JP6062695B2 - Vehicle side structure - Google Patents

Description

  The present invention relates to a side structure of a vehicle in which an impact beam is provided in an internal space of a side door that closes a door opening formed on a side wall of the vehicle body from the outside of the vehicle body.

  Conventionally, there is a side part structure of the vehicle described in Patent Document 1 below. According to this publication, the side structure of the vehicle includes a side wall that forms a side surface inside the vehicle body, a door opening that is formed on the side wall, and whose lower opening edge is formed by the top of the wheel house, A side door that can be opened and closed from the outside of the vehicle body and an impact beam that is provided in an internal space below the side door and extends in the front-rear direction of the vehicle body are provided.

  Here, when a vehicle traveling forward collides with a certain object in front of it (front collision), or when the outer part of the vehicle collides with any object (side collision), the side door is a vehicle inside the vehicle body. There is a risk of being displaced toward the passenger compartment side by bending or deforming toward the passenger compartment side. However, in this case, the impact beam firmly supports the impact force at the time of the collision, and the side door is prevented from being greatly displaced toward the side, thereby preventing the vehicle inside the vehicle body. The passengers in the room are protected.

JP 2004-268805 A

  By the way, in order to ensure the protection of the passengers at the time of the collision, the deformation of the vehicle body due to the impact force at the time of the collision can be reduced by increasing the cross-sectional shape of the impact beam or increasing the plate thickness. It can be considered to be able to suppress.

  However, as described above, simply increasing the cross-sectional shape of the impact beam or increasing the plate thickness tends to increase the shape of the vehicle body or increase the mass accordingly. As a result, there is a risk that the productivity of the vehicle body is lowered and the production cost is increased.

  The present invention has been made paying attention to the above situation, and an object of the present invention is that the side door is largely displaced toward the side by the impact force at the time of the collision of the vehicle. It is to prevent more reliably, to achieve the protection of the occupant more effectively, and to maintain good productivity of the vehicle body even in this case.

The invention of claim 1 includes a side wall 12 that forms the side surface of the compartment 10 inside the vehicle body 2, a door opening 39 that is formed on the side wall 12, and whose lower opening edge is formed by the top of the wheel house 35, A side door 40 for closing the door opening 39 from the outside of the vehicle body 2 and an internal space below the side door 40 are provided in the front and rear direction of the vehicle body 2 to the vicinity of the front end and the rear end of the side door 40. in the side structure of a vehicle equipped with the impact beam 41 extending, and a bracket which is secured to the lower portion of the side door 40 while being fixed to the impact beam 41,
The bracket includes a front portion 42, a rear portion 43, and a midway bracket 44 that are fixed to the front and rear ends of the impact beam 41 and a midway portion in the longitudinal direction and are fixed to the lower portion of the side door 40. ,
Of these brackets, at least the intermediate portions bracket 44, in the vehicle body in a side view (FIG. 2), the side structure of a vehicle, characterized in that it is arranged so as to overlap the top portion 35a of the wheel house 35 It is.

The invention of claim 2 is characterized in that the front and rear brackets are fixed to the impact beam such that the middle part in the vertical direction covers the impact beam from the outside of the vehicle body, 2. The side part structure of a vehicle according to claim 1, wherein a middle part in the vertical direction is fixed to the impact beam so as to cover the impact beam from the inside of a vehicle body .

According to a third aspect of the present invention, one of the outer surface of the top portion of the wheel house and the midway bracket has an engaging projection that protrudes toward the outer side of the vehicle body, and the other is an inner side of the vehicle body. An engagement recess that is recessed toward the side, and the engagement protrusion and the engagement recess are engageable when the side door is displaced by an impact force at the time of a vehicle collision. It is the side part structure of the vehicle of Claim 1 or 2.

  In addition, in this section, the reference numerals and drawing numbers appended to the above terms are not intended to limit the technical scope of the present invention to the “Example” section and the contents of the drawings described later.

  The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided a side wall forming a side surface of a passenger compartment inside the vehicle body, a door opening formed on the side wall and having a lower opening edge portion formed by a top portion of the wheel house, and the door opening. A side door that can be opened and closed from the outside, an impact beam that is provided in an internal space below the side door and extends in the front-rear direction of the vehicle body to the vicinity of the front and rear ends of the side door, and is fixed to the impact beam And a side structure of the vehicle provided with a bracket fixed to the lower part of the side door,
The bracket has a front part, a rear part, and a middle part bracket fixed to the front end of the impact beam, a rear end part and a middle part in the longitudinal direction and fixed to a lower part of the side door,
Among these brackets, at least the midway bracket is disposed so as to overlap the top of the wheel house in a side view of the vehicle body .

  For this reason, at the time of the collision of the vehicle, the side door and the impact beam tend to be greatly displaced toward the wing by the side door and the impact beam being greatly bent and deformed toward the wing, As described above, when the side door and the impact beam are about to be displaced toward the side, the bracket that fixes the impact beam to the lower portion of the side door is pressed against the top of the wheel house. Thus, the side door and the impact beam are prevented from being displaced toward the side. Therefore, according to the present invention, the protection of passengers in the passenger compartment is more effectively achieved than simply providing an impact beam on the side door.

  Further, the above-mentioned effective protection of the occupant is achieved by constituting the lower opening edge of the door opening and generally using the top of the wheel house having high strength and rigidity. This can be achieved without increasing the cross-sectional shape of the beam or increasing the plate thickness. Therefore, even when the passenger can be effectively protected as described above, it is possible to prevent the shape of the vehicle body from increasing or the mass from increasing, so that the productivity of the vehicle body can be maintained well, The production cost of the vehicle body is prevented from becoming expensive.

The invention of claim 2 is characterized in that the front and rear brackets are fixed to the impact beam such that the middle part in the vertical direction covers the impact beam from the outside of the vehicle body, The middle part in the vertical direction is fixed to the impact beam so as to cover the impact beam from the inside of the vehicle body.

For this reason, when an impact force is applied from the front and outside of the vehicle body at the time of the collision of the vehicle, the front and rear portions of the impact beam are in pressure contact with the front and rear brackets so that these front portions The separation from the rear bracket is surely prevented. In addition, when the middle part of the side door and the impact beam is displaced toward the trap, the middle bracket is pushed by the mid part of the impact beam and the top bracket of the wheel house is pressed against the trap. The middle part of the impact beam is pressed so as to come into surface contact with the middle bracket. For this reason, the external force from the middle of the impact beam toward the top of the wheel house is dispersed by the middle bracket and the top reaches the side, so that the external force is firmly supported by the top Is done.

According to a third aspect of the present invention, one of the outer surface of the top portion of the wheel house and the midway bracket has an engaging projection that protrudes toward the outer side of the vehicle body, and the other is an inner side of the vehicle body. The engaging protrusion is recessed toward the side, and the engaging protrusion and the engaging recess can be engaged when the side door is displaced by an impact force at the time of a vehicle collision.

For this reason, when the vehicle collides, due to the impact force , the respective middle portions of the side door and the impact beam in the front-rear direction are largely displaced toward the side of the vehicle. Is more reliably prevented.

FIG. 4 is a cross-sectional view taken along the line II of FIG. 3, showing Example 1. 1 is a side view of a front portion of a vehicle according to a first embodiment. FIG. 1 is a plan sectional view of a front portion of a vehicle, showing Embodiment 1. FIG. 1 is a perspective view of a side door according to a first embodiment. FIG. FIG. 3 is a perspective view of the passenger compartment when the right cover plate of the left and right cover plates is rotated upward in the first embodiment. FIG. 2 shows a second embodiment and corresponds to FIG.

  The side part structure of the vehicle according to the present invention is more effective in protecting the occupant by preventing the side door from being greatly displaced toward the side by the impact force at the time of the vehicle collision. In order to achieve the object of enabling the vehicle body to be achieved and to maintain the good productivity of the vehicle body even in such a case, the mode for carrying out the present invention is as follows. .

  That is, the side structure of the vehicle has a side wall that forms the side surface of the passenger compartment inside the vehicle body, a door opening that is formed on the side wall, and whose lower opening edge is formed by the top of the wheel house, and the door opening. A side door that can be opened and closed from the outside of the vehicle body, an impact beam that extends in the front-rear direction of the vehicle body, and is fixed to the impact beam and fixed to the lower part of the side door. Bracket. The bracket is arranged so that the bracket overlaps the top of the wheel house in a side view of the vehicle body.

  In order to describe the present invention in more detail, the first embodiment will be described with reference to FIGS.

  In the figure, reference numeral 1 denotes a vehicle exemplified by a cab-over type light truck automobile, and an arrow Fr indicates the front of the vehicle 1 in the traveling direction. The left and right described below refer to the width direction of the vehicle body 2 of the vehicle 1 toward the front.

  The vehicle body 2 constitutes a lower end portion thereof, a vehicle body frame 3 that is a skeleton member of the vehicle body 2 with sufficient strength and rigidity, and a front upper portion of the vehicle body 2 to form a front of the vehicle body frame 3. A cab 4 supported by the vehicle body, a cargo bed 5 in which the rear upper part of the vehicle body 2 forms a hook and the rear part of the vehicle body frame 3 is supported by the hook, and the left and right outer sides of the front and rear parts of the vehicle body frame 3, respectively. And a rear wheel 7 before and after the vehicle body 2 is supported on the running surface 6 by a suspension device (not shown). The vehicle body 2 is symmetric with respect to the center line 8 in the width direction.

  The vehicle body 2 is entirely made of sheet metal, and the interior space of the driver's cab 4 is a passenger compartment 10. The right half of the passenger compartment 10 is a driver's compartment and the left half is a passenger compartment.

  The cab 4 of the vehicle body 2 is erected so as to extend upward from the left and right side portions of the vehicle body frame 3 and the floor panel 11 that is supported on the vehicle body frame 3 and forms the lower surface of the passenger compartment 10. The left and right side walls 12 that form the left and right side surfaces of the vehicle compartment 10 and the width direction of the vehicle body 2 extend from the front edge of each lower portion of the left and right side walls 12 to form the lower front surface of the vehicle compartment 10. A front panel 13, a rear panel 14 that extends in the width direction of the vehicle body 2, is installed on each rear end edge of the left and right side walls 12 to form the rear surface of the vehicle compartment 10, and each upper end of the left and right side walls 12 and rear panel 14. Surrounded by a roof panel 15 that is installed on the edge and forms the upper surface of the passenger compartment 10, a front edge of each upper part of the left and right side walls 12, an upper edge of the front panel 13, and a front edge of the roof panel 15 Was And a front window 16 provided to close between.

  The driver's cab 4 of the vehicle body 2 extends in the width direction of the vehicle body 2, and includes a cross member 20 installed on the front end edge of each lower portion of the left and right side walls 12 via a crash body 19, and a lower portion of the front panel 13. And a resin bumper 21 that covers the cross member 20 from the front and is supported by the front end of the vehicle body frame 3, and a side door device 22 that is provided on each of the side walls 12 and that allows communication between the inside and outside of the vehicle compartment 10. The seat device 23 is provided in the passenger compartment 10 and allows a driver or a passenger to be seated.

  The floor panel 11 constitutes a rear portion thereof, and an upper panel 26 formed so as to be one step higher than the front portion thereof, a lower panel 27 constituting a front portion of the floor panel 11, and extends in the vertical direction. A vertical panel 28 that integrally connects the front edge of the upper panel 26 and the rear edge of the lower panel 27 is provided.

  Each of the side walls 12 has an inner panel and an outer panel 31 and 32 that face each other at a distance in the width direction of the vehicle body 2, and the outer edge portions of the panels 31 and 32 are coupled to each other.

  Among the front and rear wheels 7, the front wheel 7 is covered from above, and an arch-shaped wheel house 35 is formed at the lower end of the side of the cab 4 of the vehicle body 2 in a side view of the vehicle body 2 (FIG. 2). Is done. The wheel house 35 is formed by the side portion of the floor panel 11 that constitutes the lower end portion of the side of the cab 4 of the vehicle body 2 and the lower end portion of the side wall 12.

  Specifically, the top portion 35 a of the wheel house 35 is constituted by the lower end portion of the inner panel 31 of the side wall 12. The lower end portion of the inner panel 31 is a hat shape having a large cross-sectional shape in a front view of the vehicle body 2 (FIG. 1). In this case, the lower end portion of the top portion 35a of the wheel house 35, the side portion of the upper panel 26 of the floor panel 11, and the lower end portion of the outer panel 32 of the side wall 12 are coupled to each other. In particular, it has a large strength and rigidity against an external force from the width direction of the vehicle body 2. The wheel house 35 extends in a front-down manner from the top 35 a to the rear side of the lower panel 27 of the floor panel 11.

  A suspension tower 37 is continuously provided on the inner side of the vehicle body 2 with respect to the top portion 35 a of the wheel house 35. The suspension tower 37 suspends the front wheel 7 by the suspension device, and an upper portion of a shock absorber of the suspension device is connected to an opening at the top of the suspension tower 37. Here, the suspension tower 37 firmly supports the weight of the vehicle body 2 and has sufficient strength and rigidity.

  The side door device 22 is formed in the side wall 12 and communicates with the inside and outside of the vehicle compartment 10. The side door device 22 closes the door opening 39 so that it can be opened and closed from the outside of the vehicle body 2. 40, an impact beam 41 extending in the front-rear direction of the vehicle body 2, and fixed to the front and rear ends of the impact beam 41 and a longitudinal middle portion thereof by welding and the side door 40. The front part, the rear part, and the midway brackets 42, 43, 44 made of sheet metal are fixed to the lower part of the steel plate by spot welding S.

  Of the opening edges of the door opening 39, the front and rear opening edges are front and rear pillars 47 and 48 that are frame members of the vehicle body 2. The front and rear pillars 47 and 48 are formed to have a hollow closed cross-sectional structure by connecting the inner side of the side wall 12 and the front and rear end edges of the outer panels 31 and 32 to each other. 2 skeleton members. A bulkhead 49 is provided inside the front pillar 47 in the middle in the vertical direction so as to face the crash body 19 in the front-rear direction of the vehicle body 2.

  On the other hand, the rear part of the lower opening edge of the door opening 39 is constituted by the rear part of the wheel house 35 including the top part 35 a of the wheel house 35. Further, the front part of the lower opening edge of the door opening 39 is located on the front side of the front part of the wheel house 35 extending from the top part 35 a of the wheel house 35 and the front end part of the wheel house 35. It is comprised by the front part of the lower panel 27 of the floor panel 11 located, and the lower end edge part of the front part of the outer panel 32 of the said side wall 12. As shown in FIG.

  The lower portion of the side door 40 has inner and outer panels 52 and 53 that face each other at a distance in the width direction of the vehicle body 2, and the outer edge portions of these panels 52 and 53 are coupled to each other. A bead 54 for reinforcing the inner panel 52 is formed in the middle part of the inner panel 52 in the vertical direction, and each part of the bead 54 protrudes toward the side of the vehicle compartment 10 in the longitudinal direction. . The outer edge portion of the side door 40 is in pressure contact with the outer surface of the opening edge portion of the door opening 39 from the outside of the vehicle body 2 through a sealing material (not shown), and in this state, the door opening 39 is Closed.

  The impact beam 41 is made of metal and has a pipe shape with a circular cross section, and a half of the passenger compartment 10 is inserted into the bead 54. The brackets 42, 43, and 44 are made of sheet metal and have a rectangular shape in a side view of the vehicle body 2 (FIG. 2). Among these, the front and rear brackets 42 and 43 are fixed to the impact beam 41 so that the midway portion in the vertical direction covers the impact beam 41 from the outside of the vehicle body 2. The middle part in the vertical direction is fixed to the impact beam 41 so as to cover the impact beam 41 from the inside of the vehicle body 2. The brackets 42, 43, 44 straddle the beads 54, and the lower ends thereof are coupled to the inner panel 52 of the side door 40 by spot welding S, whereby the impact beam 41 is connected to the side door 40. Is firmly attached.

  In the above case, the bracket 44 is disposed so that the lower portion of the midway bracket 44 overlaps the top portion 35a of the wheel house 35 in a side view of the vehicle body 2 (FIG. 2). Further, in the front view of the vehicle body 2 (FIG. 1), the lower portion of the midway bracket 44 is disposed close to the top portion 35a of the wheel house 35 in the width direction of the vehicle body 2, and the wheel house in the vertical direction. The protruding end portion of the bead 54 is disposed close to the upper surface of the top portion 35a of the 35.

  A space defined by the upper panel 26 and the vertical panel 28 of the floor panel 11 serves as an engine room 59 that houses the cylinder head side of the engine 58. The engine 58 is firmly supported by the body frame 3 via an engine mount that is an elastic body. The upper panel 26 of the floor panel 11 is formed with an opening 61 that allows the vehicle compartment 10 to communicate with the engine room 59 below the vehicle compartment 10. The opening 61 is used for work on the engine 58.

  On the center line 8 of the vehicle body 2, a support plate 62 is provided that extends in the front-rear direction so as to cross the central portion of the opening 61 in the width direction of the vehicle body 2. The support plate 62 is installed on the front and rear of the upper panel 26 of the floor panel 11 and is fixed to the upper panel 26 with a fastener. The support plate 62 reinforces the upper panel 26 so as to compensate for a decrease in strength caused by forming the opening 61 in the upper panel 26 of the floor panel 11.

  A reinforcing member 63 is provided which extends in the width direction of the vehicle body 2 along the front opening edge of the opening 61 and on which the top portions 35a of the left and right wheel houses 35 are installed. This reinforcing member 63 is a sheet metal panel bent so that the cross-section of each part in the longitudinal direction is L-shaped, and the lower surface of the front edge of the upper panel 26 of the floor panel 11 and the upper edge of the vertical panel 28. Are connected to the rear surface of the rear surface. In addition, each end portion in the longitudinal direction of the reinforcing member 63 is firmly coupled to the top portion 35a of the wheel house 35 by spot welding via the front end edge portion of the upper panel 26. The reinforcing material 63 reinforces the front opening edge of the opening 61.

  Left and right cover plates 66 and 66 are provided for closing each opening portion of the opening 61 that is divided into right and left by the support plate 62 so as to be openable and closable from above. Each of these cover plates 66 is placed on the upper surface of the upper panel 26. Each of the cover plates 66 is pivotally supported by a pivotal support 67 at the rear end of the upper panel 26 so that the front side of the cover plate 66 moves upward and returns. Further, a connecting tool 68 is provided for removably connecting the front end portion of the cover plate 66 with the opening portions of the opening 61 closed to the front end portion of the upper panel 26. The connector 68 is like a buckle, and the front end portion of the cover plate 66 is firmly connected to the front end portion of the upper panel 26 reinforced by the reinforcing member 63 by the connector 68. .

  The seat device 23 includes a seat cushion 71 disposed on the upper surface of each cover plate 66, a seat back 72 in which a rear end portion of the seat cushion 71 protrudes rearward and upward, and the seat cushion. A seat rail 73 that moves the 71 to a desired position in the front-rear direction of the vehicle body 2 together with the seat back 72 and can be fixed at that position. The seat back 72 is pivotally supported so that the upper side of the seat back 72 can be rotated back and forth with respect to the rear end of the seat cushion 71. An occupant seated on the seat cushion 71 can place his / her feet on the lower panel 27 of the floor panel 11.

  As shown in FIG. 5, when the cover plate 66 is rotated upward, the seat cushion 71 and the seat back 72 are folded and sandwiched between the cover plate 66 and the rear panel 14. Attached. In this state, the opening 61 is opened.

  In FIG. 5, a shift lever 76 and a parking lever 77 are attached to the support plate 62. Further, as shown by a one-dot chain line in FIG. 5, a resin scuff plate (footrest plate) 80 that includes the top portion 35 a of the wheel house 35 and covers the wheel house 35 from above is provided.

  Although the above is based on the illustrated example, the impact beam 41 may be a square pipe having a rectangular cross section. Further, in the side view of the vehicle body 2 (FIG. 2), at least one of the front, rear, and midway brackets 42, 43, and 44 may overlap the top portion 35 a of the wheel house 35. In addition, at least a part of the impact beam 41 may overlap the top portion 35a of the wheel house 35.

  When the vehicle body 2 is given an impact force F1 from the front during the frontal collision of the vehicle 1, the impact force F1 is applied to the bumper 21, the cross member 20, the crash body 19, the front pillar 47, the bulkhead 49, The side door 40, the impact beam 41, and the rear pillar 48 are sequentially supported. Among these, the bumper 21, the cross member 20, and the crash body 19 are deformed by the impact force F1, so that the impact force F1 is reduced. Alleviated. On the other hand, the front pillar 47, the bulkhead 49, the impact beam 41, and the rear pillar 48 firmly support the impact force F1 and prevent the cab 4 of the vehicle body 2 from being greatly deformed.

  On the other hand, when the driver's cab 4 of the vehicle body 2 is given an impact force F2 from the outside when the vehicle 1 collides, this impact force F2 is caused by the outer edge of the side door 40 being the opening edge of the door opening 39. It is supported by the side door 40 by being pressed against the outer side surface of the part, but in this state, the midway part in the surface direction of the side door 40 tends to be displaced, such as the vehicle compartment 10 being bent and deformed toward the side. (Dash-dot line in FIGS. 1 and 3). At this time, a part of the impact force F2 is supported by the impact beam 41, and the side door 40 is prevented from being greatly deformed.

  However, at the time of a collision at the time of a frontal collision or a side collision of the vehicle 1, a large stress tends to be generated in each midway portion of the side door 40 and the impact beam 41 in the front-rear direction due to the impact forces F1 and F2. For this reason, each middle part of the side door 40 and the impact beam 41 tends to be greatly displaced toward the wing, for example, because the cab 10 is greatly bent and deformed toward the wing.

  Here, according to the above configuration, the bracket 44 is disposed so that the midway bracket 44 overlaps the top 35a of the wheel house 35 in a side view of the vehicle body 2 (FIG. 2).

  For this reason, when the middle portions of the side door 40 and the impact beam 41 in the longitudinal direction of the side door 40 and the impact beam 41 are about to be displaced toward the side by the impact forces F1 and F2, this is indicated by a one-dot chain line in FIG. As described above, the middle bracket 44, which fixes the middle part of the impact beam 41 to the lower part of the middle part of the side door 40, is pressed against the side door 40 by the top part 35a of the wheel house 35. The middle passenger compartment 10 with the impact beam 41 is prevented from being displaced to the side.

  Therefore, since each middle part of the side door 40 and the impact beam 41 is prevented from being greatly displaced toward the side of the vehicle compartment 10, compared with simply providing the impact beam 41 on the side door 40, Protection of the passenger in the passenger compartment 10 is achieved more effectively.

  Further, the front and rear brackets 42 and 43 are fixed to the front and rear portions of the impact beam 41 so that the midway portion in the vertical direction covers the impact beam 41 from the outside of the vehicle body 2, The midway bracket 44 is fixed to a midway portion in the front-rear direction of the impact beam 41 such that a midway portion in the vertical direction covers the impact beam 41 from the inside of the vehicle body 2.

  Here, due to the impact forces F1 and F2, the front and rear portions of the side door 40 and the impact beam 41 tend to be displaced toward the outside of the vehicle body 2, while the side door 40 and the impact beam 41 are displaced. Suppose that each middle part in the front-rear direction tends to be displaced toward the side.

  Then, in this case, the front part and the rear part of the impact beam 41 are brought into pressure contact with the front part and the rear brackets 42 and 43 so as to come into surface contact with each other, and the impact beam 41 cannot be detached from the front and rear brackets 42 and 43. It is surely prevented. Further, the midway portions of the side door 40 and the impact beam 41 are displaced toward the side of the vehicle compartment 10, and at this time, the midway bracket 44 is pushed by the midway portion of the impact beam 41 and the wheel bracket 44 is moved to the wheel. When the top portion 35a of the house 35 is in pressure contact with the alligator, the midway portion of the impact beam 41 is in pressure contact with the midway bracket 44 in surface contact. For this reason, the external force from the midway part of the impact beam 41 toward the top 35a of the wheel house 35 is dispersed by the midway bracket 44 so that the top 35a reaches the side, so that the external force is applied to the top 35a. It is strongly supported by the glue.

  Therefore, the fact that the side door 40 is greatly deformed, and that each middle part of the side door 40 and the impact beam 41 is greatly displaced toward the vehicle compartment 10 is that the top portion 35a of the wheel house 35 is The impact beam 41 and the brackets 42, 43, 44 can more reliably prevent them.

  Further, the above-mentioned effective protection of the occupant is achieved by using the top portion 35a of the wheel house 35 that constitutes the lower opening edge of the door opening 39 and has high strength and rigidity. This can be achieved without increasing the cross-sectional shape of the impact beam 41 or increasing the plate thickness. Therefore, even when the occupant can be effectively protected as described above, it is possible to prevent the shape of the vehicle body 2 from increasing and the mass from being increased, so that the productivity of the vehicle body 2 can be maintained well. Thus, the production cost of the vehicle body 2 is prevented from becoming expensive.

  Further, as described above, the suspension tower 37 is continuously provided on the inner side of the vehicle body 2 with respect to the top portion 35 a of the wheel house 35.

  For this reason, when the vehicle 1 collides, the midway portions of the side door 40 and the impact beam 41 are greatly displaced toward the side by the impact forces F1 and F2. In addition to 35a, the suspension tower 37 prevents this. The suspension tower 37 firmly supports the weight of the vehicle body 2 and has sufficient strength and rigidity. Therefore, the displacement of the midway compartment 10 between the side door 40 and the impact beam 41 to the wing is more reliably prevented, and accordingly, the protection of the passenger in the compartment 10 is more reliably achieved. .

  Further, as described above, the opening 61 is formed between the left and right wheel houses 35 formed on the left and right side walls 12 of the vehicle body 2 so that the vehicle compartment 10 communicates therewith. A reinforcing member 63 extending in the width direction of the vehicle body 2 along the portion and erected on the respective top portions 35a of the left and right wheel houses 35 is provided.

  For this reason, when the vehicle 1 collides, due to the impact forces F1 and F2, the midway portions of the side door 40 and the impact beam 41 are largely displaced toward the side by the reinforcing material 63. The top portions 35a of the left and right wheel houses 35 connected to each other are more reliably prevented. Therefore, the passenger | crew protection in the compartment 10 is achieved more effectively by that much.

  Moreover, the above-mentioned effective protection of the occupant is achieved by using the reinforcing material 63 for reinforcing the opening edge portion of the above-described working opening 61. Therefore, even when the passengers can be effectively protected as described above, the productivity of the vehicle body 2 can be maintained satisfactorily by using the reinforcing material 63.

  FIG. 6 below shows the second embodiment. The second embodiment is common in many respects to the configuration and operational effects of the first embodiment. Therefore, regarding these common items, common reference numerals are attached to the drawings, and redundant description thereof is omitted, and different points are mainly described. In addition, the configuration of each part in these embodiments may be variously combined in light of the object and operational effects of the present invention.

  In order to describe the present invention in more detail, Example 2 will be described with reference to FIG.

  In FIG. 6, an engaging portion 83, which is an engaging convex portion that protrudes toward the outer side of the vehicle body 2, is formed on the outer surface of the top portion 35 a of the wheel house 35. On the other hand, an engaged portion 84, which is an engaging recess that is recessed toward the outside of the vehicle body 2, is formed at the lower end portion of the midway bracket 44.

  And, when the vehicle 1 collides, due to the impact forces F1 and F2, when the respective middle portions of the side door 40 and the impact beam 41 in the front-rear direction are largely displaced toward the side, The inner panel 52 of the side door 40 is bent and the engaged portion 84 of the midway bracket 44 is engaged with the engaging portion 83 of the top portion 35a of the wheel house 35.

  According to the above-described configuration, the middle portion of the side door 40 and the impact beam 41 being displaced toward the side by the impact forces F1 and F2 indicates that the engagement portion 83 is covered. By the engagement of the engaging portion 84, it is more reliably prevented. Therefore, the protection of the passenger in the passenger compartment 10 is further effectively achieved.

  The engaging portion 83 may be an engaging concave portion, and the engaged portion 84 may be an engaging convex portion. Further, the inner panel 52 of the side door 40 may be formed in the same shape as the engaged portion 84 in a portion corresponding to the engaged portion 84.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 3 Car body frame 4 Driver's cab 7 Wheel 10 Car interior 11 Floor panel 12 Side wall 19 Crash body 20 Cross member 21 Bumper 22 Side door device 23 Seat device 26 Upper panel 27 Lower panel 28 Vertical panel 31 Inner panel 32 Outer panel 35 Wheelhouse 35a Top 37 Suspension tower 39 Door opening 40 Side door 41 Impact beam 42 Front bracket 43 Rear bracket 44 Middle bracket (bracket)
47 Front pillar 48 Rear pillar 49 Bulkhead 52 Inner panel 53 Outer panel 54 Bead 61 Opening 63 Reinforcement material 66 Cover plate 67 Pivoting tool 68 Connection tool 71 Seat cushion 72 Seat back 73 Seat rail 83 Engagement part 84 Engagement part F1, F2 Impact force S Spot welding

Claims (3)

A side wall that forms the side surface of the passenger compartment inside the vehicle body, a door opening that is formed on the side wall and whose lower opening edge is formed by the top of the wheel house, and the door opening is closed so that it can be opened and closed from the outside of the vehicle body. A side door, an impact beam provided in an inner space below the side door and extending in the front-rear direction of the vehicle body to the vicinity of the front and rear ends of the side door, and a lower portion of the side door fixed to the impact beam In the side structure of the vehicle provided with a bracket fixed to the
The bracket has a front part, a rear part, and a middle part bracket fixed to the front end of the impact beam, a rear end part and a middle part in the longitudinal direction and fixed to a lower part of the side door,
Of these brackets, at least the intermediate portions bracket, in the vehicle body in a side view, the side structure of a vehicle, characterized in that it is arranged so as to overlap the top of the wheel house. The front and rear brackets are fixed to the impact beam so that the middle part in the vertical direction covers the impact beam from the outside of the vehicle body. The middle part bracket has a middle part in the vertical direction. The side part structure of a vehicle according to claim 1, wherein the impact beam is fixed to the impact beam so as to cover the impact beam from the inside of the vehicle body. One of the outer surface of the top portion of the wheel house and the middle bracket has an engaging convex portion that protrudes toward the outside of the vehicle body, and the other is an engagement that is recessed toward the inside of the vehicle body. The engagement protrusion and the engagement recess can be engaged when the side door is displaced by an impact force at the time of a vehicle collision. Vehicle side structure.

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