devices
US4688457A (en) * 1983-01-10 1987-08-25 Rolodex Corporation Heavy duty paper punch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB236162A (en) * 1924-06-30 1926-05-27 Frederick John Kline Paper perforating device
CH271950A (de) * 1949-02-25 1950-11-30 Styner & Bienz Ag Locher.
GB1157983A (en) * 1966-06-23 1969-07-09 Myers Sons Ltd M Paper Punching Devices
US4688457A (en) * 1983-01-10 1987-08-25 Rolodex Corporation Heavy duty paper punch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275477A1 (de) * 2001-07-12 2003-01-15 NOVUS GmbH & Co. KG Papierlocher
WO2012052028A1 (en) * 2010-10-21 2012-04-26 Lego A/S A toy building set

Also Published As

Publication number Publication date
KR920700860A (ko) 1992-08-10
DE59004449D1 (de) 1994-03-10
ES2049479T3 (es) 1994-04-16
FI920089A0 (fi) 1992-01-09
JPH05504099A (ja) 1993-07-01
TR25118A (tr) 1992-11-01
EP0487542B1 (de) 1994-01-26
IE902919A1 (en) 1991-02-27
PT94981A (pt) 1991-04-18
EP0487542A1 (de) 1992-06-03
IS3591A7 (is) 1991-02-15
IS1575B (is) 1995-06-08
JPH0755479B2 (ja) 1995-06-14
CN1049470A (zh) 1991-02-27
WO1991002633A1 (de) 1991-03-07

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 90910660.1/0487542 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 14.07.92.