CN1410313A - Frame for pedal-type two-wheel motorcycle - Google Patents
Frame for pedal-type two-wheel motorcycle Download PDFInfo
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- CN1410313A CN1410313A CN 02143570 CN02143570A CN1410313A CN 1410313 A CN1410313 A CN 1410313A CN 02143570 CN02143570 CN 02143570 CN 02143570 A CN02143570 A CN 02143570A CN 1410313 A CN1410313 A CN 1410313A
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- cross member
- aforementioned
- vehicle frame
- rear pole
- down pipe
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Abstract
The invention provides a body frame of a scooter type motorcycle, wherein a pair of right and left brackets for supporting a power unit can be welded with good productivity. Brackets 25 for supporting a power unit are provided at a pair of right and left backstays of a body frame 2. Cross members 43 for connecting both of the right and left brackets are laterally crosslinked between the brackets 25 for supporting the power unit.
Description
Technical field
The vehicle frame of pedal-type two-wheel motorcycle of leading section of right a pair of rear pole supporting one oscillating power device the present invention relates to keep left.
Background technology
Always, the vehicle frame of pedal-type two-wheel motorcycle has the down pipe that extends backward the front portion from vertical tube of front fork to step portion and the pair of right and left rear pole that extends back of the rearward end of a down pipe from then on downwards.This rear pole is located K/UP backward at the rear portion of aforementioned step portion, and from then on a curve extends to rear vehicle by the below of vehicle seat.
In addition, near the carriage of aforementioned rear pole Weld-supporting engine installation aforementioned curve, on this carriage via can being the leading section that the link supporting of axial rotation ground supporting the one oscillating power device with the overall width direction.The rearward end of engine installation is via the rearward end of shock absorption device suspension in aforementioned rear pole.Engine installation supporting is with the connecting bridge of carriage and aforementioned connecting rod, bolster inserted run through the axis hole of carriage, via damping rubber the lug boss of the leading section of connecting rod is supported on this bolster.
For the engine installation supporting is welded in rear pole with carriage, the axis hole of two sides' carriage is positioned on the same axis parallel with the overall width direction, so as installing connecting rods accurately, and on the fore-and-aft direction of two carriages (axis hole), locate, so that engine installation is equipped on correct position.The location of this fore-and-aft direction is moved carriage and is carried out, so that consistent with design value from the length of vertical tube of front fork to two carriage (axis hole).
Summary of the invention
; the vehicle frame of the pedal-type two-wheel motorcycle always of Gou Chenging as mentioned above; because the location of two tray chambers about being necessary to carry out simultaneously when the engine installation supporting is welded in rear pole with carriage; with the location of these two carriages, must reduce such problem with special anchor clamps isoproductivity so exist to the fore-and-aft direction of rear pole.
The present invention makes in order to address this is that, and its 1st purpose is to provide a kind of can weld the vehicle frame of pair of right and left engine installation supporting with the pedal-type two-wheel motorcycle of carriage in high productivity ground.
In addition, always, vehicle frame as pedal-type two-wheel motorcycle, there is following vehicle frame: down pipe is set from vertical tube of front fork extension downwards behind the mediad of overall width direction, and the rear pole of connection pair of right and left midway at this down pipe is connected in the rear end of aforementioned down pipe these rear poles cross member connected to one another.Each frame member of this vehicle frame is formed by the pipe of circular cross section, and the front end face of the opposing party's pipe is tightly welded the outer peripheral face ground of last square tube.In the middle of the connecting bridge of each frame member, it is flat that the part that cross member is connected in down pipe makes external diameter be deformed into corresponding to cross member greater than the rearward end of the down pipe of cross member by press molding, and the whole zone of down pipe rear end is welded in cross member.
, the vehicle frame of pedal-type two-wheel motorcycle always reduces such problem because weld as mentioned above so exist capacity rating under the state of the outer peripheral face of the pipe of the preceding end in contact circular cross section that makes another pipe.This is because weld zone extends along the circumferencial direction of pipe and longitudinally, has to along the vertical direction, left and right directions and the so-called cause of mobile welding torch three-dimensionally of fore-and-aft direction.That is to say, be difficult because weld above-mentioned weld zone by welding robot, the cause of welding by staff of having to.In addition, the rearward end of down pipe is configured as one of flat reason that also becomes the reduction capacity rating.
The present invention makes in order to eliminate this problem, and its 2nd purpose is to provide the vehicle frame of the high pedal-type two-wheel motorcycle of a kind of capacity rating.
In addition, always, the vehicle frame of pedal-type two-wheel motorcycle is interconnected with one another these rear poles and form with cross member by connecting the pair of right and left rear pole at the down pipe that extends backward from vertical tube of front fork downwards.Aforementioned rear pole is connected in the bottom of down pipe at the place, the place ahead of step portion, extend to the rearward end of car body towards the below of vehicle seat from the rear portion of step portion with being inclined upwardly backward.
Near the rear portion of the step portion of aforementioned cross member difference crossbearer in rear pole position, the position of the position of vehicle seat leading section below and vehicle seat rearward end below.
In addition, at the rear portion of aforementioned rear pole upper support that upper end open is forward states the baggage container that vehicle seat opens and closes.This baggage container makes the bottom reach left and right sides rear pole rearward end each other from the top in order to increase the collection capacity as far as possible, leading section and rearward end (aforementioned bottom) are supported on rear pole.The supporting of baggage container leading section is forward to be stated the cross member that is positioned at vehicle seat leading section below in the middle of the cross member and carries out.The supporting of baggage container rearward end is fixed in these leading sections that support with carriage to aforementioned bottom and is carried out by on the rear pole of the left and right sides supporting being arranged to respectively with carriage extend below body inner side.
In the vehicle frame of the pedal-type two-wheel motorcycle always that constitutes as mentioned above, for fear of having to the rearward end cross member each other that is connected the pair of right and left rear pole is located at the rear of baggage container exist rear pole and add the problem of looking such above its needs with the interference of baggage container.Increase the weight of vehicle frame because of rear pole extends, and produced the such problem of rigidity reduction of vehicle frame., shorten the formation of rear pole ground if aforementioned cross member is moved on to the car body front side, then have to form recess in order to avoid this cross member on baggage container, the collection capacity of baggage container has just reduced.
The present invention makes in order to eliminate this problem, and its 3rd purpose is both to adopt the bottom that makes baggage container to reach rear pole structure each other, can shorten rear pole ground again and form.
In order to realize above-mentioned the 1st purpose, according to the vehicle frame of the pedal-type two-wheel motorcycle of first scheme of the present invention the engine installation supporting with carriage on crossbearer about two carriage cross members connected to one another.
According to the present invention, then be under the state of same axis and two carriages interconnected by cross member at the engine installation installation portion, form assembly whereby, the engine installation installation portion that is positioned to length from vertical tube of front fork and is specified length and two places is welded in rear pole to this assembly along the overall width direction with arranging, and the welding operation of two carriages finishes whereby.
Therefore, can carry out the location of two tray chambers in advance, the location of the fore-and-aft direction of rear pole can be carried out when the welding of carriage.
Vehicle frame according to the present invention program 2 pedal-type two-wheel motorcycle is in the vehicle frame of the pedal-type two-wheel motorcycle described in the scheme 1, and cross member is located at the engine installation supporting with near the position the engine installation installation portion of carriage.
According to the present invention, then can improve the torsional rigid of engine installation supporting with carriage by cross member.
In order to realize above-mentioned the 2nd purpose, vehicle frame according to the present invention program 3 pedal-type two-wheel motorcycle, the rearward end that connects down pipe and the cross member of pair of right and left rear pole by form towards open section コ font ground, the place ahead of car body crossbearer also in the rearward end of down pipe and about rear pole between the pair of right and left arm and constitute with plate-like portion that these two arms integrally formed and be welded in the opening edge portion of down pipe rear end.
According to the present invention, then the weld zone of the arm of cross member and down pipe and rear pole becomes along the same linearity of the fore-and-aft direction of car body ground and extends.In addition, the weld zone of the rearward end of the plate-like portion of cross member and down pipe becomes the circumferencial direction extension along the down pipe rear end.Therefore, make so-called the moving of welding torch and the weld zone that welds reduces three-dimensionally.
Vehicle frame according to the present invention program 4 pedal-type two-wheel motorcycle is in the vehicle frame of the pedal-type two-wheel motorcycle described in the scheme 3, the plate-like portion of cross member is provided with the location tab that snaps in the aforementioned opening on upper end and bottom, the base end part of these tabs is welded in the open end of down pipe.
According to the present invention, then by aforementioned tab is snapped in down pipe, the plate-like portion of cross member is being positioned under the state of the open rearward end of down pipe, and cross member is held in down pipe.In addition, because the base end part of aforementioned tab is welded in down pipe, so can concentrate on tab positioning function with as the function of soldered portion, compare with separate occasion at different parts with these two functions, can reduce and have the part that forms accurately.
The vehicle frame of the pedal-type two-wheel motorcycle described in the present invention program 5 is in the vehicle frame of the pedal-type two-wheel motorcycle described in scheme 3 or the scheme 4, and the opening with the down pipe rear end in side-looking forms the plate-like portion of cross member and the stringer board that extends along the vertical direction at the rearward end place of two arms substantially abreast.
According to the present invention, then can form plate-like portion and arm by a sheet material.
In order to realize above-mentioned the 3rd purpose,, the rearward end cross member each other that connects rear pole is connected in the bottom of rear pole and extends setting towards the overall width direction below rear pole according to the vehicle frame of pedal-type two-wheel motorcycle of the present invention.
According to the present invention, then can be located at the rearward end cross member each other that connects rear pole the below of baggage container because not the rearward end of rear pole from the rear extension setting of baggage container, so can be than always form rear pole shortly to car body.
The vehicle frame of the pedal-type two-wheel motorcycle described in the scheme 7 is in the vehicle frame of the pedal-type two-wheel motorcycle described in the scheme 6, by the pair of right and left above-below direction extension that extends downwards from rear pole, with these above-below direction extensions overall width direction connected to one another extension is constituted cross member, bend to the lower surface of aforementioned overall width direction extension when the car body rear is watched convex.
According to the present invention, the then forward sweep of stating can enlarge gap between cross member and the trailing wheel, therefore can the lowland forms the overall width direction extension of cross member.
The vehicle frame of the pedal-type two-wheel motorcycle described in the scheme 8 is in the vehicle frame of the pedal-type two-wheel motorcycle described in scheme 6 or the scheme 7, makes the diapire of baggage container be supported on cross member.
According to the present invention, then do not need to support specially the supporting carriage of baggage container bottom.
The vehicle frame of the pedal-type two-wheel motorcycle described in the scheme 9 is in the vehicle frame of scheme 6 pedal-type two-wheel motorcycle of any one to the scheme 8 described inventions, is provided with back shock absorption device carriage on the end of the overall width direction of cross member.
According to the present invention, the back shock absorption device is bearing on the cross member as strength member.
Description of drawings
Fig. 1 is to use the lateral plan according to the pedal-type two-wheel motorcycle of vehicle frame of the present invention.
Fig. 2 is the lateral plan of vehicle frame.
Fig. 3 is the birds-eye view of vehicle frame.
Fig. 4 is the back view of vehicle frame.
Fig. 5 represents local lateral plan enlargedly.
Fig. 6 is the VI-VI line cutaway view that the leading section of carriage and connecting rod is used in the engine installation supporting among Fig. 5.
Fig. 7 is the VII-VII line cutaway view of the rearward end and the compression beam of the connecting rod among Fig. 5.
Fig. 8 is the lateral plan of representing enlargedly according to cross member of the present invention.
Fig. 9 is the lateral plan that connects the part of the rearward end of down pipe and rear pole by another cross member.
Figure 10 represents local back view enlargedly.
Figure 11 is the transparent view of another cross member.
Figure 12 is the transparent view according to other cross members of the present invention.
The specific embodiment
Below, explain a embodiment with Fig. 1 to Figure 12 according to the vehicle frame of pedal-type two-wheel motorcycle of the present invention.
Fig. 1 is to use the lateral plan according to the pedal-type two-wheel motorcycle of vehicle frame of the present invention, Fig. 2 is the lateral plan of vehicle frame, Fig. 3 is the birds-eye view of vehicle frame, Fig. 4 is the back view of vehicle frame, Fig. 5 represents local lateral plan enlargedly, Fig. 6 is the VI-VI line cutaway view that the leading section of carriage and connecting rod is used in the engine installation supporting among Fig. 5, Fig. 7 is the VII-VII line cutaway view of the rearward end and the compression beam of the connecting rod among Fig. 5, Fig. 8 is the lateral plan of representing enlargedly according to cross member of the present invention, Fig. 9 is the lateral plan that connects the part of the rearward end of down pipe and rear pole by another cross member, Figure 10 represents local back view enlargedly, Figure 11 is the transparent view of another cross member, and Figure 12 is the transparent view according to other cross members of the present invention.
In these figure, label 1 expression be pedal-type two-wheel motorcycle according to present embodiment.This two-wheeled motor vehicle 1 usefulness vehicle frame 2 according to the present invention constitutes, and is carrying one oscillating power device 3 described later freely in the swing of the back side lower part upper edge of this vehicle frame 2 above-below direction.In Fig. 1, label 4 expression front-wheels, 5 expression front forks, 6 expression bogie car handles, 7 expression vehicle seats, 8 expression baggage containers, 9 expression trailing wheels, 10 expression car body covers.Aforementioned baggage container 8 is structures that the article gangway 8a of upper end opens and closes by vehicle seat 7, as shown in fig. 1, has the volume that can collect full shape of face helmet 8b and other article (not shown)s and forms.
Aforementioned pair of right and left rear pole 14,15 comprises: position from leading section to the vehicle seat lower front in side-looking and step portion 21 (with reference to Fig. 1) substantially upwardly extending backward abreast anterior 22, than the angle of inclination of these anterior 22 pairs of levels become the earth from anterior 22 the upwardly extending backward central portion 23 in rear end and from then on the rear end of a central portion 23 in aforementioned anterior 22 rear portions 24 of extending abreast substantially.
The front portion 22 of the rear pole 14 in car body left side and the rear pole 15 on car body right side is connected by the 1st～the 3rd cross member 16～18 each other, and rear portion 24 is connected with the 5th cross member 19,20 by the 4th each other.The central portion of the overall width direction of aforementioned the 1st cross member 16 is welded in down pipe 12, and down pipe 12 and two sides' rear pole 14,15 is coupled together.The rear pole 14,15 of the 2nd cross member 17 about the handle of the rearward end office of step portion 21 is connected to each other.In addition, this one the 2nd cross member 17 for fear of with the interference of the driving engine of engine installation, form a door shape as shown in Figure 3, as shown in Fig. 1 and Fig. 5, in side-looking, be set as forward and be inclined upwardly.
Aforementioned the 3rd cross member 18 forms the door shape that projects upwards, about rear pole 14,15 in the rear end part of front portion 22 be connected to each other, and supporting the leading section of baggage container 8 by the upper end.Between aforementioned the 2nd cross member 17 and the 3rd cross member 18 in the front portion 22 of rear pole 14,15, welding downwards the engine installation supporting usefulness carriage 25 that the leading section that support engine installation 3 is used highlightedly.
Aforementioned the 4th cross member 19 and the 5th cross member 20 are interconnected with one another the rear end part at the rear portion 24 of rear pole 14,15.The 4th cross member 19 extends along the overall width direction by the below of rear pole 14,15.The 5th cross member 20 forms door shape and projects upwards from rear pole 14,15, is supporting the rearward end of baggage container 8 by the upper end.
Aforementioned engine installation 3 adopts and the same formation of known person always, by 4 stroke single cylinder motors 31, the transmission gearbox 33 that on the crankcase 32 of this driving engine 31, integrally forms and be contained in these transmission gearbox 33 in-to-in driving device (not shown)s and wait and constitute.In addition, this engine installation 3 as shown in fig. 1, by connecting rod 34 leading section (the preceding side lower part of crankcase 32) is swung the aforementioned engine installation supporting carriage 25 that is supported on rear pole 14,15 freely along the vertical direction, and lean on shock absorption device 35 the rearward end of rearward end (rearward end of transmission gearbox 33) suspension in the rear pole 14 in car body left side.Clamp compression beam 36 between the engine installation side end of aforementioned connecting rod 34 and vehicle frame 2, the front portion of restricted power device 3 moves up with respect to vehicle frame 2.
The driving engine 31 of this engine installation 3 forms the place ahead of the orientation of its axis car body of cylinder 37, makes cylinder 37 in the face of between the rear pole 14,15 of vehicle frame 2.Aforementioned cylinder 37 is connecting aspirate tube 38 on top, and is connecting the freeing pipe (not shown) in the bottom.On aforementioned aspirate tube 38, connect carburetter 39, on this carburetter 39, connecting air purifier 39a.Aforementioned carburetter 39 is supplied with fuel oils from the fuel tank 40 of 22 belows, front portion that are located at rear pole 14,15.In rear pole 14,15, fuel feed pipe 40a is set by unillustrated bearing bracket in the extension of the left side of vertical tube of front fork 11.
The structure of the connecting bridge of the leading section of engine installation 3 and vehicle frame 2
Here, illustrate in greater detail the structure of the connecting bridge of the leading section of engine installation 3 and vehicle frame 2 with Fig. 5～Fig. 7.
The supporting of aforementioned engine installation by the outer panel 41 that is positioned at the car body outside, is positioned at interior plate 42 Combination Welding of body inner side and forms with carriage 25 as shown in Figure 6.In addition, be located at the carriage 25 on the rear pole 14 in car body left side and the carriage 25 that is located on the rear pole on car body right side interconnects with cross member 43 by carriage, under the state of an assembly of formation, be welded in rear pole 14,15.
Aforementioned connecting rod 34 is as shown in Fig. 5 and Fig. 6, by be connected in the supporting of aforementioned engine installation with the front link 45 of carriage 25 and be welded in this front link 45 the overall width direction central portion and the rear link 46 that engine installation 3 is connected in rearward end constituted.The leading section of the pipe 45a of open コ font forms front link 45 towards the place ahead by lug boss 45b being welded in overlooking.This lug boss 45b is inserted in the transom of interconnective inner core 47 and urceolus 48 via damping rubber 45c.
The inner core 47 of this transom is overlapping to body inner side and is being located at the engine installation supporting with the bolt 49 of the supporting on the interior plate 42 of carriage 25 with stretching out, leans on this bolt 49 to be anchored on the end face of the body inner side of aforementioned interior plate 42.The bolt hole 42a of interior plate 42 was inserted in aforementioned supporting by the through hole 41a that forms on outer panel 41 with bolt 49.Aforementioned bolt hole 42a constitutes the engine installation installation portion of engine installation supporting according to the present invention with carriage.This bolt hole 42a forms near the rear of two carriage 25 aforementioned cross members 43 connected to one another.
In the middle of lug boss 45b, the 45b at aforementioned anterior 22 two ends, on the lug boss 45b on car body right side, as shown in Fig. 5 and Fig. 6, in the bottom of compression beam 36 from connecting rod 34 take off and engine installation 3 when moving up with respect to vehicle frame 2 for being moved further that restricted power device 3 makes progress, be provided with buting iron 50.This buting iron 50 is formed by sheet material, an end is welded in the peripheral part of lug boss 45b, and makes the other end outstanding so that in opposite directions in the top of aforementioned cross member 43 to car body the place ahead from lug boss 45b.
The aforementioned rear link 46 of connecting rod 34 forms by the rearward end that barrel member 46b is welded in the transom 46a that extends back from the pipe 45a of aforementioned front link 45.This barrel member 46b connects with bolt 51 at state lower support that bolt is passed as shown in Figure 7, through one connecting with bolt 51 bottom (engine installation 3 side ends) of two connecting panels 52 of engine installation 3 and compression beam 36 is coupled together thus.Aforementioned connecting panel 52 integrally forms on crankcase, rotates to be supported on freely via bearing 53 to connect with bolt 51.
The bottom of compression beam 36 via with the equal lug boss 36a of the lug boss 45b of aforementioned front link 45 and transom elastic support in being connected with bolt 51.54 expressions are located at the inner core of the transom in the lug boss 36a, 55 expression urceolus, 56 expression damping rubbers.Adopt and the equal structure in bottom the upper end of compression beam 36 (ends of vehicle frame 2 sides), transom with inner core 57, urceolus 58 and damping rubber 59 is set, through a lug boss 36b and aforementioned transom are supported on aforementioned auxiliary bracket 44 thus in lug boss 36b.Aforementioned inner core 57 is anchored on auxiliary bracket 44 by supporting with bolt 60.
By connecting rod 34 and compression beam 36 leading section of engine installation 3 is supported on vehicle frame 2 like this, the leading section of engine installation 3 can rotate with respect to vehicle frame 2 along the vertical direction by damping rubber 45c, 56,59 elastic deformation amount whereby.
For aforementioned engine installation supporting is welded in rear pole 14,15 with carriage 25, at first, the carriage 25 in car body left side and the carriage 25 on car body right side are interconnected by cross member 43, form the carriage assembly.The bolt hole 42a of the aforementioned bolt hole 42a of the carriage 25 that is welded on the car body left side of aforementioned cross member 43 and the carriage 25 on car body right side is positioned at same axis, and carries out under the state of angle (inclination) unanimity of two carriages 25 in side-looking.That is to say, in this process, carry out the location of 25 on left and right sides carriage.Then, with unillustrated anchor clamps etc. the aforementioned bracket assembly is placed the below of the front portion 22 of rear pole 14,15 temporarily, the bolt hole 42a, the 42a that become specified length and two places from the length of vertical tube of front fork 11 arrange the location, ground and are welded in rear pole 14,15 along the overall width direction.In this process, carry out the location of the fore-and-aft direction of carriage 25.
Thereby, if use vehicle frame 2 according to present embodiment, then because can carry out the location of 25 on two carriages in advance, can carry out when the welding of carriage 25 with respect to the location of the fore-and-aft direction of rear pole 14,15, so can simply and accurately be welded in vehicle frame 2 to aforementioned bracket 25.
In addition, because being provided with cross member 43 with the position of the bolt hole 42a of carriage 25, so lean on this cross member 43 can improve the torsional rigid of aforementioned bracket 25 near engine installation supporting.
Connect the down pipe 12 of vehicle frame 2 and the 1st cross member of pair of right and left rear pole 14,15
16 structure
Illustrate in greater detail the structure of down pipe 12 with the 1st cross member 16 of pair of right and left rear pole 14,15 of connection vehicle frame 2 below with Fig. 8～Figure 11.
The 1st cross member 16 forms the pair of right and left arm 141,142 of コ font by section as shown in Figure 11, and the plate-like portion 143 between these two arms 141,142 constitutes, by a block plate being applied punching press and bending machining forms the regulation shape.
Aforementioned arm 141,142 has along the vertical direction the stringer board 144 that extends and the above-below direction both ends of a stringer board 144 upper plate 145 and the lower plate 146 of extending to the car body front side from then on, forms towards the open section コ font in the place ahead of car body.In addition, this arm 141,142 forms to have and is contacted with the length that the other end under the state of down pipe 12 is contacted with rear pole 14,15 in the end that makes body inner side as shown in Figure 8.
The upper plate 145 of aforementioned arm 141,142 and lower plate 146 as shown in Figure 9, the longitudinally (fore-and-aft direction of car body) that forms in side-looking with down pipe 12 and rear pole 14,15 extends abreast.In addition, aforementioned stringer board 144 forms continuously with plate-like portion 143, and does not produce ladder between the aforementioned plate-like portion 143.Therefore, the stringer board 144 and the plate-like portion 143 of the arm 142 on the stringer board 144 of the arm 141 in car body left side and car body right side are in the same plane.
In the present embodiment, as shown in Figure 9, the opening 12b of the rear end of down pipe 12 is formed backward with being inclined upwardly, the aforementioned plate-like portion 143 and the stringer board 144 of arm 141,142 are formed obliquely with aforementioned opening 12b.In addition, when the length setting of the above-below direction of aforementioned stringer board 144 became upper plate 145 to be contacted with the top of rear pole 14,15, lower plate 146 was contacted with the bottom of rear pole 14,15.
Aforementioned plate-like portion 143 integrally forms tab 147,148 respectively in upper end and bottom as shown in Figure 11, runs through that at the central portion of above-below direction the circular port 149 that anchor clamps are installed usefulness being set.Aforementioned tab 147,148 is outstanding to the place ahead of car body from the both ends of the above-below direction of plate-like portion 143, watches the formation circular shape from the place ahead of car body, so that insert the opening 12b of down pipe 12 rear ends from the rear.The curvature of this circular arc is set for consistent substantially with the curvature of down pipe 12 inner peripheral surfaces as shown in Figure 10.
For this one the 1st cross member 16 is welded in down pipe 12 and rear pole 14,15, at first the tab 147,148 of aforementioned plate-like portion 143 is inserted the opening 12b of down pipe 12 rear ends from the rear of car body, make plate-like portion 143 be contacted with the aft end face of down pipe 12.When carrying out this operation, keep plate-like portion 143 by the anchor clamps (not shown), and it is consistent with the center of down pipe 12 to be positioned to the circular port 149 of plate-like portion 143.Make aforementioned tab 147,148 insert down pipe 12, plate-like portion 143 is positioned with respect to down pipe 12 whereby, and arm 141,142 is clipped between down pipe 12 and the rear pole 14,15, and the 1st cross member 16 remains on down pipe 12 and the rear pole 14,15 temporarily.
After like this 1st cross member 16 being remained on down pipe 12 and the rear pole 14,15, base end part 147a, the 148a of aforementioned tab 147,148 are welded in the aft end face of down pipe 12, the two ends of arm 141,142 are welded in down pipe 12 and rear pole 14,15.The welding of aforementioned two tabs 147,148 makes unillustrated welding torch move two-dimensionally and carry out along the opening 12b of down pipe 12 rear ends.The weld line of this weld zone forms backward upwards in side-looking, and linearity ground extends.
The upper plate 145 of arm 141,142 and the welding of lower plate 146, because the longitudinally that upper plate 145 and lower plate 146 form in side-looking with down pipe 12 and rear pole 14,15 extends abreast, the whole zone of ora terminalis is contacted with down pipe 12 or rear pole 14,15, institute so that the welding torch (not shown) along aforementioned longitudinally linearity move and carry out.
The welding of the stringer board 144 of arm 141,142 is moved along the circumferencial direction of rear pole 14,15 by making the welding torch (not shown), simultaneously moves and carries out along the fore-and-aft direction of car body.
Thereby, in the vehicle frame 2 that constitutes as described above, the arm 141,142 of the 1st cross member 16 becomes along the fore-and-aft direction linearity ground of car body in the weld zone of down pipe 12 and rear pole 14,15 and extends, and the plate-like portion 143 of the 1st cross member 16 becomes along the circumferencial direction of down pipe rear end with the weld zone of down pipe 12 and extends.Therefore, the vehicle frame always that forms the 1st cross member 16 with pipe by circular cross section is compared, and can reduce the weld zone that makes so-called the moving of welding torch three-dimensionally and weld.
In addition, because insert down pipe 12 by the tab 147,148 that makes aforementioned plate-like portion 143, plate-like portion 143 is being positioned under the state of the opening 12b of down pipe 12 rear ends, the 1st cross member 16 is held in down pipe 12, so do not need the 1st cross member 16 is remained in the special-purpose members of using the position of weld of maintenance such as anchor clamps temporarily.And, because base end part 147a, the 148a of aforementioned tab 147,148 are welded in down pipe 12, so can concentrate on tab 147,148 positioning function with as the function of soldered portion, compare with separate occasion at different parts, can reduce and have accurately the part that forms with these two functions.
The structure of the 4th cross member 19
Aforementioned the 4th cross member 19 forms from the rear of car body and watches upwards open コ font as shown in Fig. 4 and Figure 12, is connected in the bottom of rear pole 14,15 and extends along the overall width direction by the bottom of rear pole 14,15.Above this one the 4th cross member 19, extend the rearward end that baggage container 8 is set, make the diapire 8c of this rearward end be supported on the 4th cross member 19.This one the 4th cross member 19 constitutes according to cross member of the present invention.
The 4th cross member 19 in the present embodiment, constitutes by the above-below direction extension 241,242 that extends downwards from rear pole 14,15 with these above-below direction extension 241,242 overall width direction extensions 243 connected to one another.
Aforementioned above-below direction extension 241,242 is by forming the regulation shape to block plate execution punching press and bending machining, be included in 1st longitudinal wall 241a, the 242a of the place, end of car body front side along the extension of overall width direction, from then on the 2nd longitudinal wall 241b, the 242b that extend back of the end in the car body of one the 1st longitudinal wall 241a, the 242a outside, from then on the rearward end of one the 2nd longitudinal wall 241b, 242b example is extended in car body the 3rd longitudinal wall 241c, 242c and from then on the 4th longitudinal wall 241d, the 242d that extend back of the end of the body inner side of one the 3rd longitudinal wall 241c, 242c.
In the middle of these longitudinal walls, the 1st～the 3rd longitudinal wall 241a, 242a～241c, 242c are welded in the bottom of rear pole 14,15 to the upper end, and the bottom is welded in overall width direction extension 243.The mudwing 44 (with reference to Fig. 1) of rear vehicle is installed on the 4th longitudinal wall 241d, 242d.
Aforementioned overall width direction extension 243 sections form the コ font downwards, and watch bending to convexly from the car body rear and form, and aforementioned above-below direction extension 241,242 is installed on the both ends of overall width direction.Represent aforementioned sweep with label 245 among Fig. 4.This sweep 245 forms at back shock absorption device 35 and is compressed under the shortest state and leaves dimension D (with reference to Fig. 4) from trailing wheel 9.
In addition, on the lower surface at these overall width direction extension 243 both ends, be provided with the damping upper end that back shock absorption device 35 is installed used with carriage 246.This carriage 246 is welded in overall width direction extension 243 to the upper end for there to be the section of pair of right and left installation sheet 246a to form the コ font down.And then between the diapire 8c of the upper surface of overall width direction extension 243 and baggage container 8, as shown in Figure 4, the buffering that is clamping rubber system is with seat 247.
Aforementioned the 5th cross member 20 forms door shape and projects upwards from rear pole 14,15 as shown in Figure 4, as shown in fig. 1, extends along the overall width direction at the place, rear of baggage container 8 and to be provided with.Support the rearward end of baggage container 8 via bale handle 48 (with reference to Fig. 1) in the upper end of this one the 5th cross member 20.Aforementioned bale handle 48 forms the コ font open towards lower body the place ahead in overlooking, medial surface the rearward end of vehicle seat 7 and baggage container 8 is fixed in the bale handle of rear pole 14,15 with the bale handle usefulness supporting slice 250 of carriage 49 (with reference to Fig. 1) and the 5th cross member 20 (with reference to Fig. 1～Fig. 4).
In addition, the leading section of the 5th cross member 20 (both ends of overall width direction) forms as shown in Fig. 1 and Fig. 2 backward with being inclined upwardly, locates to be connected in rear pole 14,15 above the 4th cross member 19.By adopting this formation, when connecting the 5th cross member 20, eliminated necessity that rear pole 14,15 is prolonged to the car body rear.
The vehicle frame 2 of the pedal-type two-wheel motorcycle of Gou Chenging like this, because the rearward end of rear pole 14,15 the 4th cross member 19 connected to one another, be connected in the bottom of rear pole 14,15 and below rear pole 14,15, extend setting towards the overall width direction, so can be located at the 4th cross member 19 below of baggage container 8, as shown in fig. 1, just impassable to the rearward end that the car body rear extension is provided with rear pole 14,15 from baggage container 8.As a result, in this vehicle frame 2, can be than always form rear pole 14,15 shortly.
In addition, because this vehicle frame 2, by the pair of right and left above-below direction extension 241,242 that extends downwards from rear pole 14,15, with these above-below direction extension 241,242 overall width direction extensions 243 connected to one another are constituted the 4th cross member 19, aforementioned overall width direction extension 243 bend to watch from the car body rear become convex, so can enlarge gap between the 4th cross member 19 and the trailing wheel 9 by sweep 245, whereby can the lowland form the overall width direction extension 243 of the 4th cross member 19.Comprise lower surface in interior overall width direction extension 243 whole bendings though make in the present embodiment, also can lower surface be formed agley.
And then, because this vehicle frame 2 is supported on the 4th cross member 19 to the diapire 8c of baggage container 8,, compares with the vehicle frame always that has this carriage and can seek expendable weight and cost-cutting so do not need to support specially the supporting carriage that the bottom of baggage container 8 is used.
Have again,, can support back shock absorption device 35 strongly so be used as the 4th cross member 19 of strength member because on the end of the overall width direction of the 4th cross member 19, be provided with the back shock absorption device with carriage 246.
According to the present invention program as described above 1, then because can carry out the location of two tray chambers in advance, the location of the fore-and-aft direction of rear pole can be carried out when the welding of carriage, so compare with the vehicle frame always that carries out simultaneously on one side welding on one side aforementioned two kinds of location, can increase productivity.
According to the present invention program 2, then because can improve the torsional rigid of engine installation supporting, so a kind of vehicle frame that can support the pedal-type two-wheel motorcycle of engine installation can be provided strongly with carriage by cross member.
The present invention according to the realization of above explanation the 2nd purpose of the present invention, then because can linearity ground the weld zone of welding increase and make so-called the moving of welding torch and the weld zone minimizing of welding three-dimensionally, so welding operation becomes simply, can increase productivity.Particularly, by weld the simple weld zone of shape with welding robot, can further increase productivity.In addition, because can form the arm and the plate-like portion of section コ font by for example plastic working by a block plate, so according to vehicle frame of the present invention, not only the welding operation simplification of cross member can increase productivity, and, the manufacturing of cross member also can increase productivity easily because of becoming.
According to the invention of scheme 4, then by the tab of the plate-like portion of cross member is snapped in down pipe, aforementioned plate-like portion is being positioned under the state of the open rearward end of down pipe, and cross member is held in down pipe.
Therefore, do not need cross member is remained in the member of the maintenance special use of anchor clamps of using the position of weld etc. temporarily, can carry out welding operation efficiently.In addition, because the base end part of aforementioned tab is welded in down pipe, so can concentrate on tab positioning function with as the function of soldered portion, compare with separate occasion at different parts with these two functions, can reduce and have the part that forms accurately.Therefore, can reduce the manufacturing cost of cross member.
According to the invention of scheme 5, then because can form plate-like portion and arm, so can further reduce the manufacturing cost of cross member by a sheet material.
The present invention according to the realization of above explanation the 3rd purpose of the present invention, then because can be located at the rearward end cross member each other that connects rear pole the below of baggage container, just impassable from extend back rearward end that rear pole is set of baggage container, so can be than always form rear pole shortly.Therefore, can alleviate the weight of vehicle frame, and the interval of the cross member in the rearward end of rear pole cross member connected to one another and the place ahead is shortened, the rigidity that can seek vehicle frame improves.
According to the invention of invention scheme 7, then can enlarge gap between cross member and the trailing wheel by the sweep of cross member, whereby can the lowland form the overall width direction extension of cross member.Therefore, can both avoid the interference with trailing wheel, and reduce the bottom of baggage container again and increase the collection capacity.
According to the invention of invention scheme 8,,, can reduce part and count expendable weight, and seek cost-cutting so compare with the vehicle frame always that this carriage is arranged because do not need to support specially the supporting carriage of baggage container bottom.
According to the invention of scheme 9, the upper end of back shock absorption device is bearing on the cross member as strength member, can support strongly.
Claims (9)
1. the vehicle frame of a pedal-type two-wheel motorcycle (2), have from the upwardly extending backward pair of right and left rear pole of step portion (14,15), the supporting of the engine installation of the leading section of supporting one oscillating power device (3) is welded in aforementioned rear pole (14,15) respectively with carriage (25,25), wherein goes up crossbearer these two carriage cross members connected to one another (43) at aforementioned two carriages (25,25).
2. the vehicle frame of the described pedal-type two-wheel motorcycle of claim 1 (2) wherein is located near the position of engine installation installation portion that carriage (25,25) is used in the engine installation supporting to cross member (43).
3. the vehicle frame of a pedal-type two-wheel motorcycle (2), from vertical tube of front fork (11) downward down pipe (12) that extends behind the mediad of overall width direction, with the pair of right and left rear pole (14 that extends back of a down pipe (12) from then on midway, 15) interconnect via cross member (16), wherein aforementioned cross member (16) by forms towards open section コ font ground, the place ahead of car body crossbearer also in the rearward end of aforementioned down pipe (12) and about rear pole (14,15) the pair of right and left arm (141 between, 142) and with these two arms (141,142) plate-like portion (143) of the opening edge portion that is welded in down pipe (12) rear end that integrally forms constitutes.
4. the vehicle frame of the described pedal-type two-wheel motorcycle of claim 3 (2), wherein the plate-like portion (143) of cross member (16) is provided with the location tab (147,148) that snaps in the aforementioned opening on upper end and bottom, and the base end part of these tabs (147,148) is welded in the open end of down pipe.
5. the vehicle frame (2) of claim 3 or the described pedal-type two-wheel motorcycle of claim 4 wherein forms the plate-like portion (143) of cross member (16) and the stringer board (144) that extends along the vertical direction at the rearward end place of two arms (141,142) with the opening of down pipe rear end substantially abreast in side-looking.
6. the vehicle frame of a pedal-type two-wheel motorcycle (2), by cross member (19) rearward end of pair of right and left rear pole (14,15) is connected to each other, the bottom faces that makes baggage container (8) wherein is connected in aforementioned cross member (19) bottom of rear pole (14,15) and extends setting in the below of rear pole (14,15) towards the overall width direction between the aforementioned rearward end.
7. the vehicle frame of the described pedal-type two-wheel motorcycle of claim 6 (2), wherein cross member (19) is by the pair of right and left above-below direction extension that extends downwards from rear pole (14,15), with these above-below direction extensions overall width direction connected to one another extension is constituted, the lower surface of aforementioned overall width direction extension bends to when the car body rear is watched convex.
8. the vehicle frame (2) of claim 6 or the described pedal-type two-wheel motorcycle of claim 7 wherein makes the diapire of baggage container (8) be supported on cross member (19).
Claim 6 to claim 8 described in the middle of any one the vehicle frame (2) of pedal-type two-wheel motorcycle, wherein on the end of the overall width direction of cross member (19), be provided with the back shock absorption device with carriage (146).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001305274A JP2003104267A (en) | 2001-10-01 | 2001-10-01 | Body frame of scooter type motorcycle |
| JP305274/2001 | 2001-10-01 | ||
| JP307582/2001 | 2001-10-03 | ||
| JP2001307576A JP3816775B2 (en) | 2001-10-03 | 2001-10-03 | Scooter type motorcycle body frame |
| JP2001307582A JP2003112679A (en) | 2001-10-03 | 2001-10-03 | Vehicle body frame for scooter type motorcycle |
| JP307576/2001 | 2001-10-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1410313A true CN1410313A (en) | 2003-04-16 |
| CN1278901C CN1278901C (en) | 2006-10-11 |
Family
ID=27347637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02143570 Expired - Fee Related CN1278901C (en) | 2001-10-01 | 2002-09-29 | Frame for pedal-type two-wheel motorcycle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1278901C (en) |
| TW (1) | TW575511B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801777B (en) * | 2007-09-18 | 2012-07-25 | 雅马哈发动机株式会社 | Saddle-riding type vehicle |
| CN108025786A (en) * | 2015-09-08 | 2018-05-11 | 本田技研工业株式会社 | The automobile-used vehicle body frame of two-wheel |
| EP3599150A1 (en) * | 2018-07-27 | 2020-01-29 | Yamaha Hatsudoki Kabushiki Kaisha | Straddled vehicle |
-
2002
- 2002-09-29 CN CN 02143570 patent/CN1278901C/en not_active Expired - Fee Related
- 2002-10-01 TW TW91122624A patent/TW575511B/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801777B (en) * | 2007-09-18 | 2012-07-25 | 雅马哈发动机株式会社 | Saddle-riding type vehicle |
| CN108025786A (en) * | 2015-09-08 | 2018-05-11 | 本田技研工业株式会社 | The automobile-used vehicle body frame of two-wheel |
| CN108025786B (en) * | 2015-09-08 | 2020-10-16 | 本田技研工业株式会社 | Body frame for two-wheel motorcycle |
| EP3599150A1 (en) * | 2018-07-27 | 2020-01-29 | Yamaha Hatsudoki Kabushiki Kaisha | Straddled vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| TW575511B (en) | 2004-02-11 |
| CN1278901C (en) | 2006-10-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20061011 Termination date: 20100929 |