JP6476035B2 - Vehicle pillar structure - Google Patents

Description

  The present invention reduces the intrusion amount of the center pillar into the passenger compartment side and the intrusion amount of other members into the passenger compartment side when a collision occurs from the side of the vehicle pillar structure, particularly from the side. Thus, the present invention relates to a vehicle pillar structure that can ensure good collision safety on the entire side surface of the vehicle.

  The vehicle pillar structure formed so that the end of the door beam arranged below the lower hinge is pushed directly into the weakened portion formed at the lower end of the center pillar in the event of a collision from the side is known. (See Patent Document 1).

Japanese Patent No. 5131065

In the conventional vehicle pillar structure described above, the deformation of the weakened portion formed below the center pillar is urged by the door beam.
However, when the vehicle height of the conventional vehicle pillar structure applied vehicle type is low and the vehicle type of the vehicle related to the collision body is high, the load normally received by the door beam at the time of a collision from the side However, there is a possibility that the front door may be greatly deformed to the passenger compartment side due to the lower position of the door beam.
In other words, in the conventional pillar structure of the vehicle, the center pillar can be deformed in a desired position by arranging the fragile portion and the lower part of the door beam. However, there is a possibility that the amount of intrusion at the front door is increased. there were.

  Therefore, the problem to be solved by the present invention is to reduce the amount of intrusion of the center pillar into the compartment when a collision from the side occurs, and the amount of intrusion of other members into the compartment. By reducing, it is providing the pillar structure of the vehicle which can ensure the favorable collision safety in the whole side surface of a vehicle.

  As a means for solving the above-mentioned problems, a vehicle pillar structure according to the present invention includes a weak portion formed across the entire width in the front-rear direction below the lower hinge at the outer side in the vehicle width direction of the center pillar, and the interior of the front door. And a door beam whose vertical position overlaps with the lower hinge, and extends in the vertical direction to transmit the impact received by the door beam or the lower hinge to the fragile portion in the event of a collision from the side of the vehicle Possible transmission members.

  Furthermore, in the vehicle pillar structure according to the present invention, when the vehicle is viewed from the side, the transmission member has an upper end overlapping the door beam or the lower hinge and a lower end overlapping the fragile portion or the It is preferable to contact the upper part of the weak part.

  In the vehicle pillar structure according to the present invention, a reinforcing member extending from the mounting height position of the lower hinge to the formation height position of the fragile portion is provided on the inner surface portion of the center pillar, from the side of the vehicle. It is preferable that the center pillar is deformed at the upper end portion of the reinforcing member and the fragile portion during the collision.

  In the vehicle pillar structure according to the present invention, it is preferable that the fragile portion is a groove portion formed over the entire width in the front-rear direction on the outer surface of the center pillar.

  In the vehicle pillar structure according to the present invention, the fragile portion has a rear end portion disposed in the vicinity of a lower end portion of the center pillar, and is formed to be inclined from the rear end portion toward the front upper side. When viewed from the side, it is preferable that the transmission member is disposed so as to overlap the door beam and the fragile portion.

According to the present invention, when a collision occurs from the side with respect to the vehicle, if a load is input to the door beam and the lower hinge whose vertical positions overlap, the input load is formed below the lower hinge. The transmission member transmits to the part. Thereby, while a load is input with respect to a center pillar from a door beam and a lower hinge, a load is input with respect to the weak part of a center pillar from a transmission member. The amount of intrusion into the passenger compartment due to the deformation of the center pillar is reduced by the input of the loads dispersed in the plurality of places.
Further, according to the present invention, it is not necessary to extend the rear end portion of the door beam to the vicinity of the lower end portion of the center pillar in order to deform the lower portion of the center pillar, so that the normal function as the door beam can be exhibited. A door beam may be arranged.
As a result, it is possible to provide a vehicle pillar structure that can ensure good collision safety on the entire side surface of the vehicle.

FIG. 1 is a perspective view showing a side portion in a vehicle to which an embodiment of the present invention can be applied. FIG. 2 is a schematic side view showing a part of the vehicle shown in FIG. 3 is a schematic cross-sectional view taken along the line AA shown in FIG. 4 is a schematic cross-sectional view of the vehicle pillar structure shown in FIG. 3 with the door beam and bracket removed, FIG. 4 (a) is a schematic cross-sectional view before the collision, and FIG. FIG. FIG. 5 is a schematic cross-sectional view of the vehicle pillar structure shown in FIG. 2 where the center pillar and the front door are cut along the vertical direction of the front door, and a groove is excluded. FIG. FIG. 5B is a schematic cross-sectional view at the time of collision. 6 is a schematic cross-sectional view showing a cut surface along the vertical direction of the center pillar and the front door in the pillar structure of the vehicle shown in FIG. 2, and FIG. 6 (a) is a schematic cross-sectional view before the collision. 6 (b) is a schematic cross-sectional view at the time of collision.

An embodiment of the present invention will be described below with reference to the drawings.
First, a vehicle to which the present invention can be applied will be described with reference to FIG. Further, an embodiment of a vehicle pillar structure according to the present invention will be described in detail with reference to FIGS.
FIG. 1 is a perspective view showing a side portion in a vehicle to which an embodiment of the present invention can be applied. FIG. 2 is a schematic side view showing a part of the vehicle shown in FIG. 3 is a schematic cross-sectional view taken along the line AA shown in FIG.

(Outline of vehicle to which the present invention is applicable)
As shown in FIG. 1, the vehicle 100 includes an upper side frame 101, a front pillar 102, a center pillar 103, and a rear pillar 104 at a side portion thereof. In addition, the vehicle 100 shown in FIG. 1 has shown only the left side part.

  The upper side frame 101 is a pair of frame-like members that extend in the front-rear direction on both the left and right sides of the front portion of the vehicle 100. Although not shown, a frame-shaped radiator panel that holds the radiator is attached to the front end portion of the upper side frame 101.

  The front pillar 102 is a pair of frame-like members that are connected to the rear end portion of the upper side frame 101 and are respectively disposed at the left and right front end portions in the passenger compartment of the vehicle 100. The front pillar 102 has a portion extending substantially in the vertical direction and a portion extending toward the rear upper side. The upper side frame 101 is fixedly connected to an upper end portion of a portion extending in the vertical direction of the front pillar 102 or the vicinity thereof.

  In the front pillar 102, a plate-like toe board panel 105 that is passed to the left and right is attached to the inner side in the vehicle 100 width direction. Further, a reinforcement stiffening member 106 for reinforcement is disposed from the lower surface or side surface of the upper side frame 101 to the front surface of the front pillar 102. A plate-like torque box 107 is fixedly disposed on the floor panel (not shown) constituting the bottom surface of the passenger compartment from the left and right lower ends of the toe board panel 105.

  The center pillar 103 is a pair of frame-like members that are disposed on the left and right sides of the passenger compartment behind the front pillar 102 and extend in the vertical direction. Further, the rear pillar 104 is a pair of frame-like members that are respectively disposed at the rear end portions of the left and right sides of the passenger compartment behind the center pillar 103 and extend in the vertical direction. In the front-rear direction of the vehicle 100, the center pillar 103 is disposed at a substantially central portion between the front pillar 102 and the rear pillar 104.

  Upper portions of the front pillar 102, the center pillar 103, and the rear pillar 104 are connected by a pair of roof side rails 108 that extend in the front-rear direction on the left and right sides of the vehicle 100. A roof cross member 109 extending in the left-right direction is passed between the pair of roof side rails 108 in order to reinforce a roof panel (not shown) constituting the ceiling surface of the passenger compartment.

  Lower portions of the front pillar 102, the center pillar 103, and the rear pillar 104 are connected to each other by a pair of side sills 110 extending in the front-rear direction on the left and right sides of the vehicle 100. A floor panel (not shown) is passed between the pair of side sills 110.

  In the front pillar 102, a door hinge (not shown) of a front door is attached to the outside in the width direction of the vehicle 100, and a front door (not shown) is attached to the door hinge so as to be openable and closable with respect to the passenger compartment. In the center pillar 103, a door hinge (not shown in FIG. 1) of a rear door is attached to the outside in the width direction of the vehicle 100, and a rear door (not shown) is attached to the door hinge so as to be openable and closable with respect to the passenger compartment.

  The vehicle pillar structure 1 shown in FIGS. 2 and 3 can be applied to a portion surrounded by a broken-line circle in FIG. Below, the pillar structure 1 of the vehicle which is basic embodiment is demonstrated, referring FIG.2 and FIG.3.

(Overview of basic embodiment)
A vehicle pillar structure 1 shown in FIG. 2 includes a groove 2, a door beam 3, and a bracket 4.

  The groove portion 2 is formed further below the lower hinge, that is, the lower hinge 5 for attaching the rear door to the center pillar 103 at the vehicle width direction outer side portion of the center pillar 103. In addition, the groove part 2 is an example of the weak part in this invention.

  As shown in FIG. 2, the center pillar 103 and the side sill 110 are continuously connected. The center pillar 103 and the side sill 110 are both frame-shaped cylinders, and are formed by fixing the edges of a plurality of bent or curved steel plates by spot welding or the like. The spot welded portions are in the state where the steel plates are overlapped, as flange portions 111 on the lower side of the side sill 110, on the front side of the center pillar 103 from the upper side of the side sill 110, and on the rear side of the center pillar 103 from the upper side of the side sill 110 It will protrude.

  The center pillar 103 and the side sill 110 are raised from the respective flange portions 111 toward the outside in the width direction of the vehicle 100, and are formed into a cylindrical body by forming an outer surface. An inclined surface portion protruding from the flange portion 111 formed over the upper side of the side sill 110 and the front side of the center pillar 103 is defined as a front raised portion 112, and is formed over the upper side of the side sill 110 and the rear side of the center pillar 103. The inclined surface portion that protrudes from the flange portion 111 is referred to as a rear raised portion 113.

  Further, a projecting surface portion that is formed between each flange portion 111 of the center pillar 103 and the side sill 110 and extends outward in the width direction of the vehicle 100 is referred to as an outer surface portion 114. In the present embodiment, since the outer side surfaces of the center pillar 103 and the side sill 110 are continuous, the outer side surfaces of both frame-shaped members are uniformly defined as the outer surface portions 114. As shown in FIG. 2, the outer surface portion 114 of the center pillar 103 is a plate-like portion formed so as to be passed between the front raised portion 112 and the rear raised portion 113.

  In the present embodiment, the groove portion 2 is a concave portion formed in the outer surface portion 114 from the front raised portion 112 at the lower portion of the center pillar 103 to the rear raised portion 113 at the connection portion between the center pillar 103 and the side sill 110. It is. As shown in FIG. 2, the groove portion 2 is arranged at one end so as to be connected to the rear raised portion 113 in the vicinity of the lower end portion of the center pillar 103, and is connected to the front raised portion 112 from the one end portion toward the upper front side. It is formed so as to be inclined.

  The position, size, shape, and the like of the groove 2 are particularly limited as long as the groove 2 can be one of the starting points of deformation of the center pillar 103 when a load is transmitted to the groove 2 via a bracket 4 described later. Not.

The lower hinge 5 is formed by bending a plate-like member, and has a fixed portion 51 and a protruding portion 52.
The fixing portion 51 is a portion that is fixed to the outer surface portion 114 by a fastening member 6 such as a bolt and a nut.
The protruding portion 52 is a portion that protrudes toward the outer side in the width direction of the vehicle 100, and a rear door rotation shaft or the like along the vertical direction of the vehicle 100 is appropriately attached.

  In the present embodiment, the reinforcing member 7 is provided on the inner surface portion of the center pillar 103. The reinforcing member 7 extends from the front raised portion 112 to the rear raised portion 113 in the front-rear direction of the vehicle 100, and extends from the upper portion of the lower hinge 5 to the upper portion of the groove portion 2 in the vertical direction of the vehicle 100. The reinforcing member 7 is a rigid plate-like member, and is fixedly disposed on the center pillar 103 on the back side of the mounting position of the lower hinge 5 by a fastening member 6 for fixing the lower hinge 5. The reinforcing member 7 in the present embodiment only needs to extend from at least the mounting height position of the lower hinge 5 to the formation height position of the groove portion 2.

  The door beam 3 and the bracket 4 are members provided inside the front door 115 whose outline is shown only by a one-dot chain line in FIG. 2, and are basically disposed at a position where they are not exposed to the outside of the passenger compartment.

  The door beam 3 is a rigid cylindrical member, and can improve the collision safety from the side of the front door 115 and the collision safety from the front depending on the vehicle type. In the present embodiment, the vertical position of a part of the rear end portion of the door beam 3 is arranged so as to overlap with the lower hinge 5.

  The bracket 4 is a member that extends in the vertical direction and can transmit an impact received by the door beam 3 to the groove portion 2 in the event of a collision from the side. The bracket 4 is a plate-like member for fixing the positioned door beam 3 to the inside of the front door 115, and has high rigidity so that an impact can be transmitted. The bracket 4 is an example of a transmission member in the present invention.

  The bracket 4 has a force receiving portion 41 and a transmission portion 42. As shown in FIG. 2, when the vehicle 100 is viewed from the side, the force receiving portion 41 overlaps the door beam 3, and the transmission portion 42 overlaps the groove portion 2.

  The force receiving portion 41 is a plate-like portion whose longitudinal direction extends in the vertical direction, and receives an impact from the door beam 3 at an arbitrary portion. The force receiving portion 41 is a part in contact with the door beam 3 by the attachment of the door beam 3 to the front door 115 by the bracket 4. The transmission portion 42 is a plate-like portion extending from the lower end portion of the force receiving portion 41 in the front-rear direction and toward the groove portion 2, and transmits the impact received by the force receiving portion 41 from the door beam 3 to the groove portion 2.

  For example, the bracket 4 that can be adopted in view of the balance of strength, size, and weight when the bracket 4 is extended to the groove 2 and the surplus space in which the bracket 4 can be disposed in the front door 115. Is determined. What is necessary is just to set the up-and-down position of the groove part 2, a shape, etc. according to the magnitude | size and arrangement | positioning of the bracket 4. FIG.

  Next, FIG. 3 shows the positional relationship among the door beam 3, the bracket 4, and the lower hinge 5 in the vehicle width direction in the event of a collision.

  The door beam 3 and the bracket 4 are basically fixed to the interior portion or the exterior portion of the front door 115. Thereby, even if the front door 115 is closed, the door beam 3 and the bracket 4 do not directly contact the center pillar 103, and a state where they are separated by a certain distance is maintained. Since the interior / exterior portion of the front door 115 is formed of a steel plate and a resin member, the interior / exterior portion may be broken or deformed by a collision from the side, but the door beam 3 and the bracket 4 in the present embodiment are broken. By forming it difficult, a load can be reliably input to the center pillar 103.

  In the vehicle pillar structure 1 according to the present embodiment, when the gap between the door beam 3 and the bracket 4 and the inner surface of the front door 115 is compressed in the event of a collision, the center pillar 103 The protruding distance of the door beam 3 and the bracket 4 from the outer surface portion 114 and the protruding distance of the lower hinge 5 from the outer surface portion 114 are set to be substantially the same. Since the size of the lower hinge 5 is determined by the vehicle model to which the present invention is applied, the diameter of the door beam 3, the thickness of the bracket 4 and the like are adjusted according to the protruding distance of the lower hinge 5 from the outer surface portion 114. It is better to align the protrusion distance.

  By arranging the members so that the protruding distances are substantially the same, a load is input to the outer surface portion 114 of the center pillar 103 substantially evenly along the front-rear direction of the vehicle. More specifically, the members pressed by the collision body C at the time of the collision, that is, the door beam 3, the bracket 4, and the lower hinge 5 press the outer surface portion 114 uniformly in the front-rear direction. The door beam 3 and the bracket 4 press the front raised portion 112 side of the outer surface portion 114, and the lower hinge 5 presses the rear raised portion 113 side of the outer surface portion 114.

(First comparative example)
Here, as a first comparative example, the case where the vertical positions of the door beam 3 and the bracket 4 and the lower hinge 5 are separated without overlapping will be described with reference to FIG.
4 is a schematic cross-sectional view of the vehicle pillar structure shown in FIG. 3 with the door beam and bracket removed, FIG. 4 (a) is a schematic cross-sectional view before the collision, and FIG. FIG.

  In the first comparative example shown in FIG. 4A, the door beam 3 and the bracket 4 are the same as the lower hinge 5 by changing the position of the door beam 3 and the bracket 4 shown in FIGS. This is a form that is not pushed into the outer surface portion 114 at the height.

  When the collision body C presses the lower hinge 5 in the first comparative example, as shown in FIG. 4B, the outer surface portion 114 on the side of the rear raised portion 113 of the center pillar 103, which is a portion formed by attaching the lower hinge 5. Only deforms greatly. At this time, since no load is input to the outer surface portion 114 on the front raised portion 112 side, it is not deformed or hardly deformed.

  Although not shown, when the collision body C presses the door beam 3 and the bracket 4 without pressing the lower hinge 5 instead of the first comparative example shown in FIG. Only the outer surface portion on the portion 112 side is greatly deformed. In this case, since no load is input to the outer surface portion 114 on the rear raised portion 113 side, the outer surface portion 114 is not deformed or hardly deformed.

Therefore, when any one of the door beam 3 and the bracket 4 and the lower hinge 5 is pushed into the outer surface portion 114 by the collision body C, the load on the outer surface portion 114 is not uniform in the front-rear direction.
In this case, for example, even if an easily deformable portion is formed by providing a difference in strength for each portion along the vertical direction of the center pillar 103 according to the first comparative example, the load input to the center pillar 103 is Since there is a deviation in the direction, there is a possibility that the intended deformation inward in the width direction of the vehicle cannot be obtained.

  In contrast to the first comparative example, in the present embodiment, the door beam 3 and the bracket 4 and the lower hinge 5 are set at the upper and lower positions so that the outer surface portion 114 of the center pillar 103 is particularly formed as shown in FIG. It can be pressed uniformly in the front-rear direction. That is, since the bias in the front-rear direction in the load acting on the outer surface portion 114 is smaller in the present embodiment than in the first comparative example, it is easy to control the deformation inward in the width direction of the vehicle.

  A part of the rear side of the center pillar 103 when the collision further progresses is shown in FIG. In the initial stage of the collision, when the collision body C comes into contact with only the lower hinge 5 as described above, the rear raised portion 113 side is deformed. As the collision proceeds from this state, not only the rear raised portion 113 of the center pillar 103 but also the rear flange portion 111 is greatly deformed toward the passenger compartment. That is, in the first comparative example, when a collision from the side occurs, the deformation amount on the rear side of the center pillar 103 is increased by the lower hinge 5, so that the state is locally twisted around the lower hinge 5. .

(Second comparative example)
As a further comparative example, the case where the upper and lower positions of the door beam 3 and the bracket 4 and the lower hinge 5 are overlapped but the groove 2 is not formed will be described with reference to FIG.
FIG. 5 is a schematic cross-sectional view of the vehicle pillar structure shown in FIG. 2 where the center pillar and the front door are cut along the vertical direction of the front door, and a groove is excluded. FIG. 5 (a) is a schematic cross-sectional view before the collision. FIG. 5B is a schematic cross-sectional view at the time of collision. In addition, the front door 115 shown in FIG. 5 has shown only the outer-plate part.

  The second comparative example shown in FIG. 5A is a form in which the groove 2 shown in FIG. 2 is not provided. In the second comparative example, the door beam 3 and the bracket 4 and the lower hinge 5 are arranged so that their vertical positions overlap each other, so that a load with little deviation is input to the outer surface portion 114 in the front-rear direction.

  However, when the collision body C is pushed in, as shown in FIG. 5 (b), the upper edge of the reinforcing member 7 disposed above the lower hinge 5 is bent or bent inward in the width direction of the vehicle. Arise. At this time, the lower part of the reinforcing member 7, that is, the vicinity of the lower end portion of the center pillar 103 has a large cross-sectional area and is not easily deformed. Therefore, in the second comparative example in which the groove 2 is not provided in the outer surface portion 114 Is likely to occur only at the upper end edge of the reinforcing member 7 or at one location in the vicinity thereof.

  Therefore, when the weak part such as the groove part 2 is not provided as in the second comparative example, the load on the outer surface part 114 is concentrated on the upper edge part of the reinforcing member 7 and the like. Thereby, the deformation | transformation to the width direction inner side of the center pillar 103 will become large.

(Modification of the basic embodiment)
Here, a modification of the embodiment shown in FIGS. 2 and 3 will be described with reference to FIG.
6 is a schematic cross-sectional view showing a cross section along the vertical direction of the center pillar and the front door in the pillar structure of the vehicle shown in FIG. 2, and FIG. 6 (a) is a schematic cross-sectional view before the collision. FIG. 6B is a schematic cross-sectional view at the time of collision.

  In the present embodiment shown in FIG. 6A, as shown in FIGS. 2 and 3, the door beam 3, the bracket 4, and the lower hinge 5 are arranged so that the vertical positions overlap each other. A load with little bias is input to the portion 114 in the front-rear direction.

  Further, when the collision body C is pushed in, as shown in FIG. 6 (b), the upper edge of the reinforcing member 7 disposed above the lower hinge 5 is bent or bent inward in the width direction of the vehicle. Arise. In addition to this, in the groove portion 2 which is disposed below the lower hinge 5 and the reinforcing member 7 and a part of the transmission portion 42 of the bracket 4 overlaps in the vertical position, the vehicle is bent or bent inward in the width direction. Causes deformation. That is, the outer surface portion 114 is deformed at two locations on the upper and lower edge portions of the reinforcing member 7.

In the second comparative example, since the vicinity of the lower end portion of the center pillar 103 was difficult to be deformed, bending deformation or bending deformation of the large outer surface portion 114 only at one place occurred.
In contrast, in the present embodiment, the door beam 3 and the bracket 4 and the lower hinge 5 are not only set at the upper and lower positions, but also the groove portion 2 and the bracket 4 for transmitting a load to the groove portion 2 are provided. Thereby, not only can the outer surface portion 114 of the center pillar 103 be uniformly pressed in the front-rear direction, but the center pillar 103 inward in the width direction of the vehicle can be deformed at two locations.

  That is, in FIG. 6B, the amount of deformation of the center pillar 103 in the second comparative example shown in FIG. As is clear from FIG. 6B, the deformation of the center pillar 103 at two locations in the present embodiment is wider than the deformation of the center pillar 103 at only one location in the second comparative example. The amount of deformation inward in the direction is small, and the amount of deformation is easy to control.

  As described above, in the present embodiment, the deformation mode and deformation amount of the center pillar 103 can be controlled according to the position, shape, and size of the groove portion 2, the door beam 3, the bracket 4, and the lower hinge 5.

In the present embodiment, the rear end portion of the door beam 3 and the lower hinge 5 are included within the range of the upper and lower end portions of the reinforcing member 7, that is, the rear end portion of the door beam 3 and the lower hinge 5 are reinforced. It is preferable to arrange the member 7 so that the vertical position overlaps.
With such an arrangement, when the door beam 3 and the lower hinge 5 into which the collision body C is pushed in input a load to the outer surface portion 114, the reinforcing member 7 arranged on the back surface to which the load is input receives the load as a surface. Can do. As a result, the outer surface portion 114 within the vertical range of the reinforcing member 7 is pushed into the passenger compartment as a surface while suppressing local deformation. As a result, the deformation in the front-rear direction and the up-down direction of the outer surface portion 114 does not occur or hardly occurs.

In this embodiment, as shown in FIG. 2, it arrange | positions so that a part of lower part of the door beam 3 and a part of upper part of the lower hinge 5 may overlap in an up-down position. In the present embodiment, unlike the prior art, it is not necessary to extend the rear end portion of the door beam 3 to the lower portion of the center pillar 103 in order to deform the vicinity of the lower end portion of the center pillar 103.
If the position of the rear end of the door beam 3 is too low, for example, the vehicle pillar structure 1 according to this embodiment is applied to a vehicle with a low vehicle height, and the collision body is a vehicle with a high vehicle height. There is a possibility that the passenger in the passenger seat or the driver's seat is not properly protected by the door beam 3 lowered too much.
On the other hand, the present embodiment that can be arranged by raising the door beam 3 to a certain height position can also secure the passenger protection performance by the door beam 3.

  Accordingly, in the present embodiment, by controlling both the deformation form and deformation amount of the center pillar 103 and ensuring the collision safety performance from the side by other members such as the door beam 3, Good collision safety can be obtained.

  As mentioned above, although embodiment which applied the invention made | formed by this inventor was described, this invention is not limited by the description and drawing which make a part of indication of this invention by this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

1: vehicle pillar structure, 2: groove portion, 3: door beam, 4: bracket, 41: force receiving portion, 42: transmission portion, 5: lower hinge, 51: fixing portion, 52: protruding portion, 6: fastening member, 7 : Reinforcing member, 100: vehicle, 101: upper side frame, 102: front pillar, 103: center pillar, 104: rear pillar, 105: toe board panel, 106: stiffening member, 107: torque box, 108: roof side rail, 109: roof cross member, 110: side sill, 111: flange portion, 112: forward raised portion, 113: rear raised portion, 114: outer surface portion, 115: front door, C: collision body

Claims (5)

On the outer side in the vehicle width direction of the center pillar, a fragile part formed over the entire width in the front-rear direction below the lower hinge,
A door beam disposed in the front door, the vertical position of which overlaps with the lower hinge, and
A transmission member extending in the vertical direction and capable of transmitting the impact received by the door beam or the lower hinge to the fragile portion in the event of a collision from the side of the vehicle.
Vehicle pillar structure. When the vehicle is viewed from the side, the transmission member has an upper end overlapped with the door beam or the lower hinge, and a lower end overlaps the fragile portion or contacts the upper portion of the fragile portion.
The pillar structure of the vehicle according to claim 1. In the inner surface portion of the center pillar, a reinforcing member is provided that extends from an attachment height position of the lower hinge to a formation height position of the fragile portion,
In the event of a collision from the side of the vehicle, the center pillar is deformed at the upper end portion of the reinforcing member and the weakened portion.
The pillar structure of the vehicle according to claim 1 or 2. The fragile portion is a groove formed across the entire width in the front-rear direction on the outer surface of the center pillar.
The pillar structure of the vehicle according to claim 1. The fragile portion is formed such that a rear end portion is disposed in the vicinity of a lower end portion of the center pillar, and is inclined toward the upper front side from the rear end portion.
When the vehicle is viewed from the side, the transmission member is overlapped with the door beam and the fragile portion.
The pillar structure of the vehicle according to any one of claims 1 to 4.

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