WO1998012783A1 - Piece de raccord et de derivation pour tubes anneles - Google Patents
Piece de raccord et de derivation pour tubes anneles Download PDFInfo
- Publication number
- WO1998012783A1 WO1998012783A1 PCT/IB1997/000416 IB9700416W WO9812783A1 WO 1998012783 A1 WO1998012783 A1 WO 1998012783A1 IB 9700416 W IB9700416 W IB 9700416W WO 9812783 A1 WO9812783 A1 WO 9812783A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grooves
- sleeve
- tubes
- connection
- tube
- Prior art date
Links
Classifications
-
- 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
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
-
- 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
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0616—Joints for connecting tubing to casing
- H02G3/0691—Fixing tubing to casing by auxiliary means co-operating with indentations of the tubing, e.g. with tubing-convolutions
Definitions
- the present invention relates to connecting and branching parts making it possible to connect several corrugated tubes together and / or to fix them against a wall.
- Corrugated tubes that is to say those whose shape resembles a succession of rings connected to each other, are usually made of plastic material such as extruded polypropylene. These tubes allow the production of complex networks of protective sheaths for bundles of electric wires or cables within a building, an airplane or an automobile, and in particular in the engine compartment. Indeed, given the small space available, these sheaths or pipes must be able to follow very closely the non-rectilinear walls and bypass the various bodies encountered. With such tubes, it is precisely possible to produce curves whose radius of curvature is less than twice their diameter without the latter deforming inward or even breaking.
- connection, bypass and or fixing parts that take advantage of the ringed appearance of these tubes to ensure longitudinal locking.
- plastic parts in the general form of a tubular sleeve or a T formed by the intersection of a secondary tube orthogonally in the middle of a first base tube or sleeve.
- Other similar parts are known, for example in Y or formed by the intersection of several secondary tubes forming as many starting points for branch branches, possibly of different diameters, orthogonally or obliquely with the base sleeve.
- the section of the sleeve and of the secondary tubes is most often circular, but can also be rectangular, if desired with rounded corners, the end faces then having circular openings to receive the ends of corrugated tubes.
- Such parts usually open in two shells according to a plane containing all the tubes, either one constituting a housing the other a cover, or in two shells substantially symmetrical with respect to a median plane.
- These two shells are connected along a straight longitudinal edge of the base sleeve by means of a hinge, for example in the form of one or more bridges of material.
- the ends of these shells therefore have semi-circular notches in correspondence defining, once the shells are closed, the circular openings for corrugated tubes.
- the opening of the part therefore makes it possible to insert and position the ringed tube (s) in one of the shells, the other shell then being closed and locked using hooks which engage in loops or windows respectively arranged in correspondence along the edge opposite to that of the hinge and / or on the lateral edges.
- the object of the present invention is a connecting and branching piece for a network node of corrugated tubes of which at least one of the branches can take any orientation according to a small radius of curvature.
- a connecting and branching piece for a network node of corrugated tubes of which at least one of the branches can take any orientation according to a small radius of curvature As previously, such a part must however remain simple and obvious to use for connecting several tubes together, while guaranteeing mechanical protection and effective sealing against aggressive agents from the ambient environment. The design of this part must, moreover, also be simple enough to allow mass production at low cost.
- a connecting and branching part which is in the form of a base sleeve intersected on one side by one or more secondary bypass tubes, this part opening in two shells according to a plane containing the sleeve and the secondary tubes, and connected by a hinge in a rectilinear part on the opposite opposite side of the sleeve, because at least one of the secondary tubes has one or more grooves at its intersection with the sleeve base, and / or the fact that the sleeve has one or more grooves between one of its ends and the intersection of the adjacent secondary tube.
- a fluted secondary bypass tube has a groove with a diameter greater than that of the sleeve or of the tube.
- a secondary tube has between two and twelve grooves, preferably between six and eight, of diameter substantially identical to that of the sleeve or the tube.
- the branch branch can deviate quickly, in any direction and at a greater or lesser angle relative to the axis of initial connection with the sleeve.
- the grooves of a secondary tube are produced by two groups of half-grooves belonging respectively to the first and to the second shell, and coming to be superposed one above the other during the closing of the room, the sum of the angles at vertex of the first and second group being greater than 360 degrees, the internal radius of one of the groups being slightly greater than the external radius of the other.
- the determination of the angles at the vertices means that the edges of one of the half-groove groups overlaps the edges of the other group when the shells are closed, this overlap elegantly ensuring that this zone is sealed. grooved intersection with respect to humidity and dust. This overlapping is carried out without difficulty during the positioning of the part, but, as a baffle, proves to be very effective.
- the production of a part according to the invention can also be done by injection of plastic material under pressure into a mold in a similar manner to the previous parts, the shape of the mold is certainly modified in an elaborate manner at the intersection to reveal these half-grooves. Mass production at reasonable cost therefore remains possible. In addition, this overlap hardly alters the desired flexibility of this intersection zone.
- the transverse shape of the half-grooves of smaller radius is periodic of regular shape, while the transverse shape of the other half-grooves is of identical shape and period but with internal ridges of narrowed width and external ridges enlarged.
- These particular transverse shapes ensure good overlap which is easy to install half-grooves of large radius over the half-grooves of smaller radius.
- the angle at the top of each of the groups of half-grooves is between 220 degrees and 290 degrees, preferably of the order of
- the rectilinear edges of the shell parts forming the base sleeve have some of the elongated studs, the other of the corresponding grooves, these studs and grooves forming between them complementary sealing baffles against humidity and dust for the muff.
- the connection ends of the sleeve and of the secondary tubes at their respective ends of corrugated tubes have, on one of the shells, from the outside to the inside, a front clip followed by two side windows followed by two side grooves , and in correspondence on the other shell, a clip notch, followed by two lateral hooks followed by two longilinear tenons, or vice versa, the hooks or the tenons belonging to the shell of the clip.
- FIG. 1 is a side view of a connecting piece according to the invention in the closed state
- - Figure 2 is a top view of the piece of Figure 1 in the open state showing the inside of the two shells
- Figure 3 is a side view of the open part of Figure 2.
- the connecting and branching piece for corrugated tubes is presented, in the open state, according to two shells 13 and 14 each in the shape of a T, and connected together by a hinge 5 constituted by a bridge of material integral with each of the rectilinear edges of the upper part of the transverse bar of the T.
- this connecting piece 1 is then presented in the form of a base sleeve 2 can join end to end two annular tubes in their extension, this base sleeve being intersected orthogonally, substantially in the middle, by a secondary tube 4 connecting to a third annular bypass tube.
- This part is preferably made of thermoplastic material by injection into a mold.
- connection ends 30, 31 The three open ends, at each end of the T, have complementary identical connection ends 30, 31.
- the first connection part 30 begins with a clip 32 in the form of an arc of an angle at the top of the order of 270 degrees, that is to say making about three-quarters of a circle.
- This connecting part 30 then continues through two windows 34 each formed in the side walls. Behind these windows is made a rib 38 on the internal face of the shell 14, this rib being parallel to the opening formed by the clip 32, therefore transverse with respect to the axis of the end of the tube ringed between two grooves from which it is brought to stay there.
- the shell has two grooves 36 formed in its edge.
- the other connecting portion 31 first has a front notch 33 intended to receive the clip 32. Behind this notch are shaped, on either side, two hooks 35 respectively in correspondence with the windows 34. Finally , slightly behind these hooks, are provided elongate tenons 37 in correspondence with the grooves 36.
- the tenons 17 and grooves 16 may be longer, by a part to cover the area of the hinge 5, on the other hand possibly at a right angle to cover the start of the secondary tube 4.
- the secondary tube 4 is not directly connected to the base sleeve 2, but has intermediate grooves 20.
- the grooves 20 are produced in two groups of half-grooves 22, 23 belonging in correspondence to the shells 14 and 13 respectively.
- the first group of half-grooves 22 therefore connects the middle of the transverse part of the first shell 14 to the connection end part 30 of the ringed bypass tube 4; while the second group of half-grooves 23 connects the transverse part of the second shell 13 to the second connection end part 31.
- the opening plane of the shells 13 and 14 is situated substantially at the level of the median plane F of the part 1 passing through the base sleeve 2 and the secondary tube 4, therefore at the level of the hinge 5.
- These two groups of half-grooves each have seven rings (or bellows) in correspondence, this number can vary between two to twelve depending on the flexibility desired in this part.
- the angle at the top of these half-grooves is not limited to 180 degrees, which would mean that they would only join edge-to-edge at the opening plane, but their apex angle A is at least greater than 220 degrees, preferably 270 degrees.
- the internal radius R1 of the half-grooves 23 is slightly greater than the external radius R2 of the half-grooves 22, and the transverse shape of the half-grooves 22 is substantially regular sinusoidal, while the transverse shape of the other half-grooves 23 is sinusoidal with the same frequency and amplitude, but irregular in shape, i.e. with narrowed internal ridges and enlarged external ridges.
- the part according to the invention is manufactured, in the open state as illustrated in FIGS. 2 and 3, by injection of plastic material under pressure into a mold in two parts whose closing planes correspond substantially to the median plane F of the figure 3, that is to say at the level of the hinge 5. Then, the four edges of half-grooves provided for overlapping each other are rather rectilinear over their height H to facilitate demolding and then their mutual engagement during closing the room 1.
- the operator begins by installing the three ends of corrugated tubes to be connected in each of the connector ends 30 of the shell 14. To this end, he takes advantage of the clips 32 and the internal ribs 38 to temporarily hold these tubes in place. Once these tubes are preinstalled, the operator simply folds the second shell 13 over the first 14 and locks the connecting piece by engaging the three pairs of hooks 35 in their respective window 34. In doing so, the group of half-grooves 23 is directly positioned over the group 22, each of the bellows of group 23 coming to cover the edges of the corresponding bellows of group 22. In addition, the elongated tenons 17.37 engage in their respective grooves 16.36.
- the branch branch being held by the connector end part
- connection box allows to apply to a branch branch a large angle of departure relative to the axis normally orthogonal to that of the base sleeve 2, and this without risking sagging of your protective sheath at this intersection and while preserving an effective moisture and dust tightness.
- the invention is in no way strictly limited to the example illustrated, but encompasses variants such as, for example, parts having several secondary connecting tubes 4 side by side, some even oblique inside. of the opening plane, the diameters of each of the secondary tubes may be different.
- the cross section of the base sleeve 12 can also be rectangular with rounded corners, the end faces then having semicircular notches arranged similarly to the connecting parts 30, 31 of the shells 13 and 14 illustrated on the Figures 2 and 3.
- Such a part can also be produced either by molding a metal having a certain malleability, or by placing fiber textiles impregnated with resin on a form, the resin then being hardened.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Prostheses (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU23044/97A AU2304497A (en) | 1996-09-23 | 1997-04-18 | Connecting and branching piece for ringed tubes |
JP09537485A JP2001501075A (ja) | 1996-09-23 | 1997-04-18 | 環状管のための接続用及び分岐用部品 |
EP97915637A EP0927446A1 (fr) | 1996-09-23 | 1997-04-18 | Piece de raccord et de derivation pour tubes anneles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR96/11763 | 1996-09-23 | ||
FR9611763A FR2753843B1 (fr) | 1996-09-23 | 1996-09-23 | Piece de raccord et de derivation pour tubes anneles |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998012783A1 true WO1998012783A1 (fr) | 1998-03-26 |
Family
ID=9496102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1997/000416 WO1998012783A1 (fr) | 1996-09-23 | 1997-04-18 | Piece de raccord et de derivation pour tubes anneles |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0927446A1 (fr) |
JP (1) | JP2001501075A (fr) |
AR (1) | AR009808A1 (fr) |
AU (1) | AU2304497A (fr) |
FR (1) | FR2753843B1 (fr) |
TR (1) | TR199900637T2 (fr) |
WO (1) | WO1998012783A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103527585A (zh) * | 2013-09-26 | 2014-01-22 | 中国船舶重工集团公司第七一〇研究所 | 伸缩杆保护装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2779876B1 (fr) * | 1998-06-12 | 2000-08-25 | Legrand Sa | Accessoire de derivation pour installation electrique, et installation electrique correspondante |
ITMI20111690A1 (it) * | 2011-09-20 | 2013-03-21 | Gewiss Spa | Dispositivo di raccordo, particolarmente per tubazioni per cablaggi elettrici |
CN108039229B (zh) * | 2017-12-07 | 2019-09-03 | 浙江海洋大学 | 一种架空电缆的临时连接*** |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3711633A (en) * | 1971-12-02 | 1973-01-16 | Gen Motors Corp | Fitting means for axially slit corrugated conduits |
FR2355387A1 (fr) * | 1976-06-16 | 1978-01-13 | Mercieca Sa | Raccord charniere pour tubes d'installation electrique |
US4443031A (en) * | 1982-11-04 | 1984-04-17 | Thyssen-Bornemisza Inc. | Connector fitting for connecting corrugated conduit sections |
US4986575A (en) * | 1986-11-25 | 1991-01-22 | Frankische Rohrwerk Gebr. Kirchner Gmbh & Co. | Plastic protective tube arrangement for lines |
-
1996
- 1996-09-23 FR FR9611763A patent/FR2753843B1/fr not_active Expired - Fee Related
-
1997
- 1997-04-18 AU AU23044/97A patent/AU2304497A/en not_active Abandoned
- 1997-04-18 EP EP97915637A patent/EP0927446A1/fr not_active Withdrawn
- 1997-04-18 WO PCT/IB1997/000416 patent/WO1998012783A1/fr not_active Application Discontinuation
- 1997-04-18 TR TR1999/00637T patent/TR199900637T2/xx unknown
- 1997-04-18 JP JP09537485A patent/JP2001501075A/ja active Pending
- 1997-09-23 AR ARP970104372 patent/AR009808A1/es unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3711633A (en) * | 1971-12-02 | 1973-01-16 | Gen Motors Corp | Fitting means for axially slit corrugated conduits |
FR2355387A1 (fr) * | 1976-06-16 | 1978-01-13 | Mercieca Sa | Raccord charniere pour tubes d'installation electrique |
US4443031A (en) * | 1982-11-04 | 1984-04-17 | Thyssen-Bornemisza Inc. | Connector fitting for connecting corrugated conduit sections |
US4986575A (en) * | 1986-11-25 | 1991-01-22 | Frankische Rohrwerk Gebr. Kirchner Gmbh & Co. | Plastic protective tube arrangement for lines |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103527585A (zh) * | 2013-09-26 | 2014-01-22 | 中国船舶重工集团公司第七一〇研究所 | 伸缩杆保护装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2304497A (en) | 1998-04-14 |
AR009808A1 (es) | 2000-05-03 |
FR2753843A1 (fr) | 1998-03-27 |
JP2001501075A (ja) | 2001-01-23 |
TR199900637T2 (xx) | 1999-07-21 |
EP0927446A1 (fr) | 1999-07-07 |
FR2753843B1 (fr) | 1998-12-18 |
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