WO2016180639A1 - Closure plug - Google Patents
Closure plug Download PDFInfo
- Publication number
- WO2016180639A1 WO2016180639A1 PCT/EP2016/059439 EP2016059439W WO2016180639A1 WO 2016180639 A1 WO2016180639 A1 WO 2016180639A1 EP 2016059439 W EP2016059439 W EP 2016059439W WO 2016180639 A1 WO2016180639 A1 WO 2016180639A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing
- spreading
- plug
- sealing plug
- folding
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/24—Superstructure sub-units with access or drainage openings having movable or removable closures; Sealing means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
- F16J13/14—Detachable closure members; Means for tightening closures attached exclusively by spring action or elastic action
Definitions
- the invention relates to a sealing plug for closing an opening, in particular in a vehicle body.
- Bodywork creates a multitude of openings and holes that would allow ingress of moisture and dirt. Furthermore, such openings and holes also form so-called sound bridges. Therefore, these openings and holes are closed with plugs.
- the aim is to seal the openings and holes and also to bring about a sound attenuation. Closure plugs are used to close these body openings. For this purpose, a variety of plug geometries is already known.
- DE 102 53 983 A1 shows a sealing plug for sealing and sound-absorbing closing of a hole in a component.
- the sealing plug has an annular sealing portion which is compressed upon insertion of the sealing plug into the opening and sealingly abuts the edge of the opening.
- DE 35 12 582 A1 discloses a perforated plug with a sealing lip which is pressed radially inwardly when inserted into the hole and after insertion unfolds radially outward again and applies to the perforated plate.
- a closure plug with the features of claim 1.
- a sealing plug for closing an opening with an annular sealing portion is provided which can rest on the edge of the opening, and a spreading, which is integral with the sealing portion and from a mounting position in which the sealing portion has a mounting diameter at least at one axial end, is adjustable in a Sp lanternposition in which the sealing portion has a larger diameter, wherein the sealing portion by the adjustment in the Sp lanternposition sealingly against the opening edge and the inner opening surface applies ,
- the invention is based on the idea to use a plug which can be inserted in the mounting position with little force in the opening of the vehicle body and then adjusted by pressure on a part of the plug in the mounting direction in a spread position in which the plug reliably against seals the edge of the opening.
- the sealing portion of the sealing plug initially has a mounting diameter which is smaller than the diameter of the sealing portion in the expanded position, the sealing plug can be easily inserted into the opening. Depending on the dimensions, this can be done completely or at least approximately without friction.
- the expanding portion is moved from the mounting position to the expanding position, so that the sealing portion is pushed outward and receives a larger diameter.
- the sealing section engages sealingly against the edge of the opening into which the sealing plug is inserted.
- the closure plug is thus fixed by the deflection of axial pressure in a radial deformation in the opening. It is particularly advantageous that the indentation direction of the expansion section and the insertion direction of the sealing plug are identical.
- the design of the closure stopper according to the invention also allows the sealing section to abut against the opening edge or the inner opening surface even with different sheet thicknesses. It is particularly advantageous that the closure plug can be used with low mounting force in the opening. At the same time, the adjustment into the spreading position allows the sealing section to bear sealingly against the edge or the insides of the opening, and thus a good sealing effect can be achieved.
- the stopper sound-deadening.
- the spreading section is connected to the sealing section by means of a folding section.
- the folding section can be structurally very easy to implement an axial displacement of the expansion in a radial expansion movement.
- the spreading behavior of the expansion section can be adjusted by the folding section. The transferring of the expansion section from the mounting position into the expansion position takes place by folding the folding section. In this way, moreover, the closure plug is permanently fixed in the spread position, because the folding section is folded in the spread position. The folding also increases the stability of the sealing plug.
- the folding section has at least two stepped cylinder sections in the mounting position of the expansion section.
- the cylinder sections cause a defined folding behavior. It is conceivable, for example, that the folding of the folding section between the two stepped cylinder sections takes place.
- the folding section when seen in section, when the spreading section is in the spreading position, extends meander-shaped in section.
- the meandering course allows a particularly stable shape and folding of the folding section in the spread position.
- the folding portion has a central portion which is connected with two film hinges with the sealing portion and the spreading portion.
- the wall thickness of the middle section to the wall thickness of the film hinges is in the ratio of 4: 1 to 8: 1, preferably in the ratio of 5
- the central portion has sufficient rigidity
- the film hinges are yielding enough not to oppose excessively high resistance to the indentation of the expanding portion.
- the folding portion is connected to the sealing portion at its axial end, which has the mounting diameter when the spreading portion is in the mounting position.
- the spreading section is designed plate-shaped. This simple geometry allows a stable, yet easy to manufacture shape of the sealing plug.
- the spreading portion has a diameter which is larger than half of the inner diameter of the sealing portion.
- the sealing portion has at its axial end, which has the mounting diameter, when the expanding portion is in the mounting position, a circumferential locking edge.
- the peripheral locking edge allows a secure pre-fixing of the sealing plug in the opening to be closed, even before the expansion has been brought into the spread position.
- a latching connection between the folding portion and the spreading portion is formed when the expanding portion is in the spread position.
- the expanding section can be mechanically locked in the spread position, which increases the security against unintentional loosening.
- the locking connection can be achieved with little effort, characterized in that the spreading portion is provided with a rib which projects radially outward.
- a rib may be provided at the folding portion projecting radially outward when the expanding portion is in the mounting position.
- the rib provided on the expanding section engages behind the rib provided on the folding section when the spreading section is brought into the spreading position.
- the locking connection thus results automatically, without additional steps are necessary when the expansion reaches the Sp Drposition.
- the two ribs are circumferential. It could in principle be provided that the ribs are interrupted in sections. With circumferential ribs result in higher overall holding forces.
- the sealing portion at the axial end which is opposite to the axial end, which can be widened by means of the spreading, has a circumferential sealing lip.
- the sealing lip can be arranged obliquely to the sealing portion and point or aligned in the direction of the axial end, which can be widened by means of the expansion section. As a result, a bias voltage can be automatically applied to the sealing lip during insertion of the plug, whereby the sealing effect is increased.
- closure plug is designed as a one-piece injection-molded part. This allows a cost-effective production of the sealing plug even at high quantities. According to one embodiment of the invention it is provided that the
- TPE sealing plug in particular TPE with a hardness of 40 to 80 Shore A.
- This material is particularly suitable when the sealing plug is inserted into an opening of a vehicle body, after it has been painted and the paint was fired.
- TPT can be used, for example with a hardness of 50 to 70 Shore A.
- the sealing plug consists of a TPE with adhesive properties.
- This material is particularly suitable when the closure plug is inserted into an opening of a vehicle body before it is painted and the paint is fired.
- the material used here is especially TPS-SEBS.
- Figure 1 is a perspective view obliquely from above of a first embodiment of a sealing plug according to the invention
- Figure 2 is a perspective bottom view of the sealing plug according to Figure 1;
- Figure 3 is a perspective sectional view of the sealing plug according to Figure 1;
- FIG. 4 shows a further perspective sectional view of the sealing plug according to FIG. 1 in the mounting position, inserted into an opening of a vehicle body;
- FIG. 5 shows a further perspective detail sectional view of the sealing plug according to FIG. 1 in the spread position inserted into an opening in a vehicle body;
- FIG. 6 shows a further perspective sectional view of the sealing plug according to FIG. 1 in the spread position inserted into an opening of a vehicle body
- FIG. 7 shows a further perspective detail sectional view of the sealing plug according to FIG. 1 in the expanded position
- Figure 8 is a broken sectional view of a sealing plug according to a second embodiment in the mounting position.
- FIG. 9 shows a sectional view of the sealing plug of the second embodiment in the spread position.
- Figure 1 shows a perspective view obliquely from above of a first embodiment of a sealing plug 10 according to the invention, which is designed as a one-piece injection-molded part.
- the sealing plug is made of plastic.
- the sealing plug 10 has as main components an annular sealing portion 12, a spreading portion 14 and a folding portion 16.
- the sealing portion 12 and the spreading portion 14 are integrally connected by the folding portion 16.
- the sealing portion 12 has at its axial end 20, to which it is connected to the folding portion 16, a circumferential locking edge 22 and a chamfer 24.
- the locking edge 22 is followed by a peripheral bearing surface 26, to which then at the other axial end 28, a circumferential sealing lip 30 connects.
- the sealing lip 30 is arranged obliquely to the sealing portion 12 and aligned in the direction of the axial end, at which the spreading portion 14 is connected to the sealing portion.
- the support surface 26 is cylindrical in the broadest sense, wherein the sealing portion 12 in the state of the sealing plug, as shown in Figures 1 to 3, is slightly conical; the diameter at the sealing lip 30 facing the end is slightly larger than the provided with the locking edge 22 end.
- the spreading portion 14 is designed in the manner of a circular plate whose diameter is greater than half the inner diameter of the sealing portion 12. Apart from some space for the folding portion 16 of the expansion takes the entire interior space within the sealing portion 12 a.
- the spreading portion 14 is made smooth on one side and provided on the other side with reinforcing elements 32.
- the reinforcing elements 32 reinforce and stiffen the spreading portion 14.
- the reinforcing elements 32 are here as a reinforcing ring 34 and as
- the reinforcing elements are arranged on the side of the expansion section, which faces the axial end of the sealing ring 12 provided with the latching edge 22.
- the folding portion 16 connects the expanding portion 14 with the sealing portion 12, namely the outer periphery of the expanding portion 14 with the inside of the axial end of the sealing portion having the smaller diameter in the initial state of Figures 1 to 3, ie with the axial end, with the Locking edge is provided.
- it has two stepped cylinder sections 38, 40, wherein the diameter of the cylinder section 38 connected to the expanding section 14 is smaller than the diameter of the cylinder section 40 connected to the sealing section 12.
- the sealing plug 10 can assume two states, namely an unlocked state in the mounting position, as shown in Figures 1 to 4, and a locked state in the spread position, as shown in Figures 5 to 7.
- the transition from the mounting position to the spread position is effected in that the expansion portion 14 from a mounting position in which the sealing portion 12 has an assembly diameter at least at one axial end, is adjustable in a spread position in which the sealing portion 12 has a larger diameter.
- the diameter of the sealing section 12 is increased by the fact that the expanding section 14 and the folding section 16 in the expanded position press the sealing section 12 radially outward.
- the sealing portion 12 can be applied to the inside of the opening, so that the sealing plug 10 is reliably jammed in the opening and holds there well.
- the spreading portion 14 has a diameter which is greater than half the inner diameter of the sealing portion 12.
- the sealing plug 10 is inserted in its mounting position in the opening O.
- the spreading portion 14 is not yet depressed, so that it lies above the sealing lip 30.
- the opening O to be closed is an opening here
- the sealing portion 12 of the sealing plug 10 initially has a mounting diameter which is smaller than the diameter of the sealing portion 12 in the expanded position, the closure plug 10 can be inserted into the opening O without much effort
- the spreading portion 14 is moved from the mounting position by simply pressing the expansion portion 14 in the spread position (see Figures 4 and 5). This is done with an axial force F A , which is aligned in the direction of the axial direction of the sealing plug 10.
- the folding portion 16 is folded, so that the two cylinder sections 38, 40, which lie in the starting or mounting state in the axial direction one behind the other, now lie radially adjacent to each other at the same height.
- the cylinder sections 38, 40 are dimensioned such that when they are adjacent to one another, they exert a radial spreading force or radial force F R on the sealing section 12, more precisely on the lower axial end in the figures, thereby providing the locking edge 22 Expands end of the sealing portion 12 to the outside, so that the sealing portion 12 is pressed against the edge of the opening O.
- the sealing portion 12 By pressing in the expanding portion 14, the sealing portion 12 is pressed outward and receives a larger diameter.
- the sealing portion 12 sealingly engages the edge of the opening O into which the sealing plug is inserted.
- the folding section 16 runs in a meandering manner when viewed in section.
- the meandering fold of the folding portion 16 in the spread position of the sealing plug 10 is securely fixed in this position.
- the part of the folding portion 16, which adjoins the spreading portion 14, pushes the part of the folding portion 16, which adjoins the sealing portion 12 to the outside.
- the meandering fold of the folding portion 16 has the advantage that it is dimensionally stable.
- the closure plug 10 is thus fixed by the deflection of axial pressure in a radial deformation in the opening O. It is particularly advantageous that the indentation direction of the expansion section 14 and the insertion direction of the sealing plug 10 are identical. The closure plug 10 can thus be inserted and fixed with a single movement in the opening O.
- the inventive design of the sealing plug 10 also allows the sealing section 12 to be applied to the opening edge or the inner opening surface even with different sheet thicknesses.
- FIGS. 8 and 9 show a sealing plug according to a second embodiment.
- the same reference numerals are used, and reference is made to the above explanations in this respect.
- the essential difference between the first and the second embodiment is that in the second embodiment, a locking connection between the expansion portion 14 and the folding portion 16 is made when the expansion portion 14 is in the spread position.
- the locking connection is achieved in that the spreading portion 14 is provided with a circumferential, radially outwardly projecting rib 50 which can cooperate with a rib 52.
- the rib 52 is provided on the folding portion 16 (see FIG. 8). Both ribs 50, 52 are executed here undercut.
- the rib 52 is disposed on the side of the folding portion 16 which faces radially outwardly when the expanding portion 14 is in the mounting position and radially inwardly when the expanding portion 14 itself located in the spread position.
- the rib 52 is folded inwardly to engage the rib 50 of the expansion portion 14.
- the essential effect of the locking connection formed by the ribs 50, 52 is that the expansion portion 14, when it has been brought into the spread position, is mechanically locked in this.
- the folding portion 16 has an annular central portion 54 which has a significantly greater wall thickness in relation to the sections 56, 58 adjoining in the axial direction. From the large wall thickness results for the central portion 54, the rigidity, which is desirable for the locking connection.
- the adjoining in the axial direction sections 56, 58 are formed here as film hinges. This facilitates the everting of the folding portion from the configuration shown in FIG. 8 into the configuration shown in FIG.
- the ratio of the wall thickness of the middle section 54 to the wall thickness of the film hinges 56, 58 is preferably in the range from 4: 1 to 8: 1, particularly preferably in the range from 5: 1 to 6: 1.
- the closure plug can be injection molded without having to use slides in the injection mold.
- a TPE with a hardness of 40 to 80 Shore A can be used, in particular a TPO with a hardness of 50 to 70 Shore A. This material is particularly suitable when the sealing plug is inserted into openings of a vehicle body, after this was painted and the paint was fired.
- the material used for the sealing plug can also be a TPE with adhesive properties, in particular a TPS-SEBS. This material is particularly suitable when the stopper is inserted into openings of a vehicle body before it is painted and the paint is fired.
- the material preferably contains additives that ensure that the Sealing plug keeps sufficient strength even at temperatures up to approx. 180 ° C.
- the TPE sticks to the edge of the opening O into which the sealing plug is inserted.
- a tightness is ensured, so that even when pressure differences between the two sides of the sealing plug (for example, by the expansion or contraction of air, which is enclosed in a part of the vehicle body through the sealing plug) no air and no moisture from one side of the sealing plug can reach the other side.
- TPE adhesive properties
- the use of a TPE having adhesive properties as the material for the plug constitutes an independent aspect of the invention. As a result, it is not necessary to apply a separate adhesive layer to the plug. Instead, this can be carried out as a 1 -K component, ie in a component of a single material, so as to give the desired strength and the desired adhesive properties. This is independent of the above-described geometry of the plug.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112017024343-1A BR112017024343A2 (en) | 2015-05-13 | 2016-04-27 | shutter plug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015107540.7A DE102015107540B4 (en) | 2015-05-13 | 2015-05-13 | Sealing plug |
DE102015107540.7 | 2015-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016180639A1 true WO2016180639A1 (en) | 2016-11-17 |
Family
ID=55862780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/059439 WO2016180639A1 (en) | 2015-05-13 | 2016-04-27 | Closure plug |
Country Status (3)
Country | Link |
---|---|
BR (1) | BR112017024343A2 (en) |
DE (1) | DE102015107540B4 (en) |
WO (1) | WO2016180639A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019105984B3 (en) * | 2019-03-08 | 2020-02-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Sealing ring for connecting two fluid-carrying elements, cooling system with such a sealing ring for a traction battery of an electrically operated vehicle and method for producing such a cooling system |
DE202020103005U1 (en) | 2020-05-26 | 2021-08-27 | Woco Industrietechnik Gmbh | Stopper for closing an opening in a motor vehicle part |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3279643A (en) * | 1965-01-05 | 1966-10-18 | United Carr Inc | Closure member |
DE3512582A1 (en) | 1985-04-06 | 1986-10-16 | Itw-Ateco Gmbh, 2000 Norderstedt | HOLE PLUGS, IN PARTICULAR FOR SEALING PAINT LEAKAGE HOLES IN BODIES OF MOTOR VEHICLES |
FR2796367A1 (en) * | 1999-07-13 | 2001-01-19 | Itw De France | Plug for sealing holes in car bodywork comprises skirt with a peripheral lip which fits against bodywork, series of teeth pivoted on skirt and central button which pushes them outwards that plug is locked in hole |
DE10253983A1 (en) | 2002-11-15 | 2004-06-03 | Itw Automotive Products Gmbh & Co. Kg | Plug for sealing a hole in a component in a sound-absorbing manner |
WO2013026458A1 (en) * | 2011-08-23 | 2013-02-28 | Kvt-Koenig Ag | Closure element for bores subjected to internal pressure |
EP2781806A1 (en) * | 2011-11-16 | 2014-09-24 | Nifco Inc. | Hole plug |
EP2873894A1 (en) * | 2013-11-15 | 2015-05-20 | TRW Automotive Electronics & Components GmbH | Stopper |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2805503B1 (en) | 2000-02-28 | 2002-05-31 | Itw De France | SHUTTER FOR AN OPENING MADE IN A SHEET |
-
2015
- 2015-05-13 DE DE102015107540.7A patent/DE102015107540B4/en active Active
-
2016
- 2016-04-27 WO PCT/EP2016/059439 patent/WO2016180639A1/en active Application Filing
- 2016-04-27 BR BR112017024343-1A patent/BR112017024343A2/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3279643A (en) * | 1965-01-05 | 1966-10-18 | United Carr Inc | Closure member |
DE3512582A1 (en) | 1985-04-06 | 1986-10-16 | Itw-Ateco Gmbh, 2000 Norderstedt | HOLE PLUGS, IN PARTICULAR FOR SEALING PAINT LEAKAGE HOLES IN BODIES OF MOTOR VEHICLES |
FR2796367A1 (en) * | 1999-07-13 | 2001-01-19 | Itw De France | Plug for sealing holes in car bodywork comprises skirt with a peripheral lip which fits against bodywork, series of teeth pivoted on skirt and central button which pushes them outwards that plug is locked in hole |
DE10253983A1 (en) | 2002-11-15 | 2004-06-03 | Itw Automotive Products Gmbh & Co. Kg | Plug for sealing a hole in a component in a sound-absorbing manner |
WO2013026458A1 (en) * | 2011-08-23 | 2013-02-28 | Kvt-Koenig Ag | Closure element for bores subjected to internal pressure |
EP2781806A1 (en) * | 2011-11-16 | 2014-09-24 | Nifco Inc. | Hole plug |
EP2873894A1 (en) * | 2013-11-15 | 2015-05-20 | TRW Automotive Electronics & Components GmbH | Stopper |
Also Published As
Publication number | Publication date |
---|---|
DE102015107540A1 (en) | 2016-11-17 |
DE102015107540B4 (en) | 2021-07-22 |
BR112017024343A2 (en) | 2019-11-12 |
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