CN1130297C

CN1130297C - Body structure for small motorcycle

Info

Publication number: CN1130297C
Application number: CN 97112926
Authority: CN
Inventors: 末田健一
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 1996-06-05
Filing date: 1997-06-04
Publication date: 2003-12-10
Anticipated expiration: 2017-06-04
Also published as: TW392647U; CN1398751A; CN1267316C; ITTO970430A1; ITTO970430A0; IT1292321B1; CN1176205A

Abstract

To uniformly add the load from a floor panel to a front frame by integrally providing stays longitudinally extended to support the floor panel on both lateral sides of the front frame, respectively. A front frame 33 is formed so as to have a upward swollen U-shaped swollen part 33a in the lateral center part, and stays 37 are integrally provided on both the lateral lower ends of the swollen part 33a, respectively. Stepped parts 33b to be engaged with the inside edges of floor panels 27 are provided on both lateral sides of the front frame 33. The floor panels 27 are supported by the stays 37 so as to expose the swollen part 33a above the floor panel 27, respectively. Thus, the load from the floor panels 27 can be uniformly added to the front frame 33.

Description

The vehicle frame of motor scooter

Technical field

The present invention is the vehicle frame of the relevant motor scooter that is equipped with the anterior front vehicle frame that is provided with a pipe, this piping support front fork, and make it can controlling party to.

Background technology

At present, Xiang Guan vehicle frame is opened flat 1-311975 communique etc. and was done to disclose by open flat 7-156852 communique and spy as the spy.

Opened by the spy in the vehicle frame that flat 7-156852 communique discloses above-mentioned, the support that the article storage box bottom of the helmet etc. is placed in supporting is designed on the back vehicle frame that extends to the back upper place from the rear end of front vehicle frame.Therefore, to be disposed at article and to deposit the intensity of occupant's load on the seat of upper box part in order to guarantee to bear with aforementioned support to be sitting in, will guarantee necessary section factor with this support, the height of support (thickness) will increase like this, be that high the increasing with weight of seat increases thereby cause the article storage box upper position.

In addition, opened by the spy in the vehicle frame that flat 1-311975 communique discloses above-mentioned, a pair of is one group, is the front and back that two groups of support plates spaced apart are darted at the front vehicle frame left and right sides separately integratedly, base plate is being supported by these support plates, and front vehicle frame is in the load of the position at interval, front and back supporting from base plate.Therefore, be provided with the part of support plate, bigger loading is on front vehicle frame, front vehicle frame need have the intensity of bearing this big load, so, in above-mentioned existing vehicle frame, front vehicle frame is made to the tubulose of hollow, and be equipped with integratedly support plate front vehicle frame manufacturing and be not easy.

Summary of the invention

The present invention realizes that in view of such circumstances its first purpose is to provide and can control article storage box upper end height than the lowland, and improve the vehicle frame of the motor scooter of back frame strength; Second purpose be, provides the load that makes from base plate to act on equably on the front vehicle frame, makes front vehicle frame needn't have very high intensity, thereby make the vehicle frame of motor scooter of the simple structureization of front vehicle frame.

The vehicle frame of a kind of motor scooter of the present invention, its front vehicle frame and the back vehicle frame that extends to the back upper place of the rear end of this front vehicle frame is formed one, article storage box is installed on the vehicle frame of back certainly, the supporting front fork is arranged on the described front vehicle frame and make it can controlling party to head pipe, the rake that extends to the back lower place of this pipe and be connected in the rear end of this rake and be the back extension that on even keel rearward extends certainly; It is characterized in that: the back vehicle frame have around being provided with the front side wall, left and right sides sidewall and the rear wall that upwards erect and top open deposit recess, the aforementioned tangible one-tenth of left and right sidewall of depositing recess is deposited the interior plate of recess medial surface and is the outer panel of arranged spaced with it and is connected interior plate and the connecting panel of outer panel upper end outside interior plate, and forms the transverse shape that is the U font of lower openings; Article storage box is installed on the vehicle frame of back and at least a portion is placed in this and deposits in the recess.

In order to realize above-mentioned first purpose, the vehicle frame of motor scooter of the present invention will have the supporting front fork and the head of its may command direction is managed.The rake that extends to the back lower place from this pipe and be connected in the rear end of this rake and slightly be the front vehicle frame of the rear extension that on even keel rearward extends and certainly the back vehicle frame that extends to the back upper place of the rear end of this front vehicle frame be made to one, article storage box is installed on the vehicle frame of back; It is characterized in that: have the open recess of depositing in make progress upright sidewall and top to be set on the vehicle frame of back on every side, article storage box is installed on the vehicle frame of back and has at least a part to be placed into this and deposits recess in.

Under such structure, just can not increase supports articles storage box bottom part thickness and improve the rigidity of back vehicle frame; Do not gain in weight and than the i.e. height of seat of the upper end position of lowland control article storage box.

For realizing above-mentioned second purpose, the vehicle frame of motor scooter of the present invention, make the base plate that supports occupant's pin be installed in the front portion and have on the front vehicle frame of a pipe that supports front fork and make it the may command direction, it is characterized in that: the support plate of direction extension forwards, backwards and bearing plate is wholely set the left and right sides in front vehicle frame respectively.

The load that just can avoid acting on the support plate under such structure acts on the front vehicle frame partly, the load that acts on the front vehicle frame is distributed on approximate equality ground on the long distance of fore-and-aft direction, making front vehicle frame is the load that just is enough to support under the simple structure of opening shape from base plate at its transversal surface, and the integrally formed easier of support plate and front vehicle frame carried out.

With reference to accompanying drawing, understand above-mentioned and other purpose of the present invention, feature and advantage from the explanation of the embodiment that is fit to of following detailed description.

Description of drawings

Fig. 1 to Figure 12 shows one embodiment of the present of invention, wherein:

Fig. 1 is the lateral plan of motor scooter,

Fig. 2 is the planar view of motor scooter,

Fig. 3 is the lateral plan of vehicle body frame,

Fig. 4 is the planar view of vehicle body frame,

Fig. 5 is the amplification profile diagram along the 5-5 line of Fig. 1,

Fig. 6 is a vertical profile amplification profile shown in the arrow 6 of Fig. 1,

Fig. 7 is the cross sectional drawing along the 7-7 line of Fig. 6,

Fig. 8 is the cross sectional drawing along the 8-8 line of Fig. 6,

Fig. 9 is the skiagraph of the connecting portion of amplification demonstration posterior bumper and vehicle body frame,

Figure 10 is a vertical profile amplification profile shown in the arrow 10 of Fig. 1,

Figure 11 is a planar view shown in the arrow 11 of Figure 10,

Figure 12 is the amplification profile along the 12-12 line of Figure 10.

The specific embodiment

At first, in Fig. 1 and Fig. 2, vehicle body frame 15 front ends of this motor scooter have head pipe 16, its top have controlling party to 17 simultaneously bottoms supporting front-wheel W is arranged _FFront fork 18, this front fork 18 by aforementioned piping support and can controlling party to.

The engine installation 20 that is made of engine and stepless speed changing mechanism is equipped with the casing 21 of the change speed gear box of the crankcase of double as engine and stepless speed changing mechanism, this casing 21 is suspended on the vehicle body frame 15 via link mechanism 22, and posterior bumper 23 is provided between casing 21 and the vehicle body frame 15.In addition, trailing wheel W _RBe supported in the rearward end of aforementioned casing 21.

Vehicle body frame 15 is covered by car cover 24 except that a part, and this car body cover 24 is furnished with front shroud 25, feet stops 26, base plate 27 ..., end cover 28 ... with back cover 29, wherein: this front shroud 25 coats the front portion and the front-wheel W of head pipe 16 _FTop; This feet stops 26 is connected on the foot the place ahead that covers the occupant on the front shroud 25; The base plate 27 of supporting occupant pin ... link to each other with baffle plate 26, be configured in the left and right sides of vehicle body frame 15; At two base plates 27 ... the below coat the end cover 28 of car body both sides ... link to each other with front shroud 25 respectively, be connected on two base plates 27, be connected on base plate 27 ... on back cover 29 coat the left and right sides of rear bodies; The seat 30 that the occupant takes is provided on the back cover 29.

In Fig. 3 and Fig. 4, vehicle body frame 15 is made of the rearward end that subframe 32 is connected main car frame 31.Main car frame 31 is made of front vehicle frame 33 that has head pipe 16 integratedly and the back vehicle frame 34 that is connected in front vehicle frame 33 rear ends, by light alloy utilizations such as aluminum alloy castings or through the synthetic resin that long glass fiber and the isometric fiber reinforced material of carbonaceous long fibre are strengthened, form with integrally formed mode manufacturing.

Refer again to Fig. 5 as can be known: the rake 35 that front vehicle frame 33 is extended to the back lower place by head pipe 16 with from head pipe 16 and be connected in these rake 35 rear ends and slightly be the rear extension 36 that on even keel rearward extends and constitute, the left and right sides of the rake 35 and the rear extension 36 of this front vehicle frame 33 is extended and be arranged on integratedly to the support plate 37 of both sides protrusion to direction more longways forwards, backwards.Base plate 27 ... be fixedly supported upon these support plates 37 respectively ... above, utilize to connect respectively to be sticked in each support plate 37 ... following a plurality of nuts 38 ... be combined in these nuts 38 with twisting ... on bolt 39 ..., base plate 27 ... be connected support plate 37 ... on.

Front vehicle frame 33 has the bellying 33a that upwards heaves, transversal surface slightly is the U font at the central part of left and right directions and forms; Aforementioned support plate 37 ... respectively by connect integratedly be located at this bellying 33a about two lower ends.And, be respectively equipped with in the left and right sides of front vehicle frame 33 and make it and base plate 27 ... the 33b of platform portion that fastens of medial margin, base plate 27 is bearing in respectively on the support plate 37, and bellying 33a is exposed to the outside above this base plate 27.

In addition, a plurality of reinforced ribs 40 ... be wholely set below the rake 35 and rear extension 36 of front vehicle frame 33, lower end, the left and right sides in front vehicle frame 33 is positioned at left and right sides support plate 37 ... between the both ends of strengthening part 41 by with bolt 42 ... be fixed on two support plates 37 ... below.

Further, auxiliary is arranged on the front portion of front vehicle frame 33 integratedly with

support plate

43,44,45, storage battery 46 as auxiliary is installed in auxiliary with on the support plate 43, be installed in auxiliary with on the support plate 44 as the loudspeaker 47 of auxiliary, be installed in auxiliary with on the support plate 45 as the combined switch (do not have among the figure and show) of auxiliary.

Refer again to Fig. 6, Fig. 7 and Fig. 8 as can be known: back vehicle frame 34 is to extend the ground one from the rear end of front vehicle frame 33 to the back upper place to be connected with in the rear end of front vehicle frame 33, and the article storage box 49 of depositing the helmet 48 article such as (with reference to Fig. 1) is installed on this back vehicle frame 34.

Article storage box 49 is the open caisson shape (letter shape) in top, is made by synthetic resin, and the top of this article storage box 49 covers with seat 30.And seat 30 is provided on the back cover 29, and the top of article storage box 49 can be opened.

The upright front side wall 51 that makes progress, left and

right sides sidewall

52,52 and rear wall 53 are arranged on every side, and the recess 50 of depositing that top is open is set on the vehicle frame 34 of back, and at least a portion is put into and deposited recess 50 ground article storage box 49 is contained on the vehicle frame 34 of back.

Left and

right sides sidewall

52,52 has formation to deposit the interior plate 52a of recess medial surface respectively and is the outer panel 52b of arranged spaced and the connecting panel 52c between the upper end that is connected interior plate 52a and outer panel 52b in the interior plate 52a outside, form the transverse shape that slightly is the U font that open the bottom, front side wall 51 also forms the transverse shape that slightly is the U font that open bottoms equally with left and

right sides sidewall

52,52.

And, be between left and right in the front bottom end of depositing recess 50 and be provided with a pair of installation recess 54 every layout ..., be provided with in the bottom, rear end of depositing recess 50 simultaneously recess 56 be installed.On the other hand, be equipped with to embed in the front bottom end of storage box 49 recess 54 is installed ... installation protrusion 49a ..., this installs protrusion 49a ... used screwed part 57 ... be fastened on the vehicle frame 34 of back.The installation protrusion (do not have among the figure and show) that is darted at bottom, storage box 49 rear ends in addition also is fixed on the vehicle frame 34 of back with the state that embeds aforementioned installation recess 56.

From the respectively downward sagging engine suspension holdfast 58 in the vehicle frame front end left and right sides, back ... be arranged on integratedly on the vehicle frame 34 of back, engine installation 20 is suspended in engine suspension holdfast 58 by link mechanism 22 ... on.

Link mechanism 22 has by base portion 60a and leading section 60b and fuses and the coupling link 60 that forms through arm portions 60c, and base portion and leading section form and have the cylindrical shape of the axis that is parallel to each other.And base portion 60a is via a pair of rubber bush 62 ... be supported on first bolster 61, this first bolster crossbearer is fixed on the two engine suspension holdfasts 58; Leading section 60b goes up break-through has second bolster, 63, the second bolsters 63 to be bearing on the 21a of connecting cylinder portion that is located on engine installation 20 casings 21 via rubber bush 64.

The brake control lever 65 that extends to an opposite side with arm portions 60c is fixed on the base portion 60a of coupling link 60, is fixed with

braking rubber

66,67 on the upper and lower surface of these brake control lever 65 front ends.In addition, box-shaped portion 68 is wholely set the front end bottom at back vehicle frame 34, and

aforementioned braking rubber

66,67 is inserted into this box-shaped portion 68.

Based on such link mechanism, engine installation 20 can shake around the 2nd bolster 63; Simultaneously coupling link 60 can shake around first bolster 61 and constantly absorb vibrations from engine installation 20 by

rubber bush

62,64; The shaking of this coupling link 60, vibrate through 66,67 decay of braking rubber and after passing to vehicle frame 34 be on the vehicle body frame 15.

But, because back vehicle frame 34 is through casting or by the synthetic resin of strengthening with reinforcement materials such as long glass fiber and carbonaceous long fibres forming by light alloys such as aluminum alloys, form with integrally formed form manufacturing, so two engine suspension holdfasts 58 ... between the dimensional accuracy influence that can be out of shape and shrink and can be very not high.Therefore, at two rubber bushs 62 ... and engine suspension holdfast 58 ... between pack into and adjust size with pad 69 ... to solve two engine suspension holdfasts 58 ... between the low problem of dimensional accuracy.

In Fig. 9, Figure 10, Figure 11, near the position of depositing the left side wall 52 of recess 50, as suspended portion, posterior bumper installation portion 70 is by with the i.e. rear portion of back vehicle frame 34, rear portion from main car frame 31 to recessed form that be arranged on; The upper end that is provided in the posterior bumper 23 between main car frame 34 and the engine installation 20 through rubber pad 79,80 direct connections on posterior bumper installation portion 70.

Rear portion energy disperser 23 is by the bar 71b oil pressure damper 71 outstanding from cylindric bumper body 71a lower end and is located at the top of body 71a around oil pressure damper 71 and the spring coil 72 between the bar 71b bottom constitutes that the lower end of this rear portion energy disperser is the lower end of bar 71b is connected the casing 21 of engine installation 20 through axle 73 rear portion.

In the upper end of rear portion energy disperser 23 is the coaxial adapter shaft 74 of fixing in upper end of bumper body 71a, but is provided with the mounting hole 75 that makes adapter shaft 74 break-through on posterior bumper installation portion 70.And the rubber pad 79 of between the packing ring 76 on posterior bumper installation portion 70 and break-through adapter shaft 74 tops, having packed into, and sunk posterior bumper installation portion 70 is limiting the outside expansion of rubber pad on radial direction, and the bolt 77 that engages with packing ring 76 is tightened against the upper end of adapter shaft 74.Between the upper end of bumper body 71a and guiding parts 78 rubber pad 80 is housed in addition, this guiding parts 78 has the 78a of tube portion that embeds mounting hole 75 and forms the cap shape, and it is limiting the outside expansion of rubber pad 80 along radial direction.The upper end that is to say posterior bumper 23 via rubber pad 79,80 direct connections on rear portion energy disperser installation portion 70.

Subframe 32 have to the back upper place bevelled extend along fore-and-aft direction a pair of about

vertical vehicle frame

83,83, be to form by light alloy such as aluminum alloy or the synthetic resin strengthened through the long fibre reinforcement material; The

installation portions

85,85 that are arranged on two

vertical vehicle frame

83,83 two ends integratedly are connected the rearward end of the promptly back vehicle frame 34 of rearward end of main car frame 31; The a pair of

installation foot

86,87 in front and back that the rear end side of vehicle frame 34 is outstanding is arranged on the installation portion 85 integratedly backward.On the other hand, be located at the rearward end of vehicle frame 34 afterwards with aforementioned two installation feet, 86,87 cooresponding respectively support

protrusions

90,91 towards subframe 32 1 pleurapophysis, aforementioned each

installation foot

86,87 connects, is fixed on and supports the i.e. rearward end of back vehicle frame 34 of

protrusion

90,91 with

tie bolt

88,89 with the state on the

support protrusion

90,91 that is docked at corresponding its front end.

And, because rear portion at back vehicle frame 34, be equipped on be provided with posterior bumper installation portion 70 1 sides promptly the

support protrusion

90,91 in left side be configured in the front and back of posterior bumper installation portion 70, be on the main car frame 31 so subframe 32 is connected back vehicle frame 34 at posterior bumper installation portion 70 forward and backward.

Both sides and rear portion that subframe 32 surrounds Fuel Tank 92 dispose, and the leading section both sides of this Fuel Tank 92 are connected on the

installation portion

85,85 that is bearing in subframe 32.On the other hand,

Fuel Tank support

84,84 is connected with integratedly in the rear end of two vertical

vehicle frame portions

83,83, and the connection of the rearward end both sides of Fuel Tank 92 is bearing on two Fuel Tank supports 84,84.Back shield that nothing shows among the figure and taillight etc. also are installed on the subframe 32 in addition.

In addition, subframe 32 has the back handle 97 that the aft end face that connects two vertical

vehicle frame portions

83,83 forms door shape integratedly, and the rear end of seat 30 is supported in across the middle part, both sides of this back handle 97 and is set up on the all-in-one-piece support 98.

In Figure 12, two vertical

vehicle frame portions

83,83 of subframe 32 can be used as side grip and use, and the peristome 99 of holding these vertical vehicle frame portion uses in 83,83 o'clock is separately positioned on the both sides of back cover 29.

Effect that below should first embodiment describes: the front end in front vehicle frame has head pipe 16 integratedly, and this front vehicle frame 33 and back vehicle frame 34 are made into one, thereby form main car frame 31; On this main car frame 31, because support plate 37 ... integrally be located at the left and right sides of front vehicle frame 33 respectively, the base plate 27 of supporting occupant pin ... be supported in these support plates 37 ... on, so do not need to design vehicle frame with front vehicle frame 33 splits, thus the number of parts can be reduced; Simultaneously,, the auxiliary of storage battery 46, loudspeaker 47 and combined switch is wholely set in the front portion of front vehicle frame 33 with

support plate

43,44,45 because being installed, thus do not need to establish in addition the auxiliary support plate, thus can reduce number of components.

Because aforementioned support plate 37 ... extend more longways along fore-and-aft direction, and in the left and right sides of front vehicle frame 33 by integrated, so can avoid acting on support plate 37 ... on load act on partly on the front vehicle frame 33, acting on load on the front vehicle frame 33, can be distributed in to approximate equality the long distance of fore-and-aft direction last.Therefore, even front vehicle frame 33 is made open section form, also be enough to bear from base plate 27 ... load, and support plate 37 ... also just be more prone to the integrally formed of front vehicle frame 32.

In addition and since front vehicle frame 33 the central part of left and right directions have upwards heave, transversal surface roughly is the bellying 33a of U font, therefore can make the area of section of front vehicle frame 33 bigger, thereby improve the rigidity of this front vehicle frame 33.And, because strengthening part 41 is erected at lower end, the left and right sides support plate 37 that is positioned at front vehicle frame 33 ... between, thereby can further improve the rigidity of front vehicle frame 33.Further, because base plate 27 ... be bearing in support plate 37 respectively ... on, and it is exterior that the top of bellying 33a is exposed, and therefore, can do the feet stops 26 of car body cover 24 and base plate 27 lessly.

Because the upright front side wall 51 that makes progress is arranged on every side, left and

right sides sidewall

52,52 and rear wall 53, top is open deposits on the back vehicle frame 34 that recess 50 is set at main car frame 31, article storage box 49 parts are placed on this and deposit recess 50, and be installed on the vehicle frame 34 of back, therefore, the thickness that needn't increase the part of supports articles storage box 49 bottoms just can improve the rigidity of back vehicle frame 34, thereby can not gain in weight, and reduce the i.e. height of seat in article storage box 49 upper ends.

Though the upper end of posterior bumper 23 is connected vehicle frame 34 rear portions, back in addition, but because the left side wall 52 of depositing recess 50 has and forms the interior plate 52a that deposits recess 50 medial surfaces and at the outer panel 52b of interior plate 52a outside arranged spaced and be connected interior plate 52a and the connecting panel 52c of the upper end of outer panel 52b, and form under shed, roughly be the transverse shape of U font, and the upper end of posterior bumper 23 is connected on the vehicle frame 34 of back in the position near its left side wall 52, so can improve the installation rigidity of posterior bumper 23 for back vehicle frame 34.And because engine suspension holdfast 58 ... be arranged on integratedly on the vehicle frame 34 of back, therefore, can not wanted the support of the split that the engine suspension holdfast uses, thereby reduced number of components.

In addition, owing to the upper end of posterior bumper 23 is to descend the dress rubber pad 79,80 that is situated between respectively between the two sides to be connected directly on the posterior bumper installation portion of being located on the vehicle frame 34 of back 70 thereon, thereby the support that can not need to establish in addition split to be installing posterior bumper 23, thereby reduced components number.And, posterior bumper installation portion 70 to recessed and be designed in the back vehicle frame 31 the rear portion, can make the rigidity of posterior bumper installation portion 70 higher, simultaneously, because rubber pad 79 is embedded into to recessed posterior bumper installation portion 70, so, do not need to limit the guiding parts of this rubber pad 79, thereby can reduce number of components along the expansion of radial direction.

Though can act on the rear portion of back vehicle frame 34 from the load of upwards lifting of posterior bumper 23, but the subframe 32 that is subjected to the load of a part, Fuel Tank 92 from occupant's load of seat 30 and holds bearing load when being used as vertical vehicle frame portion 83 that side grip uses or back handle 97 car body upwards being drawn is connected on the vehicle frame 34 of back in the front and back of posterior bumper installation portion 70.Therefore, lift load and reciprocal load from posterior bumper 23 are all acted on the vehicle frame 34 of back in the front and back of posterior bumper installation portion 70, prevent the rear portion of the bigger loading of certain orientation at back vehicle frame 34, can increase the thickness of back vehicle frame 34 thus and set reinforced rib, thus expendable weight.

Further, because Fuel Tank 92, back shield and taillight etc. are installed on the subframe 32, and the subframe 32 that Fuel Tank 92, back shield and taillight etc. are installed can be assembled on the vehicle frame 34 of back, therefore when the assemble compact motor bike, can be assembled in Fuel Tank 92, back shield and taillight etc. in advance and be ready on the subframe 32, thereby improve packaging efficiency.

And, because subframe 32 has the vertical vehicle frame portion 83 of being used as that side grip uses integratedly ... with back handle 97, so, can split assemble these handles, thereby reduce number of components.

Embodiments of the invention more than have been described in detail in detail, but the present invention is not limited to the foregoing description, only otherwise break away from the present invention of the scope record of claim, just can carries out all design modifications.

Claims

1. the vehicle frame of a motor scooter, its front vehicle frame and the back vehicle frame that extends to the back upper place of the rear end of this front vehicle frame is formed one, article storage box is installed on the vehicle frame of back certainly, the supporting front fork is arranged on the described front vehicle frame and make it can controlling party to head pipe, the rake that extends to the back lower place of this pipe and be connected in the rear end of this rake and be the back extension that on even keel rearward extends certainly; It is characterized in that: the back vehicle frame have around being provided with the front side wall, left and right sides sidewall and the rear wall that upwards erect and top open deposit recess, the aforementioned tangible one-tenth of left and right sidewall of depositing recess is deposited the interior plate of recess medial surface and is the outer panel of arranged spaced with it and is connected interior plate and the connecting panel of outer panel upper end outside interior plate, and forms the transverse shape that is the U font of lower openings; Article storage box is installed on the vehicle frame of back and at least a portion is placed in this and deposits in the recess.

2. as the vehicle frame of the motor scooter of claim 1 record, it is characterized in that: the rear portion of back vehicle frame be provided with towards below recessed posterior bumper installation portion, the upper end of this posterior bumper by the rubber direct connection on this posterior bumper installation portion.

3. as the vehicle frame of claim 1 or 2 motor scooters of putting down in writing, it is characterized in that: the engine suspension holdfast is arranged on the vehicle frame of back integratedly.

4. as the vehicle frame of the motor scooter of claim 3 record, it is characterized in that: front vehicle frame forms by light alloy or through the synthetic resin of long fibre supporting material reinforcement.

5. as the vehicle frame of motor scooters of claim 1 or 2 records, it is characterized in that: front vehicle frame forms by light alloy or through the synthetic resin of long fibre supporting material reinforcement.