JP6767460B2 - Cross-section hat member for vehicles - Google Patents

Description

The present invention relates to a cross-section hat member for a vehicle used in a vehicle such as an automobile.

For example, Patent Document 1 discloses a vehicle body structure in which a hinge bracket is joined and fixed to the back surface of a lower door hinge mounting portion of a front pillar having a box-shaped cross section formed by a front pillar outer and a front pyriner. ..

Patent Document 1 states that such a configuration makes it possible to firmly connect the lower end portion of the front pillar and the front end portion of the side sill.

Jikkai Sho 63-123371

By the way, when the engine hood opener is attached to the lower side of the front pillar, for example, the joint position between the lower end of the split front pillar upper and the upper end of the front pillar lower is downward as compared with the conventional case. Need to change.

However, when the connection position between the lower end of the front pillar upper and the upper end of the front pillar lower is changed downward, for example, when an offset collision load is input to the front part of the vehicle body, the front pillar upper and the front pillar lower are used. There is a risk that the binding site with will peel off.

The present invention has been made in view of the above points, and is a cross-sectional hat for vehicles that can secure a desired bonding strength even when the bonding position is changed downward as compared with the conventional case. The purpose is to provide a member.

In order to achieve the above object, the present invention has a pair of flanges having a cross section extending in the front-rear direction of the vehicle, a pair of legs having a cross section extending in the substantially vehicle width direction, and a pair of legs. A vehicle cross-sectional hat member having a main body portion located and opening inward in the vehicle width direction or outward in the vehicle width direction, the vehicle cross-sectional hat member includes an upper portion located on the upper side in the vehicle vertical direction and a vehicle. It is composed of a lower portion located on the lower side in the vertical direction, and at least the main body portion has a plurality of fixing points at which the upper portion and the lower portion are connected, and the plurality of fixing points are side surfaces from the vehicle width direction. It is characterized in that it is arranged in a substantially U-shape when viewed.

In the present invention, it is possible to obtain a cross-sectional hat member for a vehicle capable of ensuring a desired bonding strength even when the bonding position is changed downward as compared with the conventional case.

It is a partially broken side view which shows the vehicle body side part of the vehicle to which the cross-sectional hat member for a vehicle which concerns on embodiment of this invention is applied. It is a partially enlarged fracture side view of FIG. It is a cross-sectional view along the line III-III of FIG. It is a partially broken side view which shows the state which the side sill reinforcement is exposed by removing the front pyraine lower from the state shown in FIG. It is a cross-sectional view along the VV line of FIG. It is a vertical cross-sectional view along the VI-VI line of FIG. It is a partially enlarged side view which shows a plurality of joint points arranged in a substantially U shape at the joint part of the front pyraine upper and the front pyraine lower. It is a side view of the front pyraine narrower to which the cross-sectional hat member for a vehicle which concerns on the 1st comparative example devised by this applicant is applied. FIG. 8A is a side view of a front pillower to which a cross-sectional hat member for a vehicle according to the present embodiment is applied, corresponding to FIG. 8A. It is a side view which shows the state which the offset load F is input to the front pyraine narrower to which the cross-section hat member for a vehicle which concerns on the 2nd comparative example devised by this applicant is applied. FIG. 5 is a side view showing a state in which an offset load F is input in the present embodiment shown in FIG. 8B. In the second comparative example shown in FIG. 9A, it is explanatory drawing which shows the state which the front pyraine narrower was deformed into an inverted conical shape when the offset load F was input. It is explanatory drawing which shows the number of spot welding points arranged in a certain width in 1st and 2nd comparative example and this embodiment. In this embodiment, it is a schematic diagram showing a state in which peeling stress is uniformly input to a plurality of joint points arranged in a substantially U shape. It is explanatory drawing which shows the separation interval of a plurality of junction points.

Next, an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. FIG. 1 is a partially fractured side view showing a vehicle body side portion to which the vehicle cross-sectional hat member according to the embodiment of the present invention is applied, FIG. 2 is a partially enlarged fracture side view of FIG. 1, and FIG. It is a cross-sectional view along the line III-III of FIG. In each figure, "front and rear" indicates the vehicle front and rear direction, "up and down" indicates the vehicle up and down direction, and "left and right" indicates the left and right direction (vehicle width direction) as seen from the driver's seat.

As shown in FIG. 1, the vehicle body side portion 10 to which the vehicle cross-section hat member (front pillar lower structure) according to the embodiment of the present invention is applied includes a front pillar 12, a side sill 14, and a center pillar 15. It is configured with. Note that FIG. 1 is a view of the vehicle body side portion 10 on the right side as viewed from the vehicle interior, and the vehicle body side portion on the left side is also arranged symmetrically with the vehicle body side portion 10 on the right side.

The side sill 14 is arranged below the vehicle body side portion 10 so as to extend along the vehicle front-rear direction, and supports a side portion of a floor panel (not shown). The front pillar 12 is arranged at the front end of the side sill 14 of the vehicle, and is arranged so as to stand upright along the vertical direction of the vehicle.

As shown in FIG. 3, the front pillar 12 has a front pillower 16 located on the vehicle interior side and a front pillar outer 18 located on the vehicle outer side.

As shown in FIG. 2, the front pyrinner 16 is divided along the vertical direction of the vehicle, and is located on the upper side of the vertical direction of the vehicle and the upper 20 of the front pyrinner and the lower side of the vertical direction of the vehicle. It is equipped with a front pillower (lower part) 22. The front pillower 22 has a cross-section hat shape (see FIG. 3), and functions as a cross-section hat member for a vehicle that opens outward in the vehicle width direction.

Further, the front pillar outer 18 is divided along the vertical direction of the vehicle like the front pillar outer 16, and the front pillar outer upper located on the upper side in the vertical direction of the vehicle and the front located on the lower side in the vertical direction of the vehicle. It is equipped with a pyraoutaroa.

The front pillower 22 is composed of a pair of flange portions 24, 24, a pair of leg portions 26, 26, and a main body portion 28. The pair of flange portions 24, 24 are located at the vehicle front end portion and the vehicle rear end portion of the front pyramid inner lower 22, and their cross sections extend in the vehicle front-rear direction. The pair of leg portions 26, 26 are continuous with each flange portion 24, and the cross section extends in the substantially vehicle width direction. The main body 28 is located between the pair of legs 26, 26, and connects one leg 26 on the front side of the vehicle and the other leg 26 on the rear side of the vehicle.

The main body portion 28 and each flange portion 24 have a plurality of joint points (fixing points) 30 that integrally connect the lower end portion of the front pyrinner upper 20 and the upper end portion of the front pyrinner lower 22. The plurality of joint points 30 are spot welded using, for example, a spot welding device (not shown). An opening 32 that opens upward in the vertical direction of the vehicle is formed in the center of the upper part of the main body 28. A pair of projecting portions 34, 34 are provided on both sides of the opening 32 along the vehicle front-rear direction.

A plurality of joint points 30 are arranged in a substantially U-shape when viewed from the vehicle width direction in a portion near the lower side of the opening 32 including the pair of protrusions 34, 34. The plurality of joint points 30 are arranged in a substantially U shape that opens upward in the vertical direction of the vehicle. Further, the plurality of joint points 30 are located below the upper end 36a of the wheel (right front wheel) 36 when viewed from the vehicle width direction (see FIG. 1). The distance S between the centers of the plurality of adjacent joint points 30 is about 15 mm. In this embodiment, the case where four joint points 30 are arranged is illustrated, but the number of the plurality of joint points 30 is not limited to this.

As shown in FIG. 2, a plurality of joint points 31a are arranged on the flange portion 24 on the front side of the vehicle along the vertical direction of the vehicle. Further, on the flange portion 24 on the rear side of the vehicle, a plurality of joint points 31b are arranged in a substantially arc shape from above to below the flange portion 24.

Further, the main body portion 28 has a pair of constricted shaped portions 38, 38 constricted in the front-rear direction of the vehicle at the joint portion between the lower end portion of the front pyrinner upper 20 and the upper end portion of the front pyrinner lower 22. (See the thick dashed line in Fig. 2). The pair of constricted shaped portions 38, 38 are formed by a ridge line between the main body portion 28 and the leg portion 26, and extend over both the front pyrinner upper 20 and the front pyrinna lower 22. ..

The pair of constricted shape portions 38, 38 are located on the front side of the vehicle of the main body portion 28 and are constricted in a substantially arc shape toward the rear side of the vehicle, and are located on the rear side of the vehicle of the main body portion 28. It has the other constricted shape portion 38 which is curved and constricted toward the front side of the vehicle.

The constricted portion 38 on the rear side of the vehicle has a bead portion 40 (see FIG. 3) provided on the leg portion 26 on the rear side of the vehicle. The bead portion 40 extends along the longitudinal direction of the leg portion 26, and has a fan-shaped cross section in the vertical direction of the vehicle (see FIG. 3). The bead portion 40 is continuously provided not only on the front pyrinner lower 22 but also on the front pyrinner upper 20.

A pair of projecting portions 34, 34 are provided at the upper end of the main body portion 28 of the front pillower 22 so as to project upward in the vehicle. Two joint points 30 located at the upper ends of a substantially U-shape are arranged on the pair of protrusions 34, 34, respectively.

A side sill reinforcement 42, which will be described later, is arranged between the front pirain na upper 20 and the front pirain na lower 22. The lower end of the front pirainer upper 20 is sandwiched between the front pirainer lower 22 and the side sill reinforcement 42. In other words, the plurality of joint points 30 arranged in a substantially U shape when viewed from the side in the vehicle width direction are the lower end portion of the front pyrinner upper 20, the upper end portion of the front pyrinner lower 22, and the side sill reinforcement 42. It is configured as a welding point in which three sheets of the above are superposed and spot-welded.

As shown in FIG. 5, the side sill 14 includes a side sill inner 44 located on the passenger compartment side (inside in the vehicle width direction), a side sill outer 46 located on the outside of the vehicle (outside in the vehicle width direction), and a vehicle front of the side sill 14. It has a side sill reinforcement 42 located at the end and located between the side sill inner 44 and the side sill outer 46. A flat plate-shaped jack-up plate 48 (see FIG. 4) is attached to the front side of the vehicle at the lower end of the side sill 14 (side sill inner 44).

As shown in FIG. 4, the jack-up plate 48 has a substantially rectangular shape when viewed from the side, and is made of a metal material having high rigidity and strength. The "jack-up plate 48" is for bringing a jack (not shown) into contact with the jack-up plate 48 and adjusting (jacking up) the separation interval between the vehicle body and the road surface by operating a jack (not shown).

Further, as shown in FIG. 5, the lower portion of the side sill reinforcement 42 is joined so as to close the opening of the hat-shaped cross section of the side sill inner 44. At the same time, as shown in FIG. 6, the upper portion of the side sill reinforcement 42 is joined so as to close the opening of the hat-shaped cross section of the front pyrinner 16 (front pyrinner lower 22). The space on the side sill inner 44 side and the space on the front pirainer 16 side closed by the side sill reinforcement 42 are arranged adjacent to each other along the vertical direction of the vehicle (see FIG. 5).

Further, as shown in FIG. 4, a part of the side sill reinforcement 42 is extended to the front pillar side. That is, the upper portion of the side sill reinforcement 42 has an extending portion 50 that bends and extends inward in the vehicle width direction from the middle portion in the vertical direction of the vehicle toward the upper side. The extension end 52, which is the upper end of the extension portion 50, extends to a plurality of joint points 30 arranged in a substantially U shape.

Furthermore, the side sill reinforcement 42 is joined to the side sill 14 (side sill inner 44) at three points including the first to third joint points 54a to 54c. The first joint point 54a is located at the lower end of the side sill reinforcement 42 and is located in front of the jack-up plate 48. The second joint point 54b is located at the lower end of the side sill reinforcement 42 and behind the jack-up plate 48. The third joint point 54c is located between the first joint point 54a and the second joint point 54b in the vehicle front-rear direction, and is located above the jack-up plate 48. When viewed from the side, the triangle 56 is formed by connecting the first to third joint points 54a to 54c.

As shown in FIG. 4, a fragile portion 55a is provided between the first joint point 54a and the vehicle front end portion 48a of the jack-up plate 48. Further, another fragile portion 55b is provided between the vehicle rear end portion 48b of the jack-up plate 48 and the second joint point 54b.

The vehicle body side portion 10 to which the vehicle cross-section hat member according to the present embodiment is applied is basically configured as described above, and the effects thereof will be described next.

FIG. 8A is a side view of the front pillower to which the vehicle cross-sectional hat member according to the first comparative example devised by the applicant is applied, and FIG. 8B corresponds to FIG. 8A and relates to the present embodiment. A side view of the front pillower to which the vehicle cross-sectional hat member is applied, FIG. 9A shows the front pillower to which the vehicle cross-sectional hat member according to the second comparative example devised by the applicant is applied. 9B is a side view showing a state in which the offset load F is input, and FIG. 9B is a side view showing a state in which the offset load F is input in the present embodiment shown in FIG. 8B. Further, in the first comparative example shown in FIG. 8A, the joint position between the front pyrinner upper and the front pyrinner lower is set to a higher conventional position than that of the present embodiment shown in FIG. 8B. On the other hand, in the second comparative example shown in FIG. 9A, the joint position between the front pyrinner upper and the front pyrinner lower is set to the same position as that of the present embodiment shown in FIG. 9B. In the first and second comparative examples, the same components as those in the present embodiment are designated by the same reference numerals.

In the first comparative example shown in FIG. 8A, the lower end portion of the front pyrinner upper 20 and the upper end portion of the front pyrinner lower 22 constituting the front pyrinner 16 are arranged linearly along the horizontal direction. It is joined at three spot weld points 33. In addition, also in the second comparative example, the point that it is joined by three spot welding points 33 arranged linearly along the horizontal direction is the same as the first comparative example. The front pyrinner lower 22 and the front pyrinner upper 20 are each configured to have a cross-sectional hat shape.

In the second comparative example shown in FIG. 9A, when the offset load F is input from the front side of the vehicle, the load parallel to the vehicle front-rear direction with respect to the main body 28 of the front pillower 22 having a hat-shaped cross section. Works. The load parallel to the vehicle front-rear direction means a load in which the front wheel 36 retracts to the rear of the vehicle during an offset collision in the offset collision test (ODB test) mode and presses the front end of the front pillar 12 toward the rear of the vehicle. ..

As a result, in the second comparative example, since the front pillower 22 has a hat cross-sectional shape that opens outward, a load in the vehicle front-rear direction is input and the front pillower 22 faces inward and downward. It has an inverted conical shape that bulges (see FIG. 10). As a result, in the second comparative example, the spot welding point 33 of the front pillower 22 may be peeled off.

On the other hand, in the present embodiment, a plurality of (four) joint points 30 are arranged in a substantially U shape along the opening 32 of the front pillower 22 (see FIG. 7). As a result, in the present embodiment, it is possible to hit many spots in a region having a constant width, and the load input to the front pillower 22 is distributed to many joint points 30. As shown in FIG. 11, for example, in a constant width, in the first and second comparative examples, three spot welding points 33 can be spot-welded, whereas in the present embodiment, the height is high. Within a range having a width in the direction, four joint points 30 can be spot-welded.

Therefore, in the present embodiment, the peeling load carried by one joint point 30 can be reduced as compared with the first and second comparative examples. As a result, in the present embodiment, it becomes difficult to peel off the lower end portion of the front pyrinner upper 20 and the upper end portion of the front pyrinner lower 22 at the joint portion. Therefore, in the present embodiment, even when the joint position between the lower end portion of the front pyrinner upper 20 and the upper end portion of the front pyrinner lower 22 is changed to the lower side as compared with the conventional case, the desired joint strength ( Bond strength) can be secured.

Further, in the present embodiment, a plurality of joint points 30 are arranged so as to open upward in the vertical direction of the vehicle. As a result, in the present embodiment, the U-shaped arrangement of the plurality of joint points 30 is upward (the U-shaped opening is upward), so that the distance (deformation amount) before and after the deformation is viewed from the vehicle width direction. Is constant, and the peeling stress input to the plurality of joint points 30 can be made uniform. That is, since the arrangement of the plurality of U-shaped spot welding joint points 30 is an arrangement along the deformation of the inverted conical shape, the distance between before and after the deformation (deformation amount) when viewed from the vehicle width direction. ) Is substantially constant, and the peeling stress input to each joint point 30 can be made uniform (see the schematic diagram shown in FIG. 12). As a result, in the present embodiment, the peeling can be further suppressed by arranging the spot spots along the deformation mode of the hat cross section.

Further, in the present embodiment, the main body portion 28 has a pair of constricted shaped portions 38, 38 constricted in the front-rear direction of the vehicle at the joint portion between the front pyrinner upper 20 and the front pyrinner lower 22. .. The main body 28 is a portion having a relatively large amount of deformation in the cross section of the hat when the offset load F is input. In the present embodiment, by forming the constricted shapes 38 and 38 on both sides of the main body 28, the length in the front-rear direction of the vehicle can be shortened, and the amount of deformation of the inverted cone can be reduced. For example, the dimension A of the main body 28 in the vehicle front-rear direction in the first comparative example shown in FIG. 8A is larger than the dimension B of the main body 28 in the vehicle front-rear direction in the present embodiment shown in FIG. 8B (A). > B).

Furthermore, in the present embodiment, the constricted portion 38 has a bead portion 40 (see FIG. 3) provided on the leg portion 26 located at the rear of the vehicle. The bead portion 40 extends along the longitudinal direction of the leg portion 26 and has a fan-shaped (arc-shaped) cross section. As a result, in the present embodiment, the bead portion 40 is arranged in the vicinity of the plurality of joint points 30 arranged in a substantially U shape, so that the front pyramid inner lower 22 when an offset load is input. Deformation can be suppressed. Further, since the cross-sectional shape of the bead portion 40 is a fan shape (arc shape), for example, the spring constant is larger than in the case of a straight cross-sectional shape, and the side sill 14 is moved from the front end portion of the vehicle to the rear portion of the vehicle. There is an advantage that the bead portion 40 is less likely to be compressed by the collision load input toward the bead portion 40.

Furthermore, in the present embodiment, a pair of projecting portions 34, 34 projecting upward in the vehicle are provided at the upper end of the main body portion 28 of the front pillower 22. Joint points 30 located at the upper ends of a substantially U-shape are arranged on the pair of protrusions 34, 34, respectively.

In general, the more the plurality of joint points 30 are located at a horizontal position passing through the wheel center (WC) and higher (farther) than the load input point at the front end of the vehicle of the side sill 14, the more difficult it is for the joint parts to peel off. There is. For example, the vertical separation distance from the wheel center of the first comparative example shown in FIG. 8A to the joint portion is higher than the vertical separation distance D from the wheel center to the joint portion of the present embodiment shown in FIG. 9B. It is a position.

Therefore, in the present embodiment, a pair of projecting portions 34, 34 projecting upward are provided at two locations in the vehicle front-rear direction at the upper end of the main body portion 28 of the front pillower 22, and the pair of projecting portions 34, Of the four joint points 30 arranged in a substantially U-shape with respect to 34, the joint points 30 located at the tips of the substantially U-shape are arranged respectively. As a result, in the present embodiment, the two joint points 30 arranged on the pair of protrusions 34, 34 are located higher (far) than the load input point as compared with the other two joint points 30 (FIG. 7). It becomes possible to arrange it in ΔH shown in (1), which makes it even more difficult to peel off the joint portion.

Furthermore, in the present embodiment, the plurality of joint points 30 arranged in a U shape are located below the upper end of the wheel 36 when viewed from the side in the vehicle width direction. Thereby, in the present embodiment, by lowering the lower end position of the front pillow inner upper 20 to the lower side of the vehicle, for example, the arrangement position of the hood opener 58 (see FIG. 1) can be changed to a lower position as compared with the conventional one. it can. As a result, in the present embodiment, it is possible to preferably prevent the operator's arm from interfering (contacting) with the instrument panel (not shown) when operating the hood opener 58, and improve the operability. ..

Furthermore, in the present embodiment, the lower end portion of the front pyrinner upper 20 is sandwiched between the front pyrinner lower 22 and the side sill reinforcement 42. As a result, in the present embodiment, at the joint portion having a plurality of joint points 30 arranged in a substantially U shape, three pieces including the front piraina upper 20, the front piraina lower 22, and the side sill reinforcement 42 are formed. The peel strength can be improved by spot welding the members and firmly bonding them.

Furthermore, in the present embodiment, the side sill reinforcement 42 is joined so as to close the opening of the hat-shaped cross section of the side sill inner 44, and the side sill inner force 42 is joined so as to close the opening of the hat-shaped cross section of the front pyrinner 16. Has been done. Further, the side sill reinforcement 42 has an extending portion 50 that bends and extends inward in the vehicle width direction from the upper end in the vertical direction of the vehicle toward the lower side. The extension end 52, which is the upper end of the extension portion 50, extends to a plurality of joint points 30 arranged in a substantially U shape.

In the present embodiment, the closed cross section on the side silina 44 side and the closed cross section on the front pyrinner 16 side can be arranged adjacent to each other in the vertical direction of the vehicle. Thereby, in the present embodiment, the rigidity and strength of the portion where the front pillar 12 and the side sill 14 are orthogonal to each other can be improved. Further, in the present embodiment, an extension portion 50 that bends inward in the vehicle width direction is provided on the upper end side of the side sill reinforcement 42, and the extension end 52 of the extension portion 50 is arranged in a substantially U shape. It is extended to a plurality of joint points 30. As a result, in the present embodiment, the easily deformable extension portion 50 follows the offset collision test (ODB test) mode in which the front pyramid inner lower 22 has an inverted conical shape bulging inward and downward. Can be transformed.

Furthermore, in the present embodiment, the side sill reinforcement 42 is located at the first joint point 54a located in front of the jack-up plate 48 attached to the side sill 14 and behind the jack-up plate 48. It is joined to the side silina 44 at three points consisting of a second joint point 54b and a third joint point 54c located above the jack-up plate 48 of the vehicle.

The jack-up plate 48 itself has high rigidity and strength, and the weight of the vehicle body acts on the jack-up plate 48 during jack-up, so that the surroundings thereof may be easily deformed. On the other hand, in the present embodiment, the rigidity and strength around the jack-up plate 48 can be improved by joining the side sill reinforcement 42 to the side sill inner 44 at the first to third joint points 54a to 54c. ..

Furthermore, in the present embodiment, at the plurality of joint points 30 arranged in a substantially U shape, the distance between the centers of the plurality of adjacent joint points 30 is 7 mm to 18 mm (see FIG. 13). In the present embodiment, short pitch welding can be achieved by setting the distance between the plurality of joint points 30 in spot welding to 7 mm to 18 mm. More preferably, by setting the separation interval of the joint points 30 to 15 mm, the joint strength can be improved and the welding quality can be improved. If the distance between the joint points 30 is made closer than 7 mm (the distance between the joint points 30 is less than 7 mm), the electric discharge may occur at the adjacent joint points 30 and the joint strength of the joint portion may decrease.

10 Body side 12 Front pillar 14 Side sill 16 Front pillar outer 18 Front pillar outer 20 Front pillar upper (upper)
22 Front Pirain Naroa (Cross-section hat member for vehicles, lower part)
24 Flange part 26 Leg part 28 Main body part 30 Joint point (fixing point)
34 Protruding part 36 Wheel 38 Constricted part 40 Bead part 42 Side sill reinforcement 44 Side sill inner 46 Side sill outer 48 Jack-up plate 50 Extension part 52 Extension end 54a First joint point 54b Second joint point 54c Third Junction

Claims (10)

It has a pair of flanges whose cross section extends in the front-rear direction of the vehicle, a pair of legs whose cross section extends substantially in the vehicle width direction, and a main body portion located between the pair of legs, and is inside in the vehicle width direction. Or, it is a cross-sectional hat member for a vehicle that opens outward in the vehicle width direction.
The cross-section hat member for a vehicle is composed of an upper portion located on the upper side in the vertical direction of the vehicle and a lower portion located on the lower side in the vertical direction of the vehicle.
At least the main body portion has a plurality of fixing points at which the upper portion and the lower portion are connected.
A cross-sectional hat member for a vehicle, wherein the plurality of fixing points are arranged in a substantially U shape when viewed from the side in the vehicle width direction. In the cross-section hat member for a vehicle according to claim 1.
A cross-sectional hat member for a vehicle, wherein the plurality of fixing points are arranged so as to open upward in the vertical direction of the vehicle. In the vehicle cross-section hat member according to claim 1 or 2.
The main body portion is a cross-sectional hat member for a vehicle, characterized in that it has a constricted portion in the front-rear direction of the vehicle at a joint position between the upper portion and the lower portion. In the cross-section hat member for a vehicle according to claim 3.
The constricted portion has a bead portion provided on at least one of the pair of legs in the front-rear direction of the vehicle.
A cross-section hat member for a vehicle, wherein the bead portion extends along the longitudinal direction of the leg portion and has a fan-shaped cross section. The vehicle cross-section hat member according to any one of claims 1 to 4.
A pair of projecting portions projecting upward in the vehicle are provided at the upper end of the main body portion in the lower portion.
A cross-sectional hat member for a vehicle, characterized in that the fixing points located at the upper ends of the substantially U-shape are arranged on the pair of protrusions. The vehicle cross-section hat member according to any one of claims 1 to 5.
The cross-section hat member for a vehicle is a front pillower.
The vehicle cross-section hat member, wherein the plurality of fixing points are located below the upper end of the wheel when viewed from the side in the vehicle width direction. In the cross-section hat member for a vehicle according to claim 6.
The front pyrinner has a front pyrinner upper which is the upper part and a front pyrinna lower which is the lower part.
The side sill has a side sill inner on the inner side in the vehicle width direction and a side sill outer on the outer side in the vehicle width direction.
A side sill reinforcement is provided between the side sill inner and the side sill outer at the vehicle front end of the side sill.
A part of the side sill reinforcement is arranged between the front pyrinner upper and the front pyrinna lower.
A cross-section hat member for a vehicle, characterized in that a lower end portion of the front pyrinner upper is sandwiched between the front pyrinner lower and the side sill reinforcement. In the cross-section hat member for a vehicle according to claim 7.
The side sill reinforcements are coupled so as to close the opening of the hat-shaped cross section of the side sill innerr, and are coupled so as to close the opening of the hat-shaped cross section of the front pyrinner.
The side sill reinforcement has an extension portion that bends and extends inward in the vehicle width direction from the upper end in the vehicle vertical direction toward the bottom.
A cross-sectional hat member for a vehicle, wherein the extending end, which is the upper end of the extending portion, extends to the plurality of fixing points arranged in a substantially U shape. In the cross-section hat member for a vehicle according to claim 8.
The side sill reinforcement has a first joint point located in front of the vehicle with respect to the jack-up plate attached to the side sill, a second joint point located behind the jack-up plate with respect to the vehicle, and the jack-up. A cross-sectional hat member for a vehicle, characterized in that it is joined to the side sill inner at three points including a third joint point located above the plate. In the cross-section hat member for a vehicle according to claim 1.
A cross-section hat member for a vehicle, wherein the distance between the centers of the plurality of adjacent fixing points is 7 mm to 18 mm.

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