• 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:
    A sealing plug (10) for closing an orifice in a component, in particular a body component of a motor vehicle, has a base body (12) designed so as to cover the orifice and engage behind an edge of the orifice. A sealing body (14) is arranged on the base body (12) which has an annular section (24) and a plurality of lamellae (26) with free radial ends (28) which project from the annular section (24). ) and are flexible in the peripheral direction (U). The sealing plug (10) is inserted into the orifice such that the rearward engagement lip (18) engages behind the edge of the orifice (34), the lamellae (26) of the body sealing (14) being deformed in the peripheral direction (U) and centering the sealing plug (10) in the orifice (34). After heating the sealing plug (10), a heat-expandable sealing body seal (14) encloses the inner edge of the orifice and radially adjacent areas of the face. front and rear of the component over the entire periphery of the orifice and completely fills the space formed between the support lip (16), the engagement lip (18) and the component.
    公开号:FR3032947A1
    申请号:FR1551554
    申请日:2015-02-24
    公开日:2016-08-26
    发明作者:Michel Kuhm；Stephane Dorschner
    申请人:BCS Automotive Interface Solutions GmbH；
    IPC主号:
    专利说明:

    [0001] The invention relates to a sealing plug for sealing an orifice in a component, in particular a body component of a motor vehicle. The invention further relates to an assembly comprising such a sealing plug and to a method of sealing an orifice. When manufacturing vehicle bodies, it is necessary to seal holes in different body components to prevent the ingress of dirt or water. These orifices are for example closed only when the respective body component is conducted in a heating furnace during the lacquering procedure for the melting and hardening of the applied varnish. For this purpose, closure plugs are used, which are inserted into the orifice of the body component and are, for example, fixed by means of appropriate interlocking elements which engage in the orifice of the component. The closure cap can at the same time provide sealing of the orifice. It is, for example, known to bond at least one section of the sealing plug permanently to the edge of the orifice. A portion of the sealing plug is for example made of a material melting or extending under the effect of temperature so that during heating of the component, for example during lacquering, the sealing plug is connected to the edge of the seal. the orifice by cooperation of materials. The orifice is thus sealed so as to be watertight, and the sealing plug is at the same time fastened to the body component.
    [0002] Such a sealing plug is for example shown in DE 602 04 131 T2, two concentric rings of fuse material which are connected to one another by a plurality of ribs being provided, the radially outer ring 3032947 - 2 - resting beside the edge of the orifice, and the radially inner ring resting on the inner edge of the orifice. In all the concepts, the disadvantage is that the sealing plug must be adapted quite accurately to the diameter of the orifice, and that it is thus necessary to prefabricate and store a large number of sealing plugs. for different orifice diameters. The object of the invention is to create a sealing plug which is adapted to be used for orifices with different diameters. This object is achieved according to the invention with a sealing plug for closing off an orifice in a component, in particular a body component of a motor vehicle, which has a base body which is designed so as to cover the orifice and to engage behind an edge of the orifice, a sealing body being arranged on the base body, which has an annular section and a plurality of lamellae with radial free ends, which project from the annular section and are flexible in the peripheral direction. Thanks to their mobility in the peripheral direction, the slats can more or less hang on the annular section and thus allow the insertion of the sealing body in orifices having different diameters, the slats always resting on the inner edge of the orifice. The diametric zone here depends on the length of the lamellae. A minimum diameter is defined by the fact that when the sealing plug is inserted, the lamellae rest almost completely on the annular section, while the maximum diameter is determined in that the lamellae project as far as possible radially towards the outside. The lamellae are preferably resiliently made and thus exert a restoring force in the circumferential and radial direction, which ensures that the sealing plug is jammed in the orifice and further causes the sealing plug to be centered. in the hole. The material of the sealing body must for this purpose be elastic.
    [0003] About ten slats with a length of about 3 to 5 mm may for example be provided, which allows a variation of the orifice diameter of about 5 mm, for example for the use of orifices with a diameter between and 35 mm. The slats preferably extend in the plane of the annular section so that the annular section is also at the inner edge of the orifice when the sealing plug is inserted into the orifice. The lamellae preferably extend over the entire axial length of the annular section. In a preferred embodiment, the base body has a peripheral support lip and a peripheral engagement lip for pressing on a front face and a rear face of the component, the sealing body being received between the lip of the support and the engagement lip. The lamellae are preferably also completely received in the space formed by the lips and protected by them. The lips extend for example obliquely and form a respective truncated cone. The engagement lip must engage behind the rear edge of the port in the mounted state and thereby allow the entire sealing plug to engage upon insertion into the desired position. The base body may have a circumferential peripheral wall, and the sealing body, in particular its annular section, may rest radially on the outside of the peripheral wall. This embodiment provides stable radial support for the seal body and generates sufficient back pressure to secure the seal plug upon insertion into the port. When the slats are chamfered at their free radial ends at the axial end of the engagement lip, this chamfer facilitates folding in the peripheral direction when inserting the sealing plug into the orifice.
    [0004] Upon insertion, the chamfer rests on the inner face of the latching lip at the axial end on the orifice side of the blade. When the engagement lip touches the inner edge of the orifice, the engagement lip exerts a force acting obliquely inwardly on the lamellae and produces a folding of the lamellae in the peripheral direction. Upon further insertion into the hole, the sipes are then bent in the peripheral direction due to the elastic deformation of the engagement lip. When the engagement lip engages behind the edge of the orifice in the mounted state, the sipes extend again due to their natural resilience so as to rest on the inner edge of the orifice. They then center the sealing plug in the hole. In this mounted state, the lamellae rest directly on the inner edge of the orifice, while the engagement lip engages behind the edge of the orifice. Contact between the lamellae and the engagement lip is no longer necessary. In a possible embodiment, the slats, unsolicited, are oriented at an angle of about 10 ° to 40 °, in particular at an angle of about 30 ° to the radial direction. It has been found that a simple folding is thus effected in the peripheral direction, since the lamellae are already oriented at an angle with respect to the radial direction in the unsolicited state, which determines a force component in the peripheral direction when inserted into the orifice. The sealing body, including the lamellae, is preferably of a heat-expandable material. The amount of extensible sealing material is advantageously calculated so that the gap between the support lip and the engagement lip and around the edge of the orifice is completely filled under the action of heat of about 120 to 180 °, for example. It is preferably provided with a sufficient amount of sealing material to fully fill the space enclosed by the support lip and the latching lip also when a maximum opening diameter is provided. As it expands, the sealing material fills the diameter of the orifice from the peripheral wall of the sealing plug to the inner edge of the orifice and further covers the component sections radially outwardly. the hole on both the front and the back of the component. A circumferentially sealed and watertight seal is thus obtained. The expansion of the sealing body is for example carried out during heating during lacquering. The base body, on the other hand, must be made of an elastic but non-deformable material and is preferably formed in one piece. Here, a semi-rigid plastic having a Shore D hardness of 30 to 50, for example TEE or TPE or other suitable thermoplastic elastomer, is conceivable. The seal body may be manufactured together with the base body in a two-component injection molding process to simplify manufacture. The invention also relates to an assembly comprising a sealing plug 5 for closing an orifice in a component, in particular a body component of a motor vehicle, and a component with an orifice, the plug of a sealing having a base body made so as to cover the orifice and to engage behind an inner edge of the orifice, a seal body being arranged on the base body, which has an expandable material under the effect of heat, the heat-expandable material enclosing the inner edge of the orifice and the radially adjacent areas of a front face and a rear face of the component throughout the periphery of the orifice after heating the sealing plug. As described above, the seal body may have outwardly projecting lamellae, but may also have another shape. After inserting the sealing plug into the hole and the subsequent heating, the expandable sealing material fills the space around the inner edge of the orifice entirely and if possible without cavities and thus seals the orifice. The invention further relates to a method for sealing an orifice in a component. A sealing plug as described above which has a front support lip and a rear engagement lip is inserted into the component port such that the rear engagement lip engages behind the rim edge. the orifice. The lamellae of the sealing body are then deformed in the peripheral direction and center the sealing plug 25 in the orifice. The component is heated, a heat-expandable material of the sealing body extending and enclosing the inner edge of the orifice and radially adjacent areas of the front and rear faces of the component, and completely filling the space formed between the support lip, the engagement lip and the component. The support lip and the engagement lip retain the sealing plug in its position during heating. The sealing material preferably completely fills the space between the lips after heating, so that no cavity remains in the space enclosed by the support lip and the engagement lip, which reduces the risk of corrosion. After the extension of the sealing body material, the withdrawal force may be greater than 400 N.
    [0005] The invention is described in the following with the aid of an exemplary embodiment with reference to the accompanying drawings. The drawings show: - Figure 1 a schematic representation in perspective and in partial section of a sealing plug according to the invention; Figure 2 is a diagrammatic sectional view of the sealing plug of Figure 1 during a first step when inserted into an orifice in a component; - Figure 3 a schematic sectional view of the sealing plug of Figure 1 during a second step during insertion into the orifice; - Figure 4 the sealing plug of Figure 1 in a schematic sectional view in its final position inserted into the orifice of the component, before heating; FIG. 5 is a diagrammatic sectional view of the sealing plug of FIG. 1 inserted into a component with a first orifice diameter; Figure 6 is a diagrammatic sectional view of the sealing plug of Figure 1 inserted into a component having a maximum opening diameter; and Figure 7 is a diagrammatic sectional view of the sealing plug inserted in an orifice, the left side of the figure showing the sealing plug before heating and the right side of the figure showing the sealing plug after the heating. Figure 1 shows a sealing plug 10 which has a base body 12 and a sealing body 14 arranged on the base body. In this example, the sealing plug 10 is composed of these two components. The base body 12 has a circumferentially peripheral support lip 16 and a circumferentially peripheral engagement lip 18 which both extend in a radially oblique direction towards each other. The support lip 16 extends radially further outward than the engagement lip 18. The support lip 16 and the engagement lip 18 are connected to each other. in one piece through a peripheral wall 20. The support lip 16 passes integrally into a cover section 22 so that the support lip 16 and the cover section 22 together form a closed surface. The sealing body 14 is composed of a circumferentially closed annular section 24 and a plurality of strips 26 which protrude outwards from the annular section 24 and which have free radial ends 28. The strips 26 extend here over the axial height of the annular section 24. The lamellae 26 are made in one piece with the annular section 24. In this example, 10 lamellae are distributed over the periphery of the annular section 24, the number of lamellae 26 being, however, variable at the appreciation of the person skilled in the art. The lamellae 26 do not extend exactly in the radial direction r away from the annular section 24, but are inclined at an angle of about 30 ° to the radial direction r (see, eg, Fig. 1). The annular section 24 is arranged to bear radially on the outside of the peripheral wall 20 of the base body. In the embodiment shown here, the sealing plug 10 is made entirely in one piece according to a two-component injection molding process. In this example, a semi-rigid, non-deformable but elastic material, for example a TEE or a TPE (available under the trade name Arnite10), or another suitable thermoplastic elastomer, having in particular a Shore D hardness of 30 to 50, is used as a material for the basic body. Here, however, the sealing body 14 is made of a heat-expandable material, each suitable known material increasing its volume to a temperature between about 120 ° and 180 ° which can be used. At their axial end 30 facing the support lip 18, all the lamellae 26 have a chamfer 32. The angle of the chamfer 32 is approximately as large as the angle at which the engagement lip 18 is oriented relative to in the axial direction A in the relaxed state (see for example Figures 1 and 2). Figures 2 to 4 show the insertion of the sealing plug 10 into an orifice 34 of a component 36 at a normal ambient temperature before heating the sealing plug 10. The sealing plug 10 is inserted into the orifice 34 with the engagement lip 18 first (see FIG. 2), the engagement lip 18 firstly bearing on the inner edge 38 of the orifice 34. The engagement lip 18 is thus deformed radially inwardly as it is pushed through the orifice 34. As can be seen in FIG. 3, the engagement lip 18 consequently rests on the chamfer 32 of the lamellae 26. Due to the angle has already been present with respect to the radial direction r, the respective strip 26 is bent in the peripheral direction U during the application of a force in the axial direction A, whereby the effective diameter of the body of sealing 14 is reduced and adapts to the diameter d of the o 34. After passing the edge of the orifice 34, the engagement lip 18 engages behind it on a rear face 40 of the component 36 (see FIGS. 4 and 7). The engagement lip 18 then releases from the slats 26, and these slacken due to their natural elasticity until the free radial ends 28 of the slats 26 bear on the inner edge 38 of the orifice 34 In this way, the sealing plug 10 is centered in the orifice 34.
    [0006] The sealing plug 10 is intended for use in orifices 34 having different diameters d between a minimum diameter and a maximum diameter dmax. The lamellae 26 deform more or less in the circumferential direction U diameter size d. FIG. 5 shows the situation in an aperture 34 near the minimum diameter, in which the lamellae 26 are bent at an almost maximal angle with respect to the radial direction r, while FIG. 6 shows the situation in an orifice 34 having a diameter 5 maximum dmax, wherein the slats 26 are almost in a state without stress. In the case of an orifice with a minimum diameter, the slats 26 can in principle bear flat on the outer periphery of the annular section 24. A better centering effect is however obtained when the slats 26 still have some play .
    [0007] The diameter d of the orifice 34 is of course always chosen to be greater than the outside diameter of the annular section 24, and less than a diameter d max described by the free radial ends 28 of the sipes 26 (see also FIGS. 5 and 6). It is thus possible, for example, to cover orifice diameters d of approximately 30 to 35 mm, the length of the strips 26 as measured along their extent from the periphery of the annular section 24 being between approximately 3 and 5 mm. In the pre-mounted position, in which the engagement lip 18 engages behind the rear face 40 of the component 36, the radially outer edge 42 of the support lip 16 rests on a front face 44 of the component 36, while that a radially outer edge 46 of the engagement lip 30 rests on the rear face 40 of the component 36. After engagement of the sealing plug 10 in the orifice 34 in the position shown in FIG. 7 of the left, and the support of the slats 26 on the inner edge 38 of the orifice 34, the component 36 is heated together with the sealing plug 10 inserted. The material of the sealing body 14 relaxes. The amount of material of the sealing body 14 is calculated such that the space enclosed by the peripheral wall 20, the support lip 16 and the engagement lip 18 is completely filled by the sealing material which now extends. .
    [0008] Thus, the entire edge of the orifice 34, both the inner edge of the orifice and the radially adjacent zones of the rear face 40 and the front face 44, is completely covered on the circumferential periphery by material 3032947. 10- sealing. Preferably, no cavity remains inside the space thus enclosed by the base body 12 of the sealing plug 10 in order to avoid condensation of water vapor and contact of the water with the component 36 in the area of the sealing plug 10.
    [0009] In an embodiment not shown, the sealing body of the sealing plug does not have outwardly projecting flexible lamellae, but in particular has a smooth outer contour. The outer contour could however also be made with ribs or bobbins, but could also extend conically to allow here also an adaptation to different opening diameters. Here again, the entire edge of the orifice 34, both the inner edge of the orifice and the radially adjacent zones of the rear face 40 and the front face 44, is however completely covered with sealing material on the circumferential periphery. after heating the sealing plug.
    [0010] By incorporating the edge of the orifice 34 into the sealing material, it is possible to achieve very high shrinkage forces of more than 400 N for example, as well as a high water tightness. for example a seal corresponding to a seal at a water depth of 1 m for one hour.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Sealing plug for sealing an orifice (34) in a component (36), in particular a body component of a motor vehicle, having a base body (12) constructed so as to cover the orifice (34) and to engage behind an edge of the orifice (34), a sealing body (14) being arranged on the base body (12), which has an annular section (24) and several lamellae (26) with free radial ends (28), which project from the annular section (24) and are flexible in the peripheral direction (U).
    [0002]
    Sealing plug according to claim 1, characterized in that the base body (12) has a peripheral support lip (16) and a peripheral engagement lip (18) for pressing on a front face ( 44) and a rear face (40) of the component (36), and in that the sealing body (14) is received between the support lip (16) and the engagement lip (18).
    [0003]
    Sealing plug according to one of the preceding claims, characterized in that the base body (12) has a circumferential circumferential wall (20), and that the sealing body (14) is radially outside on the peripheral wall (20).
    [0004]
    Sealing plug according to one of claims 2 and 3, characterized in that the lamellae (26) are chamfered at their radial free ends (28) at the axial end (30) on the locking lip side.
    [0005]
    5. Sealing cap according to one of the preceding claims, characterized in that the slats (26), unsolicited, are oriented at an angle of 0 to 40 °, in particular about 30 ° relative to the radial direction (r).
    [0006]
    Sealing plug according to one of the preceding claims, characterized in that the sealing body (14) is made of heat-expandable material.
    [0007]
    Sealing plug according to one of the preceding claims, characterized in that the base body (12) is made in one piece from an elastic but non-deformable material. 3032947 -12-
    [0008]
    Sealing plug according to one of the preceding claims, characterized in that the sealing body (14) is produced together with the base body (12) in a two-component injection molding process. 5
    [0009]
    9. An assembly comprising a sealing plug (10) according to one of the preceding claims, and a component (36) having an orifice (34) in which the sealing plug (10) is inserted, the plug seal (10) having a base body (12) constructed so as to cover the orifice (34) and engage behind an inner edge (38) of the orifice (34), a body sealing (14) being arranged on the base body (12), which has a heat-expandable material, and the sealing material of the sealing body (14) expandable under the effect of heat enclosing after heating the sealing plug (10) the inner edge (38) of the orifice (34) as well as radially adjacent areas of the front face (44) and the rear face (40) of the component ( 36) over the entire periphery of the orifice (34).
    [0010]
    Method for sealing an orifice (34) in a component (36), characterized in that a sealing plug (10) according to one of claims 1 to 8 which has a support lip ( 16) and a rearward engaging lip (18) is inserted into the aperture (34) of the component (36) so that the rear engaging lip (18) engages behind the edge. the orifice (34), the lamellae (26) of the sealing body (14) being deformed in the peripheral direction (U) and centering the sealing plug (10) in the orifice (34), and the component (36) is heated, a heat-expandable seal body material (14) extending and enclosing the inner edge (38) of the orifice (34) as well as radially adjacent regions of the front face (44) and the rear face (40) of the component (36) over the entire periphery of the orifice (34) and completely filling the formed space between the support lip (16), the engagement lip (18) and the component (36).
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    同族专利:
    公开号 | 公开日
    KR20160103515A|2016-09-01|
    US9783243B2|2017-10-10|
    EP3061675B1|2018-03-21|
    FR3032947B1|2020-02-21|
    CN105909789B|2020-03-17|
    CN105909789A|2016-08-31|
    US20160244104A1|2016-08-25|
    EP3061675A1|2016-08-31|
    引用文献:
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    DE102013112629A1|2013-11-15|2015-05-21|Trw Automotive Electronics & Components Gmbh|sealing plug|US10179612B2|2016-09-02|2019-01-15|Ford Global Technologies, Llc|Body aperture plug and body conversion|
    JP6769793B2|2016-09-09|2020-10-14|イリノイ トゥール ワークス インコーポレイティド|Foam hole plug|
    CN110177731A|2016-12-01|2019-08-27|伊利诺斯工具制品有限公司|It can suitability sealing stopple|
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    US11054032B2|2018-01-11|2021-07-06|Illinois Tool Works Inc.|Light weight hole plug|
    EP3747743A1|2019-06-05|2020-12-09|Illinois Tool Works Inc.|Sealing plugs|
    法律状态:
    2016-02-17| PLFP| Fee payment|Year of fee payment: 2 |
    2016-08-26| PLSC| Publication of the preliminary search report|Effective date: 20160826 |
    2017-02-23| PLFP| Fee payment|Year of fee payment: 3 |
    2017-11-03| TP| Transmission of property|Owner name: ITW FASTENER PRODUCTS GMBH, DE Effective date: 20171002 |
    2018-02-27| PLFP| Fee payment|Year of fee payment: 4 |
    2019-02-25| PLFP| Fee payment|Year of fee payment: 5 |
    2020-02-25| PLFP| Fee payment|Year of fee payment: 6 |
    2021-02-23| PLFP| Fee payment|Year of fee payment: 7 |
    2022-02-23| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1551554|2015-02-24|
    FR1551554A|FR3032947B1|2015-02-24|2015-02-24|SEALING PLUGS, ASSEMBLY AND METHOD FOR SEALING AN OPENING|FR1551554A| FR3032947B1|2015-02-24|2015-02-24|SEALING PLUGS, ASSEMBLY AND METHOD FOR SEALING AN OPENING|
    EP16150556.5A| EP3061675B1|2015-02-24|2016-01-08|Sealing stopper, assembly and method for sealing an opening|
    US15/008,493| US9783243B2|2015-02-24|2016-01-28|Sealing plug, assembly and method for sealing an opening|
    KR1020160017831A| KR20160103515A|2015-02-24|2016-02-16|Sealing plug, assembly and method for sealing an opening|
    CN201610098614.7A| CN105909789B|2015-02-24|2016-02-23|Sealing plug, assembly and method for sealing an opening|
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