JP3266010B2 - Door structure - 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 structure having a side impact bar.

[0002]

2. Description of the Related Art A side impact bar is fixed to a door of a vehicle outside a vehicle body relative to a glass elevating track by a hinge panel and a latch panel fixed to the front and rear of an inner panel to prevent side collision and increase rigidity. . Generally, the side impact bar is made of a pipe material, and its both ends are crushed into a flat shape, or each is fixed to a hinge panel and a latch panel via a bracket.

Japanese Unexamined Patent Publication (Kokai) No. 6-504966 has three side impact bars, two of which are set as a set to oppose the outer plate side of the door and the inner plate side facing the door. The two side impact bars cooperate to receive an impact load.

[0004]

According to the above-mentioned prior art configuration, the side impact bar is fixed to the inner panel via the bracket and the hinge panel, and is disposed outside the vehicle body with respect to the glass elevating track. Since the number of parts is large, the structure becomes complicated, and it is difficult to efficiently transmit the collision load from the front-rear direction of the vehicle body to the vehicle body.

In the configuration described in JP-A-6-504966, the two side impact bars arranged at the lower part of the door are arranged obliquely from the same lower hinge part toward the interior of the vehicle, so that the glass is made of glass. It is difficult to secure the elevating trajectory of
It is difficult for the impact from the front-rear direction of the vehicle to be efficiently transmitted to the vehicle body. For this reason, since the impact force needs to be supported by the side impact bar itself, it is necessary to increase the rigidity of the panel to which the side impact bar is attached, and a reinforcing member is provided.

According to the present invention, by properly disposing the side impact bar between the first pillar and the second pillar,
It is an object of the present invention to provide a door structure excellent in impact resistance by efficiently transmitting a collision force in a vehicle front-rear direction or a vehicle width direction to a first pillar and a second pillar via a side impact bar. is there.

[0007]

In order to achieve the above object, the invention according to claim 1 is arranged in a door opening formed in a side portion of a vehicle, and one of the door opening is formed by upper and lower hinges. A first mounting panel supported by a first pillar forming a side portion, a second mounting panel disposed in the door opening so as to face the first mounting panel, and the first and second mounting panels. 2 having a plurality of side impact bars fixed at both ends to the mounting panel, and disposed on the outside and the inside of the vehicle with the glass operation track as a boundary inside the door , among the plurality of side impact bars, First
Is located inside the vehicle between the first pillar and the second pillar forming the other end of the door opening when closed, and the second is located at one end via the lower hinge. And the other end thereof is located on the outside of the vehicle opposite to the second pillar in the vehicle width direction when the other end is in the closed state.
And, the third one, the one end is characterized by being located on the vehicle outer side is connected to the first pillar through the upper hinge.

With this configuration, each side impact bar is fixed to the first mounting panel and the second mounting panel without interposing a bracket or the like, so that the number of parts is reduced and the structure is simplified. You. When applied the longitudinal direction of the impact load to the vehicle, the load is transmitted directly to the second pillar through the first side impact bar from the first pillar. When side impact load is applied to the structure, with its load is transmitted to the first pillar through upper and lower hinge from the first and second side impact bar, a portion of the second side impact bar second It is also transmitted to the second pillar in contact with the pillar.

According to a second aspect of the present invention, there is provided the first side impact bar, the second side impact bar, and the third side impact bar.
Of the side impact bar from above to below in a cross section that intersects the extension direction of each side impact bar .
The third side impact bar, the first side impact bar
And the second side impact bar are arranged in the order of a triangle. With such an arrangement of the side impact bar, the displacement of the support panel surface of the side impact bar is suppressed, and the support rigidity of the panel surface is increased, so that the collision load from the vehicle front-rear direction and the side can be efficiently reduced. It can be transmitted to the vehicle body and has excellent shock absorption.
The first mounting panel and the second mounting panel are prevented from rotating in the vehicle interior due to the impact force from the side of the vehicle body.

The second pillar is located at a position where the second pillar and the rear end face each other.
The cross-section of the side impact bar 2 may have a cross-sectional shape that widens in the direction in which the pillar extends in the closed state. With such a cross-sectional shape, the area facing the second pillar becomes large, so when an impact force is applied to the second side impact bar from the side and the second side impact bar comes into contact with the second pillar,
The contact resistance between them becomes large, and the second side impact bar is stretched against the impact.

[0011] The third side impact bar may be arranged outside the vehicle than the second side impact bar. With this arrangement, when an impact force is applied from the side to the structure, the third side impact bar is first deformed by receiving the impact, and an impact load is applied to the first pillar via the upper hinge. Is transmitted.

For each side impact bar, a square pipe has better attachment properties than a round pipe, and it is preferable to use a square pipe having a sun-shaped cross section formed by rolling a plate material. Strength can be obtained, and it is more advantageous in terms of securing rigidity and mounting of impact bars.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A door indicated by reference numeral 1 in FIG. 1 is disposed in a door opening 100 formed in a side portion of a vehicle body, and is a front side door. This door 1 is a door in which side impact bars 4, 5, and 6 are suspended on a hinge panel 2 and a latch panel 3 serving as a first mounting panel and a second mounting panel which are disposed to face each other before and after the door. A door main module 9 including a main frame 7 as a structure and a sash module 8 is a main part thereof. The hinge panel 2 is made of sheet metal and has a substantially hat-shaped cross section as shown in FIG. The latch panel 3 is formed in a U-shaped cross section, and the latch portion 10 is fixed to the back surface 3a.

The side impact bar 4 is a hinge panel 2
The side impact bar 6 is disposed below the hinge panel 2 and the latch panel 3, and the side impact bar 5 is disposed between the side impact bars 4, 6. Each side impact bar 4,5
Numeral 6 is arranged so as to be displaced from within the elevating operation trajectory G of the window glass 33 shown in FIG.

The front ends 4A of the side impact bars 4 and 6,
3A, the front surface 2a of the hinge panel 2 formed opposite to the inner surface 10a of the front pillar 10 as shown in FIG.
Projecting from the opening 2b of the hinge panel 2
Is fixed to the rear flange portion 2c with a plurality of rivets 14. Instead of the rivet 14, it may be fixed by welding. The hinge panel 2 has a closed cross-sectional structure by fixing the side impact bar 4 and the hinge panel 2, and a space portion X is formed therein to form a shock absorbing zone.

At the front ends 4A and 6A, the outer surface 1 of the front pillar 10 forming the front side of the above-described door opening 100 is provided.
The upper hinge 11 and the lower hinge 12 of the door fixed to 0b are directly fixed, respectively, and the main frame 7 is attached to the front pillar 10 so as to be openable and closable about an axis O shown in FIG. The upper hinge 11 and the lower hinge 12 may be fixed by fastening with bolts and nuts instead of welding. An upper frame 13 as a high-strength portion that receives a crushing load is connected to the front pillar 10,
The impact load at the time of a frontal collision is reduced, and the load is transmitted to a body frame (not shown) to which the front pillar 10 is fixed. In the opening 2b, a seal sponge 15 that seals between the impact bars 4, 6 and the opening 2b is mounted.

The front end 5A of the side impact bar 5 passes through an opening 2e formed in the rear surface 2d of the hinge panel 2 and is joined and fixed to the front surface 2a and the side surface 2f of the hinge panel 2, and the door is closed. Sometimes, it is arranged so as to be located closer to the rear of the vehicle than the inner surface 10a of the front pillar 10. The rear end 5B of the side impact bar 5 is shown in FIG.
As shown in FIG. 4, the door is closed to the inside 3b of the latch panel 3 facing the striker 17 fixed to the inner surface 16a of the center pillar 16 forming the rear side of the door opening 100 of FIG. It is arranged to face the striker 17 in the state. The side impact bar 5
It is arranged between the front pillar 10 and the center pillar 16 when the door is closed. The center pillar 16 extends in the up-down direction of the vehicle as shown by an arrow E as shown in FIG.

The rear end 6B of the side impact bar 6 extends to face the outer surface 16b of the center pillar 16 and is joined to the outer surface 3c of the latch panel 3. The rear end 4B of the side impact bar 4 is joined to the outer side surface 3c of the hinge panel 3, as shown in FIG. The side impact bars 4, 5, 6 are provided in parallel with each other in the extending direction. Side impact bar 4,
Between the side impact bar 6 and the side impact bar 6, an interval T at which the sash frame 30 can be inserted is set.

As shown in FIG. 6, the side impact bars 4, 6 are arranged outside the sash frame 30 on the vehicle side, and the side impact bars 5 are arranged inside the vehicle, rather than the sash frame 30, as shown in FIG. , 5,6
Are arranged in a triangular shape as shown in FIG. Side impact bar 4
Is disposed on the vehicle outside of the side impact bar 6 disposed below. In this example, the rear ends of the side impact bars 4, 5, and 6 are respectively fixed to the hinge panel 3, but may be fixed with rivets 14 similarly to the front end of the side impact bar. 3, 4, and 5
Denotes an inner weatherstrip.

As shown in FIG. 9, each of the side impact bars 4 and 5 and the side impact bar 6 employs a winding pipe formed by winding a plate material to form a cross section in the shape of a sun. With this sun-shaped cross section, the bending strength is remarkably improved by the action of the central partition wall P, and when the same strength as that of a round pipe or a simple square pipe is required, the cross section of the side impact bars 4, 5, and 6 is required. And the weight is reduced. Further, when a rectangular pipe is used, the side impact bar can be easily fixed directly to the hinge panel 2 or the latch panel 3 without providing a bracket as in the related art, and the number of parts is reduced, thereby simplifying the structure.

Each of the side impact bars 4 and 5 has a width indicated by an arrow L larger than a width L1 of the side impact bar 6. The width L1 of the side impact bar 6 is smaller than the width L of the side impact bars 4 and 5, and the height H1 of the side impact bar 6 is larger than the height H of the center pillar 16 in the extending direction indicated by the double arrow E. The joint surface with the hinge panel 2 and the latch panel 3 and the facing surface with the center pillar 16 are set to be large. In FIG. 9, only the side impact bars 4 and 6 are shown.

The upper surfaces 4C of the side impact bars 4 and 6,
As shown in FIG. 2, L-shaped brackets 23 and 24 for fixing the arm portions 21 and 22 fixed to the sash frame 30 are fixed to the 6C with rivets 25 and 26. Each of the arm portions 21 and 22 and the brackets 23 and 24
It is fastened with a bolt 27 and a nut 28 and is removable.

As shown in FIGS. 2 and 8, both ends of a belt line outer reinforcement 18 are fixedly connected to upper portions of the hinge panel 2 and the latch panel 3 located above the side impact bar 4. Hinge panel 2
The rear surface 2d and the rear surface 3a of the latch panel 3
9 and 20 are respectively formed downward.

As shown in FIG. 2, the sash module 8 has a frame-shaped sash frame 30 in which a belt line beam 31 is fixed to an intermediate portion of a gate and an under beam 32 is fixed to an opening side. , A window glass 33 and a regulator mechanism 34 for lifting and lowering the window glass 33 are integrally assembled, and are inserted between the side impact bars 4 and 5 and the side impact bar 6.

The belt line beam 31 and the under beam 32 are made of sheet metal, and are welded to the side sashes 30A and 30B, which are positioned in the longitudinal direction of the vehicle, so as to be involved. Front and rear end 3 of beltline beam 31
1a and 31b, as shown in FIG.
Pins 35 and 36 which are dropped into and engaged with the projection 20 are respectively provided in a protruding manner. These pins 35 and 36 are arranged on the same center line and rotatably support the sash module 8 with respect to the main frame 7.

Mounting brackets 37 and 38 are welded to the rear surface of the side sash 30B at intervals.
The mounting brackets 37 and 38 come into contact with the rear surface 3a of the latch panel 3 as shown in FIG. 2 so that the latch portion 13 can be disposed therebetween.
At 5, it is fastened to the back surface 3a.

Belt line beam 31 and under beam 3
A plurality of pulleys (not shown) are rotatably supported at both ends of 2. On these pulleys, wires 39 having both ends locked to a winding section 40 are arranged and stretched near the side sashes 3A and 3B and in the belt line beam 31. The winding section 40 feeds out the other end when one end of the wire 39 is wound, and is wound around each pulley so that the wires 39a and 39b located near the side sashes 3A and 3B can be moved in the same direction. I have.

As shown in FIGS. 3 and 4, wire holders 41a and 41b are fixed to the wires 39a and 39b. The wire holders 41a and 41b include a glass holder 42 fixed to both lower ends 33a and 33b of the glass 33,
43 is fixed, and both ends 33A and 33B of the glass are supported by side sashes 30A and 30B so as to be able to move up and down. A glass run channel 44 is continuously inserted into the inner circumferences of the side sashes 30A and 30B and the upper sash 30C continuous therewith.

A door outer panel 50 and an inner trim 51 are mounted on the sash module 8 and the main frame 7. The front end 50a of the door outer panel 50 is coupled to the front flange portion 2g of the hinge panel 2 by hemming as shown in FIG. 3, and the rear end 50b is connected to the rear end 51b of the inner trim 51 as shown in FIGS. Is attached with a screw 53. As shown in FIG. 6, the front end 51a and the upper portion 51c of the inner trim 51 are attached to a hinge panel 2 and a bracket 55 provided on the main frame 7 via a clip 54. Lower end 51 of inner trim 51
d is fixed to the lower surface 3d of the latch panel 3 with a screw 56, and the lower end 50d of the door outer panel 50 is hemmed and attached to the lower edge 51e of the inner panel 8. Further, a glass weather strip 57 is attached to the upper end 51f of the inner trim 51 and the upper end 50c of the door outer panel 50, respectively.

When a side impact load is applied to the door 1 having the main frame 7 having the above-described structure by the obstacle Z from the side of the door as indicated by an arrow f1 in FIG.
Is deformed and interferes with the side impact bar 4 located on the outermost side of the three impact bars 4, 5, 6. Then, along with the deformation of the door outer panel 50,
As shown in FIG. 10A, the load f1 is absorbed by the deformation of the side impact bar 4 toward the vehicle interior.
At this time, the space X between the side impact bar 4 and the hinge panel 2 serves as an impact absorbing zone, and is deformed to load f1.
Absorb.

The load f1 is large and the side impact bar 4
Is greatly deformed, the side impact bar 6 located next to the outside of the vehicle is deformed toward the inside of the vehicle particularly receiving the load and the load from below. Then, FIG.
As shown in (b), the front and rear ends 6A, 6B abut on the outer surfaces 10a, 16a of the front pillar 10 and the center pillar 16, and the load at that time is distributed to the vehicle body via the front pillar 10 and the center pillar 16. It is transmitted.
Since the rear end 6B is formed wider in the direction in which the center pillar 16 extends, frictional resistance between the rear end 6B and the surface portion 16b of the center pillar 16 increases, and a reaction force against deformation into the vehicle cabin acts. As a result, the side impact bar 6 is stretched. The space X becomes a shock absorbing zone and deforms to absorb the load f1. Therefore, the load f1 absorbed by the side impact bar 4 is further absorbed by the deformation of the side impact bar 6, and is efficiently transmitted from the center pillar 16 to the vehicle body and dispersed.

When the load f1 remains, the load f1 is absorbed by the deformation of the side impact bar 5 located between the side impact bars 4 and 6 in the most indoor space while deforming the sash frame 8.

Therefore, the load f1 is, as shown in FIG.
By the side impact bars 4 and 6 corresponding to the triangular base when the side impact bar 5 is set as the apex, the light is dispersed in the vertical direction with the side impact bar 5 as a center. Further, since the side impact bars 4, 5, and 6 are arranged in a triangular shape, the falling displacement of the hinge panel 2 and the latch panel 3, which are support panels for the side impact bars 4, 5, and 6, is controlled, and each panel 2 , 3 can be efficiently transmitted to the vehicle body in order to efficiently transmit a collision impact from the front-rear direction or from the side of the vehicle, and is excellent in shock absorption.

On the other hand, in FIG. 3, when a collision load f2 is applied to the vehicle from the front side, the load f2 is transmitted from a not-shown bumper to the upper frame 13.
At this time, if the load F2 is not absorbed by the bumper and the upper frame 13, the front pillar 10 is deformed and displaced rearward, and its inner surface 10a is transmitted to the end surface 5Aa of the side impact bar 5 via the hinge panel 2. .
The side impact bar 5 applies the load f2 to the end face 5Aa.
Therefore, the rearward movement is larger than the bending deformation toward the passenger compartment. Then, as shown in FIG. 10C, the rear end face 5Ba of the side impact bar 5 comes into contact with the latch portion 13 and the striker 17, and the load f2 is transmitted from the center pillar 16 to the vehicle body and dispersed. Generally, the impact load f2 at the time of a front collision is transmitted through the upper frame 13, so that the side impact bar 5 is disposed between the front pillar 10 and the center pillar 16,
This is advantageous in efficiently transmitting the load f2 to the front pillar 16.

The side impact bar 4 according to the present invention
The arrangement of 5, 6 is not limited to this mode.
For example, as shown in FIG. 11, the position of the side impact bar 6 is raised from the two-dot chain line position to the solid line position, the relative distance between the side impact bar 4 and the side impact bar 4 is reduced, and the vertex angle θ of the triangle having the side impact bar 5 as the vertex is set. May be set in the acute angle direction. Alternatively, the same applies to the case where the position of the side impact bar 5 is moved further indoors or the position of the side impact bar 4 is lowered.

Even with such a configuration, the falling displacement of the hinge panel 2 and the latch panel 3 serving as the support panels for the side impact bars 4, 5, and 6 is controlled to increase the support rigidity of the panels 2 and 3, and the vehicle It can efficiently transmit collision impacts from the front and rear and from the side to the vehicle body, and is excellent in shock absorption. In short, the upper and lower door hinges 11, 12 are fixed to the front ends 4A, 6A of the side impact bars 4, 6, and the rear end 6B of the side impact bar 6 can be directly opposed to the center pillar 16, so that the side impact bar 5, Can be arranged between pillars arranged before and after the door when the door is closed, and the arrangement is free as long as the three side impact bars 4, 5, and 6 can form a triangular shape.

In the embodiment described above, the front side door is used, but a rear side door in which the center pillar 16 is provided with upper and lower door hinges 11 and 12 may be used. In this case, the first pillar is a center pillar 16 and the second pillar is a rear pillar (not shown).

[0038]

Effects of the Invention According to the first aspect of the invention, the collision load from the vehicle front-rear direction is transmitted directly to the second pillar via a first side impact bar from the first pillar, side impact load is second and also transmitted to the third of the second pillar from the second side impact bar with the side impact bar is transmitted to the first pillar through upper and lower hinge, efficiently collision load from the vehicle front-rear direction and lateral It can be transmitted to the vehicle body and has excellent shock absorption. Since each side impact bar is fixed to the first and second panels without interposing a bracket or the like, the number of parts is reduced and the structure can be simplified.

According to the second aspect of the present invention, the three side impact bars are connected from the upper side to the lower side in a cross section intersecting the extending direction of the three side impact bars.
ー, the first side impact bar, the second side impact bar
The first mounting panel and the second mounting panel can be prevented from rotating in the vehicle interior direction due to the impact force from the side of the vehicle body by arranging the first mounting panel and the second mounting panel in a triangular shape in the order of the cut bars. Increases rigidity.

[Brief description of the drawings]

FIG. 1 is a partially broken side view of a door structure showing one embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a door frame and a sash module.

FIG. 3 is a sectional view taken along the line AA of FIG. 1, showing a configuration of a front end side of the side impact bar.

FIG. 4 is a sectional view taken along the line BB of FIG. 1 showing a configuration of the rear end side of the second and third side impact bars.

FIG. 5 is a cross-sectional view taken along the line CC in FIG. 1 showing the configuration of the rear end of the first side impact bar.

FIG. 6 is a diagram showing an arrangement of a side impact bar.
FIG. 4 is a sectional view taken along line D.

FIG. 7 is a model diagram showing an arrangement configuration of each side impact bar.

FIG. 8 is a partially broken enlarged perspective view showing a configuration of a support portion of the main frame and the sash module.

FIG. 9 is an enlarged view showing a cross-sectional configuration of a side impact bar and a support configuration of a main frame and a sash module.

10A is a diagram illustrating the operation of a third side impact bar, FIG. 10B is a diagram illustrating the operation of a second side impact bar, and FIG. 10C is a diagram illustrating the operation of a first side impact bar. It is.

FIG. 11 is an enlarged sectional view showing a modification of the arrangement of the side impact bar.

[Explanation of symbols]

2 the first mounting panel (hinge panel) 3 second mounting panel (latch panel) 4 third side impact bar 5 first side impact bar 6 above the hinge 12 under the second side impact bar 10 first pillar 11 Hinge 16 Second pillar 100 Door opening E Pillar extension rear G Glass operation trajectory

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B60J 5/00

Claims (2)

(57) [Claims] A first mounting panel disposed in a door opening formed on a side of a vehicle and supported by a first pillar forming one side of the door opening by upper and lower hinges; A second mounting panel disposed in the door opening so as to face the first mounting panel; and the first and second mounting panels.
Mounting panel respectively fixed at both ends, and the door
And a border on the exterior side and a plurality of which are arranged on the interior side side impact bar glass operation track in section, of the plurality of side impact bar, the first one, the first pillar in the closed state And a second pillar forming the other end of the door opening, located on the inside of the vehicle , the second having one end connected to the first pillar via the lower hinge. the other end is positioned in the vehicle width direction and opposed to the second pillar outside the car during the closed state, the third one, one end connected to the first pillar through the upper hinge A door structure which is located on the outside of the vehicle . 2. The first, second, and third side impact bars are connected to the third side impact bar from the upper side to the lower side in a cross section intersecting with the extending direction of each side impact bar.
Impact bar, first side impact bar, second impact bar
2. The door structure according to claim 1, wherein the door impact bars are arranged in the order of a triangle.