JP2014145311A - Air cleaner of internal combustion engine for saddle-riding type vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner not affecting appearance of a vehicle, and capable of reducing the number of components, simplifying a structure, and further preventing falling of an element supporting plate in maintenance, with respect to the air cleaner of an internal combustion engine for a vehicle in which a case body and a case cover are connected by a connection face vertically extended, and a cleaner element is disposed on the element supporting plate held between the case body and the case cover.SOLUTION: A first projecting wall 61 projecting toward an element supporting plate 46 side is disposed on an inner wall of a case body 42 in a state of being kept into contact with an element supporting plate 46 or close thereto, and the element supporting plate 46 is provided with a second projecting wall 62 overlapped to the first projecting wall 61 by being kept into contact therewith or close thereto at least from its upper part and lower part.

Description

  The present invention relates to a cleaner case in which a case main body and a case cover are connected in a splitting manner extending in a vertical direction, an element support plate sandwiched between the case main body and the case cover, and the element support plate. The present invention relates to an air cleaner for a saddle-ride type vehicle internal combustion engine comprising a cleaner element provided on the element support plate so as to divide the inside of the cleaner case into an unpurified chamber and a purified chamber.

  The cleaner case is constructed by connecting the case body and case cover to the left and right in the vehicle width direction so that they can be divided into left and right sides. The cleaner case is made up of the element case with the element support plate and the cleaner element provided on the element support plate. An air cleaner for an internal combustion engine for a motorcycle that is partitioned into a chamber is known from Patent Document 1. In this structure, the upper and lower portions of the element support plate are provided with protrusions protruding toward the case body so as to face the outer wall surfaces of the upper and lower portions of the case body from the outside, and are formed on the protrusions. Engaging locking protrusions that engage with the locked holes protrude from the upper and lower outer wall surfaces of the case body, and are engaged with the case body by an engagement mechanism that includes the locked holes and the locking protrusions. The element support plate is held by the case body by sandwiching the open end of the case body from above and below with the upper and lower convex parts, and the structure of the case cover from the case body during maintenance etc. by such structure The element support plate is prevented from falling off from the case body at the time of attachment / detachment.

Japanese Patent No. 3393689

  However, the one disclosed in Patent Document 1 requires at least two sets of upper and lower engagement mechanisms, which not only increases the number of engagement mechanisms and complicates the structure, but also the engagement mechanism is a cleaner. By being arranged outside the case, the vehicle appearance is easily affected. Therefore, in the one disclosed in Patent Document 1, the engagement / engagement mechanism is hidden by a cover that covers the cleaner case from the outside, but this increases the number of parts and weight.

  The present invention has been made in view of such circumstances, and prevents the element support plate from falling off during maintenance while preventing the appearance of the vehicle from being affected and reducing the number of parts and simplifying the structure. An object of the present invention is to provide an air cleaner for an internal combustion engine for a saddle-ride type vehicle that can be used.

  In order to achieve the above object, the present invention provides a cleaner case in which a case main body and a case cover are connected to each other by a connecting surface extending in a vertical direction, and an element support sandwiched between the case main body and the case cover. An air cleaner for a saddle-ride type vehicle internal combustion engine comprising a plate and a cleaner element provided in the element support plate so as to divide the cleaner case into an unpurified chamber and a purified chamber in cooperation with the element support plate A first projecting wall projecting toward the element support plate in a state of being sandwiched between the case main body and the case cover abuts the tip end of the first projecting wall against the element support plate. Projecting so as to be close to the element support plate, the element support plate is connected to the case body and Serial second protruding wall to polymerize contact with or close to at least upper and lower is the first feature to be projected in a state of being sandwiched between the case cover to the first protruding wall.

  According to the present invention, in addition to the configuration of the first feature, the second projecting wall is superposed on the first projecting wall from above, and the bottom is superposed on the first projecting wall from below. A second feature is that the wall portion and the connecting wall portion for connecting the upper wall portion and the lower wall portion are integrally formed.

  In addition to the configuration of the first or second feature, the present invention provides the case main body and the case main body in the direction orthogonal to the coupling surface of the case main body and the case cover on the outer peripheral edge of at least the upper portion of the element support plate. A support wall portion protruding toward the case cover is integrally formed so as to be sandwiched between the case main body and the case cover, and a protrusion amount of the second protrusion wall from the coupling surface is determined by the support wall portion. It is set as the 3rd characteristic that it is set larger than the protrusion amount to the said case main body side from the said joint surface.

  In the present invention, in addition to any of the configurations of the first to third features, the first projecting wall has a cross-sectional shape that surrounds the internal space with a peripheral wall, and the opening that communicates with the internal space The second projecting wall is formed so as to be part of a peripheral wall, and the second projecting wall is formed so as to cover the first projecting wall at a portion excluding the opening so that the inner space communicates with the purification chamber. This is the fourth feature.

  According to the present invention, in addition to any one of the first to fourth features, the element support plate is sandwiched between the case body and the case cover via a seal member made of an elastic material. The design dimension of the second projecting wall is set such that a gap is generated between the first projecting wall and the second projecting wall in a state where the element support plate is sandwiched between the case body and the case cover. This is the fifth feature.

  In addition to any of the configurations of the first to fifth features, the present invention divides an inlet chamber that leads to an air inlet provided in the case cover from the unpurified chamber, and the case cover and the A wall portion formed between the element support plates is supported between the element support plate and the case cover, and a suction duct that communicates between the inlet chamber and the unpurified chamber and penetrates the wall portion in an airtight manner. A sixth feature is that the wall portion is supported by the element support plate at a portion corresponding to a tip portion of the first projecting wall that is supported by a portion and contacts the element support plate on the purification chamber side. To do.

  In addition to any one of the first to sixth features, the present invention further provides the first projecting wall projecting from the inner wall of the case body so that the first projecting wall is spaced upward from the lower end wall of the case body. This is a seventh feature.

  According to the first feature of the present invention, the first projecting wall projecting toward the element support plate projects from the inner wall of the case main body so that the tip of the first projecting wall is in contact with or close to the element support plate. Since the second projecting wall protruding from the element support plate abuts or approaches the first projecting wall at least from above and below, the element support plate is detached from the case body when the case cover is attached to or detached from the case body. The element support plate can be held on the case body side by the first and second projecting walls coming into contact with each other and getting caught even if it is about to fall off, and the element support plate is prevented from falling off during maintenance. Can do. Further, in order to prevent the element support plate from falling off, it is only necessary to have a first projecting wall on the case body side and a second projecting wall on the element support plate side, and only one set of the first and second projecting walls is provided. Even so, the drop prevention effect can be obtained, and the number of parts can be reduced and the structure can be simplified. Moreover, since the first and second projecting walls are disposed in the cleaner case, the appearance of the vehicle is not affected, and a good appearance can be obtained while eliminating the need for a cover that covers the cleaner case.

  According to the second feature of the present invention, since the second projecting wall integrally includes the upper wall portion, the lower wall portion, and the connecting wall portion, the rigidity of the second projecting wall can be ensured. .

  According to the third aspect of the present invention, the support wall portion formed integrally with the outer peripheral edge of at least the upper portion of the element support plate is sandwiched between the case main body and the case cover, and from the coupling surface of the case main body and the case cover. Since the projecting amount of the second projecting wall is larger than the projecting amount from the coupling surface of the support wall portion to the case body side, when attaching the element support plate so as to be sandwiched between the case body and the case cover, Even if there is a support wall at least at the outer peripheral edge of the upper part, the second protruding wall can be easily seen from at least the upper outside, and the positions of the first protruding wall on the case body side and the second protruding wall on the element support plate side are mutually aligned. The element support plate can be easily attached to a predetermined position while confirming the above, and the work efficiency during maintenance is improved.

  According to a fourth aspect of the present invention, the first protruding wall having a cross-sectional shape surrounding the internal space with the peripheral wall and having an opening leading to the internal space in a part of the peripheral wall, Since the second projecting wall covers the portion excluding the opening, the contact area of the first and second projecting walls is increased when the element support plate is about to fall off from the case body when the case cover is attached to or detached from the case body. The support plate can be reliably held and the rigidity of the first and second protruding walls can be increased. Moreover, since the internal space in the first protruding wall communicates with the purification chamber, the capacity of the purification chamber can be ensured by making the inside of the first protruding wall a part of the purification chamber.

  According to the fifth feature of the present invention, the element support plate is sandwiched between the case body and the case cover via the seal member made of an elastic material, and the design dimensions of the first and second protruding walls are the case body and the case. Since a gap is created between the first and second projecting walls with the element support plate sandwiched between the covers, even if a dimensional error occurs between the first and second projecting walls, A dimensional error can be absorbed in the gap. Therefore, in the structure in which the element support plate is elastically supported by the cleaner case via the seal member, the floating degree of freedom of the element support plate can be ensured, and sufficient sealing performance can be ensured.

  According to the sixth aspect of the present invention, the inlet chamber leading to the air inlet of the case cover is partitioned from the unpurified chamber and formed between the case cover and the element support plate, and the wall portion supporting the suction duct is purified. Since the chamber is supported by the element support plate at a portion corresponding to the tip of the first protruding wall that is in contact with the element support plate on the chamber side, the wall portion can be supported from the purification chamber side by the first protruding wall. It becomes difficult to generate a gap between the part and the element support plate, and it is possible to improve the sealing property to prevent rain water from entering the unpurified chamber from the entrance chamber and to prevent the wall from rattling.

  Further, according to the seventh feature of the present invention, since the first projecting wall projects from the inner wall of the upper part of the case body, the first projecting wall is provided from the outside during maintenance, particularly when the element support plate is assembled to the case body side. 1 It becomes easy to visually recognize the protruding wall, and the element supporting plate can be easily attached to a predetermined position while confirming the positions of the second protruding wall on the element supporting plate side and the position of the first protruding wall on the case body side. Work efficiency during maintenance.

1 is a left side view of a motorcycle. FIG. 3 is a partially cutaway plan view of the air cleaner. It is sectional drawing which follows the 3-3 line of FIG. 2 and FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is a disassembled perspective view of a case cover and a suction duct.

  Embodiments of the present invention will be described with reference to FIGS. In the following description, front and rear, left and right, and top and bottom refer to directions viewed from a passenger who rides a motorcycle.

  First, in FIG. 1, this saddle-ride type vehicle is a scooter type motorcycle having a low floor type floor 10 on which a passenger sitting on a riding seat 16 puts his / her foot, and its body frame F has a front wheel WF. A head pipe 13 that supports a pivotable front fork 11 and a steering handle 12 connected to the front fork 11 so as to be steerable, a down tube 14 extending rearwardly downward from the head pipe 13, And a pair of left and right side frames 15 to which the front end is joined to the lower end. The side frame 15 includes a down frame portion 15a hanging downward from a lower end portion of the down tube 14, a lower frame portion 15b extending rearward from the lower end portion of the down frame portion 15a below the floor 10, and a lower frame. A rising frame portion 15c extending rearward from the rear end of the portion 15b and a seat rail portion 15d extending rearward from the upper end of the rising frame portion 15c are integrally formed, and a single pipe is formed by bending.

  A fuel tank 17 is supported between the lower frames 15b of the side frames 15 so as to be covered with the floor 10 from above. A storage box 18 is disposed between the rising frame portions 15c and the seat rail portions 15d in the side frames 15 so as to be supported by the rising frame portions 15c and the seat rail portions 15d. The riding seat 16 that covers the storage box 18 is supported by the storage box 18 that can be opened and closed.

  A bracket 19 is provided at a continuous portion of the lower frames 15b and rising frames 15c in the side frames 15. A front portion of the power unit P is supported on the bracket 19 via a link mechanism 20 so as to be swingable up and down, and a rear wheel WR disposed on the right side of the rear portion of the power unit P is pivotally supported on the rear portion of the power unit P and left A rear cushion unit 21 is provided between the rear end portion of the seat rail portion 15 d of the side frame 15 and the rear end portion of the power unit P.

  The power unit P includes an internal combustion engine E and a transmission M provided between the internal combustion engine E and the rear wheel WR. The engine body 23 of the internal combustion engine E has a crankcase 25 that rotatably supports a crankshaft 24 having an axis extending in the vehicle width direction, and a cylinder axis C that extends slightly upward. A cylinder body 26 coupled to the front portion, a cylinder head 27 coupled to the cylinder body 26, and a head cover 28 coupled to the cylinder head 27 from the opposite side of the cylinder body 26 are provided.

  The transmission device M is housed in a transmission case 29 that is connected to the crankcase 25 and extends rearward from the crankcase 25. An axle of the rear wheel WR is disposed at the rear end of the transmission case 29. 30 is pivotally supported.

  An upstream end of an exhaust pipe 32 extending to the right side of the rear wheel WR through the lower side of the engine body 23 is connected to a side surface facing the front lower side of the cylinder head 25. The exhaust muffler 33 is connected to the downstream end of the exhaust pipe 32 on the right side of the rear wheel WR.

  An intake device 35 is connected to the side facing the rear upper side of the cylinder head 25. The intake device 35 includes an air cleaner 36 disposed behind the engine main body 23 and above the transmission case 29, a connecting tube 37 (see FIG. 2) with an upstream end protruding into the air cleaner 36, and the connecting tube. 37, a throttle body 38 connected to the downstream end of the cylinder 37, and an intake pipe 39 connecting the throttle body 38 and the cylinder head 25. The intake pipe 39 is provided with a fuel injection valve (not shown). .

  Referring to FIGS. 2 to 4, the air cleaner 36 includes a cleaner case 45 formed by a case body 42 and a case cover 43 that are detachably coupled by a coupling surface 44 that extends in the vertical direction, and the case body 42 and The element support plate 46 sandwiched between the case covers 43 and the element support plate 46 so as to partition the cleaner case 45 into an unpurified chamber 48 and a purified chamber 49 in cooperation with the element support plate 46. And a cleaner element 47 provided at the rear of the engine body 23.

  The case main body 42 is formed in a bowl shape that opens to the opposite side of the rear wheel WR, is disposed above the transmission case 29, and is supported on the transmission case 29. At least the outer peripheral edge of the element support plate 46 integrally having an element support portion 46a formed in a rectangular tube shape so as to accommodate and support the element 47 is in a direction perpendicular to the coupling surface 44. The case main body 42 and a support wall portion 46b protruding toward the case cover 43 are integrally provided. In this embodiment, a cylindrical support wall portion 46b extending over the entire circumference of the element support plate 46 is the element. The support plate 46 is integrally provided on the outer peripheral edge. Further, grooves 50 and 51 are formed in the peripheral portions of the case main body 42 and the case cover 43 in an endless manner corresponding to both end portions of the support wall portion 46b. Thus, one end of the support wall 46b is inserted into the groove 50 with an endless seal member 52 made of an elastic material interposed between the case main body 42 and the other end of the support wall 46b. Screw members 54, 54... Inserted into the groove 51 with an endless seal member 53 made of an elastic material interposed between the case cover 43 and the case cover 43 disposed at a plurality of locations on the peripheral edge thereof. By fastening to the case main body 42, the element support plate 46 is sandwiched and fixed between the case main body 42 and the case cover 43 via the seal members 52 and 53.

  A through hole 55 is provided in the front portion of the case main body 42, and a connecting tube 37 having an upstream end opened to the purification chamber 49 is airtightly passed through the through hole 55 and supported by the case main body 42. The downstream end of the tube 37 is connected to the throttle body 38. A connecting pipe portion 56 that communicates with the purification chamber 49 is integrally provided at a front portion of the case main body 42, and a blow-by gas pipe 57 that guides blow-by gas led out from the head cover 28 of the engine main body 23 is connected to the connecting pipe. Connected to the unit 56.

  Referring also to FIG. 5, the upper inner wall of the case body 42 is sandwiched between the case body 42 and the case cover 43 so as to be spaced upward from the lower end wall of the case body 42. A first projecting wall 61 projecting toward the element support plate 46 side is projected so that its tip end portion 61a is in contact with or close to the element support plate 46. In the state where the element support plate 46 is sandwiched between the case main body 42 and the case cover 43, the second projecting wall 62 which projects from the first projecting wall 61 at least from the upper side and the lower side is superposed. Established.

  Thus, in this embodiment, the tip end portion 61 a of the first projecting wall 61 is in contact with the element support plate 46. Moreover, the first projecting wall 61 has a cross-sectional shape that surrounds the internal space 60 with a peripheral wall, and is formed such that an opening 63 that communicates with the internal space 60 is formed in a part of the peripheral wall. In this embodiment, the first protruding wall 61 is formed so as to have a U-shaped cross-sectional shape opened downward.

  In this embodiment, the second projecting wall 62 is superposed on the first projecting wall 61 from above, below and from the side, and superposed on the first projecting wall 61 from above. A wall 62a, a pair of lower wall portions 62b, 62b that overlap with the first projecting wall 61 from below, and a pair of connecting wall portions that connect the upper wall portion 62a and the lower wall portions 62b, 62b. 62c, 62c are integrally formed, and the first projecting wall 61 is covered by a portion excluding the opening 63 so that the internal space 60 in the first projecting wall 61 communicates with the purification chamber 49. The design dimensions of the first and second projecting walls 61 and 62 are such that the first projecting wall 61 and the first projecting wall 61 and the case cover 43 are sandwiched between the case body 42 and the case cover 43. The second protruding wall It is set such that a gap 64 occurs between 2.

  Further, the projection amount L1 of the second projecting wall 62 from the joint surface 44 of the case main body 42 and the case cover 43 is the joint of the support wall portion 46b formed integrally with the outer peripheral edge of the element support plate 46. The amount of protrusion L2 from the surface 44 toward the case main body 42 is set to be larger.

  Referring also to FIG. 6, an air inlet 66 having a louver 66 is formed in the front portion of the case cover 43, and an inlet chamber 67 communicating with the air inlet 65 is defined as the unpurified chamber 48. A wall portion 68 that is partitioned and formed between the case cover 43 and the element support plate 46 is supported between the element support plate 46 and the case cover 43, and communicates between the inlet chamber 67 and the unpurified chamber 48. A suction duct 69 penetrating through the wall 68 is supported by the wall 68.

  The suction duct 69 is inclined so as to gradually become higher from the inlet chamber 67 toward the unpurified chamber 48 in order to prevent rainwater or the like from entering the unpurified chamber 48 side from the inlet chamber 67. The wall portion 68 is formed integrally with the suction duct 69 so that the peripheral portion thereof is supported by the case cover 43 and the element support plate 46.

  A fitting groove 70 is formed on the peripheral edge of the wall 68 so as to be endlessly connected. On the inner wall of the case cover 43, a fitting protrusion 71 that fits into the fitting groove 70, A pair of sandwiching wall portions 72 and 73 sandwiching the peripheral edge portion of the wall portion 68 from both sides are integrally projected, and the element support plate 46 has a fitting projection portion 74 fitted into the fitting groove 70. A pair of sandwiching wall portions 75 and 76 that sandwich the peripheral portion of the wall 68 from both sides are integrally projected.

  Moreover, the wall 68 is supported by the element support plate 46 at a portion corresponding to the tip portion 61a of the first projecting wall 61 in contact with the element support plate 4 on the purification chamber 49 side, The fitting projection 74 and the sandwiching wall portions 75 and 76 that are integrally projected on the element support plate 46 correspond to the tip portion 61 a of the first projecting wall 61 in contact with the element support plate 46. It is arranged in the part to be That is, the front end portion 61 a of the first projecting wall 61 abuts on the element support plate 46 before and after the wall portion 68 whose periphery is supported by the case cover 43 and the element support plate 46.

  A cylindrical portion 79 having a support hole 78 is integrally provided at the end of the suction duct 69 on the unpurified chamber 48 side, and a support protrusion 80 fitted in the support hole 78 is provided in the case cover. It protrudes integrally to the inner wall of 43.

  Next, the operation of this embodiment will be described. The first projecting wall 61 projecting toward the element support plate 46 in a state sandwiched between the case body 42 and the case cover 43 is formed on the inner wall of the case body 42. The first protrusion protrudes from the element support plate 46 such that the end of the element support plate 46 is sandwiched between the case main body 42 and the case cover 43. Since the second projecting wall 62 that abuts or approaches the wall 61 from above or below at least is projected, the element support plate 46 is likely to fall off the case body 42 when the case cover 43 is attached to or detached from the case body 42. Even if the first and second projecting walls 61 and 62 come into contact with each other and are caught, the element support plate 46 is attached to the case body 4. Can be held on the side, it can be prevented from falling off of the element support plate 46 for maintenance. Further, in order to prevent the element support plate 46 from falling off, it is only necessary to have the first projecting wall 61 on the case body 42 side and the second projecting wall 62 on the element support plate 46 side. Even if only the second projecting walls 61 and 62 are used, the drop-off preventing effect can be obtained, and the number of parts can be reduced and the structure can be simplified. In addition, since the first and second projecting walls 61 and 62 are disposed in the cleaner case 45, they do not affect the appearance of the vehicle, and a good appearance can be obtained while eliminating the need for a cover or the like covering the cleaner case 45. Can be obtained.

  The second projecting wall 62 is superposed on the first projecting wall 61 from above, a pair of lower wall parts 62b and 62b superposed on the first projecting wall 61 from below, and an upper wall part 62a. Since the lower wall portions 62b and the pair of connecting wall portions 62c for connecting the lower wall portions 62b and 62b are integrally formed, the rigidity of the second protruding wall 62 can be ensured.

  In addition, at least the outer peripheral edge of the upper part of the element support plate 46, in this embodiment, the entire outer periphery of the element support plate 46, the case main body 42 and the case main body 42 and the case cover 43 in a direction perpendicular to the coupling surface 44 are provided. A support wall portion 46b protruding toward the case cover 43 is integrally formed so as to be sandwiched between the case main body 42 and the case cover 43, and the protrusion amount L1 from the coupling surface 44 of the second protrusion wall 62 is supported by Since the protrusion amount L2 from the coupling surface 44 of the wall portion 46b to the case main body 42 side is set, the element support plate 46 can be attached when the element support plate 46 is attached so as to be sandwiched between the case main body 42 and the case cover 43. Even if the supporting wall portion 46b is at least at the outer peripheral edge of the upper portion, the second protruding wall 62 can be easily seen from at least the upper outside. The element support plate 46 can be easily attached to a predetermined position while confirming the positions of the first projecting wall 61 and the second projecting wall 62 on the case body 42 side, and the work efficiency during maintenance is improved. To do.

  The first projecting wall 61 has a cross-sectional shape that surrounds the inner space 60 with a peripheral wall, and has an opening 63 that communicates with the inner space 60 in a part of the peripheral wall. However, since the inner space 60 in the first projecting wall 61 is communicated with the purification chamber 49 so as to cover the first projecting wall 61 at a portion excluding the opening 63, the case cover for the case main body 42 is formed. The element support plate 46 can be securely held by increasing the contact area of the first and second projecting walls 61 and 62 when the element support plate 46 is about to fall off the case body 42 when the 43 is attached or detached. The rigidity of the first and second projecting walls 61 and 62 can be increased. Moreover, since the internal space 60 in the first projecting wall 61 communicates with the purification chamber 49, the capacity of the purification chamber 49 can be secured by making the first projecting wall 61 a part of the purification chamber 49.

  The element support plate 46 is sandwiched between the case main body 42 and the case cover 43 via seal members 52 and 53 made of an elastic material. The design dimensions of the first and second projecting walls 61 and 62 are as follows. Since the gap 64 is formed between the first projecting wall 61 and the second projecting wall 62 in a state where the element support plate 46 is sandwiched between the case cover 43, the first and second projecting walls 61, 62 are set. Even if a dimensional error occurs between them, the dimensional error can be absorbed by the gap 64. Accordingly, in the structure in which the element support plate 46 is elastically supported by the cleaner case 45 via the seal members 52 and 53, the floating degree of freedom of the element support plate 46 can be secured, and sufficient sealing performance can be secured. .

  The wall 68 formed between the case cover 43 and the element support plate 46 by partitioning the inlet chamber 67 leading to the air introduction port 65 provided in the case cover 43 from the unpurified chamber 48 and the element support plate 46 and A suction duct 69 that is supported between the case covers 43 and communicates between the inlet chamber 67 and the unpurified chamber 48 and hermetically penetrates the wall 68 is supported by the wall 68, and an element support plate is provided on the purifier chamber 49 side. The wall 68 is supported by the element support plate 46 at a portion corresponding to the tip 61a of the first projecting wall 61 in contact with the wall 46, so that the wall 68 is moved from the purification chamber 49 side by the first projecting wall 61. It is possible to support, and it is difficult for a gap to be generated between the wall portion 68 and the element support plate 46, and the sealing performance is improved to prevent rainwater from entering the unpurified chamber 48 from the inlet chamber 67 and the wall portion 6. It is possible to prevent the backlash from occurring in.

  Further, since the first projecting wall 61 projects from the upper inner wall of the case body 42 so as to be spaced apart from the lower end wall of the case body 42, the element support plate 46 is particularly arranged on the case body 42 side during maintenance. When assembling, the first projecting wall 61 is easily visible from the outside, and the positions of the second projecting wall 62 on the element support plate 46 side and the first projecting wall 61 on the case body 42 side are mutually confirmed. The element support plate 46 can be easily attached to a predetermined position, and the work efficiency during maintenance is improved.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.

  For example, in the above-described embodiment, the first protruding wall 61 has a cross-sectional shape that opens downward, but may have a cross-sectional shape that opens to the side.

36 ... Air cleaner 42 ... Case body 43 ... Case cover 44 ... Connection surface 45 ... Cleaner case 46 ... Element support plate 46b ... Support wall 47 ... Cleaner element 48 ... Unpurified chamber 49 ... Purifying chambers 52, 53 ... Seal member 61 ... First protruding wall 61a ... First protruding wall tip 62 ... Second protruding wall 62a ... Upper wall 62b ... Lower wall 62c ... Connection wall 63 ... Opening 64 ... Gap 65 ... Air inlet 67 ... Inlet chamber 68 ... Wall 69 ..Suction duct E: Internal combustion engine L1: Projection amount L2 from the coupling surface of the second projection wall L2: Projection amount from the coupling surface of the support wall portion to the case body side

Claims (7)

  Between the case main body (42) and the case cover (43), and a cleaner case (45) in which the case main body (42) and the case cover (43) are connected to each other by a connecting surface (44) extending vertically. The cleaner case (45) is partitioned into an unpurified chamber (48) and a purified chamber (49) in cooperation with the element support plate (46) sandwiched between and the element support plate (46). In an air cleaner for a saddle-ride type internal combustion engine having a cleaner element (47) provided on the element support plate (46), the case main body (42) and the case cover ( 43) A first projecting wall (61) projecting toward the element support plate (46) in a state of being sandwiched between the first projecting wall (61a) and the tip (61a) thereof The element support plate (46) projects between the case main body (42) and the case cover (43). A saddle-ride type vehicle characterized in that a second projecting wall (62) that overlaps or comes into contact with or close to the first projecting wall (61) from at least above and below is projected from the first projecting wall (61). Air cleaner for internal combustion engines.   The second projecting wall (62) is superposed on the first projecting wall (61) from above the upper wall part (62a), and the first projecting wall (61) is superposed on the bottom wall part (62a) from below. The scissors according to claim 1, wherein the scissors are integrally formed with a connecting wall portion (62c) that connects the upper wall portion (62a) and the lower wall portion (62b). An air cleaner for an internal combustion engine for a riding type vehicle.   The case main body (42) and the case cover in a direction orthogonal to the coupling surface (44) of the case main body (42) and the case cover (43) on at least the outer peripheral edge of the element support plate (46). A support wall portion (46b) projecting toward the (43) side is integrally formed so as to be sandwiched between the case body (42) and the case cover (43), and the second projecting wall (62) The protruding amount (L1) from the coupling surface (44) is set larger than the protruding amount (L2) of the support wall portion (46b) from the coupling surface (44) to the case body (42). 3. An air cleaner for an internal combustion engine for a saddle-ride type vehicle according to claim 1 or 2.   The first projecting wall (61) has a cross-sectional shape that surrounds the internal space (60) with a peripheral wall, and has an opening (63) that communicates with the internal space (60) in a part of the peripheral wall. The first protruding wall (61) is formed at a portion excluding the opening (63) so that the second protruding wall (62) communicates the internal space (60) with the purification chamber (49). The air cleaner for a saddle-ride type vehicle internal combustion engine according to any one of claims 1 to 3, wherein the air cleaner is formed so as to cover the vehicle.   The element support plate (46) is sandwiched between the case body (42) and the case cover (43) via a seal member (52, 53) made of an elastic material, and the first and second projecting walls (61, 62) is designed so that the first projecting wall (61) and the second projecting dimension are in a state where the element support plate (46) is sandwiched between the case body (42) and the case cover (43). The air cleaner for a saddle-ride type internal combustion engine according to any one of claims 1 to 4, wherein a gap (64) is generated between the protruding walls (62).   An inlet chamber (67) leading to an air inlet (65) provided in the case cover (43) is partitioned from the unpurified chamber (48), and the case cover (43) and the element support plate (46) are separated. ) Is formed between the element support plate (46) and the case cover (43), and communicates between the inlet chamber (67) and the unpurified chamber (48). The suction duct (69) penetrating the wall (68) in an airtight manner is supported by the wall (68), and is in contact with the element support plate (46) on the purification chamber (49) side. The said wall part (68) is supported by the said element support plate (46) in the part corresponding to the front-end | tip part (61a) of a wall (61), The any one of Claims 1-5 characterized by the above-mentioned. Cleaner for internal combustion engine for saddle-ride type vehicles   The said 1st protrusion wall (61) is protrudingly provided by the inner wall of the said case main body (42) so that it may space apart from the lower end wall of the said case main body (42). An air cleaner for an internal combustion engine for a saddle-ride type vehicle according to any one of the above.

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