JP2010042755A - Vehicle front structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle front structure capable of efficiently and appropriately using air introduced into a vehicle body while sufficiently ensuring an illumination area of a headlight and attaining size reduction of a front cowl part. <P>SOLUTION: The vehicle front structure includes: a front cowl part 72 covering a forward portion of a vehicle body frame; the headlight 59 disposed within the width of the front cowl part 72; and air inlets 111R, 111L disposed on both sides of the headlight 59 to introduce forward air into the front cowl part 72. The air inlets 111R, 111L are formed on recessed portions 115R, 115L formed by recessing both side surfaces of the headlight 59 inward in a vehicle width direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle front structure having a front cowl portion.

2. Description of the Related Art A front structure of a vehicle that includes a front cowl portion that covers the front of a vehicle body frame is known (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 5-46686 (FIG. 3)

  In FIG. 3 of Patent Document 1, a headlight 11 is disposed in the center of the front surface of a fairing 8 (front cowl portion 8) (the reference sign is that of the same publication; the same applies hereinafter). The air intakes 12 and 12 connected to the air cleaner are disposed on the sides of the air cleaner.

  However, in the technique of Patent Document 1, air intakes 12 and 12 connected to an air cleaner are disposed outside the headlight 11 having a wide trapezoidal shape when viewed from the front, and the conventional shape of the headlight is thus achieved. If the air intakes 12 and 12 are arranged while maintaining the light emission area while maintaining the above, the length in the vehicle width direction is increased, and the front cowl portion 8 may be increased in size.

  The present invention provides a vehicle front structure capable of ensuring a sufficient light-emitting area of a headlight and efficiently and appropriately utilizing air introduced into a vehicle body while reducing the size of a front cowl portion. This is the issue.

  According to the first aspect of the present invention, there is provided a front cowl portion that covers the front of the vehicle body frame, a headlight that is disposed within the width of the front cowl portion, and the front cowl that is disposed on both sides of the headlight. In the front structure of a vehicle provided with an air intake to be introduced into the inside of the part, the air intake is provided in a recess in which both side surfaces of the headlight are recessed inward in the vehicle width direction. To do.

  According to a second aspect of the present invention, a middle cowl that covers the side of the vehicle is provided on the side of the vehicle body frame continuously to the front cowl, and the side of the headlight is covered inside the middle cowl. A cowl inner that extends rearward is provided, and a gap is formed between the middle cowl and the cowl inner to guide the wind introduced from the air intake, and air intake of the air cleaner that introduces a part of the wind guide behind the gap. A duct entrance is provided.

  The invention according to claim 3 is characterized in that an opening for applying a part of the wind guide to the driver's leg is provided behind the gap.

  In the invention according to claim 4, a knee cover sandwiched between the driver's legs during driving is provided behind the opening, and a part of the wind guide is introduced into the knee cover on the front side of the knee cover. An air intake gap is provided.

In the invention which concerns on Claim 1, the air intake is provided in the recessed part which dented both the side surfaces of the headlight as a light emission part inside a vehicle width direction.
Conventionally, when an air intake port is provided, the air intake port is provided outside the headlight. With this arrangement, the length of the front cowl portion in the vehicle width direction is increased, which may increase the size of the vehicle.

  In this regard, in the present invention, since the air intakes are provided in the recesses provided on both side surfaces of the headlight, the light emitting area of the headlight is sufficiently secured and the length of the front cowl portion in the vehicle width direction is kept small. Can do. That is, according to the present invention, the air introduced into the vehicle body can be used efficiently and appropriately while reducing the size of the front cowl portion.

  In the invention according to claim 2, a cowl inner is provided inside the middle cowl, a gap is formed between the middle cowl and the cowl inner, and an inlet of an intake duct of an air cleaner for introducing a part of the air guide is provided behind the gap. Is provided. If this gap is formed in a wide and smooth shape, the traveling wind can flow smoothly. If it does so, it is not necessary to extend the intake duct of an air cleaner long, and it becomes possible to shorten the length of an intake duct.

  In the invention according to claim 3, since an opening for applying a part of the wind guide to the driver's leg is provided behind the gap, a part of the introduced wind guide passes through the opening, It can be applied to the driver's legs. Since a part of the introduced wind guides against the driver's leg through the opening, the introduced wind guide can be used more efficiently.

In the invention according to claim 4, a knee cover is provided behind the opening, and an air intake gap is provided on the front side of the knee cover.
Part of the airflow output from the opening is introduced into the knee cover through the air intake gap provided on the front side of the knee cover, allowing more efficient use of the traveling wind It becomes.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. In the figure, “up”, “down”, “left”, “right”, “front”, and “rear” are directions viewed from the occupant seated in the vehicle. The drawings are viewed in the direction of the reference numerals.

FIG. 1 is a left side view of a vehicle according to the present invention. A motorcycle 10 as a vehicle is provided with a body frame 11.
The vehicle body frame 11 includes a head pipe 12, a main frame 14 that extends rearward from the head pipe 12 and supports the engine 13, and extends rearward from the upper rear end of the main frame 14 to support the occupant seat 15. And a rear frame 19 for attaching an electrical component such as 16 and supporting a vehicle body rear portion 18 including a rear fender 17.
The main frame 14 includes a pivot plate 22 provided at the rear end of the main frame 14 and supporting the swing arm 28.

  A pivot shaft 27 is provided on the pivot plate 22, and a rear swing arm 28 (swing arm 28) extends rearward from the pivot shaft 27, and a rear that absorbs an impact between the swing arm 28 and the main frame 14. A cushion unit 29 is provided, and a rear wheel 31 is attached to the tip of the swing arm 28. The rear wheel 31 is driven by a drive shaft (not shown) that connects between the engine 13 and the rear wheel 31.

  The head pipe 12 is provided with a front fork 24, a front wheel 25 is attached to the lower end portion of the front fork 24, and a steering handle 26 for steering the front wheel 25 is provided at the upper end portion of the front fork 24.

  An engine 13 (V-type four-cylinder engine 13) is mounted on the main frame 14. The engine 13 is supported by the main frame 14 via first to fourth support points 30a to 30d. The first to fourth support points 30a to 30d are provided horizontally in the vehicle width direction, and are arranged in this order from the front to the rear of the vehicle. Among these support points, the third to fourth support points 30 c to 30 d are provided on the pivot plate 22. That is, the engine 13 is suspended by the main frame 14 and the pivot plate 22.

  The V-type four-cylinder engine 13 includes a crankcase 37, a front cylinder 35 extending obliquely forward and upward with a crankshaft 34 provided in the crankcase 37 as a center, and extending obliquely rearward and upward with the crankshaft 34 as a center. After that, the cylinder 36 is arranged in a V shape. In the V-type four-cylinder engine 13, when the vehicle is viewed from the side, the main frame 14 overlaps the front cylinder 35 and the rear cylinder 36 that constitute the upper part of the engine 13, and the crankcase that constitutes the rear part of the engine 13. 37 is suspended so that a part of the pivot plate 22 overlaps.

The V-type four-cylinder engine 13 is provided with an exhaust device 33.
The exhaust device 33 includes exhaust pipes 41 a to 41 d extending from the cylinders 35, 35, 36, 36, a catalyst pipe 45 that collects the exhaust pipes 41 a to 41 d and purifies exhaust gas, and the catalyst pipe 45. And a muffler 47 connected to the general collecting pipe 46.

  In the figure, 51 is a radiator unit for cooling the engine 13, 52L, 52R (only the front side reference numeral 52L is shown, the same applies hereinafter), front disk brake caliper provided on the front fork, 53L, 53R (front side reference numeral 53L only) The same applies hereinafter.) Is a front disk plate provided on the front wheel 25 and sandwiched between the front disk brake calipers 52L and 52R, 54 is a front master cylinder provided on the steering handle, 56 is a fuel tank attached to the main frame 14 and covers a fuel tank described later. The fuel tank covers 57L and 57R (only the front side reference numeral 57L are shown, the same applies hereinafter) also serving as the cowl portion 70 to be attached are shown to the driver steps 58L and 58R (only the front side reference numeral 58L attached to the main frame 14). The same shall apply hereinafter) to the rear frame 19. Steps for passengers, 59, headlights, 60, front fenders, 61L, 61R (only reference numeral 61L on the front side is shown), mirrors, 62, rear disc brake calipers, 63, rear wheels 31 A rear disc plate 65, which is sandwiched by the disc brake caliper 62, is a main stand.

Hereinafter, the cowl part 70 which mainly constitutes the exterior part of the motorcycle 10 will be described.
The cowl portion 70 includes a front cowl portion 72 that extends from the head pipe 12 and covers the front of the vehicle body frame 11 via a cowl stay 71 described later, and a side cowl portion that is provided continuously from the front cowl portion 72 and covers the side of the vehicle. 73 and an under cowl 74 provided below the engine 13 for the purpose of improving wind protection and the appearance of the vehicle.

  The front cowl 72 includes an upper center cowl 76 that covers the top of the headlight 59, a wind screen 77 that extends above the upper center cowl 76, and middle cowls 78L and 78R that cover the sides of the main frame 14 (see FIG. The front upper side cowl 79L and 79R (only the front side reference numeral 79L is shown. The same applies hereinafter) to which the left and right sides of the wind screen 77 are attached are shown. .

  The side cowl portion 73 covers the front upper side cowls 79L and 79R that support the left and right sides of the wind screen 77, the middle cowls 78L and 78R that cover the sides of the head pipe 12 and the main frame 14, and the lower part of the fuel tank cover 56. Knee covers 81L and 81R (only the reference numeral 81L on the front side of the figure is shown; the same applies hereinafter) sandwiched between the legs Rf of the driver R during driving, and components of the main frame 14 provided below these knee covers 81L and 81R Pivot plates 22L and 22R (only the reference numeral 22L on the front side of the figure is shown. The same applies hereinafter) pivot plate covers 82L and 82R that cover the outer surface.

  FIG. 2 is a front view of a vehicle according to the present invention. The motorcycle 10 as a vehicle includes a headlight 59, an upper center cowl 76 that covers the headlight 59, and a part of the upper center cowl 76. A wind screen 77 extending upward so as to overlap, and front upper side cowls 79L, 79R that hold the left and right sides of the wind screen 77 and are attached with left and right rear confirmation mirrors 61L, 61R (mirrors 61L, 61R). The middle cowls 78L and 78R that cover the lower portions of the front upper side cowls 79L and 79R and extend to the rear of the headlight 59, and the front air formed between the headlight 59 and the middle cowls 78L and 78R 111L of air intakes introduced into the inside of the front cowl part 72, And 11R, the lower end portion and left and right middle cowls 78L of the headlight 59, and the radiator air inlet 112 formed in a portion surrounded by the front end portion of the 78R, are provided.

That is, a front cowl portion 72, a headlight 59 disposed within the width of the front cowl portion, and air intake ports 111L and 111R disposed on both sides of the headlight 59 are provided at the front portion of the motorcycle 10. , Is provided.
In the figure, 113 is a horn for a horn, and 114L and 114R are turn signals integrally attached to left and right mirrors 61L and 61R.

FIG. 3 is a front view of an essential part of the vehicle according to the present invention, and the air intake ports 111L and 111R are provided in recesses 115L and 115R in which both side surfaces of the headlight 59 are recessed inward in the vehicle width direction.
Specifically, the left air intake port 111L is in a region surrounded by a recess 115L in which the left side surface of the headlight 59 is recessed, a front portion of the left front upper side cowl 79L, and a front portion of the middle cowl 78L. Is formed. The right air inlet 111R is formed by a member arranged symmetrically with the left air inlet 111L and the vehicle center line. That is, the left and right air intakes have the same configuration and will not be described.

FIG. 4 is a view for explaining the mounting relationship between members constituting the cowl portion provided in the vehicle according to the present invention.
A cowl stay 71 that supports the front cowl portion 72 extends in front of the head pipe (reference numeral 12 in FIG. 1). A wind screen 77 is supported on the cowl stay 71 and left and right mirrors 61L and 61R (the right mirror 61R is omitted) are supported.

  The left and right front upper side cowls 79L and 79R that support the left and right sides of the wind screen 77 are provided on the left and right sides of the wind screen 77 (in the drawing, the right front upper side cowl 79R to facilitate understanding of the structure of the front cowl 72). Are provided, and left and right middle cowls 78L and 78R are provided below these left and right front upper side cowls 79L and 79R, covering the front side of the vehicle. The left and right front upper side cowls 79L and 79R are members that connect between the wind screen 77 and the middle cowls 78L and 78R.

  Left and right cowl inners 121L and 121R (only the left cowl inner 121L is shown) are provided inside the left and right middle cowls 78L and 78R. The left and right cowl inners 121L and 121R have left and right front uppers at the upper ends. The front cowls 79L and 79R are attached to the side cowls 79L and 79R, and the front portions of the left and right front side cowls 79L and 79R are provided inside the front portions of the middle cowls 78L and 78R to reinforce the front portions of the middle cowls 78L and 78R. Cowl panels 122L and 122R (only the left front cowl panel 122L is shown) are attached.

  Layer cowls 123L and 123R that are provided along the rear contours of the middle cowls 78L and 78R and that support the middle cowls 78L and 78R are integrally provided at the rear of the middle cowls 78L and 78R. These layer cowls 123L and 123R are integrally provided. Are attached to the main frame (reference numeral 14 in FIG. 1) via vehicle body stays 124L and 124R (only the left vehicle body stay 124L is shown).

Layer inners 127L, 127R having a plurality of openings 126L,..., 126R,.
In addition, knee covers 81 </ b> L and 81 </ b> R (only the left side reference numeral 81 </ b> L is shown) are attached to the lower end of the fuel tank cover 56.

  Here, when the middle cowl 78L, 78R is assembled to the vehicle side, the layer cowl 123L, 123R and the layer inner 127L, 127R are attached to the middle cowl 78L, 78R in the sub-assembly process in advance, and then the main assembly process. Middle cowls 78L and 78R are assembled on the vehicle body side.

  FIG. 5 is a sectional view taken along line 5-5 in FIG. 1, and front cowl panels 122L and 122R are provided inside the middle cowls 78L and 78R so as to reinforce the front portions of the middle cowls 78L and 78R. Cowling inners 121L and 121R are provided on the inner side of the cowl panels 122L and 122R and on the rear side from the side portion of the headlight 59.

  That is, middle cowls 78L and 78R are provided on the side (outside) of the vehicle body frame 11, and the cowl inner 121L that covers the side of the headlight 59 and extends rearward inside the middle cowls 78L and 78R. , 121R are provided, and gaps 129L and 129R are formed between the middle cowls 78L and 78R and the cowl inners 121L and 121R to guide the air introduced from the air intake ports 111L and 111R, and behind these gaps 129L and 129R. The inlets 132Li and 132Ri of the intake duct of the air cleaner 131 for introducing a part of the wind guide are provided.

  Cowl inners 121L and 121R are provided inside the middle cowls 78L and 78R, and gaps 129L and 129R are formed between the middle cowls 78L and 78R and the cowl inners 121L and 121R. The inlets 132Li and 132Ri of the intake duct of the air cleaner 131 for introducing the air cleaner 131 are provided.

  If the gaps 129L and 129R are formed in a wide and smooth shape, the traveling wind can be smoothly flowed. Then, it is not necessary to lengthen the intake ducts 132L and 132R of the air cleaner 131, and the length of the intake ducts 132L and 132R can be shortened.

FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 1, and left and right layer cowls 123L and 123R are provided at the rear of the middle cowls 78L and 78R. The left and right layer cowls 123L and 123R include layer inners 127L and 127R. These layer inners 127L and 127R are provided with openings 126L and 126R for outputting a part of the airflow that has passed through the gaps 129L and 129R as the airflow guide passages to the outside. These openings 126L and 126R are formed at positions so as to contact the driver's legs (reference numeral Rf in FIG. 1) in the rear.
In other words, openings (openings) 126L and 126R for applying a part of the wind guide to the driver's leg Rf are provided behind the gaps 129L and 129R as the wind guide passages.

  Behind the gaps 129L and 129R are openings 126L and 126R that apply a part of the wind guide to the driver's leg Rf, so that a part of the introduced wind guide is provided to the driver's leg Rf. You can guess. A part of the introduced wind is guided to the air cleaner (reference numeral 131 in FIG. 5), and hits the driver's leg Rf through the openings (openings) 126L and 126R. Can be used.

  Knee covers 81L and 81R that are sandwiched by the driver's legs Rf during driving are provided behind the openings 126L and 126R. A part of the wind guide is provided on the front side of the knee covers 81L and 81R. Air intake gaps 136 </ b> L and 136 </ b> R are provided to be introduced into the inside.

  Since part of the airflow output from the openings 126L and 126R is introduced into the knee covers 81L and 81R through the air intake gaps 136L and 136R provided on the front side of the knee covers 81L and 81R, A part of the wind guide can cool the electrical components such as the battery 16 provided in the rear part of the vehicle. Since the electric parts can be cooled by a part of the wind guide, more efficient traveling wind (wind guide) can be used.

  FIG. 7 is a cross-sectional view taken along the line 7-7 in FIG. 1. A radiator unit 51 is disposed behind the front wheel 25, and left and right middle cowls 78L and 78R are provided outside the radiator unit 51. A radiator air intake 112 is provided between the middle cowls 78L and 78R.

  Most of the traveling wind taken at the radiator air intake 112 passes through the radiator unit 51 and cools the radiator unit 51, but a part of the wind is at the rear of the middle cowls 78L and 78R and the middle cowls 78L and 78R. It flows to the outside of the vehicle through the separate openings 138L and 138R formed between the provided layer cowls 123L and 123R. Since the separate openings 138L and 138R are provided, the exhaust pipe 41b provided in the vicinity of the separate opening 138R can be hardly overheated.

The operation of the vehicle front structure described above will be described next.
FIG. 8 is an operation explanatory view (perspective view) of the vehicle according to the present invention, and FIG. 9 is an operation explanatory view (plan view) of the vehicle according to the present invention. Hereinafter, description will be made with reference to FIGS. 8 to 9 and FIG. 2 described above.
In the figure, reference numeral 140 denotes a fuel tank.

  The traveling wind (wind guide) taken from the air intakes (reference numerals 111L and 111R in FIG. 2) passes through the inside of the middle cowls 78L and 78R and is input to the air cleaner 131. Further, part of the airflow is from openings 126L,..., 126R,... (Only the front side 126L,...) Opened in the layer inners 127L, 127R (only the front side 127L is shown). Since it is used for the driver's legs (reference numeral Rf in FIG. 1), the heat of the engine 13 can be made difficult to be transmitted to the driver's legs Rf, and driving comfort can be improved.

Returning to FIG. 2, the air intake ports 111 </ b> L and 111 </ b> R are provided in the concave portions 115 </ b> L and 115 </ b> R in which both side surfaces of the headlight 59 as the light emitting portion are recessed inward in the vehicle width direction.
Conventionally, when an air intake port is provided, the air intake port is provided outside the headlight 59. Such an arrangement increases the length of the front cowl portion 72 in the vehicle width direction, which may increase the size of the vehicle.

  In this regard, in the present invention, since the air intake ports 111L and 111R are provided in the recesses 115L and 115R provided on both side surfaces of the headlight 59, a sufficient light emitting area of the headlight 59 is secured and the front cowl portion 72 The vehicle width direction length can be kept small. That is, the front cowl portion 72 can be reduced in size.

  FIG. 10 is a perspective view of a layer inner according to another embodiment, showing a left layer inner 157L. Here, since the left and right layer inners 157L and 157R are members formed symmetrically with respect to the center line in the width direction of the vehicle, the left inner layer 157L will be described below, and the right inner layer 157R will be described. Omitted.

The layer inner 157L includes a mounting portion 151L attached to the layer cowl (reference numeral 123L in FIG. 4), a rear wall 155L provided on the inner side in the vehicle width direction from the mounting portion 151L, and a plurality of openings 156L, and the rear wall. The inner wall portion 158 </ b> L is provided on the inner side of 155 </ b> L and closes a gap formed between the main frame 14 and the inner frame portion 158 </ b> L.
The difference between the layer inner 127L according to the embodiment and the layer inner 157L according to another embodiment is that an inner wall portion 158L is attached, and there is no other significant change. Note that the layer inner 157R provided on the right side has the same configuration as the layer inner 157L, and includes a mounting portion 151R, a rear wall 155R having a plurality of mounting portions 156RL, and an inner wall portion 158R. It is configured.

FIG. 11 is a diagram of another embodiment of FIG. 6, and is an explanatory diagram of the operation when the above-described layer inners 157L and 157R are attached to the layer cowls 123L and 123R.
In the figure, the airflow that has passed through the gaps 129L and 129R passes through the openings 156L and 156R and flows in the directions of the arrows p and p, and a part of the airflow is diverted, and the inner wall portions 158L and 158R Without flowing out, it is guided in the direction of the arrow q 1, then guided in the direction of q 2, and guided to the electrical system including the battery 16.
Since the inner wall portions 158L and 158R are attached to the layer inners 157L and 157R, the wind guide taken into the vehicle body can be used more effectively.

  In claim 2, the opening provided behind the gap may be omitted.

  INDUSTRIAL APPLICABILITY The present invention is suitable for a motorcycle lamp having a front cowl portion and an intake structure.

1 is a left side view of a vehicle according to the present invention. 1 is a front view of a vehicle according to the present invention. It is a principal part front view of the vehicle which concerns on this invention. It is a figure explaining the attachment relation between the members which constitute the cowl part provided in the vehicles concerning the present invention. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is a sectional view taken along line 6-6 of FIG. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 1. It is action explanatory drawing (perspective view) of the vehicle which concerns on this invention. It is action explanatory drawing (plan view) of the vehicle concerning the present invention. It is a perspective view of the layer inner which concerns on another Example. It is another Example figure of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle (motorcycle), 11 ... Body frame, 59 ... Headlight, 72 ... Front cowl part, 78L, 78R ... Middle cowl, 81L, 81R ... Knee cover, 111L, 111R ... Air intake, 115L, 115R ... Recess 121L, 121R ... Cowl inner, 129L, 129R ... Gap, 132Li, 132Ri ... Inlet of intake duct, 126L, 126R ... Opening, 136L, 136R ... Air intake gap, Rf ... Driver's legs.

Claims (4)

A front cowl portion that covers the front of the body frame, a headlight that is disposed within the width of the front cowl portion, and an air intake that is disposed on both sides of the headlight and that introduces forward air into the front cowl portion. A front structure of a vehicle with an inlet,
The vehicle front structure according to claim 1, wherein the air intake is provided in a recess in which both side surfaces of the headlight are recessed inward in the vehicle width direction. On the side of the body frame, a middle cowl that covers the side of the vehicle is provided continuously to the front cowl,
Inside the middle cowl, a cowl inner that covers the side of the headlight and extends rearward is provided,
A gap is formed between the middle cowl and the cowl inner for guiding the wind introduced from the air intake, and an inlet of an air duct for introducing an air cleaner is provided behind the gap. The vehicle front structure according to claim 1, wherein:   The vehicle front structure according to claim 2, wherein an opening for applying a part of the wind guide to a driver's leg is provided behind the gap.   A knee cover sandwiched between the driver's legs during driving is provided behind the opening, and an air intake gap for introducing a part of the wind guide into the knee cover is provided on the front side of the knee cover. The vehicle front part structure according to claim 1, wherein the vehicle front part structure is provided.

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