JP4724046B2 - Vehicle door structure - Google Patents

Description

  The present invention relates to a vehicle door structure that can suppress vibration of an outer panel.

  Conventionally, as a vehicle door structure that suppresses vibration of the outer panel when the door is closed, one end side surface is fixed to the inner panel, and the other end side surface is regulated to a substantially central portion of the outer panel. Is known (for example, see Patent Document 1).

As a means to suppress the closing noise generated when the vehicle door is closed, a damping material is attached to the inner surface of the outer panel (the surface on the vehicle interior side), or a mastic sealer used as an adhesive and cushioning material is used. It has been conventionally used.
Japanese Patent Laying-Open No. 2005-81880 (paragraphs 0023 to 0025, FIGS. 1 to 4)

However, in the door structure of the vehicle as in Patent Document 1, a regulating member connected to the inner panel is arranged on a part of the diagonal line of the outer panel to excite a vibration component, and the door is closed. There is a problem that the sound becomes loud.
In this door structure, since the restricting member cannot be disposed at an appropriate position depending on the shape and size of the door, vibration can be suppressed only in a part on the diagonal line, and a desired vibration suppressing effect can be obtained. There is a problem that it is not possible.

  Since the vibration damping material is relatively expensive, the cost is high, and the process of sticking to the door is after the door baking painting process.

On the other hand, the mastic sealer is expensive and has to be heat-cured, so that it takes time to install and has many disadvantages from the viewpoint of the volatile substance phenomenon.
In addition, when a seal member is installed on a door as a vibration damping material, it cannot be used as a vibration damping material unless other functions such as water leakage are sacrificed at a location specialized in low frequency low frequency sound. There is a problem that there are many.

  Then, this invention makes it a subject to provide the door structure of the vehicle which can suppress a vibration and can obtain the favorable closing sound of a door.

As a means for solving the above problem, a door structure according to claim 1, the vehicle in a door having an inner panel and, an outer panel having an approximately rectangular shape provided outside the inner panel The outer panel is curved so as to swell outward in the vehicle compartment when viewed from the front-rear direction , and on the inner surface of the outer panel, there is a plate-like patch at the center near the intersection of the diagonal lines. A member is installed only on the outer panel , and a seal member is provided between the patch member and a corner of the outer panel and at a position spaced apart from the patch member on a substantially diagonal line of the outer panel , Outside the inner panel, a door beam extends along a substantially diagonal line of the inner panel, and the seal member is connected to the outer panel and the front panel. Is interposed between the door beam, characterized in that it is affixed to the exterior surface of the the cabin-side surface of the outer panel door beam.

According to the vehicle door structure invention described in claim 1, when the door is braked, a patch member is attached to the center portion of the outer panel having the largest amplitude to increase the rigidity, thereby generating a door closing sound. By converting to a low frequency range, it is possible to make a high-quality door closing sound, a so-called powerful closing sound. Further, the door of the vehicle is provided with a sealing member between the patch member provided on the outer panel and the corner of the door, thereby suppressing vibrations from being transmitted to a region sandwiching the diagonal line, and the door closing sound. And prevent vibration from becoming large.
In addition, since the door of the vehicle has a sealing member interposed between the outer panel and the door beam, the vibration suppression effect is further improved, the door closing sound is improved, and the door closing sound is comfortably closed. Can be sound.

  The vehicle door structure invention according to claim 2 is the vehicle door structure according to claim 1, wherein the patch member is formed in a substantially rectangular shape, and a corner portion of the patch member is formed on the outer panel. It is characterized by being disposed on a substantially diagonal line.

  According to the vehicle door structure invention described in claim 2, when the door of the vehicle is closed, the displacement amount of each part of the outer panel is determined by the patch member disposed on the substantially diagonal line of the substantially rectangular outer panel. It can be regulated to be uniform. Furthermore, since the patch member can absorb and suppress the transmission of vibration to the area sandwiching the diagonal line, the vibration and closing sound when the door is closed can be suppressed.

A vehicle door structure invention according to claim 3 is the vehicle door structure according to claim 1 or 2, wherein a hinge means connected to a vehicle body is provided on one side of the inner panel. Door locking means for maintaining the closed state of the door is provided on the other side of the inner panel, and an outer handle for opening and closing the door is provided on the other side of the outer panel. The seal member is provided only on the other side of the outer panel with respect to the patch member on a substantially diagonal line connecting the upper corner on one side of the outer panel to the lower corner on the other side. It is characterized by.

  According to the vehicle door structure invention described in claim 3, when the door of the vehicle is closed, the diagonal line connecting the upper corner on one side of the outer panel to the lower corner on the other side when the door is closed. It is desirable to suppress the vibration generated on the other side of the outer panel and transmitted to the one side. Since the vibration is absorbed by providing the seal member on the diagonal line of the outer panel at the door of the vehicle, the vibration and the closing sound can be suitably suppressed.

Further , according to the invention of the vehicle door structure according to claim 3 , the vehicle door is provided with a seal member only on the other side of the outer panel where vibration is generated. It is possible to obtain a configuration that saves the use amount of the sealing member as much as possible.

The vehicle door structure invention according to claim 4 is the vehicle door structure according to claim 3 , wherein the outer panel is formed of a metal member having a linear expansion coefficient larger than that of the door beam, The patch member is formed of a thermosetting member that is cured by heat when the door is baked and painted .

According to the vehicle door structure invention described in claim 4 , since the vehicle door is formed of different materials for the outer panel and the door beam, for example, only the outer panel is formed of a light alloy such as an aluminum alloy. It is possible to reduce the weight of the door.

According to the vehicle door structure of the present invention, the vehicle door is provided with a patch member on the outer panel, thereby increasing the rigidity of the entire door and making the door closing sound a high-class sound, so-called powerful closing. Can be sound.
In addition, since the door of the vehicle is provided with the seal member on the outer panel, it is possible to suppress vibration and sound when the door is closed and to obtain a good closing sound.

Hereinafter, an example of a vehicle door structure according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic exploded perspective view showing a vehicle door structure according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a vehicle door structure according to the embodiment of the present invention, and is an explanatory diagram illustrating an installation state of a seal member and a patch member.
In the embodiment of the present invention, “front” is the front side of the vehicle, “rear” is the rear side of the vehicle, “upper” is the vertical upper side, and “lower” is the lower vertical side.

≪Door configuration≫
First, the door D is demonstrated with reference to FIG. 1 and FIG.
As shown in FIGS. 1 and 2, the door D is a hinged door disposed on the left side of the front seat of the vehicle body, for example.
The vehicle door structure according to the embodiment of the present invention can be applied to all types of vehicle doors D as long as it is a hinged door. To do.

The door D includes an inner panel 1 constituting the door body and an outer panel 2 provided on the outer side (outside) of the inner panel 1. The inner panel 1 and the outer panel 2 are formed in a substantially rectangular shape. This is a vehicle door. In addition, the door D is provided in the door D and provided on the inner panel 1, a hinge (hinge means) 4 for rotatably attaching the door D to the vehicle body, and an inner door D. It mainly includes an anti-vibration (damping) seal member 5 and a patch member 6 and a door lock device (door lock means) 7 that keeps the door D closed.
Further, the door D includes a lining (not shown), a window device for raising and lowering the window glass, an inside handle and an outer handle for opening and closing the door, and electrical components such as a window device installed in the door D, And a rubber frame or the like installed on the entire periphery of the door D. The door D is, for example, a so-called hybrid door including an inner panel 1 made of steel and an outer panel 2 made of a light alloy such as an aluminum alloy.

≪Inner panel configuration≫
As shown in FIG. 1, the inner panel 1 is a frame member that constitutes the skeleton of the door D and the inner structure of the door D, and is formed of a metal such as steel, for example. On the front side (one side) 11 a side of the inner panel 1, a pair of upper and lower hinges (hinge means) 4 that are rotatably connected to the vehicle body are provided, and the rear side (other side) of the inner panel 1. On the 11b side, a door lock device 7 (door lock means) for holding the closed state of the door D is provided. The inner panel 1 is formed by welding a frame body 11 on which a door beam 3 is installed and a sash 12 on which a window glass G is arranged to be movable up and down. A door beam 3 extending along a substantially diagonal line of the inner panel 1 is provided on the outer side (outside) of the inner panel 1 in the passenger compartment.

  A frame main body 11 shown in FIG. 1 is a member constituting the base of the door D, and is formed in a substantially rectangular shape. The hinges 4 are provided on the upper end portion and the lower end portion of the front side portion 11a of the frame portion main body 11, respectively. The door beam 3 is fixed to the inner upper end portion of the front side portion 11a and the inner lower end portion of the rear side portion 11b by a fastening member or the like. Further, a door lock device 7 having a built-in latch (not shown) with which a striker (not shown) provided on the vehicle body is engaged is installed on the rear side portion 11b.

  The sash 12 is a window frame of the window glass G, and has a front end and a lower end connected to the upper front end and the upper rear end of the frame main body 11 by welding. The sash 12 and the frame body 11 may be integrally formed. Further, the sash 12 may not be a hard top vehicle.

≪Outer panel configuration≫
The outer panel 2 shown in FIG. 1 is a thin plate-like member that forms the outer structure of the door D. For example, the outer panel 2 is made of a light alloy rolled plate material such as an aluminum alloy or a magnesium alloy, and is formed by pressing. The outer panel 2 is attached to the periphery of the frame body 11 of the inner panel 1 by using both hemming and welding or joining with a structural adhesive. On the inner surface (back surface) of the outer panel 2, a plate-like patch member 6 formed in a substantially rectangular shape is provided in the central portion near the intersection of the diagonal lines, and between the patch member 6 and the corner portions 2 a and 2 b. A seal member 5 is disposed between them.

As shown in FIG. 2, the door beam 3 is connected to the vehicle interior side of the outer panel 2 by an adhesive seal member 5. A patch member 6 is attached to the center of the outer panel 2 on the vehicle interior side. As shown in FIG. 2, the outer panel 2 is curved so as to swell in the vehicle exterior side direction when viewed from the front-rear direction. For this reason, in the center part of the outer panel 2, the patch member 6 and the door beam 3 formed straight are arrange | positioned in the non-contact state.
In addition, the outer panel 2 is provided with a reinforcing upper outer frame 21 at the upper end. An outer handle (not shown) is disposed in the vicinity of the rear end side of the outer panel 2.

≪Composition of door beam≫
As shown in FIG. 1, the door beam 3 is a member for reinforcing the inner panel 1, and is made of a metal member reinforced by bending and forming an edge portion of, for example, a grooved groove steel. The outer panel 2 made of light alloy such as aluminum alloy and the door beam 3 made of steel are formed of materials having different materials. The door beam 3 has a front end portion 3a connected to a front side portion 11a of the inner panel 1 by a fastening member such as a bolt, and a rear end portion 3b located below the position of the front end portion 3a. It is connected to the lower part of this by a fastening member such as a rivet and is disposed obliquely. The door beam 3 is installed on a substantially diagonal line of the substantially rectangular frame body 11 and is also arranged on the substantially diagonal line with respect to the outer panel 2, and as shown in FIG. 2, the central portion is located on the vehicle interior side of the outer panel 2. It arrange | positions in the state away from the surface (back surface). Further, a seal member 5 attached to a surface of the outer panel 2 on the vehicle interior side is attached to the front end portion 3 a and the rear end portion 3 b of the door beam 3.

≪Configuration of seal member≫
The seal member 5 shown in FIG. 2 is a shock absorbing member (a damping member) for absorbing sound, vibration, and shock when the door D is closed, or suppressing vibration of the door D during traveling. It has adhesiveness such as mastic sealer and hot melt and can be relatively displaced. The seal member 5 is provided on a substantially diagonal line connecting the upper corner 2a on the front end (one side) 2c side of the outer panel 2 to the lower corner 2b on the rear end (other side) 2d side. (See FIG. 1).

  As shown in FIG. 2, the seal member 5 is interposed between the outer panel 2 and the door beam 3, and is adhered to a surface on the vehicle interior side of the outer panel 2 and a surface on the vehicle exterior side of the door beam 3. For this reason, the outer panel 2 is in contact with the door beam 3 in a state where it can be finely moved by contacting the door beam 3 with the seal member 5 interposed therebetween.

As shown in FIG. 1, for example, the seal member 5 has a length of 50 mm or more, is formed elongated, and is disposed along the door beam 3.
A mastic sealer (also called a mastic adhesive) is an elastic sealer used as an adhesive and cushioning material, and is made of, for example, an epoxy resin.

≪Configuration of patch member≫
The patch member 6 shown in FIG. 1, like the seal member 5, absorbs sound, vibration and shock when the door D is closed, and a buffer member (control) for suppressing vibration of the running door D. Vibration member), which is formed of a flexible member such as a thermosetting synthetic resin. For example, the patch member 6 is cured by heat when the door D is baked and painted. For example, the patch member 6 is formed in a substantially rectangular shape having a thickness of 1.2 mm or more and a length of 200 mm × width of 300 mm or more, and corners (four corners) 6 a (see FIG. 5) of the patch member 6 are substantially the same as the outer panel 2. The outer panel 2 is attached to the surface on the vehicle interior side so as to be disposed on the diagonal lines S1, S2 (see FIG. 5). For example, as shown in FIG. 1, the patch member 6 is attached to the central portion of the outer panel 2 that is an intersection of diagonal lines. As shown in FIG. 2, the patch member 6 is disposed at a position away from the door beam 3 because the central portion of the outer panel 2 is slightly curved.

<< Operation of vehicle door structure >>
Next, the operation of the vehicle door structure according to the embodiment of the present invention will be described with reference to FIGS.
When the passenger closes the door D shown in FIG. 1, the door D rotates around the hinges 4 and 4 of the front side portion 11a, and a latch (not shown) of the door lock device 7 of the rear side portion 11b By being engaged with a striker (not shown) provided on the vehicle body, it is in a closed state. At this time, the door beam 3 is provided with seal members 5 and 5 made of elastic members at the front end portion 3a and the rear end portion 3b, so that impact, vibration, and closing sound are absorbed. Further, since the seal member 5 is in contact with the upper side of the front end 2c of the outer panel 2 and the lower side of the rear end 2d, the seal member 5 absorbs the vibration of the outer panel 2 and suppresses the vibration.

  Since the outer panel 2 is connected to the door beam 3 by the seal members 5 and 5 so as to be slightly changeable relative to each other, the outer panel 2 has a relatively fine elasticity so that an impact, vibration, or closing sound is generated in the seal members 5 and 5. Absorbed.

In addition, a patch member 6 is attached to a central portion where the diagonal lines of the outer panel 2 intersect. For this reason, the outer panel 2 is absorbed and suppressed by the patch member 6 and the seal member 5, and the rigidity is improved.
Further, a door lock device 7 and an outer handle (not shown) are disposed in the vicinity of the rear end 2d side of the outer panel 2. For this reason, the vibration at the time of opening and closing the door D can be suppressed, and the sound which the door D closes can be made into the comfortable suitable closing sound.

  In this way, the door D absorbs shock, vibration, and closing sound by the seal member 5 and the patch member 6, and the rigidity is improved, whereby the frequency, amplitude, and wavelength are adjusted. In particular, the seal members 5 and 5 have an effect of preventing a peculiar reversal sound of the hybrid door D including the inner panel 1 made of steel and the outer panel 2 made of a light alloy such as an aluminum alloy, and the patch member 6 is generally high-grade. There is an excitation effect of a low-frequency sound of a low frequency that is regarded as a close sound of the door D.

FIG. 3 is a graph showing the volume and frequency when the door is closed in the vehicle door structure according to the embodiment of the present invention, and is a graph showing the difference from the comparative example not including the seal member and the patch member. is there.
As shown in FIG. 3, the door D is closed with a closing sound of the door D being swung to a predetermined low frequency range as compared with the sounds a and b of the comparative example of the door not including the seal member and the patch member. Thus, powerful sounds A and B can be obtained. Since the door D has the sealing member 5 and the patch member 6 disposed at appropriate positions, a high-quality closing sound can be achieved with low cost and a small number of man-hours.

  FIG. 4 is a schematic view showing a deformation amount due to thermal expansion of a door composed of an inner panel made of steel and an outer panel made of aluminum alloy, and (a) is a deformation of a door of a comparative example that does not include a seal member and a patch member. The schematic diagram which shows quantity, (b) is the schematic figure which shows the deformation quantity in the door of this invention.

  For example, in the door 100 of the comparative example that does not include the seal member and the patch member, when the temperature rises during baking coating, the expansion rate of the outer panel 200 is large, and the difference in linear expansion coefficient results in FIG. As shown, the deformation (approximately −4000 μm to +4000 μm) is relatively large. In particular, the deformation amount is about +4000 μm at the front lower end portion 210 of the outer panel 200, and the deformation amount is about −4000 μm at the rear lower end portion 220 of the outer panel 200, and the overall deformation amount of the door 100 is increased. Yes. Further, at the upper end portion 230 of the outer panel 200, the amount of deformation due to thermal expansion is about +4000 μm, and changes partially.

  On the other hand, the door D of the present invention has a deformation amount (approximately approximately) as shown in FIG. 3 (b) by sticking the patch member 6 to the center of the surface of the outer panel 2 on the vehicle interior side. +1000 μm) is small, indicating that the seal member 5 and the patch member 6 have an effect of reducing the deformation amount of the outer panel 2.

  As shown in FIG. 2, the substantially rectangular and plate-like patch member 6 is disposed at the center of the surface of the outer panel 2 on the vehicle interior side, so that other fittings (window regulator) attached to the door D are provided. Etc.), workability is good. And since the patch member 6 is installed only in the outer panel 2 and is away from the steel door beam 3 disposed in the vicinity, the patch member 6 is affected by the difference in thermal expansion between the outer panel 2 and the door beam 3 and peels off. Will not occur. Further, since the patch member 6 is thermally cured when the door D is baked and painted, the number of assembling steps does not newly increase.

  The present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the technical idea. The present invention extends to these modifications and changes. Of course.

≪Modification≫
Next, a modified example of the vehicle door structure according to the embodiment of the present invention will be described with reference to FIG.
In addition, in a modification, the same code | symbol is attached | subjected to the member which has the same function as the vehicle door structure which concerns on the said embodiment shown in FIGS. 1-4, and the overlapping description is abbreviate | omitted.
FIG. 5 is a perspective view of an outer panel showing a modification of the vehicle door structure according to the embodiment of the present invention.

  The seal member 5 (see FIG. 1) of the door D of the above embodiment may be a seal member 5A provided on the outer panel 2A as in the modification shown in FIG. 5, and is disposed on the substantially diagonal lines S1 and S2 of the outer panel 2A. If so, the shape, installation direction, quantity, etc. thereof are not particularly limited.

For example, the seal member 5A is formed on substantially diagonal lines S1 and S2 that connect the upper corner 2a on the front end (one side) 2c side of the outer panel 2A to the lower corner 2b on the rear end (other side) 2d side. The patch member 6 may be provided only on the other side of the outer panel 2A.
In this case, as shown in FIG. 5, the seal member 5 </ b> A may be an elongated member disposed on the outer panel 2 </ b> A in the horizontal direction or may be disposed in the vertical direction.
When the seal member 5A is installed on the side of the rear end 2d where the door lock device 7 and the outer handle (not shown) having the effect of suppressing the vibration of the door D are installed, the seal member 5A vibrates toward the hinge 4 side. Therefore, the vibration and closing sound of the door D can be further effectively suppressed.

The patch member 6 is formed in a substantially rectangular shape, and each corner (four corners) 6a is disposed on the substantially diagonal lines S1 and S2 of the outer panel 2A.
By doing in this way, when the door D is closed, the patch member 6 disposed on the substantially diagonal lines S1 and S2 of the substantially rectangular outer panel 2A regulates the displacement amount of each part to be uniform. . Furthermore, since the patch member 6 can absorb and suppress the transmission of vibration to the region sandwiching the diagonal lines S1 and S2, vibration and closing sound when the door is closed can be suppressed.

  Further, as shown in FIG. 1, the door beam 3 of the embodiment has a front end portion 3 a connected to the upper side of the front side portion 11 a of the inner panel 1, and a rear end portion 3 b of the rear side portion 11 b of the inner panel 1. Although the case where it was connected to the lower side and the rear side was disposed obliquely downward has been described, it is not limited to this.

  For example, the door beam 3 only needs to be disposed on a substantially diagonal line of the inner panel 1, the front end portion 3 a is connected to the lower side of the front side portion 11 a of the inner panel 1, and the rear end portion 3 b is connected to the inner panel 1. It may be connected to the upper side of the rear side portion 11b and the rear side may be disposed obliquely upward. That is, the door beam 3 should just be arrange | positioned so that the closed cross section which becomes a triangle or a trapezoid may be formed with respect to the substantially frame-shaped frame part main body 11. FIG.

  The door beam 3 is preferably disposed on the diagonal line of the inner panel 1, but may be disposed obliquely on the inner panel 1, and the front end portion 3 a and the rear end portion 3 b are the corner portions of the outer panel 2. It may be slightly deviated from 2a and 2b and slightly deviated from the diagonal line.

1 is a schematic exploded perspective view showing a door structure of a vehicle according to an embodiment of the present invention. It is a figure which shows the door structure of the vehicle which concerns on embodiment of this invention, and is explanatory drawing which shows the installation state of a sealing member and a patch member. It is a graph which shows a volume and frequency when a door in a door structure of vehicles concerning an embodiment of the present invention is closed, and is a graph which shows a difference with a comparative example which is not provided with a seal member and a patch member. It is the schematic which shows the deformation | transformation amount by the thermal expansion of the door which consists of an inner panel made from steel, and an outer panel made from an aluminum alloy, (a) is a schematic which shows the deformation amount of the door of the comparative example which is not provided with the sealing member and the patch member. FIG. 4B is a schematic view showing the deformation amount in the door of the present invention. It is a perspective view of the outer panel which shows the modification of the door structure of the vehicle which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inner panel 2, 2A Outer panel 2a, 2b Corner | angular part 2c, 11a One side part 2d, 11b Other side part 3 Door beam 4 Hinge (hinge means)
5,5A Seal member 6 Patch member 6a Corner 7 Door lock device (door lock means)
D Door S1, S2 Diagonal line

Claims (4)

A vehicle door structure in a door having an inner panel and an outer panel provided outside the inner panel and formed in a substantially rectangular shape,
The outer panel is formed in a curved shape so as to swell in the vehicle exterior direction as seen from the front-rear direction.
On the inner surface of the outer panel, a plate-like patch member is installed only on the outer panel at a central portion that is near the intersection of diagonal lines , and between the patch member and the corner of the outer panel , and the outer panel. at a position spaced from the patch member on substantially diagonal of the sealing member is provided,
Outside the inner panel, a door beam extends along a substantially diagonal line of the inner panel,
The vehicle door structure characterized in that the seal member is interposed between the outer panel and the door beam, and is adhered to a surface of the outer panel on the vehicle interior side and a surface of the door beam on the vehicle outer side. . The patch member is formed in a substantially rectangular shape,
2. The vehicle door structure according to claim 1, wherein corner portions of the patch member are disposed on a substantially diagonal line of the outer panel. On one side of the inner panel, hinge means connected to the vehicle body is provided,
On the other side of the inner panel, door lock means for holding the closed state of the door is provided,
On the other side of the outer panel, an outer handle for opening and closing the door is provided,
The seal member is provided only on the other side of the outer panel with respect to the patch member on a substantially diagonal line connecting the upper corner on one side of the outer panel to the lower corner on the other side. The vehicle door structure according to claim 1 or 2, wherein the vehicle door structure is provided. The outer panel is formed of a metal member having a larger linear expansion coefficient than the door beam, and is formed of a material different from the door beam ,
4. The vehicle door structure according to claim 3 , wherein the patch member is formed of a thermosetting member that is cured by heat when the door is baked and painted .

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