(19)
(11)EP 2 941 575 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
16.05.2018 Bulletin 2018/20

(21)Application number: 13821643.7

(22)Date of filing:  30.12.2013
(51)Int. Cl.: 
F16B 21/02  (2006.01)
F16B 37/04  (2006.01)
F16B 5/02  (2006.01)
(86)International application number:
PCT/US2013/078346
(87)International publication number:
WO 2014/107437 (10.07.2014 Gazette  2014/28)

(54)

TWIST-IN-PLACE GROMMET CONNECTION ASSEMBLY

DREHBARE TÜLLENVERBINDUNGSANORDNUNG

ENSEMBLE DE CONNEXION D'ILLET À ROTATION SUR PLACE


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 02.01.2013 US 201361748202 P

(43)Date of publication of application:
11.11.2015 Bulletin 2015/46

(73)Proprietor: Illinois Tool Works Inc.
Glenview, IL 60025 (US)

(72)Inventors:
  • HOLT, Jason, D.
    Glenview, Illinois 60025 (US)
  • OWENS, Ronald, C.
    Glenview, Illinois 60025 (US)
  • BISSET, John, D.
    Glenview, Illinois 60025 (US)
  • JIPP, Eric, B.
    Glenview, Illinois 60025 (US)
  • FIELD, Troy, S.
    Glenview, Illinois 60025 (US)
  • TUTTLE, Jeremy, R.d.
    Glenview, Illinois 60025 (US)

(74)Representative: Trinks, Ole 
Meissner Bolte Patentanwälte Rechtsanwälte Partnerschaft mbB Postfach 10 26 05
86016 Augsburg
86016 Augsburg (DE)


(56)References cited: : 
EP-A2- 2 218 923
DE-A1-102004 049 886
US-B1- 6 309 156
DE-A1- 19 705 413
US-A1- 2002 172 550
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    TECHNICAL FIELD



    [0001] The present disclosure relates generally to fasteners and, more particularly, the disclosure pertains to a connection assembly including a grommet which is lockable within a panel or other support structure as is defined in the preamble of claim 1. The grommet is installed and captured within the support panel and provides noise and vibration isolation on both sides of the structure.
    A connection assembly as defined in the preamble of claim 1 is known from DE 197 05 413 A1.

    BACKGROUND



    [0002] A covering structure such as a plastic engine cover or the like may be attached to an underlying substructure such as an engine block by passing elongated fasteners such as connection bolts or the like through openings in the covering structure for engagement with the substructure. In this regard, the elongated fasteners may extend either towards the substructure (i.e. away from the covering structure) or towards the covering structure (i.e. away from the substructure). It is known to use grommets of rubber or other resilient compressible material held within the openings of the covering structure for disposition in surrounding relation to the connection bolts. Such grommets are intended to prevent bolt movement and accompanying rattling.

    [0003] As will be appreciated, in the manufacturing process, a covering structure may be produced at a location remote from the point of assembly to the substructure In known prior designs, the fasteners or fastening nuts are not captured within the covering structure prior to being shipped. Rather, prior designs typically require an individual user to manually attach the fastening components within the covering structure and to then attach the covering structure to the engine block or other substructure manually. During such manual assembly procedures, the typical practice has been to use grommets having relatively thin integral flanges at either end connected by a neck with an axial bore extending the length of the grommet. Such grommets are typically forced through a hole in the covering structure and then a metal stamping or bushing is pushed into the axial bore. An elongated fastening element such a threaded bolt or the like then may project through the stamping or bushing in connecting relation between the covering structure and the substructure. Such a practice provides good containment and vibration damping in many environments of use. However, in some instances, insertion of the traditional style grommets may be cumbersome due to the tight tolerances involved. This may be particularly problematic in the event that the covering structure is relatively fragile, since application of improper or excessive force may cause damage. Accordingly, an improved grommet construction and procedure of use may represent a desirable advancement over the known art.

    SUMMARY



    [0004] The present disclosure provides advantages and alternatives over the prior art by providing a grommet-based connection assembly as defined in claim 1 adapted for ease of installation while maintaining desired sealing and vibration damping characteristics. The connection assembly includes a grommet of hollow construction including a first collar and a second non-circular collar disposed in spaced-apart relation from the first collar. An axial bore extends entirely through the grommet. A sleeve insert including a hollow stem extends into the axial bore so as to at least partially line the axial bore. A complementary retaining panel includes a substantially non-circular access opening adapted to receive the second collar in pass-through relation and to block the first collar against insertion. Upon rotation, the grommet is blocked against withdrawal through the access opening and the retaining panel is held securely in place. A connection assembly consistent with the present disclosure provides the added feature of damping isolation on both sides of the plastic component being attached with superior noise, vibration, and harshness reduction. Moreover, the subject connection assembly may provide a more robust fastening method with greater clamp-down force. The subject connection assembly may also provide substantial cost savings over previous attachment designs.

    [0005] In accordance with one exemplary aspect, the present disclosure provides a connection assembly adapted for receipt of a male connection member at the interior of a grommet for operative attachment of retaining panel to a substructure. The connection assembly includes a grommet of hollow unitary construction formed from elastomeric material. The grommet includes a first collar having a first effective diameter and a second collar disposed in spaced-apart relation from the first collar. The second collar is of substantially non-circular geometry defining a second effective diameter. The grommet further includes a neck extending between the first collar and the second collar. An axial bore extends entirely through the grommet. A sleeve insert including a hollow stem extends from a point of insertion on one side of the grommet into the axial bore so as to at least partially line the axial bore. The sleeve insert further includes an annular flange extending radially outwardly away from the proximal end of the stem. The annular flange has a diameter greater than the axial bore at the point of insertion. The connection assembly further includes a retaining panel including a substantially non-circular access opening adapted to receive the second collar in pass-through relation when the second collar is aligned with the access opening. The access opening is adapted to block the first collar against pass-through insertion. Upon rotation of the grommet following insertion into the access opening, the grommet is blocked against withdrawal through the access opening and the retaining panel is held between the first collar and the second collar. In this condition, the second collar disposed in only partial surrounding relation to the access opening. The second collar has a lobe-shaped perimeter with a pair of opposing, substantially straight lateral sides.The retaining panel includes a pair of raised stops projecting away from the underside of the retaining panel at positions outboard from the access opening in adjacent relation to molded integral lead-in ramps, wherein the raised stops project away from the underside of the retaining panel to a distance greater than the height of the lead-in ramps and herein upon rotation of the grommet following insertion of the second collar, The second collar travels up the lead in ramps until at least one of the lateral sides contacts at least one of the raised stops to define a locked condition with portions of the access opening adjacent to the lateral sides remaining uncovered by the second collar.

    BRIEF DESCRIPTION OF THE DRAWINGS



    [0006] 

    FIG. 1 is an elevation perspective schematic view illustrating an exemplary grommet consistent with the present disclosure;

    FIG. 2 is a schematic cross-sectional view of the exemplary grommet of FIG. 1 taken generally along line 2-2 in FIG. 1;

    FIG. 3 is a schematic cross-sectional view of the exemplary grommet of FIG. 1 taken generally along line 3-3 in FIG. 2;

    FIG. 4 is a schematic plan view taken generally along line 4-4 in FIG. 3

    FIG. 5 is a schematic cut-away view illustrating a first embodiment of an exemplary grommet assembly housing an elongated fastening element and illustrating interior features of the grommet and sleeve insert;

    FIG. 6 is a schematic elevation perspective view illustrating the underside of an retaining panel consistent with the present disclosure with a set of positive stops for locking rotation of the exemplary grommet of FIG. 1 after insertion;

    FIG. 7 is a schematic elevation perspective view illustrating locking engagement between the grommet assembly of FIG. 5 and the retaining panel of FIG. 6;

    FIG. 8 is a schematic side view illustrating a final locking engagement between the grommet assembly of FIG. 5 and the retaining panel of FIG. 6; and

    FIG. 9 is a schematic view illustrating a second embodiment of an exemplary grommet assembly incorporating a captured flange nut secured to the exemplary grommet of FIG. 1; and

    FIG. 10 is a schematic cut-away view taken through the grommet assembly in FIG. 9 generally along line 10-10 illustrating interior features of the grommet with a retained stem and captured flange nut;



    [0007] Before the embodiments of the disclosure are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction or the arrangements of the components set forth in the following description or illustrated in the drawings. The disclosure is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use herein of "including", "comprising" and variations thereof is meant to encompass the items listed thereafter and equivalents thereof, as well as additional items and equivalents thereof. Any dimensions are non-limiting and are exemplary only.

    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS



    [0008] Referring now to the drawings, and to FIGS. 1-4 in particular, it may be seen that the present disclosure provides a grommet 10 of rubber or other resilient material adapted to be held within a retaining element such as an engine cover or the like in a manner as will be described further hereinafter. In the illustrated exemplary construction the grommet 10 may have a unitary molded construction formed from a rubber compound such as NBR, SBR, EPDM or any other suitable elastomeric material as may be desired. As illustrated, the grommet 10 may have a spaced collar construction including an upper collar 12 of generally circular, annular configuration and a lower collar 14 with a substantially rectangular or lobe-shaped geometry such that it has a length dimension "L" (FIG. 3) which is greater than the width dimension "W" (FIG. 2).

    [0009] As illustrated, in the exemplary construction the lower collar 14 has a generally lobe-shaped perimeter and includes a pair of opposing, substantially flat lateral sides 16 extending between a pair of opposing curved ends 18. As best seen in FIG. 3, the effective outer diameter of the lower collar 14 as defined by the length dimension "L" between the apex positions on the opposing curved ends 18 may be substantially equivalent to the outer diameter of the upper collar 12. Moreover, the curved ends 18 may be substantially aligned with the sides of the upper collar 12 with the arc of curvature of the curved ends 18 substantially matching the curvature of the upper collar 12. Thus, the upper collar 12 and the lower collar 14 may have substantially equivalent effective outer diameters.

    [0010] In the illustrated exemplary construction the upper collar 12 and the lower collar 14 are spaced apart from one another by an integral hollow neck 20 with a substantially circular outer perimeter. As best seen through joint reference to FIGS. 2 and 3, in the exemplary construction the outer diameter of the neck 20 is less than the outer diameter of the upper collar 12 and less than the length dimension "L" of the lower collar 14. The upper collar 12, the lower collar 14 and the intermediate neck 20 may thereby form a generally "I" shaped length dimension profile along the lateral sides of the grommet 10 (FIG. 3). As best seen in FIG. 2, in the exemplary configuration, the outer diameter of the neck 16 may be substantially equivalent to the width dimension "W" of the lower collar 14 to define a generally "T" shaped length dimension profile at the ends of the grommet 10. Thus the profile of the grommet 10 is nonuniform.

    [0011] In the illustrated exemplary construction, an axial bore 22 extends the full length of the grommet 10 passing through the upper collar 12, the neck 20 and the lower collar 14. As shown, the axial bore 22 may have a variable diameter along its length with slightly enhanced diameters adjacent the openings in both the upper collar 12 and the lower collar 14. In this construction, the enhanced diameter of the through axial bore 22 in the lower collar 14 defines a radial shoulder 24.

    [0012] Referring now to FIG. 5, the grommet 10 is adapted to capture and retain a sleeve insert 26 such that the combination of the grommet 10 and the sleeve insert 26 defines a grommet assembly. The sleeve insert 26 may be formed from metal, structural plastic or other material as may be desired. Stamped metal such as steel or the like may be particularly desirable in many environments of use. As shown, in the illustrated exemplary construction, the sleeve insert may include a hollow stem 28 with an annular flange 30 surrounding the top or proximal end of the stem. The stem 28 of the sleeve insert 26 may include a flared lower end defining a radial lip 32 which engages the shoulder 24 at the interior of the grommet to block withdrawal of the stem 28 after it is pushed into the axial bore 22. In this regard, it will be understood that during insertion of the stem 28, the elastomeric material forming the grommet 10 may deform in a resilient manner to permit passage of the radial lip 32. Upon full insertion, the radial lip 32 will then snap behind the shoulder 24 such that withdrawal of the sleeve insert is substantially blocked.

    [0013] As shown in FIG. 5, in accordance with one exemplary practice, a bolt 40 or other elongated fastening element may be inserted into the hollow stem 28 from an insertion position at one end of the grommet. By way of example only, and not limitation, the bolt 40 may include a threaded end 42, a tool-engaging head 44, and a non-threaded portion between the head and the threads. As illustrated, the stem 28 of the sleeve insert may include a radially inwardly projecting detent 48 adapted to snap behind an upper surface of an enhanced diameter ring 50 at the intersection between the threaded end and the non-threaded portion of the bolt. In this condition, the bolt 40 may be floatingly captured in the stem 28 such that it may be rotated with ease, but does not fall out. As will be appreciated, such an arrangement may facilitate pre-assembly of the bolt 40 with the grommet 10 for shipment to a point of final assembly.

    [0014] FIG. 6 illustrates the underside of an exemplary retaining panel 60 such as an engine cover or the like adapted for use with the exemplary grommet assembly of FIGS. 1-5 in a manner consistent with the present disclosure. As shown, the exemplary retaining panel includes an access opening 62 in the form of a slotted hole having a size and shape corresponding substantially to the perimeter of the lower collar 14 of the grommet 10. As shown, the underside of the retaining panel may also be provided with a pair of molded-in raised stops 64 disposed in substantially diagonal relation to one another on opposite sides of the access opening 62. In the illustrated exemplary construction, the raised stops are oriented approximately 180 degrees from one another at positions generally at the intersections between substantially straight lateral sides 66 and curved ends 68. In the illustrated exemplary construction, lead-in ramps 70 may extent generally along the edges of the lateral sides 66. In this construction the elevation of the lead-in ramps 70 progressively increases as they approach the raised stops 64.

    [0015] Referring now jointly to FIGS. 6-8, it will be understood that during use, the lower collar 14 may be inserted in substantially aligned relation into the access opening 62 in the retaining panel 60 until further insertion is blocked by the interference between the retaining panel 60 and the upper collar 12 due to the inability of the upper collar 12 to enter the access opening. As will be appreciated, once the lower collar 14 has been inserted, the retaining panel 60 is disposed in sandwiched relation between the upper collar 12 and the lower collar 14 and the neck 20 is disposed at the interior of the access opening 62.

    [0016] In the initial aligned insertion condition, the grommet 10 remains rotatable relative to the retaining panel 60. Thus, following insertion of the lower collar 14 into the access opening 62, the grommet 10 may be rotated relative to the retaining panel 60 to form a locking engagement (FIG. 7). In this locked condition, with the grommet rotated approximately 90 degrees, a blocking relation is established thereby preventing outward withdrawal through the access opening 62. The raised stops 64 may promote a proper degree of relative rotation while avoiding the possibility of over-rotation.

    [0017] As illustrated in FIG. 7, in the locked condition the lower collar 14 is disposed in only partial surrounding relation to the access opening 62. However, the upper collar 12 may be disposed in substantially full covering relation to the access opening 62 due to its larger diameter. In the exemplary construction, the lead-in ramps 70 promote tightening as rotation takes place thereby placing the upper collar 12 and the lower collar 14 into a state of compression against the retaining panel 60 and further enhancing a secure engagement between the grommet 10 and the retaining panel 60.

    [0018] Referring now jointly to FIGS. 5 and 8, it will be understood that the establishment of the secure connection between the grommet 10 and the retaining panel 60 does not restrict rotation of the bolt 40. Thus, the bolt 40 may readily engage an underlying substructure (not shown) such as an engine block in mating bolted relation in a manner as will be well known to those of skill in the art.

    [0019] As indicated previously, it is also contemplated that a grommet assembly consistent with the present disclosure may be adapted to support a female connection member such as a receiving nut or the like rather than the bolt as previously illustrated. Referring now to FIGS. 9 and 10, a second embodiment consistent with the present disclosure is illustrated wherein elements corresponding to those described previously are designated by like reference numerals within a 100 series. As will be understood, in this exemplary embodiment, the grommet 110 and the sleeve insert 128 may have substantially the same structure as previously described. However, a substantially annular retainer 180 of elastomeric material may secure a flange nut 182 in place in substantially coaxial relation to the axial bore 122. In particular, in the illustrated exemplary construction, the annular retainer 180 may include a hooking edge 184 adapted to hook under the perimeter of the flange 130. A deformable compression foot 186 is disposed along the inner diameter of the retainer and is adapted to act in continuous biasing relation against a flared base 188 of the flange nut. 182.

    [0020] As will be readily appreciated, in the illustrated arrangement, the axial channel 190 in the flange nut is arranged in substantially aligned relation to the axial bore 122. Accordingly, a male connection member such as a bolt or the like (not shown) may extend upwardly through the sleeve insert and into the flange nut 182 to engage threads therein. In this arrangement, the flange nut 182 can nonetheless be rotated relative to the deformable compression foot of the annular retainer 180 as may be desired to establish a connection with the male member.

    [0021] While various spatial and directional terms, such as upper, horizontal, vertical, front and the like may used to describe embodiments of the present invention, it is understood that such terms are merely used with respect to the orientations shown in the drawings. The orientations may be inverted, rotated, or otherwise changed, such that an upper portion is a lower portion, and vice versa, horizontal becomes vertical, and the like.

    [0022] Of course, variations and modifications of the foregoing are within the scope of the present disclosure. It is understood that the disclosure which is disclosed and defined herein extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present disclosure. The embodiments described herein explain the best modes known for practicing the disclosure and will enable others skilled in the art to utilize the disclosure. The claims are to be construed to include alternative embodiments to the extent permitted by the prior art.


    Claims

    1. A connection assembly adapted for receipt of a male connection member (40) at the interior of a grommet (10) for operative attachment of a retaining panel (60) to a substructure, the connection assembly comprising:

    the variable profile grommet (10) of hollow unitary construction formed from elastomeric material comprising a first collar (12) having a first effective diameter, a second collar (14) disposed in spaced-apart relation from the first collar (12), the second collar (14) being of substantially non-circular geometry defining a second effective diameter, the grommet (10) further comprising a neck (20) extending between the first collar (12) and the second collar (14), and wherein an axial bore (22) extends entirely through the grommet (10);

    a sleeve insert (26) comprising a hollow stem (28) extending from a point of insertion on one side of the grommet (10) into the axial bore (22) so as to at least partially line the axial bore (22), the stem (28) comprising a proximal end and a distal end, the sleeve insert (26) further comprising an annular flange (30) extending radially outwardly away from the proximal end of the stem (28), the annular flange (30) having a diameter greater than the axial bore (22) at the point of insertion; and

    the retaining panel (60) including a substantially non-circular access opening (62) adapted to receive the second collar (14) in pass-through relation when the second collar (14) is aligned with the access opening (62), the access opening (62) being further adapted to block the first collar (12) against pass-through insertion, and wherein upon rotation of the grommet (10) following insertion of the second collar (14), the grommet (10) is blocked against withdrawal through the access opening (62) and the retaining panel (60) is held between the first collar (12) and the second collar (14) with the second collar (14) disposed in partial surrounding relation to the access opening (62),

    characterized in that the second collar (14) has a lobe-shaped perimeter with a pair of opposing, substantially straight lateral sides (16), and that the retaining panel (60) includes a pair of raised stops (64) projecting away from the underside of the retaining panel (60) at positions outboard from the access opening (62) in adjacent relation to molded integral lead-in ramps (70), wherein the raised stops (64) project away from the underside of the retaining panel (60) to a distance greater than the height of the lead-in ramps (70) and herein upon rotation of the grommet (10) following insertion of the second collar (14), the second collar (14) travels up the lead in ramps (70) until at least one of the lateral sides (16) contacts at least one of the raised stops (64) to define a locked condition with portions of the access opening (62) adjacent to the lateral sides (16) remaining uncovered by the second collar (14).


     
    2. The connection assembly as recited in Claim 1, further comprising an elongate bolt (40) projecting into the stem (28), the bolt including a head (44) disposed in overlying relation to the first collar (12) and a distal end projecting outwardly beyond the second collar (14).
     
    3. The connection assembly as recited in Claim 2, wherein the sleeve insert (26) further comprises a radially inwardly projecting detent (48) adapted to hold the bolt (40) within the sleeve insert (26).
     
    4. The connection assembly as recited in Claim 1, further comprising a flange nut (182) disposed in aligned relation to the axial bore (22; 122) in overlying relation to the first collar (12; 112).
     
    5. The connection assembly as recited in Claim 4, wherein an annular retainer ring (180) extends between the annular flange (30; 130) and a flared distal base (188) of the flange nut (182).
     
    6. The connection assembly as recited in Claim 5, wherein the annular retainer ring (180) includes an outer perimeter hooking edge (184) adapted for hooking engagement beneath the annular flange (30) and an inner perimeter compression foot (186) adapted to press the flared distal base towards the annular flange (30; 130).
     
    7. The connection assembly as recited in one of the preceding Claims,
    wherein the axial bore (22) has a variable diameter along its length with a first diameter within the neck (20) and a second, greater diameter within the second collar (14) to define a shoulder (24) within the second collar (14).
     
    8. The connection assembly as recited in Claim 7, wherein the axial bore (22) has a substantially "I" shaped cross section.
     
    9. The connection assembly as recited in Claim 7 or 8, wherein the distal end of the stem (28) comprises a radially outwardly projecting lip (32) having a diameter greater than the axial bore (22) within the neck (20), the lip (32) being held in underlying relation to the shoulder (24) within the second collar (14) when the stem (28) is in an inserted condition within the grommet (10).
     
    10. The connection assembly as recited in one of the preceding Claims,
    wherein the stem (28) extends in press- fit relation from a point of insertion on one side of the grommet (10) into the axial bore (22) and partially across the grommet (10) so as to line the axial bore (22) along substantially the full length of the neck (20).
     
    11. The connection assembly as recited in one of the preceding Claims,
    wherein the first collar (12) is substantially circular and the second collar (14) is characterized by the lobe-shaped perimeter with the pair of opposing substantially straight lateral sides (16) and a pair of opposing convex curved ends (18).
     
    12. The connection assembly as recited in Claim 1, wherein the retaining panel (60) comprises a pair of the molded-in ramps (70) disposed along opposing perimeter edges of the access opening (62) in adjacent relation to the raised stops (64).
     
    13. The connection assembly of one of claims 1, 2, 4 to 6, wherein the second collar (14) having a length dimension greater than a width dimension, the length dimension of the second collar (14) defining the second effective diameter, the neck (20) having a third effective diameter which is less than both the first and second effective diameters, and wherein the axial bore (22) extends entirely through the grommet (10) along a path extending through the first collar (12), the neck (20) and the second collar (14);
    wherein the sleeve insert (26) comprising the hollow stem (28) extending in press-fit relation from a point of insertion on one side of the grommet (10) into the axial bore (22) and partially across the grommet (10) so as to line the axial bore (22) along the full length of the neck (20), the distal end of the stem (28) comprising a radially outwardly projecting lip (32) having a diameter greater than the axial bore (22) within the neck (20), the sleeve insert (26) further including a radially inwardly projecting detent (48) adapted to hold the male connection member within the stem (28) while permitting relative rotation between the male connection member and the sleeve insert (26).
     
    14. The connection assembly of claim 13, wherein the variable profile grommet (10) is formed from a rubber elastomeric material, the second collar (14) having the lobe-shaped perimeter with the pair of opposing substantially straight lateral sides and a pair of opposing convex curved ends, the second collar (14) having the length dimension measured between opposing apex positions on the curved ends which is greater than the width dimension measured between opposing positions on the lateral sides, the length dimension of the second collar (14) defining the second effective diameter which is substantially equivalent to the first effective diameter; and
    the retaining panel (60) including the substantially non-circular access opening (62) of a size and shape substantially matching the perimeter geometry of the second collar (14).
     


    Ansprüche

    1. Verbindungsanordnung, die geeignet ist, ein Einschraubverbindungselement (40) in dem Innenbereich einer Tülle (10) zur Wirkanbringung einer Halteplatte (60) an einem Unterbau aufzunehmen, wobei die Verbindungsanordnung Folgendes umfasst:

    die über ein veränderliches Profil verfügende Hülle (10) einer hohlen einheitlichen Konstruktion, die aus einem elastomeren Material ausgebildet ist und eine einen ersten effektiven Durchmesser aufweisende erste Überschiebmuffe (12) und eine in beabstandetem Bezug zu der ersten Überschiebmuffe (12) angeordnete zweite Überschiebmuffe (14) aufweist, wobei die zweite Überschiebmuffe (14) eine im Wesentlichen nicht kreisrunde Geometrie aufweist, die einen zweiten effektiven Durchmesser festlegt, wobei die Tülle (10) ferner einen Stutzen (20) umfasst, der sich zwischen der ersten Überschiebmuffe (12) und der zweiten Überschiebmuffe (14) erstreckt, und wobei sich eine axiale Bohrung (22) vollständig durch die Tülle (10) erstreckt,

    einen Hülseneinsatz (26), der einen hohlen Schaft (28) umfasst, der sich von einem Einsetzpunkt auf einer Seite der Tülle (10) in die axiale Bohrung (22) erstreckt, um wenigstens zum Teil die axiale Bohrung (22) auszukleiden, wobei der Schaft (28) ein nahe gelegenes Ende und ein entfernt gelegenes Ende umfasst, wobei der Hülseneinsatz (26) ferner einen ringförmigen Flansch (30) umfasst, der sich weg von dem nahe gelegenen Ende des Schafts (28) radial nach außen erstreckt, wobei der ringförmige Flansch (30) einen Durchmesser aufweist, der größer als die axiale Bohrung (22) an dem Einsetzpunkt ist, und

    wobei die Halteplatte (60) eine im Wesentlichen nicht kreisrunde Zugangsöffnung (62) enthält, die geeignet ist, die zweite Überschiebmuffe (14) in Durchgängigkeitsbezug aufzunehmen, wenn die zweite Überschiebmuffe (14) in einer Linie mit der Zugangsöffnung (62) ausgerichtet ist, wobei die Zugangsöffnung (62) ferner geeignet ist, die erste Überschiebmuffe (12) gegen einen Durchgängigkeitseinsatz zu blockieren, und wobei bei einer Drehung der Tülle (10) nach dem Einsetzen der zweiten Überschiebmuffe (14) die Tülle (10) gegen eine Entnahme durch die Zugangsöffnung (62) blockiert ist und die Halteplatte (60) zwischen der ersten Überschiebmuffe (12) und der zweiten Überschiebmuffe (14) gehalten ist, während die zweite Überschiebmuffe (14) in einem zum Teil umgebenden Bezug zu der Zugangsöffnung (62) angeordnet ist,

    dadurch gekennzeichnet, dass die zweite Überschiebmuffe (14) einen keulenförmigen Umfang mit einem Paar von sich gegenüberliegenden, im Wesentlichen geraden lateralen Seiten (16) aufweist und dass die Halteplatte (60) ein Paar von erhöhten Anschlägen (64) enthält, die weg von der Unterseite der Halteplatte (60) an Positionen außerhalb der Zugangsöffnung (62) in angrenzendem Bezug zu ausgeformten einstückigen Einführungsrampen (70) vorstehen, wobei die erhöhten Anschläge (64) weg von der Unterseite der Halteplatte (60) in einem Abstand, der größer als die Höhe der Einführungsrampen (70) ist, vorstehen und dabei bei einer Drehung der Tülle (10) nach dem Einsetzen der zweiten Überschiebmuffe (14) die zweite Überschiebmuffe (14) an den Einführungsrampen (70) nach oben fährt, bis wenigstens eine der lateralen Seiten (16) wenigstens einen der erhöhten Anschläge (64) berührt, um einen verriegelten Zustand mit Abschnitten der Zugangsöffnung (62) angrenzend an die lateralen Seiten (16) festzulegen, die von der zweiten Überschiebmuffe (14) unverdeckt bleiben.


     
    2. Verbindungsanordnung nach Anspruch 1, die ferner einen länglichen Bolzen (40), der in den Schaft (28) vorsteht, umfasst, wobei der Bolzen einen Kopf (44) enthält, der in überlagerndem Bezug zu der ersten Überschiebmuffe (12) angeordnet ist, und ein entfernt gelegenes Ende über die zweite Überschiebmuffe (14) hinaus nach außen vorsteht.
     
    3. Verbindungsanordnung nach Anspruch 2, wobei der Hülseneinsatz (26) ferner eine radial nach innen vorstehende Arretierung (48) umfasst, die geeignet ist, den Bolzen (40) in dem Hülseneinsatz (26) zu halten.
     
    4. Verbindungsanordnung nach Anspruch 1, die ferner eine Flanschmutter (182) umfasst, die in ausgerichtetem Bezug zu der axialen Bohrung (22; 122) in überlagerndem Bezug zu der ersten Überschiebmuffe (12; 112) angeordnet ist.
     
    5. Verbindungsanordnung nach Anspruch 4, wobei sich ein kranzförmiger Haltering (180) zwischen dem ringförmigen Flansch (30; 130) und einer aufgebördelten entfernt gelegenen Basis (188) der Flanschmutter (182) erstreckt.
     
    6. Verbindungsanordnung nach Anspruch 5, wobei der kranzförmige Haltering (180) einen den Außenumfang einhakenden Rand (184), der zu einem einhakenden Eingriff unter dem ringförmigen Flansch (30) geeignet ist, und einen Innenumfangskompressionsfuß (186), der geeignet ist, die aufgebördelte entfernt gelegene Basis hin zu dem ringförmigen Flansch (30; 130) zu drücken, enthält.
     
    7. Verbindungsanordnung nach einem der vorhergehenden Ansprüche, wobei die axiale Bohrung (22) entlang ihrer Länge einen veränderlichen Durchmesser mit einem ersten Durchmesser in dem Stutzen (20) und einem zweiten größeren Durchmesser in der zweiten Überschiebmuffe (14) aufweist, um eine Schulter (24) in der zweiten Überschiebmuffe (14) festzulegen.
     
    8. Verbindungsanordnung nach Anspruch 7, wobei die axiale Bohrung (22) einen im Wesentlichen "I"-förmigen Querschnitt aufweist.
     
    9. Verbindungsanordnung nach Anspruch 7 oder 8, wobei das entfernt gelegene Ende des Schafts (28) eine radial nach außen vorstehende Lippe (32) umfasst, die einen Durchmesser aufweist, der größer als die axiale Bohrung (22) in dem Stutzen (20) ist, wobei die Lippe (32) in unterlagerndem Bezug zu der Schulter (24) in der zweiten Überschiebmuffe (14) gehalten ist, wenn sich der Schaft (28) in einem eingesetzten Zustand in der Tülle (10) befindet.
     
    10. Verbindungsanordnung nach einem der vorhergehenden Ansprüche, wobei sich der Schaft (28) in eingepresstem Bezug von einem Einsetzpunkt auf einer Seite der Tülle (10) in die axiale Bohrung (22) und zum Teil über die Tülle (10) hinweg erstreckt, um die axiale Bohrung (22) im Wesentlichen entlang der gesamten Länge des Stutzens (20) auszukleiden.
     
    11. Verbindungsanordnung nach einem der vorhergehenden Ansprüche, wobei die erste Überschiebmuffe (12) im Wesentlichen kreisrund ist und die zweite Überschiebmuffe (14) durch den keulenförmigen Umfang mit dem Paar von sich gegenüberliegenden, im Wesentlichen geraden lateralen Seiten (16) und einem Paar von sich gegenüberliegenden konvexen bogenförmigen Enden (18) gekennzeichnet ist.
     
    12. Verbindungsanordnung nach Anspruch 1, wobei die Halteplatte (60) ein Paar der eingeformten Rampen (70) umfasst, die entlang sich gegenüberliegenden Umfangsrändern der Zugangsöffnung (62) in angrenzendem Bezug zu den erhöhten Anschlägen (64) angeordnet sind.
     
    13. Verbindungsanordnung nach einem der Ansprüche 1, 2, 4 bis 6, wobei die zweite Überschiebmuffe (14) eine Längenabmessung aufweist, die größer als eine Breitenabmessung ist, wobei die Längenabmessung der zweiten Überschiebmuffe (14) den zweiten effektiven Durchmesser festlegt, wobei der Stutzen (20) einen dritten effektiven Durchmesser aufweist, der sowohl kleiner als der erste als auch der zweite effektive Durchmesser ist, und wobei sich die axiale Bohrung (22) vollständig durch die Tülle (10) entlang einem Weg erstreckt, der sich durch die erste Überschiebmuffe (12), den Stutzen (20) und die zweite Überschiebmuffe (14) erstreckt, wobei der Hülseneinsatz (26) den hohlen Schaft (28) umfasst, der sich in eingepresstem Bezug von einem Einsetzpunkt auf einer Seite der Tülle (10) in die axiale Bohrung (22) und zum Teil über die Tülle (10) hinweg erstreckt, um die axiale Bohrung (22) entlang der gesamten Länge des Stutzens (20) auszukleiden, wobei das entfernt gelegene Ende des Schafts (28) eine radial nach außen vorstehende Lippe (32) umfasst, die einen Durchmesser aufweist, der größer als die axiale Bohrung (22) in dem Stutzen (20) ist, wobei der Hülseneinsatz (26) ferner eine radial nach innen vorstehende Arretierung (48) umfasst, die geeignet ist, das Einschraubverbindungselement in dem Schaft (28) zu halten, während sie eine relative Drehung zwischen dem Einschraubverbindungselement und dem Hülseneinsatz (26) erlaubt.
     
    14. Verbindungsanordnung nach Anspruch 13, wobei die über ein veränderliches Profil verfügende Tülle (10) aus einem elastomeren Gummimaterial gebildet ist, wobei die zweite Überschiebmuffe (14) den keulenförmigen Umfang mit dem Paar von sich gegenüberliegenden, im Wesentlichen geraden lateralen Seiten und einem Paar von sich gegenüberliegenden konvexen bogenförmigen Enden aufweist, wobei die zweite Überschiebmuffe (14) die Längenabmessung aufweist, die zwischen sich gegenüberliegenden Scheitelpunktpositionen an den bogenförmigen Enden gemessen ist und größer als die Breitenabmessung ist, die zwischen sich gegenüberliegenden Positionen auf den lateralen Seiten gemessen ist, wobei die Längenabmessung der zweiten Überschiebmuffe (14) den zweiten effektiven Durchmesser festlegt, der im Wesentlichen gleich dem ersten effektiven Durchmesser ist, und wobei die Halteplatte (60) die im Wesentlichen nicht kreisrunde Zugangsöffnung (62) enthält, die eine Größe und Form aufweist, die im Wesentlichen der Umfangsgeometrie der zweiten Überschiebmuffe (14) entsprechen.
     


    Revendications

    1. Ensemble de connexion conçu pour recevoir un élément de connexion mâle (40) à l'intérieur d'un oeillet (10) pour la fixation opérationnelle d'un panneau de retenue (60) à une sous-structure, l'ensemble de connexion comprenant :

    l'oeillet (10) à profil variable de construction unitaire creuse formé en un matériau élastomère comprenant un premier collier (12) ayant un premier diamètre effectif, un second collier (14) disposé dans une relation éloignée par rapport au premier collier (12), le second collier (14) étant d'une géométrie sensiblement non circulaire définissant un deuxième diamètre effectif, l'oeillet (10) comprenant en outre un cou (20) s'étendant entre le premier collier (12) et le second collier (14), et un alésage axial (22) s'étendant entièrement à travers l'oeillet (10) ;

    un insert de manchon (26) comprenant une tige creuse (28) s'étendant d'un point d'insertion sur un côté de l'oeillet (10) dans l'alésage axial (22) de sorte à au moins partiellement recouvrir l'alésage axial (22), la tige (28) comprenant une extrémité proximale et une extrémité distale, l'insert de manchon (26) comprenant en outre une bride annulaire (30) s'étendant radialement vers l'extérieur à l'opposé de l'extrémité proximale de la tige (28), la bride annulaire (30) ayant un diamètre plus grand que l'alésage axial (22) au point d'insertion ; et

    le panneau de retenue (60) comprenant une ouverture d'accès (62) sensiblement non circulaire conçue pour recevoir le second collier (14) dans une relation traversante lorsque le second collier (14) est aligné avec l'ouverture d'accès (62), l'ouverture d'accès (62) étant en outre conçue pour bloquer l'insertion traversante du premier collier (12), et lors de la rotation de l'oeillet (10) après l'insertion du second collier (14), le retrait de l'oeillet (10) à travers l'ouverture d'accès (62) étant bloqué et le panneau de retenue (60) étant maintenu entre le premier collier (12) et le second collier (14) avec le second collier (14) disposé dans une relation d'enveloppement partiel par rapport à l'ouverture d'accès (62),

    caractérisé en ce que le second collier (14) a un périmètre en forme de lobe avec une paire de côtés latéraux (16) sensiblement droits opposés, et en ce que le panneau de retenue (60) comprend une paire de butées surélevées (64) faisant saillie à l'opposé du côté inférieur du panneau de retenue (60) à des positions extérieures à l'ouverture d'accès (62) dans une relation de proximité par rapport à des rampes d'entrée (70) intégrées moulées, les butées surélevées (64) faisant saillie à l'opposé du côté inférieur du panneau de retenue (60) à une distance supérieure à la hauteur des rampes d'entrée (70) et lors de la rotation de l'oeillet (10) après l'insertion du second collier (14), le second collier (14) parcourant les rampes d'entrée (70) jusqu'à ce qu'au moins l'un des côtés latéraux (16) soit en contact avec au moins l'une des butées surélevées (64) pour définir un état verrouillé avec des parties de l'ouverture d'accès (62) adjacente aux côtés latéraux (16) restant non couvertes par le second collier (14).


     
    2. Ensemble de connexion selon la revendication 1, comprenant en outre un boulon allongé (40) faisant saillie dans la tige (28), le boulon comprenant une tête (44) disposée dans une relation de chevauchement par rapport au premier collier (12) et une extrémité distale faisant saillie vers l'extérieur au-delà du second collier (14).
     
    3. Ensemble de connexion selon la revendication 2, l'insert de manchon (26) comprenant en outre un ergot (48) faisant saillie radialement vers l'intérieur conçu pour tenir le boulon (40) dans l'insert de manchon (26).
     
    4. Ensemble de connexion selon la revendication 1, comprenant en outre un écrou à bride (182) disposé dans une relation d'alignement par rapport à l'alésage axial (22 ; 122) dans une relation de chevauchement par rapport au premier collier (12 ; 112).
     
    5. Ensemble de connexion selon la revendication 4, une bague de retenue annulaire (180) s'étendant entre la bride annulaire (30 ; 130) et une base distale évasée (188) de l'écrou à bride (182).
     
    6. Ensemble de connexion selon la revendication 5, la bague de retenue annulaire (180) comprenant un bord d'accrochage périphérique externe (184) conçu pour venir en prise par crochet sous la bride annulaire (30) et un pied de compression périphérique interne (186) conçu pour presser la base distale évasée vers la bride annulaire (30 ; 130).
     
    7. Ensemble de connexion selon l'une des revendications précédentes, l'alésage axial (22) ayant un diamètre variable sur sa longueur avec un premier diamètre dans le cou (20) et un deuxième diamètre plus grand dans le second collier (14) pour définir un épaulement (24) dans le second collier (14).
     
    8. Ensemble de connexion selon la revendication 7, l'alésage axial (22) ayant une section transversale sensiblement en forme de « I ».
     
    9. Ensemble de connexion selon la revendication 7 ou 8, l'extrémité distale de la tige (28) comprenant une lèvre (32) faisant saillie radialement vers l'extérieur ayant un diamètre plus grand que l'alésage axial (22) dans le cou (20), la lèvre (32) étant maintenue dans une relation sous-jacente par rapport à l'épaulement (24) dans le second collier (14) lorsque la tige (28) est dans un état inséré dans l'oeillet (10).
     
    10. Ensemble de connexion selon l'une des revendications précédentes, la tige (28) s'étendant dans une relation d'ajustement pressé à partir d'un point d'insertion sur un côté de l'oeillet (10) dans l'alésage axial (22) et partiellement à travers l'oeillet (10) de sorte à recouvrir l'alésage axial (22) sensiblement sur toute la longueur du cou (20).
     
    11. Ensemble de connexion selon l'une des revendications précédentes, le premier collier (12) étant sensiblement circulaire et le second collier (14) étant caractérisé par le périmètre en forme de lobe avec la paire de côtés latéraux (16) sensiblement droits opposés et une paire d'extrémités courbes convexes opposées (18).
     
    12. Ensemble de connexion selon la revendication 1, le panneau de retenue (60) comprenant une paire de rampes moulées (70) disposées le long de bords périphériques opposés de l'ouverture d'accès (62) dans une relation de proximité par rapport aux butées surélevées (64).
     
    13. Ensemble de connexion selon l'une quelconque des revendications 1, 2, 4 à 6, le second collier (14) ayant une dimension de longueur plus grande qu'une dimension de largeur, la dimension de longueur du second collier (14) définissant le deuxième diamètre effectif, le cou (20) ayant un troisième diamètre effectif qui est inférieur à la fois au premier et au deuxième diamètres effectifs, et l'alésage axial (22) s'étendant entièrement à travers l'oeillet (10) le long d'un chemin s'étendant à travers le premier collier (12), le cou (20) et le second collier (14) ;
    l'insert de manchon (26) comprenant la tige creuse (28) s'étendant dans une relation d'ajustement pressé à partir d'un point d'insertion sur un côté de l'oeillet (10) dans l'alésage axial (22) et partiellement à travers l'oeillet (10) de sorte à recouvrir l'alésage axial (22) sur toute la longueur du cou (20), l'extrémité distale de la tige (28) comprenant une lèvre (32) faisant saillie radialement vers l'extérieur ayant un diamètre plus grand que l'alésage axial (22) dans le cou (20), l'insert de manchon (26) comprenant en outre un ergot (48) faisant saillie radialement vers l'intérieur conçu pour tenir l'élément de connexion mâle dans la tige (28) tout en permettant une rotation relative entre l'élément de connexion mâle et l'insert de manchon (26).
     
    14. Ensemble de connexion selon la revendication 13, l'oeillet (10) à profil variable étant formé en un matériau élastomère caoutchouc, le second collier (14) ayant le périmètre en forme de lobe avec la paire de côtés latéraux sensiblement droits opposés et une paire d'extrémités courbes convexes opposées, le second collier (14) ayant la dimension de longueur mesurée entre des positions de sommet opposées sur les extrémités courbes qui est supérieure à la dimension de largeur mesurée entre des positions opposées sur les côtés latéraux, la dimension de longueur du second collier (14) définissant le deuxième diamètre effectif qui est sensiblement équivalent au premier diamètre effectif ; et
    le panneau de retenue (60) comprenant l'ouverture d'accès (62) sensiblement non circulaire ayant une dimension et une forme correspondant sensiblement à la géométrie du périmètre du second collier (14).
     




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    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description