JP6764293B2 - Vehicle door - Google Patents

Description

The present invention relates to a vehicle door, particularly a vehicle door capable of distributing a load to a vehicle body and maintaining a vehicle interior space.

In the existing vehicle door, the attachment portion of the door beam may be deformed at the time of a collision, and it may be difficult to obtain a desired supporting reaction force by the door beam.
As a vehicle door having high collision energy absorption performance, a vehicle door having a fragile portion at a door beam attachment portion in a skeleton material arranged between a door outer panel and a door inner panel is known (see Patent Document 1).
In such a vehicle door, the front part and the rear part of the skeleton material are urged to be twisted and deformed, and the lower part of the skeleton material is brought into contact with the side sill to increase the supporting reaction force of the door beam and properly bend and deform the door beam. It is possible to make it.

Japanese Patent No. 2962036

The conventional vehicle door as described above absorbs the load in a part other than the door beam, but largely depends on the load absorption by the door beam.

Therefore, an object to be solved by the present invention is to provide a vehicle door capable of reducing the dependence of load absorption on the door beam, and capable of good load absorption of the entire door and maintenance of the vehicle interior space. ..

As a means for solving the above problem, vehicle door according to the present invention, there is provided a vehicle door mounted to the vehicle body, a panel unit disposed outside the vehicle interior side and the vehicle compartment, the panel portion a frame portion disposed between, and a reinforcement portion that is connected to the frame portion, the frame portion includes a front portion and a rear portion which respectively extend in the vertical direction in the front and rear portions of the panel portion has a lower portion which connects the lower portion of the front portion and the rear portion, the reinforcement portion includes a first reinforcement which connects the rear portion and the front portion, and said first reinforcing member It has a, a second reinforcement that connects the lower portion, the second reinforcement extends substantially vertically, is provided on the outside with the vehicle width direction than the lower part and the first reinforcement When a load is received from the side of the vehicle, the load is transmitted to the lower portion and the first reinforcement, and the first reinforcement extends substantially in the front-rear direction and is transmitted from the second reinforcement. The applied load is transmitted to the front portion and the rear portion, and the lower portion absorbs the load and distributes the load over the entire frame portion .

In the vehicle door according to the present invention, the front portion and the rear portion have front and rear overlapping portions that overlap the hinges and latches provided on the vehicle body in the vehicle width direction, and the lower portion has a lower overlapping portion that overlaps the side sill in the vehicle width direction. It is preferable to have.

According to the present invention, a load absorbing portion extending in the front-rear and up-down directions is formed between the panel portions by the reinforcement portion, and the load received by the reinforcement portion is received by connecting the reinforcement portion to the frame portion. Since it is absorbed by, good load absorption is possible in the entire door, and since the load is distributed throughout the door, the intrusion of the door itself into the vehicle interior side is reduced or suppressed, and the vehicle interior space can be maintained. Vehicle doors can be provided.

FIG. 1 is a side view showing a vehicle provided with a vehicle door according to an embodiment of the present invention. FIG. 2 is an exploded view of the vehicle door shown in FIG. FIG. 3 is a schematic cross-sectional view taken along the cross section I-I of the vehicle door shown in FIG. FIG. 4 is a schematic view showing a part of the vehicle door shown in FIG. FIG. 5 is a schematic view of a part of the vehicle door according to another embodiment of the present invention as a side view. FIG. 6 is a schematic view of a part of the vehicle door according to still another embodiment of the present invention as a side view.

(Outline of basic embodiment)
An embodiment of a vehicle door according to the present invention will be described with reference to FIGS. 1 to 4.
Note that FIG. 1 is a side view showing a vehicle 100 provided with a vehicle door 1 according to an embodiment of the present invention. Further, FIG. 2 is an exploded view of the vehicle door 1 shown in FIG. FIG. 3 is a schematic cross-sectional view taken along the cross section I-I of the vehicle door 1 shown in FIG. FIG. 4 is a schematic view showing a part of the vehicle door 1 shown in FIG.

As shown in FIG. 1, a vehicle door 1, specifically, a front door 101 and a rear door 102 are provided on the side of the vehicle 100. The front door 101 and the rear door 102 can be opened and closed with respect to an opening formed by the A pillar 103, the B pillar 104, the C pillar 105, the roof pillar 106, and the side sill 107 on the side of the vehicle body 200. The front door 101 is rotatable with respect to the vehicle body 200 via a hinge 108 provided on the vehicle body 200, and the rear door 102 engages with the vehicle body 200 via a latch 109 provided on the vehicle body 200. Detachment is possible. The engaged state of the latch 109 can be released by operating the door handle 110 provided so as to be exposed on the door surface. In the present embodiment, the hinge 108 and the portion that engages with the hinge 108 and the shaft support are provided in the frame portion 3 described later.
The front door 101 and the rear door 102 are examples of vehicle doors according to the present invention.

Next, the internal configuration of the vehicle door 1 will be described with reference to FIGS. 2 and 3.
As shown in FIG. 2, the front door 101 includes a panel portion 2, a frame portion 3, and a reinforcement portion 4.

The panel portion 2 is a substantially plate-shaped member arranged on the vehicle interior side and the vehicle interior outside. The panel portion 2 has an inner panel 21 provided on the vehicle interior side with respect to the frame portion 3 described later, and an outer panel 22 provided on the vehicle interior side with respect to the frame portion 3. For the inner panel 21 and the outer panel 22, a metal or resin plate material used for an existing vehicle door can be used. As shown in FIG. 3, the inner panel 21 and the outer panel 22 are fixed to each other at the lower part of the front door 101 by hem processing or the like.

In the vehicle 100 of the present embodiment, as shown in FIG. 3, a floor portion 111 formed so as to be passed between the left and right side sills 107 is provided on the vehicle interior side. A seat rail 112 is arranged on the upper surface side of the floor portion 111, and a seat S on which an occupant can sit is arranged on the seat rail 112. Further, a resin door trim T is provided on the vehicle interior side of the inner panel 21 in order to secure the design on the vehicle interior side and to attach the window elevating operation member and the like.

The frame portion 3 is a tubular member arranged between the inner panel 21 of the panel portion 2 and the outer panel 22. The frame portion 3 has a front portion 31 and a rear portion 32 extending in the vertical direction in the front and rear portions of the panel portion 2, and a lower portion 33 connecting the lower portions of the front portion 31 and the rear portion 32, respectively.

The reinforcement portion 4 is a strip-shaped plate-shaped member connected to the frame portion 3. The reinforcement unit 4 has a first reinforcement 41 and a second reinforcement 42. The first reinforcement 41 is a member that connects the front portion 31 and the rear portion 32 of the frame portion 3. The second reinforcement 42 is a member that connects the first reinforcement 41 and the lower portion 33 of the frame portion 3. In particular, as shown in FIG. 3, in the present embodiment, the region between the panel portion 2 is formed by the first reinforcement 41, the second reinforcement 42, the front portion 31 of the frame portion 3, and the rear portion 32. That is, it forms an opening O with respect to the internal space of the door.

The frame portion 3 and the reinforcement portion 4 are formed as rigid members, and absorb the load when, for example, a load generated by a collision generated from the side of the vehicle 100 acts on the frame portion 3 and the reinforcement portion 4. At the same time, it is provided as a member for transmitting a load to a vehicle body component such as a skeleton member. In particular, the frame portion 3 in the present embodiment mainly absorbs the load by compressing and deforming the cross-sectional shape of the tubular portion, and the reinforcement portion 4 is mainly connected by being pressed from the outside to the inside of the vehicle interior. The load can be transmitted to the frame portion 3 and the like.

A plate-shaped glass 5 is arranged on the front door 101, and the lower end portion of the glass 5 is fixedly held by the holding portion 6 inside the door. The holding portion 6 is attached to an elevating mechanism portion 7 arranged inside the door. The elevating mechanism portion 7 includes an actuator, an appropriate wire-shaped member, a rail member extending in the vertical direction, and the like. The glass 5 and the holding portion 6 can be raised and lowered by the raising and lowering mechanism portion 7 in substantially the vertical direction.

Subsequently, with reference to FIG. 4, the arrangement of the members inside the front door 101 and the action and effect thereof will be described. In FIG. 4, the frame portion 3 and the reinforcement portion 4 are shown by solid lines, and the glass 5, the hinge 108, the latch 109, and the like are shown by broken lines at the positions corresponding to them. Note that FIG. 4 shows the frame portion 3 and the reinforcement portion 4 of the front door 101 as viewed from the vehicle interior side.

As shown in FIG. 4, in the present embodiment, the first reinforcement 41 extends substantially in the anteroposterior direction, and the second reinforcement 42 extends substantially in the vertical direction. Further, the front portion 31 has a front-rear overlapping portion 34 which is a portion overlapping the hinge 108 in the vehicle width direction, and the rear portion 32 has a front-rear overlapping portion 34 which is a portion overlapping the latch 109 in the vehicle width direction. 33 has a lower overlapping portion 35 that overlaps the side sill in the vehicle width direction. In the present embodiment, the front-rear overlapping portion 34 and the lower overlapping portion 35 are formed on the surface of the frame portion 3 on the vehicle interior side.
Although not shown, in the present embodiment, the front-rear overlapping portion 34 in the front portion 31 is provided with a portion axially supported with respect to the hinge 108, and the front-rear overlapping portion 34 in the rear portion 32 is provided with respect to the latch 109. A part to be engaged is provided.

The strength of the frame portion 3 having the front portion 31, the rear portion 32, and the lower portion 33 in the present embodiment includes the skeleton members such as the A pillar 103, the B pillar 104, and the C pillar 105 of the vehicle body 200 shown in FIG. , It is lower than the door beams and the like arranged in the front and rear inside the existing vehicle door, and is set to the same level as the high-tensile steel and the like which have been cold-pressed. The frame portion 3 having such strength is formed of iron, aluminum, resin, or the like.

When a collision with another vehicle or the like occurs from the side of the vehicle 100 provided with the front door 101 according to the present embodiment, the front portion 31 and the rear portion 32 of the frame portion 3 and the second phosphorus of the reinforcement portion 4 A collision load acts on the force 42. The front portion 31 and the rear portion 32 absorb the load and distribute the load over the entire frame portion 3.

The second reinforcement 42 transmits a load to the connected first reinforcement 41 and the lower portion 33. Further, the first reinforcement 41 transmits the load to the connected front portion 31 and the rear portion 32. The lower portion 33 absorbs the load and distributes the load over the entire frame portion 3.

Since the reinforcement portion 4 is arranged outside the vehicle interior from the glass, the load can be received at a position away from the occupant at the vehicle door 1, and the collision progresses and the colliding object tries to enter the vehicle interior side. Since the load can be continuously absorbed during the period, a large load absorption is possible.
Further, in the present embodiment, since the first reinforcement 41 is also arranged on the vehicle interior side with respect to the glass, the allowable load absorption amount in the upper part of the frame portion 3 can be increased, and further. The load can be received by the entire frame portion 3.

Since the frame portion 3 has the front-rear overlapping portion 34 and the lower overlapping portion 35, the load received by the reinforcement portion 4 and the frame portion 3 is on the vehicle body side of the A pillar 103, the B pillar 104, the C pillar 105, the side sill 107, and the like. Can be transmitted to the skeletal member of. At this time, since the front portion 31 and the rear portion 32 are fixed to the hinge 108 and the latch 109 via the front-rear overlapping portion 34, while the load continues to act on the frame portion 3 and the reinforcement portion 4. It is possible to suppress the occurrence of misalignment of the vehicle door 1 and, as a result, prevent the load transmission to the vehicle body 200 from becoming impossible due to the misalignment of the door.

In addition, good load absorption and distribution by the frame portion 3 and the reinforcement portion 4 and transmission to the skeleton member and the like on the vehicle body 200 side prevent the vehicle door 1 from being pushed by the colliding body and entering the vehicle interior. It is possible. That is, the vehicle door 1 can maintain the vehicle interior space.

Since the frame portion 3 and the reinforcement portion 4 receive the load and transmit the load to the vehicle body 200, the panel portion 2 can be made thinner and lighter than the existing door panel, the material can be liberalized, the design can be liberalized, and the like. is there.

(Modification example)
Hereinafter, modifications and suitable examples of the present invention will be described.
5 and 6 show a modified example of the vehicle door according to the present invention.
Note that FIG. 5 is a schematic view of a part of the vehicle door according to another embodiment of the present invention as a side view. Further, FIG. 6 is a schematic view of a part of the vehicle door according to still another embodiment of the present invention as a side view. Since the frame portion 3 and the reinforcement portion 4 shown in FIGS. 5 and 6 use the same members as those shown in FIGS. 1 to 4, they are designated by a common reference reference numeral, and detailed description thereof will be omitted. To do.

The front door 201, which is a vehicle door shown in FIG. 5, has an engaging portion 36 at the lower overlapping portion 35. The engaging portion 36 is a member that engages with the side sill 107 at the time of collision. Specifically, the engaging portion 36 shown in FIG. 5 is formed as a boss projecting from the surface portion of the lower overlapping portion 35 toward the side sill 107. In this case, a hole or groove into which the boss can be inserted is formed in the side sill 107.

When a collision occurs with the front door 201, the frame portion 3 receives a load and is pressed against the vehicle body side, so that the boss, which is the engaging portion 36, is inserted into the hole or the like of the side sill 107 to be in the engaged state. Become. By engaging the engaging portion 36 with the vehicle body, the occurrence of misalignment of the front door 201 is further suppressed while the collision load continues to act, and the load transmission to the vehicle body 200 is more reliable. Will be done.

Although FIG. 5 shows an embodiment in which the engaging portion 36 is formed as a boss and the insertion hole is formed in the side sill 107, the protrusion portion and the hole may be arranged in reverse. That is, the boss is projected toward the outside of the passenger compartment in the plate material arranged on the inner side of the plate assembly of the side sill 107, and a hole or groove into which the boss can be inserted is formed in the lower portion 33 as an engaging portion. It may be in the form of In this case, when the lower portion 33 is pressed against the side sill 107 by a collision, the boss breaks through the plate material on the outside of the passenger compartment of the side sill 107 to be exposed, and the boss is inserted into the hole or groove which is the engaging portion to engage. .. As a result, since holes and the like are not formed in the side sill 107, the strength of the conventional side sill 107 can be maintained, and the displacement of the vehicle door at the time of a collision due to the engaging portion can be suppressed.

Examples of the embodiment of the combination of the engaging portion and the portion engaging with the engaging portion in the present invention include a combination of a side sill catcher and a member capable of engaging with the side sill catcher, a flange and a slit that can be inserted and locked therein. It can be deformed in various ways, such as a combination of the above, the uneven portion and the uneven portion that can be inserted into the uneven portion, and the combination of the uneven portion that can be fitted.

The front door 301, which is a vehicle door shown in FIG. 6, has a fragile portion 43 in the first reinforcement 41. The fragile portion 43 is a portion provided in front of the connection portion of the second reinforcement 42 in the first reinforcement 41 when viewed from the front of the vehicle, and can be a starting point of deformation when a load is applied to the first reinforcement 41. It is a part. Specifically, the fragile portion 43 shown in FIG. 6 is formed as a groove substantially in the vertical direction on the surface portion of the first reinforcement 41.

When a collision occurs with the front door 301, the load received by the reinforcement unit 4 is transmitted to the frame unit 3 and the vehicle body 200 while partially absorbing the load received by the reinforcement unit 4. When a load exceeding the size that can be absorbed and transmitted acts on the reinforcement portion 4, the first reinforcement 41 is deformed starting from the fragile portion 43. At this time, the front side of the first reinforcement 41 is more easily deformed than the rear side with respect to the fragile portion 43. This is because a rectangular frame-shaped body is formed by the first reinforcement 41, the second reinforcement 42, and the frame portion 3 at the posterior portion of the fragile portion 43, so that the load on the frame-shaped body is formed. This is because the dispersion is performed more efficiently than the anterior site. This is preferable from the viewpoint of occupant protection because the door member in the region where the occupant is seated is less likely to enter the vehicle interior side behind the fragile portion 43 of the first reinforcement 41, that is, in the vehicle interior.

In the present embodiment, the fragile portion 43 is provided on the first reinforcement 41 outside the vehicle interior. This is because the fragile portion 43 needs to be formed in the first reinforcement 41 outside the vehicle interior where the load transmission from the second reinforcement 42 can occur due to the connection arrangement with the second reinforcement 42. If the second reinforcement 42 is connected to the first reinforcement 41 on the vehicle interior side, the fragile portion 43 is formed on the first reinforcement 41 on the vehicle interior side where the load is transmitted from the second reinforcement 42. It will be.

In addition, in consideration of the seating area of the occupant in consideration of the physique, body shape, etc., and the assumed intrusion area such as an oblique collision from the front and a pole collision, which are collision forms in which intrusion is likely to occur inside the occupant room, the second phosphorus It is preferable that the front-rear position of the force 42 is set. Therefore, in the case of providing the fragile portion 43 as shown in FIG. 6, it is preferable to set the formation position of the fragile portion 43 according to the set position of the second reinforcement 42.
However, when a side collision or an oblique collision from the front occurs on the front door 101, the second reinforcement 42 is arranged in front of the upper body of the occupant closest to the front door 101, so that the vulnerable portion 43 Regardless of the presence or absence, it is preferable because it is unlikely that the second reinforcement 42 will be pushed into the vehicle interior side and come into contact with the occupant, which may lead to an increase in the injury value.

In addition to the embodiments illustrated as described above, various embodiments can be adopted as long as the object of the present invention can be achieved.

In the above-described embodiment, the panel portion 2 and the frame portion 3 are formed separately, but for example, the flange-shaped portion passed between the panel portions and the panel portion form a tubular portion such as the frame portion 3. It may be used as the frame portion of the present invention. This can contribute to the reduction of the number of parts and the weight reduction of the vehicle door.

Further, as a member to which the connecting member for connecting the hinge and the latch is attached, in addition to the front-rear overlapping portion 34 of the frame portion 3 described above, for example, an inner panel or another member appropriately provided between the frame portion and the inner panel. Members and the like can be mentioned. Even when the connecting member is attached to other than the frame portion, the load transmission from the frame portion to the vehicle body at the time of a collision is not hindered because the frame portion has the front and rear overlapping portions.

A door beam may be provided on the vehicle door according to the present invention, but since load absorption and transmission are performed by the frame portion and the reinforcement portion as described above, the load absorption door beam can be obtained as compared with the existing vehicle door. The degree of dependence can be reduced.

In the above-described embodiment, the first reinforcement 41 of the reinforcement unit 4 is arranged so as to sandwich the glass 5 from both sides inside and outside the vehicle interior with respect to the glass 5, but in the present invention, the first reinforcement 41 is arranged in the vehicle interior. It may be arranged only on the inside or only on the outside of the passenger compartment.

When the first reinforcement is arranged only on the vehicle interior side, the second reinforcement can also be used as the track portion of the elevating mechanism portion for raising and lowering the glass. Further, since the outside of the vehicle interior, that is, the area where the glass, the frame portion, the outer panel, etc. are arranged can be used as a so-called crushable zone from the first reinforcement, a large load absorption amount at the vehicle door can be secured. In particular, it is possible to suitably suppress the intrusion of the vehicle door and the colliding object from the reinforcement portion to the vehicle interior side.

When the first reinforcement is arranged only on the outside of the passenger compartment, the reinforcement portion can be specialized for occupant protection. That is, by forming the reinforcement portion with a material having higher strength than when the reinforcement portion is provided only on the vehicle interior side, the load absorption amount in the reinforcement portion in the present invention is improved, and the vehicle door and the collision It is possible to suitably suppress the intrusion of an object into the vehicle interior side.

In the above-described embodiment, the vehicle door provided on the side of the vehicle body is shown, but the present invention can also be applied to a hatchback type vehicle door at the rear of the vehicle. When the present invention is applied to a hatchback type door, instead of the front portion and the rear portion of the frame portion, frame-shaped members arranged on both the left and right sides in the vertical direction are placed on the rear surface side of the C pillar or the D pillar. They are arranged so as to overlap in the front-back direction. Further, instead of the lower portion, the frame-shaped members along the left-right direction are arranged so as to overlap the members constituting the bottom surface portion of the luggage compartment and the vehicle body constituent members around the same in the front-rear direction. Further, a reinforcement portion for appropriately connecting these frame-shaped members is arranged. As a result, the hatchback type door provided with the frame part and the reinforcement part has good load absorption and transmission to the vehicle body, and can suitably suppress the intrusion of the vehicle door and the collision object into the vehicle interior side at the time of a rear collision. It becomes.

When the vehicle 100 in the above embodiment is viewed sideways, the first reinforcement and the second reinforcement 42 are replaced with the reinforcement portion 4 which is substantially T-shaped by the first reinforcement 41 and the second reinforcement 42. It is also possible to adopt a form such as a substantially Y-shape by appropriately changing the shape of. Further, when the vehicle 100 in the above-described embodiment is viewed from the side, the corner portion is replaced with the frame portion 3 in which the front portion 31, the rear portion 32, and the lower portion 33 form a U-shape having substantially right angles. A shape such as a substantially U-shape cut appropriately can also be adopted.

Although the embodiment to which the invention made by the present inventor is applied has been described above, the present invention is not limited by the discourse and drawings which form a part of the disclosure of the present invention according to this embodiment. That is, it should be added that all other embodiments, examples, operational techniques, and the like made by those skilled in the art based on this embodiment are of course included in the category of the present invention.

1: Vehicle door, 2: Panel part, 21: Inner panel, 22: Outer panel, 3: Frame part, 31: Front part, 32: Rear part, 33: Lower part, 34: Front and rear overlapping part, 35: Lower overlapping part Part, 36: Engagement part, 4: Reinforce part, 41: 1st reinforce, 42: 2nd reinforce, 43: Fragile part, 5: Glass, 6: Holding part, 7: Elevating mechanism part, 100: Vehicles, 101, 201 and 301: Front door, 102: Rear door, 103: A pillar, 104: B pillar, 105: C pillar, 106: Roof pillar, 107: Side sill, 108: Hinge, 109: Latch, 110: Door handle , 111: Floor, 112: Seat rail, 200: Body, O: Opening, S: Seat, T: Door trim

Claims (2)

A vehicle door that can be attached to the vehicle body
Panels located on the inside and outside of the passenger compartment,
A frame portion arranged between the panel portions and
A reinforcement unit connected to the frame unit is provided.
The frame portion has a front portion and a rear portion extending in the vertical direction in the front and rear portions of the panel portion, respectively, and a lower portion connecting the front portion and the lower portion of the rear portion.
The reinforcement section may possess a first reinforcement for connecting the front portion and the rear portion, and a second reinforcement that connects the the first reinforcement lower portion,
The second reinforcement extends substantially in the vertical direction, is provided outside the lower portion and the first reinforcement in the vehicle width direction, and when a load is received from the side of the vehicle, the lower portion and the said Transfer the load to the 1st reinforcement,
The first reinforcement extends substantially in the front-rear direction, and the load transmitted from the second reinforcement is transmitted to the front portion and the rear portion.
The lower portion absorbs the load and distributes the load throughout the frame portion .
Vehicle door. The front portion and the rear portion have front and rear overlapping portions that overlap the hinges and latches provided on the vehicle body in the vehicle width direction.
The lower portion has a lower overlapping portion that overlaps the side sill in the vehicle width direction.
The vehicle door according to claim 1 .

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