Windshield molding structure

Abstract

To provide a windshield molding structure that can suppress occurrence of wind noise in a narrow band while reducing influence on aerodynamic performance.SOLUTION: A windshield molding 1 comprises a vertical molding member 10 installed at a side edge part in a vehicle width direction of a windshield glass 2 arranged at a front part of a vehicle. The vertical molding member 10 has a concavo-convex part 13 in which concavities and convexes are alternately formed, along a side edge in the vehicle width direction of the windshield glass 2, at least at a lower portion on a surface 10A at the front side of the vehicle.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a windshield molding structure. [Background technology]

[0002] In general, a windshield molding is installed on the periphery of the windshield glass of a vehicle such as an automobile. For example, Patent Document 1 discloses a conventional windshield molding structure in which windshield moldings formed by resin injection molding are installed on the left and right sides of the windshield glass. The windshield molding of Patent Document 1 has a base that is fitted and fixed to the windshield glass, and an inner lip and an outer lip that abut against a fixed glass molding installed on a fixed window glass arranged on an upper part of a front pillar, and a sealing thin film that substantially closes a space surrounded by the base, the inner lip, and the outer lip is integrally formed to suppress the generation of wind noise caused by the running wind passing through the space. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-184843 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, aerodynamic noise that may occur around the windshield glass includes narrow-band wind noise in addition to the wind noise caused by the space formed by the windshield molding as described above. One of the factors that may cause narrow-band wind noise is vortices that are generated when the boundary layer of the traveling wind that passes over the windshield molding and flows along the side of the vehicle body separates. It is known that boundary layer separation is more likely to occur when the traveling wind along the side of the vehicle body is in laminar flow, and in such cases, the probability of narrow-band wind noise occurring increases. The conventional structure of the windshield molding described above does not take into consideration the generation of narrow-band wind noise as described above, and there is room for improvement.

[0005] The present invention has been made in light of the above-mentioned points, and has an object to provide a windshield molding structure that can suppress the generation of narrow-band wind noise while reducing the impact on aerodynamic performance. [Means for solving the problem]

[0006] In order to achieve the above object, one aspect of the present invention provides a windshield molding structure including a molded member installed on a vehicle width direction side edge of a windshield glass arranged at the front of a vehicle, the molded member in this windshield molding structure having an uneven portion on at least a lower portion of a surface on the vehicle front side, in which unevenness is formed alternately along the vehicle width direction side edge of the windshield glass. Effect of the Invention

[0007] According to the windshield molding structure of the present invention, it is possible to suppress the generation of narrow-band wind noise while reducing the effect on aerodynamic performance. [Brief description of the drawings]

[0008] [Figure 1] 1 is a front view showing a windshield molding structure according to an embodiment of the present invention. [Diagram 2] 4 is an enlarged perspective view showing the periphery of a protrusion of the concave-convex portion in the embodiment. FIG. [Diagram 3] 3 is a cross-sectional view taken along line AA in FIG. 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a front view showing a windshield molding structure according to an embodiment of the present invention. In each of the drawings described below, the arrow F direction indicates the front in the vehicle longitudinal direction, the arrow O direction indicates the outside in the vehicle width direction, and the arrow U direction indicates the upper side in the vehicle vertical direction. In addition, "left and right" in the description of this embodiment correspond to the left and right when looking at the front of the vehicle from inside the vehicle cabin.

[0010] In FIG. 1, a windshield molding 1 according to this embodiment is installed on the periphery of a windshield glass 2 of a vehicle such as an automobile. The windshield glass 2 is fixed to a windshield opening edge (not shown) provided at the front of the vehicle with an adhesive or the like. The windshield opening edge is formed, for example, by left and right front pillars (A-pillars), a roof panel, and a cowl (none of which are shown). A black ceramic portion 2A is provided on the bonding surface of the windshield glass 2 with the windshield opening edge. The black ceramic portion 2A protects the adhesive applied to the bonding surface from ultraviolet rays and makes the adhesive invisible from outside the vehicle.

[0011] The windshield molding 1 includes a pair of left and right vertical molding members 10 installed on the vehicle width direction side edges of the windshield glass 2, and a horizontal molding member 20 installed on the vehicle upper side edge of the windshield glass 2. The horizontal molding member 20 extends in the vehicle width direction, and both ends in the vehicle width direction are connected to the upper ends of the left and right vertical molding members 10. The left and right vertical molding members 10 have mutually symmetrical structures, and only the right vertical molding member 10 is shown in FIG. 1. The structure of the right vertical molding member 10 will be described below, and the structure of the left vertical molding member 10 will be omitted. In this embodiment, the left and right vertical molding members 10 correspond to the "molded members" of the present invention.

[0012] The vertical molded member 10 is a member formed by, for example, injection molding of a resin. The vertical molded member 10 extends from an upper end portion to a lower end portion of the side edge portion in the vehicle width direction of the windshield glass 2. That is, the vertical molded member 10 in this embodiment is a long injection molded member extending along the side edge portion in the vehicle width direction of the windshield glass 2.

[0013] The vertical molding member 10 has an uneven portion 13 in which unevenness is alternately formed along the vehicle width direction side edge of the windshield glass 2 in a lower portion of the surface 10A on the vehicle front side. The uneven portion 13 in this embodiment has a plurality of protrusions 131 protruding from the surface 10A toward the vehicle front side, and each protrusion 131 is arranged at intervals along the vehicle width direction side edge of the windshield glass 2. Note that in this embodiment, the uneven portion 13 is not provided on the upper portion of the surface 10A on the vehicle front side. The specific structure of the vertical molding member 10 will be described in detail below with reference to Figs. 2 and 3.

[0014] Fig. 2 is an enlarged perspective view showing the periphery of the protrusions 131 of the concave-convex portion 13 in this embodiment (the area surrounded by the dashed line in Fig. 1), and Fig. 3 is a cross-sectional view taken along the line AA in Fig. 2. As shown in Figures 2 and 3, the vertical molded member 10 in this embodiment is broadly divided into a base portion 11 that is attached to the side edge portion of the windshield glass 2 in the vehicle width direction, and a lip portion 12 that extends from the base portion 11 to the outside in the vehicle width direction (the opposite side to the windshield glass 2).

[0015] The base 11 has a substantially U-shaped cross section that opens toward the inside in the vehicle width direction, and the vertical molding member 10 is attached to the windshield glass 2 so that the vehicle width direction side edge of the windshield glass 2 is located inside the substantially U-shaped cross section (FIG. 3). The substantially U-shaped inner wall of the base 11 is formed so that the overall width in the vehicle width direction of the front wall portion located on the vehicle front side is wider than the overall width in the vehicle width direction of the rear wall portion located on the vehicle rear side. In other words, the base 11 of the vertical molding member 10 is formed so that, when attached to the vehicle width direction side edge of the windshield glass 2, the front part 11A located on the vehicle front side (outside of the vehicle) with respect to the windshield glass 2 extends toward the vehicle width direction center side of the windshield glass 2 more than the rear part 11B located on the vehicle rear side (inside of the vehicle). The base 11 of the vertical molding member 10 and the vehicle width direction side edge of the windshield glass 2 are fixed with an adhesive 3.

[0016] The lip portion 12 has an outer lip 12A and an inner lip 12B. The outer lip 12A extends from a front portion of the base 11 on the outer side in the vehicle width direction, curving toward the rear side of the vehicle as it moves outward in the vehicle width direction. The inner lip 12B extends from a rear portion of the base 11 on the outer side in the vehicle width direction, curving toward the front side of the vehicle as it moves outward in the vehicle width direction. The lip portion 12 is formed so that the tip portions of the outer lip 12A and the inner lip 12B come into contact with a front pillar (not shown) when the base 11 is attached to a side edge portion of the windshield glass 2 in the vehicle width direction.

[0017] The above-mentioned surface 10A of the vertical molded member 10 corresponds to the surface of the base 11 on the vehicle front side and the surface of the outer lip 12A on the vehicle front side. In this embodiment, the above-mentioned uneven portion 13 is integrally molded on the lower portion of the surface 10A on the vehicle front side of the base 11. In other words, the vertical molded member 10 in this embodiment is a member in which the base 11, the lip portion 12, and the uneven portion 13 are integrally molded by resin injection molding.

[0018] The uneven portion 13 is formed by forming a regular uneven shape on the surface 10A of the base 11. The uneven shape has a predetermined shape, size, and pitch. In this embodiment, the uneven shape is formed by a plurality of protrusions 131 protruding from the surface 10A of the base 11 toward the front side of the vehicle and the surface 10A. The plurality of protrusions 131 are arranged at approximately equal intervals along the longitudinal direction of the vertical molded member 10, for example, at a pitch P of about 50 mm (FIG. 1).

[0019] Each protrusion 131 has a shape in which a width W1 in the vehicle vertical direction is widest at the inner portion in the vehicle width direction when viewed from the front, and the width W1 gradually narrows toward the outer portion in the vehicle width direction (FIG. 2). The maximum width W1 in the vehicle vertical direction of each protrusion 131 is preferably about 4 mm, for example. Moreover, the total width W2 in the vehicle width direction of each protrusion 131 is set to be equal to or greater than the maximum width W1 in the vehicle vertical direction, and is preferably about 6 mm, for example (FIG. 3).

[0020] Furthermore, each protrusion 131 has a shape in which the height H from the surface 10A of the vertical molded member 10 is highest at the inner portion in the vehicle width direction, and the height H gradually decreases toward the outer portion in the vehicle width direction (FIG. 3). The maximum height H of each protrusion 131 is preferably about 2 mm, for example. However, the maximum width W1 in the vehicle up-down direction, the overall width W2 in the vehicle width direction, and the maximum height H of each protrusion 131 are not limited to the above example, and can be set appropriately depending on the shape of the windshield glass 2 and the side of the vehicle.

[0021] Specifically, in this embodiment, each protrusion 131 is located further forward of the vehicle front surface 10A of the base 11, and has a front wall surface 131A formed in a teardrop shape when viewed from the front, and a side wall surface 131B extending from the periphery of the front wall surface 131A to the surface 10A of the base 11 (Figures 2 and 3).

[0022] The front wall surface 131A is formed so that the apex of the teardrop shape is located outside in the vehicle width direction, and the curved portion facing the apex is located inside in the vehicle width direction (the center side in the vehicle width direction of the windshield glass 2). The front wall surface 131A is also formed so that the inside portion in the vehicle width direction is farthest from the surface 10A of the base 11, and gradually approaches the surface 10A of the base 11 toward the outside in the vehicle width direction.

[0023] The side wall surface 131B has a curved surface at an inner portion in the vehicle width direction corresponding to the curved portion of the front wall surface 131A facing the center side in the vehicle width direction of the windshield glass 2. The height (length in the vehicle front-rear direction) of the side wall surface 131B is maximum at the curved surface at the inner portion in the vehicle width direction and gradually decreases toward the outer side in the vehicle width direction.

[0024] Each protrusion 131 having the above-mentioned shape is disposed on the vehicle width direction outer side of the R-shaped portion 10B on the vehicle width direction inner side of the vertical molded member 10 (base portion 11) (FIGS. 2 and 3). The R-shaped portion 10B is formed by rounding a corner portion connecting the surface 10A of the vertical molded member 10 (base portion 11) and the vertical wall surface 10C on the vehicle width direction inner side. The vertical wall surface 10C of the vertical molded member 10 is the end surface on the vehicle width direction inner side of the front portion 11A of the base portion 11 described above, and is the surface facing the vehicle width direction center side of the windshield glass 2.

[0025] Next, the operation of the windshield molding 1 according to this embodiment will be described. In a vehicle in which the windshield molding 1 having the above-described structure is installed on the periphery of the windshield glass 2, when the vehicle is traveling, wind is generated that flows outward in the vehicle width direction along the front surface (exterior surface of the vehicle) of the windshield glass 2. This wind passes over the left and right vertical molding members 10 of the windshield molding 1 installed on both edges of the windshield glass 2 in the vehicle width direction, and flows toward the rear of the vehicle along the left and right vehicle sides.

[0026] At this time, in the vicinity of the uneven portion 13 of the vertical molding member 10, the flow of the traveling wind is hindered by each of the protrusions 131, and turbulence occurs. Specifically, the traveling wind that reaches the vicinity of the side edge portion in the vehicle width direction of the windshield glass 2 flows toward the uneven portion 13 along the vertical wall surface 10C and the R-shaped portion 10B of the vertical molding member 10. Then, of the traveling wind that reaches the uneven portion 13, the traveling wind that passes through the portion where the protrusion 131 is not formed (the concave portion of the uneven shape) flows toward the outside in the vehicle width direction along the surface 10A of the vertical molding member 10. On the other hand, the traveling wind that passes through the portion where the protrusion 131 is formed (the convex portion of the uneven shape) flows along the side wall surface 131B and the front wall surface 131A of the protrusion 131, and the flow of the traveling wind along the surface 10A of the vertical molding member 10 is disturbed. For this reason, the state of the traveling wind that passes near the uneven portion 13 becomes turbulent.

[0027] The turbulent wind flows along the outer lip 12A of the vertical molded member 10, and then flows toward the rear of the vehicle along the front pillar and the side of the vehicle body. This causes the wind flowing along the side of the vehicle body to become turbulent, making it difficult for boundary layer separation to occur, thereby reducing the probability of narrow-band wind noise occurring.

[0028] As described above, in the windshield molding 1 according to this embodiment, the vertical molded member 10 installed on the side edge of the windshield glass 2 in the vehicle width direction has the uneven portion 13 on the lower portion of the surface 10A on the vehicle front side, thereby making it possible to suppress the generation of narrow-band wind noise around the windshield glass 2. Although such uneven portion 13 may deteriorate aerodynamic performance, the uneven portion 13 is provided only on the lower portion of the surface 10A of the vertical molded member 10, which is effective in suppressing narrow-band wind noise, thereby minimizing the deterioration of aerodynamic performance. Therefore, according to the windshield molding 1 according to this embodiment, it is possible to suppress the generation of narrow-band wind noise while reducing the influence on aerodynamic performance. For a vehicle to which such a windshield molding 1 is applied, it is expected that the quality regarding aerodynamic noise will be improved, as well as the fuel economy (fuel consumption rate) or power consumption (electricity consumption rate).

[0029] Moreover, in the windshield molding 1 according to this embodiment, each protrusion 131 of the uneven portion 13 has a shape in which the width W1 in the vehicle vertical direction is widest at the inner part in the vehicle width direction in a front view, and the width W1 narrows toward the outer side in the vehicle width direction. According to such a shape of each protrusion 131, the air resistance of each protrusion 131 is small, so that the influence on aerodynamic performance can be further reduced. In particular, if each protrusion 131 has a teardrop shape in a front view, the air resistance of each protrusion 131 is further reduced, so that the influence on aerodynamic performance can be effectively reduced.

[0030] Furthermore, in the windshield molding 1 according to this embodiment, each protrusion 131 of the uneven portion 13 has a shape in which the height H from the surface 10A of the vertical molded member 10 is greatest at the inner portion in the vehicle width direction, and the height H decreases toward the outer side in the vehicle width direction. With such a shape of each protrusion 131, the air resistance of each protrusion 131 is further reduced, so that the effect on aerodynamic performance can be more effectively reduced.

[0031] Additionally, in the windshield molding 1 according to this embodiment, the protrusions 131 of the uneven portion 13 are disposed further outward in the vehicle width direction than the R-shaped portion 10B of the vertical molded member 10. Such an arrangement of the protrusions 131 can reliably make the state of the traveling wind passing through the uneven portion 13 a turbulent flow, thereby making it possible to effectively suppress the generation of narrow-band wind noise.

[0032] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and various modifications and changes are possible based on the technical concept of the present invention. For example, in the above embodiment, an example was described in which the uneven portion 13 was formed on the lower portion of the surface 10A of the vertical molded member 10 (base portion 11), but it is also possible to form the uneven portion 13 in a range extending beyond the center in the vertical direction to the upper portion. In other words, the uneven portion of the present invention only needs to be formed on at least the lower portion of the surface of the molded member on the vehicle front side.

[0033] In the above embodiment, an example has been described in which the uneven portion 13 has a plurality of teardrop-shaped projections 131 arranged at a predetermined pitch P, but the uneven shape of the uneven portion is not limited to the above example. For example, instead of the projections 131, grooves extending in the vehicle width direction may be formed at intervals along the vehicle width direction side edges of the windshield glass, which can also make the traveling wind state turbulent.

[0034] Furthermore, in the above embodiment, an example of the vertical molded member 10 in which the base 11, the lip 12, and the uneven portion 13 are integrally molded by resin injection molding has been described, but the vertical molded member may be formed by combining two or more types of members made of different materials and / or molding methods. Furthermore, the shapes of the base 11 and the lip 12 can also be appropriately changed to match the shapes of the windshield glass, the front pillar, etc. [Explanation of symbols]

[0035] 1. Windshield molding 2. Windshield glass 10...Vertical molding member (molding member) 10A…Surface 10B…R shape part 10C…Vertical wall 11...Base 11A...front part 11B…Back part 12…Lip 12A…Outer lip 12B…Inner lip 13...Uneven part 131...Protrusion 131A…Front wall 131B…Side wall 20...Horizontal molding member H…Height P…Pitch W1: Vehicle width in the vertical direction W2: Overall width in the vehicle width direction

Claims

1. A windshield molding structure including a molding member installed on a vehicle width direction side edge portion of a windshield glass disposed at a front portion of a vehicle, A windshield molding structure characterized in that the molded member has an uneven portion in which unevenness is alternately formed along the vehicle width direction side edge of the windshield glass, at least in a lower portion of the surface on the vehicle front side.

2. The uneven portion has a plurality of protrusions protruding from the surface toward a front side of the vehicle, and the protrusions are arranged at intervals along a side edge of the windshield glass in a vehicle width direction, 2. The windshield molding structure according to claim 1, wherein each of the protrusions has a width in the vehicle vertical direction that is widest at an inner portion in the vehicle width direction when viewed from the front, and the width narrows toward the outer portion in the vehicle width direction.

3. 3. The windshield molding structure according to claim 2, wherein each of the protrusions has a shape such that its height from the surface is greatest at an inner portion in the vehicle width direction, and the height decreases toward the outer portion in the vehicle width direction.

4. The molded member has an R-shaped portion in which a corner portion connecting the surface and a vertical wall surface on the inside in the vehicle width direction is rounded, The windshield molding structure according to claim 2 , wherein the protrusions are disposed outward in a vehicle width direction relative to the R-shaped portion.

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