FR2269385A1 - Bending mandrel for tube bending machine - has discs threaded on cable with end stop and hole receiving locking pin - Google Patents

Bending mandrel for tube bending machine - has discs threaded on cable with end stop and hole receiving locking pin

Info

Publication number
FR2269385A1
FR2269385A1 FR7415200A FR7415200A FR2269385A1 FR 2269385 A1 FR2269385 A1 FR 2269385A1 FR 7415200 A FR7415200 A FR 7415200A FR 7415200 A FR7415200 A FR 7415200A FR 2269385 A1 FR2269385 A1 FR 2269385A1
Authority
FR
France
Prior art keywords
cable
locking pin
end stop
hole receiving
receiving locking
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
FR7415200A
Other languages
French (fr)
Other versions
FR2269385B1 (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.)
BELLIOT JACQUES FR
Original Assignee
BELLIOT JACQUES FR
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 BELLIOT JACQUES FR filed Critical BELLIOT JACQUES FR
Priority to FR7415200A priority Critical patent/FR2269385A1/en
Publication of FR2269385A1 publication Critical patent/FR2269385A1/en
Application granted granted Critical
Publication of FR2269385B1 publication Critical patent/FR2269385B1/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
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
    • B21D9/03—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The mandrel comprises a bar (1) fitting inside one tube leg (6), its end rounded and having a blind axial hole. Each bending disc (5) has an outer and an inner hemispherical profile and a central hole. The disc connecting link is made from the wire stranded cable (3), its free end terminating in an enlarged gland or stop (7) and the remaining end (8) brazed to prevent fraying. A short distance in from this brazed end is an eye used to locate a holding pin (10) fitting in a cross hole in the bar (1). Discs fit closely on the cable, their number being readily altered to suit requirements.
FR7415200A 1974-05-02 1974-05-02 Bending mandrel for tube bending machine - has discs threaded on cable with end stop and hole receiving locking pin Granted FR2269385A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7415200A FR2269385A1 (en) 1974-05-02 1974-05-02 Bending mandrel for tube bending machine - has discs threaded on cable with end stop and hole receiving locking pin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7415200A FR2269385A1 (en) 1974-05-02 1974-05-02 Bending mandrel for tube bending machine - has discs threaded on cable with end stop and hole receiving locking pin

Publications (2)

Publication Number Publication Date
FR2269385A1 true FR2269385A1 (en) 1975-11-28
FR2269385B1 FR2269385B1 (en) 1979-09-28

Family

ID=9138375

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415200A Granted FR2269385A1 (en) 1974-05-02 1974-05-02 Bending mandrel for tube bending machine - has discs threaded on cable with end stop and hole receiving locking pin

Country Status (1)

Country Link
FR (1) FR2269385A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457137A1 (en) * 1979-05-22 1980-12-19 Siekmann & Co Rohrbogenwerk BENDER FOR TUBES
CN113000653A (en) * 2021-02-04 2021-06-22 东莞市新美洋技术有限公司 Core rod for processing bent pipe
CN114011925A (en) * 2022-01-10 2022-02-08 江苏永占管道科技有限公司 Metal pipeline bending device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289570B (en) * 2014-09-25 2016-06-29 浙江工业大学 Elastic core rod for bent pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457137A1 (en) * 1979-05-22 1980-12-19 Siekmann & Co Rohrbogenwerk BENDER FOR TUBES
CN113000653A (en) * 2021-02-04 2021-06-22 东莞市新美洋技术有限公司 Core rod for processing bent pipe
CN113000653B (en) * 2021-02-04 2023-03-31 东莞市新美洋技术有限公司 Core rod for processing bent pipe
CN114011925A (en) * 2022-01-10 2022-02-08 江苏永占管道科技有限公司 Metal pipeline bending device

Also Published As

Publication number Publication date
FR2269385B1 (en) 1979-09-28

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse