WINDSHIELD PROFILE STRUCTURE

Abstract

[Problem to be solved] To specify a windshield profile strip structure that can reduce the occurrence of narrowband wind noise while dampening the impact on aerodynamic performance. [Solution] A windshield profile strip 1 includes a vertical molded part 10, installed on a side edge section in the vehicle width direction of a windshield 2 arranged in a vehicle front section. The vertical molded part 10 includes a textured section 13 in which projections and recesses are formed alternately along a side edge in the vehicle width direction of the windshield 2, at least in a lower area of ​​a surface 10A on the vehicle front.

Description

[Technical field]

[0001] The invention relates to a windshield profile strip structure. [State of the art]

[0002] A windshield molding is generally located in a peripheral edge portion of a windshield in a vehicle, such as a car. For example, Patent Document 1 shows a conventional structure of a windshield molding in the form of a structure in which the molding is formed by resin injection molding and is located on the right and left side portions of a windshield. The windshield molding according to Patent Document 1 includes a base portion fitted and fixed to the windshield, and an inner lip and an outer lip that abut against a fixed glass molding installed in a fixed window glass located in an upper portion of a front pillar.By integrally forming a sealing thin film that essentially encloses a space enclosed by the base part, the inner lip and the outer lip, the occurrence of wind noise caused by the airflow passing through this space is reduced. [Publications][Patent specification]

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

[0004] Furthermore, in addition to the wind noise created by the windshield molding as described above, narrowband wind noise is assumed to be generated as aerodynamic noise around the windshield. One possible cause of narrowband wind noise is a vortex created by the separation of a boundary layer of the airflow flowing over the windshield molding and along the side surface of the vehicle body. Boundary layer separation is known to occur easily when the airflow flowing along the side surface of the vehicle body is a laminar flow, and in this case, the likelihood of narrowband wind noise occurring increases.The above-mentioned occurrence of narrowband wind noise is not taken into account in the conventional structure of the windshield molding discussed above, so there is room for improvement.

[0005] The present invention has been made in view of the above circumstance and aims to provide a windshield molding structure that can reduce the occurrence of narrow-band wind noise and dampen the influence on aerodynamic performance. [Means of solving the problem]

[0006] To achieve the above object, one aspect of the present invention provides a windshield molding structure including a molding installed in a vehicle width direction side edge portion of a windshield located in a vehicle front part. The molding in the windshield molding structure includes a bump portion in which projections and recesses are alternately formed along a vehicle width direction side edge of the windshield in at least a lower part of a surface on the vehicle front side. [Advantageous effects of the invention]

[0007] The windshield profile strip structure according to the invention makes it possible to reduce the occurrence of narrow-band wind noise while at the same time dampening the influence on aerodynamic performance. [Brief description of the drawings] Fig. 1 is a front view of a windshield molding structure according to an embodiment of the invention. Fig. 2 is an enlarged perspective view of the periphery of a projection of a bump part of the present embodiment. Fig. 3 is a cross-sectional view taken along a line AA in Fig. 2. [Way to carry out the invention]

[0008] In the following, an embodiment of the invention will be described in detail with reference to the accompanying drawings.

[0009] Fig. 1 is a front view illustrating a windshield molding structure according to the embodiment of the invention. In the following description, an arrow F indicates the front direction in the longitudinal direction of the vehicle, an arrow O indicates the outer side direction in the vehicle width direction, and an arrow U indicates the upper side direction in the vertical direction of the vehicle. Furthermore, the terms "right" and "left" in the description of the present embodiment correspond to the right and left sides, respectively, when viewing the front of the vehicle from inside the passenger compartment.

[0010] In Fig. 1, a windshield molding 1 of the embodiment is installed in a peripheral edge portion of a windshield 2 of a vehicle, such as an automobile. The windshield 2 is fixed to a windshield opening edge portion (not shown) located in a vehicle front part using an adhesive or the like. The windshield opening edge portion is formed by right and left front pillars (A-pillars), a roof skin, and a garnish (not shown). A bonding surface of the windshield 2 with respect to the windshield opening edge portion is provided with a black ceramic portion 2A. The black ceramic portion 2A is provided to protect the adhesive applied to the bonding surface from ultraviolet rays and to conceal the adhesive from being seen from outside the vehicle.

[0011] The windshield molding 1 includes a right and a left pair of vertical moldings 10 installed in side edge portions in the vehicle width direction of the windshield 2, and a side molding element 20 installed in a side edge portion on the upper side of the vehicle. The side molding element 20 extends in the vehicle width direction and is connected at both end portions in the vehicle width direction to upper end portions of the right and left vertical moldings 10. The right and left vertical moldings 10 have symmetrical structures, and Fig. 1 illustrates only the vertical molding 10 on the right side. The structure of the right vertical molding 10 will be described below, while the structure of the left vertical molding 10 will be omitted. Note that in the present embodiment, the right and left vertical moldings 10 correspond to one "molding" according to the invention.

[0012] The vertical molding 10 is a component manufactured, for example, by resin injection molding. The vertical molding 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 2. That is, the vertical molding 10 of this embodiment is an elongated injection molding component extending along the side edge portion in the vehicle width direction of the windshield 2.

[0013] The vertical molding 10 includes an unevenness part (hereinafter simply referred to as "unevenness") 13 in which projections and recesses are alternately formed along the side edge in the vehicle width direction of the windshield 2 in a lower portion of a surface 10A on the vehicle front side. The unevenness 13 of this embodiment includes a plurality of projections 131 projecting toward the vehicle front side from the surface 10A, the projections 131 being arranged at intervals along the side edge in the vehicle width direction of the windshield 2. In this embodiment, the unevenness 13 is not located in an upper portion of the surface 10A on the vehicle front side. The following describes a specific structure of the vertical molding 10 with reference to Fig. 2 and Fig. 3 described in detail.

[0014] Fig. Fig. 2 is a perspective view showing an enlarged state of the periphery of the projection 131 (which is indicated by the alternating long and short lines in Fig. 2 surrounded zone) of the unevenness 13 of this embodiment. Fig. 3 is a cross-sectional view along the line AA in Fig. 2.

[0015] As in the Fig. 2 and Fig. 3, the vertical molding 10 of the present embodiment is generally divided into a base part 11 fixed to the side edge part of the windshield 2 in the vehicle width direction, and a lip part 12 extending outward in the vehicle width direction (the opposite side of the windshield 2) from the base part 11.

[0016] The base part 11 has a substantially U-shaped cross-sectional area open to the inside in the vehicle width direction, and the vertical molding 10 is mounted on the windshield 2 such that the side edge portion in the vehicle width direction of the windshield 2 is located inside the substantially U-shape ( Fig. 3). Of an inner wall of the substantially U-shaped base part 11, the total width in the vehicle width direction of a front wall part located on the vehicle front side is formed wider than the total width of a rear wall part located on the vehicle rear side. That is, when the base part 11 of the vertical molding is attached to the vehicle width direction side edge part of the windshield 2, a front part 11A located on the vehicle front side (outside the vehicle) of the windshield 2 is formed to extend further toward the center in the vehicle width direction of the windshield 2 than a rear part 11B located on the vehicle rear side (inside the vehicle). The base part 11 of the vertical molding 10 and the vehicle width direction side edge part of the windshield 2 are bonded with an adhesive 3.

[0017] The lip part 12 includes an outer lip 12A and an inner lip 12B. The outer lip 12A extends, while curving toward the vehicle rear side toward the outer side in the vehicle width direction from a front part on the outer side in the vehicle width direction of the base part 11. The inner lip 12B extends, while curving toward the vehicle front side toward the outer side in the vehicle width direction from a rear part on the outer side in the vehicle width direction of the base part 11. The lip part 12 is shaped such that, when the base part 11 is attached to the side edge portion in the vehicle width direction of the windshield 2, respective end portions of the outer lip 12A and the inner lip 12B come into contact with the front pillar (not shown).

[0018] The above-mentioned surface 10A of the vertical molding 10 corresponds to a surface on the vehicle front side of the base part 11 and a surface on the vehicle front side of the outer lip 12A. In the present embodiment, the unevenness 13 is integrally formed with the lower part of the surface 10A on the vehicle front side of the base part 11. This means that the vertical molding 10 of this embodiment is a component in which the base part 11, the lip part 12, and the unevenness 13 are integrally formed by resin injection molding.

[0019] The unevenness 13 has an uneven shape that is regularly formed on the surface 10A of the base part 11. The unevenness has a predetermined shape, size, and pitch. In the present embodiment, the plurality of projections 131 that protrude from the surface 10A of the base part 11 and the surface 10A toward the vehicle front side form an uneven shape. The plurality of projections 131 are arranged at generally regular intervals with a pitch P of approximately 50 mm and extend in the longitudinal direction of the vertical molding 10 ( Fig. 1).

[0020] In the front view, each projection 131 has a shape in which a width W1 in the vertical vehicle direction is the widest in an inner region in the vehicle width direction, and the width W toward the vehicle outer side in the vehicle width direction ( Fig. 2) gradually decreases. The maximum width W1 in the vertical direction of the vehicle for each projection 131 is, for example, approximately 4 mm in the preferred embodiment. Furthermore, the total width W2 in the vehicle width direction of each projection 131 is equal to or greater than the maximum width W1 in the vertical vehicle direction, and is preferably, for example, approximately 6 mm ( Fig. 3).

[0021] In addition, each projection 131 has a shape in which a height H from the surface 10A of the vertical molding 10 is maximum at an inner region in the vehicle width direction. The height H gradually decreases toward the outer side in the vehicle width direction ( Fig. 3). The maximum height H of the protrusion 131 is approximately 2 mm. However, it should be noted that in each protrusion 131, the maximum width W1 in the vehicle vertical direction, the total width W2 in the vehicle width direction, and the maximum height H are not limited to the above example; the values ​​can be appropriately adjusted according to the shapes of the windshield 2, the side panel of the vehicle, and the like.

[0022] Specifically, each projection 131 of this embodiment includes a front wall surface 131A on the vehicle front side of the surface 10A on the vehicle front side of the base part 11 and is formed in a front view similar to a teardrop, with a side wall surface 131B extending toward the surface 10A of the base part 11 from the peripheral edge of the front wall surface 131A ( Fig. 2 and Fig. 3).

[0023] The front wall surface 131A is shaped such that the apex of the teardrop shape is located on the outer side in the vehicle width direction, while a curved portion opposite the apex is located on the inner side in the vehicle width direction (the center in the vehicle width direction of the windshield 2). Furthermore, the front wall surface 131A has the part on the inner side in the vehicle width direction farthest from the surface 10A of the base part 11 and is shaped such that it gradually approaches the surface 10A of the base part 11 toward the outer side in the vehicle width direction.

[0024] Of the side wall surface 131B, a portion on the inner side in the vehicle width direction corresponding to the curved portion of the front wall surface 131A is a curved surface opposite to the center in the vehicle width direction of the windshield 2. The height (length in the longitudinal direction of the vehicle) of the side wall surface 131B has a maximum at the curved surface of the portion on the inner side in the vehicle width direction and gradually decreases toward the outer side in the vehicle width direction.

[0025] Each projection 131 having the shape described above is located on the outer side in the vehicle width direction of a round part 10B on the inner side in the vehicle width direction of the molded part 10 (base part 11) ( Fig. 2 and Fig.3). The round part 10B is formed by rounding a corner portion connecting the surface 10A of the vertical molding 10 (base part 11) to a vertical wall surface 10C on the inner side in the vehicle width direction. The vertical wall surface 10C of the vertical molding 10 is an end surface on the inner side in the vehicle width direction of the front part 11A of the base part 11, and is a surface facing the center in the vehicle width direction of the windshield 2.

[0026] The following describes the effects of the windshield profile strip 1 of this embodiment.

[0027] In a vehicle on which the windshield molding 1 having the above-described structure is installed in the peripheral edge portion of the windshield 2, during driving, running wind flows toward the outside in the vehicle width direction along the front surface (vehicle outer surface) of the windshield 2. The running wind flows over the right and left vertical moldings 10 of the windshield molding 1, which are located at the two side edge portions in the vehicle width direction of the windshield 2, and flows along the right and left sides of the vehicle to the rear of the vehicle.

[0028] At this time, turbulence is generated around the unevenness 13 of the vertical molding 10 due to the obstruction of the airflow by the projections 131. Specifically, the airflow reaching the vicinity of the side edge portion in the vehicle width direction of the windshield 2 flows toward the unevenness 13 along the vertical wall surface 10C and the round part 10B of the molding 10. Then, of the airflow reaching the unevenness 13, the portion passing through a portion in which the projection 131 is not formed (the recess of the unevenness) flows to the outside in the vehicle width direction along the surface 10A of the vertical molding 10. On the other hand, the airflow passing through a portion in which the projection 131 is formed (the projection of the unevenness) flows along the side wall surface 131B and the front wall surface 131A of the projection 131, and the flow of The flow of wind along the surface 10A of the vertical molded part 10 is interrupted.For this reason, the wind passing through the vicinity of bump 13 becomes turbulent.

[0029] The turbulent airflow flows along the outer lip 12A of the vertical molding 10 and then flows toward the rear of the vehicle along the front pillar and the side of the vehicle body. As a result, the airflow flowing along the side surface of the vehicle body becomes turbulent, making boundary layer separation less likely, thus reducing the likelihood of narrow-band wind noise.

[0030] As explained above, in the windshield molding 1 of this embodiment, the vertical molding 10 installed in the side edge region in the vehicle width direction of the windshield 2 includes the unevenness 13 in the lower portion of the surface 10A on the vehicle front side, so that the occurrence of narrow-band wind noise around the windshield 2 can be reduced. Although such unevenness 13 may impair aerodynamic performance, since the unevenness 13 is located only in the lower portion of the surface 10A of the vertical molding 10, which has the effect of reducing narrow-band wind noise, deterioration of aerodynamic performance is minimized.For this reason, the windshield molding 1 of this embodiment makes it possible to reduce the occurrence of narrow-band wind noise while dampening the impact on aerodynamic performance. A vehicle to which such a windshield molding 1 is attached can be expected to improve the quality of aerodynamic noise and improve fuel efficiency (fuel consumption) or energy efficiency (power consumption).

[0031] Furthermore, in the windshield molding 1 of this embodiment, each protrusion 131 of the unevenness 13 has a shape in the front view in which the width W1 in the vertical direction of the vehicle is largest in the inner region in the vehicle width direction and the width W1 narrows toward the outer region in the vehicle width direction. With such a shape of each protrusion 131, the drag of each protrusion 131 is reduced, and the influence on aerodynamic performance can be further suppressed. In particular, when each protrusion 131 has a teardrop shape in the front view, the drag of each protrusion 131 is further reduced, so that the influence on aerodynamic performance can be effectively suppressed.

[0032] Furthermore, in the windshield molding 1 of this embodiment, each protrusion 131 of the unevenness 13 has a shape in which the height H relative to the surface 10A of the vertical molding 10 is maximum at the inner portion in the vehicle width direction, while the height H gradually decreases toward the outer portion in the vehicle width direction. By shaping each protrusion 131 in this way, the air resistance of each protrusion 131 is further reduced, and the influence on aerodynamic performance can be more effectively dampened.

[0033] Furthermore, in the windshield molding 1 of this embodiment, each projection 131 of the unevenness 13 is located on the outer side in the vehicle width direction of the round part 10B of the vertical molding 10. By disposing each projection 131 in this way, the occurrence of narrow-band wind noise can be effectively reduced because turbulence can be reliably induced in the running wind passing through the unevenness 13.

[0034] While the embodiment of the invention has been explained above, the invention is not limited to the above embodiment, but various variations and modifications are possible within the scope of the technical idea of ​​the present invention. While the above embodiment describes an example in which the unevenness 13 is formed in the lower part of the surface 10A of the vertical molding 10 (base part 11), the unevenness 13 may also be formed in a region including an upper part above the center in the vertical direction. That is, it is sufficient if the unevenness according to the invention is formed in at least the lower part of the surface on the vehicle front side of the molding.

[0035] While the above embodiment describes an example in which the unevenness 13 includes a plurality of projections 131 formed in a teardrop shape, and the projections 131 are arranged at a predetermined pitch P, the unevenness of this part is not limited to the above example. Instead of the projections 131, grooves extending in the vehicle width direction may also be formed at intervals along the vehicle width direction side edge of the windshield to cause turbulence in the traveling wind.

[0036] While the above embodiment describes an example of the vertical molding 10 in which the base portion 11, the lip portion 12, and the bump 13 are integrally formed by resin injection molding, the vertical molding can also be manufactured by combining two or more types of elements made of different materials and / or using different molding methods. Furthermore, the shape of each base portion 11 and lip portion 12 can be appropriately modified depending on the shape of the windshield or front pillar. [List of reference symbols] 1 windshield profile strip 2 Windshield 10 Vertical molding (molded part) 10A surface 10B round part 10C Vertical wall area 11 Base part 11A front part 11B back 12 Lip part 12A outer lip 12B inner lip 13 Unevenness part 131 lead 131A front wall surface 131B side wall area 20 side form element H Height P Center distance W1 Width in vertical vehicle direction W2 Total width in vehicle width direction QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] JP 2014-184843 A

[0003]

Claims

[1] A windshield molding structure comprising a molding installed in a side edge part, as seen in the vehicle width direction, of a windshield mounted in a vehicle front part, characterized by that the molded part includes an unevenness part in which projections and recesses are alternately formed along a side edge in the vehicle width direction of the windshield in at least a lower part of a surface of a vehicle front side. [2] A windshield molding structure according to claim 1, wherein the unevenness part includes a plurality of projections projecting from the surface toward the vehicle front side, the projections being arranged at intervals along the side edge in the vehicle width direction of the windshield, and in a front view, each of the projections has a shape in which a width in the vertical direction of the vehicle is maximized at an inner part in the vehicle width direction and the width gradually decreases toward the outer side in the vehicle width direction. [3] The windshield molding structure according to claim 2, wherein each of the projections has a shape in which a height with respect to the surface is maximized at an inner part in the vehicle width direction and the height gradually decreases toward the outer side in the vehicle width direction. [4] A windshield profile strip structure according to claim 2, wherein the molded part has a round part with a rounded corner and connects the surface to a vertical wall surface on the inside in the vehicle width direction, and each of the projections is located on the outer side in the vehicle width direction with respect to the round part.

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