JP6467397B2 - Body side structure - Google Patents

Description

  The present invention relates to a mounting structure for a side collision pad that protects an occupant from an impact at the time of a side collision.

  Patent Document 1 describes a structure in which a side collision pad that protects an occupant from an impact at the time of a side collision is attached so as to straddle a reinforcing beam member that extends in the front-rear direction inside the door.

Special table 2011-513136 gazette

  However, in Patent Document 1 described above, since the side impact pads are fixed to the beam member using a plurality of clasps and clips, the number of parts is large, the number of parts is increased, and the mounting structure is further simplified. Is desired.

  The present invention has been made in view of the above-described problems, and an object thereof is to realize a vehicle body side portion structure that can simplify the mounting structure of the side collision pad while ensuring occupant protection performance.

In order to solve the above problems and achieve the object, a vehicle body side structure according to the present invention includes a reinforcing member that receives a shock at the time of a side collision and a side collision that protects an occupant from the impact at the time of a side collision. A vehicle body side structure provided with a pad, wherein the reinforcing member includes a first reinforcing member extending in the front-rear direction, and a second reinforcing member extending in the front-rear direction below the first reinforcing member. The first reinforcing member includes a main body portion, a branch portion that vertically branches from the main body portion and extends in the front-rear direction, and a connecting portion that connects the branch portions, and the side collision pad Is disposed so as to be bridged between the first reinforcing member and the second reinforcing member, and is disposed so as to straddle the first reinforcing member, and the first reinforcing member A pad main body fixed to the bifurcation, and extending downward from the pad main body to the second Possess an extension portion which is engaged to the strength member, the pad body portion and a fixed portion and a recess, said recess is fitted to the branch portion of the first reinforcing member, wherein the fixing unit includes The branch portion of the first reinforcing member and the connecting portion are fixed at a position where they are connected .

  ADVANTAGE OF THE INVENTION According to this invention, the mounting structure of a side collision pad can be simplified while ensuring passenger | crew protection performance, and attachment work can be made easy.

It is the figure (a) which looked at the inside of the door of the vehicle of this embodiment from the vehicle outside, and the figure (b) which looked from the vehicle inside. It is the enlarged view (a) of the side collision pad of Fig.1 (a), and the enlarged view (b) of the state which abbreviate | omitted the reinforcement member. It is a figure which shows the attachment structure of the side collision pad of this embodiment. It is a figure which shows the structure and attachment structure of the extension part of the side collision pad of this embodiment, and the attachment bracket of a reinforcement member.

  Hereinafter, a vehicle body side part structure according to an embodiment of the present invention will be described with reference to the accompanying drawings.

<Door structure>
First, an embodiment in which the vehicle body side part structure of the present invention is applied to a door of an automobile will be described with reference to FIGS.

  FIG. 1 is a view (a) of an inner door panel viewed from the outside of the vehicle and a view (b) of the inside of the vehicle door of the present embodiment as viewed from the vehicle inside. FIG. 2A is an enlarged view of the side collision pad of FIG. 1A and an enlarged view of a state where the reinforcing member is omitted.

  In the present embodiment, a structure in which a side impact pad is attached to a passenger side door among the doors of an automobile will be described. However, the present invention is not limited to this, and the driver side door and the left and right sides of the rear seat side are described. It is also applicable to other doors (including sliding doors).

  The vehicle door 1 of the present embodiment is applied to a passenger side door such as a minicar. The door 1 of the present embodiment has an inner door panel 2 in which a plurality of openings 6 are formed. The first reinforcing member 3, the second reinforcing member 4, and the side of the inner door panel 2 are arranged on the side of the vehicle outer side. A bump pad 5 is attached. The plurality of openings 6 include a first opening 6a on the front side in the vehicle longitudinal direction that is long in the vehicle longitudinal direction and a second opening 6b on the rear side in the vehicle longitudinal direction that is long in the vertical direction of the vehicle. It is provided to attach auxiliary equipment such as switches. Moreover, the 2nd opening part 6b is provided as a work hole for attaching the side collision pad 5 mentioned later other than attachment of the said auxiliary machinery.

  The first reinforcing member 3 is an upper impact beam that extends in the longitudinal direction of the vehicle body from the front end portion 2a to the rear end portion 2b of the inner door panel 2 and is disposed on the upper side from the center portion of the inner door panel 2 in the vertical direction of the vehicle body. . The first reinforcing member 3 includes a beam main body portion 31 extending in the longitudinal direction of the vehicle body from the front end portion 2a of the inner door panel 2, an upper branch portion 32 and a lower branch portion 33 branching up and down from the beam main body portion 31, and A beam connecting portion 34 for connecting the upper branch portion 32 and the lower branch portion 33 is provided. The beam connecting portion 34 includes first to third connecting portions 34a to 34c that connect the upper branch portion 32 and the lower branch portion 33 at a plurality of locations (for example, three locations) in the vehicle front-rear direction. Have.

  The upper branch portion 32, the lower branch portion 33, and the beam connecting portion 34 in the first reinforcing member 3 have a concavo-convex cross section formed by pressing a metal plate material, mainly at the time of a side collision or the like. It is provided to protect the occupant from the deformation of the door panel 2 toward the vehicle interior under impact applied to the upper part of the door.

  The second reinforcing member 4 is a lower impact beam that extends in the longitudinal direction of the vehicle body from the front end portion 2a to the rear end portion 2b of the inner door panel 2 and is disposed at the lower end from the center portion of the inner door panel 2 in the vertical direction of the vehicle body. is there. The second reinforcing member 4 is a hollow cylindrical metal pipe, and is provided to protect the occupant from deformation of the door panel to the vehicle interior due to impact applied to the lower part of the door mainly at the time of a side collision. Yes. A mounting bracket 41 having a wave shape (see FIG. 4E) into which an extension 52 of a side bump pad 5 described later is inserted is joined to the second reinforcing member 4 by welding or the like.

  The side impact pad 5 is a second opening 6b formed in the inner door panel 2 and is arranged at the waist position of the seated occupant, and protects the occupant from the impact applied to the door panel 2 mainly during a side collision. It is provided for. The side bump pad 5 is disposed between the first reinforcing member 3 and the second reinforcing member 4, and has a pad main body portion 51 that protects an occupant and an extension portion 52 that extends downward from the pad main body portion 51. . The side bump pad 5 is an elastically deformable component in which the pad main body 51 and the extension 52 are integrally formed in a hollow box shape with resin or the like. The pad main body 51 includes a fixing portion 51a that is fixed to the attachment hole 33a of the lower branching portion 33 of the first reinforcing member 3 with a clip or the like, and an inner side (vehicle And a recess 51b that is fitted so as to wrap around from the indoor side. The attachment hole 33a of the lower branch part 33 is a through hole formed in the flat part of the beam member, and the strength at which the lower branch part 33 and the third connection part 34c in the first reinforcing member 3 are connected is high. It is provided in the vicinity of a position that can be secured. The pad main body 51 has a larger size as viewed from the vehicle width direction than the extension 42, and has a larger thickness as viewed from the front-rear direction of the vehicle body.

  The extension portion 52 has an engaging portion 53 that is engaged with the mounting bracket 41 of the second reinforcing member 4. The engagement portion 53 has a pair of first engagement pieces 53a provided at the lower end portion of the extension portion 52, and a second engagement piece 53b provided between the first engagement pieces 53a. The first engagement piece 53 a and the second engagement piece 53 b are engaged by being inserted into the mounting bracket 41. Details of the mounting structure of the extension 52 will be described later.

<Side bump pad mounting structure>
Next, with reference to FIG. 3 and FIG. 4, the attachment structure of the side collision pad of this embodiment is demonstrated.

  FIG. 3 is a view showing a mounting structure of the side collision pad according to the present embodiment. FIG. 4 is a view showing the configuration and the mounting structure of the extension part of the side collision pad and the mounting bracket of the reinforcing member according to the present embodiment. In particular, FIGS. 4A and 4B are perspective views of the mounting structure of the extension portion of the side bump pad and the mounting bracket of the reinforcing member of the present embodiment as viewed from the outside of the vehicle width and the inside of the vehicle width. 4C and 4D are perspective views of the shape of the engaging portion of the extension portion as seen from the outside of the vehicle width and the inside of the vehicle width. 4 (e) is a perspective view of the mounting bracket, and FIG. 4 (f) is a cross-sectional view taken along the line AA in FIG. 4 (a).

  In the side bump pad 5, the pad main body 51 is fixed to the fixing portion 33 a of the lower branching portion 33 of the first reinforcing member 3, and the engaging portion 53 of the extension 52 is the mounting bracket 41 of the second reinforcing member 4. And is attached so as to be bridged between the lower branch portion 33 of the first reinforcing member 3 and the second reinforcing member 4. Specifically, the side collision pad 5 is fitted and extended so that the concave shape portion of the engaging portion 51b of the pad main body portion 51 wraps around the side surface of the lower branching portion 33 from the inner side (vehicle interior side) in the vehicle width direction. The first and second engaging pieces 53 a and 53 b of the engaging portion 53 of the portion 52 engage with the mounting bracket 41 of the second reinforcing member 4. The pad main body 51 fixed to the first reinforcing member 3 according to the deformation of the first reinforcing member 3 toward the vehicle interior is received by the first reinforcing member 3 while receiving an impact applied to the door at the time of a side collision. The passenger is protected by being pushed inside the car.

  The side bump pad 5 has a pad main body 51 inserted into the second opening 6 b of the inner door panel 2 from below the lower branch portion 33 of the first reinforcing member 3. After the first and second engaging pieces 53a and 53b are inserted into the mounting bracket 41 of the second reinforcing member 4, the recessed portion 51b is fitted into the lower branching portion 33 to thereby fix the fixing portion 51a of the pad main body portion 51. The first reinforcing member 3 is fixed by being aligned with the mounting hole 33a of the lower branch portion 33 and inserting the clip formed in the fixing hole 51a into the mounting hole 33a.

  As described above, the side collision pad 5 is arranged in the vertical direction of the vehicle body so as to be bridged between the first reinforcing member 3 and the second reinforcing member 4, and the pad main body portion 51 is disposed on the first reinforcing member 3. The lower branch part 33 is fitted to the side surface of the lower branch part 33 so as to go around from the inner side (vehicle interior side) in the vehicle width direction and is fixed to the lower branch part 33. Further, the extension 52 extending downward from the pad main body 51 is engaged with the mounting bracket 41 of the second reinforcing member 4. As described above, in order to ensure the occupant protection performance, the pad main body portion 51 is fitted to the first reinforcing member 3 and is firmly fixed with a clip or the like, while the extension portion 52 is engaged with the second reinforcing member 4. By adopting the configuration, the passenger protection performance of the side collision pad 5 can be ensured, and the mounting structure can be simplified.

  The first reinforcing member 3 includes a beam main body 31 extending from the front end 2a of the door panel 2 to the rear of the vehicle body, an upper branch 32 extending from the beam main body 31 in the vertical direction of the vehicle and extending to the rear of the vehicle, and a lower side. The pad main body 51 is fixed to a mounting hole 33 a provided in the flat surface of the lower branch 33. In this way, by fixing the pad main body 51 to the branch portion of the first reinforcing member 3 where it is easy to secure the flat portion, the side impact pad 5 can be stably fixed to the first reinforcing member 3. .

  Further, the mounting bracket 41 of the second reinforcing member 4 is a first restricting portion for restricting the displacement of the side bump pad 5 in the vehicle width direction while being engaged with the extension 52 of the side bump pad 5. Function as. As shown in FIGS. 4 (a) and 4 (b), the mounting bracket 41 as the first restricting portion is engaged with the first engaging piece 53a and the second engaging piece 53b of the engaging portion 53. In the combined state, the first engagement piece 53a is pressed to the outside in the vehicle width direction (vehicle outside), and the second engagement piece 53b is pressed to the inside in the vehicle width direction (vehicle inside) to be sandwiched. It becomes a state. In this way, with a simple configuration in which the extension 52 of the side bump pad 5 is engaged with the mounting bracket 41 of the second reinforcing member 4, the displacement of the side bump pad 5 in the vehicle width direction is restricted, and the occupant It is possible to ensure protection performance. In addition, when it is set as the structure which makes the attachment bracket 41 of the 2nd reinforcement member 4 an engaging piece and engages the engaging part 53 of the extension part 52 of the side collision pad 5 as an attachment bracket, the engaging part 53 is the It functions as a first restriction unit.

  Further, the mounting bracket 41 of the second reinforcing member 4 is a second restricting portion for restricting the displacement of the side impact pad 5 in the longitudinal direction of the vehicle body while being engaged with the extension 52 of the side impact pad 5. Function as. As shown in FIG. 4E and FIG. 4F, the mounting bracket 41 as the second restricting portion includes a first wall surface 41a with which the first engagement piece 53a in the mounting bracket 41 abuts, The second wall surface 4b with which the second engagement piece 53b comes into contact has a wave shape having a step in the vehicle width direction, and the first engagement piece 53a and the second engagement piece 53b are engaged with the mounting bracket 41. In this state, wall portions are formed on the front and rear end faces of the first engagement piece 53a and the second engagement piece 53b. Thus, the engagement portion 53 of the side collision pad 5 is provided with the first engagement piece 53a and the second engagement piece 53b arranged in a tooth shape in the longitudinal direction of the vehicle body at predetermined intervals, and the second reinforcement The mounting bracket 41 of the member 4 is provided with a wave-shaped step where the first engagement piece 53a and the second engagement piece 53b are engaged with each other, as shown in FIGS. 4 (a) and 4 (b). As described above, in a state where the engaging portion 53 of the side bump pad 5 is engaged with the mounting bracket 41, the first engaging piece 53a, the first wall surface 41a of the mounting bracket 41, and the second engaging piece 53b The side wall pads 41b are in a positional relationship such that they are alternately meshed with each other, and the front and rear end surfaces of the first and second engaging pieces 53a, 53b are in contact with the wave-shaped stepped portion of the mounting bracket 41, and the side impact pads It is possible to restrict the displacement of the five extension portions 52 in the longitudinal direction of the vehicle body. Thus, the first engagement piece 53a and the second engagement piece are formed in the mounting bracket 41 of the second reinforcing member 4 so as to form a wave-shaped step and are arranged in the tooth shape of the engagement portion 53 of the side bump pad 5. With the simple configuration of engaging 53b, the displacement of the side bump pad 5 in the longitudinal direction of the vehicle body is restricted, and the pad main body 51 around the fixed portion 51a of the side bump pad 5 is prevented from rotating or falling off. It is possible to ensure passenger protection performance. In addition, when it is set as the structure which makes the attachment bracket 41 of the 2nd reinforcement member 4 an engaging piece, and makes the engaging part 53 of the side collision pad 5 mutually engage as an attachment bracket, the engaging part 53 is 2nd. Functions as a regulation unit. When the mounting bracket 41 is an engagement piece and the engagement portion 53 of the extension portion 52 is a mounting bracket, the mounting bracket 41 has a tooth shape and the engagement portion 53 of the extension portion 52 has a wave shape. Good.

  Further, the side impact pad 5 is attached from the vehicle interior side of the inner door panel 2. The side bump pad 5 is inserted into the second opening 6b of the door panel 2 and the pad main body 51 is inserted into the mounting bracket 41 of the second reinforcing member 4 after the pad main body 51 is inserted into the mounting bracket 41 of the second reinforcing member 4. The clip 51 of the fixing portion 51 a is inserted into the attachment hole 33 a of the lower branch portion 33 of the first reinforcing member 3 and fixed. As described above, a work hole for attaching the pad body 51 of the side impact pad 5 is formed in the door panel 2 and the mounting bracket 41 is provided below the work hole, so that a sufficiently large work hole cannot be secured. Even if it is a case, after inserting the engaging part 53 of the extension part 52 in the attachment bracket 41, it is possible to attach the side collision pad 5 by a simple operation of fixing the pad main body part 51 to the attachment hole 33a. become.

  As shown in FIGS. 4C and 4D, the second engagement piece 53b of the engagement portion 53 of the side bump pad 5 is convex toward the first engagement piece 53a. Since the flat first engaging piece 53a is arranged so as to face the convex portion of the second engaging piece 53b, the engaging portion 53 of the side bump pad 5 is bent. Is easily inserted into the mounting bracket 4.

  As described above, according to the vehicle body side part structure of the present embodiment, it is possible to simplify the mounting structure of the side collision pad while ensuring the passenger protection performance, and facilitate the mounting work.

  The above-described embodiment is an example of means for realizing the present invention, and the present invention can be applied to a modified or modified embodiment described below without departing from the spirit of the present invention.

  It goes without saying that the vehicle body side part structure of the present embodiment can also be applied to vehicles other than automobiles.

[Summary of Embodiment]
<First aspect>
A vehicle body side structure in which reinforcing members 3 and 4 that receive a shock at the time of a side collision and a side collision pad 5 that protects an occupant from the shock at the time of a side collision are provided inside the door 1.
The reinforcing members 3 and 4 include a first reinforcing member 3 extending in the front-rear direction, and a second reinforcing member 4 extending in the front-rear direction below the first reinforcing member 3.
The side bump pad 5 is disposed so as to be bridged between the first reinforcing member 3 and the second reinforcing member 4,
The side bump pad 5 is disposed so as to straddle the first reinforcing member 3 in the vertical direction, the pad main body 51 fixed to the first reinforcing member 3, and the second main pad 51 extending downward from the pad main body 51. And an extension portion 52 engaged with the reinforcing member 4.

  According to the first aspect, the pad main body 51 is fitted to the first reinforcing member 3 and firmly fixed, while the extension 52 is engaged with the second reinforcing member 4. The occupant protection performance of the side collision pad 5 can be ensured and the mounting structure can be simplified.

<Second aspect>
In the first aspect, the first reinforcing member 3 includes a main body portion 31 and branch portions 32 and 33 that branch from the main body portion 31 up and down and extend in the front-rear direction.
The pad main body 51 is fixed to the branch portion 33.

  According to the second aspect, the side impact pad 5 is stably fixed to the first reinforcing member 3 by fixing the pad main body portion 51 to the branch portion of the first reinforcing member 3 that is easy to secure the flat portion. can do.

<Third Aspect>
In the first or second aspect, the second reinforcing member 4 has a mounting bracket 41 that engages with the extension 52,
The extension part 52 or the mounting bracket 41 functions as a first restriction part that restricts displacement of the side collision pad 5 in the vehicle width direction.

  According to the third aspect, the displacement of the side bump pad 5 in the vehicle width direction is restricted with a simple configuration in which the extension 52 of the side bump pad 5 is engaged with the mounting bracket 41 of the second reinforcing member 4. Thus, passenger protection performance can be ensured.

<Fourth aspect>
In the third aspect, the extension portion 52 or the mounting bracket 41 functions as a second restriction portion that restricts the displacement of the side collision pad 5 in the front-rear direction.

  According to the fourth aspect, with a simple configuration in which the extension 52 of the side bump pad 5 is engaged with the mounting bracket 41 of the second reinforcing member 4, the displacement of the side bump pad 5 in the front-rear direction is restricted. Thus, it is possible to ensure passenger protection performance.

<Fifth aspect>
In the third or fourth aspect, the extension portion 52 and the mounting bracket 41 are provided so as to alternately engage in the front-rear direction in an engaged state.

  According to the fifth aspect, the extension 52 of the side bump pad 5 and the mounting bracket 41 are engaged with each other, and the displacement of the side bump pad 5 in the vehicle width direction and the front-rear direction is restricted to protect the passenger. It becomes possible to ensure performance.

<Sixth aspect>
In the fifth aspect, one of the extension portion 52 and the mounting bracket 41 is provided with a tooth shape aligned in the front-rear direction, and the other of the extension portion 52 and the mounting bracket 41 is engaged with a wave shape step. Is provided.

  According to the sixth aspect, the tooth-shaped end faces arranged in the front-rear direction abut on the step, and the displacement of the extension portion 52 of the side bump pad 5 or the mounting bracket 41 in the front-rear direction of the vehicle body can be restricted. . In this way, with a simple configuration in which a wave-shaped step is formed in the extension 52 or the mounting bracket 41, displacement of the side bump pad 5 in the front-rear direction of the vehicle body is restricted, so that the side bump pad 5 can be rotated or dropped. It is possible to prevent and secure passenger protection performance.

<Seventh aspect>
In any one of the first to sixth aspects, the door 1 includes a door panel 2 to which the reinforcing members 3 and 4 are attached.
The door panel 2 is provided with an opening 6b that opens below the first reinforcing member 3,
The engaging portion 53 between the extension portion 52 and the second reinforcing member 4 is provided below the opening 6 b in the second reinforcing member 4.

  According to the 7th aspect, the work hole for attaching the pad main-body part 51 of the side collision pad 5 is formed in the door panel 2, and the extension part 52 of the side collision pad 5 and the 2nd reinforcement member 4 are provided under the work hole. The engagement portion 53 of the extension portion 52 is inserted into the mounting bracket 41 of the second reinforcing member 4 even when a sufficiently large working hole cannot be secured. Thereafter, the side impact pad 5 can be attached by a simple operation of fixing the pad main body 51 to the attachment hole 51a.

DESCRIPTION OF SYMBOLS 1 ... Door 2 ... Inner door panel 2a ... Front-end part 2b ... Rear-end part 3 ... 1st reinforcement member 31 ... Beam main-body part 32 ... Upper branch part 33 ... Lower branch part 33a ... Mounting hole 34 ... Beam connection part 34a ... 1st connection part 34b ... 2nd connection part 34c ... 3rd connection part 4 ... 2nd reinforcement member 41 ... Mounting bracket 41a ... 1st wall part 41b ... 2nd wall part 5 ... Side impact pad 51 ... pad main body 51a ... fixing part 51b ... recess 52 ... extension 53 ... engagement part 53a ... first engagement piece 53b ... second engagement piece 6 ... opening 6a ... first opening 6b ... first 2 openings

Claims (7)

A vehicle body side structure in which a reinforcing member that receives an impact at the time of a side collision and a side collision pad that protects an occupant from the impact at the time of a side collision are provided inside the door,
The reinforcing member includes a first reinforcing member extending in the front-rear direction and a second reinforcing member extending in the front-rear direction below the first reinforcing member,
The first reinforcing member has a main body part, a branch part that branches up and down from the main body part and extends in the front-rear direction, and a connecting part that connects the branch parts,
The side bump pad is disposed so as to be bridged between the first reinforcing member and the second reinforcing member, and is disposed so as to straddle the first reinforcing member, and the first a pad main body portion fixed to the branch portion of the reinforcing member, and an extension portion which is engaged with the second reinforcing member extending downwardly from the pad body portion possess,
The pad main body portion has a fixing portion and a concave portion, and the concave portion is fitted into the branch portion of the first reinforcing member, and the fixing portion is the branch portion and the connecting portion of the first reinforcing member. The vehicle body side structure is fixed at a position where the two are connected . The second reinforcing member has a mounting bracket that engages with the extension,
2. The vehicle body side structure according to claim 1, wherein the extension portion or the mounting bracket functions as a first restriction portion that restricts displacement of the side collision pad in a vehicle width direction. The vehicle body side part structure according to claim 2 , wherein the extension part or the mounting bracket functions as a second restricting part that restricts displacement in the front-rear direction of the side collision pad. Wherein the extension portion mounting bracket, a vehicle body side structure according to claim 2 or 3, characterized in that it is provided to engage alternately in the longitudinal direction in the engaged state. Either one of the extension part and the mounting bracket is provided with a tooth shape arranged in the front-rear direction, and the other part of the extension part and the mounting bracket is provided with a wave-shaped step that meshes with the tooth shape. 5. The vehicle body side part structure according to claim 4 , wherein   The vehicle body according to claim 5, wherein the step is provided in the vehicle width direction so as to form a wall portion between the engaging portions in the front-rear direction in a state where the tooth shape and the step are engaged with each other. Side structure. The door has a door panel to which the reinforcing member is attached,
The door panel is provided with an opening that opens below the first reinforcing member,
The vehicle body according to any one of claims 1 to 6, wherein an engaging portion between the extension portion and the second reinforcing member is provided below the opening in the second reinforcing member. Side structure.

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