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EP2694826A1 - Device for securing an assembly screw to an element before being fixed to another element - Google Patents

Device for securing an assembly screw to an element before being fixed to another element

Info

Publication number
EP2694826A1
EP2694826A1 EP12717428.2A EP12717428A EP2694826A1 EP 2694826 A1 EP2694826 A1 EP 2694826A1 EP 12717428 A EP12717428 A EP 12717428A EP 2694826 A1 EP2694826 A1 EP 2694826A1
Authority
EP
European Patent Office
Prior art keywords
ring
screw
diameter
housing
circular zone
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.)
Withdrawn
Application number
EP12717428.2A
Other languages
German (de)
French (fr)
Inventor
Hugues Blanc
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.)
Dura Automotive Systems SAS
Original Assignee
Dura Automotive Systems SAS
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 Dura Automotive Systems SAS filed Critical Dura Automotive Systems SAS
Publication of EP2694826A1 publication Critical patent/EP2694826A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0258—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread using resiliently deformable sleeves, grommets or inserts
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/26—Construction of guiding-sheathings or guiding-tubes
    • F16C1/262—End fittings; Attachment thereof to the sheathing or tube
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • 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
    • Y10T29/53—Means to assemble or disassemble

Definitions

  • the invention relates to the technical sector of fixing devices and relates more particularly to a device for securing an assembly screw to an element to be fixed on another element.
  • the invention finds a particularly advantageous application in the automotive field, for example for fixing a cable on its sheath stop.
  • the object of the invention is to remedy these disadvantages in a simple, safe, effective and rational manner.
  • the problem to be solved by the invention is to be able to fasten an assembly screw to an element to be fixed on another element, with, as a first objective, to make the screw prisoner of the element and, as another objective, to use a conventional screw having a threaded bearing whose nominal diameter is greater than the diameter of the screw rod.
  • the device according to the invention comprises an anti-creep ring intended to receive the screw and one of whose ends has arrangements capable of delimiting, before engagement of the ring in a housing of the element in front of to be screwed, a circular zone of diameter greater than the nominal diameter of the threaded bearing surface and, after engagement of said ring in said housing, a circular zone of a diameter smaller than that of the nominal diameter of the threaded surface but greater than that of the rod so as to abut the said seat and imprison the screw in the ring, while allowing a limited displacement of said screw, in the ring.
  • said ring has arrangements capable of allowing it to elastic deformation under the effect of its engagement in the housing of the element, said deformation corresponding to the decrease in the diameter of the circular zone.
  • the arrangements of the ring capable of delimiting a circular zone of variable diameter by elastic deformation are constituted by a light formed over the entire length of said ring, while the abutment effect is obtained by at least two pins formed overflowing one of the ends of the bore of the ring.
  • the two lugs are diametrically opposed and at least two lugs are obtained by cutting and folding the ring.
  • the length of the screw is greater than the length of the ring, the threaded bearing being formed at the end of the screw rod.
  • the length of the ring substantially corresponds to the depth of the housing of the element.
  • the device according to the invention finds an advantageous application in the field of the automobile for fixing a cable on a sheath stop, without thereby excluding other applications not only in the automotive field, but also in other sectors.
  • FIG. 1 is a perspective view of an embodiment of the anti-creep ring according to the invention.
  • FIG. 2 is a longitudinal sectional view showing the engagement of the screw in the anti-creep ring, and before mounting in a housing of the element to be fixed.
  • FIG. 3 is a view corresponding to Figure 2 after engagement of the screw assembly and anti-creep ring in the housing of the element.
  • - Figure 4 is a view corresponding to Figure 3 showing the positioning before fixing, the element equipped with the set screw and anti-creep ring on another element.
  • Figure 5 is a view corresponding to Figure 4 showing the assembly of two elements.
  • FIG. 6 is a top view of an embodiment of the anti-creep ring.
  • FIG. 7 is a view in longitudinal section corresponding to FIG. 6.
  • FIG. 8 is a perspective view of a screw before engagement of the anti-creep ring.
  • Figure 9 is a view corresponding to Figure 8 after engagement of the screw in the anti-creep ring.
  • FIG. 10 is a perspective view showing, by way of non-limiting indication, the mounting of two anti-creep screw / ring assemblies, on a member constituting for example a sheath stop.
  • FIG. 11 is a view corresponding to FIG. 10 showing the positioning and positioning of the element equipped with two anti-creep screw / ring assemblies on a support and before fixing said element, the screws remaining trapped in the 'element.
  • Figure 12 is a view corresponding to Figure 1 1 showing the attachment of the element on the support.
  • the problem is to secure an assembly screw (1) to an element (2) to be fixed on another element (3).
  • the rod (1a) of the screw (1) has a threaded bearing (Ib) whose nominal diameter is greater than the diameter of said rod (1a).
  • the device according to the invention comprises an anti-creep ring (4), one end of which has arrangements capable of delimiting a circular zone of diameter (D) greater than the nominal diameter (D1) of the threaded bearing surface (1b). ). As shown in Figures 1, 6, and 7, this diameter (D) can be obtained by at least two lugs (4a) and (4b) formed in overflow of one end of the bore of the ring (4). ).
  • the lugs (4a) and (4b) are diametrically opposed.
  • the ring (4) has 4 lugs (4a, 4b, 4c, 4d) offset by 90 °.
  • these lugs can be obtained by cutting and folding the ring.
  • the ring (4) further has arrangements adapted to allow it to elastic deformation under the effect of its engagement in a housing (2a) of the element (2).
  • this elastic deformation capacity is obtained by a light (4e) formed over the entire length of the ring and according to its generators.
  • This light (4th) may for example have a median area of reduced width symmetrically connected to two end zones of greater width.
  • the screw (1) After engagement of the ring (2) equipped with the screw (1) in the housing (2a) of the element (2), and following a tight fitting of said ring in said housing, the latter is deformed so that the circular zone delimited by the lugs (4a, 4b, 4c, 4d) and initially of a diameter (D), has a diameter (D2) greater than the diameter (D3) of the rod (1a) but smaller than the diameter (D1) of the threaded surface (1b) to act as a stop at said reach.
  • the screw (1) can therefore be moved in the ring (4) between an abutment position of its head (1c) with the element (2) and a thrust position of the threaded bearing (1b) with the lugs (4a, 4b, 4c, 4d).
  • the length of the screw (1) is greater than that of the ring (4).
  • FIGS. 2 to 5 show the implementation of the device according to the invention for assembling the two elements (2) and (3).
  • the screw (1) is freely engaged in the bore of the ring (4).
  • the circular zone delimited by the lugs (4a, 4b, 4c, 4d) delimits a diameter (D) greater than to the diameter (D1) of the threaded bearing (1b).
  • the screw (1) After engagement of the screw (1) / ring (4) assembly in the housing (2a) of the element (2), the ring (4), under the effect of a tight fitting in said housing, is deformed elastically so that the circular zone delimited by the lugs (4a, 4b, 4c, 4d) has a diameter (D2) smaller than the diameter (Dl) of the threaded bearing surface.
  • This diameter (D2) being greater than the diameter (D3) of the rod (la)
  • the screw (1) can be freely moved coaxially in the anti-creep ring, from the stop position of its head (1c) with the element (2) to the stop position of the threaded bearing surface (1b) with the lugs (4a, 4b, 4c, 4d) (FIGS. 3 and 4).
  • FIG. 10 shows an example of application of the device according to the invention.
  • the set screw (1) / anti-creep ring (4) is engaged, under the conditions indicated above, in the housings of the element (2), which in this example corresponds to a stop of sheath.
  • the figure 1 1 shows this sheath stop equipped with two sets of screws (1) / ring (4) positioned on the support where the element (2) must be fixed. In this position, the screws are trapped in the element (2).
  • Figure (12) shows the attachment of the element (2) after screwing the screws into the support.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)

Abstract

The assembly screw (1) has a threaded segment (1b), the nominal diameter (D1) of which is greater than the diameter (D3) of its shank. The device comprises an anti-creep ring (4) intended to hold the screw (1) and one of the ends of which has arrangements (4a-4b-4c-4d) able to delimit, before the ring (4) is inserted into a housing (2a) in the element (2) before being screwed, a circular zone having a diameter (D) greater than the nominal diameter (D1) of the threaded segment (1b) and, after insertion of said ring (4) into said housing (2a), a circular zone (D) having a diameter (D2) less than that of the nominal diameter (D1) of the threaded segment (1b) but greater than that (D3) of the shank (1a) so as to act as an abutment for said segment and to enclose the screw (1) in the ring (4) while allowing it limited movement.

Description

DISPOSITIF POUR ASSUJETTIR UNE VIS D'ASSEMBLAGE A UN ELEMENT DEVANT ETRE FIXE SUR UN AUTRE ELEMENT.  DEVICE FOR ASSEMBLING AN ASSEMBLY SCREW WITH AN ELEMENT TO BE ATTACHED TO ANOTHER ELEMENT.
L'invention se rattache au secteur technique des dispositifs de fixation et concerne plus particulièrement un dispositif pour assujettir une vis d'assemblage à un élément devant être fixé sur autre élément. The invention relates to the technical sector of fixing devices and relates more particularly to a device for securing an assembly screw to an element to be fixed on another element.
L'invention trouve une application particulièrement avantageuse dans le domaine de l'automobile, par exemple pour la fixation d'un câble sur son arrêt de gaine.  The invention finds a particularly advantageous application in the automotive field, for example for fixing a cable on its sheath stop.
Ainsi lorsque l'on monte un câble pour le passage et/ou la sélection d'une vitesse sur son arrêt de gaine au moyen de vis, l'opérateur éprouve de grande difficulté pour tenir à la fois le câble, l'arrêt de gaine, l'organe de vissage et les vis en tant que telles. En effet, il est nécessaire de positionner correctement la gaine par rapport au support, et faire parfaitement coïncider les trous destinés à recevoir les vis d'assemblage afin de pouvoir engager et visser lesdites vis. Thus when a cable is mounted for the passage and / or the selection of a speed on its stopping of sheath by means of screws, the operator has great difficulty in holding both the cable and the sheath stopping. , the screwing member and the screws as such. Indeed, it is necessary to properly position the sheath relative to the support, and perfectly coincide the holes for receiving the assembly screws in order to engage and screw said screws.
Pour tenter de remédier à ces inconvénients, on a proposé d'équiper l'élément devant être vissé sur un support quelconque, de vis dites imperdables. Ces vis imperdables sont généralement maintenues dans l'élément par sertissage et sont d'une conception spéciale et par conséquent d'un coût supérieur à celui d'une vis normale.  In an attempt to overcome these disadvantages, it has been proposed to equip the element to be screwed on any support, screws called captive. These captive screws are generally held in the element by crimping and are of a special design and therefore cost more than a normal screw.
L'invention s'est fixée pour but de remédier à ces inconvénients de manière simple, sure, efficace et rationnelle. The object of the invention is to remedy these disadvantages in a simple, safe, effective and rational manner.
Le problème que se propose de résoudre l'invention est de pouvoir assujettir une vis d'assemblage à un élément devant être fixé sur un autre élément, avec, comme premier objectif, de rendre la vis prisonnière de l'élément et, comme autre objectif, d'utiliser une vis classique présentant une portée filetée dont le diamètre nominal est supérieur au diamètre de la tige de vis. Pour résoudre un tel problème, le dispositif selon l'invention comprend une bague anti-fluage destinée à recevoir la vis et dont l'une des extrémités présente des agencements aptes à délimiter, avant engagement de la bague dans un logement de l'élément devant être vissé, une zone circulaire d'un diamètre supérieur au diamètre nominal de la portée filetée et, après engagement de ladite bague dans ledit logement, une zone circulaire d'un diamètre inférieur à celui du diamètre nominal de la portée filetée mais supérieur à celui de la tige de manière à faire office de butée à ladite portée et emprisonner la vis dans la bague, tout en permettant un déplacement limité de ladite vis, dans la bague. The problem to be solved by the invention is to be able to fasten an assembly screw to an element to be fixed on another element, with, as a first objective, to make the screw prisoner of the element and, as another objective, to use a conventional screw having a threaded bearing whose nominal diameter is greater than the diameter of the screw rod. To solve such a problem, the device according to the invention comprises an anti-creep ring intended to receive the screw and one of whose ends has arrangements capable of delimiting, before engagement of the ring in a housing of the element in front of to be screwed, a circular zone of diameter greater than the nominal diameter of the threaded bearing surface and, after engagement of said ring in said housing, a circular zone of a diameter smaller than that of the nominal diameter of the threaded surface but greater than that of the rod so as to abut the said seat and imprison the screw in the ring, while allowing a limited displacement of said screw, in the ring.
Il résulte de ces dispositions qu'après avoir monté dans son logement la bague anti-fluage, cette dernière retient la vis prisonnière. Les deux fonctions vis imperdable et bague anti-fluage sont donc réalisés par un même composant. It follows from these provisions that after mounting in its housing the anti-creep ring, the latter retains the captive screw. Both functions captive screw and anti-creep ring are made by the same component.
Pour résoudre le problème posé d'assurer le maintien de la vis après engagement de la bague dans son logement, ladite bague présente des agencements aptes à lui permettre une déformation élastique sous l'effet de son engagement dans le logement de l'élément, ladite déformation correspondant à la diminution du diamètre de la zone circulaire. To solve the problem of ensuring the maintenance of the screw after engagement of the ring in its housing, said ring has arrangements capable of allowing it to elastic deformation under the effect of its engagement in the housing of the element, said deformation corresponding to the decrease in the diameter of the circular zone.
Pour résoudre le problème posé de permettre une déformation élastique de la bague et de permettre un déplacement coaxial de la vis dans la bague anti-fluage et créer une zone de butée à la portée filetée afin de retenir la vis prisonnière, les agencements de la bague aptes à délimiter une zone circulaire de diamètre variable par déformation élastique sont constitués par une lumière formée sur la totalité de la longueur de ladite bague, tandis que l'effet de butée est obtenue par au moins deux ergots formés en débordement de l'une des extrémités de l'alésage de la bague. Avantageusement, les deux ergots sont diamétralement opposés et au moins deux ergots sont obtenus par découpage et pliage de la bague. To solve the problem posed to allow an elastic deformation of the ring and to allow a coaxial displacement of the screw in the anti-creep ring and to create a stop zone at the threaded range in order to retain the captive screw, the arrangements of the ring capable of delimiting a circular zone of variable diameter by elastic deformation are constituted by a light formed over the entire length of said ring, while the abutment effect is obtained by at least two pins formed overflowing one of the ends of the bore of the ring. Advantageously, the two lugs are diametrically opposed and at least two lugs are obtained by cutting and folding the ring.
Selon une autre caractéristique la longueur de la vis est supérieure à la longueur de la bague, la portée filetée étant formée en bout de la tige de vis. La longueur de la bague correspond sensiblement à la profondeur du logement de l'élément. According to another characteristic, the length of the screw is greater than the length of the ring, the threaded bearing being formed at the end of the screw rod. The length of the ring substantially corresponds to the depth of the housing of the element.
Comme indiqué, le dispositif selon l'invention trouve une application avantageuse dans le domaine de l'automobile pour la fixation d'un câble sur un arrêt de gaine, sans pour cela exclure d'autres applications non seulement dans le domaine automobile, mais également dans d'autres secteurs. As indicated, the device according to the invention finds an advantageous application in the field of the automobile for fixing a cable on a sheath stop, without thereby excluding other applications not only in the automotive field, but also in other sectors.
L'invention est exposée ci-après plus en détail à l'aide des figures des dessins annexés dans lesquels : The invention is described below in more detail with reference to the figures of the accompanying drawings, in which:
- la figure 1 est une vue en perspective d'une forme de réalisation de la bague anti-fluage selon l'invention.  - Figure 1 is a perspective view of an embodiment of the anti-creep ring according to the invention.
- la figure 2 est une vue en coupe longitudinale montrant l'engagement de la vis dans la bague anti-fluage, et avant son montage dans un logement de l'élément à fixer.  - Figure 2 is a longitudinal sectional view showing the engagement of the screw in the anti-creep ring, and before mounting in a housing of the element to be fixed.
- la figure 3 est une vue correspondant à la figure 2 après engagement de l'ensemble vis et bague anti-fluage dans le logement de l'élément. - la figure 4 est une vue correspondante à la figure 3 montrant le positionnement avant fixation, de l'élément équipé de l'ensemble vis et bague anti-fluage sur un autre élément. - Figure 3 is a view corresponding to Figure 2 after engagement of the screw assembly and anti-creep ring in the housing of the element. - Figure 4 is a view corresponding to Figure 3 showing the positioning before fixing, the element equipped with the set screw and anti-creep ring on another element.
- la figure 5 est une vue correspondant à la figure 4 montrant l'assemblage de deux éléments.  - Figure 5 is a view corresponding to Figure 4 showing the assembly of two elements.
- La figure 6 est une vue de dessus d'une forme de réalisation de la bague anti-fluage.  - Figure 6 is a top view of an embodiment of the anti-creep ring.
- La figure 7 est une vue en coupe longitudinale correspondant à la figure 6.  FIG. 7 is a view in longitudinal section corresponding to FIG. 6.
- La figure 8 est une vue en perspective d'une vis avant engagement de la bague anti-fluage.  - Figure 8 is a perspective view of a screw before engagement of the anti-creep ring.
- La figure 9 est une vue correspondant à la figure 8 après engagement de la vis dans la bague anti-fluage.  - Figure 9 is a view corresponding to Figure 8 after engagement of the screw in the anti-creep ring.
- La figure 10 est une vue en perspective montrant, à titre indicatif nullement limitatif, le montage de deux ensembles vis / bague anti- fluage, sur un élément constituant par exemple un arrêt de gaine. - Figure 10 is a perspective view showing, by way of non-limiting indication, the mounting of two anti-creep screw / ring assemblies, on a member constituting for example a sheath stop.
- La figure 1 1 est une vue correspondant à la figure 10 montant la mise en place et le positionnement de l'élément équipé de deux ensembles vis / bague anti-fluage sur un support et avant fixation dudit élément, les vis restant prisonnières de l'élément.FIG. 11 is a view corresponding to FIG. 10 showing the positioning and positioning of the element equipped with two anti-creep screw / ring assemblies on a support and before fixing said element, the screws remaining trapped in the 'element.
- La figure 12 est une vue correspondant à la figure 1 1 montrant la fixation de l'élément sur le support. - Figure 12 is a view corresponding to Figure 1 1 showing the attachment of the element on the support.
Comme indiqué, le problème posé est d'assujettir une vis d'assemblage (1) à un élément (2) devant être fixé sur un autre élément (3). La tige (la) de la vis (1) présente une portée filetée (lb) dont le diamètre nominal est supérieur au diamètre de ladite tige (la). Le dispositif selon l'invention comprend une bague anti-fluage (4) dont l'une des extrémités présente des agencements aptes à délimiter une zone circulaire d'un diamètre (D) supérieur au diamètre nominal (Dl) de la portée filetée (lb). Comme le montrent les figures 1, 6, et 7, ce diamètre (D) peut être obtenu par au moins deux ergots (4a) et (4b) formés en débordement de l'une des extrémités de l'alésage de la bague (4). As indicated, the problem is to secure an assembly screw (1) to an element (2) to be fixed on another element (3). The rod (1a) of the screw (1) has a threaded bearing (Ib) whose nominal diameter is greater than the diameter of said rod (1a). The device according to the invention comprises an anti-creep ring (4), one end of which has arrangements capable of delimiting a circular zone of diameter (D) greater than the nominal diameter (D1) of the threaded bearing surface (1b). ). As shown in Figures 1, 6, and 7, this diameter (D) can be obtained by at least two lugs (4a) and (4b) formed in overflow of one end of the bore of the ring (4). ).
De préférence, les ergots (4a) et (4b) sont diamétralement opposés. Aux figures 6 et 7, la bague (4) présente 4 ergots (4a, 4b, 4c, 4d) décalés de 90°. Par exemple, ces ergots peuvent être obtenus par découpage et pliage de la bague.  Preferably, the lugs (4a) and (4b) are diametrically opposed. In Figures 6 and 7, the ring (4) has 4 lugs (4a, 4b, 4c, 4d) offset by 90 °. For example, these lugs can be obtained by cutting and folding the ring.
La bague (4) présente en outre des agencements aptes à lui permettre une déformation élastique sous l'effet de son engagement dans un logement (2a) de l'élément (2). Par exemple, cette capacité de déformation élastique, comme le montre la figure 1, est obtenue par une lumière (4e) formée sur la totalité de la longueur de la bague et selon ses génératrices. Cette lumière (4e) peut par exemple présenter une zone médiane de largeur réduite raccordée symétriquement à deux zones d'extrémités de largeur plus importante. The ring (4) further has arrangements adapted to allow it to elastic deformation under the effect of its engagement in a housing (2a) of the element (2). For example, this elastic deformation capacity, as shown in Figure 1, is obtained by a light (4e) formed over the entire length of the ring and according to its generators. This light (4th) may for example have a median area of reduced width symmetrically connected to two end zones of greater width.
Après engagement de la bague (2) équipée de la vis (1) dans le logement (2a) de l'élément (2), et suite à un montage serré de ladite bague dans ledit logement, cette dernière est déformée de sorte que la zone circulaire délimitée par les ergots (4a, 4b, 4c 4d) et initialement d'un diamètre (D), présente un diamètre (D2) supérieur au diamètre (D3) de la tige (la) mais inférieur au diamètre (Dl) de la portée filetée (lb) afin de faire office de butée à ladite portée. La vis (1) peut donc être déplacée dans la bague (4) entre une position de butée de sa tête (le) avec l'élément (2) et une position de butée de la portée filetée (lb) avec les ergots (4a, 4b, 4c, 4d). La longueur de la vis (1) est supérieure à celle de la bague (4). After engagement of the ring (2) equipped with the screw (1) in the housing (2a) of the element (2), and following a tight fitting of said ring in said housing, the latter is deformed so that the circular zone delimited by the lugs (4a, 4b, 4c, 4d) and initially of a diameter (D), has a diameter (D2) greater than the diameter (D3) of the rod (1a) but smaller than the diameter (D1) of the threaded surface (1b) to act as a stop at said reach. The screw (1) can therefore be moved in the ring (4) between an abutment position of its head (1c) with the element (2) and a thrust position of the threaded bearing (1b) with the lugs (4a, 4b, 4c, 4d). The length of the screw (1) is greater than that of the ring (4).
On renvoie notamment aux figures 2 à 5 qui montrent la mise en œuvre du dispositif selon l'invention pour l'assemblage des deux éléments (2) et (3). A la figure 2, la vis (1) est engagée librement dans l'alésage de la bague (4). Dans cette position, c'est-à-dire avant engagement de la bague anti-fluage dans l'élément (2), la zone circulaire délimitée par les ergots (4a, 4b, 4c, 4d) délimite un diamètre (D) supérieur au diamètre (Dl) de la portée filetée (lb). Après engagement de l'ensemble vis (1) / bague (4) dans le logement (2a) de l'élément (2), la bague (4), sous l'effet d'un montage serré dans ledit logement, est déformée élastiquement de sorte que la zone circulaire délimitée par les ergots (4a, 4b, 4c, 4d) présente un diamètre (D2) inférieur au diamètre (Dl) de la portée filetée. Ce diamètre (D2) étant supérieur au diamètre (D3) de la tige (la), la vis (1) peut être librement déplacée coaxialement dans la bague anti-fluage, depuis la position de butée de sa tête (le) avec l'élément (2) jusqu'à la position de butée de la portée filetée (lb) avec les ergots (4a, 4b, 4c, 4d) (figures 3 et 4). FIGS. 2 to 5 show the implementation of the device according to the invention for assembling the two elements (2) and (3). In Figure 2, the screw (1) is freely engaged in the bore of the ring (4). In this position, that is to say before engagement of the anti-creep ring in the element (2), the circular zone delimited by the lugs (4a, 4b, 4c, 4d) delimits a diameter (D) greater than to the diameter (D1) of the threaded bearing (1b). After engagement of the screw (1) / ring (4) assembly in the housing (2a) of the element (2), the ring (4), under the effect of a tight fitting in said housing, is deformed elastically so that the circular zone delimited by the lugs (4a, 4b, 4c, 4d) has a diameter (D2) smaller than the diameter (Dl) of the threaded bearing surface. This diameter (D2) being greater than the diameter (D3) of the rod (la), the screw (1) can be freely moved coaxially in the anti-creep ring, from the stop position of its head (1c) with the element (2) to the stop position of the threaded bearing surface (1b) with the lugs (4a, 4b, 4c, 4d) (FIGS. 3 and 4).
Il suffit ensuite de disposer l'élément (2) équipé de l'ensemble vis (1) / bague anti-fluage (4) en correspondance avec un trou taraudé (3a) de l'élément (3) sur lequel doit être fixé l'élément (2) (figure 4). Dans cette position, la vis (1) reste prisonnière de la bague anti-fluage (4) montée dans le logement de l'élément (2). On peut ensuite procéder, de manière classique, au vissage de la vis (1) dans le taraudage (3a) de l'élément (3) (figure 5).  It is then sufficient to arrange the element (2) equipped with the screw (1) / anti-creep (4) assembly in correspondence with a threaded hole (3a) of the element (3) on which the element (2) (Figure 4). In this position, the screw (1) remains trapped in the anti-creep ring (4) mounted in the housing of the element (2). It is then possible, in a conventional manner, to screw the screw (1) into the thread (3a) of the element (3) (FIG. 5).
Les figures 10 à 12 montrent un exemple d'application du dispositif selon l'invention. A la figure 10, l'ensemble vis (1) / bague anti-fluage (4) est engagé, dans les conditions indiquées précédemment, dans les logements de l'élément (2), qui dans cet exemple, correspond à un arrêt de gaine. La figure 1 1 montre cet arrêt de gaine équipé des deux ensembles vis (1) / bague (4) positionné sur le support où doit être fixé l'élément (2). Dans cette position, les vis sont prisonnières de l'élément (2). La figure (12) montre la fixation de l'élément (2) après vissage des vis dans le support. Figures 10 to 12 show an example of application of the device according to the invention. In FIG. 10, the set screw (1) / anti-creep ring (4) is engaged, under the conditions indicated above, in the housings of the element (2), which in this example corresponds to a stop of sheath. The figure 1 1 shows this sheath stop equipped with two sets of screws (1) / ring (4) positioned on the support where the element (2) must be fixed. In this position, the screws are trapped in the element (2). Figure (12) shows the attachment of the element (2) after screwing the screws into the support.
Les avantages ressortent bien de la description, en particulier on souligne et on rappelle : The advantages stand out well from the description, in particular one underlines and recalls:
- Après montage de l'ensemble vis / bague anti-fluage dans le logement correspondant, ladite bague anti-fluage retient la vis prisonnière, les deux fonctions vis imperdable - bague anti-fluage sont réalisées par un même composant.  - After mounting the screw / anti-creep ring assembly in the corresponding housing, said anti-creep ring retains the captive screw, the two captive screw functions - anti-creep ring are made by the same component.
- L'utilisation de vis classiques présentant une portée filetée de diamètre extérieur supérieur au diamètre de la tige de vis.  - The use of conventional screws having a threaded surface of outer diameter greater than the diameter of the screw rod.

Claims

R E V E N D I C A T I O N S R E V E N D I C A T IO N S
-1- Dispositif pour assujettir une vis d'assemblage (1) à un élément (2) devant être fixé sur un autre élément (3), la vis d'assemblage (1) présentant une portée filetée (lb) dont le diamètre nominal (Dl) est supérieur au diamètre (D3) de sa tige, caractérisé en ce qu'il comprend une bague anti- fluage (4) destinée à recevoir la vis (1) et dont l'une des extrémités présente des agencements (4a-4b-4c-4d) aptes à délimiter, avant engagement de la bague (4) dans un logement (2a) de l'élément (2) devant être vissé, une zone circulaire d'un diamètre (D) supérieur au diamètre nominal (Dl) de la portée filetée (lb) et, après engagement de ladite bague (4) dans ledit logement (2a), une zone circulaire (D) d'un diamètre (D2) inférieur à celui du diamètre nominal (Dl) de la portée filetée (lb) mais supérieur à celui (D3) de la tige (la) de manière à faire office de butée à ladite portée et emprisonner la vis (1) dans la bague (4) tout en permettant son déplacement limité. -1- Device for securing an assembly screw (1) to an element (2) to be fixed to another element (3), the assembly screw (1) having a threaded bearing (Ib) having a nominal diameter (D1) is greater than the diameter (D3) of its rod, characterized in that it comprises an anti-creep ring (4) intended to receive the screw (1) and one of whose ends has arrangements (4a). 4b-4c-4d) able to define, before engagement of the ring (4) in a housing (2a) of the element (2) to be screwed, a circular zone of a diameter (D) greater than the nominal diameter ( D1) of the threaded bearing surface (1b) and, after engagement of said ring (4) in said housing (2a), a circular zone (D) of a diameter (D2) smaller than that of the nominal diameter (D1) of the threaded bearing (1b) but greater than that (D3) of the rod (1a) so as to act as a stop at said seat and imprison the screw (1) in the ring (4) while allowing n limited movement.
-2- Dispositif selon la revendication 1 caractérisé en ce que la bague (4) présente des agencements (4e) aptes à lui permettre une déformation élastique sous l'effet de son engagement dans le logement (2a) de l'élément (2), ladite déformation correspondant à la diminution du diamètre de la zone circulaire (D). -2- Device according to claim 1 characterized in that the ring (4) has arrangements (4e) adapted to allow it to elastic deformation under the effect of its engagement in the housing (2a) of the element (2) said deformation corresponding to the decrease in the diameter of the circular zone (D).
-3- Dispositif selon l'une quelconque des revendications 1-2, caractérisé en ce que les agencements de la bague aptes à délimiter une zone circulaire de diamètre variable par déformation élastique, sont constitués par une lumière (4e) formée sur la totalité de la longueur de ladite bague, tandis que l'effet de butée est obtenue par au moins deux ergots (4a-4b-4c-4d) formés en débordement de l'une des extrémités de l'alésage de la bague (4). -4- Dispositif selon la revendication 3 caractérisé en ce qu'au moins deux ergots sont diamétralement opposés. -3- Device according to any one of claims 1-2, characterized in that the arrangements of the ring capable of delimiting a circular zone of variable diameter by elastic deformation, are constituted by a light (4e) formed on the whole of the length of said ring, while the abutment effect is obtained by at least two lugs (4a-4b-4c-4d) formed in overflow of one end of the bore of the ring (4). -4- Device according to claim 3 characterized in that at least two lugs are diametrically opposed.
-5- Dispositif selon l'une quelconque des revendications 3 et 4, caractérisé en ce que les deux ergots sont obtenus par découpage et pliage de la bague (4). -5- Device according to any one of claims 3 and 4, characterized in that the two lugs are obtained by cutting and bending of the ring (4).
-6- Dispositif selon l'une quelconque des revendications 1-5, caractérisé en ce que la longueur de la vis (1) est supérieure à la longueur de la bague (4), la portée filetée (lb) étant formée en bout de la tige de vis (la). -6- Device according to any one of claims 1-5, characterized in that the length of the screw (1) is greater than the length of the ring (4), the threaded bearing (Ib) being formed at the end of the screw rod (la).
-7- Dispositif selon l'une quelconque des revendications 1-6, caractérisé en ce que la longueur de la bague (4) correspond sensiblement à la profondeur du logement (2a) de l'élément (2) -8 -Utilisation du dispositif selon l'une quelconque des revendications 1-7, dans le domaine de l'automobile pour la fixation d'un câble sur un arrêt de gaine. -7- Device according to any one of claims 1-6, characterized in that the length of the ring (4) substantially corresponds to the depth of the housing (2a) of the element (2) -8 -Use of the device according to any one of claims 1-7, in the field of automobile for fixing a cable on a sheath stop.
-9- Utilisation selon la revendication 8 caractérisée en ce que le câble est rendu solidaire de l'élément (2) recevant au moins la vis (1), l'arrêt de gaine constituant l'autre élément (3). -9- Use according to claim 8 characterized in that the cable is secured to the element (2) receiving at least the screw (1), the sheath stop constituting the other element (3).
EP12717428.2A 2011-04-04 2012-04-02 Device for securing an assembly screw to an element before being fixed to another element Withdrawn EP2694826A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1152847A FR2973457B1 (en) 2011-04-04 2011-04-04 DEVICE FOR ASSEMBLING AN ASSEMBLY SCREW WITH AN ELEMENT TO BE ATTACHED TO ANOTHER ELEMENT
PCT/FR2012/050711 WO2012136922A1 (en) 2011-04-04 2012-04-02 Device for securing an assembly screw to an element before being fixed to another element

Publications (1)

Publication Number Publication Date
EP2694826A1 true EP2694826A1 (en) 2014-02-12

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EP12717428.2A Withdrawn EP2694826A1 (en) 2011-04-04 2012-04-02 Device for securing an assembly screw to an element before being fixed to another element

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US (1) US9180564B2 (en)
EP (1) EP2694826A1 (en)
BR (1) BR112013024911A2 (en)
FR (1) FR2973457B1 (en)
WO (1) WO2012136922A1 (en)

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DE102014207188B8 (en) * 2014-04-15 2015-12-24 Eagleburgmann Germany Gmbh & Co. Kg Mechanical seal with bellows element
FR3028900B1 (en) * 2014-11-20 2017-04-07 Renault Sas REINFORCED ANTI-FLUAGE RING
US11391316B2 (en) 2020-01-15 2022-07-19 Pratt & Whitney Canada Corp. Fastener cover for captive effect

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US3139768A (en) * 1961-12-11 1964-07-07 Illinois Tool Works Cable fastener assembly
US3603626A (en) * 1969-01-27 1971-09-07 Standard Pressed Steel Co High-strength joint and fastener assembly therefor
US3752515A (en) * 1971-09-15 1973-08-14 Kennametal Inc Resilient keeper ring
US4697968A (en) * 1981-02-27 1987-10-06 Westinghouse Electric Corp. Locking ring
JPH0230518U (en) * 1988-08-22 1990-02-27
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Also Published As

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FR2973457B1 (en) 2013-04-05
FR2973457A1 (en) 2012-10-05
US20140090237A1 (en) 2014-04-03
WO2012136922A1 (en) 2012-10-11
BR112013024911A2 (en) 2016-12-20
US9180564B2 (en) 2015-11-10

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