JP2005254872A - Safety structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety structure for a vehicle capable of reducing an impact on a seated person and ensuring a survival space even in a side collision of the vehicle. <P>SOLUTION: Door reinforcing members 27A and 27B to reduce collapse of a vehicular door 2 in a side impact of a vehicle are provided in the vehicular door 2, and impact absorbing members 26A and 26B to absorb the impact by the collision of the vehicular door 2 on a driver DV are mounted thereabove. The load applied to the vehicular door 2 in the side collision of the vehicle is transmitted to a floor panel FP of the vehicle via the door reinforcing members 27A and 27B and a seat reinforcing member 18 to reduce deformation of the vehicular door 2 and a vehicular seat 1. Ingress of the vehicular door 2 into a cabin is suppressed, the survival space of the driver DV can be ensured, compression of the impact absorbing members 26A and 26B provided inside the vehicular door 2 is reduced, and the function of reducing the impact on the driver DV can be maintained. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle safety structure that reduces damage to a seated person of a vehicle seat at the time of a side collision of the vehicle.

As a prior art, there is a vehicle door in which an impact absorbing member that functions at the time of a side collision is attached inside the vehicle door (see, for example, Patent Document 1). According to this prior art, since the deformed vehicle door presses the seat occupant through the impact absorbing member due to the collision of the other vehicle with the side surface of the vehicle, the impact from the vehicle door to the seat occupant due to the collision can be reduced. It is. However, in this configuration, when the impact of a collision with another vehicle is large, the vehicle door is significantly deformed at an early stage, narrowing the living space for the seated person, and the impact absorbing member disposed inside the vehicle door is compressed and deformed. However, the function of absorbing shock may be reduced before pressing the seated person.
Japanese Patent No. 3314247 (FIG. 2)

  The present invention has been completed based on the above circumstances, and provides a vehicle safety structure that can reduce the impact on a seated person and secure a living space even in the event of a side collision of a vehicle. Objective.

  As means for achieving the above object, the invention according to claim 1 is a door reinforcing member that is mounted in a vehicle door and reduces collapse in the thickness direction of the vehicle door at the time of a side collision of the vehicle. A vehicle seat disposed on the side of the vehicle, and a seat reinforcing member attached to extend in the width direction of the vehicle seat, and an impact absorbing member provided in the vehicle door, and joined to the vehicle door at the time of a side collision of the vehicle The load is transmitted to the vehicle floor panel via the door reinforcing member and the seat reinforcing member, and the impact applied to the seated person of the vehicle seat from the vehicle door is reduced by the impact absorbing member. The vehicle safety structure is characterized.

  The invention according to claim 2 provides the vehicle safety structure according to claim 1, wherein the shock absorbing member is disposed above the door reinforcing member.

  The invention according to claim 3 is characterized in that at least one of the door reinforcing member and the impact absorbing member is divided into two in the thickness direction of the vehicle door. The safety structure was used.

  The invention according to claim 4 further includes an airbag device that is deployed between the vehicle door and a shoulder of the seated person. A safe structure was adopted.

<Invention of Claim 1>
The load applied to the vehicle door at the time of a side collision of the vehicle is transmitted to the vehicle floor panel via the door reinforcing member and the seat reinforcing member, and is applied to the seat of the vehicle seat from the vehicle door by the impact absorbing member. The structure that reduces impact reduces the deformation of the vehicle door and vehicle seat at the time of a side collision, secures a seating person's living space, and reduces the compression of the impact absorbing member provided inside the vehicle door. In addition, the function of reducing the impact on the seated person can be maintained.

<Invention of Claim 2>
Since the shock absorbing member is arranged above the door reinforcing member, the shock absorbing member comes into contact with the waist of the strong seated person at the time of a side collision, so that damage to the seated person can be further reduced. it can.

<Invention of Claim 3>
At least one of the door reinforcement member and the impact absorbing member is divided into two in the thickness direction of the vehicle door, so that a window glass attached to the vehicle door so as to be vertically movable can enter between them. Thus, the door reinforcing member or the shock absorbing member can be arranged at the optimum position without being restricted by the position of the window glass, and damage to the seated person can be further reduced.

<Invention of Claim 4>
By adopting a configuration that includes an airbag device that is deployed between the vehicle door and the shoulder of the seated person, the upper body of the seated person that sways in the width direction of the vehicle due to a side collision causes damage to the vehicle door. Can be reduced.

<First Embodiment>
A first embodiment of the present invention will be described with reference to FIGS. In the description, the lower left in FIG. 1 is the front of the vehicle, and the left in FIG. 2 is the outside of the passenger compartment. As shown in FIG. 1, the vehicle seat 1 is disposed on the side of the vehicle door 2, and is for example seated by a driver DV (shown in FIG. 2). The vehicle seat 1 is attached to a seat cushion 11 on which a driver DV is seated, a seat back 12 that is pivotable in the front-rear direction with respect to the seat cushion 11, and an upper end portion of the seat back 12, and changes a vertical position. It has a headrest 13 that can be used. The seat cushion 11 and the seat back 12 are configured by covering the surface of a cushion material formed of a flexible urethane foam or the like with a skin formed of fiber, natural leather, synthetic leather, or the like.

  An upper rail 15 (to be described later) of the seat cushion 11 and a seat back frame (not shown) of the seat back 12 are connected to each other by a reclining adjuster 14 so that the seat back 12 is at a desired angle with respect to the seat cushion 11. Can be fixed. A pair of left and right lower rails 16 formed of a metal material are fixed to a vehicle floor panel FP formed of a metal plate by bolting at a seat rail bracket 16a. A pair of left and right upper rails 15 which are also formed of a metal material and are attached to the lower surface of the seat cushion 11 are engaged with the lower rail 16 so as to be movable relative to each other, whereby the seat cushion 11 and the seat back 12 are moved to the floor panel FP. It is attached so that it can move in the front-rear direction.

  As shown in FIG. 2, a hollow side sill SS is connected to the side end portion of the above-described floor panel FP by welding or the like, thereby improving its rigidity. In addition, a floor tunnel TP through which a transmission or a propeller shaft (not shown) passes is formed at the center of the vehicle of the floor panel FP, and both lower side surfaces are connected to improve the rigidity. Further, a bridge BP formed of a metal plate having high rigidity is provided (only a half in the width direction is shown in FIG. 2). The bridge BP is attached to the floor tunnel TP by welding at bent portions formed at both end portions.

  A front connecting rod 17 is attached to the front portions of the left and right upper rails 15 so as to connect them to each other. Further, the rear portions of the upper rails 15 are connected to each other by a seat reinforcing member 18 extending in the width direction of the vehicle seat 1. The sheet reinforcing member 18 is made of a metal material or a hard synthetic resin material, but is not limited to this. The sheet reinforcing member 18 is formed in a hollow shape and buckles against a side impact caused by a side collision of the vehicle. High rigidity so as not to The sheet reinforcing member 18 is attached to the upper rail 15 by welding or caulking.

  On the other hand, the vehicle door 2 has a door frame 21 having a sash frame 21a in which a window glass 24 is movably fitted in an up-and-down direction and an outer panel 21b connected to the lower side of the vehicle. An inner panel 22 fixed by welding, bolting, or the like, and a trim board 23 fitted in the vehicle interior of the inner panel 22 are provided. The door frame 21 and the inner panel 22 are mainly formed of a metal material, and the trim board 23 is integrally formed of a synthetic resin material.

  The inner panel 22 has an electric motor 25a, and a window regulator 25 for moving the window glass 24 in the vertical direction is attached. The window regulator 25 is connected to the lower part of the window glass 24 by screws or caulking. By the window regulator 25, the window glass 24 can be stored between the outer panel 21 b and the inner panel 22 of the vehicle door 2.

  On the surface of the outer panel 21b facing the inner panel 22, a bendable outer impact absorbing member 26A formed in a hollow shape by a synthetic resin material or formed in a solid shape by a foam or the like made of urethane or a synthetic resin material. Are joined and accommodated in the vehicle door 2. The outer shock absorbing member 26A is installed at the waist position of the driver in the vertical direction, and extends in the front-rear direction of the vehicle, as shown in FIG. In any position of the throat, it is possible to contact the waist of the seated person. The outer shock absorbing member 26A may be fixed on the outer panel 21b with an adhesive, or may be attached to a reinforcement (not shown) fixed to the outer panel 21b by welding, bolting, or the like.

  Further, the outer panel 21b is formed of a solid material such as a metal material, a foamed urethane material or a synthetic resin material, or is formed in a hollow shape with a metal material or a synthetic resin material. 27A is fixed so as to be positioned below the outer impact absorbing member 26A, and is accommodated in the vehicle door 2. The outer door reinforcing member 27A has higher rigidity than the outer impact absorbing member 26A, extends in the front-rear direction of the vehicle as shown in FIG. 1, and extends over a wide range of the vehicle door 2 at the time of a side collision of the vehicle. It is possible to reduce crushing in the thickness direction. The outer door reinforcing member 27A may be fixed on the outer panel 21b with an adhesive similarly to the outer shock absorbing member 26A, or may be welded, bolted, etc. on a reinforcement (not shown) fixed to the outer panel 21b. It may be attached.

  FIG. 7 shows an example of the outer door reinforcing member 27A. The outer door reinforcing member 28 is integrally formed of a metal material or a synthetic resin material, and has a shape extending in the front-rear direction of the vehicle. The outer door reinforcing member 28 projects from the flange portion 28a toward the vehicle interior. A pair of throttle portions 28b is provided. A concavity 28c that is continuous in the front-rear direction is formed between the throttle portions 28b, and as shown in the figure, the cross section is intricately shaped so that it has rigidity against the load on the vehicle side surface. Yes. The outer door reinforcing member 28 is joined to the outer panel 21b at the flange portion 28a.

  FIG. 8 shows another example of the outer door reinforcing member 27A. The outer door reinforcing member 29 is also integrally formed of a metal material or a synthetic resin material, has a substantially stepped shape so as to protrude from the outer panel 21b toward the vehicle interior, and a pair of convex portions 29a are provided on the top portion. The recess 29b is formed between the protrusions 29a to increase the rigidity. Similarly to the outer door reinforcing member 28, a flange portion 29c is formed on the joint surface to the outer panel 21b, and a rib 29d is formed at a portion protruding toward the vehicle interior so as to be continuous with the flange portion 29c. In addition, you may use the door reinforcement members 28 and 29 as an inner door reinforcement member mentioned later.

  Returning to the description of FIG. The inner impact absorbing member 26B is formed in the same manner as the outer impact absorbing member 26A, and its rigidity is set to be equal. Further, the inner door reinforcing member 27B is formed in the same manner as the outer door reinforcing member 27A, and its rigidity is set to be equal. These are fixed on the surface of the trim board 23 facing the outer panel 21b by an adhesive or fitting, and are accommodated in the vehicle door 2, respectively. A housing hole 22a is formed in a portion of the inner panel 22 facing the outer shock absorbing member 26A and the outer door reinforcing member 27A, and the inner shock absorbing member 26B and the inner door are inserted into the housing hole 22a. A reinforcing member 27 </ b> B is attached on the trim board 23. In FIG. 2, the impact absorbing members 26A and 26B and the door reinforcing members 27A and 27B are schematically shown, and the mounting method thereof is not accurately illustrated.

  As described above, the door reinforcing members 27A and 27B are attached in the vehicle door 2 to reduce the collapse of the vehicle door 2 in the thickness direction, and the shock absorbing members 26A and 26B are respectively in the vehicle door 2 and the door reinforcing members 27A. 27B, the impact applied to the driver DV from the vehicle door 2 at the time of a side collision of the vehicle is reduced. Further, the impact absorbing members 26A and 26B and the door reinforcing members 27A and 27B are each divided into two in the thickness direction of the vehicle door 2, and between the outer impact absorbing member 26A and the inner impact absorbing member 26B, and between the outer door reinforcing member 27A and the inner door. The reinforcing member 27B faces the reinforcing member 27B while maintaining a predetermined interval.

  The interval between them is set to such a size that when the window glass 24 described above is lowered, the window glass 24 can enter between them, and a link (not shown) of the window regulator 25 can be operated without any trouble. Although not shown in FIGS. 1 and 2, an airbag 40 (on the ceiling (not shown) of the vehicle is deployed between the vehicle door 2 and the shoulder SH of the driver DV in the event of a collision. 6) is provided.

  As described above, the vehicle safety structure AS according to the present embodiment includes the door reinforcing members 27A and 27B, the impact absorbing members 26A and 26B, the seat reinforcing member 18, the floor tunnel TP of the floor panel FP, and the airbag 40. ing. In order to transmit the impact load applied to the vehicle door 2 to the floor panel FP at the time of a side collision of the vehicle, as shown in FIG. 2, among the configurations of the vehicle safety structure AS, door reinforcement members 27A and 27B, seat reinforcement The member 18 and the floor tunnel TP of the floor panel FP are arranged in a straight line in the vehicle width direction.

  As shown in FIG. 2, when another vehicle AM approaches from the side of the vehicle and collides with the vehicle door 2, the outer panel 21b of the vehicle door 2 pushes the outer shock absorbing member 26A and the outer door reinforcing member 27A while moving the vehicle. It is deformed by a slight amount toward the room (right side in FIG. 2) (shown in FIG. 3). The outer shock absorbing member 26A and the outer door reinforcing member 27A pressed from the outer panel 21b abut against the inner shock absorbing member 26B and the outer door reinforcing member 27B, respectively, but the door reinforcing members 27A and 27B have sufficient rigidity. The trim board 23 is pushed toward the vehicle interior while maintaining the thickness of the vehicle door 2 at the time of contact with each other without being crushed, and the trim board 23 is moved toward the seat reinforcing member 18 of the vehicle seat 1. It abuts on the end (shown in FIG. 4).

  The seat reinforcing member 18 pressed by the trim board 23 does not buckle because it has sufficient rigidity, and moves toward the vehicle interior while deforming the connected upper rail 15. By moving toward the interior of the vehicle, the end of the seat reinforcing member 18 toward the interior of the vehicle comes into contact with the side surface of the floor tunnel TP of the floor panel FP (shown in FIG. 5). Thereby, the impact load applied to the vehicle door 2 from the other vehicle AM at the time of a side collision is transmitted to the floor panel FP via the door reinforcing members 27A and 27B and the seat reinforcing member 18, and the vehicle door 2 and the vehicle seat 1 are transmitted. The impact absorbing member 26A disposed inside the vehicle door 2 can minimize the deformation with respect to the so-called primary collision energy, which is intended to deform the vehicle, and can secure a living space for the driver DV. , 26B is not compressed and deformed.

  Here, the trim board 23 that has moved toward the interior of the vehicle comes into contact with the waist of the driver DV sitting on the seat cushion 11 due to the inertial force, so that the shock absorbing members 26A and 26B located at the same position are in contact therewith. By bending, so-called secondary collision energy can be absorbed, and the impact applied to the driver DV from the vehicle door 2 can be reduced. Further, the collision progresses and the upper body of the driver DV tilts toward the vehicle door 2, but the airbag 40 is between the vehicle door 2 and the shoulder SH of the driver DV from the ceiling of the vehicle. In order to deploy, so-called tertiary collision energy is absorbed, and damage to the driver DV is reduced.

  According to the present embodiment, the load applied to the vehicle door 2 at the time of a side collision of the vehicle is transmitted to the vehicle floor panel FP via the door reinforcing members 27A and 27B and the seat reinforcing member 18. Further, it is possible to reduce deformation of the vehicle door 2 at the time of a side collision, minimize entry into the interior of the vehicle interior, and secure a living space for the driver DV. Further, by reducing the deformation of the vehicle door 2, it is possible to prevent the impact absorbing members 26A and 26B provided therein from being compressed and to retain the function of reducing the impact on the driver DV. Further, since the shock absorbing members 26A and 26B are arranged above the door reinforcing members 27A and 27B, the shock absorbing members 26A and 26B come into contact with the lumbar portion of the robust seated person at the time of a side collision. Further, damage to the driver DV can be reduced.

  The door reinforcing members 27A and 27B and the shock absorbing members 26A and 26B are arranged in the thickness direction of the vehicle door 2 so that the window glass 24 or the window regulator 25 attached to the vehicle door 2 so as to be movable up and down can enter between them. By being divided into two parts, the door reinforcing members 27A and 27B and the shock absorbing members 26A and 26B can be arranged at their optimum positions without being restricted by the positions of the window glass 24 and the like, and to the driver DV. Damage can be further reduced. Further, since the door reinforcing members 27A and 27B and the shock absorbing members 26A and 26B are provided inside the vehicle door 2, they cannot be seen from the outside, and the appearance of the vehicle interior is not impaired.

  Further, since the airbag 40 that is deployed between the vehicle door 2 and the shoulder portion SH of the driver DV is provided, the upper side of the driver DV that does not come into contact with the shock absorbing members 26A and 26B due to a side collision. It is possible to reduce damage in which the body swings in the vehicle width direction and collides with the vehicle door 2. Further, since the airbag 40 covers only the shoulder portion of the driver DV, the inflator and the like can be reduced in size, and the weight and manufacturing cost can be reduced.

Second Embodiment
FIG. 9 shows a second embodiment of the present invention. When the lowest position by the movement of the window glass 24 and the window regulator 25 is above the upper ends of the door reinforcing members 27A and 27B shown in FIG. 2, as shown in FIG. 9, the first embodiment The door reinforcing members 27A and 27B may be integrated into the door reinforcing member 30, and only the shock absorbing members 26A and 26B may be divided into two in the thickness direction of the vehicle door 2. The door reinforcing member 30 has the same rigidity as the door reinforcing members 27A and 27B, and is joined to either or both of the outer panel 21b and the trim board 23 by bonding, welding, bolting, or the like.

<Third Embodiment>
FIG. 10 shows a third embodiment of the present invention. For example, in the case of a vehicle having a small secondary collision energy borne by the shock absorbing members 26A and 26B at the time of a side collision of the vehicle due to the action of the side airbag of the vehicle, etc., as shown in FIG. The shock absorbing member may be only 26B, the outer door reinforcing member 31 may be joined to the outer panel 21b, and only the door reinforcing members 31, 27B may be divided into two in the thickness direction of the vehicle door. The outer door reinforcing member 31 is formed in a size facing the inner shock absorbing member 26B and the inner door reinforcing member 27B, and has the same rigidity as the door reinforcing members 27A and 27B. In the present embodiment, since the secondary collision energy is small, the impact applied to the driver DV from the vehicle door 2 can be reduced mainly by the inner impact absorbing member 26B.

<Fourth embodiment>
FIG. 11 shows a fourth embodiment of the present invention. In the third embodiment, when the lowermost position due to the movement of the window glass 24 and the window regulator 25 is above the upper end portion of the inner door reinforcing member 27B shown in FIG. 10, as shown in FIG. Furthermore, it is good also as the door reinforcement member 32 which united the door reinforcement members 31 and 27B. The door reinforcing member 32 has the same rigidity as the door reinforcing members 27A and 27B, and is joined to both the outer panel 21b and the trim board 23 by bonding, welding, bolting, or the like.

<Fifth Embodiment>
FIG. 12 shows a fifth embodiment of the present invention. In the first embodiment, when it is difficult to form the accommodation hole 22a in the inner panel 22 due to the layout of other members to be attached or the necessity for its strength, the inner shock absorbing member 26B and the inner door reinforcing member 27B are respectively The inner shock absorbing members 26B1 and 26B2 and the inner door reinforcing members 27B1 and 27B2 are divided into two parts, and the inner shock absorbing member 26B1 and the inner door reinforcing member 27B1 are joined to the outside of the inner panel 22A without the receiving hole 22a. The inner shock absorbing member 26B2 and the inner door reinforcing member 27B2 are joined to the vehicle interior of 22A or the vehicle exterior of the trim board 23. Both the inner shock absorbing member 26B2 and the inner door reinforcing member 27B2 may be attached to the inner side of the inner panel 22A or the outer side of the trim board 23, or one of them may be joined to the inner side of the inner panel 22A. The other may be attached to the outside of the trim board 23 in the passenger compartment.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention. Various modifications can be made without departing from the scope of the invention.
(1) The present invention can be applied not only to a driver's seat of a vehicle but also to a passenger seat or a rear seat.
(2) The seat reinforcing member may be provided so as to connect a pair of left and right brackets constituting the reclining adjuster of the vehicle seat, or may be attached to the seat back frame.
(3) The impact absorbing member is not necessarily disposed above the door reinforcing member, and can be appropriately disposed in consideration of the seated person and the position of each member in the vehicle.
(4) In the first embodiment, in the case of a vehicle having a small secondary collision energy borne by the shock absorbing members 26A and 26B, the outer shock absorbing member 26A is removed, and instead there, it is equivalent to the outer shock absorbing member 26A. You may arrange | position the door reinforcement member of the magnitude | size.
(5) In the first embodiment, the inner impact absorbing member 26B and the inner door reinforcing member 27B may be attached to the inner panel 22 by using a fracket or the like after being inserted into the accommodation hole 22a.

It is a perspective view of the driver's seat using the vehicle safety structure according to the first embodiment. FIG. 2 is a cross-sectional view of the driver's seat shown in FIG. 1 cut in the vehicle width direction and viewed from the front of the vehicle. It is sectional drawing which shows the place which the other vehicle collided with the vehicle shown in FIG. 2 from the side surface. It is sectional drawing which shows the place where the vehicle door contact | abutted to the sheet | seat reinforcement member of the vehicle seat by the collision of the other vehicle. It is sectional drawing which shows the place where the sheet | seat reinforcement member contacted the floor panel by the collision of the other vehicle. It is sectional drawing which shows the place which the airbag act | operated by the collision of the other vehicle. It is a perspective view which shows an example of a door reinforcement member. It is a perspective view which shows the other example of a door reinforcement member. It is sectional drawing of the driver's seat using the vehicle safety structure by 2nd Embodiment. It is sectional drawing of the vehicle door using the vehicle safety structure by 3rd Embodiment. It is sectional drawing of the vehicle door using the vehicle safety structure by 4th Embodiment. It is sectional drawing of the vehicle door using the vehicle safety structure by 5th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle seat 2 ... Vehicle door 18 ... Seat reinforcement member 26A, 26B, 26B1, 26B2 ... Shock absorption member 27A, 27B, 27B1, 27B2, 28, 29, 30, 31, 32 ... Door reinforcement member 40 ... Air bag DV ... Driver SH ... Shoulder FP ... Floor panel AS ... Vehicle safety structure

Claims (4)

A door reinforcing member attached in the vehicle door to reduce crushing in the thickness direction of the vehicle door at the time of a side collision of the vehicle;
A vehicle seat disposed on the side of the vehicle door, a seat reinforcing member attached to extend in the width direction thereof, and an impact absorbing member provided in the vehicle door,
A load applied to the vehicle door at the time of a side collision of the vehicle is transmitted to the floor panel of the vehicle via the door reinforcing member and the seat reinforcing member, and from the vehicle door to the vehicle seat by the shock absorbing member. A vehicle safety structure characterized by reducing the impact applied to a seated person. The vehicle safety structure according to claim 1, wherein the shock absorbing member is disposed above the door reinforcing member. 3. The vehicle safety structure according to claim 1, wherein at least one of the door reinforcing member and the impact absorbing member is divided into two in the thickness direction of the vehicle door. The vehicle safety structure according to any one of claims 1 to 3, further comprising an airbag device that is deployed between the vehicle door and a shoulder portion of a seated person.

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