WO2014199930A1 - 鞍乗型車両用外装カバー - Google Patents
鞍乗型車両用外装カバー Download PDFInfo
- Publication number
- WO2014199930A1 WO2014199930A1 PCT/JP2014/065162 JP2014065162W WO2014199930A1 WO 2014199930 A1 WO2014199930 A1 WO 2014199930A1 JP 2014065162 W JP2014065162 W JP 2014065162W WO 2014199930 A1 WO2014199930 A1 WO 2014199930A1
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- Prior art keywords
- resin layer
- cover
- resin
- cross
- section
- Prior art date
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Images
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Definitions
- the present invention relates to a straddle-type vehicle exterior cover.
- the saddle riding type vehicle includes an exterior cover supported by the body frame.
- the rigidity of the saddle riding type vehicle is secured by the body frame, and the contribution to the rigidity of the exterior cover is small. Therefore, a typical straddle-type vehicle exterior cover is molded of ABS resin, and its outer surface is painted, and a sticker such as a vehicle name is pasted on the painted surface.
- the saddle riding type vehicle needs to be configured to bend and torsionally deformed in order to suppress damage to the exterior cover even if a rider or luggage that is in the vehicle makes slight contact with the exterior cover. is there.
- the saddle riding type vehicle is required to be lightweight. Therefore, the straddle-type vehicle exterior cover is made of resin in order to reduce the weight while ensuring toughness. However, it is necessary to increase rigidity in order to suppress excessive deformation due to contact.
- Patent Document 1 in a motorcycle including a rear side cover and an underside cover disposed below the rear side cover, a rearward extension portion facing the back surface of the rear side cover from the inside is provided on the underside cover.
- An integrally molded structure has been proposed.
- the rear side cover is secured by fastening a rearward extension portion integrally formed with the underside cover to a lower edge portion of the rear side cover.
- the straddle-type vehicle exterior cover structure described in Patent Document 1 is configured by forming a straddle-type vehicle exterior cover with a plurality of exterior covers, and overlapping and fastening a part of these exterior covers. It is based on the technical idea of reducing the weight while ensuring the toughness and rigidity of the resin-made straddle-type vehicle exterior cover. However, even with a technology based on such a technical idea, since a plurality of exterior covers are partially stacked, there is room for improvement in weight reduction even if they are made of resin.
- the present invention has been made in view of such points, and an object of the present invention is to provide a straddle-type vehicle exterior cover capable of further reducing the weight while ensuring toughness and rigidity.
- the present invention does not depend on the technical idea of securing toughness and rigidity by increasing the thickness, reinforcing with ribs, or overlapping a plurality of exterior covers and fastening them.
- the present invention configures an exterior cover so as to include an integrally laminated resin portion including a first resin layer and a second resin layer, and further, characteristics and shapes such as materials and strengths of the first resin layer and the second resin layer This is based on the technical idea of further reducing the weight while ensuring the toughness and rigidity of the saddle type vehicle exterior cover.
- a straddle-type vehicle exterior cover according to the present invention is used in a straddle-type vehicle in which a seat is supported on a body frame, and has an exterior surface and is a straddle-type vehicle exterior cover supported by the body frame.
- the first resin layer formed of a resin having crystallinity is thinner than the second resin layer formed of a resin having a Young's modulus smaller than that of the first resin layer.
- the first resin layer and the second resin layer are layered in a first cross section that is cut in a first direction that intersects the exterior surface, including an integrally laminated resin portion that is integrally formed by laminating a second resin layer.
- the integrally molded resin part formed integrally forms a cover body on which the exterior surface is formed and two first bent parts formed by bending at both ends of the cover body.
- the exterior cover in the first cross section that intersects the exterior surface, has a cover body in which an integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape is formed on the exterior surface. And two first bent portions at both ends of the cover body. Since the first resin layer has crystallinity and has a Young's modulus larger than that of the second resin layer, it is easier to increase the rigidity than the second resin layer. However, if the thickness of the first resin layer is too thick, it becomes difficult to ensure the toughness required for the exterior cover. Therefore, in the present invention, rigidity and toughness are ensured by making the first resin layer thinner than the second resin layer.
- the second resin layer has a Young's modulus smaller than that of the first resin layer, it is easy to ensure toughness. On the other hand, it is difficult to ensure the rigidity of the second resin layer. Therefore, the second resin layer secures rigidity and toughness by making it thicker than the first resin layer. Moreover, the rigidity required for the second resin layer can be lowered by integrally forming the second resin layer and the first resin layer and utilizing the property of easily increasing the rigidity of the first resin layer. Therefore, the thickness of the second resin layer can be reduced while ensuring rigidity and toughness.
- the exterior cover has a first resin layer in a state where the first resin layer formed of a crystalline resin is thinner than the second resin layer formed of a resin having a Young's modulus smaller than that of the first resin layer. And the second resin layer are laminated and integrally formed. Thereby, the exterior cover can be reduced in weight while ensuring rigidity and toughness.
- the exterior cover of the present invention is a cover main body in which an integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape is formed in the first cross section intersecting the exterior surface. And two first bent portions formed by bending at both ends of the cover main body, respectively.
- the exterior cover can be made more rigid with respect to bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion including the first resin layer that is easy to increase the rigidity.
- the cover body can have higher rigidity and ensure toughness as compared with the case where the first resin layer and the second resin layer are formed of an integrally laminated resin portion integrally formed in layers. it can. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- the straddle-type vehicle exterior cover according to the present invention has the integrated laminated resin portion in which the first resin layer and the second resin layer are integrally formed in layers in the first cross section at both ends of the cover body. Two first edge wall portions connected via the first bent portion are formed, and the first edge wall portions are directed from one end of the cover body to one of the first directions intersecting the exterior surface. Preferably it extends.
- the exterior cover has two first edge wall portions formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape in the first cross section intersecting the exterior surface.
- the cover body extends in one direction in the first direction from both ends of the cover body.
- the exterior cover can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion including the first resin layer that is easy to increase the rigidity.
- one of the two first edge walls extends in one of the first directions and the other of the two first edge walls extends in the other of the first directions
- toughness can be ensured. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- the straddle-type vehicle exterior cover according to the present invention includes: the cover body formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape in the first cross section; It is preferably formed in a curved shape that is swollen or dented with respect to a virtual straight line connecting the two first bent portions.
- the outer cover is formed by the cover body formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape. It is formed in a curved shape.
- the exterior cover can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion including the first resin layer that is easy to increase the rigidity.
- the rigidity of the exterior cover can be improved with respect to the direction perpendicular to the exterior surface, the bending direction, and the torsional direction, as compared with the case where the cover body is flat, and toughness can be ensured. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- the straddle-type vehicle exterior cover of the present invention has a width of the cover main body formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape in the first cross section.
- the cover body is preferably longer than either of the two first edge wall portions connected to both end portions of the cover body via the first bent portion.
- the width of the cover body formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape in the first cross section intersecting the exterior surface is the cover body. It is longer than the length of any of the two first edge wall portions connected to both ends of the first edge wall portion via the first bent portion.
- the cover body is formed in a curved shape in the first cross section, for example, the width of the cover body is made longer while maintaining the rigidity of the cover body as compared with the case where the cover body is flat. be able to.
- the exterior cover can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion including the first resin layer that is easy to increase the rigidity.
- the thickness of the cover body can be reduced while maintaining the width and rigidity of the cover body as compared with the case where the cover body is flat, and the toughness can be ensured. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- the width of the cover body in the first cross section is not the length of the cover body in the first cross section but the distance between both ends of the cover body when the cover body is curved in the first cross section.
- the straddle-type vehicle exterior cover according to the present invention includes, in the first cross section, both end portions of the cover main body formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape. It is preferable that the bending angles of the two first bent portions provided in the are different from each other.
- the degree of rigidity of the outer cover varies depending on the bending angle of the first bent portion.
- the exterior cover is provided at both ends of the cover body formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape in the first cross section intersecting the exterior surface.
- the bending angles of the two first bent portions are different from each other. Thereby, for example, it is easier to adjust the degree of rigidity of the exterior cover than in the case where the bending angles of the two first bent portions are the same. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- the straddle-type vehicle exterior cover according to the present invention has the integrated laminated resin portion in which the first resin layer and the second resin layer are integrally formed in layers in the first cross section at both ends of the cover body. It is preferable that two first edge wall portions connected via the first bent portion are formed, and the lengths of the two first edge wall portions are different from each other.
- the exterior cover has a length of two first edge wall portions formed by an integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape in the first cross section intersecting the exterior surface.
- the exterior cover can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion including the first resin layer that is easy to increase the rigidity. For example, it is easier to adjust the rigidity of the exterior cover than when the two first edge wall portions have the same length. Therefore, since the length of the first edge wall portion can be made as short as possible while ensuring the necessary rigidity, the exterior cover can be further reduced in weight.
- the straddle-type vehicle exterior cover according to the present invention is such that the first resin layer and the second resin layer are integrally formed in a layered manner in a second cross section orthogonal to the first cross section and intersecting the exterior surface.
- the integral laminated resin portion preferably forms the cover body and two second bent portions formed by bending at both ends of the cover body.
- the exterior cover has an integral laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape in the second section that is orthogonal to the first section and intersects the exterior surface. And two second bent portions at both ends of the cover body.
- the exterior cover can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion including the first resin layer that is easy to increase the rigidity. For example, it is easier to ensure the rigidity of the exterior cover than in the case where only the cover main body is formed of the integrally laminated resin portion in the second cross section. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- a protruding portion that is continuous with the cover main body via a bent portion is formed between both ends of the cover main body, and passes through the protruding portion and the exterior surface.
- the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer form form at least a part of the cover body and the protruding portion.
- the exterior cover in the cross section intersecting with the exterior surface, has an integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape between both end portions of the cover body. Protrusions are formed.
- the exterior cover can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion including the first resin layer that is easy to increase the rigidity.
- the rigidity of the exterior cover can be improved as compared with the case where no protrusion is provided, and toughness can be ensured. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- the protrusion part of this invention may protrude from the exterior surface of a cover main body, and may protrude from the surface on the opposite side to the exterior surface of a cover main body.
- the protruding portion formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape is formed in a cylindrical shape. It is preferable.
- This configuration makes it easy to use the protrusions to attach the exterior cover to the body frame.
- the longitudinal direction of the exterior cover is a direction orthogonal to the first cross section, and the first resin layer and the second resin layer are integrally formed in a layer shape. It is preferable that the first edge wall portion formed by the integrally laminated resin portion extends in the longitudinal direction of the exterior cover.
- the first edge wall portion formed by the integrally laminated resin portion in which the first resin layer and the second resin layer are integrally formed in a layer shape extends in a direction orthogonal to the first cross section.
- the exterior cover can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion including the first resin layer that is easy to increase the rigidity.
- the effect of weight reduction can be acquired, ensuring the rigidity and toughness of an exterior cover over the wide range of a longitudinal direction. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- the second resin layer integrally formed with the first resin layer in a layer shape is formed of a resin having crystallinity, and has a crystallinity higher than that of the first resin layer. Is preferably low.
- the Young's modulus can be adjusted by the crystallinity. Moreover, the said adjustment can be made still easier by making the 1st resin layer and 2nd resin layer which are integrally molded by layer form into the same kind of resin. Therefore, it is possible to further reduce the weight by thinning the first resin layer and the second resin layer while ensuring the rigidity and toughness required for the exterior cover.
- the first resin layer and the second resin layer which are integrally formed in a layer shape, are both formed of polypropylene or polyamide.
- the cost of the exterior cover can be reduced.
- the 1st resin layer and 2nd resin layer which are integrally molded by the layer form are formed with polyamide, the heat resistance of an exterior cover can be improved.
- FIG. 1 is a left side view of the motorcycle according to the embodiment.
- FIG. 2 is a front view of the exterior cover according to the first embodiment.
- FIG. 3 is a rear view of the exterior cover according to the first embodiment.
- FIG. 4 is a perspective view of the exterior cover according to the first embodiment.
- FIG. 5 is a cross-sectional view of the exterior cover according to the first embodiment taken along line VV in FIG. 6 is a cross-sectional view of the exterior cover according to the first embodiment taken along line VI-VI in FIG. 7 is a cross-sectional view of the exterior cover according to the first embodiment taken along line VII-VII in FIG.
- FIG. 8A is an enlarged view of a portion VIIIa in FIG.
- FIG. 8B is a view corresponding to FIG.
- FIG. 9A is a view for explaining an example of a manufacturing method of the exterior cover according to the first embodiment.
- Drawing 9B is a figure explaining an example of the manufacturing method of the exterior cover concerning a 1st embodiment.
- FIG. 10A is a diagram illustrating another example of the method for manufacturing the exterior cover according to the first embodiment.
- FIG. 10B is a view for explaining another example of the manufacturing method of the exterior cover according to the first embodiment.
- FIG. 11 is a cross-sectional view of a comparative example of the exterior cover.
- FIG. 12A is a cross-sectional view of the exterior cover according to the second embodiment.
- FIG. 12B is a cross-sectional view of the exterior cover according to the second embodiment.
- FIG. 13 is a cross-sectional view of the exterior cover according to the third embodiment.
- the saddle riding type vehicle according to the present embodiment is an off-road type motorcycle 1 called a motocrosser.
- the saddle riding type vehicle according to the present invention is not limited to the off-road type motorcycle 1.
- a saddle riding type vehicle means any vehicle on which an occupant rides.
- the saddle riding type vehicle of the present invention may be other types of motorcycles such as an on-road type, a scooter type, a moped type, etc., such as a tricycle, an all-terrain vehicle (ATV), a water bike, a snowmobile. Vehicles other than motorcycles, such as, may be sufficient.
- the upper, lower, front, rear, left, and right are respectively the upper, lower, front, rear, left, and right viewed from the occupant of the motorcycle 1 seated on the seat 9 described later.
- Shall mean.
- the motorcycle 1 may take a tilted posture while traveling, but here, the lower corresponds to the upper and lower in the vertical direction when the motorcycle 1 is stationary on a horizontal plane.
- Symbols U, D, F, Re, L, and R in the drawings represent up, down, front, back, left, and right, respectively.
- the motorcycle 1 includes a body frame 2, a front wheel 6, and a rear wheel 7.
- An engine 3, a handle 8, a seat 9, and a fuel tank 10 are supported on the body frame 2.
- the phrase “supported by the body frame” includes the case where it is directly supported by the body frame and the case where it is indirectly supported via other parts such as a bracket.
- the body frame 2 includes a pair of main frames 20, a down frame 21, a pair of lower frames 22, a head pipe 23, a pair of rear arms 24, and a seat rail 25.
- the head pipe 23 is disposed at the front portion of the motorcycle 1.
- the main frame 20 extends rearward and obliquely downward from the head pipe 23.
- the down frame 21 is disposed below the main frame 20 and extends rearward and obliquely downward from the head pipe 23.
- the lower frame 22 connects the lower end of the down frame 21 and the lower end of the main frame 20.
- the seat rail 25 extends rearward from the main frame 20.
- the engine 3 is disposed below the main frame 20 and behind the down frame 21.
- An air cleaner 30 is disposed behind the head pipe 23.
- a seat 9 supported by a seat rail 25 is disposed behind the air cleaner 30 and above the main frame 20.
- a fuel tank 10 is disposed below the front portion of the seat 9.
- a steering shaft (not shown) is inserted into the head pipe 23, and a handle 8 is connected to the upper portion of the steering shaft.
- a pair of front forks 40 are arranged alongside the steering shaft.
- a front wheel 6 is rotatably attached to the lower end of the front fork 40.
- a pivot shaft 20 a is provided at the rear of the main frame 20.
- the front end portion of the rear arm 24 is supported by the pivot shaft 20a.
- the rear arm 24 can swing up and down with respect to the main frame 20 by a pivot shaft 20a.
- the rear wheel 7 is rotatably attached to the rear end portion of the rear arm 24.
- the exterior cover 11 that covers a part of the body frame 2 is supported on the body frame 2.
- the exterior cover 11 includes a pair of front side covers 50, a pair of rear side covers 12, a front fender 13, and a rear fender 14.
- the front side cover 50 is disposed below the front portion of the seat 9 and is supported by the upper portions of the main frame 20 and the down frame 21.
- the rear side cover 12 is disposed below the rear portion of the seat 9 and is supported by the seat rail 25.
- the front fender 13 is disposed above the front wheel 6 and supported by the front fork 40.
- the rear fender 14 is disposed above the rear wheel 7 and supported by the seat rail 25.
- the front side cover 50 disposed on the left side of the body frame 2 and the front side cover 50 disposed on the right side of the body frame 2 are formed symmetrically.
- the side cover 50 is a front side cover 50 disposed on the left side of the vehicle body frame 2.
- FIG. 2 is a front view of the side cover 50 and corresponds to a view of the side cover 50 as viewed from the left side of the motorcycle 1.
- FIG. 3 is a rear view of the side cover 50 and corresponds to a view of the side cover 50 as viewed from the right side of the motorcycle 1.
- front and back mean the front and back of the side cover 50, respectively.
- FIG. 4 is a perspective view of the side cover 50 as viewed obliquely from the left rear. 5, 6, and 7 are cross-sectional views crossing the side cover 50 in the front-rear direction.
- the side cover 50 includes an upper cover portion 31 and a lower cover portion 32 positioned below the upper cover portion 31.
- the upper cover portion 31 is formed long and narrow at the front and rear.
- the lower cover part 32 is formed in a substantially triangular shape.
- the side cover 50 is an integral part, and the lower cover part 32 is connected to the front lower part of the upper cover part 31.
- the front and rear lengths of the side cover 50 (the front and rear lengths of the upper cover portion 31) are longer than the upper and lower lengths of the side cover 50.
- the side cover 50 has an exterior surface that is visible when the side cover 50 is attached to the motorcycle 1.
- the exterior surface is a surface facing leftward.
- the side cover 50 includes a cover main body 51 in which an exterior surface is formed, and an edge wall portion 52 that extends rightward from the outer edge of the cover main body 51 (in the direction from the exterior surface toward the back surface of the cover main body 51).
- the cover body 51 and the edge wall portion 52 are connected via a bent portion 54 formed by bending.
- the angle formed by the bent portion 54 is 90 degrees or more.
- the bent portion 54 is formed by an end portion of the cover main body 51 and at least a part of the edge wall portion 52. That is, the edge wall portion 52 is always formed at the location where the bent portion 54 is formed.
- the bent portion 54 and the edge wall portion 52 are formed on the entire circumference of the cover main body 51.
- the bent portion 54 is visually recognized as an outline of the side cover 50 when the motorcycle 1 is viewed from the left (when viewed from the exterior surface side).
- the cover main body 51 includes an upper cover main body 51U included in the upper cover portion 31 and a lower cover main body 51D included in the lower cover portion 32.
- the edge wall portion 52 includes an edge wall portion 52U included in the upper cover portion 31 and an edge wall portion 52D included in the lower cover portion 32.
- the bent portion 54 includes a bent portion 54U included in the upper cover portion 31 and a bent portion 54D included in the lower cover portion 32. That is, the upper cover portion 31 includes an upper cover main body 51U and an edge wall portion 52U connected to the upper cover main body 51U via a bent portion 54U, and the lower cover portion 32 includes a lower cover main body 51D and the lower cover main body 51U.
- the cover body 51D is provided with an edge wall portion 52D that is continuous with the bent portion 54D.
- a sharp corner 33 is formed by the front end of the upper cover body 51U and the front end of the lower cover body 51D.
- acute corner portions 34 and 35 are formed at the rear end of the upper cover main body 51U and the rear end of the lower cover main body 51D, respectively.
- the bent portion 54U of the upper cover portion 31 includes a bent portion 56a formed at the upper end portion of the upper cover main body 51U and a bent portion 56b formed at the lower end portion of the upper cover main body 51U. .
- the bent portion 54D of the lower cover portion 32 includes a bent portion 57a that extends upward and obliquely forward from the corner portion 35 of the lower cover body 51D, and a bent portion 57b that extends downward and obliquely forward from the corner portion 35 of the lower cover body 51D. It is comprised by the bending part 57c extended from the corner
- circular holes 41 ⁇ / b> A, 41 ⁇ / b> B, 41 ⁇ / b> C, 41 ⁇ / b> D that penetrate the cover body 51 in the thickness direction are formed in the side cover 50.
- four holes 41A, 41B, 41C, and 41D are formed in the side cover 50, but the number of holes is not limited at all. Further, the holes 41A, 41B, 41C, 41D may not be circular. Further, the holes 41A, 41B, 41C, 41D are not always necessary and may be omitted.
- the holes 41 ⁇ / b> A, 41 ⁇ / b> B, 41 ⁇ / b> C, 41 ⁇ / b> D are cylindrical protrusions that protrude rightward from the cover body 51 (in the direction from the exterior surface toward the back surface of the cover body 51).
- the inner wall surfaces of 53A, 53B, 53C, and 53D are formed. That is, the left and right lengths of the holes 41A, 41B, 41C, and 41D are larger than the thickness of the cover main body 51.
- the cover main body 51 and the protrusions 53A, 53B, 53C, and 53D are connected via bent portions 55A, 55B, 55C, and 55D formed by bending.
- the hole 41 ⁇ / b> A is formed at a boundary portion between the upper cover portion 31 and the lower cover portion 32.
- the holes 41B and 41C are formed in the lower cover part 32, and the hole 41D is formed in the upper cover part 31.
- the holes 41 ⁇ / b> A, 41 ⁇ / b> B, and 41 ⁇ / b> C are holes for attaching the side cover 50 to the vehicle body frame 2.
- the side cover 50 is fixed to the radiator 15 by a fastener 59 inserted through the holes 41A and 41B.
- the radiator 15 is fixed to the down frame 21.
- the side cover 50 is fixed to the bracket 20b of the main frame 20 by a fastener 59 inserted through the hole 41C.
- a reinforcing rib 42 is formed to protrude from the back surface of the lower cover body 51D.
- three ribs 42 extending radially from the outer peripheral surface of the protrusion 53C are provided.
- the number of ribs 42 is not particularly limited. Further, the rib 42 is not necessarily required and can be omitted.
- the rib 42 can be provided around the other protrusions 53A, 53B, or 53D, or may be provided at a place other than around the protrusions 53A, 53B, 53C, 53D.
- FIG. 5 is a cross-sectional view of the side cover 50 taken along the line VV in FIG. 2 passing through the hole 41A.
- the VV line passes through a portion where the upper cover portion 31 and the lower cover portion 32 are connected.
- the part 57c (54D) and the edge wall part 52D are arranged.
- the angle ⁇ 1 formed by the bent portion 56a of the upper cover portion 31 is about 90 degrees.
- the angle ⁇ 3 formed by the connecting portion between the upper cover body 51U and the protruding portion 53A is about 110 degrees.
- the angle ⁇ 3 formed by the connecting portion between the protruding portion 53A and the lower cover main body 51D is about 100 degrees.
- the angle ⁇ 2 formed by the bent portion 57c of the lower cover portion 32 is about 130 degrees.
- the bending angles of the bent portions 56a and 57c provided at the upper and lower ends of the cover body 51 are different from each other.
- the cover main body 51 is formed in a curved shape that swells to the left (front side) with respect to an imaginary line L5 that connects the bent portion 56a and the bent portion 57c.
- the width of the cover body 51 (the vertical length including the protruding portion 53 ⁇ / b> A) is longer than any of the edge wall portions 52 ⁇ / b> U and 52 ⁇ / b> D (the horizontal length).
- the lengths (lengths in the left-right direction) of the edge wall portions 52 ⁇ / b> U and 52 ⁇ / b> D connected to the upper and lower ends of the cover body 51 are different from each other.
- the cross section of FIG. 5 is a cross section cut along a bent VV line, but the cross section cut along a straight cutting line passing through the hole 41A is substantially the same as the above-described structure in the cross section of FIG. Become.
- Such a cross-section corresponds to the first cross-section or the second cross-section of the present invention, and the bent portions 54U and 54D formed at the upper and lower end portions of the cover main body 51 in such a cross-section are in the first cross-section of the present invention.
- This corresponds to two first bent portions formed at both end portions of the cover main body or two second bent portions formed at both end portions of the cover main body in the second cross section.
- the first cross section or the second cross section of the present invention may include the cross section of FIG.
- the side cover 50 has a cutting line other than the VV line in FIG. 2 and passes through the connected portion of the upper cover main body 51U and the lower cover main body 51D and intersects the exterior surface.
- the bending angles of the bent portions 54U and 54D provided at the upper and lower ends of the cover body 51 are different from each other, as in FIG.
- the cover main body 51 swells to the left (front side) with respect to an imaginary line connecting the bent portion 54U and the bent portion 54D connected to the upper and lower ends of the cover main body 51. It is formed in a curved shape.
- the width of the cover main body 51 is longer than the length of each of the edge wall portions 52U and 52D connected to the upper and lower ends of the cover main body 51. Further, in at least some of the plurality of cross sections, the lengths of the edge wall portions 52U and 52D connected to the upper and lower ends of the cover body 51 are different from each other.
- FIG. 6 is a cross-sectional view of the side cover 50 taken along the line VI-VI in FIG. 2 passing through the hole 41B.
- the VI-VI line does not pass through the connected portion of the upper cover portion 31 and the lower cover portion 32.
- the portion 57a (54D), the lower cover main body 51D, the bent portion 55B, the protruding portion 53B, the bent portion 55B, the lower cover main body 51D, the bent portion 57c (54D), and the edge wall portion 52D are arranged.
- the angle ⁇ 1 formed by the bent portion 56a of the upper cover portion 31 is about 90 degrees.
- the angle ⁇ 2 formed by the bent portion 56b of the upper cover portion 31 is about 100 degrees.
- the bending angles of the bent portions 56a and 56b provided at the upper and lower ends of the upper cover main body 51U are different from each other.
- the angle ⁇ 1 formed by the bent portion 57a of the lower cover portion 32 is about 90 degrees.
- the angle ⁇ 3 formed by the upper portion of the protruding portion 53B in the bent portion 55B appearing in the cross section of FIG. 6 is about 110 degrees.
- the angle ⁇ 2 formed by the bent portion 57c of the lower cover portion 32 is about 110 degrees.
- the bending angles of the bent portions 57a and 57c provided at the upper and lower ends of the lower cover main body 51D are different from each other.
- the lower cover main body 51D is formed in a curved shape that gently swells to the left (front side) with respect to an imaginary line (not shown) connecting the bent portion 57a and the bent portion 57c.
- the upper cover main body 51U is formed in a flat shape.
- the width (vertical length) of the upper cover main body 51U is greater than the length (horizontal length) of the two edge wall portions 52U located on the upper and lower sides of the upper cover main body 51U. Too long.
- the width (vertical length) of the lower cover main body 51D is greater than the length (horizontal length) of the two edge wall portions 52D located on the upper and lower sides of the lower cover main body 51D. Too long.
- the length (left-right direction length) of the two edge wall parts 52U connected to the upper and lower ends of the upper cover main body 51U is substantially the same.
- the lengths (the lengths in the left-right direction) of the two edge wall portions 52D connected to the upper and lower ends of the lower cover body 51D are substantially the same.
- the cross section of FIG. 6 is a cross section cut along a bent VI-VI line, but is a cross section cut along a straight cutting line that passes through a portion where the upper cover main body 51U and the lower cover main body 51D are not connected and passes through the hole 41B.
- the configuration is almost the same as the configuration described above in the cross section of FIG.
- Such a cross section corresponds to the first cross section or the second cross section of the present invention, and two bent portions 54U (on the upper and lower ends of the upper cover main body 51U (or the lower cover main body 51D) in such a cross section ( Or 54D) on the two first bent portions formed at both ends of the cover body in the first cross section of the present invention, or on the two second bent portions formed at both ends of the cover body in the second cross section.
- the first cross section or the second cross section of the present invention may include the cross section of FIG.
- FIG. 7 is a cross-sectional view of the side cover 50 cut along the line VII-VII in FIG. 2 passing through the hole 41C.
- the VII-VII line does not pass through the connected portion of the upper cover portion 31 and the lower cover portion 32.
- the edge wall portion 52U, the bent portion 56a (54U), the upper cover main body 51U, the bent portion 56b (54U), the edge wall portion 52U, the edge wall portion 52D, and the bent portion are sequentially arranged from top to bottom.
- the portion 57a (54D), the lower cover main body 51D, the bent portion 55C, the protruding portion 53C, the bent portion 55C, the lower cover main body 51D, the bent portion 57b (54D), and the edge wall portion 52D are arranged.
- the angle ⁇ 1 formed by the bent portion 56a of the upper cover portion 31 is about 110 degrees.
- the angle ⁇ 2 formed by the bent portion 56b of the upper cover portion 31 is about 90 degrees.
- the bending angles of the bent portions 56a and 56b provided at the upper and lower ends of the upper cover main body 51U are different from each other.
- the angle ⁇ 1 formed by the bent portion 57a of the lower cover portion 32 is about 100 degrees.
- the angle ⁇ 3 formed by the upper portion of the protruding portion 53C in the bent portion 55C appearing in the cross section of FIG. 7 is about 90 degrees.
- the angle ⁇ 2 formed by the bent portion 57b of the lower cover portion 32 is about 150 degrees.
- the bending angles of the bent portions 57a and 57b provided at the upper and lower ends of the lower cover main body 51D are different from each other.
- the upper cover main body 51U is formed in a curved shape that gently swells to the left (front side) with respect to an imaginary line (not shown) connecting the bent portion 56a and the bent portion 56b.
- the lower cover main body 51D is formed in a curved shape that gently swells to the left (front side) with respect to an imaginary line (not shown) connecting the bent portion 57a and the bent portion 57b.
- the width (vertical length) of the upper cover main body 51U is greater than the length (horizontal length) of the two edge wall portions 52U located on both the upper and lower sides of the upper cover main body 51U. Too long.
- the width (vertical length) of the lower cover main body 51D is greater than the length (horizontal length) of the two edge wall portions 52D located on the upper and lower sides of the lower cover main body 51D. Too long.
- the cross section in FIG. 7 corresponds to the first cross section or the second cross section of the present invention.
- the bent portions 56a and 56b formed at the upper and lower end portions of the upper cover main body 51U in the cross section of FIG. 7 are the two first bent portions formed at the both end portions of the cover main body in the first cross section of the present invention, or This corresponds to two second bent portions formed at both ends of the cover body in the second cross section.
- the bent portions 57a and 57b formed at the upper and lower end portions of the lower cover main body 51D in the cross section of FIG. 7 are the two first bent portions formed at both end portions of the cover main body in the first cross section of the present invention, or This corresponds to two second bent portions formed at both ends of the cover body in the second cross section.
- the side cover 50 is cut along lines VI-VI and VII-VII in FIG. 2 and passes through the connected portion of the upper cover body 51U and the lower cover body 51D.
- the two bent portions 54U or the two cover portions 54U (or the lower cover main body 51D) provided at both ends of the upper cover main body 51U (or the lower cover main body 51D) as in FIGS. 54D) have different bending angles.
- the upper cover main body 51U (or the lower cover main body 51D) is left to the imaginary line connecting the two bent portions 54U (or 54D) at both ends thereof. It is formed in a curved shape that swells in the direction (front side). Further, in at least a part of the plurality of cross sections, the width of the upper cover main body 51U (or the lower cover main body 51D) is larger than the length of the two edge wall portions 52U (or 52D) connected to both ends thereof. Is also getting longer.
- the lengths of the two edge wall portions 52U (or 52D) connected to both ends of the upper cover main body 51U (or the lower cover main body 51D) are different from each other.
- An example of a section cut along a cutting line other than the VI-VI line and the VII-VII line that does not pass through the connected portion of the upper cover body 51U and the lower cover body 51D is, for example, VII-
- two bent portions 56a are formed at both ends of the upper cover main body 51U.
- the side cover 50 is formed of a first resin layer 62 and a second resin layer 61.
- the side cover 50 is an integral part, but at least a part of the side cover 50 is an integrally laminated resin portion 63 that is integrally formed with the second resin layer 61 and the first resin layer 62 laminated. Is formed.
- the first resin layer 62 is disposed on the left side (front side) from the second resin layer 61.
- the first resin layer 62 forms the exterior surface of the side cover 50.
- FIG. 8A is an enlarged view of a portion VIIIa in FIG.
- the edge wall portion 52U connected to the upper end portion of the upper cover main body via the bent portion 56a is formed with a part of the bent portion 56a side over the entire region by the integral laminated resin portion 63, and the remaining portion
- the portion (52Ua in FIG. 8A) is formed of only the second resin layer 61. More specifically, a step 61s is formed in the second resin layer 61 of the edge wall portion 52U, and the first resin layer 62 is fitted into the step 61s.
- the vertical length of the edge 62e of the first resin layer 62 and the vertical length of the step 61s are the same.
- the 2nd resin layer 61 and the 1st resin layer 62 are adjacent to the same surface.
- the portion 52Ua formed only of the second resin layer 61 is not necessarily required in the edge wall portion 52U connected to the bent portion 56a.
- the entire edge wall portion 52 ⁇ / b> U may be formed of the integrally laminated resin portion 63 in a certain cross section.
- the edge wall portion 52 ⁇ / b> U connected to the lower end portion of the upper cover main body 51 ⁇ / b> U via the bent portion 56 b has a part on the bent portion 56 b side over the entire area thereof, and the integral laminated resin portion 63. The remaining portion is formed only by the second resin layer 61. Note that, in at least one cross section intersecting with the exterior surface, the edge wall portion 52U connected to the bent portion 56b may be all formed of the integrally laminated resin portion 63.
- the edge wall portion 52D connected via the lower cover main body 51D and the bent portion 57a is partly formed of the integral laminated resin portion 63 over the entire region. The remaining part is formed only by the second resin layer 61. Note that, in at least one cross section intersecting with the exterior surface, the edge wall portion 52 ⁇ / b> D connected to the bent portion 57 a may be entirely formed of the integral laminated resin portion 63.
- all the edge wall portions 52 ⁇ / b> D connected through the lower cover main body 51 ⁇ / b> D and the bent portion 57 c are formed of the integral laminated resin portion 63.
- the edge wall portion 52D connected to the lower cover main body 51D via the bent portion 57c or the bent portion 57b has a part on the bent portion 57c or the bent portion 57b side part of the integral laminated resin portion 63. The remaining portion is formed only by the second resin layer 61.
- the integrated laminated resin portion 63 is formed at the cover main body 51 and at both ends of the cover main body 51 in a cross section cut by a cutting line passing through the connecting portion of the upper cover portion 31 and the lower cover portion 32 and intersecting the exterior surface.
- the bent portions 56a and 57c and at least a part of the edge wall portions 52U and 52D connected to both end portions of the cover main body 51 are formed via the bent portions 56a and 57c.
- the integrated laminated resin portion 63 includes the upper cover main body 51U, two bent portions 54U formed at both ends of the upper cover main body 51U, and the bent portion 54U. At least a part of two edge wall portions 52U connected to both end portions of the cover main body 51U is formed.
- the integral laminated resin portion 63 includes a lower cover main body 51D, two bent portions 54D formed at both ends of the lower cover main body 51D, and the lower cover main body via the bent portions 54D. At least a part of two edge wall portions 52D connected to both end portions of 51D is formed.
- the integral laminated resin portion 63 forms the entire bent portion 55A and at least a part of the protruding portion 53A on the bent portion 55A side.
- the integral laminated resin portion 63 forms the entire bent portion 55A and at least a part of the protruding portion 53A on the bent portion 55A side.
- the integral laminated resin portion 63 forms the entire bent portion 55B and at least a part of the protruding portion 53B on the bent portion 55B side. Further, as shown in FIG. 7, in any cross section passing through the protruding portion 53C, the integral laminated resin portion 63 forms the entire bent portion 55C and at least a part of the protruding portion 53C on the bent portion 55C side. In any cross section passing through the protrusion 53D, the integral laminated resin portion 63 forms the entire bent portion 55D and at least a part of the protrusion 53D on the bent portion 55D side.
- the first resin layer 62 is a resin layer having a Young's modulus higher than that of the second resin layer 61 and a smaller thickness.
- the value of the Young's modulus of the first resin layer 62 and the second resin layer 61 is not particularly limited.
- the Young's modulus of the first resin layer 62 is 2000 to 3000 MPa
- the Young's modulus of the second resin layer 61 is 1000 to 1500 MPa. It is.
- the thicknesses of the first resin layer 62 and the second resin layer 61 are not particularly limited.
- the thickness of the second resin layer 61 is 1.8 to 3 mm
- the thickness of the first resin layer 62 is 0.2 to 0.4 mm. It is.
- the thickness ratio between the first resin layer 62 and the second resin layer 61 is not particularly limited.
- the thickness of the first resin layer 62 is 0.05 to 0.2 times the thickness of the second resin layer 61. . 5 to 8, the thickness of the first resin layer 62 is exaggerated from the actual one.
- the first resin layer 62 is made of a crystalline resin.
- the first resin layer 62 is preferably a resin layer having a crystallinity greater than that of the second resin layer 61.
- the second resin layer 61 is preferably a crystalline resin in terms of ease of integral molding, but may be an amorphous resin.
- the first resin layer 62 preferably has a higher yield point than the second resin layer 61. Further, the first resin layer 62 preferably has a larger breaking point than the second resin layer 61.
- the density of the first resin layer 62 is preferably substantially the same as or lower than the density of the second resin layer 61, but may be slightly higher than the density of the second resin layer 61. When the first resin layer 62 and the second resin layer 61 are formed of different resin materials, the crystallinity of the first resin layer 62 may be lower than the crystallinity of the second resin layer 61.
- the “crystalline resin” refers to a resin having at least a part of a crystal part.
- polyethylene polypropylene (PP), polyamide (nylon) (PA), polycarbonate (PC), polyacetal ( Polyoxymethylene) (POM), polyphenylene sulfide (PPS), vinylidene chloride resin (PVDC), polyethylene terephthalate (PETP), fluorine resin (tetrafluoroethylene) (PTFE), and the like.
- amorphous resin refers to a resin consisting of only amorphous parts, such as vinyl chloride resin (PVC), vinyl acetate resin (PVAC), polyvinyl alcohol (PVAL), polyvinyl.
- Examples include butyral (PVB), polystyrene (PS), ABS resin (ABS), polymethyl methacrylate (methacrylic resin) (PMMA), polyphenylene oxide (noryl) (PPO), and polyurethane (PUR).
- PVB polyvinyral
- PS polystyrene
- ABS resin ABS resin
- PMMA polymethyl methacrylate
- PMMA polyphenylene oxide
- PPO polyurethane
- PUR polyurethane
- first resin layer 62 and the second resin layer 61 Various resin materials can be used as the material of the first resin layer 62 and the second resin layer 61, but an olefin-based or polyamide-based resin can be preferably used from the viewpoint of weight reduction and cost reduction. .
- materials for the first resin layer 62 and the second resin layer 61 for example, polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), nylon, or the like may be used.
- the first resin layer 62 and the second resin layer 61 are preferably formed of the same kind of resin material, but may be formed of different resin materials.
- the crystallinity of the first resin layer 62 is made higher than the crystallinity of the second resin layer 61.
- the Young's modulus of the first resin layer 62 becomes higher than the Young's modulus of the second resin layer 61.
- the density of the first resin layer 62 in this case is almost the same although it is slightly larger than the density of the second resin layer 61.
- the crystallinity of the first resin layer 62 is set to, for example, 65.1 to 75.5%, and the second resin layer 61 The crystallinity is 60.5%, for example.
- the Young's modulus of the first resin layer 62 is 2800 MPa, for example, and the Young's modulus of the second resin layer 61 is 1652 MPa, for example.
- the density of the first resin layer 62 in this case is almost the same although it is slightly larger than the density of the second resin layer 61.
- the method of manufacturing the side cover 50 having at least a part of the integrally laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in a layer shape is not particularly limited.
- injection molding can be used.
- FIG. 9A by injecting the material 61M of the second resin layer 61 and the material 62M of the first resin layer 62 in layers from the first gate 71 and the second gate 72 of the mold 70, respectively.
- the side cover 50 having the integrally laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in layers can be manufactured.
- the first resin layer 62 formed in a sheet shape is placed in the mold 70 in advance, and the material 61M of the second resin layer 61 is injected from the gate 71, as shown in FIG. 10B.
- the side cover 50 having the integrally laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in a layer shape can be manufactured.
- a resin film having a higher Young's modulus than that of the second resin layer 61 may be used as the first resin layer 62 (a stretched film having a higher degree of crystallinity due to stretching is preferably used) or a resin.
- the Young's modulus of the first resin layer 62 may be made higher than that of the second resin layer 61 by applying heat treatment or the like to the film in advance to increase the crystallinity thereof.
- a nucleating agent may be used.
- the side cover 50 (exterior cover) of the present embodiment described above has the following characteristics.
- the integrally laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in a layer shape has the exterior surface formed.
- a cover body (cover body 51, upper cover body 51U, or lower cover body 51D) and two bent portions 54 (first bent portions) at both ends of the cover body are formed. Since the first resin layer 62 has crystallinity and has a Young's modulus greater than that of the second resin layer 61, it is easier to increase the rigidity than the second resin layer 61.
- the thickness of the first resin layer 62 is too thick, it becomes difficult to ensure the toughness required for the side cover 50. Therefore, in the present embodiment, rigidity and toughness are ensured by making the first resin layer 62 thinner than the second resin layer 61. Further, since the second resin layer 61 has a Young's modulus smaller than that of the first resin layer 62, it is easy to ensure toughness. On the other hand, it is difficult to ensure the rigidity of the second resin layer 61. Therefore, the second resin layer 61 is thicker than the first resin layer 62 to ensure rigidity and toughness.
- the rigidity required of the second resin layer 61 can be lowered by integrally forming the second resin layer 61 and the first resin layer 62 and utilizing the property of easily increasing the rigidity of the first resin layer 62. . Therefore, the thickness of the second resin layer 61 can be reduced while ensuring rigidity and toughness.
- the side cover 50 is in a state where the first resin layer 62 formed of a crystalline resin is thinner than the second resin layer 61 formed of a resin having a Young's modulus smaller than that of the first resin layer 62.
- the first resin layer 62 and the second resin layer 61 are laminated to include an integrally laminated resin portion 63 that is integrally formed. Thereby, the side cover 50 can be reduced in weight while ensuring rigidity and toughness.
- the side cover 50 of the present embodiment has an integrated laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in a cross section (first cross section) intersecting the exterior surface.
- a cover main body (cover main body 51, upper cover main body 51U, or lower cover main body 51D) in which an exterior surface is formed, and two bent portions 54 (first bent portions) formed by bending at both ends of the cover main body, respectively. Is forming. Therefore, the side cover 50 can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion 63 including the first resin layer 62 that is easy to increase the rigidity.
- the cover body can be made more rigid as compared to the case where the first resin layer 62 and the second resin layer 61 are formed by the integrally laminated resin portion 63 integrally formed in a layer shape, while the toughness Can also be secured. Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- the side cover 50 is formed only by the first resin layer 62 having a high Young's modulus, the rigidity becomes too high and the brittleness becomes brittle, so that the toughness of the entire side cover 50 is lowered and cracking due to falling easily occurs.
- the side cover 50 of the present embodiment includes the second resin layer 61 having a small Young's modulus, a reduction in the toughness of the entire cover is suppressed. Therefore, even if the rigidity is increased, the occurrence of cracks is suppressed, so that the function of the exterior cover is not impaired. Further, the side cover 50 of the present embodiment can be reduced in weight while ensuring the rigidity of the side cover 50 as compared with the case where the side cover 50 is formed only by the second resin layer 63.
- the side cover 50 has two integral laminated resin portions 63 in which the first resin layer 62 and the second resin layer 61 are integrally molded in a cross section (first cross section) intersecting the exterior surface.
- Two edge wall portions 52 extend in the same direction from both ends of the cover main body (the cover main body 51, the upper cover main body 51U, or the lower cover main body 51D).
- the side cover 50 can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion 63 including the first resin layer 62 that is easy to increase the rigidity.
- the rigidity of the side cover 50 can be improved with respect to the vertical direction of the exterior surface, the bending direction, and the twisting direction, and the toughness can be ensured. . Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- a cover main body formed by an integrally laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in layers.
- the upper cover main body 51U or the lower cover main body 51D is formed in a curved shape.
- the side cover 50 can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion 63 including the first resin layer 62 that is easy to increase the rigidity.
- the rigidity of the side cover 50 can be improved with respect to the exterior surface vertical direction, the bending direction, and the torsion direction, while toughness can be ensured. Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- the side cover 50 of the present embodiment has a cover body formed by an integrally laminated resin portion 63 in which a first resin layer 62 and a second resin layer 61 are integrally formed in a cross section (first cross section) intersecting the exterior surface.
- Two edge wall portions 52 in which the width of the cover main body 51, the upper cover main body 51U, or the lower cover main body 51D is connected to both ends of the cover main body via the bent portions 54 (first bent portions). Part) is longer than any length.
- the cover main body is formed in a curved shape, for example, the width of the cover main body can be made longer while maintaining the rigidity of the cover main body as compared with the case where the cover main body is flat.
- the side cover 50 can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion 63 including the first resin layer 62 that is easy to increase the rigidity.
- the thickness of the cover body can be reduced while maintaining the width and rigidity of the cover body (the cover body 51, the upper cover body 51U, or the lower cover body 51D) as compared to the case where the cover body is flat, and the toughness is also improved. Can be secured. Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- the degree of rigidity of the side cover 50 varies depending on the bending angle of the bent portion 54.
- the side cover 50 is a cover formed by an integrally laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in a cross section (first cross section) intersecting the exterior surface.
- the bending angles of the two bent portions 54 (first bent portions) provided at both ends of the main body (the cover main body 51, the upper cover main body 51U, or the lower cover main body 51D) are different from each other. Therefore, for example, it is easier to adjust the degree of rigidity of the side cover 50 than in the case where the bending angles of the two bent portions 54 (first bent portions) are the same. Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- the side cover 50 of the present embodiment has two cross-sections (first cross-section) intersecting with the exterior surface, which are formed by two integrally laminated resin portions 63 formed by integrally forming the first resin layer 62 and the second resin layer 61 in layers.
- the lengths of the edge wall portions 52 (first edge wall portions) are different from each other.
- the side cover 50 can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion 63 including the first resin layer 62 that is easy to increase the rigidity.
- the side cover 50 it is easier to adjust the rigidity of the side cover 50 than when the lengths of the two edge wall portions 52 (first edge wall portions) are the same. Therefore, since the length of the edge wall portion 52 (first edge wall portion) can be made as short as possible while ensuring the necessary rigidity, the side cover 50 can be further reduced in weight.
- the integrally laminated resin portion 63 in at least one cross section that intersects the exterior surface, includes a cover main body (the cover main body 51, the upper cover main body 51U, or the lower cover main body 51D) and the cover main body.
- the integral laminated resin portion 63 also has a cover main body (cover main body 51) in a cross section (second cross section) orthogonal to the cross section and intersecting the exterior surface.
- the upper cover main body 51U or the lower cover main body 51D) and two bent portions 54 at both ends of the cover main body are formed.
- the side cover 50 can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion 63 including the first resin layer 62 that is easy to increase the rigidity. For example, in the second cross section, it is easier to ensure the rigidity of the side cover 50 than in the case where only the cover body is formed of the integrally laminated resin portion 63. Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- an integrated laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in a cross-section (first cross section) intersecting with the exterior surface has a cover body ( A protrusion (53A, 53B, 53C or 53D) provided between both ends of the cover main body 51, the upper cover main body 51U, or the lower cover main body 51D) is formed.
- the side cover 50 can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion 63 including the first resin layer 62 that is easy to increase the rigidity.
- the rigidity of the side cover 50 can be further improved as compared to the case where no protrusion is provided, and toughness can be ensured. Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- the edge wall portion 52 formed by the integrally laminated resin portion 63 in which the first resin layer 62 and the second resin layer 61 are integrally formed in a layer shape extends in the longitudinal direction of the side cover 50.
- the side cover 50 can be made more rigid against bending deformation and torsional deformation by devising the shape of the integrally laminated resin portion 63 including the first resin layer 62 that is easy to increase the rigidity.
- the effect of weight reduction can be obtained while ensuring the rigidity and toughness of the side cover 50 over a wide range in the longitudinal direction. Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- the second resin layer 61 is preferably formed of a crystalline resin and has a lower crystallinity than the first resin layer 62. Young's modulus can be adjusted by the degree of crystallinity. The adjustment can be further facilitated by making the first resin layer 62 and the second resin layer 61 integrally formed in layers into the same kind of resin. Therefore, it is possible to further reduce the weight by thinning the first resin layer 62 and the second resin layer 61 while ensuring the rigidity and toughness required for the side cover 50.
- first resin layer 62 and the second resin layer 61 that are integrally formed in a layer shape are both formed of polypropylene, the cost of the side cover 50 can be suppressed.
- both the first resin layer 62 and the second resin layer 61 that are integrally formed in layers are made of polyamide, the heat resistance of the side cover 50 can be improved.
- the cover body 51 and the bent portion 54 include the second resin layer 61 and the first resin layer 62 having a Young's modulus higher than that of the second resin layer 61 and a smaller thickness. It is integrally formed in a laminated state. Since the first resin layer 62 is formed of a crystalline resin and has a higher Young's modulus than the second resin layer 61, the first resin layer 62 has a thickness required to exhibit the same rigidity. Thinner than layer 61.
- the first resin layer 62 and the second resin layer 61 are both made of polypropylene and have the same specific gravity.
- the rigidity can be increased while suppressing an increase in weight. In other words, it is possible to reduce the weight while ensuring the rigidity.
- the first resin layer is thinner than the second resin layer in order to ensure the same rigidity, even if the specific gravity of the first resin layer is larger than the specific gravity of the second resin layer, the thickness Therefore, the first resin layer may be smaller in weight than the second resin layer in order to exhibit the same rigidity. Therefore, the specific gravity of the first resin layer is not necessarily less than or equal to the specific gravity of the second resin layer.
- the first resin layer 62 has a higher Young's modulus than the second resin layer 61, but the second resin layer 61 does not require a treatment for increasing the Young's modulus and is therefore less expensive than the first resin layer 62. Can be formed. If the ratio of the first resin layer 62 is increased, it can be expected that the rigidity of the side cover 50 is further increased, but there is a risk of increasing the cost. However, in the side cover 50 according to the present embodiment, the second resin layer 61 is thicker than the first resin layer 62. Therefore, rigidity can be improved while avoiding a significant cost increase.
- the side cover 50 includes an integrally laminated resin portion 63 composed of the first resin layer 62 and the second resin layer 61, but the first resin layer 62 and the second resin layer 61 are integrally molded. They will not peel off. Therefore, the rigidity of the side cover 50 does not decrease due to the provision of the integrally laminated resin portion 63.
- the cover main body 951 of the side cover 950 is provided with the first resin layer 962 and the first resin layer 962 having the same configuration (material and thickness) as the first resin layer 62 and the second resin layer 61 of the present embodiment. It is also conceivable that the two resin layers 961 are laminated and integrally formed, and the edge wall portion 952 of the side cover 950 is formed only by the second resin layer 961.
- the cover main body the cover main body 51, the upper cover main body 51U, or the lower cover main body 51D
- the bent portions 54 and the edge wall portions 52 on both sides thereof are arranged in the first section.
- the resin layer 62 and the second resin layer 61 are formed of an integrally laminated resin portion 63. Since the longitudinal direction of the side cover 50 is the front-rear direction, during running, left and right bending deformation, that is, bending deformation around the vertical line V (see symbol A in FIG. 4) and torsional deformation around the horizontal axis H extending in the front-rear direction (see FIG. 4). Therefore, in order to suppress such deformation, it is effective to increase the cross-sectional second moment of the cross section.
- the cross section of the cover body 51 alone is substantially flat, whereas the cover body (the cover body 51, the upper cover body 51U, or the lower cover body 51D) and the bent portions on both sides of the cover body 51 are cross sections that intersect the exterior surface.
- the part which consists of 54 and the edge wall part 52 is formed in substantially C shape. For this reason, this section has a larger second moment of section than the cover body.
- the side cover 50 is not only provided in the structural aspect of including the integrated laminated resin portion 63 including the first resin layer 62 and the second resin layer 61 but also with the integrated laminated resin portion 63. By further improving the shape of the cross-sectional moment of the cross-section of the steel sheet, it became possible to increase the rigidity while suppressing an increase in weight. According to the side cover 50 according to the present embodiment, the above effects are organically combined, so that it is possible to achieve both ensuring of rigidity and weight reduction at a high level.
- the angle formed by the bent portion 54 is not particularly limited, but is preferably 150 degrees or less, and more preferably 135 degrees or less, from the viewpoint of enhancing the suitability and rigidity of the shape of the side cover 50 for the saddle riding type vehicle.
- the cover body 51 When the side cover 50 is supported by the vehicle body frame 2, the cover body 51 is located on the side of the vehicle body frame 2, and is located on both upper and lower sides of the cover body (the cover body 51, the upper cover body 51U, or the lower cover body 51D).
- a bent portion 54 and an edge wall portion 52 are disposed. With such a configuration, it is possible to suitably suppress left and right bending deformation and torsional deformation around the horizontal axis during traveling.
- the bent portion 54 and the edge wall portion 52 are formed over the entire circumference of the cover main body 51. Therefore, securing of rigidity and weight reduction can be achieved at a higher level.
- the cover body 51 may be formed in a straight flat plate shape, but in the present embodiment, the cover body 51 swells to the front side. Thereby, the bending deformation and the twisting deformation of the cover main body 51 are further suppressed, and the rigidity of the cover main body 51 can be further ensured.
- the first resin layer 62 is disposed on the front side of the second resin layer 61 and forms the exterior surface of the side cover 50.
- the first resin layer 62 is disposed on the side where the edge wall portion 52 is disposed with respect to the cover body 51 with respect to the second resin layer 61.
- the position of the first resin layer 62 with respect to the second resin layer 61 is not particularly limited.
- the first resin layer 62 may be disposed on the back side of the second resin layer 61.
- the first resin layer 62 may be disposed on the side where the edge wall portion 52 is disposed with respect to the cover body 51 with respect to the second resin layer 61.
- the first resin layer 62 may be disposed on both the front side and the back side of the second resin layer 61.
- the first resin layer 62 and the second resin layer 61 are both single layers.
- the second resin layer 61 and / or the first resin layer 62 may have a multilayer structure.
- the second resin layer 61 may be a single layer, and the first resin layer 62 may have a multilayer structure.
- the first resin layer 62 includes a binder layer 62a that enhances adhesion to the second resin layer 61, a colored layer 62b that is laminated on the binder layer 62a, and a colored layer 62b. And a transparent layer 62c laminated on the substrate.
- the colored layer 62b has characters, figures, colors, patterns, or combinations thereof, and has a function of decorating the side cover 50.
- the color of the colored layer 62b includes white.
- the transparent layer 62c is transparent and has a function of protecting the colored layer 62b.
- the colored layer 62b is visually recognized through the transparent layer 62c.
- the side cover 50 according to the present embodiment can be manufactured as follows, for example. First, printing is performed using ink on the surface of a transparent resin film (for example, polypropylene film) constituting the transparent layer 62c, and the colored layer 62b is formed on the transparent layer 62c with this ink. Next, a binder is applied to the surface of the colored layer 62b, and the binder layer 62a is formed on the colored layer 62b. Thereby, a sheet-like first resin layer 62 having a three-layer structure is obtained. Next, the sheet-like first resin layer 62 is placed in the mold such that the transparent layer 62c is in contact with the inner wall surface of the mold. Then, the material of the second resin layer 61 is injected into the mold.
- a transparent resin film for example, polypropylene film
- the side cover 50 in which the first resin layer 62 having a multilayer structure is integrally formed with the second resin layer 61 in a laminated state is obtained.
- the side cover 50 according to the present embodiment can be manufactured, for example, by film insert molding.
- the manufacturing method of the side cover 50 according to the present embodiment is not limited to film insert molding, and other manufacturing methods can also be used.
- holes 41A, 41B, and 41C into which fasteners 59 such as bolts are inserted were formed.
- the holes 41 ⁇ / b> A, 41 ⁇ / b> B, and 41 ⁇ / b> C were attachment holes used for attaching the side cover 50 to the vehicle body frame 2.
- the hole formed in the side cover 50 is not limited to the attachment hole. In the side cover 50, for example, a hole through which air passes as the motorcycle 1 travels or a hole for decoration may be formed.
- the bent portion 54 (and the edge wall portion 52) is formed on the entire circumference of the cover main body 51, but the bent portion may be formed only on a part of the periphery of the cover main body.
- the integral laminated resin portion 63 is formed on the cover body (the cover body 51, the upper cover body 51U, or the lower cover body 51D) and at both ends of the cover body. It is assumed that two bent portions 54 are formed. Further, it is preferable that this cross section is a cross section intersecting with the longitudinal direction of the side cover 50, and the bent portion 54 extends along the longitudinal direction of the side cover 50.
- the cover main body 51 is formed in a curved shape that swells to the front side in at least one cross section that intersects the exterior surface, but is not limited to this configuration.
- the entire cover body 51 may be formed in a flat shape.
- the cover main body (the cover main body 51, the upper cover main body 51U, or the lower cover main body 51D) connects the two bent portions 54 formed at both ends of the cover main body. You may form in the shape of a curve dented with respect to the virtual straight line.
- the protrusions 53A, 53B, 53C, 53D are formed in a cylindrical shape, but the protrusions of the present invention may not be cylindrical. Moreover, in the said embodiment, although all the protrusion parts 53A, 53B, 53C, 53D protrude on the back side of the cover main body 51, the exterior cover of this invention may have a protrusion part which protrudes from an exterior surface. Good.
- the straddle-type vehicle exterior cover of the present invention is applied to the front side cover 50.
- the straddle-type vehicle exterior cover of the present invention includes the rear side cover 12, the front fender 13, and the rear fender 14. Any of these may be applied.
- the exterior cover according to the present invention may be an exterior cover of a straddle-type vehicle other than the motorcycle 1.
- the present invention does not depend on the technical idea of ensuring toughness and rigidity by increasing the wall thickness that has been conventionally proposed, reinforcing it with ribs, or stacking and fastening a plurality of exterior covers. .
- the technical idea conventionally proposed and the present invention it is possible to further reduce the weight while ensuring toughness and rigidity.
- the present invention is combined with other technical ideas including a technical idea of ensuring toughness and rigidity by increasing the thickness of the wall, reinforcing with ribs, and overlapping and fastening a plurality of exterior covers. It is possible.
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Abstract
Description
第1樹脂層は、結晶性を有し、第2樹脂層よりもヤング率が大きいので、第2樹脂層よりも相対的に剛性を高めやすい。しかし、第1樹脂層の厚みが厚すぎると、外装カバーに求められる靱性を確保するのが困難となる。そこで、本発明では、第1樹脂層を第2樹脂層よりも薄くすることで、剛性と靭性を確保している。また、第2樹脂層は、第1樹脂層よりもヤング率が小さいので、靭性が確保しやすい。その一方、第2樹脂層の剛性は確保しにくい。そこで、第2樹脂層は、第1樹脂層より厚みを厚くすることで、剛性と靱性を確保している。また、第2樹脂層と第1樹脂層を一体成形して、第1樹脂層の剛性を高めやすい性質を利用することで、第2樹脂層に求められる剛性を下げることができる。そのため、剛性と靭性を確保しつつ第2樹脂層の厚みを薄くできる。そして、外装カバーは、結晶性を有する樹脂で形成された第1樹脂層が、第1樹脂層よりもヤング率の小さい樹脂で形成された第2樹脂層よりも薄い状態で、第1樹脂層と第2樹脂層が積層されて一体成形された一体積層樹脂部を含む。これにより、剛性と靱性を確保しつつ外装カバーを軽量化できる。
また、本発明の外装カバーは、外装面と交差する第1断面において、第1樹脂層と第2樹脂層とが層状に一体成形された一体積層樹脂部が、外装面が形成されたカバー本体と、カバー本体の両端部においてそれぞれ屈曲して形成された2つの第1屈曲部を形成している。そのため、外装カバーは、剛性を高めやすい第1樹脂層を含む一体積層樹脂部の形状を工夫することで、撓み変形および捩れ変形に対してより剛性を高くできる。例えば、カバー本体だけが、第1樹脂層と第2樹脂層が層状に一体成形された一体積層樹脂部で形成されている場合に比べて、より剛性を高くできる一方、靭性も確保することができる。
したがって、外装カバーに必要な剛性と靭性とを確保した状態で、第1樹脂層と第2樹脂層とを薄くすることでより軽量化を図ることが可能になる。
したがって、外装カバーに必要な剛性と靭性とを確保した状態で、第1樹脂層と第2樹脂層とを薄くすることでより軽量化を図ることが可能になる。
したがって、外装カバーに必要な剛性と靭性とを確保した状態で、第1樹脂層と第2樹脂層とを薄くすることでより軽量化を図ることが可能になる。
したがって、外装カバーに必要な剛性と靭性とを確保した状態で、第1樹脂層と第2樹脂層とを薄くすることでより軽量化を図ることが可能になる。
なお、第1断面におけるカバー本体の幅とは、第1断面においてカバー本体が曲線状の場合、第1断面におけるカバー本体の長さではなく、カバー本体の両端部の離間距離のことである。
したがって、外装カバーに必要な剛性と靭性とを確保した状態で、第1樹脂層と第2樹脂層とを薄くすることでより軽量化を図ることが可能になる。
したがって、必要な剛性を確保しつつ、第1縁壁部の長さをできるだけ短くすることができるため、外装カバーをさらに軽量化できる。
したがって、外装カバーに必要な剛性と靭性とを確保した状態で、第1樹脂層と第2樹脂層とを薄くすることでより軽量化を図ることが可能になる。
したがって、外装カバーに必要な剛性と靭性とを確保した状態で、第1樹脂層と第2樹脂層とを薄くすることでより軽量化を図ることが可能になる。
なお、本発明の突出部は、カバー本体の外装面から突出していてもよく、カバー本体の外装面と反対側の面から突出していてもよい。
したがって、外装カバーに必要な剛性と靭性とを確保した状態で、第1樹脂層と第2樹脂層とを薄くすることでより軽量化を図ることが可能になる。
以下、図面を参照しながら、本発明の実施の形態について説明する。図1に示すように、本実施形態に係る鞍乗型車両は、モトクロッサーと呼ばれるオフロード型の自動二輪車1である。ただし、本発明に係る鞍乗型車両はオフロード型の自動二輪車1に限定される訳ではない。鞍乗型車両は、乗員が跨って乗車する任意の車両を意味する。本発明の鞍乗型車両は、オンロード型、スクータ型、モペット型等の他の型式の自動二輪車であってもよく、三輪車、四輪バギー(ATV:ALL Terrain Vehicle)、水上バイク、スノーモービル等の自動二輪車以外の車両であってもよい。
図5の断面に現れる屈曲部55Aのうち、上カバー本体51Uと突出部53Aとの連結部分のなす角θ3は約110度である。また、図5の断面に現れる屈曲部55Aのうち、突出部53Aと下カバー本体51Dとの連結部分のなす角θ3は約100度である。また、図5の断面において、下カバー部32の屈曲部57cのなす角θ2は約130度である。このように、図6の断面において、カバー本体51の上下両端に設けられた屈曲部56a、57cの屈曲角度は互いに異なっている。
第1樹脂層62は、結晶性を有し、第2樹脂層61よりもヤング率が大きいので、第2樹脂層61よりも相対的に剛性を高めやすい。しかし、第1樹脂層62の厚みが厚すぎると、サイドカバー50に求められる靱性を確保するのが困難となる。そこで、本実施形態では、第1樹脂層62を第2樹脂層61よりも薄くすることで、剛性と靭性を確保している。また、第2樹脂層61は、第1樹脂層62よりもヤング率が小さいので、靭性が確保しやすい。その一方、第2樹脂層61の剛性は確保しにくい。そこで、第2樹脂層61は、第1樹脂層62より厚みを厚くすることで、剛性と靱性を確保している。また、第2樹脂層61と第1樹脂層62を一体成形して、第1樹脂層62の剛性を高めやすい性質を利用することで、第2樹脂層61に求められる剛性を下げることができる。そのため、剛性と靭性を確保しつつ第2樹脂層61の厚みを薄くできる。そして、サイドカバー50は、結晶性を有する樹脂で形成された第1樹脂層62が、第1樹脂層62よりもヤング率の小さい樹脂で形成された第2樹脂層61よりも薄い状態で、第1樹脂層62と第2樹脂層61が積層されて一体成形された一体積層樹脂部63を含む。これにより、剛性と靱性を確保しつつサイドカバー50を軽量化できる。
したがって、サイドカバー50に必要な剛性と靭性とを確保した状態で、第1樹脂層62と第2樹脂層61とを薄くすることでより軽量化を図ることが可能になる。
したがって、サイドカバー50に必要な剛性と靭性とを確保した状態で、第1樹脂層62と第2樹脂層61とを薄くすることでより軽量化を図ることが可能になる。
したがって、サイドカバー50に必要な剛性と靭性とを確保した状態で、第1樹脂層62と第2樹脂層61とを薄くすることでより軽量化を図ることが可能になる。
したがって、サイドカバー50に必要な剛性と靭性とを確保した状態で、第1樹脂層62と第2樹脂層61とを薄くすることでより軽量化を図ることが可能になる。
したがって、サイドカバー50に必要な剛性と靭性とを確保した状態で、第1樹脂層62と第2樹脂層61とを薄くすることでより軽量化を図ることが可能になる。
したがって、必要な剛性を確保しつつ、縁壁部52(第1縁壁部)の長さをできるだけ短くすることができるため、サイドカバー50をさらに軽量化できる。
したがって、サイドカバー50に必要な剛性と靭性とを確保した状態で、第1樹脂層62と第2樹脂層61とを薄くすることでより軽量化を図ることが可能になる。
したがって、サイドカバー50に必要な剛性と靭性とを確保した状態で、第1樹脂層62と第2樹脂層61とを薄くすることでより軽量化を図ることが可能になる。
したがって、サイドカバー50に必要な剛性と靭性とを確保した状態で、第1樹脂層62と第2樹脂層61とを薄くすることでより軽量化を図ることが可能になる。
第1実施形態に係るサイドカバー50は、第1樹脂層62が第2樹脂層61の表側に配置され、サイドカバー50の外装面を形成していた。別の言い方をすると、第1樹脂層62は第2樹脂層61に対して、縁壁部52がカバー本体51に対して配置される側に配置されていた。しかし、第2樹脂層61に対する第1樹脂層62の位置は特に限定されない。
第1実施形態に係るサイドカバー50では、第1樹脂層62および第2樹脂層61は、いずれも単一の層であった。しかし、第2樹脂層61および/または第1樹脂層62は、多層構造を有していてもよい。例えば図13に示すように、第2樹脂層61が単一の層からなり、第1樹脂層62が多層構造を有していてもよい。
前述の実施形態はいずれも本発明の実施の形態の一例に過ぎず、本発明は他に種々の形態で実施することができる。
本発明は、多くの異なった形態で具現化され得るものである。この開示は本発明の原理の実施形態を提供するものと見なされるべきである。上述の実施形態および変更例は、本発明を本明細書に記載しかつ/又は図示した好ましい実施形態に限定することを意図するものではないという了解のもとで、多くの図示実施形態がここに記載されている。
本発明は、本明細書の開示に基づいて当業者によって認識され得る、均等な要素、修正、削除、組み合わせ(例えば、各種実施形態に跨る特徴の組み合わせ)、改良及び/又は変更を含むあらゆる実施形態をも包含する。クレームの限定事項はそのクレームで用いられた用語に基づいて広く解釈されるべきであり、本明細書あるいは本願のプロセキューション中に記載された実施形態に限定されるべきではない。そのような実施形態は非排他的であると解釈されるべきである。例えば、本明細書において、「好ましくは」および「よい」という用語は非排他的なものであって、「好ましいがこれに限定されるものではない」ということを意味するものである。
50 サイドカバー
51 カバー本体
51U 上カバー本体(カバー本体)
51U 下カバー本体(カバー本体)
52、52U、52D 縁壁部
53A、53B、53C、53D 突出部
54、54U、54D、56a、56b、57a、57b、57c 屈曲部
61 第2樹脂層
62 第1樹脂層
63 一体積層樹脂部
Claims (12)
- 車体フレームにシートが支持された鞍乗型車両に用いられ、外装面を有し、前記車体フレームに支持される鞍乗型車両用外装カバーであって、
結晶性を有する樹脂で形成された第1樹脂層が、前記第1樹脂層よりもヤング率の小さい樹脂で形成された第2樹脂層よりも薄い状態で、前記第1樹脂層と前記第2樹脂層が積層されて一体成形された一体積層樹脂部を含み、
前記外装面と交差する第1方向に切断した第1断面において、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が、
前記外装面が形成されたカバー本体と、
前記カバー本体の両端部においてそれぞれ屈曲して形成された2つの第1屈曲部を形成していることを特徴とする鞍乗型車両用外装カバー。 - 前記第1断面において、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が、前記カバー本体の両端部に前記第1屈曲部を介して連なる2つの第1縁壁部を形成し、前記第1縁壁部が、前記カバー本体の両端部から前記外装面と交差する前記第1方向の一方に向けて延びていることを特徴とする請求項1に記載の鞍乗型車両用外装カバー。 - 前記第1断面において、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が形成する前記カバー本体が、前記2つの第1屈曲部を結ぶ仮想直線に対して膨らんだまたはへこんだ曲線状に形成されていることを特徴とする請求項1または2に記載の鞍乗型車両用外装カバー。 - 前記第1断面において、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が形成する前記カバー本体の幅が、前記カバー本体の両端部に前記第1屈曲部を介して連なる2つの第1縁壁部のいずれの長さよりも長いことを特徴とする請求項3に記載の鞍乗型車両用外装カバー。 - 前記第1断面において、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が形成する前記カバー本体の両端部に設けられた2つの前記第1屈曲部の屈曲角度が、互いに異なっていることを特徴とする請求項1~4のいずれかに記載の鞍乗型車両用外装カバー。 - 前記第1断面において、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が、前記カバー本体の両端部に前記第1屈曲部を介して連なる2つの第1縁壁部を形成し、前記2つの第1縁壁部の長さが、互いに異なっていることを特徴とする請求項1~5のいずれかに記載の鞍乗型車両用外装カバー。 - 前記第1断面と直交し且つ前記外装面と交差する第2断面において、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が、
前記カバー本体と、
前記カバー本体の両端部においてそれぞれ屈曲して形成された2つの第2屈曲部を形成していることを特徴とする請求項1~6のいずれかに記載の鞍乗型車両用外装カバー。 - 前記カバー本体の両端部の間に、前記カバー本体に屈曲部を介して連なる突出部が形成されており、
前記突出部を通り且つ前記外装面と交差する断面において、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が、
前記カバー本体と、
前記突出部の少なくとも一部分を形成していることを特徴とする請求項1~7のいずれかに記載の鞍乗型車両用外装カバー。 - 前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が形成する前記突出部が、筒状に形成されていることを特徴とする請求項8に記載の鞍乗型車両用外装カバー。
- 前記外装カバーの長手方向が、前記第1断面と直交する方向であり、
前記第1樹脂層と前記第2樹脂層が層状に一体成形された前記一体積層樹脂部が形成する前記第1縁壁部が、前記外装カバーの長手方向に延びていることを特徴とする請求項2に記載の鞍乗型車両用外装カバー。 - 前記第1樹脂層と層状に一体成形される前記第2樹脂層は、結晶性を有する樹脂で形成され、前記第1樹脂層よりも結晶化度が低いことを特徴とする請求項1~10のいずれかに記載の鞍乗型車両用外装カバー。
- 層状に一体成形される前記第1樹脂層および前記第2樹脂層が、共にポリプロピレンまたはポリアミドで形成されていることを特徴とする請求項11に記載の鞍乗型車両用外装カバー。
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JP2012232627A (ja) | 2011-04-28 | 2012-11-29 | Honda Motor Co Ltd | 自動二輪車における車体カバー構造 |
JP2013010386A (ja) * | 2011-06-28 | 2013-01-17 | Honda Motor Co Ltd | 自動二輪車 |
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CN105283377A (zh) | 2016-01-27 |
EP3009335A4 (en) | 2016-04-20 |
TW201509730A (zh) | 2015-03-16 |
CN105283377B (zh) | 2019-04-30 |
JPWO2014199930A1 (ja) | 2017-02-23 |
TWI531504B (zh) | 2016-05-01 |
ES2697752T3 (es) | 2019-01-28 |
JP6062049B2 (ja) | 2017-01-18 |
EP3009335A1 (en) | 2016-04-20 |
EP3009335B1 (en) | 2018-09-19 |
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