WO2011104749A1 - 自動二輪車 - Google Patents
自動二輪車 Download PDFInfo
- Publication number
- WO2011104749A1 WO2011104749A1 PCT/JP2010/001215 JP2010001215W WO2011104749A1 WO 2011104749 A1 WO2011104749 A1 WO 2011104749A1 JP 2010001215 W JP2010001215 W JP 2010001215W WO 2011104749 A1 WO2011104749 A1 WO 2011104749A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engine
- hanger
- suspension
- fastening
- body frame
- Prior art date
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
Definitions
- the present invention relates to a motorcycle that suspends an engine on a body frame.
- a motorcycle in which a part of an engine is suspended on a body frame and the engine is fixedly supported (see, for example, Patent Document 1 below).
- the motorcycle described in Patent Document 1 includes a down tube extending downward from a head pipe of a vehicle body frame, a pair of left and right hanger plates extending rearward from the down tube, and a rear end portion of the hanger plate from the rear side of the hanger plate to the side of the vehicle body.
- An extending collar In the motorcycle described in Patent Document 1, a front hanger part in an engine having a cylinder extending in the vertical direction is overlapped on the outer end faces of these collars, and the front hanger part and the rear end part of the hanger plate are connected to the collar. Are connected by a bolt that penetrates through.
- An object of the present invention is to provide a motorcycle capable of reducing the weight of a motorcycle including an engine hanger bracket while improving the rigidity of the body frame.
- a vehicle body frame an engine having a hanger portion suspended from the vehicle body frame, a part of the vehicle body frame, and extending downward in a front portion of the vehicle body frame.
- a motorcycle including a pair of down tubes, a plate portion formed in a plate shape, and a collar portion provided on the plate portion, and an engine hanger bracket connecting the pair of down tubes and the hanger portion.
- the hanger portion is composed of an upper hanger portion and a lower hanger portion that are arranged vertically in the height direction of the engine, and the down tube, the plate portion, the collar portion, and the upper hanger portion, An upper suspension part for suspending the engine by fastening it in a linear arrangement in the vehicle width direction, the plate part and the lower part Characterized by and a lower suspension part for suspending the engine by fastening the hanger portion.
- the upper suspension part in addition to the configuration according to claim 1, includes a boss part provided in the down tube, the plate part in contact with the boss part, and the plate The collar portion fixed to the collar portion, the upper hanger portion contacting the collar portion, the pair of down tubes, the boss portion, the plate portion, the collar portion, and the upper hanger portion penetrating in the vehicle width direction. And an upper fastening member configured to be fastened from the outside of the pair of down tubes.
- the vehicle further includes a head pipe that forms a part of the vehicle body frame and rotatably holds a steering device for a front wheel.
- the tube extends linearly downward from the head pipe, and the upper suspension portion and the lower suspension portion are arranged linearly along a direction in which the down tube extends in a side view.
- a fastening portion for fastening the plate portion and the down tube is provided above the upper suspension portion. It is provided.
- the cover member which fastens the cover member which covers the side surface of a vehicle body between the said fastening part of the said plate part, and the said upper side suspension part A fastening stay is provided.
- the rear portion of the engine having a crankshaft extending in the vehicle width direction, and the longitudinal direction of the body frame.
- An upper hanger and the lower hanger are further provided with a rear hanger for suspending the engine by fastening an engine hanger stay that is provided at a substantially central portion and supports the rear of the engine.
- the crankshaft is vertically arranged with respect to the crankshaft in a side view, and the crankshaft is formed by connecting the upper suspension portion, the lower suspension portion, and the rear suspension portion in a side view. It is arrange
- a portion of the plate portion between the upper suspension portion and the lower suspension portion is a side view.
- the upper suspension part and the lower suspension part are curved so as to protrude forward with respect to a straight line connecting the upper suspension part and the lower suspension part.
- the upper suspension portion suspends the engine by fastening the down tube, the plate portion, the collar portion, and the upper hanger portion in a state of being linearly arranged in the vehicle width direction. . Therefore, the rigidity (lateral rigidity) of the body frame in the vehicle width direction can be increased.
- the lower suspension portion suspends the engine by directly fastening the plate portion and the lower hanger portion. Therefore, the weight of the engine can be directly supported, and the support rigidity of the engine can be increased. Therefore, the weight of the motorcycle including the engine hanger bracket can be reduced by improving the rigidity of the body frame and the support rigidity of the engine by sharing the upper suspension portion and the lower suspension portion. Further, since the lower suspension part has fewer constituent members than the upper suspension part, the vehicle width can be made compact. Therefore, the lower part of the engine can be reduced in weight, and the mass can be concentrated.
- the boss portion, the plate portion, the collar portion and the upper hanger portion arranged in the vehicle width direction are fastened from the outside of the down tube by the upper fastening member. be able to. Therefore, the engine which is a rigid member can be sandwiched by the down tube which is a part of the body frame. Therefore, the rigidity of the engine can be efficiently used to improve the rigidity of the body frame.
- the upper suspension portion and the lower suspension portion are arranged in a straight line along the direction in which the down tube extends in a side view. Therefore, the load direction when the engine is supported by the upper suspension portion and the lower suspension portion can be concentrated in the direction in which the down tube extends. Accordingly, the rigidity balance of the vehicle body frame can be improved, and the engine load can be supported by a lightweight structure.
- the fastening portion can receive the rotational load applied to the plate portion with the upper suspension portion as the rotation axis. Therefore, the support rigidity of the engine can be further increased.
- the cover member fastening stay for fastening the cover member covering the side surface of the vehicle body is provided between the fastening portion of the plate portion and the upper suspension portion. Therefore, the attachment strength of the cover member can be increased.
- the upper suspension portion, the lower suspension portion, and the rear suspension portion are arranged on the basis of the heavy crankshaft among the constituent members of the engine.
- the engine support load can be appropriately set in the lower suspension portion and the rear suspension portion. Therefore, the suspension position of the engine can be optimized, and the weight can be reduced in each of the suspension portions and the vehicle body frame. Further, the engine can contribute to the improvement of the rigidity of the body frame.
- the main load acting on the lower suspension is a tensile force due to the weight of the engine. Therefore, even if the part between an upper side suspension part and a lower side suspension part is curving, a plate part can fully exhibit the function which raises the support rigidity of an engine. Therefore, the portion between the upper suspension portion and the lower suspension portion in the plate portion can be made compact by curving the projection amount in accordance with the shape of the engine.
- 1 is a right side view showing a motorcycle according to an embodiment of the present invention. 1 is a right side view showing a motorcycle according to an embodiment of the present invention. It is a perspective view which shows the suspension structure of an engine. It is a left view which shows the suspension structure of an engine. It is a front view which shows the suspension structure of an engine. It is a right view which shows an engine suspension structure. It is a front view which shows an engine hanger bracket. It is a side view which shows an engine hanger bracket.
- FIG. 1 and 2 are right side views showing a motorcycle according to an embodiment of the present invention.
- FIG. 1 shows a state in which some cover members are removed.
- FIG. 2 shows a state in which all cover members are attached to the vehicle body.
- descriptions of front and rear, left and right, and up and down directions are in accordance with the directions viewed from the rider (driver) who rides the motorcycle unless otherwise specified.
- the arrow FR indicates the front of the vehicle
- the arrow LH indicates the left side of the vehicle
- the arrow UP indicates the upper side of the vehicle.
- the motorcycle 1 of the present embodiment includes a body frame 5, a front wheel 2, a front fork 3 as a steering device that pivotally supports the front wheel 2, and a steering device coupled to the front fork 3.
- Handle 4 engine 20 suspended on vehicle body frame 5, rear wheel 17 serving as a drive wheel, and rear wheel mounted on vehicle body frame 5 via a rear cushion (not shown) so as to be swingable up and down.
- a pivot plate 11 having a pivot portion 11 a that pivotably connects the swing arm 60 to the vehicle body frame 5, a fuel tank 51, a passenger seat 85, and a head Light 18, body cover 90, front fender 97, rear fender 98, and tank cover 62 (fuel tank covering a part of fuel tank 51)
- a front tank cover 63 covering the front portion of the fuel tank 51, a front tank side cover 64 and a side cover 65 covering a part of the side surface of the fuel tank 51 in the vehicle width direction, and an engine hanger for suspending the engine 20 on the vehicle body frame 5
- the bracket 100, the upper suspension portion 112, the lower suspension portion 124, the rear upper engine suspension portion 130a, and the rear lower engine suspension portion 130b are mainly configured.
- the body frame 5 is configured by integrally joining a plurality of types of steel materials by welding or the like. As shown in FIG. 1, the vehicle body frame 5 includes a head pipe 6, a main frame 7, a seat rail 8, a down tube 9, a rear stay 10, and a plurality of cross members (not shown).
- the head pipe 6 is disposed at the front end of the body frame 5 and supports a pair of front forks 3 that pivotally support the front wheels 2.
- a pair of main frames 7 are provided on the left and right. The pair of main frames 7 extend obliquely downward and rearward from the head pipe 6 in a side view. Lower ends of the pair of main frames 7 are connected to the pivot plate 11.
- a pair of seat rails 8 are provided on the left and right.
- the pair of seat rails 8 are connected to the main frame 7 at one end side when viewed from the side, and the other end side extends obliquely upward and rearward with a relatively steep inclination.
- the pair of down tubes 9 extends obliquely downward and rearward from the head pipe 6 in a side view. Details of the down tube 9 will be described later.
- a pair of rear stays 10 are provided on the left and right. One end of the pair of rear stays 10 is connected to the rear ends of the pair of pivot plates 11, and the other end of the pair of rear stays 10 is connected to the rear portions of the pair of seat rails 8.
- the cross member (not shown) is made of, for example, a pipe member extending in the left-right direction, and couples a pair of frames (main frame 7, down tube 9, seat rail 8, etc.) in the left-right direction.
- the cross member 9a of the down tube 9 will be described later.
- a pair of front forks 3 are provided on the left and right.
- the upper ends of the pair of front forks 3 are connected to the lower end of the handle 4.
- the upper ends of the pair of front forks 3 are supported by a steering stem (not shown) rotatably supported by the head pipe 6 and a bridge (not shown) fixed to the upper and lower ends of the steering stem. Is done.
- the lower ends of the pair of front forks 3 pivotally support the front wheel 2 in a rotatable manner.
- the headlight 18 is disposed in front of the head pipe 6 and above the front fender 97, and irradiates the front of the vehicle body.
- the headlight 18 is fixed to a headlight support stay (not shown) fixed to the vehicle body frame 5.
- the engine 20 is a prime mover (for example, a four-cycle single-cylinder water-cooled engine) of the motorcycle 1, and is mounted at a substantially central portion of the vehicle body frame 5 in the front-rear direction as shown in FIG.
- the engine 20 is disposed so that the crankshaft 26 is along the left-right direction of the vehicle body.
- a water-cooled radiator 25 that cools the engine 20 and an exhaust pipe 28 that exhausts exhaust gas are connected to the engine 20.
- a muffler 30 is connected to the rear end of the exhaust pipe 28 to mute the exhaust sound.
- the fuel tank 51 stores fuel to be supplied to the engine 20.
- the fuel tank 51 is disposed behind the head pipe 6 and in front of the seat 85, and is fixed to the upper part of the vehicle body frame 5 (the main frame 7 and the seat rail 8).
- the passenger seat 85 includes a main seat 85a on which a driver is seated and a pillion seat 85b on which a rear passenger is seated.
- the passenger seating seat 85 is supported on top of the pair of seat rails 8.
- the body cover 90 covers the vehicle body frame 5.
- the body cover 90 includes a front center upper cover 91, a front upper side cover 95, an inner cowl 92 as a cover member, a first front side cowl 96 as a cover member, a second front side cowl 99, and an under cowl 93. And a rear cowl 94.
- the front center upper cover 91 is disposed above the headlight 18 and in front of the head pipe 6, and is fastened to a front upper side cover 95 (described later).
- a pair of front upper side covers 95 are provided on the left and right sides, and are arranged on the side of the headlight 18 as shown in FIGS. Specifically, the front upper side cover 95 is disposed between the headlight 18 and the fuel tank 51 in a side view and covers the head pipe 6 from the side.
- the front upper side cover 95 is formed in a substantially triangular shape that narrows from the front toward the rear in a side view.
- the front upper side cover 95 has a front portion fastened to the headlight 18 or a headlight support stay (not shown), and a lower end portion locked to the first front side cowl 96.
- a pair of first front side cowls 96 are provided on the left and right, and are arranged at the lower part of the front upper side cover 95 as shown in FIG.
- the first front side cowl 96 is disposed so as to cover the body frame 5 and the side surfaces of the engine 20.
- the first front side cowl 96 is formed in a substantially triangular shape that narrows from the rear to the front in a side view, and a part of the rear end portion is cut out in a substantially triangular shape.
- the upper part of the first front side cowl 96 is locked to the lower part of the front upper side cover 95, and the lower part thereof is connected to the vehicle body via a cover member fastening stay 146 (see FIG. 1). Fastened to the frame 5.
- the rear part of the first front side cowl 96 is fastened to the second front side cowl 99.
- a locking projection (not shown) is provided on the inner surface of the rear end side of the upper portion of the first front side cowl 96.
- the first front side cowl 96 has a locking clip 64a (see FIGS. 1 and 6) provided on the lower end side of the rear portion of the front tank side cover 64 with a resin clip (not shown). Is inserted into the front tank side cover 64.
- a pair of second front side cowls 99 are provided on the left and right sides, and are connected to the rear of the first front side cowl 96 to cover the body frame 5 and the side surfaces of the engine 20, as shown in FIG.
- the second front side cowl 99 is formed in a substantially L shape in a side view.
- the second front side cowl 99 has one end connected to the lower end edge of the upper portion of the first front side cowl 96 and a second end connected to the lower portion of the first front side cowl 96.
- the second front side cowl 99 superposes its cowl alignment surface (not shown) and the cowl alignment surface (not shown) of the first front side cowl 96, and this overlapped portion is used as a fastening member. It is connected to the first front side cowl 96 by fastening with (not shown).
- the inner cowl 92 (see FIGS. 1 and 3) is disposed on the inner side in the vehicle width direction of the first front side cowl 96, and is fixed to the first front side cowl 96.
- the upper part of the inner cowl 92 is locked to the lower part of the front upper side cover 95.
- the lower part of the inner cowl 92 is fastened to a cover member fastening stay 146 (see FIGS. 1 and 3).
- the under cowl 93 covers the exhaust pipe 28 (see FIG. 5) located below the engine 20 from both sides of the vehicle body.
- the under cowl 93 is formed in a substantially triangular shape spreading from the front to the rear in a side view.
- the upper part of the front side of the under cowl 93 is fastened to a cover member fastening stay 146 (see FIGS. 1, 3 and 4).
- the rear portion of the under cowl 93 is fastened to the rear portion of the vehicle body frame 5.
- the rear cowl 94 is composed of a plurality of cover members, and covers the rear portion of the seat rail 8 and the rear portion of the rear stay 10.
- the rear cowl 94 is formed so as to extend from a substantially central portion of the vehicle body toward the pillion seat 85b and to become narrower upward in a side view.
- the front fender 97 is fixed to the front fork 3 and covers the upper part of the front wheel 2.
- the rear fender 98 is fixed to the seat rail 8 and covers the rear wheel 17 from behind.
- FIG. 3 is a perspective view showing a suspension structure of the engine.
- FIG. 4 is a left side view showing the engine suspension structure.
- FIG. 5 is a front view showing a suspension structure of the engine.
- FIG. 6 is a right side view showing the engine suspension structure.
- FIG. 7 is a front view showing the engine hanger bracket.
- FIG. 8 is a side view showing the engine hanger bracket.
- the motorcycle 1 of this embodiment includes a body frame 5, an engine 20 having a hanger portion 21 suspended on the body frame 5, and a pair of down tubes 9 in the vehicle width direction.
- An engine hanger bracket 100 that connects the pair of down tubes 9 and the hanger part 21, an upper suspension part 112, a lower suspension part 124, a rear upper engine suspension part 130a, and a rear lower engine suspension part 130b for suspending the engine 20. .
- the engine 20 includes a crankcase 27 that houses a crankshaft 26 and the like. At the front portion of the crankcase 27, there is a hanger portion 21 suspended from the vehicle body frame 5 (down tube 9). As shown in FIGS. 3 and 5, the hanger portion 21 includes an upper hanger portion 22 and a lower hanger portion 23 that are arranged vertically in the height direction of the engine 20 (crankcase 27).
- the upper hanger part 22 and the lower hanger part 23 protrude forward in a substantially semicircular shape in a side view.
- the upper hanger portion 22 is provided with a through hole 22a for inserting an upper hanger bolt 114 (described later) in the vehicle width direction.
- the lower hanger portion 23 is provided with a through hole 23a for inserting a lower hanger bolt 126 (described later) in the vehicle width direction.
- a through hole (not shown) is provided in the upper part of the rear part of the engine 20.
- a fastening bolt 133 (see FIGS. 4 and 6) is inserted through the through hole.
- This through hole constitutes a rear upper engine suspension portion 130a (a rear suspension portion 130 described later).
- a through hole (not shown) is provided in the lower part of the rear part of the engine 20.
- a fastening bolt 134a (see FIG. 4) is inserted through the through hole. This through hole constitutes the rear lower engine suspension 130b.
- the body frame 5 includes a head pipe 6, a pair of left and right main frames 7, a pair of left and right seat rails 8, a pair of left and right down tubes 9, a pair of left and right rear stays 10, and a plurality of rear stays 10.
- a cross member (not shown except for the cross member 9a (see FIG. 5)), a pair of left and right pivot plates 11, a pair of left and right engine hanger upper stays 132 that suspend the upper part of the rear portion of the engine 20, and an engine 20 and a pair of left and right engine hanger lower stays 134 that suspend the lower part of the rear part of the rear side.
- the pair of down tubes 9 form part of the body frame 5 and extend downward at the front of the body frame 5. As shown in FIGS. 3 and 5, the pair of down tubes 9 are connected by a cross member 9 a extending in the left-right direction at an intermediate position in the up-down direction.
- the down tube 9 is connected to the main frame 7 by a plurality of subframes 9b, 9c, 9d, and 9e in a side view.
- the sub frames 9b, 9c, 9d, and 9e are provided between the down tube 9 and the main frame 7 and have a truss structure. That is, the sub frames 9b, 9c, 9d, and 9e reinforce the longitudinal rigidity of the vehicle body frame 5.
- the down tube 9 is made of a steel tube having a circular cross section, for example.
- the down tube 9 has a first boss portion (boss portion) 141 and a second boss portion 142 as shown in FIGS. 3 and 5.
- the first boss portion 141 is a cylindrical member extending from the lower end portion of the down tube 9 inward and outward in the vehicle width direction.
- hub part 141 has the through-hole 141a which penetrates the upper hanger bolt 114 (after-mentioned) in a center axis
- the second boss 142 is a cylindrical member that is spaced apart above the first boss 141 and is provided below the cross member 9a and extends from the down tube 9 in the vehicle width direction.
- hub part 142 has the through-hole 142a which penetrates the fastening volt
- the pair of pivot plates 11 is provided at a substantially central portion in the front-rear direction of the vehicle body frame 5.
- the upper portions of the pair of pivot plates 11 are connected by an upper cross member (not shown) extending in the vehicle width direction.
- the lower portions of the pair of pivot plates 11 are connected by a lower cross member (not shown) extending in the vehicle width direction.
- the upper stay 132 for the engine hanger is formed in a plate shape.
- the engine hanger upper stay 132 is formed to extend forward from the upper cross member.
- the engine hanger upper stay 132 is provided with a through hole (not shown) through which the fastening bolt 133 is inserted.
- the upper part of the rear part of the engine 20 is fastened to the vehicle body frame 5 by an engine hanger upper stay 132 by a fastening bolt 133 and a nut 133a (see FIG. 6) screwed to the fastening bolt 133.
- the engine hanger upper stay 132, the fastening bolt 133, and the nut 133a constitute a rear upper engine suspension 130a (a rear suspension 130 described later).
- the engine hanger lower stay 134 is formed in a plate shape.
- the engine hanger lower stay 134 is formed to extend forward from the lower cross member.
- the engine hanger lower stay 134 is provided with a through hole (not shown) through which the fastening bolt 134a is inserted.
- the lower part of the rear part of the engine 20 is fastened to the vehicle body frame 5 by a fastening bolt 134a and a nut (not shown) screwed to the fastening bolt 134a in an engine hanger lower stay 134.
- the engine hanger lower stay 134, the fastening bolt 134a, and the nut screwed to the fastening bolt 134a constitute a rear lower engine suspension portion 130b.
- a support stay 134b extends rearward from the lower cross member.
- the support stay 134b supports a link mechanism of a rear cushion (not shown).
- FIGS. A pair of engine hanger brackets 100 are provided in the vehicle width direction of the motorcycle 1. 7 and 8, the engine hanger bracket 100 is shown on the left side of the motorcycle 1 in the vehicle width direction. In the following description, the engine hanger bracket 100 disposed on the left side in the vehicle width direction will be mainly described.
- the engine hanger bracket 100 includes a plate portion 101 formed in a plate shape, a welding nut 104 fixed to the plate portion 101, and a collar portion 106 fixed to the plate portion 101.
- the engine hanger bracket 100 is made of, for example, steel.
- the plate portion 101 is integrally composed of a first plate portion 101a, a second plate portion 101b, and a third plate portion 101c. As shown in FIG. 8, the plate portion 101 has a substantially square shape in a side view, and has a curved portion 111 that protrudes forward and curves. The curved portion 111 is formed between the through hole 108 (described later) and the through hole 110 (described later) in the plate portion 101 so as to protrude forward.
- a first bent portion 102a is formed at the boundary between the first plate portion 101a and the second plate portion 101b.
- a second bent portion 102b is formed at the boundary between the second plate portion 101b and the third plate portion 101c.
- the plate portion 101 is bent at the first bent portion 102a and the second bent portion 102b.
- the second plate portion 101 b extends downward from the lower end portion (first bent portion 102 a) of the first plate portion 101 a in a front view, and in the vehicle width direction. Inclined to the right.
- the third plate portion 101c extends downward from the lower end portion (second bent portion 102b) of the second plate portion 101b in a front view.
- the first plate portion 101a and the third plate portion 101c are arranged in parallel in a front view.
- a welding nut 104 having a screw hole 104a and a cylindrical collar portion 106 are provided on the right side surface in the vehicle width direction of the first plate portion 101a.
- the welding nut 104 is fixed to the upper part of the first plate portion 101a by welding.
- a through hole 107 is provided coaxially with the welding nut 104 at a location where the welding nut 104 is fixed.
- the collar portion 106 is fixed to the lower portion of the first plate portion 101a by welding.
- a through hole 108 is provided at a location where the collar portion 106 is fixed, coaxially with the through hole 106a of the collar portion 106.
- the upper hanger bolt 114 is inserted into the through hole 108.
- a through hole 109 is provided between the welding nut 104 and the collar portion 106 in the first plate portion 101a.
- a bolt 148 (see FIG. 3) for fixing a cover member fastening stay 146 (described later) is inserted into the through hole 109.
- a through hole 110 is provided in the third plate portion 101c. The lower hanger bolt 126 is inserted into the through hole 110.
- the configuration of the engine hanger bracket 100 disposed on the right side in the vehicle width direction of the motorcycle 1 is disposed on the left side in the vehicle width direction. Since the configuration of the engine hanger bracket 100 is substantially the same as that of the engine hanger bracket 100, the repeated description is omitted.
- the upper suspension portion 112 is configured by fastening the down tube 9, the plate portion 101, the collar portion 106, and the upper hanger portion 22 in a state where they are linearly arranged in the vehicle width direction. 20 is suspended.
- the upper suspension portion 112 includes a first boss portion 141 and a second boss portion 142 provided in the down tube 9, a plate portion 101 that contacts the first boss portion 141 and the second boss portion 142, and a plate A collar portion 106 fixed to the portion 101, an upper hanger portion 22 that contacts the collar portion 106, a pair of down tubes 9, a first boss portion 141, a second boss portion 142, a plate portion 101, a collar portion 106, and an upper side
- An upper hanger bolt 114 serving as an upper fastening member that is disposed through the hanger portion 22 in the vehicle width direction and is configured to be fastened from the outside of the pair of down tubes 9, and a nut 114 a that is screwed to the upper hanger bolt 114.
- a square rigid body is formed by the pair of down tubes 9, the cross member 9a, and the upper suspension portion 112 in front view. Therefore, the upper hanger portion 22 of the engine 20 can contribute to the improvement of the rigidity of the vehicle body frame 5.
- the lower suspension part 124 suspends the engine 20 by fastening the plate part 101 and the lower hanger part 23.
- the lower suspension part 124 includes a plate part 101, a lower hanger part 23 that comes into contact with the plate part 101, a lower hanger bolt 126, and a nut 126 a that is screwed into the lower hanger bolt 126.
- the lower hanger bolt 126 is disposed so as to penetrate the plate portion 101 and the lower hanger portion 23 in the vehicle width direction, and can be directly fastened from the outside of the plate portion 101.
- the tip of the lower hanger bolt 126 is fastened by a nut 126a.
- the upper suspension portion 112 and the lower suspension portion 124 configured as described above are arranged in a straight line along the direction in which the down tube 9 extends in a side view. Further, as shown in FIG. 4, the upper suspension portion 112 and the lower suspension portion 124 are respectively disposed above and below the crankshaft 26 in a side view.
- the curved portion 111 of the plate portion 101 is formed in a portion of the plate portion 101 between the upper suspension portion 112 and the lower suspension portion 124, and in side view, the upper suspension portion 112 and the lower suspension portion. It curves so that it may protrude ahead with respect to the straight line 135a which ties the suspension part 124.
- the rear suspension 130 includes a pair of engine hanger upper stays 132, a fastening bolt 133, and a nut 133 a (see FIG. 6) that is screwed into the fastening bolt 133.
- the upper part of the rear part of the engine 20 is fastened to the engine hanger upper stay 132 by fastening bolts 133 and nuts 133a.
- the rear suspension 130 suspends the upper part of the rear portion of the engine 20.
- the crankshaft 26 is disposed in a triangular region 135 formed by connecting the upper suspension portion 112, the lower suspension portion 124, and the rear suspension portion 130 in a side view.
- the triangular area 135 includes three straight lines 135a, 135b, and 135c.
- the straight line 135a is a straight line connecting the upper suspension part 112 and the lower suspension part 124.
- the straight line 135b is a straight line connecting the upper suspension part 112 and the rear suspension part 130.
- the straight line 135 c is a straight line connecting the lower suspension part 124 and the rear suspension part 130.
- the subframes 9b, 9c, 9d, and 9e are provided between the down tube 9 and the main frame 7 to form a truss structure.
- the straight line 135b constituting the region 135 is substantially parallel to the subframe 9c.
- the straight line 135c constituting the region 135 is substantially parallel to the subframe 9e. Therefore, according to the suspension structure of the engine 20, the engine 20 itself can reinforce the longitudinal rigidity of the vehicle body frame 5 similarly to the sub frames 9c and 9e.
- a fastening bolt 118 and a nut 118a as a fastening part for fastening the upper end part of the plate part 101 and the second boss part 142 of the down tube 9 are provided above the upper suspension part 112, a fastening bolt 118 and a nut 118a as a fastening part for fastening the upper end part of the plate part 101 and the second boss part 142 of the down tube 9 are provided.
- the fastening bolt 118 is inserted into the second boss portion 142 and the through hole 107 of the plate portion 101 and screwed into the welding nut 104 of the plate portion 101.
- the upper end portion of the plate portion 101 is fastened to the down tube 9.
- a cover member fastening stay 146 is provided between the fastening bolt 118 fastened to the plate part 101 and the upper suspension part 112.
- the cover member fastening stay 146 is a metal member that fastens the inner cowl 92 as a cover member that covers the side surface of the vehicle body.
- the cover member fastening stay 146 is fastened to the plate portion 101 by a bolt 148 and a nut 149.
- the bolt 148 is inserted through the through hole 109 of the plate portion 101. Then, a nut 149 is screwed to the tip of the bolt 148.
- the motorcycle 1 of the present embodiment includes a body frame 5, an engine 20 having a hanger portion 21, a pair of down tubes 9, a plate portion 101 and a collar portion 106, and the pair of down tubes 9 and hanger portions 21.
- the upper hanger for suspending the engine 20 by fastening the engine hanger bracket 100, the down tube 9, the plate portion 101, the collar portion 106, and the upper hanger portion 22 in a linear arrangement in the vehicle width direction.
- Part 112 and a lower suspension part 124 that suspends engine 20 by fastening plate part 101 and lower hanger part 23.
- the upper suspension part 112 suspends the engine 20 by fastening the down tube 9, the plate part 101, the collar part 106 and the upper hanger part 22 in a state of being arranged linearly in the vehicle width direction. Therefore, the rigidity (lateral rigidity) of the vehicle body frame 5 in the vehicle width direction can be increased.
- the lower suspension part 124 suspends the engine 20 by directly fastening the plate part 101 and the lower hanger part 23. Therefore, the weight of the engine 20 can be supported directly, and the support rigidity of the engine 20 can be increased. Therefore, weight reduction can be achieved by sharing and improving the rigidity of the body frame 5 and the support rigidity of the engine 20 by the upper suspension part 112 and the lower suspension part 124.
- the vehicle width can be made compact. Therefore, the lower part of the engine 20 can be reduced in weight, and mass (mass) can be concentrated.
- the upper suspension portion 112 includes the first boss portion 141 and the second boss portion 142, the plate portion 101, the collar portion 106, the upper hanger portion 22, and a pair of down hangers.
- An upper hanger bolt 114 that is disposed through the tube 9, the boss portions 141 and 142, the plate portion 101, the collar portion 106, and the upper hanger portion 22 in the vehicle width direction and that can be fastened from the outside of the pair of down tubes 9; .
- the boss portions 141 and 142, the plate portion 101, the collar portion 106 and the upper hanger portion 22 arranged in the vehicle width direction are fastened from the outside of the down tube 9 by the upper fastening member. Can do.
- the down tube 9 can sandwich the engine 20 that is a rigid member. Therefore, the rigidity of the engine 20 can be efficiently used to improve the rigidity of the body frame 5.
- the motorcycle 1 of the present embodiment further includes a head pipe 6 that forms a part of the body frame 5 and rotatably holds the front fork 3, and the down tube 9 is directed downward from the head pipe 6.
- the upper suspension portion 112 and the lower suspension portion 124 are linearly arranged along the direction in which the down tube 9 extends in a side view.
- the load direction when the engine 20 is supported by the upper suspension portion 112 and the lower suspension portion 124 can be concentrated in the direction in which the down tube 9 extends. Therefore, the rigidity balance of the vehicle body frame 5 can be improved, and the load of the engine 20 can be supported by a lightweight structure.
- a fastening bolt 118 that fastens the plate portion 101 and the down tube 9 is provided above the upper suspension portion 112. Therefore, the rotational load applied to the plate portion 101 can be received by the fastening bolt 118 with the upper suspension portion 112 as the rotation axis. Therefore, the support rigidity of the engine 20 can be further increased.
- the cover member fastening stay 146 for fastening the inner cowl 92 is provided between the fastening bolt 118 of the plate portion 101 and the upper suspension portion 112. Therefore, the attachment strength of the inner cowl 92 can be increased.
- the motorcycle 1 of the present embodiment further includes a rear suspension 130, and the upper suspension 112 and the lower suspension 124 are respectively disposed above and below the crankshaft 26 in a side view,
- the crankshaft 26 is disposed in a triangular region 135 formed by connecting the upper suspension portion 112, the lower suspension portion 124, and the rear suspension portion 130 in a side view.
- the support load of the engine 20 can be set appropriately. Therefore, the suspension position of the engine 20 can be optimized, and the upper suspension part 112, the lower suspension part 124, the rear suspension part 130, and the vehicle body frame 5 can be reduced in weight. Further, the engine 20 can contribute to the improvement of the rigidity of the body frame 5.
- the portion between the upper suspension portion 112 and the lower suspension portion 124 in the plate portion 101 is a straight line 135a connecting the upper suspension portion 112 and the lower suspension portion 124 in a side view. Is curved so as to protrude forward.
- the main load acting on the lower suspension part 124 is a tensile force due to the weight of the engine 20. Therefore, the curved portion 111 of the plate portion 101 can sufficiently exhibit the function of increasing the support rigidity of the engine 20. Therefore, the curved portion 111 of the plate portion 101 can be made compact by providing the curved portion 111 with the protrusion amount suppressed in accordance with the shape of the engine 20.
- the plate portion 101 of the engine hanger bracket 100 has been described as having a curved portion 111 that is formed in a substantially square shape in a side view and protrudes forward, but is not limited thereto.
- the engine hanger bracket 100 may be configured so that the plate portion 101 is linear as a whole.
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Abstract
Description
この特許文献1に記載の自動二輪車は、車体フレームのヘッドパイプから下方へ延びるダウンチューブと、このダウンチューブから後方へ延びる左右一対のハンガープレートと、これらハンガープレートの後端部から車体側方へ延びるカラーと、を備える。特許文献1に記載の自動二輪車は、これらカラーの外側端面に、上下方向に延びるシリンダを有するエンジンにおける前部ハンガー部を重ね、これら前部ハンガー部と前記ハンガープレートの後端部とを、カラーを貫通するボルトで連結して構成されている。
一対のダウンチューブ9は、側面視で、ヘッドパイプ6から斜め下後方に延びている。ダウンチューブ9の詳細については、後述する。
乗員着座用のシート85は、運転者が着座するメインシート85aと、後部同乗者が着座するピリオンシート85bとからなる。乗員着座用のシート85は、一対のシートレール8の上部に支持されている。
また、第1フロントサイドカウル96の上部における後端側の内面には、係止用突起(図示せず)が設けられている。第1フロントサイドカウル96は、この係止用突起をフロントタンクサイドカバー64の後部下端側に設けられた係止部64a(図1及び図6参照)に、樹脂クリップ(図示せず)を介して挿入することで、フロントタンクサイドカバー64に係止される。
リアカウル94は、複数のカバー部材から構成され、シートレール8の後部及びリアステー10の後部を覆う。リアカウル94は、側面視で、車体の略中央部からピリオンシート85bに向かって広がるように延び、かつ、後ろ上がりに細くなるように形成される。
また、エンジン20の後部における下部には、貫通穴(図示せず)が設けられている。この貫通穴には、締結ボルト134a(図4参照)が挿通される。この貫通穴は、後部下方エンジン懸架部130bを構成する。
なお、前記下部クロスメンバには、支持ステー134b(図4参照)が後方に延出されている。この支持ステー134bは、図示しないリアクッションのリンク機構を支持する。
第3プレート部101cには、貫通穴110が設けられている。貫通穴110には、下側ハンガボルト126が挿通される。
図3から図6に示すように、上側懸架部112は、ダウンチューブ9、プレート部101、カラー部106及び上側ハンガ部22を、車幅方向において直線状に配置した状態で締結することによりエンジン20を懸架するものである。
また、上側懸架部112及び前記下側懸架部124は、図4に示すように、側面視でクランクシャフト26に対してそれぞれ上下に配置される。
本実施形態の自動二輪車1は、車体フレーム5と、ハンガ部21を有するエンジン20と、一対のダウンチューブ9と、プレート部101及びカラー部106を有し、一対のダウンチューブ9とハンガ部21とを連結するエンジンハンガブラケット100と、ダウンチューブ9、プレート部101、カラー部106及び上側ハンガ部22を、車幅方向において直線状に配置した状態で締結することによりエンジン20を懸架する上側懸架部112と、プレート部101及び下側ハンガ部23を締結することによりエンジン20を懸架する下側懸架部124と、を備える。
例えば、エンジンハンガブラケット100のプレート部101は、側面視で略く字形状に形成され、前方に突出して湾曲する湾曲部111を有しているものとして説明したが、これに制限されない。プレート部101が全体として直線状となるように、エンジンハンガブラケット100を構成してもよい。
2 前輪
3 フロントフォーク(操舵装置)
4 ハンドル(操舵装置)
5 車体フレーム
6 ヘッドパイプ
9 ダウンチューブ
20 エンジン
21 ハンガ部
22 上側ハンガ部
23 下側ハンガ部
26 クランクシャト
92 インナーカウル(カバー部材)
96 第1フロントサイドカウル(カバー部材)
101 プレート部
106 カラー部
112 上側懸架部
114 上側ハンガボルト(上側締結部材)
118 締結ボルト(締結部)
118a ナット(締結部)
124 下側懸架部
130 後側懸架部
130a 後部上方エンジン懸架部(後側懸架部)
132 エンジンハンガ用上部ステー(エンジンハンガ用ステー)
135 領域
135a 直線
141 第1ボス部(ボス部)
142 第2ボス部(ボス部)
146 カバー部材締結用ステー
Claims (7)
- 車体フレームと、
前記車体フレームに懸架されるハンガ部を有するエンジンと、
前記車体フレームの一部をなし、該車体フレームの前部において下方に延びる車幅方向に一対のダウンチューブと、
板状に形成されたプレート部及び該プレート部に設けられたカラー部を有し、前記一対のダウンチューブと前記ハンガ部とを連結するエンジンハンガブラケットと、を備える自動二輪車であって、
前記ハンガ部は、前記エンジンの高さ方向において上下に配置される上側ハンガ部及び下側ハンガ部からなり、
前記ダウンチューブ、前記プレート部、前記カラー部及び前記上側ハンガ部を、車幅方向において直線状に配置した状態で締結することにより前記エンジンを懸架する上側懸架部と、
前記プレート部及び前記下側ハンガ部を締結することにより前記エンジンを懸架する下側懸架部と、を備える自動二輪車。 - 前記上側懸架部は、
前記ダウンチューブに設けられるボス部と、
該ボス部に当接する前記プレート部と、
該プレート部に固定される前記カラー部と、
該カラー部に当接する前記上側ハンガ部と、
前記一対のダウンチューブ、前記ボス部、前記プレート部、前記カラー部及び前記上側ハンガ部を車幅方向に貫通して配置され、該一対のダウンチューブの外側から締結可能に構成される上側締結部材と、を備える請求項1に記載の自動二輪車。 - 前記車体フレームの一部をなし、前輪の操舵装置を回転自在に保持するヘッドパイプを更に備え、
前記ダウンチューブは、前記ヘッドパイプから下方に向けて直線状に延び、
前記上側懸架部及び前記下側懸架部は、側面視で、前記ダウンチューブが延びる方向に沿って直線状に配置される請求項1又は2に記載の自動二輪車。 - 前記上側懸架部の上方に、前記プレート部と前記ダウンチューブとを締結する締結部が設けられる請求項1から3のいずれか一つに記載の自動二輪車。
- 前記プレート部の前記締結部と前記上側懸架部との間に、車体の側面を覆うカバー部材を締結するカバー部材締結用ステーが設けられる請求項4に記載の自動二輪車。
- 車幅方向に延びるクランクシャフトを有する前記エンジンの後部と、前記車体フレームの前後方向における略中央部に設けられ、且つ前記エンジンの後部を支持するエンジンハンガ用ステーとを締結することにより、前記エンジンを懸架する後側懸架部を更に備え、
前記上側懸架部及び前記下側懸架部は、側面視で前記クランクシャフトに対してそれぞれ上下に配置されると共に、
前記クランクシャフトは、側面視で、前記上側懸架部、前記下側懸架部及び前記後側懸架部を結んで形成される三角形状の領域内に配置される請求項1から5のいずれか一つに記載の自動二輪車。 - 前記プレート部における前記上側懸架部及び前記下側懸架部の間の部分は、側面視で、該上側懸架部及び該下側懸架部を結ぶ直線に対して前方に突出するように湾曲している請求項1から6のいずれか一つに記載の自動二輪車。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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EP10846418.1A EP2540605B1 (en) | 2010-02-23 | 2010-02-23 | Motorcycle |
US13/580,059 US8443925B2 (en) | 2010-02-23 | 2010-02-23 | Motorcycle |
JP2012501517A JP5373181B2 (ja) | 2010-02-23 | 2010-02-23 | 自動二輪車 |
BR112012020871-3A BR112012020871B1 (pt) | 2010-02-23 | 2010-02-23 | Motocicleta |
ES10846418.1T ES2486680T3 (es) | 2010-02-23 | 2010-02-23 | Motocicleta |
PCT/JP2010/001215 WO2011104749A1 (ja) | 2010-02-23 | 2010-02-23 | 自動二輪車 |
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PCT/JP2010/001215 WO2011104749A1 (ja) | 2010-02-23 | 2010-02-23 | 自動二輪車 |
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PCT/JP2010/001215 WO2011104749A1 (ja) | 2010-02-23 | 2010-02-23 | 自動二輪車 |
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US (1) | US8443925B2 (ja) |
EP (1) | EP2540605B1 (ja) |
JP (1) | JP5373181B2 (ja) |
BR (1) | BR112012020871B1 (ja) |
ES (1) | ES2486680T3 (ja) |
WO (1) | WO2011104749A1 (ja) |
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JP5140529B2 (ja) * | 2008-09-25 | 2013-02-06 | 本田技研工業株式会社 | 自動二輪車用単気筒エンジン |
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JP5410238B2 (ja) * | 2009-02-18 | 2014-02-05 | 本田技研工業株式会社 | 鞍乗型車両 |
JP5620809B2 (ja) * | 2010-12-24 | 2014-11-05 | 川崎重工業株式会社 | 自動二輪車における車両装備品の搭載構造 |
JP5618856B2 (ja) * | 2011-02-14 | 2014-11-05 | 本田技研工業株式会社 | 自動二輪車の車体フレーム |
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2010
- 2010-02-23 EP EP10846418.1A patent/EP2540605B1/en not_active Not-in-force
- 2010-02-23 WO PCT/JP2010/001215 patent/WO2011104749A1/ja active Application Filing
- 2010-02-23 US US13/580,059 patent/US8443925B2/en active Active
- 2010-02-23 ES ES10846418.1T patent/ES2486680T3/es active Active
- 2010-02-23 JP JP2012501517A patent/JP5373181B2/ja active Active
- 2010-02-23 BR BR112012020871-3A patent/BR112012020871B1/pt active IP Right Grant
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JPS57110574A (en) * | 1980-12-26 | 1982-07-09 | Yamaha Motor Co Ltd | Rubber mount structure of engine in autobicycle |
JPS6236990U (ja) * | 1985-08-26 | 1987-03-04 | ||
JPS6266898U (ja) * | 1985-10-17 | 1987-04-25 | ||
JPH10236376A (ja) | 1997-02-27 | 1998-09-08 | Honda Motor Co Ltd | 自動二輪車のエンジン懸架装置 |
JP2005014885A (ja) * | 2003-05-30 | 2005-01-20 | Honda Motor Co Ltd | 自動二輪車のエンジン支持構造 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021160546A (ja) * | 2020-03-31 | 2021-10-11 | 本田技研工業株式会社 | エンジンハンガ構造 |
JP7339199B2 (ja) | 2020-03-31 | 2023-09-05 | 本田技研工業株式会社 | エンジンハンガ構造 |
Also Published As
Publication number | Publication date |
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US20120318598A1 (en) | 2012-12-20 |
JP5373181B2 (ja) | 2013-12-18 |
EP2540605A4 (en) | 2013-10-23 |
ES2486680T3 (es) | 2014-08-19 |
EP2540605B1 (en) | 2014-07-23 |
BR112012020871B1 (pt) | 2019-04-24 |
BR112012020871A2 (pt) | 2016-05-03 |
EP2540605A1 (en) | 2013-01-02 |
JPWO2011104749A1 (ja) | 2013-06-17 |
US8443925B2 (en) | 2013-05-21 |
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