WO2001003865A2 - Method of forming a tube - Google Patents
Method of forming a tube Download PDFInfo
- Publication number
- WO2001003865A2 WO2001003865A2 PCT/AU2000/000781 AU0000781W WO0103865A2 WO 2001003865 A2 WO2001003865 A2 WO 2001003865A2 AU 0000781 W AU0000781 W AU 0000781W WO 0103865 A2 WO0103865 A2 WO 0103865A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- tabs
- overlap
- edges
- overlapping portion
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
- B21C37/101—Making of the seams
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
- Y10T29/49922—Overedge assembling of seated part by bending over projecting prongs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49936—Surface interlocking
Definitions
- This invention relates to a method of forming a tube.
- the present invention relates to a novel method of fixing together overlapping lateral edges during formation of a tube, and to a tube thus formed.
- the invention resides in a method of forming a tube from an elongate sheet of material having a pair of spaced and parallel edges, the method including:- forming the elongate sheet into a tube such that the lateral edges of the sheet overlap to define an overlap region having an inner overlap portion and an outer overlap portion; punching the inner overlap portion and outer overlap portion to define a tab in each, said tabs being aligned such that the tab defined in the inner portion is directly underneath the tab defined in the outer portion; and folding the tabs whereby the inner overlap portion and outer overlap portion are fixed together.
- the invention resides in a tube formed according to the method defined above.
- the invention resides in a tube manufactured from an elongate sheet of material formed into a tube and having its lateral edges overlapping to define an inner overlapping portion and an outer overlapping portion, a tab defined in the inner overlapping portion, a tab defined in the outer overlapping portion, said tabs being aligned such that the tab defined in the inner overlapping portion lies directly beneath the tab defined in the outer overlapping portion, said tabs being folded such that the inner overlapping portion and outer overlapping portion are fixed together.
- the invention resides in a tube or the like including:- a longitudinally extending seam formed by overlapping opposed edges of sheet material forming the tube; and fastening means for fastening together the overlapped edges, the fastening means being integrally formed by material punched from the overlapped edges.
- the invention resides in a method of forming a tube or the like, the method including:- bending sheet material about a longitudinal axis to overlap opposed edges of the material; integrally fastening the overlapped edges by punching material from the overlapped edges.
- FIG 1 is front elevation of a tube according to the invention
- FIG 2 is an underside plan of the tube of FIG 1 ;
- FIG 3 is a side elevation with cutaway detail of the tube of FIG 1.
- a tube 10 formed from a sheet of material bent about a longitudinal axis such that the opposed lateral edges of the sheet of material overlap to define an overlapping region 12 whereat an outer overlapping portion 14 overlies an inner overlapping portion 16.
- U or V-shaped tabs 18 are punched from the inner and outer overlapping portions and thereafter bent inwardly together to the position illustrated by 18' in FIG 3 thereby mechanically fixing the inner and outer overlapping portions together. It will be understood that both the outer overlapping portion and inner overlapping portion are punched such that the tabs defined in the inner and outer portions abut each other and are bent in unison to the final interlocking position shown at 18' in FIG 3.
- the punching and bending operation is repeated at regular centres along the longitudinal length of the tube such that the overlapping seam is stabilised along its entire length.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00940042A EP1420906A4 (en) | 1999-07-07 | 2000-06-30 | Method of forming a tube |
US10/030,408 US6880581B1 (en) | 1999-07-07 | 2000-06-30 | Method of forming a tube |
AU55124/00A AU758900C (en) | 1999-07-07 | 2000-06-30 | Method of forming a tube |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPQ1493A AUPQ149399A0 (en) | 1999-07-07 | 1999-07-07 | Method of forming a tube |
AUPQ1493 | 1999-07-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001003865A2 true WO2001003865A2 (en) | 2001-01-18 |
WO2001003865A3 WO2001003865A3 (en) | 2004-02-05 |
Family
ID=3815680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2000/000781 WO2001003865A2 (en) | 1999-07-07 | 2000-06-30 | Method of forming a tube |
Country Status (4)
Country | Link |
---|---|
US (1) | US6880581B1 (en) |
EP (1) | EP1420906A4 (en) |
AU (1) | AUPQ149399A0 (en) |
WO (1) | WO2001003865A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001089735A2 (en) * | 2000-05-24 | 2001-11-29 | Bhp Steel (Jla) Pty Ltd. | Joining sheet metal |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3246609B1 (en) | 2016-05-20 | 2020-09-09 | Airbus Operations GmbH | Shrouded pipe |
EP3246610B1 (en) * | 2016-05-20 | 2019-07-03 | Airbus Operations GmbH | Shrouded pipe |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5357667A (en) * | 1992-02-12 | 1994-10-25 | Schuetz Udo | Process for producing a sheet-metal jacket for pallet containers with an inner container of a synthetic resin |
DE19749728A1 (en) * | 1997-11-11 | 1999-05-12 | Schmolz & Bickenbach | Production method for tube profile from at least one plate layer |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US518767A (en) * | 1894-04-24 | Conductor-pipe and method of joining edges of same | ||
US3129489A (en) * | 1959-03-16 | 1964-04-21 | Enamel Products | Splicer |
US3824757A (en) * | 1971-01-18 | 1974-07-23 | Snyder B | Method of joining sheet metal, and sheet metal joints |
US3728881A (en) * | 1971-01-18 | 1973-04-24 | Brazil H Sugden | Method and apparatus for joining sheet metal, and sheet metal joints |
DE3201108A1 (en) * | 1982-01-15 | 1983-07-28 | Siemens AG, 1000 Berlin und 8000 München | LOCKING SYSTEM FOR A CUFF OF SHRINKABLE MATERIAL |
US4734971A (en) * | 1987-01-12 | 1988-04-05 | Aro Metal Stamping Co., Inc. | Method of mechanically crimping overlapping sheet metal |
DE4443842A1 (en) | 1994-12-09 | 1996-06-13 | Schmolz & Bickenbach | Connection for sheet metal edges and method and device therefor |
-
1999
- 1999-07-07 AU AUPQ1493A patent/AUPQ149399A0/en not_active Abandoned
-
2000
- 2000-06-30 EP EP00940042A patent/EP1420906A4/en not_active Withdrawn
- 2000-06-30 WO PCT/AU2000/000781 patent/WO2001003865A2/en not_active Application Discontinuation
- 2000-06-30 US US10/030,408 patent/US6880581B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5357667A (en) * | 1992-02-12 | 1994-10-25 | Schuetz Udo | Process for producing a sheet-metal jacket for pallet containers with an inner container of a synthetic resin |
DE19749728A1 (en) * | 1997-11-11 | 1999-05-12 | Schmolz & Bickenbach | Production method for tube profile from at least one plate layer |
Non-Patent Citations (1)
Title |
---|
See also references of EP1420906A2 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001089735A2 (en) * | 2000-05-24 | 2001-11-29 | Bhp Steel (Jla) Pty Ltd. | Joining sheet metal |
WO2001089735A3 (en) * | 2000-05-24 | 2002-03-07 | Bhp Steel Jla Pty Ltd | Joining sheet metal |
Also Published As
Publication number | Publication date |
---|---|
EP1420906A2 (en) | 2004-05-26 |
US6880581B1 (en) | 2005-04-19 |
AUPQ149399A0 (en) | 1999-07-29 |
WO2001003865A3 (en) | 2004-02-05 |
EP1420906A4 (en) | 2004-05-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2187502B1 (en) | Laminated core and method for manufacturing the same | |
TW201118294A (en) | Thin-walled cold formed lightweight sectional element and a method of producing the same | |
US6203649B1 (en) | Method of manufacturing a flat friction ring | |
JP2001526782A (en) | Magnetic core | |
US20070047861A1 (en) | Flange sleeve and method for the production thereof | |
WO2001003865A2 (en) | Method of forming a tube | |
AU758900C (en) | Method of forming a tube | |
US4778710A (en) | One-piece ski edge with integrated tip and/or end protection | |
US5097728A (en) | Biopsy forceps jaw and method for making it | |
US5696442A (en) | Rotational velocity sensor ring apparatus and method | |
JP3165659B2 (en) | Cardboard paper folding ruler and creaser | |
US6976618B2 (en) | Tubular cartons | |
EP0252659B1 (en) | A core for a strip structure | |
EP0305088B1 (en) | A core for a strip structure | |
CN102030043B (en) | Method of forming dash panel for vehicle | |
US5921495A (en) | Housing for a safety belt device | |
EP1529670B1 (en) | Vehicle door frame and method for manufacturing the same | |
EP0053456B1 (en) | Arch formers | |
SU1524803A3 (en) | Break-open tin can | |
JP2749291B2 (en) | Ventilation impeller | |
JPS6054128B2 (en) | How to correct the feed pitch in a progressive press | |
CN113165701B (en) | Overlapping elongated steel structures and methods of producing such elongated steel structures | |
US6306188B1 (en) | Filter bags having distance elements of progressively differing lengths, and method of forming same | |
WO2006041497A1 (en) | Box beam and method for fabricating same | |
EP1923525B9 (en) | Carrier element |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 55124/00 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10030408 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000940042 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 2000940042 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000940042 Country of ref document: EP |