JP2011173571A - Service hole sealing structure and bonding method - Google Patents

Abstract

[PROBLEMS] To achieve both the sealing performance of a service hole cover and the workability during bonding.
In a service hole seal structure 10 according to the present invention, a convex portion 18 that is convex toward the inside of a vehicle is formed at a position facing an outer peripheral portion 20 of a service hole cover 14 in a door inner panel 12. Therefore, when the outer peripheral portion 20 is pressed against the convex portion 18 and bonded, the operator can easily grasp the bonding position by touching the convex portion 18 via the outer peripheral portion 20. Thereby, workability | operativity at the time of adhesion | attachment of the service hole cover 14 is securable. In addition, as described above, the convex portion 18 has a convex shape on the vehicle inner side and is higher than the general portion around the convex portion 18. Therefore, the convex portion 18 is bonded in a state where the outer peripheral portion 20 is more closely attached to the convex portion 18. be able to. Thereby, the sealing property of the service hole cover 14 can also be ensured.
[Selection] Figure 2

Description

  The present invention relates to a service hole sealing structure and a bonding method.

  Patent Document 1 discloses a door structure of an automobile provided with a door inner panel in which a service hole is formed and a service hole cover that covers the service hole. In this door structure, a groove is formed in the door inner panel so as to surround the service hole, and the service hole cover is bonded to the door inner panel with an adhesive filled in the groove.

Japanese Utility Model Publication No. 6-74427 Japanese Utility Model Publication No. 7-18939 Japanese Utility Model Publication No. 58-63120

  However, when the service hole cover is made of a transparent film in order to enable visual confirmation of the adhesion position and adhesion state of the service hole cover, the service hole cover is wrinkled or folded when the service hole cover is adhered, There is a possibility that the sealability of the service hole cover cannot be secured. In addition, the transparent film generally has insufficient rigidity, and in this case, there is a possibility that workability at the time of adhesion of the service hole cover is lowered.

  On the other hand, it has been proposed that the service hole cover be formed of a foam material in order to prevent the service hole cover from being wrinkled or bent and to ensure rigidity. However, in this case, since the service hole cover is opaque, it may be difficult to visually check the adhesion position and adhesion state of the service hole cover.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a service hole sealing structure and a bonding method capable of achieving both the sealing performance of the service hole cover and the workability during bonding. To do.

  In order to solve the above-mentioned problem, the seal structure of the service hole according to claim 1 is provided on the door inner panel so as to surround the service hole formed on the door inner panel, and is formed on the vehicle inner side. A service hole cover that is disposed on the vehicle inner side of the door inner panel so as to cover the service hole and that is formed of a foam material, and whose outer peripheral portion faces the convex portion, and the convex portion and the outer peripheral portion. And an adhesive for bonding the parts.

  According to the seal structure of the service hole, the service hole cover is formed of the foam material. Accordingly, it is possible to prevent wrinkles and folds from occurring in the service hole cover, so that the sealability of the service hole cover can be secured. Further, since the rigidity of the service hole cover is ensured, workability when the service hole cover is bonded can be ensured.

  By the way, since the service hole cover formed of a foam material is generally opaque, there is a possibility that it is difficult to visually check the adhesion position and the adhesion state of the service hole cover.

  However, according to the seal structure of the service hole, the door inner panel is provided with a convex portion that is convex toward the inside of the vehicle at a position facing the outer peripheral portion of the service hole cover. Therefore, when the outer peripheral portion is pressed against the convex portion and bonded, the operator can easily grasp the bonding position by touching the convex portion through the outer peripheral portion. Thereby, workability | operativity at the time of adhesion | attachment of a service hole cover is securable.

  Further, as described above, the convex portion is convex on the vehicle inner side and is higher than the general portion around the convex portion. Therefore, the convex portion can be bonded with the outer peripheral portion being more closely attached to the convex portion. . Therefore, if the operator presses the outer peripheral portion along the convex portion, a desired adhesion state between the outer peripheral portion and the convex portion can be obtained, so that the sealability of the service hole cover can be ensured. Further, since it is not necessary to visually check the adhesion state of the service hole cover after the bonding operation, workability at the time of bonding the service hole cover can be ensured.

  The service hole sealing structure according to claim 2 is the service hole sealing structure according to claim 1, wherein the service hole sealing structure is formed on at least one side of the convex portion and the opposite side of the service hole. In addition, a concave portion that constitutes unevenness with the convex portion is provided, and the convex portion and the concave portion are each formed by stamping on the door inner panel.

  According to the seal structure of the service hole, when the door inner panel is formed by press molding, the molding elongation section of the convex portion is substantially increased by the concave portion, so that the moldability of the door inner panel can be improved.

  The service hole sealing structure according to claim 3 is the service hole sealing structure according to claim 2, wherein the concave portion is formed on the service hole side and the opposite side of the service hole with respect to the convex portion, respectively. It is configured.

  According to the seal structure of the service hole, the height of the convex portion relative to the general portion around the convex portion can be suppressed while ensuring the height from the bottom of the concave portion to the top of the convex portion. Thereby, the moldability of a door inner panel can be improved more.

  The service hole seal structure according to claim 4 is the service hole seal structure according to any one of claims 1 to 3, wherein the service hole seal structure is formed by stamping on the outer peripheral portion and is engaged with the convex portion. Engaging recesses.

  According to the seal structure of the service hole, the service hole cover can be positioned with respect to the door inner panel by engaging the engaging concave portion with the convex portion. Moreover, since this engagement recessed part is visually recognized as a convex part from the vehicle inner side, the adhesion part can be predicted and workability can be improved.

  The service hole sealing structure according to claim 5 is the service hole sealing structure according to claim 4, wherein the height dimension of the convex part is set larger than the depth dimension of the engaging concave part. Has been.

  According to the seal structure of the service hole, the top part of the convex part and the bottom part of the engaging concave part are bonded together while suppressing the bottom of the general part around the convex part and the general part around the engaging concave part. Can do. Thereby, the sealing performance of the service hole cover can be ensured.

  In order to solve the above-mentioned problem, the service hole cover adhering method according to claim 6 is provided on the door inner panel so as to surround the service hole formed on the door inner panel and protrudes toward the inside of the vehicle. An adhesive application step of applying an adhesive to the convex portion, a service hole cover formed of a foam material on the vehicle inner side of the door inner panel, and covering the service hole with the service hole cover, A bonding step of bonding an outer peripheral portion of the service hole cover to the convex portion with the adhesive.

  According to this service hole cover bonding method, when the outer peripheral portion is pressed against the convex portion to bond them, the operator can easily grasp the bonding position by touching the convex portion through the outer peripheral portion. be able to. Thereby, workability | operativity at the time of adhesion | attachment of a service hole cover is securable.

    Further, as described above, the convex portion is convex on the vehicle inner side and is higher than the general portion around the convex portion. Therefore, the convex portion can be bonded with the outer peripheral portion being more closely attached to the convex portion. . Therefore, if the operator presses the outer peripheral portion along the convex portion, a desired adhesion state between the outer peripheral portion and the convex portion can be obtained, so that the sealability of the service hole cover can be ensured. Further, since it is not necessary to visually check the adhesion state of the service hole cover after the bonding operation, workability at the time of bonding the service hole cover can be ensured.

  7. The service hole cover bonding method according to claim 7, wherein in the adhesive application step of the service hole cover bonding method according to claim 6, a part of a jig capable of feeding the adhesive is replaced with the convex portion. The jig is moved along the convex portion while feeding the adhesive from the front end of the jig while the tip of the jig is positioned with respect to the convex portion. It is the method of apply | coating the said adhesive agent to a part.

  According to this bonding method of the service hole cover, since the adhesive is applied to the convex portion with the tip of the jig positioned with respect to the convex portion, the adhesive can be applied to the convex portion with higher accuracy.

  The service hole cover adhering method according to claim 8, wherein in the adhesive application step of the service hole cover adhering method according to claim 6, the door inner is configured to form an unevenness continuous with the convex portion. In a state where a part of a jig capable of feeding the adhesive is brought into contact with a recess formed in the panel and the front end of the jig is positioned with respect to the convex part, the adhesive starts from the front end of the jig. The jig is moved along the concave portion while feeding the adhesive, and the adhesive is applied to the convex portion.

  According to this bonding method of the service hole cover, since the adhesive is applied to the convex portion with the tip of the jig positioned with respect to the convex portion, the adhesive can be applied to the convex portion with higher accuracy.

  As described above in detail, according to the present invention, it is possible to achieve both the sealing performance of the service hole cover and the workability during bonding.

1 is an exploded side view of a vehicle door to which a service hole seal structure according to a first embodiment of the present invention is applied. FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. 1, and is an enlarged cross-sectional view of a main part showing a state where a service hole cover is bonded to a door inner panel. It is a figure corresponding to FIG. 2 which shows a mode that the service hole cover shown in FIG. 1 is adhere | attached on a door inner panel using a jig | tool. It is a figure corresponding to FIG. 2 which shows the seal structure of the service hole which concerns on 2nd embodiment of this invention. It is a figure corresponding to FIG. 2 which shows a mode that the service hole cover shown in FIG. 4 is adhere | attached on a door inner panel using a jig | tool. It is a figure corresponding to FIG. 2 which shows the seal structure of the service hole which concerns on 3rd embodiment of this invention. It is a figure corresponding to FIG. 2 which shows the modification of the seal structure of the service hole which concerns on 4th embodiment of this invention.

[First embodiment]
First, a first embodiment of the present invention will be described.

  Note that an arrow UP, an arrow FR, and an arrow IN shown in the drawings respectively indicate the vehicle vertical direction upper side, the vehicle front-rear direction front side, and the vehicle width direction inner side (left side).

  A vehicle door 60 shown in FIG. 1 is applied with the service hole seal structure 10 according to the first embodiment of the present invention, and is configured as a right front side door of a vehicle such as a passenger car, for example. Yes. The vehicle door 60 includes a door inner panel 12 and a service hole cover 14.

  The door inner panel 12 is formed with a service hole 16 that is used when a device such as a window regulator (not shown) is attached to the interior of the vehicle door 60 or when this device is maintained.

  The door inner panel 12 is formed with an annular convex portion 18 so as to surround the service hole 16. As shown in FIG. 2, the convex portion 18 is convex on the inner side of the vehicle, and is formed by stamping when the door inner panel 12 is press-molded.

  On the other hand, the service hole cover 14 shown in FIG. 1 is disposed on the vehicle inner side of the door inner panel 12 and is formed of a foam material. Moreover, the outer peripheral part 20 of this service hole cover 14 is formed in the position which opposes the convex part 18 and a door thickness direction (vehicle width direction), as FIG. 2 shows.

  Next, a method for bonding the service hole cover 14 to the door inner panel 12 will be described.

  First, as shown in FIG. 2, an adhesive 26 is applied to the top of the convex portion 18 (adhesive application step).

  At this time, as shown in FIG. 3, the adhesive 26 may be applied to the top of the convex portion 18 using a jig 22 capable of feeding the adhesive 26. That is, first, the leg portion 24 formed on the jig 22 is brought into contact with the side surface of the convex portion 18, and the tip of the jig 22 is positioned with respect to the top portion of the convex portion 18. Then, in this state, while feeding the adhesive 26 from the tip of the jig 22, the jig 22 may be moved along the convex portion 18 to apply the adhesive 26 to the top of the convex portion 18. .

  Subsequently, as indicated by an imaginary line (two-dot chain line) in FIG. 1, the service hole cover 14 is disposed inside the door inner panel 12 with the service hole cover 14 positioned, and the service hole 16 is formed by the service hole cover 14. cover.

  Then, as shown in FIG. 2, a pressing force is applied to the outer peripheral portion 20 of the service hole cover 14 with a jig such as a finger or a roller. At this time, the outer peripheral portion 20 is sequentially pressed in the circumferential direction (adhesion step).

  As described above, the outer peripheral portion 20 is adhered to the convex portion 18 in the circumferential direction by the adhesive 26, and the service hole cover 14 is fixed to the door inner panel 12.

  Next, the operation and effect of the first embodiment of the present invention will be described.

  According to the service hole sealing structure 10, the service hole cover 14 is formed of a foam material. Accordingly, the service hole cover 14 can be prevented from being wrinkled or broken, and the sealing performance of the service hole cover 14 can be ensured. Further, since the rigidity of the service hole cover 14 is ensured, workability at the time of bonding the service hole cover 14 can also be ensured.

  By the way, since the service hole cover 14 formed of a foam material is generally opaque, it may be difficult to visually check the bonding position and the bonding state of the service hole cover 14.

  However, according to the service hole seal structure 10, the door inner panel 12 is formed with a convex portion 18 that protrudes inward of the vehicle at a position facing the outer peripheral portion 20 of the service hole cover 14. Therefore, when the outer peripheral portion 20 is pressed against the convex portion 18 and bonded, the operator can easily grasp the bonding position by touching the convex portion 18 via the outer peripheral portion 20. Thereby, workability | operativity at the time of adhesion | attachment of the service hole cover 14 is securable.

  In addition, as described above, the convex portion 18 has a convex shape on the vehicle inner side and is higher than the general portion around the convex portion 18. Therefore, the convex portion 18 is bonded in a state where the outer peripheral portion 20 is more closely attached to the convex portion 18. be able to. In particular, since the contact area with the outer peripheral portion 20 is reduced by making the adhesive portion with the outer peripheral portion 20 the convex portion 18, the outer peripheral portion 20 can be bonded to the convex portion 18 with a higher pressing force.

  Therefore, if the operator presses the outer peripheral portion 20 along the convex portion 18, a desired adhesion state between the outer peripheral portion 20 and the convex portion 18 can be obtained, so that the sealability of the service hole cover 14 is ensured. Can do. In addition, this eliminates the need to visually check the bonding state of the service hole cover 14 after the bonding operation, and therefore ensures workability when the service hole cover 14 is bonded.

  Further, as described above, when the adhesive 26 is applied using the jig 22, the adhesive 26 is applied to the convex portion 18 with the tip of the jig 22 positioned with respect to the convex portion 18. The adhesive 26 can be applied to the convex portion 18 with higher accuracy.

  Furthermore, since the convex part 18 is formed in the door inner panel 12, this convex part 18 plays the role of a bead, Therefore The rigidity of the door inner panel 12 can be improved. Thereby, the bending of the door inner panel 12 at the time of bonding the service hole cover 14 can be suppressed, and workability at the time of bonding the service hole cover 14 can be improved.

  In addition, although the convex part 18 was formed by stamping, you may be comprised by the post-projection ridge part etc. which were comprised separately from the door inner panel 12. FIG.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

  The service hole seal structure 30 according to the second embodiment of the present invention shown in FIG. 4 is modified as follows with respect to the service hole seal structure 10 according to the first embodiment of the present invention described above. Yes.

  That is, on the service hole 16 side with respect to the convex portion 18, a concave portion 32 that constitutes concave and convex continuous with the convex portion 18 is formed. The recess 32 is formed on the door inner panel 12 by stamping in the same manner as the protrusion 18.

  With such a configuration, when the door inner panel 12 is formed by press molding, the molding elongation section of the convex portion 18 is substantially increased by the concave portion 32, so that the moldability of the door inner panel 12 is improved. Can do.

  The recess 32 may be formed on the opposite side of the service hole 16 with respect to the protrusion 18.

  Further, as shown in FIG. 5, the above-described jig 22 may be used. That is, the leg portion 24 of the jig 22 is brought into contact with the side surface of the concave portion 32, and the tip of the jig 22 is positioned with respect to the top portion of the convex portion 18. Then, in this state, while feeding the adhesive 26 from the tip of the jig 22, the jig 22 may be moved along the convex portion 18 to apply the adhesive 26 to the top of the convex portion 18. . If it does in this way, the adhesive agent 26 can be apply | coated to the convex part 18 more accurately.

[Third embodiment]
Next, a third embodiment of the present invention will be described.

  The service hole seal structure 40 according to the third embodiment of the present invention shown in FIG. 6 is modified as follows with respect to the service hole seal structure 10 according to the first embodiment of the present invention described above. Yes.

  That is, concave portions 42 </ b> A and 42 </ b> B are formed on the service hole 16 side and the opposite side of the service hole 16 with respect to the convex portion 18. The recesses 42 </ b> A and 42 </ b> B are formed by stamping on the door inner panel 12, similarly to the projection 18.

  If comprised in this way, the height of the convex part 18 with respect to the general part of the periphery of the convex part 18 can be suppressed, ensuring the height from the bottom part of concave part 42A, 42B to the top part of the convex part 18. FIG. . Thereby, the moldability of the door inner panel 12 can be improved more.

[Fourth embodiment]
Next, a fourth embodiment of the present invention will be described.

  The service hole seal structure 50 according to the fourth embodiment of the present invention shown in FIG. 7 is modified in the following configuration from the service hole seal structure 10 according to the first embodiment of the present invention described above. Yes.

  That is, an engagement recess 52 that can engage with the protrusion 18 is formed in the outer peripheral portion 20 by punching. Further, the height dimension A of the convex portion 18 is set larger than the depth dimension B of the engaging concave portion 52.

  With this configuration, the service hole cover 14 can be positioned with respect to the door inner panel 12 by engaging the engagement recess 52 with the projection 18. Moreover, since this engagement recessed part 52 is visually recognized as a convex part from the vehicle inner side, an adhesion | attachment site | part can be estimated and workability | operativity can be improved.

  Moreover, the top part of the convex part 18 and the bottom part of the engaging recessed part 52 can be adhere | attached, suppressing the bottoming of the general part around the convex part 18 and the general part around the engaging recessed part 52. Thereby, the sealing performance of the service hole cover 14 can be ensured.

  Next, a modification common to the above embodiments will be described.

  In the said embodiment, although the convex part 18 was formed in cyclic | annular form, for example, when it cannot be formed in cyclic | annular form on account of space etc., it does not need to be formed in cyclic | annular form. In this case, it is desirable that the sealing property is ensured in the portion where the convex portion 18 is interrupted.

  Further, although one large service hole 16 is formed in the door inner panel 12, a plurality of service holes may be formed. In this case, the service hole cover 14 is preferably configured to cover the plurality of service holes.

  The vehicle door 60 is configured as a front side door, but may be configured as a rear side door, a back door, or the like.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

  Moreover, the embodiment which can be combined among said each embodiment may be combined suitably.

10, 30, 40, 50 Seal structure 12 Door inner panel 14 Service hole cover 16 Service hole 18 Convex part 20 Outer part 22 Jig 24 Leg part (a part of jig)
26 Adhesive 32, 42A, 42B Recess 52 Engagement Recess

Claims (8)

A convex portion that is provided on the door inner panel so as to surround a service hole formed on the door inner panel, and that is convex on the inner side of the vehicle,
A service hole cover that is disposed on the vehicle inner side of the door inner panel and covers the service hole, is formed of a foam material, and an outer peripheral portion thereof faces the convex portion,
An adhesive that bonds the convex portion and the outer peripheral portion;
Service hall seal structure with It is formed on at least one side opposite to the service hole side and the service hole with respect to the convex part, and includes a concave part that constitutes an uneven part continuous with the convex part,
The convex part and the concave part are each formed by stamping on the door inner panel,
The service hole seal structure according to claim 1. The recesses are respectively formed on the service hole side and the service hole opposite side with respect to the protrusions.
The seal structure of the service hole according to claim 2. The outer peripheral portion is formed by punching, and includes an engaging concave portion engaged with the convex portion.
The seal structure of the service hole as described in any one of Claims 1-3. The height dimension of the convex part is set larger than the depth dimension of the engagement concave part,
The seal structure of the service hole of Claim 4. An adhesive application step of applying an adhesive to a convex portion that is provided in the door inner panel so as to surround a service hole formed in the door inner panel and that protrudes toward the inside of the vehicle;
A service hole cover formed of a foam material is disposed on the vehicle inner side of the door inner panel, the service hole cover covers the service hole, and an outer periphery of the service hole cover is formed on the convex portion by the adhesive. Bonding process to bond;
Method for bonding service hole covers with In the adhesive application step, a part of a jig capable of feeding the adhesive is brought into contact with the convex part, and the tip of the jig is positioned with respect to the convex part, and then from the tip of the jig. The jig is moved along the convex portion while feeding the adhesive, and the adhesive is applied to the convex portion.
The method for adhering a service hole cover according to claim 6. In the adhesive application step, a part of a jig capable of feeding the adhesive is brought into contact with a concave portion formed in the door inner panel so as to constitute a continuous irregularity with the convex portion. While the tip of the jig is positioned with respect to the convex portion, the jig is moved along the concave portion while feeding the adhesive from the tip of the jig, and the adhesive is applied to the convex portion. ,
The method for adhering a service hole cover according to claim 6.

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