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WO1999008032A1 - Collier de serrage de tuyau - Google Patents

Collier de serrage de tuyau Download PDF

Info

Publication number
WO1999008032A1
WO1999008032A1 PCT/NL1998/000446 NL9800446W WO9908032A1 WO 1999008032 A1 WO1999008032 A1 WO 1999008032A1 NL 9800446 W NL9800446 W NL 9800446W WO 9908032 A1 WO9908032 A1 WO 9908032A1
Authority
WO
WIPO (PCT)
Prior art keywords
clip
pipe
base part
segments
pivot joints
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/NL1998/000446
Other languages
English (en)
Dutch (nl)
Inventor
Jan Van Walraven
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.)
J van Walraven BV
Original Assignee
J van Walraven BV
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
Priority claimed from NL1006723A external-priority patent/NL1006723C2/nl
Priority claimed from NL1006722A external-priority patent/NL1006722C2/nl
Application filed by J van Walraven BV filed Critical J van Walraven BV
Priority to AU87519/98A priority Critical patent/AU8751998A/en
Publication of WO1999008032A1 publication Critical patent/WO1999008032A1/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
    • 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
    • F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
    • F16L3/1203—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing with a pair of arms moved automatically to closed position by overcenter spring
    • 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 members engaging the pipe, cable or protective tubing
    • F16L3/1075—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 members engaging the pipe, cable or protective tubing with two members, the two members being joined with a hinge on one side and fastened together on the other side

Definitions

  • the present invention relates to a pipe clip according to the preamble of claim 1.
  • the clip segments enclose the pipe and are hooked together by means of the hook members when a pipe is placed between the clip segments and the pipe is pressed towards the base part of the pipe clip.
  • a pipe clip in accordance with the preamble of claim 1 is described in NL-B-174 294.
  • This known pipe clip is a mass-produced product and is produced in particular as a unitary object by means of injection-moulding of a single grade of plastic material, in an injection mould of suitable shape.
  • the base part and the clip segments of a pipe clip of this nature have to be resistant to mechanical loads, so that they are usually made from a rigid plastic.
  • its pivot joints are made from the same material as the base part and the clip segments. In order to obtain the desired flexibility of the pivot joints, these pivot joints are designed as thin members and are approximately in the form of a film hinge.
  • CH 643 338 which was published later, describes a similar pipe clip in which the pivot joints are also designed as film hinges.
  • those parts of the base part which adjoin the film hinges are designed to be thin and easily bendable, so that a single size of pipe clip is suitable for various diameters of pipe.
  • the object of the present invention is to propose measures which provide an improved pipe clip.
  • the object of the present invention is to design the pivot joints of the pipe clip in such a manner that they are less fragile than in the case of the abovementioned known pipe clips.
  • a further object of the present invention is to design the pivot joints in such a way that the transmission of vibrations from the pipe which is held in the pipe clip to the support is limited.
  • the present invention provides a pipe clip according to the preamble of claim 1 which is characterized in that the pivot joints are made from a different material from the clip segments and the base part.
  • the clip segments and the foot part are made from a first type of plastic and the pivot joints, made of a different plastic, are injection-moulded on the clip segments.
  • This can be done using a generally known multi-component injection-moulding technique. It is also possible, by way of example, firstly to produce the pivot joints and then to place these components in the injection mould for the pipe clip, after which the plastic material for the remaining parts of the pipe clip are injection- moulded, which plastic material adheres to the pivot joints.
  • Fig. 1 shows a side view of a pipe clip according to the invention in the open position
  • Fig. 2 shows a side view of the pipe clip shown in Fig. 1 in the closed position
  • Fig. 3 shows a side view of a second preferred embodiment of the pipe clip according to the invention, in the open position
  • Fig. 4 shows a side view of the pipe clip shown in Fig. 3 in the closed position.
  • the single-component pipe clip 1 illustrated which is produced by two-component injection-moulding, is used to attach a cylindrical pipe 2 or the like to a support, for example a wall or a support structure.
  • the pipe clip 1 comprises a base part 3 which is designed to attach the pipe clip 1 to the support.
  • the base part 3 is provided with a recess 5 which extends between the underside 6 and the top side 7 of the base part 3, and a transverse slot 8, which extends transversely to the recess 5.
  • the transverse slot 8 is designed to accommodate a plate-like metal nut (not shown) , the threaded hole of which lies in line with the recess 5.
  • a bolt which is arranged on the wall or support structure and can be screwed into the plate-like nut, can be inserted through the recess 5.
  • the base part 3 bears, on its top side, two pivot joints 10, 11 which are situated at a distance from one another and have pivot axes which are substantially parallel to one another and in this case lie perpendicular to the plane of the drawing.
  • the pivot joints 10, 11 are solid bodies, each with two outer surfaces which run parallel to one another and parallel to the relevant pivot axis.
  • Each clip segment 13, 14 has a bearing surface 15, 16, respectively, for the pipe 2, which bearing surfaces are substantially semicircular and are directed away from the other clip segment.
  • Clip segments 13, 14 are attached to the base parts 3, via the pivot joints 10, 11, in such a manner that the clip segments 13, 14 enclose the pipe 2 when the pipe 2 is pressed between the clip segments 13, 14 towards the base part 3.
  • the clip segment 13 is provided, at its end which is remote from the base part 3, with an outwardly directed hook member 17 and that the other clip segment 14 is provided, at its end which is remote from the base part 3, with an inwardly directed hook member 18.
  • the pivot joints 10, 11 are made from a different material, in this case a different injection-mouldable plastic, from the clip segments 13, 14 and the base part 3 of the pipe clip 1.
  • a different injection-mouldable plastic from the clip segments 13, 14 and the base part 3 of the pipe clip 1.
  • the base part 3 and the clip segments 13, 14 first of all and then to place these parts in a suitable mould, after which the pivot joints are moulded on.
  • the base part 3 or the clip segments 13, 14 from a metal, for example aluminium.
  • the pivot joints 10, 11 are preferably made from rubber or an elastomeric plastic.
  • the pivot joints 10, 11 are made from a material which has a lower modulus of elasticity than the base part 3 and the clip segments 13, 14.
  • the base part 3 is used to attach the pipe clip 1 to the support and is therefore preferably made from a rigid material, for example a rigid plastic or possibly a metal, such as aluminium. Owing to the greater elasticity, it is possible to design the pivot joints 10, 11 as thicker members than in the known pipe clip, with the result that they become less fragile.
  • pivot joints 10, 11 it is preferable for the pivot joints 10, 11 to be made from a material with a higher deformation at break, in percentage terms, than the base part 3 and the clip segments 13, 14. A higher deformation at break prevents the pivot joint 10, 11 from fracturing when the clip segments 13, 14 are pivoted further than usual.
  • the pivot joints 10, 11 have a lower hardness than the base part 3 and the clip segments 13, 14. It has been found that a lower hardness of the material results in a lower transmission of vibrations.
  • the pivot joints 10, 11 have a hardness which lies between 30 and 80 Shore A.
  • the damping of vibrations achieved by the material of the pivot joints 10, 11 can be optimized by making the pivot joints 10, 11 from a material which has a higher damping action (tg delta) than the base part 3 and the clip segments 13, 14.
  • Examples of materials which are suitable for the pivot joints are injection-mouldable plastic materials, such as EPDM or a mix of EPDM and PP.
  • the base part and the clip segments may, for example, be injection-moulded from polypropylene or polyamide .
  • the base part 3 has an arched, in particular V-shaped, attachment surface 21, 22 which points towards the relevant clip segments 13, 14, for the material of the pivot joint 10, 11.
  • each of the clip segments 13, 14 has an arched, in particular V-shaped, attachment surface 23, 24, which points towards the base part, for the material of the pivot joint 10, 11.
  • the shape of the attachment surfaces 21, 22, 23, 24 means that in each pivot joint there is a location with a minimum distance between the base part 3 and the relevant clip segment 13, 14.
  • the shape of the attachment surfaces therefore aims in particular to determine the position of the pivot axis which is realized by a pivot joint.
  • a further aim of the arched shape is to increase the attachment surface area.
  • the arch shape of the attachment surfaces 21, 22, 23, 24 could also be semicircular, or something similar, instead of V-shaped.
  • FIGS 3 and 4 show pipe clip 30 which is largely similar to the pipe clip 1 which has been described with reference to Figures 1 and 2. Therefore, in the following description and in Figures 3 and 4, identical components are denoted by the same reference numerals and for a detailed description of these components reference is made to the above text.
  • the difference between the pipe clip 30 and the pipe clip 1 relates to the design of the two hook members.
  • the outwardly directed hook member is denoted by the reference numeral 31, and the inwardly directed hook member is denoted by the reference numeral 32.
  • Each of the hook members 31, 32 has an associated hook surface 31a and 32a, respectively, by means of which the hook members 31, 32 are able to hook fixedly together, so that a pipe which is surrounded by clip segments 13, 14 is locked in position. It can be seen in Figure 4 that the two clip segments 31, 32 are substantially prevented from moving apart by the fact that hook surface 31a bears against hook surface 32a.
  • the line through the hook surfaces 31a, 32a which are bearing against one another is directed substantially radially with respect to the centre 20 of the circle which is delimited by the clip segments 13, 14.
  • This position is advantageous for automatically hooking the two hook members 31, 32 together, in particular if the pipe is nondeformable .
  • the hook surfaces 31a and 32a are preferably disposed in such a way that, in the closed position of the pipe clip 30, the hook surfaces 31a and 32a are situated on the side of the clip segment 13 with respect to the perpendicular "1" which passes through the centre 20 and runs perpendicular to the line through the pivot axes 10, 11.
  • Each of the hook members 31, 32 furthermore has a stop surface 31b, 32b, respectively, which stop surfaces 31b, 32b, in the closed position of the pipe clip 30 shown in Figure 4, lie at a short distance from one another.
  • the smallest opening between the hook surface 32a and the edge of the stop surface 32b is substantially equal to the largest dimension, as seen in the same direction, of that section of the hook member 31 which comes to lie inside the hook member 32.
  • the hook member 31 can pass into the hook member 32 without the hook member 32 having to be deformed.
  • the stop surfaces therefore do not run parallel to the hook surfaces, but rather are at an outwardly opening angle thereto.
  • the reliability with which the hook members 31, 32 hook together is increased considerably and the pipe clip 30 can be used to hold sheathed pipes without there being any need to position a separate hard shell between the pipe and the pipe clip.
  • Figures 3 and 4 furthermore show that an outwardly directed locking projection 37 is arranged on boundary surface 35 and that an associated locking recess 38 is provided in boundary surface 36.
  • the locking projection 37 and the locking recess 38 are, for example, respectively a rib lying in the circumferential direction of the pipe clip and a corresponding slot.
  • the locking projection 37 and the locking recess 38 are designed in such a way that the two hooked-together hook members 31 and 32 cannot slide in the transverse direction with respect to one another, which transverse direction corresponds to the longitudinal direction of the pipe which is to be accommodated by the pipe clip. This locking reduces the risk of the two hook members unintentionally becoming detached from one another and therefore itself forms an improvement to the known pipe clip which is described in NL-B-174 294.
  • the figures 3 and 4 therefore disclose a pipe clip for attaching a pipe or similar object to a support, comprising a base part, which is designed for attaching the pipe clip to the support and which bears two pivot joints which are situated at a distance from one another and have pivot axes which are essentially parallel to one another, each of the pivot joints 10, 11 pivotably connecting the base part 3 to a clip segment 13, 14 of the pipe clip, each clip segment 13, 14 having a bearing surface 15, 16 which is substantially semicircular and is directed away from the other clip segment, for the pipe, and one of the clip segments 13 being provided, at its end which is remote from the base part, with a single outwardly directed hook member 31 and the other clip segment 14 being provided, at its end which is remote from the base part 3, with an inwardly directed hook member 32, each hook member having a hook surface which is able to interact with the hook surface of the other hook member, which hook surfaces are arranged in such a way that they are able to hook fixedly together when a pipe is pressed towards the base part between the
  • the stop surfaces 31b, 32b lie at a distance from one another when the hook surfaces bear against one another, which distance is such that the outwardly directed hook member 31 can be hooked into or disconnected from the inwardly directed hook member 32 substantially without deformation to the said inwardly directed hook member 32.
  • the inwardly directed hook member 32 has a planar boundary surface 35 which adjoins, at an acute angle, at one of its ends the associated hook surface 32a and at its other end the associated stop surface 32b. It is also preferred that the stop surface 32b extends as a flat surface between the boundary surface 35 and the semicircular bearing surface 16.
  • Pipe clip 30 for attaching a pipe or similar object to a support comprising a base part 3, which is designed for attaching the pipe clip to the support and which bears two pivot joints 10, 11 which are situated at a distance from one another and have pivot axes which are essentially parallel to one another, each of the pivot joints 10, 11 pivotably connecting the base part 3 to a clip segment 13, 14 of the pipe clip, each clip segment 13, 14 having a bearing surface 15, 16 which is substantially semicircular and is directed away from the other clip segment, for the pipe, and one of the clip segments 13 being provided, at its end which is remote from the base part, with a single outwardly directed hook member 31 and the other clip segment 14 being provided, at .
  • each hook member having a hook surface which is able to interact with the hook surface of the other hook member, which hook surfaces are arranged in such a way that they are able to hook fixedly onto one another when a pipe is pressed towards the base part between the clip segments, each of the hook members 31, 32 furthermore having a stop surface 31b, 32b which bears against the stop surface of the other hook member when the clip segment associated with the outwardly directed hook member is pressed inwards, characterized in that one of the hook members 31 is provided with a locking projection 37 and the other hook member 32 is provided with an associated locking recess 38 for preventing a mutual displacement of the hooked-together hook members 31, 32 in a direction substantially parallel to the longitudinal axis of the pipe which is to be accommodated by the pipe clip.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Supports For Pipes And Cables (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

Cette invention se rapporte à un collier de serrage (1) conçu pour attacher un tuyau ou analogue à un support. Ce collier de serrage comporte une base (3) pourvue d'une part, d'un organe de fixation permettant de fixer le collier de serrage (1) de tuyau au support et d'autre part, de deux articulations rotoïdes (10, 11) distantes l'une de l'autre et dotées d'axes de rotation qui sont sensiblement parallèles entre eux, chacune des articulations rotoïdes (10, 11) reliant, de manière à permettre la rotation, la base (3) à un segment (13, 14) du collier de serrage (1) de tuyau. Chaque segment (13, 14) du collier de serrage (1) possède une surface d'appui (15, 16) qui est sensiblement semi-circulaire et est orientée en direction opposée de l'autre segment du collier de serrage destiné au tuyau (2) ou analogue, et les segments (13, 14) du collier de serrage peuvent s'écarter ou se rapprocher l'un de l'autre en pivotant, de manière à entourer le tuyau (2), l'un des segments (13) du collier de serrage comportant, au niveau de son extrémité éloignée de la base (3), un élément de type crochet (17) tourné vers l'extérieur et l'autre segment (14) du collier de serrage comportant, au niveau de son extrémité éloignée de la base (3), un élément de type crochet (17) tourné vers l'intérieur. Les deux éléments de type crochet (17, 18) peuvent s'accoupler dans le but d'accrocher l'une avec l'autre les extrémités respectives des segments (13, 14) du collier de serrage, de sorte que le tuyau (2) entouré par les segments (13, 14) du collier de serrage, se trouve bloqué. Les articulations rotoïdes (10, 11) sont fabriquées dans une matière différente de celle des segments (13, 14) du collier de serrage et de la base (3).
PCT/NL1998/000446 1997-08-05 1998-08-03 Collier de serrage de tuyau Ceased WO1999008032A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU87519/98A AU8751998A (en) 1997-08-05 1998-08-03 Pipe clip

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL1006723A NL1006723C2 (nl) 1997-08-05 1997-08-05 Pijpbeugel.
NL1006722A NL1006722C2 (nl) 1997-08-05 1997-08-05 Pijpbeugel.
NL1006722 1997-08-05
NL1006723 1997-08-05

Publications (1)

Publication Number Publication Date
WO1999008032A1 true WO1999008032A1 (fr) 1999-02-18

Family

ID=26642637

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1998/000446 Ceased WO1999008032A1 (fr) 1997-08-05 1998-08-03 Collier de serrage de tuyau

Country Status (2)

Country Link
AU (1) AU8751998A (fr)
WO (1) WO1999008032A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1015823C2 (nl) 2000-07-27 2002-01-29 Clicquick A G Haaksluiting en pijpbeugel voorzien van een dergelijke haaksluiting.
EP1593894A1 (fr) * 2004-05-05 2005-11-09 Ramon Ceravalls Pujol Pince de fixation pour tuyaux
DE102015110201A1 (de) 2015-06-25 2016-12-29 Hella Kgaa Hueck & Co. Befestigungsklammer
EP3686468A1 (fr) 2019-01-22 2020-07-29 Cox Geelen B.V. Pince de tuyau pour fixer un tuyau ou un objet similaire sur un support

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7702656A (nl) * 1976-03-15 1977-09-19 Egli Fischer & Co Buisklem.
US4624432A (en) * 1983-06-29 1986-11-25 Super Glue Corporation Heavy duty clamping system
DE4123430C1 (fr) * 1991-07-15 1992-06-17 Trw United-Carr Gmbh & Co Kg, 6753 Enkenbach-Alsenborn, De
US5312081A (en) * 1992-11-30 1994-05-17 Martin Gordon C Hinged door quick access dip net holder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7702656A (nl) * 1976-03-15 1977-09-19 Egli Fischer & Co Buisklem.
US4624432A (en) * 1983-06-29 1986-11-25 Super Glue Corporation Heavy duty clamping system
DE4123430C1 (fr) * 1991-07-15 1992-06-17 Trw United-Carr Gmbh & Co Kg, 6753 Enkenbach-Alsenborn, De
US5312081A (en) * 1992-11-30 1994-05-17 Martin Gordon C Hinged door quick access dip net holder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1015823C2 (nl) 2000-07-27 2002-01-29 Clicquick A G Haaksluiting en pijpbeugel voorzien van een dergelijke haaksluiting.
WO2002010629A1 (fr) 2000-07-27 2002-02-07 Starquick International Ltd Fermeture a crochets et bride de fixation pour tuyau equipee de cette fermeture
US6935599B2 (en) 2000-07-27 2005-08-30 Starquick International Ltd. Hook closure and pipe clip with such a hook closure
EP1593894A1 (fr) * 2004-05-05 2005-11-09 Ramon Ceravalls Pujol Pince de fixation pour tuyaux
DE102015110201A1 (de) 2015-06-25 2016-12-29 Hella Kgaa Hueck & Co. Befestigungsklammer
EP3686468A1 (fr) 2019-01-22 2020-07-29 Cox Geelen B.V. Pince de tuyau pour fixer un tuyau ou un objet similaire sur un support
NL2022434B1 (en) 2019-01-22 2020-08-18 Coxgeelen B V A pipe clip for attaching a pipe or a similar object to a support

Also Published As

Publication number Publication date
AU8751998A (en) 1999-03-01

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