EP0306678A2 - Perforateur à poinçon unique - Google Patents

Perforateur à poinçon unique Download PDF

Info

Publication number
EP0306678A2
EP0306678A2 EP88111940A EP88111940A EP0306678A2 EP 0306678 A2 EP0306678 A2 EP 0306678A2 EP 88111940 A EP88111940 A EP 88111940A EP 88111940 A EP88111940 A EP 88111940A EP 0306678 A2 EP0306678 A2 EP 0306678A2
Authority
EP
European Patent Office
Prior art keywords
shells
punch according
punch
letter punch
letter
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
EP88111940A
Other languages
German (de)
English (en)
Other versions
EP0306678A3 (en
EP0306678B1 (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 AT88111940T priority Critical patent/ATE58083T1/de
Publication of EP0306678A2 publication Critical patent/EP0306678A2/fr
Publication of EP0306678A3 publication Critical patent/EP0306678A3/de
Application granted granted Critical
Publication of EP0306678B1 publication Critical patent/EP0306678B1/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
    • B26F1/32—Hand-held perforating or punching apparatus, e.g. awls
    • B26F1/36—Punching or perforating pliers

Definitions

  • the invention relates to a single-hole letter punch with a punch guide and a die containing and provided with an insertion slot and a chip chamber and with a lower part hinged to a punch under the action of a return spring acting pressure lever.
  • Such a one-hole letter punch can be used, for example, as a small pocket punch. In principle, however, there is also the possibility of combining the fully assembled single-hole punchers into multiple holes.
  • the invention has for its object to design a one-hole punch hole punch of the type mentioned above so that its individual parts can be easily and automatically manufactured and assembled and that a reliably functioning and robust construction is still guaranteed.
  • the lower part consists of two half-shells which are essentially mirror-symmetrical to one another with respect to a vertical parting plane, preferably made of plastic injection-molded parts or of aluminum die-cast parts and which can be connected to one another in the region of their parting plane, preferably by means of catches, clips, rivets, adhesives or screws.
  • the walls of the half-shells together delimit the chip chamber.
  • the half-shells also contain according to the invention each have a semi-cylindrical recess that complements a cylinder housing that is open at the top and concealed by the pressure lever and accommodates the spring and the punch.
  • the spring and the punch can either be inserted one after the other or together from above into the cylinder housing before the pressure lever is articulated on the punch lower part with its pressure body acting on the punch.
  • the resulting assembly options are particularly easy to automate.
  • slot recesses are arranged in the half-shells, which complement one another to form a wide slot and into which an essentially U-shaped, bent metal insert is used, which forms the insertion slot, contains the punch guide and the die.
  • An advantage of this insert part is that the punch guide and the die are immovably connected to one another from one part, so that a reliable insertion of the punch into the die is ensured. Due to its symmetrical shape, the insert element can also be used as a reversible die. A particularly simple and exact placement of the insert in the perforated lower part is achieved in that recesses are arranged in the area of the slot recesses for the positive reception of the insert.
  • mutually facing edge-open channel recesses are arranged on the half-shells, which complement each other to form a guide channel for receiving a measuring bar.
  • the measuring bar can consist of an elastically flexible band material, preferably of spring band steel, at one end of which is arranged a stop angle, preferably pivotable about an axis vertical to the band plane, for the edges of the documents to be punched.
  • the channel recesses forming the guide channel expediently have a rectilinear section arranged in the foot region of the lower part and a curved section arranged in the rear region of the lower part and leading to the upper side.
  • the guide channel is preferably used to store the measuring bar when not in use.
  • the measuring bar removed from the guide channel is inserted into a transverse opening arranged below the insertion slot and inserted more or less deeply in accordance with its format markings printed on the surface.
  • the swiveling stop bracket enables double holes in both end positions.
  • several single-hole punchers can be combined by means of spacers to form a multiple-hole punch with predeterminable hole spacings.
  • at least one hole or opening for receiving a spacer rod with a predetermined length is arranged in at least one of the two half-shells of the bottom punch parts.
  • the one-hole punchers shown in the drawing are particularly suitable as pocket punches because of their small dimensions. They essentially consist of a bottom part 15 provided with an insertion slot 10 and a chip chamber 12 and equipped with a punch 14, and a bottom part 15 pivotably mounted on the bottom part 15 about a horizontal axis l6, with a pressure element 18 designed as a crossbar under the action of a Return spring 20 standing punch 14 acting pressure lever 22nd
  • the lower part 15 is composed of two substantially mirror-symmetrical half-shells 15 ', 15' on their vertical parting plane 24 with a screw or adhesive connection that they limit the chip chamber 12 on the inside, which via a chip channel 26 with the underside of Die 28 is connected. Furthermore, the two half-shells 15 ', 15 ⁇ have semi-cylindrical recesses which complement one another to form an upwardly open cylinder housing 30 for the return spring 20 and the punch 14.
  • the return spring 20 and the punch 14 provided with a widened head piece 32 can be simply inserted one after the other or simultaneously into the cylinder housing 30 from above before the pressure lever 22 is articulated.
  • the punch 14 and the spring 20 can be exchanged correspondingly easily if necessary.
  • the holes forming the punch guide 34 and the die 28 are arranged in a substantially U-shaped insert 36 made of metal, which is inserted into the recesses of the slot recesses 10 ', 10' when the lower part 15 is assembled from its two half-shells 15 ', 15' and there is positively embedded after connecting the half-shells 15 ', 15 ⁇ .
  • the punch guide 34 and the die 28 are immovably connected to one another, which ensures that the punch 14 is inserted well into the die 28 regardless of the load.
  • the guide channel 38 has a straight course and in the rear area opens into a curved section 42 which, in the case of FIG. 1, forms a full circle and in the case of FIG. 2 a partially circular deflection leading into an upper straight section 44 .
  • the measuring bar 40 additionally serves as a closure member of the opening 46 of the chip chamber 12 pointing upward in the inserted state.
  • the measuring strip 40 consists of a band 48 of spring band steel which is curved in the transverse direction, as is also used for rolling scales, for example. At one end an angle piece 52 which can be pivoted about the axis 50 in two end positions is articulated with a stop 54 on the measuring bar 40, while at the other end a stop bolt 56 is riveted.
  • the guide channel 38, 24, 44 only serves to store the measuring bar 40 when not in use. In use, the measuring strip 40 is removed from the guide channel 38 and inserted through the transverse opening 58 of the lower part 15 of the punch.
  • a format scale is printed on the measuring bar 40, which, together with the stop 54, enables the punching of documents with exact format. In the case of FIG. 1, a closed opening 58 in the case of FIG. 2 is provided for the measuring bar 40.
  • the pressure lever 22 provided with lateral bends 60 is mounted in the front area with a continuous bolt 16 on a solid bearing block 62 of the half-shell halves 15 ', 15'. In the rear area it also has on one side an edge-open opening 64 and on the other side a closed opening 66 which are intended for receiving a locking bolt 68 which can be displaced to a limited extent on the lower part 15 of the punch.
  • a foam strip 70 is glued to the inside of the pressure lever, which in the locked position of the pressure lever 22 closes the opening 46 of the chip chamber 12 pointing upward.
  • the shoulder 72 of the lower part forms a limit stop against which the front bent narrow side edge 74 of the pressure lever 22 abuts.

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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
EP88111940A 1987-09-08 1988-07-25 Perforateur à poinçon unique Expired - Lifetime EP0306678B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88111940T ATE58083T1 (de) 1987-09-08 1988-07-25 Einloch-brieflocher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3730069 1987-09-08
DE19873730069 DE3730069A1 (de) 1987-09-08 1987-09-08 Einloch-brieflocher

Publications (3)

Publication Number Publication Date
EP0306678A2 true EP0306678A2 (fr) 1989-03-15
EP0306678A3 EP0306678A3 (en) 1989-09-27
EP0306678B1 EP0306678B1 (fr) 1990-11-07

Family

ID=6335500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111940A Expired - Lifetime EP0306678B1 (fr) 1987-09-08 1988-07-25 Perforateur à poinçon unique

Country Status (4)

Country Link
EP (1) EP0306678B1 (fr)
JP (1) JPH0192099A (fr)
AT (1) ATE58083T1 (fr)
DE (2) DE3730069A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6286745B1 (en) 1995-07-29 2001-09-11 C-Tech Ag Multipurpose hand-held implement of the pocket knife type
US6460433B1 (en) 1997-10-16 2002-10-08 C-Tech Ag Multipurpose hand device
US6493893B1 (en) 1997-01-28 2002-12-17 Ctech Ag Multi-purpose hand-held device
USD493837S1 (en) 1998-07-23 2004-08-03 Ctech Ag Multi purpose hand operated office utensil
US6779425B2 (en) 2000-11-27 2004-08-24 Ctech Ag Multipurpose handheld implement
GB2401569A (en) * 2003-05-14 2004-11-17 Tim Scotford Paper cutting device
USD510106S1 (en) 1998-07-23 2005-09-27 Ctech Ag Multi purpose hand operated office utensil
USD517391S1 (en) 2003-08-29 2006-03-21 Ctech Ag Multi purpose hand operated utensil

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD448410S1 (en) 1998-07-23 2001-09-25 C-Tech Ag Multi purpose hand operated office utensil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE925110C (de) * 1953-03-07 1955-03-14 Heinz Becker Taschenlocher
DE1823325U (de) * 1959-12-18 1960-12-15 Soennecken Fa F Locher fuer schriftgut.
DE2055094C3 (de) * 1970-11-10 1981-03-12 Christoph B.H. Ing.(Grad.) 3000 Hannover Manusch Locher mit nur einem Schnittstempel
GB2184384B (en) * 1985-12-07 1988-12-14 Perforex Ltd Punch
DE3640627C1 (de) * 1986-11-27 1988-03-03 Leitz Fa Louis Brieflocherunterteil

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6286745B1 (en) 1995-07-29 2001-09-11 C-Tech Ag Multipurpose hand-held implement of the pocket knife type
US6941604B2 (en) 1995-07-29 2005-09-13 Ctech Ag Multipurpose hand-held implement of the pocket-knife type
US6874189B2 (en) 1995-07-29 2005-04-05 Ctech Ag Multipurpose hand-held implement of the pocket-knife type
US6708360B2 (en) 1997-01-28 2004-03-23 Ctech Ag Multipurpose hand-held implement
US6493893B1 (en) 1997-01-28 2002-12-17 Ctech Ag Multi-purpose hand-held device
US6460433B1 (en) 1997-10-16 2002-10-08 C-Tech Ag Multipurpose hand device
USD493837S1 (en) 1998-07-23 2004-08-03 Ctech Ag Multi purpose hand operated office utensil
USD510106S1 (en) 1998-07-23 2005-09-27 Ctech Ag Multi purpose hand operated office utensil
US6948409B2 (en) 1998-10-16 2005-09-27 Ctech Ag Multipurpose handheld implement
US6779425B2 (en) 2000-11-27 2004-08-24 Ctech Ag Multipurpose handheld implement
GB2401569A (en) * 2003-05-14 2004-11-17 Tim Scotford Paper cutting device
GB2401569B (en) * 2003-05-14 2005-03-30 Tim Scotford Paper-cutting device
USD517391S1 (en) 2003-08-29 2006-03-21 Ctech Ag Multi purpose hand operated utensil

Also Published As

Publication number Publication date
DE3730069A1 (de) 1989-03-23
ATE58083T1 (de) 1990-11-15
EP0306678A3 (en) 1989-09-27
DE3861004D1 (de) 1990-12-13
JPH0192099A (ja) 1989-04-11
DE3730069C2 (fr) 1989-11-23
EP0306678B1 (fr) 1990-11-07

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