CN1047561C

CN1047561C - Frame structure for motor-scooter

Info

Publication number: CN1047561C
Application number: CN92103367A
Authority: CN
Inventors: 北川忠男
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 1991-04-12
Filing date: 1992-04-11
Publication date: 1999-12-22
Anticipated expiration: 2007-04-11
Also published as: JP2683165B2; CN1067012A; JPH0565088A

Abstract

This invention aims to provide a frame structure for a motor scooter, with which the actual capacity of a body functioning member located near the floor can be enlarged and the body frame be simplified and made light. A motor scooter is equipped with body functioning component in the floor part 14a approx. In the center of the body, and therein protruding members 24, 25, 56, 57 consisting of rigid material located below the body functioning component are provided in front of and behind the body functioning component 51 in such an arrangement as protruding downward from body frames 22, 23 located on both sides of the body functioning component.

Description

The body frame structure for automotive of motor scooter

The present invention relates to a kind of body frame structure for automotive of motor scooter.

In motor scooter, the needed parts of car body such as Fuel Tank usually are set on the base plate near the car body middle part, and vehicle frame below the needed parts of these car bodies by (seeing that the Japanese Patent spy opens clear 57-160785 number).

Yet in above-mentioned existing motor scooter body frame structure for automotive, because the bottom of vehicle frame by hull bottom plate, thereby parts such as vehicle frame and Fuel Tank are arranged superposed up and down, have so just limited the volume of Fuel Tank etc.In addition, it is complicated that the structure of vehicle frame itself also becomes, and its processing is not only time-consuming but also bother.

In view of the foregoing, the object of the present invention is to provide a kind ofly to have increased the actual volume of base plate vicinity position, and make that vehicle frame is oversimplified, the motor scooter vehicle frame of lightness the required parts of car body.

In order to realize purpose of the present invention, the front and back of the required parts of settling on the base plate near car body middle part of car body are provided with the lower end and are positioned at the more prodger of being made by rigid material of downside of the required parts of above-mentioned car body, and they are from being positioned at the vehicle frame projection downwards of the required parts of car body both sides.

Like this, because the required parts of car body and vehicle frame do not overlap, thereby can hold the required parts of the very big car body of lower volume on above-below direction.And, because the shape of vehicle frame itself does not need to make the pattern by the base plate bottom of car body, thereby realized the simplification and the lightness of vehicle frame itself.

Fig. 1 is a unitary side view of using two-wheeled motorcycle of the present invention;

Fig. 2 is the birds-eye view of this motor bike;

Fig. 3 is the enlarged side view of bottom parts;

Fig. 4 is the enlarged side view of Power Component front portion;

Fig. 5 is the lateral plan of main support part;

Fig. 6 is the base plate cutaway view along A-A line among Fig. 3;

Fig. 7 is the cutaway view of other significant points on the base plate.

The contrast accompanying drawing describes one embodiment of the present of invention below.Label 1 is the vehicle frame that extends to the rear portion from Vehicular body front (being the left side the figure) among Fig. 1, the 2nd, driving engine, the 3rd, power drive, the 4th, on wheel rim 4a, load onto the trailing wheel (drive wheel) of tire 4b, by driving engine 2, power drive 3 and trailing wheel 4 constitute a cover Power Component 5 together.This Power Component 5 is pivotably connected along the vertical direction by the bindiny mechanism 6 that is positioned at vehicle frame 1 rear portion, and is supported on the vehicle frame 1 by suspension 7.

In addition, 9 is handlebars among Fig. 1, the 10th, on wheel rim 10a, load onto the front-wheel of tire 10b, the 11st, be contained in the front fork of vehicle frame 1 upper support front-wheel 10, the 12nd, but the vehicle seat that is provided with hinge bonded assembly switch, 13 are arranged on the box that holds the helmet of 12 times directions of vehicle seat, the 15th, cover the case on vehicle frame 1 and Fuel Tank etc., the 16th, tiltedly cover rear mudguard in trailing wheel 4 back upper places, the 17th, battery, the 18th, lubrication box, the 19th, freeing pipe.

Above-mentioned vehicle frame 1 comprises front fork tube 21, begin from these front fork tube 21 bottoms to the extend back recurvate slightly vertical tube 22 in its lower end and at 22 times bonded assemblys of vertical tube slightly upward of oblique below, and the roughly horizontal vehicle seat front portion that extends rearward to of dividing right and left since then, the limit frame 23 that the tubing of the extension upward that recedes is again since then again made.Limit frame 23 also has as described later to driving engine 2 supplied with cooling air, and the gas channel effect of air is provided to airfilter 32.

That is, the lower end of vertical tube 22 is connected the middle part of transverse tube 24, the two ends of this transverse tube 24 and above-mentioned about the limit frame 23 that extends obliquely upward join.The rear end of limit frame 23 base plate is connected with faces the transverse tube 25 that is the U font, respectively establishes about the recess horizontal component 25a of transverse tube 25 goes up to connect short tube 26.Connect short tube 26 by the internal communication of conduit 27 with the drive chain case of driving engine 2.Thereby by the air intake suction air process transverse tube 24 that vertical tube 22 upper rear are provided with, limit frame 23 is in the drive chain case of transverse tube 25, connection short tube 26, conduit 27 inflow engines 2.

And label 35 is for being arranged at the opening on the car body case 15, the air suctiton inlet part of the airfilter 32 that will illustrate below this opening constitutes.At opening 35 posterior medials of car body case 15, the conduit 36 of connection opening 35 is housed, the outlet of this conduit 36 is joined with the above-mentioned short tube 30 that is connected that is installed on limit frame 23 rear sloping portions 23 approximate mid-section.Then be provided with other connection short tube 31 (see figure 2)s in the oblique front lower place at connection short tube 30 places that limit frame 23 is installed.This connection short tube 31 is connected on the admission port of airfilter 32 by flexible conduit 41.Because airfilter 32 is made up of case of air cleaner 43, lid 44 and the cleaning element that is loaded between the two, thereby case of air cleaner 43 installs and fixes by bolt on above-mentioned Power Component 5 upper brackets and Power Component 5 and is integral.Therefore the outlet of airfilter 32 is connected on the above-mentioned driving engine 2 of carburettor 50 and downstream direction configuration thereof by conduit 49.

From above-mentioned opening 35 inlet air inflow catheters 36, then import limit frame 23, flexible conduit 41, airfilter 32, shown in arrow among the figure, do not clean a side through cleaning one side (shown in Figure 2) of cleaning element to the case of air cleaner 43 from what cover that 44 inboard forms, and after conduit 49 injects carburettor 50, infeed in the driving engine 2 at this and fuel mix.

As shown in Figure 3, at the outer peripheral flange dish 51a that is fixing Fuel Tank 51 on the base plate 14a of above-mentioned car body approximate mid-section by bolt 52a on the carriage 23b that is installed in limit frame 23 and nut 52b.Fuel Tank 51 comprises casing 52 and goes up the case lid 53 of airtight setting.Case lid 53 rear portions are provided with fuel inlet 54, and this place is by being sealed by stopper 55.

Fuel Tank 51 is by above-mentioned limit frame 23, and vertical tube 22 and the various parts that are installed on the

vehicle frame

22,23 surround.That is, a recess 52c is formed at the casing 52 preceding bottoms of Fuel Tank 51, is embedded with the transverse tube 24 that is arranged at above-mentioned vertical tube 22 bottoms herein.And above-below direction middle part, Fuel Tank 51 side surrounds by being arranged on its outer limit, above-mentioned left and right sides frame 23, and the front lower place, side of Fuel Tank 51 is blocked by the carriage 56 that is welded on the limit frame 23.The Fuel Tank rear portion is then surrounded by the above-mentioned U font transverse tube 25 that traverses between above-mentioned limit frame 23.And be arranged at intervals with about the approximate mid-section of transverse tube 25 and overlook prodger triangular in shape 57 as shown in Figure 2.The lower end of the lower end of above-mentioned vertical tube 22,

transverse tube

24,25, each lower end of carriage 56 and prodger 57 all is in the lower position of Fuel Tank 51 lower ends, determines the size of each parts thus.And, lower cover 58 is fixed up by nut 59a being screwed on the bolt 59 that is arranged on the carriage of the anterior left and right sides with the form that covers at limit frame 23,

transverse tube

24,25, carriage 56 and prodger 57 downsides, and lower cover 58 rear portions is installed on the car body by the nut 61 of on the bolt 61a that is provided with on the carriage 60 of limit frame 23, screwing on from the outside.Have, the opening 58a that also is provided with corresponding carriage 56 belows on the lower cover 58 is connected with carriage 56 again.In addition, above-mentioned

transverse tube

24,25, carriage 56 and prodger 57 are by the steel contour rigidity material manufacture identical with vertical tube 22 and limit frame 23.Moreover the bottom surface of Fuel Tank 51 is above the rough line D in expression road surface that is connected between carriage 56 and the prodger 57.

As shown in Figure 4 and Figure 5, front end bottom at above-mentioned Power Component 5, being equipped with the pin 71 by Power Component 5 projections is the support 70 that freely rotate at the center, this support 70 relies on the spring 72 of its top hook 70a and tensioning setting between the spring hanger 5a that forms on the Power Component 5, when erecting process, be in the trend that anticlockwise direction rotates, when the process of withdrawal, be in the trend that clockwise direction rotates.

In addition, be formed with Power Component 5 in the front portion of support and join, the limit bracket 70 circular arc block 73 that anticlockwise direction rotates when erecting state, this block 73 embeds in the recess 56 that forms on Power Components 5 and joins with its inside face.And 74 are the rubber blocks that are provided with on support 70, the 75th, be used for the spring lock of bracket locked, and the 76th, starter pedal.

Because, in above-mentioned design of mini frame of motorcycle, the arranged outside of Fuel Tank 51 block the limit frame 23 of this Fuel Tank 51,

transverse tube

24,25 and carriage 56, the prodger 57 of upward settling, Fuel Tank 51 is not overlapped at above-below direction with respect to limit frame 23 grades, and the height on the base plate 14a that defines height is utilized, thereby can the bigger Fuel Tank 51 of configuration capacity.

And, because limit frame 23 itself does not need the crooked shape that covers Fuel Tank everywhere, but form bag retaining, therefore to Fuel Tank by other parts of welding on limit frame 23, the structure of limit frame 23 is simplified, and its result has reached easy to manufacture and purpose lightness.

In the above-described embodiment, the required parts of car body that on car body approximate mid-section base plate 14a, are provided with, what it exemplified is Fuel Tank, but this can not to become be qualification to required parts, for example can also be other parts such as battery and lubrication box.

Adopt required parts of car body of the present invention and vehicle frame not to overlap on above-below direction to explanation of the present invention as can be seen according to above-mentioned, the volume of the feasible required parts of car body that can hold increases.In addition, the shape of vehicle frame itself needs not to be by the car body bottom position, thereby reaches simple structureization and weight-saving good result.

Claims

1. motor scooter, comprise, be located near the required parts of car body (51) on the base plate of car body middle part, extend an opposite side frame (23) of coming and about the required parts of this car body (51), rearward extending along the direction of cardinal principle level in the expansion with the place ahead from above-mentioned car body, the body frame structure for automotive of this kind motor scooter is characterised in that

Described limit frame (23) is located near the upper wall portions of the required parts of above-mentioned car body (51); so that the required parts of above-mentioned car body (51) bloat downwards from above-mentioned limit frame (23); and include in the front and back of the required parts of above-mentioned car body (51) at least and have respectively than the more downward side-prominent lower end of the required parts of above-mentioned car body (51); the prodger of making by rigid material (57; 57); be provided with lower cover (58) in the below of the required parts of above-mentioned car body (51); this lower cover with respect to carriage (56; 56) position of bottom is provided with opening (58a; 58a); so that carriage (56) is pressed close to lower cover, thereby can play the effect of the protection member that serves as the required parts of above-mentioned car body (51).