ES2264294A1 - Scooter type vehicle - Google Patents

Abstract

Scooter type vehicle. Purpose: To avoid splashing water with mud or the like on the engine side while achieving a cost reduction of parts in a scooter-type vehicle where, in a body cover that covers a body frame that has, at its end front, a front tube on which a steering handlebar is supported for steering operation, a seat arranged on top of a motor supported on the body frame for a rider to sit on, and a footrest floor is formed on which they receive the rider's feet so that they are arranged between the steering handlebar and the seat. Solution means: A body frame 25 includes a lower frame portion 27b passing under a footrest floor 103, and at a rear end of the lower frame portion 27b a fender member 120 is provided to prevent water from splashing with mud or the like next to the E motor. (Machine-translation by Google Translate, not legally binding)

Description

Scooter type vehicle.

Detailed description of the invention Technical field to which the invention

This invention relates to a scooter-type vehicle where, in a body cover that covers a body frame that has, at its front end, a front tube on which a steering handlebar for steering operation is supported, a seat it is arranged on top of a motor supported on the body frame so that a motorcyclist feels, and a footrest floor on which the biker's feet are received is formed so that it is arranged between the steering handle and the seat. The invention relates more in particular to a structure to prevent water from splashing with mud or the like on the motor side of the lower side of a floor
footrest.

Prior art

To prevent splashing water with mud or similar to the engine side, in a scooter type vehicle described in the official bulletin of Japanese Patent number 2,788,471, a general lower face of a footrest floor is covered with a Bottom cover of a large size.

Problems to solve with the invention

However, in a scooter type vehicle that employs a lower cover of a large size as in the prior art described above, an increase is incurred of the cost of the pieces.

The present invention has been realized in view of the circumstance described above, and an object of the present invention is to provide a scooter type vehicle that prevents splashing water with mud or the like next to the engine to the Once a reduction in the cost of parts is achieved.

Means to solve the problems

To achieve the object described above, according to the invention set forth in claim 1, a scooter type vehicle where, in a body cover that covers a frame of body that has, at its front end, a front tube in which is supported a steering handlebar for the operation of direction, a seat arranged on top of an engine supported in the body frame so that a biker feels, and a floor footrest on which the biker's feet are received is formed of so that it is arranged between the steering handle and the seat, characterized in that the body frame includes a portion of lower frame that goes under the ground footrest, and a fender element to prevent splashing muddy water or similar to the engine side is arranged in a rear end of the lower frame portion.

With a configuration like the one described above, since the fender element is arranged in the rear end of the low frame portion, compared to the prior art scooter type motorcycle that employs a Bottom cover of a large size, you can reduce the cost of the piece while preventing it from splashing muddy water or analogs next to the E engine.

According to the invention set forth in the claim. 2, a scooter type vehicle is characterized, in addition to the configuration of the invention set forth in claim 1, because the body frame includes a transverse tube that extends in directions to the left and right of the body frame and fixed to one rear end of the portion bottom frame, and the fender element is formed so covering the cross tube at least on the front side. With a configuration like the one just described, can be avoided that splashes muddy water next to the engine at a distance substantially general of the body frame in the directions to the left and to the right.

According to the invention set forth in the claim. 3, a scooter type vehicle is characterized, in addition to the configuration of the invention set forth in claim 1 or 2, because a face tilted forward is formed at less on a lower portion of a front face of the element mudguard. With a configuration like the one just be described, since water with mud or analogues that collide with the fender element are guided back and down the fender element, can be avoided more safely than splash water with mud or the like next to the engine.

According to the invention set forth in the claim. 4, a scooter type vehicle is characterized, in addition to the configuration of the invention set forth in any of the claims 1 to 3, because a housing compartment of battery to house a battery is arranged on the floor footrest, and a hole for a wiring line to lead to battery compartment is arranged in a rear wall of battery compartment at the same time that a protective wall is formed that covers the side hole rear integrally in the fender element. With a configuration like the one just described, since the hole for a wiring line arranged in the compartment Battery housing is covered with the protective wall of the mudguard element, you can prevent water with mud or analogs reach the battery storage compartment without provision of a part for exclusive use.

According to the invention set forth in the claim. 5, a scooter type vehicle is characterized, in addition to the configuration of the invention set forth in claim 2, because the fender element is formed so that it covers the opposite end holes of the cross tube. With a configuration like the one just described, the need to work to close the opposite ends of the tube transverse, and you can reduce the number of hours of work-man.

In addition, according to the invention set forth in the claim 6, a scooter type vehicle is characterized in addition to the configuration of the invention set forth in claim 1, because the fender element made of a resin material synthetic has a retention portion for a harness integrally formed. With a configuration like the one just described, a harness arranged near the element Fender can be retained by the fender element. In consequently, the need for a part for use is eliminated exclusive to retain the harness and cables, which can contribute to the reduction of the number of pieces.

Brief description of the drawings

Figure 1 is a side elevational view of a scooter type motorcycle.

Figure 2 is a perspective view of a rear portion of the scooter type motorcycle in a state where a body cover and a compartment are omitted slides

Figure 3 is a side elevational view of a  body frame.

Figure 4 is an enlarged view as seen in an address of an arrow mark 4 of figure 3.

Figure 5 is a plan view in a state where a fender element and a joint vibration isolator.

Figure 6 is an enlarged sectional view of a portion indicated by an arrow mark 6 of Figure 1.

Figure 7 is a sectional view taken at along line 7-7 of figure 4.

Figure 8 is a plan view of the insulator of joint vibration.

Figure 9 is a perspective of a portion motorcycle scooter average in a state where they are omitted body cover and slide compartment.

Figure 10 is a plan view of a filter of air and a connecting tube as seen from above.

Figure 11 is a side elevation view taken along line 11-11 of figure 11 in a state where the air filter is omitted.

Figure 12 is a view of a portion top scooter type motorcycle as seen from the side rear in a state where the body cover is omitted.

Figure 13 is a sectional view and sectioned of the main part showing a connection portion of a upward end of an intake tube to a tube of rear frame

Figure 14 is a vertical section view showing a configuration of an air control valve secondary.

Figure 15 is a sectional view taken at  along line 15-15 of figure 6.

Figure 16 is a perspective view of a footrest floor.

Figure 17 is a plan view of part of the footrest floor.

Figure 18 is a front elevation view of the fender element.

Figure 19 is a side elevation view as seen in a direction indicated by an arrow mark 19 of Figure 18

Figure 20 is a plan view as seen in a direction indicated by an arrow mark 20 of the figure 19.

Figure 21 is a sectional view taken at  along line 21-21 in figure 18.

Figure 22 is a sectional view taken at  along line 22-22 in figure 18.

Figure 23 is a sectional view taken at  along line 23-23 of figure 18.

Description of reference characters

25: frame of bodywork 26: tube Forward 27b: rack portion lower 28: tube cross 35: handlebar address 101: cover of bodywork 103: ground footrest 105: seat

110: storage compartment from drums 110a: wall rear 112: drums 117: hole 118: line wiring 120: element mudguard 125: face inclined 127: wall protective 128: portion of retention AND: engine.

Method of implementing the invention

An embodiment of the  present invention in connection with an operative example of the present invention shown in the accompanying drawings.

Figures 1 to 23 show an operational example of the present invention, and Figure 1 is a side view in elevation of a scooter type motorcycle, figure 2 is a view in perspective of a rear portion of the scooter type motorcycle in a state where a body cover and a slide compartment, figure 3 is a side view in elevation of a body frame, figure 4 is a view enlarged as seen in one direction of an arrow mark 4 of Figure 3, Figure 5 is a plan view in a state where a fender element and a joint vibration isolator, figure 6 is a view in enlarged section of a portion indicated by an arrow mark 6 of figure 1, figure 7 is a sectional view taken at along line 7-7 of figure 4, figure 8 It is a plan view of the joint vibration isolator, Figure 9 is a perspective view of a middle portion of the scooter type motorcycle in a state where the cover is omitted of bodywork and the slide compartment, Figure 10 is a plan view of an air filter and a connecting tube as seen from above, figure 11 is an elevation view lateral taken along line 11-11 of the figure 10 in a state where the air filter is omitted, figure 12 is a view of an upper portion of the motorcycle type scooter as seen from the back side in a state where it omit the body cover, figure 13 is a view in section and cut of the main part showing a portion of connection of one end located upstream of an intake pipe to a rear frame tube, Figure 14 is a sectional view vertical showing a configuration of a control valve secondary air, figure 15 is a sectional view taken at along line 15-15 of figure 6, figure 16 is a perspective view of a footrest floor, Figure 17 it is a plan view of part of the footrest floor, figure 18 it is a front elevation view of the fender element, the figure 19 is a side elevation view as seen in one direction indicated by an arrow mark 19 of figure 18, figure 20 it is a plan view as seen in a direction indicated by an arrow mark 20 of figure 19, figure 21 is a view in section taken along line 21-21 of Figure 18, Figure 22 is a sectional view taken at along line 22-22 of figure 18, and the Figure 23 is a sectional view taken along the line 23-23 of Figure 18.

With reference first to figures 1 to 5, a body frame 25 of a scooter type motorcycle includes a main frame tube 27 that has a front tube 26 fixed to its front end, a cross tube 28 fixed perpendicular to one rear end of the frame tube main 27, and a pair of right rear frame tubes e left 29 and 30 that have front ends attached to the opposite end portions of the cross tube 28.

The main frame tube 27 includes a descending frame portion 27a tilted back towards below the front tube 26, and a lower frame portion 27b which extends substantially horizontally and backwards of a rear end of the descending frame portion 27a and integrally joined with the descending frame portion 27a. A rubber support portion 31 in the form of a crushed tube in directions up and down is formed in a portion of rear end of the lower frame portion 27b. The tube transverse 28 extends in directions to the left and to the right of body frame 25 and is fixed perpendicularly in its central portion in an axial direction to a rear end portion of the main frame tube 27 of such that the rubber support portion 31 extends by the axially central portion of the cross tube 28. In addition, a pair of upper and lower reinforcement elements 32 and 33 to reinforce the joint portion of the cross tube 28 and the tube of main frame 27 are arranged between the transverse tube 28 and the main frame tube 27.

The pair of right rear frame tubes e left 29 and 30 have ascending frame portions 29a and 30a that extend backwards upwards from the portions opposite ends of cross tube 28 and frame portions upper 29b and 30b integrally connected with the frame tubes rear 29 and 30 and extending substantially horizontal backwards of rear ends of the portions of ascending frame 29a and 30a but curved in a horizontal plane in such a way that the holes located at its rear ends face each other.

A front fork 34 is supported to steering movement in the front tube 26 and extends to through a front wheel WF, and a steering handlebar 35 is connected to an upper end of the front fork 34.

A power unit P including an E motor arranged on the front side of a WR rear wheel and a non-ethereal transmission M arranged to the left of the wheel WR rear is supported for swinging up and down in front portions of the two frame tubes rear 29 and 30 of the body frame 25. The rear wheel WR is supported for rotation in a rear portion of the unit power P. The E motor is a four-stroke single cylinder engine whose cylinder is arranged substantially horizontally, and the non-ethereal transmission M is, for example, of the type of belt.

A rear shock absorber unit 36 is disposed between a rear portion of the power unit P and the  left rear frame tube 29 of the pair of frame tubes right and left rear 29 and 30. In addition, an exhaust pipe 37 to introduce exhaust gases from the engine E extends from the E motor on the right side of the WR rear wheel. The exhaust pipe 37 is connected to an exhaust silencer 38 arranged towards the WR rear wheel right.

A slide compartment 39 that can contain a helmet or analogs is supported between front portions of the two rear frame tubes 29 and 30 such that it is arranged on top of engine E, and a fuel tank 40 is supports between rear portions of the two frame tubes rear 29 and 30.

By the way, the power unit P is supported for oscillating movement up and down in the body frame 25 by means of a vibration isolator articulation 41, and a structure of the vibration isolator of articulation 41 are described with additional reference to the figures 6 to 8.

The articulation vibration isolator 41 includes: a pair of right and left side engine mounts 42, 42 arranged in lower portions displaced towards ahead of the power unit P; a pair of rack supports right and left sides 43, 43 arranged in portions bottoms of the ascending frame portions 29a and 30a of the two rear frame tubes 29 and 30 of the frame body 25; a rotating cylindrical tube 44 disposed between the two side engine mounts 42, 42; a connection shaft 45 provided between the two lateral motor supports 42, 42 and that supports the rotating tube 44 for rotation therein; a pair of Right and left articulation elements 46, 46 formed each one in the form of a tube that has a cross section rectangular and fixed at one end to the rotating tube 44; a tube external cylindrical 47 arranged between the two lateral supports of frame 43, 43 and having the other ends of the elements of joint 46, 46 fixed thereto; an internal cylindrical tube 48  arranged coaxially in the outer tube 47; rubber bushes 50, ... stuck in their inner peripheries to the portions of opposite ends of the inner tube 48 and glued on its peripheries external to a cylindrical housing 49 forced into the opposite end portions of the outer tube 47; an axis of tilting support 51 arranged between the two lateral supports of frame 43, 43 and supporting the inner tube 48 for rotation in he; an arm 52 fixed to an axially central portion of the tube external 47 and extending forward; and a stopper element rubber 53 mounted on a free end of arm 52.

The rubber stop member 53 is inserted into the rubber support portion 31 formed at the rear end of the main frame tube 27 such that the faces opposite upper and lower rubber stopper element 53 contact the upper and lower inner faces of the rubber support portion 31.

In articulation vibration isolator 41 which has the configuration described above, a load that operates on the tilting support shaft 51 of the unit E motor of power P is absorbed by the elastic deformation of the rubber bushes 50, ... and also absorbed by the formation elastic of the rubber stop element 53 when the element of rubber bumper 53 is pressed against the upper inner faces and lower of the rubber support portion 31.

In addition, bulging protective elements 54, 54 down more than the articulation elements 46, 46 are fixed to positions of the two articulation elements 46, 46 lower between several elements located forward of the power unit P and lower than the side supports of frame 43. Each of the protective elements 54, ... is formed from, for example, a steel bar (tube) curved in a semicircular shape to achieve weight reduction and ensure high resistance.

With reference also to figure 9, a system of intake 57 of engine E includes: an intake pipe 58 connected to an upper portion of the engine E; a carburetor 59 connected to one end located upstream of the intake pipe 58; an air filter 60 disposed back of the carburetor 59 and to the left of the rear wheel WR, and a connection tube 61 made of a synthetic resin material and that interconnects the air filter 60 and carburetor 59. The intake system 57 it is arranged between the slide compartment 39 and the engine AND.

With further reference to figures 10 and 11, the air filter 60 is attached to a rear portion of the unit power P so that it is arranged on the left side above the rear wheel WR. In addition, the connecting tube 61 is arranged in a curved configuration in a substantially plane horizontal so that it interconnects the air filter 60 arranged on the left side above the rear wheel WR and the carburetor 59 arranged forward of the rear wheel WR.

A vertical wall 61a protruding towards above the connecting tube 61 integrally forms protruding in an upper portion of the connecting tube 61, and a hanging wall 39a that overlaps in forward directions and backward with the vertical wall 61a forward of the wheel rear WR is integrally arranged in a lower portion of the  slide compartment 39 arranged above the tube connection 61 so that it hangs down. It forms a labyrinth 62 between vertical wall 61a and hanging wall 39a to prevent water with mud or the like from splashing from the WR rear wheel advances to a forward position of the tube connection 61, that is, next to carburetor 59.

In addition, a wall of fenders 61b for prevent muddy water or the like from splashing from the wheel WR rear forward forward, is integrally arranged in a lower portion of the connecting tube 61 such that it hangs down the connection tube 61.

With reference also to figure 12, a filter of secondary air 63 to purify secondary air to be supplied Exhaust holes (not shown) of engine E are supported on a front portion of the upper frame portion 29b of the left side 29 of the two rear frame tubes 29 and 30

An intake tube 64 is connected in its end located down to an intake hole of the filter secondary air 63, and one end located up the tube of admission 64 is inserted into a rear end portion of the upper frame portion 30b of the rear frame tube right 30 of the two rear frame tubes 29 and 30, from a rear end hole 30c of the upper frame portion 30b In addition, the upstream end of the intake tube 64 is supported on the rear frame tube 30 by a material Soundproofing 65 interposed in a compressed state between your face outer and an inner face of the rear frame tube 30. The Soundproofing material 65 is formed from an elastic material which has air permeability such as, for example, sponge. In other terms, the upward end of the tube intake 64 is inserted into the rear end hole 30c of the rear frame tube 30 with soundproofing material 65 interposed between it and the inner side of the frame tube rear 30.

To insert the intake tube 64 into a gently curved configuration in the rear end hole 30c of the rear frame tube 30, a lower portion of a rear end of the other rear frame tube 29 is cut to form an inclined face 29c such that its distance from the rear frame tube 30 rise down, and the tube admission 64 is arranged in such a way that it extends along of the inclined face 29c.

A secondary air control valve 66 arranged between the engine E and the secondary air filter 63 is supports by a support 67 attached to an upper portion of the ascending frame portion 29a of the rear frame tube left 29. Although the secondary air filter 63 is arranged backward of the ascending frame portion 29a, the valve secondary air control 66 is arranged forward of the ascending frame portion 29a such that the portion of ascending frame 29a is sandwiched between the valve secondary air control 66 and secondary air filter 63.

With reference to figure 14, the valve secondary air control 66 includes a diaphragm actuator 68, an opening / closing valve 69 moved by the actuator of diaphragm 68 to close, and a reed valve 70 for allow only air circulation next to the hole of engine exhaust E.

The diaphragm actuator 68 includes a housing 71, a diaphragm 72 interspersed in its edge portion peripheral for the housing 71, and a rod 73 made of a material metallic and connected at one end to a central portion of the diaphragm 72.

The housing 71 includes a body 74, and a cover 75 fixed to the body 74 and cooperating with the body 74 to insert the peripheral edge portion of the diaphragm 72 in an air-tight manner in between. A negative pressure chamber 76 in front of which is a face of the diaphragm 72, is formed between the cover 75 and the diaphragm 72, while an atmospheric air pressure chamber 77 is formed between the body 74 and the diaphragm 72. A portion of connecting tube 79 having a throttle hole 78 at its end has been arranged contiguously to a central portion of the cover 75, and a negative pressure extraction conduit 80 that communicates with the interior of the pressure chamber negative 76 through the throttle hole 78 is connected to the connecting tube portion 79. The negative pressure extraction conduit 80 is connected to the intake tube 58 of the intake system 57. Consequently, a negative pressure in the tube intake 58 operates in the negative pressure chamber
76

The rod 73 is supported for movement in axial direction through the body 74. The rod 73 is connected in one end directly to a central portion of the diaphragm 72 in the side of the atmospheric air pressure chamber 77.

In the diaphragm actuator 68 which has a configuration as described above, when the pressure negative in the intake tube 58 is high, the diaphragm 72 is distorts in a direction in which the volume of the negative pressure chamber 76 and rod 73 moves to the left in figure 14.

The opening / closing valve 69 includes a valve housing 81, one valve body 82 fixed to the other rod end 73, and a return spring 83 interposed between the valve housing 81 and the valve body 82.

The valve housing 81 is formed by the body 74 and a suction cover 84 fixed to body 74de air tight way. In the body 74 a passage of air communication 85; a communication hole 86 for communicate the air communication passage 85 with the chamber of atmospheric air pressure 77; a valve hole 87 arranged coaxially with rod 73 and communicating with one end located upward of the air communication passage 85; a valve seat 88 in whose central portion the valve hole 87 is open on the side opposite the air communication passage 85; and a portion of support tube 89 that has a portion inserted coaxially into valve hole 87. Rod 73 extending coaxially through valve hole 87 is fitted for sliding movement in axial directions in the support tube portion 89.

A valve chamber 90 is formed between the body 74 and the suction cover 84. In addition, a portion of connecting tube 91 communicating with the valve chamber 90 is integrally forms in the suction cover 84, and a duct 92 is connected at its end located down to the tube of Connection. Meanwhile, conduit 92 is connected in its end up to the secondary air filter 63.

The valve seat 88 is formed in the body 74 such that it is in front of the valve chamber 90, and the valve body 82 housed in the valve chamber 90 of such so that it can be seated in the valve seat 88 is fixedly arranged on the other end of the rod 73.

The return spring 83 is a helical spring which surrounds the support tube portion 89 and is disposed between body 74 and valve body 82 in such a way that it exerts elastic force in one direction to move the valve body away 82 of the valve seat 88, that is, in a direction for distort the diaphragm 72 of the diaphragm actuator 68 towards the atmospheric air pressure chamber 77.

The reed valve 70 is supported on a sheet of valve holder 94 formed in a disk-like manner that it has a valve hole 93 in its central portion so that open and close the valve hole 93. The support plate of valve 94 is sandwiched in the air between the body 74 and a cover 95 fixed to body 74 such that the valve hole 93 communicate with the end towards below the air communication passage 85. In addition, a chamber of valve 96 in which reed valve 70 is housed is formed between the cover 95 and the valve support plate 94, and a secondary air supply conduit 98 is connected in its end facing up to a portion of connecting tube 97 arranged integrally on deck 95 and communicating with the valve chamber 96. One end located down the duct secondary air supply 98 is connected to a portion bottom of engine E and communicates with the exhaust holes of the E. engine

The secondary air control valve 66 which It has a configuration as described above is supported in an upper portion of the ascending frame portion 29a of the left rear frame tube 29 when a portion of flange 77a integrally disposed in the body 74 is fixed to the support 67.

Meanwhile, a portion of connecting tube 99 communicating with the inside of the frame portion ascending 29a is arranged in a lower portion of the portion up frame 29a of the left rear frame tube 29, and a duct 100 for introducing cooling air out from within the non-ethereal transmission M of the unit of power P is connected to the connecting tube portion 99.

With particular reference to Figure 1, the body frame 25 is covered with a body cover 101 made of a synthetic resin material. The cover of body 101 includes: a leg protector 102 to cover the driver's feet on the front side; a floor footrest 103 connecting with a lower portion of the leg guard 102 to receive the biker's feet; and a side cover 104 that  connect to the footrest floor 103 to cover a portion rear of the vehicle body on opposite sides.

The storage compartment 39 and the tank of fuel 40 are covered with the side cover 104, and a seat 105 covering the slide compartment 39 on the side upper so that the biker can sit on top, It is mounted for opening and closing movement to a portion upper side cover 104. In particular, the floor footrest 103 is formed in body cover 101 of such so that it is arranged between the steering handle 35 and the seat 105, and side frame supports 43 ... for support the power unit P for oscillating movement in the body frame 25 are arranged under one end rear floor footrest 103.

A support element 106 is fixed to a front portion of the lower frame portion 27b of the tube of main frame 27, and a front support tube 107 which is extends in the left and right directions of the motorcycle above the lower frame portion 27b it is fixed in its central portion to the support element 106. In addition, rear support tubes 108, 108 are provided. vertically at the opposite end portions of the tube transverse 28, and a pair of floor support frames 109, 109 extending parallel to the lower frame portion 27b are attached to the opposite end portions of the tube front support 107 and upper end portions of the rear support tubes 108, 108.

As depicted in Figure 6, portions projections 103a, 103a to contact upper faces of front and rear portions of floor support racks 109, 109 are planned entirely in front portions and rear of the right and left sides of the floor footrest 103 such that they protrude downward. Soil footrest 103 is supported on the two floor support racks 109, 109 when the outgoing portions 103a, 103a ... are fixed to the floor support frames 109, 109.

With reference to figures 15 to 17, a battery storage compartment 110 in the form of a open box in its upper portion is integrally formed in a substantially central portion of the footrest floor 103 of such so that it protrudes down from the footrest floor 103. The upper open end of the storage compartment battery 110 closes with a cover plate 111 made of a synthetic resin material and removably attached to the ground footrest 103.

A battery 112, a CDI 113 drive, a relay starter 114, a fuse box 115 or the like are housed and fixed in battery storage compartment 110. In addition, a hole 117 for conducting wiring lines 118 connected to battery 112, the CDI 113, the starter relay 114, fuse box 115 or the like inside the battery storage compartment 110 is arranged in a rear wall 110a of the storage compartment of battery 110.

At one rear end of the frame portion lower 27b of the body frame 25 passing below the footrest floor 103 a fender element 120 is arranged Made of a synthetic resin material to prevent splashing muddy water or the like next to the engine E.

The fender element 120 is attached to the tube cross 28 fixed to a rear end of the portion of lower frame 27b such that it covers the transverse tube 28 at least from the front side.

With reference to figures 18 to 23, the fender element 120 is formed such that it covers the tube cross 28 fixed to the rear end of the frame portion bottom 27b at least from the front side. The element fender 120 has integrally: a front wall 120a that covers cross tube 28 from the front side; a wall upper 120b formed such that it extends backwards and substantially horizontally from an upper end of the front wall 120a; a pair of side walls 120c and 120d that connect with the front wall 120a and the upper wall 120b; and one cover portion 120e that is substantially U-shaped in cross section open down and extending towards ahead of a substantially central portion of the wall front 120a.

The upper wall 120b covers the transverse tube 28 on the upper side, and the opposite ends of the tube transverse 28 are covered with the two side walls 120c and 120d. In particular, the fender element 120 is formed in such a way covering the cross tube 28 on the front side, on the side upper and opposite sides. In addition, a rear portion of the lower frame portion 27b is covered by the upper side with the cover portion 120e.

By the way, a pair of support arm portions 33a, 33a that contact from the lower side with the opposite right and left sides of the upper wall 120b of the fender element 120, are provided integrally in the lower reinforcing element 33, of the pair of upper and lower reinforcing elements 32 and 33 arranged between the cross tube 28 and the main frame tube 27 to reinforce the joint portion of the cross tube 28 and the main frame tube 27. Weldable nuts
121, ... are fixed to the support arm portions 33a, .... Meanwhile, a pair of insertion holes 122, 122 are provided in portions of the upper wall 120b corresponding to the support arm portions 33a, ..., and threaded elements 123, ... embedded in the holes of introduction
122, ... are screwed and tightened to the weldable nuts 121, ... to join the fender element 120 to the two support arm portions 33a.

A housing recess 124 to accommodate a right side rear portion of the compartment battery storage 110 is arranged in an upper portion of the front wall 120a on the right side of the portion of cover 120e.

A face 125 tilted forward towards above forms at least on a lower portion of a face front of fender element 120, in the operational example present, a front face of the front wall 120a except of housing recess 124 described above. Also they have been formed faces 126, 126 inclined downwards in lower portions of the two side walls 120c and 120d that cover the opposite end holes of the cross tube 28, and also the lower portions of the opposite end of the tube cross section 28 are cut obliquely corresponding to the inclined faces 126, ....

By the way, although hole 117 for wiring lines 118 to lead to the compartment of battery storage 110 is arranged on the rear wall 110a of the battery storage compartment 110 arranged integrally on the footrest floor 103, a protective wall 127 covering hole 117 on the back side is integrally formed in the upper wall 120b of the fender element 120 of such way that stands out.

In addition, a retention portion 128 formed in a circular shape and having a groove 129 in its position in a circumferential direction is formed in a front portion of the upper wall 120b forward of the introduction hole left 122 of the two introduction holes 122, 122. A mallet of cables can be maintained by the retention portion 128 introducing them into the retention portion 128 through the slit 129.

Next, the operation of the present operating example will be described. The pair of articulation elements 46, ... to support the front portion of the power unit P for oscillating movement up and down in the body frame 25 interconnects the side frame supports 43, ... arranged below that the rear end of the footrest floor 103 and that they are part of the body frame 25 and the pair of side engine mounts 42, ... arranged in lower portions of the power unit P. The protective elements
54, ... bent downwards more than the articulation elements 46, ... are fixed to the articulation elements 46, .... In addition, the protective elements 54, ... are domed downwards so that they are placed lower between the elements arranged forward of the power unit P and lower than the side frame supports 43. Therefore, if the motorcycle passes over an obstacle such as a curb, the obstacle crashes against the protective elements 54, ... before the power unit P, and since the articulation elements 46, ... pivot to move the unit of power P up, prevents the power unit P from directly hitting the obstacle. Furthermore, such collision of the power unit P with the obstacle can be avoided with a very simple structure in which only the protective elements 54, ... are provided
to fixedly on the articulation elements 46, ....

By the way, the slide compartment 39 is arranged between the power unit P and the seat 105 of such that its top end hole is closed with the seat 105, and the intake system 57 including the tube intake 58 connected to an upper portion of the engine E, the carburetor 59 connected to the upward end of the pipe intake 58, the air filter 60 arranged rearward of the carburetor 59 and connecting tube 61 that interconnects the filter of air 60 and carburetor 59 is disposed between the engine E and the slide compartment 39. In addition, vertical wall 61a disposed integrally in an upper portion of the tube connection 61 and protruding upwards, and the hanging wall 39a integrally arranged in a lower portion of the compartment slides 39 and hanging down, are arranged in positions that overlap in the forward and forward directions  behind each other in such a way that labyrinth 62 to prevent between muddy water or the like splashed by the rear wheel WR between forward beyond the connecting tube 61 is formed between the vertical wall 61a and the hanging wall 39a.

Therefore, it is avoided as much as water with mud or the like splashed by the rear wheel WR advance towards the motor side E forward of the connecting tube 61. In addition, since any part other than the compartment slide 39 and connecting tube 61 is unnecessary, it can be achieve a reduction in the number of parts and you can achieve reduction of man-hours needed for mounting.

In addition, the fender wall 61b to avoid that muddy water or the like that splashes from the rear wheel WR moving forward, is fully arranged in a lower portion of the connecting tube 61 such that it hangs down the connecting tube 61, and the forward movement of the muddy water or the like splashed by the rear wheel WR more beyond connection tube 61 it can be locked more securely through the fender wall 61b.

In addition, the body frame 25 includes the lower frame portion 27b that passes below ground footrest 103, and fender element 120 to prevent splash water with mud or the like next to the engine E is disposed at the rear end of the lower frame portion 27b

Therefore, compared to the motorcycle scooter type of the prior art employing a cover Bottom of a large size, you can reduce the cost of the piece while preventing water from splashing with mud or similar to engine side E.

In addition, since the body frame 25 includes cross tube 28 extending in the directions to the left and to the right of the body frame 25 and fixed to the rear end of the lower frame portion 27b, and the fender element 120 is formed such that it covers the cross tube 28 at least from the front side, can be avoided that splashes water next to the engine E at a distance substantially general of the body frame 25 in the directions to the left and to the right.

In addition, since the face 125 inclined towards forward upwards it forms at least in a lower portion of the front face of the fender element 120 and the water with mud or analogs that collide with the fender element 120 are guided towards back and down of the fender element 120 on the face inclined 125, you can more safely avoid splashing water with mud or the like next to the E engine.

By the way, although the sharing of battery storage 110 to accommodate battery 112 or the like it is arranged in the footrest floor 103 and the hole 117 for the wiring lines 118 to lead to the compartment of battery storage 110 is arranged on the rear wall 110a battery storage compartment 110, the wall protective 127 covering hole 117 on the back side is integrally forms in the fender element 120. By consequently, water with mud or the like can be prevented reach the battery storage compartment 110 without provision of a piece for exclusive use.

In addition, since the fender element 120 is  such that it covers the holes at the opposite end of the cross tube 28, the need for mounting to close is eliminated opposite ends of cross tube 28, and can be reduced the number of hours of work-man.

In addition, the retention portion 128 for a mallet of wires is integrally formed in the fender element 120 made of a synthetic resin material, and a harness arranged near the fender element 120 can be retained by the fender element 120. Consequently, the need of a part for exclusive use to retain the mallet of cables and cables, which can contribute to the reduction of the number of pieces.

In addition, the secondary air filter 63 for purify secondary air to be supplied to the exhaust system of the engine E is disposed outside the body frame 25 and supported on the left rear frame tube 29, and so therefore, maintenance of the secondary air filter 63 is easy.

In addition, the downward end of the tube intake 64 is connected to the intake hole of the filter secondary air 63, and the upward end of the tube intake 64 is inserted into the rear end hole 30c of the rear frame tube 30 with soundproofing material 65 interposed between it and the inner side of the frame tube right rear 30.

Consequently, the need for connection of an additional part when the intake pipe 64 is connected to the rear frame tube 30 and the cost. In addition, since the soundproofing material 65 that allows the air circulation is arranged between the end toward above the intake tube 64 and the inner face of the tube rear frame 30, echo of air sound can be suppressed intake in the rear frame tube 30 to achieve this a soundproofing effect.

In addition, since the air control valve secondary 66 arranged between the engine E and the air filter secondary 63 and supported on body frame 25 is arranged on the side opposite the secondary air filter 63 with with respect to the ascending frame portion 29a of the tube of rear frame 29 which is part of the body frame 25, the secondary air filter 63 and air control valve secondary 66 may be arranged close to each other to simplify the structure to connect the air filter to each other secondary 63 and secondary air control valve 66.

In addition, since the body frame 25 it has, in its rear portions, the pair of frame tubes right and left rear 29 and 30 that have the ends rear that open in opposite relation to each other, and the end located upstream of the intake tube 64 is inserted into the rear end hole of the rear frame tube 30 which is one of the rear frame tubes 29 and 30, the need to perform additional work for the frame tube rear 30 to connect the intake pipe 64 to the frame tube 30 rear, and you can reduce the cost further.

In addition, since the inclined face 29c is formed at the rear end of the other rear frame tube 29 of the pair of right and left rear frame tubes 29 and 30 that they have the open rear ends in opposite relation to each other, and the intake tube 64 is arranged such that it extend along the inclined face 29c, the intake tube 64 can be inserted into the rear end hole 30c of the rear frame tube 30 without bending considerably, and it can achieve a good flow of intake air into the tube admission 64.

Although an example has been described above Operational of the present invention, the present invention is not limited to the operational example described above, but it can be done several design alterations without departing from the present invention set forth in the claims.

Effects of the invention

As described above, according to the invention set forth in claim 1, in comparison with the scooter type motorcycle of the prior art employing a Bottom cover of a large size, you can reduce the cost of the piece while preventing it from splashing muddy water or analogs next to the E engine.

In addition, according to the invention set forth in the claim 2, water can be prevented from splashing beside engine at a substantially general distance from the frame of body in the directions to the left and towards the right.

According to the invention set forth in the claim. 3, since water with mud or analogues that collide with the fender element are guided back and down the fender element, can be avoided more safely than splash water with mud or the like next to the engine.

According to the invention set forth in the claim. 4, since the hole for a wiring line arranged in the Battery housing compartment is covered with the wall protective of the fender element, water can be prevented with mud or the like arrive at the storage compartment of battery without provision of a part for exclusive use.

According to the invention set forth in the claim. 5, the need to work to close the ends is eliminated opposites of the transverse tube, and the number of hours of work-man.

According to the invention set forth in the claim. 6, a wire harness arranged near the fender element It can be retained by the fender element. In consecuense, the need for a part for exclusive use for retain the harness and cables, which can contribute to the reduction of the number of pieces.

Claims (6)

1. A scooter-type vehicle where, in a body cover (101) covering a body frame (25) that has, at its front end, a front tube (26) on which a steering handle (35) is supported ) for the steering operation, a seat (105) arranged on top of an engine (E) supported on said body frame (25) for a motorist to feel, and a footrest floor (103) on which the feet are received of the motorcyclist, is formed so that it is arranged between said steering handlebar (35) and said seat (105), characterized in that said body frame (25) includes a lower frame portion (27b) passing under said floor footrest (103), and a fender element (120) to prevent water from splashing with mud or the like to said motor side (E) is disposed at a rear end of said lower frame portion (27b). 2. A scooter type vehicle according to claim 1, characterized in that said body frame (25) includes a transverse tube (28) extending in the left and right directions of said body frame (25) and fixed to a rear end of said lower frame portion (27b), and said fender element (120) is formed such that it covers said transverse tube (28) at least on the front side. 3. A scooter type vehicle according to claim 1 or 2, characterized in that a face (125) inclined forwardly upwards is formed at least in a lower portion of a front face of said mudguard element (120). A scooter type vehicle according to any one of claims 1 to 3, characterized in that a battery housing compartment (110) for accommodating a battery (112) is arranged on said footrest floor (103), and a hole (117) for a wiring line (118) to lead to said battery housing compartment (110) is arranged in a rear wall (110a) of said battery housing compartment (110) while a protective wall (127) is formed covering said hole (117) on the rear side integrally in said fender element (120). A scooter type vehicle according to claim 2, characterized in that said fender element (120) is formed so as to cover the opposite end holes of said transverse tube (28). A scooter type vehicle according to claim 1, characterized in that said fender element (120) made of a synthetic resin material has a retention portion (128) for a wiring harness formed integrally thereon.