CN101155724A - Body frame for motorcycle - Google Patents

Body frame for motorcycle Download PDF

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Publication number
CN101155724A
CN101155724A CNA2006800109205A CN200680010920A CN101155724A CN 101155724 A CN101155724 A CN 101155724A CN A2006800109205 A CNA2006800109205 A CN A2006800109205A CN 200680010920 A CN200680010920 A CN 200680010920A CN 101155724 A CN101155724 A CN 101155724A
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CN
China
Prior art keywords
blanket
body frame
frame portion
motorcycle
pivot suspension
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2006800109205A
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Chinese (zh)
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CN101155724B (en
Inventor
藤原清隆
铃木和雄
山冈直次
武田谦三
朝稻勉
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Publication date
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Publication of CN101155724A publication Critical patent/CN101155724A/en
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Publication of CN101155724B publication Critical patent/CN101155724B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K11/00Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • B62K11/02Frames
    • B62K11/04Frames characterised by the engine being between front and rear wheels
    • B62K11/06Frames characterised by the engine being between front and rear wheels the frame being of single-beam type
    • B62K11/08Frames characterised by the engine being between front and rear wheels the frame being of single-beam type the beam being fabricated from sheet metal, e.g. forming fuel tank walls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00Cycle frames
    • B62K19/02Cycle frames characterised by material or cross-section of frame members
    • B62K19/04Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity
    • B62K19/08Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity made from sheet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00Cycle frames
    • B62K19/18Joints between frame members
    • B62K19/20Joints between frame members welded, soldered, or brazed

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

A body frame (F) for a motorcycle, comprising a pipe-like main frame part (2) and a pivotally supporting frame part (3) extending downward from the rear end part of the main frame part (2). The left side half parts of the main frame part (2) and the pivotally supporting frame part (3) are formed of a semi-cylindrical left side frame half body (27L) formed of a series of plate members, and the right side half parts thereof are formed of a semi-cylindrical right side frame half body (27R) formed of a series of plate members. The opposed end parts of these left side frame half body (27L) and the right side frame half body (27R) are connected to each other to form a continuous hollow structure. In this case, each of the frame half bodies (27L, 27R) is formed by pressing a plate-like blank connected body. Thus, the number of components can be reduced, welding workability can be increased, and the yielding of materials can be increased.

Description

Body frame for motorcycle
Technical field
The present invention relates to the improvement of body frame for motorcycle as described below, this motor bike extends downwards and the pivot suspension frame portion of supporting the pivot that is used to support back vent constitutes by the tubulose body frame portion that has a pipe at front end with from the rearward end of this body frame portion.
Background technology
Described body frame for motorcycle is known as disclosure described in Patent Document 1.
Patent documentation 1: No. 3548173 communique of Japan's special permission
In the patent documentation 1 disclosed motor two-wheel vehicle frame, constitute body frame portion, and on the left and right sides face of the rearward end of this body frame portion, the pair of right and left pivot suspension frame portion that constitutes by flat board by welded joint with tubing.Like this, if body frame portion that constitutes by tubing and the pivot suspension frame portion that constitutes by a plurality of sheet materials, because structure difference, therefore these structures have increased the body frame structure for automotive parts, on this basis, owing to do not have continuity between body frame portion and pivot suspension frame portion, therefore in their welding, expend man-hour.
Summary of the invention
The present invention finishes in view of the above problems, and its purpose is to provide and can reduces structure member and improve welding operation and the body frame for motorcycle of raising finished material rate.
To achieve these goals, be characterised in that of the present invention first body frame for motorcycle comprises: a tubulose body frame portion, it has the head pipe at front end; With pivot suspension frame portion, its rearward end from this body frame portion is extended downwards, supporting is used to support the pivot of back vent, wherein, left side half one of body frame portion and pivot suspension frame portion is made of a string half tubular left side frame halfbody of tabular blanket conjugant being implemented be stamped to form, this blanket conjugant is welded to one another by the second tabular blanket to the first tabular blanket that makes body frame portion side and pivot suspension frame portion side and forms, and, right side half one of body frame portion and pivot suspension frame portion is made of the right frame halfbody of tabular blanket conjugant being implemented be stamped to form of half a string tubular, this blanket conjugant is welded to one another by the second tabular blanket to the first tabular blanket that makes body frame portion side and pivot suspension frame portion side equally and forms, and the opposed end of these left frame halfbodies and right frame halfbody is engaged with each other into continuous hollow structure by welding.
And the present invention is on first feature base, and it second is characterised in that the thickness of slab of second blanket of each frame halfbody is set at, and is bigger than the thickness of slab of each first base.
In addition, the present invention is on first or second feature base, and it the 3rd is characterised in that, is formed with on the top of pivot suspension frame portion towards the left and right sides branching portion of oblique rear branch, and these branching portions are connected to each other via connecting panel.
In addition, on the basis of the present invention's arbitrary feature in first to the 3rd feature, it the 4th is characterised in that, be provided with the seat rail portion of the pair of right and left of hollow in the rear end, top of pivot suspension frame portion, described a pair of seat rail portion is that the opposed end of the outside half one that will be made of sheet material respectively and inboard half one is welded to one another and forms.
In addition, on the basis of the present invention's arbitrary feature in first to the 3rd feature, it the 5th is characterised in that, is provided with respectively the seat rail portion of the pair of right and left that is made of tubing in the rear end, top of pivot suspension frame portion.
In addition, the present invention is on the 4th feature base, and it the 6th is characterised in that, on each blanket conjugant, is welded with cooresponding the 3rd blanket of the outside half with each rail portion, when coming the forming supporter halfbody by punching press, and the described outside of moulding simultaneously half one.
In addition, on the basis of the present invention's arbitrary feature in first to the 6th feature, it the 7th is characterised in that, with about a side of frame halfbody serve as inboard and serve as the opposed end that these halfbodies are welded in the outside with overlapping each other with the opposing party.
In addition, the present invention is in first to the 7th feature on arbitrary feature base, and it the 8th is characterised in that a plurality of blankets that constitute each blanket conjugant engage by laser welding each other, implements MIG welding (gas metal-arc welding connects) in the end at its junction surface.
In addition, on the basis of the present invention's arbitrary feature in first to the 8th feature, it the 9th is characterised in that, on the whole a plurality of blankets that constitute each blanket conjugant, and the punching press datum hole that uses when all being provided with punching press.
In addition, on the basis of the present invention's arbitrary feature in first to the 9th feature, it the tenth is characterised in that, on the sidewall of frame halfbody, is processed to form by flange (burring) and carves the parts of having established negative thread at inner peripheral surface projection is installed.
In accordance with a first feature of the invention, about each frame halfbody be welded to one another the tabular blanket conjugant that forms by tabular second blanket and carry out punching press and constitute half a string tubular tabular first blanket that makes body frame portion side and pivot suspension frame portion side, therefore each frame halfbody yield rate that can obtain from sheet material, and owing to half tubular frame halfbody about making by welding engages, thereby make body frame portion and pivot suspension frame portion become continuous hollow structure, therefore can with about less structure member such as half tubular frame halfbody constitute vehicle frame, in addition, about the junction surface of half tubular frame halfbody continuous, and can easily carry out its welding operation.And, in the continuous hollow structure that constitutes by body frame portion and pivot suspension frame portion, dispersive stress and suppress stress concentration effectively, thus can cut down strengthening part and realize lightweight.
According to second feature of the present invention, the thickness of slab of second blanket is set at bigger than the thickness of slab of first base, thereby can give big intensity to pivot suspension frame portion, even therefore in pivot suspension frame portion, do not implement the special reinforcement of strengthening or reduce, also can bear big load, thereby make the further lightweight of vehicle frame from driving engine and back vent.
According to the 3rd feature of the present invention, adopt connecting panel, avoid the pull and stretch processing of the left right-hand part of pivot suspension frame portion with this, and can give big section factor, thereby effectively improve its rigidity pivot suspension frame portion.
According to the 4th feature of the present invention, making from body frame portion becomes continuous hollow structure to seat rail portion, thereby can cut down the structure member of vehicle frame, improves the yield rate of material, improves welding operation, and realizes that stress is decentralized.
According to the 5th feature of the present invention, the rear end, top in pivot suspension frame portion is provided with the pair of right and left seat rail portion that is made of tubing respectively, thereby easily adapts to the change of all size of seat rail portion.
In addition, according to the 6th feature of the present invention, each frame halfbody is made of first to the 3rd blanket, thereby can improve the yield rate of material, and as first, second and the 3rd blanket, corresponding to the function and the character of body frame portion, pivot suspension frame portion and seat rail portion, select the material material different, thereby can obtain light weight and performance-oriented vehicle frame with thickness of slab.
According to the 7th feature of the present invention, welding operation even also can keep certain under the state that two halfbodies turn upside down, thereby has been improved in the position of weld between two halfbodies.
According to the 8th feature of the present invention, can strengthen the end at the junction surface that forms by laser welding.
In addition, according to the 9th feature of the present invention, when each blanket conjugant of punching press, be embedded in by locating dowel pin in the datum hole of each blanket mould, thereby not only can give predetermined shape to each blanket, and can significantly alleviate the load burden on the junction surface that forms by laser welding.
In addition,, the welded nut that such in the past parts are installed usefulness need be set on the sidewall of vehicle frame, can help cost-cutting according to the tenth feature of the present invention.
Description of drawings
Fig. 1 is the lateral plan with motor bike of vehicle frame of the present invention.(first embodiment)
Fig. 2 is the block diagram of above-mentioned vehicle frame.(first embodiment)
Fig. 3 is the exploded perspective view of this vehicle frame.(first embodiment)
Fig. 4 is the lateral plan of this vehicle frame.(first embodiment)
Fig. 5 is the birds-eye view of this vehicle frame.(first embodiment)
Fig. 6 is the back view of this vehicle frame.(first embodiment)
Fig. 7 is the amplification view of the 7-7 line of Fig. 4.(first embodiment)
Fig. 8 is the amplification view of the 8-8 line of Fig. 4.(first embodiment)
Fig. 9 is the amplification view of the 9-9 line of Fig. 4.(first embodiment)
Figure 10 is the amplification view of the 10-10 line of Fig. 4.(first embodiment)
Figure 11 is the amplification view of the 11-11 line of Fig. 4.(first embodiment)
Figure 12 is the amplification view of the 12-12 line of Fig. 1.(first embodiment)
Figure 13 is the amplification view of the 13-13 line of Fig. 4.(first embodiment)
Figure 14 is the cutaway view of the 14-14 line of Figure 13.(first embodiment)
Figure 15 be about the material of each frame halfbody be the birds-eye view of blanket conjugant.(first embodiment)
Nomenclature
F: vehicle frame;
M: motor bike;
1: head pipe (head pipe);
2: body frame portion;
3: pivot suspension frame portion;
4: seat rail portion;
4A: the outside half one;
4B: inboard half one;
8: back vent;
9: pivot;
27L: left frame halfbody;
27R: right frame halfbody;
027L: corresponding to the blanket conjugant of left frame halfbody;
027R: corresponding to the blanket conjugant of right frame halfbody;
28: connecting panel;
31: the first blankets;
32: the second blankets:
33: the three blankets;
Junction surface between 34: the first and second blankets;
Junction surface between 35: the second and the 3rd blanket;
37~39: the punching press datum hole;
43: parts are installed projection;
43: negative thread.
The specific embodiment
Below based on preferred embodiment shown in the accompanying drawing embodiments of the present invention are described.
Embodiment 1
In Fig. 1, the vehicle frame F of motor bike M is by constituting as the lower part: from the beginning to manage 1 a tubulose body frame of the mode bevelled portion 2 that descends towards the rear; From the pivot suspension frame portion 3 that the rearward end of this body frame portion 2 is extended downwards; And the seat rail portion 4,4 of pair of right and left, above-mentioned rail portion 4,4 constitutes by the rake 4s that extends towards the back upper place from the top of this pivot suspension frame portion 3 with from the horizontally extending horizontal part 4h in the upper end of this rake 4s, utilize the Steering gear 6a of this pipe 1 supporting front fork 6, this front fork 6 supporting front-wheel 5f are connected with steering handle 7 in the upper end of this Steering gear 6a.In pivot suspension frame portion 3, be installed with pivot 9, will be supported to the back vent 8 that trailing wheel 5r carries out pivot suspension thus and swing up and down freely.Be positioned at the middle driving engine E of front-wheel 5f and trailing wheel 5r, be installed in body frame portion 2 and the pivot suspension frame portion 3, its power transmits to trailing wheel 5r via chain gearing 11.Between back vent 8 and seat rail 4,4, be folded with energy disperser 12.
Rake 4s from pivot suspension frame portion 3 to each rail portion 4, baggage container 15 is installed on their upper surface respectively, upper surface at horizontal part 4h also is equipped with Fuel Tank 16, and in the mode of the upper surface that can open and close baggage container 15 and Fuel Tank 16 the two-seat version chaufeur is attended a banquet 17 articulated joint on the leading section of baggage container 15.
In addition, vehicle body cover 18 is installed on vehicle frame F, this vehicle body cover 18 covers the cylinder portion of described vehicle frame F and driving engine E, is provided with the leg guard 19 of pair of right and left at the front end of this vehicle body cover 18.
In addition, among Fig. 1, symbol 20 is a front fender apron, and 21 is rear mudguard, and 22 is main pedal, and 23 is the back seat pedal, and 24 is main support, and 25 is side stand.
Below, described vehicle frame F is elaborated.
At first, in Fig. 2~Fig. 6, the outside half 4A of of the seat rail portion 4 in left side half one of the body frame portion 2 of vehicle frame F and pivot suspension frame portion 3 and left side, be to constitute by the half barrel-contoured left frame halfbody 27L that a string sheet metal forms, and, the outside half 4A of of the seat rail portion 4 on right side half one of body frame portion 2 and pivot suspension frame portion 3 and right side is to be made of the half barrel-contoured right frame halfbody 27R that a string sheet metal forms equally.In addition, in body frame portion 2 and pivot suspension frame portion 3, the opposed end of described left frame halfbody 27L and right frame halfbody 27R is engaged with each other by the MIG welding.Symbol 36 these MIG weld parts of expression.Like this, body frame 2 and pivot suspension frame portion 3 form a continuous hollow structure.
As shown in Figure 7 and Figure 8, in the time of between welding two halfbody 27L, 27R, serve as inboard and serve as the opposed end that two halfbody 27L, 27R are welded in the outside with overlapping each other with the opposing party with the side of these two halfbody 27L, 27R.Thus, the position of weld between two halfbody 27L, the 27R even also can keep certain under the state that two halfbody 27L, 27R are turned upside down, thereby is easy to carry out welding operation.
In addition, return among Fig. 2~Fig. 6, left and right sides branching portion 3a, 3a to oblique rear branch are formed at the top in pivot suspension frame portion 3, and described branching portion 3a, 3a are connected to each other to one via connecting panel 28.By adopting such connecting panel 28, can avoid the pull and stretch processing of the left right-hand part of pivot suspension frame portion 3, and give big section factor, thereby can effectively improve its rigidity pivot suspension frame portion 3.Joint between each branching portion 3a, 3a and the connecting panel 28 is undertaken by the MIG welding.
Punch forming has many strengthening ribs 29 that extend along left and right directions on described connecting panel 28, by these strengthening ribs 29 rigidity of connecting panel 28 and pivot suspension frame portion 3 is strengthened, and can suppress the generation of vibrating noise.
About 4,4 pairs in seat rail portion, the half barrel-contoured described outside half 4A of and the opposed end between half barrel-contoured inboard half 4B of separately implement the MIG welding and engage that (the MIG weld part is also represented with symbol 36 here.), thereby constitute hollow state (with reference to Figure 11); The front end of each outside half 4A of is welded in the rear end of described branching portion 3a, 3a, and the front end of inboard half 4B of is welded in the rear end of described connecting panel 28.At this moment, the position of the weld part of the front end of half 4A of and inboard half 4B of is set at along the length direction of seat rail portion 4 and staggers each other outside being positioned at.Thus, can relax stress concentration on the base end part of rail portion 4.
Each frame halfbody 27L, 27R all with tabular blanket conjugant shown in Figure 15 (hereinafter referred to as the welding blanket (Tailored Blanks).) 027L, 027R be as material.This welding blanket 027L, 027R make following three blankets butt joint and by laser welding and the parts of combination, about welding blanket 27L, 27R constitute with being mutually symmetrical: with the cooresponding first tabular blanket 31 of the left right-hand part of body frame portion 2; With the cooresponding second tabular blanket 32 of the left right-hand part of pivot suspension frame portion 3; With with cooresponding the 3rd tabular blanket 33 of the outside half 4A of of a cooresponding side's seat rail portion 4.By should about welding blanket 027L, 027R carry out punch process symmetrically, thereby constitute a string half tubular frame halfbody 27L in the left and right sides, 27R respectively.Among the figure, symbol 34 is illustrated in the junction surface of implementing laser welding between first and second blankets 31,32 and forming, and symbol 35 is illustrated in the junction surface of implementing laser welding between the second and the 3rd blanket 32,33 and forming.
On above-mentioned first~the 3rd blanket 31~33, be equipped with one or more punching press datum hole 37~39 (with reference to Fig. 4 and Figure 15) respectively, when punch process, be embedded in these datum holes 37~39 by locating dowel pin with mould, thereby the time to welding blanket 027L, 027R enforcement punch process, not only can give reservation shape to each blanket 31~33, and can significantly alleviate because laser welding and load burden that described junction surface 34,35 is caused.In the illustrated embodiment, the punching press datum hole 37 of first blanket 31 can utilize the installation through hole of described rod-like members 41, and the punching press datum hole 38 of second blanket 32, can utilize the installation through hole of described pivot 9.In addition, when punch process, preferably make the heat input side at the described junction surface 34,35 of carrying out laser welding, be disposed at and make its inboard towards vehicle frame F.
Like this, by each frame halfbody 27L, 27R are made of first~the 3rd blanket 31~33, thereby can improve the yield rate of material, and as first~the 3rd blanket 31~33, can be according to body frame portion 2, pivot suspension frame portion 3 selects material, the different material of thickness of slab with the function of seat rail portion 4 with character, thereby can obtain light weight and performance-oriented vehicle frame F.
And second blanket 32 is chosen to be thickness ratio first and the thick thickness (with reference to Fig. 9) of the 3rd blanket 31,33.Can give bigger intensity to pivot suspension frame portion 3 thus, thereby not need it is implemented special the reinforcement,, help to realize the further lightweight of vehicle frame F even perhaps reduce the big load of strengthening also can bearing from driving engine E and back vent 8.And, by about frame halfbody 27L, the vehicle frame F that 27R forms, from body frame portion 2 to pivot suspension frame portion 3 and then to seat rail portion 4,4, form continuous hollow structure, therefore can be with less structure member, promptly about half tubular frame halfbody 27L, 27R constitute vehicle frame F, and about the junction surface of half tubular frame halfbody 27L, 27R continuous, thereby can easily carry out its welding operation.In addition, if by body frame portion 2, the continuous hollow structure that pivot suspension frame portion 3 and seat rail portion 4,4 constitute, dispersive stress effectively then, thus can suppress stress concentration, can cut down strengthening part and realize lightweight.
In addition, return Fig. 2~Fig. 6, at the material of each frame halfbody 27L, 27R, promptly weld in the blanket, first blanket 31 that thickness of slab is different and second blanket 32 are owing to having implemented the junction surface 34 that laser welding forms, as shown in Figure 4, line of centers 40 with respect to body frame portion 2 tilts, and perhaps forms chevron shown in long and short dash line.Thus, section factor gradually changes to pivot suspension frame portion 3 from body frame portion 2, makes the stress concentration that produces on junction surface 34 obtain relaxing.In addition, on the end at junction surface 34, spread all over its inside and outside MIG of enforcement welding by laser welding.This reinforcement for these 34 ends, junction surface is an actv..That is, usually in the junction surface that forms implementing laser welding, in order to realize the homogeneity of weld strength, excision welding beginning portion after welding.Relative therewith, in the present embodiment, the MIG welding is implemented in the end at junction surface 34, thereby do not need excision welding beginning portion, and can improve the intensity at junction surface 34, and can improve the yield rate of material by laser welding.This method also is applicable to the junction surface 35 between the second and the 3rd blanket 32,33.
In body frame portion 2, its cross-sectional plane is a polygon as shown in Figure 7 and Figure 8, is octagon in the illustrated example.And its cross-sectional area increases towards the place ahead and rear in the length direction central portion minimum of body frame portion 2.Thus, in each one of body frame portion 2, can give and act on the big or small corresponding intensity of the moment of deflection on it, and can pass through the limit number of selected this polygon shape of cross section, and easily set the rigidity of body frame portion 2.The structure of such body frame portion 2, by with about the opposed end of half barrel-contoured halfbody 27L, 27R be joined together and be easy to realize.And, also can not be used between head pipe 1 and the body frame portion 2 and weld corner plate.
As Fig. 4 and shown in Figure 7, in the bigger leading section of the cross-sectional area of body frame portion 2, left and right sides wall links into an integrated entity via the rod-like members 41 that connects them, can strengthen the rigidity and the inhibition vebrato of the leading section of body frame portion 2 thus.And this rod-like members 41 utilizes them that for example described vehicle body cover 18 for example can be installed being formed with tapped bore 41a, 41a from its outstanding both ends of two lateral surfaces of body frame portion 2.
As Fig. 2~Fig. 4 and shown in Figure 8, on the left and right sides face of the rearward end of body frame portion 2, be welded with tabular engine lifting bracket 44.Therefore, this engine lifting bracket 44 is configured to be positioned at the front side than the junction surface 34 between first and second blankets 31,32.This engine lifting bracket 44 is used to support the top of described driving engine E.In addition, the antetheca of pivot suspension frame portion 3, than the connecting portion between pivot suspension frame portion 3 and the body frame portion 2 by under part open wide a pair of engine installation hole 46,46 about being provided with on the left and right sides wall of pivot suspension frame portion 3 near these opened portion 45 ground.These mounting holes 46,46 are used for the rear portion of the described driving engine E that inserts described opened portion 45 is installed.Like this, the load that acts on vehicle frame F from driving engine E disperses to be supported on body frame portion 2 and pivot suspension frame portion 3, thereby can the stress concentration of mitigation on described junction surface 34, and can utilize the intensity assembly of driving engine E as pivot suspension frame portion 3.On described engine lifting bracket 44, set up the stay 42 that is useful on the described vehicle body cover 18 of supporting.
The thickness of slab of above-mentioned tabular engine lifting bracket 44 is set at identical with the thickness of slab of pivot suspension frame portion 3.Therefore, the thickness of slab of the thickness ratio body frame portion 2 of engine lifting bracket 44 is big, thereby can obtain high-intensity engine lifting bracket 44.And because the shape more complicated of pivot suspension frame portion 3, therefore, can utilize this blanking acquisition engine lifting bracket 44, thereby can improve the yield rate of material second blanket 32 as its material being carried out produces large-scale blanking when die-cut.
As shown in figure 10, in each one of the sidewall of each frame halfbody 27L, 27R, be formed with by flange processing and carve the parts of having established negative thread 43a at inner peripheral surface projection 43 is installed, various parts can be threaded in projection 43 is installed.Therefore, do not need the existing welded nut that is used for the parts installation, thereby can help cost-cutting.And installing on the frame halfbody of projection 43 opposite sides with parts, be provided with the insertion fixed orifice 63 of the touch block 62 of supporting wire harness 61.
As Fig. 2, Fig. 4 and shown in Figure 5, about seat rail portion 4,4 therebetween on portion and the rearward end by a pair of being connected to each other in front and back across parts 57,58.And on the top of the rake 4s of each rail portion 4, be equipped with supporting station 59, on the projection 56,56 at this supporting station 59 and about being arranged on the rear upper surface of seat rail portion 4,4, described Fuel Tank 16 be installed.And they also are used to support describedly attends a banquet 17.
And, as Fig. 4 and shown in Figure 11, on the face of the left and right sides of each rail portion 4, being welded with carriage 60 to horizontal part 4h from rake 4s, this carriage 60 is used to support the upper end of described energy disperser 12.If make this carriage 60 have identical thickness of slab with the outside half 4A of and inboard half 4B of of each rail portion 4, then can utilize the blanking that carries out producing when die-cut at material to make carriage 60, thereby improve the yield rate of material the outside half 4A of and inboard half 4B of.
As Fig. 1 and shown in Figure 12, on the upper surface of above-mentioned connecting panel 28, rubber 52,52 is installed and mounting has described baggage container 15 across pair of right and left, the pair of bolts 53,53 that runs through these baggage container 15 diapires and rubber 52,52 is installed, screw and be anchored in the pair of right and left welded nut 54,54 that on the lower surface of connecting panel 28, is provided with, thereby make baggage container 15 elastic supports in connecting panel 28.At this moment, between the head and connecting panel 28 of each bolt 53,53, dispose the spacer ring 55,55 that is flush-mounted in bolt 53,53 peripheries, thereby avoid applying excessive clamp load rubber 52,52 is installed.Like this, connecting panel 28 has constituted the top of pivot suspension frame portion 3, and is also used as the support unit of baggage container 15, thereby can help simplified structure.
As Fig. 4 and shown in Figure 6, on the left and right sides wall of pivot suspension frame portion 3, be welded with the pivot 9 that runs through them, improved the intensity of pivot suspension frame portion 3 thus.Utilize being positioned at of this pivot 9 to protrude in the outer both ends of left and right sides wall of pivot suspension frame portion 3, described back vent 8 can be supported to swinging up and down freely.
As Fig. 4, Figure 13 and shown in Figure 14, on the left and right sides wall of the bottom of pivot suspension frame portion 3, inwards be formed with pair of brackets supporting convex 48,48 ' respectively highlightedly, the both ends of the pivot 47 of described pair of brackets supporting convex 48, the described main support 24 of 48 ' supporting, these bracket supports projectioies 48,48 ' are passed through flange machine-shaping.At this moment, on the bracket supports projection 48 in left side, be formed with one or relative a pair of flat wall 48a, this flat wall 48a and the tabular surface 47a that forms in the pre-position of pivot 47 peripheries are overlapping, thereby stop the rotation of above-mentioned pivot 47.Therefore, between pivot 47 and bracket supports projection 48, do not need to be provided with especially the spline parts, thereby can reduce number of components.
The right part of pivot 47 also is used to support brake pedal 49.In order to prevent that this pivot 47 from coming off, on the outer end of the outstanding pivot 47 in bracket supports projection 48 outsides to the left, spring cotter 50 or circlip are installed.
More than embodiments of the invention are illustrated, but the invention is not restricted to the foregoing description, in the scope that does not break away from main points of the present invention, can carry out various design modifications.For example under the situation that disposes the accessory of Fuel Tank 16 grades except that baggage container 15 above the connecting panel 28, connecting panel 28 also can be also used as the support unit of this accessory.The seat rail portion that also can replace in addition being divided into the left and right sides two-part seat rail portion 4 and use tubing to make.

Claims (10)

1. body frame for motorcycle, this body frame for motorcycle comprises: a tubulose body frame portion (2), it has head pipe (1) at front end; With pivot suspension frame portion (3), its rearward end from this body frame portion (2) is extended downwards, and supporting is used to support the pivot (9) of back vent (8), it is characterized in that,
Left side half one of body frame portion (2) and pivot suspension frame portion (3) is made of a string half tubular left side frame halfbody (27L) of tabular blanket conjugant (027L) being implemented be stamped to form, this blanket conjugant (027L) is welded to one another by tabular second blanket (32) to tabular first blanket (31) that makes body frame portion (2) side and pivot suspension frame portion (3) side and forms
And, right side half one of body frame portion (2) and pivot suspension frame portion (3) is made of the right frame halfbody of tabular blanket conjugant (027R) being implemented be stamped to form of half a string tubular (27R), this blanket conjugant (027R) is welded to one another by tabular second blanket (32) to tabular first blanket (31) that makes body frame portion (2) side and pivot suspension frame portion (3) side equally and forms
The opposed end of these left frame halfbodies (27L) and right frame halfbody (27R) is engaged with each other into continuous hollow structure by welding.
2. body frame for motorcycle according to claim 1 is characterized in that,
The thickness of slab of second blanket (32) in each frame halfbody (27L, 27R) is set at, and is bigger than the thickness of slab of each first blanket (31).
3. body frame for motorcycle according to claim 1 and 2 is characterized in that,
Be formed with on the top of pivot suspension frame portion (3) towards the left and right sides branching portion (3a, 3a) of oblique rear branch, these branching portions (3a, 3a) are connected to each other via connecting panel (28).
4. according to each described body frame for motorcycle in the claim 1~3, it is characterized in that,
Be provided with the pair of right and left seat rail portion (4,4) of hollow in the rear end, top of pivot suspension frame portion (3), described a pair of seat rail portion (4,4) is that the opposed end of the outside half one (4A) that will be made of sheet material respectively and inboard half one (4B) is welded to one another and forms.
5. according to each described body frame for motorcycle in the claim 1~3, it is characterized in that,
Be provided with respectively the seat rail portion (4,4) of the pair of right and left that constitutes by tubing in the rear end, top of pivot suspension frame portion (3).
6. body frame for motorcycle according to claim 4 is characterized in that,
On each blanket conjugant (027L, 027R), be welded with cooresponding the 3rd blanket of the outside half one (4A) (33) with each rail portion (4), when coming by punching press, with the described outside half one (4A) moulding simultaneously to frame halfbody (27L, 27R) moulding.
7. according to each described body frame for motorcycle in the claim 1~6, it is characterized in that,
With about a side of frame halfbody (27L, 27R) serve as inboard and serve as the opposed end that these halfbodies (27L, 27R) are welded in the outside with overlapping each other with the opposing party.
8. according to each described body frame for motorcycle in the claim 1~7, it is characterized in that,
The a plurality of blankets (31,32,33) that constitute each blanket conjugant (027L, 027R) engage by laser welding each other, and the MIG welding is implemented in the end of (34,35) at its junction surface.
9. according to each described body frame for motorcycle in the claim 1~8, it is characterized in that,
On the whole a plurality of blankets (31,32) that constitute each blanket conjugant (027L, 027R), the punching press datum hole that uses when all being provided with punching press (37,38,39).
10. according to each described body frame for motorcycle in the claim 1~9, it is characterized in that,
On the sidewall of frame halfbody (27L, 27R), be processed to form the parts installation projectioies (43) of having established negative thread (43a) at inner peripheral surface quarter by flange.
CN2006800109205A 2005-03-31 2006-03-23 Body frame for motorcycle Expired - Fee Related CN101155724B (en)

Applications Claiming Priority (3)

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JP2005101870A JP4154401B2 (en) 2005-03-31 2005-03-31 Body frame for motorcycle
JP101870/2005 2005-03-31
PCT/JP2006/305797 WO2006109482A1 (en) 2005-03-31 2006-03-23 Body frame for motorcycle

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CN101155724B CN101155724B (en) 2011-01-26

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CN102233922B (en) * 2010-04-26 2013-06-12 本田技研工业株式会社 Frame for motor-driven two wheel motorcycle
CN103072657A (en) * 2011-10-25 2013-05-01 铃木株式会社 Body frame structure of motorcycle
CN103072657B (en) * 2011-10-25 2015-05-27 铃木株式会社 Body frame structure of motorcycle
CN110809550A (en) * 2017-06-30 2020-02-18 本田技研工业株式会社 Vehicle with a steering wheel
CN110809550B (en) * 2017-06-30 2021-08-13 本田技研工业株式会社 Vehicle with a steering wheel
CN112644624A (en) * 2019-10-11 2021-04-13 雅马哈发动机株式会社 Method for manufacturing vehicle body frame

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BRPI0609481B1 (en) 2017-05-09
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BRPI0609481A2 (en) 2010-04-13
WO2006109482A1 (en) 2006-10-19

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