JP6614698B2 - Vehicle side door structure - Google Patents

Description

  The present invention relates to a side door structure of a vehicle such as an automobile.

As specific examples of the vehicle side door structure, there are structures described in Patent Documents 1 and 2.
In the side door structure described in Patent Document 1, an impact beam and tension rigidity reinforcement are disposed in a side door of a vehicle. The impact beam is provided for the purpose of preventing door deformation at the time of a side collision of the vehicle, and extends in the vehicle front-rear direction. The tension rigidity reinforcement is provided for the purpose of increasing the tension rigidity of the outer panel of the side door, is positioned above the impact beam, extends in the vehicle front-rear direction, and is bonded to the outer panel.
On the other hand, in the side door structure described in Patent Document 2, an energy absorbing member (impact absorbing member) is disposed in the side door. The energy absorbing member is provided so as to protect the occupant's waist when the side door is pushed into the passenger compartment due to a side collision of the vehicle.

However, in the prior art, there are cases where problems occur as described below.
That is, the arrangement and size of the tension rigidity reinforcement is determined so that the overall tension rigidity of the outer panel can be increased reasonably. However, from the viewpoint of weight reduction, cost reduction, or other viewpoints, there are cases where the arrangement and size of the tension rigidity reinforcement are restricted, and the tension rigidity of the outer panel of the side door may not be sufficiently increased.
On the other hand, as described above, Patent Document 2 describes a configuration in which an energy absorbing member is provided in the side door. However, the conventional energy absorbing member is intended to protect an occupant during a side collision of a vehicle. It is only used as an exclusive product. In other words, the conventional energy absorbing member is not useful at all with respect to, for example, increasing the rigidity of the outer panel of the side door.

JP 2003-25842 A Japanese Patent Laid-Open No. 2000-127763

  The present invention has been conceived under the circumstances as described above, and it is possible to rationally improve the tension rigidity of the outer panel of the side door while suppressing an increase in weight and manufacturing cost. It is an object to provide a side door structure of a vehicle that can be used.

  In order to solve the above-described problems, the present invention takes the following technical means.

A vehicle side door structure provided by the present invention includes a tension rigidity reinforcement disposed in a vehicle side door and extending in the vehicle front-rear direction, and being bonded to an outer panel of the side door, and the tension rigidity reinforcement. An impact beam disposed in the side door at a height different from that of the vehicle and extending in the longitudinal direction of the vehicle, and attached to both the tension rigidity reinforcement and the impact beam so as to be disposed in the side door. And a flexible energy absorbing member provided, wherein the energy absorbing member is formed with a recess into which the impact beam is fitted, and the recess is formed on both sides in the vehicle width direction. A pair of engaging portions that engage with the impact beam so as to be sandwiched from both sides in the vehicle width direction are provided. Energy absorbing member is characterized in that it is set in place in close proximity without contact relative to the outer panel.

According to such a configuration, the following effects can be obtained.
First, the energy absorbing member can be attached in an arrangement close to the outer panel of the side door, and the presence of the energy absorbing member can substantially increase the rigidity of the outer panel. That is, when an external force such as hand pressing is applied to the outer panel of the side door, the energy absorbing member can prevent the outer panel from being pushed more than a certain amount.
Second, since the energy absorbing member for protecting the occupant is used as the means for improving the tension rigidity of the outer panel, the configuration is rational and it is not necessary to add an expensive part dedicated to it. Further, it is not necessary to increase the tension rigidity reinforcement or increase the thickness of the outer panel, and it is possible to suitably suppress an increase in weight and an increase in manufacturing cost.
Thirdly, since the tension rigidity reinforcement is connected to the impact beam having high rigidity through the energy absorbing member, the tension rigidity reinforcement in the area where the energy absorbing member is connected is arranged in the region where the tension rigidity reinforcement is disposed. The effect of increasing rigidity can also be expected.
Fourth, since the energy absorbing member that connects the tension rigidity reinforcement and the impact beam has flexibility, it can also function to attenuate noise and vibration during opening and closing of the side door.
Fifth, stable attachment of the energy absorbing member can be achieved. Therefore, the original performance of the energy absorbing member can be appropriately generated at the time of a side collision of the vehicle.

  Other features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

(A) is a side view which shows an example of the side door structure of the vehicle which concerns on this invention, (b) is II principal part sectional drawing of (a).

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

The vehicle side door structure A shown in FIG. 1 has a configuration in which an impact beam 2, a tension rigidity reinforcement 3, and an energy absorbing member 4 are disposed inside a side door 1 that is attached to a side portion of a vehicle body.
The side door 1 is configured by joining an outer panel 10 and an inner panel 11, and a window frame portion 12 and the like are provided at an upper portion. In the side door 1, a window glass raising / lowering mechanism and other devices / parts are disposed, but description thereof will be omitted.

The impact beam 2 and the tension rigidity reinforcement 3 are basically the same as those described in Patent Document 1, and both extend in the vehicle front-rear direction.
The impact beam 2 is configured using, for example, a high-strength round pipe material, is disposed close to the outer panel 10, and both front and rear end portions thereof are fixed to the inner panel 11 via brackets 20. Further, the impact beam 2 is bonded to the outer panel 10 via an adhesive 8, for example.

The tension rigidity reinforcement 3 is also fixed to the inner panel 11 at both front and rear ends by means such as bolting or welding. The tension rigidity reinforcement 3 is located close to the outer panel 10 at a position above the impact beam 2. The tension rigidity reinforcement 3 has, for example, a flat cross-sectional hat shape, and an upper portion thereof is bonded to the outer panel 10 using an adhesive 8a. Of the tension rigidity reinforcement 3, portions other than those described above are not bonded to the outer panel 10 and are not in contact with the outer panel 10.

  The energy absorbing member 4 is a block-like or plate-like pad made of foamed resin, for example, and has flexibility. The energy absorbing member 4 is attached in a state of being stretched over both the tension rigidity reinforcement 3 and the impact beam 2.

  More specifically, the upper part of the energy absorbing member 4 is attached to the tension rigidity reinforcement 3 using, for example, a clip pin 5. The clip pin 5 is set so as to be inserted into holes 40 and 30 provided in the energy absorbing member 4 and the tension rigidity reinforcement 3, respectively, and the front end portion is locked to the tension rigidity reinforcement 3 in a retaining state. Thus, the upper part of the energy absorbing member 4 is fixed to the tension rigidity reinforcement 3.

  A concave portion 41 having a downward opening is formed in the lower portion of the energy absorbing member 4, and the upper portion of the impact beam 2 is fitted into the concave portion 41. Of the energy absorbing member 4, the vehicle width direction outer side portion and the inner side portion of the recess 41 are a pair of engagement portions 42 a and 42 b that engage the impact beam 2 from both sides in the vehicle width direction, Due to the presence of the pair of engaging portions 42a and 42b, the lower portion of the energy absorbing member 4 is also appropriately prevented from moving in the vehicle width direction.

  The energy absorbing member 4 is provided in an arrangement facing the waist of the vehicle occupant. In addition, the energy absorbing member 4 is disposed close to the outer panel 10, but is set in a non-contact manner that generates a gap 19 between the energy absorbing member 4 and the outer panel 10. This configuration prevents rainwater or the like from entering between the energy absorbing member 4 and the outer panel 10 and continuing to accumulate when rainwater or the like enters the side door 1.

  Next, the operation of the vehicle side door structure A will be described.

  First, since the energy absorbing member 4 is attached in an arrangement close to the outer panel 10 of the side door 1, the energy absorbing member indicates that the outer panel 10 is pushed more than a certain amount when an external force such as hand pushing acts on the outer panel 10. 4 exhibits the effect of suppressing. For this reason, the tension rigidity of the outer panel 10 is substantially increased.

As a means for improving the tension rigidity of the outer panel 10, the energy absorbing member 4 is effectively utilized, and it is not necessary to separately add a dedicated component for improving the tension rigidity. It is possible to eliminate the necessity of increasing the tension rigidity reinforcement 3 and increasing the thickness of the outer panel 10. Therefore, an increase in weight and an increase in manufacturing cost can be suitably suppressed.
In addition, in the present embodiment, as described in the “Summary of the Invention” section, in the region where the tension rigidity reinforcement 3 is provided, the effect of increasing the rigidity around the connection portion with the energy absorbing member 4 is increased. The effect of improving the noise / vibration damping performance by connecting the tension rigidity reinforcement 3 and the impact beam 2 by using the energy absorbing member 4 having the property, and stable attachment of the energy absorbing member 4 are intended. Effects that can be obtained.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the side door structure of the vehicle according to the present invention can be variously modified within the scope intended by the present invention.

The specific method of attaching the energy absorbing member to the tension rigidity reinforcement and the impact beam is not limited. You may employ | adopt means, such as making it adhere | attach after screwing or engaging both the upper part and the lower part of an energy absorption member with the said 2 member. In short, it is sufficient that the energy absorbing member is attached in a state of being stretched over both the tension rigidity reinforcement and the impact beam.
The energy absorbing member is not limited to one made of foamed resin.

A Vehicle side door structure 1 Side door 10 Outer panel (side door)
2 Impact beam 3 Reinforcement of tension stiffness

Claims (1)

A tension rigidity reinforcement disposed in the side door of the vehicle and extending in the vehicle front-rear direction, and being bonded to the outer panel of the side door;
An impact beam disposed in the side door at a height different from the tension rigidity reinforcement and extending in the vehicle longitudinal direction;
A flexible energy absorbing member attached to both the tension stiffness reinforcement and the impact beam and disposed in the side door;
With
The energy absorbing member includes a recess into which the impact beam is fitted, and a pair of engagement members that are formed on both sides of the recess in the vehicle width direction and engage the impact beam so as to sandwich the impact beam from both sides in the vehicle width direction. A joint section is provided,
The vehicle side door structure according to claim 1, wherein the energy absorbing member is arranged in a non-contact approach to the outer panel .

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