CN100586787C - Power unit suspension gear for minitype motorcycle type vehicle - Google Patents
Power unit suspension gear for minitype motorcycle type vehicle Download PDFInfo
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- CN100586787C CN100586787C CN200610126019A CN200610126019A CN100586787C CN 100586787 C CN100586787 C CN 100586787C CN 200610126019 A CN200610126019 A CN 200610126019A CN 200610126019 A CN200610126019 A CN 200610126019A CN 100586787 C CN100586787 C CN 100586787C
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- power unit
- car body
- pivot
- adapter shaft
- pipe link
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Abstract
The present invention provides a power unit suspension device for minitype motorcycle type vehicle, the device can simplify the structure of limit device which is used for limiting the move along up and down direction of power unit and rear wheel. Fix one end of the connecting bar (84) on the inner pintle board (31b) and the bar can swing freely, fix the power unit (56) on the other end of the connecting bar (84) and the power unit can swing freely, limit mechanism (105) is set on the inner pintle board (31b) and the connecting bar (84), for limiting the move along front and back direction ofpower unit (56), and making the line segment where the third pintle (93) on the connecting bar (84) connects the fourth pintle (94), at the same time, the connecting bar (84) supports the fourth pintle (94) by rubber bush (112).
Description
Technical field
The present invention relates to a kind of improvement of draft hitch of power unit of minitype motorcycle type vehicle.
Background technology
As the power unit suspension gear of existing minitype motorcycle type vehicle, power unit is connected to structure on the car body, (for example, with reference to patent documentation 1) known for everyone by connecting rod mechanism.
Patent documentation 1: the Japanese documentation spy opens clear 62-120288 communique.
Below, the 6th figure of patent documentation 1 is described.
One end of first connecting rod 21 swings up and down by pivot shaft 14 and is installed in freely on the main car frame 8, one end of second connecting rod 31 is connected on the other end of first connecting rod 21 freely by supporting axis 38 swings, and rear body part (power unit) 3 is connected on the other end of second connecting rod 31 freely by bolt 42 swings.
The length direction of first connecting rod 21 towards the rear and oblique upper extend, and, this first connecting rod 21 is provided with two forked supporting blades 28,28 and is installed on this two forked supporting pieces 28,28 and between the sheet rubber 46,46 between itself and the crossbeam 12, these sheet rubbers 46,46 come restricted power unit 3 moving at above-below direction according to the distortion that is caused by compression, when reaching the maximum compression distortion soon, the mobile of above-below direction is limited.On the other hand, the length direction of second connecting rod 31 extends towards the rear and tiltedly, and, tab 44 is set on first connecting rod 21; Bar 45 is set on second connecting rod 31; In addition, axle 49 and compressing rubber sheet 47,48 are set, this axle 49 connects this tab 44, and be connected with bar 45 by bolt and nut 55, these compressing rubber sheet 47,48 grip tab 44, and fit loosely on the axle 49, these compressing rubbers 47,48 allow power unit 3 moving at fore-and-aft direction according to the distortion that is caused by compression, when reaching the maximum compression distortion soon, the mobile of fore-and-aft direction is limited.
In above-mentioned vehicle, because the mechanism that moves at above-below direction is configured on the first connecting rod 21 with restricted power unit 3, with restricted power unit 3 in the mechanism that moves of fore-and-aft direction across being configured on first connecting rod 21 and the second connecting rod 31, simultaneously, constitute by different mechanisms respectively, therefore, when the parts number increases, it is complicated that structure also becomes, thereby cause the rising of cost.
Summary of the invention
The objective of the invention is to, seek the simplification of power unit and trailing wheel at the mobile limiting device structure that limits of above-below direction and fore-and-aft direction.
The first aspect invention is characterised in that to have driving engine and drive wheel integratedly on power unit; Be suspended in the power unit swing on the car body freely; The one end swing of first connecting rod is installed on the car body freely, simultaneously, first connecting rod is extended generally along above-below direction; One end of second connecting rod is swung the other end that is installed in this first connecting rod freely, simultaneously, second connecting rod is extended generally along fore-and-aft direction; The power unit swing is connected to freely the other end of this second connecting rod; Be installed in the end swing of pipe link on the car body freely; The power unit swing is installed in freely the other end of this pipe link; On car body and pipe link, stop gear is set, is used for restricted power unit moving along fore-and-aft direction; Make and carry out the bonded assembly line segment and extend along the vertical direction being arranged on car body side adapter shaft on the pipe link and power unit side adapter shaft, simultaneously, by pipe link by elastomeric element supporting motive force cell side adapter shaft.
The effect of pipe link is, be installed in the end swing of pipe link on the car body freely, thereby, carry out the bonded assembly line segment and extend along the vertical direction being arranged on car body side adapter shaft on this pipe link and power unit side adapter shaft by making, by this pipe link, and the end swing first connecting rod that is installed in freely on the car body and extends generally along above-below direction, allow power unit moving along fore-and-aft direction, and by stop gear restricted power unit moving along fore-and-aft direction, in addition, from power unit during to the power of pipe link effect above-below direction, the elastic deformation and the second connecting rod that cause by elastomeric element by power unit side adapter shaft, allow power unit moving along the vertical direction, and when the elastic force that is produced by the distortion of elastomeric element becomes big, come restricted power unit moving along the vertical direction by this elastic force.
The second aspect invention is characterised in that on pipe link, to have the second car body side adapter shaft between car body side adapter shaft and power unit side adapter shaft; By elastomeric element power unit side adapter shaft is connected on the power unit; By elastomeric element, the second car body side adapter shaft is connected on the car body.
The effect of elastomeric element is that power unit side adapter shaft and second car body side adapter shaft elastomeric element are separately being brought into play the pooling feature that absorbs the power unit vibration.
Third aspect invention is characterised in that, stop gear is by being arranged on the projection on the pipe link and being used to make this projection to insert and the otch that is arranged on the car body constitutes.
The effect of stop gear is, when power unit when fore-and-aft direction moves, the projections on the pipe link is in the otch of car body, with moving of restricted power unit.For example, when projection is worn and torn, change this pipe link.
The fourth aspect invention is characterised in that stop gear comprises: elastic body, and it is fixed on the end of the extension of pipe link, and extension extends to the direction different with power unit side adapter shaft from car body side adapter shaft; And restrictions, it is used for this elastic body butt car body being set.
The effect of stop gear is, when power unit when fore-and-aft direction moves, be fixed on the elastic body and the restrictions butt that is arranged on the car body of end of the extension of pipe link, thus in performance buffering and anti-vibration functions, restricted power unit mobile.
The invention of the 5th aspect is characterised in that, main support is arranged on the bottom of power unit.
The effect that is provided with in the power unit side under the situation of main support is, when single one or more elastomeric element is set in existing connecting rod mechanism, under the upright state of the main support that makes the power unit bottom, because it is different to act on the state that direction drive wheel when taking in main support of the power of above-mentioned elastomeric element lands, therefore, compared with the state that drive wheel lands, the vibration of power unit is easier to be delivered to car body sometimes.But in the present invention, even make under the upright state of the main support that is arranged on the power unit bottom, the pooling feature of a plurality of elastomeric elements that also can be by pipe link absorbs the vibration of power unit.
The invention of the 6th aspect is characterised in that elastomeric element is made of rubber bush; The rubber bush of power unit side adapter shaft has hole portion up and down power unit side adapter shaft, thereby compares with the car body fore-and-aft direction, has soft character along the vertical direction.
The effect of the rubber bush of power unit side adapter shaft is and since power unit side adapter shaft have hole portion up and down, so when power unit during, hole portion easy deformation, the vibration about being easy to absorb along up-down vibration.
The invention of the 7th aspect is characterised in that elastomeric element is made of rubber bush; The rubber bush of the second car body side adapter shaft has hole portion in the front and back of the second car body side adapter shaft, thereby compares with above-below direction, has soft character along the car body fore-and-aft direction.
The effect of the rubber bush of the second car body side adapter shaft is, owing to have hole portion in the front and back of the second car body side adapter shaft, so when power unit during along porpoise, hole portion easy deformation is easy to absorb the vibration of front and back.
The eight aspect invention is characterised in that, connects the line segment between the car body side adapter shaft and the second car body side adapter shaft, and connects the line segment between the second car body side adapter shaft and the power unit side adapter shaft, forms ㄑ shape.
The effect of each adapter shaft of pipe link being carried out the bonded assembly axis is that the extended line with respect to the line segment that connects the car body side adapter shaft and the second car body side adapter shaft can be arranged on the car body rear with power unit side adapter shaft.Thereby power unit side adapter shaft is left from car body.
The invention of the 9th aspect is characterised in that pipe link is single one, and only is arranged on a side of car body.
The effect of pipe link configuration is, by a single pipe link being arranged on a side of car body, for example, compares with the situation that the pair of right and left pipe link is arranged on the car body both sides, and the minimizing of parts number, it is simple that connecting rod mechanism becomes.
The invention of the tenth aspect is characterised in that, forms pipe link by forging.
The effect of pipe link is, forms pipe link by forging, thereby can improve the intensity of pipe link, and guaranteeing under the situation of predetermined strength, for example, compares with cast situation about making with same material, can expendable weight.
The tenth one side invention is characterised in that, by a plurality of connections support portion supporting motive force cell side adapter shaft that second connecting rod had; Pipe link is connected the support portion and first is connected the second connection support portion clamping that the support portion also is positioned at car body foreign side than this by first in a plurality of connections support portion, and is connected on the power unit side adapter shaft.
The effect of the support structure of pipe link is, be connected the support portion with second by the first connection support portion that is positioned at the pipe link both sides and support the power unit side adapter shaft that is located on the pipe link, therefore can improve rigidity by the part of power unit side adapter shaft supporting linkage.
The invention of the 12 aspect is characterised in that the elastomeric element between power unit side adapter shaft and pipe link is made of a plurality of; These elastomeric elements vertically in the alignment arrangements, are had position-limiting unit, and this position-limiting unit is set between a plurality of elastomeric elements for the deflection with elastomeric element is set in below the predetermined value.
Its effect is, by position-limiting unit, will be between power unit side adapter shaft and pipe link and vertically the deflection of a plurality of elastomeric elements of alignment arrangements be set in below the predetermined value.
In the invention of first aspect, be installed in the swing of an end of pipe link on the car body freely; The power unit swing is installed in freely the other end of this pipe link; On car body and pipe link, stop gear is set, is used for restricted power unit moving along fore-and-aft direction; Make and the adapter shaft that is located at car body side adapter shaft on the pipe link and power unit side is carried out the bonded assembly line segment extend along the vertical direction, simultaneously, by the adapter shaft of pipe link by elastomeric element supporting motive force cell side, therefore, except by stop gear restricted power unit along the moving of fore-and-aft direction, the elastic force that the time is produced by the elastomeric element distortion that is arranged on the power unit side adapter shaft on the pipe link comes restricted power unit moving along the vertical direction, thereby, can power unit be had in the one-movement-freedom-degree of fore-and-aft direction and above-below direction both direction, can come seesawing of restricted power unit and up-and-down movement by pipe link, therefore, can make the limiting device simple structureization, thereby cut down the parts number, can cost-cutting.
In the invention of second aspect, because on pipe link, between car body side adapter shaft and power unit side adapter shaft, has the second car body side adapter shaft, and power unit side adapter shaft is connected on the power unit by elastomeric element, by elastomeric element the second car body side adapter shaft is connected on the car body, so, have only single one situation to compare with elastomeric element, can improve pooling feature, absorb bigger vibration.
In the invention of the third aspect, because by the projection that is arranged on the pipe link, and be arranged on the otch that is used to make this projection to insert on the car body and constitute stop gear, so, for example, when projection needs to change owing to wearing and tearing wait, compare with situation about being arranged on the power unit in the past like that, not only be easy to change, and can stop gear be set enough simple structures.
In the invention of fourth aspect, because stop gear comprises: elastic body, it is fixed on the end of the extension of pipe link, and this extension extends to the direction different with power unit side adapter shaft from car body side adapter shaft; Restrictions, it is arranged on the car body, be used for and this elastic body butt, therefore, by for example changing elastomeric shape or elastomeric hardness, can be in the function of performance buffering and vibrationproof, easily regulate the oscillating quantity of the front and back of power unit, in addition, even when big oscillating quantity is guaranteed in expectation, also can easily tackle.
In the invention aspect the 5th, owing to main support is arranged on the bottom of power unit, therefore, even under the upright state of main support, also can improve pooling feature by a plurality of elastomeric elements of pipe link side, thereby be easy to absorb the vibration of power unit, can reduce the vibration that is delivered on the car body.
In the invention aspect the 6th, constitute elastomeric element by rubber bush, on the rubber bush of power unit side adapter shaft, has hole portion up and down at power unit side adapter shaft, thereby compare with fore-and-aft direction, have soft character along the vertical direction, therefore at car body, the rubber bush of power unit side adapter shaft can absorb by the caused vibration of power unit up-and-down movement energetically by simple structure, thereby can make the up-down vibration of power unit be difficult to be delivered on the vehicle frame.
In the invention aspect the 7th, constitute elastomeric element by rubber bush, on the rubber bush of the second car body side adapter shaft, front and back at the second car body side adapter shaft have hole portion, thereby with compare at above-below direction, have soft character along the fore-and-aft direction of car body, therefore, the rubber bush of the second car body side adapter shaft can absorb by the power unit caused vibration that seesaws energetically by simple structure, thereby can make the porpoise of power unit be difficult to be delivered on the vehicle frame.
In the invention of eight aspect, owing to connect the line segment between the car body side adapter shaft and the second car body side adapter shaft, and the line segment between connection second car body side adapter shaft and the power unit side adapter shaft, form ㄑ shape, therefore, because power unit side adapter shaft is configured to leave from car body, can when preventing that pipe link and car body from interfering, set the oscillating quantity of power unit side adapter shaft greatly.
In the invention aspect the 9th,, therefore, connecting rod mechanism is simplified, thereby can be cut down the parts number because pipe link is single one, and only is arranged on a side of car body, can cost-cutting.
In the invention aspect the tenth,, therefore, on the basis of the projection that can form to high strength stop gear, can also alleviate the weight of pipe link owing to form pipe link by forging.
In the invention of the tenth one side, because by a plurality of connections support portion supporting motive force cell side adapter shaft that second connecting rod had, connect the support portion and first be connected the second connection support portion that the support portion also the is positioned at car body foreign side bar that is clamped and connected by first in a plurality of connections support portion than this, and connect on power unit side adapter shaft, therefore, pipe link is connected the support portion by first and is connected support portion clamping and support with second, thereby, the rigidity of the part of supporting linkage can be improved, the effect of pipe link can be brought into play more reliably.
In the invention aspect the 12, because the elastomeric element between power unit side adapter shaft and pipe link is made of a plurality of, and, when these elastomeric elements are arranged vertically and are disposed, has position-limiting unit, this position-limiting unit is set between a plurality of elastomeric elements for the deflection with elastomeric element is set in below the predetermined value, therefore, the enough simple structures of energy are set the deflection of elastomeric element, simultaneously, by changing the shape of position-limiting unit, deflection is changed, thereby can increase the design-calculated degree of freedom.
Description of drawings
Fig. 1 is the lateral plan (first embodiment) with minitype motorcycle type vehicle of power unit suspension gear of the present invention.
Fig. 2 illustrates the vehicle frame central portion of minitype motorcycle type vehicle of the present invention and first block diagram of connecting rod mechanism (first embodiment).
Fig. 3 illustrates the vehicle frame central portion of minitype motorcycle type vehicle of the present invention and second block diagram of connecting rod mechanism (first embodiment).
Fig. 4 is the block diagram (first embodiment) that connecting rod mechanism of the present invention is shown.
Fig. 5 is the block diagram (first embodiment) that the stop gear of connecting rod mechanism of the present invention is shown.
Fig. 6 is the lateral plan (first embodiment) that the main portion of connecting rod mechanism of the present invention is shown.
Fig. 7 is the lateral plan (first embodiment) that connecting rod mechanism of the present invention is shown.
Fig. 8 is the section-drawing along the 8-8 line among Fig. 6.
Fig. 9 is the section-drawing along the 9-9 line among Fig. 6.
Figure 10 is the section-drawing along the 10-10 line among Fig. 6.
Figure 11 is the action diagram (first embodiment) that the effect of stop gear of the present invention is shown.
Figure 12 is the action diagram (first embodiment) that the effect of the limiting device structure that is formed by stop gear of the present invention and pipe link is shown.
Figure 13 is the block diagram (second embodiment) that vehicle frame central portion of the present invention and connecting rod mechanism are shown.
Figure 14 is the block diagram (second embodiment) that connecting rod mechanism of the present invention is shown.
Figure 15 is the lateral plan (second embodiment) that the main portion of connecting rod mechanism of the present invention is shown.
Figure 16 is the lateral plan (second embodiment) that connecting rod mechanism of the present invention is shown.
Figure 17 is the section-drawing along the 17-17 line among Figure 15.
Figure 18 is the block diagram (the 3rd embodiment) that connecting rod mechanism of the present invention is shown.
Figure 19 is the section-drawing along the 19-19 line among Figure 18.
Figure 20 is the lateral plan (the 4th embodiment) that connecting rod mechanism of the present invention is shown.
Figure 21 is along the section-drawing of the 21-21 line among Figure 20 (the 4th embodiment).
Figure 22 is along the section-drawing of the 22-22 line among Figure 20 (the 4th embodiment).
Figure 23 is along the section-drawing of the 23-23 line among Figure 20 (the 4th embodiment).
Figure 24 is the action diagram that the effect of lining of the present invention, stop gear is shown.
Label declaration
10 ... minitype motorcycle type vehicle
11 ... car body (vehicle frame)
14 ... drive wheel (trailing wheel)
16A, 16B, 16C ... power unit suspension gear
26,231c ... restrictions (main car frame, rear wall)
31c ... otch
55 ... connecting rod mechanism
56 ... power unit
59 ... driving engine
61 ... main support
81,311 ... first connecting rod
82,312 ... second connecting rod
84,236 ... pipe link
84a ... projection
93,233 ... car body side adapter shaft (the 3rd pivot)
94 ... power unit side adapter shaft (the 4th pivot)
95 ... the second car body side adapter shaft (tween drive shaft)
105,266 ... stop gear
111,112,113 ... elastomeric element (rubber bush)
123a, 123b, 128a, 128b ... hole portion
131,132,133 ... line segment
175 ... first connects support portion (left arm)
178 ... second connects support portion (end arm)
236A ... extension
237 ... elastic body (spacing rubber)
315 ... link
327 ... first cylindrical duct (urceolus)
347 ... second cylindrical duct (urceolus)
361c ... position-limiting unit (limiting device)
366,398 ... elastomeric element (rubber, the spacing rubber of using)
The specific embodiment
Below, describe being used to implement best mode of the present invention with reference to the accompanying drawings.In addition, accompanying drawing is to obtain under the situation of observing towards label.
Fig. 1 is the lateral plan (first embodiment) with minitype motorcycle type vehicle of power unit suspension gear of the present invention, and minitype motorcycle type vehicle 10 comprises: the vehicle frame 11 that becomes skeleton; Front wheel suspension steering hardware 13, the front portion that it is arranged on vehicle frame 11 is used for front-wheel 12 is carried out suspension and turns to; Rear wheel suspension driver train 16, the cardinal principle central portion that it is connected vehicle frame 11 is used for trailing wheel 14 is carried out suspension and driving; And the containing box 17 and the Fuel Tank 18 that are installed in the top, rear portion of vehicle frame 11.
Front wheel suspension steering hardware 13 comprises: front fork 51, and before turning to and be installed in freely, it manages on 25; With steering tiller 53, it is installed in the upper end of the steering shaft 52 that this front fork 51 possessed.
Rear wheel suspension driver train 16 comprises: first pivot 28; Connecting rod mechanism 55, its swing is installed on this first pivot 28 freely; Power unit 56, its swing is installed on this connecting rod mechanism 55 freely; Air inlet system 57, it is installed in the top of this power unit 56; Exhaust gear (not shown), it is installed in the bottom of power unit 56; Back vibration absorption unit 58, it sets up the rear end that is installed in power unit 56 and the rear end of main car frame 26 respectively.
Above-mentioned first pivot 28, connecting rod mechanism 55 and back vibration absorption unit 58 constitute the power unit suspension gear 16A that power unit 56 is carried out suspension.
Among the figure 65 is handle covers, the 66th, and head lamp, the 67th, protecgulum, the 68th, front fender apron, the 71st, stretcher, the 72nd, vehicle seat, the 73rd, taillight, the 74th, rear mudguard.
Fig. 2 illustrates the vehicle frame central portion of minitype motorcycle type vehicle of the present invention and first block diagram of connecting rod mechanism (first embodiment), the place ahead (following identical) of the arrow among the figure (the place ahead) expression vehicle.
The 4th pivot 94 is that supporting motive force unit 56 (with reference to Fig. 1) makes its swing axle freely.
Fig. 3 illustrates the vehicle frame central portion of minitype motorcycle type vehicle of the present invention and second block diagram of connecting rod mechanism (first embodiment), it shows following structure: pivot plate 31 is installed on the main car frame 26 and pivotable frame 33 in left side, pivot plate 32 is installed on the main car frame 27 and pivotable frame 34 on right side, first pivot 28 is installed in these pivot plates 31, on 32, with first connecting rod 81,81 swings are installed on this first pivot 28 freely, by second pivot 92 second connecting rod 82 swings are installed in these first connecting rods 81 freely, on 81, the 4th pivot 94 is installed in the rear end of this second connecting rod 82, by the 3rd pivot 93 pipe link 84 swings are installed on the interior pivot plate 31b freely, the lower end of this pipe link 84 is connected on the 4th pivot 94 pars intermedia of pivot plate 31b and pipe link 84 in connecting by tween drive shaft 95.
Fig. 4 is the block diagram (the 1st embodiment) that connecting rod mechanism of the present invention is shown, connecting rod mechanism 55 mainly is made of first connecting rod 81,81, second pivot 92, second connecting rod 82, the 3rd pivot 93, pipe link 84, the 4th pivot 94 and tween drive shaft 95, in detail, this connecting rod mechanism 55 also has: front upper portion bindiny mechanism 101, and it connects first pivot 28 and first connecting rod 81; With anterior bottom bindiny mechanism 102, it connects first connecting rod 81 and second pivot 92.About these front upper portion bindiny mechanisms 101 and anterior bottom bindiny mechanism 102, will describe in detail in the back.
Fig. 5 is the block diagram (first embodiment) that the stop gear of connecting rod mechanism of the present invention is shown, it shows following structure: on pivot plate 31, be in detail the rear lower of interior pivot plate 31b and the place ahead of tween drive shaft 95 tiltedly below, form open otch 31c downwards; At the inside face of pipe link 84, form the projection 84a that gives prominence to upward and be inserted in the otch 31c; Constitute stop gear 105 by these otch 31c and projection 84a.
Fig. 6 is the lateral plan (the 1st embodiment) that the main portion of connecting rod mechanism of the present invention is shown, and first connecting rod 81 extends generally along above-below direction; Second connecting rod 82 extends generally along fore-and-aft direction, is rearward to extend towards the back upper place slightly in detail; Pipe link 84 extends generally along above-below direction; Because second connecting rod 82 is that the center moves forward and backward with first pivot 28 and the 3rd pivot 93, so connecting rod mechanism 55 constitutes first connecting rod 81 parallel rod parallel substantially with pipe link 84.That is, allow power unit 56 moving along fore-and-aft direction by first connecting rod 81 and pipe link 84.
In addition, because second connecting rod 82 when fore-and-aft direction extends, is the center swing with second pivot 92, and the 4th pivot 94 resilient mountings move so allow power unit 56 along the vertical direction in pipe link 84 sides.
Fig. 7 is the lateral plan (first embodiment) of expression connecting rod mechanism of the present invention, the pipe link 84 of connecting rod mechanism 55 in order to be connected with the 3rd pivot 93, the 4th pivot 94 and tween drive shaft 95 respectively respectively in the upper end, bottom and pars intermedia offer through hole 84b, 84c, 84d, simultaneously, rubber bush 111,112,113 is entrenched among these through holes 84b, 84c, the 84d.
123a among the figure, 123b are the hole portions of the circular shape offered on the rubber 123 of the above and below of inner core 121 in order to make rubber 123 be easy to be out of shape up and down.
128a among the figure, 128b are the hole portions that offers on the rubber 128 at the place ahead of inner core 126 and rear in order to make rubber 128 be easy to be out of shape up and down.
If establishing the line segment of the axis 93a (representing axis 93a with bullet) that connects the 3rd pivot 93 and the axis 95a (representing axis 95a with bullet) of tween drive shaft 95 is 131, if the line segment of the axis 95a of connection tween drive shaft 95 and the axis 94a (representing axis 94a with bullet) of the 4th pivot 94 is 132, if connecting the line segment of the axis 94a of the axis 93a of the 3rd pivot 93 and the 4th pivot 94 is 133, then line segment 132 with respect to line segment 131 to rear view of vehicle inclination rake angle θ, thereby line segment 131 and line segment 132 are depicted the shape of ㄑ.Promptly, by the 4th pivot 94 is moved to rear view of vehicle with respect to the 3rd pivot 93 and tween drive shaft 95, can around the 4th pivot 94, not interfere with the car body side, be under the situation of not interfering with pivot plate 31,32 (with reference to Fig. 3) and pivotable frame 33,34 (with reference to Fig. 3) in detail, make the 4th pivot 94 along front and back and significantly mobile up and down.
Fig. 8 is along the section-drawing of the 8-8 line among Fig. 6 (first embodiment), the front upper portion bindiny mechanism 101 that connects first pivot 28 and first connecting rod 81 comprises: left-hand cylinder portion 141, it connects pivot plate 31 and installs, and this left-hand cylinder portion 141 has the hollow bulb 141a that is used to insert first pivot 28; Right side urceolus portion 142, it connects pivot plate 32 and installs; Right inner cylinder portion 143, it is threaded with this right side urceolus portion 142, and should right side inner cylinder portion 143 have the hollow bulb 143a that is used to insert first pivot 28; Inner core 144, it has the hollow bulb 144a that is used to insert first pivot 28; Needle bearing 146,147, it is entrenched in the both ends of the outer peripheral face of this inner core 144; Urceolus 148, it has formed inner peripheral surface 148b, the 148c bigger than hollow bulb 148a internal diameter in order to make these needle bearings 146,147 chimeric at the both ends of hollow bulb 148a; End-cap 152, an end face butt of itself and inner core 144, simultaneously, this end-cap 152 set up prevent intrusion needle bearings 146 such as dust be covered with dust 151, and offer the inserting hole 152a of first pivot 28; And end-cap 154, the other end butt of itself and inner core 144, simultaneously, this end-cap 154 set up prevent intrusion needle bearings 147 such as dust be covered with dust 153, and offer the inserting hole 154a of first pivot 28, and, this front upper portion bindiny mechanism 101 installs first connecting rod 81,81 by welding to form on the outer peripheral face of the both ends of urceolus 148, thereby, because urceolus 148 is by needle bearing 146,147 and with respect to inner core 144 rotations, so first connecting rod 81,81 is with respect to 28 swings of first pivot.And, the 156th, the nut that is threaded with the screw thread of the bolt shape end of first pivot 28.
The anterior bottom bindiny mechanism 102 that connects first connecting rod 81,81 and the 2nd pivot 92 comprises: inner core 161, and it has the hollow bulb 161a that is used to insert the 2nd pivot 92; Needle bearing 162,163, the both ends of the outer peripheral face of itself and this inner core 161 are chimeric; Urceolus 164, it has formed inner peripheral surface 164b, the 164c bigger than the internal diameter of hollow bulb 164a in order to make these needle bearings 162,163 chimeric at the both ends of hollow bulb 164a; End-cap 167, an end face butt of itself and inner core 161, simultaneously, this end-cap 167 set up prevent intrusion needle bearings 162 such as dust be covered with dust 166, and offer the inserting hole 167a of the 2nd pivot 92; End-cap 169, the other end butt of itself and inner core 161, simultaneously, this end-cap 169 set up prevent intrusion needle bearings 163 such as dust be covered with dust 168, and offer the inserting hole 169a of second pivot 92, thereby, because urceolus 164 is by needle bearing 162,163 and with respect to inner core 161 rotations, so second connecting rod 82 (with reference to Fig. 6) is with respect to 92 swings of second pivot.And, 81a be for make second pivot 92 by and the bolt insertion hole on first connecting rod 81, offered; The 171st, the nut that is threaded with the screw thread of the end of second pivot 92.
Fig. 9 is that second connecting rod 82 comprises along the section-drawing of the 9-9 line among Fig. 6 (first embodiment): left arm 175 and right arm 176, and it is installed on the urceolus 164 in the mode toward the mutual more expansion in rear by welding; Intermediate connection tube 177, it is installed in these left arms 175 and right arm 176 pars intermedia separately in the mode of extending in the overall width direction; And end arm 178, it is installed in the end of more giving prominence to car body left side side than the left arm 175 of this intermediate connection tube 177, thereby, support the 4th pivot 94 with these three as the left arm 175, right arm 176 and the end arms 178 that connect a supporting part.
Because pipe link 84 is positioned between left arm 175 (be first connect support portion) and the end arm 178 (be second be connected the support portion), and be supported on these left arms 175 and the end arm 178 by the 4th pivot 94, so can improve the rigidity of the support portion of pipe link 84.And 62a, 62b are the connecting rod connecting portions, and it is arranged on the crankcase 62 of power unit 56, and forwards outstanding.
Figure 10 is that it shows following structure along the section-drawing of the 10-10 line among Fig. 6 (first embodiment): by rubber bush 181,181, connecting rod connecting portion 62a, the 62b of power unit 56 is connected on the 4th pivot 94.
For pipe link 84, because supporting the through hole 84c of the 4th pivot 94 is configured to than the through hole 84b, the 84d that support the 3rd pivot 93 and tween drive shaft 95 near width over sides of car body direction center, promptly, the lower end part of pipe link 84 is in the position near width over sides of car body direction center, so can strengthen angle of roll.
Next, the effect to above-described stop gear 105 describes.
The (a) and (b) of Figure 11 are action diagrams (first embodiment) that the effect of stop gear of the present invention is shown.And the imaginary line among the figure represents to move state preceding or that swing is preceding.
In (a), for example when power unit 56 moves to car body the place ahead shown in hollow arrow, pipe link 84 is the center with the 3rd pivot 93, to the swing of the direction of arrow indication, and because rubber bush 112,113 distortion and under the effect of the antagonistic force of rubber, finally stopping.But, when pipe link 84 pendulum angle forwards further becomes big, big distortion takes place in rubber bush 112,113, is arranged on the exterior region 31j butt of the otch 31c of projection 84a on the pipe link 84 and pivot plate 31 sides, thereby pipe link 84 stops with respect to the swing of pivot plate 31.
In (b), for example when power unit 56 moves to the car body rear shown in hollow arrow, pipe link 84 is the center with the 3rd pivot 93, to the swing of the direction of arrow indication, and because rubber bush 112,113 distortion and under the effect of the antagonistic force of rubber, finally stopping.But, when pipe link 84 rearward pendulum angles further become big, big distortion takes place in rubber bush 112,113, the hinder marginal part 31k butt of the otch 31c of the projection 84a of pipe link 84 and pivot plate 31 sides, thus pipe link 84 stops with respect to the swing of pivot plate 31.
The (a) and (b) of Figure 12 are action diagrams (first embodiment) that the effect of the limiting device structure that is formed by stop gear of the present invention and pipe link is shown.And the imaginary line among the figure represents to move state preceding or that swing is preceding.
In (a), when power unit 56 is moved upward shown in hollow arrow, the 4th pivot 94 is moved upward, second connecting rod 82 is the direction swing of middle mind-set arrow indication with second pivot 92, the big distortion of rubber bush 112 generations when pipe link 84, thereby when the mobile change upward of the 4th pivot 94 is big, the inner core 121 of rubber bush 112 is near urceolus 122, so the rubber 123 between inner core 121 and urceolus 122 is significantly compressed and is produced big elastic force, by this elastic force the 4th pivot 94 is stopped with respect to the rising of pipe link 84.And, because rubber bush 111,113 distortion upward of pipe link 84 at this moment, come very little compared with rubber bush 112, so pipe link 84 is constant substantially with respect to the position relation of pivot plate 31, therefore we can say that power unit 56 miles of relative movement upward is exactly the miles of relative movement of the 4th pivot 94 with respect to pipe link 84 basically.
In (b), when power unit 56 is mobile downwards shown in hollow arrow, the 4th pivot 94 moves downwards, second connecting rod 82 is the direction swing of middle mind-set arrow indication with second pivot 92, the big distortion of rubber bush 112 generations when pipe link 84, thereby when the mobile change of the 4th pivot 94 is big, the inner core 121 of rubber bush 112 is near urceolus 122, so the rubber 123 between inner core 121 and urceolus 122 is significantly compressed and is produced big elastic force, by this elastic force the 4th pivot 94 is stopped with respect to the decline of pipe link 84.And, because rubber bush 111,113 distortion downwards of pipe link 84 at this moment, come very little compared with rubber bush 112, so pipe link 84 is constant substantially with respect to the position relation of pivot plate 31, therefore we can say that power unit 56 miles of relative movement downwards is exactly the miles of relative movement of the 4th pivot 94 with respect to pipe link 84 basically.
Figure 13 is the 3rd block diagram (second embodiment) that vehicle frame central portion of the present invention and connecting rod mechanism are shown, and it illustrates following structure: the pivot plate 231 that is made of outer pivot plate 231a and interior pivot plate 231b is installed on the main car frame 26 in left side and pivotable frame 33; Pivot plate 232 is installed on the main car frame 27 on right side and pivotable frame 34; First pivot 28 is installed on pivot plate 231a and the pivot plate 232 outside these; First connecting rod 81,81 is installed on this first pivot 28 and is made its swing freely; On these first connecting rods 81,81, swing second connecting rod 234 freely is installed by second pivot 92 (not shown); The 4th pivot 94 is installed in the rear end of this second connecting rod 234; On pivot plate 231a and the interior pivot plate 231b, swing pipe link 236 freely is installed outside by the 3rd pivot 233; The bottom swing of pipe link 236 is connected on the 4th pivot 94 freely; The spacing rubber 237 that is arranged on the upper end of pipe link 236 is configured between the rear wall 231c of main car frame 26 and interior pivot plate 231b.
By connecting rod mechanism 240 power unit 56 being supported to can be with respect to above-mentioned main car frame 26,27 and pivotable frame 33,34 freely swing (with reference to Fig. 1).
Figure 14 is the block diagram (second embodiment) that connecting rod mechanism of the present invention is shown, and connecting rod mechanism 240 mainly is made of first connecting rod 81,81, second pivot 92, second connecting rod 234, the 3rd pivot 233, pipe link 236 and the 4th pivot 94; In detail, also have: front upper portion bindiny mechanism 101, it connects first pivot 28 and first connecting rod 81; Front portion bottom bindiny mechanism 102, it connects first connecting rod 81 and second pivot 92.
Second connecting rod 234 is made of the left arm 241 and the right arm 242 that are installed on the urceolus 164, and supports the 4th pivot 94 by these left arms 241 and right arm 242.
Figure 15 is the lateral plan (second embodiment) that the main portion of connecting rod mechanism of the present invention is shown, and first connecting rod 81 extends generally along above-below direction; Second connecting rod 234 extends generally along fore-and-aft direction, is rearward to extend towards the back upper place slightly in detail; Pipe link 236 extends generally along above-below direction; Because second connecting rod 234 is that the center moves forward and backward with first pivot 28 and the 3rd pivot 233, so connecting rod mechanism 240 constitutes first connecting rod 81 parallel rod parallel substantially with pipe link 236.That is, allow power unit 56 moving at fore-and-aft direction by first connecting rod 81 and pipe link 236.
In addition, second connecting rod 234 extends generally along fore-and-aft direction, and be that swing at the center with second pivot 92; The 4th pivot 94 resilient mountings are in pipe link 236 sides, therefore, allow power unit 56 moving along the vertical direction.
Figure 16 is the lateral plan (second embodiment) that connecting rod mechanism of the present invention is shown, and the pipe link 236 of connecting rod mechanism 240 comprises: mainboard parts 243; Top cartridge unit 244, its perforation is installed in the pars intermedia of these mainboard parts 243; Bottom cartridge unit 246, its perforation is installed in the bottom of these mainboard parts 243; Upper secondary plate member 247, it is installed in the side of mainboard parts 243 and the outer peripheral face of top cartridge unit 244, and has L shaped cross section; Interior plate parts 248, it sets up the side that is installed in mainboard parts 243 and the inside face of upper secondary plate member 247, and is seen as ㄑ shape from the side; Lower secondary plate member 251, it also sets up and is installed on top cartridge unit 244 and bottom cartridge unit 246 outer peripheral face separately in the side that is installed on mainboard parts 243, and the cross section with コ shape; Rubber bush 253, the hollow bulb that it is entrenched in top cartridge unit 244 is used for being connected with the 3rd pivot 233; Rubber bush 254, the hollow bulb that it is entrenched in bottom cartridge unit 246 is used for being connected with the 4th pivot 94; And spacing rubber 237, it is installed in the top of interior plate parts 248.And 236A is the extension that the 3rd pivot 233 from pipe link 236 extends upward, and 237a is the front surface of spacing rubber 237, and 237b is the back side of spacing rubber 237.
Spacing rubber 237 is in front surface 237a and main car frame 26 butts, the parts of the rear wall 231c butt of back side 237b and interior pivot plate 231b, therefore, this spacing rubber 237 is the elastic bodys that play a role as stop gear 266, its at pipe link 236 as swing during swing, to the swing of pipe link 236 cushion, antivibration and carry out spacing.
That is, the rear wall 231c of above-mentioned spacing rubber 237, interior pivot plate 231b and main car frame 26 constitute stop gear 266; Rear wall 231c and main car frame 26 are arranged on the restrictions on the car body.
As if the line segment between the axis 94a (representing axis 94a with deceiving round spot) of axis 233a that establishes connection the 3rd pivot 233 (representing axis 233a with black round spot) and the 4th pivot 94 is 267, if the straight line by axis 94a is 265, if by axis 94a and the straight line vertical with straight line 265 is 268, then line segment 267 and line segment 265 form the angle [alpha] of regulation.
The bearing of trend of straight line 268, in detail, the direction of arrow A is the direction that the 4th pivot 94 is subjected to antagonistic force when vehicle quickens, and the direction of arrow B is the stressed direction of (will this moment state be called 1G state by bus) the 4th pivot 94 when having occupant (1) by bus on the vehicle; The direction that straight line 265 extends is the direction of vibration of driving engine 59 (with reference to Fig. 1).In addition, the inboard of the continuous curve among the figure 271 and this curve 271 is movable ranges of the 4th pivot 94.
By on the rubber 263 of the rubber bush 254 that the 4th pivot 94 is carried out resilient mounting, direction along straight line 265 is provided with the 263a of hole portion, 263b, big spring constant and big hysteresis support can the antagonistic force when quickening with respect to vehicle, in addition, support with the spring constant little, thereby can suppress vibration effectively with respect to engine vibration.
Figure 17 is that it shows following structure along the section-drawing of the 17-17 line among Figure 15: connecting rod connecting portion 62a, the 62b with power unit 56 is connected on the 4th pivot 94 by rubber bush 281,281.
231e among the figure, 231f are in order to make the 3rd pivot 233 by being opened on the outer pivot plate 231a and the bolt insertion hole on the interior pivot plate 231b; The 291st, the nut that is threaded with the screw thread of the 3rd pivot 233 ends; The 294th, make the 4th pivot 94 by and be configured in the axle sleeve of 281,281 of left and right sides rubber bushs; 296,297 axle sleeves that are mounted in second connecting rod 234 rear ends; 298 to be arranged on a side the inner core 284 of rubber bush 281 and the axle sleeve 301 between the axle sleeve 297 be in order to insert and fixed limit rubber 237 (with reference to Figure 16) and be arranged on the groove of interior plate parts 248.
Figure 18 is the block diagram (the 3rd embodiment) that connecting rod mechanism of the present invention is shown, to above shown in first embodiment structure identical with second embodiment, the mark same numeral and omits its detailed description.
This connecting rod mechanism 310, first pivot 28 and back vibration absorption unit 58 (with reference to Fig. 1) constitute the power unit suspension gear 16C that power unit 56 (with reference to Fig. 1) is carried out suspension.
Second connecting rod 312 comprises: left arm 317 and right arm 318, and it is installed on the cartridge unit 343; Intermediate connection tube 319, it is installed in these left arms 317 and right arm 318 each pars intermedia separately, and extends along the overall width direction, in this second connecting rod 312, supports the 4th pivot 94 with left arm 317 and right arm 318.
Figure 19 is the section-drawing along the 19-19 line among Figure 18, the front upper portion bindiny mechanism 314 that connects first pivot 28 and first connecting rod 311,311 is made of upper left quarter bindiny mechanism 321 and upper right quarter bindiny mechanism 322 and the cartridge unit 323 that is separately positioned between these upper left quarter bindiny mechanisms 321 and the upper right quarter bindiny mechanism 322, because upper left quarter bindiny mechanism 321 and upper right quarter bindiny mechanism 322 left-right symmetric, its essential structure is identical, therefore, only upper left quarter bindiny mechanism 321 is described.
Upper left quarter bindiny mechanism 321 comprises: inner cylinder portion 325, and it has the hollow bulb 325a that is used to insert first pivot 28; Needle bearing 326, it is entrenched in the outer peripheral face of this inner cylinder portion 325; Urceolus 327, it has formed and has been used for the inner peripheral surface 327a chimeric with this needle bearing 326; End-cap 331, its set up prevent intrusion needle bearings 326 such as dust be covered with dust 328, and offer the inserting hole 331a of first pivot 28, and be clamped between outer pivot plate 231a (is exactly pivot plate 232 for upper right quarter bindiny mechanism 322) and the inner cylinder portion 325, and, this upper left quarter bindiny mechanism 321 is installed in first connecting rod 311 on the outer peripheral face of urceolus 327 by welding, and, urceolus 327 rotates with respect to inner core 325 by needle bearing 326, thereby first connecting rod 311 is with respect to 28 swings of first pivot.And, the 333rd, in order to prevent intrusion needle bearings 326 such as dust and be arranged on being covered with dust between inner cylinder portion 325 and the urceolus 327.
The anterior bottom bindiny mechanism 316 that connects the first connecting rod 311,311 and second pivot 92 is made of lower left quarter bindiny mechanism 341, right lower quadrant bindiny mechanism 342 and the cartridge unit 343 that is separately positioned between these lower left quarter bindiny mechanisms 341 and the right lower quadrant bindiny mechanism 342, because lower left quarter bindiny mechanism 341 and right lower quadrant bindiny mechanism 342 left-right symmetric, its essential structure is identical, therefore, only lower left quarter bindiny mechanism 341 is described.
Lower left quarter bindiny mechanism 341 comprises: inner core 345, and it has the hollow bulb 345a that is used to insert second pivot 92; Needle bearing 346, it is entrenched in the outer peripheral face of this inner core 345; Urceolus 347, it has formed and has been used for the inner peripheral surface 347a chimeric with this needle bearing 346; End-cap 351, its set up prevent intrusion needle bearings 346 such as dust be covered with dust 348, and offer the inserting hole 351a of second pivot 92, and be clamped between the head (is exactly nut 171 for right lower quadrant bindiny mechanism 342) and inner cylinder portion 345 of second pivot 92, this lower left quarter bindiny mechanism 341 is installed in first connecting rod 311 on the outer peripheral face of urceolus 347 by welding, and, the inner core 345 and second pivot 92 rotate with respect to urceolus 347 by needle bearing 346, thereby the second connecting rod 312 that is welded on the inner core 345 is swung with respect to first connecting rod 311.And, the 353rd, in order to prevent intrusion needle bearings 346 such as dust and be arranged on being covered with dust between inner core 345 and the urceolus 347.
Figure 20 is the lateral plan (the 4th embodiment) of expression connecting rod mechanism of the present invention, to Fig. 1～identical structure of first embodiment shown in Figure 12, the mark same numeral and omits its detailed description.
Connecting rod mechanism 360 comprises: first connecting rod 81,81 (label 81 of side nearby only is shown); Second pivot 92; Second connecting rod 358, its swing is installed on this second pivot 92 freely; The 3rd pivot 93; The 4th pivot 94; And pipe link 361, its swing is installed on the 3rd pivot 93 freely, and is connected with the 4th pivot 94.
367a among the figure, 367b are the hole portions that offers on the rubber 367 at the place ahead of inner core 126 and rear in order to make rubber 367 be easy to be out of shape up and down, are the parts that has about the shape of line segment 131 symmetries.
Figure 21 is along the section-drawing of the 21-21 line among Figure 20 (the 4th embodiment), the front upper portion bindiny mechanism 371 that connects first pivot 28 and first connecting rod 81 comprises: left-hand cylinder portion 141, its perforation is installed on the pivot plate 31, and has the hollow bulb 141a that is used to insert first pivot 28; Right side tube portion 372, its perforation is installed on the pivot plate 32, and has the hollow bulb 372a that is used to insert first pivot 28; Inner core 144, it has the hollow bulb 144a that is used to insert first pivot 28; Left side rubber bush 373, it is used to make first pivot 28 to insert wherein, and be configured in left-hand cylinder portion 141 and inner core 144 separately between; Right rubber bush 374, it is used to make first pivot 28 to insert wherein, and be configured in right tube portion 372 and inner core 144 separately between; Urceolus 148, it is for chimeric and form inner peripheral surface 148b, the 148c bigger than hollow bulb 148a internal diameter at the both ends of hollow bulb 148a with these left rubber bushs 373 and right rubber bush 374, this front upper portion bindiny mechanism 371 is that the outer peripheral face at the both ends of urceolus 148 is installed first connecting rod 81,81 by welding, and, urceolus 148 rotates with respect to inner core 144 by left rubber bush 373 and right rubber bush 374, thereby first connecting rod 81,81 is with respect to 28 swings of first pivot.
Left side rubber bush 373 comprises: inner core 376, and it has the hollow bulb 376a that is used to insert first pivot 28; Urceolus 377, it is configured to surround this inner core 376, simultaneously, with the inner peripheral surface 148b of urceolus 148 chimeric on; Rubber 378, it is bonding with inner core 376 and urceolus 377 respectively.
Right rubber bush 374 comprises: inner core 381, and it has the hollow bulb 381a that is used to insert first pivot 28; Urceolus 382, it is configured to surround this inner core 381, and is simultaneously, chimeric with the inner peripheral surface 148c of urceolus 148; Rubber 383, it is bonding with inner core 381 and urceolus 382 respectively.
Figure 22 is that second connecting rod 358 comprises along the section-drawing of the 22-22 line among Figure 20 (the 4th embodiment): be roughly the principal arm 386 of U word shape, its by welded and installed on urceolus 164, and toward the mutual more expansion in rear; Auxiliary 387, it is installed in the left side of this principal arm 386, and, in this second connecting rod 358, support the 4th pivot 94 with these principal arms 386 and auxilliary arm 387.
Because pipe link 361 is between principal arm 386 and auxiliary 387, and support by the 4th pivot 94, so can improve the rigidity of the support portion of pipe link 361 by these principal arms 386 and auxiliary 387.
Among the figure 391 is external bushings, and it is pressed into respectively among through hole 62e, the 62f, and this through hole 62e, 62f are separately positioned on connecting rod connecting portion 62a, the 62b of crankcase 62; The 392nd, inner covering, itself and the 4th pivot 94 are chimeric, and are entrenched in sliding freely in the external bushing 391.
Figure 23 is along the section-drawing of the 23-23 line among Figure 20 (the 4th embodiment), it illustrates following structure: on the 4th pivot 94, be connected with connecting rod connecting portion 62a, the 62b of power unit 56 by the metal lining 393,393 that constitutes by external bushing 391 and inner covering 392, in addition, on the 4th pivot 94, be connected with pipe link 361 by rubber bush 362.
The bottom of pipe link 361 is such parts, it offers the mounting hole 361b that has same inner diameter with lining mounting hole 361a, chimeric in this mounting hole 361b have a limiting component 396, and, between lining mounting hole 361a and mounting hole 361b, form outstanding to the inside limiting device 361c.
Limiting component 396 is by the cartridge unit 397 that is entrenched among the mounting hole 361b, and the spacing rubber 398 of using that is bonded in these cartridge unit 397 inboards constitutes, spacing internal diameter with rubber 398 is bigger than the external diameter of the inner core 364 of rubber bush 362, and under the common state that does not act on big load on the rubber bush 362, there is the gap between with rubber 398 and inner core 364 spacing.Above-mentioned rubber bush 362, limiting component 396 and limiting device 361c constitute the bush type stop gear.
The (a) and (b) of Figure 24 are action diagrams that the effect of bush type stop gear of the present invention is shown.
(a) be illustrated in the state that does not have used load between the 4th pivot 94 and the pipe link 361.The rubber 366 of rubber bush 362 is indeformable, thereby has clearance C 1 between the spacing inner core 364 with rubber 398 and rubber bush 362 of limiting component 396.In addition, between the inner peripheral surface 361d of limiting device 361c and inner core 364, there is clearance C 2, and has the relation of C2＞C1.
(b) expression the 4th pivot 94 is with respect to the be shifted state of displacement δ of pipe link 361.Show following state this moment, that is: the rubber 366 of rubber bush 362 distortion, the spacing of limiting component 396 is out of shape slightly and is connected to inner core 364 with rubber 398, and inner core 364 be connected to limiting device 361c (that is, C2=0), thus bigger displacement is limited.
Like this, by combination limiting component 396 on rubber bush 362, can make elastic behavior from the displacement way, produce big variation; The Change Example of elastic behavior be as can easily carrying out by changing spacing internal diameter with rubber 398, thereby can increase the Design freedom of elastic behavior.
In addition, limiting device 361c can easily form by perforate, thereby can suppress cost.
And limiting device 361c also can constitute with the pipe link split, and is clamped between rubber bush 362 and the limiting component 396.
As above Fig. 1, Fig. 6 and shown in Figure 7, of the present invention first is characterised in that, on power unit 56, has driving engine 59 integratedly and as the trailing wheel 14 of drive wheel, power unit 56 is swung the pivot plate 31 that is suspended in freely as car body, on 32, at pivot plate 31, first connecting rod 81 is installed in swing freely on 32, an end of 81, simultaneously, make first connecting rod 81,81 extend generally along above-below direction, at these first connecting rods 81, an end of second connecting rod 82 is installed in 81 other end swing freely, simultaneously, second connecting rod 82 is extended generally along fore-and-aft direction, other end swing at this second connecting rod 82 connects power unit 56 freely, the one end swing of pipe link 84 is installed on the pivot plate 31 freely, be mounted in detail on the interior pivot plate 31b, power unit 56 is installed in other end swing at this pipe link 84 freely, on interior pivot plate 31b and pipe link 84, stop gear 105 is set, be used for restricted power unit 56 moving along fore-and-aft direction, line segment 133 will be arranged on being connected with the 4th pivot 94 as power unit side adapter shaft as the 3rd pivot 93 of car body side adapter shaft on the pipe link 84, this line segment 133 extends along the vertical direction, simultaneously, support the 4th pivot 94 by pipe link 84 by rubber bush 112 as elastomeric element.
Thereby, except by stop gear 105 restricted power unit 56 along the moving of fore-and-aft direction, the elastic force that is produced during rubber bush 112 distortion that can also be by being arranged on the 4th pivot 94 on the pipe link 84 comes restricted power unit 56 moving along the vertical direction, thereby when can making power unit 56 have the one-movement-freedom-degree of fore-and-aft direction and above-below direction two directions, can also seesawing and up-and-down movement by pipe link restricted power unit 56, therefore, can simplify the limiting device structure, cut down the parts number, thus can cost-cutting.
Of the present invention second is characterised in that, on pipe link 84, between the 3rd pivot 93 and the 4th pivot 94, has tween drive shaft 95 as the second car body side adapter shaft, by rubber bush 112 the 4th pivot 94 is connected on the power unit 56, tween drive shaft 95 is connected on the interior pivot plate 31b by rubber bush 113 as elastomeric element as elastomeric element.
Thus,, compare with the situation of a single elastomeric element and can improve pooling feature, thereby absorb bigger vibration by rubber bush 111～113.
The of the present invention the 3rd is characterised in that, as shown in Figure 5 and Figure 6, stop gear 105 comprises: be arranged on the projection 84a on the pipe link 84; And for this projection 84a insertion being arranged on the otch 31c on the interior pivot plate 31b.
Thereby, for example wait owing to wearing and tearing under the situation that needs to change at projection 84a, compare with the existing situation that is arranged on power unit like that, not only be easy to change, and can stop gear 105 be set enough simple structures.
The of the present invention the 4th is characterised in that, as shown in figure 16, stop gear 266 comprises: as elastomeric spacing rubber 237, it is fixed on the end of the extension 236A of pipe link 236, and this extension 236A is different from the direction extension as the 4th pivot 94 of power unit side adapter shaft from the 3rd pivot 233 edges as car body side adapter shaft; Main car frame 26, it is arranged on restrictions on the car body as being used for these spacing rubber 237 butts; Rear wall 231c with interior pivot plate 231b.
For example, by changing the shape of spacing rubber 237, or the hardness of spacing rubber 237, can be in by spacing rubber 237 performance bufferings, vibration-isolating effect, easily regulate the oscillating quantity of the front and back of power unit 56, and then can be when hope is guaranteed oscillating quantity biglyyer, reply easily.
The of the present invention the 5th is characterised in that, as above Fig. 1, Fig. 6 and shown in Figure 7, main support 61 is arranged on the bottom of power unit 56.
Thereby,, also can improve pooling features, thereby be easy to absorb the vibration of power unit 56, and then can reduce the vibration that passes to vehicle frame 11 by three rubber bushs 111～113 of pipe link 84 sides even make under the upright state of main support 61.
The of the present invention the 6th is characterised in that, constitutes elastomeric element by rubber bush, and, on the rubber bush 112 of the 4th pivot 94, the 4th pivot 94 have the 123a of hole portion, 123b up and down, thereby with compare at the car body fore-and-aft direction, have soft character at above-below direction.
Thereby the rubber bush 112 of the 4th pivot 94 can absorb by the caused vibration of the up-and-down movement of power unit 56 energetically by simple structure, thereby can make the up-down vibration of power unit 56 be difficult to be delivered to vehicle frame 11.
The of the present invention the 7th is characterised in that, constitutes elastomeric element by rubber bush, and, on the rubber bush 113 of tween drive shaft 95, have the 128a of hole portion, 128b in the front and back of tween drive shaft 95, thus with compare at above-below direction, have soft character at the fore-and-aft direction of car body.
Thereby the rubber bush 113 of tween drive shaft 95 can absorb by the caused vibration of seesawing of power unit 56 energetically by simple structure, thereby can make the porpoise of power unit 56 be difficult to be delivered to vehicle frame 11.
The of the present invention the 8th is characterised in that, by the line segment 131 that connects the 3rd pivot 93 and tween drive shaft 95, and the line segment 132 formation ㄑ shapes that connect tween drive shaft 95 and the 4th pivot 94.
Thereby,, when can preventing that pipe link 84 and vehicle frame 11 from interfering, can also set the oscillating quantity of the 4th pivot 94 greatly because the 4th pivot 94 is configured to leave with vehicle frame 11.
The of the present invention the 9th is characterised in that, as shown in Figure 3, makes pipe link 84 be single one, and only is arranged on a side of vehicle frame 11.
Thus, connecting rod mechanism 105 is simplified, thereby can be cut down the parts number, can cost-cutting.
The of the present invention the tenth is characterised in that, forms pipe link 84 by forging.
Thereby, on the basis of the projection 84a that can form to high strength stop gear 105, can also alleviate the weight of pipe link 84.
The of the present invention the 11 is characterised in that, as shown in Figure 9, left arm 175, right arm 176 and the end arm 178 of a plurality of connections of the conduct support portion that is had by second pivot 92 support the 4th pivot 94, and, by in a plurality of connections support portion 175,176,178 as first left arm 175 that connects support sector, with also be positioned at than this left arm 175 car body foreign side, as the second end arm 178 that is connected the support portion bar 84 that is clamped and connected, and be connected on the 4th pivot 94.
Thereby, because pipe link 84 so can improve the rigidity of the part of supporting linkage 84, can be brought into play the effect of pipe link 84 by left arm 175 and 178 clampings of end arm and support more reliably.
The of the present invention the 12 is characterised in that, as Figure 23 and shown in Figure 24, elastomeric element between the 4th pivot 94 and pipe link 361 is made of a plurality of, promptly by rubber 366 with spacingly constitute with rubber 398, and, with these rubber 366 and spacing arrange vertically and dispose with rubber 398 in, have the limiting device 361c as position-limiting unit, this limiting device 361c is arranged on rubber 366 and spacing with between the rubber 398 for rubber 366 and spacing deflection with rubber 398 are set in below the predetermined value.
Thereby, can set rubber 366 and spacing deflection by simple structure with rubber 398, simultaneously, owing to can deflection freely be changed by the shape that changes limiting device 361c, so can increase Design freedom.
And, in the present embodiment, as shown in Figure 3, pipe link 84 is arranged on the left side of vehicle frame 11, but is not limited in this, also can be arranged on the right side of vehicle frame 11.In addition, be set by the elasticity modulus that changes the rubber 123,128 in the rubber bush 112,113 and be the best, can save the 123a of hole portion, 123b, 128a, 128b, in addition,, also can not need hole portion according to the character of vehicle.
In addition, as shown in figure 19, part about respectively urceolus 327,345 being divided into, but part about also can only the side in the urceolus 327,345 being divided into.In addition, about first embodiment shown in Figure 8 and second embodiment shown in Figure 14, about also at least one side in the urceolus 148,164 can being divided into, and the urceolus 148,164 after will cutting apart with link couples together.
Industrial applicibility
Power unit suspension gear of the present invention is well suited for minitype motorcycle type vehicle.
Claims (12)
1. the power unit suspension gear of a minitype motorcycle type vehicle is characterized in that,
On power unit, have driving engine and drive wheel integratedly; Be suspended in described power unit swing on the car body freely; The one end swing of first connecting rod is installed on the described car body freely, simultaneously, described first connecting rod is extended generally along above-below direction; One end of second connecting rod is swung the other end that is installed in this first connecting rod freely, simultaneously, described second connecting rod is extended generally along fore-and-aft direction; Described power unit swing is connected to freely the other end of this second connecting rod;
The one end swing of pipe link is installed on the described car body freely; Described power unit swing is installed in freely the other end of this pipe link; On described car body and described pipe link, stop gear is set, is used to limit described power unit moving along fore-and-aft direction; Make and carry out the bonded assembly line segment and extend along the vertical direction, simultaneously, support described power unit side adapter shaft by elastomeric element by described pipe link to being located at car body side adapter shaft on the described pipe link and power unit side adapter shaft.
2. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 1 is characterized in that,
Described pipe link has the second car body side adapter shaft between described car body side adapter shaft and described power unit side adapter shaft; By elastomeric element described power unit side adapter shaft is connected on the described power unit; By elastomeric element, the described second car body side adapter shaft is connected on the described car body.
3. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 1 or 2 is characterized in that,
Described stop gear is by the projection that is arranged on the described pipe link, and is used to make this projection to insert and the otch that is arranged on the described car body constitutes.
4. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 1 is characterized in that,
Described stop gear comprises: elastic body, and it is fixed on the end of the extension of described pipe link, and described extension extends to the direction different with described power unit side adapter shaft from described car body side adapter shaft; And restrictions, it is used for being arranged on described car body with this elastic body butt.
5. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 1 is characterized in that,
Main support is arranged on the bottom of described power unit.
6. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 2 is characterized in that,
Described elastomeric element is made of rubber bush; The rubber bush of described power unit side adapter shaft has hole portion up and down power unit side adapter shaft, thus with compare at the car body fore-and-aft direction, have soft character along the vertical direction.
7. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 2 is characterized in that,
Described elastomeric element is made of rubber bush; The rubber bush of the described second car body side adapter shaft has hole portion in the front and back of the second car body side adapter shaft, thus with compare at above-below direction, have soft character along the car body fore-and-aft direction.
8. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 2 is characterized in that,
Connect the line segment between described car body side adapter shaft and the described second car body side adapter shaft,, form the shape of ㄑ with the line segment that is connected between described second car body side adapter shaft and the described power unit side adapter shaft.
9. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 1 is characterized in that,
Described pipe link is single one, and only is arranged on a side of described car body.
10. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 1 is characterized in that,
Described pipe link forms by forging.
11. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 1 is characterized in that,
Support described power unit side adapter shaft by a plurality of connections support portion that described second connecting rod had; Described pipe link is connected the support portion and first is connected the second connection support portion clamping that the support portion also is positioned at car body foreign side than this by first in the described connection support portion, and is connected on the described power unit side adapter shaft.
12. the power unit suspension gear of minitype motorcycle type vehicle as claimed in claim 1 is characterized in that,
Described elastomeric element between described power unit side adapter shaft and described pipe link is made of a plurality of, and with these elastomeric elements alignment arrangements vertically, simultaneously, described power unit suspension gear has position-limiting unit, and this position-limiting unit is set at below the predetermined value between described a plurality of elastomeric element for the deflection with described elastomeric element is set in.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005252654 | 2005-08-31 | ||
| JP2005252654 | 2005-08-31 | ||
| JP2006121774 | 2006-04-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1923610A CN1923610A (en) | 2007-03-07 |
| CN100586787C true CN100586787C (en) | 2010-02-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610126019A Expired - Fee Related CN100586787C (en) | 2005-08-31 | 2006-08-30 | Power unit suspension gear for minitype motorcycle type vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100586787C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI480199B (en) * | 2012-11-13 | 2015-04-11 | Kwang Yang Motor Co | Locomotive engine hanger structure |
| JP7155738B2 (en) * | 2018-08-13 | 2022-10-19 | スズキ株式会社 | Frame structure and scooter type motorcycle |
| CN115180060A (en) * | 2022-08-02 | 2022-10-14 | 浙江钱江摩托股份有限公司 | Suspension connecting structure of motorcycle engine |
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2006
- 2006-08-30 CN CN200610126019A patent/CN100586787C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1923610A (en) | 2007-03-07 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |