Roof spoiler

Abstract

To provide a roof spoiler capable of improving degree of freedom for adjustment in a width direction.SOLUTION: A roof spoiler 1 is arranged on a roof surface Rs of a vehicle having a cab A and a cargo room B higher than the roof surface Rs of the cab A and arranged in a width direction of the cab A. The roof spoiler 1 is provided with a first part 11 including a first wind guide face 11s to guide wind from the roof surface Rs to the cargo room B, and a pair of second parts 12, 13 including second wind guide face 12s, 13s to guide wind from the roof surface Rs to the cargo room B and placed on both sides of the first part 11 in the width direction. Each of the first part 11 and the pair of the second part 12, 13 is configured to be independent from each other.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a roof spoiler. [Background technology]

[0002] Patent Document 1 describes a roof spoiler structure. This roof spoiler structure is a spoiler holding structure that holds a spoiler on the front edge portion or rear edge portion of the roof of an automobile, and the spoiler has a main body portion that extends in a direction along the front edge or rear edge of the roof and an attachment portion that is fixedly connected to the main body portion, and the attachment portion is fixedly connected to a vehicle exterior product that is fixed near the front edge or rear edge of the roof, thereby holding the spoiler to the vehicle body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-237985 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a roof spoiler used in a vehicle having a cab and a luggage compartment that is higher than the cab, if the overall width of the roof spoiler is shorter than the width of the cab, the aerodynamic performance of the portion of the luggage compartment that is not covered by the roof spoiler may be deteriorated. Therefore, it is desirable to improve the degree of freedom of widthwise adjustment of the roof spoiler so that it can be adapted to cabs of various widths.

[0005] An object of the present disclosure is to provide a roof spoiler that allows for improved freedom of adjustment in the width direction. [Means for solving the problem]

[0006] The roof spoiler of the present disclosure is provided on the roof surface of a vehicle having a cab and a luggage compartment that is higher than the roof surface of the cab, and is a roof spoiler extending in the width direction of the cab, and comprises a first part including a first wind guide surface for directing air from the roof surface toward the luggage compartment, and a pair of second parts including a second wind guide surface for directing air from the roof surface toward the luggage compartment and arranged on both sides of the first part in the width direction, and the first part and the pair of second parts are each configured separately from each other.

[0007] This roof spoiler is provided on the roof surface of a cab in a vehicle having a cab and a luggage compartment that is higher than the cab. This roof spoiler includes a first portion provided with an air guide surface for guiding air from the roof surface toward the luggage compartment, and a pair of second portions. Therefore, aerodynamic performance is improved. In particular, in this roof spoiler, the first portion and the pair of second portions are configured separately from each other. Therefore, the positions of the first portion and the pair of second portions can be adjusted according to the width of the cab. In this way, this roof spoiler improves the degree of freedom of adjustment in the width direction.

[0008] In the roof spoiler according to the present disclosure, the first portion may include an overlapping portion that overlaps at least one of the pair of second portions when viewed from a direction intersecting the first wind guiding surface and the second wind guiding surface. In this case, it is possible to adjust the positions of the first portion and the second portion within a width range of the overlapping portion between the first portion and the second portion so that no gap occurs between the first portion and the second portion.

[0009] In the roof spoiler according to the present disclosure, at least one of the pair of second portions includes a bottom surface facing the opposite side of the second wind guiding surface, and the bottom surface may be inclined so that a gap between the bottom surface and a structure on the cab side facing the bottom surface gradually increases toward the rear of the cab. In this case, the flow speed of the air flowing through the gap between the bottom surface of the second portion and the structure on the cab side is reduced toward the rear (i.e., the luggage compartment), thereby reducing the drag of the air against the luggage compartment. Effect of the Invention

[0010] According to the present disclosure, it is possible to provide a roof spoiler that allows for improved freedom of adjustment in the width direction. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing a roof spoiler according to one embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Diagram 3] FIG. 3 is an exploded perspective view of the roof spoiler shown in FIGS. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is a schematic side view including the intake duct and the second portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. In the description of each drawing, the same or corresponding elements are denoted by the same reference numerals, and duplicated description may be omitted.

[0013] Fig. 1 is a perspective view showing a roof spoiler according to one embodiment. Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1. Fig. 3 is an exploded perspective view of the roof spoiler shown in Figs. 1 and 2. Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 3. The roof spoiler 1 shown in Figs. 1 to 4 is applied to a vehicle having a cab A in which a driver's seat and the like are provided, and a luggage compartment B provided behind the cab A and higher than the cab A.

[0014] In this embodiment, the cab A includes a high roof C, and the upper surface of the high roof C is the roof surface Rs. Therefore, in this embodiment, the luggage compartment B being higher than the cab A means that the upper surface Bs of the luggage compartment B is higher than the roof surface Rs. In this embodiment, an intake duct D is provided at the rear of one side in the width direction of the high roof C (here, the right side with respect to the traveling direction).

[0015] The roof spoiler 1 is provided on the roof surface Rs. More specifically, the roof spoiler 1 is provided so as to reach the rear end of the roof surface Rs, and extends in the width direction of the cab A (hereinafter, may be simply referred to as the "width direction"). As an example, the roof spoiler 1 is provided on the roof surface Rs across the entire width of the cab A. The roof spoiler 1 reduces the overall drag of the luggage compartment B by guiding air on the air guiding surface, thereby improving aerodynamic performance.

[0016] The roof spoiler 1 is divided into multiple (here, three) parts. More specifically, the roof spoiler 1 includes a first part 11 and a pair of second parts 12, 13. In this embodiment, the roof spoiler 1 is composed of the first part 11 and the second parts 12, 13. The first part 11 is provided on the roof surface Rs, for example, in the center in the width direction of the cab A. The first part 11 has a first wind guide surface 11s, which is its upper surface. The first wind guide surface 11s is inclined so as to head upward (toward the upper surface Bs of the luggage compartment B) as it moves rearward.

[0017] As an example, the first portion 11 is fixed to the high roof C by fasteners E such as bolts via a reinforcing bracket 21 disposed at the center of the first portion 11 in the width direction and reinforcing brackets 22, 23 disposed at both ends of the first portion 11 in the width direction. The first portion 11 is a resin member having an open cross section, and can be formed by, for example, RIM (Reaction Injection Molding) molding.

[0018] The pair of second portions 12, 13 are disposed on both sides of the first portion 11 in the width direction of the cab A so as to sandwich the first portion 11 therebetween. The second portions 12, 13 are disposed, for example, at both ends in the width direction of the cab A. The second portion 12 includes a second air guide surface 12s which is its upper surface, and the second portion 13 includes a second air guide surface 13s which is its upper surface. The second air guide surfaces 12s, 13s are each inclined so as to head upward toward the rear (toward the upper surface Bs of the luggage compartment B).

[0019] As an example, the second portions 12, 13 are directly fixed to the high roof C by fasteners E such as bolts. The second portions 12, 13 are each a resin member having a closed cross section, and are formed by, for example, blow molding.

[0020] Here, the first portion 11 has an overlapping portion that overlaps at least one of the second portions 12 and 13 when viewed from a direction intersecting the first wind guiding surface 11s and the second wind guiding surfaces 12s and 13s (for example, the front-rear direction of the vehicle). In this embodiment, the first portion 11 has an overlapping portion 15 that overlaps the second portion 12 and an overlapping portion 16 that overlaps the second portion 13 when viewed from a direction intersecting the first wind guiding surface 11s and the second wind guiding surfaces 12s and 13s. This makes it possible to adjust the width of the roof spoiler 1 without forming a gap between the first portion 11 and the second portions 12 and 13 within the width range of the overlapping portions 15 and 16.

[0021] Further, the rear end of the first portion 11 is substantially aligned with the rear ends of the second portions 12 and 13, while the front end of the first portion 11 is provided to protrude forward from the front ends of the second portions 12 and 13. As a result, the inclination of the first air guide surface 11s of the first portion 11 is gentler than the inclination of the second air guide surfaces 12s and 13s of the second portions 12 and 13. As a result, a smooth flow rate is realized for the air flowing through the central portion in the width direction of the cab A. The height of the upper end of the first air guide surface 11s can be set to an optimal height for realizing a smooth flow rate by aligning the height of the upper surface Bs of the luggage compartment B as a standard.

[0022] 5 is a schematic side view including the intake duct and the second portion. As shown in FIG. 5, at least the second portion 12 of the pair of second portions 12, 13 includes a bottom surface 12r facing the opposite side to the second wind guide surface 12s, and the bottom surface 12r is inclined so that a gap G between the bottom surface 12r and a structure (here, the intake duct D) on the cab A side facing the bottom surface 12r gradually increases toward the rear of the cab A (i.e., the luggage compartment B side). As a result, the flow velocity of the air introduced from the front end side of the bottom surface 12r into the gap G is reduced toward the rear end side of the bottom surface 12r. As a result, the drag force of the air led out from the gap G at the rear end side of the bottom surface 12r against the luggage compartment B is reduced.

[0023] Furthermore, the other of the pair of second parts 12, 13, i.e., second part 13, may also be inclined so that the gap between its bottom surface and the structure on the cab A side gradually increases toward the rear of the cab A (i.e., the cargo space B side).

[0024] As described above, the roof spoiler 1 according to this embodiment is provided on the roof surface Rs of the cab A in a vehicle having a cab A and a luggage compartment B that is higher than the cab A. The roof spoiler 1 includes a first portion 11 provided with an air guide surface for guiding air from the roof surface Rs toward the luggage compartment B, and a pair of second portions 12, 13. Therefore, the aerodynamic performance is improved. In particular, in the roof spoiler 1, the first portion 11 and the pair of second portions 12, 13 are configured separately from each other. Therefore, the positions of the first portion 11 and the pair of second portions 12, 13 can be adjusted according to the width of the cab A. In this way, the roof spoiler 1 improves the degree of freedom of adjustment in the width direction.

[0025] Moreover, the roof spoiler 1 according to this embodiment is composed of at least three parts (a first part 11 and second parts 12, 13). Therefore, when realizing a width suitable for the cab A, it is possible to avoid increasing the size of each part of the roof spoiler 1, and by sliding the installation positions of each part, it is possible to absorb differences in cab widths and standardize each part for a plurality of different cab widths. This makes it possible to improve the freedom of manufacture and reduce costs.

[0026] In the roof spoiler 1 according to this embodiment, when viewed from a direction intersecting the first wind guiding surface 11s and the second wind guiding surfaces 12s, 13s, the first portion 11 includes overlapping portions 15, 16 that overlap at least one of the pair of second portions 12, 13. For this reason, it is possible to adjust the positions of the first portion 11 and the second portions 12, 13 within the width range of the overlapping portions 15, 16 between the first portion 11 and the second portions 12, 13 so that no gap is generated between the first portion 11 and the second portions 12, 13.

[0027] Furthermore, in the roof spoiler 1 according to this embodiment, at least one of the pair of second portions 12, 13 includes a bottom surface (e.g., bottom surface 12r) facing the opposite side of the second wind guiding surfaces 12s, 13s. The bottom surface is inclined so that a gap G between the bottom surface and a structure on the cab A side (e.g., intake duct D) facing the bottom surface gradually increases toward the rear of the cab A. For this reason, the flow speed of the air flowing through the gap G between the bottom surfaces of the second portions 12, 13 and the structure on the cab A side decreases toward the rear (i.e., the luggage compartment B), thereby reducing the drag of the air against the luggage compartment B.

[0028] In addition, the second portions 12, 13 are disposed outside the first portion 11 and are therefore easily exposed to the outside. In contrast, in the roof spoiler 1 according to this embodiment, the second portions 12, 13 have a closed cross section, so that deterioration in the aesthetic appearance of the second portions 12, 13 from the outside is suppressed, and deterioration in aerodynamic performance is also suppressed.

[0029] The above embodiment has been described as one aspect of the present invention, therefore the present invention is not limited to the above embodiment and may be modified as desired.

[0030] For example, in the above embodiment, the first portion 11 has overlapping portions 15, 16 that overlap with the second portions 12, 13, respectively, but the first portion 11 may not have at least one of the overlapping portions 15, 16. Also, in the above embodiment, the bottom surface of at least one of the second portions 12, 13 is inclined so that the gap G gradually increases toward the rear, but such an inclination is not necessary. Furthermore, the roof spoiler 1 may be divided into four or more portions. [Explanation of symbols]

[0031] 1...roof spoiler, 11...first part, 11s...first air guide surface, 12, 13...second part, 12s, 13s...second air guide surface, 15, 16...overlapping part, A...cab, B...luggage compartment, C...high roof, Rs...roof surface.

Claims

1. A roof spoiler provided on a roof surface of a vehicle having a cab and a luggage compartment higher than a roof surface of the cab, the roof spoiler extending in a width direction of the cab, a first portion including a first wind guide surface for guiding wind from the roof surface toward the luggage compartment; a pair of second portions including a second wind guide surface for guiding wind from the roof surface toward the luggage compartment and disposed on both sides of the first portion in the width direction; Equipped with The first portion and the pair of second portions are configured separately from each other. Roof spoiler.

2. When viewed from a direction intersecting the first airflow guiding surface and the second airflow guiding surface, the first portion includes an overlapping portion that overlaps at least one of the pair of second portions.

2. The roof spoiler according to claim 1.

3. At least one of the pair of second portions includes a bottom surface facing an opposite side to the second air guide surface, The bottom surface is inclined so that a gap between the bottom surface and a structure on the cab side facing the bottom surface gradually increases toward the rear of the cab.

3. A roof spoiler according to claim 1 or 2.

Images