JP2014012471A - Spoiler and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assemble an outer member and an inner member to each other with high accuracy in a spoiler.SOLUTION: A spoiler 10 includes: multiple outer engagement parts 25 which are formed on a rear surface of an outer member 12 so as to be separated from each other in a vibration direction of vibration deposition; and multiple inner engagement parts 41 which are formed at an inner member 32 so as to respectively correspond to the outer engagement parts 25. The outer engagement parts 25 and the inner engagement parts 41 are overlapped with each other in the vibration direction so as to allow both inner and outer members 12, 32 to relatively move in the vibration direction and are engaged with each other so as to restrict the inner and outer members 12, 32 to move in a direction perpendicular to the vibration direction.

Description

  The present invention relates to a spoiler attached to a vehicle and a method for manufacturing the spoiler.

  A vehicle may be provided with a spoiler such as a roof spoiler or a rear spoiler for the purpose of rectifying air during traveling or dressing up a vehicle body. The spoiler is often made of a molded product made of a thermoplastic resin, and as disclosed in Patent Document 1, is composed of an outer member mainly forming a design portion and an inner member disposed on the back side of the outer member. ing. In the spoiler, the inner member is formed with a mounting seat for holding a fixture such as a clip on the vehicle body, thereby minimizing the structure formed on the back side of the outer member, and the outer member due to the structure. Molding defects such as sink marks appearing on the design surface of the member are prevented. In the spoiler, the outer member and the inner member are joined by vibration welding.

  When manufacturing the spoiler, the outer member and the inner member that are separately molded are overlapped, and set in the first jig upside down when the vehicle body is mounted. At this time, the upper and lower portions of the bent portion of the inner member are in contact with the inner side of the bent portion formed at the rear portion of the outer member, thereby restricting the movement of the inner member toward the closed end of the bent portion. Next, the second jig is pressed against a portion of the inner member that protrudes outward from the curved portion of the outer member, and the overlapping portion of the inner member and the outer member is between the first jig and the second jig. Pinch. In this state, horizontal vibration is applied between the first jig and the second jig along the longitudinal direction of the spoiler, and the inner member and the outer member are slid with a predetermined amplitude. As a result, the contact portion between the inner member and the outer member is melted by frictional heat, and after the vibration is stopped, the molten portion is cooled and solidified, and when the inner member and the outer member are integrated, the first jig and the second jig are joined. Remove the finished product by separating them.

JP 2012-61897 A

  If the outer member and the inner member are misaligned before being sandwiched by the first and second jigs, the outer member and the inner member are also misaligned in the finished product obtained by vibration welding. For this reason, a big burden is imposed on an operator about positioning with an outer member and an inner member before vibration welding. Further, in order to eliminate the positional deviation, the inner member stacked on the outer member is supported by the support member so as to be pushed toward the closed end of the curved portion of the outer member, and the bent portion of the inner member is supported on the curved portion of the outer member. It is conceivable to position by pressing. As described above, when the bent portion of the inner member is pressed against the curved portion of the outer member by the support tool, a force acts so as to push back the inner member by the repulsive force of the curved portion, so that the inner member is supported by the plurality of support tools. There is a need. That is, in the configuration in which such a support is separately provided, there is a problem that the jig cost increases.

  That is, the present invention has been proposed in order to suitably solve these problems inherent in the conventional spoiler and the manufacturing method thereof, and the outer member and the inner member are joined with high accuracy. It aims at providing a spoiler and its manufacturing method.

In order to overcome the above-mentioned problems and achieve the intended purpose, the spoiler of the invention according to claim 1 of the present application is:
In a spoiler having an outer member and an inner member joined to the back surface of the outer member by vibration welding,
A plurality of outer engagement portions formed on the back surface of the outer member apart from each other in the vibration direction during vibration welding, and a plurality of inner engagement portions formed on the inner member corresponding to each of the outer engagement portions. And
The corresponding outer engagement portion and inner engagement portion overlap in the vibration direction so as to allow relative movement between the outer member and the inner member in the vibration direction during vibration welding, and the vibration The gist is that they are configured to engage with each other in a state in which movement in the restricting direction along the back surface of the outer member intersecting the direction is restricted.
According to the first aspect of the present invention, the inner member can be easily positioned with respect to the outer member in the regulation direction intersecting with the vibration direction by the engagement between the outer engagement portion and the inner engagement portion. Since it can weld, the position shift with an outer member and an inner member can be prevented, and it can join accurately. Moreover, since the outer engagement portion provided on the outer member and the inner engagement portion provided on the inner member are engaged, it is possible to reduce the number of support tools for positioning during vibration welding, and the equipment required for vibration welding is reduced. It can be simplified.

In the invention which concerns on Claim 2, the said outer engagement part is provided in the outer connection part projected and formed in the back surface of the said outer member,
The inner engagement portion is provided in an inner connection portion formed in the inner member corresponding to the outer connection portion,
The gist is that the outer connecting portion and the inner connecting portion are mechanically fastened.
According to the invention which concerns on Claim 2, the influence on the design surface resulting from an outer engagement part can be suppressed by providing an outer engagement part in the outer connection part used for mechanical fastening with an inner member.

In the invention according to claim 3, the outer engagement portion is formed to protrude from the back surface of the outer member and extends in the regulation direction, and the engagement is formed to penetrate the plate piece in the vibration direction. With holes,
The inner engagement portion is formed to extend in the regulation direction, and is a protruding piece that can be elastically deformed in the vibration direction, and an engagement claw that is formed to extend from the tip of the protruding piece in the vibration direction. Have
The corresponding outer engagement portion and inner engagement portion are configured such that the engagement claw fits into the engagement hole, positions the outer member and the inner member in the regulation direction, and performs vibration welding in the vibration direction. The plate piece and the projecting piece overlap in the vibration direction with a gap larger than the vibration width so as to allow relative movement between the outer member and the inner member, and the engagement claw is fitted in the engagement hole. The gist is that it is configured to maintain the above.
According to the invention which concerns on Claim 3, an inner member can be appropriately positioned with respect to an outer member by the engaging part of a simple structure.

In order to overcome the above-mentioned problems and achieve the intended object, a method for producing a spoiler according to claim 4 of the present application is as follows.
In the method of manufacturing a spoiler, which is bonded to the back surface of the outer member by vibration welding that causes the inner member to vibrate relatively in a predetermined vibration direction,
The movement of the inner member in the restricting direction along the back surface of the outer member intersecting the vibration direction is regulated by the engagement of the outer engaging portion provided on the back surface of the outer member and the inner engaging portion provided on the inner member. Then, the inner member is positioned with respect to the outer member,
The inner member is joined to the outer member by relatively vibrating the inner member while maintaining the engaged state of the outer engaging portion and the inner engaging portion allowing movement in the vibration direction. This is the gist.
According to the invention which concerns on Claim 4, an inner member can be easily positioned with respect to an outer member in the regulation direction which cross | intersects a vibration direction by engagement with an outer engagement part and an inner engagement part, and it vibrates in this state. Since it can weld, the position shift with an outer member and an inner member can be prevented, and it can join accurately. Moreover, since the outer engagement portion provided on the outer member and the inner engagement portion provided on the inner member are engaged, it is possible to reduce the number of support tools for positioning during vibration welding, and the equipment required for vibration welding is reduced. It can be simplified.

In the invention according to claim 5, when the outer member and the inner member that are overlapped are sandwiched between the first jig and the second jig, the outer member and the inner member are protruded from the second jig that presses the inner member side. The positioning convex portion is fitted into a positioning hole formed in the inner member so as to become thinner from the side where the positioning convex portion is inserted toward the outer member side, and the inner member is moved in the vibration direction with respect to the outer member. The gist is that it is positioned.
According to the invention which concerns on Claim 5, when pressing down an inner member with a 2nd jig | tool, an inner member is made to engage with an outer member by engagement with the positioning convex part of a 2nd jig | tool, and the positioning hole of an inner member. It can be positioned properly.

  According to the spoiler according to the present invention, the outer member and the inner member are joined with high accuracy. According to the spoiler manufacturing method of the present invention, the outer member and the inner member can be joined with high accuracy.

It is a schematic perspective view which shows the spoiler which concerns on the suitable Example of this invention from the bottom face side. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is a schematic perspective view which decomposes | disassembles and shows the spoiler of an Example. It is a schematic perspective view which expands and shows the principal part of the outer member of an Example. It is a schematic perspective view which expands and shows the principal part of the inner member of an Example. It is explanatory drawing which shows the manufacturing process of the spoiler of an Example, Comprising: The state fractured | ruptured in the part corresponding to CC line of FIG. 1 is shown.

  Next, the spoiler according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments. In the embodiment, a rear spoiler that is installed at the upper part of a back door (rear window) that is connected to the roof portion of the vehicle and that is positioned behind the roof portion and extends to the rear of the back door will be described as an example. The direction of the spoiler is designated with reference to the vehicle. Here, in the spoiler, the overlapping direction of the outer member and the inner member is the vertical direction, the longitudinal direction of the spoiler corresponds to the left-right direction, and the short direction of the spoiler corresponds to the front-rear direction.

  The spoiler 10 according to the embodiment is formed in a horizontally long shape substantially the same size as the left and right width of the upper part of the back door (the right and left width of the rear edge of the roof portion), and the length in the front-rear direction is shorter than the left and right width. Yes. As shown in FIG. 1, the spoiler 10 includes an outer member 12 whose surface constitutes a design surface of the spoiler 10 and an inner member 32 joined to the back surface of the outer member 12 by vibration welding. In the spoiler 10 of the embodiment, the outer member 12 and the inner member 32 are relatively vibrated along the back surface of the outer member 12 in the longitudinal direction of the spoiler 10 during vibration welding. That is, in the embodiment, the left-right direction is the vibration direction at the time of vibration welding, and the front-rear direction is the regulation direction along the back surface of the outer member 12 intersecting the vibration direction. The spoiler 10 is attached to the vehicle body by fitting a fixture (not shown) attached to the attachment seat 34 provided on the inner member 32 to the vehicle body.

  The outer member 12 is a molded product made of a thermoplastic resin having a main body formed in a plate shape, and is formed in a symmetrical shape with the center in the left-right direction sandwiched as shown in FIG. The outer member 12 has a flat plate portion 13 that is formed in a substantially flat shape and constitutes the upper surface of the spoiler 10, and a bent portion 14 that continues to the rear side of the flat plate portion 13 and is bent downward from the flat plate portion 13. The bent portion 14 constitutes the rear portion of the spoiler 10 (outer member 12). The bent portion 14 is bent so that a portion where the back surfaces of the outer member 12 face each other in the vertical direction is formed, and is formed in a concave shape that opens forward. In the embodiment, the bent portion 14 and the open end portion of the bent portion 14 Are opposed in the vertical direction (see FIG. 3). In this way, the outer member 12 is so-called that the inside of the bent portion 14 cannot be punched in the back and front direction of the flat plate portion 13 (the overlapping direction of the outer member 12 and the inner member 32 described later) when the outer member 12 is formed. It is undercut. Further, a side wall portion 15 that continues from the flat plate portion 13 to the bent portion 14 is provided on the side portion of the outer member 12.

  A plurality of outer connecting portions 16 are integrally provided on the back surface of the outer member 12 so as to be spaced apart in the left-right direction, which is the vibration direction during vibration welding (see FIG. 4). The outer member 12 of the embodiment is provided with an outer connecting portion 16 at each of the end portions in the left-right direction, and the pair of outer connecting portions 16, 16 are arranged symmetrically with respect to the center in the left-right direction. Moreover, the outer connection part 16 is provided inside the area | region enclosed by the bending part 14, and the outer connection part 16 is formed in the Example from the rear part of the flat plate part 13 to the obstruction | occlusion end of the bending part 14 (FIG. 3). reference). The outer connecting portion 16 hangs down from the flat plate portion 13 and extends in the left-right direction from a first plate piece (plate piece) 18 formed so as to extend in the front-rear direction and from the lower edge of the first plate piece 18. The second plate piece 20 and the third plate piece 22 connected to the flat plate portion 13 from the front edges of the first plate piece 18 and the second plate piece 20 are formed in a box shape opened inward in the left-right direction (FIG. 2 and FIG. 5). In addition, the first plate piece 18 and the second plate piece 20 are connected to the closed end of the bent portion 14 at the rear edges. A spring nut 24 is disposed in a substantially central portion of the third plate piece 22 facing the front side in such a manner that the fastening hole penetrates back and forth (see FIG. 5). Further, an outer engagement portion 25 used for positioning with the inner member 32 at the time of vibration welding is formed on the back surface of the outer member 12 so as to be separated in the left-right direction, which is the vibration direction. In the embodiment, an outer engagement portion 25 is constituted by the first plate piece 18 and an engagement hole 26 formed so as to penetrate the first plate piece 18 in the left-right direction, that is, the outer engagement portion 25. Is provided in the outer connecting portion 16. Here, the engagement hole 26 is opened in a substantially rectangular shape, and the opening edge on the front side extends linearly in the vertical direction.

  Further, a plurality of ribs 28 extending in the front-rear direction are provided on the back surface of the outer member 12 so as to be separated from each other in the left-right direction (see FIG. 4). Here, the outer member 12 has a positioning rib 28 set so that the position of the front edge in the front-rear direction contacts the rear edge of the inner member 32. The positioning ribs 28 are provided in groups of two adjacent to the inner sides of the outer connecting portions 16 in the left-right direction.

  The inner member 32 is a molded product of a thermoplastic resin having a body portion formed in a plate shape, and is formed in a symmetrical shape with the center in the left-right direction interposed therebetween as shown in FIG. The inner member 32 is set smaller than the flat plate portion 13 of the outer member 12, and the main body portion is overlapped and joined to the lower side of the flat plate portion 13 (see FIG. 1). The inner member 32 is provided with a plurality of mounting seats 34 that are spaced apart in the left-right direction and on which mounting tools can be mounted. The inner member 32 is provided with a plurality of inner connecting portions 36 corresponding to the outer connecting portions 16 of the outer member 12. That is, the inner connecting portion 36 is provided at each end in the left-right direction of the inner member 32 corresponding to the outer connecting portion 16 disposed at each end in the left-right direction of the outer member 12, and the corresponding outer connecting portion 16. And arranged in the front-rear direction. The inner connecting portion 36 is a plate-like piece that is bent so as to hang down after extending rearward from the main body portion of the inner member 32, and a through hole 40 through which a bolt 48 can be inserted in a substantially central portion of the hanging piece 38. Has been established. The spoiler 10 overlaps the main body portion of the inner member 32 with the flat plate portion 13 of the outer member 12, and abuts the hanging piece 38 of the inner connecting portion 36 against the third plate piece 22 of the outer connecting portion 16 to form the through hole 40. The outer member 12 and the inner member 32 are mechanically fastened by attaching a bolt 48 to the spring nut 24 from the front side (see FIG. 1).

  The inner member 32 is provided with a plurality of inner engagement portions 41 that can be engaged with the outer engagement portions 25 corresponding to the outer engagement portions 25 (see FIG. 4). In the embodiment, the inner engagement portion 41 is formed in the inner connection portion 36, and the inner engagement portion 41 corresponds to the outer engagement portion 25 disposed at each end in the left-right direction of the outer member 12. The inner member 32 is provided at each end in the left-right direction. In addition, the inner engagement portion 41 is disposed on the outer side in the left-right direction of the corresponding outer engagement portion 25, and the outer engagement portions 25, 25 are sandwiched between the pair of inner members 32, 32. (See Figure 1). The inner engaging portion 41 is formed so as to extend rearward from the hanging piece 38 of the inner connecting portion 36, and a protruding piece 42 that is elastically deformable in the left-right direction, and from the tip portion of the protruding piece 42 inward in the left-right direction. And an engaging claw 44 formed so as to extend (see FIG. 6). In the inner engagement portion 41, the protruding piece 42 overlaps the outer side of the first plate piece 18 in the outer engagement portion 25 in the left-right direction, and the engaging claw 44 extending in the left-right direction from the protruding piece 42 is formed in the engaging hole 26. The engaging claw 44 is hooked on the opening edge of the engaging hole 26 (see FIG. 2).

  The outer engagement portion 25 and the inner engagement portion 41 are configured such that the engagement claw 44 fits into the engagement hole 26, thereby restricting the movement of the inner member 32 relative to the outer member 12 in the front-rear direction. The member 32 is positioned in the front-rear direction. That is, the outer engagement portion 25 and the inner engagement portion 41 have a front-rear distance from the rear surface of the hanging piece 38 to the front surface of the engagement claw 44 from the front surface of the third plate piece 22 to the front opening edge of the engagement hole 26. It is set to be the same as or slightly larger than the front-rear interval. As a result, when the engagement claw 44 fits into the engagement hole 26, the rearward movement of the inner member 32 is restricted by the contact between the third plate piece 22 and the hanging piece 38, and the front surface of the engagement claw 44 Is caught on the front opening edge of the engagement hole 26, and the forward movement of the inner member 32 is restricted. Further, the outer engagement portion 25 and the inner engagement portion 41 have a gap larger than the amplitude at the time of vibration welding so as to allow relative movement between the outer member 12 and the inner member 32 in the left-right direction during vibration welding. The first plate piece 18 and the protruding piece 42 overlap in the left-right direction. The interval between the left and right protruding pieces 42, 42 is set to be larger than the interval between the left and right first plate pieces 18, 18, so that even if the inner member 32 vibrates in the left-right direction, the protruding piece 42 corresponds to the corresponding first piece. It does not interfere with one plate piece 18. Furthermore, the outer engagement portion 25 and the inner engagement portion 41 are configured to keep the engagement claw 44 fitted in the engagement hole 26 during vibration welding. That is, each engaging claw 44 is set so as to protrude from the protruding piece 42 inward in the left-right direction by an amount larger than the amplitude, and provided with an overlapping allowance larger than the amplitude when inserted into the engaging hole 26.

  When the inner member 32 engages the inner engagement portion 41 with the outer engagement portion 25, the rear movement of the main body portion is restricted by the front edge of the positioning rib 28 (see FIG. 2). Further, a protrusion 46 extending rearward is formed on the rear edge of the side end portion of the inner member 32 (see FIG. 6), and the two positionings that form a pair at the side end portion of the outer member 12 are formed. It is arranged between the ribs 28, 28. That is, the positional relationship between the two positioning ribs 28 and 28 that form a pair with the projection 46 is a guideline when the inner member 32 is assembled to the outer member 12, and the outer member 12 and the inner member 32 can be easily aligned. it can. Here, the protrusion 46 is set to have a width in the left-right direction so that there is a gap larger than the amplitude with respect to each of the two positioning ribs 28, 28, and the protrusion 46 interferes with the positioning rib 28 during vibration welding. It is supposed not to.

  The inner member 32 is provided with a plurality of positioning holes 35 in the main body portion into which positioning protrusions 64 provided on the second jig 62 for holding the inner member 32 side are fitted (see FIGS. 4 and 7). The inner member 32 of the embodiment has a pair of positioning holes 35, 35 provided symmetrically on the center side in the left-right direction, and the substantially rectangular positioning hole 35 is formed so as to penetrate the main body portion in the up-down direction. The The positioning holes 35 are inclined so that the opening edges in the left-right direction approach each other as they go from the lower side (second jig 62 side) to the upper side (outer member 12 side). Further, the positioning holes 35 are inclined so that the opening edges in the front-rear direction approach each other from the lower side (second jig 62 side) to the upper side (outer member 12 side). That is, the positioning hole 35 penetrating in the vertical direction has a shape that is narrowed so that the outer member 12 side becomes thinner.

  Next, the manufacturing method of the spoiler 10 which concerns on an Example is demonstrated. The outer member 12 having the outer connecting portion 16, the outer engaging portion 25, the positioning rib 28, and the like is formed by injection molding or the like. Apart from the outer member 12, the inner member 32 having the inner connecting portion 36, the inner engaging portion 41, the positioning hole 35 and the like is formed by injection molding or the like. The flat plate portion 13 is placed on a support surface formed in accordance with the flat plate portion 13, and the outer member 12 is turned upside down and set on the first jig 60 (see FIG. 7). The inner member 32 is turned upside down, and the main body portion is overlaid on the flat plate portion 13 of the outer member 12 so that the protrusion 46 is positioned between the positioning ribs 28 and 28 forming a pair (see FIG. 4). While the projecting piece 42 is elastically deformed by the contact between the engaging claw 44 of the inner engaging portion 41 and the first plate piece 18 of the outer engaging portion 25, the inner member 32 is closed by the closed end of the bent portion 14 of the outer member 12. By pushing to the side (rear), the engaging claw 44 is fitted into the engaging hole 26 and engaged (see FIG. 2). In this way, by engaging the inner engaging portion 41 and the outer engaging portion 25, the third plate piece 22 of the outer connecting portion 16 and the hanging piece 38 of the inner connecting portion 36 are contacted, and further the inner member The rearward movement of the inner member 32 with respect to the outer member 12 is restricted by the contact between the rear edge of the main body portion 32 and the front edge of the positioning rib 28. In addition, by engaging the inner engagement portion 41 and the outer engagement portion 25, the forward movement of the inner member 32 relative to the outer member 12 is restricted by the engagement between the engagement claw 44 and the engagement hole 26. The That is, the inner member 32 can be positioned in the front-rear direction with respect to the outer member 12 by the engagement between the inner engagement portion 41 and the outer engagement portion 25. Here, the inner member 32 is formed of the outer member 12 by the pair of outer engaging portions 25 and 25 sandwiched between the pair of inner engaging portions 41 and 41 and the positioning ribs 28 and 28 that sandwich the projection 46. Approximate positioning in the left-right direction is performed.

  Next, the main body portion of the inner member 32 exposed outward from the bent portion 14 is pressed from above by the second jig 62 (see FIG. 7). The second jig 62 has positioning convex portions 64, 64 formed corresponding to the pair of positioning holes 35, 35 formed in the inner member 32, and the end surface of the positioning convex portion 64 is in the positioning hole 35. It is formed to match the opening edge shape on the outer member 12 side. That is, when each of the positioning convex portions 64 is inserted into the corresponding positioning hole 35, the inner member 32 is positioned by the inclination of the opening edge of the positioning hole 35. Is pushed away. When the second jig 62 is further lowered and is in contact with the main body portion of the inner member 32, the positioning convex portion 64 is aligned with the opening edge of the positioning hole 35 on the outer member 12 side (FIG. 7). Reference), the position of the inner member 32 in the left-right direction and the front-rear direction can be more appropriately matched. In this way, by pressing the inner member 32 with the second jig 62, the engagement between the outer engagement portion 25 and the inner engagement portion 41 due to the contact between the positioning convex portion 64 and the opening edge of the positioning hole 35. The inner member 32 can be positioned with respect to the outer member 12 not only in the front-rear direction but also in the left-right direction. In a state where the outer member 12 and the inner member 32 are sandwiched and pressed between the first jig 60 and the second jig 62, the first jig 60 and the second jig 62 are moved in a predetermined direction in the left-right direction. By relatively vibrating with the amplitude, the overlapping portion of the outer member 12 and the inner member 32 is melted by frictional heat. At the time of vibration welding, the outer engagement portion 25 and the inner engagement portion 41 are not engaged with the movement in the vibration direction and are kept in the engagement state, so that the outer engagement portion 25 and the inner engagement portion 41 are engaged. Thus, the front and rear positions of the inner member 32 are held without deviation. And after performing the predetermined vibration, after cooling the melted part of the outer member 12 and the inner member 32, the outer connecting part 16 and the inner connecting part 36 are mechanically fastened, so that the outer member 12 and the inner member 32 Is obtained with high accuracy.

  As described above, according to the manufacturing method of the embodiment, the inner member 32 can be easily positioned with respect to the outer member 12 in the front-rear direction by the engagement between the outer engagement portion 25 and the inner engagement portion 41. In addition, when the inner member 32 is pressed by the second jig 62, the inner member 32 is held against the outer member 12 by the engagement between the positioning protrusion 64 of the second jig 62 and the positioning hole 35 of the inner member 32. Can be positioned more appropriately. Since the vibration welding can be performed with the outer member 12 and the inner member 32 positioned, the positional displacement between the outer member 12 and the inner member 32 can be prevented and the bonding can be performed with high accuracy. In addition, since the outer engagement portion 25 provided on the outer member 12 and the inner engagement portion 41 provided on the inner member 32 are engaged, it is possible to reduce the number of supports for positioning during vibration welding, and vibration welding. The equipment required for this can be simplified. If the inner member 32 is positioned so as to be pushed into the closed end side of the bent portion 14 of the outer member 12 by the support tool, the drooping piece 38 that comes into contact with the third plate piece 22 as it is pushed into the support tool is the third piece. While being pushed back by the plate piece 22, the main body portion of the inner member 32 in contact with the positioning rib 28 is pushed back by the positioning rib 28. However, since the movement of the inner member 32 due to the repulsion with the outer member 12 can be restricted by the engagement between the outer engaging portion 25 and the inner engaging portion 41, the mechanism for restricting the movement of the inner member 32 is reduced. Can do.

  According to the spoiler 10 according to the embodiment thus obtained, the outer member 12 and the inner member 32 are joined with high accuracy, so that the commercial value can be improved. Further, by providing the outer engagement portion 25 in the outer connection portion 16 used for mechanical fastening with the inner member 32, the influence on the design surface caused by the outer engagement portion 25 can be suppressed.

(Example of change)
The present invention is not limited to the configuration of the embodiment described above, and can be modified as follows.
(1) In the embodiment, the rear spoiler is exemplified as the spoiler. However, the present invention is not limited to this, and the present invention can be applied to other members attached to the outside of the vehicle body such as a front spoiler and a rear wing.

12 outer member, 16 outer connecting part, 18 first plate piece (plate piece),
25 outer engagement portion, 26 engagement hole, 32 inner member, 35 positioning hole,
36 inner connecting part, 41 inner engaging part, 42 protruding piece, 44 engaging claw,
60 1st jig, 62 2nd jig, 64 Positioning convex part

Claims (5)

In a spoiler having an outer member and an inner member joined to the back surface of the outer member by vibration welding,
A plurality of outer engagement portions formed on the back surface of the outer member apart from each other in the vibration direction during vibration welding, and a plurality of inner engagement portions formed on the inner member corresponding to each of the outer engagement portions. And
The corresponding outer engagement portion and inner engagement portion overlap in the vibration direction so as to allow relative movement between the outer member and the inner member in the vibration direction during vibration welding, and the vibration A spoiler configured to engage with each other in a state in which movement in a restricting direction along the back surface of the outer member intersecting with the direction is restricted. The outer engagement portion is provided in an outer connection portion formed to protrude from the back surface of the outer member,
The inner engagement portion is provided in an inner connection portion formed in the inner member corresponding to the outer connection portion,
The spoiler according to claim 1, wherein the outer connecting portion and the inner connecting portion are mechanically fastened. The outer engagement portion includes a plate piece that is formed to protrude from the back surface of the outer member and extends in the regulation direction, and an engagement hole that is formed through the plate piece in the vibration direction.
The inner engagement portion is formed to extend in the regulation direction, and is a protruding piece that can be elastically deformed in the vibration direction, and an engagement claw that is formed to extend from the tip of the protruding piece in the vibration direction. Have
The corresponding outer engagement portion and inner engagement portion are configured such that the engagement claw fits into the engagement hole, positions the outer member and the inner member in the regulation direction, and performs vibration welding in the vibration direction. The plate piece and the projecting piece overlap in the vibration direction with a gap larger than the vibration width so as to allow relative movement between the outer member and the inner member, and the engagement claw is fitted in the engagement hole. The spoiler according to claim 1 or 2, wherein the spoiler is configured to maintain the above. In the method of manufacturing a spoiler, which is bonded to the back surface of the outer member by vibration welding that causes the inner member to vibrate relatively in a predetermined vibration direction,
The movement of the inner member in the restricting direction along the back surface of the outer member intersecting the vibration direction is regulated by the engagement of the outer engaging portion provided on the back surface of the outer member and the inner engaging portion provided on the inner member. Then, the inner member is positioned with respect to the outer member,
The inner member is joined to the outer member by relatively vibrating the inner member while maintaining the engaged state of the outer engaging portion and the inner engaging portion allowing movement in the vibration direction. A method for producing a spoiler characterized by the above.   When the overlapped outer member and inner member are sandwiched between the first jig and the second jig, the positioning protrusions formed on the second jig that presses the inner member side are positioned on the positioning protrusions. The inner member is positioned in the vibration direction with respect to the outer member by fitting into a positioning hole formed in the inner member so as to become thinner from the side where the portion is inserted toward the outer member side. The manufacturing method of the spoiler of description.

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