JP7176268B2 - vehicle side door - Google Patents

Description

The present invention relates to a vehicle side door.

For example, Patent Literature 1 discloses a door body composed of a door inner panel and a door outer panel. In Patent Document 1, an impact bar is provided as a reinforcing member in the door inner panel and the door outer panel. The impact bar disclosed in JP-A-2003-200002 is for side collision, extends in the longitudinal direction of the vehicle from the door front end to the door rear end, and is fixed to the door front end and the door rear end.

JP 2015-89769 A

According to the technique of Patent Document 1, it is considered possible to increase the rigidity of the door body by the impact bar. However, the impact bar of Patent Literature 1 is not specially devised for its shape. Therefore, when a load is applied to the door body from the lateral direction of the vehicle in the event of a side collision, deformation of the door cannot be stabilized. That is, the door cannot be deformed at a desired position. If the upper part of the door handle were to break, the handle would rotate in the opening direction, changing the distance between the handle and the latch. be.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle side door that facilitates deformation of the door at a desired position in the event of a side collision and prevents the door from opening in the event of a side collision. purpose.

In order to solve the above-described problems, a typical configuration of a vehicle side door according to the present invention is a vehicle side door including an outer panel that forms an outer surface and an inner panel that is arranged inside the outer panel and forms an inner surface. and an upper side that is arranged between the outer panel and the inner panel and extends in the longitudinal direction of the vehicle along the lower edge of the window opening to reinforce the outer panel and the inner panel. a reinforcing member, a door handle fixed to the outer panel, and a door latch disposed between the outer panel and the inner panel and connected to the door handle; The position is characterized by forming a first weakened portion that is weaker than the surroundings.

According to the present invention, it is possible to provide a vehicle side door that facilitates deformation of the door at a desired position in the event of a side collision and prevents the door from opening in the event of a side collision.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the vehicle provided with the side door for vehicles concerning a present Example. FIG. 2 is a detailed view of the side door of FIG. 1; Figure 3 is a detailed view of the upper reinforcing member of Figure 2; Figure 3 is a detailed view of the lower reinforcing member of Figure 2;

A vehicle side door according to an embodiment of the present invention includes an outer panel that forms an outer surface, and an inner panel that is arranged inside the outer panel and forms an inner surface. an upper reinforcing member arranged between the outer panel and the inner panel and extending in the longitudinal direction of the vehicle along the lower edge of the window opening to reinforce the outer panel and the inner panel; and a door latch arranged between the outer panel and the inner panel and connected to the door handle. A first weakened portion is formed.

According to the above configuration, the rigidity of the vehicle side door (hereinafter referred to as the side door) can be increased by the upper reinforcing member. Since the upper reinforcing member is formed with the first weakened portion, the upper reinforcing member deforms starting from the first weakened portion in the event of a side collision. As a result, the entire side door is also deformed starting from the vicinity of the first weakened portion. Therefore, it is possible to facilitate deformation of the side door at a desired position.

At this time, since the first weakened portion is formed at a position on the front side of the vehicle relative to the door handle and the door latch, it is possible to prevent deformation of the upper reinforcing member and thus the side door in the vicinity of the door handle and the door latch. Therefore, the positions of the door handle and the door latch do not change due to the deformation of the side door, and it is possible to prevent the side door from opening in the event of a side collision.

When the vehicle side door is opened and closed, the door handle rotates about a rotation axis in the vehicle front-rear direction, and the inner panel has a hole formed in at least one of the vehicle front side and the vehicle rear side of the first weakened portion. A front end or a rear end of the hole is arranged at a position close to the first weakened portion in the vehicle front-rear direction when viewed from the side.

According to such a configuration, a difference in rigidity occurs between the front end or the rear end of the hole and the surrounding area in the inner panel. Therefore, in the event of a side collision, the inner panel and the entire side door are deformed along the fold line extending in the vertical direction of the vehicle. As a result, the side door is deformed without applying load in the direction of rotation of the door handle, suppressing the occurrence of displacement that would cause the door latch to be released, making it possible to more reliably prevent the side door from opening in the event of a side collision. Become.

The vehicle side door includes a lower reinforcing member disposed between an outer panel and an inner panel and extending in a vehicle front-rear direction at a lower portion thereof to reinforce the outer panel and the inner panel. A second weakened portion, which is weaker than the surroundings, is formed at a position on the vehicle front side of the door latch.

By providing the lower reinforcing member in this way, it is possible to further increase the rigidity of the side door. Further, since the second weakened portion is formed in the lower reinforcing member at a position on the vehicle front side of the door handle and the door latch, the lower reinforcing member is also deformed on the vehicle front side of the door handle and the door latch. do. At this time, since the first weakened portion and the second weakened portion are formed in the upper reinforcing member and the lower reinforcing member, respectively, it is possible to reliably generate the fold line in the vertical direction.

The upper edge of the upper reinforcing member extends linearly in the vehicle front-rear direction, the lower edge of the upper reinforcing member has an inclined portion that inclines downward toward the rear of the vehicle. , the front end of the ramp. According to this configuration, the first weakened portion is provided at the lower edge of the upper reinforcing member. As a result, the upper reinforcing member has a larger change in shape at the lower edge and a smaller change in shape at the upper edge. Therefore, formation of sharp edges (sharp deformation) due to deformation of the panel or cracking of the trim near the upper edge of the upper reinforcing member, that is, near the lower edge of the window opening where the upper reinforcing member is arranged, is prevented, thereby ensuring the safety of the occupants. It is possible to improve the quality.

A lower edge of the upper reinforcing member has an upwardly recessed portion adjacent to the first weakened portion. Accordingly, since the recess functions as a weakened portion in the vicinity of the first weakened portion, it is possible to more effectively promote deformation of the upper reinforcing member starting from the first weakened portion.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in these examples are merely examples for facilitating understanding of the invention, and do not limit the invention unless otherwise specified. In the present specification and drawings, elements having substantially the same functions and configurations are denoted by the same reference numerals to omit redundant description, and elements that are not directly related to the present invention are omitted from the drawings. do.

FIG. 1 is a diagram for explaining a vehicle provided with a vehicle side door (hereinafter referred to as a side door 100) according to this embodiment, and illustrates a state in which the right side of a vehicle 100a is viewed from the side. As shown in FIG. 1, a side door 100 is arranged on the side of the vehicle. In this embodiment, the rear side door 100 of the two side doors arranged on the right side of the vehicle is exemplified, but the present invention is not limited to this. The present invention can also be applied to a side door on the right side of the vehicle or a side door on the left side of the vehicle.

FIG. 2 is a detailed view of the side door 100 of FIG. 1, illustrating a state in which the outer panel 110 has been removed from the side door 100. As shown in FIG. A side door 100 of this embodiment includes an outer panel 110 shown in FIG. 1 and an inner panel 120 shown in FIG. The outer panel 110 is a panel forming the outer surface of the side door 100 . The inner panel 120 is a panel that is arranged inside the outer panel 110 and constitutes the inner surface. As shown in FIG. 2, an upper portion of the inner panel 120 is formed with a window opening 120a.

As shown in FIG. 1, a door handle 102 used for opening and closing the door is fixed to the outer panel 110 . The door handle 102 rotates around a rotation axis in the vehicle front-rear direction when the side door 100 is opened and closed. As shown in FIG. 2, a door latch 104 connected to the door handle 102 is arranged between the outer panel 110 and the inner panel 120 . In this embodiment, the door handle 102 and the door latch 104 are arranged near the rear end of the side door 100 .

As shown in FIG. 2, side door 100 includes upper reinforcing member 130 arranged between outer panel 110 and inner panel 120 . Upper reinforcing member 130 extends in the vehicle front-rear direction along the lower edge of window opening 120 a to reinforce outer panel 110 and inner panel 120 . Thereby, the rigidity of the side door 100 can be increased by the upper reinforcing member 130 .

3 is a detailed view of the upper reinforcing member 130 of FIG. 2, FIG. 3(a) is an overall view of the upper reinforcing member 130, and FIG. 3(b) is a partially enlarged view of FIG. 3(a). is. As a feature of this embodiment, as shown in FIGS. 2 and 3(a), in the upper reinforcing member 130, a first fragile portion which is weaker than the surroundings is provided at a position on the front side of the vehicle relative to the door handle 102 and the door latch 104. A portion 132 is formed. As a result, in the event of a side collision, the upper reinforcing member 130 deforms starting from the first weakened portion 132 , and the side door 100 deforms starting from the vicinity of the first weakened portion 132 . Therefore, the deformation at the desired position of the side door 100 is facilitated.

At this time, since the first weakened portion 132 is formed at a position on the front side of the vehicle relative to the door handle 102 and the door latch 104, the upper reinforcing member 130 and the side door 100 are positioned away from the door handle 102 and the door latch 104. will be deformed in As a result, the deformed upper reinforcing member 130 and thus the side door 100 can be prevented from contacting the door handle 102 and the door latch 104 . Therefore, it is possible to prevent the door handle 102 and the door latch 104 from changing their positions due to the deformation of the side door 100, and to prevent the side door 100 from opening in the event of a side collision.

Particularly in this embodiment, as shown in FIG. 3A, the upper edge 130a of the upper reinforcing member 130 extends linearly in the longitudinal direction of the vehicle, and the lower edge 130b of the upper reinforcing member 130 extends toward the rear of the vehicle. It has an inclined portion 130c which is inclined downward according to the . As a result, the upper reinforcing member 130 has a shape in which the width in the vertical direction increases toward the rear of the vehicle.

The first fragile portion 132 is arranged at the front end of the inclined portion 130 c of the lower edge 130 b of the upper reinforcing member 130 . As a result, the upper reinforcing member 130 has a larger change in shape at the lower edge 130b and a smaller change in shape at the upper edge. Therefore, sharp edges due to panel deformation or trim cracks near the upper edge 130a of the upper reinforcing member 130, that is, near the lower edge (see FIG. 2) of the window opening 120a where the upper reinforcing member 130 is arranged (see FIG. 2). ) can be prevented and the safety of the occupants can be enhanced.

Here, as shown in FIG. 2 , the inner panel 120 is formed with holes (a front side hole 122 a and a rear side hole 122 b ) on the vehicle front side and the vehicle rear side of the first weakened portion 132 . The front side hole 122a is a service hole for mounting the window regulator 106 for raising and lowering the glass arranged in the window opening 120a. The rear hole 122b is a service hole for attaching the door latch 104 and the handle.

In this embodiment, the rear end 124a of the front hole 122a and the front end 124b of the rear hole 122b are arranged at positions close to the first weakened portion 132 in the vehicle front-rear direction when viewed from the side. By forming the holes (the front hole 122a and the rear hole 122b) in the inner panel 120 as described above, a difference in rigidity occurs between the front and rear ends of the holes and the surrounding area of the inner panel 120. FIG.

According to the above configuration, the inner panel 120 and thus the entire side door 100 are deformed along the fold line L1 (see FIG. 3) extending in the vertical direction of the vehicle in the event of a side collision. Therefore, the side door 100 can be deformed without generating a load in the direction of rotation of the door handle 102, the occurrence of displacement for releasing the door latch 104 is suppressed, and the side door 100 can be opened more reliably in the event of a side collision. can be prevented.

In this embodiment, the inner panel 120 is provided with a first bead shape 126 and a second bead shape 128 between the rear end 124a of the front hole 122a and the front end 124b of the rear hole 122b. A first bead shape 126 extends vertically between a rear end 124a of the front hole 122a and a front end 124b of the rear hole 122b, and a second bead shape 128 extends between a rear end 124a and a rear end 124b of the front hole 122a. It obliquely extends in the front-rear direction between the front end 124b of the hole 122b.

By providing the bead shape as described above, it is possible to further increase the rigidity of the inner panel 120 . The intersection point P of the first bead shape 126 and the second bead shape 128 is arranged between the front hole 122a and the rear hole 122b, so that the inner panel 120 can be reinforced in a well-balanced manner.

In this embodiment, the inner panel 120 has holes (front side hole 122a and rear side hole 122b) formed in the vehicle front side and the vehicle rear side of the first weakened portion 132, respectively. not something to do. If there is no inconvenience in assembly work, a configuration in which a hole is formed only in either the vehicle front side or the vehicle rear side of the first fragile portion 132 may be employed. In this case, by bringing either the rear end 124a of the front hole 122a or the front end 124b of the rear hole 122b closer to the first fragile portion 132, the above-described effects can be obtained.

As shown in FIG. 3, a lower rib 134 is formed on the lower edge 130b of the upper reinforcing member 130, and the lower rib 134 is recessed upward at a position close to the first weakened portion 132. A recess 136 is formed. Thereby, the concave portion 136 functions as a weak portion in the vicinity of the first weak portion 132 . Therefore, it is possible to more effectively promote deformation of the upper reinforcing member 130 starting from the first weak portion 132 .

Please refer to FIG. 2 again. As shown in FIG. 2 , the side door 100 includes a lower reinforcing member 140 arranged between the outer panel 110 and the inner panel 120 in addition to the upper reinforcing member 130 described above. Lower reinforcing member 140 extends in the vehicle front-rear direction under outer panel 110 and inner panel 120 to reinforce outer panel 110 and inner panel 120 .

FIG. 4 is a detailed view of the lower reinforcing member 140 of FIG. As a feature of this embodiment, as shown in FIGS. 2 and 4, in the lower reinforcing member 140, a second weakened portion 142 which is weaker than the surroundings is provided at a position on the front side of the vehicle relative to the door handle 102 and the door latch 104. is formed. Accordingly, in the event of a side collision, the lower reinforcing member 140 deforms starting from the second weakened portion 142 , and the side door 100 deforms starting from the vicinity of the second weakened portion 142 . Therefore, the deformation at the desired position of the side door 100 is facilitated.

In particular, in this embodiment, the upper reinforcing member 130 is formed with the first weakened portion 132 and the lower reinforcing member 140 is formed with the second weakened portion 142 . As a result, the inner panel 120 and the side door 100 at the time of the side collision are deformed along the broken line L2. Therefore, it is possible to reliably generate the fold lines in the vertical direction described above.

As shown in FIG. 4, in this embodiment, the lower reinforcing member 140 also has an upper edge 140a that extends linearly in the longitudinal direction of the vehicle, and a lower edge 140b that slopes downward toward the rear of the vehicle. It has an inclined portion 140c. The second weakened portion 142 is arranged at the front end of the inclined portion 140c of the lower edge 140b of the lower reinforcing member 140. As shown in FIG. As a result, formation of sharp edges (sharp deformation) due to deformation of the panel or cracking of the trim near the upper edge 140a of the lower reinforcing member 140 can be prevented, and the safety of the occupant can be improved.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is obvious that a person skilled in the art can conceive of various modifications or modifications within the scope described in the claims, and these also belong to the technical scope of the present invention. Understood.

INDUSTRIAL APPLICATION This invention can be utilized for the side door for vehicles.

Reference Signs List 100 Side door 100a Vehicle 102 Door handle 104 Door latch 106 Window regulator 110 Outer panel 120 Inner panel 120a Window opening 122a Front hole 122b Rear hole 124a... rear end 124b... front end 126... first bead shape 128... second bead shape 130... upper reinforcing member 130a... upper edge 130b... lower edge 130c... sloped portion 132... first fragile portion , 134...Lower rib, 136...Recessed part, 140...Lower reinforcing member, 140a...Upper edge, 140b...Lower edge, 140c...Slanted part, 142...Second weak part

Claims (4)

A vehicle side door including an outer panel forming an outer surface and an inner panel arranged inside the outer panel and forming an inner surface,
a window opening formed in the upper portion of the inner panel;
an upper reinforcing member disposed between the outer panel and the inner panel and extending in the longitudinal direction of the vehicle along the lower edge of the window opening to reinforce the outer panel and the inner panel;
a door handle fixed to the outer panel;
a door latch disposed between the outer panel and the inner panel and connected to the door handle;
A first weakened portion weaker than surroundings is formed at a position of the upper reinforcing member on the front side of the vehicle relative to the door handle and the door latch ,
The vehicle side door includes a lower reinforcing member disposed between the outer panel and the inner panel and extending in the vehicle front-rear direction below the outer panel and the inner panel to reinforce the outer panel and the inner panel,
A second weakened portion weaker than surroundings is formed at a position of the lower reinforcing member on the front side of the vehicle relative to the door handle and the door latch,
The first weakened portion is formed near the center of the upper reinforcing member in the vehicle front-rear direction,
The vehicle side door , wherein the second fragile portion is formed forward of a center of the lower reinforcing member in the vehicle front-rear direction . The door handle rotates around a rotation axis in the vehicle front-rear direction when the vehicle side door is opened and closed,
The inner panel has a hole formed in at least one of the vehicle front side and the vehicle rear side of the first weakened portion,
2. The vehicle side door according to claim 1, wherein a front end or a rear end of the hole is arranged at a position close to the first weakened portion in the vehicle front-rear direction when viewed from the side. The upper edge of the upper reinforcing member extends linearly in the vehicle front-rear direction,
The lower edge of the upper reinforcing member has a sloped portion that slopes downward toward the rear of the vehicle,
3. The vehicle side door according to claim 1, wherein the first weakened portion is a front end of the inclined portion. 4. The vehicle side door according to any one of claims 1 to 3 , wherein the lower edge of the upper reinforcing member has an upwardly recessed recess at a position close to the first weakened portion. .

Images