JP3196477B2 - Structure of car door opening - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening structure for a motor vehicle, and more particularly, to a structure in which two flanges of an outer panel and two flanges of an inner panel are overlapped and joined to form a closed cross section. The present invention relates to a structure in which two joined flanges on one side of a structural member are arranged in a door opening.

[0002]

2. Description of the Related Art A pillar of a vehicle body is formed into a closed cross section by an outer panel and an inner panel, and an inner surface of an inner panel including a flange is covered with a protector.
There is a pillar structure for absorbing impact energy in which an impact force absorbing member is disposed in a space defined by a protector and an inner panel (Japanese Patent Publication No. 50-25690).

[0003]

In the pillar structure,
To secure the deformation stroke of the impact-absorbing member, the pillar thickness becomes small, and to secure both the deformation stroke and the pillar thickness, the vehicle compartment becomes narrow.

When an impact load is applied to an automobile, the load or impact energy received by the occupant increases in accordance with the rigidity of the portion of the vehicle body with which the occupant comes in contact. Therefore, two flanges of the outer panel and two flanges of the inner panel are provided. The opposing members are overlapped and joined to each other, and the rigidity of a portion where two flanges are overlapped among structural members formed into a closed cross-sectional shape is particularly large compared to the rigidity of the other portions. If the rigidity to the occupant can be reduced, it can be expected that the impact energy applied to the occupant is reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle including a pillar and other structural members having substantially the same thickness, that is, the cross-sectional size of the structural members, without substantially changing the size of the cross-section and without affecting the passenger compartment. An object of the present invention is to provide a structure of a door opening of an automobile which can reduce energy.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a structure in which two flanges of an outer panel and two flanges of an inner panel which are opposed to each other are overlapped and joined to each other to form a closed sectional shape on one side of a structural member. A structure in which two joined flanges are arranged in a door opening, wherein at least one root of the two flanges located in the door opening does not substantially change the size of a closed cross section of the structural member. A rigidity reducing part is provided.

[0007] The present invention also provides two flanges on one side of a structural member having a closed cross-sectional shape in which two opposite flanges of an outer panel and two flanges of an inner panel are overlapped and joined. Is disposed in the door opening, wherein the flange of the inner panel located at the door opening has a bulging portion obtained by expanding a portion of the flange excluding a joint portion inward in the width direction of the vehicle body. It is provided.

The present invention also relates to two flanges joined on one side of a structural member having a closed cross-sectional shape in which two opposing flanges of an outer panel and two flanges of an inner panel are overlapped and joined. Is disposed in the door opening, and a notch is provided in a portion of the flange except for a joint between the two flanges located in the door opening.

The present invention also relates to two flanges joined to one side of a structural member having a closed cross-sectional shape in which two opposite flanges of an outer panel and two flanges of an inner panel are overlapped and joined. In the opening for the door, wherein the bent end portion of the outer panel positioned at the opening for the door is bent to cover the edge of the flange, the inner panel positioned at the opening for the door. It is formed on the flange.

[0010]

According to the invention in which the rigidity decreasing portion which does not substantially change the size of the closed section of the structural member is provided at the root of the flange, the flange is deformed by the rigidity decreasing portion and absorbs the load, so that the occupant can take a load. Even if it collides with the flange, the impact energy received from the flange is reduced.

The rigidity reducing portion is formed so that the flange is not deformed by the load applied to the structural member during normal running, but the flange is easily deformed when a load larger than the load applied during normal running is applied. be able to. This can increase the load absorbing capacity of the flange.

According to the invention in which the bulging portion is provided on the flange on one side of the inner panel, the possibility that the occupant hits the bulging portion and hits the flange is reduced. As a result, a load smaller than the load applied from the flange is applied.

According to the invention in which the notch is provided in a portion other than the joint between the two flanges on one side, the flange itself is easily deformed, and the load absorbing capacity can be enhanced. Further, the weight of the automobile can be reduced.

According to the invention in which the bent end portion bent to cover the edge of the flange of the outer panel is formed on the flange of the inner panel, the bent end portion of the flange of the inner panel is replaced by the occupant instead of the edges of the two flanges. Therefore, the local load due to the edge becomes a dispersed load due to the surface contact. Thereby, the impact energy applied to the occupant can be reduced.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an automobile door opening according to the present invention is as follows.
As shown in FIG. 16, it is preferable to implement the present invention in the upper part 21 of the front body opening 22 and the rear door opening 24 of the vehicle body 20 which is hatched. Opening 2
The front pillars 2 and 24 have front pillars 2 as shown in FIG.
6, roof side rail 28 as shown in FIG.
There is a center pillar 30 and other structural members as shown in FIG. 5, and a flange of each structural member is located at the opening as described later.

In the embodiment shown in FIG. 13, the front pillar 26 has two flanges 33, 3 and 3 of the outer panel 32.
4 and two flanges 37, 38 of the inner panel 36
And the two flanges 41, 42 of the reinforcing panel 40 are connected to the flanges 33, 37.
And flanges 34 and 38, respectively, and are spot-welded and joined to form a closed cross-sectional shape. The joined flanges 34, 42, 38 on one side of the front pillar 26 are located in the door opening 22.

Around the front pillar 26, a trim 4
4. Windshield glass 46, door glass 53, weather strips 48, 50, door 52, etc. are attached and arranged in a manner known per se.

In the embodiment shown in FIG. 14, the roof side rail 28 is provided with two flanges 5 of the outer panel 54.
5, 56 and two flanges 5 of the inner panel 58
9 and 60 are overlapped with each other, and the two flanges 63 and 64 of the reinforcing panel 62 are connected to the flange 5.
5, 59 and the flanges 56, 60 are respectively interposed and spot-welded and joined to form a closed cross section. The joined flanges 55, 63, 59 on one side of the roof side rail 28 are located in the door opening 22.

Around the roof side rail 28, a weather strip 50, a door 52, a drip channel 6
6, the weather strip 68, the roof panel 70, the trim 72, etc., are mounted and arranged in a manner known per se.

In the embodiment shown in FIG. 15, the center pillar 30 has two flanges 75, 76 of the outer panel 74.
And the two opposite flanges 79 and 80 of the inner panel 78 are overlapped with each other.
2, two flanges 83 and 84 are interposed between the flanges 75 and 79 and the flanges 76 and 80, respectively, and joined by spot welding to form a closed cross-sectional shape.
Flanged joint 7 on one side of center pillar 30
5, 83, 79 are located in the door opening 22, and the other side joined flanges 76, 84, 80 are located in the door opening 24.

Around the center pillar 30, weather strips 86, 88, doors 52, doors 90, trims 92 and the like are mounted and arranged in a manner known per se.

An upper portion of the flanges 34, 42 and 38 located at the opening 22 of the front pillar 26, a flange 55 located at the opening 22 of the roof side rail 28,
63, 59, and furthermore, the upper portions of the flanges 75, 83, 79 located at the opening 22 of the center pillar 30 or the upper portions of the flanges 76, 84, 80 located at the opening 24 may have a large impact energy or Since the load is applied to the occupant, a structure for reducing the load is selectively incorporated as described below. The structure for reducing the load on the flanges of the outer panel, the inner panel, and the reinforcing panel of the embodiment described below can be implemented on the flanges of the outer panel, the inner panel, and the reinforcing panel of each of the structural members.

FIGS. 1 to 3 show an embodiment in which a rigidity reducing portion is provided at least at the root of at least one of the flanges located at the opening.

In the structural member 100 shown in FIG. 1, the flange 103 of the outer panel 102 and the inner panel 104
Of the reinforcing panel 106 and the flange 105 of the reinforcing panel 106
7, a hole 108 is formed at the root of the flange 105 of the inner panel 104 to reduce the rigidity of the flange.
The holes 108 are, for example, elongated holes having a length of several millimeters to at most 10 millimeters, and a plurality of holes 108 are provided at a pitch of about 10 to 20 millimeters.

The hole 108 is used instead of or together with the flange 105 of the inner panel 102.
It can be provided at the root of the flange 103 of the outer panel 102 or at the root of the flange 107 of the reinforcing panel 106. When the hole 108 is at the root of the flange 105 of the inner panel 104 as shown in the figure, it is possible to prevent water from entering the inside of the structural member.

In the structural member 110 shown in FIG. 2, the flange 103 of the outer panel 102 and the inner panel 104
Of the reinforcing panel 106 and the flange 105 of the reinforcing panel 106
7, a bead is provided at the root of the flange 105 of the inner panel 104, that is, a recess 112 is formed along the flange 105 to reduce the rigidity of the flange. The recess 112 has a width and a depth of several millimeters, for example.

The recess 112 can be provided at the base of the flange 103 of the outer panel 102 instead of, or together with, the flange 105 of the inner panel 104. Further, as shown by the virtual line in FIG.
A recess 1 at the root of the three flanges 103, 107, 105
13 can also be provided. With the form of the recess 112 in FIG. 2, it can be considered that the apparent width of the flange 105 has increased, and on the other hand, the rigidity of the structural member 110 has been increased,
On the other hand, the flange can be easily deformed.

In the structural member 114 shown in FIG. 3, the outer panel 116 has a flange 117, but the inner panel 118 and the reinforcing panel 120 cut the flange, and the cut portion is fillet welded 122 to the flange 117 of the outer panel 116. And reduce the number of flanges to make it easier to deform.

In the structural member 122 shown in FIG. 4, the flange 125 of the outer panel 124 and the inner panel 126
Of the reinforcing panel 128 and the flange 12 of the reinforcing panel 128
9 is inclined at a predetermined angle α toward the outside in the width direction of the vehicle body. For example, as shown in FIG. 13, the flanges 34, 42, and 38 located at the door opening are generally parallel to the door glass 53 disposed on the door 52 in a general structure. This is the mode indicated by the virtual line of No. 4. In contrast, in the embodiment of FIG. 4, the flanges 125, 129,
By inclining 127 at an angle α, the flange is easily deformed.

In the structural member 130 shown in FIG. 5, the flange 133 of the outer panel 132 and the inner panel 134
Of the reinforcing panel 136 and the flange 135 of the reinforcing panel 136
7 is joined. Flange 1 of inner panel 134
Reference numeral 35 denotes a bulging portion 138 in which only the joint is brought into contact with the flange 137, and the portion other than the joint is bulged inward in the width direction of the vehicle body. The presence of the bulge 138 expands the energy absorption region.

FIGS. 6 to 9 show an embodiment in which notches are provided in portions other than the joining portions of the flanges.

In the structural member 140 shown in FIG. 6 and the structural member 150 shown in FIG. 7, the flange 143 of the outer panel 142 and the flange 145 of the inner panel 144 are provided.
And the flange 147 of the reinforcing panel 146 are joined by spot welding. Then, a triangular cutout 148 is provided at a portion of the flange of the structural member 140 other than the joint, and a notch 152 in the form of a circular hole is provided at a portion of the flange other than the joint of the structural member 150.

In the structural member 160 shown in FIG. 8 and the structural member 170 shown in FIG. 9, the flange 163 of the outer panel 162 and the flange 165 of the inner panel 164 are provided.
And the flange 167 of the reinforcing panel 166 are joined by spot welding. The trapezoidal notch 1 is formed in the portion of the reinforcing panel 146 except for the joint of the structural member 160.
68 are provided, and trapezoidal notches 172 are provided in portions of the inner panel 164 and the reinforcing panel 166 except for a joint portion of the structural member 170.

In the structural member 180 shown in FIG. 10, the flange 183 of the outer panel 182 and the inner panel 18
The fourth flange 185 is joined by spot welding. Then, the bent end portion 1 bent so as to cover the edge 186 of the flange 183 of the outer panel 182
87 is formed on the flange 185 of the inner panel 184.

The edge 186 of the outer panel flange 183 is bent at the bent end 1 against the load in the direction A from the occupant.
87, and the occupant hits the bent end 187. The edge 188 of the bent end 187 is
There is no problem because it does not face the load in the A direction. In other words,
The shape of the bent end 187 is determined so that the edge 188 of the bent end 187 does not hit the occupant.

In the structural member 190 shown in FIGS. 11 and 12, the flange 193 of the outer panel 192, the flange 195 of the inner panel 194, and the flange 197 of the reinforcing panel 196 are joined by spot welding.
The three flanges 193, 197, 195 are directed outward in the width direction of the vehicle body. Therefore, A
When a load in the direction is applied, the occupant comes into contact with the inner panel 194 because the edge of the flange faces outward.

As shown in FIG. 11, when the door 52 is provided with a door frame and the door glass 53 is supported by the door frame, flanges 193, 197 and 195 are provided.
As a result, there is a possibility that the sealing surface of the weather strip 50 becomes insufficient. In this case, another weather strip 200 is arranged at the opening of the door. FIG.
In the case of the type having no frame, since the sealing of the door glass 53 is performed by the rail weather strip 202, there is no shortage of the sealing surface.

According to the embodiment shown in FIGS. 11 and 12, the space 2 near the flange between the outer panel 192 and the inner panel 194 can be seen as compared with the embodiment shown in FIG.
04 has a large cross-sectional area. Therefore, by turning the flange outward, the energy absorption region can be expanded.

When the structure shown in FIGS. 11 and 12 is applied to the roof side rail, the groove is formed by the flange 193 and the outer panel 192 because the flange faces upward. Therefore, it can be used to prevent raindrops.

In the above embodiment, except for the embodiment shown in FIG. 10, all structural members are provided with reinforcing panels. The structural member may be formed in a closed cross-sectional shape by the outer panel and the inner panel, but the present invention may be implemented in the latter form. In this case, two flanges are located in the door opening.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a structure of a door opening of an automobile according to the present invention, wherein a is a sectional view and b is a perspective view.

FIG. 2 is a sectional view showing another embodiment of the structure of the automobile door opening according to the present invention.

FIG. 3 is a perspective view showing still another embodiment of the structure of the automobile door opening according to the present invention.

FIG. 4 is a cross-sectional view showing a structure of a door opening of an automobile.

5A and 5B show still another embodiment of the structure of the automobile door opening according to the present invention, wherein a is a sectional view and b is a perspective view.

FIG. 6 is a perspective view showing still another embodiment of the structure of the automobile door opening according to the present invention.

FIG. 7 is a perspective view showing still another embodiment of the structure of the automobile door opening according to the present invention.

FIG. 8 is a perspective view showing still another embodiment of the structure of the automobile door opening according to the present invention.

FIG. 9 is a perspective view showing still another embodiment of the structure of the automobile door opening according to the present invention.

FIG. 10 is a sectional view showing still another embodiment of the structure of the automobile door opening according to the present invention.

FIG. 11 is a sectional view showing a structure of a door opening of an automobile.

FIG. 12 is a cross-sectional view showing a structure of a door opening of an automobile.

FIG. 13 is a cross-sectional view of a structural member to which the structure of the automobile door opening according to the present invention can be applied, which is cut along line 13-13 in FIG.

FIG. 14 is a cross-sectional view of a structural member to which the structure of the automobile door opening according to the present invention can be applied, which is cut along line 14-14 in FIG. 16;

FIG. 15 is a cross-sectional view of a structural member to which the structure of the automobile door opening according to the present invention can be applied, which is cut along line 15-15 in FIG. 16;

FIG. 16 is a side view showing a part of an automobile which preferably has a structure of an automobile door opening according to the present invention.

[Explanation of symbols]

Reference Signs List 20 Automobile 22, 24 Door opening 26 Front pillar 28 Roof side rail 30 Center pillar 100, 110, 114, 122, 130, 140, 1
50 Structural member 160, 170, 180, 190 Structural member 32, 54, 74, 102, 116, 124, 132
Outer panels 142, 162, 182, 192 Outer panels 36, 58, 78, 104, 118, 126, 134
Inner panel 144, 164, 184, 194 Inner panel 34, 38, 5, 59, 75, 76, 79, 80, 10
3 Flange 105, 117, 125, 127, 133, 135, 1
43 Flange 145,163,165,183,185,193,1
95 Flange 108 Hole (reduced rigidity) 112 Depression (reduced rigidity) 138 Bulging 148, 152, 168, 172 Notch 187 Folded end

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tomoyuki Fukatsu 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (72) Inventor Atsushi Hiroshige 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation ( 72) Inventor Yasuhiro Sakakibara 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (56) References JP-A-4-38276 (JP, A) JP-A-5-338508 (JP, A) 3-25083 (JP, A) JP-A-58-116268 (JP, A) JP-A-4-224472 (JP, A) JP-A-3-68174 (JP, U) JP-A-4-104780 (JP, A) U) Japanese Utility Model Hei 4-43581 (JP, U) Japanese Utility Model Utility Model 5-26754 (JP, U) Japanese Utility Model Showa 63-152776 (JP, U) Japanese Patent Publication No. 50-25690 (JP, B2) (58) Survey Field (Int.Cl. ⁷ , DB name) B62D 25/04

Claims (4)

(57) [Claims] The two flanges of the outer panel and the two flanges of the inner panel which are opposed to each other are overlapped and joined to each other, and the two flanges joined to one side of a structural member having a closed cross section are used for a door. An automobile having a structure arranged in an opening, wherein a rigidity reducing portion that does not substantially change the size of a closed cross section of the structural member is provided on at least one root of the two flanges located in the door opening. Door opening structure. The two flanges of the outer panel and the two flanges of the inner panel which are opposed to each other are overlapped and joined to each other, and the two flanges joined to one side of a structural member having a closed cross section are used for a door. A structure arranged in an opening, wherein the flange of the inner panel located in the door opening is provided.
To the flange, excluding the joint,
The structure of an automobile door opening with a bulge that bulges inward . 3. The two flanges of one side of a structural member having a closed cross-sectional shape in which two opposed flanges of an outer panel and two flanges of an inner panel are overlapped and joined to each other, and are used for a door. A structure arranged in an opening, wherein a joint between the two flanges located in the door opening
The structure of the door opening of the car, which has a notch in the flange except for 4. The two flanges on one side of a structural member having a closed cross-sectional shape in which two opposing flanges of an outer panel and two flanges of an inner panel are overlapped and joined to each other for a door. A structure arranged in an opening, wherein the flange of the outer panel positioned in the door opening is provided.
Bent end to cover the edge of the flange
, Said of the inner panel positioned in the door opening
The structure of the car door opening formed in the flange .