FR2029944A5 - Injection moulded plastics chains - Google Patents

Injection moulded plastics chains

Info

Publication number
FR2029944A5
FR2029944A5 FR6902307A FR6902307A FR2029944A5 FR 2029944 A5 FR2029944 A5 FR 2029944A5 FR 6902307 A FR6902307 A FR 6902307A FR 6902307 A FR6902307 A FR 6902307A FR 2029944 A5 FR2029944 A5 FR 2029944A5
Authority
FR
France
Prior art keywords
injection moulded
moulded plastics
winding
chains
mandrel
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.)
Expired
Application number
FR6902307A
Other languages
French (fr)
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 FR6902307A priority Critical patent/FR2029944A5/en
Application granted granted Critical
Publication of FR2029944A5 publication Critical patent/FR2029944A5/en
Expired 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/12—Bending or folding helically, e.g. for making springs
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/12—Chains

Abstract

Extruded plastics cane is rolled around a rotating mandrel whose cross-section corresponds to the internal profile of each link, to form a winding of joined coils. The winding is sawn longitudinally along a mandrel generatrix to form open helicoidal rings, which are then flattened and have their ends welded together, after engagement with the preceding ink.
FR6902307A 1969-01-31 1969-01-31 Injection moulded plastics chains Expired FR2029944A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6902307A FR2029944A5 (en) 1969-01-31 1969-01-31 Injection moulded plastics chains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6902307A FR2029944A5 (en) 1969-01-31 1969-01-31 Injection moulded plastics chains

Publications (1)

Publication Number Publication Date
FR2029944A5 true FR2029944A5 (en) 1970-10-23

Family

ID=9028537

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6902307A Expired FR2029944A5 (en) 1969-01-31 1969-01-31 Injection moulded plastics chains

Country Status (1)

Country Link
FR (1) FR2029944A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679391A (en) * 1984-11-14 1987-07-14 Valtiero Tizzi Method of manufacturing jewelry chains from decorated helicoid members and/or links
FR2903627A1 (en) * 2006-07-13 2008-01-18 Piero Paita Manufacturing a chain constituted of assembly of mesh with plastic material, comprises blending a mesh, assembling another mesh by passing it through a gap obtained by blending, and maintaining a shape of material at a level of blending

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679391A (en) * 1984-11-14 1987-07-14 Valtiero Tizzi Method of manufacturing jewelry chains from decorated helicoid members and/or links
FR2903627A1 (en) * 2006-07-13 2008-01-18 Piero Paita Manufacturing a chain constituted of assembly of mesh with plastic material, comprises blending a mesh, assembling another mesh by passing it through a gap obtained by blending, and maintaining a shape of material at a level of blending

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Legal Events

Date Code Title Description
ST Notification of lapse