CN1286671C

CN1286671C - Hookup

Info

Publication number: CN1286671C
Application number: CN 02121639
Authority: CN
Inventors: 高柳真二; 幕田洋平
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2001-07-16
Filing date: 2002-05-30
Publication date: 2006-11-29
Anticipated expiration: 2022-05-30
Also published as: JP2003026068A; JP4755367B2; CN1397466A

Abstract

The present invention relates to a hookup. A swing arm 44 is extended forward from the front vehicle body. A bolt 73 as a king pin inclined forward so that the upper end is positioned in front of the lower end is installed in a front part of this swing arm 44. A laterally extending cross beam 64 is turnably installed on this bolt 73. Front wheels 13 and 14 are rotatably installed on both ends of this cross beam 64. The invention can improve turning performance by inclining a front vehicle body in the turning direction according to steering handle operation when a vehicle turns, and moving the center of gravity of the vehicle in the turning direction, that is, the turning side side direction in a getting-on state of a driver.

Description

Suspension gear

Technical field

The present invention relates to a kind of suspension gear that is suitable for improving the turning efficiency of vehicle.

Background technology

Well-known vehicle possesses and can connect the car body of front side and the car body of rear side rotationally, simultaneously, dispose about on the car body of front side can controlling party to the suspension gear of 2 wheels.With Fig. 9 and Figure 10 this vehicle is described.

Fig. 9 is the lateral plan that possesses the vehicle of existing suspension gear, vehicle 100 is a kind of four-wheeleds, this four-wheeled is equipped with steering hardware 103 and front-end equipment 104 in the front portion of vehicle frame 101,2 front-wheels 105,105 (inboard front-wheel 105 is not shown) side about steering hardware 103 is connected, simultaneously, hang front-wheels 105,105 with front-end equipment 104, by connecting device 106 with power unit 107 and by this power unit 107 drive about 2 trailing wheels 108,108 can be connected the rear portion of vehicle frame 101 rotationally.

Figure 10 is the exploded perspective view that is used to illustrate existing suspension gear, front-end equipment 104 has following structure: front vehicle frame 113 is installed on the anterior installation portion 111,111,112,112 of the preceding bottom that is arranged at vehicle frame 101, respectively left and right sides swing arm 116,116 can swingingly be installed in respectively on the arm installation portion 114,114 that is arranged on this front vehicle frame 113, (king pin 117 is not shown by each king pin (stub) 117,117.) (hinge 118 is not shown with hinge 118,118.) being installed in the front end of these swing arms 116,116 revolvably, the front-wheel 105,105 that will rotate is installed on these hinges 118, and the both ends of preceding shock absorber 121,121 are set up respectively in front vehicle frame 113 and each swing arm 116.

The problem that invention will solve

For example, if vehicle 100 turns to, then owing to centnifugal force vehicle 100 tilts to the direction opposite with steering direction.That is, the center of gravity of car body moves to the direction opposite with steering direction.If improve turning velocity, then car body further tilts, so, must reduce turning velocity and travel.

Because motor bike or front-wheel are the three-wheel vehicles of 1 wheel, when turning to, car body is tilted to the direction that turns to, the center of gravity of car body is moved, so can reduce the influence that acts on the centnifugal force on the car body, can turn to reposefully.

Therefore, it is generally acknowledged, even above-mentioned vehicle 100 if the center of gravity of car body is moved to steering direction, then also can improve turning efficiency.

Summary of the invention

Purpose of the present invention is by improveing the turning efficiency that suspension gear improves vehicle.

In order to achieve the above object, the invention provides a kind of suspension gear, this device is used for following vehicle: can connect front vehicle body and the aftercarriage that is arranged on its rear freely rotationally, the vehicle of front-wheel is set respectively about front vehicle body, from front vehicle body extension arm forwards, the king pin that turns forward is installed in front portion at this arm, make the upper end more be positioned at the place ahead than the lower end, it is characterized in that: the crossbeam that will extend to the left and right is installed on this king pin revolvably, at the two ends of this crossbeam revolvable front-wheel is installed, king pin is turned forward; Be provided with the handlebar that is installed in rotation on the front vehicle body, this handlebar links by linking parts and this crossbeam, turns to thereby can handle handlebar.

Because king pin is turned forward, so, when Vehicular turn, along with handling handlebar, front vehicle body is tilted to steering direction, can make center of gravity that chaufeur sits the vehicle under the state onboard to steering direction, promptly move, can improve turning efficiency to the side that turns to a side.

Description of drawings

Fig. 1 is the lateral plan that possesses the vehicle of suspension gear of the present invention.

Fig. 2 is the lateral plan that expression is equipped with the body construction of suspension gear of the present invention.

Fig. 3 is the block diagram that possesses the car body of suspension gear of the present invention.

Fig. 4 is the exploded perspective view that is used to illustrate suspension gear of the present invention and steering hardware.

Fig. 5 is the lateral plan that is used to illustrate the main position of suspension gear of the present invention.

Fig. 6 is the 1st fundamental diagram that is used to illustrate the effect of suspension gear of the present invention.

Fig. 7 is the 2nd fundamental diagram that is used to illustrate the effect of suspension gear of the present invention.

Fig. 8 is the 3rd fundamental diagram that is used to illustrate the effect of suspension gear of the present invention.

Fig. 9 is the lateral plan that possesses the vehicle of existing suspension gear.

Figure 10 is the exploded perspective view that is used to illustrate existing suspension gear.

The working of an invention form

Followingly embodiments of the invention are described according to accompanying drawing.And, suppose that view is to see to the direction of symbol.

Fig. 1 is the lateral plan that possesses the vehicle of suspension gear of the present invention, four-wheeled 10 is a kind of like this vehicles: be installed on the front vehicle body 16 with bar-handle 11 with the front-wheel 13,14 (inboard front-wheel 14 is not shown) that this bar-handle 11 is controlled, the trailing wheel 21,22 (inboard trailing wheel 22 is not shown) of using the power unit of being made up of driving engine and change-speed box 18, the supporting arm 19 that supports this power unit 18 and being driven by power unit 18 constitutes aftercarriage 24, connects this front vehicle body 16 and aftercarriage 24 rotationally with connecting device 26.

At this, the 31st, as the floor of the stretcher of chaufeur, the 32nd, driver's seat, the 33rd, Windshield, the 34th, ceiling, 35,35 (inboard symbol is not shown) are the pillars of supporting ceiling 34, the 36th, and baggage container, the 37th, connect the power unit 18 of aftercarriage 24 and the back suspension unit of supporting arm 19.

Fig. 2 is the lateral plan that expression is equipped with the body construction of suspension gear of the present invention, and front vehicle body 16 possesses: lateral plan roughly is the vehicle frame 41 of L word shape; Carry out the transition to the steering hardware 42 of front-wheel 13,14 (inboard front-wheel 14 is not shown) side configuration from the front upper part of this vehicle frame 41; Preceding bottom bonded assembly suspension gear 43 with vehicle frame 41.

Suspension gear 43 possesses: as the swing arm 44 of the arm that is installed in swingably on the vehicle frame 41, extends to car body the place ahead simultaneously; The upper end is installed in this swing arm 44, simultaneously the lower end is installed in the forward mounting unit 45 on the vehicle frame 41.

Connecting device 26 is by constituting with the lower part: extend, be installed in the S. A. (not shown) on the vehicle frame 41 along the car body fore-and-aft direction; Play the effect of the bearing that holds this S. A., simultaneously with the supporting arm 19 bonded assembly shells 46 of aftercarriage 24; Be used to make it to play shock absorber during rotation relatively and be configured in elastic element (not shown) between S. A. and the shell 46 at this S. A. and shell 46.

Fig. 3 is the block diagram that possesses the car body of suspension gear of the present invention, and the front portion that is illustrated in vehicle frame 41 is provided with upright portion 51, and the upper end of upright portion 51 is provided with head pipe 52 on this, and rotating, as to constitute steering hardware 42 handlebar axis 55 is installed on this pipe 52.

Handlebar axis 55 is mounted in the parts on the bar-handle 11 (with reference to Fig. 1).

Vehicle frame 41 is with connecting device 26 rear-mounted parts by support 57.

Fig. 4 is the exploded perspective view that is used to illustrate suspension gear of the present invention and steering hardware, its state is: be provided with connecting portion 55a in the lower end of handlebar axis 55, can rotationally connecting portion 61a, the 61a that is arranged on the 1st connecting rod 61 1 ends be installed on this connecting portion 55a, can rotate and can be swingingly an end of the 2nd connecting rod 63 be installed in the other end of the 1st connecting rod 61, can be swingingly the connecting portion 66a that is arranged on the upper arm parts 66 of the crossbeam 64 that connects left and right sides front-

wheel

13,14 be installed on connecting portion 63a, the 63a of the other end that is arranged at the 2nd connecting rod 63 by ball pivot 62.

These bar-handles 11 (with reference to Fig. 1), handlebar axis the 55, the 1st connecting rod 61, ball pivot the 62, the 2nd connecting rod 63 are respectively the parts that constitute steering hardware 42.

In addition, state is shown in the figure: the base portion 71 of swing arm 44 is installed on the

arm installation portion

68,68 of vehicle frame 41, in the bearing portion 72 that bolt 73 by being used as king pin rotatably is installed in the front end that is arranged at this swing arm 44 with the upper arm parts 66 and the lower arm part 74 of crossbeam 64, the upper end of forward mounting unit 45 is installed in the front end of the L word shape arm 76 that upwards erects from the base portion 71 of swing arm 44, the lower end of this forward mounting unit 45 is installed in the bottom of going up upright portion 51 of vehicle frame 41.

At this, the 77th, screw nut at the front end of

bolt

73,78,78 are mounted in the axletree supporting member at the two ends of

crossbeam

64, and 81,82 is respectively the axletree of front-

wheel

13,14.

Like this, suspension gear 43 is by constituting with the lower part: swing arm 44; Forward mounting unit 45; Bolt 73 and nut 77; The crossbeam 64 of upper arm parts 66 and lower arm part 74 is installed; Axletree supporting

member

78,78; Axletree 81,82.

Fig. 5 is the lateral plan that is used to illustrate the main position of suspension gear of the present invention, represents with partial cutaway.

Suspension gear 43 makes and connects swing arm 44 and bolt 73 crossbeam 64, that the be used as king pin angle θ that turns forward, and top and bottom are compared, and the upper end is positioned at the place ahead of car body, and (direction of hollow arrow (front) indication is the place ahead of car body.)。

Promptly, make bearing portion 72 relative plumb bob vertical 83 forward only tilt angle theta be installed in the front end of swing arm 44, the upper arm parts 66 and the pin through hole on the lower arm part 74 84,85 that are opened in crossbeam 64 are respectively overlapped with the end of bearing portion 72, make bolt 73 pass in pin through hole 84, the bearing portion 72 and pin through hole 85, nut 77 is screwed on the screw thread that is formed at bolt 73 front ends from pin through hole 84 1 sides.

Below the effect of above-described suspension gear 43 is described.

Fig. 6 (a) and (b) are the 1st fundamental diagrams that are used to illustrate the effect of suspension gear of the present invention, are the birds-eye view of car body shown in the figure.

(a) represent not left-right rotation bar-handle 11, make front-

wheel

13,14 states towards the craspedodrome direction.

Represent as shown by arrows that (b) (direction of hollow arrow (right) indication is right to the right.) rotate bar-handle 11, make front-

wheel

13,14 right-hand turnings, make the vehicle right-hand turning to state.

That is, if turning clockwise bar-handle 11, then along with the rotation of handlebar axis 55, the 1st connecting rod 61 rotates and swing, and (direction of hollow arrow (left) indication is the left side to the left with the 1st connecting rod 61 bonded assemblys the 2nd connecting rod 63 by ball pivot 62.) move, swing to the left the rear end of upper arm parts 66, at birds-eye view center member 64 right-hand revolutions, thereupon front-

wheel

13,14 right-hand turnings to.

Fig. 7 (a)～(c) is the 2nd fundamental diagram that is used to illustrate the effect of suspension gear of the present invention, the state of tilting of car body during with schematic diagram explanation control wheel steering.(simplified the shape of each member of suspension gear 43 for simplicity.)

(a) being lateral plan with cooresponding swing arm 44 of Fig. 5 and crossbeam 64, in addition, on the right side of this lateral plan, is the lateral plan of swing arm 44 ends.

At first, if the turning clockwise bar-handle, then crossbeam 64 is the center rotation with king pin 73 (being bolt 73) as shown by arrows.

(b) state of expression crossbeam 64 rotations, that is, from the state of (a), the axletree 81 in left side moves to the inboard of paper, and the axletree 82 on right side is to the state of a side shifting at the moment of paper.

Though this state is because king pin 73 turns forward, the state that the axletree 82 on right side is higher than the axletree 81 in left side, promptly, the state that the front-wheel on right side is higher than the front-wheel in left side, but in fact, because left and right sides front-wheel both sides contact with ground simultaneously, so, for this state being adapted to actual state, if ground is 90, then when 90 height to the front end of the axletree 81 in left side are h from ground,, make the front end dropping distance d of the axletree 82 on right side for the height of the front end of the axletree 82 that makes the right side is identical with the height h of axletree 81 front ends in left side.

(c) expression descends the axletree 82 on right side, makes axletree 82 have the state of the height h identical with the axletree 81 in left side.The axletree 82 on right side is descended, and in (b), as shown by arrows, is horizontal shaft 91 rotations that swing arm 44 is extended along the car body fore-and-aft direction relatively.

That is, turn back to (c), swing arm 44 is only anglec of rotation  of center with horizontal shaft 91.

Fig. 8 is the 3rd fundamental diagram that is used to illustrate the effect of suspension gear of the present invention, is the front elevation of car body shown in the figure.

As illustrated with Fig. 7 (c), if swing arm 44 rotations, then in Fig. 8, vehicle frame 41 that is connected with swing arm 44 and the rotation of swing arm 44 one, promptly, the vehicle frame 41 that constitutes front vehicle body 16 rotates relative to aftercarriage 24, and (hollow arrow the figure (right) is represented the car body right side to the car body right side from plumb bob vertical 83.That is, at this be the steering direction of vehicle.) angle of inclination  only.

So, if vehicle frame 41 tilts, the center of gravity 95 of the four-wheeled 10 (with reference to Fig. 1) that comprises seat chaufeur is onboard moved to the right side of car body.

As illustrated with above Fig. 1 and Fig. 5, the present invention is a kind of aftercarriage 24 that can connect front vehicle body 16 freely rotationally and be arranged on its rear, front-wheel 13 is set respectively about

front vehicle body

16,14 four-wheeled 10, it is characterized in that: its structure is: forwards extend swing arm 44 from front vehicle body 16, the bolt 73 as king pin that turns forward is installed in front portion in this swing arm 44, top and bottom are compared, the upper end is positioned at the place ahead, the crossbeam 64 that extends to the left and right is installed on this bolt 73 revolvably, revolvable front-wheel 13 is installed at the two ends of this

crossbeam

64,14, bolt 73 is turned forward.

Because king pin 73 is turned forward, so, when four-wheeled 10 turns to, along with handling handlebar, can make front vehicle body 16 to steering direction, promptly tilt to the side that turns to a side (for example, being the right side of car body in Fig. 8), can make center of gravity 95 that chaufeur sits the four-wheeled 10 under onboard the state to steering direction, promptly (for example to the side that turns to a side, be the right side of car body in Fig. 8) move, can improve turning efficiency.

Therefore, can improve turning velocity, in addition, because the center of gravity 95 of four-wheeled 10 is mobile, the position step-down of center of gravity 95 can reduce the moment that four-wheeled 10 is overturn by the centnifugal force that acts on the center of gravity 95.Consequently, can reduce the wheelspan (interval of left and right wheels) of front-

wheel

13,14 and trailing wheel 21,22 (with reference to Fig. 6 (a)), can reduce overall width, can realize the miniaturization of four-wheeled 10.

And though the present invention is the front vehicle body and the aftercarriage that can connect vehicle rotationally, and to establish front-wheel be 2 to take turns, and trailing wheel is 2 to take turns,, be not limited to this, also can be that can not to connect front vehicle body and aftercarriage and front-wheel rotationally be 2 to take turns, trailing wheel is 1 three-wheel vehicle of taking turns.

The effect of invention

The present invention is following effect owing to said structure has.

Suspension arrangement of the present invention is because from front vehicle body adjutage forwards, in the front portion of this arm The king pin that installation turns forward is compared top and bottom, and the upper end is positioned at the place ahead, turns at this On pin, the revolvable crossbeam that extends to the left and right is installed, is installed and to rotate at the two ends of this crossbeam Front-wheel, so, when Vehicular turn, can make front vehicle body to steering direction along with handling handlebar Tilt, can make center of gravity that the driver sits the vehicle under onboard the state to steering direction, namely to Turn to the side of a side to move, can improve steering behaviour.

Claims

1. suspension gear, can connect front vehicle body freely rotationally and be arranged on the aftercarriage at its rear, about front vehicle body, be provided with respectively in the vehicle of front-wheel, from front vehicle body extension arm forwards, the king pin that turns forward is installed in front portion at this arm, top and bottom are compared, and the upper end is positioned at the place ahead, it is characterized in that: the crossbeam that will extend to the left and right is installed on this king pin revolvably, at the two ends of this crossbeam revolvable described front-wheel is installed, king pin is turned forward; Be provided with the handlebar that is installed in rotation on the front vehicle body, this handlebar links by linking parts and this crossbeam, turns to thereby can handle handlebar.