JP2011185216A - Intake device of motorcycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intake device of a motorcycle which ensures the capacity of an air cleaner while preventing interference of the air cleaner, a connection part, and an actuator with each other. <P>SOLUTION: The intake device of the motorcycle includes a throttle body 71 connected to an intake port 53a of an engine 50 and having a throttle valve 72 therein, an actuator 75 to drive the throttle valve 72, an air cleaner 80 arranged above the throttle body 71, and connected to the upstream end of the throttle body 71, a connection part 62 connected to the air cleaner 80, and a duct 63 connected to the upstream end of the connection part 62 to guide the sucked air to the air cleaner 80. The connection part 62 is arranged in front of and below the air cleaner 80, and the actuator 75 and the connection part 62 are arranged so as to partly overlap with each other in the side view of a vehicle. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an intake device for a motorcycle.

  As an intake device of a conventional motorcycle, in order to avoid interference between the air cleaner and the actuator of the throttle device, the shape of the air cleaner is long in the front and back and the vertical width is small so that the actuator does not overlap in side view, In order to prevent the interference between the connection portion that requires a certain passage diameter and the actuator by connecting the ram air duct and the air cleaner, the connection portion is connected to the front end of the air cleaner (for example, patent document). 1).

JP 2007-64061 A

  By the way, in the motorcycle intake device described in Patent Document 1, the air cleaner is formed to have a long front and rear shape and a small vertical width, and the connection portion is connected to the front end of the air cleaner. However, it was difficult to secure the capacity of the air cleaner.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide an intake device for a motorcycle that can secure the capacity of the air cleaner while preventing interference between the air cleaner and the connecting portion and the actuator. There is to do.

  In order to achieve the above object, an invention according to claim 1 is connected to an intake port of an engine and has a throttle body having a throttle valve therein, an actuator for driving the throttle valve, and an upper part of the throttle body. In an intake device for a motorcycle, comprising: an air cleaner connected to the upstream end of the throttle body; a connection portion connected to the air cleaner; and a duct connected to the upstream end of the connection portion for guiding intake air to the air cleaner. The part is arranged at the front part and the lower part of the air cleaner, and the actuator and the connection part are arranged so as to partially overlap each other in a side view of the vehicle.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the connection portion is provided in a pair of left and right, and the actuator is disposed in a space formed by the pair of left and right connection portions. It is characterized by.

  According to a third aspect of the invention, in addition to the configuration of the second aspect of the invention, an electric cable connecting coupler connected to the actuator is provided, and the connecting coupler faces between the throttle body and the connecting portion. It is arrange | positioned and it is provided toward the vehicle side.

  According to a fourth aspect of the present invention, in addition to the configuration of the third aspect of the present invention, the connection coupler is located between the throttle body and the connection portion so as not to overlap the connection portion and the air cleaner in a side view of the vehicle. It is characterized by being arranged.

  The invention according to claim 5 is characterized in that, in addition to the configuration of the invention according to any one of claims 1 to 4, the air cleaner is provided with a recess for avoiding interference with the actuator and the connecting coupler.

  According to a sixth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the pair of left and right connection portions are formed long in the vehicle front-rear direction so as to generally face the vehicle side. The throttle body side end portions are separated from each other, and the end portions on the side away from the throttle body are close to each other so as to be inclined with respect to the vehicle front-rear direction. A part of the actuator is disposed between the end portions on the body side.

  According to a seventh aspect of the invention, in addition to the configuration of the invention according to any of the first to sixth aspects, the air cleaner is disposed so as to be sandwiched between a pair of left and right main frames of the motorcycle, and the connection portion is It is arranged so as to face a through hole provided in the main frame.

  According to an eighth aspect of the invention, in addition to the configuration of the invention according to any one of the first to seventh aspects, the air cleaner has a pair of left and right whose front part bulges downward in accordance with the arrangement position of the connecting part. And the front of the actuator is covered by a pair of left and right bulges.

  According to the motorcycle air intake device of the first aspect, the connecting portion is arranged at the front and lower portions of the air cleaner, and the actuator and the connecting portion are arranged so as to partially overlap each other in a vehicle side view. Further, the layout efficiency of the air cleaner, the connection portion, and the actuator can be improved. Thereby, the capacity | capacitance of an air cleaner can be ensured, preventing interference with an air cleaner and a connection part, and an actuator.

  According to the motorcycle intake device of the second aspect, since the actuator is disposed in a space formed by the pair of left and right connecting portions, interference between the pair of left and right connecting portions and the actuator can be prevented. In addition, since the actuator can be accommodated in the space and a part of the actuator can be covered with the air cleaner, the actuator can be protected.

  According to the intake device for a motorcycle according to claim 3, the connecting coupler of the electric cable connected to the actuator is disposed so as to face between the throttle body and the connecting portion, and toward the side of the vehicle. Since it is provided, the electric cable can be taken out from the side of the air cleaner. Thereby, compared with the case where an electric cable is taken out from the vehicle front-back direction, since an electric cable can be shortened, an electric cable can be routed easily.

  According to the motorcycle intake device of claim 4, the connection coupler is disposed between the throttle body and the connection portion at a position that does not overlap the connection portion and the air cleaner in the vehicle side view. In addition, the electric cable can be routed without interfering with the air cleaner, and the assembly workability of the motorcycle can be improved.

  According to the motorcycle intake device of the fifth aspect, since the air cleaner is provided with the recess for avoiding interference with the actuator and the coupler, the air cleaner can be disposed at a low position so as to be in close contact with the actuator.

  According to the motorcycle intake device of the sixth aspect, the pair of left and right connecting portions are formed to be long in the vehicle front-rear direction so as to face the side of the vehicle, and the ends on the throttle body side are separated from each other. And a part of the actuator is disposed between the ends of the pair of left and right connecting parts on the throttle body side so that the ends on the side separated from the throttle body are close to each other. Therefore, the connection portion can be laid out without considering interference with the actuator, and the actuator can be arranged using this empty space, so that the overall size of the apparatus can be reduced. it can

  According to the motorcycle intake device of the seventh aspect, the air cleaner is disposed so as to be sandwiched between the pair of left and right main frames of the motorcycle, and the connection portion faces a through hole provided in the main frame. Therefore, the periphery of the connecting portion and both sides of the actuator are surrounded by the main frame, and the connecting portion and the actuator can be protected.

  According to the motorcycle intake device according to claim 8, the air cleaner includes a pair of left and right bulging portions whose front portions bulge downward according to the arrangement position of the connecting portion, and a pair of left and right bulging portions. Since the front of the actuator is covered by the portion, the actuator can be protected from the front.

1 is a left side view illustrating a motorcycle on which an embodiment of an intake device for a motorcycle according to the present invention is mounted. It is a left view of the periphery of the air cleaner, the connection part, and throttle device which are shown in FIG. FIG. 3 is a left side view of the air cleaner, the connecting portion, and the vehicle body frame around the throttle device shown in FIG. It is a front view of the periphery of an air cleaner, a connection part, and a throttle device shown in FIG. FIG. 4 is a top view of the periphery of the air cleaner, the connecting portion, and the throttle device shown in FIG. 3. FIG. 4 is a bottom view of the periphery of the air cleaner, the connecting portion, and the throttle device shown in FIG. 3. FIG. 6 is a cross-sectional view taken along line AA in FIG. 5.

  Hereinafter, an embodiment of an intake device for a motorcycle according to the present invention will be described in detail with reference to the drawings. It should be noted that the drawings are viewed in the direction of the reference numerals, and in the following description, front, rear, left and right, and top and bottom are in accordance with the direction seen from the driver, and the front of the vehicle is Fr, rear is Rr, left is L, right R, upper is shown as U, and lower is shown as D.

  As shown in FIG. 1, the motorcycle 10 of the present embodiment includes a body frame 11 having a head pipe 12 provided at the front end, a pair of left and right main frames 13 extending rearward and downward from the head pipe 12, and a pair of left and right A pair of left and right engine hangers 14 extending downward from the front lower surface of the main frame 13, a pair of left and right pivot plates 15 connected to the rear ends of the pair of left and right main frames 13, and a pair of left and right pivot plates 15 A pair of left and right seat frames 16 connected to the upper portion and extending rearward and upward, and the engine 50 is attached to the engine hanger 14 and the pivot plate 15.

  The motorcycle 10 includes a front fork 21 that is steerably supported by the head pipe 12, a front wheel WF that is rotatably supported by the lower end portion of the front fork 21, and steering that is attached to the upper end portion of the front fork 21. Handle 22, a swing arm 23 swingably supported on the pivot plate 15, a rear wheel WR rotatably supported on the rear end of the swing arm 23, and a pair of left and right mains above the engine 50. A fuel tank 25 disposed between the frames 13 and a driver seat 26 mounted on a pair of left and right seat frames 16 are provided.

  1 is a front cowl, 32 is a front side cowl, 33 is an under cowl, 34 is a rear cowl, 35 is a headlight, 36 is a side mirror, 37 is a front fender, 38 is a passenger seat, and 39 is a passenger seat. A taillight, 40 is a rear winker, 41 is a rear fender, 42 is a main step, and 43 is a pillion step.

  The engine 50 is a parallel four-cylinder engine, and as shown in FIG. 1, the outer shell mainly includes a crankcase 51, a cylinder block 52 formed integrally with a front upper end portion of the crankcase 51, and a cylinder block The cylinder head 53 attached to the upper end of the cylinder 52, the cylinder head cover 54 attached to the upper end of the cylinder head 53, the generator cover 55 attached to the left side of the crankcase 51, and the right side of the crankcase 51. And a clutch cover (not shown).

  As shown in FIGS. 1 and 3, an intake device 60 is connected to the four intake ports 53 a formed at the rear of the cylinder head 53. A muffler 57 is connected to four exhaust ports (not shown) formed in the front portion of the cylinder head 53 via four exhaust pipes 56.

  As shown in FIGS. 3 to 7, the intake device 60 is connected to the four intake ports 53 a of the cylinder head 53 via four insulators 61, and is connected to the upstream end of the throttle device 70. The air cleaner 80, the pair of left and right connecting portions 62 connected to the front portion of the air cleaner 80, and the pair of left and right intake ducts 63 connected to the upstream ends 62a of the pair of left and right connecting portions 62 for guiding the intake air to the air cleaner 80. And comprising.

  Further, as shown in FIG. 2, the air cleaner 80 is disposed so as to be sandwiched between the pair of left and right main frames 13, and the connection portion insertion hole (penetration) formed in the front portion of the pair of left and right main frames 13. A pair of left and right connecting portions 62 are respectively disposed in the holes 13a.

  As shown in FIGS. 3 and 5 to 7, the throttle device 70 includes a throttle body 71 having four intake passages 71 a respectively connected to four insulators 61, and four intake passages 71 a. Four throttle valves 72 that are respectively arranged to adjust the opening degree of the intake passage 71a, a throttle shaft 73 that is rotatably supported by the throttle body 71, and to which the four throttle valves 72 are fixed, and a throttle shaft 73 1 motor (actuator) 75 for driving the two through the gear mechanism 74, four air funnels 76 attached to the upstream ends of the four intake passages 71a, and four motor funnels attached to the throttle body 71, respectively. Attached to four first injectors 77 for injecting fuel into the intake passage 71a and an air cleaner 80, It comprises a second injector 78 4 for injecting fuel respectively towards the tunnel 76, the.

  As shown in FIG. 7, the gear mechanism 74 includes a drive gear 74 a provided at the shaft end of the rotating shaft of the motor 75, a driven gear 74 b provided at the center in the axial direction on the throttle shaft 73, a drive gear 74 a and a driven gear. And an intermediate gear 74c that is rotatably provided between the gear 74b and transmits the rotational driving force of the drive gear 74a to the driven gear 74b.

  As shown in FIGS. 3 to 7, the air cleaner 80 includes an upper box 82 and a lower box 83 that are divided into upper and lower parts, and a lid 84 that closes an opening 82 a formed on the upper surface of the upper box 82. An air cleaner box 81 and an air cleaner element 85 that is attached to the lower box 83 and removes dust from the intake air are disposed above the throttle body 71. The air cleaner box 81 is partitioned into upper and lower parts by an air cleaner element 85, and the space below the air cleaner element 85 constitutes a dirty room 86 to which intake air guided to the intake duct 63 is supplied. The space above the element 85 constitutes a clean room 87 to which intake air from which dust has been removed by the air cleaner element 85 is supplied. The four second injectors 78 are attached to the upper surface of the rear portion of the upper box 82.

  Further, as shown in FIGS. 3, 4, 6, and 7, downstream ends 62b of a pair of left and right connecting portions 62 are respectively connected to the left and right side portions of the lower surface of the front portion of the lower box 83, and an air cleaner. A pair of left and right connecting projections (bulging portions) 88 communicating with the 80 dirty rooms 86 bulge downward, and the lower box 83 has a lower surface between the pair of left and right connecting projections 88. A recess 89 that avoids interference between the lower box 83 and the motor 75 and the connection coupler 90 is formed. Further, the front of the motor 75 is covered with a pair of left and right connecting projections 88.

  In the present embodiment, as shown in FIG. 3, the motor 75 and the connection portion 62 are arranged such that the front end portion of the motor 75 and the rear end portion of the connection portion 62 overlap each other in a vehicle side view. As shown in FIG. 6, the front end portion of the motor 75 is disposed in a space S <b> 1 formed by a pair of left and right connecting portions 62.

  In this embodiment, as shown in FIGS. 3, 5, and 6, a connection coupler 90 of an electric cable (not shown) connected to the motor 75 is provided at the left end portion of the motor 75. The connection coupler 90 is disposed so as to face the throttle body 71 and the connection portion 62 and is provided toward the left side of the vehicle. Further, the connection coupler 90 is disposed between the throttle body 71 and the connection portion 62 at a position that does not overlap the connection portion 62 and the air cleaner box 81.

  Further, in the present embodiment, as shown in FIGS. 3 to 6, the pair of left and right connection portions 62 are formed long in the vehicle front-rear direction so as to face generally the vehicle side, and the downstream end thereof (the throttle body 71 side). The pair of left and right connections are arranged to be inclined with respect to the longitudinal direction of the vehicle so that the upstream ends 62b are separated from each other and the upstream ends 62a are separated from each other. A front end portion of the motor 75 is disposed between the downstream ends 62 b of the portion 62.

  As described above, according to the intake device 60 of the motorcycle 10 of the present embodiment, the pair of left and right connection portions 62 are disposed at the front and lower portions of the air cleaner 80, and the front end portion of the motor 75 in the vehicle side view. Since the rear end portions of the connecting portion 62 and the connecting portion 62 are arranged to overlap each other, the layout efficiency of the air cleaner 80, the connecting portion 62, and the motor 75 can be improved. Thus, the capacity of the air cleaner 80 can be ensured while preventing interference between the air cleaner 80 and the connecting portion 62 and the motor 75.

  Further, according to the intake device 60 of the motorcycle 10 of the present embodiment, the motor 75 is disposed in the space S <b> 1 formed by the pair of left and right connection portions 62. Interference can be prevented and the motor 75 can be accommodated in the space S1 and a part of the motor 75 can be covered with the air cleaner 80, so that the motor 75 can be protected.

  Further, according to the intake device 60 of the motorcycle 10 of the present embodiment, the connection coupler 90 of the electric cable connected to the motor 75 is disposed so as to face between the throttle body 71 and the connection portion 62, and Since it is provided toward the side of the vehicle, the electric cable can be taken out from the side of the air cleaner 80. Thereby, compared with the case where an electric cable is taken out from the vehicle front-back direction, since an electric cable can be shortened, an electric cable can be routed easily.

  Further, according to the intake device 60 of the motorcycle 10 of the present embodiment, the connection coupler 90 is located between the throttle body 71 and the connection portion 62 so as not to overlap with the connection portion 62 and the air cleaner 80 in the vehicle side view. Therefore, the electric cable can be routed without interfering with the connecting portion 62 and the air cleaner 80, and the assembly workability of the motorcycle 10 can be improved.

  Further, according to the intake device 60 of the motorcycle 10 of the present embodiment, the air cleaner 80 is provided with the recess 89 that avoids interference with the motor 75 and the connection coupler 90, so that the air cleaner 80 is low so as to be in close contact with the motor 75. Can be placed in position.

  Further, according to the intake device 60 of the motorcycle 10 of the present embodiment, the pair of left and right connection portions 62 are formed long in the vehicle front-rear direction so as to face generally the vehicle side, and the downstream ends 62b are separated from each other. The front end of the motor 75 is disposed between the downstream ends 62b of the pair of left and right connecting portions 62, so that the upstream ends 62a are close to each other. The connection portion 62 can be laid out without taking into consideration the interference with the motor 60, and the motor 75 can be arranged using this empty space, so that the overall size of the device 60 can be reduced.

  Further, according to the intake device 60 of the motorcycle 10 of the present embodiment, the air cleaner 80 is disposed so as to be sandwiched between the pair of left and right main frames 13, and the connection portion 62 is inserted through the connection portion provided in the main frame 13. Since it is arranged so as to penetrate the hole 13a, the periphery of the connecting portion 62 and both sides thereof are surrounded by the main frame 13, and the connecting portion 62 and the motor 75 can be protected.

  Further, according to the intake device 60 of the motorcycle 10 of the present embodiment, the air cleaner 80 includes a pair of left and right connecting projections 88 whose front part bulges downward according to the arrangement position of the connecting part 62. Since the front of the motor 75 is covered with the pair of left and right connecting projections 88, the motor 75 can be protected from the front.

10 Motorcycle 13 Main frame 13a Connection part insertion hole (through hole)
50 Engine 53 Cylinder head 53a Intake port 60 Intake device 61 Insulator 62 Connection portion 62a Upstream end (end portion on the side away from the throttle body of the connection portion)
62b Downstream end (end on the throttle body side of the connecting part)
63 Air intake duct (duct)
70 Throttle device 71 Throttle body 72 Throttle valve 75 Motor (actuator)
80 Air cleaner 81 Air cleaner box 85 Air cleaner element 88 Convex part (bulging part)
89 recess 90 connecting coupler S1 space

Claims (8)

A throttle body connected to the intake port of the engine and having a throttle valve inside;
An actuator for driving the throttle valve;
An air cleaner disposed above the throttle body and connected to an upstream end of the throttle body;
A connecting portion connected to the air cleaner;
In an intake device for a motorcycle, comprising: a duct connected to an upstream end of the connection portion, and a duct for guiding intake air to the air cleaner;
The connecting portion is disposed at a front portion and a lower portion of the air cleaner,
An intake device for a motorcycle, wherein the actuator and the connection portion are arranged so as to partially overlap each other in a side view of the vehicle. The connection part is provided in a pair of left and right,
The intake device for a motorcycle according to claim 1, wherein the actuator is disposed in a space formed by the pair of left and right connecting portions. Comprising an electrical cable connection coupler connected to the actuator;
The intake device for a motorcycle according to claim 2, wherein the connection coupler is disposed so as to face between the throttle body and the connection portion, and is provided toward a side of the vehicle.   The motorcycle according to claim 3, wherein the connection coupler is disposed between the throttle body and the connection portion so as not to overlap the connection portion and the air cleaner in a side view of the vehicle. Intake device.   The intake device for a motorcycle according to any one of claims 1 to 4, wherein the air cleaner is provided with a recess that avoids interference with the actuator and the connection coupler. The pair of left and right connecting portions are formed long in the vehicle front-rear direction so as to face generally the side of the vehicle. Inclined with respect to the vehicle longitudinal direction so as to approach each other,
6. The intake device for a motorcycle according to claim 1, wherein a part of the actuator is disposed between end portions of the pair of left and right connecting portions on the throttle body side. The air cleaner is arranged to be sandwiched between a pair of left and right main frames of a motorcycle,
The intake device for a motorcycle according to any one of claims 1 to 6, wherein the connecting portion is disposed so as to face a through hole provided in the main frame. The air cleaner includes a pair of left and right bulging parts whose front part bulges downward according to the arrangement position of the connecting part,
The intake device for a motorcycle according to any one of claims 1 to 7, wherein a front portion of the actuator is covered by the pair of left and right bulged portions.

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