WO2015079567A1 - 鞍乗り型車両の車体フレーム構造 - Google Patents

鞍乗り型車両の車体フレーム構造 Download PDF

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Publication number
WO2015079567A1
WO2015079567A1 PCT/JP2013/082225 JP2013082225W WO2015079567A1 WO 2015079567 A1 WO2015079567 A1 WO 2015079567A1 JP 2013082225 W JP2013082225 W JP 2013082225W WO 2015079567 A1 WO2015079567 A1 WO 2015079567A1
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WO
WIPO (PCT)
Prior art keywords
seat rail
main frame
seat
body frame
head pipe
Prior art date
Application number
PCT/JP2013/082225
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
英喜 池田
和也 箕輪
プロードプローン ナワポン
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 BR112016009696-7A priority Critical patent/BR112016009696B1/pt
Priority to PCT/JP2013/082225 priority patent/WO2015079567A1/ja
Priority to CN201380081170.0A priority patent/CN105764784B/zh
Priority to ARP140104428A priority patent/AR100027A1/es
Publication of WO2015079567A1 publication Critical patent/WO2015079567A1/ja

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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
    • B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • B62K11/02—Frames
    • B62K11/04—Frames characterised by the engine being between front and rear wheels
    • 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
    • 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
    • B62J35/00—Fuel tanks specially adapted for motorcycles or engine-assisted cycles; Arrangements thereof

Definitions

  • the present invention relates to a body frame structure of a saddle-ride type vehicle in which a joint portion of a frame member constituting the body frame is improved.
  • a body frame of a saddle-ride type vehicle in which a seat rail is extended obliquely upward and rearward from the middle of the main frame (see, for example, Patent Document 1).
  • a load is transmitted from a road surface to a head pipe via a front wheel and a front fork, so it is necessary to increase the rigidity around the head pipe.
  • the outer shape and thickness of the head pipe and main frame are simply increased in order to increase the rigidity of the body frame, the body frame becomes larger and the weight increases.
  • the cost of the body frame is also increased.
  • the seat rail is inclined rearward, when the fuel tank, storage box, and seat are supported by the seat rail, the front support is provided when the support portions are provided on the front and rear sides of the seat rail. It is necessary to make the height different between the rear portion and the rear support portion, or to make the height different before and after the supported fuel tank, storage box, and seat, and the structure becomes complicated.
  • the object of the present invention is to increase the rigidity around the head pipe, reduce the size and weight, and reduce the cost. Further, the body of a saddle-ride type vehicle that can simplify the support structure when supporting parts by seat rails. It is to provide a frame structure.
  • the present invention includes a main frame (22) extending rearward and downward from the head pipe (21), a pivot plate (23) extending downward from the rear end of the main frame (22),
  • a vehicle body frame structure of a saddle-ride type vehicle including a pair of left and right rear frames (26) extending rearward and upward from an upper portion of a pivot plate (23) and a pair of left and right seat rails (24) for supporting a seat (62).
  • the seat rail (24) extends linearly in the front-rear direction in a side view, and its front end is connected to the head pipe (21) above the main frame (22), and the main frame (22)
  • the head pipe (21) extends linearly from the pivot plate (23) toward the pivot plate (23).
  • the pair of left and right rear frames (26) extend linearly to the rail (24), and the rear end of the rear frame (26) is in contact with the leg (89) provided on the seat (62).
  • a space (63) connected to the seat rail (24) in the vicinity of the seat support position (24h) of (24) and surrounded by the main frame (22), the seat rail (24) and the rear frame (26) is It is characterized by a substantially inverted triangular shape in side view.
  • the front end of the seat rail (24) may be provided with a reinforcing member (84) that joins the seat rail (24) and the head pipe (21), respectively.
  • the reinforcing member (84) may include a fuel tank support (84e), and the seat rail (24) may support the fuel tank (61).
  • the said structure WHEREIN You may make it the front end of the said main frame (22) provide the 1st gusset (81) respectively joined to the said head pipe (21) and the said main frame (22). Further, in the above-described configuration, a second gusset (94) that is joined to the seat rail (24) and the rear frame (26) is provided in the vicinity of the seat support position (24h) of the seat rail (24). You may do it.
  • the second gusset (94) may be attached with a cross member (68) that supports the rear cushion unit (69).
  • the cross member (68) has a hollow cylindrical shape at the center and is solid at both ends, and supports the rear cushion unit (69) at the both ends. May be.
  • a gusset (93) may be provided in the vicinity of the connection portion between the pivot plate (23) and the rear frame (26).
  • the seat rail (24) includes a front straight portion (24a) extending substantially rearward and downward from the head pipe (21) to the main frame (22), and the front straight portion (24a).
  • An intermediate straight line portion (24b) extending rearward substantially horizontally from the rear end of the rear straight line portion (24c) extending rearward and upward on a substantially extended line of the rear frame (26) from the rear end of the intermediate straight line portion (24a).
  • the pivot plate (23) may swingably support a swing arm (16) supporting the rear wheel (17) at the rear end via the pivot shaft (52).
  • the engine (14) may be disposed below the main frame (22), and the engine (14) may be supported by the main frame (22) and the pivot plate (23). .
  • the present invention includes a main frame (242) extending rearward and downward from the head pipe (241), a pivot plate (243) extending downward from a rear end of the main frame (242), and an upper portion of the pivot plate (243).
  • the seat rail (244) includes: The front end is connected to the main frame (242), and the main frame (242) is linear from the head pipe (241) toward the pivot plate (243).
  • a rim (246) extends linearly, and a rear end of the rear frame (246) has a seat support position (244h) of the seat rail (244) with which a leg portion (89) provided on the seat (62) abuts.
  • a space (248) connected to the seat rail (244) in the vicinity and surrounded by the main frame (242), the seat rail (244) and the rear frame (246) has a substantially inverted triangular shape in a side view. It is characterized by that.
  • the seat rail extends linearly in the front-rear direction as viewed from the side, and its front end is connected to the head pipe above the main frame, the main frame extends linearly from the head pipe toward the pivot plate,
  • a pair of left and right rear frames extend linearly from the pivot plate to the seat rail, and the rear end of the rear frame is connected to the seat rail in the vicinity of the seat support position of the seat rail where the legs provided on the seat abut. Since the space surrounded by the frame, seat rail, and rear frame has a substantially inverted triangular shape in side view, the rigidity around the head pipe can be increased by connecting the seat rail to the head pipe in addition to the main frame. . Therefore, the outer shape and thickness of the head pipe, main frame, and seat rail can be further reduced, and the body frame can be reduced in size and weight.
  • the main frame, the seat rail, and the rear frame straight, it is possible to obtain a vehicle body frame configuration with as many straight portions as possible. Therefore, a simple body frame structure can be obtained, the cost for bending can be suppressed, and an inexpensive body frame can be obtained.
  • the seat rail can be arranged to be more horizontal than in the prior art. Therefore, in the seat rail, the support structure for supporting the fuel tank and the seat can be simplified, and the cost can be reduced. Furthermore, since a large substantially inverted triangular space is formed immediately behind the head pipe, more parts and large parts can be accommodated in the space, and the accommodated parts can be protected by the vehicle body frame. .
  • the front end of the seat rail is provided with a reinforcing member that is joined to the seat rail and the head pipe, the rigidity of the connecting portion between the head pipe and the seat rail can be increased by the reinforcing member. Accordingly, the outer shape and thickness of the head pipe and seat rail can be further reduced, and the body frame can be reduced in size and weight.
  • the reinforcing member includes a fuel tank supporting portion and the seat rail supports the fuel tank, the reinforcing member also serves as a supporting member that supports the fuel tank, so that the number of parts can be reduced and the cost can be reduced. it can. Furthermore, by supporting the fuel tank with a pair of left and right seat rails, the fuel tank shape can be simplified and the cost can be further reduced as compared with the case where the fuel tank is supported by a single main frame. be able to.
  • the joint between the head pipe and the main frame can be reinforced by the first gusset, thereby increasing the rigidity. Can do. Accordingly, the outer shape and thickness of the head pipe and the main frame can be further reduced, and the body frame can be reduced in size and weight.
  • the second gusset for joining the seat rail and the rear frame is provided in the vicinity of the seat support position of the seat rail, the joint between the seat rail and the rear frame can be reinforced by the second gusset, Stiffness can be increased. Accordingly, the outer shape and thickness of the seat rail and the rear frame can be further reduced, and the body frame can be reduced in size and weight.
  • the cross member that supports the rear cushion unit is attached to the second gusset, the load transmitted from the rear cushion unit to the vehicle body frame via the cross member can be supported by a highly rigid portion. It is possible to handle larger loads that are transmitted. Furthermore, by attaching the cross member to the second gusset, the attachment position of the cross member can be easily changed, and the degree of freedom in the layout of the rear cushion unit can be increased.
  • the cross member has a hollow cylindrical shape at the center, both ends are solid, and the rear cushion unit is supported at both ends, so that only the both ends of the cross member are solid. The support rigidity for supporting the rear cushion unit can be increased, and the weight can be reduced as compared with the case where the entire cross member is solid.
  • a third gusset is provided in the vicinity of the connection portion between the pivot plate and the rear frame, so that the connection portion between the pivot plate and the rear frame is reinforced by the third gusset. Can increase the rigidity. Further, since the main frame, the pivot plate, and the left and right rear frames are connected to each other, the rigidity of the body frame can be increased, and the outer shape and thickness of each body can be further reduced. ⁇ Weight reduction can be achieved.
  • the seat rail includes a front straight portion extending substantially parallel to the main frame rearward and downward from the head pipe, an intermediate straight portion extending rearward substantially horizontally from the rear end of the front straight portion, and a rear end of the intermediate straight portion. Since the front straight part extends substantially rearward and upward on the substantially extended line of the rear frame from the rear frame, the front straight part and the main frame are subjected to loads acting on the head pipe by making the front straight part substantially parallel to the main frame. The head pipe can be effectively supported. Further, the fuel tank and the seat can be supported with a simple structure by the substantially horizontal intermediate straight portion, and the cost can be reduced. Furthermore, by providing the rear straight part on the substantially extended line of the rear frame, the rear part of the vehicle body frame can have an integrated appearance, and the appearance can be improved.
  • the pivot plate supports a swing arm that supports the rear wheel at the rear end in a swingable manner via a pivot shaft, so that the periphery of the pivot plate that is the top of the inverted triangular body frame has high rigidity. Therefore, the swing arm that receives a load from the rear wheel can be supported even with a simple body frame.
  • the swing arm and the rear wheel can be arranged in a space formed behind the inverted triangle, so that the vehicle body space can be effectively used.
  • the periphery of the pivot plate which is the top of the inverted triangular body frame, has high rigidity, so it is simple. Even a structural body frame can support a heavy engine. Further, the engine can be arranged in a space that is formed in the front of the inverted triangle, and the vehicle body space can be effectively used.
  • the seat rail extends linearly in the front-rear direction as viewed from the side, and the front end thereof is connected to the main frame.
  • the main frame extends linearly from the head pipe toward the pivot plate, and from the pivot plate to the seat rail.
  • a pair of left and right rear frames extend in a straight line, and the rear end of the rear frame is connected to the seat rail in the vicinity of the seat support position of the seat rail with which a leg provided on the seat abuts, and the main frame, the seat rail, and the rear frame Since the enclosed space has a substantially inverted triangular shape when viewed from the side, the main frame, the seat rail, and the rear frame can each be formed in a straight line shape so that a vehicle body frame structure having as many straight portions as possible can be obtained. Therefore, a simple body frame structure can be obtained, the cost for bending can be suppressed, and an inexpensive body frame can be obtained.
  • FIG. 1 is a left side view showing a saddle-ride type vehicle including a body frame according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view showing the vehicle body frame of the first embodiment.
  • FIG. 3 is a left side view showing the vehicle body frame of the first embodiment.
  • FIG. 4 is a plan view showing the vehicle body frame of the first embodiment.
  • 5A and 5B are explanatory views showing a reinforcing structure of the front portion of the vehicle body frame
  • FIG. 5A is a left side view showing the front portion of the vehicle body frame
  • FIG. 5B shows the front portion of the vehicle body frame.
  • It is a top view.
  • 6A and 6B are explanatory views showing a reinforcement structure at the lower part of the vehicle body frame.
  • FIG. 1 is a left side view showing a saddle-ride type vehicle including a body frame according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view showing the vehicle body frame of the first embodiment.
  • FIG. 6A is a perspective view showing the lower part of the vehicle body frame
  • FIG. 6B is a rear view showing the lower part of the vehicle body frame
  • FIG. 7 is a perspective view showing a reinforcing structure of the rear part of the vehicle body frame.
  • FIG. 8 is a cross-sectional view showing the rear cross member and the vehicle body frame in the vicinity thereof.
  • 9 is a cross-sectional view taken along line IX-IX in FIG.
  • FIG. 10 is a perspective view showing the vehicle body frame of the second embodiment.
  • FIG. 11 is a left side view showing the vehicle body frame of the second embodiment.
  • FIG. 12 is a plan view showing the vehicle body frame of the second embodiment.
  • FIG. 1 is a left side view showing a saddle-ride type vehicle 10 including a body frame 11 according to the first embodiment of the present invention.
  • a front wheel 13 is attached to a front end portion of a body frame 11 via a front fork 12, and an engine 14 is supported on a lower portion of the body frame 11 and a rear wheel 17 is supported via a swing arm 16. It is a mounted motorcycle.
  • the vehicle body frame 11 includes a head pipe 21, a main frame 22, a pair of left and right pivot plates 23, a pair of left and right seat rails 24, and a pair of left and right rear frames 26.
  • the front fork 12 is supported on the head pipe 21 so as to be steerable.
  • the front fork 12 includes a fork pipe 31 composed of a pair of left and right shock absorbers, and a top bridge 32 and a bottom bridge 33 that connect the left and right fork pipes 31.
  • the front wheels 13 are supported on the lower ends of the left and right fork pipes 31 via axles 34.
  • Headlights 37 are attached to the upper portions of the left and right fork pipes 31 via brackets 35.
  • the headlight 37 is provided with a meter 38 at the top.
  • a pair of left and right handles 36 are attached to the top bridge 32.
  • a steering stem (not shown) is provided between the top bridge 32 and the bottom bridge 33, and the steering stem is rotatably supported in the head pipe 21.
  • the main frame 22 extends rearward and obliquely downward in a straight line from the lower portion of the head pipe 21.
  • the pair of left and right pivot plates 23 extend downward from the rear end portion of the main frame 22.
  • the engine 14 is supported on the main frame 22 and the left and right pivot plates 23.
  • the engine 14 includes a crankcase 41 and a cylinder portion 42 provided at the front end portion of the crankcase 41 so as to extend substantially forward.
  • a transmission 43 is integrally attached to the crankcase 41.
  • the upper part of the crankcase 41 is supported by a pair of left and right engine hangers 44 provided on the main frame 22, and a pair of left and right driver steps 46 are provided at the lower part of the crankcase 41.
  • the cylinder portion 42 includes a cylinder block 47 provided at the front end portion of the crankcase 41, a cylinder head 48 attached to the front end portion of the cylinder block 47, and a head cover 49 that covers an opening at the front end portion of the cylinder head 48.
  • the cylinder head 48 has an intake device connected to an upper portion thereof and an exhaust device connected to a lower portion thereof.
  • the left and right pivot plates 23 are provided with a pivot shaft 52 extending in the vehicle width direction, and the swing arm 16 is supported by the pivot shaft 52 so as to be vertically swingable.
  • a stand 28 is swingably attached to the lower ends of the left and right pivot plates 23 via a support shaft 27. The stand 28 can be switched between a storage state shown in the figure and a standing state when the vehicle is stopped.
  • the rear wheel 17 is supported on the rear end portion of the swing arm 16 via an axle 53, and a pair of left and right passenger steps 54 are provided on the side surface of the swing arm 16 in front of the axle 53.
  • a drive sprocket 56 is attached to the output shaft 43 a of the transmission 43, and a driven sprocket 57 is integrally attached to the rear wheel 17, and a chain 58 is spanned between the drive sprocket 56 and the driven sprocket 57.
  • the upper part of the chain 58 is covered with a chain cover 59.
  • the pair of left and right seat rails 24 extend rearward from the upper part of the head pipe 21.
  • the pair of left and right rear frames 26 extend obliquely rearward and upward from the upper part of the pivot plate 23 and are connected to the rear part of the seat rail 24.
  • a fuel tank 61 is supported on the front portion of the seat rail 24, and a seat 62 is supported on the rear portion of the seat rail 24. Both sides of the fuel tank 61 and a substantially triangular space 63 surrounded by the main frame 22, the seat rail 24, and the rear frame 26 are covered with a pair of left and right vehicle body covers 64.
  • An air cleaner 65 that constitutes an intake device of the engine 14 is disposed in the space 63.
  • the seat 62 includes a driver seat 62A that constitutes a front portion, and a passenger seat 62B that is disposed behind the driver seat 62A.
  • a U-shaped grab rail 66 (see also FIGS. 2 and 4) is connected to the rear ends of the left and right seat rails 24.
  • a pair of left and right rear gussets 94 are provided in the vicinity of the connecting portion between the seat rail 24 and the rear frame 26, and a rear cross member 68 is attached to the left and right rear gussets 94 so as to extend in the vehicle width direction.
  • the rear gusset 94 has a cover structure that is exposed to the outside and covers the inside of the vehicle body frame 11.
  • a pair of left and right rear cushion units 69 are passed and attached.
  • the pivot shaft 52, the swing arm 16 and the rear cushion unit 69 suspend the rear wheel 17 from the body frame 11.
  • reference numeral 75 is a fuel cock arranged on the lower left side of the fuel tank 61, 76 is a hugger fender covering the front upper part of the rear wheel 17, 77 is a rear fender covering the rear upper part of the rear wheel 17, and 78 is a taillight. is there.
  • FIG. 2 is a perspective view showing the vehicle body frame 11 of the first embodiment
  • FIG. 3 is a left side view showing the vehicle body frame 11 of the first embodiment
  • the main frame 22 is a single member that extends linearly downward from the lower portion of the head pipe 21, and has the largest diameter of the components of the body frame 11.
  • Pipe material The joint between the head pipe 21 and the main frame 22 is reinforced by a plate-like front gusset 81 welded to the lower rear part of the head pipe 21 and the lower front part of the main frame 22.
  • the pair of left and right pivot plates 23 are connected by a cross pipe 82 whose lower ends extend in the vehicle width direction, and each pivot plate 23 receives a support shaft 27 (see FIG. 1) of a stand 28 (see FIG. 1).
  • the bearing portion 83 is attached.
  • the seat rail 24 is a round pipe material in which a front straight portion 24a, an intermediate straight portion 24b, and a rear straight portion 24c are integrally bent in order from the front side, and extends generally in a straight line and substantially horizontally in the front-rear direction as a whole. ing.
  • the front straight portion 24a is a portion extending from the upper part of the head pipe 21 to the rear and obliquely downward in a straight line above the main frame 22 substantially parallel to the main frame 22.
  • a plate-like front upper gusset 84 is attached to the upper part of the front end portion of the left and right front straight portions 24a by welding.
  • the front upper gusset 84 is a reinforcing member that is also welded to the rear portion of the head pipe 21 and reinforces the joint portion between the head pipe 21 and the seat rail 24.
  • the front upper gusset 84 supports the front end of the fuel tank 61 (see FIG. 1) as will be described later.
  • the intermediate straight portion 24b is a portion that extends rearward in a straight line and substantially horizontally from the rear end portion of the front straight portion 24a.
  • a pair of left and right tank rear side support members 86 that support the rear end portion of the fuel tank 61 are attached to the left and right intermediate linear portions 24b at substantially the center in the front-rear direction.
  • Legs 88 and 89 provided on the bottom plate of the seat 62 are respectively connected to the intermediate straight part 24b between the tank rear side support member 86 and the rear end of the intermediate straight part 24b via rubbers 87.
  • the sheet 62 is elastically supported.
  • Reference numerals 24g and 24h see FIG.
  • the rear straight portion 24c is a portion extending rearward and obliquely upward in a straight line from the rear end portion of the intermediate straight portion 24b, and a grab rail 66 is aligned with the rear straight portion 24c in a straight line when viewed from the side. It is attached by welding.
  • the rear frame 26 is a round pipe material that extends obliquely rearward and upward in a straight line from the upper part of the left and right pivot plates 23 in a side view of FIG. Front portions of the left and right rear frames 26 are connected by a plate-like lower gusset 93. Further, since the front edge of the lower gusset 93 is welded to the upper part of the rear end portion of the main frame 22, the joint between the left and right pivot plates 23 and the left and right rear frames 26 is reinforced. A plate-shaped rear gusset 94 is welded to each of the left and right rear frames 26 and each of the left and right seat rails 24. As a result, the joint between the seat rail 24 and the rear frame 26 is reinforced. The rear cross member 68 is attached to the left and right rear gussets 94 by welding so as to penetrate therethrough.
  • FIG. 4 is a plan view showing the vehicle body frame 11 of the first embodiment.
  • the left and right seat rails 24 extend rearward and obliquely outward so that the front straight portion 24a and the front half of the intermediate straight portion 24b extend left and right from the head pipe 21, and the rear half of the intermediate straight portion 24b and the rear straight portion 24c Are parallel to each other and extend backward.
  • Most of the left and right rear frames 26 extend rearward from the main frame 22 below the rear half of the intermediate straight portion 24 b of the seat rail 24.
  • the front upper gusset 84 is provided with a bolt hole 84a, and the tank rear side support members 86, 86 are provided with bolts 86a, 86a.
  • the fuel tank 61 is attached to the front upper gusset 84 and the tank rear side support members 86, 86 by fastening bolts 86a to the bolt holes 84a and nuts to the bolts 86a.
  • the bolt 86a on one of the front and rear support portions of the fuel tank 61, the bolt insertion hole of the flange of the fuel tank 61 is fitted to the bolt 86a when the fuel tank 61 is attached to the seat rail 24.
  • the fuel tank 61 can be easily positioned. Therefore, the assembly property of the fuel tank 61 can be improved.
  • the seat 62 has a length from the tank rear side support member 86 to the rear end of the seat rail 24 in the front-rear direction, and at least the left and right legs 88 and 89 are in contact with the seat rail 24.
  • the left and right rear frames 26 are bent from a rear straight end 26e and a front straight portion 26e extending obliquely outward and rearward from a joint with the left and right pivot plates 23 (see FIG. 3) in plan view.
  • the lower portion of the seat rail 24 is integrally formed with a rear straight portion 26f (see FIG. 2) extending linearly rearward.
  • FIG. 5 is an explanatory view showing a reinforcing structure of the front portion of the vehicle body frame 11
  • FIG. 5A is a left side view showing the front portion of the vehicle body frame 11
  • FIG. 5B is a front view of the vehicle body frame 11. It is a top view which shows a part.
  • the front end portion 22a of the main frame 22 is welded from the lower portion of the head pipe 21, specifically, from the side portion of the lower portion to the rear portion.
  • the plate-like front gusset 81 is applied to the lower portion of the front portion of the main frame 22, the front end portion 81 a of the front gusset 81 is welded to the head pipe 21, and the side edges 81 b and 81 b ( Only one side edge 81b is shown) is welded to the main frame 22.
  • the joint between the head pipe 21 and the main frame 22 is reinforced, and the rigidity is increased.
  • the front end portions 24d of the left and right seat rails 24 are welded to the upper portion of the head pipe 21, more specifically, the upper side portion.
  • the front end portions 24d of the left and right seat rails 24 are compression-molded into a flat plate shape that is easy to weld to the side portion of the head pipe 21, and the front edge 24e of the flat plate-shaped front end portion 24d is welded.
  • the front upper gusset 84 includes a substantially horizontal flat portion 84e to which the front portion of the flange of the fuel tank 61 (see FIG. 1) is placed and attached. The front edge 84b of the flat portion 84e is applied to the rear portion of the head pipe 21. Being welded.
  • the front upper gusset 84 is a plate-shaped member having a T-shape in plan view.
  • the front edge 84 b of the flat portion 84 e is formed in a concave substantially arc shape and is welded to the head pipe 21.
  • Side extension portions 84c and 84c that extend integrally outward in the vehicle width direction are provided at the rear portion of the flat portion 84e.
  • the laterally extending portions 84c and 84c have outer edges 84d welded to the left and right seat rails 24 and 24, respectively.
  • a bolt hole 84a for screwing a bolt for attaching the fuel tank 61 is formed in the center portion in the vehicle width direction at the rear portion of the flat portion 84e.
  • FIG. 6A and 6B are explanatory views showing a reinforcing structure of the lower part of the body frame 11,
  • FIG. 6A is a perspective view showing the lower part of the body frame 11
  • FIG. 6B is a rear view showing the lower part of the body frame 11. It is.
  • the upper edges 23a of the left and right pivot plates 23, 23 are welded to the rear side of the main frame 22.
  • front end portions 26a and 26a (only the front end portion 26a on the near side is shown) of the left and right rear frames 26 and 26 are welded to the upper side surfaces of the left and right pivot plates 23 and 23, respectively.
  • the front end portions 26a of the left and right rear frames 26, 26 are compression-molded into a flat plate shape that can be easily welded to the side portion of the pivot plate 23, and the front edge 26b and the side edges 26c, 26c of the flat plate-like front end portion 26a are welded. ing.
  • the lower gusset 93 is a plate-like member attached so as to straddle the left and right rear frames 26 and 26. Side edges 93a and 93a (only the side edge 93a on the near side is shown) of the lower gusset 93 are formed in a straight line and welded to the rear frames 26 and 26.
  • a front edge 93b of the lower gusset 93 is formed with a concave and substantially arc-shaped depression 93c at the center, and the depression 93c is applied to the upper part of the rear end of the main frame 22 and welded.
  • the lower gusset 93 is joined to the left and right rear frames 26, 26 and the main frame 22, so that the joint between the main frame 22 and the left and right pivot plates 23, 23 and the left and right pivot plates 23, 23 are obtained. It is possible to reinforce the joint between the rear frame 26 and the rear frame 26, respectively. Therefore, the rigidity of the lower part of the body frame 11 can be increased. Further, the rigidity of the left and right rear frames 26, 26 can be increased.
  • Reference numerals 23b and 44a in the figure denote bolt insertion holes through which bolts for supporting the engine are passed, and 201 denotes a spring hooking portion for hooking an end of a spring for the stand 28 (see FIG. 1).
  • a reinforcing plate 202 is welded to the left and right pivot plates 23, 23 so as to straddle the upper rear edges 23c, 23c.
  • the upper edge 202a of the reinforcing plate 202 is formed with a concave recess 202b, and the recess 202b is welded to the lower portion of the rear end of the main frame 22.
  • the joint between the main frame 22 and the left and right pivot plates 23 and 23 can be reinforced, and rigidity is increased. Can be increased. Further, the rigidity of the left and right pivot plates 23, 23 can be increased.
  • FIG. 7 is a perspective view showing a reinforcing structure of the rear portion of the vehicle body frame 11.
  • End portions 66a and 66a of the grab rail 66 are welded to outer portions of the rear end portions 24f and 24f of the left and right seat rails 24 and 24, respectively.
  • End portions 66 a and 66 a of the grab rail 66 are compression-molded into arc-shaped plates along the outer peripheral surfaces of the seat rails 24 and 24, and are welded to the seat rails 24 and 24.
  • the rear end portions 26d and 26d of the left and right rear frames 26 and 26 are welded to the lower portions of the rear end portions of the intermediate straight portions 24b and 24b in the left and right seat rails 24 and 24, respectively.
  • the rear gusset 94 is a plate-like member having a substantially trapezoidal shape when viewed from the side (see also FIG. 3), and is disposed at a position away from the joint between the left and right seat rails 24 and the left and right rear frames 26. .
  • the rear gusset 94 has a first side 94a formed in a substantially straight line and welded to the side of the seat rail 24, and a second side 94b formed in a substantially straight line and welded to the side of the rear frame 26. Yes. Both ends of the rear cross member 68 project outward from the left and right rear gussets 94, 94, and screws 206d are formed at both ends for attaching the rear cushion unit 69 (see FIG. 1).
  • FIG. 8 is a cross-sectional view showing the rear cross member 68 and the vehicle body frame 11 in the vicinity thereof, in which the cross section of the upper end mounting portion 69a of the rear cushion unit 69 is added to the cross section taken along line VIII-VIII in FIG.
  • the rear cross member 68 includes a cylindrical member 205 attached so as to penetrate the left and right rear gussets 94, 94, and an inner peripheral surface 206 a that is inserted into both ends of the cylindrical member 205 and is welded to the end surface 205 a of the cylindrical member 205. It consists of real shaft members 206 and 206.
  • the cylindrical member 205 has an outward protrusion amount from the rear gussets 94, 94 of P1 on the left side and P2 on the right side, and the protrusion amount P1 is larger than the protrusion amount P2 (P1> P2). This is because the positions of the left and right rear cushion units 69 in the vehicle width direction are different.
  • the left and right protrusion amounts P1, P2 of the cylindrical member 205 can be easily set according to the positions of the left and right rear cushion units 69. Can be changed. Also, the position of the rear cushion unit 69 can be accommodated by adjusting the protruding amount of the shaft member 206 relative to the cylindrical member 205.
  • the shaft member 206 includes a large-diameter portion 206b inserted into the cylindrical member 205 and a small-diameter portion 206c formed adjacent to the large-diameter portion 206b and smaller in diameter than the large-diameter portion 206b.
  • a screw 206d is formed at the tip.
  • the end face 206e of the large diameter portion 206b is located on the inner side in the vehicle width direction than the seat rail 24. Accordingly, the hollow portion 68 a of the rear cross member 68 is provided between the left and right seat rails 24 and 24 and between the left and right rear frames 26 and 26.
  • Reference numeral 210 denotes an auxiliary line extending in the vertical direction through the end face 205a of the cylindrical member 205
  • 211 denotes an auxiliary line extending in the vertical direction through the end face 206e of the large-diameter portion 206b of the shaft member 206.
  • the small-diameter portion 206c includes a washer 213 applied to a step portion 206f formed at the boundary between the large-diameter portion 206b and the small-diameter portion 206c, a sleeve 214, and a washer 216 disposed outside the sleeve 214 in the vehicle width direction. It is mated.
  • the upper end mounting portion 69a of the rear cushion unit 69 is slidably fitted on the outer side in the radial direction of the sleeve 214 so as to be sandwiched between washers 213 and 216 on both sides.
  • a nut 217 screwed to the male screw 206d is disposed on the outer side in the vehicle width direction of the washer 216.
  • the fuel tank 61 has an upper and lower divided structure including an upper tank 221 and a lower tank 222, an upper flange 221 a formed on the lower periphery of the upper tank 221, and a lower flange formed on the upper periphery of the lower tank 222. 222a is joined.
  • the upper tank 221 includes a fuel filler port 223 that supplies fuel and a filler cap 224 that closes the fuel filler port 223.
  • the lower tank 222 has a lower bulging portion 222 b that bulges downward on the left end side, and the lower bulging portion 222 b is disposed on the left side of the left seat rail 24.
  • a fuel cock assembly 226 extending in the vertical direction is attached to the bottom wall 222c of the lower bulging portion 222b.
  • the fuel cock assembly 226 is connected to the fuel cock base 231 fixed to the bottom wall 222c, a suction pipe 232 inserted so as to extend vertically from the fuel cock base 231 into the fuel tank 61, and the suction pipe 232.
  • a fuel cock 75 that opens and closes a fuel passage in the fuel cock base 231.
  • the fuel passage in the fuel cock base 231 is connected to a fuel supply passage to the engine 14 (see FIG. 1) side.
  • the vehicle body of the saddle-ride type vehicle 10 including the main frame 22 that extends rearward and downward from the head pipe 21 and the pair of left and right seat rails 24 that support the seat 62.
  • the seat rail 24 extends linearly in the front-rear direction as viewed from the side, and its front end is connected to the head pipe 21 above the main frame 22.
  • the rigidity around the head pipe 21 can be increased by connecting the seat rail 24 to the head pipe 21 in addition to the main frame 22.
  • the outer shape and thickness of the head pipe 21, the main frame 22, and the seat rail 24 can be further reduced, and the body frame 11 can be reduced in size and weight. Further, by making the seat rail 24 linear, the cost for bending can be suppressed, and the inexpensive body frame 11 can be obtained.
  • the seat rail 24 can be arranged to be more horizontal than in the past. Therefore, the support structure for supporting the fuel tank 61 and the seat 62 in the seat rail 24 can be simplified, and the cost can be reduced.
  • the fuel tank 61 has a simple support structure in which a flange is supported on both the front and rear sides of the fuel tank 61 as a vertically divided structure.
  • the seat 62 has a structure in which the leg portions 88 and 89 having the same shape provided on the front and rear sides of the seat 62 are brought into contact with the seat support positions 24g and 24h of the seat rail 24 for simplification.
  • the seat height of the saddle-ride type vehicle 10 is made the same as that of a vehicle in which only the main frame is coupled to a conventional head pipe.
  • the main frame 22 and the engine 14 supported by the main frame 22 can be arranged lower, and the center of gravity of the saddle-ride type vehicle 10 can be lowered.
  • the front end of the seat rail 24 is provided with a front upper gusset 84 as a reinforcing member to be joined to the seat rail 24 and the head pipe 21, respectively.
  • the upper gusset 84 can increase the rigidity of the connection portion between the head pipe 21 and the seat rail 24. Therefore, the outer shape and thickness of the head pipe 21 and the seat rail 24 can be further reduced, and the body frame 11 can be reduced in size and weight.
  • the front upper gusset 84 includes a flat portion 84 e as a fuel tank support portion, and the seat rail 24 supports the fuel tank 61.
  • the front upper gusset 84 also serves as a support member that supports the fuel tank 61, the number of parts can be reduced and the cost can be reduced. Furthermore, by supporting the fuel tank 61 with the pair of left and right seat rails 24, the fuel tank shape can be simplified and the cost can be further reduced as compared with the case where the fuel tank is supported by a single main frame. Can be achieved.
  • the main frame 22 extends linearly from the head pipe 21 toward the pivot plate 23, and a pair of left and right rear frames 26 linearly extends from the pivot plate 23 to the seat rail 24. Since the seat rail 24 extends, the structure of the vehicle body frame 11 having as many straight portions as possible can be achieved, in addition to the fact that the seat rail 24 is straight. Therefore, a simple body frame structure can be obtained, the cost for bending can be suppressed, and the body frame 11 can be manufactured at low cost.
  • the rear end of the rear frame 26 is connected to the seat rail 24 in the vicinity of the seat support position 24h, and a space 63 surrounded by the main frame 22, the seat rail 24, and the rear frame 26 has a substantially inverted triangular shape in a side view.
  • the load acting on the seat support positions 24g and 24h can be received at the connecting portion between the highly rigid seat rail 24 and the rear frame 26, and a larger load acting on the seat 62 can be handled. Further, the rigidity of the joint between the seat rail 24 and the rear frame 26 can be increased, the outer shape and thickness of the seat rail 24 and the rear frame 26 can be further reduced, and the vehicle body frame 11 can be reduced in size and weight. Can be achieved. Furthermore, since a large substantially inverted triangular space 63 is formed immediately behind the head pipe 21, more parts and large parts can be accommodated in the space 63 and the accommodated parts are protected by the vehicle body frame 11. can do.
  • the front end of the main frame 22 is provided with a front gusset 81 as a first gusset that is joined to the head pipe 21 and the main frame 22, respectively.
  • the joint portion between the head pipe 21 and the main frame 22 can be reinforced, and the rigidity can be increased. Therefore, the outer shape and thickness of the head pipe 21 and the main frame 22 can be further reduced, and the body frame 11 can be reduced in size and weight.
  • a rear gusset 94 as a second gusset that is joined to the seat rail 24 and the rear frame 26 is provided in the vicinity of the seat support position 24h.
  • the joint portion between the seat rail 24 and the rear frame 26 can be reinforced by the rear gusset 94, and the rigidity can be increased. Therefore, the outer shape and thickness of the seat rail 24 and the rear frame 26 can be further reduced, and the vehicle body frame 11 can be reduced in size and weight.
  • the rear gusset 94 is attached with a rear cross member 68 as a cross member for supporting the rear cushion unit 69, so that the rear cross member 68 is interposed between the rear cushion unit 69 and the rear cross member 68.
  • the load transmitted to the vehicle body frame 11 can be supported by a portion having high rigidity, and a larger load transmitted from the rear cushion unit 69 side can be handled.
  • the attachment position of the rear cross member 68 can be easily changed, and the degree of freedom of layout of the rear cushion unit 69 can be increased. Further, as shown in FIGS.
  • the rear cross member 68 has a hollow cylindrical shape at the center and is solid at both ends, and supports the rear cushion unit 69 at both ends.
  • the rear cross member 68 By making only both ends of the rear cross member 68 solid, it is possible to increase the support rigidity for supporting the rear cushion unit 69 and to reduce the weight compared to making the entire rear cross member 68 solid. it can.
  • the rear end of the main frame 22 and the rear frame 26 are connected. Since the lower gusset 93 as the third gusset to be joined is provided, the connection portion between the pivot plate 23 and the rear frame 26 can be reinforced by the lower gusset 93, and the rigidity can be increased. Furthermore, since the main frame 22, the pivot plate 23, and the left and right rear frames 26 are connected to each other, the rigidity of the body frame 11 can be increased, and the outer shape and thickness of each can be further reduced. The body frame 11 can be reduced in size and weight.
  • the seat rail 24 includes a front straight portion 24a extending substantially parallel to the main frame 22 from the head pipe 21 to the rear lower side, and a substantially horizontal position from the rear end of the front straight portion 24a.
  • the intermediate straight portion 24b extending rearward and the rear straight portion 24c extending rearward and upward substantially on the extension line of the rear frame 26 from the rear end of the intermediate straight portion 24b. Therefore, the load acting on the head pipe 21 can be distributed and received by the front straight portion 24a and the main frame 22, and the head pipe 21 can be effectively supported.
  • the fuel tank 61 and the seat 62 can be supported with a simple structure by the substantially horizontal intermediate straight portion 24b, and the cost can be reduced.
  • the rear straight portion 24c on a substantially extended line of the rear frame 26, the rear portion of the vehicle body frame 11 can have an integrated appearance, and the appearance can be improved.
  • the left and right pivot plates 23 support the swing arm 16 that supports the rear wheel 17 at the rear end so as to be swingable via a pivot shaft 52. Since the periphery of the pivot plate 23 at the top of the vehicle body frame 11 has high rigidity, even the vehicle body frame 11 having a simple structure can support the swing arm 16 that receives a load from the rear wheel 17.
  • the swing arm 16 and the rear wheel 17 can be arranged in a space that can be formed behind the inverted triangle, so that the vehicle body space can be effectively used.
  • the engine 14 is disposed below the main frame 22, and the engine 14 is supported by the main frame 22 and the left and right pivot plates 23. Since the vehicle body frame 11 having a simple structure can support the heavy engine 14.
  • the engine 14 can be arranged in a space that is formed in the front of the inverted triangle, and the vehicle body space can be effectively used.
  • FIG. 10 is a perspective view showing the vehicle body frame 240 of the second embodiment.
  • the body frame 240 includes a head pipe 241, a main frame 242, a pair of left and right pivot plates 243, a pair of left and right seat rails 244, and a pair of left and right rear frames 246.
  • the main frame 242 is one member that extends obliquely downward and rearward from the rear portion of the central portion of the head pipe 241 in the longitudinal direction, and is the largest diameter round pipe member among the components of the vehicle body frame 240.
  • the joint between the head pipe 241 and the main frame 242 is reinforced by a front gusset 251 welded to the lower rear part of the head pipe 241 and the lower front part of the main frame 242.
  • the left and right pivot plates 243 are plate-like portions extending downward from the rear end portion of the main frame 242.
  • a pivot shaft 252 is attached to an intermediate portion in the vertical direction, and a support for rotatably supporting the stand at the lower end portion.
  • a bearing portion 253 that receives the shaft is attached.
  • the left and right seat rails 244 extend rearward from the front portion of the main frame 242.
  • the left and right rear frames 246 extend rearward and obliquely upward from the upper ends of the side portions of the left and right pivot plates 243.
  • the left and right rear gussets 254 are welded so as to straddle the left and right seat rails 244 and the left and right rear frames 246 at positions away from the joints between the left and right seat rails 244 and the left and right rear frames 246.
  • a rear cross member 68 is fixed to the rear gussets 254 and 254 so as to penetrate therethrough.
  • FIG. 11 is a left side view showing the vehicle body frame 240 of the second embodiment.
  • the main frame 242 linearly extends rearward and obliquely downward from the head pipe 241, and the left and right seat rails 244 are located at the front portion of the main frame 242, more specifically at the substantially central portion in the longitudinal direction of the front gusset 251 in a side view. It extends rearward from the corresponding part in a straight line and substantially horizontally.
  • the left and right rear frames 246 linearly extend rearward and obliquely upward from the upper portions of the left and right pivot plates 243 in a side view.
  • the main frame 242, the seat rail 244, and the rear frame 246 form a space 248 having an inverted triangular shape in side view.
  • FIG. 12 is a plan view showing the vehicle body frame 240 of the second embodiment.
  • the left and right seat rails 244 are linearly extended from the front straight portion 244a extending obliquely outward and rearward from the joint with the head pipe 241 and bent rearward from the rear end of the front straight portion 244a. And it is comprised integrally from the back straight part 244b extended mutually parallel.
  • Reference numerals 244g and 244h are seat support positions of the rear straight portion 244b that supports the seat 62 (see FIG. 1) when the leg portions 88 and 89 are applied via the rubber 87.
  • the left and right rear frames 246 are bent from the rear straight ends of the front straight portions 246a and the front straight portions 246a that extend obliquely outward and rearward from the left and right pivot plates 243 in the plan view, and the rear of the seat rails 244 is rearward.
  • the rear straight portion 246b (see FIG. 10) that extends linearly is integrally formed.
  • the main frame 242 extending rearward and downward from the head pipe 241, the pivot plate 243 extending downward from the rear end of the main frame 242, and the rear of the pivot plate 243 from above.
  • the seat rail 244 has front and rear sides. The front end of the main frame 242 extends linearly from the head pipe 241 toward the pivot plate 243, and a pair of left and right from the pivot plate 243 to the seat rail 244.
  • the rear frame 246 extends in a straight line, and the rear frame 246 The end is connected to the seat rail 244 in the vicinity of the seat support position 244h of the seat rail 244 with which the leg portion 89 provided on the seat 62 abuts, and the space 248 surrounded by the main frame 242, the seat rail 244, and the rear frame 246 is a side surface. Since the main frame 242, the seat rail 244, and the rear frame 246 are linear, the vehicle body frame configuration having as many linear portions as possible can be obtained. Therefore, a simple body frame structure can be obtained, the cost for bending can be suppressed, and the inexpensive body frame 240 can be obtained.
  • the seat rail 24 is configured by the front straight portion 24a, the intermediate straight portion 24b, and the rear straight portion 24c. It is good also as one straight part by making straight line shape by side view. Alternatively, the entire seat rail may be formed in a straight line in a side view and a plan view to form a single straight portion.
  • the main frame 22, the seat rail 24, and the rear frame 26 are each made of a round pipe material.
  • the present invention is not limited to this, and the cross section may be formed of an elliptical or oval pipe.
  • an elliptical shape or an oval shape may have a long axis extending vertically.
PCT/JP2013/082225 2013-11-29 2013-11-29 鞍乗り型車両の車体フレーム構造 WO2015079567A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR112016009696-7A BR112016009696B1 (pt) 2013-11-29 2013-11-29 Estrutura de quadro de chassi de veículo para um veículo do tipo de montar em selim
PCT/JP2013/082225 WO2015079567A1 (ja) 2013-11-29 2013-11-29 鞍乗り型車両の車体フレーム構造
CN201380081170.0A CN105764784B (zh) 2013-11-29 2013-11-29 鞍乘型车辆的车体框架结构
ARP140104428A AR100027A1 (es) 2013-11-29 2014-11-26 Estructura de bastidor de carrocería de vehículo para vehículo del tipo de conducción a horcajadas

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PCT/JP2013/082225 WO2015079567A1 (ja) 2013-11-29 2013-11-29 鞍乗り型車両の車体フレーム構造

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JPH11278346A (ja) * 1998-03-31 1999-10-12 Honda Motor Co Ltd 自動２輪車の車体フレーム構造
JP2003040167A (ja) * 2001-07-26 2003-02-13 Honda Motor Co Ltd 自動２輪車
JP2003072646A (ja) * 2001-08-31 2003-03-12 Honda Motor Co Ltd 自動２輪車の車体フレーム構造
JP2007099084A (ja) * 2005-10-04 2007-04-19 Honda Motor Co Ltd 車両のフレーム構造
JP2010083328A (ja) * 2008-09-30 2010-04-15 Honda Motor Co Ltd 自動二輪車

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JPH11278346A (ja) * 1998-03-31 1999-10-12 Honda Motor Co Ltd 自動２輪車の車体フレーム構造
JP2003040167A (ja) * 2001-07-26 2003-02-13 Honda Motor Co Ltd 自動２輪車
JP2003072646A (ja) * 2001-08-31 2003-03-12 Honda Motor Co Ltd 自動２輪車の車体フレーム構造
JP2007099084A (ja) * 2005-10-04 2007-04-19 Honda Motor Co Ltd 車両のフレーム構造
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BR112016009696B1 (pt) 2021-07-13
AR100027A1 (es) 2016-09-07
CN105764784B (zh) 2018-08-28
BR112016009696A2 (pt) 2017-08-01

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