FR2376707A1 - Flexible strip for perforating printed paper sheets - has thin strip bent into T-shape between cylinder with helical groove and shaping disc - Google Patents

Flexible strip for perforating printed paper sheets - has thin strip bent into T-shape between cylinder with helical groove and shaping disc

Info

Publication number
FR2376707A1
FR2376707A1 FR7700323A FR7700323A FR2376707A1 FR 2376707 A1 FR2376707 A1 FR 2376707A1 FR 7700323 A FR7700323 A FR 7700323A FR 7700323 A FR7700323 A FR 7700323A FR 2376707 A1 FR2376707 A1 FR 2376707A1
Authority
FR
France
Prior art keywords
strip
cylinder
bent
shape
paper sheets
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
FR7700323A
Other languages
French (fr)
Other versions
FR2376707B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7700323A priority Critical patent/FR2376707A1/en
Publication of FR2376707A1 publication Critical patent/FR2376707A1/en
Application granted granted Critical
Publication of FR2376707B1 publication Critical patent/FR2376707B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

The strip has a narrow, sharp edges, ridge which protrudes from one of its faces, so that the section of the strip is approximately 'T' shaped. The strip is bent at right angles to its base, to give it the shape which is to be cut. The bending fixture consists of a base (30) on which a vertical cylinder (32) with square thread (34) is mounted. The depth of the thread is slightly less than half the width of the base surface of the strip. A screw spindle (38) is mounted centrally in the cylinder and has the same thread pitch as the cylinder. A horizontal pivoting arm (44) pivots with a nut (46) on the screw spindle. a grooved disc (70) is mounted no the arm and can be moved towards the threaded cylinder. The strip to be bent is placed between the cylinder and the disc in the thread and the groove. The strip is bent by pushing the arm.
FR7700323A 1977-01-07 1977-01-07 Flexible strip for perforating printed paper sheets - has thin strip bent into T-shape between cylinder with helical groove and shaping disc Granted FR2376707A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7700323A FR2376707A1 (en) 1977-01-07 1977-01-07 Flexible strip for perforating printed paper sheets - has thin strip bent into T-shape between cylinder with helical groove and shaping disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7700323A FR2376707A1 (en) 1977-01-07 1977-01-07 Flexible strip for perforating printed paper sheets - has thin strip bent into T-shape between cylinder with helical groove and shaping disc

Publications (2)

Publication Number Publication Date
FR2376707A1 true FR2376707A1 (en) 1978-08-04
FR2376707B1 FR2376707B1 (en) 1980-06-06

Family

ID=9185220

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700323A Granted FR2376707A1 (en) 1977-01-07 1977-01-07 Flexible strip for perforating printed paper sheets - has thin strip bent into T-shape between cylinder with helical groove and shaping disc

Country Status (1)

Country Link
FR (1) FR2376707A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE231836C (en) *
DE94984C (en) *
US1505347A (en) * 1923-04-05 1924-08-19 Hoyt Heater Company Coil-winding machine
US1604172A (en) * 1924-08-28 1926-10-26 Klinkmann Ernst Device for winding cylindrical wire springs
DE526752C (en) * 1929-05-18 1931-06-10 Hilgers Maschinen Und App Bau Machine for the screw-shaped bending of pipes
US3174517A (en) * 1962-07-25 1965-03-23 Edgar D Wilson Bending tool
US3223579A (en) * 1958-09-22 1965-12-14 Rodger M Dorland Pigment coated paper including polyvinyl alcohol binder as hardboard overlay
US3750445A (en) * 1969-10-13 1973-08-07 D Miles Tube-coiling apparatus
DE2264590B2 (en) * 1972-02-28 1977-09-22 Ausscheidung aus 22 09 340 Huhnen, Joachim, Dipl-Ing, 7141 Steinheim COIL SPRING MACHINE

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE231836C (en) *
DE94984C (en) *
US1505347A (en) * 1923-04-05 1924-08-19 Hoyt Heater Company Coil-winding machine
US1604172A (en) * 1924-08-28 1926-10-26 Klinkmann Ernst Device for winding cylindrical wire springs
DE526752C (en) * 1929-05-18 1931-06-10 Hilgers Maschinen Und App Bau Machine for the screw-shaped bending of pipes
US3223579A (en) * 1958-09-22 1965-12-14 Rodger M Dorland Pigment coated paper including polyvinyl alcohol binder as hardboard overlay
US3174517A (en) * 1962-07-25 1965-03-23 Edgar D Wilson Bending tool
US3750445A (en) * 1969-10-13 1973-08-07 D Miles Tube-coiling apparatus
DE2264590B2 (en) * 1972-02-28 1977-09-22 Ausscheidung aus 22 09 340 Huhnen, Joachim, Dipl-Ing, 7141 Steinheim COIL SPRING MACHINE

Also Published As

Publication number Publication date
FR2376707B1 (en) 1980-06-06

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Legal Events

Date Code Title Description
ST Notification of lapse