• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a fastener for attaching structural elements having aligned bores having a nominal diameter (D), the fastening comprising a minimum clamping plane (Gmin) and a maximum clamping plane (Gmax), and - a screw ( 12) comprising an enlarged head and a threaded portion (22), - a bushing (30) comprising an enlarged head, a cylindrical tubular body and a threaded portion (36) engaging the threaded portion (22) of the screw, the tapped portion (36) being adjacent to an internally smooth portion of the body (34) of the sleeve, said smooth portion having a thickness (E), a low deformable zone (A) adjacent to the head of the sleeve and a deformable zone (B) adjacent to the low deformable zone (A), the deformable zone (B) of the sleeve can deform into a bulb (48) intended to come into contact with a blind face (46) of the structural elements. The deformable zone (B) extends over a length (L) greater than a minimum length (Lmin) and less than a maximum length (Lmax), such that: Lmin = D / 2 + 2E + (Gmax - Gmin), Lmax = (E / 0,092) The invention is particularly applicable to the assembly of aircraft structures.
    公开号:FR3037369A1
    申请号:FR1555313
    申请日:2015-06-11
    公开日:2016-12-16
    发明作者:Antoine Villet；Nicolas Naretto；Olivier Gay
    申请人:LISI Aerospace SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a fastener that is installed through structures on one side of the assembly, commonly referred to as the "accessible" side. This type of fasteners is used for example in the assembly of structures of an aircraft. In particular, the present invention relates to a fastener for fastening structural members having aligned bores having a nominal diameter D, the elements having a nominal thickness varying between a minimum thickness and a maximum thickness, the fastener comprising a minimum clamping plane. Gmin and a maximum clamping plane Gmax, and 15 - a screw comprising a head enlarged at one end and a threaded portion at an opposite end, - a sleeve comprising an enlarged head adapted to receive the head of the screw and intended to come to the contact with a first face of the structural members, a tubular body and a threaded portion engaging the threaded portion of the screw, the threaded portion being adjacent to an internally smooth portion of the sleeve body, said smooth portion having a nominal thickness E, a zone with little deformability adjacent to the head of the sleeve and a deformable zone adjacent to the zone of low deformability, the deformable zone of the bushing has a weakened resistance with respect to the resistance of the zone of low deformability in order to facilitate the radial deformation of the deformable portion into a bulb intended to come into contact with a face. elements of structure opposite to the first face, commonly called "blind" face. This type of fastening is known, for example, from US Pat. No. 3,236,143, the fastener further comprising a frangible gripping element at a rupture groove. Another fixing without breaker head of the aforementioned type is described in the document US5725341.
    [0002] 3037369 2 Aircraft structures increasingly include composite materials that present delamination risks when subjected locally to significant compressive forces. To avoid delaminating the composite, the outer diameter of the bulb of a blind fastener should not be too small compared to the nominal diameter D of the bore in which the fastener is inserted. Furthermore, the bulb of such a fastener must have a uniform range and must imperatively be formed repetitively, the minimum thickness of the structure as the maximum thickness. The assurance of a properly formed bulb of sufficient size is mandatory when it is not possible to inspect the blind side of the structure. The object of the invention is to solve the disadvantages of the fasteners of the prior art, and in particular to provide a fastener which makes it possible to form a bulb with an outside diameter equal to one and a half times the nominal diameter of the drilling of the structure and whose The shape is uniform and repeatable, and therefore stable, whatever the thickness of the structure to be clamped with a given nominal thickness varying between a minimum thickness and a maximum thickness. For this, the attachment according to the invention is of the aforementioned type, such that the deformable zone extends over a length which is greater than a minimum length Lmin and less than a maximum length Lmax, the minimum and maximum lengths being defined by the relations: Lmin = D / 2 + 2E + (Gmax - Gmin), {1} Lmax = (E / 0,092) {2} a beginning of the deformable zone (B) being arranged at a distance, measured from the enlarged head ( 32) of the sleeve (30), less than or equal to the distance of the minimum clamping plane (Gmin) of the fastener (10). Such a fixation has the advantage of forming large and stable bulbs. The fastening according to the invention also preferably has at least one of the following characteristics: the weakening of the resistance of the deformable zone is obtained by a local reduction of the hardness, the weakening of the resistance of the deformable zone is obtained by a reduction in the nominal thickness of the tubular body, the sleeve is a type A286 stainless steel, the deformable zone has a hardness of less than or equal to 220 HV, the attachment has a diameter of 6, 32 mm, a nominal tubular body thickness of 0.75 mm and a deformable zone with a length of between 6.67 mm and 8.152 mm, the attachment has a diameter of 4.80 mm, a nominal tubular body thickness of 0, 58 mm and a deformable zone of length between 5.55 mm and 6.304 mm, the sleeve comprises a titanium or a titanium alloy. Other objects, features and advantages of the invention will become apparent from the description of exemplary embodiments of the invention, with reference to the drawings in which: FIG. 1 is an isometric view of a fixation according to one embodiment of the invention, in an un-installed state, - Figure 2 is a sectional view of a fastener according to one embodiment of the invention, in an un-installed state, - Figure 3 Fig. 5 is a sectional view of a fastener according to an embodiment of the invention, in an installed state and forming a bulb, - Figs. 4A and 4B are views of incorrectly shaped bulbs, - Fig. 5 is a representation. graph of the hardness gradient according to the length of the socket of the fastener according to one embodiment of the invention.
    [0003] To facilitate the reading of the drawings, only the elements necessary for understanding the invention have been shown. The same elements bear the same references from one drawing to another. The dimensions given in the rest of the description are considered nominal. A tolerance of, for example, 0.1 mm may be applied to all or some of these dimensions in accordance with standard mechanical design practices.
    [0004] With reference to FIGS. 1 to 3, a fastener 10 according to one embodiment of the invention comprises a screw 12 and a sleeve 30. The screw 12 comprises a gripping element 14, a rupture groove 16, a head 18 milled, a cylindrical barrel 20 and a threaded portion 22.
    [0005] The rupture groove 16 is dimensioned so as to have the smallest diameter of the screw 12, capable of supporting a given tensile stress of installation, and breaking under a given torsional stress. The screw 12 is inserted with a small clearance in the sleeve 30 which comprises an enlarged flange 32 adapted to receive the milled head 18 of the screw 10 and a tubular shaft 34. Before installation of the fastener 10 in a structure, the outer surface of the tubular portion 34 is cylindrical. The tubular shaft 34 has at one end opposite the flange a threaded portion 36 and, between the flange and the threaded portion, a portion whose inner surface 38 is cylindrical and smooth, that is to say not tapped. In the example of Figure 2, the nominal wall thickness E of the tubular shaft is constant. The thread of the screw 12 and the thread of the bushing 30 are complementary. These are, for example nets conforming to the AS8879 standard, commonly used for aeronautical fasteners. The length of the fastener 10 is a function of a thickness of 20 structures to be assembled, the nominal thickness of which varies between a minimum thickness and a maximum thickness. The nominal thickness range of the structure conventionally varies in steps of 1/16 "(1.5875 mm), thus the fastener 10 has a minimum clamping capacity and a maximum clamping capacity for assembling a nominal structural thickness. The plane corresponding to the minimum thickness that can be tightened is called "grip min" or "minimum clamping plane" and is referenced "Gmin" in the figures. The maximum thickness that the fastener can tighten is called the "maximum grip" or "maximum clamping plane" and is referenced as "Gmax" in the figures.On the fastener, the distances Gmax and Gmin are measured from the end of the flange. 32 when the head is milled (Figure 2), and under collar when the head is protruding.
    [0006] The overall length of the bushing 30 is divided into three successive and adjacent zones. A first zone A (FIG. 2) comprises the flange 32 and an adjacent tubular shaft portion 34 having a smooth inner surface. Zone A is not very deformable. It extends over a length 5 at most equal to the minimum thickness of structure (Gmin) that the fastener can assemble. A second zone B said deformable zone extends over the rest of the tubular shaft 34 having a smooth inner surface. The bushing zone B is intended to be deformed to form a bulb which will rely on the blind side of the structures to be assembled. To facilitate the formation of the bulb, zone B must have a weakened resistance compared to the resistance of the non-deformable zone. The weakening can be obtained by a reduction of the hardness on the deformable zone B. In this case, the hardness of the deformable zone B must be at least 20% less than the hardness of the non-deformable zone A, so that the deformation is preferably carried out in the deformable zone B, this difference depending on the material actually used. The reduction of the hardness can be obtained by local annular annealing, for example by means of an induction machine.
    [0007] The sleeve may also be formed of different materials of different hardness, welded together: the deformable zone B may be of a more deformable material than the material of the non-deformable zone A. The weakening of the resistance may also be obtained by the locally decreasing the nominal thickness of the socket, for example by means of a shoulder formed on a portion of the smooth inner surface of the socket, decreasing the thickness of the sleeve over the length of this zone. The zone B of the sleeve covers, when the fastener 10 is not installed, the remaining portion of the smooth drum 22 of the screw and a thread portion 24. The third sleeve zone C extends over the entire threaded portion 36. This zone acts as a nut. When the fastener 10 is not installed, this zone C is in contact with an end thread portion 22 of the screw 12. FIG. 3 shows the fastener 10 of FIGS. 1 and 2 in a state installed in two structures 40, 42 to assemble. The gripping element 14 has been broken at the rupture groove 16, so that only the head 18 of the screw and the flange 32 of the sleeve remain, forming together the head of the fastener, embedded. in a countersinking previously made in an accessible face 44 of the structure 40. The first zone A of the bushing 30 is entirely embedded in the structures 40, 42. The second zone B of the bushing is deformed and comprises a bulb 48, one of which face is in contact with the blind side 46 of the structure 42, opposite the accessible side 44. The voltage installed between the head of the fastener 20, 32 and the bulb 48 keeps the structures 40, 42 assembled. The third bushing zone C covers, in the installed position, a threading portion 24 of the screw adjacent to the drum 22. Advantageously, the fastening comprises a mechanical or chemical braking means to ensure the indesserability of the threads in engagement, for example by deforming tapped threads of the socket, or by adding a brake product on the threads of the screw. The fastener 10 according to the invention has an outer diameter capable of being inserted loosely into the bore of a structure having a nominal diameter D. Once the fastener 10 is deformed, the bulb 48 has an outside diameter at least equal to one. one and a half times the nominal diameter D of the hole over the entire clamping range. A properly formed bulb is illustrated in Figure 3. When the bulb is improperly formed, the risk of matting and / or the risk of delamination increases. The bulb can thus take the form of an "umbrella" (FIG. 4A) in which the bulb forms an angle α with the blind face 46. The bearing surface is significantly reduced, which leads to a risk of increased matting. Another incorrect form is the formation of a double bulb (FIG. 4B), providing a bearing surface 30 of insufficient diameter on the blind face 46. The fastener 10 is for example installed by means of a laying tool which carries out firstly pulling on the gripping element 3037369 7 14 of the screw, while maintaining the bushing 30 in the structure by pressing the flange 32 against the structure 40. The traction drives the threaded portion 22 of the screw and the tapping 36 of the sleeve to the blind face 46 of the structure. The deformation zone B 5 of the tubular shaft is deformed to create a bulb 48, one face bears against the blind face 46. In a second step, a rotational movement is printed on the screw, so that the latter is screwed into the sleeve 14 until the head 20 of the screw bears in the flange 32 of the socket.
    [0008] The last step is to finalize the installation of the fastener 10 by breaking the gripping member 14 of the screw. For this, the laying tool continues to rotate in the same direction of rotation, imposing in the structure and the screw a voltage of greater and greater. The rupture groove 16 is designed to break beyond a certain torque generating a minimum tension in the structure. The groove 16 therefore breaks once the torque threshold reached, leaving the head 20 of the flush screw to the accessible surface of the structure 40. The screw is for example titanium alloy Ti6Al4V, coated with a lubricant layer and the socket is for example stainless steel passivated type A286. The deformation zone B is obtained by local annealing. The resistance of this zone is about 550 MPa, while the resistance of the first and third zones A and C is about 1200 MPa. Other materials for the screw and the sockets can be chosen. In order to form a correctly shaped bulb of diameter equal to one and a half times the diameter of the bore, the Applicant has established that the length L of the deformable zone B should be between a minimum value and a maximum value defined by two relationships. The applicant has thus established that, to form a bulb equal to one and a half times the diameter of the bore for a given nominal thickness of structure, in the minimum to maximum thickness configurations, the length L of the deformable zone B must be greater than a minimum length Lmin according to relation {1} below: 3037369 8 Lmin = D / 2 + 2E + (Gmax - Gmin), {1} The applicant has also established that the shape of the bulb is correct and reproducible if the length L of the deformable zone B is less than a maximum length Lmax according to the relation {2} below: Lmax = (E / 0,092) {2} In the relations {1} and {2}, D is the nominal diameter of the bore in which the attachment 10 is intended to be inserted, E is the nominal thickness of the wall of the deformable zone B of the tubular shaft 34 of the sleeve 30 before deformation.
    [0009] The value of 0.092 was established by testing. Below this value, there is a risk of instability of the deformable zone that can cause the formation of "umbrella" bulbs or double bulbs of Figures 4A and 4B. The deformable zone B must start, with respect to the enlarged head 32, at most at the minimum clamping plane Gmin of the binding, that is to say at a distance measured from the enlarged head less than or equal to the distance of the minimum clamping plane Gmin measured under the same conditions. It is thus ensured that the bulb is formed on a structure having a minimum thickness. In the opposite case, there is a risk that the sleeve will not be deformed over a distance between the minimum clamping plane Gmin and the beginning of the deformable zone and, during the installation of the fastener, the bulb will be formed at distance from the blind side of the structure and will not ensure its clamping function of the structural elements.
    [0010] Beyond the maximum clamping plane Gmax of the fastener, the wall of the sleeve must be sufficiently deformable over at least the distance (D / 2 + 2E) in order to form a wide bulb of at least one and a half times the drilling diameter. When the length L of the deformable zone B does not respect the relation {2}, the bulb is no longer formed correctly. It takes for example the shape of an umbrella, or forms a double bulb.
    [0011] For example, a 6.32 mm diameter fixing intended to be inserted into a bore of nominal diameter D = 6.35 mm (8/32 ") and" grip 8 ", that is to say designed to assemble structural members having a nominal thickness of 12.70 mm (8/16 ") has a minimum clamping capacity Gmin of 10.914 mm and a maximum clamping capacity Gmax of 12.898 mm. It therefore has a clamping range of 1,984 mm (1/16 "+ 1/64") greater than the grip difference of 1/16 "in order to ensure the overlap between two consecutive thickness ranges of structure. The nominal thickness E of the bushing is chosen to be equal to 0.75 mm, in particular to ensure a compromise between the force required to deform the bushing and a sufficient screw diameter to hold the tension forces resulting from the installation of the bushing. fixation in the structure The length L of the deformable zone B must therefore be greater than: Lmin = (6.35 / 2) + 2 x 0.75 + 1.984 = 6.67 mm 15 and less than: Lmax = (0 , 75 / 0.092) = 8.152 mm In the case of fixation 10, the deformation zone B of which has undergone local annealing, the hardness must be sufficiently low from the minimum clamping plane Gmin over the length L, L being chosen between 6 , 67 mm and 8.152 mm.
    [0012] It should be noted that two fasteners 10 of the same outside diameter, with the same thickness E of sleeve but of different lengths for assembling structures of different thicknesses, can all have the same length L of deformable zone B since the dimensions allow establishing the minimum and maximum limits of this length depends only on the drilling diameter D and the sleeve thickness E. The difference between these two fasteners lies in the starting point of the deformable zone B, which will be at most in the minimum clamping plane Gmin of the fastener, the positioning of which depends on the length of the fastener. For example, for the attachment of diameter 8 previously described, table 1 indicates for several examples of nominal thicknesses to tighten the positioning of the minimum clamping plane Gmin, and the lengths Lmin and Lmax of the deformable zone B: 3037369 Table 1 Nominal thickness at Clamping plane Lengths Lmin - Lmax tighten (mm) [1/16 "] Gmin (mm) (mm) 6.35 [4] 4.564 6.67 - 8,152 7.93 [5] 6,152 6, 67 - 8,152 9,52 [6] 7,739 6,67 - 8,152 12,70 [8] 10,914 6,67 - 8,152 It is therefore possible for several fasteners of diameter 8 and of different lengths to have an identical length L.
    [0013] An example of a hardness gradient is shown in FIG. 5, with a length L of the deformable zone B chosen at 6.68 mm from the minimum clamping plane Gmin of the fastener 10. The hardness graph of FIG. a "low" plateau in the deformable zone B at about 155 HV, and two "high" plateaus at about 10 405 HV in the non-deformable zones A and C. The length of the low plateau may be less than the length L or equal. It is necessary that the level of hardness is sufficiently weak on the length L so that the zone B can be effectively deformed. Applicant has established that the deformable zone B of a stainless steel bush A286 should have a hardness less than 45% of the hardness of the non-deformable zone A. The deformable zone B is obtained for example by a local annealing, lowering the hardness of steel A286 at about 220 HV. The local annealing causes transition zones between the top plateau of the non-deformable zone A and the low plateau of the deformable zone B, and between the low plateau and the high plateau of zone C. These 20 slopes may be offset or have a different slope, as long as the deformable zone B has a length L between the minimum and maximum values defined by the relations {1} and {2}. The advantage of the material A286 is that a local annealing makes it possible to significantly reduce the hardness of the material on the annealed zone. During the deformation of the deformable zone B, the material undergoes hardening and its hardness increases again. The shaped bulb therefore has a sufficient resistance to oppose shear stresses on the bearing face of the bulb against the blind face of the structure, when the structural elements undergo stresses tending to the move away from each other.
    [0014] The starting points and slopes of the hardness values of FIG. 5 are also established taking into account the tolerances due to the annealing process, which may be of the order of 1 mm. Other materials can be used to form the socket. This may be for example one or more titanium, one or more titanium alloys or a combination of titanium and titanium alloys welded to form the socket. The interest of titanium and titanium alloys lies mainly in their low density, and good resistance to galvanic corrosion, which allows them to be installed in various materials. In another exemplary embodiment, a 4.80 15 mm diameter fixing intended to be inserted into a bore of nominal diameter D = 4.83 mm (6/32 ") to assemble a" grip 8 "structure, that is to say a structure having a nominal thickness of 12.70 mm (8/16 "), has a minimum clamping capacity Gmin of 10.914 mm and a maximum clamping capacity Gmax of 12.898 mm. It therefore has a clamping range of 1.984 mm (1/16 "+ 1/64"). The nominal thickness E of the bushing of a fixing of diameter 6 is 0.58 mm. The length L of the deformable zone B must therefore be greater than: Lmin = (4,83 / 2) + 2 x 0,58 + 1,984 = 5,55 mm And less than: Lmax = (0,58 / 0,092) = 6,304 mm 25 In the case of the fastener 10 whose sleeve is stainless steel A286, the deformation zone B of which has undergone local annealing, the hardness must be sufficiently low from the minimum clamping plane Gmin over the length L, L being chosen between 5.55 mm and 6.304 mm. The binding according to the invention is not limited structurally to the examples described above. For example, the head of the binding may be protruding instead of being milled. The gripping element can have different shapes, or not exist. In this case, the attachment is installed 3037369 12 for example by screwing only the screw into the socket, while holding the socket stationary. The screw may not include a cylindrical barrel, and include only a barrel threaded from below the head. The socket 14 may comprise two welded socket members of different materials, and compression grooves on the outer surface of the first member. Alternatively, the bushing 14 may comprise a single bushing member and an annular groove on its outer surface. Likewise, the materials of the screw and the bushing may be different from those described, the thicknesses and the hardness values of the different zones of the bushing will have to be adapted according to the materials of the bushing and the screw. As indicated previously, the resistance of the deformable zone B can be weakened by reducing the thickness of the deformable zone B over the length L, the length L to be between the minimum and maximum values defined in the relations {1} and {2}, the thickness E of the wall being the thickness of the deformable zone B.
    权利要求:
    Claims (8)
    [0001]
    REVENDICATIONS1. Fastener (10) for attaching structural members (40, 42) having aligned bores having a nominal diameter (D), the members having a nominal thickness varying between a minimum thickness and a maximum thickness, the fastener comprising a clamping plane minimum (Gmin) and a maximum clamping plane (Gmax) of these elements, and - a screw (12) comprising an enlarged head (18) at one end and a threaded portion (22) at an opposite end, - a bush ( 30) comprising an enlarged head (32) adapted to receive the head (18) of the screw and intended to come into contact with a first face of the structural elements, a cylindrical tubular body (34) adapted to receive with play the cylindrical shaft (20) of the screw and a threaded portion (36) engaging the threaded portion (22) of the screw, the threaded portion (36) being adjacent to an internally smooth portion (38) of the body (34) of the socket, said smooth portion having a nominal thickness (E), a low deformable zone (A) adjacent to the head (32) of the sleeve and a deformable zone (B) adjacent to the zone of low deformability (A), - the deformable zone (B) of the bushing has a weakened resistance with respect to the resistance of the low-deformable area (A) to facilitate the radial deformation of the deformable portion into a bulb (48) intended to come into contact with a face (46) of the elements of opposite structure at the first face, characterized in that the deformable zone (B) extends over a length (L) which is greater than a minimum length (Lmin) and less than a maximum length (Lmax), the minimum and maximum lengths ( Lmin, Lmax) being defined by the relations: Lmin = D / 2 + 2E + (Gmax - Gmin), {1} Lmax = (E / 0,092) {2} a beginning of the deformable zone (B) being arranged at a distance, measured from the enlarged head (32) of the bushing (30), less than or equal to the distance from the minimum clamping plane imum (Gmin) of the fixation (10). 3037369 14
    [0002]
    2. Fastening (10) according to claim 1, wherein the weakening of the resistance of the deformable zone (B) is obtained by a local decrease in hardness. 5
    [0003]
    3. Fastening (10) according to claim 1 wherein the weakening of the resistance of the deformable zone (B) is obtained by a local decrease in the nominal thickness (E) of the tubular body (34). 10
    [0004]
    4. Fastening (10) according to claim 2 or 3, wherein the bushing is stainless steel type A286.
    [0005]
    5. Fastener (10) according to claim 4, wherein the deformable zone (B) has a hardness less than or equal to 220 HV. 15
    [0006]
    6. Fastening (10) according to claim 5, having a diameter of 6.32 mm, a nominal thickness (E) of tubular body (34) of 0.75 mm and a deformable zone (B) of length (L) included between 6.67 mm and 8,152 mm. 20
    [0007]
    7. Fastening (10) according to claim 5, having a diameter of 4.80 mm, a nominal thickness (E) of tubular body (34) of 0.58 mm and a deformable zone (B) of length (L) included between 5.55 mm and 6.304 mm.
    [0008]
    The fastener (10) of claim 2 or 3, wherein the bushing comprises a titanium or a titanium alloy.
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    同族专利:
    公开号 | 公开日
    RU2018100399A3|2019-07-17|
    US20180238372A1|2018-08-23|
    CN107810338B|2020-10-16|
    EP3308040B1|2020-02-12|
    CA2987870A1|2016-12-15|
    EP3308040A1|2018-04-18|
    JP6885879B2|2021-06-16|
    BR112017026673A2|2018-08-14|
    WO2016198600A1|2016-12-15|
    US10690167B2|2020-06-23|
    CN107810338A|2018-03-16|
    KR20180017002A|2018-02-20|
    MX2017014489A|2018-04-10|
    RU2018100399A|2019-07-11|
    JP2018517105A|2018-06-28|
    RU2714661C2|2020-02-18|
    ES2784934T3|2020-10-02|
    FR3037369B1|2017-07-21|
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    JP5972036B2|2012-05-08|2016-08-17|ポップリベット・ファスナー株式会社|Blind nut|
    US10006478B2|2015-01-22|2018-06-26|Arconic Inc.|Blind fasteners|
    CN204784052U|2015-06-05|2015-11-18|浙江西子航空紧固件有限公司|Modified screw thread self -plugging rivet|US11152619B2|2019-06-28|2021-10-19|City University Of Hong Kong|Energy storage device and an electrode for an energy storage device|
    法律状态:
    2016-06-29| PLFP| Fee payment|Year of fee payment: 2 |
    2016-12-16| PLSC| Search report ready|Effective date: 20161216 |
    2017-06-30| PLFP| Fee payment|Year of fee payment: 3 |
    2018-06-29| PLFP| Fee payment|Year of fee payment: 4 |
    2020-06-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-06-30| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1555313A|FR3037369B1|2015-06-11|2015-06-11|INSTALLED FIXING ON SINGLE STITCH WITH DEFORMABLE SOCKET|FR1555313A| FR3037369B1|2015-06-11|2015-06-11|INSTALLED FIXING ON SINGLE STITCH WITH DEFORMABLE SOCKET|
    RU2018100399A| RU2714661C2|2015-06-11|2016-06-10|Fastening element installed on one side|
    CN201680033347.3A| CN107810338B|2015-06-11|2016-06-10|Fastener for blind installation|
    CA2987870A| CA2987870A1|2015-06-11|2016-06-10|Attachment fitted on a single side|
    BR112017026673-3A| BR112017026673B1|2015-06-11|2016-06-10|FIXING TO ATTACH STRUCTURE ELEMENTS|
    EP16732506.7A| EP3308040B1|2015-06-11|2016-06-10|Attachment fitted on a single side|
    PCT/EP2016/063298| WO2016198600A1|2015-06-11|2016-06-10|Attachment fitted on a single side|
    JP2017559651A| JP6885879B2|2015-06-11|2016-06-10|Fixtures installed from only one side|
    ES16732506T| ES2784934T3|2015-06-11|2016-06-10|Fixing installed on one side only|
    US15/735,180| US10690167B2|2015-06-11|2016-06-10|Attachment fitted on a single side|
    KR1020177034507A| KR20180017002A|2015-06-11|2016-06-10|A fastener|
    MX2017014489A| MX2017014489A|2015-06-11|2016-06-10|Attachment fitted on a single side.|
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