WO2007075141A1 - Retainer - Google Patents

Retainer Download PDF

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Publication number
WO2007075141A1
WO2007075141A1 PCT/SE2006/050578 SE2006050578W WO2007075141A1 WO 2007075141 A1 WO2007075141 A1 WO 2007075141A1 SE 2006050578 W SE2006050578 W SE 2006050578W WO 2007075141 A1 WO2007075141 A1 WO 2007075141A1
Authority
WO
WIPO (PCT)
Prior art keywords
retainer
parts
recesses
retainer parts
lines
Prior art date
Application number
PCT/SE2006/050578
Other languages
French (fr)
Inventor
Sören Lundberg
Original Assignee
Scania Cv Ab (Publ)
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 Scania Cv Ab (Publ) filed Critical Scania Cv Ab (Publ)
Priority to DE112006003581T priority Critical patent/DE112006003581T5/en
Publication of WO2007075141A1 publication Critical patent/WO2007075141A1/en

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
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
    • 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
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
    • F16L3/223—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals each support having one transverse base for supporting the pipes
    • F16L3/2235—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals each support having one transverse base for supporting the pipes each pipe being supported by a common element fastened to the base
    • 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
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
    • F16L3/237—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for two pipes

Definitions

  • the invention relates to a retainer according to the preamble of the attached claim 1.
  • each retainer part comprises a steel plate bent round a rubber lining which has recesses for lines. That retainer also needs a steel sheath as a stop between the retainer parts to prevent the retainer parts from becoming deformed by large tightening torques.
  • the steel sheath occupies space, with the result that the retainer needs unnecessarily large dimensions unless the fastening element/screw is under-dimensioned.
  • the fact that the retainer comprises at least five parts makes it expensive to manufacture. It is also relatively heavy.
  • a further disadvantage of such a retainer is that the upper retainer part risks being rotated during the tightening of the fastening element, with the result that the lines may become damaged, particularly if they are made of plastic, as in the case of, for example, fuel lines made of polyamide.
  • An object of the invention is to provide a retainer of the kind mentioned in the introduction whereby the disadvantages of the state of the art indicated above can be avoided.
  • the retainer parts comprise mutually engaging, complementarily profiled surface portions between the recesses to prevent mutual rotation of the retainer parts when they are being clamped together.
  • the fact that the retainer parts are of mutually identical cross-sectional shape makes it possible, with advantage, for them to be manufactured in the same moulding tool, e.g. by an extrusion process, thereby lowering the production cost.
  • the profile height of the profiled surface portions will then be such that the retainer cannot clamp the lines when one of the retainer parts is rotated 180 degrees about said axis from a correct fitting position relative to the other retainer part.
  • the surface portions slope relative to a centreline of the aperture, which slope makes it easier for the retainer parts to be put together in a correct assembly position.
  • FIG. 1 is a perspective view with cut-away portions of a retainer according to the invention firmly holding a pair of pipelines close to a mounting surface;
  • FIG. 2 is an end view of a retainer according to FIG. 1 ;
  • FIG. 3 is an end view of a retainer part according to the invention.
  • FIG. 4 is a view obliquely from above the retainer part in FIG. 3;
  • FIG. 5 is a view corresponding to FIG. 4 with a modified retainer part according to the invention.
  • FIG. 6 is a view showing the retainer part in a pre-assembly position.
  • FIG. 1 depicts a retainer 10 according to the invention firmly holding a pair of pipelines 40, 40, such as fuel lines, close to a mounting surface 52 of a schematically represented engine part 50 of an undepicted motor vehicle.
  • the retainer 10 comprises two retainer parts 12, 12/12' of mutually identical cross- sectional shape.
  • the retainer parts 12, 12' may therefore be produced using a single moulding tool, e.g. by aluminium extrusion.
  • the retainer parts 12, 12' are gently rounded outside and each have inside a pair of recesses 14, 16 arranged at mutual spacing (FIGS. 3 and 4) to accommodate the pipelines 40. Between the recesses 14, 16, each retainer part 12, 12' has running through it a hole 18 for a fastening element such as a screw 30 for clamping the retainer parts together round the pipelines 40.
  • the two retainer parts 12, 12 fully correspond to one another to allow the retainer 10 to be fastened by the threaded portion 32 of the screw 30 in a threaded hole 54 in the mounting surface 52.
  • the hole 18 in the lower retainer part 12' is also provided with an internal thread 22 to make it possible for the retainer parts to be held together solely by a screw 30 with a shorter threaded portion 32'. With a retainer assembled in this manner, the two lines will stiffen one another in the resulting twin line (not depicted).
  • each retainer part 12, 12' between the recesses 14, 16 has profiled surface portions 24, 26, 28 which are mutually complementary between the retainer parts 12, 12/12' so that they will abut against one another in the assembled state of the retainer. More specifically, a central surface portion 28 of the surface portions 24, 26, 28 constitutes a locking surface which prevents mutual rotation between the retainer parts 12 and 12/12' in the correctly assembled state according to FIGS. 1 and 2.
  • the central surface portion 28 slopes at an angle v with respect to a centreline 20 of the hole 18 to make it easier to put the retainer parts together in the correct assembly position. If the retainer parts before assembly are turned at an angle to one another, e.g. 180 degrees, away from the correct position, they will abut on one another via the surface portions 24. The retainer 10 will then be too high - the height h means the height of the surface 28 - and will not be able to clamp the lines, a fact which a fitter will immediately sense with the fingers even if the retainer is hidden from view.
  • the fitter will rotate the upper retainer part 12 in either direction about the screw 30 until the contact between the surfaces 24, 24 ceases and the surfaces 28, 28 begin to come into contact with one another at approximately the position according to FIG. 6 so that the retainer parts 12, 12/12' slide together along the surfaces 28, 28, which will guide the retainer parts to, and lock them in, the correct assembly position when the screw 30 is finally tightened.
  • the lines take the form of fuel lines, but the invention may be applied with advantage to all types of lines, e.g. other kinds of pipelines, and to electrical lines.
  • the example described refers to two lines but the invention may also be applied where a different number of lines are to be fastened, and the two lines indicated are mainly intended to be regarded as a suitable minimum number of lines.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)
  • Clamps And Clips (AREA)

Abstract

A retainer for a pair of parallel lines arranged at mutual spacing, comprising a pair of mutually opposite retainer parts (12) each having a pair of recesses for the lines and a 5 hole between the recesses for a threaded fastening element (30) for clamping the retainer parts together and holding the lines firmly in the recesses. The retainer parts (12) have mutually engaging, complementarily profiled surface portions (28) between the recesses (14, 16) to prevent mutual rotation of the retainer parts (12) when they are being clamped together.

Description

RETAINER
TECHNICAL FIELD
The invention relates to a retainer according to the preamble of the attached claim 1.
BACKGROUND
In a known such retainer, each retainer part comprises a steel plate bent round a rubber lining which has recesses for lines. That retainer also needs a steel sheath as a stop between the retainer parts to prevent the retainer parts from becoming deformed by large tightening torques. The steel sheath occupies space, with the result that the retainer needs unnecessarily large dimensions unless the fastening element/screw is under-dimensioned. The fact that the retainer comprises at least five parts makes it expensive to manufacture. It is also relatively heavy. A further disadvantage of such a retainer is that the upper retainer part risks being rotated during the tightening of the fastening element, with the result that the lines may become damaged, particularly if they are made of plastic, as in the case of, for example, fuel lines made of polyamide.
SUMMARY OF THE INVENTION
An object of the invention is to provide a retainer of the kind mentioned in the introduction whereby the disadvantages of the state of the art indicated above can be avoided.
This is achieved by the features indicated in the attached claims.
According to the invention, the retainer parts comprise mutually engaging, complementarily profiled surface portions between the recesses to prevent mutual rotation of the retainer parts when they are being clamped together. The fact that the retainer parts are of mutually identical cross-sectional shape makes it possible, with advantage, for them to be manufactured in the same moulding tool, e.g. by an extrusion process, thereby lowering the production cost.
With advantage, the profile height of the profiled surface portions will then be such that the retainer cannot clamp the lines when one of the retainer parts is rotated 180 degrees about said axis from a correct fitting position relative to the other retainer part.
With advantage, the surface portions slope relative to a centreline of the aperture, which slope makes it easier for the retainer parts to be put together in a correct assembly position.
Other features and advantages of the invention are indicated by the following detailed description and claims.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view with cut-away portions of a retainer according to the invention firmly holding a pair of pipelines close to a mounting surface; FIG. 2 is an end view of a retainer according to FIG. 1 ;
FIG. 3 is an end view of a retainer part according to the invention;
FIG. 4 is a view obliquely from above the retainer part in FIG. 3;
FIG. 5 is a view corresponding to FIG. 4 with a modified retainer part according to the invention; and FIG. 6 is a view showing the retainer part in a pre-assembly position.
DETAILED DESCRIPTION OF AN EMBODIMENT
FIG. 1 depicts a retainer 10 according to the invention firmly holding a pair of pipelines 40, 40, such as fuel lines, close to a mounting surface 52 of a schematically represented engine part 50 of an undepicted motor vehicle. The retainer 10 comprises two retainer parts 12, 12/12' of mutually identical cross- sectional shape. The retainer parts 12, 12' may therefore be produced using a single moulding tool, e.g. by aluminium extrusion. The retainer parts 12, 12' are gently rounded outside and each have inside a pair of recesses 14, 16 arranged at mutual spacing (FIGS. 3 and 4) to accommodate the pipelines 40. Between the recesses 14, 16, each retainer part 12, 12' has running through it a hole 18 for a fastening element such as a screw 30 for clamping the retainer parts together round the pipelines 40.
In the embodiment according to FIGS. 1-4, the two retainer parts 12, 12 fully correspond to one another to allow the retainer 10 to be fastened by the threaded portion 32 of the screw 30 in a threaded hole 54 in the mounting surface 52. In the embodiment according to FIGS. 5 and 6, however, the hole 18 in the lower retainer part 12' is also provided with an internal thread 22 to make it possible for the retainer parts to be held together solely by a screw 30 with a shorter threaded portion 32'. With a retainer assembled in this manner, the two lines will stiffen one another in the resulting twin line (not depicted).
According to the invention, each retainer part 12, 12' between the recesses 14, 16 has profiled surface portions 24, 26, 28 which are mutually complementary between the retainer parts 12, 12/12' so that they will abut against one another in the assembled state of the retainer. More specifically, a central surface portion 28 of the surface portions 24, 26, 28 constitutes a locking surface which prevents mutual rotation between the retainer parts 12 and 12/12' in the correctly assembled state according to FIGS. 1 and 2.
The central surface portion 28 slopes at an angle v with respect to a centreline 20 of the hole 18 to make it easier to put the retainer parts together in the correct assembly position. If the retainer parts before assembly are turned at an angle to one another, e.g. 180 degrees, away from the correct position, they will abut on one another via the surface portions 24. The retainer 10 will then be too high - the height h means the height of the surface 28 - and will not be able to clamp the lines, a fact which a fitter will immediately sense with the fingers even if the retainer is hidden from view. In that situation the fitter will rotate the upper retainer part 12 in either direction about the screw 30 until the contact between the surfaces 24, 24 ceases and the surfaces 28, 28 begin to come into contact with one another at approximately the position according to FIG. 6 so that the retainer parts 12, 12/12' slide together along the surfaces 28, 28, which will guide the retainer parts to, and lock them in, the correct assembly position when the screw 30 is finally tightened.
In the configuration depicted in FIG. 3, with an angle v of about 15 degrees, a height h of about 4 mm and a length of the clamp 10 of about 18 mm, the retainer parts will slide together at a rotational angle of approximately 10 degrees from the correct assembly position.
The description set out above is primarily intended to make the invention easier to understand and no limitations of the invention are to be inferred therefrom. The modifications which will be obvious to a specialist examining the description may be implemented without deviating from the concept of the invention or the scope of the claims set out below. In the example described, the lines take the form of fuel lines, but the invention may be applied with advantage to all types of lines, e.g. other kinds of pipelines, and to electrical lines.
The example described refers to two lines but the invention may also be applied where a different number of lines are to be fastened, and the two lines indicated are mainly intended to be regarded as a suitable minimum number of lines.

Claims

1. A retainer (10) for a pair of parallel lines arranged at mutual spacing, comprising a pair of mutually opposite retainer parts (12) each comprising a pair of recesses (14, 16) for the lines and a hole (18) between the recesses for a threaded fastening element to clamp the retainer parts together and hold the lines firmly in the recesses, the retainer parts (12) comprising mutually engaging portions between the recesses (14, 16) to prevent mutual rotation of the retainer parts (12) when they are being clamped together, characterised in that the retainer parts (12) are of mutually identical cross-sectional shape and that the portions between the recesses take the form of surface portions (28) which are complementarily profiled and constitute locking surfaces preventing mutual rotation between the retainer parts in an assembled state.
2. A retainer according to claim 1, characterised in that one of the retainer parts has a thread (22) in the hole (18).
3. A retainer according to any one of the foregoing claims, characterised in that the retainer parts (12) are made by extrusion process.
4. A retainer according to any one of the foregoing claims, characterised in that the profile height (h) of the profiled surface portions is such that the retainer cannot clamp the lines when one of the retainer parts (12) is turned 180 degrees about a centreline (20) of the hole from a correct assembly position relative to the other retainer part (12, 12').
5. A retainer according to any one of the foregoing claims, characterised in that the surface portions (28) exhibit with respect to a centreline (20) of the hole (18) a slope (v) which makes it easier to put the retainer parts (12) together in a correct assembly position.
PCT/SE2006/050578 2005-12-29 2006-12-13 Retainer WO2007075141A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006003581T DE112006003581T5 (en) 2005-12-29 2006-12-13 bracket

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0502923-6 2005-12-29
SE0502923A SE528667C2 (en) 2005-12-29 2005-12-29 Holder is for reciprocally spaced pair of parallel conduits and comprises pair of counterposed holder parts, each with a pair of recesses for conduits and a drilled hole for a threaded fixture component for clamping holder parts together

Publications (1)

Publication Number Publication Date
WO2007075141A1 true WO2007075141A1 (en) 2007-07-05

Family

ID=37635602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2006/050578 WO2007075141A1 (en) 2005-12-29 2006-12-13 Retainer

Country Status (3)

Country Link
DE (1) DE112006003581T5 (en)
SE (1) SE528667C2 (en)
WO (1) WO2007075141A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2974877A1 (en) * 2011-05-03 2012-11-09 Airbus Operations Sas DEVICE FOR FIXING PIPES OF AN AIRCRAFT
EP2743185A1 (en) * 2012-12-17 2014-06-18 Airbus Opérations SAS Lightning-arrester system including a lightning-arrester strip mounted off-centre
DE102013212116A1 (en) * 2013-06-25 2015-01-08 Mahle International Gmbh Turbocharger and connecting element
US20160050904A1 (en) * 2014-08-20 2016-02-25 Gary Earl TURNER, JR. Utility conduit cover
WO2019243779A1 (en) * 2018-06-19 2019-12-26 Hughes Electronics Ltd. Clamping member

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044679A (en) * 1935-05-16 1936-06-16 Monitor Controller Co Connecter for electric conductors
US3515398A (en) * 1968-02-07 1970-06-02 Elliott P Thompson Gauge holder
US20020037193A1 (en) * 2000-09-27 2002-03-28 Alan Dick & Company Limited Cable clamp
EP1447605A1 (en) * 2003-02-13 2004-08-18 General Electric Company Support for tubular members

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044679A (en) * 1935-05-16 1936-06-16 Monitor Controller Co Connecter for electric conductors
US3515398A (en) * 1968-02-07 1970-06-02 Elliott P Thompson Gauge holder
US20020037193A1 (en) * 2000-09-27 2002-03-28 Alan Dick & Company Limited Cable clamp
EP1447605A1 (en) * 2003-02-13 2004-08-18 General Electric Company Support for tubular members

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2974877A1 (en) * 2011-05-03 2012-11-09 Airbus Operations Sas DEVICE FOR FIXING PIPES OF AN AIRCRAFT
EP2559619A1 (en) * 2011-05-03 2013-02-20 Airbus Operations S.A.S. Device for attaching aircraft lines
US9400066B2 (en) 2011-05-03 2016-07-26 Airbus Operations (S.A.S.) Fixture device for an aircraft tubing
EP2743185A1 (en) * 2012-12-17 2014-06-18 Airbus Opérations SAS Lightning-arrester system including a lightning-arrester strip mounted off-centre
FR2999535A1 (en) * 2012-12-17 2014-06-20 Airbus Operations Sas PARAFOUDRE SYSTEM COMPRISING A PARAFOUDRE BAND MOUNTED DESAXEE
US9036324B2 (en) 2012-12-17 2015-05-19 Airbus Operations (Sas) Lightning conductor system comprising a lightning conductor strip mounted in an offset manner
DE102013212116A1 (en) * 2013-06-25 2015-01-08 Mahle International Gmbh Turbocharger and connecting element
US20160050904A1 (en) * 2014-08-20 2016-02-25 Gary Earl TURNER, JR. Utility conduit cover
WO2019243779A1 (en) * 2018-06-19 2019-12-26 Hughes Electronics Ltd. Clamping member

Also Published As

Publication number Publication date
DE112006003581T5 (en) 2008-11-20
SE0502923L (en) 2007-01-16
SE528667C2 (en) 2007-01-16

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