WO2014184848A1 - Automatic two-wheeled vehicle - Google Patents

Automatic two-wheeled vehicle Download PDF

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Publication number
WO2014184848A1
WO2014184848A1 PCT/JP2013/063308 JP2013063308W WO2014184848A1 WO 2014184848 A1 WO2014184848 A1 WO 2014184848A1 JP 2013063308 W JP2013063308 W JP 2013063308W WO 2014184848 A1 WO2014184848 A1 WO 2014184848A1
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WO
WIPO (PCT)
Prior art keywords
load absorbing
absorbing member
load
vehicle
motorcycle according
Prior art date
Application number
PCT/JP2013/063308
Other languages
French (fr)
Japanese (ja)
Inventor
洋 稲岡
祐一朗 田中
康人 山田
倉田　徳博
山口　宣雄
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to PCT/JP2013/063308 priority Critical patent/WO2014184848A1/en
Publication of WO2014184848A1 publication Critical patent/WO2014184848A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/32—Steering heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J17/00—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for
    • B62J17/02—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for shielding only the rider's front
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K2202/00—Motorised scooters

Definitions

  • the present invention relates to an improvement of a motorcycle including a load absorbing member.
  • a motorcycle includes a head pipe that supports a steering wheel in a freely steerable manner.
  • a connecting member extends in the vehicle width direction from the lower portion of the head pipe, and right and left pad support pipes are extended from the connecting member along the head pipe obliquely upward to the rear, and on the upper portion of the pad supporting pipe, Left and right knee pads are worn.
  • the load absorbing member includes left and right pad support pipes and left and right knee pads that are provided above the left and right pad support pipes and restrict forward movement of the occupant. When the movement of the occupant forward is restricted by the left and right knee pads, the pad support pipe and the knee pads are plastically deformed to absorb load energy.
  • An object of the present invention is to provide a technique capable of downsizing the load absorbing member.
  • a head pipe that pivotally supports a steering wheel that the occupant performs a steering operation, a leg shield that surrounds the head pipe and covers the front of the occupant, and a load applied to the occupant provided on the head pipe
  • a pair of left and right load absorbing members that absorb, a step floor that is provided behind the leg shield and on which the occupant's feet are placed, and a seat that is provided so as to form a straddle space behind the leg shield and on which the occupant sits are provided.
  • the load absorbing member has a cylindrical shape extending in a height direction and an oblique direction.
  • the load absorbing member connects the outer surface and the front surface with a curved surface.
  • the inner surface of the load absorbing member is a curved surface.
  • the load absorbing member is constituted by a plurality of curved surfaces having different curvature radii.
  • the load absorbing member includes a metal member extending in the height direction and a foam material that partially fills the metal member.
  • the load absorbing member is disposed at substantially the same height as the seat.
  • the load absorbing member is provided in a pair of left and right in the vehicle width direction, and the load absorbing members are coupled by a cross member extending in the vehicle width direction.
  • the tip of the cross member is coupled through the opening provided in each of the load absorbing members.
  • the substantially center of the inner surface is coupled by the cross member.
  • the load absorbing member in the vehicle occupant restraint device, has a cylindrical shape extending in the height direction and the oblique direction.
  • the load absorbing member buckles, so that the load energy can be reduced.
  • the longitudinal length can be reduced by extending the load absorbing member vertically. Therefore, it is possible to shorten the vehicle front-rear length of the load absorbing member. As a result, the load absorbing member can be reduced in size.
  • the corner portion is reduced, and the load absorbing member can be further downsized.
  • the corner portion becomes smaller, and the load absorbing member can be further downsized.
  • the load absorbing member is composed of a plurality of curved surfaces having different curvature radii.
  • the width of the load absorbing member can be reduced by forming the load absorbing member formed of a plurality of curved surfaces so that the rear side of the vehicle is squeezed backward as compared to the front. As a result, if the width of the load absorbing member is reduced, the load absorbing member can be further reduced in size.
  • the load absorbing member is made of a foam material that partially fills the metal member.
  • the load absorbing member is disposed at substantially the same height as the seat. Since the load absorbing member and the seat are provided at substantially the same height, the load absorbing member is provided so as to cover the front of the occupant. Therefore, the load absorbing member can effectively limit the movement of the occupant forward of the vehicle.
  • the pair of left and right load absorbing members are joined together by the cross member.
  • the load absorbing member can be reinforced, and when the load is received, the holding of the load absorbing member can be further strengthened. As a result, load energy can be efficiently absorbed by the load absorbing member.
  • the tips of the cross members are joined through the openings provided in the load absorbing member.
  • the coupling length can be increased.
  • the load absorbing members can be more firmly connected.
  • the substantially center of the inner surface is coupled by the cross member. Since the load absorbing member is coupled at substantially the center of the inner surface, the load absorbing member can be further firmly held when a load is received.
  • FIG. 1 is a left side view of a motorcycle according to a first embodiment of the present invention.
  • FIG. 4 is a cross-sectional view taken along line 2-2 of FIG. 3, showing the main part of the motorcycle of FIG.
  • Fig. 2 is a front view showing a main part of the motorcycle with a front cover removed. It is a principal part perspective view of the said motorcycle.
  • FIG. 5 is a view taken in the direction of arrow 5 in FIG. 2, showing a load absorbing member of the motorcycle.
  • FIG. 5 is an operation explanatory diagram of a motorcycle including the load absorbing member.
  • FIG. 6 is a plan view of a main part of a motorcycle according to a second embodiment of the present invention.
  • Fig. 8 is a perspective view of a main part of the motorcycle shown in Fig. 7.
  • a motorcycle 10 includes a front wheel steering unit 15 that supports a front wheel 13 on a body frame 11 so as to be steered, a swing arm 16 that supports a rear wheel 14 so as to swing, a front wheel 13 and a rear wheel.
  • 14 is a so-called unit swing which includes a seat 18 provided between 14 and a vehicle body cover 20 which covers a vehicle body frame 11 which will be described later, and a power unit 17 as a drive source is integrally provided on the swing arm 16.
  • Vehicle is a so-called unit swing which includes a seat 18 provided between 14 and a vehicle body cover 20 which covers a vehicle body frame 11 which will be described later, and a power unit 17 as a drive source is integrally provided on the swing arm 16.
  • the vehicle body frame 11 includes a head pipe 31 that rotatably supports the front wheel steering portion 15, a main frame 32 that extends downward from the head pipe 31 and extends rearwardly, and a vehicle width at a rear end portion of the main frame.
  • the main elements are a cross frame 33 extending leftward and rightward in the direction, a pivot portion 34 extending from the cross frame 33 and swingably supporting the power unit 17, and a seat rail 35 extending diagonally upward from the cross frame 33 and supporting the seat 18. To do.
  • the front wheel steering unit 15 includes a steering shaft 38 that is pivotally supported by the head pipe 31, a handle 37 that is attached to the upper end of the steering shaft 38 and that is operated by the occupant, and that is obliquely forward and downward from the lower end of the steering shaft 38.
  • the front fork 39 is extended, and the front wheel 13 is attached to the lower end of the front fork 39.
  • the vehicle body cover 20 is disposed so as to surround the front wheel steering portion 15 and is attached to the handle 37 above the leg shield 21 and the leg shield 21 that covers the front of the lower limbs of the passenger when the passenger sits on the seat 18.
  • a handle cover 22 that surrounds the handle 37, an under cover 23 that extends rearward from the lower end of the leg shield 21 and covers the main frame 32, and extends upward and rearward from the rear portion of the under cover 23 and below the seat 18. It comprises a side cover 24 that covers the side of the vehicle.
  • the undercover 23 is provided with a step floor 25 on which an occupant places his / her feet.
  • the leg shield 21 is formed by aligning a front cover 27 covering the vehicle front side of the head pipe 31 and a rear cover 28 covering the vehicle rear side of the head pipe 31 in the vehicle front-rear direction.
  • a straddling space 29 in which an occupant can straddle is formed behind the leg shield 21, and a seat 18 is provided behind the straddling space 29.
  • the straddling space 29 is a space formed between the leg shield 21, the step floor 25, the side cover 24, and the seat 18, and has a substantially U-shape that opens upward, and the legs of the occupant are on the step floor 25. It is a space that allows step-through above.
  • a headlight 41 and a blinker 42 are provided at the front portion of the handle cover 22, and a side mirror 43 for confirming the rear is provided.
  • a front fender 45 serving as a mudguard for the front wheel 13 is attached to the front fork 39, and a rear fender 46 serving as a mudguard for the rear wheel 14 is attached to the rear end of the side cover 24.
  • a grab rail 47 is provided at the rear of the seat 18.
  • the body frame 11 is provided with a head pipe 31 that pivotally supports a front wheel steering section 15 (see FIG. 1), and a main frame 32 that extends downward from the head pipe 31.
  • the periphery of the head pipe 31 is surrounded by a leg shield 21 including a front cover 27 and a rear cover 28.
  • the upper portion 21a of the leg shield 21 extends rearward as it goes upward.
  • a load absorbing member 50 is disposed in a space 26 formed by the front cover 27 and the rear cover 28.
  • the load absorbing member 50 is disposed in front of the vehicle with respect to the head pipe 31 in a side view of the vehicle.
  • the upper part 51 of the load absorbing member 50 is inclined so as to follow the leg shield 21 extending rearward of the vehicle as it goes upward.
  • a battery 53 is disposed in the space 26 formed by the front cover 27 and the rear cover 28.
  • the load absorbing member 50 may be, for example, an upper constricted shape, a lower constricted shape, a bellows shape, or the like. The shape can be changed.
  • a battery stay 54 that supports the battery 53 extends from the head pipe 31 to the front of the vehicle.
  • the battery stay 54 includes a lower stay portion 55 that extends forward from the lower portion of the head pipe 31, a battery frame 56 that is supported by the lower stay portion 55 and accommodates the battery 53, and extends forward from the upper portion of the head pipe 31.
  • An upper stay portion 57 that supports the rear portion of the battery frame 56 and lower absorbent material stays 61L and 61R (see FIG. 3) that extend from the battery frame 56 to the left and right in the vehicle width direction.
  • the battery 53 and the load absorbing member 50 are supported.
  • a pair of load absorbing members 50L and 50R are provided on the left and right in the vehicle width direction.
  • the lower portions of the load absorbing members 50L, 50R are respectively attached to the lower absorbent stays 61L, 61R via elastic members 64 and screws 65.
  • These elastic members 64 make it difficult for vibration to be transmitted between the battery stay 54 and the load absorbing members 50L and 50R. Further, the battery stay 54 and the load absorbing members 50L and 50R can be easily aligned.
  • the upper part of the load absorbing member 50 is attached to an upper absorbent stay 62 (also referred to as “center stay 62”) that extends forward from the head pipe 31 via a cross member 67 that extends to the left and right in the vehicle width direction.
  • the pair of left and right load absorbing members 50L and 50R are coupled to each other by a cross member 67 extending in the vehicle width direction, and the cross member 67 is supported by a center stay 62 extending from the head pipe 31 in the vehicle width direction.
  • a sub cross member 68 is passed between the load absorbing members 50L and 50R in front of the cross member 67 in the vehicle.
  • the back surfaces 52L and 52R of the load absorbing members 50L and 50R are locked to the rear cover 28 by a plurality of bushes 71.
  • the bush 71 is formed of an elastic member.
  • the load absorbing member and the battery stay are made of thin steel plates.
  • the load absorbing member and the battery stay may be made of other metal such as aluminum or resin, and any material can be selected.
  • a pair of load absorbing members are provided on the left and right, but a plurality of load absorbing members may be provided on the left and right.
  • the load absorbing member is in contact with the rear cover and is not in contact with or fixed to the front cover, but the load absorbing member may be in contact with or fixed directly to the front cover or indirectly via a stay or the like. .
  • the load absorbing members 50L and 50R when viewed from the longitudinal axis direction of the load absorbing members 50L and 50R will be described. Since the load absorbing members 50L and 50R are provided symmetrically with respect to the center line in the vehicle width direction, the load absorbing member 50L provided on the left side in the vehicle width direction will be described as a representative, and the load provided on the right side in the vehicle width direction. The description of the absorbing member 50R is omitted. In the following description, the subscript L indicating left and right is omitted.
  • the load absorbing member 50 connects the outer surface 75 and the front surface 73 with a curved surface (first curved surface 77), and is passed between the front surface 73 and the back surface 52 on the vehicle body center side.
  • the 50 inner side surfaces 76 were curved surfaces.
  • the corner portion is reduced and the load absorbing member 50 is downsized, the degree of freedom in setting the shape of the front cover 27 can be increased. Therefore, the appearance of the vehicle can be easily improved.
  • the front cover 27 can be formed in a streamlined manner. By using the streamline front cover 27, the air resistance during traveling can be reduced.
  • FIG. 6A is an explanatory view of the operation before an occupant sits on the seat 18 (see FIG. 1) and a load is applied to the load absorbing members 50L and 50R
  • FIG. 6B shows an occupant seated on the seat 18.
  • FIG. 10 is an operation explanatory diagram after a load is applied to the load absorbing members 50L and 50R.
  • the load absorbing members 50L and 50R that are disposed in front of the occupant and relieve the load applied to the occupant are space 26 formed by the front cover 27 and the rear cover 28. Placed in. Since the load absorbing members 50L and 50R are surrounded by the front cover 27 and the rear cover 28, the load absorbing members 50L and 50R can be arranged so as not to be seen from the outside. Therefore, the appearance of the vehicle can be improved.
  • the load absorbing member may be disposed behind the leg shield 21, so that the straddle space is narrowed.
  • the strut space 29 is formed compared to the case where the load absorbing members 50L and 50R are arranged behind the leg shield 21. Widely secured.
  • FIG. 6A shows a state before the occupant's knees 80 and 80 are in contact with the load absorbing members 50L and 50R that are arranged in front of the occupant and ease the load applied to the occupant when the occupant sits on the seat 18. It is shown.
  • FIG. 6 (b) shows a state in which the vehicle receives a load, and the knees 80, 80 of the occupant hit the load absorbing members 50L, 50R and are deformed.
  • the occupant's knees 80, 80 move forward of the vehicle and hit the rear cover 28 of the leg shield 21.
  • the load energy is absorbed by the buckling deformation of the portions such as the back surface 52 that are not supported by the cross members 67 of the load absorbing members 50L and 50R. Since the load is absorbed by buckling the load absorbing members 50L and 50R, the load absorbing members 50L and 50R can be downsized.
  • the load absorbing member 50 is disposed in front of the vehicle with respect to the head pipe 31.
  • the rear cover 28 disposed behind the load absorbing member 50 in the vehicle can be disposed further forward of the vehicle.
  • the straddling space 29 located on the rear side of the rear cover 28 can be further expanded to the front side of the vehicle. As a result, the occupant comfort can be improved.
  • the length in the front-rear direction of the space 26 surrounded by the front cover 27 and the rear cover 28 can be shortened.
  • the periphery of the front cover 27 can be made compact. Therefore, the appearance of the vehicle can be further enhanced.
  • the leg shield 21 since the upper portion 21a (see FIG. 2) of the leg shield 21 extends toward the rear of the vehicle as it goes upward, the leg shield 21 can be disposed close to the occupant's legs located in the space 29. In addition, since the load absorbing member 50 is inclined along the upper portion 21a of the leg shield 21, the load applied to the occupant can be alleviated even when the occupant moves diagonally forward.
  • the front cover 27 constituting the leg shield 21 is also inclined along the load absorbing member 50 (50L, 50R), the shape of the front cover 27 bulging toward the front of the vehicle can be obtained. Therefore, the appearance of the vehicle can be further improved.
  • the load absorbing member 50 is a cylindrical member extending in the height direction. When a load is applied from the occupant to the load absorbing member 50, the load absorbing member 50 is buckled, whereby the load energy can be reduced. Compared with the case where the load absorbing member 50 extends horizontally, the longitudinal length can be reduced by extending vertically. Therefore, it is possible to shorten the vehicle longitudinal length of the load absorbing member 50.
  • the load absorbing member 50 Since part of the load absorbing member 50 is formed in a curved surface (the first curved surface 77 (see FIG. 5)), the load is received by the first curved surface 77 when a load is applied from diagonally forward. Can be distributed. Therefore, it can be set as the structure where the load absorption member 50 can absorb load energy more easily.
  • the load absorbing member 50 is formed in a curved surface. When a load is applied obliquely from the front, the entire load is received by the curved surface, so that the load is dispersed and the load energy can be more easily absorbed.
  • the load absorbing members 50 (50L, 50R) provided on the left and right are supported by a center stay 62 extending from the head pipe 31 located at the center in the vehicle width direction via a cross member 67. That is, since the load absorbing member 50 is supported from the center side in the vehicle width direction, the support position of the load absorbing member 50 can be firmly held when an occupant hits the load absorbing member 50. As a result, the load absorbing member 50 can efficiently absorb the load energy and relax the load applied to the occupant. Further, since the load absorbing member 50 is connected to the head pipe 31 having relatively high rigidity, vibration transmitted to the load absorbing member 50 is reduced.
  • the load absorbing members 50L and 50R are coupled by a cross member 67.
  • the load absorbing members 50L and 50R can be reinforced, and when the load is received, the support positions of the load absorbing members 50L and 50R can be held. As a result, the load energy applied to the load absorbing members 50L and 50R can be relaxed.
  • the front end 67a of the cross member 67 is coupled through the opening 83 provided in the load absorbing member 50 (see FIG. 5).
  • the coupling length can be increased.
  • the load absorbing members 50L and 50R can be more firmly connected.
  • the tip 68a of the sub-cross member 68 is coupled through the opening 83 provided in each of the load absorbing members 50L and 50R (see FIG. 5), so that the load absorbing members 50L and 50R are more firmly connected to each other. Can be linked.
  • the battery 53 is disposed between the load absorbing members 50L and 50R. Since the battery 53 is disposed in a space that is likely to be a dead space between the left and right load absorbing members 50L and 50R, the space in the leg shield 21 can be effectively utilized while securing the straddle space 29 (see FIG. 1).
  • the load absorbing members 50L and 50R can be more firmly connected by the battery stay 54. . Therefore, the load absorbing members 50L and 50R can function more effectively.
  • the rear cover 28B absorbs the load between the load absorbing members 50L and 50R and the leg shield 21.
  • Made ribs 86L and 86R are attached. That is, the ribs 86L and 86R are interposed between the load absorbing member 50 and the leg shield 21.
  • the load applied to the leg shield 21 is absorbed not only by the load absorbing member 50 but also by the ribs 86L and 86R.
  • the ribs 86L and 86R can absorb the load energy.
  • the left and right load absorbing members 50L and 50R are joined by a cross member 67 at the substantially center of the inner surface in the vehicle width direction. Since the substantially center of the inner surface in the vehicle width direction is coupled by the cross member 67, the load absorbing members 50L and 50R can be held at the load position when a load is received. In addition, there is no significant difference from the structure and operation of the first embodiment, and a description thereof will be omitted.
  • the load absorbing member and the battery stay are made of metal, and the knee pad is made of resin.
  • the load absorbing member and the battery stay may be made of resin.
  • it is made of resin in addition to fastening, it is possible to join using welding as appropriate.
  • the appearance around the knee pads 88L and 88R can be improved.
  • the knee pads 88L and 88R are disposed behind the load absorbing member 50, it is not necessary to form the knee pads 88L and 88R thickly. Therefore, the load relaxation function of the load absorbing member 50 can be enhanced without narrowing the straddling space 29 (see FIG. 1) more than necessary.
  • Other configurations and operations are not significantly different from those of the first embodiment, and a description thereof is omitted. It should be noted that the ribs provided on the rear cover may be omitted as appropriate.
  • a load absorbing member 50 is provided on the leg shield 21, and a load is applied to the rear cover 28 ⁇ / b> C behind the load absorbing member 50.
  • a resin rib 86 to be absorbed is attached.
  • the load absorbing member 50 is a load absorbing member 50L on the left side in the vehicle width direction, and the load absorbing member on the right side in the vehicle width direction has a symmetric structure with respect to the center line C in the vehicle width direction. Therefore, the description is omitted. Further, in FIG. 11 and subsequent figures, any leg shield surrounding the load absorbing member 50 is omitted.
  • the load absorbing member 50 is provided in the vehicle width direction.
  • a center stay 62 extends from the head pipe 31 toward the front of the vehicle.
  • a cross member 67 extends outward in the vehicle width direction from the center stay 62, and the load absorbing member 50 is supported by the cross member 67.
  • the load absorbing member 50 includes a plurality of curved surfaces with different curvature radii on the outer side surface in the vehicle width direction. Next, the surface configuration of the load absorbing member 50 will be described.
  • the load absorbing member 50 is joined to the molded first member 91, the molded second member 92 joined to the molded first member 91 from the vehicle rear side, and joined to the second member 92 from the vehicle rear side.
  • the third member 93 is combined.
  • the first member 91 includes a front surface 73 of the load absorbing member 50, an outer front side surface 97 and an inner front side surface 98 that extend from both ends of the front surface 73 of the load absorbing member 50 toward the vehicle rear side, a rear end of the outer front side surface 97, and An outer front bottom surface 101 and an inner front bottom surface 102 each extending in the vehicle width direction from the rear end of the inner front side surface 98, a first outer curved surface 103 passed between the front surface 73 and the outer front side surface 97 of the load absorbing member 50; A first inner curved surface 104 passed between the front surface 73 and the inner front side surface 98 of the load absorbing member 50, a second outer curved surface 105 passed between the outer front side surface 97 and the outer front bottom surface 101, and the inner front side surface. 98 and a second inner curved surface 106 passed between the inner front bottom surface 102.
  • the second member 92 includes an outer rear front surface 113 and an inner rear front surface 114 joined to the outer front bottom surface 101 and the inner front bottom surface 102, respectively, and the load absorbing member 50 from the outer rear front surface 113 and the inner rear front surface 114, respectively. And the rear rear side 107 and the inner rear side 108 extending to the rear side of the vehicle, the first rear surface 52 passed between the rear end of the outer rear side 107 and the rear end of the inner rear side 108, and the outer rear front 113.
  • Another outer rear side surface 117 extending rearward of the vehicle from the vehicle width direction outer end, a second rear surface 109 extending from the rear end of the other outer rear side surface 117 in the vehicle width direction, an outer rear side surface 107, and an outer rear front surface 113.
  • a third outer curved surface 123 passed between the inner rear side surface 108 and the inner rear front surface 114, a fourth outer surface passed between the inner rear side surface 108 and the first rear surface 52.
  • Side surface 125, outer inner side surface 108, and first back surface 52 A fourth side surface 126 passed between them, a fifth curved surface 127 passed between another rear outer side surface 117 and the second rear surface 109, and a sixth side passed between the outer rear front surface 113 and another outer rear side surface 117. It consists of a curved surface 128.
  • the third member 93 has a flat plate shape and is joined to the first back surface 52 and the second back surface 109 from the rear of the vehicle.
  • the front surface 73, the first back surface 52, and the second back surface 109 of the load absorbing member 50 are orthogonal to the center line C in the vehicle width direction.
  • the load absorbing member 50 is orthogonal to the center line C in the vehicle width direction.
  • the load absorbing member 50 is formed by combining a first member 91, a second member 92, and a flat plate-like third member 93 having a plurality of curved surfaces.
  • the first member 91 to the third member 93 are a combination of plate materials of the same type such as steel plates.
  • the load absorbing member 50 formed of a plurality of curved surfaces can be formed so that the rear side of the vehicle is squeezed rearward compared to the front, whereby the width of the load absorbing member 50 can be reduced. As a result, if the width of the load absorbing member 50 is reduced, the load absorbing member 50 can be further reduced in size.
  • the rib provided behind the load absorbing member may be omitted.
  • Other configurations and operations are not significantly different from those of the first embodiment, and a description thereof is omitted.
  • the load absorbing member 50 is provided in the vehicle width direction.
  • a center stay 62 extends from the head pipe 31 (see FIG. 9) to the front of the vehicle, and a cross member 67 extends outward in the vehicle width direction from the center stay 62.
  • the load absorbing member 50 is connected to the cross member 67.
  • the approximate center of the inner surface 76 is supported.
  • the load absorbing member 50 is a cylindrical member extending in the height direction.
  • the load absorbing member 50 is coupled by a cross member 67 at the substantially center of the inner side surface 76.
  • the load absorbing member 50 is coupled at substantially the center of the inner side surface 76, the support position of the load absorbing member 50 can be firmly held when the load absorbing member 50 receives a load.
  • Other configurations and operations are not significantly different from those of the first embodiment, and a description thereof is omitted.
  • a center stay 62 extends from the head pipe 31 (see FIG. 9) to the front of the vehicle, and a cross member 67 extends outward in the vehicle width direction from the center stay 62. 67, the approximate center of the inner surface 76 of the load absorbing member 50 is supported.
  • the load absorbing member 50 extends in the height direction and the oblique direction. In the load absorbing member 50, a substantially center of the inner side surface 76 is coupled by a cross member 67. Since the load absorbing member 50 is coupled at substantially the center of the inner side surface 76, the support position of the load absorbing member 50 can be firmly held when the load absorbing member 50 receives a load.
  • the fifth embodiment differs greatly from the fourth embodiment in that the load absorbing member 50 is made of a metal member 111 extending in the height direction and a composite material in which the metal member 111 is partially filled with the foam material 112. .
  • the foam material 112 By combining the foam material 112 with the metal member 111, it is possible to easily form a shape that is difficult to achieve with the metal member 111 alone. As a result, the degree of freedom in setting the shape of the load absorbing member 50 can be increased.
  • the foam material 112 it can be manufactured at a lower cost than the metal load absorbing member 50.
  • Other configurations and operations are not significantly different from those of the first embodiment, and a description thereof is omitted.
  • the joining method between the load absorbing member and the cross member that supports the load absorbing member so as to penetrate the load absorbing member all-around welding is performed. May be. Also, welding may be performed via a stay. Furthermore, the joining method is not limited to welding, and any joining method such as using an adhesive can be applied.
  • the present invention is applied to a motorcycle in the embodiment, it can also be applied to a tricycle and can be applied to a general vehicle.
  • the present invention is preferably applied to a motorcycle.

Abstract

An automatic two-wheeled vehicle provided with load-absorbing members (50L, 50R) for restricting forward movement of a rider. The load-absorbing members are tubular shapes extending in a height direction and an incline direction, an outer side surface (75) and a front surface (73) are joined by a curved surface (77), and an inner side surface (76) is a curved surface.

Description

自動二輪車Motorcycle
　本発明は、荷重吸収部材を備えた自動二輪車の改良に関する。 The present invention relates to an improvement of a motorcycle including a load absorbing member.
　車両が衝撃を受けたときに、乗員の前方への移動を制限し、前方に発生する荷重を吸収する荷重吸収部材を備えた自動二輪車が知られている（例えば、特許文献１参照）。 2. Description of the Related Art There is known a motorcycle including a load absorbing member that restricts a passenger from moving forward and absorbs a load generated in front when the vehicle receives an impact (see, for example, Patent Document 1).
　特許文献１に示すように、自動二輪車は、ハンドルを操向自在に支持するヘッドパイプを備える。このヘッドパイプの下部から車幅方向に連結部材が延ばされ、この連結部材からヘッドパイプに沿って後ろ斜め上方を指向して左右のパッド支持パイプが延ばされ、パッド支持パイプの上部に、左右の膝部パッドが装着される。すなわち、荷重吸収部材は、左右のパッド支持パイプと、これらの左右のパッド支持パイプの上部に設けられ乗員の前方への移動を制限する左右の膝部パッドとからなる。左右の膝部パッドで乗員の前方への移動を制限すると、パッド支持パイプ及び膝部パッドが塑性変形し荷重エネルギーを吸収する。 As shown in Patent Document 1, a motorcycle includes a head pipe that supports a steering wheel in a freely steerable manner. A connecting member extends in the vehicle width direction from the lower portion of the head pipe, and right and left pad support pipes are extended from the connecting member along the head pipe obliquely upward to the rear, and on the upper portion of the pad supporting pipe, Left and right knee pads are worn. That is, the load absorbing member includes left and right pad support pipes and left and right knee pads that are provided above the left and right pad support pipes and restrict forward movement of the occupant. When the movement of the occupant forward is restricted by the left and right knee pads, the pad support pipe and the knee pads are plastically deformed to absorb load energy.
　特許文献１の荷重吸収部材において、パッド支持パイプの曲げにより、荷重を吸収するために、後ろ斜め上方を指向する左右のパッド支持パイプを長くする必要がある。加えて、左右の膝部パッドの車両前後長さも確保する必要がある。そうすると、左右のパッド支持パイプ及び左右の膝部パッドを配置する前後長さも長くなる。荷重吸収部材を小型化できる技術が求められる。 In the load absorbing member of Patent Document 1, in order to absorb the load by bending the pad support pipe, it is necessary to lengthen the left and right pad support pipes directed diagonally upward at the rear. In addition, it is necessary to secure the longitudinal length of the left and right knee pads. If it does so, the front-back length which arrange | positions a right-and-left pad support pipe and a right-and-left knee pad will also become long. A technique capable of reducing the size of the load absorbing member is required.
特許第４３５３４２１号公報Japanese Patent No. 4353421
　本発明は、荷重吸収部材を小型化できる技術を提供することを課題とする。 An object of the present invention is to provide a technique capable of downsizing the load absorbing member.
　請求項１に係る発明は、乗員が操向操作を行うハンドルを軸支するヘッドパイプと、このヘッドパイプの周囲を囲い乗員の前方を覆うレッグシールドと、ヘッドパイプに設けられ乗員に加わる荷重を吸収する左右一対の荷重吸収部材と、レッグシールドの後方に設けられ乗員の足を載せるステップフロアと、レッグシールドの後方に跨ぎ空間を形成するようにして設けられ乗員が座るシートとを備えている自動二輪車において、荷重吸収部材は、高さ方向及び斜め方向に延びている筒状の形状であることを特徴とする。 According to the first aspect of the present invention, there is provided a head pipe that pivotally supports a steering wheel that the occupant performs a steering operation, a leg shield that surrounds the head pipe and covers the front of the occupant, and a load applied to the occupant provided on the head pipe A pair of left and right load absorbing members that absorb, a step floor that is provided behind the leg shield and on which the occupant's feet are placed, and a seat that is provided so as to form a straddle space behind the leg shield and on which the occupant sits are provided. In the motorcycle, the load absorbing member has a cylindrical shape extending in a height direction and an oblique direction.
　請求項２に係る発明では、荷重吸収部材は、外側面と正面とを曲面でつないだ。 In the invention according to claim 2, the load absorbing member connects the outer surface and the front surface with a curved surface.
　請求項３に係る発明では、荷重吸収部材は、内側面が曲面である。 In the invention according to claim 3, the inner surface of the load absorbing member is a curved surface.
　請求項４に係る発明では、荷重吸収部材は、曲率半径の異なる複数の曲面で構成する。 In the invention according to claim 4, the load absorbing member is constituted by a plurality of curved surfaces having different curvature radii.
　請求項５に係る発明は、荷重吸収部材は、高さ方向に延びる金属部材と、この金属部材に一部を充填させる発泡材とからなる。 In the invention according to claim 5, the load absorbing member includes a metal member extending in the height direction and a foam material that partially fills the metal member.
　請求項６に係る発明では、荷重吸収部材は、シートと略同一の地上高に配置される。 In the invention according to claim 6, the load absorbing member is disposed at substantially the same height as the seat.
　請求項７に係る発明では、荷重吸収部材は、車幅方向に左右一対設けられ、荷重吸収部材同士は、車幅方向に延びるクロスメンバによって結合される。 In the invention according to claim 7, the load absorbing member is provided in a pair of left and right in the vehicle width direction, and the load absorbing members are coupled by a cross member extending in the vehicle width direction.
　請求項８に係る発明では、クロスメンバの先端は、前記荷重吸収部材に各々設けた開孔を貫通して結合される。 In the invention according to claim 8, the tip of the cross member is coupled through the opening provided in each of the load absorbing members.
　請求項９に係る発明では、荷重吸収部材は、内側面の略中心が前記クロスメンバで結合される。 In the invention according to claim 9, in the load absorbing member, the substantially center of the inner surface is coupled by the cross member.
　請求項１に係る発明では、車両の乗員制止装置において、荷重吸収部材は、高さ方向及び斜め方向に延びている筒状形状である。乗員が前方へ移動したときに、荷重吸収部材が座屈することにより、荷重エネルギーを緩和することができる。
　荷重吸収部材が水平に延びる場合に比べて、上下に延ばすことで、前後長さを小さくすることができる。よって、荷重吸収部材の車両前後長さを短縮することが可能となる。結果、荷重吸収部材を小型化できる。 In the invention according to claim 1, in the vehicle occupant restraint device, the load absorbing member has a cylindrical shape extending in the height direction and the oblique direction. When the occupant moves forward, the load absorbing member buckles, so that the load energy can be reduced.
Compared with the case where the load absorbing member extends horizontally, the longitudinal length can be reduced by extending the load absorbing member vertically. Therefore, it is possible to shorten the vehicle front-rear length of the load absorbing member. As a result, the load absorbing member can be reduced in size.
　請求項２に係る発明では、外側面と正面とを曲面でつなぐことにより、角部が小さくなり、荷重吸収部材を一層小型化することができる。 In the invention according to claim 2, by connecting the outer surface and the front surface with a curved surface, the corner portion is reduced, and the load absorbing member can be further downsized.
　請求項３に係る発明では、荷重吸収部材は、内側面が曲面であるので、角部が小さくなり、荷重吸収部材を一層小型化することができる。 In the invention according to claim 3, since the inner surface of the load absorbing member is a curved surface, the corner portion becomes smaller, and the load absorbing member can be further downsized.
　請求項４に係る発明では、荷重吸収部材は、曲率半径の異なる複数の曲面で構成される。複数の曲面で構成する荷重吸収部材の車両後方側を正面に比べ後方に向けすぼめるように形成することで、荷重吸収部材の幅を小さくできる。結果、荷重吸収部材の幅が小さくなれば、荷重吸収部材をより一層小型化することができる。 In the invention according to claim 4, the load absorbing member is composed of a plurality of curved surfaces having different curvature radii. The width of the load absorbing member can be reduced by forming the load absorbing member formed of a plurality of curved surfaces so that the rear side of the vehicle is squeezed backward as compared to the front. As a result, if the width of the load absorbing member is reduced, the load absorbing member can be further reduced in size.
　請求項５に係る発明では、荷重吸収部材は、金属部材に一部を充填させる発泡材とからなる。金属部材に発泡材を組み合わせることで、金属部材だけでは実現し難い形状を容易に形成できる。結果、荷重吸収部材の形状設定の自由度を高めることができる。 In the invention according to claim 5, the load absorbing member is made of a foam material that partially fills the metal member. By combining a foam material with a metal member, it is possible to easily form a shape that is difficult to achieve with only the metal member. As a result, the degree of freedom in setting the shape of the load absorbing member can be increased.
　請求項６に係る発明では、荷重吸収部材は、シートと略同一の地上高に配置される。略同一の高さに、荷重吸収部材とシートとが設けられるので、乗員の前方を覆うようにして荷重吸収部材が設けられる。従って、荷重吸収部材が乗員の車両前方への移動を効果的に制限することができる。 In the invention according to claim 6, the load absorbing member is disposed at substantially the same height as the seat. Since the load absorbing member and the seat are provided at substantially the same height, the load absorbing member is provided so as to cover the front of the occupant. Therefore, the load absorbing member can effectively limit the movement of the occupant forward of the vehicle.
　請求項７に係る発明では、クロスメンバによって左右一対の荷重吸収部材同士は結合される。荷重吸収部材同士を結合することで、荷重吸収部材を補強することができ、荷重を受けたときに、荷重吸収部材の保持を更に強固にすることができる。結果、荷重吸収部材で荷重エネルギーを効率良く吸収させることができる。 In the invention according to claim 7, the pair of left and right load absorbing members are joined together by the cross member. By combining the load absorbing members, the load absorbing member can be reinforced, and when the load is received, the holding of the load absorbing member can be further strengthened. As a result, load energy can be efficiently absorbed by the load absorbing member.
　請求項８に係る発明では、クロスメンバの先端は、荷重吸収部材に各々設けた開孔を貫通して結合される。開孔を貫通させてクロスメンバを結合することで、結合長さを長くできる。結果、荷重吸収部材同士をより強固に連結することができる。 In the invention according to claim 8, the tips of the cross members are joined through the openings provided in the load absorbing member. By joining the cross member through the opening, the coupling length can be increased. As a result, the load absorbing members can be more firmly connected.
　請求項９に係る発明では、荷重吸収部材は、内側面の略中心がクロスメンバで結合される。荷重吸収部材は、内側面の略中心で結合されるので、荷重を受けたときに、荷重吸収部材の保持を更に強固にすることができる。 In the invention according to claim 9, in the load absorbing member, the substantially center of the inner surface is coupled by the cross member. Since the load absorbing member is coupled at substantially the center of the inner surface, the load absorbing member can be further firmly held when a load is received.
本発明の第１実施例による自動二輪車の左側面図である。1 is a left side view of a motorcycle according to a first embodiment of the present invention. 図１の自動二輪車の要部を示す、図３の２－２線断面図である。FIG. 4 is a cross-sectional view taken along line 2-2 of FIG. 3, showing the main part of the motorcycle of FIG. 上記自動二輪車の要部を、フロントカバーを外して示す正面図である。Fig. 2 is a front view showing a main part of the motorcycle with a front cover removed. 上記自動二輪車の要部斜視図である。It is a principal part perspective view of the said motorcycle. 上記自動二輪車の荷重吸収部材を示す、図２の５矢視図である。FIG. 5 is a view taken in the direction of arrow 5 in FIG. 2, showing a load absorbing member of the motorcycle. 上記荷重吸収部材を備えた自動二輪車の作用説明図である。FIG. 5 is an operation explanatory diagram of a motorcycle including the load absorbing member. 本発明の第２実施例による自動二輪車の要部平面図である。FIG. 6 is a plan view of a main part of a motorcycle according to a second embodiment of the present invention. 図７の自動二輪車の要部斜視図である。Fig. 8 is a perspective view of a main part of the motorcycle shown in Fig. 7. 膝パッドが付設されるレッグシールドの斜視図である。It is a perspective view of the leg shield to which a knee pad is attached. 本発明の第３実施例による荷重吸収部材の要部平面図である。It is a principal part top view of the load absorption member by 3rd Example of this invention. 本発明の第４実施例による荷重吸収部材の側面図である。It is a side view of the load absorption member by 4th Example of this invention. 上記荷重吸収部材の拡大断面図である。It is an expanded sectional view of the above-mentioned load absorption member. 本発明の第５実施例による荷重吸収部材をその長手軸方向に沿って見たときの図である。It is a figure when the load absorption member by 5th Example of this invention is seen along the longitudinal axis direction.
　以下、本発明の実施の形態について、詳細に説明する。実施例において、「上」、「下」、「前」、「後」、「左」、「右」は、各々、自動二輪車に乗車する運転者から見た方向を示す。 Hereinafter, embodiments of the present invention will be described in detail. In the embodiment, “up”, “down”, “front”, “rear”, “left”, and “right” respectively indicate directions viewed from the driver who rides the motorcycle.
　先ず、本発明の実施例１を図面に基づいて説明する。
　図１に示すように、自動二輪車１０は、車体フレーム１１に前輪１３を操向自在に支える前輪操向部１５と、後輪１４を揺動自在に支えるスイングアーム１６と、前輪１３と後輪１４の間に設けられ乗員が座るシート１８と、後述する車体フレーム１１を覆う車体カバー２０とを備え、スイングアーム１６に駆動源となるパワーユニット１７が一体的に備えられている、いわゆる、ユニットスイング式車両である。 First, Embodiment 1 of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a motorcycle 10 includes a front wheel steering unit 15 that supports a front wheel 13 on a body frame 11 so as to be steered, a swing arm 16 that supports a rear wheel 14 so as to swing, a front wheel 13 and a rear wheel. 14 is a so-called unit swing which includes a seat 18 provided between 14 and a vehicle body cover 20 which covers a vehicle body frame 11 which will be described later, and a power unit 17 as a drive source is integrally provided on the swing arm 16. Vehicle.
　車体フレーム１１は、前輪操向部１５を回動自在に支持するヘッドパイプ３１と、このヘッドパイプ３１から下方に延びた後後方へ延びるメインフレーム３２と、このメインフレームの後端部に車幅方向左右に延びるクロスフレーム３３と、このクロスフレーム３３から延びパワーユニット１７を揺動自在に支えるピボット部３４と、クロスフレーム３３から車両斜め後上方へ延びシート１８を支えるシートレール３５とを主要素とする。 The vehicle body frame 11 includes a head pipe 31 that rotatably supports the front wheel steering portion 15, a main frame 32 that extends downward from the head pipe 31 and extends rearwardly, and a vehicle width at a rear end portion of the main frame. The main elements are a cross frame 33 extending leftward and rightward in the direction, a pivot portion 34 extending from the cross frame 33 and swingably supporting the power unit 17, and a seat rail 35 extending diagonally upward from the cross frame 33 and supporting the seat 18. To do.
　前輪操向部１５は、ヘッドパイプ３１に軸支されるステアリング軸３８と、このステアリング軸３８の上端に取付けられ乗員が操向操作を行うハンドル３７と、ステアリング軸３８の下端から斜め前下方に延びているフロントフォーク３９と、このフロントフォーク３９の下端に取付けられる前輪１３とを有する。 The front wheel steering unit 15 includes a steering shaft 38 that is pivotally supported by the head pipe 31, a handle 37 that is attached to the upper end of the steering shaft 38 and that is operated by the occupant, and that is obliquely forward and downward from the lower end of the steering shaft 38. The front fork 39 is extended, and the front wheel 13 is attached to the lower end of the front fork 39.
　車体カバー２０は、前輪操向部１５の周囲を囲うように配置され乗員がシート１８に座ったとき乗員の下肢の前方を覆うレッグシールド２１と、このレッグシールド２１の上方で、ハンドル３７に取付けられハンドル３７を囲うハンドルカバー２２と、レッグシールド２１の下端から後方に延ばされメインフレーム３２を覆うアンダカバー２３と、このアンダカバー２３の後部から上方及び後方へ延ばされシート１８の下方で車両側方を覆うサイドカバー２４とからなる。アンダカバー２３は、その上面に乗員が足を置くステップフロア２５を備える。 The vehicle body cover 20 is disposed so as to surround the front wheel steering portion 15 and is attached to the handle 37 above the leg shield 21 and the leg shield 21 that covers the front of the lower limbs of the passenger when the passenger sits on the seat 18. A handle cover 22 that surrounds the handle 37, an under cover 23 that extends rearward from the lower end of the leg shield 21 and covers the main frame 32, and extends upward and rearward from the rear portion of the under cover 23 and below the seat 18. It comprises a side cover 24 that covers the side of the vehicle. The undercover 23 is provided with a step floor 25 on which an occupant places his / her feet.
　レッグシールド２１は、ヘッドパイプ３１の車両前方側を覆うフロントカバー２７と、ヘッドパイプ３１の車両後方側を覆うリヤカバー２８とを車両前後方向に合わせてなる。レッグシールド２１の後方に乗員が跨ぐことができる跨ぎ空間２９が形成され、この跨ぎ空間２９の後方にシート１８が設けられる。跨ぎ空間２９は、レッグシールド２１とステップフロア２５とサイドカバー２４とシート１８との間に形成される空間であって、上方へ開放される略Ｕ字状を呈し、乗員の脚がステップフロア２５の上方にステップスルー可能にする空間のことである。ハンドルカバー２２の前部にヘッドライト４１及びウインカー４２が設けられると共に、後方確認用のサイドミラー４３が設けられる。 The leg shield 21 is formed by aligning a front cover 27 covering the vehicle front side of the head pipe 31 and a rear cover 28 covering the vehicle rear side of the head pipe 31 in the vehicle front-rear direction. A straddling space 29 in which an occupant can straddle is formed behind the leg shield 21, and a seat 18 is provided behind the straddling space 29. The straddling space 29 is a space formed between the leg shield 21, the step floor 25, the side cover 24, and the seat 18, and has a substantially U-shape that opens upward, and the legs of the occupant are on the step floor 25. It is a space that allows step-through above. A headlight 41 and a blinker 42 are provided at the front portion of the handle cover 22, and a side mirror 43 for confirming the rear is provided.
　フロントフォーク３９に、前輪１３の泥除けとなるフロントフェンダ４５が取付けられ、サイドカバー２４の後端に後輪１４の泥除けとなるリヤフェンダ４６が取付けられる。シート１８の後部にグラブレール４７が設けられる。 A front fender 45 serving as a mudguard for the front wheel 13 is attached to the front fork 39, and a rear fender 46 serving as a mudguard for the rear wheel 14 is attached to the rear end of the side cover 24. A grab rail 47 is provided at the rear of the seat 18.
　図２に示すように、車体フレーム１１に、前輪操向部１５（図１参照）を軸支するヘッドパイプ３１と、このヘッドパイプ３１から下方へ延びるメインフレーム３２とが備えられている。ヘッドパイプ３１の周囲は、フロントカバー２７及びリヤカバー２８から構成されるレッグシールド２１で囲われる。このレッグシールド２１の上部２１ａは、上方へ向かうにつれて、車両後方へ延びている。 As shown in FIG. 2, the body frame 11 is provided with a head pipe 31 that pivotally supports a front wheel steering section 15 (see FIG. 1), and a main frame 32 that extends downward from the head pipe 31. The periphery of the head pipe 31 is surrounded by a leg shield 21 including a front cover 27 and a rear cover 28. The upper portion 21a of the leg shield 21 extends rearward as it goes upward.
　フロントカバー２７とリヤカバー２８とによって形成される空間２６に、荷重吸収部材５０が配置される。荷重吸収部材５０は、車両側面視で、ヘッドパイプ３１よりも車両前方に配置されている。荷重吸収部材５０の上部５１は、上に向かうにつれて車両後方へ延びているレッグシールド２１に沿うように傾斜している。フロントカバー２７とリヤカバー２８とによって形成される空間２６には、荷重吸収部材５０の他に、バッテリ５３が配置される。 A load absorbing member 50 is disposed in a space 26 formed by the front cover 27 and the rear cover 28. The load absorbing member 50 is disposed in front of the vehicle with respect to the head pipe 31 in a side view of the vehicle. The upper part 51 of the load absorbing member 50 is inclined so as to follow the leg shield 21 extending rearward of the vehicle as it goes upward. In addition to the load absorbing member 50, a battery 53 is disposed in the space 26 formed by the front cover 27 and the rear cover 28.
　なお、荷重吸収部材５０の形状は、フロントカバー２７とリヤカバー２８とに囲まれる範囲内であれば、荷重吸収部材５０は、例えば、上すぼまり形状、下すぼまり形状、蛇腹状、その他の形状に変更することは差し支えない。 If the shape of the load absorbing member 50 is within the range surrounded by the front cover 27 and the rear cover 28, the load absorbing member 50 may be, for example, an upper constricted shape, a lower constricted shape, a bellows shape, or the like. The shape can be changed.
　ヘッドパイプ３１から車両前方にバッテリ５３を支持するバッテリステー５４が延ばされる。このバッテリステー５４は、ヘッドパイプ３１の下部から前方に延びる下ステー部５５と、この下ステー部５５に支持されバッテリ５３が収納されるバッテリ枠体５６と、ヘッドパイプ３１の上部から前方に延びバッテリ枠体５６の後部が支持される上ステー部５７と、バッテリ枠体５６から車幅方向左右に延びる下部吸収材ステー６１Ｌ、６１Ｒ（図３参照）とを主要素とし、バッテリステー５４で、バッテリ５３及び荷重吸収部材５０を支持するようにした。 A battery stay 54 that supports the battery 53 extends from the head pipe 31 to the front of the vehicle. The battery stay 54 includes a lower stay portion 55 that extends forward from the lower portion of the head pipe 31, a battery frame 56 that is supported by the lower stay portion 55 and accommodates the battery 53, and extends forward from the upper portion of the head pipe 31. An upper stay portion 57 that supports the rear portion of the battery frame 56 and lower absorbent material stays 61L and 61R (see FIG. 3) that extend from the battery frame 56 to the left and right in the vehicle width direction. The battery 53 and the load absorbing member 50 are supported.
　図３に示すように、荷重吸収部材５０Ｌ、５０Ｒは、車幅方向左右に一対設けられている。車両前方から見たとき、荷重吸収部材５０Ｌ、５０Ｒの下部は、下部吸収材ステー６１Ｌ、６１Ｒに、弾性部材６４及びねじ６５を介して各々取付けられる。これらの弾性部材６４によって、バッテリステー５４と荷重吸収部材５０Ｌ、５０Ｒの間で振動が伝達され難くなる。また、バッテリステー５４と荷重吸収部材５０Ｌ、５０Ｒとの位置合わせを容易に行うことができる。 As shown in FIG. 3, a pair of load absorbing members 50L and 50R are provided on the left and right in the vehicle width direction. When viewed from the front of the vehicle, the lower portions of the load absorbing members 50L, 50R are respectively attached to the lower absorbent stays 61L, 61R via elastic members 64 and screws 65. These elastic members 64 make it difficult for vibration to be transmitted between the battery stay 54 and the load absorbing members 50L and 50R. Further, the battery stay 54 and the load absorbing members 50L and 50R can be easily aligned.
　荷重吸収部材５０の上部は、ヘッドパイプ３１から前方に延びる上部吸収材ステー６２（「センターステー６２」とも言う。）に車幅方向左右に延びるクロスメンバ６７を介して取付けられる。左右一対の荷重吸収部材５０Ｌ、５０Ｒ同士は、車幅方向に延びるクロスメンバ６７によって結合され、このクロスメンバ６７は、ヘッドパイプ３１から車幅方向に延びるセンターステー６２で支えられている。 The upper part of the load absorbing member 50 is attached to an upper absorbent stay 62 (also referred to as “center stay 62”) that extends forward from the head pipe 31 via a cross member 67 that extends to the left and right in the vehicle width direction. The pair of left and right load absorbing members 50L and 50R are coupled to each other by a cross member 67 extending in the vehicle width direction, and the cross member 67 is supported by a center stay 62 extending from the head pipe 31 in the vehicle width direction.
　図４に示すように、クロスメンバ６７の車両前方にて、荷重吸収部材５０Ｌ、５０Ｒの間に、サブクロスメンバ６８が渡されている。荷重吸収部材５０Ｌ、５０Ｒの背面５２Ｌ、５２Ｒは、複数のブッシュ７１によりリヤカバー２８へ係止される。ブッシュ７１は、弾性部材により形成される。荷重吸収材５０Ｌ、５０Ｒとリヤカバー２８間に複数のブッシュ７１を介在させることにより、荷重吸収部材５０Ｌ、５０Ｒとリヤカバー２８の間の間隔を一定に保つと共に、走行中に、荷重吸収部材５０Ｌ、５０Ｒがリヤカバー２８に接触し発生する振動を防止することができる。 As shown in FIG. 4, a sub cross member 68 is passed between the load absorbing members 50L and 50R in front of the cross member 67 in the vehicle. The back surfaces 52L and 52R of the load absorbing members 50L and 50R are locked to the rear cover 28 by a plurality of bushes 71. The bush 71 is formed of an elastic member. By interposing a plurality of bushes 71 between the load absorbing members 50L, 50R and the rear cover 28, the distance between the load absorbing members 50L, 50R and the rear cover 28 is kept constant, and the load absorbing members 50L, 50R are maintained during traveling. Can be prevented from coming into contact with the rear cover 28.
　なお、本実施例では、荷重吸収部材及びバッテリステーは、薄板鋼板を利用したが、アルミニウム等の他の金属製でも良いし、樹脂製であっても良く、任意の材料を選択できる。また、本実施例では、荷重吸収部材は左右に一対設けられているが、左右に複数設けることは差し支えない。さらに、荷重吸収部材はリヤカバーに当接され、フロントカバーには当接又は固定されていないが、荷重吸収部材をフロントカバーに直接又はステー等を介して間接に当接又は固定させることは差し支えない。 In this embodiment, the load absorbing member and the battery stay are made of thin steel plates. However, the load absorbing member and the battery stay may be made of other metal such as aluminum or resin, and any material can be selected. In this embodiment, a pair of load absorbing members are provided on the left and right, but a plurality of load absorbing members may be provided on the left and right. Further, the load absorbing member is in contact with the rear cover and is not in contact with or fixed to the front cover, but the load absorbing member may be in contact with or fixed directly to the front cover or indirectly via a stay or the like. .
　次に、荷重吸収部材５０Ｌ、５０Ｒの長手軸方向から見たときの、荷重吸収部材５０Ｌ、５０Ｒの形状等について説明する。荷重吸収部材５０Ｌ、５０Ｒは、車幅方向中心線に対し左右対称に設けられているため、車幅方向左側に設けられる荷重吸収部材５０Ｌについて代表して説明し、車幅方向右側に設けられる荷重吸収部材５０Ｒの説明は省略する。以下、左右を示す添え字Ｌを省略して説明する。 Next, the shape and the like of the load absorbing members 50L and 50R when viewed from the longitudinal axis direction of the load absorbing members 50L and 50R will be described. Since the load absorbing members 50L and 50R are provided symmetrically with respect to the center line in the vehicle width direction, the load absorbing member 50L provided on the left side in the vehicle width direction will be described as a representative, and the load provided on the right side in the vehicle width direction. The description of the absorbing member 50R is omitted. In the following description, the subscript L indicating left and right is omitted.
　図５に示すように、荷重吸収部材５０は、その外側面７５と正面７３とを曲面（第１曲面７７）でつなぎ、車体中心側にて正面７３と背面５２の間に渡される荷重吸収部材５０の内側面７６を曲面とした。 As shown in FIG. 5, the load absorbing member 50 connects the outer surface 75 and the front surface 73 with a curved surface (first curved surface 77), and is passed between the front surface 73 and the back surface 52 on the vehicle body center side. The 50 inner side surfaces 76 were curved surfaces.
　外側の側面（外側面７５）と車両前方の面（正面７３）とを曲面（第１曲面７７）でつなぐことにより、小型化することができる。また、荷重吸収部材５０は、車体中心側の面（内側面７６）が曲面であるので、荷重吸収部材５０を一層小型化することができる。 It is possible to reduce the size by connecting the outer side surface (outer surface 75) and the front surface of the vehicle (front surface 73) with a curved surface (first curved surface 77). Further, since the load absorbing member 50 has a curved surface on the vehicle body center side (inner side surface 76), the load absorbing member 50 can be further reduced in size.
　角部が小さくなり、荷重吸収部材５０が小型化すれば、フロントカバー２７の形状設定の自由度を高めることができる。従って、車両の外観性を容易に高めることができる。
　図２に戻り、荷重吸収部材５０が小型化されるので、フロントカバー２７を流線形に形成できる。流線形のフロントカバー２７とすることで、走行中の空気抵抗を低減できる。 If the corner portion is reduced and the load absorbing member 50 is downsized, the degree of freedom in setting the shape of the front cover 27 can be increased. Therefore, the appearance of the vehicle can be easily improved.
Returning to FIG. 2, since the load absorbing member 50 is reduced in size, the front cover 27 can be formed in a streamlined manner. By using the streamline front cover 27, the air resistance during traveling can be reduced.
　以上に述べた自動二輪車の作用を次に述べる。
　図６（ａ）は、シート１８（図１参照）に乗員が座り、荷重吸収部材５０Ｌ、５０Ｒに荷重が掛かる前の作用説明図であり、図６（ｂ）は、シート１８に乗員が座り、荷重吸収部材５０Ｌ、５０Ｒに荷重が掛かった後の作用説明図である。 The operation of the motorcycle described above will be described next.
FIG. 6A is an explanatory view of the operation before an occupant sits on the seat 18 (see FIG. 1) and a load is applied to the load absorbing members 50L and 50R, and FIG. 6B shows an occupant seated on the seat 18. FIG. 10 is an operation explanatory diagram after a load is applied to the load absorbing members 50L and 50R.
　図６（ａ）及び図６（ｂ）に示すように、乗員の前方に配置され乗員に掛かる荷重を緩和する荷重吸収部材５０Ｌ、５０Ｒは、フロントカバー２７とリヤカバー２８とによって形成される空間２６に配置される。荷重吸収部材５０Ｌ、５０Ｒがフロントカバー２７とリヤカバー２８とにより囲まれるため、荷重吸収部材５０Ｌ、５０Ｒを外から見えないように配置できる。従って、車両の外観性を高めることができる。 As shown in FIGS. 6A and 6B, the load absorbing members 50L and 50R that are disposed in front of the occupant and relieve the load applied to the occupant are space 26 formed by the front cover 27 and the rear cover 28. Placed in. Since the load absorbing members 50L and 50R are surrounded by the front cover 27 and the rear cover 28, the load absorbing members 50L and 50R can be arranged so as not to be seen from the outside. Therefore, the appearance of the vehicle can be improved.
　従来、荷重吸収部材を備えた乗員制止装置の構造によっては、荷重吸収部材は、レッグシールド２１の後方に配置される場合があったため、跨ぎスペースが狭くなる。 Conventionally, depending on the structure of an occupant restraint device including a load absorbing member, the load absorbing member may be disposed behind the leg shield 21, so that the straddle space is narrowed.
　荷重吸収部材５０Ｌ、５０Ｒは、レッグシールド２１の後方に位置する跨ぎ空間２９ではなく、レッグシールド２１の内方に配置されるので、レッグシールド２１の後方に配置する場合に比べ、跨ぎ空間２９を広く確保することができる。 Since the load absorbing members 50L and 50R are disposed not inside the straddle space 29 located behind the leg shield 21 but inside the leg shield 21, the strut space 29 is formed compared to the case where the load absorbing members 50L and 50R are arranged behind the leg shield 21. Widely secured.
　図６（ａ）に、乗員がシート１８に座ったときに、乗員の前方に配置され乗員に掛かる荷重を緩和する荷重吸収部材５０Ｌ、５０Ｒに乗員の膝部８０、８０が当たる前の状態が示されている。 FIG. 6A shows a state before the occupant's knees 80 and 80 are in contact with the load absorbing members 50L and 50R that are arranged in front of the occupant and ease the load applied to the occupant when the occupant sits on the seat 18. It is shown.
　図６（ｂ）に、車両が荷重を受け、荷重吸収部材５０Ｌ、５０Ｒに乗員の膝部８０、８０が当たって変形した状態が示されている。図において、乗員の膝部８０、８０が車両前方に移動し、レッグシールド２１のリヤカバー２８に当たる。このとき、荷重吸収部材５０Ｌ、５０Ｒのクロスメンバ６７に支持されていない背面５２等の部分が座屈変形することで荷重エネルギーを吸収する。荷重吸収部材５０Ｌ、５０Ｒを座屈させることで荷重を吸収させるようにしたので、荷重吸収部材５０Ｌ、５０Ｒを小型化することができる。 FIG. 6 (b) shows a state in which the vehicle receives a load, and the knees 80, 80 of the occupant hit the load absorbing members 50L, 50R and are deformed. In the figure, the occupant's knees 80, 80 move forward of the vehicle and hit the rear cover 28 of the leg shield 21. At this time, the load energy is absorbed by the buckling deformation of the portions such as the back surface 52 that are not supported by the cross members 67 of the load absorbing members 50L and 50R. Since the load is absorbed by buckling the load absorbing members 50L and 50R, the load absorbing members 50L and 50R can be downsized.
　図２を併せて参照し、荷重吸収部材５０は、ヘッドパイプ３１よりも車両前方に配置される。ヘッドパイプ３１よりも車両前方に荷重吸収部材５０を配置することで、荷重吸収部材５０の車両後方に配置されるリヤカバー２８をより車両前方側に配置できる。リヤカバー２８が車両前方側に配置されることで、リヤカバー２８の車両後方に位置する跨ぎ空間２９をより車両前方まで拡大することができる。結果、乗員の居住性を高めることができる。 Referring also to FIG. 2, the load absorbing member 50 is disposed in front of the vehicle with respect to the head pipe 31. By disposing the load absorbing member 50 in front of the vehicle from the head pipe 31, the rear cover 28 disposed behind the load absorbing member 50 in the vehicle can be disposed further forward of the vehicle. By disposing the rear cover 28 on the front side of the vehicle, the straddling space 29 located on the rear side of the rear cover 28 can be further expanded to the front side of the vehicle. As a result, the occupant comfort can be improved.
　また、フロントカバー２７とリヤカバー２８とにより囲まれる空間２６の前後方向長さを短くできる。この空間２６の前後方向長さを短くすることで、フロントカバー２７の周辺をコンパクトな形状にすることができる。従って、車両の外観性を一層高めることができる。 Further, the length in the front-rear direction of the space 26 surrounded by the front cover 27 and the rear cover 28 can be shortened. By reducing the length of the space 26 in the front-rear direction, the periphery of the front cover 27 can be made compact. Therefore, the appearance of the vehicle can be further enhanced.
　さらに、レッグシールド２１の上部２１ａ（図２参照）は、上方へ向かうにつれて、車両後方へ延びているので、レッグシールド２１を跨ぎ空間２９に位置する乗員の脚に近づけて配置できる。また、レッグシールド２１の上部２１ａに沿って荷重吸収部材５０を傾斜配置したので、乗員が前方斜め上へ移動する場合であっても、乗員にかかる荷重を緩和させることができる。 Furthermore, since the upper portion 21a (see FIG. 2) of the leg shield 21 extends toward the rear of the vehicle as it goes upward, the leg shield 21 can be disposed close to the occupant's legs located in the space 29. In addition, since the load absorbing member 50 is inclined along the upper portion 21a of the leg shield 21, the load applied to the occupant can be alleviated even when the occupant moves diagonally forward.
　レッグシールド２１を構成するフロントカバー２７も荷重吸収部材５０（５０Ｌ、５０Ｒ）に沿うように傾斜するので、車両前方に向かって膨出するフロントカバー２７の形状とすることができる。従って、より一層、車両の外観性を高めることができる。 Since the front cover 27 constituting the leg shield 21 is also inclined along the load absorbing member 50 (50L, 50R), the shape of the front cover 27 bulging toward the front of the vehicle can be obtained. Therefore, the appearance of the vehicle can be further improved.
　荷重吸収部材５０は、高さ方向に延びる筒状部材である。乗員から荷重吸収部材５０へ荷重が加わったときに、荷重吸収部材５０が座屈することにより、荷重エネルギーを緩和することができる。荷重吸収部材５０が水平に延びる場合に比べて、上下に延ばすことで、前後長さを小さくすることができる。よって、荷重吸収部材５０の車両前後長さを短縮することが可能となる。 The load absorbing member 50 is a cylindrical member extending in the height direction. When a load is applied from the occupant to the load absorbing member 50, the load absorbing member 50 is buckled, whereby the load energy can be reduced. Compared with the case where the load absorbing member 50 extends horizontally, the longitudinal length can be reduced by extending vertically. Therefore, it is possible to shorten the vehicle longitudinal length of the load absorbing member 50.
　荷重吸収部材５０は、その一部が曲面（第１曲面７７（図５参照））に形成されるので、斜め前方から荷重が掛かった場合に、第１曲面７７で荷重を受けるため、この荷重を分散して受けることができる。そのため、荷重吸収部材５０が荷重エネルギーをより吸収し易い構造とすることができる。同様に、荷重吸収部材５０は、曲面に形成される。斜め前方から荷重が掛かった場合に、曲面で全体荷重を受けるので、荷重が分散され、荷重エネルギーをより吸収し易い構造にできる。 Since part of the load absorbing member 50 is formed in a curved surface (the first curved surface 77 (see FIG. 5)), the load is received by the first curved surface 77 when a load is applied from diagonally forward. Can be distributed. Therefore, it can be set as the structure where the load absorption member 50 can absorb load energy more easily. Similarly, the load absorbing member 50 is formed in a curved surface. When a load is applied obliquely from the front, the entire load is received by the curved surface, so that the load is dispersed and the load energy can be more easily absorbed.
　左右に設けられる荷重吸収部材５０（５０Ｌ、５０Ｒ）は、車幅方向中心に位置するヘッドパイプ３１から延びるセンターステー６２にクロスメンバ６７を介して支えられる。すなわち、荷重吸収部材５０は、車幅方向中心側から支持されるので、乗員が荷重吸収部材５０に当たったときに、荷重吸収部材５０の支持位置を強固に保持させることができる。結果、荷重吸収部材５０に、荷重エネルギーを効率良く吸収させ、乗員に加わる荷重を緩和させることが可能になる。また、荷重吸収部材５０は、剛性の比較的高いヘッドパイプ３１と連結されるので、荷重吸収部材５０に伝わる振動が低減される。 The load absorbing members 50 (50L, 50R) provided on the left and right are supported by a center stay 62 extending from the head pipe 31 located at the center in the vehicle width direction via a cross member 67. That is, since the load absorbing member 50 is supported from the center side in the vehicle width direction, the support position of the load absorbing member 50 can be firmly held when an occupant hits the load absorbing member 50. As a result, the load absorbing member 50 can efficiently absorb the load energy and relax the load applied to the occupant. Further, since the load absorbing member 50 is connected to the head pipe 31 having relatively high rigidity, vibration transmitted to the load absorbing member 50 is reduced.
　さらに、荷重吸収部材５０Ｌ、５０Ｒ（図４参照）同士は、クロスメンバ６７によって結合される。荷重吸収部材５０Ｌ、５０Ｒ同士を結合することで、荷重吸収部材５０Ｌ、５０Ｒを補強することができ、荷重を受けたときに、荷重吸収部材５０Ｌ、５０Ｒの支持位置を保持することができる。結果、荷重吸収部材５０Ｌ、５０Ｒに加わる荷重エネルギーを緩和させることができる。 Furthermore, the load absorbing members 50L and 50R (see FIG. 4) are coupled by a cross member 67. By connecting the load absorbing members 50L and 50R to each other, the load absorbing members 50L and 50R can be reinforced, and when the load is received, the support positions of the load absorbing members 50L and 50R can be held. As a result, the load energy applied to the load absorbing members 50L and 50R can be relaxed.
　クロスメンバ６７の先端６７ａは、荷重吸収部材５０（図５参照）に各々設けた開孔８３を貫通して結合される。開孔８３を貫通させてクロスメンバ６７を結合することで、結合長さを長くできる。結果、荷重吸収部材５０Ｌ、５０Ｒ同士をより強固に連結することができる。サブクロスメンバ６８の先端６８ａも同様に、荷重吸収部材５０Ｌ、５０Ｒ（図５参照）に各々設けた開孔８３を貫通して結合されるので、荷重吸収部材５０Ｌ、５０Ｒ同士をより一層強固に連結することができる。 The front end 67a of the cross member 67 is coupled through the opening 83 provided in the load absorbing member 50 (see FIG. 5). By coupling the cross member 67 through the opening 83, the coupling length can be increased. As a result, the load absorbing members 50L and 50R can be more firmly connected. Similarly, the tip 68a of the sub-cross member 68 is coupled through the opening 83 provided in each of the load absorbing members 50L and 50R (see FIG. 5), so that the load absorbing members 50L and 50R are more firmly connected to each other. Can be linked.
　図３に戻り、荷重吸収部材５０Ｌ、５０Ｒの間に、バッテリ５３が配置される。左右の荷重吸収部材５０Ｌ、５０Ｒ間のデッドスペースとなり易い空間にバッテリ５３を配置したので、跨ぎ空間２９（図１参照）を広く確保しつつ、レッグシールド２１内のスペースを有効に活用できる。 3, the battery 53 is disposed between the load absorbing members 50L and 50R. Since the battery 53 is disposed in a space that is likely to be a dead space between the left and right load absorbing members 50L and 50R, the space in the leg shield 21 can be effectively utilized while securing the straddle space 29 (see FIG. 1).
　また、ヘッドパイプ３１の下部から前方に延びバッテリ５３を支持するバッテリステー５４は、荷重吸収部材５０Ｌ、５０Ｒを支持するので、このバッテリステー５４により、荷重吸収部材５０Ｌ、５０Ｒを更に強固に連結できる。従って、荷重吸収部材５０Ｌ、５０Ｒをより有効に機能させることができる。 Further, since the battery stay 54 that extends forward from the lower part of the head pipe 31 and supports the battery 53 supports the load absorbing members 50L and 50R, the load absorbing members 50L and 50R can be more firmly connected by the battery stay 54. . Therefore, the load absorbing members 50L and 50R can function more effectively.
　次に、本発明の実施例２を図面に基づいて説明する
　図７及び図８に示すように、荷重吸収部材５０Ｌ、５０Ｒとレッグシールド２１の間にて、リヤカバー２８Ｂに、荷重を吸収させる樹脂製のリブ８６Ｌ、８６Ｒが付設される。すなわち、荷重吸収部材５０とレッグシールド２１の間に、リブ８６Ｌ、８６Ｒが介在されている。これにより、レッグシールド２１に掛かった荷重は、荷重吸収部材５０の他に、リブ８６Ｌ、８６Ｒによっても吸収される。結果、荷重吸収部材５０に加えて、リブ８６Ｌ、８６Ｒに、荷重エネルギーを吸収させることが可能になる。 Next, Embodiment 2 of the present invention will be described with reference to the drawings. As shown in FIGS. 7 and 8, the rear cover 28B absorbs the load between the load absorbing members 50L and 50R and the leg shield 21. Made ribs 86L and 86R are attached. That is, the ribs 86L and 86R are interposed between the load absorbing member 50 and the leg shield 21. Thereby, the load applied to the leg shield 21 is absorbed not only by the load absorbing member 50 but also by the ribs 86L and 86R. As a result, in addition to the load absorbing member 50, the ribs 86L and 86R can absorb the load energy.
　また、左右の荷重吸収部材５０Ｌ、５０Ｒは、車幅方向内側の面の略中心がクロスメンバ６７で結合される。車幅方向内側の面の略中心がクロスメンバ６７で結合されるので、荷重を受けたときに、荷重吸収部材５０Ｌ、５０Ｒの支持位置を保持することができる。その他、実施例１の構造及び作用と大きく変わるところはなく、説明を省略する。 Further, the left and right load absorbing members 50L and 50R are joined by a cross member 67 at the substantially center of the inner surface in the vehicle width direction. Since the substantially center of the inner surface in the vehicle width direction is coupled by the cross member 67, the load absorbing members 50L and 50R can be held at the load position when a load is received. In addition, there is no significant difference from the structure and operation of the first embodiment, and a description thereof will be omitted.
　なお、本実施例では、荷重吸収部材及びバッテリステーは金属製とし、膝パッドは樹脂製としたが、荷重吸収部材及びバッテリステーのいずれか一方又は双方を樹脂製とすることは差し支えない。また、樹脂製とした場合に、締結に加えて、適宜、溶着を利用して接合することは差し支えない。 In the present embodiment, the load absorbing member and the battery stay are made of metal, and the knee pad is made of resin. However, either one or both of the load absorbing member and the battery stay may be made of resin. Moreover, when it is made of resin, in addition to fastening, it is possible to join using welding as appropriate.
　図９に示すように、図８のリヤカバー２８Ｂを車両後方から見たときに、レッグシールド２１の後面を構成するリヤカバー２８Ｂの車幅方向左右に、乗員の前方への移動を制限する樹脂製の膝パッド８８Ｌ、８８Ｒが付設されている。すなわち、荷重吸収部材５０Ｌ、５０Ｒ、リブ８６Ｌ、８６Ｒに加えて、膝パッド８８Ｌ、８８Ｒによっても吸収される。結果、荷重吸収部材５０Ｌ、５０Ｒ、リブ８６Ｌ、８６Ｒに加えて、膝パッド８８Ｌ、８８Ｒに、荷重エネルギーを緩和させることが可能になる。 As shown in FIG. 9, when the rear cover 28 </ b> B in FIG. 8 is viewed from the rear of the vehicle, a resin cover that restricts the forward movement of the occupant to the left and right in the vehicle width direction of the rear cover 28 </ b> B that constitutes the rear surface of the leg shield 21. Knee pads 88L and 88R are attached. That is, in addition to the load absorbing members 50L and 50R and the ribs 86L and 86R, the knee pads 88L and 88R are also absorbed. As a result, in addition to the load absorbing members 50L and 50R and the ribs 86L and 86R, the knee pads 88L and 88R can relax the load energy.
　また、膝パッド８８Ｌ、８８Ｒの形状を整えることにより、膝パッド８８Ｌ、８８Ｒ回りの外観性を高めることができる。この場合に、荷重吸収部材５０の後方に膝パッド８８Ｌ、８８Ｒが配置されるので、膝パッド８８Ｌ、８８Ｒを厚く形成する必要はない。従って、跨ぎ空間２９（図１参照）を必要以上に狭くすることなく、荷重吸収部材５０の荷重緩和機能を高めることができる。その他の構成及び作用については、実施例１と大きく変わるところはなく説明を省略する。なお、リヤカバーに設けたリブを、適宜省略することは差し支えない。 Further, by adjusting the shape of the knee pads 88L and 88R, the appearance around the knee pads 88L and 88R can be improved. In this case, since the knee pads 88L and 88R are disposed behind the load absorbing member 50, it is not necessary to form the knee pads 88L and 88R thickly. Therefore, the load relaxation function of the load absorbing member 50 can be enhanced without narrowing the straddling space 29 (see FIG. 1) more than necessary. Other configurations and operations are not significantly different from those of the first embodiment, and a description thereof is omitted. It should be noted that the ribs provided on the rear cover may be omitted as appropriate.
　次に、本発明の実施例３を図面に基づいて説明する
　図１０に示すように、レッグシールド２１に、荷重吸収部材５０が設けられ、この荷重吸収部材５０の後方のリヤカバー２８Ｃに、荷重を吸収させる樹脂製のリブ８６が付設される。なお、実施例３～５では、荷重吸収部材５０は、車幅方向左側の荷重吸収部材５０Ｌが示され、車幅方向右側の荷重吸収部材については、車幅方向中心線Ｃに対し対称な構造であるため説明を省略する。また、図１１以降では、荷重吸収部材５０を囲うレッグシールドは、いずれも、省略される。 Next, Embodiment 3 of the present invention will be described with reference to the drawings. As shown in FIG. 10, a load absorbing member 50 is provided on the leg shield 21, and a load is applied to the rear cover 28 </ b> C behind the load absorbing member 50. A resin rib 86 to be absorbed is attached. In Examples 3 to 5, the load absorbing member 50 is a load absorbing member 50L on the left side in the vehicle width direction, and the load absorbing member on the right side in the vehicle width direction has a symmetric structure with respect to the center line C in the vehicle width direction. Therefore, the description is omitted. Further, in FIG. 11 and subsequent figures, any leg shield surrounding the load absorbing member 50 is omitted.
　荷重吸収部材５０は、車幅方向に設けられている。ヘッドパイプ３１から車両前方へセンターステー６２が延ばされ、このセンターステー６２にクロスメンバ６７が車幅方向外方へ延ばされ、これらのクロスメンバ６７に荷重吸収部材５０が支持される。荷重吸収部材５０は、車幅方向外側の側面が、曲率半径の異なる複数の曲面で構成される。荷重吸収部材５０の面構成について次に説明する。 The load absorbing member 50 is provided in the vehicle width direction. A center stay 62 extends from the head pipe 31 toward the front of the vehicle. A cross member 67 extends outward in the vehicle width direction from the center stay 62, and the load absorbing member 50 is supported by the cross member 67. The load absorbing member 50 includes a plurality of curved surfaces with different curvature radii on the outer side surface in the vehicle width direction. Next, the surface configuration of the load absorbing member 50 will be described.
　荷重吸収部材５０は、成形した第１部材９１と、この成形した第１部材９１に車両後方側から接合される成形した第２部材９２と、この第２部材９２に車両後方側から接合される第３部材９３とを組み合わせてなる。 The load absorbing member 50 is joined to the molded first member 91, the molded second member 92 joined to the molded first member 91 from the vehicle rear side, and joined to the second member 92 from the vehicle rear side. The third member 93 is combined.
　第１部材９１は、荷重吸収部材５０の正面７３と、この荷重吸収部材５０の正面７３の両端から車両後方側へ延びる外前側面９７及び内前側面９８と、外前側面９７の後端及び内前側面９８の後端から各々車幅方向に延びる外前底面１０１及び内前底面１０２と、荷重吸収部材５０の正面７３と外前側面９７との間に渡される第１外曲面１０３と、荷重吸収部材５０の正面７３と内前側面９８との間に渡される第１内曲面１０４と、外前側面９７と外前底面１０１との間に渡される第２外曲面１０５と、内前側面９８と内前底面１０２との間に渡される第２内曲面１０６とからなる。 The first member 91 includes a front surface 73 of the load absorbing member 50, an outer front side surface 97 and an inner front side surface 98 that extend from both ends of the front surface 73 of the load absorbing member 50 toward the vehicle rear side, a rear end of the outer front side surface 97, and An outer front bottom surface 101 and an inner front bottom surface 102 each extending in the vehicle width direction from the rear end of the inner front side surface 98, a first outer curved surface 103 passed between the front surface 73 and the outer front side surface 97 of the load absorbing member 50; A first inner curved surface 104 passed between the front surface 73 and the inner front side surface 98 of the load absorbing member 50, a second outer curved surface 105 passed between the outer front side surface 97 and the outer front bottom surface 101, and the inner front side surface. 98 and a second inner curved surface 106 passed between the inner front bottom surface 102.
　第２部材９２は、外前底面１０１及び内前底面１０２に各々接合される外後正面１１３及び内後正面１１４と、これらの外後正面１１３及び内後正面１１４から各々荷重吸収部材５０の内方で且つ車両後方側へ延びる外後側面１０７及び内後側面１０８と、これらの外後側面１０７の後端及び内後側面１０８の後端間に渡される第１背面５２と、外後正面１１３の車幅方向外端から車両後方へ延びる別の外後側面１１７と、この別の外後側面１１７の後端から車幅方向に延びる第２背面１０９と、外後側面１０７と外後正面１１３の間に渡される第３外曲面１２３と、内後側面１０８と内後正面１１４の間に渡される第３内曲面１２４と、内後側面１０８と第１背面５２の間に渡される第４外側面１２５と、外内側面１０８と第１背面５２の間に渡される第４側面１２６と、別の後外側面１１７と第２背面１０９の間に渡される第５曲面１２７と、外後正面１１３と別の外後側面１１７の間に渡される第６曲面１２８とからなる。第３部材９３は、平板状を呈し、第１背面５２と第２背面１０９とに車両後方から接合される。 The second member 92 includes an outer rear front surface 113 and an inner rear front surface 114 joined to the outer front bottom surface 101 and the inner front bottom surface 102, respectively, and the load absorbing member 50 from the outer rear front surface 113 and the inner rear front surface 114, respectively. And the rear rear side 107 and the inner rear side 108 extending to the rear side of the vehicle, the first rear surface 52 passed between the rear end of the outer rear side 107 and the rear end of the inner rear side 108, and the outer rear front 113. , Another outer rear side surface 117 extending rearward of the vehicle from the vehicle width direction outer end, a second rear surface 109 extending from the rear end of the other outer rear side surface 117 in the vehicle width direction, an outer rear side surface 107, and an outer rear front surface 113. A third outer curved surface 123 passed between the inner rear side surface 108 and the inner rear front surface 114, a fourth outer surface passed between the inner rear side surface 108 and the first rear surface 52. Side surface 125, outer inner side surface 108, and first back surface 52 A fourth side surface 126 passed between them, a fifth curved surface 127 passed between another rear outer side surface 117 and the second rear surface 109, and a sixth side passed between the outer rear front surface 113 and another outer rear side surface 117. It consists of a curved surface 128. The third member 93 has a flat plate shape and is joined to the first back surface 52 and the second back surface 109 from the rear of the vehicle.
　荷重吸収部材５０の正面７３、第１背面５２及び第２背面１０９は、車幅方向中心線Ｃに直交している。同様に、荷重吸収部材５０は、車幅方向中心線Ｃに直交している。荷重吸収部材５０は、曲面を複数有する第１部材９１と第２部材９２と平板状の第３部材９３を組み合わせてなる。第１部材９１～第３部材９３は、鋼板等の同じ種類の板材を組み合わせたものである。かかる構造であれば、正面から荷重を受けた場合だけでなく、斜め方向から荷重を受けた場合でも、荷重を好適に吸収させることができる。また、曲面を複数設けることで荷重吸収部材の形状自由度を高めることができる。 The front surface 73, the first back surface 52, and the second back surface 109 of the load absorbing member 50 are orthogonal to the center line C in the vehicle width direction. Similarly, the load absorbing member 50 is orthogonal to the center line C in the vehicle width direction. The load absorbing member 50 is formed by combining a first member 91, a second member 92, and a flat plate-like third member 93 having a plurality of curved surfaces. The first member 91 to the third member 93 are a combination of plate materials of the same type such as steel plates. With such a structure, the load can be suitably absorbed not only when the load is received from the front but also when the load is received from an oblique direction. Further, the degree of freedom of shape of the load absorbing member can be increased by providing a plurality of curved surfaces.
　また、複数の曲面で構成する荷重吸収部材５０は、その車両後方側を正面に比べ後方に向けすぼめるように形成することで、荷重吸収部材５０の幅を小さくできる。結果、荷重吸収部材５０の幅が小さくなれば、荷重吸収部材５０をより一層小型化することができる。 Further, the load absorbing member 50 formed of a plurality of curved surfaces can be formed so that the rear side of the vehicle is squeezed rearward compared to the front, whereby the width of the load absorbing member 50 can be reduced. As a result, if the width of the load absorbing member 50 is reduced, the load absorbing member 50 can be further reduced in size.
　なお、荷重吸収部材の後方に設けられるリブを省略することは差し支えない。その他の構成及び作用については、実施例１と大きく変わるところはなく説明を省略する。 It should be noted that the rib provided behind the load absorbing member may be omitted. Other configurations and operations are not significantly different from those of the first embodiment, and a description thereof is omitted.
　次に、本発明の実施例４を図面に基づいて説明する。
　図１１及び図１２に示すように、荷重吸収部材５０は、車幅方向に設けられている。ヘッドパイプ３１（図９参照）から車両前方へセンターステー６２が延ばされ、このセンターステー６２にクロスメンバ６７が車幅方向外方へ延ばされ、これらのクロスメンバ６７に荷重吸収部材５０の内側面７６の略中心が支持される。荷重吸収部材５０は、高さ方向に延びる筒状部材である。荷重吸収部材５０は、内側面７６の面の略中心がクロスメンバ６７で結合される。荷重吸収部材５０は、内側面７６の略中心で結合されるので、荷重吸収部材５０が荷重を受けたときに、荷重吸収部材５０の支持位置を強固に保持することができる。その他の構成及び作用については、実施例１と大きく変わるところはなく説明を省略する。 Next, a fourth embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 11 and 12, the load absorbing member 50 is provided in the vehicle width direction. A center stay 62 extends from the head pipe 31 (see FIG. 9) to the front of the vehicle, and a cross member 67 extends outward in the vehicle width direction from the center stay 62. The load absorbing member 50 is connected to the cross member 67. The approximate center of the inner surface 76 is supported. The load absorbing member 50 is a cylindrical member extending in the height direction. The load absorbing member 50 is coupled by a cross member 67 at the substantially center of the inner side surface 76. Since the load absorbing member 50 is coupled at substantially the center of the inner side surface 76, the support position of the load absorbing member 50 can be firmly held when the load absorbing member 50 receives a load. Other configurations and operations are not significantly different from those of the first embodiment, and a description thereof is omitted.
　次に、本発明の実施例５を図面に基づいて説明する。
　図１３に示すように、ヘッドパイプ３１（図９参照）から車両前方へセンターステー６２が延ばされ、このセンターステー６２にクロスメンバ６７が車幅方向外方へ延ばされ、これらのクロスメンバ６７に荷重吸収部材５０の内側面７６の略中心が支持される。 Next, a fifth embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 13, a center stay 62 extends from the head pipe 31 (see FIG. 9) to the front of the vehicle, and a cross member 67 extends outward in the vehicle width direction from the center stay 62. 67, the approximate center of the inner surface 76 of the load absorbing member 50 is supported.
　荷重吸収部材５０は、高さ方向及び斜め方向に延びている。荷重吸収部材５０は、内側面７６の略中心がクロスメンバ６７で結合される。荷重吸収部材５０は、内側面７６の略中心で結合されるので、荷重吸収部材５０が荷重を受けたときに、荷重吸収部材５０の支持位置を強固に保持することができる。 The load absorbing member 50 extends in the height direction and the oblique direction. In the load absorbing member 50, a substantially center of the inner side surface 76 is coupled by a cross member 67. Since the load absorbing member 50 is coupled at substantially the center of the inner side surface 76, the support position of the load absorbing member 50 can be firmly held when the load absorbing member 50 receives a load.
　実施例５が実施例４と大きく異なる点は、荷重吸収部材５０は、高さ方向に延びる金属部材１１１と、この金属部材１１１に発泡材１１２を一部充填させた複合材としたことにある。金属部材１１１に発泡材１１２を組み合わせることで、金属部材１１１だけでは実現し難い形状を容易に形成できる。結果、荷重吸収部材５０の形状設定の自由度を高めることができる。 The fifth embodiment differs greatly from the fourth embodiment in that the load absorbing member 50 is made of a metal member 111 extending in the height direction and a composite material in which the metal member 111 is partially filled with the foam material 112. . By combining the foam material 112 with the metal member 111, it is possible to easily form a shape that is difficult to achieve with the metal member 111 alone. As a result, the degree of freedom in setting the shape of the load absorbing member 50 can be increased.
　また、発泡材１１２を用いることで、金属製の荷重吸収部材５０に比べ安価に製造することができる。その他の構成及び作用については、実施例１と大きく変わるところはなく説明を省略する。 Further, by using the foam material 112, it can be manufactured at a lower cost than the metal load absorbing member 50. Other configurations and operations are not significantly different from those of the first embodiment, and a description thereof is omitted.
　なお、荷重吸収部材と、この荷重吸収部材に貫通するようにして荷重吸収部材を支持するクロスメンバーとの間の接合方法は、全周溶接が施されているが、複数の点溶接により接合しても良い。また、ステーを介して溶接することも差し支えない。更に、接合方法については、溶接に限定されることなく、例えば、接着剤を利用する等、任意の接合方法が適用できるものとする。実施例において、クロスメンバは、１つであるが、サブクロスメンバを用いるようにクロスメンバを複数設けることは差し支えない。
　尚、本発明は、実施の形態では自動二輪車に適用したが、三輪車にも適用可能であり、一般の車両に適用することは差し支えない。 In addition, as for the joining method between the load absorbing member and the cross member that supports the load absorbing member so as to penetrate the load absorbing member, all-around welding is performed. May be. Also, welding may be performed via a stay. Furthermore, the joining method is not limited to welding, and any joining method such as using an adhesive can be applied. In the embodiment, there is one cross member, but a plurality of cross members may be provided so as to use sub cross members.
Although the present invention is applied to a motorcycle in the embodiment, it can also be applied to a tricycle and can be applied to a general vehicle.
　本発明は、自動二輪車に適用すると好適である。 The present invention is preferably applied to a motorcycle.
　１０…車両（自動二輪車）、１８…シート、２１…レッグシールド、２７…フロントカバー、２８…リヤカバー、２５…ステップフロア、２７…フロントカバー、２８…リヤカバー、３１…ヘッドパイプ、３７…ハンドル、５０、５０Ｌ、５０Ｒ…荷重吸収部材、５２Ｌ、５２Ｒ…荷重吸収部材の背面、５３…バッテリ、５４…バッテリステー、６２…センターステー（上部吸収材ステー）、６７…クロスメンバ、７３…荷重吸収部材の正面、７５…荷重吸収部材の外側面、７６…荷重吸収部材の内側面、７７…曲面（第１曲面）、８３…開孔、８６Ｌ、８６Ｒ…リブ、８８Ｌ、８８Ｒ…膝パッド、１１１…金属部材、１１２…発泡材。 DESCRIPTION OF SYMBOLS 10 ... Vehicle (motorcycle), 18 ... Seat, 21 ... Leg shield, 27 ... Front cover, 28 ... Rear cover, 25 ... Step floor, 27 ... Front cover, 28 ... Rear cover, 31 ... Head pipe, 37 ... Handle, 50 , 50L, 50R ... load absorbing member, 52L, 52R ... back of load absorbing member, 53 ... battery, 54 ... battery stay, 62 ... center stay (upper absorbent stay), 67 ... cross member, 73 ... load absorbing member Front surface, 75 ... outer side surface of load absorbing member, 76 ... inner side surface of load absorbing member, 77 ... curved surface (first curved surface), 83 ... open hole, 86L, 86R ... rib, 88L, 88R ... knee pad, 111 ... metal Member, 112 ... foam material.

Claims (9)

  1. 　乗員が操向操作を行うハンドルを軸支するヘッドパイプと、このヘッドパイプの周囲を囲い前記乗員の前方を覆うレッグシールドと、前記ヘッドパイプに設けられ前記乗員に加わる荷重を吸収する左右一対の荷重吸収部材と、前記レッグシールドの後方に設けられ乗員の足を載せるステップフロアと、前記レッグシールドの後方に跨ぎ空間を形成するようにして設けられ乗員が座るシートとを備えている自動二輪車において、
    　前記荷重吸収部材は、高さ方向及び斜め方向に延びている筒状の形状であることを特徴とする自動二輪車。     A head pipe that pivotally supports a handle that the occupant performs a steering operation, a leg shield that surrounds the head pipe and covers the front of the occupant, and a pair of left and right that is provided in the head pipe and absorbs a load applied to the occupant In a motorcycle comprising a load absorbing member, a step floor provided behind the leg shield and on which a passenger's foot is placed, and a seat on which a passenger sits provided to form a straddle space behind the leg shield ,
    The motorcycle according to claim 1, wherein the load absorbing member has a cylindrical shape extending in a height direction and an oblique direction.
  2. 　前記荷重吸収部材は、外側面と正面とを曲面でつないだ請求項１記載の自動二輪車。 The motorcycle according to claim 1, wherein the load absorbing member is formed by connecting the outer surface and the front surface with a curved surface.
  3. 　前記荷重吸収部材は、内側面が曲面である請求項１又は請求項２記載の自動二輪車。 The motorcycle according to claim 1 or 2, wherein the load absorbing member has a curved inner surface.
  4. 　前記荷重吸収部材は、曲率半径の異なる複数の曲面で構成する請求項１～３のいずれか１項記載の自動二輪車。 The motorcycle according to any one of claims 1 to 3, wherein the load absorbing member is composed of a plurality of curved surfaces having different curvature radii.
  5. 　前記荷重吸収部材は、高さ方向に延びる金属部材と、この金属部材に一部を充填させる発泡材とからなる請求項１～４のいずれか１項記載の自動二輪車。 The motorcycle according to any one of claims 1 to 4, wherein the load absorbing member includes a metal member extending in a height direction and a foam material that partially fills the metal member.
  6. 　前記荷重吸収部材は、前記シートと略同一の地上高に配置される請求項１～５のいずれか１項記載の自動二輪車。 The motorcycle according to any one of claims 1 to 5, wherein the load absorbing member is disposed at substantially the same height as the seat.
  7. 　前記荷重吸収部材は、車幅方向に左右一対設けられ、
    　前記荷重吸収部材同士は、車幅方向に延びるクロスメンバによって結合される請求項１～６のいずれか１項記載の自動二輪車。     The load absorbing member is provided in a pair of left and right in the vehicle width direction,
    The motorcycle according to any one of claims 1 to 6, wherein the load absorbing members are coupled by a cross member extending in a vehicle width direction.
  8. 　前記クロスメンバの先端は、前記荷重吸収部材に各々設けた開孔を貫通して結合される請求項６又は請求項７記載の自動二輪車。 The motorcycle according to claim 6 or 7, wherein a tip of the cross member is coupled through an opening provided in the load absorbing member.
  9. 　前記荷重吸収部材は、前記内側面の略中心が前記クロスメンバで結合される請求項６～８のいずれか１項記載の自動二輪車。 The motorcycle according to any one of claims 6 to 8, wherein the load absorbing member is joined at a substantially center of the inner surface by the cross member.
PCT/JP2013/063308 2013-05-13 2013-05-13 Automatic two-wheeled vehicle WO2014184848A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007269270A (en) * 2006-03-31 2007-10-18 Honda Motor Co Ltd Apparatus for restricting rider of two wheeled vehicle
JP4353421B2 (en) * 2004-08-27 2009-10-28 本田技研工業株式会社 Crew restraint device for motorcycles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4353421B2 (en) * 2004-08-27 2009-10-28 本田技研工業株式会社 Crew restraint device for motorcycles
JP2007269270A (en) * 2006-03-31 2007-10-18 Honda Motor Co Ltd Apparatus for restricting rider of two wheeled vehicle

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