Mounting structure of joint sealing member, sensor, and weather strip

Abstract

A mounting structure of a joint sealing member, a sensor, and a weather strip. A joint sealing member (1) includes a first side wall portion (10), a second side wall portion (20), a connecting wall portion (30), and a first holding lip (51) and a second holding lip (52) provided to an inner surface of the first side wall portion. The first holding lip is connected to the first side wall portion via a thin wall portion (53). When a flange (104) is not inserted, the second holding lip is in a curved shape that departs from a root portion (51a) of the first holding lip toward a proximal side in an insertion direction of the flange. On the other hand, when the flange is inserted, the second holding lip is in an extended open shape due to a pressing force of the flange, and a tip portion of the second holding lip is embedded between the root portion of the first holding lip and the inner surface of the first side wall portion. The present invention can reduce a force required when the joint sealing member is mounted to the flange, improve workability at the time of mounting, and sufficiently ensure a holding force of the joint sealing member after mounting.

Description

Technical Field

[0001] This disclosure relates to a mounting structure for a joint sealing component, a sensor, and a weatherstripping. Background Technology

[0002] For example, around the periphery of a car door or the periphery of the door opening, there is a folded edge formed by overlapping multiple panels obtained by stamping metal sheets and folding the ends. To prevent the folded edge from being exposed, a seam sealing member with a roughly U-shaped cross-section is installed to cover the folded edge. As such seam sealing members, there are known, for example, sensor-equipped members installed at the flange of a sliding door and equipped with foreign object detection sensors, opening sealing members, trunk sealing members, edge sealing members, etc., and any seam sealing member is installed at the flange.

[0003] Patent Document 1 discloses an installation structure for mounting a joint sealing component made of rubber or plastic to a flange. The joint sealing component of Patent Document 1 has a generally U-shaped cross-section, which includes a top and a pair of side legs. A retaining tongue is provided on the inner side of each side leg. The retaining tongue consists of a thin sheet integrally formed with the side leg and a thicker head portion connected to the thin sheet.

[0004] Existing technical documents Patent documents Patent Document 1: Japanese Patent Publication No. 54-163950 Summary of the Invention The technical problem that the invention aims to solve When the joint sealing component of Patent Document 1 is installed at the flange, the flange is inserted between a pair of retaining tongues. At this time, the head part rotates with the side connected to the sheet as the fulcrum, thereby allowing the flange to be inserted.

[0005] On the other hand, if an external force is applied to the joint sealing member in the state of being inserted with the flange, in the direction of causing it to detach from the flange, the head portion is prevented from rotating in the direction of flange detachment by abutting the root surface of the head portion against the limiting surface that functions as a stop; and the holding force that keeps the joint sealing member at the flange is increased by creating a supporting tension in the head portion.

[0006] When installing a joint sealing component like that in Patent Document 1 onto a flange, it is necessary to minimize the force required for installation to improve workability. On the other hand, in order to prevent the joint sealing component from easily detaching from the flange after installation, it is necessary to increase the holding force that keeps the joint sealing component at the flange. Thus, the joint sealing component installed at the flange needs to simultaneously meet these conflicting requirements at a higher level.

[0007] Regarding this point, the joint sealing component in Patent Document 1 achieves insertion of the flange by rotating the head portion using a thin sheet. However, in order to reduce the force required for insertion, the thin sheet needs to be thinner. But if the thin sheet is thinner, the posture control of the head portion will become insufficient when an external force is applied to the joint sealing component in the direction that causes it to disengage from the flange. As a result, the retaining force of the joint sealing component may be reduced.

[0008] This disclosure was made to solve the above-mentioned technical problems, and its purpose is to reduce the force required to install the joint sealing component onto the flange, thereby improving the workability during installation, and to fully ensure the retention force of the joint sealing component after installation.

[0009] Technical solutions for solving technical problems To achieve the above objectives, in the first aspect of this disclosure, a mounting structure for installing a joint sealing component onto a flange of an automobile is provided. The joint sealing component includes a first sidewall portion, a second sidewall portion, a connecting wall portion, and a first retaining lip and a second retaining lip. The first sidewall portion is disposed on one side of the flange in the thickness direction, and the second sidewall portion is disposed on the other side of the flange in the thickness direction. The connecting wall portion extends along the thickness direction of the flange and connects the first sidewall portion and the second sidewall portion. The first retaining lip and the second retaining lip are disposed on the inner surface of the first sidewall portion. The root of the first retaining lip is connected to the inner surface of the first sidewall portion via a thin-walled portion, and the first retaining lip is inclined in a manner that it approaches the second sidewall portion closer to the insertion direction of the flange. The second retaining lip is located closer to the front of the flange in the insertion direction than the first retaining lip. When the flange is not inserted, the second retaining lip has a curved shape that moves away from the root of the first retaining lip in the insertion direction of the flange closer to the front. On the other hand, when the flange is inserted, the second retaining lip is subjected to the squeezing force of the flange and extends out of the curved shape. When the flange is fully inserted, the tip of the second retaining lip is embedded between the root of the first retaining lip and the inner surface of the first sidewall portion.

[0010] According to this structure, when the joint sealing component is installed onto the flange, the flange is inserted between the first sidewall portion and the second sidewall portion of the joint sealing component. At this time, when the flange abuts against the second retaining lip, the insertion force of the flange is reduced because the curved second retaining lip deforms into an extended shape. Furthermore, the flange inserted between the first and second sidewall portions also abuts against the first retaining lip, but because the root of the first retaining lip is connected to the inner surface of the first sidewall portion via a thin-walled portion, the first retaining lip can easily displace under a smaller force, thus reducing the insertion force of the flange.

[0011] Once the flange is fully inserted, the second retaining lip extends into an open shape, with its tip embedding between the root of the first retaining lip and the inner surface of the first sidewall. This prevents the first retaining lip from rotating in the opposite direction to the flange insertion. Therefore, when an external force is applied to the joint seal member in the flange-inserted state, causing it to disengage from the flange, the first retaining lip creates supporting tension between the flange and the first sidewall. This supporting tension created by the first retaining lip increases the retaining force of the joint seal member.

[0012] In a second aspect of this disclosure, a recess that opens towards the front in the insertion direction of the flange may be formed between the root of the first retaining lip and the inner surface of the first sidewall portion. In this case, when the flange is fully inserted, the tip of the second retaining lip can be inserted into the recess.

[0013] This allows the tip of the second retaining lip to be reliably embedded between the root of the first retaining lip and the inner surface of the first sidewall portion.

[0014] In a third aspect of this disclosure, the second retaining lip may have an inclined plate portion and a top plate portion, the inclined plate portion being inclined from the inner surface of the first sidewall portion toward the top side and toward the insertion direction of the flange, and the top plate portion extending from the top portion of the inclined plate portion toward the insertion direction of the flange. In this case, the curved shape can be formed by the inclined plate portion and the top plate portion.

[0015] In a fourth aspect of this disclosure, the flange may also include a sealant applied to one side of the flange in the thickness direction. In this case, the second retaining lip is compressed by the sealant when the flange is inserted.

[0016] In a fifth aspect of this disclosure, the sealant may also be applied to a portion of the flange that extends from the tip in the insertion direction toward the base end. In this case, the tip of the first retaining lip abuts against the portion of the flange at insertion completion that is closer to the tip in the insertion direction than the sealant. This allows the tip of the first retaining lip to reliably abut against the flange and generate supporting tension.

[0017] In a sixth aspect of this disclosure, the portion between the root and tip of the second retaining lip may be formed such that it is positioned away from the inner surface of the first sidewall portion when the flange is fully inserted. That is, since the sealant is amorphous when attached to the panel, the thickness when applied to the flange is difficult to determine as a constant thickness. In this aspect, even if the sealant thickness varies slightly, it can be compensated for by the deformation of the second retaining lip, thus reducing the force required to install the joint sealing member onto the flange.

[0018] Invention Effects As explained above, it can reduce the force required to install the joint seal component onto the flange, thereby improving workability during installation, and can adequately ensure the retention force of the joint seal component after installation. Attached Figure Description

[0019] Figure 1 This is a left-side view of a car that uses the installation structure of the joint sealing component according to an embodiment of the present invention.

[0020] Figure 2 This is a perspective view showing the front of the left sliding door with the seam sealing component installed.

[0021] Figure 3 It is equivalent to along Figure 2 The sectional view taken along line III-III shows the state in which the flange of the joint seal component is omitted.

[0022] Figure 4 It is equivalent to along Figure 2 The cross-sectional view taken along line III-III shows the state before the flange is inserted (functional components such as sealing or sensor functions are omitted).

[0023] Figure 5 It is equivalent to along Figure 2 A sectional view taken along line III-III, showing the beginning of the flange insertion. Figure 4 The stage in the joint sealing component.

[0024] Figure 6 It is equivalent to along Figure 2 A sectional view taken along line III-III, showing the flange inserted into Figure 4The intermediate stage of the joint sealing component.

[0025] Figure 7 It is equivalent to along Figure 2 A sectional view taken along line III-III shows the flange fully inserted into Figure 4 The state of the joint sealing components.

[0026] Symbol Explanation 1-Seaming welt member; 10-Inner sidewall portion (first sidewall portion); 20-Outer sidewall portion (second sidewall portion); 30-Connecting wall portion; 1-First retaining lip; 51a-Root portion; 52-Second retaining lip; 53-Thin wall portion; 55-Recess portion; 104-Flange; 107-Sealant. Detailed Implementation

[0027] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the following description of preferred embodiments is merely illustrative and is not intended to limit the invention, its application, or its uses. For example, the relative sizes and positional relationships of the components shown in the drawings are only for illustrating one embodiment and do not limit the invention.

[0028] Figure 1 This is a left-side view of a car 100 that utilizes the installation structure of the joint sealing component according to an embodiment of the present invention. Front doors 101, which are hinged doors, are provided on the front sides of both the left and right sides of the car 100. Sliding doors 102 are provided on the left and right sides of the car 100 and behind the front doors 101. Figure 2 This is a perspective view showing the front of the sliding door 102 on the left. In each drawing, the front of the vehicle is simply referred to as "front" and the rear of the vehicle as "rear". Additionally, as... Figure 2 The diagram defines the inner and outer sides of the vehicle. The inner and outer directions are the same as the left-right direction (width direction) of the vehicle.

[0029] A door handle 103 for operating the sliding door 102 is provided at the front of the sliding door 102. A flange 104 extending in the vertical direction is provided at the front end of the sliding door 102. The flange 104 of the sliding door 102 is an example of the flanges found in automobiles 100.

[0030] A joint sealing component 1 is installed at the flange 104 of the sliding door 102. Figure 3 It is equivalent to along Figure 2 A cross-sectional view of flange 104 taken along line III-III shows a state where the joint sealing component 1 is omitted. Figure 3As shown, the sliding door 102 has an outer panel 105 constituting the outer side of the vehicle and an inner panel 106 constituting the inner side of the vehicle. The outer panel 105 and the inner panel 106 are obtained by stamping metal sheets.

[0031] A folded portion 105a, formed by folding, is provided at the front of the outer panel 105. That is, the front of the inner panel 106 abuts against the inner surface of the outer panel 105. The folded portion 105a of the outer panel 105 is folded back towards the rear by the folding process, and the folded portion 105a of the outer panel 105 clamps the front of the inner panel 106 in the thickness direction. By providing this folded portion 105a, the outer panel 105 and the inner panel 106 can be joined together as a single unit.

[0032] The thickness direction of flange 104 is consistent with the vehicle's interior / exterior direction. In this embodiment, one side of the thickness direction of flange 104 is defined as the vehicle's interior side, and the other side of the thickness direction of flange 104 is defined as the vehicle's exterior side.

[0033] Flange 104 includes a sealant 107 applied to the inner side of the vehicle. The sealant 107 is applied to a portion of flange 104 that moves from the top end (front end) toward the base end (rear end) in the insertion direction of joint sealing member 1. Specifically, the sealant 107 is applied at the end of the folded edge 105a covering the outer panel 105, and applying the sealant 107 at this location provides a rust-preventive effect.

[0034] The sealant 107 is amorphous. For example, when a paste-like sealant 107 is applied to the inner side of the flange 104, the sealant 107 cures over time. Figure 3 The image shows the sealant 107 in its cured state. Because the material is an amorphous coating, the shape and thickness of the cured sealant 107 may vary depending on the location.

[0035] The mounting structure of the joint sealing member 1 in this embodiment is for mounting the joint sealing member 1 to the flange 104 of the sliding door 102. In this case, a clamping detection sensor (not shown) can be provided at the joint sealing member 1, but this is not necessary for the present invention. The clamping detection sensor is a sensor for detecting foreign objects present between the front end of the sliding door 102 and the vehicle body. The clamping detection sensor is configured to generate a change in current when a foreign object touches the clamping detection sensor. The clamping detection sensor can be formed independently of the joint sealing member 1 and then combined into an integrated component, or it can be a structure formed integrally with the joint sealing member 1, for example, during extrusion molding. In this case, it can be regarded as a sensor using the mounting structure of the joint sealing member 1.

[0036] Alternatively, the joint sealing component 1 can be enhanced with a weatherstripping function, but this is not essential for the present invention. In this case, it can be considered as a weatherstripping with an installation structure incorporating the joint sealing component 1. By providing a sealing portion (not shown) on the joint sealing component 1, such as a hollow section or a tongue-shaped section, the joint sealing component 1 can be enhanced with a weatherstripping function. This sealing portion abuts against the vehicle body or other doors when the sliding door 102 is closed to prevent water, sound, wind, etc., from entering the vehicle interior. Alternatively, the joint sealing component 1 can be a composite type, combining the functions of a sensor and a weatherstripping.

[0037] Furthermore, the joint sealing component 1 can be not only an opening seal that is provided along an opening formed in the vehicle 100, the opening having a flange that is not only arranged in a straight line but can also be curved along its extension line; the joint sealing component 1 can also be an engine hood seal; the joint sealing component 1 can also be a trunk lid seal provided at the periphery of a trunk lid or a trunk opening; the joint sealing component 1 can also be an edge seal provided at the edge portion. Thus, the location and shape of the joint sealing component 1 are not particularly limited, and the installation structure of the joint sealing component 1 according to the present invention can be applied when the joint sealing component 1 is installed at various flanges of the vehicle 100.

[0038] Figure 4 It is equivalent to along Figure 2 A cross-sectional view of the joint sealing component 1 taken along line III-III shows the state before the joint sealing component 1 is inserted into the flange 104. Additionally, Figures 5-7 It is equivalent to along Figure 2 A sectional view taken along line III-III. Figure 5 This shows the stage where the flange 104 begins to be inserted into the joint sealing member 1. Additionally, Figure 6 This shows the stage where the flange 104 is inserted into the joint sealing member 1, and... Figure 7 This shows the flange 104 fully inserted into the joint sealing component 1.

[0039] The joint sealing component 1 includes an inner sidewall portion (first sidewall portion) 10, an outer sidewall portion (second sidewall portion) 20, a connecting wall portion 30, and a core material 40. The inner sidewall portion 10 is a wall portion disposed on one side of the flange 104 in the thickness direction, i.e., on the inner side of the vehicle, and extends along the flange 104 in the vertical and horizontal directions. The outer sidewall portion 20 is a wall portion disposed on the other side of the flange 104 in the thickness direction, i.e., on the outer side of the vehicle, and extends along the flange 104 in the vertical and horizontal directions and in the horizontal and horizontal directions.

[0040] The connecting wall portion 30 extends along the thickness direction of the flange 104 and also in the vertical direction, connecting the inner side wall portion 10 and the outer side wall portion 20. The inner side of the connecting wall portion 30 is integrated with the base end portion (front end portion) of the inner side wall portion 10, and the outer side of the connecting wall portion 30 is integrated with the base end portion (front end portion) of the outer side wall portion 20. Therefore, the connecting wall portion 30 extends from the front end portion of the inner side wall portion 10 to the front end portion of the outer side wall portion 20.

[0041] The longitudinal dimension of the inner sidewall portion 10 is set to be longer than that of the outer sidewall portion 20 in the longitudinal direction. As a result, the rear end of the inner sidewall portion 10 is located further rearward than the rear end of the outer sidewall portion 20.

[0042] The core material 40 is embedded in the inner sidewall portion 10, the outer sidewall portion 20, and the connecting wall portion 30. The portion of the joint sealing component 1 other than the core material 40 is made of an elastic material such as EPDM (ethylene propylene diene monomer) or thermoplastic elastomer. The material of the core material 40 can be any material that is harder and less prone to deformation than the elastic material constituting the portion of the joint sealing component 1 other than the core material 40; examples include hard resin materials and metal materials. The core material 40 can be provided as needed and is not a necessary component of this invention.

[0043] The core material 40 has an inner side panel portion 41 embedded in the inner side wall portion 10, an outer side panel portion 42 embedded in the outer side wall portion 20, and a connecting plate portion 43 embedded in the connecting wall portion 30. The inner side panel portion 41, the outer side panel portion 42, and the connecting plate portion 43 are formed as a single unit. The longitudinal dimension of the inner side panel portion 41 is set to be longer than that of the outer side panel portion 42 in the longitudinal direction, so as to correspond to the dimensional difference between the inner side wall portion 10 and the outer side wall portion 20 in the longitudinal direction. By embedding the core material 40, deformation of the joint sealing member 1 in the opening direction can be suppressed, that is, deformation in the direction in which the rear ends of the inner side wall portion 10 and the rear ends of the outer side wall portion 20 are far apart.

[0044] A first retaining lip 51 and a second retaining lip 52 are provided on the inner surface of the vehicle interior sidewall portion 10. The root 51a of the first retaining lip 51 is connected to the inner surface of the vehicle interior sidewall portion 10 via a thin-walled portion 53, and the first retaining lip 51 and the vehicle interior sidewall portion 10 are integrally formed. The thickness of the first retaining lip 51 is thinner than the thickness of the vehicle interior sidewall portion 10.

[0045] A rearwardly opening recess 55 is formed between the root 51a of the first retaining lip 51 and the inner surface of the vehicle inner sidewall portion 10. The first retaining lip 51 is tilted in a manner that approaches the outer sidewall portion 20 of the vehicle as it moves toward the insertion direction of the flange 104 (the front side in this embodiment).

[0046] like Figure 4As shown, in the stage before the flange 104 is inserted, the tip 51b of the first retaining lip 51 is a distance A from the inner surface of the outer sidewall portion 20. This distance A is set to be greater than... Figure 3 The flange 104 shown is shorter in thickness dimension B than the portion of the sealant 107 located on the front side.

[0047] The second retaining lip 52 is positioned closer to the front (rear side in this embodiment) than the first retaining lip 51 in the insertion direction of the flange 104, and the second retaining lip 52 is integrally formed with the inner sidewall portion 10. The thickness of the second retaining lip 52 is thinner than the thickness of the inner sidewall portion 10. The root 52a of the second retaining lip 52 moves rearward from the root 51a of the first retaining lip 51 and is located near the rear end of the outer sidewall portion 20.

[0048] like Figure 4 As shown, when the flange 104 is not inserted, the second retaining lip 52 has a curved shape that extends rearward from the root 51a of the first retaining lip 51. Specifically, the second retaining lip 52 has an inclined plate portion 52b and a top plate portion 52c. The inclined plate portion 52b is inclined from the inner surface of the vehicle inner sidewall portion 10 towards the top of the second retaining lip 52, moving towards the front and outer side of the vehicle. The top plate portion 52c extends forward from the top of the inclined plate portion 52b. The curved shape when the flange 104 is not inserted is formed by the inclined plate portion 52b and the top plate portion 52c.

[0049] When the flange 104 is not inserted, the boundary between the inclined plate portion 52b and the top plate portion 52c in the second retaining lip 52 is closest to the inner surface of the outer sidewall portion 20. The top plate portion 52c is formed such that the further forward it moves from the boundary portion, the further away it is from the inner surface of the outer sidewall portion 20. That is, when the flange 104 is not inserted, the top portion 52d of the top plate portion 52c is positioned toward the inner surface of the inner sidewall portion 10. In addition, when the flange 104 is not inserted, the top portion 52d of the top plate portion 52c is positioned further rearward than the root portion 51a of the first retaining lip 51.

[0050] Figure 5 The state shown is when the flange 104 just contacts the second retaining lip 52, therefore the second retaining lip 52 is in the position of... Figure 4 The shapes shown are roughly the same. On the other hand, as... Figure 6 and Figure 7 As shown, when the flange 104 is inserted between the inner sidewall portion 10 and the outer sidewall portion 20, the flange 104 contacts the second retaining lip 52 from the outer side of the vehicle, pressing the second retaining lip 52 towards the inner side of the vehicle. Since a sealant 107 is provided on the inner side of the flange 104, the second retaining lip 52 is pressed by the sealant 107 when the flange 104 is inserted, rather than by the metal plate portion of the flange 104.

[0051] When the second retaining lip 52 is inserted into the flange 104, it is subjected to a pressing force from the flange 104 toward the inward side of the vehicle. Under the action of this pressing force, the second retaining lip 52... Figure 4 and Figure 5 The curved shape shown becomes Figure 6 and Figure 7 The shape shown is an extended form. (Example) Figure 7 As shown, when the flange 104 is fully inserted, the top part 52d of the second retaining lip 52 is embedded in the recess 55 between the root part 51a in the first retaining lip 51 and the inner surface of the inner sidewall part 10.

[0052] The portion between the root 52a and the tip 52d of the second retaining lip 52 is formed such that it leaves the inner surface of the vehicle interior sidewall portion 10 when the flange 104 is fully inserted. Specifically, the boundary portion between the inclined plate portion 52b and the tip plate portion 52c in the second retaining lip 52 is bent in a direction away from the inner surface of the vehicle interior sidewall portion 10.

[0053] Furthermore, when the flange 104 is fully inserted, the tip 51b of the first retaining lip 51 abuts against the portion of the flange 104 that is forward of the sealant 107 (the metal plate portion). With the tip 51b of the first retaining lip 51 abutting against the flange 104, the first retaining lip 51 is tilted so that it approaches the outer sidewall portion 20 of the vehicle as it moves forward. Typically, the metal plate portion of the flange 104 has a higher shape precision than the sealant 107, allowing the tip 51b of the first retaining lip 51 to abut against this more shape-precision portion.

[0054] (Installation of the joint sealing component to the flange) When installing the joint sealing component 1 constructed as described above onto the flange 104, firstly, as follows: Figure 5 As shown, the joint sealing member 1 is arranged such that the top end of the flange 104 is positioned between the inner side wall portion 10 and the outer side wall portion 20 of the joint sealing member 1. Then, as... Figure 6 As shown, the joint sealing member 1 is moved rearward, and the flange 104 is inserted between the inner side wall portion 10 and the outer side wall portion 20 of the joint sealing member 1. At this time, the outer side surface of the flange 104 slides in contact with the inner surface of the outer side wall portion 20 of the joint sealing member 1, and the second retaining lip 52 is pressed towards the inner side by the sealant 107. Since the second retaining lip 52, which is pressed towards the inner side, deforms and extends in the direction where the angle between the inclined plate portion 52b and the top plate portion 52c increases, the second retaining lip 52 does not strongly interfere with the sealant 107, and the insertion force is reduced. In addition, when the second retaining lip 52 becomes extended, the top portion 52d of the second retaining lip 52 is embedded in the recess 55.

[0055] like Figure 7 As shown, when the flange 104 is fully inserted between the inner sidewall portion 10 and the outer sidewall portion 20 of the joint sealing component 1, the top end 51b of the first retaining lip 51 abuts against the flange 104. When the top end 51b of the first retaining lip 51 abuts against the flange 104, since the root portion 51a of the first retaining lip 51 is connected to the inner surface of the inner sidewall portion 10 via the thin-walled portion 53, the first retaining lip 51 can easily be displaced under a small force, thus reducing the insertion force of the flange 104.

[0056] When the flange 104 is fully inserted, the joint sealing member 1 is in the state of being installed at the flange 104. Because in this state the tip 52d of the second retaining lip 52 is embedded in the recess 55 between the root 51a of the first retaining lip 51 and the inner surface of the vehicle interior sidewall portion 10, the first retaining lip 51 will not rotate in the direction opposite to the insertion direction of the flange 104. That is, the tip 52d of the second retaining lip 52 becomes a stop that restricts the rotation of the first retaining lip 51. Thus, when an external force is applied to the joint sealing member 1 in the state of being inserted with the flange 104, in the direction that causes it to disengage from the flange 104, the tip 51b of the first retaining lip 51 tends to rotate rearward as the flange 104 moves, but because the movement of the root 51a is restricted, the first retaining lip 51 forms a supporting tension between the flange 104 and the vehicle interior sidewall portion 10. The retaining force of the joint seal 1 is increased by the support tension formed by the first retaining lip 51, thus preventing the joint seal 1 from detaching from the flange 104.

[0057] In particular, in the case of a joint sealing component with a sensor, the joint sealing component needs to be securely mounted on the flange 104 to prevent positional displacement after installation. By applying the present invention to this joint sealing component with a sensor, the posture of the joint sealing component 1 mounted on the flange 104 can be maintained in a posture consistent with the design, thereby preventing the detection range of the sensor from being affected.

[0058] Furthermore, when the present invention is applied to a joint sealing component with a sealing part that abuts against the vehicle body or other doors to prevent water, sound, wind, etc. from entering the vehicle interior, the posture of the sealing part installed at the flange 104 can be maintained, thus maintaining high sealing performance.

[0059] The above embodiments are merely illustrative in all respects and should not be construed as limiting. Furthermore, variations and modifications falling within the scope of the patent claims are included within the scope of this invention. It should be noted that the above embodiments describe the case where the joint sealing member 1 is assembled to a structure on which sealant 107 is provided on the flange 104, but sealant 107 may not be provided on the flange 104. Additionally, the flange 104 may not be made of metal. For example, if the flange is made of resin, it may sometimes lack a folded edge (not shown), and this invention can also be applied when the joint sealing member 1 is assembled to the flange of such a structure.

[0060] Industrial applicability In summary, the installation structure of the joint sealing component disclosed herein can be used, for example, to install sensors, opening seals, engine hood seals, trunk seals, edge seals, etc., onto the flanges of vehicle doors and bodies.

Claims

1. A mounting structure for a joint sealing component, used to mount the joint sealing component to a flange on an automobile, characterized in that, The joint sealing component includes a first sidewall portion, a second sidewall portion, a connecting wall portion, and a first retaining lip and a second retaining lip. The first sidewall portion is disposed on one side of the flange in the thickness direction, and the second sidewall portion is disposed on the other side of the flange in the thickness direction. The connecting wall portion extends along the thickness direction of the flange and connects the first sidewall portion and the second sidewall portion. The first retaining lip and the second retaining lip are disposed on the inner surface of the first sidewall portion. The root of the first retaining lip is connected to the inner surface of the first sidewall via a thin-walled portion, and the first retaining lip is inclined in a manner that gets closer to the second sidewall as it moves inward toward the insertion direction of the flange. The second retaining lip is located closer to the front of the flange in the insertion direction than the first retaining lip. When the flange is not inserted, the second retaining lip has a curved shape that moves away from the root of the first retaining lip in the insertion direction of the flange closer to the front. On the other hand, when the flange is inserted, the second retaining lip is subjected to the squeezing force of the flange and extends out of the curved shape. When the flange is fully inserted, the tip of the second retaining lip is embedded between the root of the first retaining lip and the inner surface of the first sidewall portion.

2. The installation structure of the joint sealing component according to claim 1, characterized in that, A recess is formed between the root of the first retaining lip and the inner surface of the first sidewall portion, opening towards the front in the insertion direction of the flange. When the flange is fully inserted, the tip of the second retaining lip engages with the recess.

3. The installation structure of the joint sealing component according to claim 1, characterized in that, The second retaining lip has an inclined plate portion and a top plate portion. The inclined plate portion is inclined from the inner surface of the first sidewall portion toward the top side, and is located inward in the insertion direction of the flange. The top plate portion extends from the top portion of the inclined plate portion toward the insertion direction of the flange. The curved shape is formed by the inclined plate portion and the top plate portion.

4. The installation structure of the joint sealing component according to claim 1, characterized in that, The flange includes a sealant applied to one side of the flange in the thickness direction. The second retaining lip is squeezed by the sealant when the flange is inserted.

5. The installation structure of the joint sealing component according to claim 4, characterized in that, The sealant is applied to the portion of the flange that moves from the tip towards the base in the insertion direction. The tip of the first retaining lip abuts against the portion of the flange at the point of insertion that is closer to the tip of the sealant in the insertion direction.

6. The installation structure of the joint sealing component according to claim 4, characterized in that, The portion between the root and the tip of the second retaining lip is formed such that it is in a state away from the inner surface of the first sidewall portion when the flange is fully inserted.

7. A sensor, characterized in that, The sensor utilizes the mounting structure of the joint sealing component as described in claim 1.

8. A weatherproof strip, characterized in that, The weatherstripping uses the installation structure of the joint sealing component as described in claim 1.

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