WO2018174035A1 - Véhicule inclinable - Google Patents

Véhicule inclinable Download PDF

Info

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
Authority
WO
WIPO (PCT)
Prior art keywords
monocoque
vehicle
wall
protruding portion
projecting
Prior art date
Application number
PCT/JP2018/010919
Other languages
English (en)
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/ja
Priority to TW107109613A priority patent/TWI657957B/zh
Publication of WO2018174035A1 publication Critical patent/WO2018174035A1/fr

Links

Images

Definitions

  • 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.

Landscapes

  • Body Structure For Vehicles (AREA)

Abstract

Un véhicule inclinable selon l'invention tourne avec une orientation inclinée, une configuration qui peut être rendue encore moins lourde étant obtenue. Le véhicule inclinable comprend un corps qui s'incline vers la gauche lorsqu'il tourne vers la gauche et qui s'incline vers la droite lorsqu'il tourne vers la droite. Le corps a une structure monocoque pourvue d'une section paroi 21a constituée d'un matériau contenant une résine renforcée par des fibres de carbone, et le corps a également une section monocoque 25 constituant au moins une partie du corps, et une section saillante gauche 31 et une section saillante droite 32 qui font saillie le long d'une direction latérale d'un véhicule 1 à partir de la section monocoque 25 vers l'extérieur du véhicule 1, et qui sont formées d'un seul tenant avec la section monocoque 25. La résistance de la section saillante gauche 31 et de la section saillante droite 32, qui font saillie le long de la direction latérale du véhicule 1 depuis la section monocoque 25 vers l'extérieur du véhicule 1, est inférieure à la résistance de la section monocoque 25.
PCT/JP2018/010919 2017-03-21 2018-03-20 Véhicule inclinable WO2018174035A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019507675A JPWO2018174035A1 (ja) 2017-03-21 2018-03-20 傾斜車両
TW107109613A TWI657957B (zh) 2017-03-21 2018-03-21 傾斜車輛

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017055005 2017-03-21
JP2017-055005 2017-03-21

Publications (1)

Publication Number Publication Date
WO2018174035A1 true WO2018174035A1 (fr) 2018-09-27

Family

ID=63585538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/010919 WO2018174035A1 (fr) 2017-03-21 2018-03-20 Véhicule inclinable

Country Status (3)

Country Link
JP (1) JPWO2018174035A1 (fr)
TW (1) TWI657957B (fr)
WO (1) WO2018174035A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0752838A (ja) * 1993-08-17 1995-02-28 Mitsubishi Chem Corp モノコック構造の二輪または三輪自動車の車体
JPH07215256A (ja) * 1994-02-07 1995-08-15 Yamaha Motor Co Ltd 自動二輪車のリヤボディ構造
JP2006021761A (ja) * 2004-07-07 2006-01-26 Buell Motorcycle Co 自動二輪車用保護装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013200699A1 (de) * 2013-01-18 2014-07-24 Bayerische Motoren Werke Aktiengesellschaft Schalenstruktur mit Krafteinleitungspunkt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0752838A (ja) * 1993-08-17 1995-02-28 Mitsubishi Chem Corp モノコック構造の二輪または三輪自動車の車体
JPH07215256A (ja) * 1994-02-07 1995-08-15 Yamaha Motor Co Ltd 自動二輪車のリヤボディ構造
JP2006021761A (ja) * 2004-07-07 2006-01-26 Buell Motorcycle Co 自動二輪車用保護装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
10 February 2017 (2017-02-10), Retrieved from the Internet <URL:http://www.virginducati.com/models/models2017/models2017-superbike1299superleggera> [retrieved on 20180528] *
17 November 2016 (2016-11-17), Retrieved from the Internet <URL:https://rocketnews24.com/2016/11/17/827076> [retrieved on 20180531] *

Also Published As

Publication number Publication date
JPWO2018174035A1 (ja) 2020-01-23
TW201838861A (zh) 2018-11-01
TWI657957B (zh) 2019-05-01

Similar Documents

Publication Publication Date Title
KR101806722B1 (ko) 충격흡수 유닛 및 그 제조방법, 멤버 연결구조
JP5924321B2 (ja) 車両の骨格構造
JP5958826B2 (ja) 背もたれ用フレーム構造体およびその製造方法
JP2015504812A (ja) 中空断面を有する繊維複合補強材が内蔵されているバンパーバックビーム及びこれを有するバンパー
WO2012033000A1 (fr) Structure pour intérieur de véhicule à passagers et procédé de fabrication de cet intérieur
JP5862555B2 (ja) 自動車の車体構造
JP4853315B2 (ja) 車体骨格構造
JP2008155699A (ja) 車体骨格構造
JP6217394B2 (ja) 車両用シートクッションフレームおよびその製造方法
JP4685818B2 (ja) バンパリインフォースメント支持構造
WO2018174035A1 (fr) Véhicule inclinable
KR102548477B1 (ko) 복합재 센터플로어
JP5922540B2 (ja) 自動車フロアの製造方法
JP7149928B2 (ja) 傾斜車両
KR20190004440A (ko) 차량용 센터 필러 유닛
JP7249939B2 (ja) 車両
KR20170019039A (ko) 차량용 시트백 패널
WO2012153601A1 (fr) Corps structural avant de carrosserie de véhicule
KR101278901B1 (ko) 복판형 시트 백 프레임
JP7158374B2 (ja) 傾斜車両
US9840285B2 (en) Front vehicle body and method of fabricating front vehicle body
WO2024201769A1 (fr) Montant milieu
JP5970315B2 (ja) 車両
JP5773237B2 (ja) 乗用車車室用構造体およびその製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18770909

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019507675

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18770909

Country of ref document: EP

Kind code of ref document: A1