JP2015214940A - Saddle riding type vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a saddle riding type vehicle in which an engine and a throttle body are disposed in a lower portion of a luggage box to configure a motor deceleration assembly, capable of accommodating a helmet in the luggage box with a protruding portion contained therein without increasing the size of the luggage box.SOLUTION: An electric motor 6 of a motor deceleration assembly is disposed in a lower portion of a throttle body 1 so as to be held between an engine 22 and an intake passage 2, an attachment flange 1f whose upper portion projects toward a luggage box 24 is continuously provided on an outer circumference of one side portion of the throttle body 1, a cover 12 defining a deceleration mechanism chamber 13 between the cover 12 and the throttle body 1 is joined to the attachment flange 1f, an upper protruding portion 27 receiving the upper portion of the attachment flange 1f is formed on a bottom wall 24a of the luggage box 24, and the throttle body 1 is configured so that an axis of the intake passage 2 is arranged on one side in a vehicle width direction from a center Y in the vehicle width direction and that the cover 12 is arranged on the other side from the center Y in the vehicle width direction.

Description

  According to the present invention, a luggage box is disposed at a lower portion of a passenger seat, and an engine and a throttle body are disposed at the lower portion of the luggage box. The throttle body extends in the front-rear direction of the vehicle and is connected to an intake port of the engine. And an electric motor that horizontally supports a valve shaft of a throttle valve that opens and closes the intake passage, and that has a rotor shaft parallel to the valve shaft at the top of the throttle body, and one of the throttle body A motor speed reduction assembly is configured with a speed reduction mechanism that is disposed on a side portion and decelerates the rotation of the rotor shaft of the electric motor and transmits the rotation to the throttle valve, and the bottom wall of the luggage box has the motor speed reduction assembly The present invention relates to an improvement in a saddle-ride type vehicle in which a raised portion that protrudes upward to receive an upper portion is formed.

  Such a saddle-ride type vehicle is already known as disclosed in Patent Document 1 below.

JP 2011-149278 A

  In a conventional saddle-ride type vehicle, the throttle body is arranged on the center in the vehicle width direction of the vehicle, and the center portion of the motor speed reduction assembly is offset to one side from the center in the vehicle width direction. The raised part of the bottom wall of the luggage box that receives the upper part of the motor speed reducer assembly is also offset to one side from the center in the vehicle width direction of the vehicle, and the raised part is housed in a helmet accommodated in the luggage box. It is done.

  In such a case, the presence of the raised portion of the bottom wall of the luggage box that receives the upper part of the motor speed reduction assembly makes the luggage box close to the throttle body without being interfered by the motor speed reduction assembly, and The height can be kept low. However, since the raised portion is offset to one side from the center in the vehicle width direction of the vehicle, the helmet that houses the raised portion is also offset to one side from the center of the vehicle width direction in the luggage box. The luggage box needs to be somewhat larger to accommodate the helmet easily.

  The present invention has been made in view of such circumstances, and the saddle riding type is configured such that a helmet can be accommodated in a luggage box while containing the raised portion therein without increasing the size of the luggage box. The object is to provide a vehicle.

  In order to achieve the above object, according to the present invention, a luggage box is disposed at a lower portion of a passenger seat, an engine and a throttle body are disposed at the lower portion of the luggage box, and the throttle body extends in the longitudinal direction of the vehicle. An electric motor having an intake passage connected to an intake port of the engine, horizontally supporting a valve shaft of a throttle valve that opens and closes the intake passage, and a rotor shaft arranged parallel to the valve shaft on the throttle body; In the saddle-ride type vehicle in which a motor speed reduction assembly is configured by a speed reduction mechanism that is disposed on one side of the throttle body and decelerates the rotation of the rotor shaft of the electric motor and transmits it to the throttle valve. Is arranged at the bottom of the throttle body so that it is sandwiched between the engine and the intake passage, A mounting flange is provided on the outer periphery of the side portion so that an upper portion extends to the luggage box side. The mounting flange has a speed reduction mechanism chamber for accommodating the speed reduction mechanism between one side surface of the throttle body. An outer peripheral portion of the cover to be defined is joined, and a raised portion is formed on the bottom wall of the luggage box so as to receive the upper portion of the mounting flange, and the throttle body has an intake passage. A first feature is that the center axis is arranged offset from the vehicle width direction center of the vehicle to one side in the vehicle width direction, and the cover is arranged from the vehicle width direction center of the vehicle to the other side in the vehicle width direction.

  In addition to the first feature, the present invention has a second feature that the mounting flange is arranged at the center in the vehicle width direction of the vehicle.

  According to the first feature of the present invention, the electric motor is disposed at the lower portion of the throttle body so that the electric motor is sandwiched between the engine and the intake passage. A mounting flange that extends to the box side is connected, and the outer periphery of the cover that defines the speed reduction mechanism chamber between the throttle body and one side of the throttle body is joined to the mounting flange, and it is attached to the bottom wall of the luggage box. Since a raised portion that rises upward so as to receive the upper portion of the flange is formed, the space between the engine and the intake passage can be effectively used as a motor installation space. Luggage Boxes do not need to form a large ridge to escape the motor, only a small ridge to accept the top of the mounting flange. It is advantageous in reducing the capacity reserved.

  In addition, the throttle body is arranged with the central axis of the intake passage offset from the vehicle width direction center of the vehicle to one side in the vehicle width direction, and the cover extends from the vehicle width direction center of the vehicle to the other side in the vehicle width direction. Therefore, the mounting flange connected to one side of the throttle body for mounting the cover of the motor speed reduction assembly and the open end of the cover are located more in the center in the vehicle width direction of the vehicle. Also, it becomes possible to arrange the raised portion so that it is closer to the center in the vehicle width direction of the vehicle. As a result, when the helmet is stored in the luggage box with the raised portion inside, the helmet is inevitably placed on the center of the vehicle in the vehicle width direction, and the luggage box is specially enlarged. There is no need to let them. Even when the vehicle is driven with the spare helmet stored in the luggage box, the storage posture of the spare helmet can be stabilized.

  According to the second feature of the present invention, since the mounting flange is arranged at the center of the vehicle in the vehicle width direction, the raised portion for receiving the upper portion of the mounting flange can be brought closer to the center of the vehicle in the vehicle width direction. Further, it is possible to further reduce the size of the raised portion.

1 is a side view of a scooter type motorcycle according to an embodiment of the present invention. The enlarged side view of the principal part of FIG. FIG. 3 is a view taken along arrow 3-3 in FIG. 2. FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, front, rear, left and right are referred to based on a saddle-ride type vehicle.

  First, in FIG. 1 and FIG. 2, a front fork 21 that supports a front wheel Wf is movably attached to a front end portion of a body frame F of a scooter type motorcycle V as a saddle-ride type vehicle. A power unit P composed of the engine 22 and the transmission 23 is attached to the center portion so as to be able to swing up and down, and a luggage box 24 and a fuel tank 25 are attached to the rear portion of the vehicle body frame F in the front-rear direction. A rear wheel Wr that is driven by the power unit P is supported at the rear end of the power unit P, and a passenger seat 26 that opens and closes an open upper surface of the luggage box 24 is attached to the upper portion of the luggage box 24.

  Accordingly, the luggage box 24 is disposed at the lower part of the passenger seat 26, the engine 22 is disposed at the lower part of the luggage box 24, and a cooling device 28 including a radiator is disposed on the right side of the engine 22. Is done. Further, the throttle body 1 is disposed below the luggage box 24.

  As shown in FIGS. 2 to 4, the throttle body 1 has an intake passage 2 that extends in the longitudinal direction of the vehicle and communicates with an intake port of the engine 22 via an intake pipe 29, and opens and closes the intake passage 2. A valve shaft 3 a of the throttle valve 3 is horizontally supported, and an air cleaner 31 is connected to an upstream end of the intake passage 2 via an intake duct 30.

  A cylindrical motor chamber 5 parallel to the valve shaft 3 a is formed in the lower portion of the throttle body 1, and the electric motor 6 is accommodated in the motor chamber 5. Therefore, the electric motor 6 is disposed between the intake passage 2 of the throttle body 1 and the upper surface of the engine 22, and the space between them is effectively utilized as a motor installation space.

  The electric motor 6 includes a cylindrical motor body 7, a motor mounting flange 8 fixed to one end surface of the motor body 7, and a rotor shaft that is rotatably supported by the motor body 7 and protrudes from the one end surface. 9 and the electric motor 6 is arranged with the rotor shaft 9 parallel to the valve shaft 3a. The motor mounting flange 8 is fastened to the throttle body 1 with bolts 10.

  A cover mounting flange 1f is integrally connected outwardly on the outer periphery of the right side portion of the throttle body 1, and the upper portion 1fu of the cover mounting flange 1f is above the upper surface of the throttle body 1. (Ie, on the luggage box 24 side). The cover mounting flange 1f has a plurality of outer peripheral portions (the outer peripheral flange portion 12f in the illustrated example) of the cover 12 which is formed in a box shape with one open surface and whose open surface is opposed to the right side surface of the throttle body 1. The bolt 11 is detachably fastened. A speed reduction mechanism chamber 13 communicating with the motor chamber 5 is defined between the inner surface of the cover 12 and the right side surface of the throttle body 1.

  The speed reduction mechanism chamber 13 accommodates a speed reduction mechanism 14 that connects the rotor shaft 9 of the electric motor 6 and the valve shaft 3a. The speed reduction mechanism 14 is integrated with a pinion gear 15 fixed to the end of the rotor shaft 9, a first intermediate gear 16 having a larger diameter than the pinion gear 15 that meshes with the pinion gear 15, and the first intermediate gear 16. The second intermediate gear 17 having a smaller diameter than the first intermediate gear 16 and the output gear having a larger diameter than the second intermediate gear 17 fixed to the outer end of the valve shaft 3a and meshing with the second intermediate gear 17 The first and second intermediate gears 16 and 17 are rotatably supported by an intermediate shaft 19 supported at both ends by the throttle body 1 and the cover 12. The electric motor 6 and the speed reduction mechanism 14 constitute a motor speed reduction assembly M.

  In addition, a throttle sensor 20 that is connected to the valve shaft 3 a and detects the opening degree of the throttle valve 3 is attached to the cover 12.

  In the above, the throttle body 1 is disposed on the left side opposite to the cooling device 28 with respect to the center Y of the vehicle V in the vehicle width direction of the center axis A of the intake passage 2. The throttle body 1 and the motor speed reduction assembly M are arranged so that the center axis A of the intake passage 2 and the cover 12 of the motor speed reduction assembly M sandwich the vehicle width direction center Y of the vehicle V, that is, the throttle body 1 is The center axis A of the intake passage 3 is offset from the vehicle width direction center Y of the vehicle toward one side (left side) in the vehicle width direction, and the cover 12 of the motor speed reduction assembly M is the center in the vehicle width direction of the vehicle. It is arranged on the other side (right side) in the vehicle width direction from Y. An attachment flange 1 f provided continuously to the outer periphery of the throttle body 1 for attaching the cover 12 to the throttle body 1 is disposed on the center Y in the vehicle width direction of the vehicle V. Thus, the central portion C of the motor speed reduction assembly M is also positioned substantially at the center Y in the vehicle width direction of the vehicle V.

  On the bottom wall 24 a of the luggage box 24, a raised portion 27 is formed so as to protrude upward so as to receive the upper portion 1 fu of the cover mounting flange 1 f provided continuously with the outer periphery of the right side portion of the throttle body 1. Is arranged so that its center part is on the center Y in the vehicle width direction. Thus, the lower surface of the raised portion 27 is formed as a concave surface that is recessed upward corresponding to the shape of the raised portion, and the top portion of the upper portion 1fu of the mounting flange 1f is accommodated in the concave surface.

  Next, the operation of this embodiment will be described.

  An electronic control unit (not shown) controls energization of the electric motor 6 so that the opening degree of the accelerator operation member of the vehicle and the opening degree of the throttle valve 3 are balanced. At that time, the output of the electric motor 6 is decelerated in two stages by the pinion gear 15 and the first intermediate gear 16, the second intermediate gear 17 and the output gear 18 and transmitted to the valve shaft 3 a, and the throttle valve 3 is finely controlled for opening and closing. Then, the intake amount of the engine 22 can be controlled through the intake passage 2 of the throttle body 1.

  By the way, the throttle body 1 is disposed so that the central axis A of the intake passage 2 is offset to one side in the vehicle width direction (particularly in the direction opposite to the cooling device 28) with the center Y in the vehicle width direction interposed therebetween. This is advantageous in terms of weight balance.

  The electric motor 6 is disposed at the lower part of the throttle body 1 so that the electric motor 6 is sandwiched between the engine 22 and the intake passage 2, and the upper part 1 fu is located above the upper surface of the throttle body on the outer periphery of the right side of the throttle body 1 ( In other words, a mounting flange 1f extending to the luggage box 24 side is connected to the outer periphery of the cover 12 for defining the speed reduction mechanism chamber 13 between the throttle body 1 and the mounting flange 1f. Since a raised portion 27 is formed on the bottom wall 24a of the luggage box 24 so as to receive the upper portion 1fu of the mounting flange 1f, a space between the engine 22 and the intake passage 2 is provided as a motor installation space. The luggage box bottom wall 24a has an upper portion 1f of the mounting flange 1f having a relatively small upward overhang. Since it is only necessary to form the small ridge 27 to receive, it is possible to minimize the capacity of the luggage box 24 is subtracted by the ridges 27. Moreover, according to the special arrangement of the raised portion 27, the luggage box 24 can be brought close to the throttle body 1 without being interfered with the motor speed reduction assembly M, and the height of the riding seat 26 can be kept low. Can do.

  In addition, since the cover 12 of the motor deceleration assembly M is disposed on the cooling device 28 side from the vehicle width direction center Y of the vehicle (that is, on the side opposite to the intake passage 2 across the vehicle width direction center Y of the vehicle), A mounting flange 1f connected to the outer periphery of the right side portion of the throttle body 1 for mounting the cover 12 is disposed in the vehicle width direction center Y of the vehicle without difficulty (in particular in the illustrated example, the vehicle flange direction center Y is disposed). Can be made. Therefore, the raised portion 27 can be arranged so that the center portion thereof is on the center Y in the vehicle width direction of the vehicle V. When the helmet H is accommodated in the luggage box 24, the helmet H The above-described raised portion 27 is accommodated, and the helmet H is inevitably disposed on the center Y in the vehicle width direction of the vehicle V, so that it is not necessary to enlarge the luggage box 24 specially. Further, even when the motorcycle V is driven with the spare helmet H stored in the luggage box 24, the storage posture of the spare helmet H can be stabilized.

  The present invention is not limited to the above embodiments, and various design changes can be made without departing from the scope of the invention. For example, the number of deceleration stages of the deceleration mechanism 14 is arbitrary. The present invention can also be applied to a saddle-ride type tricycle.

M: Motor deceleration assembly V: saddle riding type vehicle (motorcycle)
Y: Center in the vehicle width direction 1 ... Throttle body 1f ... Mounting flange (cover mounting flange)
1fu: upper part of mounting flange 2 ... intake passage 3 ... throttle valve 3a ... valve shaft 6 ... electric motor 9 ... rotor shaft 12 ... .... Cover 13 ... Deceleration mechanism chamber 14 ... Deceleration mechanism 22 ... Engine 24 ... Luggage box 26 ... Seat 27 ... Raised part

Claims (2)

A luggage box (24) is arranged at the lower part of the passenger seat (26), an engine (22) and a throttle body (1) are arranged at the lower part of the luggage box (24), and the throttle body (1) It has an intake passage (2) extending in the longitudinal direction of the vehicle and continuing to the intake port of the engine (22), and horizontally supports the valve shaft (3a) of the throttle valve (3) that opens and closes the intake passage (2). The electric motor (6) is disposed on the throttle body (1) with the rotor shaft (9) parallel to the valve shaft (3a), and the electric motor is disposed on one side of the throttle body (1). In a saddle-ride type vehicle in which a motor speed reduction assembly (M) is configured with a speed reduction mechanism (14) that decelerates rotation of a rotor shaft (9) of a motor (6) and transmits it to the throttle valve (3).
The electric motor (6) is disposed at a lower portion of the throttle body (1) so that the electric motor (6) is sandwiched between the engine (22) and the intake passage (2). A mounting flange (1f) with an upper portion (1fu) projecting toward the luggage box (24) is connected to the outer periphery of the portion, and the mounting flange (1f) is for accommodating the speed reduction mechanism (14). An outer peripheral portion of a cover (12) defining the speed reduction mechanism chamber (13) between one side surface of the throttle body (1) is joined, and the bottom wall (24a) of the luggage box (24) A raised portion (27) is formed so as to protrude upward so as to receive the upper portion (1fu) of the mounting flange (1f), and the throttle body (1) has a central axis (A) of its intake passage (2). Center of vehicle width direction Y) are arranged offset to one side in the vehicle width direction from, the saddle riding type vehicle, characterized in that said cover (12) is arranged in the other side in the vehicle width direction from the vehicle widthwise center of the vehicle (Y).   The saddle riding type vehicle according to claim 1, wherein the mounting flange (1f) is arranged at a center (Y) in a vehicle width direction of the vehicle.

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