JP7162408B2 - side door structure - Google Patents

Description

The present invention relates to a vehicle side door structure.

BACKGROUND ART A vehicle door frame structure disclosed in Patent Document 1 is known as a vehicle side door structure. The vehicle door frame structure of Patent Document 1 has a side door having an inner door panel and an outer door panel, and a locking device arranged between the inner door panel and the outer door panel. A door trim is assembled to the inner side of the door inner panel. An opening is formed in front of the vehicle from the door inner panel lock device.

JP 2016-144979 A

When an external force that causes the door inner panel to deform rearward acts on the side door from the front side of the vehicle due to a frontal collision of the vehicle, the door trim may be deformed along with the deformation of the door inner panel. A door trim generally has a housing portion that is housed between an opening of a door inner panel and a door inner panel and a door outer panel in order to increase the space in the vehicle compartment. When the door inner panel or door trim is deformed, the accommodating portion is deformed or displaced rearward. At that time, there is a risk that the accommodation portion will come into contact with the opening edge of the opening, deforming the opening edge of the door inner panel toward the door outer panel side. If the door lock device is arranged near the opening edge, the opening edge contacts the door lock device. If the door lock device is damaged by this contact, the side door cannot be unlocked.

One of the objects of the present invention is to provide a side door structure that can prevent damage to a door lock device when an external force that deforms the door trim is applied from the front or rear side of the vehicle with a simple structure. be.

(1) A side door structure according to one aspect of the present invention includes:
a side door body having a door inner panel and a door outer panel;
a door trim that covers the inner side of the door inner panel;
a door lock device disposed between the door inner panel and the door outer panel for locking the side door body;
The door inner panel is
a facing area facing the door lock device;
and an opening provided in one of the front and rear of the vehicle in the facing area,
The door trim has an accommodation portion that is accommodated between the door inner panel and the door outer panel from the opening,
At least one of the door inner panel and the door trim is formed by deformation of the door trim due to an external force from the front side or the rear side of the vehicle, and the opening edge of the facing area abuts against the accommodating portion, thereby causing the facing area to move. It has a deformation inducing part that deforms so as to be separated from the door lock device.

(2) As one form of the side door structure,
The deformation inducing portion protrudes between the door inner panel and the door outer panel from the outer side surface of the vehicle in the accommodating portion, and the opening edge of the opposing region is deformed by the contact between the accommodating portion and the opening edge. For example, it has a stop portion that restricts outward movement.

(3) As one form of the side door structure,
The deformation-inducing portion may include a bent portion that is locally provided in the facing region and bends the facing region so as to protrude inward of the vehicle.

The side door structure of (1) above has a simple configuration including a deformation inducing portion, and even if an external force that deforms the door trim acts on the side door structure from the front or rear side of the vehicle, the door lock device will not function. Damage can be prevented. This is because the deformation inducing portion deforms the opposing region of the door inner panel so as to separate it from the door lock device, thereby suppressing contact between the opposing region of the door inner panel and the door lock device. Therefore, the side door body can be unlocked. In this way, since it is possible to suppress damage to the door lock device with a simple structure, in order to increase the rigidity of the door inner panel so that the door trim is not deformed, the thickness of the door inner panel may be increased, or the door inner panel may be provided with a separate It is not necessary to provide a reinforcing material. Therefore, an increase in weight, an increase in cost, and a decrease in productivity are less likely to occur.

In the side door structure of (2) above, when an external force that deforms the door trim acts on the side door structure from the front or rear side of the vehicle, the stop portion prevents the opening edge of the opposing region from moving to the outside of the vehicle. By restricting, it is easy to reliably prevent contact with the door lock device in the opposing area.

In the side door structure of (3) above, when an external force that deforms the door trim acts on the side door structure from the front side or the rear side of the vehicle, the bent portion is bent toward the inside of the vehicle. It is easy to reliably prevent contact with the door lock device. In addition, it is easy to form the bent portion.

FIG. 3 is a side view schematically showing a state in which the door outer panel of the side door structure according to Embodiment 1 is removed; FIG. 2 is a cross-sectional view of the side door structure shown in FIG. 1 cut along the (II)-(II) cutting line and schematically showing the state before an external force acts from the front; FIG. 2 is a cross-sectional view showing a state of the side door structure shown in FIG. 1 cut along the (II)-(II) cutting line and schematically showing a state when an external force acts from the front; FIG. 11 is a cross-sectional view schematically showing a state in which an external force acts from the front in a conventional side door structure;

Embodiment 1 of the side door structure of the present invention will be described below with reference to FIGS. 1 to 3. FIG. The same reference numerals in the drawings indicate the same names. In the drawing, "FR" indicates the front of the vehicle, "RR" the rear, "LH" the left, "RH" the right, "UP" the top, and "LWR" the bottom. "OUT" indicates the outside of the vehicle, and "IN" indicates the inside of the vehicle.

<<Embodiment 1>>
[Side door structure]
A side door structure 1 according to Embodiment 1 includes a side door body 2, a door trim 3 that covers the interior side of the side door body 2, and a door lock device 4 that locks the side door body 2 (Fig. 1). The side door body 2 has a door inner panel 21 and a door outer panel (not shown). FIG. 1 shows the side door structure 1 viewed from the outside of the vehicle with the door outer panel of the side door body 2 removed. The door lock device 4 is arranged between the door inner panel 21 and the door outer panel. The door inner panel 21 has a facing area 211 (FIG. 2) facing the door lock device 4, and an opening 212 (FIGS. 1 and 2) provided in the facing area 211 at either the front or the rear of the vehicle. The door trim 3 has an accommodation portion 31 that is accommodated between the door inner panel 21 and the door outer panel from the opening 212 . One of the features of this embodiment is that the deformation inducing portion 5 deforms the opposing region 211 away from the door lock device 4 when an external force that deforms the door trim 3 acts from the front or rear side of the vehicle. The point is that at least one of the door inner panel 21 and the door trim 3 has it. A detailed description will be given below.

[Side door body]
The side door body 2 opens and closes the left and right door openings (not shown) of the vehicle (FIG. 1). The side door body 2 may be a side door body on the front side of the vehicle or may be a side door body on the rear side. The side door body 2 is of a hinge type in this example, and is rotatably fixed to a portion (for example, A pillar lower or B pillar) that forms the front side edge of the door opening of the vehicle via the hinge. not shown). In FIG. 1, the side door body 2 indicates the side door body 2 on the front right side of the vehicle. Note that the side door main body 2 may be of a sliding type provided on the left and right rear sides of the vehicle.

The side door body 2 has a door inner panel 21 and a door outer panel, and is formed in a hollow shape with a space provided between the door inner panel 21 and the door outer panel. A door lock device 4 and the like are arranged in this space. The door inner panel 21 is arranged inside the vehicle from the door lock device 4 , and the door outer panel is arranged outside the door lock device 4 . The door inner panel 21 and the door outer panel are made of plate material.

The door inner panel 21 has a facing area 211 and an opening 212 . The facing area 211 faces the door lock device 4 . The opening 212 is provided on the front side or the rear side of the vehicle in the facing area 211 . The positional relationship between the opposing region 211 and the opening 212 along the longitudinal direction of the vehicle can be appropriately selected according to whether the side door body 2 is of the hinge type or the slide type. This is because the location of the door lock device 4 can be appropriately selected according to whether the side door main body 2 is of the hinge type or the slide type, although the details will be described later. In this example, the positional relationship between the facing area 211 and the opening 212 is such that on the vehicle rear side of the side door body 2 , the facing area 211 is on the rear side and the opening 212 is on the front side. This opening 212 corresponds to the position of the armrest.

[Door trim]
The door trim 3 is a member that covers the inside of the vehicle of the door inner panel 21 . The door trim 3 has a housing 31 (Fig. 2). The accommodation portion 31 is accommodated between the door inner panel 21 and the door outer panel from the opening 212 of the door inner panel 21 . The accommodating portion 31 is formed in a convex shape protruding outwardly of the vehicle. The concave portion formed on the convex inner side of the vehicle can widen the interior space of the vehicle (the space of the armrest portion).

[Door lock device]
The door lock device 4 locks the side door body 2 to the vehicle body. The location of the door lock device 4 can be appropriately selected according to whether the side door body 2 is of the hinge type or the slide type. In the front or rear hinge type side door body 2, when the hinge for fixing the side door body 2 to the vehicle body is on the front side, the door handle is provided on the side door body 2 on the rear side of the vehicle, A door lock device 4 is provided on the rear side of the vehicle in the side door body 2 . In the case of the rear sliding type side door body 2, the door handle is provided on the side door body 2 on the front side of the vehicle, and the door lock device 4 is provided on the side door body 2 on the front side of the vehicle. The positional relationship between the door lock device 4 and the opening 212 along the longitudinal direction of the vehicle is either the front or the rear of the vehicle at the opening 212 . For example, when the door lock device 4 is provided on the rear side of the vehicle in the side door body 2 , the location of the door lock device 4 may be the rear of the vehicle at the opening 212 . When the door lock device 4 is provided on the front side of the vehicle in the side door body 2 , the location of the door lock device 4 may be the front side of the vehicle in the opening 212 . In this example, the door lock device 4 is arranged on the vehicle rear side of the side door main body 2 on the vehicle rear side of the opening 212 .

[Deformation induction part]
The deformation inducing portion 5 moves the facing region 211 away from the door lock device 4 by contact between the housing portion 31 and the opening edge 213 of the facing region 211 due to deformation of the door trim 3 due to external force from the front side or the rear side of the vehicle. Deform to separate. The deformation inducing portion 5 is provided on at least one of the door trim 3 and the door inner panel 21 . For example, the deformation inducing portion 5 has at least one of a stop portion 51 and a bending portion 52 . The deformation inducing portion 5 of this example is composed only of the stop portion 51, but may be composed of only the bent portion 52, or may be composed of both the stop portion 51 and the bent portion 52. good.

(Stopping part)
The stop portion 51 restricts the opening edge 213 of the facing area 211 from moving to the outside of the vehicle due to the contact between the housing portion 31 and the opening edge 213 of the facing area 211 ( FIG. 2 ). Due to this contact, the stop portion 51 may bend the opposing region 211 so as to project inward of the vehicle. The stop portion 51 protrudes from the outer surface of the vehicle in the housing portion 31 of the door trim 3 so as to extend between the door inner panel 21 and the door outer panel. The projecting direction of the stop portion 51 is a direction toward the rear of the vehicle and toward the outside of the vehicle with respect to a line along the vehicle width direction. The opening edge 213 of the opposing region 211 is brought into contact with the stop portion 51 . Thereby, it is easy to deform the facing area 211 so as to separate it from the door lock device 4 .

The position where the stop portion 51 is formed is preferably a position that contacts the opening edge 213 that contacts the rear portion 32 when the accommodating portion 31 and the opening edge 213 of the facing region 211 are in contact with each other. That is, it is preferable that the stop portion 51 is formed on the outside of the housing portion 31 rather than at the intersection of the extension line extending in the vehicle length direction from the opening edge 213 and the housing portion 31 . By doing so, the opening edge 213 comes into contact with the rear portion 32 before the stop portion 51 does, and slides along the rear portion 32 toward the outside of the vehicle. is easy to operate. Furthermore, since the opening edge 213 is stopped by the stop portion 51 , it is easier to apply the load inward of the vehicle to the opposing region 211 . Therefore, it is easy to deform the facing area 211 so as to separate it from the door lock device 4 . The shape of the stop portion 51 is not particularly limited as long as the opening edge 213 can be stopped when the housing portion 31 and the opening edge 213 of the opposing region 211 are brought into contact with each other. The stop portion 51 is composed of a linear piece linearly protruding from the outer surface of the housing portion 31 .

(flexion)
The bending portion 52 is locally provided in the front-rear direction of the facing region 211 and bends the facing region 211 so as to protrude inward of the vehicle (indicated by a two-dot chain line within a dashed circle in FIG. 2). The bent portion 52 may be formed along the vertical direction of the opposing region 211 . The bent portion 52 may be configured by a thin portion, an uneven portion, a convex portion, or the like. The thin portion can be formed by a notch formed in at least one of the vehicle inner side and the outer side of the opposing region 211 . The cross-sectional shape of this notch may be V-shaped or U-shaped, for example. A thin portion formed by a notch having a V-shaped cross section formed on the inner side of the vehicle in the opposing region 211 is shown in the dashed circle in FIG. 2 . Although not shown in the drawings, the concave-convex portion may, for example, be configured so that the inner side of the vehicle is convex and the outer side of the vehicle on the opposite side is concave. Although illustration is omitted, the convex portion may be formed by forming a ridge such as a bead so as to protrude toward the inside of the vehicle. The number of bent portions 52 may be singular or plural.

[Behavior of facing area]
Mainly referring to FIG. 3 (as appropriate FIG. 2), the behavior of the side door structure 1 of this example when an external force (indicated by the white arrow in FIG. 3) acts from the front side of the vehicle will be described. FIG. 3 shows an outline of the side door structure 1 when an external force acts from the front side of the vehicle.

When the door inner panel 21 and the door trim 3 are deformed rearward by an external force acting from the front due to a frontal collision or the like, the housing portion 31 of the door trim 3 is displaced rearward and the housing portion 31 abuts the opening edge 213 of the facing area 211 . At this time, the opening edge 213 of the facing area 211 and the rear portion 32 of the door trim 3 are in sliding contact with each other, and the opening edge 213 of the facing area 211 and the stop portion 51 are in contact with each other. Then, the opening edge 213 of the opposing region 211 is brought into contact with the stop portion 51 . At this time, the movement of the opening edge 213 of the facing area 211 to the outside of the vehicle is restricted, and a load acts on the facing area 211 toward the inside of the vehicle, so that the facing area 211 protrudes toward the inside of the vehicle. flex. The bending of the facing area 211 separates the facing area 211 from the door lock device 4 .

4, the behavior of the side door structure without the deformation inducing portion 5 (FIG. 2) when an external force (indicated by the white arrow in FIG. 4) acts from the front side of the vehicle will be described. FIG. 4 shows an outline of the side door structure when an external force acts from the front side of the vehicle. As shown in FIG. 4 , when the housing portion 31 of the door trim 3 is displaced rearward in the same manner as described above and the housing portion 31 abuts the opening edge 213 of the opposing region 211 , the opening edge 213 is pushed outward by the housing portion 31 . Displaced, the opposing area|region 211 and the door lock device 4 contact.

[Effect]
The side door structure 1 according to the embodiment can provide the following effects.

(1) Even if an external force that deforms the door trim 3 acts on the side door structure 1 from the front side of the vehicle, the door lock device 4 does not function with a simple configuration that includes the stop portion 51 (deformation inducing portion 5). Damage can be prevented. The stop portion 51 restricts the movement of the opening edge 213 in the facing area 211 of the door inner panel 21 to the outside of the vehicle, and bends the facing area 211 so as to protrude toward the inside of the vehicle. Therefore, the facing area 211 can be separated from the door lock device 4 . Therefore, contact between the facing area 211 and the door lock device 4 can be suppressed. Therefore, the side door main body 2 can be unlocked.

(2) An increase in weight, an increase in cost, and a decrease in productivity are unlikely to occur. Since it is possible to suppress damage to the door lock device 4 with a simple configuration having the stop portion 51 (deformation inducing portion 5), the door inner panel 21 is provided with the door inner panel 21 in order to increase the rigidity of the door inner panel 21 so that the door trim 3 is not deformed. This is because there is no need to increase the plate thickness of the door inner panel 21 or to provide the door inner panel 21 with a separate reinforcing member.

The present invention is not limited to these examples, but is indicated by the scope of the claims, and is intended to include all modifications within the meaning and scope of equivalents of the scope of the claims. For example, the side door of the present invention may be used as a rear sliding type side door body. This configuration corresponds to the state in which the directions of "FR" and "RR" are reversed and the directions of "RH (OUT)" and "LH (IN)" are reversed in FIGS. In this case, damage to the door lock device can be prevented even if an external force that deforms the door trim acts from the rear due to a rear-end collision or the like.

REFERENCE SIGNS LIST 1 side door structure 2 side door body 21 door inner panel 211 facing area 212 opening 213 opening edge 3 door trim 31 housing portion 32 rear portion 4 door lock device 5 deformation inducing portion 51 stop portion 52 bending portion

Claims (1)

a side door body having a door inner panel and a door outer panel;
a door trim that covers the inner side of the door inner panel;
a door lock device disposed between the door inner panel and the door outer panel for locking the side door body;
The door inner panel is
a facing area facing the door lock device;
and an opening provided in one of the front and rear of the vehicle in the facing area,
The door trim has an accommodation portion that is accommodated between the door inner panel and the door outer panel from the opening,
At least one of the door inner panel and the door trim is formed by deformation of the door trim due to an external force from the front side or the rear side of the vehicle, and the opening edge of the facing area abuts against the accommodating portion, thereby causing the facing area to move. A side door structure having a deformation inducing portion that deforms away from the door lock device.

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