FR2393625A1 - Perfectionnements aux procedes et dispositifs pour poinconner des montants tubulaires d'echelles metalliques et aux montants et echelles obtenus - Google Patents

Perfectionnements aux procedes et dispositifs pour poinconner des montants tubulaires d'echelles metalliques et aux montants et echelles obtenus

Info

Publication number
FR2393625A1
FR2393625A1 FR777717422A FR7717422A FR2393625A1 FR 2393625 A1 FR2393625 A1 FR 2393625A1 FR 777717422 A FR777717422 A FR 777717422A FR 7717422 A FR7717422 A FR 7717422A FR 2393625 A1 FR2393625 A1 FR 2393625A1
Authority
FR
France
Prior art keywords
side members
punch
side member
convergence
adjusted
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
FR777717422A
Other languages
English (en)
French (fr)
Other versions
FR2393625B1 (it
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.)
Gubri SA Ets L
Original Assignee
Gubri SA Ets L
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 Gubri SA Ets L filed Critical Gubri SA Ets L
Priority to FR777717422A priority Critical patent/FR2393625A1/fr
Priority to IT7849703A priority patent/IT7849703A0/it
Priority to NL7806089A priority patent/NL7806089A/xx
Priority to DE2824945A priority patent/DE2824945C2/de
Publication of FR2393625A1 publication Critical patent/FR2393625A1/fr
Application granted granted Critical
Publication of FR2393625B1 publication Critical patent/FR2393625B1/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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
FR777717422A 1977-06-07 1977-06-07 Perfectionnements aux procedes et dispositifs pour poinconner des montants tubulaires d'echelles metalliques et aux montants et echelles obtenus Granted FR2393625A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR777717422A FR2393625A1 (fr) 1977-06-07 1977-06-07 Perfectionnements aux procedes et dispositifs pour poinconner des montants tubulaires d'echelles metalliques et aux montants et echelles obtenus
IT7849703A IT7849703A0 (it) 1977-06-07 1978-06-05 Procedimento e dispositivo per fabbricare montanti per scale metalliche
NL7806089A NL7806089A (nl) 1977-06-07 1978-06-05 Werkwijze en inrichting voor het ponsen van buisvor- mige stijlen van metalen ladders alsmede stijlen en ladders verkregen volgens deze werkwijze en met deze inrichting.
DE2824945A DE2824945C2 (de) 1977-06-07 1978-06-07 Stanzvorrichtung für die rohrförmigen Stützen von Metalleitern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR777717422A FR2393625A1 (fr) 1977-06-07 1977-06-07 Perfectionnements aux procedes et dispositifs pour poinconner des montants tubulaires d'echelles metalliques et aux montants et echelles obtenus

Publications (2)

Publication Number Publication Date
FR2393625A1 true FR2393625A1 (fr) 1979-01-05
FR2393625B1 FR2393625B1 (it) 1980-02-15

Family

ID=9191787

Family Applications (1)

Application Number Title Priority Date Filing Date
FR777717422A Granted FR2393625A1 (fr) 1977-06-07 1977-06-07 Perfectionnements aux procedes et dispositifs pour poinconner des montants tubulaires d'echelles metalliques et aux montants et echelles obtenus

Country Status (4)

Country Link
DE (1) DE2824945C2 (it)
FR (1) FR2393625A1 (it)
IT (1) IT7849703A0 (it)
NL (1) NL7806089A (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307715A (en) * 1992-08-31 1994-05-03 Caterpillar Inc. Angle punching die arrangement
AT409097B (de) * 2000-06-16 2002-05-27 Baumgartner Helmuth Ing Vorrichtung zum stanzen eines loches in ein hohlprofil
GB0915220D0 (en) * 2009-09-02 2009-10-07 Summers Shauna Method and apparatus for forming holes in a hollow tubular body
CN103264091B (zh) * 2013-07-05 2014-12-17 武汉大学 一种双面冲孔的方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1162355A (en) * 1966-12-08 1969-08-27 Leopold Osthoff Punching Holes in Elongated Bodies
DE6806188U (de) * 1968-11-09 1970-08-06 Osthoff Leopold Vorrichtung zum stanzen von loechern in die wandung von hohlkoerpern beliebigen querschnitts.

Also Published As

Publication number Publication date
DE2824945C2 (de) 1983-12-15
IT7849703A0 (it) 1978-06-05
DE2824945A1 (de) 1978-12-14
NL7806089A (nl) 1978-12-11
FR2393625B1 (it) 1980-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse