JP4455624B2 - Vehicle door structure - Google Patents

Description

  The present invention relates to a vehicle door structure including an outer panel and an inner panel.

As a vehicle door structure, a vehicle door structure in which the outer panel and the inner panel are joined to each other by hemming the outer panel has been put to practical use.
The door structure of a practical vehicle is practically sufficient if a drain hole is formed in the inner panel and the peripheral portions of the outer panel and the inner panel are joined.

As such a door structure of a vehicle, a structure using a sealing material at a peripheral portion between an outer panel and an inner panel is known (for example, see Patent Document 1).
Japanese Utility Model Publication No. 60-136218 (2nd page, FIG. 3)

The technique of Patent Document 1 will be described.
FIG. 7 is a diagram for explaining a basic configuration of a conventional door structure of a vehicle.
A conventional vehicle door structure 200 includes an outer panel 201 and an inner panel 202. End portions of the outer panel 201 and the inner panel 202 are formed with a bag-like joint portion 203 by hemming, and an upper portion of the joint portion 203. In addition, a drain hole 204 is provided in the inner panel 202, a closed section 205 is formed between the outer panel 201 and the inner panel 202, and a foamable sealing material (adhesive) 206 is filled in the closed section 205. It has been done.

  In recent years, for example, a steel door is used for the inner panel and an aluminum alloy plate is used for the outer panel. In recent years, the inner panel and the outer panel of a vehicle door may be made of different metals. In such a case, consideration should be given to a structure in which electrolytic corrosion is unlikely to occur.

  Here, galvanic corrosion means that low-potential metal (aluminum) becomes positive and high-potential metal (iron) becomes negative when a dissimilar metal comes into contact and is immersed in a conductive liquid (rain water). This is a phenomenon in which the plus side metal (aluminum) is ionized and corroded. This corrosion is referred to as electromotive corrosion or electrochemical corrosion, and is generally referred to as electrolytic corrosion.

  However, in the vehicle door structure 200 described above, the edge portion 207 of the drain hole formed in the inner panel 202 is in a position where the outer panel 201 comes into contact with or is easily contacted, and sufficient consideration is given to electric corrosion. I can not say.

  An object of the present invention is to provide a vehicle door structure that can sufficiently prevent electrolytic corrosion when an inner panel and an outer panel are made of different metals.

The invention according to claim 1 includes an outer panel disposed on the outer side of the vehicle and an inner panel disposed on the inner side of the vehicle, and hemming is performed on the outer panel by performing hemming on the outer panel. A door structure of a vehicle provided with a processing portion, which is formed adjacent to a hemming processing portion, and a reservoir-shaped portion filled with an adhesive is provided in a gap between the outer panel and the inner panel, An outer panel, a separation portion formed on the inner panel and extending in a direction away from the outside of the vehicle from the periphery, and formed continuously from the separation portion formed on the inner panel and gradually approaching the substantially vertical direction. The extension line of the inner surface of the outer panel and the substantially extension line of the inner surface of the separating part are set at an acute angle, and the extension line and the substantially extension line of the inner surface of the folding part are set substantially parallel to each other. In the inner panel, the portion continuing from the folded portion on the side opposite to the separating portion is formed away from the outside of the vehicle, and a drain hole is formed in at least a part of the pool-shaped portion, and the outer panel and the inner panel are , Which are made of different metals.

According to a second aspect of the present invention, an edge portion which is formed below the drain hole is being located in the separated portion.

In the invention according to claim 1, the door structure of the vehicle includes an outer panel disposed on the vehicle outer side and an inner panel disposed on the vehicle inner side. The outer panel includes a hemming portion that joins the peripheral edge of the inner panel.
A pool-shaped portion that is formed adjacent to the hemming portion and is filled with an adhesive is provided in the gap between the outer panel and the inner panel. As a result, the adhesive can be stored in the pool-shaped portion, and the adhesive can be filled between the outer panel and the inner panel without any gap. As a result, it is possible to prevent rust from being generated between the outer panel and the inner panel.

Reservoir shape portion, and the outer panel, are formed in the inner panel, and a separating portion which is extended in a direction away from the outside from the peripheral portion, is formed in the inner panel, while being formed continuously from the separating unit, generally It is composed of a folded portion that is formed so as to gradually approach the vertical direction. Are set substantially parallel. The separation portion and the turn-back portion have a shape that can be integrally formed when the inner panel is press-molded, and when the pool-shaped portion is formed, an increase in cost can be prevented.
Moreover, since the inner panel is provided with the separation portion that extends in the direction away from the vehicle exterior from the peripheral portion, the adhesive can be filled along the separation portion when the adhesive is filled. Furthermore, directed to the inner panel, while being formed continuously from the separating unit, because with a folded portion formed close gradually in a substantially vertical direction, when to fill the adhesive, the adhesive outer panel The force to be generated can be generated. As a result, the adhesive can be spread over the pool-shaped portion without any gap.
In the inner panel, a portion continuous from the folded portion on the side opposite to the separating portion is formed away from the outside of the vehicle, a drain hole is formed in at least a part of the pool-shaped portion, and the outer panel and the inner panel are mutually connected. Consists of different metals. That is, it is possible to effectively prevent galvanic corrosion that occurs when different metals contact.

In the invention according to claim 2, since the edge portion which is formed below the drain hole is located away portion, it is possible to cover the edge portion with adhesive. As a result, rust prevention of the edge portion can be performed.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a plan view of a door panel employing a vehicle door structure according to the present invention, and FIG. 2 is an enlarged view of part 2 of FIG.
As shown in FIGS. 1 and 2, the door panel 10 includes an outer panel 11 disposed outside the vehicle, an inner panel 12 disposed inside the vehicle, and the outer panel 11 and the inner panel 12. Interposed between them, a reinforcing member 13 that reinforces the outer panel 11 and the inner panel 12, a plurality of drain holes 14 that are formed in the inner panel 12 and drain water from between the outer panel 11 and the inner panel 12, and the outer panel 11 and A window frame 21 which is composed of an adhesive 15 filled between the inner panels 12 and a sealing material (sealer) 17 applied to the end portion 11a of the outer panel 11 and on which a window glass (not shown) can be freely opened and closed. And a door body 22 which is formed at the lower part of the window frame 21 and accommodates the window glass.

3 is a cross-sectional view taken along line 3-3 in FIG. 1, and FIG. 4 is a cross-sectional view taken along line 4-4 in FIG.
The vehicle door structure 30 is a structure that is employed at the lower end of the door panel 10 shown in FIG. 1, and includes an outer panel 11 that is disposed outside the vehicle, an inner panel 12 that is disposed inside the vehicle, and an outer panel. 11, a hemming portion (hemming portion) 32 that joins the peripheral edge portion 31 of the inner panel 12 by performing hemming, and a water drain formed on the inner panel 12 to drain water between the outer panel 11 and the inner panel 12 A hole-shaped portion 33 formed adjacent to and above the hemming portion 32 and formed in the gap between the outer panel 11 and the inner panel 12, and an adhesive 15 filled in the pool-shaped portion 33 And a sealing material (sealer) 17 that covers the end portion 11a of the outer panel 11 on which the hemming portion 32 is provided.

  In the vehicle door structure 30, a pool-shaped portion 33 that is formed adjacent to and above the hemming portion 32 and is filled with the adhesive 15 is provided in the gap between the outer panel 11 and the inner panel 12. As a result, the adhesive can be stored in the pool-shaped portion 33, and the adhesive can be filled between the outer panel 11 and the inner panel 12 without a gap. As a result, it is possible to prevent rust from being generated between the outer panel 11 and the inner panel 12.

As will be described later, the outer panel 11 and the inner panel 12 are made of different metals. In such a case, consideration should be given to a structure in which electrolytic corrosion is unlikely to occur.
Here, galvanic corrosion means that low-potential metal (aluminum) becomes positive and high-potential metal (iron) becomes negative when a dissimilar metal comes into contact and is immersed in a conductive liquid (rain water). This is a phenomenon in which the plus side metal (aluminum) is ionized and corroded. This corrosion is referred to as electromotive corrosion or electrochemical corrosion, and is generally referred to as electrolytic corrosion.

  The outer panel 11 is a member formed of aluminum or an aluminum alloy, and includes a panel main body portion 34 that covers the outer surface of the vehicle, and a hemming portion 32 that is bent from the panel main body portion 34 toward the inner panel 12.

The inner panel 12 is a member formed of a steel plate, and includes a peripheral edge portion 31 covered with the outer panel 11, a separation portion 36 extending in a direction away from the vehicle periphery from the peripheral edge portion 31, and the separation portion 36. A folding portion (asymptotic portion) 37 formed continuously and asymptotically formed in a substantially vertical direction.
The pool-shaped portion 33 is a gap formed by the panel main body portion 34 of the outer panel 11, the separation portion 36 of the inner panel 12, and the folded portion 37 of the inner panel 12.

  As shown in FIG. 3, when the extension line of the inner surface 11b of the outer panel 11 is C1, the extension line of the inner surface 36a of the separating part 36 is C2, and the extension line of the inner surface 37a of the folded part 37 is C3, An extension line C1 of the inner surface 11b of the outer panel 11 and a substantially extension line C2 of the inner surface 36a of the separating portion 36 are set at an acute angle. It is set to be approximately parallel.

  Furthermore, as shown in FIG. 4, the distance t1 between the inner surface 11b of the outer panel 11 and the edge portion 14a of the drain hole 14 closest to the inner surface 11b was secured to 0.5 mm. Preferably, 1.0 mm is secured.

  In the vehicle door structure 30, the drain hole 14 is formed in the inner panel 12, and the edge portion 14 a formed below the drain hole 14 is located at the separation portion 36. Can be covered. As a result, rust prevention of the edge portion 14a can be performed.

FIGS. 5A to 5C are explanatory views showing the difference in filling of the adhesive depending on the cross-sectional shape of the vehicle door structure.
In (a), a vehicle door structure 100 of a comparative example is shown. In the vehicle door structure 100, a pool-shaped portion 103 is formed on the outer panel 101 and the inner panel 102, and is formed in parallel with the outer panel 101. It is formed with a separation part (parallel part) 106. Since the outer panel 101 and the separation part 106 are parallel, when the adhesive 105 is filled in the gap between the outer panel 101 and the inner panel 102, the adhesive 105 does not follow and is not sufficiently filled.

  In (b), the vehicle door structure 50 of the second embodiment is shown. The vehicle door structure 50 has a pool-shaped portion 53 formed on the outer panel 51 and the inner panel 52 and at an acute angle on the outer panel 51. The separated portion 56 is formed. Since the outer panel 51 and the separating portion 56 are acute angles, the adhesive 55 is followed and filled when the adhesive 55 is filled in the gap between the outer panel 51 and the inner panel 52.

  In (c), the vehicle door structure 30 of the embodiment is shown, and the inner panel 12 is provided with a folded portion 37 that is formed continuously from the separating portion 36 and asymptotically approximated in the vertical direction. When the adhesive 15 is filled, a force for directing (pressing) the adhesive 15 toward the outer panel 11 can be generated. As a result, the adhesive 15 can be spread over the pool portion 33 without a gap.

  In the vehicle door structure 30, a pool-shaped portion 33 is formed on the outer panel 11 and the inner panel 12, and is formed on the inner panel 12 and a separation portion 36 that extends from the peripheral edge portion 31 in a direction away from the outside of the vehicle. The folded portion 37 is formed continuously from the separating portion 36 and is formed asymptotically in the substantially vertical direction. The separation part 36 and the turn-back part 37 have a shape that can be integrally formed when the inner panel 12 is press-molded, and when the pool-shaped part 33 is formed, an increase in cost can be prevented.

  In addition, since the inner panel 12 includes the separation portion 36 that extends from the peripheral edge portion 31 in a direction away from the outside of the vehicle, the adhesive 15 is filled along the separation portion 36 when the adhesive 15 is filled. Can be made.

  Further, since the inner panel 12 is provided with the folded portion 37 formed continuously from the separating portion 36 and made asymptotically approximated in the vertical direction, when the adhesive 15 is filled, the adhesive 15 is removed from the outer panel. It is possible to generate a force directed (pressed) toward the 11 side. As a result, the adhesive 15 can be spread over the pool portion 33 without a gap.

  In particular, in the vehicle door structure 30, the outer panel 11 and the inner panel 12 are made of different metals. Therefore, for the reasons described above, it is possible to effectively prevent electrolytic corrosion that occurs when different metals come into contact with each other.

FIGS. 6A to 6D are explanatory views showing the difference in the application position of the adhesive depending on the cross-sectional shape of the vehicle door structure. (A), (b) shows the state before hemming of the door structure 100 of the vehicle of the comparative example, and (c), (d) shows the state before hemming of the door structure 30 of the vehicle of the example. .
In (a), in the vehicle door structure 100, the adhesive 105 is applied between the peripheral edge 111 and the inner surface 108 of the outer panel 101 at the position of the peripheral edge 111 of the inner panel 102.

  In (b), when the inner panel 102 is pressed against the outer panel 101 as indicated by an arrow a1, the adhesive 105 flows as indicated by arrows a2 and a3, and when the outer panel 101 is subjected to hemming, the end portion of the outer panel 101 is obtained. The adhesive may protrude from 109. That is, it is necessary to perform a wiping operation for the adhesive 105.

  In (c), in the vehicle door structure 30, the adhesive 15 is applied between the separation portion 36 and the inner surface 11 b of the outer panel 11 at a position near the separation portion 36 of the inner panel 12.

  In (d), when the inner panel 12 is pressed against the outer panel 11 as indicated by the arrow b1, the adhesive 15 flows in the direction of the arrow b2. Since the separating portion 36 is formed at an acute angle with respect to the outer panel 11, the movement of the adhesive 15 in the direction opposite to the arrow b2 is small. Therefore, when the outer panel 11 is hemmed, the adhesive 15 does not protrude from the end portion 11a of the outer panel 11. That is, the trouble of wiping off the adhesive 15 can be saved.

  In the vehicle door structure according to the present invention, as shown in FIG. 4, the pool-shaped portion 33 includes a panel body portion 34 of the outer panel 11, a separating portion 36 of the inner panel 12, and a folded portion 37 of the inner panel 12. However, the present invention is not limited to this, and includes a protrusion formed on the inner panel or the outer panel, a wall portion or a regulating member that is formed separately and restricts the flow of the adhesive. Also good.

  The vehicle door structure according to the present invention is suitable for use in passenger cars such as sedans and wagons.

It is a top view of the door panel which employ | adopted the door structure of the vehicle which concerns on this invention. FIG. 2 is an enlarged view of part 2 of FIG. 1. FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. FIG. 4 is a sectional view taken along line 4-4 of FIG. It is explanatory drawing which shows the difference in filling with the adhesive agent by the cross-sectional shape of the door structure of a vehicle. It is explanatory drawing which shows the difference in the application position of the adhesive agent by the cross-sectional shape of the door structure of a vehicle. It is a figure explaining the basic composition of the door structure of the conventional vehicles.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Outer panel, 12 ... Inner panel, 14 ... Drain hole, 14a ... Edge part, 30 ... Vehicle door structure, 31 ... Peripheral part, 32 ... Hemming process part, 33 ... Reservoir-shaped part, 36 ... Separation part, 37 ... turnback part.

Claims (2)

It has an outer panel (11) disposed on the outer side of the vehicle and an inner panel (12) disposed on the inner side of the vehicle, and the outer panel (11) is subjected to hemming so that the peripheral portion of the inner panel (12). A vehicle door structure including a hemming portion (32) for coupling (31),
A reservoir-shaped part (33) formed adjacent to the hemming part (32) and filled with an adhesive (15) is provided in the gap between the outer panel (11) and the inner panel (12),
The pool portion (33) includes the outer panel (11), a separation portion (36) formed on the inner panel (12) and extending from the peripheral edge portion (31) in a direction away from the outside of the vehicle, The inner panel (12) is formed continuously from the separation portion (36) and is formed of a folded portion (37) formed gradually approaching in a substantially vertical direction,
An extension line (C1) of the inner surface (11b) of the outer panel (11) and a substantially extension line (C2) of the inner surface (36a) of the separation part (36) are set at an acute angle, and the extension line (C1) and the turn-back are set. Set substantially parallel to the substantially extended line (C3) of the inner surface (37a) of the portion (37),
In the inner panel (12), a portion continuing from the folded portion (37) on the side opposite to the separating portion (36) is formed away from the outside of the vehicle,
A drain hole (14) is formed in at least a part of the pool-shaped part (33),
The outer panel (11) and the inner panel (12) are made of metal different from each other.   The vehicle door structure according to claim 1, wherein an edge portion (14a) formed below the drain hole (14) is located at the separation portion (36).

Images