Vehicle Panel

Abstract

To provide a vehicle panel which can suppress sagging of a back door panel due to heat creep displacement.SOLUTION: A vehicle panel 1 comprises: a body panel 2; a back door panel 3 attached to the body panel 2; and an elastic member 5 which is arranged between the body panel 2 and the back door panel 3. An upper end part of the back door panel is connected to the body panel 2 so that the back door panel 3 is suspended from an upper side of a vehicle to a lower side of the vehicle. The back door panel 3 includes an inner panel 31 and an outer panel 32. The inner panel 31 is made of resin material. The inner panel 31 includes an opening 30 into which a window member is fitted. The elastic member 5 is arranged at a height equal to or higher than half height of the opening 30 in a vehicle height direction at a portion where the body panel 2 faces the back door panel 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vehicle panel. [Background technology]

[0002] The vehicle panels include, for example, a body panel, and a side door panel, a hood panel, a roof panel, and a back door panel that are attached to the body panel.

[0003] The back door panel includes, for example, an inner panel disposed on the inside of the vehicle and an outer panel disposed on the outside of the vehicle, and a reinforcing member is disposed between the inner panel and the outer panel.

[0004] More specifically, the following vehicle back door structure has been proposed. This vehicle back door structure includes a door outer panel and a door inner panel that constitute the vehicle back door. The vehicle back door structure also includes a reinforcing member that is disposed between the door outer panel and the door inner panel and joined to the door outer panel. A window frame is formed in the vehicle back door. The vehicle back door is supported on the vehicle body via a door hinge on the upper side of the window frame. The reinforcing member has a predetermined dimension and is disposed at a predetermined position between two corners of the lower end of the window frame. The reinforcing member ensures the rigidity of the door outer panel and suppresses deformation of the door outer panel (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-169026 A Summary of the Invention [Problem to be solved by the invention]

[0006] On the other hand, there are cases where the door inner panel of the vehicle back door is a resin panel made of a resin material. In such a case, when the vehicle back door is supported (i.e., hung) on ​​the vehicle body via the door hinge on the upper side of the window frame as described above, the door inner panel (resin panel) may sag from a desired position due to thermal creep deformation.

[0007] The present invention provides a vehicle panel that can suppress sagging of a back door panel due to thermal creep deformation. [Means for solving the problem]

[0008] The present invention [1] includes a vehicle panel comprising: a body panel; a tailgate panel attached to the body panel; and an elastic member disposed between the body panel and the tailgate panel, wherein an upper end of the tailgate panel is connected to the body panel so that the tailgate panel is suspended from above the vehicle toward below the vehicle, the tailgate panel comprising an inner panel and an outer panel, the inner panel being made of a resin material and having an opening for fitting a window member, and the elastic member being disposed at a height that is more than half the height of the opening in the vehicle height direction in a portion where the body panel and the tailgate panel face each other. Effect of the Invention

[0009] According to the vehicle panel of the present invention, sagging of the back door panel due to thermal creep deformation can be suppressed.

[0010] More specifically, in the thermal creep deformation, the deformation stress of the inner panel of the back door panel is first concentrated at the upper corner (shoulder) of the opening for fitting the window member. Due to this stress concentration, the inner panel is deformed from the rear side of the vehicle toward the front side of the vehicle, as if it is being rolled from the outer side in the vehicle width direction toward the inner side in the vehicle width direction (rolling deformation). As a result, in conjunction with the above deformation (rolling deformation), the lower end of the inner panel in the vehicle height direction is deformed so as to extend from the upper side of the vehicle toward the lower side of the vehicle (drooping deformation).

[0011] In contrast, in the above vehicle panel, the elastic member is disposed between the body panel and the back door panel, and therefore, in the above vehicle panel, the elastic member can suppress the rolling deformation of the inner panel.

[0012] In particular, in the above vehicle panel, the elastic member is disposed in the portion where the body panel and the back door panel face each other, at a height that is equal to or greater than half the height of the opening in the vehicle height direction.

[0013] Therefore, for example, compared to a case where the elastic member is disposed at a position less than half the height of the opening in the vehicle height direction, the elastic member can better suppress the rolling deformation of the inner panel.

[0014] As a result, according to the above vehicle panel, it is possible to suppress the drooping deformation of the inner panel that accompanies the above-mentioned rolling deformation. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic diagram of a vehicle equipped with an embodiment of a vehicle panel of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of a back door panel of the vehicle panel shown in FIG. [Diagram 3] FIG. 3 is a side view of the back door panel of the vehicle panel shown in FIG. [Figure 4]Fig. 4A shows an embodiment in which the elastic member is disposed at a height of 1 / 2 the height of the opening in the vehicle height direction. Fig. 4B shows an embodiment in which the elastic member is disposed at a height of 3 / 4 the height of the opening in the vehicle height direction. Fig. 4C shows an embodiment in which the elastic member is disposed at the same height as the opening in the vehicle height direction. Fig. 4D shows an embodiment in which the elastic member is disposed at a height less than half the height of the opening in the vehicle height direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] 1. Overall structure of vehicle panel 1 is a schematic diagram of a vehicle equipped with an embodiment of a vehicle panel of the present invention. In FIG. 1, an automobile 100 as a vehicle is equipped with a vehicle panel 1.

[0017] The vehicle panel 1 includes a body panel 2, a back door panel 3 attached to the body panel 2, and an elastic member 5 (described later) disposed between the body panel 2 and the back door panel 3.

[0018] The body panel 2 is a panel member that forms the body frame of the automobile 100. The body panel 2 is made of, for example, a known metal material. A back door panel 3 is attached to the body panel 2. In addition, although not shown, a side door panel (not shown), a hood panel (not shown), and a roof panel (not shown) are attached to the body panel 2.

[0019] The back door panel 3 is a panel member that forms the back door of the automobile 100. The back door panel 3 is attached to the body panel 2, for example, via a hinge (not shown). More specifically, an upper end of the back door panel 3 is connected to the body panel 2 via a hinge (not shown) so that the back door panel 3 is suspended from the upper side of the vehicle toward the lower side of the vehicle. In this way, the back door panel 3 is connected to the body panel 2 so as to be able to be opened and closed.

[0020] More specifically, the back door panel 3 includes an inner panel 31 and an outer panel 32, as shown in FIG.

[0021] The inner panel 31 is an inner plate of the back door panel 3. The shape of the inner panel 31 is set appropriately according to the shape of the back door panel 3.

[0022] The inner panel 31 is, for example, a plate member having a desired uneven shape. More specifically, the inner panel 31 has an opening 30 for fitting a window member, as shown in the left drawing of Fig. 2A. The inner panel 31 also has a high mount stop lamp connection portion 33 for connecting a high mount stop lamp.

[0023] The inner panel 31 is made of a resin material. The method for forming the inner panel 31 from the resin material is not particularly limited, and a known resin molding method is adopted. Examples of molding methods include injection molding, compression molding, and inflation molding. Preferably, the inner panel 31 is obtained as an integrally molded product by injection molding. Examples of the resin material include polyolefin, polyamide, polyurethane, polyvinyl chloride, polycarbonate, polyether, polyester, and polyacrylic. These can be used alone or in combination of two or more. The resin material can contain additives. Examples of the additives include fillers (such as reinforcing fibers), colorants, heat stabilizers, light stabilizers, antioxidants, and mold release agents. These can be used alone or in combination of two or more. The content ratio of the additives is appropriately set according to the purpose and application.

[0024] The outer panel 32 is an outer plate of the back door panel 3. The shape of the outer panel 32 is set appropriately according to the shape of the back door panel 3.

[0025] More specifically, the outer panel 32 includes an under panel 35, a middle panel 36, and an upper panel 37. The under panel 35, the middle panel 36, and the upper panel 37 are assembled to one another, disposed so as to surround the opening 30, and bonded to the inner panel 31. As a result, the entire periphery of the peripheral end portion of the outer panel 32 is fixed to the inner panel 31.

[0026] The underpanel 35 is, for example, a plate member having a desired uneven shape. More specifically, the underpanel 35 has a license plate recess 34 for attaching a license plate. The underpanel 35 is attached to the middle panel 36. The underpanel 35 is also disposed below the opening 30, and is adhered to the inner panel 31 via an adhesive (not shown).

[0027] The middle panel 36 is, for example, a plate member having a desired uneven shape. More specifically, the middle panel 36 is formed as a pair of plate members. The pair of middle panels 36 are attached to the under panel 35 and the upper panel 37. The middle panels 36 are also disposed opposite each other on the left and right sides of the opening 30, and are bonded to the inner panel 31 via an adhesive (not shown).

[0028] The upper panel 37 is, for example, a plate member having a desired uneven shape. More specifically, the upper panel 37 is adjacent to a roof panel (not shown) and includes a spoiler disposed on the upper side of the vehicle. The upper panel 37 has a spoiler protrusion 38 protruding toward the rear side of the vehicle. The spoiler protrusion 38 is formed with a high mount stop lamp mounting portion 39 for mounting a high mount stop lamp and a wiring hole 40 for passing wiring of the high mount stop lamp. The upper panel 37 is assembled to the middle panel 36. The upper panel 37 is also disposed above the opening 30 and is bonded to the inner panel 31 via an adhesive (not shown).

[0029] The outer panel 32 (the under panel 35, the middle panel 36, and the upper panel 37) is formed from a resin material. The resin material is not particularly limited, and may be any known resin material. The method for forming the outer panel 32 from the resin material is not particularly limited, and a known resin molding method may be used.

[0030] 2. Deformation of the inner panel When heat is applied to the inner panel 31 of the back door panel 3, the inner panel 31 may undergo thermal creep deformation. For example, when the vehicle panel 1 equipped with the back door panel 3 is stored in a warehouse, heat is applied to the back door panel 3, and the inner panel 31 may undergo thermal creep deformation. The conditions (temperature and time) under which the inner panel 31 undergoes thermal creep deformation depend on the resin material constituting the inner panel 31.

[0031] The thermal creep deformation of the inner panel 31 will be described with reference to FIG.

[0032] More specifically, in thermal creep deformation, the deformation stress of the inner panel 31 of the back door panel 3 is first concentrated at the upper corner (shoulder) of the opening 30 (window frame) for fitting the window member (see F1 in Figure 3).

[0033] Due to this stress concentration, the inner panel 31 is deformed (rolling deformation) from the rear side to the front side of the vehicle, as if rolling from the outer side in the vehicle width direction to the inner side in the vehicle width direction (see F2 in FIG. 3).

[0034] As a result, in accordance with the above-mentioned deformation (rolling deformation), the lower end portion in the vehicle height direction of the inner panel 31 deforms so as to extend from the upper side of the vehicle toward the lower side of the vehicle (drooping deformation).

[0035] Therefore, the vehicle panel 1 includes an elastic member 5 for suppressing thermal creep deformation of the inner panel 31.

[0036] 3. Elastic material In Fig. 1, the elastic member 5 is a small piece made of an elastic material. Examples of the elastic material include thermoplastic elastomers, thermosetting elastomers, rubber, and springs. These can be used alone or in combination of two or more kinds. Preferred examples of the elastic material include thermoplastic elastomers and rubber.

[0037] The shape of the elastic member 5 is appropriately set according to the shape and size of the inner panel 31. Examples of the shape of the elastic member 5 include a cylindrical shape, an elliptical cylindrical shape, a polygonal cylindrical shape, a spherical shape, a hemispherical shape, and a block shape. In Fig. 1, the elastic member 5 is formed in a cylindrical shape extending along the vehicle front-rear direction.

[0038] The size of the elastic member 5 is appropriately set according to the shape and size of the inner panel 31. When the elastic member 5 is cylindrical, the diameter size of the bottom surface of the elastic member 5 is, for example, 1.0 cm to 4.0 cm. When the elastic member 5 is cylindrical, the height (column length) of the elastic member 5 is, for example, 0.5 cm to 4.0 cm.

[0039] The elastic member 5 is disposed between the body panel 2 and the inner panel 31 in a portion where the body panel 2 and the back door panel 3 face each other. In other words, the elastic member 5 is disposed on the vehicle rear side of the body panel 2 and on the vehicle front side of the inner panel 31 of the back door panel 3.

[0040] 1, the elastic member 5 is fixed to the body panel 2 at a portion where the body panel 2 and the back door panel 3 face each other. Although not shown, the elastic member 5 may be fixed to the back door panel 3 at a portion where the body panel 2 and the back door panel 3 face each other.

[0041] The number of elastic members 5 is not particularly limited and may be one or more. Preferably, the number of elastic members 5 is more than one, and more preferably, it is two. In FIG. 1, a pair (two) of elastic members 5 are provided for one back door panel 3.

[0042] 4, the pair (two) of elastic members 5 are disposed on both sides of the opening 30 of the back door panel 3 in the vehicle width direction, sandwiching the opening 30. Moreover, the pair (two) of elastic members 5 are preferably disposed so that they have the same height in the vehicle height direction.

[0043] More specifically, the elastic member 5 is disposed at a height equal to or greater than half the height of the opening 30 of the back door panel 3 in the vehicle height direction.

[0044] More specifically, the opening 30 of the back door panel 3 has a predetermined height L in the vehicle height direction (the vertical length of the opening 30 when the back door panel 3 is in a closed state). The height L of the opening 30 is measured, for example, at approximately the center of the opening 30 in the vehicle width direction. The height L of the opening 30 is, for example, 20 cm to 60 cm.

[0045] The elastic member 5 is positioned at a height that is half (L / 2) of the height L of the opening 30 in the vehicle height direction, or at a position that exceeds half (L / 2) of the height L of the opening 30 in the vehicle height direction in the vehicle height direction.

[0046] More specifically, for example, the elastic member 5 is disposed at a height of 1 / 2 the height L of the opening 30 in the vehicle height direction (see FIG. 4A). Also, for example, the elastic member 5 is disposed at a height of 3 / 4 the height L of the opening 30 in the vehicle height direction (see FIG. 4B). Also, for example, the elastic member 5 is disposed at the same height as the height L of the opening 30 in the vehicle height direction (see FIG. 4C).

[0047] Preferably, the elastic member 5 is disposed at a position exceeding, in the vehicle height direction, half (L / 2) of the height L of the opening 30 in the vehicle height direction (see Figs. 4B to 4C). More preferably, the elastic member 5 is disposed at the same height as the height L of the opening 30 in the vehicle height direction (see Fig. 4C).

[0048] Such an elastic member 5 may be used alone as a member (deformation suppressing member) for suppressing deformation of the inner panel. The elastic member may also be used, for example, as a buffer member (stopper rubber) for absorbing shock when the back door panel 3 is opened or closed. The elastic member 5 may also be used, for example, as a vibration-damping member for suppressing rattling of the back door when the vehicle is traveling.

[0049] 4. Effects According to the vehicle panel 1 described above, sagging of the back door panel 3 due to thermal creep deformation can be suppressed.

[0050] More specifically, as shown in Fig. 3, in the thermal creep deformation, the deformation stress of the inner panel 31 of the back door panel 3 is first concentrated at the upper corner (shoulder) of the opening 30 for fitting the window member (see F1 in Fig. 3). Due to the concentration of this stress, the inner panel 31 is deformed from the rear side of the vehicle to the front side of the vehicle so as to be rolled from the outer side in the vehicle width direction to the inner side in the vehicle width direction (rolling deformation) (see F2 in Fig. 3). As a result, in conjunction with the above deformation (rolling deformation), the lower end of the inner panel 31 in the vehicle height direction is deformed so as to extend from the upper side of the vehicle to the lower side of the vehicle (drooping deformation) (see F3 in Fig. 3).

[0051] In contrast, in the above vehicle panel 1, the elastic member 5 is disposed between the body panel 2 and the back door panel 3. Therefore, in the above vehicle panel 1, the elastic member 5 can suppress the rolling deformation of the inner panel 31.

[0052] In particular, in the above-mentioned vehicle panel 1, the elastic member 5 is disposed at a height equal to or more than half the height of the opening 30 in the vehicle height direction in the portion where the body panel 2 and the back door panel 3 face each other (see Figures 4A to 4C).

[0053] Therefore, for example, compared to when the elastic member 5 is positioned at a position less than half the height of the opening in the vehicle height direction (see Figure 4D), the above-mentioned elastic member 5 can better suppress the rolling deformation of the inner panel 31.

[0054] As a result, according to the vehicle panel 1, the drooping deformation of the inner panel 31 caused by the rolling deformation can be suppressed. [Explanation of symbols]

[0055] 1 Vehicle panel 2 Body Panel 3 Back door panel 5 Elastic member 30 Opening 31 Inner Panel 32 Outer Panel

Claims

[Claim 1] Body panel; A back door panel attached to the body panel; an elastic member disposed between the body panel and the back door panel; Equipped with An upper end portion of the back door panel is connected to the body panel so that the back door panel is suspended from the upper side of the vehicle toward the lower side of the vehicle, The back door panel includes an inner panel and an outer panel, the inner panel is made of a resin material and has an opening for fitting a window member therein; The elastic member is a deformation suppressing material for suppressing deformation of the inner panel, The deformation includes a rolling deformation in which the inner panel is deformed from the rear side of the vehicle toward the front side of the vehicle so as to roll from the outer side of the vehicle in the vehicle width direction toward the inner side of the vehicle in the vehicle width direction, The elastic member is In a portion where the body panel and the back door panel face each other, At a height equal to or more than half the height of the opening in the vehicle height direction, The vehicle panel is disposed so that stress acts in a direction that suppresses the rolling deformation.

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