JP4897463B2 - Spoiler and manufacturing method thereof - Google Patents

Description

  The present invention relates to a spoiler mounted on, for example, an automobile and a method for manufacturing the same.

  The spoiler attached to the rear of the car improves driving performance by rectifying the driving wind during high-speed driving to reduce driving resistance and increasing the ground contact force of the tire by pushing down the vehicle body . As such a spoiler, there are two-legged or three-legged ones, but two-legged ones are used in consideration of rigidity and design. This two-legged spoiler includes a horizontal wing and vertical wings curved downward at both ends thereof. And in order to improve the aerodynamic characteristic of a spoiler, what lengthened the vertical wing and made the horizontal wing high is proposed. In this spoiler, the horizontal wing vibrates up and down during high-speed driving of an automobile, so reinforcement is necessary to prevent it. A spoiler disclosed in Patent Document 1 has been proposed as a spoiler with this reinforcing measure. The spoiler includes a horizontally long horizontal wing formed into a hollow plate (a horizontal portion in Patent Document 1), and a pair of left and right vertical wings (a support portion in Patent Document 1) integrally bent downward at both ends of the horizontal wing. It has. A metal rod-like reinforcing frame (a reinforcing member in Patent Document 1) is embedded along the longitudinal direction on the back side of the horizontal blade, and the lower surface thereof is exposed to the outside.

On the other hand, the horizontal wing of the spoiler, which was extruded in a horizontally long hollow shape with aluminum alloy, both ends of this horizontal wing were connected to the rear part of the automobile with metal support legs, and the both support legs were synthesized. A structure having a structure in which it is covered with a vertical wing blow-molded into a hollow shape with a resin has also been proposed.
Japanese Patent Laid-Open No. 7-17441

  However, in the spoiler disclosed in Patent Document 1, since the horizontal wing and the vertical wing are blow-molded, the restriction on the design conditions can be eased, but the left and right vertical wings are not reinforced, so the spoiler There was a problem that the horizontal wing could not be raised due to insufficient rigidity. Further, when the horizontal wing of the spoiler vibrates, stress concentrates on the horizontal wing corresponding to the end portion of the reinforcing frame to reduce durability, and a part of the reinforcing bar is exposed on the back surface of the horizontal wing. There was also a problem that the appearance was damaged.

  On the other hand, the latter spoiler supports both ends of the horizontal wing made of aluminum alloy with a support leg made of metal, so that the rigidity as a spoiler is secured and the height is set to a desired height. Can do. However, since the horizontal blade is formed by extrusion using an aluminum alloy, it is difficult to manufacture a product having a desired outer shape, and it is not possible to improve the design. In addition, since the entire horizontal blade of the spoiler is formed of an aluminum alloy, there is a problem that the weight cannot be reduced.

  An object of the present invention is to provide a two-legged spoiler capable of solving the above-described conventional problems and improving the rigidity and the design and reducing the weight.

  In order to solve the above-mentioned problems, the invention described in claim 1 includes a portal spoiler body provided with a pair of left and right inclined vertical wings functioning as legs at both ends of a horizontal wing, and an interior of the spoiler body. And a portal-shaped reinforcing frame in which a pair of left and right inclined support portions functioning as legs are integrally curved at both ends of a metal hollow horizontal portion, and the both inclined vertical blades and the both inclined The support portion is inclined so that the lower end is positioned forward, the front flange portion and the rear flange portion are formed integrally with the front surface and the rear surface of the horizontal portion of the reinforcing frame, and both the flange portions are inclined. The gist is that the spoiler body is connected to both the flange portions by using a connecting means and is inclined in a direction substantially perpendicular to the inclination direction of the support portion.

  According to a second aspect of the present invention, in the first aspect, the spoiler body is blow molded in a hollow shape with a resin and blown into a gate shape, injection molded with the resin, and shields the reinforcing frame. The blow molded body is connected to both flange portions of the reinforcing frame by first connecting means, and the cover is connected by second connecting means.

  According to a third aspect of the present invention, in the second aspect, the first connecting means includes a plurality of fixing nuts fixed to the lower surface of the spoiler body, a plurality of fixing bolts erected on the lower surface, A plurality of bolt insertion holes formed in both flange portions, a plurality of bolts screwed to the fixing nuts from the insertion holes, and the fixing bolts penetrated to the insertion holes. The gist is that it is composed of a plurality of nuts.

  According to a fourth aspect of the present invention, in the second or third aspect, the second connecting means is provided on the back surface of the plurality of clip locking holes formed in the flange portions and the horizontal plate portion of the cover. And a plurality of clips that are attached to the plurality of mounting bases and locked in the respective clip locking holes.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the horizontal section of the reinforcing frame is inclined so that the horizontal upper and lower plates and the lower end are positioned forward. The gist is that the front plate and the rear plate are formed in a parallelogram shape, and the front plate and the front flange portion, and the rear plate and the rear flange portion are orthogonal to each other.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, a front flange portion and a rear flange portion having bolt insertion holes are integrally formed on a front surface and a rear surface of the inclined support portion of the reinforcing frame. The front flange portion is configured to be attached to a mounting bracket that is formed and attached to an automobile trunk lit by a bolt, and the bolt inserted into the bolt insertion hole of the rear flange portion is fixed to the inclined support portion of the spoiler body The gist is that the inclined support portion of the reinforcing frame and the inclined support portion of the spoiler body are connected by screwing into the fixed nut.

  According to the seventh aspect of the present invention, the front flange portion and the rear flange portion in the form of a strip plate are integrated with each other so as to be parallel or coplanar with the front surface and the rear surface of the horizontal portion having a horizontally long hollow cylindrical shape made of metal. A step of manufacturing the original shape of the reinforcing frame by cutting the formed mold material into a predetermined length, and curving both ends of the original shape in an arc around a central axis parallel to the width direction of the flange portions. A step of manufacturing a gate-shaped reinforcing frame by forming a pair of left and right inclined support portions at both ends of the horizontal portion; and housing the reinforcing frame inside the portal-shaped spoiler body, and the reinforcing frame and the spoiler body. And a step of connecting by connecting means.

  The invention according to claim 8 is the invention according to claim 7, wherein after the step of forming the reinforcing frame, part or all of the front flange portion and the rear flange portion corresponding to the curved portion of the inclined support portion is cut off. The gist is to include a process.

(Function)
In the present invention, a reinforcing frame integrally formed in a gate shape is accommodated inside the portal spoiler body, and the front flange portion and the rear flange portion formed in the hollow horizontal portion of the reinforcing frame are vertically moved. Tilted. For this reason, the rigidity which opposes the downward pushing force which acts on the horizontal wing | blade of a spoiler during the high-speed driving | running | working of a motor vehicle improves. Further, the spoiler body is molded into a desired outer shape by resin molding, and the designability and the degree of freedom of design can be improved. Furthermore, since the reinforcing frame is formed of metal and the spoiler body can be formed of resin, the spoiler is reduced in weight.

  According to the present invention, the spoiler can be improved in rigidity and design, and the spoiler can be reduced in weight.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment in which the present invention is embodied in a spoiler used in a rear part of an automobile will be described with reference to FIGS.
As shown in FIGS. 1 and 12, the spoiler S is composed of a horizontal wing Sh and a pair of left and right vertical wings Sv provided at both ends of the horizontal wing Sh. It is mounted on the top surface. As shown in FIG. 1, the spoiler S includes a spoiler body 10 having a gate shape, and a reinforcing frame 11 having a gate shape housed therein. As shown in FIG. 11, the spoiler body 10 includes a portal-shaped blow molded body 12 mounted on the upper surface of the reinforcing frame 11, and a portal-shaped cover 13 mounted on the lower surface of the reinforcing frame 11. It is comprised by. The configurations of the reinforcing frame 11, the blow molded body 12 and the cover 13 will be sequentially described below.

  First, the reinforcing frame 11 will be described. As shown in FIG. 11, the reinforcing frame 11 has a horizontally long rectangular tube-shaped horizontal portion 11a made of an aluminum alloy, and its both ends are directed obliquely forward and downward with respect to the traveling direction X of the vehicle. A pair of left and right inclined support portions 11b curved in an arc shape when viewed from X is formed in a gate shape. The central portion of the horizontal portion 11a is bent so as to slightly protrude upward in a horizontal state. A front flange portion 11c and a rear flange portion 11d are integrally formed on the front and rear surfaces of the horizontal portion 11a and the inclined support portion 11b. Bolt insertion holes 11e and clip locking holes 11f are alternately formed at a plurality of locations in both flange portions 11c and 11d of the horizontal portion 11a. Only the bolt insertion holes 11e are formed at a plurality of locations in the front flange portion 11c and the rear flange portion 11d at the lower end of the inclined support portion 11b.

  As shown in FIG. 3, the horizontal section 11a of the reinforcing frame 11 has a horizontal upper plate 11g and a lower plate 11h, and a front plate 11i and a rear plate that are inclined so that the front side is lower with respect to the traveling direction X. 11j and a substantially parallelogram cylinder. The inclination angle α of the front plate 11i and the rear plate 11j with respect to the horizontal line H is set to 60 °, for example, in the range of 50 to 70 °. The inclination angles β of the front flange portion 11c and the rear flange portion 11d with respect to the front plate 11i and the rear plate 11j are respectively set to approximately 90 °. Furthermore, the inclination angle γ with respect to the horizontal line H of the front flange portion 11c and the rear flange portion 11d in the horizontal portion 11a is set to 30 °, for example, in the range of 20 to 40 °.

Here, the manufacturing method of the said reinforcement frame 11 is demonstrated centering on FIG. 3, FIG.
First, as shown in FIG. 9, an aluminum alloy is used to extrude a mold member 11A having a hollow cylindrical part having a flat parallelogram shape, a belt-like front flange part 11c, and a rear flange part 11d. Mold. This mold member 11A is cut into a predetermined length to produce an original shape 11B of a linear reinforcing frame 11 shown by a solid line in FIG. The cross-sectional shape of the original shape 11B is the same as the cross-sectional shape of the horizontal portion 11a shown in FIG.

  Next, as shown in FIG. 10, the bolt insertion hole 11e and the clip locking hole 11f are formed on the intermediate portion and the end portion of the front flange portion 11c and the rear flange portion 11d of the original shape 11B using a punching device (not shown). Each is formed at a plurality of locations. Further, both ends of the original 11B are bent in the direction of the arrow using a not-shown bending machine, and a pair of inclined support portions 11b are formed at both ends of the horizontal portion 11a as shown in FIG. 11 is manufactured. As shown in FIG. 3, the curved direction of the inclined support portion 11b is parallel to the inclined surfaces of the front flange portion 11c and the rear flange portion 11d when the upper plate 11g of the horizontal portion 11a is in a horizontal state, and the flange portions 11c, 11c, The process is performed as shown in FIG. 4 around a central axis O parallel to the width direction of 11d. For this reason, the power for bending the front and rear flange portions 11c and 11d is minimized.

  As shown in FIG. 11, after the inclined support portion 11b is formed, the front flange portion 11c and the rear flange portion 11d of the curved portion of the inclined support portion 11b are cut off by machining to reduce the weight of the reinforcing frame 11. .

  The reinforcing frame 11 manufactured in this way is attached to the trunk lid T via attachment fittings 15 arranged at two left and right positions on the upper surface of the trunk lid T of the automobile as shown in FIGS. . A screw hole 15a is formed in the mounting bracket 15, and the bolt insertion hole 11e in a state where the front flange portion 11c formed at the lower end portion of the inclined support portion 11b of the reinforcing frame 11 is made to correspond to the screw hole 15a. Both mounting brackets 15 are attached to the reinforcing frame 11 by bolts 16 screwed into the screw holes 15a.

  Next, the blow molded body 12 will be described. As shown in FIG. 11, the blow molded body 12 is blow molded into a flat hollow shape with a synthetic resin. Examples of the synthetic resin include ABS (acrylonitrile / butadiene / styrene resin), modified PPO (polyphenylene oxide), and other thermoplastic resins such as PPO and PA (polyamide) alloy. The blow molded body 12 is composed of a horizontally long horizontal portion 12a and a pair of left and right inclined support portions 12b that are integrally curved at both ends thereof. As shown in FIG. 2, the inclined support portion 12 b is inclined in the same direction as the inclined direction of the inclined support portion 11 b of the reinforcing frame 11. The upper surface of the blow molded body 12 is a flat plate portion 12c as shown in FIG. 2, and the lower surface is a mounting plate portion 12d. A front pedestal 12e and a rear pedestal 12f are formed at a plurality of locations on the mounting plate portion 12d so as to correspond to the bolt insertion holes 11e of the reinforcing frame 11, respectively. On each pedestal 12e, 12f, a front nut 17a and a rear nut 17b are embedded and fixed so that their screw holes are exposed. On the front pedestal 12e and the rear pedestal 12f provided in the horizontal portion 12a, as shown in FIG. 5, for example, fixing bolts 18 'having a positioning function are erected at a total of three locations (only two locations are shown). .

  The operation of connecting the reinforcing frame 11 and the blow molded body 12 is performed as follows. Although the blow molded body 12 is not shown in the figure, the reinforcing frame 11 is turned upside down and placed on the mounting plate 12d, and the three fixing bolts 18 'are inserted through the bolt insertion holes 11e. A single nut 17 (see FIG. 5) is screwed into each fixing bolt 18 ′. Further, bolts 18 are screwed into the front and rear nuts 17a and 17b from bolt insertion holes 11e formed in the front flange portion 11c and the rear flange portion 11d. Further, a bolt 16 is screwed into a rear nut 17b fixed to the inclined support portion 12b of the blow molded body 12 through a bolt insertion hole 11e formed in the rear flange portion 11d. In this way, the blow molded body 12 is connected to both the flange portions 11c and 11d of the reinforcing frame 11.

  Next, the cover 13 will be described. As shown in FIG. 11, the cover 13 is injection-molded with a synthetic resin using an injection molding apparatus (not shown). As this synthetic resin, various resins similar to the above-described specific example of the blow molded body 12 are used. The cover 13 includes a horizontally long horizontal plate portion 13a and a pair of left and right inclined plate portions 13b that are integrally curved downward at both left and right end portions thereof. As shown in FIG. 2, the inclined plate portion 13 b is inclined in the same direction as the inclined direction of the inclined support portion 11 b of the reinforcing frame 11.

  As shown in FIG. 11, on the upper surface of the horizontal plate portion 13a of the cover 13, a front mounting base 13c and a rear mounting base 13d correspond to a plurality of clip locking holes 11f provided on the reinforcing frame 11 side. Are integrally formed at a plurality of locations. A mounting hole 13e (see FIGS. 6 and 8) is formed in each mounting base 13c, 13d, and a clip 19 is mounted in each mounting hole 13e. Bolt insertion holes 13f are formed at two locations on the outer surface of the lower end portion of the inclined plate portion 13b.

  As shown in FIG. 6, the reinforcing frame 11 and the cover 13 are connected by inserting and locking the clips 19 into the locking holes 11f of the front flange portion 11c and the rear flange portion 11d, respectively. Is done.

  2 and 5, male and female surface fasteners 21 and 22 are bonded to the lower surface of the mounting plate portion 12d and the upper surface of the horizontal plate portion 13a of the cover 13 so that the blow molded body 12 and the cover 13 are connected. The state is kept stable.

  The work of attaching the reinforcing frame 11, the blow molded body 12 and the cover 13 constituting the spoiler S to the trunk lid T at the rear of the automobile is performed as follows. First, the single reinforcing frame 11 and the blow molded body 12 are connected by the method described above. Thereafter, both mounting brackets 15 are connected to the reinforcing frame 11 and the blow molded body 12, and the cover 13 is connected to the reinforcing frame 11 by the method described above. Then, as shown in FIG. 2, the bolt 20 is screwed into a screw hole (not shown) formed in the mounting bracket 15 from a bolt insertion hole 13 f formed in the lower end portion of the inclined plate portion 13 b of the cover 13, and the cover 13 The inclined plate portion 13 b is fixed to the mounting bracket 15. Finally, the assembled spoiler S is placed on the trunk lid T. Although not shown, a bolt is screwed into the mounting bracket 15 from the back side of the trunk lid T through a mounting hole, and the mounting bracket 15 is connected to the trunk lid T. To conclude.

  The spoiler S configured as described above includes a horizontal wing Sh and a pair of left and right vertical wings Sv as shown in FIG. 1, and reduces running resistance by rectifying running wind during high-speed running of an automobile, Driving performance is improved by giving the vehicle a push-down force to increase the ground contact force of the tire.

According to the spoiler of the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the portal reinforcing frame 11 is housed in the portal spoiler body 10 including the blow molded body 12 and the cover 13. Further, the front flange portion 11c and the rear flange portion 11d formed on the hollow horizontal portion 11a of the reinforcing frame 11 are inclined in the vertical direction. For this reason, it is possible to improve the rigidity against the downward pushing force acting on the horizontal blades Sh of the spoiler S during high-speed driving of the automobile, the horizontal blades Sh can be set higher than the trunk lid T, and the aerodynamics of the spoiler S can be improved. The characteristics can be improved and the rear field of view can be improved.

  (2) In the above embodiment, the reinforcing frame 11 is formed of an aluminum alloy, and the blow molded body 12 and the cover 13 are formed of resin, so that the entire horizontal blade Sh is formed of an aluminum alloy. While reducing the weight of the spoiler S, the external shape of the spoiler main body 10 can be easily made into the desired shape, and the design property can be improved.

  (3) In the above embodiment, when the reinforcing frame 11 and the blow molded body 12 are connected, the plurality of fixing bolts 18 ′ erected on the front base 12e and the rear base 12f of the mounting plate portion 12d of the blow molded body 12 are provided. Thus, the joining position between the reinforcing frame 11 and the blow molded body 12 is set. For this reason, the connection operation | work of the reinforcement frame 11 and the blow molded body 12 can be performed easily.

  (4) In the above embodiment, the cover 13 is provided with the front mounting pedestal 13c and the rear mounting pedestal 13d, the clips 19 are attached to these pedestals, and these clips 19 are attached to the front and rear flange portions of the reinforcing frame 11. 11c and 11d are locked in the clip locking holes 11f. For this reason, the cover 13 can be easily attached to the reinforcing frame 11. Further, the cover 13 can be easily removed from the reinforcing frame 11.

  (5) In the above embodiment, the horizontal section 11a of the reinforcing frame 11 has a flat parallelogram shape as shown in FIG. 2, so that the vertical dimension of the horizontal section 11a can be reduced, and the spoiler S It is possible to reduce the weight by reducing the vertical thickness of the horizontal blades Sh.

  (6) In the above embodiment, as shown in FIG. 10, with both the front flange portion 11c and the rear flange portion 11d of the original shape 11B remaining, both end portions of the original shape 11B are curved and both end portions of the horizontal portion 11a. An inclined support portion 11b is formed on the substrate. Further, the front plate 11i and the front flange portion 11c, and the rear plate 11j and the rear flange portion 11d are orthogonal to each other. Therefore, when the inclined support portion 11b is curved, the cross section of the inclined support portion 11b is held in a parallelogram shape by the flange portions 11c and 11d, and the front plate 11i and the rear plate 11j shown in FIG. Bending can be prevented. If the front flange portion 11c and the rear flange portion 11d are cut before the inclined support portion 11b is curved, both ends of the original shape 11B are not properly curved, and the front plate 11i and the rear plate 11j are not curved. It turns out that buckling may occur.

In addition, you may change the said embodiment as follows.
-As shown in FIG. 13, you may leave the front side flange part 11c and the rear side flange part 11d a little in the curved part of the inclination support part 11b of the said reinforcement frame 11. As shown in FIG. Further, all of the front flange portion 11c and the rear flange portion 11d formed on the reinforcing frame 11 may be left.
As shown in FIG. 14, the flange portions 11c and 11d of the original shape 11B of the reinforcing frame 11 are machined to form a tongue-like front flange portion 11c ′ having a bolt insertion hole 11e or a clip locking hole 11f, and a rear flange portion. 11d ′, and then both ends of the original shape 11B may be curved as shown in FIG. In this embodiment, since the front flange portion 11c ′ and the rear flange portion 11d ′ are formed in a tongue shape, the weight of the reinforcing frame 11 can be expected. In this case, the curvature radius of the bending portion is increased so that the bending portion of the inclined support portion 11b does not buckle.
-As shown to Fig.16 (a), you may make it the cross section of the horizontal part 11a of the reinforcement frame 11 become a regular parallelogram cylinder. Further, as shown in FIG. 16 (b), the horizontal section 11a has a cross section of a regular parallelogram, and the upper plate 11g and the lower plate 11h are inclined so as to be on the front side. Good. As shown in FIG. 16C, the horizontal section 11a may have a cylindrical cross section, and the front flange section 11c and the rear flange section 11d may be set on the same plane. As shown in FIG. 16 (d), the horizontal portion 11a may be formed into an elliptical cylinder, and the front flange portion 11c and the rear flange portion 11d may be set on the same plane. Although not shown, the cross-sectional shape of the reinforcing frame 11 may be a regular square, a regular pentagon, or other polygons.

-You may form the material of the reinforcement frame 11 with various metals, such as stainless steel and a nickel alloy other than aluminum alloy, for example.
In FIG. 2, instead of the nuts 17a and 17b and the bolt 18 as the first connecting means between the reinforcing frame 11 and the blow molded body 12, an adhesive or a clip may be used although not shown.

  As a second connecting means of the cover 13 to the reinforcing frame 11, the cover 13 may be bonded to the blow molded body 12 with an adhesive instead of the clip 19.

The perspective view which shows one Embodiment which actualized the spoiler of this invention. The center part cross-sectional view which shows the attachment state of a spoiler. The cross-sectional view of a reinforcement frame. The front view of the upper side curved part of the inclination support part of a reinforcement frame. The cross-sectional view which passes along the fixing bolt of a spoiler body and a reinforcement frame. Cross section through the spoiler horizontal wing clip. A cross-sectional view of a horizontal spoiler wing. FIG. 7 is a cross-sectional view taken along line 1-1 of FIG. 6. The partial omission perspective view which shows the original form of a mold material and a reinforcement frame. The perspective view which formed the bolt penetration hole and the clip locking hole in the original form of the reinforcement frame. The isolation | separation perspective view which shows a reinforcement frame, a spoiler main body, and a cover. The side view which shows the relationship between a motor vehicle and a spoiler. The fragmentary perspective view of the reinforcement frame which shows another embodiment of this invention. The perspective view which shows the original form of the reinforcement frame which shows another embodiment of this invention. The perspective view which shows the reinforcement frame manufactured from the original form of FIG. (A)-(d) is a cross-sectional view which shows another embodiment of a reinforcement frame, respectively.

Explanation of symbols

  O ... center axis, S ... spoiler, 10 ... spoiler body, 11 ... reinforcing frame, 11a, 12a ... horizontal part, 11A ... mold, 11B ... original form, 11b, 12b ... inclined support part, 11c ... front flange part, 11c, 11d: flange portion, 11d: rear flange portion, 11e, 13f: bolt insertion hole, 11f: clip locking hole, 11g ... upper plate, 11h ... lower plate, 11i ... front plate, 11j ... rear plate, 12 ... blow Formed body, 13 ... cover, 13a ... horizontal plate portion, 13c, 13d ... mounting base, 15 ... mounting bracket, 16, 18, 20 ... bolt, 17a, 17b ... nut, 18 '... fixing bolt, 19 ... clip.

Claims (8)

A portal spoiler body with a pair of left and right inclined vertical wings functioning as legs on both ends of the horizontal wing, and a leg on both ends of the metal hollow horizontal section housed in the spoiler body A reinforcing frame having a gate shape in which a pair of functioning left and right inclined support portions are integrally curved, and the both inclined vertical blades and the both inclined support portions are inclined so that the lower ends are positioned forward, and the reinforcing frame The front flange portion and the rear flange portion are integrally formed with respect to the front surface and the rear surface of the horizontal portion, and both the flange portions are inclined in a direction substantially perpendicular to the inclination direction of the inclined support portion. The spoiler is characterized in that the spoiler body is connected using a connecting means. 2. The spoiler body according to claim 1, wherein the spoiler body includes a blow molded body that is blown into a hollow shape with a resin and a portal shape, and a cover that is injection molded with a resin and shields the reinforcing frame. The spoiler characterized in that the blow molded body is connected to both flange portions of the frame by first connecting means and the cover is connected by second connecting means. 3. The first connecting means according to claim 2, wherein the first connecting means includes a plurality of fixing nuts fixed to the lower surface of the spoiler body, a plurality of fixing bolts erected on the lower surface, and a plurality of flanges formed on the flange portions. A bolt insertion hole, a plurality of bolts screwed into the fixing nuts from the insertion holes, and a plurality of nuts screwed into the fixing bolts penetrated through the insertion holes. Spoiler characterized by that. In Claim 2 or 3, said 2nd connecting means is attached to a plurality of clip locking holes formed in said both flange parts, and a plurality of mounting bases provided in the back of the horizontal plate part of said cover, The spoiler is constituted by a plurality of clips that are respectively locked in the clip locking holes. The horizontal section of the horizontal portion of the reinforcing frame according to any one of claims 1 to 4, comprising a horizontal upper plate and a lower plate, and a front plate and a rear plate that are inclined so as to be positioned forward toward the lower end. The spoiler is formed in a parallelogram shape, and the front plate and the front flange portion, and the rear plate and the rear flange portion are orthogonal to each other. 6. The front flange portion and the rear flange portion having bolt insertion holes are integrally formed on the front surface and the rear surface of the inclined support portion of the reinforcing frame according to claim 1, and are attached to a trunk lit of an automobile. The front flange portion can be attached to the mounting bracket by a bolt, and the bolt inserted into the bolt insertion hole of the rear flange portion is screwed into a fixing nut fixed to the inclined support portion of the spoiler body. Thus, the inclined support part of the reinforcing frame and the inclined support part of the spoiler body are connected to each other. A metal mold that is integrally formed so that the front flange portion and the rear flange portion in the form of a strip plate are parallel to or coplanar with each other on the front and rear surfaces of a horizontal portion that is formed in a horizontally long hollow cylindrical shape made of metal to a predetermined length. Cutting and manufacturing the original shape of the reinforcing frame;
The gate-shaped reinforcing frame is formed by curving both ends of the original shape in an arc around a central axis parallel to the width direction of the flange portions to form a pair of left and right inclined support portions at both ends of the horizontal portion. Manufacturing process,
A method of manufacturing a spoiler, comprising: housing the reinforcing frame in a portal spoiler body and connecting the reinforcing frame and the spoiler body by a connecting means. 8. The spoiler according to claim 7, further comprising a step of cutting out part or all of the front flange portion and the rear flange portion corresponding to the curved portion of the inclined support portion after the step of forming the reinforcing frame. Manufacturing method.

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