JP5407682B2 - Mounting seal structure for car body exterior parts - Google Patents

Description

  The present invention relates to a mounting seal structure for a vehicle body exterior part that seals and attaches a vehicle body exterior part to a vehicle body such as an automobile.

  Patent Document 1 describes a roof rail support in which a support body is grasped from below by an underlay useful as a seal member.

  By the way, when attaching a vehicle body exterior part to a vehicle body panel, an insertion member such as an insertion pin protruding from the vehicle body exterior part may be inserted into an insertion hole of the vehicle body panel to perform positioning or the like. In such a structure, it is desirable to ensure water-stopping of the insertion hole and prevent water from entering from the insertion hole.

  However, if the seal member (underlay) of Patent Document 1 is simply applied to the structure in which the insertion member of the vehicle body exterior part is inserted into the insertion hole of the vehicle body panel in this way, for example, the direction in which the roux frame is separated from the vehicle body panel When moved to the position, the seal member may be separated from the vehicle body panel and the water stoppage may not be maintained.

JP 2000-43651 A

  In view of the above-described facts, the present invention has an object to obtain a mounting seal structure for a vehicle body exterior component that can ensure water-stopping of an insertion hole of the vehicle body panel even when the vehicle body exterior component moves away from the vehicle body panel. .

According to the first aspect of the present invention, a positioning pin that is provided in the vehicle body exterior component and is inserted into an insertion hole of the vehicle body panel to position the vehicle body exterior component on the vehicle body panel, and the vehicle body panel that is provided in the vehicle body exterior component. A cushion member disposed between the seal pin , a seal portion provided around the positioning pin and sealed between the vehicle body panel, and a seal portion provided between the seal portion and the cushion member. Is integrated with the cushion member, and has a low-rigidity portion that is lower in rigidity than the cushion member , and a cap portion that is continuous from the seal portion and covers the positioning pin .

The mounting seal structure of the vehicle body exterior parts, the insertion hole of the vehicle body panel, by the positioning pin of the vehicle body exterior parts are inserted, car Karadagaiso component is positioned in the vehicle body panel. Further, a cushion member is disposed between the vehicle body exterior part and the vehicle body panel, and exhibits a cushioning action.

The positioning pin is covered with a cap portion continuous from the seal portion. In addition, since the seal portion provided around the positioning pin is in close contact with the vehicle body panel, waterproofing between the seal portion and the vehicle body panel is ensured. Since the seal portion and the cushion member are integrated by a low-rigidity portion that is lower in rigidity than the cushion member, even when the vehicle body exterior part moves away from the vehicle body panel, a part of this force is It is absorbed by the deformation of the low rigidity portion and acts on the seal portion. Since the force in the direction of separating the seal portion from the vehicle body panel is relieved, the close contact state with the vehicle body panel can be maintained, and the water stoppage can also be maintained. For example, even after the cushion member is permanently deformed to a position away from the vehicle body panel, the water stoppage can be maintained.

  Note that the low-rigidity part is “lower-rigidity” than the cushion member means that the general part of the cushion member, that is, the cushion member, is lower than the part that provides cushioning between the vehicle body exterior part and the vehicle body panel. Say that it is rigid.

According to a second aspect of the present invention, in the first aspect of the present invention, a gap is set between the cushion member and the seal portion, and the low-rigidity portion is disposed between the cushion member and the seal portion in the gap. And a bridge section spanned between the two.

  Thereby, a low-rigidity part can be provided with a simple structure.

  According to a third aspect of the present invention, in the first aspect of the invention, the low-rigidity portion includes a thin portion that is thinner than the cushion member between the cushion member and the seal portion. Yes.

  Thereby, a low-rigidity part can be provided with a simple structure.

  According to a fourth aspect of the invention, there is provided the adhesive member according to any one of the first to third aspects, wherein the seal portion is bonded to the vehicle body panel.

  Since the seal portion is bonded to the vehicle body panel by the adhesive member, it becomes possible to stop water more reliably by the seal portion.

  According to a fifth aspect of the invention, there is provided a pressing member according to the fourth aspect, wherein the pressing member is provided between the seal portion and the vehicle body exterior component and presses the adhesive member against the vehicle body panel.

  By pressing the adhesive member against the vehicle body panel by the pressing member, the adhesive force of the adhesive member to the vehicle body panel can be secured higher.

  The invention according to claim 6 is the invention according to claim 5, wherein the pressing member is formed to be thicker than a set gap between the seal portion and the vehicle body exterior component, It is an elastic member fixed to one side.

  Since the elastic member is formed thicker than the set gap between the seal part and the vehicle body exterior part, the elastic member is compressed between the seal part and the vehicle body exterior part, and the reaction force obtains a force to press the adhesive member against the vehicle body panel. It is done.

  In addition, since the elastic member is fixed to one of the seal portion and the vehicle body exterior part and is not fixed to both, the force in the direction of separating the vehicle body exterior part from the vehicle body panel is sealed via the elastic member. Does not act on the part. Thereby, it is possible to ensure a high water-stopping property of the seal portion.

  According to a seventh aspect of the invention, in the fifth aspect of the invention, the pressing member has a projecting length longer than a set gap between the seal portion and the vehicle body exterior component, and is directed from the seal portion to the vehicle body exterior component. It is the protruding convex part.

  Since the convex part has a projection length longer than the set gap between the seal part and the vehicle body exterior part, the convex part is compressed between the seal part and the vehicle body exterior part, and the reaction force causes the adhesive member to be pressed against the vehicle body panel. Can be obtained.

  Further, since the convex portion protrudes from the seal portion toward the vehicle body exterior part, the force in the direction of separating the vehicle body exterior component from the vehicle body panel does not act on the seal portion via the elastic member. Thereby, it is possible to ensure a high water-stopping property of the seal portion.

  Since the present invention has the above-described configuration, even when the vehicle body exterior part moves in a direction away from the vehicle body panel, it is possible to ensure the water stoppage of the insertion hole of the vehicle body panel.

It is a perspective view which shows the roof rack which is a vehicle body exterior component which concerns on this invention. It is a perspective view which expands and shows the attachment leg part of the roof rack which concerns on this invention. It is the III-III sectional view taken on the line of FIG. 2 which shows the attachment leg part of the roof rack to which the attachment seal structure of 1st Embodiment of this invention was applied. It is sectional drawing which expands and shows the positioning pin of a normal state, and its vicinity in the attachment seal structure of 1st Embodiment of this invention. It is a top view which shows a seal member and its vicinity in the attachment seal structure of 1st Embodiment of this invention. It is sectional drawing which expands and shows the positioning pin in the state which the external force acted in the attachment seal structure of 1st Embodiment of this invention, and its vicinity. It is a top view of the seal member which shows another example in the attachment seal structure of a 1st embodiment of the present invention, and its neighborhood. It is a top view of the seal member which shows another example in the attachment seal structure of a 1st embodiment of the present invention, and its neighborhood. (A) is a sectional view of a seal member and its vicinity showing still another example in the mounting seal structure of the first embodiment of the present invention, and (B) is an enlarged view of the rib part of (A) and its vicinity. It is sectional drawing shown. It is sectional drawing which expands and shows the positioning pin of a normal state, and its vicinity in the attachment seal structure of a comparative example.

  FIG. 3 shows a mounting seal structure (hereinafter referred to as “mounting seal structure”) 12 for a vehicle body exterior component according to an embodiment of the present invention. As shown in FIG. 1, the attachment seal structure 12 is intended for a roof rack 22 attached to a roof panel 14 of a vehicle body as a vehicle body exterior part, that is, a part attached to the outside of the vehicle body.

  The roof rack 22 is formed in a substantially long shape extending in the vehicle front-rear direction when attached to the roof panel 14. The roof rack 22 is provided with a plurality of attachment leg portions 24 (in the present embodiment, a total of three at both ends in the longitudinal direction and substantially in the central portion) that are in contact with the roof panel 14. The mounting leg 24 acts as a pedestal for mounting to the roof panel 14. The three mounting legs 24 in the present embodiment have different structures depending on the shape and the like of the roof panel 14, but the basic operation is the same. 24 (an attachment leg on the right side in FIG. 1) will be described as an example.

  As shown in detail in FIG. 4, the mounting leg portion 24 has a facing surface 24S facing the panel surface 14S of the roof panel 14, and the opposite side of the mounting leg portion 24S to the facing surface 24S (to the vehicle). The outer side in the attached state is covered with a removable cover 24C. An insertion hole 25 is formed at a predetermined position on the facing surface 24S. Further, the fastening hole 16 is formed in the roof panel 14 at a position corresponding to the insertion hole 25 when the roof rack 22 is attached, and a fastening nut 20 is attached. Therefore, in the present embodiment, the insertion hole 25 and the fastening hole 16 (fastening nut 20) are aligned with the cover 24C removed from the mounting leg 24, and fastened to the fastening nut 20 from the outer side of the roof rack 22. The roof rack 22 is fixedly attached to the roof panel 14 by tightening the bolts 18. Thereafter, the cover 24C is attached to the mounting leg 24 to cover the fastening bolt 18 and the like. In addition, the structure which attaches the attachment leg part 24 to the roof panel 14 is not limited to this, For example, after making a stud bolt protrude from the full panel 14, and inserting this stud bolt into the insertion hole formed in the roof rack 22, it tightens. A structure in which the nut is fastened to the stud bolt may be used.

  From the mounting leg portion 24, one or a plurality of (in this embodiment, one) positioning pins 26 formed in a substantially cylindrical shape project. On the other hand, the roof panel 14 is formed with a positioning hole 44 into which the positioning pin 26 is inserted. The positioning pin 26 and the positioning hole 44 are examples of the insertion member and the insertion hole of the present invention, respectively. In the present embodiment, the roof rack 22 is attached to the roof panel 14 by inserting the positioning pin 26 into the positioning hole 44. It can be positioned with respect to it. On the distal end side of the positioning pin 26, a tapered portion 26T having an outer diameter gradually decreased toward the distal end is formed, and insertion into the positioning hole 44 is easy.

  A gap SP1 is formed between the panel surface 14S of the roof panel 14 and the opposing surface 24S of the mounting leg 24. A cushion member 28 provided on the mounting leg 24 is disposed in the gap SP1. ing. The cushion member 28 is formed of a material that is elastically deformed to a predetermined thickness T1 that is thinner than the interval D1 of the gap SP1. In a normal state, there is a further minute gap between the cushion member 28 and the roof panel 14, but when the mounting leg 24 approaches the roof panel 14, the cushion member 28 is opposed to the panel surface 14 </ b> S and the facing surface 24 </ b> S. Compressed between them and exerts a cushioning action. In this way, the portion where the cushion member 28 has a predetermined thickness T1 and exhibits a cushioning action is referred to as a general portion 28G of the cushion member 28.

  The positioning pin 26 is covered with a substantially cylindrical cap portion 30 made of the same material as the cushion member 28. Further, the positioning pin 26 is positioned from the mounting leg portion 24 side (upper side in FIG. 4) of the cap portion 30. An annular seal portion 32 is integrally extended toward the outer peripheral side as viewed from 26. The seal portion 32 is also located between the panel surface 14S of the roof panel 14 and the facing surface 24S of the mounting leg portion 24. The cap part 30 and the seal part 32 have substantially the same thickness as the general part 28G. The cap portion 30 is also formed with a tapered portion 30T corresponding to the tapered portion 26T of the positioning pin 26, so that the cap portion 30 can be easily inserted into the positioning hole 44.

  As shown also in FIG. 5, an annular gap SP <b> 2 is formed between the seal portion 32 and the cushion member 28 when viewed in the axial direction of the positioning pin 26. One or a plurality of bridge portions 34 (four in the present embodiment equally in the circumferential direction) are spanned, and the seal portion 32 and the cushion member 28 are connected and integrated by the bridge portion 34. . In particular, in the present embodiment, the seal portion 32 and the cap portion 30 are all integrally formed from the cushion member 28 via the bridge portion 34, and constitute an integral cushion member as a whole. As can be seen from FIG. 4, the thickness T2 of the bridge portion 34 is made thinner than the thickness of the general portion 28G, which is a low-rigidity portion according to the present invention.

  An annular adhesive member 36 surrounding the positioning pin 26 is disposed in the seal portion 32 at a position between the roof panels 14, and the seal portion 32 is bonded to the roof panel 14. In the present embodiment, a double-sided adhesive tape is used as the adhesive member 36, but the adhesive member 36 is not limited to this, and it is sufficient that the seal portion 32 can be maintained in close contact with the roof panel 14 reliably. For example, an adhesive may be applied directly to the seal portion 32 and bonded to the roof panel 14. The adhesive member 36 secures the adhesiveness of the seal portion 32 to the roof panel 14, and also secures the waterproofness between them.

  An annular sponge rubber 38 surrounding the positioning pin 26 is disposed between the seal portion 32 and the mounting leg portion 24. The sponge rubber 38 is an example of the elastic member (pressing member) of the present invention, and the thickness in the natural state (the state in which the sponge rubber 38 is not deformed in the thickness direction) is the seal portion in the normal state where the roof rack 22 is attached to the roof panel 14. It is made thicker than the set gap D2 between 32 and the mounting leg portion 24. The sponge rubber 38 is in contact with both the seal portion 32 and the mounting leg portion 24. Accordingly, the sponge rubber 38 is sandwiched in the thickness direction by the mounting leg portion 24 and the seal portion 32 and is elastically compressed, and exerts a force for attaching the seal portion 32 to the roof panel 14 by the reaction force.

  Further, the sponge rubber 38 is attached only to either the seal portion 32 or the attachment leg portion 24 (in this embodiment, the attachment leg portion 24). Thereby, when the mounting leg portion 24 moves in a direction away from the seal portion 32, the force in this direction does not act on the seal portion 32.

  Next, the operation of the mounting seal structure 12 of this embodiment will be described.

  As shown in FIGS. 3 and 4, in the mounting seal structure 12 of the present embodiment, the positioning pin 26 is inserted into the positioning hole 44, and the roof rack 22 is positioned at a predetermined position of the roof panel 14. The roof rack 22 is fixedly attached to the roof panel 14 by the fastening bolts 18 and the fastening nuts 20.

  When the roof rack 22 is attached to the roof panel 14 in this manner, the attachment leg 24 is pressed against the roof panel 14 by the fastening force and gravity between the fastening bolt 18 and the fastening nut 20. Since a gap is formed between the adhesive member 36 and the roof panel 14, the adhesive member 36 cannot be pressed against the roof panel 14 with the above-described fastening force and gravity.

  However, in the present embodiment, the sponge rubber 38 is disposed in contact between the mounting leg portion 24 and the seal portion 32, and the reaction force of the sponge rubber 38 that is elastically compressed when the roof rack is attached causes the seal portion 32 to be roofed. This acts as a pressing force toward the panel 14. That is, by using this reaction force, it is possible to secure a force for bonding the seal portion 32 to the roof panel 14 by the bonding member 36. The reaction force is sufficient if the seal portion 32 can be pressed against the roof panel 14 in a certain period of the initial state, and after the seal portion 32 is bonded to the roof panel 14 by the adhesive force of the adhesive member 36, The sponge rubber 38 may not have a pressing force acting on the seal portion 32. For example, the sponge rubber 38 may be permanently deformed in a compressed state after a certain period.

  When the roof rack 22 is attached to the roof panel 14 in this way, the cushion member 28 is positioned between the facing surface 24S of the attachment leg 24 and the panel surface 14S of the roof panel 14 (gap SP1). For example, when the mounting leg portion 24 approaches the roof panel 14, the cushion member 28 is compressed in the thickness direction and exhibits a cushioning action.

  An external force in the direction of separating the roof panel 14 (the direction of the arrow F1 shown in FIG. 6) may act on the roof rack 22 attached to the roof panel 14. Due to this external force, the mounting leg 24 is also pulled in the direction of the arrow F <b> 1 and tends to be separated from the roof panel 14. Here, in FIG. 10, the low rigidity portion according to the present application is not provided as the attachment seal structure 112 of the comparative example (that is, the cushion member 28 is continuous with a constant thickness from the general portion 28 </ b> G to the seal portion 32. ) The structure is shown. In addition, in a comparative example, it is set as the same structure as this embodiment except this.

  In the mounting seal structure 112 of the comparative example, when an external force (see arrow F1) in the direction in which the roof panel 14 is separated acts as described above, this directly acts on the seal portion 32, so that an excessive load is applied to the seal portion 32. There is a risk of taking.

  On the other hand, in this embodiment, the cushion member 28 and the seal portion 32 are combined and integrated by a bridge portion 34 having a rigidity lower than that of the cushion member 28. Therefore, as shown in FIG. 6, even if the mounting leg portion 24 moves in the direction of the arrow F1 and the cushion member 28 also moves in the direction of the arrow F1 along with this, the bridge portion 34 is deformed. The force (the tensile force acting from the cushion member 28) that moves the lens in the direction of the arrow F1 is absorbed by the bridge portion 34 due to the deformation and becomes slight. Moreover, the seal portion 32 is bonded and fixed to the roof panel 14 by the adhesive member 36. Therefore, the seal portion 32 does not leave the roof panel 14 even if the slight force in the direction of the arrow F1 acts. For this reason, the seal portion 32 is in close contact with the roof panel 14 around the positioning pin 26, and the state where the positioning hole 44 and the water-stopping property around the positioning hole 44 are secured can be maintained.

  The sponge rubber 38 is attached only to one of the seal part 32 and the attachment leg part 24 (in this embodiment, the attachment leg part 24). For this reason, even if said external force acts, the force which pulls the seal part 32 away from the roof panel 14 does not act on the seal part 32 from the sponge rubber 38. Also by this, the state where the seal portion 32 is in close contact with the roof panel 14 around the positioning pin 26, that is, the state in which the water blocking property is secured can be maintained.

  The sponge rubber 38 may not be attached (not fixed) to the seal portion 32 and the attachment leg portion 24. In this case, for example, the roof rack 22 is attached to the vehicle body panel 24. There is a possibility that the sponge rubber 38 may be misaligned before the attachment. On the other hand, if the sponge rubber 38 is attached to one of the seal part 32 and the attachment leg part 24, the position is not displaced.

  In the above description, the four bridge portions 34 between the seal portion 32 and the cushion member 28 are given as the low-rigidity portion of the present invention. However, the number of the bridge portions 34 is not limited to this, and for example, FIG. As shown, there may be three, two or five or more. In any case, by forming the bridge portion 34, the low-rigidity portion can be provided with a simple structure.

  Further, the low rigidity portion is not limited to these bridge portions 34. For example, as yet another example of the low rigidity portion, as shown in FIG. 8, an annular gap SP2 (see FIGS. 5 and 7) is not formed between the seal portion 32 and the cushion member 28, and the general portion 28G is formed. The structure connected with the thin-walled annular thin part 40 may be sufficient. The annular thin portion 40 can also be integrally formed with the seal portion 32, the cushion member 28, and the cap portion 30, and the structure of the low rigidity portion can be simplified. Further, as shown in FIG. 5 and FIG. 6, even when the gap SP2 between the seal portion 32 and the cushion member 28 is merely a bridge structure, the thickness is almost the same as that of the general portion 28G. Part.

  The cushion member 28 and the seal portion 32 (up to the cap portion 30) do not necessarily have to be integrally formed with a low-rigidity portion (the bridge portion 34 or the annular thin portion 40). For example, the cushion member 28 and the seal portion Alternatively, the bridge portion 34 and the annular thin portion 40 may be joined to the cushion member 28 and the seal portion 32 in a later process. However, it is preferable to integrally form the cushion member 28 and the seal portion 32 as in the above embodiment because it is not necessary to integrate them in a later process and the number of parts is reduced.

  Furthermore, the pressing member of the present invention is not limited to the sponge rubber 38 described above. That is, if it is a member having elasticity and a thickness that is thicker than the set gap D2 (see FIG. 4), it is sandwiched in the thickness direction between the mounting leg portion 24 and the seal portion 32 and elastically compressed, Since the elastic reaction force is generated, a force for attaching the seal portion 32 to the roof panel 14 can be exhibited.

  Furthermore, the pressing member does not need to be a separate body from the seal portion 32, and is, for example, a rib portion 42 that protrudes from the seal portion 32 toward the facing surface 24S of the mounting leg portion 24 as shown in FIG. May be. The rib portion 42 is an example of a convex portion of the present invention, and has a height H1 higher than the set gap D2 as shown by a two-dot chain line in a natural state (a state where the rib portion 42 is not deformed). For this reason, it is pinched | interposed into the thickness direction by the attachment leg part 24 and the seal | sticker part 32, a front-end | tip part is elastically compressed, and the force which presses the seal | sticker part 32 against the roof panel 14 by the elastic reaction force can be exhibited. The rib portion 42 may be formed continuously (annularly) in the circumferential direction along the seal portion 32, or may be formed discontinuously in the circumferential direction.

  As in the case of the sponge rubber 38, it is sufficient that the rib portion 42 can press the seal portion 32 against the roof panel 14 in a certain period of the initial state. For example, the rib portion 42 may be permanently deformed in a compressed state after a certain period. And since the rib part 42 is formed in the seal part 32, the force of the direction which leaves | separates the attachment leg part 24 from the roof panel 14 does not act on the seal part 32, but the state which secured the water stop by the seal part 32 Can be maintained.

  In the above description, the roof rack 22 is cited as the vehicle body exterior component according to the present invention. However, the vehicle body exterior component is not limited to this, and in short, has a structure (seal structure) that is desired to be water-stopped. And if it is a vehicle body exterior part which external force acts on this seal structure part at least, the fall of the sealing performance resulting from external force can be suppressed, and a water stop can be ensured. The insertion member for the vehicle body exterior component is not limited to the positioning pin described above, and may be any member that can be inserted into the insertion hole formed on the vehicle body panel side.

12 Mounting seal structure 14 Roof panel (body panel)
22 Roof rack (car body exterior parts)
24 Body panel 24 Mounting leg 26 Positioning pin (insertion member)
28 Cushion member 28G General part 30 Cap part 32 Seal part 34 Bridge part (thin part, low rigidity part)
36 Adhesive member 38 Sponge rubber (elastic member, pressing member)
40 Annular thin part (thin part, low rigidity part)
42 Ribs (convex parts, pressing members)
44 Positioning hole (insertion hole)
SP2 Gap D2 Setting gap

Claims (7)

A positioning pin that is provided in the vehicle body exterior component and is inserted into an insertion hole of the vehicle body panel to position the vehicle body exterior component on the vehicle body panel ;
A cushion member provided in the vehicle body exterior component and disposed between the vehicle body panels;
A seal portion provided around the positioning pin and sealed between the vehicle body panel;
A low rigidity portion provided between the seal portion and the cushion member, integrating the seal portion with the cushion member, and having a lower rigidity than the cushion member;
A cap portion continuous from the seal portion and covering the positioning pin;
A mounting seal structure for vehicle body exterior parts having A gap is set between the cushion member and the seal portion,
The mounting seal structure for a vehicle body exterior part according to claim 1, wherein the low-rigidity portion includes a bridge portion that spans the cushion member and the seal portion in the gap.   The mounting seal structure for a vehicle body exterior part according to claim 1 or 2, wherein the low-rigidity portion includes a thin portion that is thinner than the cushion member between the cushion member and the seal portion. .   The mounting seal structure for a vehicle body exterior part according to any one of claims 1 to 3, further comprising an adhesive member for bonding the seal portion to the vehicle body panel.   The mounting seal structure for a vehicle body exterior part according to claim 4, further comprising a pressing member that is provided between the seal portion and the vehicle body exterior part and presses the adhesive member against a vehicle body panel.   The vehicle body exterior part according to claim 5, wherein the pressing member is an elastic member that is formed thicker than a set gap between the seal part and the vehicle body exterior part and is fixed to one of the seal part and the vehicle body exterior part. Mounting seal structure. 6. The mounting of the vehicle body exterior part according to claim 5, wherein the pressing member is a convex part that protrudes from the seal part toward the vehicle body exterior part with a projecting length longer than a set gap between the seal part and the vehicle body exterior part. Seal structure.

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