CN1276315A - Body cover structure for motor-driven two-wheeled cycle - Google Patents

Abstract

The present invention is to easily provide an air passage in a vehicle body cover with a simple and small molding die. A U-shaped notch (34f) is provided on an undercover (34) by folding a tongue piece (34g) thus obtained inward, fixing it to a front frame (11F) at this angle, and forming the air passage (34k) where air flows in or out on the undercover (34).

Description

The body cover structure of motor bike

The present invention relates to the body cover structure of motor bike.

As the body cover structure of motor bike, for example, the flat 10-273083 communique of Japanese Patent Publication Laid-Open " body cover structure of vehicle " is known.

According to Fig. 1 of this communique, above-mentioned prior art is with body cover 10 (label is quoted person described in the communique, down together) covering body.And then, according to Fig. 2 and Fig. 5 of this communique, on the cover member 11 that constitutes body cover 10, form the barrel-contoured peristome 21,21 of pair of right and left of similar air duct.

, general on the body cover of motor bike, for cooled engine or radiator etc., often integrally form the air flue of forming by barrel-contoured air duct.Come cooled engine or radiator by the outside air that sucks from air duct.

But, according to the structure of body cover,, use complicated and large-scale molding die in order integrally to form barrel-contoured air duct, this becomes the reason that cost raises.If owing to using simple and small-sized molding die in order to address this problem, then the shape of air duct or position are restricted, so exist room for improvement.

Therefore, the object of the present invention is to provide the enough simple and small-sized molding die of a kind of energy, easily the technology of air flue is set on body cover.

To achieve these goals, the body cover structure of the motor bike of the present invention's first scheme, on the body cover of covering body, form the otch of ㄩ font substantially, inside or outwardly-bent resulting ligule sheet, by its angle of bend the ligule sheet is fixed in the car body side, on body cover, forms the air flue that air is come in and gone out whereby.

By inside or outwardly-bent, opened in the part hole that the ligule sheet is arranged the ligule sheet that on body cover, forms.If this hole is utilized as air flue, then can make the inside and outside discrepancy of air at body cover.Because be the air flue of this simple formation, so just passable with simple molding die.

The two-wheeled body cover structure of alternative plan of the present invention is characterized in that, at the leading section of ligule sheet hook portion is set, and by this hook portion hook is lived the car body side, the ligule sheet is fixed in the car body side.

Even in the relative occasion that staggers with the position of car body side of body cover, perhaps the occasion of body cover distortion also can lean on the angle of bend of ligule sheet or hook portion to absorb the position amount of staggering, and keeps the good state that tangles.

Accompanying drawing is simply described as follows:

Fig. 1 is the left side view of motor bike of the present invention.

Fig. 2 is the birds-eye view of motor bike of the present invention.

Fig. 3 is the decomposition diagram of vehicle frame of the present invention.

Fig. 4 is vehicle frame of the present invention, unit power plant, subsidiary engine collection case, toe board and covers left side on every side down and look cutaway view.

Fig. 5 is front vehicle frame of the present invention, driving engine, subsidiary engine collection case, toe board and covers birds-eye view on every side down.

Fig. 6 is the cutaway view along the 6-6 line intercepting of Fig. 4.

Fig. 7 is the cutaway view along the 7-7 line intercepting of Fig. 4.

Fig. 8 is the partial enlarged drawing of the mounting portion of the 2nd horizontal member of the present invention.

Fig. 9 is the pie graph of the rear lower structure of cover down of the present invention.

Figure 10 is the cutaway view of the rear lower structure of cover down of the present invention.

Figure 11 is the expression instruction diagram of the manufacturing process of cover down of the present invention.

Figure 12 is the distortion illustration of the rear lower structure of cover down of the present invention.

Below, embodiments of the invention are described with reference to the accompanying drawings.

Moreover, " preceding ", " back ", " left side ", " right side ", " on ", D score is by the direction of watching from the operator, Fr represents the front side, Rr represents rear side, L represents the left side, R represents the right side, CL represents car body central authorities (overall width center).In addition, accompanying drawing is watched by the direction of label.

Fig. 1 is the left side view of motor bike of the present invention.

Motor bike 10 is with vehicle frame 11, be installed on the front fork 13 of the vertical tube of front fork 12 of vehicle frame 11, be installed on the front-wheel 14 and the front fender apron 15 of front fork 13, be connected in the handlebar 16 of front fork 13, cover handlebar 16 handlebar cover 17 on every side, be installed on the subsidiary engine collection case 18 of the central lower curtate (low portion) of vehicle frame 11, be installed on the oscillating type unit power plant 21 (unitized construction of the anterior driving engine 22 and the transmission device 23 at rear portion) of the upper back of vehicle frame 11, be installed on the trailing wheel 24 at the rear portion of unit power plant 21, unit power plant 21 is hung on the posterior bumper 25 on the top, rear portion of vehicle frame 11, be installed on the collection case 26 on the top, rear portion of vehicle frame 11, can be installed on the vehicle seat 27 on the top of collection case 26 with opening and closing, be installed on the fuel tank 28 on the top, rear portion of vehicle frame 11 at the rear of collection case 26, and the body cover 30 that covers vehicle frame 11 is the scooter-type vehicle of main composition.

Body cover 30 is by the front shroud 31 of the front portion that covers vertical tube of front fork 12, cover leg guard plate 32, chaufeur that the shank of chaufeur uses and put toe board 33 that pin uses, be configured in the below of toe board 33 and cover the following cover 34 of bottom of vehicle frame 11 and the latter half of back cover 35 that covers vehicle frame 11 is formed.

Among the figure, 16a is a handle, the 41st, and forward mounting, the 42nd, head lamp, the 43rd, main support, the 44th, engine starting kick starter arm, the 45th, taillight, the 46th, rear mudguard, the 47th, back handle, the 48th, airfilter, the 49th, carburettor.

Fig. 2 is the birds-eye view of motor bike of the present invention, is illustrated in and has instrument 51, left and right sides back mirror 52,52, radiator 53, noise silencer 54 on the motor bike 10.Radiator 53 integrally is arranged on the right side of unit power plant 21.

Fig. 3 is the decomposition diagram of vehicle frame of the present invention.

Vehicle frame 11 is to cut apart tripartite vehicle frame of cutting apart in the below of toe board 33 (with reference to Fig. 1), front and back, promptly is divided into front vehicle frame 11F and back vehicle frame 11R and attached vehicle frame 81.

The vertical tube of front fork framves 61 that front vehicle frame 11F extends by vertical tube of front fork 12, from vertical tube of front fork 12, divide the pair of right and left main car frame 62,62 of two bursts of extensions and the rear closure member 63 of frame between the rear end of left and right sides main car frame 62,62 to form backward downwards from the lower end of front fork riser jacket 61, being to overlook the inblock cast vehicle frame of square shape framework substantially, for example is the foundry goods of aluminum alloy.Because be to overlook the square shape framework, so at the S1 of portion that has living space of central authorities.

So, left and right sides main car frame the 62, the 62nd, the member that extends back from vertical tube of front fork 12, the bottom forms to bevelled dip plane, back upper place in its back-end, this dip plane as anterior faying face 64,64.The horizontal member 63 in rear portion is the ㄩ character form components that open wide on front view, is the height setting of its overall width central portion is become than main car frame 62,62 lower persons.

Back vehicle frame 11R by pair of right and left main car frame 71,71, be erected at the closed front member 72 between the pars intermedia of fore-and-aft direction of left and right sides main car frame 71,71 and the horizontal member 73 in rear portion that is erected between the rear end of left and right sides main car frame 71,71 is formed, being the inblock cast vehicle frame, for example is the foundry goods of aluminum alloy.Left and right sides main car frame 71,71 forms to bevelled dip plane, the back lower place in the front end bottom, this dip plane as rear portion faying face 74,74.These main car frames the 71, the 71st, further extend back, extend upward, further extend back from its upper end from its rear end, the side sees the member of anti-zigzag substantially.

Vehicle frame 11 is by rear portion faying face 74,74 being overlapped in anterior faying face 64,64, leaning on bolt and nut 75 ... (... represent a plurality of, down with) combine and a back vehicle frame 11R integrally be incorporated into front vehicle frame 11F person.

Back vehicle frame 11R is by bolt and nut 85 ... attached vehicle frame 81 is incorporated into rearward end person.Attached vehicle frame 81 by about the collection case that erects form with the pipe link 83 of 82,82 on column with column 82,82 and contact collection case.The bound fraction of attached vehicle frame 81 is just by bolt and nut 85 ... the part that combines is located at the front and back that the back hangs installation portion 77, and double as is reinforced.The 78th, the suspension bracket fulcrum.

Fig. 4 is according to vehicle frame of the present invention, unit power plant, subsidiary engine collection case, toe board and cutaway view is looked in the left side around covering down.

Toe board 33 makes the flat front end of putting the 33a of foot be overlapped in the 32a of edge portion of the bottom of leg guard plate 32, and the rearward end of putting the 33a of foot is extended upward as rear wall parts 33b, comes the front portion of covering engine 22 by this rear wall parts 33b.

Back vehicle frame 11R can be installed on suspension bracket fulcrum 78 to unit power plant 21 via hanger plank 91 with swinging up and down.

The driving engine 22 of unit power plant 21 is the single cylinder watercooled engine of four stroke, be cylinder towards car body the place ahead substantially on even keel dispose.In detail, driving engine 22 is configured in cylinder head 92 rear of toe board 33 frontward, have high-tension coil 93 on cylinder head 92, (in the front portion of driving engine 22) has light-up plug 95 on cylinder head 94 simultaneously, with high tension cord 96 these high-tension coils 93 and light-up plug 95 coupled together.

Subsidiary engine collection case 18 is chests that top unlimited overlooking is substantially rectangle, be configured among the spatial portion S1 of front vehicle frame 11F, the bead 18a of front upper portion is carried on the bottom of vertical tube of front fork frame 61, install by bolt and nut 101, simultaneously the bead 18b of rear lower is carried on the horizontal member 63 in rear portion, install by bolt and nut 102.Owing to subsidiary engine collection case 18 is configured in the below of toe board 33,, can disposes subsidiary engine collection case 18 at an easy rate so effectively utilize the spacious space of toe board 33 belows.

In this figure, (1) is shown the storage battery 103 that is collected in the subsidiary engine collection case 18 is installed by strap 104, (2) cover bottom and the subsidiary engine collection case 18 of front vehicle frame 11F by means of cover 34 under the resin system.

Fig. 5 is front vehicle frame of the present invention, driving engine, subsidiary engine collection case, toe board and covers birds-eye view on every side down.

Front vehicle frame 11F is erected at the 1st horizontal member 66 between the front portion of left and right sides main car frame 62,62, and the 2nd horizontal member 67 is erected between the rear portion of left and right sides main car frame 62,62.The 1 2nd horizontal member the 66, the 67th, the press forming product of steel plate.

Toe board 33 is characterised in that, in the inside of subsidiary engine collection case 18, the case inspection socket 33c of main inspection storage battery 103 usefulness and the light-up plug inspection socket 33d of inspection light-up plug 95 usefulness is set.

Case inspection socket 33c lead to storage battery 103 roughly directly over, be the A/F roughly the same with the width of storage battery 103 arranged, have the total length substantially of crossing over subsidiary engine collection case 18 opening length overlook opening for rectangle, cover by lid 105.

Light-up plug inspection socket 33d be opened among the rear wall parts 33b of toe board 33, the inspection operation of light-up plug 95 is easy to the opening of locational rectangle substantially, cover by lid 106.

Fig. 6 is the cutaway view along the 6-6 line intercepting of Fig. 4.

Left and right sides main car frame the 62, the 62nd, have by the inboard of the CL of car body central authorities rise wall 62a, 62a and the outer outside rise wall 62b, 62b, the back side sees U font section member substantially, outside on even keel extends bead 62c, 62c from the upper end of outside wall 62b, 62b.

Subsidiary engine collection case 18, cross over total length and extend bead 18c, 18c from the outside on even keel of right and left upper sidepiece, the mating groove 18d, the 18d that extend before and after below these beads 18c, 18c, forming, make by mating groove 18d, 18d being matched with inboard upper end of playing wall 62a, 62a, be placed on 62,62 of left and right sides main car frames.

The 107th, throttle cable, the 108th, rear brake cable.

Toe board 33 from put the 33a of foot about end extend downwards the edge 33e of portion, 33e, simultaneously from putting following the face down outstanding 33f of installation base portion, the 33f of the 33a of foot.Under cover 34, end extends to the 33e of edge portion of toe board 33, the inboard of 33e to side plate 34b, 34b from about the base plate 34a.

Shown in this figure, above bead 62c, the 62c of left and right sides main car frame 62,62, the both ends, the left and right sides of the overlapping the 1st horizontal member 66, on these both ends, left and right sides, the 33f of installation base portion, the 33f of overlapping toe board 33 are with bolt 111,111 and nut 112,112 common both ends, the left and right sides and the 33f of installation base portion, the 33f that bead 62c, 62c and the 1st horizontal member 66 are installed regularly.Nut 112 is installed on the clip 113, by this clip 113 is enclosed within on the bead 62c, can locate.

And then, the 1st horizontal member 66, fixedly the auxiliary stay 68,68 of anti-substantially L font is seen at the back side on both ends, the left and right sides, with bolt and nut 114,114 side plate 34b, the 34b of cover 34 are installed on vertical piece 68a, the 68a of auxiliary stay 68,68 down.

Fig. 7 is the cutaway view along the 7-7 line intercepting of Fig. 4.

Cover 34 down and form cover bead 34c, the 34c that extends to the overall width CL of central authorities on even keel from the upper end of side plate 34b, 34b.The both ends, the left and right sides of left and right sides main car frame 62,62 the overlapping the 2nd horizontal member 67 on bead 62c, 62c, the 33g of installation base portion, the 33g of toe board 33 and the cover bead 34c, the 34c that cover 34 down use bolt.The details of relevant bolt structure describes with following Fig. 8.

Fig. 8 is the partial enlarged drawing according to the of the present invention the 2nd horizontal member mounting portion.

Cover bead 34c overlaps on the bead 62c of main car frame 62, and the bigger through hole 34d of up/down perforation is arranged.

The 2nd horizontal member 67 forms outstanding cup-shaped substantially boss portion 67a downwards on the end.The 67d of tube portion that boss portion 67a links to each other by the bottom 67b of the diameter shape of basin substantially slightly littler than through hole 34d, the horizontal end difference 67c that links to each other with the upper end of bottom 67b and with end difference 67c and diameter is bigger than through hole 34d forms.

Toe board 33 from putting the following outstanding 33g of installation base portion that faces down of the 33a of foot, is placed on the lower surface of this installation base 33g of portion on the bottom surface of the bottom 67b in the 2nd horizontal member 67.

The structure of the 2nd horizontal member mounting portion, 34c overlaps on the bead 62c of main car frame 62 the cover bead, thereon overlapping the boss portion 67a of the 2nd horizontal member 67, whereby end difference 67c is placed on the cover bead 34c, and then it is thereon overlapping toe board 33, whereby the lower surface of the 33g of installation base portion is placed on the bottom surface of bottom 67b, installs regularly jointly by bolt 115 and nut 116.Nut 116 is installed on the clip 117, by this clip 117 is enclosed within on the bead 62c, can locate.

Moreover the mounting structure of following cover 34 also can only be made a certain side in the structure of the structure of (1) bolt side plate 34b, 34b as shown in above-mentioned Fig. 6 and (2) bolt cover bead 34c, 34c as shown in above-mentioned Fig. 7～Fig. 8.In the occasion of mounting structure shown in Figure 6, cover bead 34c, the 34c of Fig. 7 are N/Rs.

And then this one illustrates, and puts among the 33a of foot, on the position of closing on the 2nd horizontal member 67, forms outstanding boss portion 33o downwards, and boss portion 33o is placed on the 2nd horizontal member 67, and is fixing with Screw 118 from the below simultaneously.What so, the 2nd horizontal member 67 can also support toe board 33 puts the 33a of foot.Equally, on the 1st horizontal member 66 shown in Fig. 6, also fixedly put the 33a of foot, can support with the 1st horizontal member 66 whereby and put the 33a of foot from the below with Screw.Thereby, we can say the 1 2nd horizontal member the 66, the 67th, support the support member (strenthening member) of toe board 33.

Fig. 9 (a)～(c) is the pie graph of the rear lower structure of cover down of the present invention.

(a) be the partial top view of the base plate 34a of following cover 34.

Cover the 34 otch 34f that overlook ㄩ font substantially that on base plate 34a, integrally form the cardinal extremity of the thinner wall section 34e, this thinner wall section of the ining succession 34e that extend along the overall width direction down, by the hole 34h that overlooks rectangle that surrounds the ligule sheet 34g that overlooks rectangle that obtains by thinner wall section 34e and notch 34f, cut in the front of ligule sheet 34g, the hook portion 34i of edge portion that is located at hole 34h and reinforced ribs 34j, the 34j that is located at the back side of hook portion 34i.

(b) be cutaway view, hook portion 34i is shown is from the upwardly extending section of ligule sheet 34g and see down hook that this hook closes on hole 34h along the b-b line of (a) intercepting.

(c) be the cutaway view of the c-c line intercepting on edge (a), be illustrated on the part of outside face of base plate 34a, form than other part thin-wall flute profile thinner wall section 34e, and the ligule sheet 34g that on thinner wall section 34e, ins succession, this ligule sheet 34g formed the plate of flat.Because, under resin system the cover 34 in, make the thin thickness of thinner wall section 34e than other parts, thus thinner wall section 34e ligule sheet 34g inside or outwardly-bent when elastic deformation, play a part hinge.

Figure 10 is the cutaway view of the rear lower structure of cover down of the present invention, the hinge for being out of shape with thinner wall section 34e is shown, it is crooked that ligule sheet 34g is covered downwards within 34, by its angle of bend, the hook portion 34i of the leading section that is located at ligule sheet 34g hung on the horizontal member 63 in rear portion of car body side.

So, hook portion 34i is hooked on vehicle frame 11, only depends on hook to live, just can be supported on the car body side to ligule sheet 34g, do not need to fix this part with bolt, Screw, rivet etc.And, even, also can lean on the angle of bend of ligule sheet 34g or hook portion 34i to absorb the position amount of staggering, keep good hook and live state covering the 34 relative occasions that stagger down with the position of the horizontal member 63 in the rear portion of car body side.Thereby, can assemble well as cover 34 under the resin system, being difficult to produce the body cover of making precision.And then, even cover 34 distortion down also can be kept good hook equally and live state.

By angle of bend ligule sheet 34g is hooked on the car body side, can forms the bigger air flue k that air is come in and gone out in otch 34f and the part of surrounding by otch 34f with regulation.

With smooth ligule sheet 34g is the deflector shield of guiding cooling air, be cooling air importing opening with the air flue 34k that opens on base plate 34a simultaneously, import with opening through a cooling air thus and to import engine cooling wind from the outside, whereby can cooled engine 22 (with reference to Fig. 4).Rear lower structure and cooling air guiding structure about following cover 34 also are shown in above-mentioned Fig. 4.

Figure 11 (a) and (b) are expression instruction diagrams of the manufacturing process of cover down of the present invention.

(a) illustrate and make patrix 121 and counterdie 122 matched moulds, cover 34 down is shaped.

(b) lower open die on a patrix 121 and the counterdie 122 is shown, takes out the following cover 34 that has been shaped.

Because at the otch 34f that covers on 34 the thinner wall section 34e that forms along thickness of slab direction depression, up/down perforation down, the hole 34h by surrounding the ligule sheet 34g that obtains, up/down perforation by thinner wall section 34e and otch 34f, the hook portion 34i of form of hooks down, so the mould of branch up and down with patrix 121 and counterdie 122 is a molding die, cover 34 down can be shaped.Thereby because just passable with simple molding die, the shape or the position of air flue are unrestricted, so the design-calculated degree of freedom improves.

Figure 12 (a)～(c) is the distortion illustration of the rear lower structure of cover down of the present invention.

(a) be depicted as and obtained overlooking half-elliptic ligule sheet 34g, formed the otch 34f of ㄩ font substantially.

(b) be depicted as and obtain overlooking trapezoidal ligule sheet 34g, formed the otch 34f of ㄩ font substantially.

(c) be illustrated in down replacement thinner wall section 34e formation sewing machine stitch shape hole line 34m on the cover 34.Sewing machine stitch shape hole line 34m ligule sheet 34g downwards within the cover 34 or outside when the bending, play a part can elastic deformation hinge.

Moreover in the embodiment of the invention described above, (1) motor bike 10 is not limited to scooter-type vehicle.

(2) ligule sheet 34g and air flue 34k, so long as be located on the body cover 30 just passable, be not limited to be located at down the cover 34 on.

(3) thinner wall section 34e is as long as form just passable on the inside face at least of body cover 30 or outside face.

(4) air flue 34k is so long as air discrepancy person is just passable, except sucking extraneous air in the body cover 30, also can make body cover 30 interior air are discharged.

(5) ligule sheet 34e, if by within the body cover 30 or outside crooked, play a part to guide the deflector shield of cooling air just passable, shape is arbitrarily.For example, with the direction that Inbound is set ligule sheet 34g abreast that goes out from air flue 34k.

The present invention brings into play following effect by above-mentioned formation.

First scheme of the present invention is owing to form substantially ㄩ font at the body cover of covering body Otch, inside or outwardly-bent resulting ligule sheet, the ligule sheet is fixed by its angle of bend In car body side, form the air flue that air is come in and gone out at body cover whereby, so can be at car body On the outer cover, the air flue of simple formation is set easily. And, with simple molding die just Passable, because shape or the position of air flue are unrestricted, so the free degree of design improves.

Alternative plan of the present invention is owing to arrange hook portion at the leading section of ligule sheet, by this hook Section hooks car body side, and the ligule sheet is fixed in car body side, so even at body cover and car body side The occasion that relatively staggers of position, also can lean on the angle of bend of ligule sheet or hook portion to absorb the position mistake The amount of opening is kept the good state that hooks. Thereby, can be being difficult to produce outside the car body of making precision Cover assembles well. And then, even the body cover distortion also can be kept good equally Hook state.

Claims (2)

1. the body cover structure of a motor bike, it is characterized in that: on the body cover of covering body, form the otch of ㄩ font substantially, inside or outwardly-bent resulting ligule sheet, by its angle of bend the ligule sheet is fixed in the car body side, on body cover, forms the air flue that air is come in and gone out whereby.

2. the body cover structure of the described motor bike of claim 1, it is characterized in that: the leading section at aforementioned ligule sheet is provided with hook portion, by this hook portion hook is lived the car body side, the ligule sheet is fixed in the car body side.

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