WO2013105439A1

WO2013105439A1 - Vehicle

Info

Publication number: WO2013105439A1
Application number: PCT/JP2012/083676
Authority: WO
Inventors: 友紀北川; 博文有馬; 康裕八田; 尚幸柿原; 健二千葉
Original assignee: 株式会社豊田自動織機; トヨタ自動車株式会社
Priority date: 2012-01-13
Filing date: 2012-12-26
Publication date: 2013-07-18
Also published as: JP2013144496A

Abstract

Provided is a vehicle such that productivity and vehicle performance can be increased while passenger safety is ensured. A vehicle according to a first embodiment is provided with: a pair of roof-side rails (3); a roof reinforcement (5); and a pillar (7). The pillar (7) includes a pillar inner panel (73). The pillar inner panel (73) has a bendable portion (75) and a reinforcement portion (77). In this vehicle, when a predetermined load (F) acts on a joint between the roof-side rails (3) and the pillar (7), the predetermined load (F) is concentrated on the bendable portion (75) and the bendable portion (75) is bent. The bendable portion (75) absorbs some of the predetermined load (F) by bending. Bending of portions of the pillar inner panel (73) other than the bendable portion (75) is made difficult by the reinforcement portion (77). Thus, in this vehicle, deformation of the pillar (7) or the roof reinforcement (5) by the predetermined load (F) can be suppressed.

Description

vehicle

The present invention particularly relates to a vehicle characterized by pillars.

The vehicle includes a pair of roof side rails that extend in the vehicle longitudinal direction at both ends in the vehicle width direction, a roof reinforcement that extends in the vehicle width direction and is joined to both roof side rails, and each roof side rail that is joined to the vehicle. A downwardly extending pillar may be provided. In such a vehicle, in order to ensure the safety of the occupant, a certain level of strength against a load acting on the joint portion between the roof side rail and the pillar is required.

For this reason, Patent Document 1 discloses a vehicle in which a pillar has first reinforcing means and second reinforcing means. The first reinforcing means and the second reinforcing means extend along the vertical direction of the pillar, and the second reinforcing means is provided below the first reinforcing means with a space therebetween.

In this vehicle, when the above load is applied, the pillar is deformed, and the first reinforcing means and the second reinforcing means come into contact with each other. Thereby, the load is transmitted toward the axial direction of the pillar, that is, downward of the pillar, and the pillar is suppressed from being deformed to the passenger compartment side. For this reason, in this vehicle, the safety of the passenger is ensured.

JP 2010-162973 A

By the way, the vehicle is required to improve productivity and improve vehicle performance such as fuel efficiency by reducing weight. In this regard, the vehicle disclosed in Patent Document 1 is concerned about these.

The present invention has been made in view of the above-described conventional situation, and it is an object to be solved to provide a vehicle capable of improving productivity and vehicle performance while ensuring passenger safety. .

A vehicle according to one aspect of the present invention includes a pair of roof side rails extending in the vehicle longitudinal direction at both ends in the vehicle width direction, a roof reinforcement extending in the vehicle width direction and joined to both the roof side rails, In a vehicle provided with a pillar outer panel provided on the outside, a pillar inner panel joined to the pillar outer panel and provided on the passenger compartment side, and a pillar joined to each roof side rail and extending downward in the vehicle The upper portion of each pillar inner panel is provided with a bendable portion that can be bent with respect to the roof side rail by a predetermined load acting on a joint portion with the roof side rail.

In the vehicle according to one aspect of the present invention, each pillar inner panel has a bendable portion. Since the bendable part is provided in the upper part of each pillar inner panel, this bendable part is located in the vicinity of the connection part of a roof side rail and a pillar inner panel. For this reason, in this vehicle, the predetermined load acts on the joint portion with the roof side rail, so that the predetermined load is concentrated on the bendable portion.

Normally, when a force is applied from a part to a cylindrical steel plate having a closed cross section such as a pillar, the steel plate is expanded and stretched, and is more easily compressed and crushed. Therefore, by providing a bendable portion in the vicinity of the joint portion between the pillar inner panel and the roof side rail, in this vehicle, when a predetermined load acts on the joint portion between the roof side rail and the pillar inner panel, the pillar inner panel Only the upper part of the panel is deformed to the passenger compartment side. At this time, the bendable part absorbs a part of the predetermined load by being bent by itself. For this reason, a load smaller than that before the bendable portion is bent acts on the roof side rail, the roof reinforcement, and the pillar.

In addition, when the bendable part is bent in this manner, the line of action of the load acting on the pillar approaches the lower end of the pillar. For this reason, a load acts on the pillar in a direction different from that before the bendable portion bends. Further, the moment formed by the product of the load and the length of the pillar is also smaller than before the bendable portion is bent. For these reasons, in the pillar, portions other than the bendable portion are difficult to bend. Thereby, in this vehicle, it becomes possible to suppress the deformation | transformation of the whole pillar by the above predetermined loads, and it becomes difficult to deform | transform a pillar to the compartment side except a bendable part.

Thus, in this vehicle, it is possible to more suitably suppress the pillar from falling into the passenger compartment due to a predetermined load.

Also, in this vehicle, if the pillar inner panel has a bendable part, the thickness of other roof side rails and roof reinforcements can be increased, or materials with higher strength than necessary can be used. It is not always necessary to reinforce. For this reason, in this vehicle, it is possible to improve productivity. In addition, in this vehicle, it is possible to avoid an increase in weight, and thus it is possible to realize good fuel efficiency performance and improved response performance to operations.

Therefore, the vehicle according to one aspect of the present invention can improve productivity and vehicle performance while ensuring the safety of passengers.

The bendable portion can be formed, for example, by forming the portion of the pillar thinner than other portions.

In one embodiment, the pillar inner panel may be provided with a reinforcing portion below the bendable portion. In this case, the bendable portion can be reliably bent, and the strength of the lower portion of the pillar inner panel, that is, the lower portion of the pillar, can be increased. For this reason, it becomes possible to further suppress deformation of the entire pillar due to a predetermined load, and the pillar is less likely to be deformed on the vehicle compartment side except for the bendable portion. In addition, a reinforcement part can be formed by welding reinforcement members, such as a metal plate, with respect to a pillar, for example.

In one embodiment, the reinforcing portion may be a rib that continuously extends downward from the bendable portion and is provided on the pillar inner panel. In this case, the rib can be easily formed by performing press working or the like on the pillar inner panel. For this reason, it becomes possible to further improve the productivity of the vehicle.

In addition, by projecting the ribs in this way, in the pillar inner panel below the bendable portion, the surface portion decreases and the corner portion increases. By this corner portion, the strength of the reinforcing portion, that is, the lower portion of the pillar can be sufficiently increased.

In one embodiment, a plurality of ribs may be provided. In this case, in the pillar inner panel below the bendable portion, the surface portion is further reduced and the corner portion is further increased. For this reason, the strength of the pillar inner panel and hence the lower part of the pillar is further increased. Thereby, it becomes possible to suppress the deformation of the pillars more suitably.

In one embodiment, the bendable part may have a flat part formed on the pillar inner panel. In this case, the flat portion increases the surface portion of the bendable portion, and the strength of the bendable portion can be intentionally reduced. Thereby, in this vehicle, the bendable part is easily bent by a predetermined load. Further, in this vehicle, in addition to the degree of bending when the bendable portion bends, it is easy to adjust the position where the bendable portion is bent.

In one embodiment, the bendable part may have a through hole or a thin part penetrating through the flat part. In this case, the load is concentrated on the through hole or the thin wall portion. For this reason, in this vehicle, the bendable portion is more easily bent. In addition, by adjusting the position of the through hole or the thin portion in the bendable portion, the position where the bendable portion is bent can be easily adjusted.

In one embodiment, the bendable part may have a protrusion formed on the flat part so as to approach the pillar outer panel. In this case, the protruding portion formed on the flat portion is formed so as to approach the pillar outer panel from the pillar inner panel side, that is, the protruding portion protrudes from the passenger compartment side toward the vehicle outer side. Since the section modulus of the flat portion is reduced by the protrusion, the bendable portion is more easily bent in this vehicle. Moreover, it becomes easy to adjust the position where a bendable part bends by adjusting the position of the through hole or thin part in a bendable part similarly to said through-hole and thin-walled part.

The vehicle of the present invention can improve productivity and vehicle performance while ensuring passenger safety.

FIG. 1 is a perspective view illustrating a vehicle according to a first embodiment. FIG. 2 is a partial top view showing the roof side rail and the roof reinforcement according to the vehicle of the first embodiment. FIG. 3 is a cross-sectional view illustrating a connection portion of the roof side rail, the roof reinforcement, and the pillar according to the vehicle of the first embodiment. FIG. 4 is a cross-sectional view taken along the line IV-IV ′ in FIG. FIG. 5 is a cross-sectional view in the V-V ′ direction in FIG. FIG. 6 is a partial perspective view illustrating a connection portion between the roof side rail and the pillar according to the vehicle of the first embodiment. FIG. 7 is a cross-sectional view illustrating a deformed state of a connection portion of the roof side rail, the roof reinforcement, and the pillar when a predetermined load is applied to the vehicle according to the first embodiment. FIG. 8 is a partial perspective view illustrating a connection portion between the roof side rail and the pillar according to the vehicle of the second embodiment. FIG. 9 is a perspective view illustrating a part of the pillar inner panel according to the vehicle of the third embodiment. FIG. 10 is a cross-sectional view illustrating the pillar in the X-X ′ direction of FIG. 9 according to the vehicle of the third embodiment.

Embodiments 1 to 3 embodying the present invention will be described below with reference to the drawings.

Example 1
As shown in FIG. 1, the vehicle according to the first embodiment includes a roof side rail 3, a roof reinforcement 5, and a pillar 7. These roof side rails 3, roof reinforcements 5 and pillars 7 are all formed of a steel material that is employed in a general vehicle (passenger automobile). A vehicle skeleton 9 is formed by the roof side rail 3, the roof reinforcement 5, the pillar 7, and the like. The skeleton 9 is covered with

body members

11 and 13 that form the appearance of the vehicle.

As shown in FIG. 2, the roof side rails 3 are provided at both ends in the vehicle width direction, that is, at the right end and the left end of the vehicle, respectively, and each roof side rail 3 extends in the front-rear direction of the vehicle. These roof side rails 3 have the same configuration.

As shown in FIG. 3, the roof side rail 3 has a rail outer panel 31 provided on the vehicle exterior side, and a rail inner panel 33 provided on the vehicle interior CR side. The rail outer panel 31 and the rail inner panel 33 are formed in a predetermined shape by pressing or the like according to the shape of the vehicle. The rail outer panel 31 and the rail inner panel 33 are joined to each other on the upper end side. The upper end of the rail outer panel 31 and the upper end of the rail inner panel 33 are also joined to the

body members

11 and 13. On the other hand, the lower end of the rail outer panel 31 and the lower end of the rail inner panel 33 are joined to each other while sandwiching the upper end of a pillar inner panel 73 described later. In addition, these joining is performed by spot welding.

As shown in FIG. 2, the roof reinforcement 5 extends in the vehicle width direction and is joined to both the roof side rails 3. The roof reinforcement 5 is press-worked and has an uneven surface. Due to the uneven surface, the roof reinforcement 5 has a substantially M-shaped vertical cross section.

As shown in FIG. 3, brackets 15 are joined to both ends of the roof reinforcement 5 (in FIG. 3, only the bracket 15 at the left end of the roof reinforcement 5 is shown). The bracket 15 is joined to the rail inner panel 33, and the roof side rail 3 and the roof reinforcement 5 are joined via the bracket 15.

As shown in FIG. 1, the pillars 7 are provided at the right end and the left end of the vehicle, respectively. The pillar 7 provided at the right end of the vehicle is joined to the roof side rail 3 also provided at the right end of the vehicle. The pillar 7 provided at the left end of the vehicle is joined to the roof side rail 3 provided at the left end of the vehicle. Each of these pillars 7 extends from above the vehicle to below the vehicle. The structure of each pillar 7 is the same.

As shown in FIG. 3, the pillar 7 has a pillar outer panel 71 provided on the outside of the vehicle and a pillar inner panel 73 provided on the passenger compartment CR side. The upper end of the pillar outer panel 71 is joined to the rail outer panel 31. Further, as described above, the upper end of the pillar inner panel 73 is joined to the rail outer panel 31 and the rail inner panel 33 while being sandwiched between them. Further, as shown in FIGS. 4 and 5, the pillar outer panel 71 and the pillar inner panel 73 are joined to each other at both ends in the front-rear direction.

As shown in FIG. 6, the pillar inner panel 73 is provided with a bendable portion 75 and a reinforcing portion 77. In the pillar inner panel 73, the bendable portion 75 is located above the reinforcing portion 77. More specifically, the bendable portion 75 is an upper end side of the pillar inner panel 73 and is a joint portion between the rail outer panel 31 and the rail inner panel 33, that is, a joint portion between the roof side rail 3 and the pillar 7. It is formed in the vicinity.

The bendable portion 75 and the reinforcing portion 77 are formed by pressing the pillar inner panel 73, respectively. By this press working, the bendable portion 75 is constituted by a flat portion 75a. The flat portion 75a is located on the upper part of the pillar inner panel 73 (the vehicle upper side in the skeleton 9). The reinforcing portion 77 is constituted by two

ribs

77a and 77b continuously extending downward from the flat portion 75a (bendable portion 75). The

ribs

77a and 77b are provided so as to project toward the passenger compartment CR. In addition, illustration of the pillar outer panel 71 is abbreviate | omitted in FIG. The same applies to FIG. 8 described later.

Due to the flat part 75a, the bendable part 75 is formed by only the surface part as shown in FIG. Further, as shown in FIG. 5, the proportion of the surface portion is lower than the bendable portion 75, that is, the reinforcing portion 77 is smaller than the bendable portion 75. Many are formed.

In this vehicle, public supplies are used for the drive device and various operation devices necessary for traveling. For this reason, the detailed description regarding these structures is abbreviate | omitted.

The vehicle configured as described above functions as follows when a load is applied from the joint portion of the roof side rail 3 and the pillar 7, that is, from above the body member 13 shown in FIG. 1.

As shown in FIG. 7, in this vehicle, the predetermined load F is concentrated on the bendable portion 75 because the predetermined load F acts on the joint portion between the roof side rail 3 and the pillar 7. As described above, since the bendable portion 75 is configured by the flat portion 75a, the bendable portion 75 is formed by only the surface portion, and the strength of the bendable portion 75 itself is reduced. Thereby, as shown in FIG. 7, the bendable portion 75 (flat portion 75a) is bent by the concentrated predetermined load F, and the portion above the bendable portion 75 in the pillar 7 is bent toward the vehicle interior CR side. To do. At this time, the bendable portion 75 absorbs a part of the predetermined load F by being bent by itself. For this reason, a smaller bending load acts on the roof side rail 3, the roof reinforcement 5, and the pillar 7 than before the bendable portion 75 bends.

Further, when the bendable portion 75 is bent in this manner, the line of action of the load acting on the pillar inner panel 73 approaches the lower end of the pillar inner panel 73. Therefore, a load is applied to the pillar inner panel 73 in a direction different from that before the bendable portion 75 bends (see the dashed line arrow in the same figure. Note that the dashed arrow in the vicinity of the dashed line arrow indicates the bendable portion. The direction of the acting line of the load acting on the pillar inner panel 73 before 75 is bent is shown.).

Further, since the bendable portion 75 is bent, the lengths in the vertical direction of the pillar outer panel 71 and the pillar inner panel 73 are shortened. Therefore, the bendable portion also has a moment formed by the product of the load and the length of the pillar 7. Smaller than before bending. As described above, the line of action of the load acting on the pillar inner panel 73 is in the direction of the one-dot chain line. Will act.

In the pillar inner panel 73, two

ribs

77a and 77b are provided so as to protrude below the flat portion 75a, that is, the bendable portion 75. By projecting these

ribs

77a and 77b, the corner portions of the pillar inner panel 73 below the bendable portion 75 are increased as described above. Due to this corner portion, the strength of the portion below the bendable portion 75 in the pillar inner panel 73 is sufficiently high. That is, the resistance to the moment is high below the pillar inner panel 73. For these reasons, the pillar inner panel 73 is difficult to bend other than the bendable portion 75 as shown in FIG. As a result, in this vehicle, as described above, it is possible to suppress the entire pillar 7 from being deformed so as to collapse toward the passenger compartment CR due to the predetermined load F.

Further, in this vehicle, if the pillar inner panel 73 is provided with the reinforcing portion 77, that is, the

ribs

77a and 77b, the thickness of the lower portion of the pillar inner panel 73 and the roof reinforcement 5 is made thicker than the bendable portion 75. There is no need to reinforce it by adopting a material with higher strength than necessary or by adding reinforcing parts. For this reason, in this vehicle, it is possible to improve productivity. In addition, in this vehicle, it is possible to avoid an increase in weight, so that it is possible to realize good fuel efficiency performance and improved response performance to operations.

Therefore, the vehicle according to the first embodiment can improve productivity and vehicle performance while ensuring the safety of passengers.

In particular, in this vehicle, in the pillar inner panel 73, the bendable portion 75 and the reinforcing portion 77 are configured by a flat portion 75a and

ribs

77a and 77b, respectively. And these flat part 75a and

rib

77a, 77b are formed when the pillar inner panel 73 is press-molded. For this reason, the bendable portion 75 and the reinforcing portion 77 can be easily provided on the pillar inner panel 73, and the productivity of the vehicle is increased.

Further, as shown in FIG. 4, in this vehicle, the strength of the bendable portion 75 is intended without changing the plate thickness of the pillar inner panel 73 by making the bendable portion 75 only the surface portion by the flat portion 75a. Can be reduced. On the other hand, by projecting the

ribs

77a and 77b, in the pillar inner panel 73 below the bendable portion 75, as shown in FIG. 5, the surface portion decreases and the corner portion increases. The corner portion increases the strength of the reinforcing portion 77, that is, the portion below the bendable portion 75 in the pillar inner panel 73. Thus, in this vehicle, it is easy to adjust the bending position in addition to the bending degree when the bendable portion 75 of the pillar inner panel 73 is bent by the predetermined load F.

Here, in this pillar inner panel 73, since the two

ribs

77a and 77b are convexly provided, the corner portion is further increased as compared with the case where the single rib is convexly provided. For this reason, the strength of the portion below the bendable portion 75 in the pillar inner panel 73 is sufficient.

(Example 2)
In the pillar inner panel 73 in the vehicle according to the second embodiment, the bendable portion 75 includes a flat portion 75b and a through hole 75c as shown in FIG. The flat portion 75b is formed by pressing so that the substantially central portion of the pillar inner panel 73 protrudes toward the passenger compartment CR as a whole. The through hole 75c is formed in the central portion of the flat portion 75b. On the other hand, the reinforcing portion 77 is constituted by a single rib 77c extending continuously downward from the flat portion 75b. The rib 77c is provided so as to protrude toward the outside of the vehicle. Other configurations of this vehicle are the same as those of the vehicle of the first embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

Also in this vehicle, when the predetermined load F (see FIG. 7) acts on the joint portion between the roof side rail 3 and the pillar 7, the predetermined load F is concentrated on the bendable portion 75. At this time, in particular, the predetermined load F is concentrated around the through hole 75c. The concentrated predetermined load F causes the bendable portion 75, more specifically, the periphery of the through hole 75c in the flat portion 75b to be bent. Thereby, the part above the bendable part 75 in the pillar 7 bends toward the passenger compartment CR. Here, the bendable portion 75 has the flat portion 75b and the through hole 75c, and thus has a lower strength than the vehicle of the first embodiment. For this reason, in this vehicle, the bendable portion 75 is more easily bent than in the vehicle of the first embodiment.

On the other hand, in the pillar inner panel 73, the portion below the bendable portion 75 has a higher strength by the rib 77c. Here, in this vehicle, only one rib 77c is formed, but as described above, the pillar inner panel 73 is pressed so that the periphery of the rib 77c protrudes toward the passenger compartment CR. Therefore, the surface part in the reinforcement part 77 is few. For this reason, the strength of the portion below the bendable portion 75 is sufficiently high, and the pillar inner panel 73 and the pillar 7 in this vehicle are also difficult to bend except for the bendable portion 75. Other functions and effects are the same as those of the vehicle of the first embodiment.

Therefore, the vehicle of the second embodiment can also improve productivity and vehicle performance while ensuring the safety of passengers.

(Example 3)
The vehicle of the third embodiment has a pillar inner panel 79 shown in FIG. 9 instead of the pillar inner panel 73 in the vehicle of the first embodiment. That is, in this vehicle, the pillar inner panel 79 and the pillar outer panel 71 shown in FIG. 10 constitute the pillar 7.

As shown in FIG. 9, the pillar inner panel 79 includes a pair of

flanges

79a and 79b, and a base 79c formed between the flange 79a and the flange 79b. The

flanges

79a and 79b and the base 79c extend downward from the upper side of the vehicle, respectively. The pillar inner panel 9 is not provided with the reinforcing portion 77 such as the ribs 77a to 77c in the first and second embodiments.

The upper end of the pillar inner panel 79 is joined to the rail outer panel 31 and the rail inner panel 33 while being sandwiched between the rail inner panel 73 and the rail inner panel 33 (see FIG. 3). As shown in FIG. 10, the pillar inner panel 79 is joined to the pillar outer panel 71 at the

flanges

79a and 79b.

As shown in FIG. 9, the

flanges

79a and 79b and the base 79c are formed by pressing the pillar inner panel 79, respectively. Further, by this pressing, the entire base portion 79c is constituted by a flat portion 75d.

An upper portion of the flat portion 75d (base 79c), more specifically, an upper end side of the pillar inner panel 79, and a joint portion (the roof side rail 3 and the pillar 7 between the rail outer panel 31 and the rail inner panel 33). A projecting portion 79d is formed in the vicinity of the joint portion. The protrusion 79d is formed by pressing the upper portion of the flat portion 75d, and extends from the flange 79a side to the flange 79b side, that is, from the front to the rear of the vehicle. Further, as shown in FIG. 10, the protruding portion 79d protrudes from the base 79c side (pillar inner panel 79 side) to the pillar outer panel 71, that is, protrudes from the passenger compartment CR side toward the vehicle outer side. Is formed.

In this vehicle, a portion that is an upper portion of the flat portion 75d (base portion 79c) and is formed with the protruding portion 79d is a bendable portion 75. Other configurations of this vehicle are the same as those of the vehicle of the first embodiment.

In this vehicle, since the projecting portion 79d is formed, the section modulus at the upper portion of the flat portion 75d (base portion 79c) is smaller than that of other portions of the base portion 79c. Therefore, in this vehicle, the predetermined load F (see FIG. 7) acts on the joint portion between the roof side rail 3 and the pillar 7 so that the predetermined load F concentrates on the protruding portion 79d, that is, the bendable portion 75. . The bendable portion 75 is bent by the concentrated predetermined load F. Thereby, the part above the bendable part 75 in the pillar 7 bends toward the passenger compartment CR. At this time, since the bendable part 75 absorbs a part of the predetermined load F by being bent, the bending load on the base 79c (flat part 75d) which is a lower part than the bendable part 75 is reduced. The For this reason, the pillar 7 in this vehicle is also difficult to bend except for the bendable portion 75. Other functions and effects are the same as those of the vehicle of the first embodiment.

Therefore, the vehicle of the third embodiment can also improve productivity and vehicle performance while ensuring the safety of passengers.

In the above, the present invention has been described with reference to the first to third embodiments. However, the present invention is not limited to the first to third embodiments, and can be applied with appropriate modifications without departing from the spirit of the present invention. Needless to say.

For example, for Example 2, a thin portion may be formed instead of the through hole 75c. In this case, like the through hole 75c, the predetermined load F is concentrated around the thin portion. For this reason, even if it is a vehicle in this case, there exists an effect similar to the case where the through-hole 75c is provided in the bendable part 75. FIG. Note that the thin portion can be formed, for example, by cutting a part of the bendable portion 75.

Further, a through hole 75c, a protruding portion 79d, or a thin portion may be formed in the bendable portion 75 of the pillar inner panel 73 of the first embodiment.

Furthermore, in the pillar inner panel 73 of the first embodiment, only the rib 77a may be provided, or three or more ribs may be provided. Furthermore, in the pillar inner panel 73 of the second embodiment, two or more ribs may be provided. Similarly to the third embodiment, the pillar inner panel 73 of the first and second embodiments may be configured such that the reinforcing portions 77 such as the ribs 77a to 77c are not provided.

The present invention can be used for vehicles such as passenger cars and industrial vehicles.

DESCRIPTION OF SYMBOLS 3 ... Roof side rail, 5 ... Roof reinforcement, 7 ... Pillar, 71 ... Pillar outer panel, 73 ... Pillar inner panel, 75 ... Bendable part, 75a ... Flat part, 75b ... Through-hole, 77 ... Reinforcement part, 77a, 77b, 77c ... rib, 79 ... pillar inner panel, 79c ... flat part, 79d ... projecting part, CR ... vehicle compartment.

Claims

A pair of roof side rails extending in the vehicle longitudinal direction at both ends in the vehicle width direction;
A roof reinforcement extending in the vehicle width direction and joined to both the roof side rails;
A vehicle having a pillar outer panel provided on the outside of the vehicle, a pillar inner panel joined to the pillar outer panel and provided on the vehicle interior side, and a pillar joined to each roof side rail and extending downward in the vehicle. In
A vehicle, characterized in that a bendable portion that can be bent with respect to the roof side rail by a predetermined load acting on a joint portion with the roof side rail is provided at an upper portion of each pillar inner panel.
The vehicle according to claim 1, wherein the pillar inner panel is provided with a reinforcing portion below the bendable portion.
The vehicle according to claim 2, wherein the reinforcing portion is a rib that continuously extends downward from the bendable portion and protrudes from the pillar inner panel.
4. The vehicle according to claim 3, wherein there are a plurality of ribs.
The vehicle according to any one of claims 1 to 4, wherein the bendable portion has a flat portion formed on the pillar inner panel.
6. The vehicle according to claim 5, wherein the bendable part has a through hole or a thin part penetrating the flat part.
The vehicle according to claim 5, wherein the bendable portion has a protruding portion formed on the flat portion so as to approach the pillar outer panel.