WO2018174035A1 - Tilting vehicle - Google Patents

Tilting vehicle Download PDF

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Publication number
WO2018174035A1
WO2018174035A1 PCT/JP2018/010919 JP2018010919W WO2018174035A1 WO 2018174035 A1 WO2018174035 A1 WO 2018174035A1 JP 2018010919 W JP2018010919 W JP 2018010919W WO 2018174035 A1 WO2018174035 A1 WO 2018174035A1
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WO
WIPO (PCT)
Prior art keywords
monocoque
vehicle
wall
protruding portion
projecting
Prior art date
Application number
PCT/JP2018/010919
Other languages
French (fr)
Japanese (ja)
Inventor
健 半田
亮 上野
Original Assignee
ヤマハ発動機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ヤマハ発動機株式会社 filed Critical ヤマハ発動機株式会社
Priority to JP2019507675A priority Critical patent/JPWO2018174035A1/en
Priority to TW107109613A priority patent/TWI657957B/en
Publication of WO2018174035A1 publication Critical patent/WO2018174035A1/en

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  • the present invention relates to an inclined vehicle that turns in an inclined posture.
  • a motorcycle frame structure disclosed in Patent Document 1 is known as an inclined vehicle that turns in an inclined posture.
  • the frame structure disclosed in Patent Document 1 has an upper frame and a lower frame that are integrally formed with a fiber reinforced resin using carbon fibers.
  • the upper frame and the lower frame are combined so that the upper head pipe provided on the upper frame and the lower head pipe provided on the lower frame are coupled.
  • a lightweight and high-strength frame can be obtained by configuring the motorcycle frame with a fiber reinforced resin using carbon fibers.
  • An object of the present invention is to obtain a configuration that can further reduce the weight of an inclined vehicle that turns in an inclined posture.
  • Patent Document 1 a vehicle having a frame made of fiber reinforced resin using carbon fibers instead of a metal frame is known in an inclined vehicle that turns in an inclined posture.
  • the present inventors diligently studied a configuration for reducing the weight of the vehicle body further than this configuration. As a result, the present inventors considered that the vehicle body can be further reduced in weight by adopting a monocoque structure as used in airplanes.
  • an inclined vehicle that turns in an inclined posture has a characteristic of falling in the left-right direction when the vehicle is stopped. For this reason, when the tilted vehicle falls in the left-right direction in a stationary state, an impact is likely to be applied to the vehicle body of the tilted vehicle.
  • the structure of the resin and fiber may change inside the portion made of fiber reinforced resin.
  • the vehicle body constituted by the fiber reinforced resin preferably has a frame structure rather than a monocoque structure.
  • the inclined vehicle that turns in the inclined posture as described above has a characteristic of falling in the left-right direction when the vehicle is stopped, it is possible to identify the portion that receives the impact. Therefore, in the inclined vehicle, a part that receives an impact when the vehicle falls over in the left-right direction in a stationary state can be predicted at the time of vehicle design, and the resin and the fiber are caused by the impact inside the part constituted by the fiber reinforced resin. It is possible to control in advance that the structure changes.
  • the present inventors have predicted a portion of a tilted vehicle that turns in a tilted posture and that receives a shock when the tilted vehicle falls in the left-right direction when the tilted vehicle is stopped. It was found that the structure of the resin and the fibers can be prevented from changing inside the portion constituted by the fiber reinforced resin when the vehicle body is impacted by making the vehicle body into a monocoque structure except for the above.
  • An inclined vehicle is an inclined vehicle that turns in an inclined posture.
  • the tilted vehicle includes a vehicle body that tilts to the left when turning left and leans to the right when turning right.
  • the vehicle body has a monocoque structure provided with a wall portion made of a material containing fiber reinforced resin, and projects to the left of the inclined vehicle from the monocoque portion that constitutes at least a part of the vehicle body.
  • a left projecting portion that is integrally formed with the monocoque portion so that the outer surface is continuous with the outer surface of the monocoque portion, and has a lower strength than the strength of the monocoque portion, and the inclined vehicle from the monocoque portion.
  • a right protruding portion that is formed integrally with the monocoque portion so that the outer surface is continuous with the outer surface of the monocoque portion, and has a lower strength than the strength of the monocoque portion.
  • At least a part of the vehicle body of the inclined vehicle is constituted by a monocoque portion that is a monocoque structure provided with a wall portion made of a material containing carbon fiber reinforced resin.
  • An inclined vehicle that turns in an inclined posture has a characteristic of falling in the left-right direction when the vehicle is stopped. Therefore, when the inclined vehicle falls in the left-right direction in a stationary state by providing the inclined vehicle with a left protruding portion and a right protruding portion protruding in the left-right direction from the monocoque portion, the left protruding portion or the right protruding portion Is shocked. The strength of the left protruding portion and the right protruding portion is lower than the strength of the monocoque portion. As a result, when the inclined vehicle falls in the left-right direction in a stationary state, the left projecting portion or the right projecting portion is deformed before the resin and fiber structure changes inside the monocoque wall. .
  • the impact received by the monocoque portion can be absorbed by the left protruding portion or the right protruding portion. Therefore, it is possible to prevent the resin and fiber structure from changing inside the wall portion of the monocoque portion when the inclined vehicle falls in the left-right direction in a stopped state.
  • the inclined vehicle of the present invention preferably includes the following configuration.
  • Each of the left protruding portion and the right protruding portion includes an outer wall that constitutes a part of the outer surface of the vehicle body, and a space portion that is located inward of the outer wall.
  • the inclined vehicle of the present invention preferably includes the following configuration.
  • Each of the left protrusion and the right protrusion includes an outer wall that constitutes a part of the outer surface of the vehicle body, and an impact absorbing member that is positioned inward of the outer wall.
  • the impact can be more effectively absorbed by the impact absorbing member in the left protruding portion or the right protruding portion. Therefore, it can prevent more reliably that the structure of resin and a fiber changes inside the wall part of a monocoque part.
  • the inclined vehicle of the present invention preferably includes the following configuration.
  • the monocoque portion has a wall thickness at a connection portion with the left protruding portion of the wall portion that is larger than a thickness of the outer wall at the left protruding portion, and the wall portion is connected to the right protruding portion.
  • the thickness of the wall part in a part is larger than the thickness of the outer wall in the right protrusion part.
  • the strength at the connecting portion between the monocoque portion and the left protruding portion is higher than the strength at the left protruding portion
  • the strength at the connecting portion between the monocoque portion and the right protruding portion is the strength of the right protruding portion. Higher than. Therefore, when the inclined vehicle falls in the left-right direction in a stopped state and the left projecting portion or the right projecting portion is deformed, the structure of the resin and fiber changes inside the wall portion of the monocoque portion. It can be prevented more reliably.
  • the inclined vehicle of the present invention preferably includes the following configuration.
  • the wall portion of the monocoque portion includes a vertical wall portion extending in the vertical direction of the inclined vehicle, and the left protruding portion and the right protruding portion are respectively in the vertical direction of the monocoque portion in the left-right direction of the inclined vehicle. Projecting outward from the inclined vehicle from the wall.
  • the rigidity of the monocoque part can be improved, and even if the inclined vehicle turning in an inclined posture falls in the left-right direction in a stationary state and the left projecting part or the right projecting part is deformed, the influence on the monocoque part is exerted. Can be suppressed as much as possible.
  • the inclined vehicle of the present invention preferably includes the following configuration.
  • the left projecting portion and the right projecting portion are provided such that the center of the left projecting portion and the right projecting portion is located behind the center of the monocoque portion in the front-rear direction of the inclined vehicle.
  • the left protruding portion and the right protruding portion so that the center of the left protruding portion and the right protruding portion is located behind the center of the monocoque portion in the longitudinal direction of the inclined vehicle, the inclined vehicle When falling in the direction, the left protrusion or the right protrusion can absorb the shock more reliably.
  • the application target of the present invention is not limited to motorcycles.
  • the present invention may be applied to an inclined vehicle other than a motorcycle.
  • a tilted vehicle is a vehicle having a body frame that tilts to the right of the vehicle when turning right and leans to the left of the vehicle when turning left.
  • FIG. 1 is a side view showing an overall configuration of a vehicle according to Embodiment 1 of the present invention.
  • FIG. 2 is a perspective view showing a schematic configuration of a rear structure having a monocoque portion.
  • FIG. 3 is a plan view of the rear structure as viewed from above the vehicle. 4 is a cross-sectional view taken along line IV-IV in FIG.
  • FIG. 5 is a diagram schematically illustrating how the structure body of the rear structure contacts the ground when the vehicle falls in the left-right direction while the vehicle is stopped.
  • FIG. 6 is a view corresponding to FIG. 4 illustrating a schematic configuration of a structure body in a vehicle rear structure according to the second embodiment.
  • the arrow F in the figure indicates the forward direction of the vehicle.
  • An arrow U in the figure indicates the upward direction of the vehicle.
  • An arrow R in the figure indicates the right direction of the vehicle.
  • An arrow L in the figure indicates the left direction of the vehicle.
  • the front-rear and left-right directions mean front-rear and left-right directions as viewed from the occupant driving the vehicle 1.
  • FIG. 1 is a side view showing an outline of the overall configuration of a vehicle 1 (an inclined vehicle) according to the first embodiment.
  • the vehicle 1 is a motorcycle, for example, and includes a vehicle body 2, a front wheel 3, and a rear wheel 4.
  • the vehicle 1 is a vehicle that turns in an inclined posture. That is, the vehicle 1 includes a vehicle body 2 that inclines to the left when turning leftward and leans to the right when turning rightward in the left-right direction of the vehicle 1.
  • the vehicle body 2 supports components such as the vehicle body cover 5, the handle 6, the seat 7, and the power unit 8.
  • the vehicle body 2 includes a frame 10 and a rear structure 20. That is, the vehicle body 2 is a structure that includes the frame 10 and the rear structure 20 and supports each component of the vehicle 1.
  • the frame 10 has a head pipe 11 and a main frame 12.
  • the head pipe 11 is located at the front of the vehicle 1 and rotatably supports a steering shaft 6a connected to the handle 6.
  • the main frame 12 is connected to the head pipe 11 so as to extend from the head pipe 11 toward the rear of the vehicle.
  • a power unit 8 and the like are supported on the main frame 12.
  • the frame 10 is covered with a vehicle body cover 5.
  • the frame 10 may be made of a metal material, or may be made of a material containing a fiber reinforced resin reinforced with fibers such as carbon.
  • the rear structure 20 has a so-called stress skin structure in which the load of the components supported by the rear structure 20 and the force input to the rear structure 20 are borne by the wall 21a (see FIG. 4).
  • the rear structure 20 constitutes the outer surface of the vehicle body 2. That is, the rear structure 20 has a function as a structural member that bears the load and force and a function as a cover member that constitutes the outer surface of the vehicle body 2.
  • FIG. 2 is a perspective view showing a schematic configuration of the rear structure 20.
  • FIG. 3 is a plan view of the rear structure 20 as viewed from above the vehicle 1.
  • the rear structure 20 functions as a rear frame of the vehicle 1 and also functions as a rear cover of the vehicle 1.
  • the rear structure 20 is made of a material including a carbon fiber reinforced resin in which a resin (for example, epoxy resin, vinyl ester, phenol resin, polyamide, polypropylene, polyphenylene sulfide, or the like) is reinforced with carbon fibers.
  • the carbon fibers may be knitted or may not be knitted.
  • the carbon fiber may be a continuous fiber or a discontinuous fiber having a predetermined length (for example, 1 mm) or more. A continuous fiber and a discontinuous fiber may be used as the carbon fiber.
  • the rear structure 20 has a long shape in the front-rear direction of the vehicle. As shown in FIG. 3, in the rear structure 20, the dimension in the left-right direction of the vehicle 1 is larger than the dimension in the left-right direction at the front part at a portion rearward of the center in the front-rear direction of the vehicle 1. That is, the rear structure 20 has a part of the rear portion of the rear structure 20 that protrudes most in the left-right direction with respect to the center of the vehicle 1 in the front-rear direction when the vehicle 1 is viewed from above. The portion of the rear structure 20 that protrudes most in the left direction of the vehicle 1 is a left protruding portion 31 described later. The portion of the rear structure 20 that protrudes most in the right direction of the vehicle 1 is a right protruding portion 32 described later.
  • the rear structure 20 includes a structure body 21 and a pair of connection portions 22.
  • FIG. 4 shows a cross section when the structure body 21 is cut in the left-right direction of the vehicle 1 (hereinafter simply referred to as a left-right cross section of the vehicle 1).
  • the structure body 21 has a closed cross section surrounded by a wall portion 21 a when viewed in a cross section in the left-right direction of the vehicle 1. That is, the structure main body 21 has the space part 20a inside.
  • a notch portion 23 for arranging the seat 7 is provided in the front portion of the structure body 21.
  • the pair of connection portions 22 extends from the structure body 21 toward the lower side of the vehicle 1.
  • the pair of connection portions 22 are provided in the lower part of the structure body 21 so as to face each other.
  • the pair of connection portions 22 are formed integrally with the structure body 21.
  • the pair of connection portions 22 are connected to the frame 10.
  • the structure body 21 includes a monocoque portion 25, a left protruding portion 31, and a right protruding portion 32.
  • the monocoque portion 25 is located at the center of the structure body 21 in the left-right direction of the vehicle 1.
  • the left protruding portion 31 is provided on the left side of the monocoque portion 25 in the left-right direction of the vehicle 1.
  • the right protruding portion 32 is provided to the right of the monocoque portion 25 in the left-right direction of the vehicle 1. That is, the left protruding portion 31 and the right protruding portion 32 protrude outward from the monocoque portion 25 in the left-right direction of the vehicle 1.
  • the structure body 21 has the left protruding portion 31 on the left side of the monocoque portion 25 and the right protruding portion 32 on the right side of the monocock portion 25.
  • the left protrusion 31 and the right protrusion 32 protrude most in the left-right direction in the rear structure 20.
  • the left protrusion 31 and the right protrusion 32 are arranged at the rear part of the structure body 21 in the front-rear direction of the vehicle 1.
  • the left projecting portion 31 and the right projecting portion 32 are configured so that the center Y of the left projecting portion 31 and the right projecting portion 32 is located behind the center X of the monocoque portion 25 in the longitudinal direction of the vehicle 1. Is provided.
  • the wall portion 21a includes wall portions 21b and 21c constituting the monocoque portion 25, and wall portions 21d and 21e (outer walls) constituting the left protruding portion 31 and the right protruding portion 32, respectively.
  • the wall portion 21 b is a wall portion that constitutes the upper portion of the monocoque portion 25.
  • the wall portion 21 c is a wall portion constituting the lower part of the monocoque portion 25.
  • the walls 21 b and 21 c extend in the left-right direction of the vehicle 1.
  • the wall portions 21d and 21e are U-shaped having a bent portion when viewed in the cross section of the vehicle 1 in the left-right direction.
  • the wall 21d constituting the left protruding portion 31 has a bent portion located on the left side.
  • the wall portion 21e constituting the right protruding portion 32 has a bent portion located on the right side.
  • Each of the wall portions 21b, 21c, 21d, and 21e is made of a material containing a carbon fiber reinforced resin.
  • the wall portions 21b, 21c, 21d, and 21e are integrally formed. That is, the monocoque portion 25, the left protruding portion 31, and the right protruding portion 32 are integrally formed so that the outer surfaces are continuous.
  • a space portion 25a constituting a part of the space portion 20a is formed inside the monocoque portion 25.
  • Space portions 31a and 32a constituting a part of the space portion 20a are formed inside the left protrusion portion 31 and the right protrusion portion 32, respectively.
  • the left protruding portion 31 and the right protruding portion 32 are smaller in thickness in the vertical direction of the vehicle 1 than the monocoque portion 25.
  • the wall portion 21 d that forms the lower portion of the left protruding portion 31 in the wall portion 21 d is positioned above the wall portion 21 c that forms the lower portion of the monocoque portion 25.
  • the wall 21e constituting the lower part of the right protruding part 32 is located above the wall 21c constituting the lower part of the monocoque part 25.
  • the structure main body 21 has a shape in which both end portions are positioned above the center portion in the left-right direction of the vehicle 1.
  • the wall portion 21b is provided with thick portions 27 that are thicker than the other portions at both left and right ends of the monocoque portion 25.
  • the thick part 27 is provided in the wall part 21b which comprises the upper part of the monocoque part 25.
  • the wall portion 21c is provided with thick portions 28 that are thicker than the other portions at both left and right ends of the monocoque portion 25.
  • the thick part 28 is provided in the wall part 21c which comprises the lower part of the monocoque part 25.
  • the thick portions 27 and 28 located at the left end portion of the monocoque portion 25 are provided at positions adjacent to the left protruding portion 31 in the wall portions 21b and 21c constituting the monocoque portion 25, respectively. That is, in the monocoque portion 25, the thickness of the wall portions 21 b and 21 c at the connection portion with the left protruding portion 31 is larger than the thickness of the wall portion 21 d constituting the left protruding portion 31.
  • the thick portions 27 and 28 located at the right end portion of the monocoque portion 25 are provided at positions adjacent to the right protruding portion 32 in the wall portions 21b and 21c constituting the monocoque portion 25, respectively. That is, in the monocoque portion 25, the thickness of the wall portions 21 b and 21 c at the connection portion with the right protruding portion 32 is larger than the thickness of the wall portion 21 e constituting the right protruding portion 32.
  • the left outward portion of the thick portions 27 and 28 is the left protruding portion 31, and the right outward portion of the thick portions 27 and 28 is the right protruding portion 32.
  • the thick part 28 constitutes a step part 21f formed between the wall part 21c constituting the lower part of the monocoque part 25 and the wall part 21d constituting the left protruding part 31, and the lower part of the monocoque part 25.
  • the step portion 21g formed between the wall portion 21c and the wall portion 21e constituting the right protruding portion 32 is provided.
  • the thick portions 27 and 28 protrude from the walls 21 b and 21 c constituting the monocoque portion 25 toward the inside of the monocoque portion 25.
  • the thick portions 27 and 28 reinforce the monocoque portion 25.
  • the thick portions 27 and 28 also constitute a part of the structure of the vehicle body 2.
  • the thick portions 27 and 28 that are close to the left protruding portion 31 are the thicknesses of the portions that are close to the left protruding portion 31 when viewed in the left-right cross section of the vehicle 1. However, it gradually decreases toward the left outward. Further, of the thick portions 27 and 28, the thick portions 27 and 28 close to the right protruding portion 32 have a thickness of a portion close to the right protruding portion 32 when viewed in the left-right cross section of the vehicle 1. It is getting smaller gradually.
  • the monocoque portion 25 has higher strength than the left projecting portion 31 and the right projecting portion 32. That is, the left protruding portion 31 and the right protruding portion 32 have lower strength than the monocoque portion 25.
  • the monocoque portion 25 has a strength capable of constituting a part of the vehicle body 2 by having the thick portions 27 and 28 as described above on the wall portions 21b and 21c. That is, the monocoque portion 25 has a strength that can constitute a part of the vehicle body 2 regardless of the strength of the left protruding portion 31 and the right protruding portion 32.
  • FIG. 5 is a diagram schematically showing a state in which the structure body 21 of the rear structure 20 contacts the ground G when the vehicle 1 falls to the left while the vehicle 1 is stopped.
  • the left protruding portion 31 or the right protruding portion 32 that protrudes from the monocoque portion 25 in the left-right direction comes into contact with the ground G.
  • the left protruding portion 31 is in contact with the ground G.
  • the left protruding portion 31 and the right protruding portion 32 have lower strength than the monocoque portion 25. Therefore, when the vehicle 1 falls in the left-right direction with the vehicle stopped, the left protruding portion 31 or the right protruding portion 32 is deformed before the structure of the resin and fiber is changed inside the monocoque portion 25. Space portions 31a and 32a are formed inside the left protruding portion 31 and the right protruding portion 32, respectively. Therefore, the left protrusion 31 and the right protrusion 32 are easily deformed by an impact when the vehicle 1 falls in the left-right direction. In the monocoque portion 25, thick portions 27 and 28 are provided on the wall portions 21b and 21c.
  • the difference in strength between the monocoque portion 25 provided with the thick portions 27 and 28 and the left protruding portion 31 and the right protruding portion 32 is large.
  • the left protruding portion 31 and the right protruding portion 32 are more easily deformed by an impact when the vehicle 1 falls.
  • that the structure of the said resin and fiber changes means that resin peels with respect to a fiber, or resin breaks.
  • a thick portion 28 is provided in a stepped portion 21f formed between the wall portion 21c constituting the lower portion of the monocoque portion 25 and the wall portion 21d constituting the left protruding portion 31.
  • a thick portion 28 is provided at a step portion 21g formed between a wall portion 21c constituting the lower portion of the monocoque portion 25 and a wall portion 21e constituting the right protruding portion 32.
  • the impact received by the rear structure 20 can be absorbed by the left protruding portion 31 or the right protruding portion 32. Accordingly, it is possible to prevent the resin and fiber structures from changing inside the monocoque portion 25 of the rear structure 20 when the vehicle 1 falls in the left-right direction while the vehicle 1 is stopped as described above. Therefore, it is possible to prevent a reduction in the strength of the vehicle body 2 that affects the performance of the vehicle 1.
  • the vehicle 1 is an inclined vehicle that turns in an inclined posture.
  • the vehicle 1 includes a vehicle body 2 that tilts left when turning left and leans right when turning right.
  • the vehicle body 2 has a monocoque structure provided with a wall portion 21a made of a material containing a carbon fiber reinforced resin, and includes a monocoque portion 25 constituting at least a part of the vehicle body 2, and a leftward direction of the vehicle 1 from the monocoque portion 25
  • a left protruding portion 31 that is integrally formed with the monocoque portion 25 and has a lower strength than that of the monocoque portion 25, a rightward protrusion of the vehicle 1 from the monocoque portion 25, and the monocoque portion 25,
  • the right protrusion 32 is formed integrally and has a lower strength than that of the monocoque portion 25.
  • the rigidity of the vehicle 1 is maintained while maintaining rigidity. In comparison, the weight of the vehicle body 2 can be reduced.
  • the vehicle 1 turning in an inclined posture has a characteristic of falling in the left-right direction of the vehicle 1 in a stopped state. Therefore, by providing the left protruding portion 31 and the right protruding portion 32 that protrude from the monocoque portion 25 in the left-right direction of the vehicle 1, when the vehicle 1 falls in the left-right direction in a stopped state, the left protruding portion 31 or the right protruding portion 32 receives an impact. Moreover, the strength of the left protruding portion 31 and the right protruding portion 32 is lower than the strength of the monocoque portion 25. As a result, when the vehicle 1 falls in the left-right direction while the vehicle 1 is stopped, the left projecting portion 31 or the right projecting portion 32 is easily deformed by receiving an impact. Therefore, the left projecting portion 31 or the right projecting portion 32 applies the impact. Can be absorbed. Therefore, it is possible to prevent the resin and fiber structure from changing inside the monocoque portion 25 when the vehicle 1 falls in the left-right direction.
  • the left protruding portion 31 and the right protruding portion 32 include a wall portion 21d and 21e that constitute a part of the outer surface of the vehicle body 2, and a space portion 31a and a space portion 32a that are located inward of the wall portions 21d and 21e, respectively.
  • the thickness of the wall portions 21 b and 21 c at the connecting portion between the left protruding portion 31 and the right protruding portion 32 of the wall portions 21 b and 21 c is the same as the wall portions 21 d and 21 e in the left protruding portion 31 and the right protruding portion 32. It is larger than the thickness.
  • the strength of the connecting portion between the monocoque portion 25 and the left protruding portion 31 and the right protruding portion 32 is higher than the strength of the left protruding portion 31 and the right protruding portion 32. Therefore, when the vehicle 1 falls in the left-right direction in a stopped state and the left projecting portion 31 or the right projecting portion 32 is deformed, the structure of the resin and fiber is more reliably changed inside the monocoque portion 25. Can be prevented.
  • the left projecting portion 31 and the right projecting portion 32 are provided so that the centers of the left projecting portion 31 and the right projecting portion 32 are located behind the center of the monocoque portion 25 in the longitudinal direction of the vehicle 1.
  • the left projecting portion 31 and the right projecting portion 32 are arranged such that the center of the left projecting portion 31 and the right projecting portion 32 is located behind the center of the monocoque portion 25 in the longitudinal direction of the vehicle 1.
  • FIG. 6 is a cross-sectional view of the schematic configuration of the structure main body 121 in the vehicle rear structure 120 according to the second embodiment as seen in a cross section in the left-right direction of the vehicle.
  • the structure of the rear structure 120 in the second embodiment is that instead of providing a thick portion in the monocoque portion, the inner space portion 125b of the monocoque portion 125, the inner space portion 131b of the left protruding portion 131, and the right protruding portion. It differs from the configuration of the rear structure 20 in the first embodiment in that the inner space 132b of the 132 is partitioned.
  • the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only portions different from those in the first embodiment are described.
  • the structure main body 121 of the rear structure 120 includes a monocoque part 125, a left protruding part 131, and a right protruding part 132.
  • the monocoque part 125 is disposed at the center of the structure main body 121 in the left-right direction of the vehicle.
  • the left protruding portion 131 is disposed on the left side with respect to the monocoque portion 125 in the left-right direction of the vehicle.
  • the right protrusion 132 is disposed to the right of the monocoque portion 125 in the left-right direction of the vehicle.
  • the monocoque portion 125, the left protruding portion 131, and the right protruding portion 132 are integrally formed.
  • the monocoque portion 125, the left protruding portion 131, and the right protruding portion 132 are made of carbon fiber reinforced resin in which a resin (for example, epoxy resin, vinyl ester, phenol resin, polyamide, polypropylene, polyphenylene sulfide, etc.) is reinforced with carbon fiber, for example. It is comprised by the material to contain.
  • the carbon fibers may be knitted or may not be knitted.
  • the carbon fiber may be a continuous fiber or a discontinuous fiber having a predetermined length (for example, 1 mm) or more. A continuous fiber and a discontinuous fiber may be used as the carbon fiber.
  • the monocoque part 125 is constituted by a wall part 125a.
  • a space part 125b is formed inward of the wall part 125a.
  • the monocoque portion 125 has a closed cross section formed by a wall portion 125a when viewed in a cross section in the left-right direction of the vehicle.
  • the wall part 125a which comprises the monocoque part 125 has the vertical wall part 125c extended in the up-down direction of a vehicle, and the horizontal wall part 125d extended in the left-right direction of a vehicle. Therefore, the monocoque part 125 has a strength capable of constituting a part of the vehicle body.
  • the left protruding portion 131 and the right protruding portion 132 are configured by wall portions 131a and 132a (outer walls) that are thinner than the wall portion 125a constituting the monocoque portion 125.
  • the walls 131a and 132a are formed in a U shape when viewed in a cross section in the left-right direction of the vehicle.
  • the wall portions 131a and 132a are integrated with the vertical wall portion 125c so as to form space portions 131b and 132b, respectively, between the wall portion 125a and the vertical wall portion 125c located on both sides in the left-right direction of the vehicle. Is formed.
  • the left protruding portion 131 and the right protruding portion 132 protrude outward from the vertical wall portion 125c of the monocoque portion 125 in the left-right direction of the vehicle.
  • spaces 131b and 132b are formed inward of the walls 131a and 132a.
  • Foams 133 and 134 are arranged in the space portions 131b and 132b.
  • the walls 131a and 132a are formed so as to surround the foams 133 and 134.
  • the foam 133 easily deforms.
  • the foam 134 easily deforms. Accordingly, when the impact is applied to the left protrusion 131 or the right protrusion 132, the impact can be absorbed more effectively.
  • the foams 133 and 134 are also used as a mold for forming the left protrusion 131 and the right protrusion 132 when the rear structure 120 is integrally formed.
  • the foam material for forming the protrusion 132 is covered with a plurality of carbon fiber sheets (members formed in a sheet shape with carbon fibers). In a state where they are arranged in a pressable outer mold, pressure is applied by the outer mold while injecting a liquid resin into the outer mold, whereby the shape of the rear structure 120 as shown in FIG. 4 is obtained. can get.
  • the foam material is foamed by the heat of the resin injected into the outer mold and becomes foams 133 and 134.
  • the left protruding portion 131 and the right protruding portion 132 have foams 133 and 134 inside the wall portions 131a and 132a.
  • the foam 133 in the left protruding portion 131 or the foam 134 in the right protruding portion 132 more effectively absorbs the impact. Can do. Therefore, it can prevent more reliably that the structure of resin and a fiber changes within the monocoque part 125.
  • the monocoque part 125 has a closed cross section formed by the wall part 125a when viewed in the cross section in the left-right direction of the vehicle, the monocoque part 125 has a strength capable of constituting a part of the vehicle body. Therefore, even when an impact is applied to the left projecting portion 131 or the right projecting portion 132 by the above-described vehicle overturning in the left-right direction, and the structure of the resin and fiber changes inside the impacted portion, the monocoque portion 125 Thus, the predetermined strength and performance of the vehicle body can be ensured.
  • the thickness of the wall part 125a in the connection part with the left protrusion part 131 among the wall parts 125a is larger than the thickness of the wall part 131a in the left protrusion part 131.
  • the thickness of the wall portion 125 a in the connection portion with the right protruding portion 132 in the wall portion 125 a is larger than the thickness of the wall portion 132 a in the right protruding portion 132.
  • the strength of the connecting portion between the monocoque portion 125 and the left protruding portion 131 is higher than the strength of the wall portion 131a of the left protruding portion 131.
  • the strength at the connection portion between the monocoque portion 125 and the right protruding portion 132 is higher than the strength of the wall portion 132 a of the right protruding portion 132. Therefore, even when the vehicle falls in the left-right direction and the left protruding portion 131 or the right protruding portion 132 is deformed, it is possible to more reliably prevent the resin and fiber structure from changing inside the monocoque portion 125.
  • the wall portion 125a of the monocoque portion 125 includes a vertical wall portion 125c extending in the vertical direction of the vehicle.
  • the left protruding portion 131 and the right protruding portion 132 protrude outward from the vertical wall portion 125c of the monocoque portion 125 in the left-right direction of the vehicle.
  • the rigidity of the monocoque part 125 can be improved, and even when the vehicle turning in an inclined posture falls to the left and right in a stationary state and the left projecting part 131 or the right projecting part 132 is broken, the influence on the monocoque part 125 is exerted. Can be suppressed as much as possible.
  • the vehicle body 2 includes the frame 10 and the rear structures 20 and 120.
  • the vehicle body may be configured only by the monocoque portion.
  • the rear frame is configured by the monocoque structure rear structures 20 and 120.
  • other parts of the vehicle body may be configured with a monocoque structure.
  • the main frame may be configured using a front structure having a monocoque structure similar to the rear structure.
  • the rear structures 20 and 120 are made of a material including a carbon fiber reinforced resin in which the resin is reinforced with carbon fibers.
  • the rear structure may be made of a material containing a fiber reinforced resin in which the resin is reinforced by fibers other than carbon fibers (for example, aramid fibers, polyethylene fibers, glass fibers, etc.).
  • the rear structures 20 and 120 are made of a resin such as an epoxy resin, a vinyl ester, a phenol resin, polyamide, polypropylene, or polyphenylene sulfide.
  • the resin may be other types of resins as long as the resin can be reinforced with fibers.
  • the left protrusions 31 and 131 and the right protrusions 32 and 132 are made of the same material containing carbon fiber reinforced resin as the monocoque parts 25 and 125.
  • the fiber direction of the carbon fiber may be different from the fiber direction of the carbon fiber in the monocoque part so that the left projecting part and the right projecting part have lower strength than the monocoque part.
  • the left protrusion and the right protrusion may not contain fibers.
  • the carbon fiber reinforced resin in each of the above embodiments is reinforced with carbon fibers bonded together by a resin in a state where a plurality of carbon fiber reinforced resins are laminated in the thickness direction.
  • the carbon fiber reinforced resin may be composed of a composite material in which a carbon fiber reinforced resin layer reinforced with carbon fibers and a foamed resin layer containing a foamed synthetic resin are laminated in the thickness direction.
  • This composite material has a pair of carbon fiber reinforced resin layers, and the foamed resin layer is disposed between the carbon fiber reinforced resin layers.
  • the wall portions 21d, 21e, 131a, and 132a constituting the left protruding portions 31 and 131 and the right protruding portions 32 and 132 have a uniform thickness.
  • the wall thickness of the left protrusion and the right protrusion is partially adjusted so that the left protrusion or the right protrusion can easily absorb the impact when the vehicle falls in the left-right direction when the vehicle is stopped. It may be thinned.
  • the left protruding portion and the right protruding portion may be provided with a weak portion such as a notch or a hole.
  • the wall portions 21b and 21c constituting the monocoque portion 25 are provided with the thick portions 27 and 28 at positions adjacent to the left protruding portion 31 and the right protruding portion 32, respectively.
  • the strength of the monocoque part can be improved, and if the left projecting part or the right projecting part can be easily deformed by an impact when the vehicle falls in the left-right direction when the vehicle is stopped, In at least one of them, the thick part may be provided in a position other than the position adjacent to the left protrusion and the right protrusion.
  • the thick portions 27 and 28 are provided on the wall portions 21b and 21c constituting the monocoque portion 25 so as to protrude inward of the monocoque portion 25.
  • the thick portion may be provided so as to protrude outward.
  • the inner space portion 25a of the monocoque portion 25 is hollow, but an impact absorbing member such as foam may be disposed in the space portion.
  • the step portion 21f is provided between the wall portion 21c constituting the lower portion of the monocoque portion 25 and the wall portion 21d constituting the left protruding portion 31.
  • a step portion 21g is provided between the wall portion 21c constituting the lower portion of the monocoque portion 25 and the wall portion 21e constituting the right protruding portion 32.
  • the stepped portion may not be provided between the wall portion of the monocoque portion and the wall portions of the left protruding portion and the right protruding portion. That is, the structure body may be formed in an elliptical shape when viewed in a cross section in the left-right direction of the vehicle. Similarly, the structure body of the second embodiment may be formed in an elliptical shape.
  • the foams 133 and 134 are disposed in the space 131b of the left protrusion 131 and in the space 132b of the right protrusion 132, respectively.
  • the foam may be disposed only in the space of one of the left protruding portion and the right protruding portion.
  • the member disposed in the space of the protrusion may be a member other than a foam as long as the member is made of a material that can absorb an impact when the protrusion receives an impact.
  • the space portion of the protruding portion may be partially or entirely hollow.
  • the thickness of the wall portion 125a constituting the monocoque portion 125 is uniform.
  • the wall part may be partially thickened.
  • the vehicle may be a vehicle having any configuration as long as it is an inclined vehicle that turns in an inclined posture, such as a tricycle.
  • the present invention can be applied to a vehicle body of an inclined vehicle that turns in an inclined posture.

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Abstract

A tilting vehicle that turns with a tilted orientation, wherein a configuration that can be made even more lightweight is achieved. The tilting vehicle comprises a body that tilts leftward when turning leftward and tilts rightward when turning rightward. The body has a monocoque structure provided with a wall section 21a made of a material containing a carbon-fiber-reinforced resin, and the body also has a monocoque section 25 constituting at least part of the body, and a left protruding section 31 and right protruding section 32 that protrude along a lateral direction of a vehicle 1 from the monocoque section 25 toward the outside of the vehicle 1, and that are formed integrally with the monocoque section 25. The strength of the left protruding section 31 and the right protruding section 32, which protrude along the lateral direction of the vehicle 1 from the monocoque section 25 toward the outside of the vehicle 1, is less than the strength of the monocoque section 25.

Description

傾斜車両Inclined vehicle
 本発明は、傾斜姿勢で旋回する傾斜車両に関する。 The present invention relates to an inclined vehicle that turns in an inclined posture.
 傾斜姿勢で旋回する傾斜車両として、例えば特許文献1に開示される自動二輪車のフレーム構造体が知られている。この特許文献1に開示されているフレーム構造体は、カーボン繊維を用いた繊維強化樹脂によって、それぞれ一体形成された上側フレーム及び下側フレームを有する。上側フレーム及び下側フレームは、該上側フレームに設けられた上側ヘッドパイプと前記下側フレームに設けられた下側ヘッドパイプとが結合されるように、組み合わせられる。 For example, a motorcycle frame structure disclosed in Patent Document 1 is known as an inclined vehicle that turns in an inclined posture. The frame structure disclosed in Patent Document 1 has an upper frame and a lower frame that are integrally formed with a fiber reinforced resin using carbon fibers. The upper frame and the lower frame are combined so that the upper head pipe provided on the upper frame and the lower head pipe provided on the lower frame are coupled.
 前記特許文献1に開示されている構成では、自動二輪車のフレームを、カーボン繊維を用いた繊維強化樹脂によって構成することにより、軽量且つ高強度なフレームが得られる。 In the configuration disclosed in Patent Document 1, a lightweight and high-strength frame can be obtained by configuring the motorcycle frame with a fiber reinforced resin using carbon fibers.
特開2007-307944号公報JP 2007-307944 A
 ところで、上述の特許文献1に開示されている自動二輪車のフレーム構造体では、フレームに金属を用いた場合に比べて、車両の軽量化を図れるものの、さらなる車体の軽量化を図りたいという要求がある。 By the way, although the motorcycle frame structure disclosed in Patent Document 1 described above can reduce the weight of the vehicle as compared with the case where metal is used for the frame, there is a demand to further reduce the weight of the vehicle body. is there.
 本発明は、傾斜姿勢で旋回する傾斜車両において、さらなる軽量化を図れるような構成を得ることを目的とする。 An object of the present invention is to obtain a configuration that can further reduce the weight of an inclined vehicle that turns in an inclined posture.
 上述の特許文献1に開示されるように、傾斜姿勢で旋回する傾斜車両において、金属製フレームの代わりに、カーボン繊維を用いた繊維強化樹脂によって構成されたフレームを有する車両が知られている。本発明者らは、この構成よりもさらに車体を軽量化する構成について鋭意検討した。その結果、本発明者らは、車体に、飛行機で採用されているようなモノコック構造を採用することにより、前記車体のさらなる軽量化を実現できると考えた。 As disclosed in Patent Document 1 described above, a vehicle having a frame made of fiber reinforced resin using carbon fibers instead of a metal frame is known in an inclined vehicle that turns in an inclined posture. The present inventors diligently studied a configuration for reducing the weight of the vehicle body further than this configuration. As a result, the present inventors considered that the vehicle body can be further reduced in weight by adopting a monocoque structure as used in airplanes.
 しかしながら、傾斜姿勢で旋回する傾斜車両は、停車状態で左右方向に転倒する特性を有する。そのため、前記傾斜車両が停車状態で左右方向に転倒すると、前記傾斜車両の車体に衝撃が加わりやすい。繊維強化樹脂によって構成された車体は、衝撃が加わると、繊維強化樹脂によって構成された部位の内部で、樹脂及び繊維の構造が変化する場合がある。 However, an inclined vehicle that turns in an inclined posture has a characteristic of falling in the left-right direction when the vehicle is stopped. For this reason, when the tilted vehicle falls in the left-right direction in a stationary state, an impact is likely to be applied to the vehicle body of the tilted vehicle. When an impact is applied to a vehicle body made of fiber reinforced resin, the structure of the resin and fiber may change inside the portion made of fiber reinforced resin.
 したがって、上述のように傾斜姿勢で旋回する傾斜車両において、車体を、繊維強化樹脂によって構成されたモノコック構造にすると、前記車体に衝撃が加わった場合、繊維強化樹脂によって構成された部位の内部で、樹脂及び繊維の構造が変化する場合がある。そのため、上述のように傾斜姿勢で旋回する傾斜車両では、停車状態での転倒の可能性を考慮すると、繊維強化樹脂によって構成された車体は、モノコック構造ではなく、フレーム構造が好ましい。 Therefore, in the inclined vehicle that turns in the inclined posture as described above, when the vehicle body has a monocoque structure made of fiber reinforced resin, when an impact is applied to the vehicle body, inside the portion made of fiber reinforced resin. The structure of the resin and fiber may change. For this reason, in the inclined vehicle that turns in the inclined posture as described above, in consideration of the possibility of the vehicle toppling in the stopped state, the vehicle body constituted by the fiber reinforced resin preferably has a frame structure rather than a monocoque structure.
 ところで、上述のように傾斜姿勢で旋回する傾斜車両は停車状態で左右方向に転倒する特性を有するため、衝撃を受ける部位の特定が可能である。よって、前記傾斜車両において、停車状態で左右方向に転倒した際に衝撃を受ける部位を、車両設計時に予測できるとともに、繊維強化樹脂によって構成された部位の内部で、前記衝撃によって、樹脂及び繊維の構造が変化することを予めコントロールすることが可能である。 By the way, since the inclined vehicle that turns in the inclined posture as described above has a characteristic of falling in the left-right direction when the vehicle is stopped, it is possible to identify the portion that receives the impact. Therefore, in the inclined vehicle, a part that receives an impact when the vehicle falls over in the left-right direction in a stationary state can be predicted at the time of vehicle design, and the resin and the fiber are caused by the impact inside the part constituted by the fiber reinforced resin. It is possible to control in advance that the structure changes.
 以上の点を考慮して、本発明者らは、傾斜姿勢で旋回する傾斜車両において、該傾斜車両が停車状態で左右方向に転倒した際に車体が衝撃を受ける部分を予測して、その部分を除いて車体をモノコック構造にすることにより、前記車体が衝撃を受けて繊維強化樹脂によって構成された部位の内部で樹脂及び繊維の構造が変化することを防止できる点を見出した。 In consideration of the above points, the present inventors have predicted a portion of a tilted vehicle that turns in a tilted posture and that receives a shock when the tilted vehicle falls in the left-right direction when the tilted vehicle is stopped. It was found that the structure of the resin and the fibers can be prevented from changing inside the portion constituted by the fiber reinforced resin when the vehicle body is impacted by making the vehicle body into a monocoque structure except for the above.
 上述のような検討結果に基づいて、本発明者らは、以下のような構成に想到した。 Based on the above examination results, the present inventors have conceived the following configuration.
 本発明の一実施形態に係る傾斜車両は、傾斜姿勢で旋回する傾斜車両である。この傾斜車両は、左方向に旋回する際に左方向に傾斜し、右方向に旋回する際に右方向に傾斜する車体を備える。前記車体は、繊維強化樹脂を含む材料からなる壁部を備えたモノコック構造を有し、且つ、前記車体の少なくとも一部を構成するモノコック部と、前記モノコック部から前記傾斜車両の左方向に突出し、且つ、外表面が前記モノコック部の外表面と連続するように前記モノコック部と一体に形成され、前記モノコック部の強度に比べて低い強度を有する左突出部と、前記モノコック部から前記傾斜車両の右方向に突出し、且つ、外表面が前記モノコック部の外表面と連続するように前記モノコック部と一体に形成され、前記モノコック部の強度に比べて低い強度を有する右突出部とを有する。 An inclined vehicle according to an embodiment of the present invention is an inclined vehicle that turns in an inclined posture. The tilted vehicle includes a vehicle body that tilts to the left when turning left and leans to the right when turning right. The vehicle body has a monocoque structure provided with a wall portion made of a material containing fiber reinforced resin, and projects to the left of the inclined vehicle from the monocoque portion that constitutes at least a part of the vehicle body. And a left projecting portion that is integrally formed with the monocoque portion so that the outer surface is continuous with the outer surface of the monocoque portion, and has a lower strength than the strength of the monocoque portion, and the inclined vehicle from the monocoque portion. And a right protruding portion that is formed integrally with the monocoque portion so that the outer surface is continuous with the outer surface of the monocoque portion, and has a lower strength than the strength of the monocoque portion.
 傾斜車両の車体の少なくとも一部を、炭素繊維強化樹脂を含む材料からなる壁部を備えたモノコック構造であるモノコック部によって構成する。これにより、剛性を確保しつつ、従来の構成に比べて車体の軽量化を図れる。 At least a part of the vehicle body of the inclined vehicle is constituted by a monocoque portion that is a monocoque structure provided with a wall portion made of a material containing carbon fiber reinforced resin. Thereby, weight reduction of a vehicle body can be achieved compared with the conventional structure, ensuring rigidity.
 傾斜姿勢で旋回する傾斜車両は、停車状態で左右方向に転倒する特性を有する。そのため、前記傾斜車両に前記モノコック部から左右方向に突出する左突出部及び右突出部を設けることにより、前記傾斜車両が停車状態で左右方向に転倒した場合、前記左突出部または前記右突出部が衝撃を受ける。前記左突出部及び前記右突出部の強度は、前記モノコック部の強度よりも低い。これにより、前記傾斜車両が停車状態で左右方向に転倒した際に、モノコック部の壁部の内部で樹脂及び繊維の構造が変化する前に、前記左突出部または前記右突出部が変形を生じる。よって、前記モノコック部が受ける衝撃を、前記左突出部または前記右突出部によって吸収することができる。したがって、傾斜車両が停車状態で左右方向に転倒した場合に、前記モノコック部の壁部の内部で樹脂及び繊維の構造が変化することを防止できる。 An inclined vehicle that turns in an inclined posture has a characteristic of falling in the left-right direction when the vehicle is stopped. Therefore, when the inclined vehicle falls in the left-right direction in a stationary state by providing the inclined vehicle with a left protruding portion and a right protruding portion protruding in the left-right direction from the monocoque portion, the left protruding portion or the right protruding portion Is shocked. The strength of the left protruding portion and the right protruding portion is lower than the strength of the monocoque portion. As a result, when the inclined vehicle falls in the left-right direction in a stationary state, the left projecting portion or the right projecting portion is deformed before the resin and fiber structure changes inside the monocoque wall. . Therefore, the impact received by the monocoque portion can be absorbed by the left protruding portion or the right protruding portion. Therefore, it is possible to prevent the resin and fiber structure from changing inside the wall portion of the monocoque portion when the inclined vehicle falls in the left-right direction in a stopped state.
 他の観点によれば、本発明の傾斜車両は、以下の構成を含むことが好ましい。前記左突出部及び前記右突出部は、それぞれ、前記車体の外表面の一部を構成する外壁と、前記外壁の内方に位置する空間部とを有する。 According to another aspect, the inclined vehicle of the present invention preferably includes the following configuration. Each of the left protruding portion and the right protruding portion includes an outer wall that constitutes a part of the outer surface of the vehicle body, and a space portion that is located inward of the outer wall.
 これにより、傾斜車両が停車状態で左右方向に転倒した場合、衝撃を受けた左突出部または右突出部がより容易に変形する。よって、モノコック部の壁部の内部で樹脂及び繊維の構造が変化することをより確実に防止できる。 This makes it easier for the left projecting part or the right projecting part to be deformed more easily when the tilted vehicle falls in the left-right direction while the vehicle is stopped. Therefore, it can prevent more reliably that the structure of resin and a fiber changes inside the wall part of a monocoque part.
 他の観点によれば、本発明の傾斜車両は、以下の構成を含むことが好ましい。前記左突出部及び前記右突出部は、それぞれ、前記車体の外表面の一部を構成する外壁と、前記外壁の内方に位置する衝撃吸収部材とを有する。 According to another aspect, the inclined vehicle of the present invention preferably includes the following configuration. Each of the left protrusion and the right protrusion includes an outer wall that constitutes a part of the outer surface of the vehicle body, and an impact absorbing member that is positioned inward of the outer wall.
 傾斜車両が停車状態で左右方向に転倒した際に、左突出部または右突出部内の衝撃吸収部材によって衝撃をより効果的に吸収することができる。よって、モノコック部の壁部の内部で樹脂及び繊維の構造が変化することをより確実に防止できる。 When the inclined vehicle falls in the left-right direction while stopped, the impact can be more effectively absorbed by the impact absorbing member in the left protruding portion or the right protruding portion. Therefore, it can prevent more reliably that the structure of resin and a fiber changes inside the wall part of a monocoque part.
 他の観点によれば、本発明の傾斜車両は、以下の構成を含むことが好ましい。前記モノコック部は、前記壁部のうち前記左突出部との接続部分における壁部の厚みが、前記左突出部における前記外壁の厚みよりも大きく、前記壁部のうち前記右突出部との接続部分における壁部の厚みが、前記右突出部における前記外壁の厚みよりも大きい。 According to another aspect, the inclined vehicle of the present invention preferably includes the following configuration. The monocoque portion has a wall thickness at a connection portion with the left protruding portion of the wall portion that is larger than a thickness of the outer wall at the left protruding portion, and the wall portion is connected to the right protruding portion. The thickness of the wall part in a part is larger than the thickness of the outer wall in the right protrusion part.
 これにより、モノコック部と左突出部との接続部分における強度が、前記左突出部の強度よりも高くなるとともに、前記モノコック部と右突出部との接続部分における強度が、前記右突出部の強度よりも高くなる。よって、停車状態で傾斜車両が左右方向に転倒して前記左突出部または前記右突出部が変形を生じた際に、前記モノコック部の壁部の内部で樹脂及び繊維の構造が変化することをより確実に防止できる。 As a result, the strength at the connecting portion between the monocoque portion and the left protruding portion is higher than the strength at the left protruding portion, and the strength at the connecting portion between the monocoque portion and the right protruding portion is the strength of the right protruding portion. Higher than. Therefore, when the inclined vehicle falls in the left-right direction in a stopped state and the left projecting portion or the right projecting portion is deformed, the structure of the resin and fiber changes inside the wall portion of the monocoque portion. It can be prevented more reliably.
 他の観点によれば、本発明の傾斜車両は、以下の構成を含むことが好ましい。前記モノコック部の前記壁部は、前記傾斜車両の上下方向に延びる縦壁部を含み、前記左突出部及び前記右突出部は、前記傾斜車両の左右方向において、それぞれ、前記モノコック部の前記縦壁部から前記傾斜車両の外方に向かって突出する。 According to another aspect, the inclined vehicle of the present invention preferably includes the following configuration. The wall portion of the monocoque portion includes a vertical wall portion extending in the vertical direction of the inclined vehicle, and the left protruding portion and the right protruding portion are respectively in the vertical direction of the monocoque portion in the left-right direction of the inclined vehicle. Projecting outward from the inclined vehicle from the wall.
 これにより、モノコック部の剛性を向上できるとともに、傾斜姿勢で旋回する傾斜車両が停車状態で左右方向に転倒し、左突出部または右突出部が変形を生じた場合でも、前記モノコック部に与える影響を極力抑えることができる。 As a result, the rigidity of the monocoque part can be improved, and even if the inclined vehicle turning in an inclined posture falls in the left-right direction in a stationary state and the left projecting part or the right projecting part is deformed, the influence on the monocoque part is exerted. Can be suppressed as much as possible.
 他の観点によれば、本発明の傾斜車両は、以下の構成を含むことが好ましい。前記左突出部及び前記右突出部は、前記傾斜車両の前後方向において、前記左突出部及び前記右突出部の中央が前記モノコック部の中央よりも後方に位置するように設けられている。 According to another aspect, the inclined vehicle of the present invention preferably includes the following configuration. The left projecting portion and the right projecting portion are provided such that the center of the left projecting portion and the right projecting portion is located behind the center of the monocoque portion in the front-rear direction of the inclined vehicle.
 傾斜姿勢で旋回する傾斜車両が停車状態で左右方向に転倒すると、前記傾斜車両の後部が路面等に接触して衝撃を受けやすい。そのため、左突出部及び右突出部を、前記傾斜車両の前後方向において、左突出部及び右突出部の中央がモノコック部の中央よりも後方に位置するように設けることにより、前記傾斜車両が左右方向に転倒した際に、前記左突出部または前記右突出部によって、より確実に衝撃を吸収することができる。 When an inclined vehicle turning in an inclined posture falls in the left-right direction while stopped, the rear part of the inclined vehicle is likely to be subjected to an impact due to contact with the road surface or the like. Therefore, by providing the left protruding portion and the right protruding portion so that the center of the left protruding portion and the right protruding portion is located behind the center of the monocoque portion in the longitudinal direction of the inclined vehicle, the inclined vehicle When falling in the direction, the left protrusion or the right protrusion can absorb the shock more reliably.
 本明細書で使用される専門用語は、特定の実施例のみを定義する目的で使用されるのであって、前記専門用語によって発明を制限する意図はない。 The technical terms used in this specification are used only for the purpose of defining specific embodiments, and are not intended to limit the invention by the technical terms.
 本明細書で使用される「及び/または」は、一つまたは複数の関連して列挙された構成物のすべての組み合わせを含む。 As used herein, “and / or” includes all combinations of one or more of the associated listed components.
 本明細書において、「含む、備える(including)」「含む、備える(comprising)」または「有する(having)」及びそれらの変形の使用は、記載された特徴、工程、要素、成分、及び/または、それらの等価物の存在を特定するが、ステップ、動作、要素、コンポーネント、及び/または、それらのグループのうちの一つまたは複数を含むことができる。 As used herein, the terms “including”, “comprising” or “having” and the use of variations thereof are described features, steps, elements, components, and / or Identify the presence of their equivalents, but may include one or more of steps, actions, elements, components, and / or groups thereof.
 本明細書において、「取り付けられた」、「接続された」、「結合された」、及び/または、それらの等価物は、広義の意味で使用され、"直接的及び間接的な"取り付け、接続及び結合の両方を包含する。さらに、「接続された」及び「結合された」は、物理的または機械的な接続または結合に限定されず、直接的または間接的な接続または結合を含むことができる。 In this specification, "attached", "connected", "coupled" and / or their equivalents are used in a broad sense, and are "direct and indirect" attachments, Includes both connections and couplings. Further, “connected” and “coupled” are not limited to physical or mechanical connections or couplings, and can include direct or indirect connections or couplings.
 他に定義されない限り、本明細書で使用される全ての用語(技術用語及び科学用語を含む)は、本発明が属する技術分野の当業者によって一般的に理解される意味と同じ意味を有する。 Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
 一般的に使用される辞書に定義された用語は、関連する技術及び本開示の文脈における意味と一致する意味を有すると解釈されるべきであり、本明細書で明示的に定義されていない限り、理想的または過度に形式的な意味で解釈されることはない。 Terms defined in commonly used dictionaries should be construed to have a meaning consistent with the meaning in the context of the related art and this disclosure, unless explicitly defined herein. Should not be interpreted in an ideal or overly formal sense.
 本発明の説明においては、いくつもの技術及び工程が開示されていると理解される。これらの各々は、個別の利益を有し、他に開示された技術の一つ以上、または、場合によっては全てと共に使用することもできる。 It will be understood that a number of techniques and processes are disclosed in the description of the invention. Each of these has individual benefits and can be used with one or more of the other disclosed techniques, or possibly all.
 したがって、明確にするために、本発明の説明では、不要に個々のステップの可能な組み合わせをすべて繰り返すことを控える。しかしながら、本明細書及び特許請求の範囲は、そのような組み合わせがすべて本発明の範囲内であることを理解して読まれるべきである。 Therefore, for clarity, the description of the invention refrains from repeating all possible combinations of individual steps unnecessarily. However, the specification and claims should be read with the understanding that all such combinations are within the scope of this invention.
 本明細書では、本発明に係る傾斜車両について説明する。 In this specification, the inclined vehicle according to the present invention will be described.
 以下の説明では、本発明の完全な理解を提供するために多数の具体的な例を述べる。しかしながら、当業者は、これらの具体的な例がなくても本発明を実施できることが明らかである。 In the following description, numerous specific examples are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without these specific examples.
 よって、以下の開示は、本発明の例示として考慮されるべきであり、本発明を以下の図面または説明によって示される特定の実施形態に限定することを意図するものではない。 Accordingly, the following disclosure is to be considered as illustrative of the invention and is not intended to limit the invention to the specific embodiments illustrated by the following drawings or description.
 本発明の適用対象は、自動二輪車に限らない。本発明は、自動二輪車以外の傾斜車両に適用してもよい。傾斜車両とは、右旋回時に車両の右方に傾斜し、左旋回時に車両の左方に傾斜する車体フレームを有する車両である。 The application target of the present invention is not limited to motorcycles. The present invention may be applied to an inclined vehicle other than a motorcycle. A tilted vehicle is a vehicle having a body frame that tilts to the right of the vehicle when turning right and leans to the left of the vehicle when turning left.
 本発明の一実施形態に係る傾斜車両によれば、さらなる軽量化を図れるような構成が得られる。 According to the inclined vehicle according to the embodiment of the present invention, a configuration that can further reduce the weight can be obtained.
図1は、本発明の実施形態1に係る車両の全体構成を示す側面図である。FIG. 1 is a side view showing an overall configuration of a vehicle according to Embodiment 1 of the present invention. 図2は、モノコック部を有するリア構造体の概略構成を示す斜視図である。FIG. 2 is a perspective view showing a schematic configuration of a rear structure having a monocoque portion. 図3は、リア構造体を車両の上方から見た平面図である。FIG. 3 is a plan view of the rear structure as viewed from above the vehicle. 図4は、図2におけるIV-IV線断面図である。4 is a cross-sectional view taken along line IV-IV in FIG. 図5は、車両が停車状態で左右方向に転倒した際に、リア構造体の構造体本体が地面に接触する様子を模式的に示す図である。FIG. 5 is a diagram schematically illustrating how the structure body of the rear structure contacts the ground when the vehicle falls in the left-right direction while the vehicle is stopped. 図6は、実施形態2に係る車両のリア構造体における構造体本体の概略構成を示す図4相当図である。FIG. 6 is a view corresponding to FIG. 4 illustrating a schematic configuration of a structure body in a vehicle rear structure according to the second embodiment.
 以下で、各実施形態について、図面を参照しながら説明する。各図において、同一部分には同一の符号を付して、その同一部分の説明は繰り返さない。なお、各図中の構成部材の寸法は、実際の構成部材の寸法及び各構成部材の寸法比率等を忠実に表したものではない。 Hereinafter, each embodiment will be described with reference to the drawings. In each figure, the same parts are denoted by the same reference numerals, and the description of the same parts will not be repeated. In addition, the dimension of the structural member in each figure does not represent the dimension of an actual structural member, the dimension ratio of each structural member, etc. faithfully.
 以下、図中の矢印Fは、車両の前方向を示す。図中の矢印Uは、車両の上方向を示す。図中の矢印Rは、車両の右方向を示す。図中の矢印Lは、車両の左方向を示す。なお、前後左右の方向は、それぞれ、車両1を運転する乗員から見た場合の前後左右の方向を意味する。 Hereinafter, the arrow F in the figure indicates the forward direction of the vehicle. An arrow U in the figure indicates the upward direction of the vehicle. An arrow R in the figure indicates the right direction of the vehicle. An arrow L in the figure indicates the left direction of the vehicle. The front-rear and left-right directions mean front-rear and left-right directions as viewed from the occupant driving the vehicle 1.
 (実施形態1)
 図1は、実施形態1に係る車両1(傾斜車両)の全体構成の概略を示す側面図である。車両1は、例えば、自動二輪車であり、車体2と、前輪3と、後輪4とを備える。車両1は、傾斜姿勢で旋回する車両である。すなわち、車両1は、車両1の左右方向において、左方向に旋回する際に左方向に傾斜し、右方向に旋回する際に右方向に傾斜する車体2を備える。
(Embodiment 1)
FIG. 1 is a side view showing an outline of the overall configuration of a vehicle 1 (an inclined vehicle) according to the first embodiment. The vehicle 1 is a motorcycle, for example, and includes a vehicle body 2, a front wheel 3, and a rear wheel 4. The vehicle 1 is a vehicle that turns in an inclined posture. That is, the vehicle 1 includes a vehicle body 2 that inclines to the left when turning leftward and leans to the right when turning rightward in the left-right direction of the vehicle 1.
 車体2は、車体カバー5、ハンドル6、シート7及びパワーユニット8等の各構成部品を支持する。本実施形態では、車体2は、フレーム10と、リア構造体20とを含む。すなわち、車体2は、フレーム10及びリア構造体20を含み、且つ、車両1の各構成部品を支持する構造体である。 The vehicle body 2 supports components such as the vehicle body cover 5, the handle 6, the seat 7, and the power unit 8. In the present embodiment, the vehicle body 2 includes a frame 10 and a rear structure 20. That is, the vehicle body 2 is a structure that includes the frame 10 and the rear structure 20 and supports each component of the vehicle 1.
 フレーム10は、ヘッドパイプ11と、メインフレーム12とを有する。ヘッドパイプ11は、車両1の前部に位置し、ハンドル6に接続されたステアリングシャフト6aを回転可能に支持する。メインフレーム12は、ヘッドパイプ11から車両後方に向かって延びるように、ヘッドパイプ11に接続されている。メインフレーム12には、パワーユニット8等が支持されている。なお、フレーム10は、車体カバー5によって覆われている。 The frame 10 has a head pipe 11 and a main frame 12. The head pipe 11 is located at the front of the vehicle 1 and rotatably supports a steering shaft 6a connected to the handle 6. The main frame 12 is connected to the head pipe 11 so as to extend from the head pipe 11 toward the rear of the vehicle. A power unit 8 and the like are supported on the main frame 12. The frame 10 is covered with a vehicle body cover 5.
 フレーム10は、金属材料によって構成されていてもよいし、炭素などの繊維によって強化された繊維強化樹脂を含む材料によって構成されていてもよい。 The frame 10 may be made of a metal material, or may be made of a material containing a fiber reinforced resin reinforced with fibers such as carbon.
 リア構造体20は、リア構造体20によって支持する構成部品の荷重及びリア構造体20に入力される力を、壁部21a(図4参照)によって負担する、いわゆる応力外皮構造を有する。リア構造体20は、車体2の外表面を構成する。すなわち、リア構造体20は、前記荷重及び力を負担する構造部材としての機能と、車体2の外表面を構成するカバー部材としての機能とを有する。 The rear structure 20 has a so-called stress skin structure in which the load of the components supported by the rear structure 20 and the force input to the rear structure 20 are borne by the wall 21a (see FIG. 4). The rear structure 20 constitutes the outer surface of the vehicle body 2. That is, the rear structure 20 has a function as a structural member that bears the load and force and a function as a cover member that constitutes the outer surface of the vehicle body 2.
 図2は、リア構造体20の概略構成を示す斜視図である。図3は、リア構造体20を車両1の上方から見た平面図である。本実施形態では、リア構造体20は、車両1のリアフレームとして機能するとともに、車両1のリアカバーとしても機能する。 FIG. 2 is a perspective view showing a schematic configuration of the rear structure 20. FIG. 3 is a plan view of the rear structure 20 as viewed from above the vehicle 1. In the present embodiment, the rear structure 20 functions as a rear frame of the vehicle 1 and also functions as a rear cover of the vehicle 1.
 リア構造体20は、炭素繊維によって樹脂(例えば、エポキシ樹脂、ビニルエステル、フェノール樹脂、ポリアミド、ポリプロピレン、ポリフェニレンサルファイドなど)が強化された炭素繊維強化樹脂を含む材料によって構成されている。前記炭素繊維は、繊維同士が編まれていてもよいし、編まれていない状態であってもよい。また、前記炭素繊維は、所定長さ(例えば1mm)以上、連続した繊維であってもよいし、不連続繊維であってもよい。前記炭素繊維として、連続した繊維及び不連続繊維を用いてもよい。 The rear structure 20 is made of a material including a carbon fiber reinforced resin in which a resin (for example, epoxy resin, vinyl ester, phenol resin, polyamide, polypropylene, polyphenylene sulfide, or the like) is reinforced with carbon fibers. The carbon fibers may be knitted or may not be knitted. The carbon fiber may be a continuous fiber or a discontinuous fiber having a predetermined length (for example, 1 mm) or more. A continuous fiber and a discontinuous fiber may be used as the carbon fiber.
 リア構造体20は、車両の前後方向に長い形状を有する。図3に示すように、リア構造体20は、車両1の前後方向の中央よりも後方の部分において、車両1の左右方向の寸法が、前部における左右方向の寸法よりも大きい。すなわち、リア構造体20は、車両1を上方から見て、車両1の前後方向における中央よりも後方の部分の一部が、リア構造体20の左右方向に最も突出している。リア構造体20において車両1の左方向に最も突出した部分は、後述する左突出部31である。リア構造体20において車両1の右方向に最も突出した部分は、後述する右突出部32である。 The rear structure 20 has a long shape in the front-rear direction of the vehicle. As shown in FIG. 3, in the rear structure 20, the dimension in the left-right direction of the vehicle 1 is larger than the dimension in the left-right direction at the front part at a portion rearward of the center in the front-rear direction of the vehicle 1. That is, the rear structure 20 has a part of the rear portion of the rear structure 20 that protrudes most in the left-right direction with respect to the center of the vehicle 1 in the front-rear direction when the vehicle 1 is viewed from above. The portion of the rear structure 20 that protrudes most in the left direction of the vehicle 1 is a left protruding portion 31 described later. The portion of the rear structure 20 that protrudes most in the right direction of the vehicle 1 is a right protruding portion 32 described later.
 詳しくは、リア構造体20は、構造体本体21と、一対の接続部22とを有する。図4に、構造体本体21を車両1の左右方向に切断した場合の断面(以下、単に、車両1の左右方向の断面という)を示す。構造体本体21は、図4に示すように、車両1の左右方向の断面で見て、壁部21aによって囲まれた閉断面を有する。すなわち、構造体本体21は、内方に空間部20aを有する。図2に示すように、車両1の前後方向において、構造体本体21の前部には、シート7を配置するための切り欠き部23が設けられている。 Specifically, the rear structure 20 includes a structure body 21 and a pair of connection portions 22. FIG. 4 shows a cross section when the structure body 21 is cut in the left-right direction of the vehicle 1 (hereinafter simply referred to as a left-right cross section of the vehicle 1). As shown in FIG. 4, the structure body 21 has a closed cross section surrounded by a wall portion 21 a when viewed in a cross section in the left-right direction of the vehicle 1. That is, the structure main body 21 has the space part 20a inside. As shown in FIG. 2, in the front-rear direction of the vehicle 1, a notch portion 23 for arranging the seat 7 is provided in the front portion of the structure body 21.
 一対の接続部22は、構造体本体21から車両1の下方に向かって延びている。一対の接続部22は、構造体本体21の下部に、対向して設けられている。一対の接続部22は、構造体本体21と一体で形成されている。一対の接続部22は、フレーム10に接続される。 The pair of connection portions 22 extends from the structure body 21 toward the lower side of the vehicle 1. The pair of connection portions 22 are provided in the lower part of the structure body 21 so as to face each other. The pair of connection portions 22 are formed integrally with the structure body 21. The pair of connection portions 22 are connected to the frame 10.
 図2から図4に示すように、構造体本体21は、モノコック部25と、左突出部31及び右突出部32とを有する。モノコック部25は、車両1の左右方向において、構造体本体21の中央に位置する。左突出部31は、車両1の左右方向において、モノコック部25に対して左方に設けられている。右突出部32は、車両1の左右方向において、モノコック部25に対して右方に設けられている。すなわち、左突出部31及び右突出部32は、車両1の左右方向において、モノコック部25に対して外方に突出している。これにより、構造体本体21は、モノコック部25の左方に左突出部31を有するとともに、モノコック部25の右方に右突出部32を有する。左突出部31及び右突出部32は、リア構造体20において、左右方向に最も突出している。 2 to 4, the structure body 21 includes a monocoque portion 25, a left protruding portion 31, and a right protruding portion 32. The monocoque portion 25 is located at the center of the structure body 21 in the left-right direction of the vehicle 1. The left protruding portion 31 is provided on the left side of the monocoque portion 25 in the left-right direction of the vehicle 1. The right protruding portion 32 is provided to the right of the monocoque portion 25 in the left-right direction of the vehicle 1. That is, the left protruding portion 31 and the right protruding portion 32 protrude outward from the monocoque portion 25 in the left-right direction of the vehicle 1. Thereby, the structure body 21 has the left protruding portion 31 on the left side of the monocoque portion 25 and the right protruding portion 32 on the right side of the monocock portion 25. The left protrusion 31 and the right protrusion 32 protrude most in the left-right direction in the rear structure 20.
 図3に示すように、左突出部31及び右突出部32は、車両1の前後方向において、構造体本体21の後部に配置されている。左突出部31及び右突出部32は、車両1の前後方向において、左突出部31及び右突出部32の中央Yがモノコック部25の中央Xよりも後方に位置するように、構造体本体21に設けられている。 As shown in FIG. 3, the left protrusion 31 and the right protrusion 32 are arranged at the rear part of the structure body 21 in the front-rear direction of the vehicle 1. The left projecting portion 31 and the right projecting portion 32 are configured so that the center Y of the left projecting portion 31 and the right projecting portion 32 is located behind the center X of the monocoque portion 25 in the longitudinal direction of the vehicle 1. Is provided.
 図4に示すように、壁部21aは、モノコック部25を構成する壁部21b,21cと、左突出部31及び右突出部32をそれぞれ構成する壁部21d,21e(外壁)とを有する。壁部21bは、モノコック部25の上部を構成する壁部である。壁部21cは、モノコック部25の下部を構成する壁部である。壁部21b,21cは、車両1の左右方向に延びている。壁部21d,21eは、車両1の左右方向の断面で見て、屈曲部を有するU字状である。車両1の左右方向の断面で見て、左突出部31を構成する壁部21dは、屈曲部が左方に位置する。車両1の左右方向の断面で見て、右突出部32を構成する壁部21eは、屈曲部が右方に位置する。壁部21b,21c,21d,21eは、それぞれ、炭素繊維強化樹脂を含む材料によって構成されている。 As shown in FIG. 4, the wall portion 21a includes wall portions 21b and 21c constituting the monocoque portion 25, and wall portions 21d and 21e (outer walls) constituting the left protruding portion 31 and the right protruding portion 32, respectively. The wall portion 21 b is a wall portion that constitutes the upper portion of the monocoque portion 25. The wall portion 21 c is a wall portion constituting the lower part of the monocoque portion 25. The walls 21 b and 21 c extend in the left-right direction of the vehicle 1. The wall portions 21d and 21e are U-shaped having a bent portion when viewed in the cross section of the vehicle 1 in the left-right direction. Looking at the cross section of the vehicle 1 in the left-right direction, the wall 21d constituting the left protruding portion 31 has a bent portion located on the left side. Looking at the cross section of the vehicle 1 in the left-right direction, the wall portion 21e constituting the right protruding portion 32 has a bent portion located on the right side. Each of the wall portions 21b, 21c, 21d, and 21e is made of a material containing a carbon fiber reinforced resin.
 壁部21b,21c,21d,21eは、一体に形成されている。すなわち、モノコック部25、左突出部31及び右突出部32は、外表面が連続するように一体に形成されている。モノコック部25の内方には、空間部20aの一部を構成する空間部25aが形成されている。左突出部31及び右突出部32の内方には、それぞれ、空間部20aの一部を構成する空間部31a,32aが形成されている。 The wall portions 21b, 21c, 21d, and 21e are integrally formed. That is, the monocoque portion 25, the left protruding portion 31, and the right protruding portion 32 are integrally formed so that the outer surfaces are continuous. A space portion 25a constituting a part of the space portion 20a is formed inside the monocoque portion 25. Space portions 31a and 32a constituting a part of the space portion 20a are formed inside the left protrusion portion 31 and the right protrusion portion 32, respectively.
 図4に示すように、左突出部31及び右突出部32は、車両1の上下方向の厚みがモノコック部25に比べて小さい。本実施形態の場合、壁部21dのうち左突出部31の下部を構成する壁部21dは、モノコック部25の下部を構成する壁部21cよりも、上方に位置している。壁部21eのうち右突出部32の下部を構成する壁部21eは、モノコック部25の下部を構成する壁部21cよりも、上方に位置している。これにより、構造体本体21は、車両1の左右方向において、両端部が中央部よりも上方に位置するような形状を有する。すなわち、車両1の上下方向において、モノコック部25の下部を構成する壁部21cと左突出部31を構成する壁部21dとの間、及び、モノコック部25の下部を構成する壁部21cと右突出部32を構成する壁部21eとの間には、それぞれ、段差部21f,21gが形成されている。 As shown in FIG. 4, the left protruding portion 31 and the right protruding portion 32 are smaller in thickness in the vertical direction of the vehicle 1 than the monocoque portion 25. In the case of the present embodiment, the wall portion 21 d that forms the lower portion of the left protruding portion 31 in the wall portion 21 d is positioned above the wall portion 21 c that forms the lower portion of the monocoque portion 25. Of the wall 21e, the wall 21e constituting the lower part of the right protruding part 32 is located above the wall 21c constituting the lower part of the monocoque part 25. Thereby, the structure main body 21 has a shape in which both end portions are positioned above the center portion in the left-right direction of the vehicle 1. That is, in the vertical direction of the vehicle 1, between the wall portion 21 c constituting the lower portion of the monocoque portion 25 and the wall portion 21 d constituting the left protruding portion 31, and the wall portion 21 c constituting the lower portion of the monocoque portion 25 and the right side Step portions 21f and 21g are formed between the wall portion 21e and the protruding portion 32, respectively.
 壁部21bには、モノコック部25の左右の両端部に、他の部分よりも厚みが大きい厚肉部27が設けられている。厚肉部27は、モノコック部25の上部を構成する壁部21bに設けられている。壁部21cには、モノコック部25の左右の両端部に、他の部分よりも厚みが大きい厚肉部28が設けられている。厚肉部28は、モノコック部25の下部を構成する壁部21cに設けられている。 The wall portion 21b is provided with thick portions 27 that are thicker than the other portions at both left and right ends of the monocoque portion 25. The thick part 27 is provided in the wall part 21b which comprises the upper part of the monocoque part 25. As shown in FIG. The wall portion 21c is provided with thick portions 28 that are thicker than the other portions at both left and right ends of the monocoque portion 25. The thick part 28 is provided in the wall part 21c which comprises the lower part of the monocoque part 25. As shown in FIG.
 モノコック部25の左端部に位置する厚肉部27,28は、それぞれ、モノコック部25を構成する壁部21b,21cにおいて、左突出部31と隣接する位置に設けられている。すなわち、モノコック部25は、左突出部31との接続部分における壁部21b,21cの厚みが、左突出部31を構成する壁部21dの厚みよりも大きい。 The thick portions 27 and 28 located at the left end portion of the monocoque portion 25 are provided at positions adjacent to the left protruding portion 31 in the wall portions 21b and 21c constituting the monocoque portion 25, respectively. That is, in the monocoque portion 25, the thickness of the wall portions 21 b and 21 c at the connection portion with the left protruding portion 31 is larger than the thickness of the wall portion 21 d constituting the left protruding portion 31.
 モノコック部25の右端部に位置する厚肉部27,28は、それぞれ、モノコック部25を構成する壁部21b,21cにおいて、右突出部32と隣接する位置に設けられている。すなわち、モノコック部25は、右突出部32との接続部分における壁部21b,21cの厚みが、右突出部32を構成する壁部21eの厚みよりも大きい。 The thick portions 27 and 28 located at the right end portion of the monocoque portion 25 are provided at positions adjacent to the right protruding portion 32 in the wall portions 21b and 21c constituting the monocoque portion 25, respectively. That is, in the monocoque portion 25, the thickness of the wall portions 21 b and 21 c at the connection portion with the right protruding portion 32 is larger than the thickness of the wall portion 21 e constituting the right protruding portion 32.
 構造体本体21において、厚肉部27,28よりも左方向の外方部分が、左突出部31であり、厚肉部27,28よりも右方向の外方部分が、右突出部32である。なお、厚肉部28は、モノコック部25の下部を構成する壁部21cと左突出部31を構成する壁部21dとの間に形成された段差部21f、及び、モノコック部25の下部を構成する壁部21cと右突出部32を構成する壁部21eとの間に形成された段差部21gに、それぞれ設けられている。 In the structure main body 21, the left outward portion of the thick portions 27 and 28 is the left protruding portion 31, and the right outward portion of the thick portions 27 and 28 is the right protruding portion 32. is there. The thick part 28 constitutes a step part 21f formed between the wall part 21c constituting the lower part of the monocoque part 25 and the wall part 21d constituting the left protruding part 31, and the lower part of the monocoque part 25. The step portion 21g formed between the wall portion 21c and the wall portion 21e constituting the right protruding portion 32 is provided.
 厚肉部27,28は、モノコック部25を構成する壁部21b,21cからモノコック部25の内方に向かって突出している。厚肉部27,28は、モノコック部25を補強している。厚肉部27,28も、車体2の構造体の一部を構成する。 The thick portions 27 and 28 protrude from the walls 21 b and 21 c constituting the monocoque portion 25 toward the inside of the monocoque portion 25. The thick portions 27 and 28 reinforce the monocoque portion 25. The thick portions 27 and 28 also constitute a part of the structure of the vehicle body 2.
 なお、図4の例では、厚肉部27,28のうち左突出部31に近い厚肉部27,28は、車両1の左右方向の断面で見て、左突出部31に近い部分の厚みが、左方向外方に向かって徐々に小さくなっている。また、厚肉部27,28のうち右突出部32に近い厚肉部27,28は、車両1の左右方向の断面で見て、右突出部32に近い部分の厚みが、右方向外方に向かって徐々に小さくなっている。 In the example of FIG. 4, of the thick portions 27 and 28, the thick portions 27 and 28 that are close to the left protruding portion 31 are the thicknesses of the portions that are close to the left protruding portion 31 when viewed in the left-right cross section of the vehicle 1. However, it gradually decreases toward the left outward. Further, of the thick portions 27 and 28, the thick portions 27 and 28 close to the right protruding portion 32 have a thickness of a portion close to the right protruding portion 32 when viewed in the left-right cross section of the vehicle 1. It is getting smaller gradually.
 以上のように、モノコック部25の壁部21b,21cに厚肉部27,28が設けられているため、モノコック部25は、左突出部31及び右突出部32に比べて高い強度を有する。すなわち、左突出部31及び右突出部32は、モノコック部25に比べて強度が低い。 As described above, since the thick wall portions 27 and 28 are provided on the wall portions 21 b and 21 c of the monocoque portion 25, the monocoque portion 25 has higher strength than the left projecting portion 31 and the right projecting portion 32. That is, the left protruding portion 31 and the right protruding portion 32 have lower strength than the monocoque portion 25.
 モノコック部25は、壁部21b,21cに上述のような厚肉部27,28を有することにより、車体2の一部を構成可能な強度を有する。すなわち、モノコック部25は、左突出部31及び右突出部32の強度に関係なく、車体2の一部を構成可能な強度を有する。 The monocoque portion 25 has a strength capable of constituting a part of the vehicle body 2 by having the thick portions 27 and 28 as described above on the wall portions 21b and 21c. That is, the monocoque portion 25 has a strength that can constitute a part of the vehicle body 2 regardless of the strength of the left protruding portion 31 and the right protruding portion 32.
 図5は、車両1が停車状態で左方向に転倒した場合において、リア構造体20の構造体本体21が地面Gと接触する様子を模式的に示した図である。車両1が左右方向に転倒した場合、モノコック部25から左右方向に突出する左突出部31または右突出部32が、地面Gと接触する。なお、図5の例では、左突出部31が地面Gに接触した様子を示している。 FIG. 5 is a diagram schematically showing a state in which the structure body 21 of the rear structure 20 contacts the ground G when the vehicle 1 falls to the left while the vehicle 1 is stopped. When the vehicle 1 falls in the left-right direction, the left protruding portion 31 or the right protruding portion 32 that protrudes from the monocoque portion 25 in the left-right direction comes into contact with the ground G. In the example of FIG. 5, the left protruding portion 31 is in contact with the ground G.
 上述のとおり、左突出部31及び右突出部32は、モノコック部25に比べて強度が低い。よって、車両1が停車状態で左右方向に転倒した場合、モノコック部25の内部で樹脂及び繊維の構造が変化する前に、左突出部31または右突出部32が変形する。左突出部31及び右突出部32の内方には、それぞれ、空間部31a,32aが形成されている。よって、左突出部31及び右突出部32は、車両1が左右方向に転倒した際の衝撃によって容易に変形する。モノコック部25には、壁部21b,21cに厚肉部27,28が設けられている。よって、厚肉部27,28が設けられたモノコック部25と、左突出部31及び右突出部32との強度差は大きい。これにより、左突出部31及び右突出部32は、車両1の転倒時の衝撃によってより容易に変形する。なお、前記樹脂及び繊維の構造が変化するとは、樹脂が繊維に対して剥離したり、樹脂が割れたりすることを意味する。 As described above, the left protruding portion 31 and the right protruding portion 32 have lower strength than the monocoque portion 25. Therefore, when the vehicle 1 falls in the left-right direction with the vehicle stopped, the left protruding portion 31 or the right protruding portion 32 is deformed before the structure of the resin and fiber is changed inside the monocoque portion 25. Space portions 31a and 32a are formed inside the left protruding portion 31 and the right protruding portion 32, respectively. Therefore, the left protrusion 31 and the right protrusion 32 are easily deformed by an impact when the vehicle 1 falls in the left-right direction. In the monocoque portion 25, thick portions 27 and 28 are provided on the wall portions 21b and 21c. Therefore, the difference in strength between the monocoque portion 25 provided with the thick portions 27 and 28 and the left protruding portion 31 and the right protruding portion 32 is large. As a result, the left protruding portion 31 and the right protruding portion 32 are more easily deformed by an impact when the vehicle 1 falls. In addition, that the structure of the said resin and fiber changes means that resin peels with respect to a fiber, or resin breaks.
 しかも、モノコック部25の下部を構成する壁部21cと左突出部31を構成する壁部21dとの間に形成された段差部21fに厚肉部28が設けられている。また、モノコック部25の下部を構成する壁部21cと右突出部32を構成する壁部21eとの間に形成された段差部21gに厚肉部28が設けられている。これにより、段差部21f,21gと左突出部31及び右突出部32との強度差は大きい。よって、前記衝撃によって、左突出部31または右突出部32はより容易に変形する。 Moreover, a thick portion 28 is provided in a stepped portion 21f formed between the wall portion 21c constituting the lower portion of the monocoque portion 25 and the wall portion 21d constituting the left protruding portion 31. In addition, a thick portion 28 is provided at a step portion 21g formed between a wall portion 21c constituting the lower portion of the monocoque portion 25 and a wall portion 21e constituting the right protruding portion 32. Thereby, the difference in strength between the stepped portions 21f and 21g and the left protruding portion 31 and the right protruding portion 32 is large. Thus, the left protrusion 31 or the right protrusion 32 is more easily deformed by the impact.
 これにより、上述のように車両1が左右方向に転倒した場合に、リア構造体20が受ける衝撃を、左突出部31または右突出部32によって吸収することができる。したがって、上述のように車両1が停車状態で左右方向に転倒した場合に、リア構造体20のモノコック部25の内部で樹脂及び繊維の構造が変化することを防止できる。よって、車両1の性能に影響を与えるような車体2の強度低下を防止できる。 Thereby, when the vehicle 1 falls in the left-right direction as described above, the impact received by the rear structure 20 can be absorbed by the left protruding portion 31 or the right protruding portion 32. Accordingly, it is possible to prevent the resin and fiber structures from changing inside the monocoque portion 25 of the rear structure 20 when the vehicle 1 falls in the left-right direction while the vehicle 1 is stopped as described above. Therefore, it is possible to prevent a reduction in the strength of the vehicle body 2 that affects the performance of the vehicle 1.
 本実施形態に係る車両1は、傾斜姿勢で旋回する傾斜車両である。車両1は、左方向に旋回する際に左方向に傾斜し、右方向に旋回する際に右方向に傾斜する車体2を備える。車体2は、炭素繊維強化樹脂を含む材料からなる壁部21aを備えたモノコック構造を有し、且つ、車体2の少なくとも一部を構成するモノコック部25と、モノコック部25から車両1の左方向に突出し、且つ、モノコック部25と一体に形成され、モノコック部25の強度に比べて低い強度を有する左突出部31と、モノコック部25から車両1の右方向に突出し、且つ、モノコック部25と一体に形成され、モノコック部25の強度に比べて低い強度を有する右突出部32とを有する。 The vehicle 1 according to the present embodiment is an inclined vehicle that turns in an inclined posture. The vehicle 1 includes a vehicle body 2 that tilts left when turning left and leans right when turning right. The vehicle body 2 has a monocoque structure provided with a wall portion 21a made of a material containing a carbon fiber reinforced resin, and includes a monocoque portion 25 constituting at least a part of the vehicle body 2, and a leftward direction of the vehicle 1 from the monocoque portion 25 A left protruding portion 31 that is integrally formed with the monocoque portion 25 and has a lower strength than that of the monocoque portion 25, a rightward protrusion of the vehicle 1 from the monocoque portion 25, and the monocoque portion 25, The right protrusion 32 is formed integrally and has a lower strength than that of the monocoque portion 25.
 車両1の車体2の少なくとも一部を、炭素繊維強化樹脂を含む材料からなる壁部21b,21cを有するモノコック構造であるモノコック部25によって構成することにより、剛性を確保しつつ、従来の構成に比べて車体2の軽量化を図れる。 By constructing at least a part of the vehicle body 2 of the vehicle 1 by the monocoque portion 25 that is a monocoque structure having wall portions 21b and 21c made of a material containing carbon fiber reinforced resin, the rigidity of the vehicle 1 is maintained while maintaining rigidity. In comparison, the weight of the vehicle body 2 can be reduced.
 傾斜姿勢で旋回する車両1は、停車状態で車両1の左右方向に転倒する特性を有する。そのため、モノコック部25から車両1の左右方向に突出する左突出部31及び右突出部32を設けることにより、停車状態で車両1が左右方向に転倒した際に、左突出部31または右突出部32が衝撃を受ける。しかも、左突出部31及び右突出部32の強度は、モノコック部25の強度よりも低い。これにより、車両1が停車状態で左右方向に転倒した際に、左突出部31または右突出部32が衝撃を受けて容易に変形するため、左突出部31または右突出部32によって前記衝撃を吸収することができる。したがって、車両1が左右方向に転倒した際に、モノコック部25の内部で樹脂及び繊維の構造が変化することを防止できる。 The vehicle 1 turning in an inclined posture has a characteristic of falling in the left-right direction of the vehicle 1 in a stopped state. Therefore, by providing the left protruding portion 31 and the right protruding portion 32 that protrude from the monocoque portion 25 in the left-right direction of the vehicle 1, when the vehicle 1 falls in the left-right direction in a stopped state, the left protruding portion 31 or the right protruding portion 32 receives an impact. Moreover, the strength of the left protruding portion 31 and the right protruding portion 32 is lower than the strength of the monocoque portion 25. As a result, when the vehicle 1 falls in the left-right direction while the vehicle 1 is stopped, the left projecting portion 31 or the right projecting portion 32 is easily deformed by receiving an impact. Therefore, the left projecting portion 31 or the right projecting portion 32 applies the impact. Can be absorbed. Therefore, it is possible to prevent the resin and fiber structure from changing inside the monocoque portion 25 when the vehicle 1 falls in the left-right direction.
 左突出部31及び右突出部32は、それぞれ、車体2の外表面の一部を構成する壁部21d,21eと、壁部21d,21eの内方に位置する空間部31a及び空間部32aを有する。 The left protruding portion 31 and the right protruding portion 32 include a wall portion 21d and 21e that constitute a part of the outer surface of the vehicle body 2, and a space portion 31a and a space portion 32a that are located inward of the wall portions 21d and 21e, respectively. Have.
 これにより、傾斜姿勢で旋回する車両1が、停車状態で左右方向に転倒した際に、左突出部31または右突出部32が衝撃を受けて、より容易に変形する。よって、モノコック部25の内部で樹脂及び繊維の構造が変化することをより確実に防止できる。 Thus, when the vehicle 1 turning in an inclined posture falls in the left-right direction in a stationary state, the left protruding portion 31 or the right protruding portion 32 receives an impact and is more easily deformed. Therefore, it can prevent more reliably that the structure of resin and a fiber changes within the monocoque part 25. FIG.
 モノコック部25は、壁部21b,21cのうち左突出部31及び右突出部32との接続部分における壁部21b,21cの厚みが、左突出部31及び右突出部32における壁部21d,21eの厚みよりも大きい。 In the monocoque portion 25, the thickness of the wall portions 21 b and 21 c at the connecting portion between the left protruding portion 31 and the right protruding portion 32 of the wall portions 21 b and 21 c is the same as the wall portions 21 d and 21 e in the left protruding portion 31 and the right protruding portion 32. It is larger than the thickness.
 これにより、モノコック部25と左突出部31及び右突出部32との接続部分における強度が、左突出部31及び右突出部32の強度よりも高くなる。よって、停車状態で車両1が左右方向に転倒して左突出部31または右突出部32が変形を生じた際に、モノコック部25の内部で樹脂及び繊維の構造が変化することをより確実に防止できる。 Thus, the strength of the connecting portion between the monocoque portion 25 and the left protruding portion 31 and the right protruding portion 32 is higher than the strength of the left protruding portion 31 and the right protruding portion 32. Therefore, when the vehicle 1 falls in the left-right direction in a stopped state and the left projecting portion 31 or the right projecting portion 32 is deformed, the structure of the resin and fiber is more reliably changed inside the monocoque portion 25. Can be prevented.
 左突出部31及び右突出部32は、車両1の前後方向において、左突出部31及び右突出部32の中央がモノコック部25の中央よりも後方に位置するように設けられている。 The left projecting portion 31 and the right projecting portion 32 are provided so that the centers of the left projecting portion 31 and the right projecting portion 32 are located behind the center of the monocoque portion 25 in the longitudinal direction of the vehicle 1.
 傾斜姿勢で旋回する車両1が停車状態で左右方向に転倒する際には、車両1の後部が路面等に接触して衝撃を受けやすい。そのため、上述の構成のように、左突出部31及び右突出部32を、車両1の前後方向において、左突出部31及び右突出部32の中央がモノコック部25の中央よりも後方に位置するように設けることにより、車両1が左右方向に転倒した際に、左突出部31または右突出部32によって、より確実に衝撃を吸収することができる。 When the vehicle 1 turning in an inclined posture falls in the left-right direction when the vehicle is stopped, the rear portion of the vehicle 1 comes into contact with the road surface or the like and is easily affected. Therefore, as in the configuration described above, the left projecting portion 31 and the right projecting portion 32 are arranged such that the center of the left projecting portion 31 and the right projecting portion 32 is located behind the center of the monocoque portion 25 in the longitudinal direction of the vehicle 1. By providing in this way, when the vehicle 1 falls in the left-right direction, the left projecting portion 31 or the right projecting portion 32 can absorb the impact more reliably.
 (実施形態2)
 図6は、実施形態2に係る車両のリア構造体120における構造体本体121の概略構成を、車両の左右方向の断面で見た断面図である。この実施形態2におけるリア構造体120の構成は、モノコック部に厚肉部を設ける代わりに、モノコック部125の内方の空間部125bと左突出部131の内方の空間部131bと右突出部132の内方の空間部132bとが区画されている点で、実施形態1におけるリア構造体20の構成とは異なる。以下では、実施形態1と同一の構成については同一の符号を付して説明を省略し、実施形態1と異なる部分についてのみ説明する。
(Embodiment 2)
FIG. 6 is a cross-sectional view of the schematic configuration of the structure main body 121 in the vehicle rear structure 120 according to the second embodiment as seen in a cross section in the left-right direction of the vehicle. The structure of the rear structure 120 in the second embodiment is that instead of providing a thick portion in the monocoque portion, the inner space portion 125b of the monocoque portion 125, the inner space portion 131b of the left protruding portion 131, and the right protruding portion. It differs from the configuration of the rear structure 20 in the first embodiment in that the inner space 132b of the 132 is partitioned. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only portions different from those in the first embodiment are described.
 図6に示すように、リア構造体120の構造体本体121は、モノコック部125と、左突出部131と、右突出部132とを有する。モノコック部125は、車両の左右方向において、構造体本体121の中央に配置されている。左突出部131は、車両の左右方向において、モノコック部125に対して左方に配置されている。右突出部132は、車両の左右方向において、モノコック部125に対して右方に配置されている。 As shown in FIG. 6, the structure main body 121 of the rear structure 120 includes a monocoque part 125, a left protruding part 131, and a right protruding part 132. The monocoque part 125 is disposed at the center of the structure main body 121 in the left-right direction of the vehicle. The left protruding portion 131 is disposed on the left side with respect to the monocoque portion 125 in the left-right direction of the vehicle. The right protrusion 132 is disposed to the right of the monocoque portion 125 in the left-right direction of the vehicle.
 モノコック部125、左突出部131、及び右突出部132は、一体に形成されている。モノコック部125、左突出部131、及び右突出部132は、例えば炭素繊維によって樹脂(例えば、エポキシ樹脂、ビニルエステル、フェノール樹脂、ポリアミド、ポリプロピレン、ポリフェニレンサルファイドなど)が強化された炭素繊維強化樹脂を含む材料によって構成されている。前記炭素繊維は、繊維同士が編まれていてもよいし、編まれていない状態であってもよい。また、前記炭素繊維は、所定長さ(例えば1mm)以上、連続した繊維であってもよいし、不連続繊維であってもよい。前記炭素繊維として、連続した繊維及び不連続繊維を用いてもよい。 The monocoque portion 125, the left protruding portion 131, and the right protruding portion 132 are integrally formed. The monocoque portion 125, the left protruding portion 131, and the right protruding portion 132 are made of carbon fiber reinforced resin in which a resin (for example, epoxy resin, vinyl ester, phenol resin, polyamide, polypropylene, polyphenylene sulfide, etc.) is reinforced with carbon fiber, for example. It is comprised by the material to contain. The carbon fibers may be knitted or may not be knitted. The carbon fiber may be a continuous fiber or a discontinuous fiber having a predetermined length (for example, 1 mm) or more. A continuous fiber and a discontinuous fiber may be used as the carbon fiber.
 モノコック部125は、壁部125aによって構成されている。モノコック部125には、壁部125aの内方に空間部125bが形成されている。モノコック部125は、車両の左右方向の断面で見て、壁部125aによって構成された閉断面を有する。具体的には、モノコック部125を構成する壁部125aは、車両の上下方向に延びる縦壁部125cと、車両の左右方向に延びる横壁部125dとを有する。よって、モノコック部125は、車体の一部を構成可能な強度を有する。 The monocoque part 125 is constituted by a wall part 125a. In the monocoque part 125, a space part 125b is formed inward of the wall part 125a. The monocoque portion 125 has a closed cross section formed by a wall portion 125a when viewed in a cross section in the left-right direction of the vehicle. Specifically, the wall part 125a which comprises the monocoque part 125 has the vertical wall part 125c extended in the up-down direction of a vehicle, and the horizontal wall part 125d extended in the left-right direction of a vehicle. Therefore, the monocoque part 125 has a strength capable of constituting a part of the vehicle body.
 左突出部131及び右突出部132は、モノコック部125を構成する壁部125aよりも薄い壁部131a,132a(外壁)によって構成されている。壁部131a,132aは、車両の左右方向の断面で見て、U字状に形成されている。壁部131a,132aは、壁部125aのうち車両の左右方向における両側に位置する縦壁部125cとの間にそれぞれ空間部131b,132bを構成するように、縦壁部125cに対して一体に形成されている。すなわち、左突出部131及び右突出部132は、車両の左右方向において、モノコック部125の縦壁部125cから車両の外方に向かって突出している。左突出部131及び右突出部132には、壁部131a,132aの内方に空間部131b,132bが形成されている。 The left protruding portion 131 and the right protruding portion 132 are configured by wall portions 131a and 132a (outer walls) that are thinner than the wall portion 125a constituting the monocoque portion 125. The walls 131a and 132a are formed in a U shape when viewed in a cross section in the left-right direction of the vehicle. The wall portions 131a and 132a are integrated with the vertical wall portion 125c so as to form space portions 131b and 132b, respectively, between the wall portion 125a and the vertical wall portion 125c located on both sides in the left-right direction of the vehicle. Is formed. That is, the left protruding portion 131 and the right protruding portion 132 protrude outward from the vertical wall portion 125c of the monocoque portion 125 in the left-right direction of the vehicle. In the left protrusion 131 and the right protrusion 132, spaces 131b and 132b are formed inward of the walls 131a and 132a.
 空間部131b,132b内には、発泡体133,134(衝撃吸収部材)が配置されている。壁部131a,132aは、発泡体133,134を囲むように形成されている。車両が停車状態で左方向に転倒した際に左突出部131に衝撃が加わると、発泡体133は、容易に変形を生じる。一方、車両が停車状態で右方向に転倒した際に右突出部132に衝撃が加わると、発泡体134は、容易に変形を生じる。これにより、前記衝撃が左突出部131または右突出部132に加わった際に、より効果的に前記衝撃を吸収することができる。発泡体133,134は、リア構造体120を一体で成形する際に、左突出部131及び右突出部132を形成するための型としても利用される。 Foams 133 and 134 (impact absorbing members) are arranged in the space portions 131b and 132b. The walls 131a and 132a are formed so as to surround the foams 133 and 134. When an impact is applied to the left protrusion 131 when the vehicle falls to the left while the vehicle is stopped, the foam 133 easily deforms. On the other hand, when an impact is applied to the right protrusion 132 when the vehicle falls to the right while the vehicle is stopped, the foam 134 easily deforms. Accordingly, when the impact is applied to the left protrusion 131 or the right protrusion 132, the impact can be absorbed more effectively. The foams 133 and 134 are also used as a mold for forming the left protrusion 131 and the right protrusion 132 when the rear structure 120 is integrally formed.
 なお、リア構造体120の詳しい製造方法については説明を省略するが、リア構造体120を成形する際には、モノコック部125の空間部125bを形成するための内型、左突出部131及び右突出部132を形成するための発泡材料を、複数の炭素繊維シート(炭素繊維によってシート状に形成された部材)によって覆う。それらをプレス可能な外型内に配置した状態で、該外型内に液体状の樹脂を射出しつつ該外型によって圧力を加えることにより、図4に示すようなリア構造体120の形状が得られる。前記発泡材料は、前記外型内に射出した樹脂の熱等によって発泡して、発泡体133,134になる。 Although a detailed description of the manufacturing method of the rear structure 120 is omitted, when the rear structure 120 is formed, an inner mold, a left protruding portion 131, and a right portion for forming the space portion 125b of the monocoque portion 125 are formed. The foam material for forming the protrusion 132 is covered with a plurality of carbon fiber sheets (members formed in a sheet shape with carbon fibers). In a state where they are arranged in a pressable outer mold, pressure is applied by the outer mold while injecting a liquid resin into the outer mold, whereby the shape of the rear structure 120 as shown in FIG. 4 is obtained. can get. The foam material is foamed by the heat of the resin injected into the outer mold and becomes foams 133 and 134.
 上述の構成により、車両1が停車状態で左右方向に転倒した際に、左突出部131または右突出部132に衝撃が加わると、衝撃が加わった部分が変形することにより、前記衝撃を吸収する。これにより、車両の車体の一部を構成するモノコック部125の内部で樹脂及び繊維の構造が変化することを防止できる。 With the above-described configuration, when an impact is applied to the left projecting portion 131 or the right projecting portion 132 when the vehicle 1 falls in the left-right direction while the vehicle 1 is stopped, the impacted portion is deformed to absorb the impact. . Thereby, it can prevent that the structure of resin and a fiber changes within the monocoque part 125 which comprises a part of vehicle body of a vehicle.
 左突出部131及び右突出部132は、壁部131a,132aの内方に発泡体133,134を有する。これにより、傾斜姿勢で旋回する車両が停車状態で左右方向に転倒した際に、左突出部131内の発泡体133または右突出部132内の発泡体134によって衝撃をより効果的に吸収することができる。よって、モノコック部125の内部で樹脂及び繊維の構造が変化することをより確実に防止できる。 The left protruding portion 131 and the right protruding portion 132 have foams 133 and 134 inside the wall portions 131a and 132a. Thus, when a vehicle turning in an inclined posture falls in the left-right direction while stopped, the foam 133 in the left protruding portion 131 or the foam 134 in the right protruding portion 132 more effectively absorbs the impact. Can do. Therefore, it can prevent more reliably that the structure of resin and a fiber changes within the monocoque part 125. FIG.
 しかも、モノコック部125は、車両の左右方向の断面で見て、壁部125aによって構成された閉断面を有するため、車体の一部を構成可能な強度を有する。よって、上述のような車両の左右方向の転倒によって左突出部131または右突出部132に衝撃が加わって、衝撃が加わった部分の内部で樹脂及び繊維の構造が変化した場合でも、モノコック部125によって、車体の所定の強度及び性能を確保することができる。 Moreover, since the monocoque part 125 has a closed cross section formed by the wall part 125a when viewed in the cross section in the left-right direction of the vehicle, the monocoque part 125 has a strength capable of constituting a part of the vehicle body. Therefore, even when an impact is applied to the left projecting portion 131 or the right projecting portion 132 by the above-described vehicle overturning in the left-right direction, and the structure of the resin and fiber changes inside the impacted portion, the monocoque portion 125 Thus, the predetermined strength and performance of the vehicle body can be ensured.
 モノコック部125は、壁部125aのうち左突出部131との接続部分における壁部125aの厚みが、左突出部131における壁部131aの厚みよりも大きい。モノコック部125は、壁部125aのうち右突出部132との接続部分における壁部125aの厚みが、右突出部132における壁部132aの厚みよりも大きい。 The thickness of the wall part 125a in the connection part with the left protrusion part 131 among the wall parts 125a is larger than the thickness of the wall part 131a in the left protrusion part 131. In the monocoque portion 125, the thickness of the wall portion 125 a in the connection portion with the right protruding portion 132 in the wall portion 125 a is larger than the thickness of the wall portion 132 a in the right protruding portion 132.
 これにより、モノコック部125と左突出部131との接続部分における強度が、左突出部131の壁部131aの強度よりも高くなる。また、モノコック部125と右突出部132との接続部分における強度が、右突出部132の壁部132aの強度よりも高くなる。よって、車両が左右方向に転倒して左突出部131または右突出部132が変形を生じた場合でも、モノコック部125の内部で樹脂及び繊維の構造が変化することをより確実に防止できる。 Thereby, the strength of the connecting portion between the monocoque portion 125 and the left protruding portion 131 is higher than the strength of the wall portion 131a of the left protruding portion 131. In addition, the strength at the connection portion between the monocoque portion 125 and the right protruding portion 132 is higher than the strength of the wall portion 132 a of the right protruding portion 132. Therefore, even when the vehicle falls in the left-right direction and the left protruding portion 131 or the right protruding portion 132 is deformed, it is possible to more reliably prevent the resin and fiber structure from changing inside the monocoque portion 125.
 モノコック部125の壁部125aは、車両の上下方向に延びる縦壁部125cを含む。左突出部131及び右突出部132は、車両の左右方向において、モノコック部125の縦壁部125cから車両の外方に向かって突出する。 The wall portion 125a of the monocoque portion 125 includes a vertical wall portion 125c extending in the vertical direction of the vehicle. The left protruding portion 131 and the right protruding portion 132 protrude outward from the vertical wall portion 125c of the monocoque portion 125 in the left-right direction of the vehicle.
 これにより、モノコック部125の剛性を向上できるとともに、傾斜姿勢で旋回する車両が停車状態で左右方向に転倒して左突出部131または右突出部132が壊れた場合でも、モノコック部125に与える影響を極力抑えることができる。 As a result, the rigidity of the monocoque part 125 can be improved, and even when the vehicle turning in an inclined posture falls to the left and right in a stationary state and the left projecting part 131 or the right projecting part 132 is broken, the influence on the monocoque part 125 is exerted. Can be suppressed as much as possible.
 (その他の実施形態)
 以上、本発明の実施の形態を説明したが、上述した実施の形態は本発明を実施するための例示に過ぎない。よって、上述した実施の形態に限定されることなく、その趣旨を逸脱しない範囲内で上述した実施の形態を適宜変形して実施することが可能である。
(Other embodiments)
While the embodiments of the present invention have been described above, the above-described embodiments are merely examples for carrying out the present invention. Therefore, the present invention is not limited to the above-described embodiment, and the above-described embodiment can be appropriately modified and implemented without departing from the spirit of the invention.
 前記各実施形態では、車体2はフレーム10及びリア構造体20,120を含む。しかしながら、車体は、モノコック部のみによって構成されていてもよい。 In each of the above embodiments, the vehicle body 2 includes the frame 10 and the rear structures 20 and 120. However, the vehicle body may be configured only by the monocoque portion.
 前記各実施形態では、リアフレームがモノコック構造のリア構造体20,120によって構成されている。しかしながら、車体の他の部品をモノコック構造によって構成してもよい。例えば、リア構造体と同様のモノコック構造を有するフロント構造体を用いて、メインフレームを構成してもよい。 In each of the above-described embodiments, the rear frame is configured by the monocoque structure rear structures 20 and 120. However, other parts of the vehicle body may be configured with a monocoque structure. For example, the main frame may be configured using a front structure having a monocoque structure similar to the rear structure.
 前記各実施形態では、リア構造体20,120は、炭素繊維によって樹脂が強化された炭素繊維強化樹脂を含む材料によって構成されている。しかしながら、リア構造体を、炭素繊維以外の繊維(例えば、アラミド繊維、ポリエチレン繊維、ガラス繊維など)によって樹脂が強化された繊維強化樹脂を含む材料によって構成してもよい。また、前記各実施形態では、リア構造体20,120は、エポキシ樹脂、ビニルエステル、フェノール樹脂、ポリアミド、ポリプロピレン、ポリフェニレンサルファイドなどの樹脂によって構成されている。樹脂は、繊維によって強化可能な樹脂であれば、他の種類の樹脂であってもよい。 In each of the embodiments described above, the rear structures 20 and 120 are made of a material including a carbon fiber reinforced resin in which the resin is reinforced with carbon fibers. However, the rear structure may be made of a material containing a fiber reinforced resin in which the resin is reinforced by fibers other than carbon fibers (for example, aramid fibers, polyethylene fibers, glass fibers, etc.). In the above embodiments, the rear structures 20 and 120 are made of a resin such as an epoxy resin, a vinyl ester, a phenol resin, polyamide, polypropylene, or polyphenylene sulfide. The resin may be other types of resins as long as the resin can be reinforced with fibers.
 前記各実施形態では、左突出部31,131及び右突出部32,132は、モノコック部25,125と同じ炭素繊維強化樹脂を含む材料によって構成されている。しかしながら、左突出部及び右突出部は、モノコック部よりも強度が低くなるように、炭素繊維の繊維方向を、モノコック部における炭素繊維の繊維方向と異なる方向にしてもよい。左突出部及び右突出部における炭素繊維の量を、モノコック部における炭素繊維の量よりも少なくしてもよい。左突出部及び右突出部における炭素繊維の長さを、モノコック部における炭素繊維の長さよりも短くしてもよい。左突出部及び右突出部における繊維を、炭素繊維以外の繊維にしてもよい。左突出部及び右突出部は繊維を含まなくてもよい。 In each of the above embodiments, the left protrusions 31 and 131 and the right protrusions 32 and 132 are made of the same material containing carbon fiber reinforced resin as the monocoque parts 25 and 125. However, the fiber direction of the carbon fiber may be different from the fiber direction of the carbon fiber in the monocoque part so that the left projecting part and the right projecting part have lower strength than the monocoque part. You may make the quantity of the carbon fiber in a left protrusion part and a right protrusion part smaller than the quantity of the carbon fiber in a monocoque part. You may make the length of the carbon fiber in a left protrusion part and a right protrusion part shorter than the length of the carbon fiber in a monocoque part. You may make the fiber in a left protrusion part and a right protrusion part into fibers other than carbon fiber. The left protrusion and the right protrusion may not contain fibers.
 前記各実施形態における炭素繊維強化樹脂は、厚み方向に複数、積層された状態で、樹脂によって結合された炭素繊維によって強化されている。しかしながら、前記炭素繊維強化樹脂は、炭素繊維によって強化された炭素繊維強化樹脂層と、発泡合成樹脂を含む発泡樹脂層とが厚み方向に積層された複合材料によって構成されていてもよい。この複合材料は、一対の前記炭素繊維強化樹脂層を有し、それらの炭素繊維強化樹脂層の間に、前記発泡樹脂層が配置された材料である。前記複合材料を用いることにより、炭素繊維強化樹脂層のみを用いる場合に比べて、炭素繊維強化樹脂を含む各部材の軽量化を図れるとともに、前記各部材の厚みを容易に変えることができる。なお、前記発泡樹脂層の前記発泡合成樹脂として、振動を吸収可能な樹脂を用いてもよい。 The carbon fiber reinforced resin in each of the above embodiments is reinforced with carbon fibers bonded together by a resin in a state where a plurality of carbon fiber reinforced resins are laminated in the thickness direction. However, the carbon fiber reinforced resin may be composed of a composite material in which a carbon fiber reinforced resin layer reinforced with carbon fibers and a foamed resin layer containing a foamed synthetic resin are laminated in the thickness direction. This composite material has a pair of carbon fiber reinforced resin layers, and the foamed resin layer is disposed between the carbon fiber reinforced resin layers. By using the composite material, the weight of each member including the carbon fiber reinforced resin can be reduced and the thickness of each member can be easily changed as compared with the case where only the carbon fiber reinforced resin layer is used. In addition, you may use resin which can absorb a vibration as the said foaming synthetic resin of the said foaming resin layer.
 前記各実施形態では、左突出部31,131及び右突出部32,132を構成する壁部21d,21e,131a,132aの厚みは均一である。しかしながら、車両が停車状態で左右方向に転倒した際の衝撃を左突出部または右突出部が容易に吸収可能なように、左突出部及び右突出部を構成する壁部の厚みを、部分的に薄くしてもよい。左突出部及び右突出部に、切り欠きまたは穴などの脆弱部が設けられていてもよい。 In the above-described embodiments, the wall portions 21d, 21e, 131a, and 132a constituting the left protruding portions 31 and 131 and the right protruding portions 32 and 132 have a uniform thickness. However, the wall thickness of the left protrusion and the right protrusion is partially adjusted so that the left protrusion or the right protrusion can easily absorb the impact when the vehicle falls in the left-right direction when the vehicle is stopped. It may be thinned. The left protruding portion and the right protruding portion may be provided with a weak portion such as a notch or a hole.
 前記実施形態1では、モノコック部25を構成する壁部21b,21cに、左突出部31及び右突出部32と隣接する位置に厚肉部27,28が設けられている。しかしながら、モノコック部を構成する壁部全体の厚みを、左突出部及び右突出部を構成する壁部の厚みよりも大きくしてもよい。モノコック部の強度を向上することができるとともに、車両が停車状態で左右方向に転倒した際の衝撃によって左突出部または右突出部を容易に変形可能な位置であれば、モノコック部の壁部のうち少なくとも一方において、厚肉部は、左突出部及び右突出部と隣接する位置以外に設けられていてもよい。 In the first embodiment, the wall portions 21b and 21c constituting the monocoque portion 25 are provided with the thick portions 27 and 28 at positions adjacent to the left protruding portion 31 and the right protruding portion 32, respectively. However, you may make the thickness of the whole wall part which comprises a monocoque part larger than the thickness of the wall part which comprises a left protrusion part and a right protrusion part. The strength of the monocoque part can be improved, and if the left projecting part or the right projecting part can be easily deformed by an impact when the vehicle falls in the left-right direction when the vehicle is stopped, In at least one of them, the thick part may be provided in a position other than the position adjacent to the left protrusion and the right protrusion.
 前記実施形態1では、モノコック部25を構成する壁部21b,21cに、モノコック部25の内方に向かって突出するように厚肉部27,28が設けられている。しかしながら、モノコック部の壁部のうち少なくとも一方において、厚肉部は、外方に向かって突出するように設けられていてもよい。 In the first embodiment, the thick portions 27 and 28 are provided on the wall portions 21b and 21c constituting the monocoque portion 25 so as to protrude inward of the monocoque portion 25. However, in at least one of the wall portions of the monocoque portion, the thick portion may be provided so as to protrude outward.
 前記実施形態1では、モノコック部25の内方の空間部25aは空洞であるが、空間部内に発泡体等の衝撃吸収部材を配置してもよい。 In the first embodiment, the inner space portion 25a of the monocoque portion 25 is hollow, but an impact absorbing member such as foam may be disposed in the space portion.
 前記実施形態1では、モノコック部25の下部を構成する壁部21cと左突出部31を構成する壁部21dとの間に段差部21fが設けられている。モノコック部25の下部を構成する壁部21cと右突出部32を構成する壁部21eとの間に段差部21gが設けられている。しかしながら、モノコック部の壁部と左突出部及び右突出部の壁部との間に段差部が設けられていなくてもよい。すなわち、構造体本体は、車両の左右方向の断面で見て、楕円状に形成されていてもよい。実施形態2の構成も同様に、構造体本体は、楕円状に形成されていてもよい。 In the first embodiment, the step portion 21f is provided between the wall portion 21c constituting the lower portion of the monocoque portion 25 and the wall portion 21d constituting the left protruding portion 31. A step portion 21g is provided between the wall portion 21c constituting the lower portion of the monocoque portion 25 and the wall portion 21e constituting the right protruding portion 32. However, the stepped portion may not be provided between the wall portion of the monocoque portion and the wall portions of the left protruding portion and the right protruding portion. That is, the structure body may be formed in an elliptical shape when viewed in a cross section in the left-right direction of the vehicle. Similarly, the structure body of the second embodiment may be formed in an elliptical shape.
 前記実施形態2では、左突出部131の空間部131b内、及び、右突出部132の空間部132b内に、それぞれ発泡体133,134が配置されている。しかしながら、左突出部の空間部及び右突出部の空間部のうち、一方の突出部の空間部内のみに発泡体を配置してもよい。突出部の空間部内に配置される部材は、突出部が衝撃を受けた際に衝撃を吸収可能な材料からなる部材であれば、発泡体以外の部材であってもよい。突出部の空間部は、その一部または全体が空洞であってもよい。 In the second embodiment, the foams 133 and 134 are disposed in the space 131b of the left protrusion 131 and in the space 132b of the right protrusion 132, respectively. However, the foam may be disposed only in the space of one of the left protruding portion and the right protruding portion. The member disposed in the space of the protrusion may be a member other than a foam as long as the member is made of a material that can absorb an impact when the protrusion receives an impact. The space portion of the protruding portion may be partially or entirely hollow.
 前記実施形態2では、モノコック部125を構成する壁部125aの厚みは、均一である。しかしながら、モノコック部の強度を向上するために、壁部の厚みを部分的に厚くしてもよい。 In the second embodiment, the thickness of the wall portion 125a constituting the monocoque portion 125 is uniform. However, in order to improve the strength of the monocoque part, the wall part may be partially thickened.
 前記実施形態では、車両1の例として自動二輪車を説明したが、車両は三輪車など、傾斜姿勢で旋回する傾斜車両であれば、どのような構成の車両であってもよい。 In the above-described embodiment, a motorcycle has been described as an example of the vehicle 1. However, the vehicle may be a vehicle having any configuration as long as it is an inclined vehicle that turns in an inclined posture, such as a tricycle.
 本発明は、傾斜姿勢で旋回する傾斜車両の車体に適用可能である。 The present invention can be applied to a vehicle body of an inclined vehicle that turns in an inclined posture.
1 車両(傾斜車両)
2 車体
20、120 リア構造体
20a 空間部
21、121 構造体本体
21a、21b、21c、125a 壁部
21d、21e、131a、132a 壁部(外壁)
25、125 モノコック部
25a、31a、32a、125b、131b、132b 空間部
27、28 厚肉部
31、131 左突出部
32、132 右突出部
125c 縦壁部
125d 横壁部
133、134 発泡体
G 地面
1 vehicle (inclined vehicle)
2 Car body 20, 120 Rear structure 20a Space part 21, 121 Structure body 21a, 21b, 21c, 125a Wall part 21d, 21e, 131a, 132a Wall part (outer wall)
25, 125 Monocoque part 25a, 31a, 32a, 125b, 131b, 132b Space part 27, 28 Thick part 31, 131 Left protrusion part 32, 132 Right protrusion part 125c Vertical wall part 125d Horizontal wall part 133, 134 Foam G Ground

Claims (6)

  1.  傾斜姿勢で旋回する傾斜車両であって、
     左方向に旋回する際に左方向に傾斜し、右方向に旋回する際に右方向に傾斜する車体を備え、
     前記車体は、
      繊維強化樹脂を含む材料からなる壁部を備えたモノコック構造を有し、且つ、前記車体の少なくとも一部を構成するモノコック部と、
      前記モノコック部から前記傾斜車両の左方向に突出し、且つ、外表面が前記モノコック部の外表面と連続するように前記モノコック部と一体に形成され、前記モノコック部の強度に比べて低い強度を有する左突出部と、
      前記モノコック部から前記傾斜車両の右方向に突出し、且つ、外表面が前記モノコック部の外表面と連続するように前記モノコック部と一体に形成され、前記モノコック部の強度に比べて低い強度を有する右突出部とを有する、
    傾斜車両。
    An inclined vehicle that turns in an inclined posture,
    A vehicle body that tilts left when turning left and leans right when turning right,
    The vehicle body is
    A monocoque part having a monocoque structure including a wall part made of a material containing a fiber reinforced resin, and constituting at least a part of the vehicle body; and
    The monocoque part is formed integrally with the monocoque part so as to protrude from the monocoque part to the left side of the inclined vehicle and the outer surface is continuous with the outer surface of the monocoque part, and has a lower strength than the strength of the monocoque part. A left protrusion,
    The monocoque part is formed integrally with the monocoque part so as to protrude rightward from the monocoque part and the outer surface is continuous with the outer surface of the monocoque part, and has a lower strength than the strength of the monocoque part. Having a right protrusion,
    Inclined vehicle.
  2.  請求項1に記載の傾斜車両において、
     前記左突出部及び前記右突出部は、それぞれ、前記車体の外表面の一部を構成する外壁と、前記外壁の内方に位置する空間部とを有する、傾斜車両。
    The inclined vehicle according to claim 1,
    Each of the left projecting portion and the right projecting portion has an outer wall that constitutes a part of the outer surface of the vehicle body, and a space portion that is located inward of the outer wall.
  3.  請求項1に記載の傾斜車両において、
     前記左突出部及び前記右突出部は、それぞれ、前記車体の外表面の一部を構成する外壁と、前記外壁の内方に位置する衝撃吸収部材とを有する、傾斜車両。
    The inclined vehicle according to claim 1,
    Each of the left projecting portion and the right projecting portion includes an outer wall that constitutes a part of the outer surface of the vehicle body, and an impact absorbing member positioned inward of the outer wall.
  4.  請求項2または3に記載の傾斜車両において、
     前記モノコック部は、前記壁部のうち前記左突出部との接続部分における壁部の厚みが、前記左突出部における前記外壁の厚みよりも大きく、前記壁部のうち前記右突出部との接続部分における壁部の厚みが、前記右突出部における前記外壁の厚みよりも大きい、傾斜車両。
    The inclined vehicle according to claim 2 or 3,
    The monocoque portion has a wall thickness at a connection portion with the left protruding portion of the wall portion that is larger than a thickness of the outer wall at the left protruding portion, and the wall portion is connected to the right protruding portion. The inclined vehicle in which the thickness of the wall portion in the portion is larger than the thickness of the outer wall in the right protruding portion.
  5.  請求項1から4のいずれか一つに記載の傾斜車両において、
     前記モノコック部の前記壁部は、前記傾斜車両の上下方向に延びる縦壁部を含み、
     前記左突出部及び前記右突出部は、前記傾斜車両の左右方向において、それぞれ、前記モノコック部の前記縦壁部から前記傾斜車両の外方に向かって突出する、傾斜車両。
    The inclined vehicle according to any one of claims 1 to 4,
    The wall portion of the monocoque portion includes a vertical wall portion extending in the vertical direction of the inclined vehicle,
    The left projecting portion and the right projecting portion project from the vertical wall portion of the monocoque portion toward the outside of the tilted vehicle in the left-right direction of the tilted vehicle, respectively.
  6.  請求項1から5のいずれか一つに記載の傾斜車両において、
     前記左突出部及び前記右突出部は、前記傾斜車両の前後方向において、前記左突出部及び前記右突出部の中央が前記モノコック部の中央よりも後方に位置するように設けられている、傾斜車両。
    In the inclined vehicle according to any one of claims 1 to 5,
    The left projecting part and the right projecting part are provided so that the center of the left projecting part and the right projecting part is located behind the center of the monocoque part in the longitudinal direction of the inclined vehicle. vehicle.
PCT/JP2018/010919 2017-03-21 2018-03-20 Tilting vehicle WO2018174035A1 (en)

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