JPH07125537A - Vehicle door - Google Patents

Abstract

PURPOSE: To optimize side collision strength and rigidity of a vehicle door. CONSTITUTION: In this vehicle door 15 having a frame structure and one or more front and rear or upper and lower frame members 26, 27, 28, 29 connected mutually, respectively, or a vehicle door having a shell structure and one or more outer member and inner member connected mutually, one or more oblique members 31 are provided, and the moblique members 31 are curved outwardly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door, in particular for motor vehicles, of a frame structure having one or more front and rear or upper and lower frame members which are connected to one another. It also relates to a shell-structured vehicle door having one or more outer and inner members connected to each other.

[0002]

BACKGROUND OF THE INVENTION Many vehicle doors of the above type are known, and the requirements imposed on vehicle doors are basically satisfied. However, improvements are desired with respect to the collision characteristics of vehicle doors. This is especially true for the strength and rigidity of vehicle doors during side collisions.

[0003]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to optimize the side impact strength and stiffness of vehicle doors.

[0004]

In order to achieve the above-mentioned object, a vehicle door according to the invention is characterized by the features of claim 1.
One or more diagonal members are provided, and these diagonal members are curved outward.

The use of one or more diagonal members below the closed window of a vehicle door significantly increases side impact and rigidity of the door. In this case, the collision characteristics are also greatly improved by the outwardly convex curvature.
This is because the curved diagonal member can absorb a load larger than that of the non-curved diagonal member and can be eliminated.

Further, in the structure of the present invention, the diagonal member is formed between the outer member and the inner member of the vehicle door in which the diagonal member is made of the frame member of the door frame or the shell structure. It is a good idea to be fixed at.

Here, the support node of the vehicle body cell means a node supported not only in the longitudinal direction of the vehicle but also in the transverse direction thereof. This is therefore true wherever the body cells have beam or brace material used for lateral reinforcement. In this case, at the time of a side collision, the vehicle or its door frame can directly release the load absorbed by the diagonal member to the vehicle body cell or support it by the vehicle body cell.

Further, in the configuration of the present invention, the driver's seat door,
That is, in the case of a front vehicle door, the diagonal members extend obliquely downward from the area of the upper hinge in the direction of the floor-side nodes of the B stanchions. Also, in the case of a rear vehicle door, it is convenient for the diagonal member to extend in the direction of the door lock of the vehicle door from a location in the vicinity of the floor side end of the B strut.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 schematically shows a vehicle body cell 1 of a 4-door type automobile. The vehicle body cell 1 has an A strut, a B strut and a C strut that are connected to each other by lateral reinforcements 2, 3 and 4 or 5, 6 and 7. Furthermore, roof side rails 8 and 9 and floor side rails 10 and 11 are provided.

Various columns A, B and C and lateral reinforcements 2 to
7 and roof side rails 8 and 9 or floor side rails 10 and 11 are connected to each other to form nodes. that time,
Nodes 12 at the floor end of the B stanchions, nodes 13 near the upper hinge 14 for the front vehicle door 15 and the rear vehicle door 1.
The node 16 near the door lock 17 of No. 8 is particularly important.

Further, what is important for forming the front vehicle door 15 is the node 1 of the vehicle body cell 1 at the lower end of the A column.
9 is a possible nodal point 20 at the height of the door lock 21 in the case of a two-door type vehicle according to the body cell 22 shown in FIG. In the latter case, behind the two seats, another lateral reinforcement 23 is provided parallel to the two lateral reinforcements 3 and 6 connecting the B stanchions.

In different vehicle cells according to different body cells and different embodiments, absolutely identical parts are designated with the same reference numerals.

FIG. 2 shows a door frame 25 of a front vehicle door 15 (driver's door) made of a frame structure. The door frame 25 includes a front frame member 26, a rear frame member 27, an upper frame member 28 and a lower frame member 29. Further, a horizontal frame member 30 and a diagonal member 31 are provided as a lower window frame member.

The various frame members 26-30 and the diagonal members 31 are connected to one another at the door node areas. In this case, the diagonal member 31 generally extends from the node 32 connecting the front frame member 26, the upper frame member 28, and the horizontal frame member 30 to the door frame in the area where the rear frame member 27 and the lower frame member 29 are joined. It extends to the node 33 forming the lower back corner of 25. Therefore, the diagonal member 31 of the front vehicle door 15 is directed from the front upper side to the rear lower side in the vehicle longitudinal direction.

Further, the nodes 32 and 33 of the door frame 25 are located at or near the support nodes 12 and 13 of the vehicle body cell 1. Therefore, in the case of a side collision, the end of the diagonal member 31 can be supported by a member that directly transfers the generated load to the support nodes 12 and 13 of the vehicle body cell 1.

In the completed vehicle door 15, the diagonal member 31
Is below the door skin 34, which is indicated by the dashed or dashed lines in FIGS. 3 and 4.

Comparing FIG. 1 and FIG. 2, the front vehicle door 1
It can be seen that the diagonal member 31 of No. 5 extends obliquely downward from the area of the upper hinge 14 to the floor-side node 12 of the B pillar of the vehicle body cell 1. In the case of the rear driver's door 18, the corresponding diagonal member 35 extends in the direction of the node 16 or the door lock 17 from a point near the floor side end of the B support or the node 12.

5 and 6 show the diagonal members 31 and frame members 26 and 27 between the A and B columns. Furthermore, in FIGS. 5 and 6, the side window 38 is shown.
The glass guide 37 for (FIG. 4) is filled in.

The diagonal members 31 are also each outside the glass guide 37, as also shown in FIG. In the other figures, the glass guide 37 is not shown for clarity.

Prior to a side impact, the diagonal member 31 exhibits an outwardly curved shape, as shown in FIG. In addition, there is play in the door frame 25 between the A and B columns.

During a side impact, the diagonal member 31 deforms, losing its initial curvature and extending straight. At this time, this deformation eliminates energy.

Based on the arrangement of the end portions of the diagonal member 31, when extended, it guides the load to the A and B columns and the floor of the vehicle. This is because if there is no play between the A and B struts at the end of the diagonal member 31, the diagonal member 31 will be supported at its end in the direction of the main load component and in the direction perpendicular thereto. Yes (Fig. 6).

FIG. 7 shows a vehicle door 41 having a shell structure composed of an outer member 42 and an inner member 43. A diagonal member 44 is provided between these members, as in the case of the vehicle door 15 having a frame structure.

In the case of the front vehicle door 41, the diagonal member 44 is also diagonally downward from the area of the upper hinge 14 (FIG. 1) in the direction of the floor-side node 12 of the B pillar or the rear lower corner 45 of the vehicle door 41. Extending to.

Similar to FIG. 4, FIG. 8 shows a schematic view of the vehicle door 41 seen in the direction of arrow b in FIG. Again, the diagonal member 44 is outside the glass guide of the side window 38,
It is between the outer member 42 and the inner member 43.

FIG. 9 shows the above-mentioned body cell 22 with lateral reinforcements 23 for a vehicle with two doors or two seats or for example a three seat type with a central engine.

Here, the diagonal member 51 is viewed in the vehicle longitudinal direction,
It also extends from the lower front to the upper rear, that is to say from the lower hinge 53 of the A-post to the door lock 21 in the area of the B-post. In this case, the ends 53 and 54 of the diagonal member 51
(FIG. 10) is approximately the nodes 19 and 20 of the vehicle body cell 22.
Therefore, the load absorbed by the vehicle body cell 22 can be guided to the nodes 19 and 20 almost as it is.

In a two-door type vehicle, the diagonal member can basically extend from the front side to the rear side in the vehicle longitudinal direction as shown in FIG.

Further, the door frame 60 of the vehicle door 61
Can have diagonal members 62 and 63 intersecting each other (FIG. 11).

Alternatively, the diagonal members 64 and 65 intersecting each other are provided between the outer member 66 and the inner member 67 of the door 68 having a shell structure according to FIG.

The use of diagonal members 62-65 intersecting each other further increases the strength and rigidity of the automobile door.

The fact that each of the diagonal members is curved outward and that the end portion of the diagonal member is located at the position of the supporting node of the vehicle body cell as much as possible is
It applies to all embodiments of the invention.

What has been described for the front vehicle door also applies in principle to the rear vehicle door. Therefore, the invention is not limited to the illustrated embodiments. The basic idea can be applied to other doors.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a body cell of a 4-door type automobile.

FIG. 2 is an enlarged schematic perspective view of a door frame of a front vehicle door.

FIG. 3 is a schematic diagram according to FIG. 2 with the door jacket implied by broken lines.

FIG. 4 is a schematic view seen in the direction of arrow a in FIG.

FIG. 5 is a plan view of the diagonal member before a load is applied.

FIG. 6 is a plan view according to FIG. 5 after a load is applied.

FIG. 7 is a schematic view of a front vehicle door having a shell structure according to FIG.

8 is a schematic diagram according to FIG. 4 of the vehicle door according to FIG. 7.

FIG. 9 is a schematic perspective view of a body cell of a two-door type automobile having a lateral coupling member between B struts at the height of a window frame.

10 is an enlarged schematic perspective view of a driver's seat door of a vehicle having a vehicle body cell according to FIG. 9. FIG.

FIG. 11 is a schematic perspective view of a door frame having two diagonal members.

FIG. 12 is a perspective view according to FIG. 11 of a vehicle door having a shell structure having two diagonal members.

[Explanation of symbols]

1, 22 Vehicle body cell 12, 13, 16, 20 Node 14, 53 Hinge 15, 18, 41, 52 Vehicle door 17, 21 Door lock 25 Door frame 26, 27, 28, 29, 30 Frame member 31, 35, 44 , 51, 62, 63, 64, 65 diagonal member 37 glass guide portion 42 outer member 43 inner member

Claims (7)

[Claims] 1. A frame-structured vehicle door having one or more front and rear or upper and lower frame members (26-30) respectively connected to each other, or one or more outsides also connected to each other. Member (4
2, 66) and an inner member (43, 67) in a vehicle door with a shell structure, one or more diagonal members (31, 3).
5, 44, 51, 62 to 65) are provided.
And these diagonal members (31, 35, 44, 51, 62
To 65) are curved outwardly. 2. The ends of the diagonal members (31, 35, 44) are
The frame members (26, 27, 2) of the door frame (25)
9) or vehicle doors made of shell construction (4
2. The vehicle door according to claim 1, which is arranged between the outer member (42) and the inner member (43) of 1) in the area of the support nodes (12, 13, 16, 20) or in the vicinity thereof. 3. A diagonal member (31, 35, 44, 51, 62)
Vehicle door according to claim 1 or 2, characterized in that ~ 65) are arranged outside the glass guide (37). 4. The vehicle door is a front vehicle door (15, 41).
In the case of the above, the diagonal members (31, 44) extend obliquely downward from the area of the upper hinge (14) in the direction of the floor-side node (12) of the B column of the vehicle body cell (1). The vehicle door according to claim 1. 5. A vehicle door of a two-door type automobile (5
In the case of 2), the slanted member (51) has a lower hinge (5).
5. A vehicle door according to any one of claims 1 to 4, which extends obliquely upward from the section 3) towards the support node (20) of the vehicle body cell (22) or towards the door lock (21). 6. In the case where the vehicle door is a rear vehicle door (18), the diagonal member (35) is in the direction of the door lock (17) from a position in the vicinity of the floor end / node (12) of the B strut. The vehicle door according to any one of claims 1 to 5, which extends. 7. The vehicle door according to claim 1, wherein diagonal members (62 and 63 or 64 and 65) intersecting each other are provided.