JP2022156042A - vehicle - Google Patents

Abstract

To provide a reinforcement member while reducing an influence of stress concentration on a connection part of the reinforcement member.SOLUTION: An electric vehicle 1 includes a pillar 44 extending in a height direction of the vehicle to support a roof 43, and a support frame 130 arranged behind a seat 7 on which an occupant sits to support the pillar 44. The support frame 130 includes an upper pipe part 131 extending in a vehicle width direction to support the pillar 44 and side pipe parts 133 having curved pipe parts 132 curved downward from outer edges in the vehicle width direction of the upper pipe part 131. The curved pipe parts 132 are mounted with reinforcement members 140 with connection parts 150. The connection parts 150 are provided on side surfaces 133C, 133D in the vehicle width direction of the side pipe part 133.SELECTED DRAWING: Figure 2

Description

The present invention relates to vehicles.

BACKGROUND ART Conventionally, a vehicle is known that includes a column that supports the rear portion of a roof member to which the upper end of a windshield is connected, and a support frame that supports the column (see, for example, Patent Document 1). The support frame of Patent Document 1 includes an upper pipe portion that extends in the vehicle width direction and supports the strut, and a side pipe portion that has a curved portion that curves downward from the outer end of the upper pipe portion in the vehicle width direction. A plurality of plate-shaped reinforcing plates extending in the front-rear direction are attached to the support frame. In Patent Document 1, since the reinforcing plate extends in the front-rear direction, it may affect the capacity of the cargo bed behind the seat. In addition, since a plurality of reinforcing plates are attached, the number of man-hours for attaching the reinforcing plates increases, and there is concern about an increase in manufacturing cost.
For example, as a solution to the above problem, increasing the outer diameter and wall thickness of the pipe portion that constitutes the support frame can be considered as a means for reinforcing the support frame. However, increasing the rigidity of the entire support frame poses problems of increased cost and weight.
On the other hand, in order to partially increase the rigidity of the support frame, it is conceivable to partially provide a reinforcing member for the support frame.

JP 2012-214109 A

However, when a reinforcing member is attached by welding to a portion of the support frame where stress concentrates, stress concentration may occur at the welded portion (connection portion) of the reinforcing member. As a countermeasure for this, it is conceivable to provide a plurality of reinforcing members and fix them more firmly, but there is a problem that the cost increases. Therefore, there is a demand for a technique for providing a reinforcing member while reducing the influence of stress concentration on the connecting portion of the reinforcing member.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a reinforcing member while reducing the influence of stress concentration on the connecting portion of the reinforcing member.

As means for solving the above problems, aspects of the present invention have the following configurations.
(1) A vehicle according to an aspect of the present invention includes a support column (44) extending in the height direction of the vehicle (1) and supporting a roof (43), and a seat (7) on which an occupant sits. , a support frame (130) for supporting the support column (44), the support frame (130) extending in the vehicle width direction, and a horizontal portion (131) for supporting the support column (44). and a column portion (133) having a curved portion (132) curved downward from the outer end of the horizontal portion (131) in the vehicle width direction, and the curved portion (132) includes a connection portion (150). A reinforcing member (140) is attached by means of the support member (140), and the connecting portion (150) is provided on the side surfaces (133C, 133D) of the column portion (133) in the vehicle width direction.
The side surface of the column in the vehicle width direction is an arc-shaped portion with a central angle of 90 degrees located on the inner side in the vehicle width direction on the outer periphery of the column in a cross-sectional view obtained by cutting the column along a plane perpendicular to the height direction of the vehicle. is the "vehicle width direction inner surface of the column", and the arc-shaped portion located on the vehicle width direction outer side with a central angle of 90 degrees is defined as the "vehicle width direction outer surface of the column". and a surface including the vehicle width direction outer surface.

(2) In the vehicle described in (1) above, the reinforcing member (140) may be provided so as to cover at least a portion of the longitudinal surfaces (133A, 133B) of the pillar (133). .
The front-rear direction surface of the column refers to the arc-shaped portion with a central angle of 90 degrees located on the front side of the outer periphery of the column in a cross-sectional view obtained by cutting the column along a plane perpendicular to the height direction of the vehicle. When the arc-shaped portion with a central angle of 90 degrees located on the rear side is defined as the "rear surface of the pillar", it means a surface including the front and rear surfaces of the pillar. That is, the front-rear direction surface of the column means a surface of the outer peripheral surface of the column other than the side surface in the vehicle width direction.

(3) In the vehicle described in (1) or (2) above, the reinforcing member (140) has an inner side extending along the column (133) on the inner side surface of the column (133) in the vehicle width direction. and an outer side portion (142) extending along the column portion (133) on the outer side surface of the column portion (133) in the vehicle width direction, the lower end of the inner side portion (141) ( 141b) and the lower end (142b) of the outer side portion (142) may be arranged at different positions in the height direction.

(4) In the vehicle described in (3) above, the lower end (141b) of the inner side portion (141) is arranged above the lower end (142b) of the outer side portion (142), and the connecting portion ( 150) is a welded portion (150), and the total welded length (L2) of the reinforcing member (140) to the vehicle width direction outer surface of the column (133) is equal to the vehicle width of the column (133). It may be greater than the total welding length (L1) of said reinforcing member (140) to the directional inner surface.

(5) In the vehicle described in (3) or (4) above, the reinforcing member (140) includes a lower end (141b) of the inner side portion (141) and a lower end (142b) of the outer side portion (142). The connection part (144) may be further provided, and the connection part (144) may have a curved shape when viewed from the front-rear direction.

(6) In the vehicle according to any one of (1) to (5) above, the reinforcing member (140) includes a first member (160) having first positioning portions (162A to 162D); a second member (170) having two positioning portions (172A-172D), wherein the first member (160) and the second member (170) are arranged in such a manner that the first member (160) and the second member The first positioning portions (162A to 162D) and the second positioning portions (172A to 172D) may contact each other when attaching (170) to the column portion (133) so as to enable positioning.

(7) In the vehicle according to any one of (1) to (6) above, the reinforcing member (140) uses a jig when assembling the reinforcing member (140) to the pillar (133). It has a jig hole (165, 175) into which it can be inserted, and the jig hole (165, 175) is provided at a position overlapping the center line (K1) of the column (133) when viewed from the front-rear direction. may be

According to the vehicle described above in (1) of the present invention, the support columns extend in the height direction of the vehicle and support the roof, and the support frame is arranged behind the seat on which the occupant sits and supports the support columns. , the support frame includes a horizontal portion that extends in the vehicle width direction and supports the support column, and a column portion that has a curved portion that curves downward from the outer end of the horizontal portion in the vehicle width direction. A reinforcing member is attached to the portion by a connection portion, and the connection portion is provided on the side surface of the column portion in the vehicle width direction.
As a result of intensive research, the inventors of the present invention have found that in a vehicle having a structure in which the roof of the vehicle is supported by a support frame via support columns (a so-called roofed vehicle), a load is applied in a direction that swings in the front-rear direction via the support columns. As a result, it was found that stress is concentrated on the pillars of the support frame due to this longitudinal load. In particular, research by the present inventor has revealed that higher stress is concentrated on the front-rear direction surface of the column than on the vehicle width direction side surface of the column.
According to this configuration, since the connecting portion is provided on the side surface of the column in the vehicle width direction, stress concentration on the connecting portion is reduced compared to the case where the connecting portion is provided on the front-rear direction surface of the column. The impact can be reduced. Therefore, the reinforcing member can be provided while reducing the effect of stress concentration on the connecting portion of the reinforcing member.

According to the vehicle described in the above (2) of the present invention, the reinforcing member is provided so as to cover at least a part of the front-rear direction surface of the column, thereby providing the following effects.
The reinforcing member can firmly reinforce the portion where stress is generated on the front-rear direction surface of the column.

According to the vehicle described above in (3) of the present invention, the reinforcing member includes an inner side portion extending along the column on the inner side surface in the vehicle width direction of the column portion and a column portion on the outer side surface in the vehicle width direction of the column portion. and the lower end of the inner side portion and the lower end of the outer side portion are arranged at different positions in the height direction, thereby providing the following effects.
For example, if the lower end of the inner side and the lower end of the outer side are arranged at the same position in the height direction, the stepped portion between the lower end of the inner side and the lower end of the outer side and the column is high. Since it becomes steep in the vertical direction, there is a possibility that stress concentration on the step portion increases.
On the other hand, according to this configuration, the lower end of the inner side portion and the lower end of the outer side portion are arranged at different positions in the height direction, so that the stepped portion becomes loose in the height direction. It is possible to suppress an increase in stress concentration on the step portion.

According to the vehicle described above in (4) of the present invention, the lower end of the inner side portion is arranged above the lower end of the outer side portion, the connection portion is the welded portion, and the column portion extends outward in the vehicle width direction. The total length of welding of the reinforcing member to the side surface is larger than the total length of welding of the reinforcing member to the inner side surface of the column in the vehicle width direction, thereby providing the following effects.
For example, if a higher stress is concentrated on the inner surface of the column in the vehicle width direction than on the outer surface of the column in the vehicle width direction, the lower end of the inner side portion is arranged below the lower end of the outer side portion. If the total length of welding of reinforcing members to the inner surface of the vehicle in the vehicle width direction is greater than the total length of welding of reinforcing members to the outer surface of the column in the vehicle width direction, stress concentration on the welded portion of the reinforcing member may increase. There is
On the other hand, according to this configuration, the lower end of the inner side portion is arranged higher than the lower end of the outer side portion, and the total length of welding of the reinforcing member to the outer surface of the column portion in the vehicle width direction is Even if a higher stress is concentrated on the inner surface of the column in the vehicle width direction than the outer surface of the column in the vehicle width direction, the welding of the reinforcing member is possible because it is longer than the total length of welding of the reinforcing member to the inner surface. It is possible to suppress an increase in stress concentration on the part. Therefore, from the viewpoint of reducing the influence of stress concentration on the connection portion of the reinforcing member, the inner side portion and the outer side portion are preferably arranged, and the reinforcing member for the vehicle width direction inner side surface and the vehicle width direction outer side surface of the column portion. can be suitably set.

According to the vehicle described in (5) above of the present invention, the reinforcing member further includes a connecting portion that connects the lower end of the inner side portion and the lower end of the outer side portion, and the connecting portion has a curved shape when viewed in the front-rear direction. By having the following effects.
For example, if the connecting portion has a linear shape when viewed from the front-rear direction, the stepped portion between the connecting portion and the column portion becomes steep in the height direction, so stress concentration on the stepped portion may increase. .
On the other hand, according to this configuration, since the connecting portion has a curved shape when viewed from the front-rear direction, the stepped portion becomes gentle in the height direction, so that the influence of stress concentration on the stepped portion can be more effectively reduced. can be reduced to

According to the vehicle described in (6) above of the present invention, the reinforcing member includes the first member having the first positioning portion and the second member having the second positioning portion, and the first member and the second The member can be positioned by bringing the first positioning portion and the second positioning portion into contact with each other when the first member and the second member are attached to the column portion, thereby providing the following effects.
Since the first positioning part and the second positioning part are in contact with each other, the first member and the second member can be attached to the pillar as an integrated structure, so the accuracy of attaching the first member and the second member to the pillar can increase
For example, if a reference line for positioning is provided on the column and the first positioning portion and the second positioning portion are aligned with each other, depending on the dimensional variation of the column (outer diameter, roundness, etc.) , the first positioning portion and the second positioning portion may not be aligned with each other.
On the other hand, according to this configuration, since the first positioning portion and the second positioning portion can be positioned by abutting each other, there is no need to provide a reference line on the column. The degree of freedom in attaching the member and the second member is improved.

According to the vehicle described above in (7) of the present invention, the reinforcing member has a jig hole into which a jig can be inserted when the reinforcing member is attached to the pillar, and the jig hole extends from the front-rear direction. By being provided at a position that overlaps with the center line of the pillar when viewed, the following effects are obtained.
For example, if the jig hole is provided at a position overlapping the outer edge of the column when viewed from the front-rear direction, there is concern about the influence of stress concentration on the outer edge of the column. In addition, since the jig inserted into the jig hole abuts against the outer edge of the column, it may be difficult to assemble the reinforcing member to the column.
On the other hand, according to this configuration, since the jig hole is provided at a position overlapping the center line of the column when viewed from the front-rear direction, it is possible to reduce the influence of stress concentration on the outer edge of the column. can. In addition, since the jig inserted into the jig hole comes into contact with the central portion of the column, it is possible to easily attach the reinforcing member to the column.

1 is a left side view of an electric vehicle according to an embodiment; FIG. It is the perspective view which looked at the state which removed the backrest part of embodiment from the left front. 1 is a front view of an embodiment support frame; FIG. FIG. 4 is a front view of the periphery including the left curved portion of the support frame of the embodiment; FIG. 5 is an explanatory view of the side surface of the side pipe portion in the vehicle width direction, including the VV cross section of FIG. 4; It is the perspective view which looked at the welding part of the reinforcement member of the left side of embodiment from the left front. It is the perspective view which looked at the welding part of the reinforcement member of the left side of embodiment from the right front. It is the perspective view which looked at the reinforcement member of the left side of embodiment from the left front. FIG. 4 is a perspective view of the support frame of the embodiment as seen from the left front, showing stress distribution according to analysis results.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, an electric vehicle will be described as an example of a vehicle. Hereinafter, the electric vehicle may be simply referred to as "vehicle". Note that directions such as front, rear, left, and right in the following description are the same as directions in the vehicle described below unless otherwise specified. An arrow FR indicating the front of the vehicle, an arrow LH indicating the left of the vehicle, an arrow UP indicating the upper side of the vehicle, and a left-right center line CL of the vehicle are shown at appropriate locations in the drawings used in the following description. The height direction (vertical direction) of the vehicle is a direction parallel to the vertical direction (the direction of gravity) when the vehicle is in an upright state.

<Whole vehicle>
As shown in FIG. 1, the vehicle of this embodiment is a three-wheeled vehicle in which one front wheel 2 as a steerable wheel is supported on a front vehicle body 3, and two rear wheels 4, which are driving wheels, are supported on a rear vehicle body 5. It is an electric vehicle 1 . The electric vehicle 1 is configured as a swing-type electric tricycle in which a front vehicle body 3 can swing left and right (rolling motion) with respect to a rear vehicle body 5 in which left and right rear wheels 4 are grounded. The electric vehicle 1 can move forward in the forward direction of the vehicle, and can also move backward (backward) in the rearward direction of the vehicle.

The front vehicle body 3 includes a bar handle (handle) 6 for steering the front wheels, and a seat 7 on which an occupant sits. A front vehicle body 3 has a straddle space 8 between a bar handle 6 and a seat 7, and a low floor 9 below the straddle space 8. - 特許庁The front vehicle body 3 and the rear vehicle body 5 are connected to each other via a rotating mechanism (rolling joint) 19 . Reference numeral C1 in FIG. 1 indicates a rotation axis of the rotation mechanism 19 extending in the vehicle front-rear direction.

The front vehicle body 3 has a front vehicle body frame 11 . The front vehicle body frame 11 includes a head pipe 12 tilted rearward with respect to the vertical direction, a single front frame 14 extending downward from the rear side of the head pipe 12 and then curving rearward, and a curved front frame 14 . A pair of left and right lower frames 15 branched left and right from both sides and extending rearward, a pair of left and right rear frames 16 extending obliquely rearward and upward from rear ends of the left and right lower frames 15, and left and right rear frames 16. A pair of left and right loading platform frames 17 extending curvedly rearward from the rear end portion is provided.

A front wheel suspension system (for example, a telescopic or bottom link front fork) 13 is steerably supported on the head pipe 12 . The front wheel 2 is supported by the lower end portion of the front wheel suspension device 13 . A stem pipe 13 a passing through the head pipe 12 is integrally provided at the upper portion of the front wheel suspension device 13 . A bar handle 6 is fixed to the stem pipe 13a so as to be rotatable integrally therewith.

The front vehicle body 3 is covered with a front vehicle body cover 23 . The front vehicle body cover 23 includes a front cover 24 and an inner cover 24a that cover the periphery of the head pipe 12 and the front frame 14 from the front and rear, respectively; and a loading platform cover 29 covering the periphery of the loading platform frame 17 behind the upper part of the rear body cover 28. - 特許庁A low floor 9 is composed of the floor board 25 and the left and right lower frames 15 and the like. A loading platform 31 is composed of the loading platform cover 29, the left and right loading platform frames 17, and the like.

The rear vehicle body 5 includes a rear vehicle body frame (not shown) independent of the front vehicle body frame 11 . A front portion of a turning mechanism 19 is connected to the front vehicle body frame 11 . A rear portion of the rotating mechanism 19 that is rotatable relative to the front portion is connected to the rear vehicle body frame.
The rear vehicle body 5 includes a power unit 20 arranged between the left and right rear wheels 4. - 特許庁The power unit 20 extends rear wheel axles 21 on both left and right sides to support the left and right rear wheels 4 . The rear vehicle body 5 is covered with a rear vehicle body cover 22 from above.

The power unit 20 includes an electric motor (prime mover) 35 that is a driving source of the electric vehicle 1 . A battery box 33 is provided below the seat 7 and within the rear body cover 28 . The battery box 33 houses a high-voltage battery that is a power source for the electric motor 35, a BMU (Battery Managing Unit) that manages charging and discharging of the high-voltage battery, a 12V low-voltage battery that is an auxiliary power source, and the like. (none shown).

The power unit 20 includes a unit case 37 that houses an electric motor 35 and the like. A PCU (Power Control Unit) 36 that controls the output of the electric motor 35 is arranged in the unit case 37 . The PCU 36 is a control unit integrally including, for example, a PDU (Power Driver Unit) and an ECU (Electric Control Unit). The PCU 36 is a control unit of the drive system of the electric vehicle 1, and drives and controls the electric motor 35 according to the accelerator operation after the start switch (not shown) is operated.

The electric vehicle 1 includes a roof unit 40 that is provided across the front and rear of the front vehicle body 3 to cover the front and top of the driver. The roof unit 40 includes a cowling 41, a windshield 42, a roof 43, and a pair of left and right pillars 44 (support columns). For example, the roof unit 40 can be retrofitted to the front vehicle body 3 as an option.

The cowling 41 includes a front cowl 46 that forms the front surface of the front vehicle body 3 and an inner cowl 47 attached to the rear portion of the front cowl 46. - 特許庁In the figure, reference numeral 51 denotes a pair of left and right rearview mirrors, and reference numeral 53 denotes wiper arms extending upward from the front cowl 46 toward the windshield 42, respectively. The inner cowl 47 is attached to the front surface of the front cover 24 of the front vehicle body 3 .

The roof 43 extends rearward from the upper end of the windshield 42 . The upper end portion of the windshield 42 and the front end portion of the roof 43 are curved in an arc so as to be continuous with each other in a side view. The left and right pillars 44 support the rear end of the roof 43 from below. The lower portions of the left and right pillars 44 are supported by a support frame 130 (see FIG. 2) through a backrest portion 100 rising between the seat 7 and the loading platform 31 .

A headlight support portion 91 projecting forward from the front cover 24 of the front vehicle body 3 is arranged below the cowling 41 . A headlight 92 is supported on the front portion of the headlight support portion 91 . A pair of left and right front blinkers 93 are supported on both left and right sides of the headlight support portion 91 . A wiper shaft 81 that serves as a swing shaft of the wiper arm 53 is arranged on the upper portion of the front cowl 46 near the center in the vehicle width direction.

As shown in FIG. 2, the left and right (one side and the other side in the vehicle width direction) pillars 44 are arranged one by one. The pillar 44 extends linearly along the vertical direction. A cross-sectional shape taken along a plane perpendicular to the direction in which the pillar 44 extends is annular. That is, the pillar 44 has a hollow cross section.

The pillar 44 is provided with a high mount stop lamp 60 (auxiliary brake light). The high mount stop lamp 60 extends across the left and right pillars 44 in the vehicle width direction. For example, the high mount stop lamp 60 can be attached to the left and right pillars 44 as an option. A connecting member 61 that connects the left and right pillars 44 is provided below the high mount stop lamp 60 .

As shown in FIG. 1, the backrest portion 100 is a portion on which the back of an occupant seated on the seat 7 can be rested. The backrest portion 100 includes a front plate 110 facing the back of an occupant seated on the seat 7 and a rear plate 120 arranged behind the front plate 110 . The front plate 110 and the rear plate 120 are detachably attached to each other. For example, the rear plate 120 is detachably fixed to the front plate 110 with a plurality of bolts (not shown).

<Support frame>
As shown in FIG. 2, the support frame 130 is formed in an arch shape that curves upward. The support frame 130 is formed like a pipe having a hollow cross section. The support frame 130 is arranged inside the backrest 100 (see FIG. 1). The support frame 130 includes an upper pipe portion 131 (horizontal portion) that extends in the vehicle width direction and supports the pillar 44, and curved pipe portions 132 (curved portions) that curve downward from both ends of the upper pipe portion 131 in the vehicle width direction. and left and right side pipe portions 133 (pillar portions).

The side pipe portion 133 has a vertical pipe portion 134 extending downward from the lower end of the curved pipe portion 132 . The curved pipe portion 132 connects the outer end of the upper pipe portion 131 in the vehicle width direction and the upper end of the vertical pipe portion 134 . The curved pipe portion 132 is formed in an arc shape that curves outward and upward in the vehicle width direction when viewed from the front in FIG. The lower ends of the left and right vertical pipe portions 134 are connected to the rear end portions of the left and right rear frames 16 (see FIG. 1).

As shown in FIG. 2, the lower ends of the left and right pillars 44 are connected to both ends of the upper pipe portion 131 in the vehicle width direction. A pair of left and right support brackets 180 are provided at both ends of the upper pipe portion 131 in the vehicle width direction. The support bracket 180 includes a front support plate 181 that supports the front side of the lower end of the pillar 44 and a rear support plate 182 that supports the rear side of the lower end of the pillar 44 .

The lower end of the front support plate 181 is welded to the upper pipe portion 131 . The front support plate 181 is fixed to nuts (not shown) (for example, weld nuts) provided on the rear support plate 182 with a plurality of (for example, four bolts in this embodiment) bolts 183 . A central portion of the front support plate 181 in the vehicle width direction is welded to the upper pipe portion 131 via a front connection plate 185 .

<Reinforcing member>
As shown in FIG. 3, a reinforcing member 140 is attached to the side pipe portion 133 by a welding portion 150 (connecting portion, see FIG. 4). The reinforcing member 140 is provided on each of the left and right side pipe portions 133 . The left and right reinforcing members 140 are formed symmetrically with the vehicle left-right center line CL as an axis of symmetry. As shown in FIG. 4 , the welded portion 150 is a portion where the reinforcing member 140 is welded to the side pipe portion 133 .

FIG. 5 is a diagram including a cross section of the side pipe portion 133 taken along a plane perpendicular to the height direction of the vehicle. 5, the arc-shaped portion 133A with the central angle A1 of 90 degrees located on the front side on the outer periphery of the annular side pipe portion 133 is referred to as the "front surface 133A of the side pipe portion 133". 5, the arc-shaped portion 133B with the central angle A2 of 90 degrees located on the rear side on the outer periphery of the annular side pipe portion 133 is referred to as the "rear surface 133B of the side pipe portion 133". 5, the arc-shaped portion 133C having a central angle A3 of 90 degrees located on the inner side in the vehicle width direction on the outer circumference of the annular side pipe portion 133 is referred to as the "vehicle width direction inner side surface 133C of the side pipe portion 133". and 5, the arc-shaped portion 133D having a central angle A4 of 90 degrees located on the outside in the vehicle width direction on the outer circumference of the annular side pipe portion 133 is referred to as the "outside surface 133D in the vehicle width direction of the side pipe portion 133". and Hereinafter, the surfaces including the front surface 133A and the rear surface 133B of the side pipe portion 133 are referred to as "the front-rear surfaces 133A and 133B of the side pipe portion 133", and the inner surface 133C and the outer surface 133C of the side pipe portion 133 The surfaces including the side surface 133D are referred to as "vehicle width direction side surfaces 133C and 133D of the side pipe portion 133". As shown in FIG. 4 , the welded portions 150 are provided on the vehicle width direction side surfaces 133</b>C and 133</b>D of the side pipe portion 133 .

As shown in FIG. 6, the reinforcing member 140 is provided so as to cover at least a portion of the front-rear surfaces 133A and 133B of the side pipe portion 133. As shown in FIG. In this embodiment, the reinforcing member 140 is provided so as to cover the front-rear surfaces 133A and 133B of the curved pipe portion 132 of the side pipe portion 133 .

As shown in FIG. 4 , the reinforcing member 140 includes an inner side portion 141 extending along the side pipe portion 133 on the inner side surface 133C of the side pipe portion 133 in the vehicle width direction, and an outer side portion 141 extending along the side pipe portion 133 in the vehicle width direction. and an outer side portion 142 extending along the side pipe portion 133 on the side surface 133D. In the present embodiment, the inner side portion 141 is a portion that extends in an arc shape along the inner edge of the curved pipe portion 132 in the vehicle width direction when viewed from the front. The outer side portion 142 is a portion that extends in an arc shape along the vehicle width direction outer edge of the curved pipe portion 132 in a front view.

The upper end 141a of the inner side portion 141 and the upper end 142a of the outer side portion 142 are arranged at different positions in the height direction of the vehicle. In this embodiment, the upper end 141 a of the inner side portion 141 is arranged below the upper end 142 a of the outer side portion 142 . The upper end 141a of the inner side portion 141 is arranged inward in the vehicle width direction from the upper end 142a of the outer side portion 142 .

A lower end 141b of the inner side portion 141 and a lower end 142b of the outer side portion 142 are arranged at different positions in the height direction of the vehicle. In this embodiment, the lower end 141b of the inner side portion 141 is arranged above the lower end 142b of the outer side portion 142 . In the front view of FIG. 4, the length of the arcuate portion of the inner side portion 141 is smaller than the length of the arcuate portion of the outer side portion 142 .

The reinforcing member 140 includes an upper connecting portion 143 connecting an upper end 141a of the inner side portion 141 and an upper end 142a of the outer side portion 142, and a lower connecting portion connecting a lower end 141b of the inner side portion 141 and a lower end 142b of the outer side portion 142. and a portion 144 (connecting portion). The upper connecting portion 143 and the lower connecting portion 144 each have a curved shape when viewed from the front-rear direction. In this embodiment, the upper connecting portion 143 has an arc shape that curves outward and downward in the vehicle width direction when viewed from the front. The lower connecting portion 144 has an arcuate shape that curves outward and upward in the vehicle width direction when viewed from the front.

As shown in FIG. 8, the reinforcing member 140 includes a first member 160 having first positioning portions 162A to 162D (first positioning portions 162C and 162D are shown in FIG. 8) and second positioning portions 172A to 172D ( In FIG. 8, a second member 170 having second positioning portions 172C and 172D are shown. When the first member 160 and the second member 170 are attached to the side pipe portion 133, the first positioning portions 162A to 162D and the second positioning portions 172A to 172D are in contact with each other. (See FIGS. 6 and 7).

As shown in FIG. 6 , the first member 160 is provided so as to cover the front surface of the curved pipe portion 132 of the side pipe portion 133 . The first member 160 includes a front cover portion 161 covering the front surface of the curved pipe portion 132 and extending along the curved pipe portion 132, and a plurality of (for example, four in this embodiment) extending from the upper and lower ends of the front cover portion 161. and first positioning portions 162A to 162D (first positioning portions 162C and 162D are shown in FIG. 6).

As shown in FIG. 7, the four first positioning portions 162A to 162D are portions extending from the inner upper end portion of the front cover portion 161 in the vehicle width direction along the outer periphery of the curved pipe portion 132 while curving inward in the vehicle width direction. 162A (hereinafter also referred to as “first inner upper extending portion 162A”) extends from the inner lower end portion of the front cover portion 161 in the vehicle width direction along the outer circumference of the curved pipe portion 132 while curving inward in the vehicle width direction. A portion 162B (hereinafter also referred to as a “first inner downward extending portion 162B”) extends along the outer circumference of the curved pipe portion 132 from the outer upper end portion of the front cover portion 161 in the vehicle width direction, as shown in FIG. Along the outer circumference of the curved pipe portion 132 from the portion 162C (hereinafter also referred to as “first outer upper extending portion 162C”) extending while curving to the width direction outer side and the lower end portion of the front cover portion 161 on the outer side in the vehicle width direction. and a portion 162D that extends while curving outward in the vehicle width direction (hereinafter also referred to as a “first outer downward extension portion 162D”). Between the first outer upper extending portion 162C and the first outer lower extending portion 162D, there is an outer intermediate portion of the front cover portion 161 on the outer side in the vehicle width direction along the outer circumference of the curved pipe portion 132. A bulging front-side outer bulging portion 163 is provided.

The second member 170 is provided so as to cover the rear surface of the curved pipe portion 132 of the side pipe portion 133 . The second member 170 is provided at a position overlapping the first member 160 when viewed from the front-rear direction. The second member 170 includes a rear surface covering portion 171 that covers the rear surface of the curved pipe portion 132 and extends along the curved pipe portion 132, and a plurality of (for example, four in this embodiment) extending from the upper and lower ends of the rear surface covering portion 171. and second positioning portions 172A to 172D (second positioning portions 172C and 172D are shown in FIG. 6).

As shown in FIG. 7, the four second positioning portions 172A to 172D are portions extending from the inner upper end portion of the rear cover portion 171 in the vehicle width direction along the outer periphery of the curved pipe portion 132 while curving inward in the vehicle width direction. 172A (hereinafter also referred to as “second inner upper extending portion 172A”) extends from the inner lower end portion of the rear cover portion 171 in the vehicle width direction along the outer circumference of the curved pipe portion 132 while curving inward in the vehicle width direction. A portion 172B (hereinafter also referred to as a “second inner downward extending portion 172B”) extends along the outer circumference of the curved pipe portion 132 from the upper end portion of the rear cover portion 171 on the outside in the vehicle width direction, as shown in FIG. A portion 172C extending while curving outward in the width direction (hereinafter also referred to as a “second outer upper extension portion 172C”) and a lower end portion of the rear cover portion 171 on the outer side in the vehicle width direction along the outer circumference of the curved pipe portion 132. and a portion 172D that extends while curving outward in the vehicle width direction (hereinafter also referred to as a “second outer downward extension portion 172D”). Between the second outer upper extending portion 172C and the second outer lower extending portion 172D, from the vehicle width direction outer intermediate portion of the rear cover portion 171 to the vehicle width direction outer side along the outer periphery of the curved pipe portion 132. A bulging rear-side outward bulging portion 173 is provided.

As shown in FIG. 7, the rear end of the first inner upper extending portion 162A and the front end of the second inner upper extending portion 172A are attached to the side pipe portion 133 when the first member 160 and the second member 170 are attached to the side pipe portion 133. As shown in FIG. They are made contactable with each other. The rear end of the first inner downward extension portion 162B and the front end of the second inner downward extension portion 172B are capable of coming into contact with each other when the first member 160 and the second member 170 are attached to the side pipe portion 133. there is

As shown in FIG. 6, the rear end of the first outer upper extending portion 162C and the front end of the second outer upper extending portion 172C are attached to the side pipe portion 133 when the first member 160 and the second member 170 are attached to the side pipe portion 133. They are made contactable with each other. The rear end of the first outer downward extension portion 162D and the front end of the second outer downward extension portion 172D can contact each other when the first member 160 and the second member 170 are attached to the side pipe portion 133. there is

In this embodiment, the first member 160 and the second member 170 have four first positioning portions 162A to 162D and four second positioning portions 162A to 162D when attaching the first member 160 and the second member 170 to the side pipe portion 133. Positioning is enabled by the positioning portions 172A to 172D coming into contact with each other. The rear end of the front outer bulging portion 163 and the front end of the rear outer bulging portion 173 are separated from each other without coming into contact when the first member 160 and the second member 170 are attached to the side pipe portion 133. .

For example, the first member 160 and the second member 170 are arranged in consideration of the dimensional variation (the size of the outer diameter, the roundness, etc.) of the side pipe portion 133. It is formed larger than the curved pipe portion 132 so that all four first positioning portions 162A to 162D and all four second positioning portions 172A to 172D contact each other when attached to the side pipe portion 133. preferably. For example, the minimum inner peripheral length of the first member 160 and the second member 170 in a state in which the positioning portions are in contact with each other (for example, the minimum length in consideration of the dimensional variation in the circumferential length of the inner peripheral surface of the reinforcing member 140) value) is preferably larger than the maximum outer peripheral length of the curved pipe portion 132 (for example, the maximum value considering the dimensional variation of the outer peripheral surface of the side pipe portion 133 in the circumferential direction).

As shown in FIG. 8 , the reinforcing member 140 has jig holes 165 and 175 into which jigs (for example, pins) can be inserted when the reinforcing member 140 is attached to the side pipe portion 133 . The jig holes 165 and 175 are provided at positions overlapping the center line K1 (see FIG. 4) of the side pipe portion 133 when viewed from the front-rear direction. In the present embodiment, the jig holes 165 and 175 (the jig hole 165 is shown in FIG. 4) are provided at positions overlapping the center line K1 in the vicinity of the center in the vertical direction of the curved pipe portion 132 when viewed from the front in FIG. there is

As shown in FIG. 8, jig holes 165 and 175 are provided in the front cover portion 161 and the rear cover portion 171, respectively. The jig holes 165 and 175 are formed in a circular shape when viewed from the front. One jig hole 165 is provided near the center of the front cover portion 161 when viewed from the front. The other jig hole 175 is provided near the center of the rear cover portion 171 as viewed from the rear.

As shown in FIG. 4 , the welded portion 150 is provided on each of the vehicle width direction inner surface 133</b>C and the vehicle width direction outer surface of the side pipe portion 133 . Hereinafter, the welded portion 150 provided on the vehicle width direction inner surface 133C of the side pipe portion 133 will be referred to as the "inner welded portion 151", and the welded portion 150 provided on the vehicle width direction outer surface 133D of the side pipe portion 133 will be referred to as the " outer welded portion 152”.

The inner welded portion 151 is provided between the upper and lower positioning portions 162A and 162B of the portion along which the inner side portion 141 of the reinforcing member 140 extends in a front view with respect to the vehicle width direction inner side surface 133C of the side pipe portion 133. there is As shown in FIG. 7, the inner welded portion 151 (illustrated by dot hatching in FIG. 7) extends from the inner edge of the front cover portion 161 in the vehicle width direction, the inner edge of the rear cover portion 171 in the vehicle width direction, and the first inner side. provided in a portion surrounded by the lower edge of the portion 162A, the upper edge of the first inner lower extension portion 162B, the lower edge of the second inner upper extension portion 172A, and the upper edge of the second inner lower extension portion 172B. ing.

As shown in FIG. 4 , the outer welded portion 152 includes upper and lower positioning portions 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C, 162C; 162D. As shown in FIG. 6, the outer welded portion 152 (illustrated by dot hatching in FIG. 6) extends from the outer edge of the front cover portion 161 in the vehicle width direction, the outer edge of the rear cover portion 171 in the vehicle width direction, and the first outer edge. provided in a portion surrounded by the lower edge of the portion 162C, the upper edge of the first outer lower extension portion 162D, the lower edge of the second outer upper extension portion 172C, and the upper edge of the second outer lower extension portion 172D. ing.

In addition, the outer welded portion 152 is formed at the rear end edge of the front outer bulging portion 163 in the portion along which the outer side portion 142 of the reinforcing member 140 extends along the vehicle width direction outer surface 133D of the side pipe portion 133 in a front view. It is not provided in the portion between the front edge of the rear outwardly bulging portion 173 . That is, the outer welded portion 152 is cut at the central portion of the portion along which the outer side portion 142 of the reinforcing member 140 extends when viewed from the front. For example, it is preferable to shorten the welding length of the reinforcing member 140 to the side pipe portion 133 within a range in which the welding strength of the reinforcing member 140 to the side pipe portion 133 can be secured.

In this embodiment, the total weld length L2 of the reinforcement member 140 to the vehicle width direction outer surface 133D of the side pipe portion 133 is the total weld length L2 of the reinforcement member 140 to the vehicle width direction inner surface 133C of the side pipe portion 133. greater than L1 (L2>L1).

Here, the total weld length L2 of the reinforcement member 140 to the vehicle width direction outer surface 133D of the side pipe portion 133 is the portion of the outer weld portion 152 along the outer side portion 142 of the reinforcement member 140 in the front view of FIG. (A portion excluding the portion between the rear edge of the front outwardly bulging portion 163 and the front edge of the rearward outwardly bulging portion 173 shown in FIG. 6). That is, the total welding length L2 of the reinforcing member 140 with respect to the vehicle width direction outer surface 133D of the side pipe portion 133 is determined by each outward bulging portion of the portion along the outer side portion 142 of the reinforcing member 140 in the front view of FIG. It corresponds to the length obtained by adding the welding length L2a on the upper side and the welding length L2b on the lower side.
The total weld length L1 of the reinforcement member 140 to the vehicle width direction inner surface 133C of the side pipe portion 133 is the length of the portion of the inner weld portion 151 along the inner side portion 141 of the reinforcement member 140 in the front view of FIG. corresponds to

<Effect>
As described above, the electric vehicle 1 of the above embodiment includes the pillars 44 that extend in the height direction of the vehicle and support the roof 43, and the support that supports the pillars 44 that are arranged behind the seat 7 on which the occupant sits. The support frame 130 has an upper pipe portion 131 that extends in the vehicle width direction and supports the pillar 44, and a curved pipe portion 132 that curves downward from the outer end of the upper pipe portion 131 in the vehicle width direction. A reinforcing member 140 is attached to the curved pipe portion 132 by a connection portion 150, and the connection portions 150 are provided on side surfaces 133C and 133D of the side pipe portion 133 in the vehicle width direction. there is
As a result of intensive research, the present inventors have found that in a vehicle having a structure in which the roof 43 of the vehicle is supported by a support frame 130 via the pillars 44 (a so-called roofed vehicle), the pillars 44 can swing in the front-rear direction. A load is applied, and as a result, stress is concentrated on the side pipe portions 133 of the support frame 130 due to this longitudinal load. As shown in FIG. 9, the present inventors found that higher stress concentrates on the front-rear surfaces 133A and 133B of the side pipe portion 133 than on the side surfaces 133C and 133D of the side pipe portion 133 in the vehicle width direction. has been clarified by the study of In addition, FIG. 9 shows the stress distribution in shading, and relatively dark portions (black portions) indicate portions where high stress concentrates.
According to this configuration, the connection portions 150 are provided on the vehicle width direction side surfaces 133C and 133D of the side pipe portion 133, so that the connection portions 150 are provided on the front-rear direction surfaces 133A and 133B of the side pipe portion 133. Influence of stress concentration on the connection portion 150 can be reduced as compared with the case of . Therefore, the reinforcement member 140 can be provided while reducing the influence of stress concentration on the connecting portion 150 of the reinforcement member 140 .

In the above-described embodiment, the reinforcing member 140 is provided so as to cover the front-rear surfaces 133A and 133B of the side pipe portion 133, thereby providing the following effects.
The reinforcing member 140 can firmly reinforce the portions where stress is generated in the front-rear direction surfaces 133A and 133B of the side pipe portion 133 .

In the above-described embodiment, the reinforcing member 140 includes the inner side portion 141 extending along the side pipe portion 133 on the vehicle width direction inner side surface 133C of the side pipe portion 133, and the vehicle width direction outer side surface 133D of the side pipe portion 133. and the lower end 141b of the inner side portion 141 and the lower end 142b of the outer side portion 142 are arranged at different positions in the height direction. , has the following effects.
For example, if the lower end 141b of the inner side portion 141 and the lower end 142b of the outer side portion 142 are arranged at the same position in the height direction, the lower end 141b of the inner side portion 141 and the lower end 142b of the outer side portion 142 Since the step portion with the side pipe portion 133 is steep in the height direction, stress concentration on the step portion may increase.
In contrast, according to this configuration, the lower end 141b of the inner side portion 141 and the lower end 142b of the outer side portion 142 are arranged at different positions in the height direction, so that the stepped portion is gentle in the height direction. Therefore, it is possible to suppress an increase in stress concentration on the step portion.

In the above embodiment, the lower end 141b of the inner side portion 141 is arranged above the lower end 142b of the outer side portion 142, the connection portion 150 is the welded portion 150, and the outer surface of the side pipe portion 133 in the vehicle width direction. The total welding length L2 of the reinforcing member 140 to the 133D is greater than the total welding length L1 of the reinforcing member 140 to the inner side surface 133C of the side pipe portion 133 (L2>L1). Play.
For example, if a stress higher than the vehicle width direction outer surface 133D of the side pipe portion 133 is concentrated on the vehicle width direction inner surface 133C of the side pipe portion 133, the lower end 141b of the inner side portion 141 The total welding length L1 of the reinforcing member 140 to the vehicle width direction inner side surface 133C of the side pipe portion 133 is the total welding length L1 of the reinforcing member 140 to the vehicle width direction outer side surface 133D of the side pipe portion 133. If the total weld length is greater than L2 (L1>L2), stress concentration on welded portion 150 of reinforcing member 140 may increase.
In contrast, according to this configuration, the lower end 141b of the inner side portion 141 is arranged above the lower end 142b of the outer side portion 142, and the welding length of the reinforcement member 140 to the vehicle width direction outer side surface 133D of the side pipe portion 133 is Since the total length L2 is greater than the total length L1 of the welding length of the reinforcing member 140 to the inner side surface 133C of the side pipe portion 133 (L2>L1), the inner side surface 133C of the side pipe portion 133 is welded. Even if stress higher than the vehicle width direction outer surface 133</b>D of the side pipe portion 133 is concentrated, it is possible to suppress an increase in stress concentration on the welded portion 150 of the reinforcement member 140 . Therefore, from the viewpoint of reducing the influence of stress concentration on the connection portion 150 of the reinforcing member 140, the inner side portion 141 and the outer side portion 142 are preferably arranged, and the vehicle width direction inner side surface 133C of the side pipe portion 133 and The total welding length L1, L2 of the reinforcing member 140 with respect to the vehicle width direction outer surface 133D can be set appropriately.

In the above embodiment, the reinforcing member 140 includes the lower connecting portion 144 that connects the lower end 141b of the inner side portion 141 and the lower end 142b of the outer side portion 142, and the lower connecting portion 144 has a curved shape when viewed from the front-rear direction. By having the following effects.
For example, if the lower connecting portion 144 has a linear shape when viewed from the front-rear direction, the stepped portion between the lower connecting portion 144 and the side pipe portion 133 becomes steep in the height direction. Stress concentrations can increase.
On the other hand, according to the present configuration, since the lower connecting portion 144 has a curved shape when viewed from the front-rear direction, the stepped portion becomes loose in the height direction, so that the influence of stress concentration on the stepped portion is reduced. can be reduced more effectively.

In the above embodiment, the reinforcing member 140 includes the first member 160 having the first positioning portions 162A-162D and the second member 170 having the second positioning portions 172A-172D. The member 170 can be positioned by contacting the first positioning portions 162A to 162D and the second positioning portions 172A to 172D when attaching the first member 160 and the second member 170 to the side pipe portion 133. Therefore, the following effects are obtained.
Since the first positioning portions 162A to 162D and the second positioning portions 172A to 172D are in contact with each other, the first member 160 and the second member 170 can be attached to the side pipe portion 133 as an integral structure. The attachment accuracy of the first member 160 and the second member 170 to the pipe portion 133 can be improved.
For example, if a reference line for positioning is provided in the side pipe portion 133 and the first positioning portions 162A to 162D and the second positioning portions 172A to 172D are aligned with each other, the dimensional variation of the side pipe portion 133 (external diameter, roundness, etc.), the first positioning portions 162A-162D and the second positioning portions 172A-172D may not be aligned with each other.
On the other hand, according to this configuration, the first positioning portions 162A to 162D and the second positioning portions 172A to 172D can be positioned by contacting each other, so that the side pipe portion 133 does not have a reference line. Therefore, the degree of freedom in attaching the first member 160 and the second member 170 to the side pipe portion 133 is improved.

In the above-described embodiment, the reinforcing member 140 has jig holes 165 and 175 into which jigs can be inserted when the reinforcing member 140 is attached to the side pipe portion 133. The jig holes 165 and 175 extend in the front-rear direction. By being provided at a position overlapping with the center line K1 of the side pipe portion 133 when viewed from the side, the following effects are obtained.
For example, if the jig holes 165 and 175 are provided at positions overlapping the outer edge of the side pipe portion 133 when viewed in the front-rear direction, there is concern about the influence of stress concentration on the outer edge of the side pipe portion 133 . be. Also, since the jigs inserted into the jig holes 165 and 175 come into contact with the outer edge of the side pipe portion 133 , it may become difficult to assemble the reinforcing member 140 to the side pipe portion 133 .
In contrast, according to this configuration, the jig holes 165 and 175 are provided at positions overlapping the center line K1 of the side pipe portion 133 when viewed from the front-rear direction, so that the outer edge portion of the side pipe portion 133 is can reduce the effects of stress concentration. In addition, since the jigs inserted into the jig holes 165 and 175 come into contact with the central portion of the side pipe portion 133 , the reinforcing member 140 can be easily assembled to the side pipe portion 133 .

<Modification>
In addition, in the above-described embodiment, an example in which the reinforcing member is provided so as to cover the front-rear direction surface of the side pipe portion has been described, but the present invention is not limited to this. For example, the reinforcing member may be provided so as to cover either the front surface or the rear surface of the side pipe portion. For example, the reinforcing member may be provided so as to cover at least part of the front-rear direction surface of the side pipe portion. For example, the installation mode of the reinforcing member can be changed according to the required specifications.

In the above-described embodiment, the reinforcing member includes the inner side portion extending along the side pipe portion on the vehicle width direction inner surface of the side pipe portion and the side pipe portion extending along the side pipe portion on the vehicle width direction outer surface of the side pipe portion. , and the lower end of the inner side portion and the lower end of the outer side portion are arranged at different positions in the height direction, but the invention is not limited to this. For example, the lower end of the inner side portion and the lower end of the outer side portion may be arranged at the same position in the height direction.

In the above-described embodiment, an example in which the upper end of the inner side portion is arranged below the upper end of the outer side portion has been described, but the present invention is not limited to this. For example, the upper end of the inner side portion may be arranged above the upper end of the outer side portion. For example, the arrangement of the upper end of the inner side and the upper end of the outer side can be changed according to the required specifications.

In the above embodiment, an example in which the lower end of the inner side portion is arranged above the lower end of the outer side portion has been described, but the present invention is not limited to this. For example, the lower end of the inner side portion may be arranged below the lower end of the outer side portion. For example, the arrangement of the bottom edge of the inner side portion and the bottom edge of the outer side portion can be changed according to the required specifications.

In the above-described embodiment, an example in which the connecting portion is the welded portion has been described, but the present invention is not limited to this. For example, the connecting portion may be a fastening portion using a fastening member such as a bolt. For example, the aspect of the connection can be changed according to the required specifications.

In the above embodiment, the total length of welding of the reinforcing member to the outer surface of the side pipe portion in the vehicle width direction is greater than the total length of welding of the reinforcing member to the inner surface of the side pipe portion in the vehicle width direction. Illustrated, but not limited to. For example, the total length of welding of the reinforcing member to the vehicle width direction outer surface of the side pipe portion may be smaller than the total length of welding of the reinforcing member to the vehicle width direction inner surface of the side pipe portion. For example, the weld length of each part of the reinforcing member can be changed according to the required specifications.

In the above embodiment, the reinforcing member includes the upper connecting portion that connects the upper end of the inner side portion and the upper end of the outer side portion, and the upper connecting portion has a curved shape when viewed from the front-rear direction. , but not limited to this. For example, the upper connecting portion may have a linear shape when viewed from the front-rear direction. For example, the shape of the upper connecting portion can be changed according to the required specifications.

In the above embodiment, the reinforcing member includes the lower connecting portion that connects the lower end of the inner side portion and the lower end of the outer side portion, and the lower connecting portion has a curved shape when viewed from the front-rear direction. However, it is not limited to this. For example, the lower connecting portion may have a linear shape when viewed from the front-rear direction. For example, the shape of the lower joint can be changed according to the required specifications.

In the above embodiment, the reinforcing member includes a first member having a first positioning portion and a second member having a second positioning portion, wherein the first member and the second member are the first member and the second member. is attached to the side pipe portion, the first positioning portion and the second positioning portion are brought into contact with each other to enable positioning, but the present invention is not limited to this. For example, a reference line for positioning may be provided on the side pipe portion, and the first positioning portion and the second positioning portion may be aligned with each other. For example, the reinforcing member does not have to include the first member having the first positioning portion and the second member having the second positioning portion. For example, the manner in which the reinforcement member is positioned with respect to the side pipe portion can be changed according to the required specifications.

In the above embodiment, an example in which four first positioning portions and four second positioning portions are provided has been described, but the present invention is not limited to this. For example, the number of the first positioning parts and the number of the second positioning parts may be three or less, or may be five or more. For example, the number of positioning units to be installed can be changed according to required specifications.

In the above embodiment, the reinforcing member has a jig hole into which a jig can be inserted when the reinforcing member is attached to the side pipe portion, and the jig hole is the center of the side pipe portion when viewed from the front-rear direction. Although the example provided in the position which overlaps with a line was given and demonstrated, it is not restricted to this. For example, the jig hole may be provided at a position overlapping the outer edge of the side pipe portion when viewed from the front-rear direction. For example, the reinforcing member may not have jig holes. For example, the arrangement of jig holes can be changed according to required specifications.

In the above embodiment, a rocking electric tricycle (electric vehicle) has been described as an example of a vehicle, but the present invention is not limited to this. For example, the vehicle may be a variety of two-wheeled, three-wheeled and four-wheeled vehicles. For example, the vehicle is not limited to an electric vehicle, and may be an engine vehicle or a hybrid vehicle. For example, the vehicle may be a motorcycle with an engine mounted on the vehicle body side, or may be a unit swing type motorcycle. For example, aspects of the vehicle can be changed according to required specifications.

In the above embodiment, an example in which the handle is a left and right integrated bar handle has been described, but the present invention is not limited to this. For example, the handle may be a separate left and right handle, and may not be a bar type. For example, the aspect of the handle can be changed according to the required specifications.

The present invention is not limited to the above-described embodiments. For example, the vehicle includes all vehicles in which the driver straddles the vehicle body, and only motorcycles (including motorized bicycles and scooter-type vehicles). However, it also includes vehicles with three wheels (including vehicles with two front wheels and one rear wheel, as well as vehicles with one front wheel and two rear wheels). Moreover, the present invention is applicable not only to motorcycles but also to four-wheeled vehicles such as automobiles.
The configuration in the above embodiment is an example of the present invention, and various modifications, such as replacing the constituent elements of the embodiment with known constituent elements, are possible without departing from the gist of the present invention.

1 Electric vehicle (vehicle)
7 seat 43 roof 44 pillar (support column)
130 support frame 131 upper pipe section (horizontal section)
132 curved pipe portion (curved portion)
133 side pipe part (pillar part)
133A, 133B front-rear direction surface of the side pipe portion (column portion) 133C, 133D vehicle width direction side surface of the side pipe portion (column portion) 140 reinforcing member 141 inner side portion 141b lower end of the inner side portion 142 outer side portion 142b outer side Lower end of side 144 Lower joint (joint)
150 weld (connection)
151 inner weld (connection)
152 outer weld (connection)
160 First member 162A to 162D First positioning portion 165 Jig hole 170 Second member 172A to 172D Second positioning portion 175 Jig hole K1 Center line L1 Reinforcing the inner surface of the side pipe portion (pillar portion) in the vehicle width direction Total welded length of members L2 Total welded length of reinforcing members to the outer surface of the side pipe (column) in the vehicle width direction

Claims (7)

a support column (44) extending in the height direction of the vehicle (1) and supporting a roof (43);
a support frame (130) arranged behind a seat (7) on which an occupant sits and supporting the support column (44);
The support frame (130) comprises:
a horizontal portion (131) extending in the vehicle width direction and supporting the support column (44);
a column portion (133) having a curved portion (132) that curves downward from the outer end of the transverse portion (131) in the vehicle width direction;
A reinforcing member (140) is attached to the curved portion (132) by a connecting portion (150),
The vehicle, wherein the connecting portion (150) is provided on the vehicle width direction side surfaces (133C, 133D) of the column portion (133). The vehicle according to claim 1, wherein the reinforcing member (140) is provided so as to cover at least a portion of the longitudinal surfaces (133A, 133B) of the column (133). The reinforcing member (140) is
an inner side portion (141) extending along the column portion (133) on the vehicle width direction inner surface of the column portion (133);
an outer side portion (142) extending along the column portion (133) on the vehicle width direction outer surface of the column portion (133);
A lower end (141b) of the inner side portion (141) and a lower end (142b) of the outer side portion (142) are arranged at different positions in the height direction. vehicle described in The lower end (141b) of the inner side portion (141) is arranged above the lower end (142b) of the outer side portion (142),
The connecting portion (150) is a welding portion (150),
The total welding length (L2) of the reinforcing member (140) to the vehicle width direction outer surface of the column (133) is the welding length (L2) of the reinforcement member (140) to the vehicle width direction inner surface of the column (133). Vehicle according to claim 3, characterized in that it is greater than the total length (L1). The reinforcing member (140) further comprises a connecting portion (144) connecting the lower end (141b) of the inner side portion (141) and the lower end (142b) of the outer side portion (142),
The vehicle according to claim 3 or 4, wherein the connecting portion (144) has a curved shape when viewed from the front-rear direction. The reinforcing member (140) is
a first member (160) having first positioning portions (162A-162D);
a second member (170) having second positioning portions (172A to 172D);
The first member (160) and the second member (170) are attached to the first positioning portion (162A) when the first member (160) and the second member (170) are attached to the column (133). 162D) and the second positioning portions (172A-172D) contact each other to enable positioning. The reinforcing member (140) has jig holes (165, 175) into which jigs can be inserted when the reinforcing member (140) is attached to the column (133),
7. The jig hole (165, 175) according to any one of claims 1 to 6, wherein the jig hole (165, 175) is provided at a position overlapping a center line (K1) of the column (133) when viewed from the front-rear direction. Vehicles described in paragraph.

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