CN1196618C - Small-sized motorcycle type vehicle - Google Patents

Abstract

A small-sized motorcycle type vehicle attaches a step floor and an undercover to a frame by a simple configuration and a small number of part items. A scooter type vehicle is constituted in such a way that a head pipe 12 and a pair of left and right main frames 62, 62 extending backward from the head pipe are formed as an integrally cast frame 11F and a step floor 33 for resting a foot and an undercover arranged below the step floor 33 are attached to the left and right main frames 62, 62. A first cross member 67 and a second cross member 67 are detachably attached between the left and right main frames 62 and 62. The step floor 33 and the undercover 34 are attached to the first and second cross members 66, 67.

Description

Small size motorcycle

The present invention relates to small size motorcycle, particularly about pedal bottom plate and following cover mounting structure.

About the pedal bottom plate of small size motorcycle and the technology of the installation constitution of cover down, such as in the real fair 5-41117 communique of Japanese Patent " fuel tank apparatus of small size motorcycle " (prior art), showing to some extent.

Above-mentioned prior art, Fig. 1 and Fig. 3 according to this communique, (quote the numbering that communique is recorded and narrated at tread plate 7, down together) left and right sides framework pipe 8,8 is passed in the below, fixing installation bracket 9,10 on the top of this framework pipe 8,8, with bolt tread plate 7 is fixed on the carriage 9,10, and other carriages (no code name) are fixed on the sidepiece of framework 8,8, will play backplate 18 to be fixed on this carriage with bolt.Like this, just tread plate 7 and following backplate 18 can be installed on the body structure.18 one-tenth of following backplates cover the cover of tread plate 7 belows.

In above-mentioned prior art,, the carriage 9,10 on top and the carriage of sidepiece must be set on body structure F for tread plate 7 and following backplate 18 are installed.Thereby carriage quantity increases, but also must carry out carriage is fixed to the work of body structure, and there is much room for improvement.

Therefore purpose of the present invention promptly is, provide can with simple formation and a spot of part with pedal bottom plate with cover the technology that is installed on the framework down.

For achieving the above object, the small size motorcycle of the 1st invention, the head pipe is the integrally casting framework with from the beginning managing the pair of right and left main truss that rearward extends, and, the pedal bottom plate that is used for step is installed on the main truss of the left and right sides and be disposed at this pedal bottom plate below following cover, it is characterized in that, between the main truss of the left and right sides, can crossbeam be installed with unloading, pedal bottom plate is installed on this crossbeam and covers down.

Owing to pedal bottom plate being installed on demountable crossbeam and covering two parts down, therefore, can save pedal bottom plate and following cover are installed to the installation component of using on the casting framework.Thereby, can simply constitute with a spot of part pedal bottom plate and following cover are installed on the casting framework.

The small size motorcycle of the 2nd invention is characterized in that, has the installation portion of installing under the legging be used to cover the chaufeur shank on the crossbeam.

Because therefore the installation component of crossbeam double as legging bottom, no longer needs to be used for the legging bottom is installed on the other installation component of casting on the framework; Also no longer need to install the work of this installation component.

The small size motorcycle of the 3rd invention is characterized in that, below pedal bottom plate, is disposing the subsidiary engine containing box that is used to take in subsidiary engines such as battery and relay.

The clearance envelope of pedal bottom plate below can be effectively utilized like this, and the subsidiary engine containing box can be more easily disposed.

The small size motorcycle of the 4th invention is characterized in that, at pedal bottom plate rear configuration driving engine, has ignition spark plug in the front portion of this driving engine, and will check that the ignition spark plug inspection socket of this ignition spark plug is located at the pedal bottom plate rear portion.

Even because pedal bottom plate is arranged, also can check ignition spark plug, be easier to so the ignition spark plug inspection is become from the ignition spark plug inspection socket.

Brief Description Of Drawings

Fig. 1 is the left side view of small size motorcycle of the present invention; Fig. 2 is the birds-eye view of small size motorcycle of the present invention; Fig. 3 is the exploded perspective view of body structure of the present invention; Fig. 4 is body structure of the present invention, power part, subsidiary engine containing box, pedal bottom plate and covers left cutaway view on every side down; Fig. 5 is preceding framework of the present invention, driving engine, subsidiary engine containing box, pedal bottom plate and covers planar view on every side down; Fig. 6 is the 6-6 cutaway view of Fig. 4; Fig. 7 is the 7-7 cutaway view of Fig. 4; Fig. 8 is the present invention's second crossbeam mounting portion detail drawing; Fig. 9 is the section-drawing of the sidepiece of cover down supporting construction of the present invention; Figure 10 is the section-drawing of the rear support of cover down structure of the present invention; Figure 11 is a case inspection socket of the present invention left side cutaway view; Figure 12 is the left cutaway view of ignition spark plug inspection socket of the present invention; Figure 13 is a subsidiary engine containing box birds-eye view of the present invention; Figure 14 is the exploded perspective view of preceding framework of the present invention, first, second crossbeam, subsidiary engine containing box, legging, pedal bottom plate, following cover.

Below by the description of drawings embodiments of the invention.

" preceding ", " back ", " left side ", " right side ", " on ", D score follows the direction that the operator sees; Fr represents the front side, and Rr represents rear side, and L represents the left side, and R represents the right side, and CL represents vehicle body central authorities (overall width center).In addition, drawing is to point to the figure that sees along symbol.

Fig. 1 is the left side view of small size motorcycle of the present invention.

Small size motorcycle 10 is main motor bikes by following component set-up: body structure 11, be installed on the front fork 13 on the head pipe 12 of body structure 11, be installed on front-wheel 14 and front fender apron 15 on the front fork 13, be linked to the handle 16 of front fork 13, cover handle 16 handle cover 17 on every side, be installed on the subsidiary engine containing box 18 of the central lower curtate (low bottom parts) of body structure 11, be installed on the oscillating type power part 21 (composite construction of anterior driving engine 22 and rear portion transmission device 23) of the upper back of body structure 11, be installed on the trailing wheel 24 at power part 21 rear portions, with the back suspender 25 of power part 21 suspensions in the top, rear portion of body structure 11, be installed on the containing box 26 on the top, rear portion of body structure 11, can be installed on the vehicle seat 27 on containing box 26 tops with opening and closing, be installed on the Fuel Tank 28 on the top, rear portion of body structure 11 at containing box 26 rears, cover the vehicle body cover 30 of body structure 11.

Vehicle body cover 30 by the front shroud 31 of the front portion that covers head pipe 12, the legging 32 that is used to cover the chaufeur shank, chaufeur place pedal bottom plate 33 that pin uses, be disposed at pedal bottom plate 33 belows and cover the following cover 34 of body structure 11 bottoms, the latter half of back cover 35 that covers body structure 11 constitutes.

Among the figure, 16a is a handle, the 41st, and front overhang suspension member, the 42nd, headlight, the 43rd, main support, the 44th, engine starting recoil arm, the 45th, taillight, the 46th, rear mudguard, the 47th, back handle, the 48th, airfilter, the 49th, carburetter.

Fig. 2 is the birds-eye view of small size motorcycle of the present invention, shown in the figure, has instrument 51 on small size motorcycle 10, left and right sides catadioptre 52,52, radiator 53, silencer 54.Radiator 53 is integrally formed at the right side of power part 21.

Fig. 3 is the exploded perspective view of body structure of the present invention.

Body structure 11 is in the below of pedal bottom plate 33 (with reference to Fig. 1), framework 11F, back framework 11R before being divided into, with secondary framework 81 3 parts.

Before framework 11F by head pipe 12, from the beginning manage 12 tube support 61 that extend downwards, from the beginning two strands of pair of right and left main trusss 62 that rearward extend are divided in the lower end of tube support 61,62, frame is in left and right sides main truss 62, rear portion crossbeam 63 between 62 rear ends constitutes, being to overlook roughly to be square shape frame shape integrally casting framework, for example is aluminium alloy castings.Owing to be to overlook to be the square shape frame, portion S1 in the central has living space.

Like this, from the beginning left and right sides main truss 62,62 for managing 12 members that rearward extend, and the bottom has formed to bevelled dip plane, back upper place in its back-end, and this dip plane is anterior faying face 64,64.Rear portion crossbeam 63 just is being considered as the コ character form component of upper opening, must be lower than main truss 62,62 with the height setting of its overall width central portion.

Back framework 11R by pair of right and left main truss 71,71, be set up in the anterior crossbeam 72 between left and right sides main truss 71,71 fore-and-aft direction pars intermedias, the rear portion crossbeam 73 that is set up between left and right sides main truss 71,71 rear ends is constituted.Being the framework of integrally casting, for example is aluminium alloy castings.Forming to bevelled dip plane, the back lower place in the front end bottom of left and right sides main truss 71,71, this dip plane becomes rear portion faying face 74,74.This main truss 71,71 further rearward extends, and extends upward from its rear end, extends to the back upper place more from its upper end, forms the member that side-looking roughly becomes the word of falling Z shape.

Body structure 11 coincides with its rear portion faying face 74,74 on the anterior faying face 64,64, with bolt, nut 75 ... (... represent a plurality of, together following) make its combination, back framework 11R and preceding framework 11F are combined as a whole.

With bolt, nut 85 ... secondary framework 81 is incorporated into the rearward end of back framework 11R.Secondary framework 81 by about the containing box that erects with pillar 82,82 with link containing box and support 83 with the binding of 82,82 on pillar and constitute.The bound fraction of secondary framework 81, promptly with bolt, nut 85 ... the part that combines is located at the front and back of back suspender installation portion 77, has booster action concurrently.The 78th, hang pivot branch.

Fig. 4 is body structure of the present invention, power part, subsidiary engine containing box, pedal bottom plate and covers left cutaway view on every side down.

The front end of the flat step 33a of portion of pedal bottom plate 33 and the 32a of lower rims portion of legging 32 coincide, and simultaneously, the 33a of step portion rearward end is extended upward and become rear wall parts 33b, with the front portion of this rear wall parts 33b covering engine 22.

By suspension plate 91 power part 21 can be installed in the suspension pivot branch 78 of back framework 11R with swinging up and down.

The driving engine 22 of power part 21 is 4 stroke single-cylinder watercooled engine.Cylinder roughly becomes on even keel disposing towards ground, vehicle body the place ahead.Specifically, the skull 92 of driving engine 22 is disposed at pedal bottom plate 33 rears towards the place ahead, have high-tension coil 93 on the skull 92, simultaneously, cylinder head 94 has ignition spark plug 95 on (driving engine 22 front portions), with high tension cord 96 high-tension coil 93 and ignition spark plug 95 is coupled together.

Subsidiary engine containing box 18 is the frameworks that roughly become rectangle of overlooking of top opening, among the spatial portion S1 of framework 11F, with the bottom that its front upper portion flange 18a is equipped on a tube support 61, installs with bolt, nut 101 before being disposed at; And its rear lower carriage 18b is equipped on rear portion crossbeam 63, install with bolt, nut 102.Owing to the below that subsidiary engine containing box 18 is disposed at pedal bottom plate 33, can effectively utilize the free space of pedal bottom plate 33 belows; And can more easily dispose subsidiary engine containing box 18.

Also illustrate in Fig. 4: (1) installs the battery 103 that is accommodated in the subsidiary engine containing box 18 with bundling belt 104; (2) by covering 34 bottom and the subsidiary engine containing boxs 18 that covered preceding framework 11F down.

Fig. 5 is preceding framework of the present invention, driving engine, subsidiary engine containing box, pedal bottom plate and covers birds-eye view on every side down.

Between the front portion of the left and right sides of preceding framework 11F main truss 62,62, set up first crossbeam 66; Between the rear portion of its left and right sides main truss 62,62, set up second crossbeam 67.First, second lateral member the 66, the 67th, the plastic working drip molding of steel plate.

The characteristics of pedal bottom plate 33 are, are provided with inspection socket 33c and 33d in the inside of subsidiary engine containing box 18, and its raising middle flask inspection socket 33c is mainly used to check battery 103; Ignition spark plug inspection socket 33d is used for checking ignition spark plug 95.

Case inspection socket 33c roughly directly over battery 103, has the A/F roughly the same with the width of battery 103, and has the opening length of the total length that roughly strides across subsidiary engine containing box 18, overlooks to be rectangular aperture, covers with covering 105.Take off and cover 105, can safeguard, check battery 103 at an easy rate.

Ignition spark plug inspection socket 33d probably becomes rectangular aperture, in pedal 33 rear wall parts 33b, is opened on the position of easily ignition spark plug 95 being checked, covers with covering 106.

Owing to driving engine 22 is configured in the rear of pedal bottom plate 33, driving engine 22 front portions have ignition spark plug 95, to be used to check that the ignition spark plug inspection socket 33d of this light-up plug 95 is located at the rear portion of pedal bottom plate 33, so even pedal bottom plate 33 is arranged, also can check ignition spark plug 95, safeguard easily, check from the inspection socket 33d of ignition spark plug.

Fig. 6 is the 6-6 cutaway view of Fig. 4.

The inboard that left and right sides main truss 62,62 has the close vehicle body CL of central authorities erects wall 62a, and 62a erects wall 62b with the outside in the close outside, and 62b is a member of seeing the section that roughly becomes the U font from the back side; Erect wall 62b from the outside, there are flange 62c, 62c in the upper end of 62b to foreign side's horizontal-extending.

Subsidiary engine containing box 18, extend flange 18c from top, left and right sides sidepiece on even keel to foreign side along total length, 18c, at this flange 18c, the following embedded grooves 18d that is forming direction extension forwards, backwards of 18c, 18d, by making embedded grooves 18d, 18d is embedded in the inboard and erects wall 62a, the upper end of 62a, and make it be equipped on 62,62 of left and right sides main trusss.Like this, owing to supporting subsidiary engine containing box 18, the load of subsidiary engine containing box 18 is fully supported with left and right sides main truss 62,62.

Subsidiary engine containing box 18 leaves the CL of vehicle body central authorities right-hand or left configuration by diagram.Owing to subsidiary engine containing box 18 sides of keeping right or left configuration, between the sidepiece of main truss 62 and subsidiary engine containing box, formed gap S2, can in the S2 of this gap, pass accelerator steel rope 107 or rear brake steel rope 108.

Pedal bottom plate 33, end extends the 33e of edge portion downwards from about the 33a of step portion, and 33e simultaneously, is extruded with mounting boss 33f downwards, 33f below the 33a of step portion.And cover 34 down, and from about its base plate 34a, to hold until pedal bottom plate 33 33e of edge portion, side plate 34b is being extended in the inboard of 33e, 34b.

Also illustrate among Fig. 6, first crossbeam 66 that can be installed on 62,62 of left and right sides main trusss has pedal 33 and the effect of the installation component of cover 34 down concurrently with unloading.

Know clearly it, at left and right sides main truss 62,62 flange 62c, overlapping the both ends, the left and right sides of first crossbeam 66 on the 62c, overlapping the mounting boss 33f of pedal bottom plate 33 on these both ends, left and right sides, 33f, with bolt 111,111 and nut 112,112 with flange 62c, 62c, first crossbeam both ends, 66 left and right sides and the mounting boss 33f, 33f tightens in the lump and installs.Nut 112 is installed on the clamping plate 113, clamping plate 113 is inserted in flange 62c goes up the enforcement location.Also shouldn't clamping plate 113.

Fixing the back side at the both ends, the left and right sides of first crossbeam 66 and seeing the supplemental support 68,68 that slightly becomes down L shaped, will play the side plate 34b of cover 34 with bolt and nut 114,114,34b is installed on the vertical piece 68a of supplemental support 68,68, on the 68a.

Fig. 7 is the 7-7 cutaway view of Fig. 4, and it shows second crossbeam, 67 double as pedal bottom plates 33 that can be installed on 62,62 of left and right sides main trusss and the situation of playing the installation component of cover 34 with unloading.

Specifically, formed from its side plate 34b in the following cover 34, the upper end of 34b is to the horizontally extending shroud flange 34c of the overall width CL of central authorities, 34e.At the flange 62c of left and right sides main truss 62,62, the 33g of installation base portion of last overlapping the both ends, the left and right sides of second crossbeam 67 of 62c, pedal bottom plate 33, the 33g and the shroud flange 34c of cover 34 down, 34c, and use bolt.About the detailed construction of bolt, in following Fig. 8, illustrate.

Fig. 8 is the detail drawing of the second crossbeam mounting portion of the present invention.

Shroud flange 34c is overlapped on the flange 62c of main truss 62, and it has the bigger through hole 34d of diameter that runs through up and down.

Forming the outstanding boss portion 67a that roughly becomes cup-shaped downwards in the end of second crossbeam 67.Boss portion 67a is made of bottom 67b, stage portion 67c, the 67d of tube portion.Wherein, bottom 67b roughly becomes the dish shape, and diameter is littler than through hole 34d; Stage portion 67c becomes horizontality, and links to each other with the upper end of bottom 67b; The 67d of tube portion links to each other with stage portion 67c, and diameter is bigger than through hole 34d.

Pedal bottom plate 33 is being given prominence to the 33g of installation base portion downwards below the 33a of its step portion, the lower surface of the 33g of this installation base portion is equipped on the bottom surface of bottom 67b of second crossbeam 67.

Being configured to of the second crossbeam mounting portion: shroud flange 34c is overlapped on the flange 62c of main truss 62, the boss portion 67a of overlapping thereon second crossbeam 67 again, thus with stage portion 67c mounting on shroud flange 34c; And then overlapping in the above again pedal 33, and the lower surface mounting that makes the 33g of installation base portion is then tightened installation with bolt 115 and nut 116 on the bottom surface of bottom 67b.Nut 116 is installed on the clamping plate 117, these clamping plate 117 is inserted in implements the location on the flange 62c.And, can not want clamping plate 117 yet.

In Fig. 8, also illustrate: in the 33a of step portion,, this boss portion 33o mounting on second crossbeam 67, and is fixed from the below with Screw 118 in formed outstanding boss portion 33o downwards in the face of the position of second crossbeam 67.Like this, second crossbeam 67 can support the 33a of step portion of pedal bottom plate 33.Equally, on first crossbeam 66 shown in Figure 6, also can be from the below with the fixing 33a of step portion of Screw, thereby with first crossbeam, the 66 supporting step 33a of portion.The supporting member (tension member) of supporting pedal bottom plate 33 of so just having we can say first, second crossbeam 66,67 one-tenth.

Like this, shown in Fig. 6～8, first, second crossbeam 66,67 double as pedal bottom plates 33 of supporting pedal bottom plate 33 and the installation component that covers 34 down.Its result just no longer needs to be used for pedal bottom plate 33 and the following cover 34 independent installation components that are installed on the body structure 11, the erection work that does not also need to install this installation component.And, reduced installation component on first, second crossbeam 66,67 owing to pedal bottom plate 33 is installed and covers 34 down.Thereby, can pedal bottom plate 33 and cover 34 down be installed on the body structure 11 with simple formation and less part number.

Fig. 9 is the sidepiece of a cover down supporting construction section-drawing of the present invention; It shows the sidepiece that will cover 34 down and is supported on situation on the main truss 62 chimericly.

Particularly, covering the sidepiece supporting construction down is: on the flange 62c of main truss 62, form jut 62d along vehicle body fore-and-aft direction (direction in promptly showing among the figure) as prescribed spacing, the shroud flange 34c that covers 34 down is overlapped on the flange 62c, and it is chimeric and hang over jut 62d to offer embedded hole 34e on the shroud flange 34c again.

Like this, can play cover 34 to be supported on main truss 62, and not need this part to be fixed with bolt, Screw, rivet etc. owing to only join jut 62d with embedded hole 34e extension.So can reduce number of parts, make the installation exercise transfiguration easy, and cost-cutting.

And the installation constitution of following cover 34 also can and use (1) only to construct the structure that is installed on the main truss 62 with mounting shown in Fig. 9; (2) pass through first, second crossbeam 66,67 with the structure of bolt on main truss 62 shown in above-mentioned Fig. 6～8.

Figure 10 (a) and (b) are section-drawings of the rear support of cover down structure of the present invention.

(a) the integrally formed thin wall shape hinge 34f that is located at play the base plate 34a rear portion of cover 34 of expression, the hinge arms sheet 34g that rearward extends from hinge 34f and the hook portion 34h that gives prominence to upward from the rear end of hinge arms sheet 34g.

(b) illustrate and make hinge arms sheet 34g elastic deformation upward, with hook portion 34h collude be hung on before situation on the rear portion crossbeam 63 of framework 11F.Only can play the rear lower of cover 34 to be supported on the main truss 62, and just not need to fix this part with bolt, Screw or rivet etc. with such extension that colludes.In addition, by making hinge arms sheet 34g elastic deformation upward, on base plate 34a, offered cooling air importing peristome 34m.Import engine cooling wind from the outside by importing with peristome 34m by this cooling air, but cooled engine 22 (with reference to Fig. 4).

About under cover 34 rear supports structures and cooling air and import to construct and also be shown among above-mentioned Fig. 4.

Figure 11 is a case inspection socket of the present invention left side cutaway view, and it shows; Have embedded hole 33i on the anterior edge 33h of portion of case inspection socket 33c, 105 leading section 105a inserts among this embedded hole 33i with lid, simultaneously, will cover 105 rearward end 105b with Screw 119 and be fixed on the 33j of rear portion edge portion of case inspection socket 33c.If unload Screw 119, can unload lower cover 105.

Figure 12 is the left cutaway view of ignition spark plug inspection socket of the present invention, it shows: the anterior edge 33k of portion at ignition spark plug inspection socket 33d has embedded hole 33m, the leading section 106a of lid 106 is inserted among this embedded hole 33m, simultaneously, the hook portion 106c of lid 106 rearward end 106b is hooked on the 33n of edge portion on top, ignition spark plug inspection socket 33d rear portion fixes.Unload hook portion 106c, can take off and cover 106.

Figure 13 is the birds-eye view of subsidiary engine containing box of the present invention, and it shows: the front upper portion at subsidiary engine containing box 18 is provided with flange 18a, is provided with carriage 18b in its rear lower, is provided with flange 18c, 18c about at an upper portion thereof.

Also express in Figure 13: taking in subsidiary engine containing box 18: as the battery 103 of small size motorcycle subsidiary engine, battery is with regulating control 121,3 relays 122,123,124, and 2 wire fuses 125,126 and radiator are with water storage tank 127.Like this, because various subsidiary engines 103,121～117 are accommodated in the subsidiary engine containing box 18 in the lump, various subsidiary engines 103,121～127 are installed below pedal bottom plate 33 are become extremely easy, thereby improved the fitting operation performance.

Among the figure, 18e is a battery outer wall portion, and 18f, 18g, 18h are the relay installation portions, and 18i, 18i are the wire fuse installation portions, and 18j is the regulating control installation portion, and 18k is the electric wiring installation portion.

Figure 14 is the exploded perspective view of preceding framework of the present invention, first, second lateral member, subsidiary engine containing box, legging, pedal bottom plate, following cover, is in order to be more readily understood each figure that constructs of explanation in above-mentioned Fig. 3～13; And, saved part in order easily to see drawing clearly.

The installation constitution of 32 one-tenth of leggings following (1)～(3).

(1) 32a of edge portion from the rear portion, bottom of legging 32 extends left and right sides locating dowel pin 32b downwards, 32b, and with this locating dowel pin 32b, 32b is embedded in the pin-and-hole 66a of first crossbeam 66, among the 66a, can be with legging 32 location.

(2) 32a of edge portion from rear portion, legging 32 bottom rearward extends left and right sides protrusion 32c, 32c, and with this protrusion 32c, 32c is installed on the arm 68b of the supplemental support 68,68 of first crossbeam 66, on the 68b with Screw 131,131.

(3) extend joint portion, left and right sides 32d from the preceding face forward of legging 32,32d will cover the engagement pawl 34j that forms on the back side of 34 front wall portion 34i down, and 34j mounts in this joint portion 32d, on the 32d.

(4) from covering the rearward outstanding bellying 34k in 34 the front wall portion 34i back side down, this bellying 34k is installed on the tube support 61 with Screw 132.

Because first crossbeam 66 has the arm 68B as the installation portion that legging 32 bottoms are installed, 68B does not just need to be used to install the independent installation component of legging 32; Certainly also just do not need to install the work of this installation component; Thereby before can the bottom of legging 32 being installed to simple formation and less part number on the framework 11F.

In addition in the embodiment of the invention described above,

(1) two frameworks of cutting apart before and after body structure 11 is not limited to also can be integral truss.In addition, body structure 11 also can be the framework of welding construction or the integrally formed synthetic resin framework of thermoplastic base resin that strengthens with glass fibre except being the casting framework.

(2) as unloading of body structure 11 be installed on the crossbeam of 62,62 of left and right sides main trusss, do not limit above-mentioned first, second crossbeam 66,67 shown in Figure 5 yet; Do not limit simultaneously 2 of front and back yet; Installation site and installation constitution also can be arbitrarily.

(3) also have, about position, shape and the size of inspection socket 33c and ignition spark plug inspection socket 33d, as long as easily battery 103 and ignition spark plug 95 are safeguarded, checked.

The present invention can produce following effect by above-mentioned consisting of.

The 1st invention, owing between the main truss of the left and right sides, crossbeam can be installed with unloading, and at this horizontal stroke Pedal bottom plate and lower cover are installed, so can save for pedal bottom plate and lower cover are installed on casting on the beam Make the installation component on the framework. Thereby, can will ride with simple formation and less number of components Base plate and lower cover are installed on the casting framework.

The 2nd invention is because crossbeam has the bottom that the legging that is used for covering driver shank is installed Installation portion, just no longer need for the other installation component that legging is installed, also no longer need into Row is installed the work of this installation component. Thereby, can incite somebody to action with simple formation and a small amount of part The legging bottom is installed on the casting framework.

The 3rd invention is used for taking in battery and relay owing to disposed below pedal bottom plate Deng the subsidiary engine containing box of subsidiary engine, can effectively utilize the free space of pedal bottom plate below, also can To dispose relatively easily the subsidiary engine containing box.

The 4th invention since with engine configurations in the pedal bottom plate rear, the anterior tool of this engine Ignition spark plug is arranged, and will be located at pin for the ignition spark plug inspection socket that checks this ignition spark plug Step on the base plate rear portion, so even pedal bottom plate is arranged, also can be from ignition spark plug inspection socket inspection igniting fire Hua Sai, Inspection become and are easier to.

Claims (3)

1. small size motorcycle, on this vehicle, the pair of right and left main truss that head pipe and pipe from the beginning rearward the extend casting framework that becomes one; And the legging of pedal bottom plate being installed, having been covered and be used to cover the chaufeur shank down, this pedal bottom plate is used for step on the main truss of the aforementioned left and right sides, and this time cover then is disposed at the below of this pedal bottom plate; It is characterized in that, between the main truss of the aforementioned left and right sides, crossbeam can be installed with unloading, and aforementioned pedal bottom plate, aforementioned cover and aforementioned legging down are installed on this crossbeam.

2. the small size motorcycle of recording and narrating by claim 1 is characterized in that, is disposing the subsidiary engine containing box that is used to take in subsidiary engines such as battery and relay below aforementioned pedal bottom plate.

3. the small size motorcycle of recording and narrating by claim 1, it is characterized in that, at aforementioned pedal bottom plate rear configuration driving engine, have ignition spark plug in this driving engine front portion, be provided with the ignition spark plug inspection socket that is used to check this ignition spark plug at the rear portion of pedal bottom plate.

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