JP2013103532A - Mounting structure of plate member, and vehicle including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a plate member, configured to improve adhesion between the plate member and a mounting member having different linear expansion coefficients in a simple method, without increasing the number of components, and to provide a vehicle including the same.SOLUTION: The plate member 1 is mounted on the mounting member 2 through endless adhesive 3 arranged at a periphery 12 of the plate member. The mounting member 2 and the plate member 1 have different linear expansion coefficients. The endless adhesive 3 includes rippling parts 31-34 formed on at least portions R1-R4 thereof. In addition, the adhesive 3 on the rippling parts 31-34 ripples in a direction along a mounting surface 22a of the mounting member 2.

Description

  The present invention relates to a plate-shaped member mounting structure and a vehicle equipped with the mounting structure.

  Conventionally, when members having different linear expansion coefficients are bonded and fixed via an adhesive, the generation of internal stress of the adhesive due to the difference in the linear expansion coefficient is known.

  For example, when glass is attached to the window of a vehicle such as an automobile or train via an adhesive, there is a difference in linear expansion coefficient between the glass and the body mounting member. When the temperature of the mounting member or the like rises, a difference in expansion occurs between the glass and the body mounting member, and internal stress is generated in the adhesive between the glass and the body mounting member.

  By the way, in recent years, in the automobile industry, hybrid vehicles and electric vehicles have been attracting attention as vehicles that can reduce the environmental impact load, and development aimed at further miniaturization, weight reduction, and higher performance has been developed by various automobile manufacturers and automobiles. It is being promoted every day by related manufacturers. One of the development techniques is to apply organic glass mainly composed of a resin material such as polycarbonate (PC) to the window portion of the vehicle instead of inorganic glass mainly composed of silicic acid.

  According to the technique described above, the weight of the entire vehicle can be reduced by applying organic glass, which is much lighter than inorganic glass, to the window portion of the vehicle. On the other hand, for example, the linear expansion coefficient of iron constituting the mounting member of the vehicle body is about 12 ppm / K, and the linear expansion coefficient of polycarbonate resin and acrylic resin is about 68 ppm / K, so inorganic (hard) glass (linear expansion) Compared with the case where a coefficient of 9.0 to 9.5 ppm / K) is applied to the window portion of the vehicle, internal stress generated in the adhesive between the glass and the body mounting member may be increased.

  FIG. 5 shows a conventional plate-shaped window member (glass) mounting structure, and FIG. 5 (a) is a perspective view schematically showing a tailgate having the mounting structure. (B) is an A5-A5 arrow view of FIG. 5 (a), and FIG. 5 (c) is an A5-A5 arrow view of FIG. 5 (a) when the window member and the mounting member are thermally deformed. Is.

  As shown in FIGS. 5A and 5B, when the window member A is attached to the tailgate T, the mounting member (flange portion) B and the plate around the window opening S provided in the tailgate T A peripheral edge E of the window region D of the shaped window member A is bonded and fixed via an adhesive C. Here, when the amount of thermal deformation of the window plate A and the mounting member B is small, no large shear stress is generated in the adhesive C interposed between the peripheral edge E of the window member A and the mounting member B.

  However, as shown in FIG. 5C, when the amount of thermal deformation of the window plate A and the mounting member B increases, the expansion amount of the window member A is generally larger than the expansion amount of the mounting member B. A relative displacement occurs between the peripheral edge E of the member A and the mounting member B. Thereby, a shearing stress may generate | occur | produce in the adhesive agent C between the peripheral edge E of the member A for windows, and the attachment member B. FIG. In particular, when the size of the plate member A is large so as to correspond to a window area having a large area as shown in the drawing, the positional deviation between the peripheral edge E of the window member A and the mounting member B becomes relatively large. Therefore, there is a problem that the shear stress of the adhesive C between the peripheral edge E of the window member A and the mounting member B is increased.

  Resin aimed at preventing the peeling of the adhesive between the curved glass and the resin material when the curved glass and the resin material having different linear expansion coefficients are bonded and fixed to each other through the adhesive. A material adhering method is disclosed in Patent Document 1.

Japanese Patent Laid-Open No. 7-126046

  According to the bonding method disclosed in Patent Document 1, spacers having a predetermined thickness and elasticity are arranged around any two sides or one side adjacent to the two opposite sides. By filling the adhesive in the installed state, it is possible to absorb thermal stress such as shear stress based on the difference in coefficient of linear expansion between the curved glass and the resin material with this adhesive, and between the curved glass and the resin material. It is possible to prevent the adhesive from peeling to a certain extent.

  However, in the bonding method disclosed in Patent Document 1, it is necessary to dispose a separate spacer around the bonding portion, and there is a problem that the number of parts increases and the manufacturing cost increases.

  The present invention has been made in view of the above-described problems, and has a plate-like member mounting structure capable of increasing the adhesive force between members having different linear expansion coefficients by a simple method without increasing the number of parts. An object of the present invention is to provide a vehicle provided with this mounting structure.

  In order to achieve the above object, the plate member mounting structure of the present invention is attached to the mounting member via an endless adhesive disposed on the periphery of the plate member, The plate-like member mounting structure is different in the linear expansion coefficient of the plate-like member, and the endless adhesive has a corrugated portion at least in part.

  According to the above-described embodiment, the adhesive can be disposed so as not to be orthogonal to the direction in which the plate-shaped member expands by having the corrugated portion at least in a part of the endless adhesive. Compared to the case where the adhesive is disposed in a direction orthogonal to the direction in which the member expands, the application width of the adhesive in the direction in which the plate-shaped member expands can be ensured. Thereby, even if it is a case where the linear expansion coefficients of a plate-shaped member and an attachment member differ, the adhesive force of a plate-shaped member and an attachment member can be raised, for example, without using a separate spacer.

  The corrugated portion is at least one of a sawtooth shape and a smooth curved shape. For example, when the waved portion has a smooth curved shape, the adhesive can be smoothly and continuously disposed at the periphery of the plate-like member, and the stress concentration of the adhesive can be suppressed.

  Further, the corrugated part may be provided only at a location where the expansion direction of the plate-shaped member and the arrangement direction of the adhesive may be orthogonal, for example, or the corrugated part may be provided on all of the endless adhesive. Good. When the corrugated portion is provided only at a location where the expansion direction of the plate-like member and the arrangement direction of the adhesive can be orthogonal to each other, and the other portions are provided with the adhesive in a substantially straight line as usual, While increasing the adhesive strength of the mounting member, the amount of adhesive used can be suppressed to prevent an increase in manufacturing cost. Moreover, when the said corrugated part is provided in the whole endless adhesive agent, the adhesive force of a plate-shaped member and an attachment member can be heightened effectively over the whole periphery of a plate-shaped member.

  Here, the plate-like member and the attachment member may be made of the same material or different materials. For example, when the plate-shaped member is made of a resin material and the mounting member is made of a metal material, the difference between the plate-like member and the mounting member is relatively large, but the above-described configuration is applied. Thus, the adhesive force between the plate member and the mounting member can be effectively increased.

  The attachment member may have an opening, and the plate-like member may be attached to the periphery of the opening via an endless adhesive. When the mounting member has an opening, the amount of thermal deformation of the mounting member is relatively small, and the plate member receives a relatively large amount of heat from the mounting member side through the opening. Since the amount of thermal deformation of the member becomes relatively large, it is conceivable that the displacement between the plate-like member and the mounting member becomes large. However, even in such a case, as described above, at least a part of the endless adhesive has a corrugated portion, and the adhesive is disposed so as not to be orthogonal to the direction in which the plate-like member expands. Thereby, the adhesive force of a plate-shaped member and an attachment member can be heightened effectively.

  Although the mounting structure described above can be applied to any part of the vehicle, the plate-like member may be a window member, and the opening of the mounting member may constitute a window portion. That is, the plate-like member may be an inorganic glass mainly composed of silicic acid, or an organic glass mainly composed of a resin material such as a polycarbonate (PC) resin or an acrylic resin. At that time, as the adhesive, urethane, epoxy, acrylic, and silicone adhesives that can be normally used can be applied, but when using a polycarbonate resin or acrylic resin plate as a window member, In order to secure the adhesive force between the organic paint layer provided on the window member and the metal body mounting member, it is preferable to use a urethane-based adhesive.

  As can be understood from the above description, according to the plate member mounting structure of the present invention, the adhesive force between members having different linear expansion coefficients can be increased by a simple method without increasing the number of parts. Therefore, the attachment structure of the plate-shaped member which was lightweight and excellent in durability can be provided.

It is a figure which shows typically Embodiment 1 of the attachment structure of the plate-shaped member which concerns on this invention, (a) is the top view, (b) is A1-A1 arrow line view of Fig.1 (a). . It is a longitudinal cross-sectional view of the attachment structure of the plate member shown in FIG. 1, (a) is an A2-A2 arrow view of the attachment structure of the plate member shown in FIG. 1 (a), and (b) is FIG. It is an A3-A3 arrow line view of the attachment structure of the plate-shaped member shown to a). It is a top view which shows typically Embodiment 2 of the attachment structure of the plate-shaped member which concerns on this invention. It is a top view which shows typically Embodiment 3 of the attachment structure of the plate-shaped member which concerns on this invention. It is the figure which showed the attachment structure of the conventional plate-shaped member for windows, (a) is a perspective view which shows typically the tailgate of the vehicle provided with the attachment structure of the plate-shaped member, (b) is FIG. (A) A5-A5 arrow directional view, (c) is the A5-A5 arrow directional view of FIG. 5 (a) when the member for windows and the attachment member are thermally deformed.

  Embodiments 1 to 3 of the present invention will be described below with reference to the drawings.

[Embodiment 1]
FIG. 1 is a diagram schematically showing Embodiment 1 of a plate member mounting structure according to the present invention, FIG. 1 (a) is a plan view thereof, and FIG. 1 (b) is a diagram of FIG. 1 (a). It is an A1-A1 arrow directional view. 2 is a longitudinal sectional view of the plate-shaped member mounting structure shown in FIG. 1, and FIG. 2 (a) is a view taken along the line A2-A2 of the plate-shaped member mounting structure shown in FIG. 1 (a). 2 (b) is a view taken along the line A3-A3 of the plate-like member mounting structure shown in FIG. 1 (a).

  As shown in FIG. 1A, the mounting structure 10 for the plate-like member 1 is generally composed of a plate-like member 1 and an attachment member 2 having different linear expansion coefficients. Is attached via an endless adhesive 3 disposed on the peripheral edge 12 of the predetermined region 11 in the center. Here, the attachment member 2 has an opening 21, and a flange portion 22 is provided around the opening 21, and the flange portion 22 and the peripheral edge 12 of the plate-like member 1 are bonded via an adhesive 3. Thus, the plate-like member 1 is attached to the attachment member 2.

  As shown in FIG. 1B, the flange portion 22 of the attachment member 2 has a shape that is recessed from the surface 2 a of the attachment member 2, and when the plate-like member 1 is attached to the attachment member 2. The surface 1a of the plate-like member 1 and the surface 2a of the mounting member 2 are designed to have a substantially uniform height.

  Although the mounting structure 10 for the plate-like member 1 can be applied to any part of the vehicle, for example, when the plate-like member 1 is a window member (glass), the attachment member 2 is used for a window. An attachment member for attaching the member to the vehicle body is constituted, and the predetermined region 11 of the plate-like member 1 and the opening 21 of the attachment member 2 constitute a window portion of the vehicle. And when the attachment structure 10 of the plate-shaped member 1 is applied to the window part of a vehicle, the plate-shaped member 1 and the attachment member 2 will thermally expand by the irradiation heat of sunlight, for example.

  For example, when the attachment structure 10 of the plate-like member 1 is applied to a cover of an internal combustion engine, the plate-like member 1 and the attachment member 2 are thermally expanded by heat released from the internal combustion engine.

  Thus, when the plate-like member 1 and the attachment member 2 are thermally expanded, the linear expansion coefficients of the plate-like member 1 and the attachment member 2 are different as described above. A difference in expansion amount occurs, and shear stress is generated in the adhesive 3 between the peripheral edge 12 of the plate-like member 1 and the flange portion 22 of the mounting member 2.

  Therefore, in the mounting structure 10 of the first embodiment, the endless adhesive 3 that bonds the peripheral edge 12 of the plate-like member 1 and the flange portion 22 of the mounting member 2 has at least a part of the corrugated portions 31 to 34. The adhesive 3 of the corrugated portions 31 to 34 is corrugated in a direction along the attachment surface 22 a of the flange portion 22 of the attachment member 2.

  More specifically, the endless adhesive 3 is applied to the regions R1 to R4 where the expansion direction X1 of the plate-like member 1 and the application direction of the adhesive 3 can be orthogonal when the adhesive 3 is applied substantially linearly. Sawtooth-shaped corrugated portions 31 to 34 are provided, and the adhesive 3 is arranged in a substantially straight line in the other regions as in the conventional structure. That is, as illustrated, when the plate-like member 1 has a substantially rectangular shape in plan view, the adhesive 3 has corrugated portions 31 to 34 in the central regions R1 to R4 of each side of the plate-like member 1. In the region near each vertex of the plate-like member 1, the adhesive 3 is arranged substantially linearly.

  By setting it as such a structure, the adhesive agent 3 will be arrange | positioned in the direction not orthogonal to the direction which goes to the expansion direction X1 of the plate-shaped member 1 from the center part of the predetermined area | region 11 of the plate-shaped member 1, For example, in comparison with the application width W2 of the adhesive 3 in the region where the adhesive 3 is applied in a substantially linear shape as shown in FIG. 2B, as shown in FIG. 2A, in the regions R1 to R4 The width W1 of the adhesive 3 in the expansion direction X1 of the plate member 1 can be relatively increased.

  That is, as shown in FIG. 1A, the adhesive 3 is applied and disposed at the peripheral edge 12 of the plate-like member 1 at an angle θ with respect to the direction Y1 orthogonal to the expansion direction X1 of the plate-like member 1. Thus, adhesion of the adhesive 3 in the expansion direction X1 of the plate-like member 1 with respect to the application width W2 of the adhesive 3 in the region where the adhesive 3 is applied in a substantially linear shape as shown in FIG. Since the width W1 can be increased, the adhesive force between the plate-like member 1 and the mounting member 2 can be significantly increased, and the shear stress of the adhesive 3 can be effectively suppressed.

  In addition, the magnitude | size of area | region R1-R4 can be suitably selected according to the quantity of the adhesive agent 3 which can be used, and the magnitude | size of the shear stress which generate | occur | produces in the adhesive agent 3.

  In the illustrated example, the predetermined region 11 of the plate-like member 1 is arranged at the approximate center of the plate-like member 1. However, for example, the predetermined region 11 is arranged at a position deviated from the center, and the peripheral edge 12 of the predetermined region 11. And may be attached to an appropriate attachment member 2 via an adhesive 3.

[Embodiment 2]
FIG. 3 is a plan view schematically showing Embodiment 2 of the plate member mounting structure according to the present invention. The mounting structure 10A of the second embodiment is different from the mounting structure 10 of the first embodiment in that the adhesive interposed between the plate-shaped member and the mounting member is arranged in a smooth curved shape. The other configurations are almost the same. Therefore, about the structure similar to the attachment structure 10 of Embodiment 1, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  The attachment structure 10A for the plate-like member 1A shown in FIG. 3 is in contrast to the adhesive 3 of the corrugated portions 31 to 34 arranged in a sawtooth shape in the regions R1 to R4 of the attachment structure 10 for the plate-like member 1 shown in FIG. Thus, the adhesive 3A of the corrugated portions 31A to 34A in the regions R1A to R4A is arranged in a curved shape. That is, the mounting structure 10A for the plate-like member 1A includes an adhesive 3A for bonding the peripheral edge 12A of the predetermined region 11A of the plate-like member 1A and the flange portion 22A of the mounting member 2A, and the peripheral edge of the predetermined region 11A of the plate-like member 1A. It is arranged so as to be smoothly and continuously on the entire circumference of 12A.

  Thus, by making the adhesive 3A of the waved portions 31A to 34A into a smooth curved shape, the regions R1A to R4A and the regions R1A to R4A of the peripheral edge 12A of the predetermined region 11A of the plate-like member 1A are connected to the other regions. The stress concentration of the adhesive 3A at the site 3Aa to be performed can be suppressed.

  In the second embodiment, as in the first embodiment, the endless adhesive 3A is orthogonal to the expansion direction X1A of the plate member 1A in the regions R1A to R4A of the peripheral edge 12A of the plate member 1A. By being applied and arranged so as to be inclined by an angle θA with respect to the direction Y1A, the adhesive width of the adhesive 3A in the expansion direction X1A of the plate-like member 1A can be relatively increased, and the plate-like member 1A and the mounting member 2A The adhesive force can be increased, and the shear stress of the adhesive 3A disposed between the peripheral edge 12A of the plate-like member 1A and the flange portion 22A of the mounting member 2A can be effectively suppressed.

[Embodiment 3]
FIG. 4 is a plan view schematically showing Embodiment 3 of the plate member mounting structure according to the present invention. The mounting structure 10B of the third embodiment is different from the mounting structure 10 of the first embodiment in that all of the adhesive disposed on the periphery of the predetermined region of the plate-like member is a corrugated portion. Other configurations are almost the same. Therefore, about the structure similar to the attachment structure 10 of Embodiment 1, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  As shown in FIG. 4, the linear expansion of the plate-like member 1B in the expansion direction X1B toward the vicinity of the apex of the plate-like member 1B having a substantially rectangular shape in plan view is a direction substantially parallel to each side of the plate-like member 1B. Can be decomposed into linear expansions in the expansion directions X1Ba and X1Bb.

  That is, in regions other than the regions R1B to R4B near the center of each side of the plate member 1B, the expansion amount of the plate member 1B in the direction substantially parallel to each side of the plate member 1B is the expansion amount in the regions R1B to R4B. However, when the adhesive 3B is applied substantially linearly at the peripheral edge 12B of the plate-like member 1B, the plate-like member 3B still expands in a direction orthogonal to the application direction of the adhesive 3B. Become.

  Therefore, in the mounting structure 10B of the third embodiment, all of the adhesive 3B disposed on the peripheral edge 12B of the predetermined region 11B of the plate-like member 1B is constituted by a sawtooth waved portion.

  By adopting such a configuration, the amount of adhesive 3B used is increased as compared with the mounting structure 10 of Embodiment 1, but the endless adhesive 3B is expanded in the plate member 1B in the regions R1B to R4B. In addition to being able to be applied and disposed at an angle θB with respect to the direction X1B, the adhesive force between the plate-like member 1B and the mounting member 2B can be increased in regions other than the regions R1B to R4B. The shear stress of the adhesive 3B between the plate-like member 1B and the attachment member 2B can be effectively suppressed over the entire periphery 12B of the predetermined region 11B.

  In the mounting structure 10B of the third embodiment, all of the adhesive 3B disposed on the peripheral edge 12B of the predetermined region 11B of the plate-like member 1B is a sawtooth waved portion, but all of the adhesive 3B is smooth. A curved corrugated portion may be used, or a sawtooth or smooth curved corrugated portion may be used in appropriate combination.

  Thus, the plate-shaped member mounting structure according to the present invention allows the adhesive to be applied from the center of the predetermined region of the plate-shaped member to the plate-shaped member even when the plate-shaped member and the mounting member have different linear expansion coefficients. By arranging in a direction that is not orthogonal to the direction toward the expansion direction, it is possible to secure the application width (adhesion width) of the adhesive with respect to the expansion direction of the plate-like member, and the adhesive force between the plate-like member and the mounting member Can be effectively increased. For this reason, the plate-shaped member mounting structure according to the present invention is suitable for recent hybrid vehicles and electric vehicles that require high durability and light weight.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. They are also included in the present invention.

DESCRIPTION OF SYMBOLS 1 ... Plate-shaped member, 2 ... Mounting member, 3 ... Adhesive, 10 ... Mounting structure, 11 ... Predetermined area, 12 ... Periphery, 21 ... Opening, 22 ... Flange part, 22a ... Mounting surface, 31-34 ... Wave part , R1 to R4: Wavy region, W1, W2: Adhesive application width (adhesion width), X1: Expansion direction of plate member, Y1: Direction orthogonal to expansion direction of plate member

Claims (8)

A plate-like member mounting structure in which the plate-like member is attached to the attachment member via an endless adhesive disposed on the periphery thereof, and the linear expansion coefficients of the attachment member and the plate-like member are different. Because
The endless adhesive has a plate-like member mounting structure having a corrugated portion at least in part.   The plate-like member mounting structure according to claim 1, wherein the corrugated adhesive is corrugated in a direction along the mounting surface of the mounting member.   The plate-shaped member mounting structure according to claim 1, wherein the corrugated portion is at least one of a sawtooth shape and a smooth curved shape.   The plate-like member mounting structure according to any one of claims 1 to 3, wherein the endless adhesive is entirely made of the wavy portion.   The plate-shaped member mounting structure according to any one of claims 1 to 4, wherein the plate-shaped member is made of a resin material.   The plate-like member according to any one of claims 1 to 5, wherein the attachment member has an opening, and the plate-like member is attached to the periphery of the opening via an endless adhesive. Mounting structure.   The plate-shaped member mounting structure according to claim 6, wherein the plate-shaped member is a window member.   A vehicle comprising the plate member mounting structure according to any one of claims 1 to 7.

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