KR100779923B1 - Intake device of motorcycle - Google Patents

Abstract

The present invention provides an intake apparatus for a vehicle that can cover the outer circumference of the intake duct in a wide range to improve waterproofness and maintain drainage between the rear fender and the air cleaner case to improve drainage.

An intake duct 53 for intake into the air cleaner case 51 is provided on the case cover 61 side of the air cleaner case 51, and the outer circumference of the intake duct 53 is attached to the case cover 61. It is characterized in that the covering the duct cover 112 is integrally installed.

Description

Intake device of two-wheeled vehicle {INTAKE APPARATUS FOR VEHICLE}

1 is a side view of a motorcycle in an embodiment of the present invention;

2 is a side view of the air cleaner device of the motorcycle;

3 is a top view of the air cleaner device,

4 is a cross-sectional view taken along line A-A of FIG.

5 is an enlarged view illustrating main parts of FIG. 2;

6 is another enlarged view illustrating main parts of FIG. 2;

FIG. 7 is a view of an element holder of the air cleaner device as seen in the direction of arrow B of FIG. 2;

FIG. 8 is a view of the case cover of the air cleaner device seen in the direction of arrow B of FIG. 2;

9 is a side view of the case cover;

10 is a top view of the duct cover of the air cleaner apparatus,

11 is a side view of the duct cover;

12 is a rear view of the duct cover;

13 is an exploded side view of the air cleaner apparatus;

14 is a perspective view of the front locking member and the front locking portion of the duct cover;

15 is a perspective view of a rear locking member and a rear locking portion of the duct cover;

<Explanation of symbols for the main parts of the drawings>

1: motorcycle (vehicle)

42: rear fender

50: air cleaner device (intake device)

51: air cleaner case

53: intake duct

61: Case Cover

108: duct fitting groove (attachment)

112: Duct Cover

116: opening through the duct (opening)

124 rib

128: protruding shape locking part (locking part)

141: front locking portion (locking portion)

147: rear locking portion (locking portion)

The present invention relates to an intake apparatus of a vehicle suitable for a motorcycle or the like.

Conventionally, in the intake apparatus of a vehicle, in order to prevent intrusion of water into the air cleaner case, a watertight rib is provided on the rear fender facing the intake port of the intake duct of the air cleaner case (for example, Japanese Patent Registration Publication) 3308340).

However, the above conventional configuration has had a limitation on the range of the rib for waterproofing. In addition, depending on the assembly error of the rear fender and the air cleaner case, there is a problem that the gap between them increases and decreases, affecting the drainage of water flowing on the rear fender.

Accordingly, the present invention provides a vehicle intake apparatus that can cover the outer circumference of the intake duct in a wide range to improve waterproofness and maintain drainage between the rear fender and the air cleaner case to improve drainage.

As a means for solving the above-mentioned problems, the invention described in claim 1 includes an air intake duct (for example, an intake duct 53 of the embodiment) which performs intake into an air cleaner case (for example, the air cleaner case 51 of the embodiment). And a duct cover (for example, the duct cover 112 of the embodiment) covering the outer circumference of the intake duct on the case cover (for example, the case cover 61 of the embodiment). do.

According to this configuration, it becomes possible to cover a relatively wide range around the intake duct by the duct cover. In addition, it becomes possible to handle the duct cover integrally with the case cover.

The invention described in claim 2, wherein the duct cover has an opening through which the intake duct penetrates (e.g., the opening 116 for duct penetration in the embodiment), and the opening is attached to the case cover of the intake duct (e.g., It is characterized by the support by the duct fitting part 108 of an Example.

According to this structure, it becomes possible to share the attachment part of an intake duct and the attachment part of a duct cover, and to simplify these attachment structures.

The invention described in claim 3 is characterized in that an outer circumferential portion of the duct cover is fastened to a catch portion (for example, each catch portion 128, 141, 147 of the embodiment) provided on the case cover.

According to this structure, compared with the case where the duct cover is attached to the case cover by using a fastener or the like, it is possible to simplify these attachment structures. In addition, the floating of the outer circumference of the duct cover can be effectively prevented.

At this time, as in the invention described in claim 4, when the rear part of the duct cover is configured to hang on the rear fender (for example, the rear fender 42 of the embodiment), the gap between the rear fender and the duct cover can be kept constant. Become.

The invention described in claim 5 is characterized in that a rib (for example, the rib 124 of the embodiment) extends in the front-rear direction on the side of the duct cover rear side facing the rear fender.

According to this configuration, it is possible to secure a predetermined gap between the duct cover rear portion and the rear fender.

The invention described in claim 6 is characterized in that the duct cover is made of an elastic member.

According to this structure, even if it interferes with the bottom plate of a sheet | seat, it becomes easy to deform | transform and can absorb this favorably.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the direction of back, front, left, right, etc. in the following description is made the same as the direction in a vehicle unless there is particular description. In the drawing, arrow FR indicates the front of the vehicle, arrow LH indicates the left side of the vehicle, and arrow UP indicates the upper side of the vehicle.

As shown in FIG. 1, a pair of left and right front forks 3 pivotally supporting the front wheels 2 of a motorcycle (vehicle 1) are provided at the front end of the body frame 5 via a steering stem 4. The swing arm 8 pivotally pivotally supported on the head pipe 6 and pivotally supporting the rear wheels 7 is pivotably pivoted on the pivot shaft 9 provided at its front end at approximately the center of the body frame 5. do. The body frame 5 has a so-called diamond shape mainly made up of the main frame 11 which is bent downward after extending from the top of the head pipe 6 to the rear, and is attached to both sides of the lower end of the main frame 11. The pivot shaft plate 12 and the lower end of the down tube 13, which are inclined from the lower part of the head pipe and extends rearward and downward, are connected to the front and rear of the crankcase 15 of the engine 14 mounted at the center of the vehicle body, respectively. The engine 14 is suspended in the body frame 5 via the down tube 13 and the pivot shaft plate 12.

The upper end of the main frame 11 is coupled to the front end of the seat frame 16 extending to the rear, the middle portion of the seat frame 16 is inclined in the vicinity of the pivot axis (9) extending toward the upper rear The upper end of the frame 17 is coupled. The rear cushion 18 is installed at the rear of the main frame 11 in an inclined forward position, and the upper end of the rear cushion 18 is connected to the main frame 11 and the lower end to the swing arm 8, respectively. do. The rear sprocket 19 is attached to the left side of the rear wheel 7, and the drive chain 22 is caught by the rear sprocket 19 and the drive sprocket 21 provided on the left side of the rear part of the engine 14. The driving force of the engine 14 can be transmitted to the rear wheels 7. On the left side of the swing arm 8 is attached a chain case 23 for receiving the drive chain 22 and the rear sprocket 21.

A fuel tank 24 supported by the main frame 11 is installed above the engine 14, and a seat 25 supported by the seat frame 16 is installed behind the fuel tank 24. In the seat 25, the front part is used for the driver, and the rear part is used for the rear occupant. A driver step 26 is supported on the lower front side of the pivot shaft plate 12, and a step holder 27 inclined and extending upward and backward is provided on the lower rear side of the pivot shaft plate 12. The rear occupant step 28 is supported at the rear end of the 27. At the lower end of the pivot shaft plate 12, the main stand 29 and the side stand 31 are supported to be accommodated, respectively. The bar handle 32 is attached to the upper part of the steering stem 4, and the front fender 33 is attached to the middle part of the front fork 3. In addition, the upper cowl 37 is attached to the steering stem 4 together with the head lamp 34, the front winker 35, the meter device 36, and the like through a support stay not shown.

Side covers 38 are mounted on both sides of the center of the body frame 5 to cover the vehicle body side from the rear of the fuel tank 24 to the front of the seat 25, and the seat 25 is provided on the rear of the body frame 5. The rear cowl 39 covering the vehicle body from the bottom of the rear part to the rear side is mounted. A tail lamp 41 is provided at the rear end of the rear cowl 39, and a rear fender which is formed in a substantially semicircular shape as viewed from the side covering the upper part of the rear wheel 7 with a predetermined gap inside the rear cowl 39. 42 is installed. The rear winger 43 is attached to the portion under the tail lamp 41 in the rear fender 42. On the left side of the vehicle body rear part, for example, a dress guard 44 formed by assembling steel in a lattice form is provided, and an upper end of the dress guard 44 is attached to the rear part of the seat frame 16. . To the rear end of the seat frame 16 is attached a grab bar 45 inclined from both sides of the rear end of the seat 25 and extending upward and extending over the rear cowl 39.

On the crankcase 15 of the engine 14, the cylinder part 46 is installed upright in the state inclined slightly forward. An exhaust pipe 47 is connected to the front portion of the cylinder portion 46, and the exhaust pipe 47 is connected to a silencer 48 provided on the right side of the rear of the vehicle body after the exhaust pipe 47 passes through the front and the bottom of the crankcase 15. do. In addition, the downstream side of the carburettor 49 is connected to the rear part of the cylinder part 46, and the air cleaner apparatus (intake apparatus: 50) arrange | positioned substantially in the center of a vehicle body is connected to the upstream side of the said carburetor 49. As shown in FIG.

As shown in Figs. 2 and 3, the air cleaner device 50 is an air cleaner element (hereinafter simply referred to as element 52: 52) that filters intake air of the engine 14 in the air cleaner case 51. It is made by accommodating.

The air cleaner case 51 mainly consists of synthetic resins, such as polypropylene, and the intake duct 53 which consists of elastic members, such as EPDM (ethylene propylene diene monomer) extended to the upper wall part toward the back substantially, for example. Is connected, and a connecting tube 54 made of an elastic member such as EPDM is connected to the left side of the front wall in the same manner as extending substantially forward. In such an air cleaner apparatus 50, when the valve of the carburettor 49 is opened, the outside air is stored in the air cleaner case 51 from the inlet port 55 at the rear end of the intake duct 53 by the intake negative pressure of the engine 14. It is aspirated and introduced into the engine 14 via the connecting tube 54 and the carburetor 49 after the outside air is filtered through the element 52. On the other hand, the connecting tube 54 is provided with a resonator 54a for reducing intake sound.

The air cleaner case 51 has a box-shaped case body 56 which opens upward, and an upper opening 57 of the case body 56 is an opening for installing the element 52 (hereinafter referred to as an element opening): 59 ) And the element holder 58 for closing the element holder 58 and the element opening 59 of the element holder 58 to be closed while leaving the opening for installing the intake duct 53 (hereinafter referred to as an duct opening: 62). The case cover 61 is provided. The upper opening 57 of the case body 56 is formed along a dividing plane H which descends backwards and is gently inclined, and the element holder 58 is brought into contact with the dividing plane H so that the element holder 58 is in contact with the case body 56. Is mounted on.

The element 52 is formed by holding the filter paper 63 folded in a bellows shape as a frame 64 made of, for example, polypropylene, which is almost rectangular in view from the top, and has a flat rectangular parallelepiped shape having a predetermined thickness as a whole. It is attached to the opening 59 for elements of the element holder 58 so as to have an appearance and to make the thickness direction orthogonal to the division plane H. This element 52 is filtered through the outside air from the upper side in the thickness direction toward the lower side.

The case main body 56 is provided to have a predetermined depth in order to secure a predetermined intake capacity below the element 52, that is, downstream, and is provided so as to be larger than the element 52 as viewed from the upper surface. . A right front extension 66 for displacing the front wall right portion 65 to the inclined right front side is formed on the front right side of the case body 56, and a connecting tube 54 is provided on the front wall right side 65. A connection opening (not shown) is formed, and a connecting tube 54 is fitted in the opening so that the rear end thereof faces the case body 56. On the other hand, at the lower front side of the case main body 56, the front retreat part 67 formed in the inclined inclined wall descending backwards to avoid the rear cushion 18 is provided, and at the lower rear side of the case main body 56, In order to avoid the subframe 17, a rear recess 68 is provided which is formed to form a slanted inclined wall that rises backward.

In the middle portion in the front-rear direction from the lower right side of the case body 56, a bypass bolt insertion portion 69a through which a bolt (not shown) can be inserted along the vehicle width direction is provided, and the upper portion of the case body 56 is provided. The left front and left rear bolt insertion penetrating portions through which a bolt (not shown) can be inserted along the direction orthogonal to the dividing plane H (hereinafter, sometimes referred to as the face perpendicular direction) at the front end portion and the rear end portion at the left side. 69b and 69c are provided, respectively. The bolts inserted through the respective bolt insertion holes 69a, 69b, and 69c are respectively fastened to the fastening portions (not shown) which are appropriately installed in the vehicle body frame 5 in correspondence thereto. The air cleaner device 50 is fixed to the vehicle body frame 5.

Referring to FIG. 7 together, the element holder 58 has a plate shape having substantially the same outer shape as the upper opening 57 of the case body 56 when viewed from above, and the opening 59 for the element at its central portion. ) And at the same time, a plurality of bolt insertion portions 71 are formed on the outer circumferential portion to allow the tapping bolt 72 (see FIG. 3) to pass through the surface perpendicular direction. The element holders are respectively fastened to the fastening parts (not shown) provided at the periphery of the upper openings 57 of the case body 56 correspondingly to the tapping bolts 72 inserted into the respective bolt insertion through parts 71. 58 is fixed to the case body 56.

The element openings 59 of the element holder 58 form a substantially rectangular shape that is long in the front-rear direction corresponding to the outer shape of the element 52 as viewed from the top, and the long side portions on both sides thereof are the same in the element 52. Corresponding to the outer circumferential shape, it is provided to be gently curved so as to protrude toward the outer circumferential side.

Moreover, the left side recess 95 formed by changing a part of the outer shape of the said element opening part 59 inside is corresponded to the outer shape of the element 52 in the center of the left part front side and the right part of the element opening part 59. And the right recess 96 are provided, respectively. Each of the recesses 95 and 96 enables the direction and the front and back of the element 52 to be attached.

Here, as shown in FIG. 5, a short rib portion 74 protruding downwardly in the plane direction in the bottom surface of the outer circumferential portion of the element holder 58 is provided over the entire circumference, and fitted with the short rib portion 74. A fitting fit groove 75 is provided over the entire circumference of the upper opening 57 of the case body 56. The sealing member 76 is provided in the fitting groove part 75, and the short rib part 74 and the fitting groove part 75 are fitted together, and the front end of the short rib part 74 is fitted into the fitting groove part ( It is pressed with the seal member 76 in 75 and thus the peripheral edge of the upper opening 57 of the case body 56 is sealed.

As shown in Figs. 2, 3, 8, and 9, the case cover 61 is of an up and down flat cover type provided to swell upward from the element opening 59 of the element holder 58, and the upper wall portion ( An outer circumferential wall protruding downward is formed on the outer circumference of 77, and a lower opening 78 is formed on the lower surface thereof to mate with the opening 59 for the element. The upper wall portion 77 of the case cover 61 has an approximately horizontal front horizontal portion 79 which is the first half thereof, and a rear inclined portion 81 which is inclined while descending backwardly, which is the latter half portion, and the upper wall portion 77 In the portion located slightly below the center of the opening, the duct opening 62 is formed in a substantially rectangular shape long in the front-rear direction over the front horizontal portion 79 and the rear inclined portion 81.

A total of four places at both the front and rear sides of the case cover 61 are provided with a bolt insertion through portion 82 through which the bolt 83 can be inserted along the surface perpendicular direction, respectively. The fastening part 84 corresponding to the part 82 is provided in the periphery of the element opening 59 of the element holder 58, respectively (refer FIG. 4, 7). A nut 85 is inserted into each of the fastening portions 84, and the case cover 61 is fastened by fastening the bolts 83 inserted into the respective bolt insertion through portions 82 to the respective fastening portions 84. It is fixed to the element holder 58.

Here, as shown in Fig. 5, the frame 64 of the element 52 is provided with a short flange portion 86 protruding toward the outer circumferential side from an approximately center portion in the thickness direction of the element 52, while being provided over its entire circumference. From the distal end of the short flange portion 86, a lower short rib portion 87 and an upper short rib portion 88 protruding downward and upward in the thickness direction (planar direction) are provided over the entire circumference. The short flange portion 86 and each of the short rib portions 87 and 88 form a holding portion 89 having a substantially T-shaped cross section at the outer circumference of the frame 64.

On the other hand, in the circumferential edge portion of the element opening 58 of the element holder 58, the lower fitting groove portion 91 which can be fitted with the shorter rib portion 87 of the lower portion 89 of the element 52 is fitted. Is provided over the entire circumference, and the upper edge portion of the lower opening 78 of the case cover 61 that can be fitted with the upper short rib portion 88 of the held portion 89 of the element 52 is fitted therein. The fitting groove 92 is installed over the entire circumference. Then, the holding portion 89 is fitted to the element holder 58 and the case cover 61 so that the fitting groove portions 91 and 92 and the short rib portions 87 and 88 are fitted together. The element 52 is held by 51.

Each of the fitting groove portions 91 and 92 is provided with sealing members 93 and 94, and the respective fitting groove portions 91 and 92 and the end portions 87 and 88 are fitted to each other to form short rib portions. The tips of the 87 and 88 are pressed to the respective sealing members 93 and 94 in the respective fitting grooves 91 and 92, and thus the peripheral edges of the element openings 59 and the lower openings 78 are sealed. .

Referring to FIG. 7 together, the lower end flange portion 99 formed by displacing downward with respect to the dividing plane H is provided in the element opening 59 of the element holder 58. The lower flange portion 99 forms a small lower end opening 101 with respect to the element opening 59, and protruding portions 102 protruding toward the inner circumferential side are formed at long side portions of both sides of the lower opening 101. A total of four locations are formed one by one back and forth, and each of the protrusions 102 maintains and fixes an outer circumference of the element guard 103 made of a thin wire mesh for protecting the element 52 from the backfire of the engine 14. do.

A seal member 104 is joined to a portion along the front edge of the element opening 59 at the upper surface side of the front portion of the element holder 58, and the seal member 104 is distal to the front edge of the case cover 61. By pressing by the seal, the seal is again applied to a portion immediately in front of the element opening 59 and the lower opening 78. In addition, an outer circumferential short rib portion protruding upward in the plane perpendicular direction is provided on an outer circumferential portion that is front side than the insertion through portion 71 of the left and right bolts located at the middle portion in the front-rear direction from the upper surface side of the front portion of the element holder 58 ( 105) is installed to follow. In addition, on both sides of the front portion of the element holder 58, the support wall 107 for supporting the damper rubber 106 in contact with the vehicle body frame 5 is cut so that a part of the outer circumferential rib portion 105 is cut. do.

Referring to Figs. 2 and 3, the intake duct 53 is located approximately in the center of the vehicle width direction, and has an approximately elliptical shape with a wide cross section in the left-right direction (vehicle width direction) (see Fig. 12), the upper half of which is the case. It is provided so as to extend upward from the upper wall portion 77 of the cover 61 and then extends toward the rear side, and the lower half portion is provided so as to extend directly toward the rear side from the upper wall portion 77 of the case cover 61. The inlet 55 of the rear end of the intake duct 53 is located near the rear end of the case cover 61 so that the center height thereof is approximately equal to the height of the front horizontal portion 79 of the upper wall portion 77 of the case cover 61. Is installed.

The base end outer peripheral part of the intake duct 53 is provided with the duct fitting groove part (attachment part 108) opened toward the outer peripheral side over the whole circumference. The duct fitting groove 108 can be fitted on the inner circumferential side of the circumferential edge portion of the duct opening 62. As shown in FIG. 6, the duct fitting groove 108 includes an upper lip portion 109 that is close to the upper surface of the case cover 61 and a lower lip portion 111 that is close to the lower surface of the case cover 61. The lip part 109, 111 is inserted into the circumferential edge of the duct opening 62, and the inner edge of the duct opening 62 is brought into close contact with the bottom of the duct fitting groove 108. The inlet duct 53 is supported by the case cover 61 at the same time as the opening part 62 is sealed.

As shown in FIG. 2, the inlet port 55 of the intake duct 53 is opened toward the rear side, and the bottom plate 25a of the sheet 25 is disposed above the inlet port 55. The side cover 38 and the rear cowl 39 are disposed at both sides, and the rear fender 42 is disposed at the rear side so that the bottom plate 25a, the side cover 38, the rear cowl 39 and the rear are disposed. Although the periphery of the inlet port 55 is surrounded by the fender 42, intrusion of foreign matter such as water or mud into the intake duct 53 is prevented, In order to more effectively prevent intrusion, the air cleaner device 50 is provided with a duct cover 112 that forms a predetermined intake space surrounded by a partition wall around the intake port 55. As shown in Figs. 2, 3, 8, and 10, the duct cover 112 covers the entire circumference of the outer periphery of the intake duct 53, and is also a member separate from the case cover 61 and the case cover 61 as a member. Is installed on. The intake duct 53 passes through the opening 62 provided in the case cover 61 and the opening 116 provided in the duct cover 112.
Referring to FIGS. 3, 10, and 11 together, the duct cover 112 is made of an elastic member such as (PVC (polyvinyl chloride)), for example, and is located above the upper wall portion 77 of the case cover 61. From the back of the mating wall portion 113 which can be almost entirely contacted from the back, the vertically descending wall portion 121, the bottom wall portion 122, and the separation wall portion 123, which will be described later, are provided.

delete

The matching wall portion 113 is formed in a substantially square shape as seen from the upper side by the front edge portion thereof being positioned a predetermined amount behind the front edge portion of the upper wall portion 77 of the case cover 61, and the first half portion thereof has the front horizontal portion ( 79 is the front mating horizontal portion 114 corresponding to the rear mating portion 114 and the rear mating portion 115 corresponding to the rear tilting portion 81. In the substantially center portion of the matching wall 113, an opening 116 for duct penetration, which is formed in a substantially rectangular shape long in the front and rear direction, is provided over the front matching horizontal portion 114 and the rear matching inclination portion 115.

The duct penetration opening 116 is provided to be much larger than the duct opening 62 of the case cover 61. Here, the upper lip portion 109 of the duct fitting groove portion 108 of the intake duct 53 protrudes further from the upper peripheral portion of the upper surface side to the outer peripheral side, and the circumferential edge portion of the duct penetration opening 116 of the duct cover 112. It has a sub lip part 109a (refer FIG. 6) which adjoins an upper surface, and inserts the circumferential edge part of the duct penetration opening part 116 into this sub lip part 109a and the case cover 61, and the outer edge of an upper lip part The inner edge of the duct penetrating opening 116 is brought into close contact with the duct penetrating opening 116, and in this state, the duct cover 112 is supported by the case cover 61 together with the intake duct 53. .

A front standing wall portion 117 protruding upward is provided at the front edge of the registration wall portion 113, and a ridge line of the front registration horizontal portion 114 and the rear registration inclination portion 115 of the registration wall portion 113 is provided. Similarly, a pair of intermediate standing wall portions 118 protruding upwards are installed so as to be divided into left and right through the opening 116 for duct penetration. On the other hand, the upper edge part of each intermediate standing wall part 118 is formed in step shape so that the height of the upper edge of the vehicle width direction outer side may become higher than the height of the upper edge of the vehicle width direction inner side.

Here, a flange-shaped wall portion 119 protruding to the outer circumferential side is provided at a portion located between each intermediate standing wall portion 118 in the intake duct 53, and each intermediate portion is provided at both sides of the flange-shaped wall portion 119. When the end part of the intake duct 53 side of the standing wall part 118 contacts, each intermediate standing wall part 118 and the flange-shaped wall part 119 are integrally continuous over the full width of the duct cover 112. As shown in FIG. (See Figure 12).

The rear portion of the duct cover 112 includes a vertically falling wall portion 121 protruding downward from the rear edge portion of the mating wall portion 113 to the top surface of the element holder 58, and a lower edge of the vertically falling wall portion 121. The rear wall portion 122 extends backward along the division plane H from the portion, and extends upwardly along the upper front side of the rear fender 42 positioned immediately behind the rear end portion of the bottom wall portion 122. Spaced wall portion 123 is installed. The spaced wall portion 123 is disposed with a predetermined gap between the rear fenders 42 and forms a substantially spherical shape in the shape of a protrusion on the inclined upper side corresponding to the shape of the rear fenders 42 (see FIG. 12). The flat bottom wall 122 has an arc-shaped intersection in the form of a protrusion on the front side when viewed from the top.

Referring to FIG. 12, the left and right sides of the spaced apart wall 123 (in other words, the opposite side to the rear fender 42) may be formed in an arc shape along the shape of the spaced apart wall 123. A pair of ribs 124 is installed. Each rib 124 protrudes downward in parallel in the front-rear direction, and is installed to have a constant protruding height over its entire length. The protruding height of each rib 124 is equal to the gap between the rear fender 42 and the spaced wall portion 123, so that the tip of each rib 124 is the rear fender between the duct cover 112 and the rear fender 42. By contacting 42, a predetermined gap is secured. On the other hand, chamfered shapes are formed on both sides of the separation wall 123 for convenience of molding and for convenience of layout of peripheral components.

The separation wall part 123 is installed to overlap most of the intake duct 53 and the intake port 55 located in the vehicle width direction center part as seen from the rear surface. Here, side portions 125 that are orthogonal to the vehicle width direction are provided in portions of the duct cover 112 that are later than the respective standing wall portions 118. The upper edge of each side wall part 125 is formed substantially horizontally, and it is provided so that the upper edge height may become substantially equal to the upper height of the intake duct 53. As shown in FIG.

The plan of each of the side wall portion 125, the spaced wall portion 123, the bottom wall portion 122, the vertically descending wall portion 121, the rear mating inclined portion 115, each intermediate standing wall portion 118 and the intake duct 53 The top wall 119 surrounds the outer periphery of the inlet port 55 of the inlet duct 53 together with the bottom plate 25a of the seat 25 so that the inlet port 55 has a roughly reverse triangular shape as viewed from the side. The use space portion K is formed, and the penetration of water into the intake duct 53 is effectively prevented.

That is, each of the intermediate standing wall portions 118 and the flanged wall portions 119 becomes a partition wall covering the front of the inlet port 55, and the movement of water to the inlet port 55 side due to flow along the air cleaner case 51 is prevented. At the same time, the separation wall portion 123 becomes a partition wall behind the suction port 55 to prevent movement of water toward the suction port 55 side by flowing along the rear fender 42 and the like, and both side wall portions 125 are formed on the suction port. (55) It becomes a partition on both sides, and movement of water to the intake port 55 from the clearance between each component, such as the seat 25, the side cover 38, and the rear cowl 39, is prevented.

Here, at the front end portion of the duct cover 112, the front standing wall portion 117 becomes a partition wall and the movement of water to the rear, that is, the suction port 55 is prevented. In addition, a predetermined gap is secured by the ribs 124 between the spaced wall portion 123 and the rear fender 42 so that water flowing over the rear fender 42 can be drained well.

The side wall portion 125 on the left side is formed for intake so as to extend from the middle standing wall portion 118 to the rear end portion of the bottom wall portion 122 in the front-rear direction and from the bottom wall portion 122 to the vicinity of the center of the separation wall portion 123 in the vertical direction. The side wall opening part 126 which becomes a main air inlet into space K is provided. The side wall opening 126 has a shading part formed by continuously forming a front wall along a front edge of the side wall opening 126 and an upper wall along an upper edge to prevent intrusion of water into the intake space K. 127 protrudes toward the vehicle width direction outer side.

As shown in FIG. 13, the intake duct 53 and the duct cover 112 are integrally attached to the case cover 61 by sharing the duct fitting groove 108 of the intake duct 53, and the element At the time of repair of the 52, the intake duct 53 and the duct cover 112 can be integrally detached with the case cover 61 with respect to the element holder 58 only by detaching the respective bolts 83. do.

4, 8, and 9, each bolt insertion through portion 82 located at the outer circumferential portion of the case cover 61 has a cylindrical protrusion engaging portion 128 projecting toward the upper side in the plane direction. Are respectively installed. Each of the protrusion-shaped engaging portions 128 has a configuration divided into two pairs of front and rear partitioning members 131 by slits 129 formed on the left and right sides thereof, and elastically so that these partitioning members 131 are closely spaced from each other. It becomes deformable. The convex part 131a (refer FIG. 4) which protrudes to the inner peripheral side is formed in the front-end | tip part of each division member 131, and it sets so that the inner diameter may become slightly smaller than the head part of the bolt 83. As shown in FIG. The head portion of the bolt 83 is pushed inward while elastically deforming each of the partition members 131 so as to push each of the convex portions 131a so that the bolt 83 is not easily detached. It is possible.

On the other hand, as shown in Figs. 4, 10 and 11, the protruding shape of the case cover 61 at the outer circumferential portion of the duct cover 112, specifically, the front registration horizontal portion 114 and the rear registration inclination portion 115 At a position corresponding to the locking portion 128, a cylindrical portion 132 through which the protrusion-shaped locking portion 128 can be inserted is protruded downward in the vertical direction. Each cylindrical part 132 is provided so that the inner diameter may be larger diameter than the outer diameter of the protrusion-shaped latching part 128, and protrude along a perpendicular direction.

Each of the protruding locking portions 128 and the cylindrical portion 132 has the duct cover 112 attached to the element holder 58, and the protruding locking portions 128 correspond to the corresponding cylindrical portions 132. Inwardly), and each protruding locking portion 128 is partially pressed from the inner surface of each cylindrical portion 132, and as a result, each protruding locking portion 128 and each cylindrical portion 132 It is elastically engaged. The engagement of the protruding engaging portion 128 and the cylindrical portion 132 contributes to the integral coupling of the duct cover 112 and the case cover 61. On the other hand, the tip portion of each protruding engaging portion 128 is formed in a tapered shape so as to be easily inserted into the cylindrical portion 132.

3, 10, and 11, the front edge of the duct cover 112 extends toward the front from the front of the lower end portions of both cylindrical portions 132 on the front side of the duct cover 112, respectively. A pair of front catching members 135 including a catching bar 133 and a catching tank 134 installed integrally with an intermediate portion of each catching bar 133 are installed. In addition, referring to FIG. 12, the vehicle width direction center portion at the rear edge portion of the duct cover 112 (the rear edge portion of the separation wall portion 123), in other words, protrudes upward at the upper end portion of the separation wall portion 123. At the same time, the support wall 136 is installed, and a locking bar 137 extending toward the rear from the support wall 136 and a locking jaw 138 integrally provided at an intermediate portion of the locking bar 137. The rear locking member 139 is installed.

3, 8, and 9, the case cover 61 has a front locking portion corresponding to each of the front locking members 135 at a position immediately before the two bolt insertion through portions 82 on the front side thereof. 141 are respectively provided. Referring to FIG. 14 together, each front locking portion 141 has a front wall portion 142, a rear wall portion 143, and an outer wall portion 144 extending therebetween, so that the front locking portion 141 has a substantially c shape. In this case, the inverted U-shaped front groove 145 is formed in the front wall 142 and the U-shaped rear groove 146 is opened in the rear wall 143.

2, 3, and 13, the rear fenders 42 are provided with rear locking portions 147 at positions corresponding to the rear locking members 139. Referring to FIG. 15 together, the rear locking portion 147 is formed with a substantially U-shaped groove portion 149 which opens upwardly to a standing wall portion 148 parallel in the vehicle width direction protruding on the rear fender 42. It is done. The groove 149 is capable of regulating the upward movement of the locking bar 137 by pushing the locking bar 137 of the rear locking member 139 from above.

When engaging the respective locking members 135 and 139 to each of the locking portions 141 and 147, first, each of the front locking portions 141 is held in a state in which the duct cover 112 stands up so that its front portion is lowered. Each front locking member 135 is inserted between the front and rear wall portions 142 and 143, and in this state (shown by the dashed-dotted line in FIG. 14), the duct cover 112 is tilted to move its rear portion downward to be locked. The bar 133 is in contact with the bottom of the front groove 145 from the bottom and at the same time in contact with the bottom of the rear groove 146 from the top, and the catch 134 is in contact with the front wall 145 from the front. Each of the front locking members 141 is in a locked state in which movement of the front locking member 141 is controlled upward and downward and backward.

In addition, the state in which the locking bar 137 of the rear locking member 139 which moves downward by tilting the duct cover 112 is located above the groove 149 of the rear locking portion 147 (FIG. 15 is pushed into the groove portion 149 at the same time as shown in the dashed-dotted line (15) and at the same time the bottom portion of the groove portion 149, and the catch 138 is in contact with the standing wall portion 148 from the rear The locking member 139 is in an engaged state in which movement of the up, down, and forward directions is restricted.

At this time, each protruding engaging portion 128 is inserted into the corresponding cylindrical portion 132 to be engaged, and in this state, the bolts 83 are inserted through the bolt insertion through portions 82 so that these elements are formed. By fastening to the fastening portion 84 of the holder 58, the duct cover 112 is fixed to the element holder 58 together with the intake duct 53 and the case cover 61, and at the same time, the rear portion of the duct cover 112 is fixed. It is caught by the rear fender 42.

As described above, in the vehicle air cleaner apparatus 50 of the above embodiment, the case cover 61 of the air cleaner case 51 includes the intake duct 53 for performing intake into the air cleaner case 51. A relatively wide range around the intake duct 53 by the duct cover 112 is provided on the side and the duct cover 112 is integrally provided on the case cover 61 to cover the outer circumference of the intake duct 53. Since it becomes possible to cover, the waterproof property of the air cleaner case 51 can be improved. In addition, since the duct cover 112 can be handled integrally with the case cover 61, the assembly and removal operations thereof can be facilitated, and the number of work steps can be reduced.

Moreover, in the said air cleaner apparatus 50, the said duct cover 112 has the duct penetration opening 116 which penetrates the said intake duct 53, and the said duct penetration opening 116 is made into the said intake duct. By supporting the attachment portion of the intake duct 53 and the attachment portion of the duct cover 112 by simplifying the attachment portion of the intake duct 53 and the attachment portion of the duct cover 112 by supporting the attachment portion 53 to the case cover 61. Since it becomes possible, the cost of the air cleaner case 51 can be reduced.

Moreover, in the said air cleaner apparatus 50, the duct cover 112 is removed by subtracting the outer peripheral part of the said duct cover 112 to each engaging part 128, 141, 147 provided in the case cover 61. As shown in FIG. Compared with the case where the fastener is attached to the case cover 61 by using a fastener or the like, since the attachment structure thereof can be simplified, the cost of the air cleaner case 51 can be reduced. In addition, since the floating of the outer peripheral portion of the duct cover 112 can be effectively prevented, the waterproofness and the commercial property of the air cleaner case 51 can be maintained satisfactorily.

At this time, if the rear portion of the duct cover 112 is configured to stop by the rear fender 42, the gap between the rear fender 42 and the duct cover 112 can be kept constant. 42) It can improve the drainage of water flowing on the stomach.

Moreover, in the said air cleaner apparatus 50, by providing the rib 124 extended in the front-back direction on the opposite surface side with the rear fender 42 in the space | separation wall part 123 of the back part of the said duct cover 112, Since it is possible to secure a predetermined gap between the separation wall portion 123 and the rear fender 42, water flowing over the rear fender 42 can be smoothly drained to the front thereof.

In addition, in the air cleaner apparatus 50, since the duct cover 112 is made of an elastic member, the duct cover 112 is easily deformed even if it interferes with the bottom plate 25a of the sheet 25, so that it can be absorbed satisfactorily. , The assembly and removal work of the duct cover 112 and the sheet 25 can be facilitated, and the number of work processes can be reduced.

In addition, this invention is not limited to the said Example, For example, you may apply to the thing provided with the wet or cartridge type air cleaner element.

In addition, the structure in the said Example is an example, It cannot be overemphasized that various changes are possible in the range which does not deviate from the summary of invention, such as a material, a shape, and a structure, as well as being not limited to application to a motorcycle.

According to the invention described in claim 1, the waterproofness of the air cleaner case can be improved by covering the periphery of the intake duct widely. In addition, the assembly and removal work of the duct cover and the case cover can be facilitated, and the number of work steps can be reduced.

According to the invention described in claim 2, the attachment structure of the intake duct and the duct cover can be simplified to reduce the cost of the air cleaner case.

According to the invention described in claim 3, the attachment structure of the duct cover can be simplified to reduce the cost of the air cleaner case. In addition, it is possible to prevent floating of the outer circumference of the duct cover to maintain the waterproofness and the commerciality of the air cleaner case.

According to the inventions of Claims 4 and 5, it is possible to secure a gap between the rear fender and the duct cover to improve the drainage of water flowing on the rear fender.

According to the invention described in claim 6, the assembling and removing operations of the duct cover and the sheet can be facilitated, and the number of work steps can be reduced.

Claims (8)

An intake duct for intake into the air cleaner case is provided on the case cover side of the air cleaner case, While installing the duct cover which is a member separate from the case cover which covers the outer periphery of the intake duct to the case cover, An opening is provided in the case cover, an opening is provided in the duct cover, and the intake duct passes through the openings in both the case cover and the duct cover, so that the duct cover covers the entire circumference of the intake duct. Intake device for a two-wheeled vehicle characterized in that. The intake apparatus for a two-wheeled vehicle according to claim 1, wherein the opening provided in the duct cover is supported by an attachment portion of the intake duct to the case cover. The intake apparatus for a two-wheeled vehicle according to claim 1 or 2, wherein an outer circumferential portion of the duct cover is hooked to a locking portion provided on the case cover. The intake apparatus for a two-wheeled vehicle according to claim 1 or 2, wherein the rear portion of the duct cover is fastened to a rear fender. The intake apparatus for a two-wheeled vehicle according to claim 4, wherein a rib extending in the front-rear direction is provided on the side of the duct cover rear portion facing the rear fender. The intake apparatus for a two-wheeled vehicle according to claim 1 or 2, wherein the duct cover is made of an elastic member. 2. The duct cover according to claim 1, wherein a pair of intermediate standing wall portions are provided in the duct cover, a flanged wall portion is provided in the intake duct, and the intermediate standing wall portion and the flanged wall portion are integrated over the entire width of the duct cover. Intake apparatus for a two-wheeled vehicle characterized in that the continuous continuous. The base end outer circumference of the intake duct is provided with a duct fitting groove portion which is opened toward the outer circumference side over the entire circumference of the intake duct, and the lip fitting groove portion is an upper lip portion which is in close contact with the upper surface of the case cover. An intake apparatus for a motorcycle, characterized in that it has a lower lip portion in close contact with a lower surface of the case cover.

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