JP7383499B2 - vehicle spoiler - Google Patents

Description

The present invention relates to a vehicle spoiler for an automobile.

For example, a spoiler extending in the width direction of the vehicle may be attached to the roof end or the upper part of the rear window of a wagon type, one-box type, or the like. This spoiler is formed into a hollow shape using a synthetic resin material. For this reason, they were sometimes made using blow molding, but recently, there are many cases where functions such as built-in antennas and wiper storage are added, so two-piece spoilers that are integrated with the upper and lower parts of injection molded products are being used. is increasing. In addition to vibration welding as disclosed in Japanese Patent No. 5246692, there are also bonding products using an adhesive to integrate the upper member and the lower member.
A spoiler using an adhesive is made by applying adhesive to flat surfaces such as the outer peripheral portions of the upper member and the lower member, and then bonding them together to integrate them. However, with this adhesive manufacturing method, it is necessary to secure a flat surface on which to apply the adhesive, and it is necessary to increase the adhesive area in order to increase the adhesive strength. Depending on the design shape, it may be difficult to ensure a flat surface.
For this reason, several improved inventions for cases using adhesives have been proposed (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 8-150963

Patent Document 1 states in claim 3 that ``at least one of the surface of the protruding portion for forming an adhesive intervening space formed on one member and the surface of the groove forming portion for forming an adhesive intervening space formed on the other member. Discloses an invention of a hollow molded product having a part or all of its surface formed into a wrinkled surface. Paragraph 0015 states that "...by having the above configuration, the bonding area between the protruding portion for forming an adhesive intervening space and the groove forming portion for forming an adhesive intervening space is increased, and as a result, the adhesive strength is improved." There is.

However, there is a limit to the improvement in adhesive strength by forming wrinkled surfaces as described in Patent Document 1, and there are cases in which bonding strength cannot be ensured only by spreading the formation of wrinkled surfaces.
Currently, mechanical fastening (screw fastening) is often used in combination to ensure the required strength. For example, as shown in FIGS. 10 and 11, the adhesive 4 is applied to the outer peripheral portion 811 of the inner surface 8b of the upper member. Next, the outer circumferential portion 811 of the upper member 8 and the outer circumferential portion 911 of the lower member 9 are bonded together so that the plate piece portion 92 provided on the lower member main portion 91 faces the receiving piece portion 82 provided on the upper member main body 81. Paste and integrate with agent 4. Then, the receiving piece part 82 and the plate piece part 92 are fastened together using screws V, but the addition of mechanical fastening raises the problem of increased cost and increased risk of causing distortion in the design.

The present invention solves the above problem, and even if it is difficult to secure a flat surface for adhesive due to the design shape of the spoiler, it makes it possible to secure a new flat surface for adhesive, and not only increases the adhesive surface. The purpose of the present invention is to provide a spoiler for a vehicle that dramatically increases the bonding strength using adhesive alone by taking advantage of the characteristics of adhesive. The object of the present invention is to provide a spoiler for a vehicle that can be used without mechanical fastening in some cases, eliminates distortion caused by mechanical fastening, and leads to cost reduction.

In order to achieve the above object, the gist of the invention as set forth in claim 1 is a synthetic resin vehicle spoiler in which an upper member and a lower member are integrated by bonding their outer peripheral parts with an adhesive. , a vertical plate piece formed upright on the inner surface of the main body of the upper member; and a slit provided along the longitudinal hole edge of the slit, and with the integration, the plate surface faces and approaches the plate surface of the vertical plate piece, and the main part of the lower member a plate-shaped body formed upright on the outer surface; and a solidified portion of the adhesive that fills a gap between the opposing plate surfaces of the plate-shaped body and the upright plate piece, bonding and integrating the two; A spoiler for a vehicle is characterized by comprising the following. A second aspect of the present invention provides a vehicle spoiler according to the first aspect, wherein the upright plate piece is an injection molded part extending from the injection molded main body of the upper member, and the plate piece shaped body is an injection molded part formed to extend from the injection molded main body of the upper member. It is characterized in that it is an injection molded part extending from an injection molded main part. A vehicle spoiler according to a third aspect of the present invention is characterized in that, in the first or second aspect, the plate-like bodies are formed on the lower member along the edges of both holes in the longitudinal direction of the slit. . In the vehicle spoiler according to claim 4, in the first to third aspects, an opening penetrating through the thickness of the plate is provided in the main portion around the base end on the opposite side from the hole edge side of the plate piece-like body. , and is characterized in that its outer opening is larger than its inner opening. In the vehicle spoiler according to claim 5, in the first to fourth aspects, the solidified portion of the adhesive filling the gap between the opposing plate surfaces of the plate piece-like body and the upright plate piece is It is characterized in that it is continuously provided beyond the tip of the plate surface to the top surface of the plate piece-like body and the top surface of the vertical plate piece. The vehicle spoiler according to claim 6 is characterized in that in claims 1 to 5, the vertical plate piece has a width that decreases as it approaches the top surface of the vertical plate piece. shall be. The vehicle spoiler according to the seventh aspect of the present invention is characterized in that the thickness of the top of the upright plate piece is gradually reduced toward the top surface.

The vehicle spoiler of the present invention is a standing plate piece and a plate that can be made to stand up on the main body of the upper member and the main part of the lower member and can be integrated with the adhesive even if the bonding surface cannot secure a sufficient flat surface on the main body of the upper member and the main part of the lower member. Since the strips are provided, the bonding area increases and the bonding strength can be increased. In addition to increasing the adhesive area, for example, when the disadvantage of adhesives that are weak in peeling force such as the upper member main body peeling off from the lower member main part appears, it is possible to Advantages of adhesives that are strong against force work. The property of the adhesive, which has an extremely strong shearing force, effectively works on the bonding surface between the upright plate piece and the plate piece-like body to prevent the shearing force, which is very effective in maintaining the integration of the upper member and the lower member.

FIG. 2 is a perspective view of the inner surface of a lower member in one form of the spoiler of the present invention, and the parts within the circle are enlarged views. In the front side perspective view of the upper member, the inside of the circle is a partially enlarged view. FIG. 3 is a perspective view of the lower member shown in FIG. 1 after the upper member shown in FIG. 2 is superimposed on the lower member seen from the outer surface side. 4 is a partially enlarged view of FIG. 3. FIG. Fig. 3 is an explanatory cross-sectional view of a spoiler in which the upper member main body and the lower member main part are integrated with adhesive, and a solidified part of the adhesive is formed in the gap between the plate piece-like body and the upright plate piece. be. 6 is a partially enlarged view of FIG. 5. FIG. (A) and (B) are cross-sectional views of the first half process of manufacturing the spoiler around the plate piece-like body and the upright plate piece of FIG. 5. (C) and (D) are sectional views of the latter half of the spoiler manufacturing process following FIG. 7. 7 is a diagram showing another aspect in place of FIG. 6. FIG. It is a perspective view of the lower member and upper member of a prior art. 1 is a cross-sectional view of a prior art spoiler; FIG.

Hereinafter, the vehicle spoiler (hereinafter also simply referred to as "spoiler") according to the present invention will be described in detail. 1 to 11 show one form of the spoiler of the present invention. FIG. 1 is a perspective view of a lower member, FIG. 2 is a perspective view of an upper member, FIG. 3 is a perspective view of the lower member and upper member overlapped, and FIG. is a partial enlarged view of FIG. 3, FIG. 5 is an explanatory cross-sectional view of a spoiler in which a solidified portion of adhesive is formed in the gap between a plate piece-like body and an upright plate piece, FIG. 6 is a partial enlarged view of FIG. 5, and FIG. , FIG. 8 is a cross-sectional view of each step of manufacturing the spoiler around the plate piece-like body and the vertical plate piece of FIG. 5, and FIG. 9 is a diagram showing another embodiment in place of FIG. 6. Each figure is simplified and the main parts of the invention are emphasized for ease of understanding.

(1) Spoiler for a vehicle The spoiler for a vehicle includes a synthetic resin upper member 2 having a standing plate piece 22, and a synthetic resin lower member 3 having a slit 30 and a plate piece-like body 32, and the outer periphery of both. The portions 211 and 311 are bonded together with adhesive 4 to be integrated. In an automobile 7 as shown in FIG. 5, a wing-shaped main spoiler 1 extending in the vehicle width direction perpendicular to the plane of the paper is attached to the back door near a wagon-type roof end 71. Reference numerals 215 and 315 indicate outer peripheral edges of the upper member 2 and lower member 3 on the vehicle front side.

The upper member 2 is a flat injection molded product that forms the upper half of the spoiler 1 that is long in the vehicle width direction (FIG. 2). Both sides of the main body 21, which extends in the vehicle width direction, are bent downward to form guard portions. The upper member 2 includes a main body 21 that forms a substantially flat surface 21a whose upper surface becomes a design surface in the vehicle-mounted state shown in FIG. .

The upright plate piece 22 is attached to the upper member so that it passes through the slit 30 of the lower member 3 when the upper member 2 and the lower member 3 are overlapped, and protrudes toward the lower surface side of the lower member 3, that is, the outer surface 31a side in the vehicle-mounted state. It is a rib-shaped protrusion that stands upright on the main body 21 (FIG. 6).
The upright plate piece 22 of this embodiment is an injection molded part extending from the injection molded main body 21 of the upper member 2. A pair of upright plate pieces 22 are provided on the inner surface 21b of the main body near both sides of the upper member 2 in the vehicle width direction at a location near the front of the vehicle where an installation space can be secured. Here, the receiving piece 82, plate piece 92, and screw V for mechanical fastening shown in FIG. 11 of the prior art are omitted, and the standing plate piece 22 is provided in a vacant space. A rectangular standing plate piece 22 as shown in FIG. 2 stands approximately perpendicular to the inner surface 21b of the main body around its base end. In the upper member main body 21 excluding the guard portion, the upright plate pieces 22 are set to stand up substantially perpendicularly to the belt-shaped main surface of the outer peripheral portion 211 to which the adhesive 4 is applied. Although the width direction of the plate piece width W of the upright plate piece 22 is set to match the vehicle width direction, the width direction is not limited thereto, and may be the vehicle front-rear direction. The vertical plate piece 22 has a plate width W that decreases as it approaches the top surface 22f at the top portion 221 to facilitate insertion of the vertical plate piece 22 into the slit 30.
It is preferable to provide a large number of vertical plate pieces 22 if space can be secured. The upright plate piece 22 preferably has a large plate surface 22d in order to have the adhesive 4 applied to the plate surface 22d to strengthen the adhesive integration with the plate piece-like body 32 of the lower member 3 described below. .

The lower member 3 is the lower half of the two-piece spoiler 1 that is integrated with the upper member 2, and is an injection molded product that is long in the vehicle width direction as shown in FIG. The lower member 3 has the outer peripheral edges 215, 216 of the upper member 2 slightly larger than the outer peripheral edges 315, 316 thereof, and has a cross-sectional shape as shown in FIG. 5 that covers the outer peripheral edges 215, 216 thereof. A recessed storage wall portion 312 is formed in a main portion 31 that is the main portion of the lower member 3. When the lower member 3 and the upper member 2 are bonded together with the adhesive 4 and integrated, the upper member 2 covers the open side of the storage wall portion 312 to form a hollow portion S in which the antenna and the like are stored.
This lower member 3 is provided with a slit 30 and a plate-shaped body 32 in a main portion 31 forming a spoiler lower body.

The slit 30 corresponds to the vertical plate piece 22 so that the vertical plate piece 22 protrudes toward the outer surface side of the lower member 3, specifically, toward the outer surface 31a side of the main portion 31 when the upper member 2 and lower member 3 are bonded and integrated. This is an elongated hole formed in the main portion 31 of the lower member. The slit 30 is sized to match the maximum cross-sectional shape of the upright plate piece 22, and is sized so that the root of the upright plate piece 22 fits therein. The vertical plate piece 22 is inserted into the slit 30, and the upper member 2 and the lower member 3 are overlapped and integrated with the adhesive 4, so that the vertical plate piece 22 is inserted into the slit 30. The slit 30 is a vertically long rectangular hole. The slits 30 are provided near both sides in the vehicle width direction of the lower member main portion 31 facing the upright plate piece 22 standing on the inner surface 21b of the main body. A plate-shaped body 32 is provided in the lower member 3 along the slit 30.

The plate-like body 32 is a protruding piece that is provided along the longitudinal hole edge 301 of the slit 30 and is formed in a rib-like manner on the outer surface 31a of the main portion of the lower member 3 (FIG. 1). When the plate-like body 32 is provided along the hole edge 301 in the longitudinal direction of the slit 30, it means that the base end 321 of the plate-like body 32 is aligned with the hole edge 301 of the slit 30 as shown in FIG. Of course, it also includes being provided at a position slightly away from the hole edge 301 in the longitudinal direction as shown in FIGS. 1 and 4. The plate piece-like body 32 is an injection molded part extending from the injection molded main part 31 of the lower member 3. As the upper member 2 and lower member 3 are bonded and integrated, the plate surface 22d of the upright plate piece 22 protruding toward the outer surface 31a of the lower member 3 and the plate surface 32d of the plate piece-like body 32 face each other and come close to each other. In this state, the plate piece-like body 32 is erected on the outer surface 31a of the main portion. The plate surface 32d of the plate piece-like body 32 has substantially the same shape as the plate surface 22d of the vertical plate piece 22 so that the adhesive area with the vertical plate piece 22 is as large as possible.
Although it is sufficient to simply provide one plate piece 32 upright along one hole edge 301 in the longitudinal direction of the slit 30, in this embodiment, along both longitudinal hole edges 301, 301 of the slit 30, A plate piece-like body 32 is formed in the lower member main portion 31, respectively. Both plate pieces 32 also serve as positioning ribs for smoothly inserting the upright plate piece 22 into the slit 30 and keeping the upright plate piece 22 stable in standing. Each of the plate pieces 32 forms a gap ε with the standing plate piece 22, and the solidified portion 4B of the adhesive 4 is filled in both gaps ε.

The solidified portion 4B of the adhesive 4 is a hardened portion of the adhesive 4 that fills the gap ε between the opposing plate surfaces 22d, 32d of the plate piece 32 and the upright plate piece 22, and bonds and integrates both. be. A plate-shaped body 32 stands in the lower member main portion 31 and is adjacent to the plate surface 22d of the upright plate piece 22 inserted into the slit 30, with its plate surface 32d facing the plate surface 22d. Therefore, when the upper member 2 and the lower member 3 are combined as shown in FIG. 3, a gap ε as shown in FIG. 4 is created between the upright plate piece 22 and the plate piece-like body 32. In this two-piece spoiler 1 that is integrated with the upper member 2 and lower member 3, the solidified portion 4B of the adhesive 4 that integrates the upright plate piece 22 and the plate piece-like body 32 is clogged in the gap ε. (Figure 6).

Here, the thickness of the adhesive 4 that fills the gap ε is thin, but from the viewpoint of adhesive strength, it is preferable that the layer of the adhesive solidified portion 4B is thin as long as it is continuous, so that good adhesive solidification is achieved. A portion 4B is formed. Moreover, the solidified portions 4B of this embodiment are formed on both plate surfaces 22d, 22d of the upright plate piece 22, as shown in FIG. Solidification that fills the two gaps ε between the opposing plate surfaces 22d, 22d of the vertical plate piece 22 and the opposing plate surface 32d of the plate piece-like body 32 formed along both longitudinal hole edges 301 of the slit 30. It is a spoiler 1 where part 4B2 is located.
Further, the solidified portion 4B2 of the adhesive 4 filled in the gap ε between the opposing plate surfaces 22d and 32d of the plate piece 32 and the upright plate piece 22 exceeds the tip 322 of the opposing plate surfaces 22d and 32d. It is continuously formed on the top surface 32f of the plate piece-like body 32 and on the top surface 22f of the vertical plate piece 22. The plate piece-like body 32 and the solidified portions 4B3 on the top surfaces 22f and 32f of the upright plate piece 22 help prevent the upper member 2 and the lower member 3 from peeling off.

As for the solidified portion 4B of the adhesive 4, it is not limited to the gap ε, but also the outer peripheral portions 211, 311 of the upper member 2 and the lower member 3 are bonded together with the adhesive 4, as in the conventional spoiler 1, as shown in FIG. A solidified portion 4B of the adhesive 4 that integrates the two is also formed. The adhesive 4 is sandwiched between a band-shaped outer circumferential portion 311 whose outer edges are the outer circumferential edges 315, 316 of the lower member inner surface 31b and a corresponding outer circumferential portion 211 of the upper member inner surface 21b, and is cured and solidified. It is section 4B1. The solidified portion 4B1 is desirably formed in a circumferential manner on the outer peripheral portion 211, 311 as shown in FIGS. 1 and 2, but may be formed intermittently due to restrictions on the design surface shape or the like.

Incidentally, the adhesive 4 used here is a one-component moisture curing type urethane adhesive 4. As for the characteristics of the spoiler adhesive 4, it does not have to be a one-component type, but it preferably has a high molecular weight and high viscosity. Specifically, one in the range of 30,000 to 1,000,000 mPa·s is more preferable. When a low-viscosity adhesive 4 is applied to the plate surface 22d of the standing board piece 22, it immediately flows down and spreads, but since the adhesive 4 is highly viscous, the adhesive 4 that fills the gap ε is applied to the plate surface. It tends to stay at and around 22d. In addition, the adhesive 4 can be applied to the upright plate piece 22 and the initial pressure bonding hardening of the adhesive 4 can be completed in about 30 seconds, making it easier to handle the spoiler 1 after it is taken out from the pressing jig T, which will be described later. It becomes easier to do. The solidified portion 4B of the adhesive 4 can be quickly formed in the gap ε, resulting in a desired spoiler 1 that also contributes to improved productivity.

Furthermore, the spoiler 1 of this embodiment has a plate thickness in the main portion 31 around the base end 321 of the plate piece-like body 32 on the opposite side from the hole edge 301 side, as shown in FIGS. 4 and 7. A penetrating opening 33 is provided. Further, the outer opening 33a is formed larger than the inner opening 33b. A solidified portion 4B4 of the adhesive 4 is filled and formed in the opening 33 including the outer opening 33a as shown in FIG. 6 to form an anchor. The solidified portion 4B4 serves as a stopper for preventing the upper member 2 and lower member 3 from peeling off. As shown in FIG. 8(d), the solidified portion 4B4 of the opening 33 is connected to the solidified portion 4B sandwiched between the lower member main portion 31 around the inner side opening 33b and the upper member main body 21 opposing this. Therefore, it works more effectively as a stopper.
Further, FIG. 9 shows another embodiment of the spoiler 1 in which the plate-shaped body 32 stands up only at the edge 301 of one hole of the slit 30. The thickness t of the top portion 221 of the vertical plate piece 22 is gradually reduced toward the top surface 22f to form the slope 2211. By providing a solidified portion 4B3 of the adhesive 4 around the top surface 22f including the slope 2211, it helps to prevent further separation of the upper member 2 and lower member 3.
Reference numeral 22e indicates the thickness surface of the vertical plate piece 22, reference numeral 32e indicates the plate thickness surface of the plate piece-like body 32, reference numeral 302 indicates the hole edge in the short direction of the slit 30, and reference numeral 39 indicates the mounting plate portion for the mating member. CR indicates a bending line. In addition, in the present invention, the upper member 2 and lower member 3 can be replaced with an outer member and an inner member. This is because similar actions and effects can be obtained.
Such a spoiler 1 can be manufactured, for example, by the following method for manufacturing a spoiler for a vehicle.

(2) Method for manufacturing a spoiler for a vehicle The method for manufacturing a spoiler for a vehicle involves bonding the outer circumferential portions 211, 311 of the inner surfaces 21b, 31b of both the upper member 2 and the lower member 3 with adhesive 4, and standing them up. This is a manufacturing method in which the adhesive 4 filled in the gap ε between the plate piece 22 and the plate piece-like body 32 is cured to integrate the two.
The upper member 2 has a vertical plate piece 22 formed on the inner surface 21b of the main body, and the lower member 3 corresponding to the vertical plate piece 22 is formed so that the vertical plate piece 22 protrudes toward the outer surface side of the lower member 3 upon integration. A slit 30 is provided in the main portion 31. Further, the lower member 3 is a plate in which the plate surfaces 22d and 32d of the upright plate piece 22 due to the integration are opposed and close to the main part outer surface 31a along the longitudinal hole edge 301 related to the slit 30. The flaky body 32 is formed to stand up.
The spoiler 1 shown in FIG. 5 is manufactured by preparing the lower member 3 shown in FIG. 1, the upper member 2 shown in FIG. 2, an adhesive 4, and a pressure bonding jig T, for example, as follows.

First, the upper member 2 is set in the lower jig 5 of the upper member jig so that the upper member inner surface 21b and the lower member inner surface 31b face each other, and the lower member 3 is set in the upper jig 6 of the lower member jig. do. The upper member 2 is supported by the main body receiving surface 51, and the lower member 3 is supported by the main part receiving surface 61. The main portion receiving surface 61 is formed with a recess 62 in which the two plate-shaped bodies 32 are accommodated, and a surrounding portion 63 for the opening 33.
Next, the adhesive 4 is applied to both outer circumferential portions 211, 311 or one outer circumferential portion 211 (or 311), and the adhesive 4 is applied to the plate surface 22d of the upright plate piece 22. Here, the adhesive 4 is applied only to the outer peripheral portion 211 of the upper member 2, and the adhesive 4 is applied so as to cover the entire surface of the upright plate piece 22, including the inner surface 21b of the main body around the upright plate piece 22. do. Then, the state shown in FIG. 7(A) is obtained in which the upright plate piece 22 faces the slit 30.

Next, move on to the crimping process. The upper jig 6 with the lower member 3 set thereon is lowered as shown by the white arrow in FIG. The sticky paste 4A of the adhesive 4 covering the upright plate piece 22 in the figure enters into the recess 62 together with the upright plate piece 22, and also enters into the opening 33 from the inner side opening 33b.

Furthermore, the upper jig 6 is lowered as shown by the white arrow in FIG. 8(c), and the upper member 2 and the lower member 3 are pressed together with the adhesive 4 using the crimping jig, as shown in the figure. The vertical plate piece 22 inserted through the slit 30 projects toward the outer surface 31a of the main portion 31, and the plate surface 32d of each plate piece-like body 32 is connected to both plate surfaces 22d, 22d of the vertical plate piece 22 through a gap ε. opposite. Then, the adhesive 4 covering the vertical plate piece 22 fills the gap ε. As shown in FIGS. 7(B) to 8, the adhesive 4 extends beyond the tips 322 of the opposing plate surfaces 22d and 32d onto the top surface 32f of the plate piece 32 and the top surface 22f of the vertical plate piece 22. The surplus space 621 above is also filled. Here, when the lower member 3 is set on the upper jig 6, an extra space 621 is provided between the plate piece top surface 32f and the upright plate piece top surface 22f and the bottom surface of the recess 62. When the insertion into the slit 30 is completed and the vertical plate piece 22 is completely projected toward the outer surface 31a of the main portion in the state shown in FIG. 8(c), the surplus space 621 is filled with the adhesive 4.
Further, in parallel with the completion of the ejection of the vertical plate piece 22, the outer circumferential portion 211 and the outer circumferential portion 311 of the main portion inner surface 31b are bonded together with the adhesive 4 applied to the outer circumferential portion 211 of the main body inner surface 21b.

Thereafter, the state shown in FIG. 8(c) is maintained for a predetermined period of time to cure the adhesive 4. The gap ε between the opposing plate surfaces 22d and 32d is reduced by applying the adhesive 4 sandwiched between the outer peripheral portions 211 and 311 of the upper member 2 and lower member 3 to the plate surface 22d of the upright plate piece 22. The filled adhesive 4 is cured to form a solidified portion 4B. Solidified portions 4B3 on the top surfaces 22f and 32f and solidified portions 4B4 of the opening 33 are also formed.
Thereafter, the upper jig 6 is raised as indicated by the white arrow in FIG. 8(d). An integral piece of the upper member 2 and lower member 3 formed by the solidified portion 4B appears on the lower jig 5, and is taken out to obtain the desired spoiler 1.

The plate pieces 32 may be provided only on one plate surface 22d side of the vertical plate piece 22, but in this embodiment, they are provided on the lower member 3 along both longitudinal hole edges 301 of the slit 30. . A plate surface 32d of each plate piece 32 faces both plate surfaces 22d, 22d of the upright plate piece 22 with a gap ε interposed therebetween. After applying the adhesive 4 to both plate surfaces 22d, 22d of the vertical plate piece 22, the vertical plate piece 22 inserted through the slit 30 is pushed out to the outer surface side of the main part 31, and both plate surfaces 22d, 22d of the vertical plate piece 22 are inserted. The adhesive 4 filled in each gap ε between the opposing plate surface 32d of the two plate pieces 32 is cured to form a solidified portion 4B. By providing the solidified portions 4B on both plate surfaces 22d, 22d of the vertical plate piece 22, a desired spoiler 1 with double the bonding surface compared to only one plate surface 22d can be obtained.
Reference numeral 35 indicates a weir for preventing the flow of the adhesive 4 provided as necessary, and reference numeral 69 indicates a release coating. The other configurations are the same as those described in (1) for the vehicle spoiler, and the explanation thereof will be omitted. The same reference numerals as in (1) indicate the same or equivalent parts.

(3) Effect The vehicle spoiler configured as described above effectively increases the bonding strength between the upper member 2 and the lower member 3, improves the quality and reliability of the spoiler product, and exhibits excellent effects. .
As in claim 1, the upright plate piece 22 is formed by integrating the upright plate piece 22 that stands up on the inner surface 21b of the main body, the slit 30 provided in the main portion 31 corresponding to the upright plate piece 22, and the upper member 2 and the lower member 3. The plate surface 32d is close to the plate surface 22d, and the plate piece-like body 32 standing on the outer surface 31a of the main part and the gap ε between the opposing plate surfaces 22d and 32d are filled with the adhesive 4 and solidified. By providing the portion 4B, even in a case where it is difficult to secure a flat surface for the adhesive 4 due to the design shape of the spoiler 1, a new flat surface for the adhesive can be easily secured. A degree of freedom is given to the design surface shape of the spoiler 1. Even if the inner surface 21b of the main body is somewhat uneven, the upright plate piece 22 can be made to stand up there, and the upright plate piece 22 and both planar plate surfaces 22d and 32d of the plate piece-like body 32 can be bonded and integrated. . Even if the outer peripheral portions 211, 311 of the bonding surfaces are not flat, the upright plate pieces 22 and plate-like pieces 32 can be set, so the degree of freedom in the shape of the spoiler 1 is increased. The design shape of the spoiler 1 is not limited as long as the space for providing the upright plate piece 22 and the plate piece-like body 32 can be secured. By simply forming the upright plate piece 22 and the plate piece-like body 32, the bonding surface can be easily added and the bonding strength can be increased.

Moreover, when the solidified portion 4B of the adhesive 4 is formed in the gap ε between the upright plate piece 22 formed upright on the inner surface 21b of the main body of the upper member 2 and the plate piece-like body 32 of the lower member 3, both are bonded and integrated. Since the angle of the bonding surface is greatly different from that of the bonding surface at the outer peripheral portions 211, 311, the properties of the adhesive 4 are utilized to significantly increase the bonding strength.
The adhesion surface of the adhesive solidified portion 4B that bonds and integrates the upright plate piece 22 standing on the upper member main body 21 and the plate piece-like body 32 standing up on the lower member main portion 31 is the outer circumferential portion 211 of the upper member inner surface 21b. As shown in FIG. 6, the shape is approximately perpendicular to the main bonding surface of the adhesive solidifying portion 4B that integrates the outer circumferential portion 311 of the inner surface 31b of the lower member.
The strength of the adhesive 4 is shear strength and peel strength, but normally, as one strength increases, the other strength decreases (Masaki Shinbo: Adhesive Strength and Fracture, "Adhesive Handbook Vol. 2") Edition, 54 pages, Nikkan Kogyo Shimbun (1991)). For example, when the adhesive 4 with high shear strength is used, the peel strength of the adhesive solidified portion 4B1 that integrates the outer peripheral portions 211 and 311 is reduced, and the upper member 2 is separated from the lower member 3 as shown in the figure. It becomes easy to peel upwards from 6. However, due to the presence of the adhesive surface of the gap-filling solidified portion 4B2 that intersects at an angle close to perpendicular to the adhesive surface of the adhesive solidified portion 4B1 that integrates the outer peripheral portions 211, 311, the shear strength can be increased first. The shearing force of the adhesive 4, which was set to be large, works effectively and exhibits its power. The shear force of the gap-filling solidified portion 4B2 acts strongly to prevent the upper member 2 from peeling upward in FIG. 6 from the lower member 3. This significantly increases the external force required to peel off the upper member 2 upward in FIG. 6 from the lower member 3. When using an adhesive 4 with opposite shear strength and peel strength, in addition to the peel strength of the adhesive surface related to the solidified portion 4B1 on the outer periphery, the adhesive strength of the gap-filling solidified portion 4B2 that intersects the adhesive surface is increased. This can be effectively supplemented by the shear strength of the surface, making it an extremely logical spoiler 1.

Furthermore, since the upright plate piece 22 of the upper member 2 is configured to protrude through the slit 30 provided in the lower member 3, the shearing force on the adhesive surface of the adhesive solidified portion 4B1 is weak, causing the upper member 2 to shift laterally from the lower member 3. When the vertical plate piece 22 attempts to come off, the lower member main portion 31 and the plate-like body 32 around the hole edges 301 and 302 of the slit 30 stop the vertical plate piece 22 from moving. Lateral displacement of the upper member 2 can be prevented. The structure is such that the upper member 2 is difficult to separate from the lower member 3 in the shearing direction.
Furthermore, since the vertical plate piece 22 is inserted into the slit 30 and protruded toward the outer surface 31a side of the main portion 31, and the upper member 2 and the lower member 3 are bonded and integrated, the vertical plate piece 22 When inserted through the slit 30, the upper member 2 is positioned autonomously with respect to the lower member 3, making it extremely easy to assemble the two pieces into one piece. There is no need to worry about misalignment.

As mentioned above, since the upright plate piece 22 standing up on the upper member main body 21, the plate piece-like body 32 standing up on the lower member main part 31, and the gap filling solidified part 4B2 between both the plate surfaces 22d and 32d are provided, The present invention does not merely increase the bonding surface of the adhesive 4, but also the integration of the gap-filling solidified portion 4B2 makes use of the characteristics of the adhesive 4 and greatly contributes to maintaining the integration of the lower member 3 and the upper member 2. do.
The upright plate piece 22 and the plate piece-like body 32 can increase the bonding strength, and there is a possibility that it can be used as an alternative to mechanical fastening. Eliminates distortion caused by mechanical fastening, leading to lower costs.

As in claim 2, the upright plate piece 22 is an injection molded part extending from the injection molded main body 21 of the upper member 2, and the plate piece-like body 32 extends from the injection molded main part 31 of the lower member 3. The formed injection molded part can reduce costs.
As in claim 3, when the plate pieces 32 are formed on the lower member 3 along both longitudinal hole edges 301 of the slit 30, plates are formed on both plate surfaces 22d, 22d of the vertical plate piece 22. A gap-filling solidified portion 4B2 of the adhesive 4 that is integrated with the strip 32 can be provided. By simply securing a small space by adding one plate piece 32, the adhesive surface of the gap filling solidified portion 4B2 can be doubled, and the adhesive force can be effectively increased.
In addition, when the pair of plate pieces 32 stand up along both hole edges 301 of the slit 30, they position and hold the standing plate pieces 22 that are inserted into the slit 30 and protrude to the main part outer surface 31a, so that the upper member 2 and the lower member No shifting or wobbling when bonding (3), improving workability and stabilizing quality.

According to a fourth aspect of the present invention, an opening 33 penetrating through the plate thickness is provided in the main portion 31 around the base end 321 on the opposite side to the hole edge 301 side of the plate piece-like body 32, and If the outer surface side opening 33a is made larger, for example, by filling the solidified portion 4B4 into the opening 33 that continues from the gap filling solidified portion 4B2 to the outer surface side opening 33a, the solidified portion 4B4 is formed between the upper member 2 and the lower member 3. Can be used as a stopper to prevent peeling.
As described in claim 5, the solidified portion 4B2 of the adhesive 4 filling the gap ε between the opposing plate surfaces 22d and 32d of the plate piece 32 and the upright plate piece 22 is formed between the opposing plate surfaces 22d and 32d. When the solidified portions 4B3 on the top surfaces 22f and 32f are continuously provided on the top surface 32f of the plate piece-like body 32 and the top surface 22f of the vertical plate piece 22 beyond the tip 322, the solidified portions 4B3 on the top surfaces 22f and 32f become the upper member 2. This serves as a resistance portion that prevents the lower member 3 from peeling off. This is effective in maintaining the integration of the upper member 2 and lower member 3.

If the width W of the vertical plate 22 is made smaller as it approaches the top surface 22f at the top 221 of the vertical plate, the vertical plate 22 can be easily inserted into the slit 30.
As in claim 7, when the thickness t of the top portion 221 of the upright plate piece 22 is gradually reduced toward the top surface 22f, the solidified portion 4B is provided on the inclined surface 2211 that becomes smaller toward the top surface 22f. By doing so, the solidified portion 4B can be used as a stopper for preventing the upper member 2 and the lower member 3 from peeling off.
As described above, the present vehicle spoiler exhibits the various excellent effects described above and is extremely useful.

Note that the present invention is not limited to what is shown in the embodiments described above, and can be variously modified within the scope of the present invention depending on the purpose and use. The shape, size, number, material, etc. of the upper member 2, vertical plate piece 22, lower member 3, slit 30, plate piece 32, adhesive 4, crimping jig T, etc. can be appropriately selected according to the purpose. For example, the plate piece 33 of the embodiment only needs to have a flat plate surface 33d that faces the plate surface 22d of the upright plate piece 22, and the plate piece 33 may have a convex shape in the shape of a semi-cylindrical hook on the opposite side. .

1 Spoiler 2 Upper member 22 Main body (upper member main body)
21b Inner surface of main body (inner surface of upper member)
211 Outer peripheral portion of main body 22 Standing plate piece 22d Plate surface 3 Lower member 30 Slit 31 Main part (lower member main part)
31b Main part inner surface (lower member inner surface)
311 Outer peripheral part of main part 32 Plate shaped body 32d Plate surface 33 Opening 4 Adhesive 4B Solidified part 4B1 Solidified part of outer peripheral part (solidified part)
4B2 Gap filling solidification part (solidification part)
ε Gap

Claims (7)

A synthetic resin vehicle spoiler in which an upper member and a lower member are integrated by bonding their outer peripheral portions with adhesive,
a standing plate piece formed upright on the inner surface of the main body of the upper member;
A slit provided in the main portion of the lower member corresponding to the vertical plate piece so that the vertical plate piece protrudes toward the outer surface of the lower member upon the integration;
A plate provided along the longitudinal hole edge of the slit, whose plate surface faces and approaches the plate surface of the upright plate piece due to the integration, and is formed upright on the outer surface of the main portion of the lower member. schistoid,
A solidified portion of the adhesive is filled in a gap between the opposing plate surfaces of the plate piece-like body and the vertical plate piece, and is adhesively integrated with both the upper member and the lower member. A vehicle spoiler characterized by: The upright plate piece is an injection molded part extending from the injection molded main body of the upper member, and the plate piece shaped body is an injection molded part extending from the injection molded main part of the lower member. The vehicle spoiler according to claim 1. 3. The vehicle spoiler according to claim 1, wherein the plate-shaped bodies are formed on the lower member along both longitudinal hole edges of the slit. An opening penetrating through the thickness of the plate is provided in the main portion around the base end on the opposite side from the hole edge side of the plate piece-like body, and the opening on the outside side is larger than the opening on the inside side. The vehicle spoiler according to any one of claims 1 to 3. The solidified portion of the adhesive filling the gap between the opposing plate surfaces of the plate piece-like body and the upright plate piece extends beyond the tips of the both opposing plate surfaces and onto the top surface of the plate piece-like body. The vehicle spoiler according to claim 3 or 4, wherein the spoiler is provided continuously up to the top surface of the upright plate piece. The vehicle spoiler according to any one of claims 1 to 5, wherein the vertical plate piece has a plate width that decreases as it approaches the top surface at a top portion thereof. The vehicle spoiler according to any one of claims 1 to 6, wherein the plate thickness at the top of the vertical plate piece is gradually reduced toward the top surface.

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