FR2263871A1 - Reciprocating mandrel for forming sockets on plastic pipe - by deflecting hard elastic collar to create an undercut socket profile - Google Patents

Reciprocating mandrel for forming sockets on plastic pipe - by deflecting hard elastic collar to create an undercut socket profile

Info

Publication number
FR2263871A1
FR2263871A1 FR7408584A FR7408584A FR2263871A1 FR 2263871 A1 FR2263871 A1 FR 2263871A1 FR 7408584 A FR7408584 A FR 7408584A FR 7408584 A FR7408584 A FR 7408584A FR 2263871 A1 FR2263871 A1 FR 2263871A1
Authority
FR
France
Prior art keywords
socket
piston
pipe
elastic collar
deflecting
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
FR7408584A
Other languages
French (fr)
Other versions
FR2263871B1 (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.)
EQUIP RESEAUX CANALISATIONS
Original Assignee
EQUIP RESEAUX CANALISATIONS
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 EQUIP RESEAUX CANALISATIONS filed Critical EQUIP RESEAUX CANALISATIONS
Priority to FR7408584A priority Critical patent/FR2263871A1/en
Publication of FR2263871A1 publication Critical patent/FR2263871A1/en
Application granted granted Critical
Publication of FR2263871B1 publication Critical patent/FR2263871B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove
    • B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means

Abstract

Mandrel is used for producing a tulip or undercut socket on the end of a thermoplastic pipe by aligning the pipe end with one end of a hydraulic chamber enclosing two coaxial pistons. The larger piston has a conical nose which produces a tubular dilation of the pipe end. Once the full depth of the basic socket has been formed, the inner piston advances through the outer mandrel so that radially projecting shoes on the inner piston deflect a hard but elastic collar mounted behind the nose of the larger piston to produce further local radial dilation of the pipe socket profile. Reversing the sequence of the piston motions allows the flexible collar to retract within the socket and retire through the relatively small socket mouth as shown.
FR7408584A 1974-03-13 1974-03-13 Reciprocating mandrel for forming sockets on plastic pipe - by deflecting hard elastic collar to create an undercut socket profile Granted FR2263871A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7408584A FR2263871A1 (en) 1974-03-13 1974-03-13 Reciprocating mandrel for forming sockets on plastic pipe - by deflecting hard elastic collar to create an undercut socket profile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7408584A FR2263871A1 (en) 1974-03-13 1974-03-13 Reciprocating mandrel for forming sockets on plastic pipe - by deflecting hard elastic collar to create an undercut socket profile

Publications (2)

Publication Number Publication Date
FR2263871A1 true FR2263871A1 (en) 1975-10-10
FR2263871B1 FR2263871B1 (en) 1976-10-08

Family

ID=9136271

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7408584A Granted FR2263871A1 (en) 1974-03-13 1974-03-13 Reciprocating mandrel for forming sockets on plastic pipe - by deflecting hard elastic collar to create an undercut socket profile

Country Status (1)

Country Link
FR (1) FR2263871A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380859A1 (en) * 1977-02-17 1978-09-15 Harsco Corp METHOD AND APPARATUS FOR GIVING A BELL SHAPE AT THE END OF A PLASTIC TUBE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380859A1 (en) * 1977-02-17 1978-09-15 Harsco Corp METHOD AND APPARATUS FOR GIVING A BELL SHAPE AT THE END OF A PLASTIC TUBE

Also Published As

Publication number Publication date
FR2263871B1 (en) 1976-10-08

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Legal Events

Date Code Title Description
ST Notification of lapse