JPS59120582A - Four wheel drive vehicle - Google Patents

Abstract

PURPOSE:To make it possible to steer a vehicle with less control force even on a bad road, by coupling the front end of each tie rod to a knuckle arm in a position front of a front wheel axle. CONSTITUTION:A steering shaft 23 is inclined rearward while a steering rod 57 which is connected to the lower end of the steering shaft 23 is inclined forward, and a relay arm 58 for coupling between tie rods 60, 61 and the steering rod 57 is positioned in the vicinity of the pivot point of a swing arm 41. Since the base ends of the tie rods 60, 61 which are crossed together, are coupled to the relay arm 58 and the front ends of the tie rods 60, 61 are pivotably attached to the bracket of a knuckle arm 59 which is projected forward of a wheel axle, the length of the relay arm 58 may be, first of all, increased, and therefore, the vehicle may be easily steered with less control force, and the steering angle of front wheels 3, 3 may be aimed at being increased.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention applies to ride-on type four-wheel drive vehicles, in which a passenger rides while riding while riding on a seat.

Driving on sandy or extremely rough roads [7[:
As a one-wheeled vehicle (4, both front and rear wheels are 5-wheel drive with engine)
□, -・1- As a four-wheel drive vehicle with low rotation speed.

Moreover, it is preferable to use a ride-on type.

However, on rough roads such as those mentioned above, the unevenness of the road surface makes it easy for the steering wheel to come loose, so it is necessary to be able to easily steer the wheels with little operating force, and to be able to respond immediately to changes in the road surface. The vehicle must have good steering performance.

The present invention has been made to meet such demands, and is a four-wheel drive vehicle that can be steered with little effort when driving on extremely rough and rough roads. Its purpose is to provide.

In order to achieve the second object, the present invention is to arrange the four wheels of the ride ment type, the left and right ties connected via the driving steering rod and the relay arm, and to intersect each tie rod. Its gist is that the tip of the front wheel is connected to the knuckle art at a position forward of the Φ axis of the entire front wheel.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is an overall perspective view of four wheels and a drive vehicle according to the present invention;
The figure is a perspective view showing the frame structure of the four wheels and drive vehicle.
3. FIG. 1 is a plan view showing the frame structure, FIG. 1 is a side view without showing the frame structure, and FIG. 5 is a sectional view of the engine.

11 UI wheel 1 drive V ↓ 11 is a so-called ride-on type in which the driver or the driver straddles seats 1 and 2 to steer the vehicle. Turn the white J-1 opening so that it is tightened. Then, on both sides of the front of the four-wheel drive vehicle 1, cover the fender 6.
The fenders 7 and γ are provided on both sides of the rear of the body 5, and the fenders 7 and γ cover the rear quadrants 4 and 4. This
In the middle of Shira Tsuender 7.7 +91- is the sea 1.
2, a fuel 79 tank 8 is provided for the front force of the seas 1 and 2, and a bar type handle 9 is provided for the 1) IJ force of the fuel tank 8, and the front force of the handle 9 is A storage part 11 for a headlight 10 is formed in the front body 5 of the vehicle, and a noj/-
Take the Hanover 12 which is supported by the body weight, and in the center of the four-wheel drive vehicle 1, support it by the engine 13 Kefreno and 14. are doing.

Here, each of the wheels 3. -3.4.1 It is a balloon type, and its surface has a pattern formed by a large number of flocks 15. It increases the ground contact area j and also bites into the road surface f, 1 [if 3 soil embankments, sandy areas, swamps, etc. It is suitable for driving on rough roads and is also efficient in running on water.

The distance between the front wheels 3.3, that is, the front wheel tread and the rear wheels 4,4
The distance between the rear wheels (red) is approximately equal, and the center of gravity of the vehicle (Li, Yu (ti'i) is the distance between the green and left q+a-: = η wheel 3, which connects the center of the front wheel 3 and the center of the left rear wheel 4. It is made to be near the intersection of the center of The contact surface LL between the tire and the road surface is equal 9 The driving force is sufficiently transmitted to the road surface, making it difficult to slip. 5 The horizontal state can be maintained on water, etc., making driving stable, especially when starting 1 Operates with less loss of driving force.

Incidentally, the wheels 3, 3, 4, 4 may all be the same, so that the wheels can be used in common.

- force, configuration 1d of frame 14, belly button 11-p 1
A center tube 18 extends continuously from the rear ends of the left and right main duplexes 17 extending rearward from the main tube 6, and a down tube 19 extends obliquely from the front end of the main tube 17 to the lower end of the main tube. Continuing from the lower end of the center tube 19, a down tube 20 is extended to the rear, and the rear end of the down tube 20 is continuous with the lower end of the center tube 18. That is,
Each of the left and right members constituting the frame 14 is formed by bending a single pipe material.

A seat rail 21 extends from the rear of the main tube 17, and a subtube 22 is installed between the intermediate portion of this trail 21 and the intermediate portion of the center tube 18.

Then, on the sheet V-rule 21, the Mt+ mark 2 is [
The fuel tank 8 is also fixed to the left and right main tubes 17. A steering shaft 23 of the handle 9 is attached to the head tube 16.
is rotatably inserted.

-Ma/ko, hmph-)・14 is the left and right main tube 17
．． 17 is narrow, and the left and right down tube lower 20.
The frame 14 has a generally trapezoidal shape when viewed from the front, and the supporting brackets 24 are widely spaced apart from each other.
All 13 sets of engines are powered through... By making the frame 14 into such a shape, when assembling the engine 13, the engine 13 can be lowered from above the frame 14 while leaving the engine 13 completely in place, making assembly easier. improves.

The trachea 25 from the engine 13 passes through the frame 14 and is connected to the muffler 26 disposed below the seat rail 210, and an air cleaner 27 is installed between the front part of the seat rail 21. ing.

On the other hand, the engine 13 is provided with a transmission case 29 behind a crankshaft 28, as shown in the cross-sectional view of FIG.
The crankshaft 30, the shaft 31, and the entire clutch mechanism 32 are connected to each other, and furthermore, this mission! 1lI31 and rear wheel output 133 are connected via the transmission mechanism 34, and this rear wheel output IQl133 and [)1
] The wheel output shaft 35 is connected via a chain 36 and a socket 37.3γ, so that each output shaft 33.35 rotates synchronously.

Therefore, the down tube lower 20. of the V-me 14 has a wider left and right spacing. ．． Bracket 38 on 20
It is attached to an adjustable step 38.38 via a. The position of step 38 (=J position is approximately the middle position of the output shaft 33.35 which is divided into the front and back when viewed from the side. In this way, the slap 38.38' is inside the Th frame 14) By attaching it to the wider part, the steering performance during cornering is improved, and the step holding part needs to be a little stronger, making it perfect! This increases the degree of freedom in designing the frame, brackets, brackets, and step connections. In particular, by locating the step 38 between the front and rear output shafts 33 and 35, the engine 13 is mounted in the center of the vehicle body, and the passenger can step on the left and right steps.
When cornering with the body tilted due to weight shift, the position where the occupant's weight is applied becomes approximately equal to the center of the vehicle (↓1 body), and as a result, the load applied to the front and rear wheels is distributed in a well-balanced manner. Therefore, the operability during 5-point cornering is even more the same.

In addition, support brackets 1-39.39 are protruded forward from the lower portions of the left and right down tubes 19.19 as described in 1jiii, and 11114 is provided between the support brackets 1-39.39.
A swing arm 41 is supported by a swing arm E via a swing arm 40. This swing arm 41 has a bow shape in which the arm portions 42 and 42 are widened toward the front when viewed from above, thereby completely expanding the space on the axle side. Then, the end of the arm part 42.42 is welded to the Eve 44°44 (which rotatably supports the drive shaft 43), and the output is located on the right side when viewed from the plane between the arm parts 42.42. A driving sedge rocket 46 is connected to the shaft 35 through 45 chains, which are stepped by force and force, for example, and a play 47 is disposed on the left side.

On the other hand, the left and right center tubes 18°, 18 (D"F) are provided with support brackets 48.48 protruding toward the rear,
This support bracket 48.48 Swing arm 49
It is supported by a pivot that allows it to swing freely.

This swing arm 49 is the front swing arm 4
Unlike No. 1, the arm portion 50.50 (r is approximately parallel, and the tip of the arm portion 50.50 is welded to a pipe 52 into which the rear wheel No. 1 drive shaft 51 is rotatably inserted. The output shaft 33 is located on the left side when viewed from the outside plane.
1 drive sprocket 5 connected via a chain 53 to
A drum brake 55 is provided on the right side of 4 and 1, respectively.

As mentioned above, the front swing arm 41t
Since the tip of the d-arm part 42.42 is shaped to widen left and right, even if the front wheel 3 is a wide balloon type, it will not interfere with its steering, and it will not interfere with the steering.
) iJ side 1 drive ``rocket 46 and fly 1 = 4
7 and the rear 1 drive sprocket 54 and Boogie 55 are arranged in opposite directions on the left and right, so the driving force and braking force can be dispersed and applied to the small body all year round, reducing the impact on the car body. All impacts can be alleviated.

In addition, in the illustration i+lJ, the front swing arm 41 and f
Although the swing arms 49 on the & side have different shapes, they may have the same shape so that parts can be made common.

Part of the navel 716 is tilted backwards, and the steering wheel [J The upper end of the rad 5 is fully connected. The upper part of the steering wheel slot 57 is inclined forward, and the center part of the steering arm 58 is spline-fitted to the lower part of the steering wheel slot 57. This relay arm 58 is fitted in the vicinity of the pivot of the swing arm 41, and can be moved downward by two degrees within a range that does not cause the skidder to fall. And, in the joint 1) part of relay art 58, left side Ai + ring 3
A tie rod 60 that connects to the knuckle arm 59 of the front wheel on the A] side is pivoted to the left end of the Y-arm 58. The nodes 60 and 61 intersect in front of the first relay arm 58.

In this way, steering shaft 236: tilting backwards, C
The steering arm 58, which connects the tie rod 60, 61 and the steering rod 57 near the pivot of the steering wheel arm 41, is installed near the pivot of the steering wheel arm 58. Therefore, relay art 58ζ is installed in a place where there is little swing on the - side of the swing arm 41, and a reasonable force is applied to the fitting part between the steering wheel slot 57 and the arm 58. At the same time, the tie rod 6 [1, 61] is connected to the end of the tie rod 60.
The tip of 61 ☆〃1: is pivoted to the bracket 62 that protrudes forward from the axle of the knuckle arm 59, so first of all, the length of the relay art 58 can be set large, which makes it easy to operate the handle 9 even with less force. This increases the degree of freedom in design, such as being able to steer the engine 13 and increasing the steering angle of the front wheels 3.Furthermore, in this embodiment, the engine 13 is positioned within the maximum steering angle of the front wheels 3. Now on the list, we aim to improve the airflow performance for engine cooling.

First, a bridge 63 is installed between the right art part 42 and 42 of the front swing arm 41.

TA section 64 of this bridge 63
I set it to the outside of the intersection angle of 60.61. Then, the frame 14's hendobuko, -bu 1
6, the entire upper end of one suspension 65 is pivotally connected to the rear of the suspension 65, and the lower end is pivotally connected to the top part 64.
The whole body is tilted backwards.

- side, left and right arm portions 50 of the rear swing arm 49
．． A bridge 66 was constructed between 50 and 50 years ago.

A cross pipe 67 is completely installed between the center tubes is and is, and a single-piece suspension 68 is pivotally connected to the cross pipe 67, and the bridge 66
Pivotally connect the lower end to the suspension 68? The entire structure is tilted forward.

The front and rear suspensions 65°68 are offset from each other in the width direction when viewed from above.

As mentioned above, the suspension 65 is arranged in the 111j direction relative to the engine 13, and the suspension 65 is tilted backward so that the lower end reaches forward of the pivot point of the swing arm 41. Since it is tilted forward, the range of the cushion stroke of each suspension 3765, 68 can be widened, the degree of freedom in the role of the cushion increases, and the shocks received by the wheels 3 and 4 from the road surface can be mutually absorbed, improving cushioning properties. -Also, since the suspensions 65 and 68 are offset when viewed from the plane, the suspension 17 is improved against vibration in the vehicle width direction.

- Still, Figures 6 and 7 show the suspension 6 on the Ih side.
In this embodiment, the top 64 of the bridge 63 of the swing arm 41 is also located at the pivot point of the swing art 41.
At the same time, the intersection angle of the tie rods 50 and 61 is at [7-1], and the lower end of the suspension 65 is pivotally connected to the top part 64.

In this way, connect the suspension 65 to the tie rod 60°61
The tie rod 60.6 should be placed within the intersecting angle of 60.
The direction -h' is aimed at the sea-out of 1 and .

Figures 8 to 10 show the crab chain drive type of the above-described embodiment, and the shaft drive type. The figure is a plan view, and FIG. 10 is a front view of the engine.

The four-wheel drive vehicle 101 according to this embodiment also has front wheels 103. At the end of the frame 114, which has a trapezoidal shape when viewed from the front, is fixedly attached a rear wheel 104, which is also known as the rear wheel 104. Operation of bar type / steering wheel 109 - Insert the steering wheel 123ffi into the steering wheel 1
Yugo/(-yanoshi/join) 156' at the bottom of 23
The upper end of the steer 1 non-crotch 157 tilted forward is connected via the relay arm 158i* to the lower end of the steer 1 non-crotch 157, and the tie rod 160 is connected to the lower end of the steer 1 non-crotch 157.
/・By operating wheel 109, 41J wheel 10
I'm trying to steer 3.

1g ζ, left and right down tubes 119 of frame 114
The swing farm 141 support with arm parts 142, 142 spread forward in between, this swing'
The ridge 163 and frame 1 provided on the arm 141
14, a rearwardly inclined suspension 165 is entirely interposed. And the Swin Farm 149 is also a pivot support between the left and right center chews 7118 of Freno 114.
In this Swingano, a forward-slanted instep 168 is interposed between 149 and the frame 114.

The seat rail 121 extends rearward from the rear end 1 of the main tube 711γ of the 7L/-mu 114, and the seat rail 121 is connected to the bottom of this 7-trail 121.
A muffler 126 connected to three exhaust pipes 125 is supported.

- On the other hand, as shown in FIG. 10, the engine 113 has a two-part cylinder cylinder block 169, a lower crankcase 128, and a transmission case 129, L:L.

The cylinder lock 169 is tilted to the left (i.e., toward the mission case 1291t411) when viewed from the front.

By doing this, the center of gravity of the engine 113 is forced to move near the center of the engine 113. and the crankshaft 130 ir1 of the engine 113
This crankshaft 130 is arranged in the front and rear direction of the vehicle body.
The two output shafts 133 and 135 connected to the clutch mechanism and the gear train via a transmission mechanism etc. are also arranged parallel to the longitudinal force direction of the vehicle body.

Of these output shafts 133, 135, the output shaft 135 protruding to the IJ force is a drive shaft 17 which is rotated via a bell gear 170 to the drive shaft 143 of the front wheel 103.
The output shaft 133G is also connected to a drive shaft 172 of the rear wheel 104, which causes the drive shaft 151 to rotate fully. The output shafts 133 and 135 and the pivot points of the swing motors 141 and 149 are arranged to be at the same level.

As mentioned above, by arranging the output shafts 133 and 135' in parallel with the longitudinal force direction of the vehicle body, the output of the engine can be directly transmitted to the full drive shut, resulting in less output loss. In addition, responsiveness can be improved.

An air cleaner 12γ is installed in the frame 114 in front of the engine 113, and a starter motor 173 is installed on the crankcase 128 on the right side of the engine 113, and a starter motor 173 is installed between the transmission case 129 and the cylinder block 169. The exhaust pipe 125 is disposed in the space that can be formed, and the exhaust pipe 125 is
The muffler 12 extends throughout the space surrounded by the muffler 14.
Connect to 6.

The aim is to improve the layout of a so-called ride-on type vehicle.

Furthermore, in this embodiment, the steering rod 15
1 and a relay arm 158 that is fully connected to the tie rod 160.
As shown in FIG. 8, a spline is fitted to the lower end of the steering rod 157 to allow vertical movement of the intermediate part. It is covered with cover 175. - In the center of the relay arm 158, there are four parts 176 that are open on one side.

This four part 116 is provided with a (--
141A<
A spring (not shown) is compressed between the upper surface of the part and the upper surface of the part.

By doing this, the intermediate member 174 will often come off from the steering rod 157 (d relay arm 158) due to the swinging of the Spinquiano 141.

In the embodiment shown in FIGS. 8 to 10, the front wheel drive shaft 171'ist is located on the left side of the vehicle center line, and the rear wheel drive shirt (172) is completely disposed on the right side of the vehicle body center line. are arranged in the opposite direction in order to alleviate the driving force and braking force, but they may be arranged either on the right side of the wheel.In short, they may be arranged so as to cross at the front and rear.

As explained above, according to the present invention, it is a ride-on type four-wheel drive vehicle, and the relay art provided on the steering rod that rotates when the steering wheel is rotated.
Since the left and right tie rods are all crossed and connected, the arm length of the relay art can be made longer, and the front wheels can be reliably steered with less steering force. Since it is connected to the Natsukuruano at the front of the bulge of the 11th wheel at the tip, in conjunction with the above configuration, the degree of freedom in design is expanded, such as increasing the cutting angle of the 11th wheel. It has many effects such as being able to drive on uneven and rough roads with complete stability.

[Brief explanation of the drawing]

The drawings show an example of implementation of the present invention. Fig. 1 is an overall perspective view of four wheels and a drive vehicle according to the present invention;
The figure is an overall perspective view showing the frame structure of the four-wheel drive vehicle, and FIG. 3 is a plan view showing the frame structure. 41￥J shows the same frame structure (fill blood diagram, Fig. 5 is a cross-sectional view of the engine, Fig. 6 (d Separate actual A! A perspective view showing one example, Fig. 7 shows another example) Figure 8 is a front view of a four-wheel drive vehicle with a shaft drive type, Figure 9 is a ΔF1m diagram showing the frame structure, Figure 9 is a diagram of the engine. It is a front view. 1.101 is a four-wheeled, drive type, 3.
103 is ni 4 wheels, 4,104 is rear wheel, 9,109 is /
・13.113 is the engine, 14.114 is the engine, 23,123 is the steering shaft, 30
．． 130 is the crankshaft, 33,133+1 is the front output power shaft, 35,135 is the front wheel output i sleeve, 38.138 is the stethoscope, 41,141 is the angle i] sound + + - swing 'riff'
-No,. 43.143 is the front wheel drive shaft, 45.53 &-1-Ten-L
- 49,149 is rear swing arm, 51°15
1 is rear wheel drive @, 57.157 is steering boot,
60, 61, 160 are Thai "-7", 65.68 is suspension, 171.1721d drive shaft. Patent applicant: Honda Motor Co., Ltd. agent, patent attorney: Yo Shimoda, patent attorney: Kuni Ohashi, patent attorney: Mr. Yu Koyama 7th Procedural Amendment (Voluntary) March 8, 1981 Director-General of the Special 1st Production Agency Mr. Wakasugi I1''J Mr.
“1. Indication of the incident Patent application 1986-23286
1-Archive 2, Title of the invention 4-wheel 1-drive vehicle 3, Relationship with the case of the person making the amendment Patent applicant (532) Honda Gibin Kogyo Co., Ltd. 4, Agent 5 Added "] to the amendment order Voluntary = -6 −、−Supplement++1 increase 吾4巳箭明zu) Number −7
6z One aspect of the amendment Specification and drawing J' surface゛゛ (7g Contents of amendment ,,,:,,l7.-"'□Clear [+
491
−

Claims (1)

[Claims] Both the front wheels and the rear wheels are rotated by the driving force of the engine.7 In a four-wheel drive vehicle, the four-wheel drive vehicle is a ride-on type in which a passenger rides astride the vehicle, and the rotation of the steering wheel is almost impossible. Motion 4: Transmit linear motion to the left and right front wheels via the relay art. The tie rods are crossed (2nd 5) Furthermore, the tip of this tie rod is connected to the knuckle arm in front of the front wheel axle. Four-wheel drive vehicles are the hallmark of the entire city.