WO1994011663A1 - Tube ondule fendu auto-bloquant - Google Patents

Tube ondule fendu auto-bloquant Download PDF

Info

Publication number
WO1994011663A1
WO1994011663A1 PCT/US1992/009994 US9209994W WO9411663A1 WO 1994011663 A1 WO1994011663 A1 WO 1994011663A1 US 9209994 W US9209994 W US 9209994W WO 9411663 A1 WO9411663 A1 WO 9411663A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking members
male
mold plates
sleeve
members
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.)
Ceased
Application number
PCT/US1992/009994
Other languages
English (en)
Inventor
Donald Dekle Bartholomew
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.)
Proprietary Technology Inc
Original Assignee
Proprietary Technology Inc
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 Proprietary Technology Inc filed Critical Proprietary Technology Inc
Priority to BR9207176A priority Critical patent/BR9207176A/pt
Priority to EP93900561A priority patent/EP0670019A4/fr
Priority to JP6512038A priority patent/JPH08505456A/ja
Priority to US08/436,357 priority patent/US5566722A/en
Priority to PCT/US1992/009994 priority patent/WO1994011663A1/fr
Publication of WO1994011663A1 publication Critical patent/WO1994011663A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L7/00—Supporting pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/18—Pleated or corrugated hoses
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0468—Corrugated
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/003—Tubular articles having irregular or rough surfaces
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462—Cables
    • 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
    • B29L2031/727—Fastening elements
    • B29L2031/7282—Snap fasteners, clips, press-buttons

Definitions

  • the invention relates to a corrugated protective sleeve for enclosing lengths of conducting equipment, such as cables, wiring and tubing, and more particularly, to a corrugated plastic sleeve adapted to have male and female locking members located along first and second longitudinal edges which allow the corrugated plastic sleeve to be closed upon fully inserting the male member within the corresponding female member.
  • tubular enclosures having longitudinal points of attachment
  • the tubular enclosures include sheets of material wrapped around elongated objects such as wiring, cables or other forms of tubing which are closed along the longitudinal edges to provide a sealed environment for the object or objects contained therein.
  • U.S. Patent Nos. 1,895,133 which issued to Quarnstrom on
  • the present invention provides a corrugated protective sleeve assembly made by blow molding plastic.
  • the corrugated sleeve generally comprises a single piece of corrugated plastic having a longitudinal body with alternating, enlarged and reduced diameter portions, and an inner surface and an outer surface, wherein the outer surface contains a plurality of projecting members which serve to lock the tube together about first and second longitudinal edges.
  • the corrugated sleeve of the present invention is formed by extruding a single length of relatively round plastic tubing between a plurality of first and second moving mold plates arranged along a linear path and adjoining the mold plates for a specific amount of time.
  • a longitudinal cavity having sections of successive enlarged and reduced diameter is provided when the first and second mold plates are adjoined along their mating faces.
  • the first plurality of mold plates are provided with a male locking portion located below the level of the mold plates face that contacts a second plurality of mold plates.
  • the second mold plates include a portion of mold cavities which contain a plurality of female mating lug and recess portions, respectively, disposed perpendicularly to the second plate's face.
  • the plastic tubing is then blow molded such that the plastic flows within the mold plates and becomes contoured according to the dimensions of the mold plates.
  • the enlarged and reduced diameter portions are formed and the male and female parts of the locking portions become filled by displaced plastic to form the outward projections contained on the outer surface of the corrugated sleeve.
  • the corrugated protective sleeve is adapted to have first and second longitudinal edges by slitting the corrugated plastic sleeve along a longitudinal line which is substantially parallel to the tubes central axis.
  • the protective sleeve is made of a relatively deformable plastic which allows for deformation of the corrugated sleeve without damaging the contents contained within the sleeve.
  • a plurality of the corrugated sections contain outwardly projecting tab members which are referred to herein as male locking members.
  • Female locking members extend outwardly from the body portion and are formed upon slitting the sleeve along the longitudinal axis.
  • a corresponding number of the female locking members are provided with a detent or aperture into which the tab portions of the corresponding male locking member projects to reduce the likelihood of an undesired disconnection between the male and female locking members.
  • Fig. 1 is a perspective view of a first embodiment of a corrugated sleeve of the present invention shown exiting a first set of molding plates used to form a corrugated sleeve;
  • Fig. 2 is a partial cross-sectional view demonstrating the formation of the first embodiment of a corrugated sleeve within the molding plates;
  • Fig. 3 is a perspective view demonstrating the corrugated tube produced by the molding plates of Figure 1 ;
  • Fig. 4 is a perspective view demonstrating the formation of spaces on the reduced diameter portions along a longitudinal line
  • Fig. 5 is a partial cross-sectional view of the corrugated tube of Figures 3 and 4;
  • Fig. 6 is a partial cross-sectional view demonstrating the insertion of a male locking member into the corresponding female locking member;
  • Fig. 7 is a partial cross-sectional view demonstrating the sealing together of the male and female locking portions
  • the corrugated sleeve 10 of the present invention is formed by positioning a single length of relatively round plastic tubing between a plurality of first and second mold plates, 50 and 50', respectively, arranged along a linear path and adjoining the mold plates for a specific amount of time. Since the first and second mold plates of the present have numerous similar features, like reference numerals will be employed to describe like features.
  • the mold plates are typically rectangular in shape having relatively flat first and second ends 54, 56, 54' and 56'.
  • the first plurality of mold plates 50 are provided with a ledge portion 64 located below and substantially parallel to the level of the face 58 on each of the enlarged diameter sections 60. Disposed perpendicularly between the first plate's face 58 and the ledge portion 64 are a plurality of lugs 66 of plate 50 and recesses 68' of plate 50'.
  • the second mold plates 50' include a plurality of mating lug and recess portions 66' and 68', respectively, disposed relatively perpendicular to the second plate's face 58'.
  • Gaps 72' are provided along the enlarged diameter sections 60 and 60' between the corresponding lugs and recesses of the first and second mold plates upon adjoining the corresponding first and second plates.
  • the first mold plates 50 further include downwardly extending members 66 which extend to meet plate 50' and form the gaps 72'.
  • each enlarged diameter section be provided with an outwardly projecting tab member and a corresponding female outward projection, it will be understood that both the enlarged and reduced diameter sections could be provided with an outwardly projecting tab member and corresponding female outward projection.
  • the outward projecting tab may be formed with a detenting area 72'.
  • the reduced diameter portions 62 and 62' of the mold plates 50 and 50' provide the reduced diameter portions 18 of the tube with open spaces 24.
  • these open spaces 24 are cut into the corrugated tube
  • plastic sleeve 10 after the tube has been blow molded and a special cutting tool 74 has been used to remove material from the tube 10.
  • a portion of plastic sleeve 10 is shown in Figure 5.
  • the corrugated plastic sleeve 10 is slit along a longitudinal line 40 by a slitting tool 78 to form first and second longitudinal edges 32 and 44, respectively.
  • the female locking members 26 are provided with a gap 24 and an aperture 30 to accommodate the projecting tabs 34 of the male locking members.
  • the apertures 30 are formed by the cutting tool 78.
  • additional sealing 84 can be accomplished by plastic welded to the outer surface of the male locking member.
  • the tab members can also be plastic welded to the outwardly projecting portions to further secure the male and female locking members together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

La présente invention se rapporte à des manchons protecteurs ondulés (10) destinés à renfermer des longueurs d'équipements conducteurs tels que des câbles, des conducteurs électriques et des tubes, et plus particulièrement à des manchons ondulés (10) formés d'une seule pièce de matière plastique. Le manchon protecteur ondulé comporte une surface interne (14) et une surface externe (20) qui est fendue afin de former des éléments de blocage mâles (36) et femelles (26) qui sont contigus une fois que l'équipement conducteur a été inséré dans le manchon. Divers procédés pour former les zones de blocage faisant partie du tube ondulé sont également présentés.
PCT/US1992/009994 1992-11-17 1992-11-17 Tube ondule fendu auto-bloquant Ceased WO1994011663A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR9207176A BR9207176A (pt) 1992-11-17 1992-11-17 Tubulação corrugada fendida de travamento automático
EP93900561A EP0670019A4 (fr) 1992-11-17 1992-11-17 Tube ondule fendu auto-bloquant.
JP6512038A JPH08505456A (ja) 1992-11-17 1992-11-17 自己ロック式スリット付き波形管材
US08/436,357 US5566722A (en) 1992-11-17 1992-11-17 Self locking slitted corrugated tubing
PCT/US1992/009994 WO1994011663A1 (fr) 1992-11-17 1992-11-17 Tube ondule fendu auto-bloquant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR9207176A BR9207176A (pt) 1992-11-17 1992-11-17 Tubulação corrugada fendida de travamento automático
PCT/US1992/009994 WO1994011663A1 (fr) 1992-11-17 1992-11-17 Tube ondule fendu auto-bloquant

Publications (1)

Publication Number Publication Date
WO1994011663A1 true WO1994011663A1 (fr) 1994-05-26

Family

ID=25664554

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/009994 Ceased WO1994011663A1 (fr) 1992-11-17 1992-11-17 Tube ondule fendu auto-bloquant

Country Status (2)

Country Link
BR (1) BR9207176A (fr)
WO (1) WO1994011663A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853361A1 (fr) 1997-01-14 1998-07-15 Hegler, Ralph-Peter, Dr.-Ing. Tube annelé de protection en une pièce et dispositif de fabrication
EP0859440A1 (fr) * 1997-02-14 1998-08-19 FRÄNKISCHE ROHRWERKE, GEBR. KIRCHNER GmbH & Co. Tuyau ondulé en plastique avec une fente longitudinale ouverte
EP0860921A1 (fr) * 1997-02-21 1998-08-26 Sumitomo Wiring Systems, Ltd. Tube ondulé
DE19904977A1 (de) * 1999-02-06 2000-08-10 Ralph Peter Hegler Verfahren zur Herstellung eines einteiligen Hüll-Wellrohres aus thermoplastischem Kunststoff und Verfahren zum Einlegen mindestens einer elektrischen Leitung in ein solches Hüll-Wellrohr
DE102014108757A1 (de) 2014-06-23 2015-12-24 Schlemmer Gmbh Wellrohr aus Kunststoff zum Ummanteln von Leitungen sowie Verfahren zur Herstellung eines solchen Wellrohres
EP3815874A1 (fr) * 2019-11-04 2021-05-05 Voss Automotive GmbH Procédé de fabrication d'un tuyau doté d'un point de raccordement
EP4027470A1 (fr) * 2021-01-07 2022-07-13 Yazaki Corporation Élément de protection en tube ondulé

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208478A (en) * 1962-03-30 1965-09-28 Alec Sabin Baines Plastic drainage tube
US3336950A (en) * 1964-05-19 1967-08-22 Continental Oil Co Culvert construction
US3747352A (en) * 1972-06-12 1973-07-24 Plastic Tubing Corrugated drainage pipe with plateaus defining recesses
US3859025A (en) * 1972-07-13 1975-01-07 Ernest J Maroschak Apparatus for making corrugated plastic pipes with integral coupler collar
US3870774A (en) * 1972-08-04 1975-03-11 Ernest J Maroschak Pipe doffing and bundling method
US4037626A (en) * 1975-09-15 1977-07-26 Standard Oil Company (Indiana) High strength composite pipe structure having leakproof joints
US4214147A (en) * 1978-06-19 1980-07-22 Kraver Richard A Electric heating system for controlling temperature of pipes to prevent freezing and condensation
US4509911A (en) * 1982-03-11 1985-04-09 Hancor, Inc. Coupling structure and method and apparatus for its manufacture
US4667702A (en) * 1986-08-22 1987-05-26 Intertherm Inc. Trim-to-length duct
US4766662A (en) * 1984-08-15 1988-08-30 Dayco Products, Inc. Method of protecting hose with a plastic abrasion-resistant protective sleeve
US4789322A (en) * 1987-11-23 1988-12-06 Harry Chan Corrugator with intermeshing overlapping moldblock halves
US4838318A (en) * 1987-01-20 1989-06-13 Yamato Kogyo Kabushiki Kaisha Elbow cover for an elbow in pipework
US4877224A (en) * 1988-08-31 1989-10-31 Watts James L Corrugated energy absorber
US5059109A (en) * 1989-12-26 1991-10-22 Cullom Machine Tool & Die, Inc. Corrugated mold block

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208478A (en) * 1962-03-30 1965-09-28 Alec Sabin Baines Plastic drainage tube
US3336950A (en) * 1964-05-19 1967-08-22 Continental Oil Co Culvert construction
US3747352A (en) * 1972-06-12 1973-07-24 Plastic Tubing Corrugated drainage pipe with plateaus defining recesses
US3859025A (en) * 1972-07-13 1975-01-07 Ernest J Maroschak Apparatus for making corrugated plastic pipes with integral coupler collar
US3870774A (en) * 1972-08-04 1975-03-11 Ernest J Maroschak Pipe doffing and bundling method
US4037626A (en) * 1975-09-15 1977-07-26 Standard Oil Company (Indiana) High strength composite pipe structure having leakproof joints
US4214147A (en) * 1978-06-19 1980-07-22 Kraver Richard A Electric heating system for controlling temperature of pipes to prevent freezing and condensation
US4509911A (en) * 1982-03-11 1985-04-09 Hancor, Inc. Coupling structure and method and apparatus for its manufacture
US4766662A (en) * 1984-08-15 1988-08-30 Dayco Products, Inc. Method of protecting hose with a plastic abrasion-resistant protective sleeve
US4667702A (en) * 1986-08-22 1987-05-26 Intertherm Inc. Trim-to-length duct
US4838318A (en) * 1987-01-20 1989-06-13 Yamato Kogyo Kabushiki Kaisha Elbow cover for an elbow in pipework
US4789322A (en) * 1987-11-23 1988-12-06 Harry Chan Corrugator with intermeshing overlapping moldblock halves
US4877224A (en) * 1988-08-31 1989-10-31 Watts James L Corrugated energy absorber
US5059109A (en) * 1989-12-26 1991-10-22 Cullom Machine Tool & Die, Inc. Corrugated mold block

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853361A1 (fr) 1997-01-14 1998-07-15 Hegler, Ralph-Peter, Dr.-Ing. Tube annelé de protection en une pièce et dispositif de fabrication
EP0859440A1 (fr) * 1997-02-14 1998-08-19 FRÄNKISCHE ROHRWERKE, GEBR. KIRCHNER GmbH & Co. Tuyau ondulé en plastique avec une fente longitudinale ouverte
EP0860921A1 (fr) * 1997-02-21 1998-08-26 Sumitomo Wiring Systems, Ltd. Tube ondulé
DE19904977A1 (de) * 1999-02-06 2000-08-10 Ralph Peter Hegler Verfahren zur Herstellung eines einteiligen Hüll-Wellrohres aus thermoplastischem Kunststoff und Verfahren zum Einlegen mindestens einer elektrischen Leitung in ein solches Hüll-Wellrohr
WO2000046894A1 (fr) * 1999-02-06 2000-08-10 Bayerische Motoren Werke Aktiengesellschaft Procede pour produire un tube de gainage ondule d'une seule piece
DE102014108757A1 (de) 2014-06-23 2015-12-24 Schlemmer Gmbh Wellrohr aus Kunststoff zum Ummanteln von Leitungen sowie Verfahren zur Herstellung eines solchen Wellrohres
US10199811B2 (en) 2014-06-23 2019-02-05 Schlemmer Gmbh Plastic corrugated tube for surrounding pipes and method for producing such a corrugated tube
EP3815874A1 (fr) * 2019-11-04 2021-05-05 Voss Automotive GmbH Procédé de fabrication d'un tuyau doté d'un point de raccordement
EP4027470A1 (fr) * 2021-01-07 2022-07-13 Yazaki Corporation Élément de protection en tube ondulé

Also Published As

Publication number Publication date
BR9207176A (pt) 1995-12-19

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