JPS61255228A - Governor device of vehicle - Google Patents

Abstract

PURPOSE:To simplify structure of a governor, according to the method wherein, in a device which controls the opening of the throttle valve of a carburetter by either throttle controller or mechanism governor, an intermittent device, intermittently interlocking with an interlocking mechanism between a governor and a carburetter, is located to the interlocking mechanism. CONSTITUTION:A single cylinder engine 14 of a vehicle for running on an uneven road surface is formed such that the opening of a throttle valve 94B of a carburetter 94 is regulated by means of a wire through manual control of a throttle lever, not shown, and a rotation speed is controlled through said regulation. With the increase in the rotation speed of the engine 14, a weight 80 of a mechanical governor 72 is swing outward through a centrifugal force, and this presses a fork 84 rightward through a slider 82, and the opening of the throttle valve 94 B is regulated toward the closing side through a lever 90 and a link 104. In which case, an intermittent device 88, brought to a connection state in a PTO mode and brought to a disconnection state in a running mode, is coaxially with a fork shaft 86 to intermittently continue interlocking between the governor 72 and the carburetter 94.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is capable of controlling the throttle valve opening of a carburetor connected to an engine using either a manual or foot-operated throttle operator or a mechanical force controller. t) relates to a governor device applied to a vehicle that can be selectively controlled by

(Background of the Invention) Three- or four-wheeled small vehicles for driving on rough terrain, golf cars, etc. equipped with wide ultra-low pressure tires can be driven by freely changing the vehicle speed by using a manual or foot-operated throttle control. , -r, constant speed 111. There are machines that can run at a constant speed while driving work machines such as lawn mowers and water sprinklers.

When controlling the throttle valve opening of the carburetor using a mechanical governor to keep the engine speed constant, Juto used a mechanical governor to be rotated by the engine via a 1-degree clutch. That is, during normal driving, the dog clutch is turned off to stop the governor, and only when the governor is used, the tog clutch is connected to operate the cover no.

Activate and deactivate the governor using the toggle clutch in this way: 1. In this case, an I/Gkludge and its interrupter (tM) were required, and there were problems such as the Rikichi itself turning into a large QS, and the TFA construction becoming complicated.

(Object of the invention) Has the present invention been made in view of these circumstances? ],
A diagram of the governor and its disconnection mechanism is made into a simplified version for elementary school 11.
In addition, it is suitable for downsizing the J-Clan as a whole.
The company's objective is to provide cabana equipment for i.

((14) of the invention) According to the invention, this purpose is to
Adjust the opening of the throttle valve manually.
In a vehicle that can be selectively controlled by either an operator or a mechanical governor, the governor is controlled by the engine? ) This can be achieved by a vehicle governor device characterized in that the interlocking device 4i/i for the cavernous and carburetor is provided with an interrupter (10) that is constantly rotating and driving the interlocking device 4i/i.

(Embodiment) Fig. 1 is a partially sectional plan view showing the main parts of a vehicle for traveling on rough terrain, which is an embodiment of the present invention, and Fig. 2 is a right side view of the main parts. Figure 3 is a partially cross-sectional side view of vaporized rice;
The figure is a sectional view taken along line IV-■ in Figure 1, and Figure 5 is a cross-sectional view of the line IV-■ in Figure 1.
-V sectional view, Fig. 6 is a Vl - ■ line sectional view, Fig. 7 is a partially sectional exploded view of the J crank, Fig. 8 is a ftljI side view of the car 1iIi cut away at -jY3, FIG. 9 is also a plan view.

In Figures 8 and 9, rF 10 is 1. :, the steering front wheel of the right-hand side I, ] 2 is a pair of left and right rear wheels, and 1/I is an 1-axis TL-cylinder engine mounted in the center of the vehicle body (=1 mounted near 1 overhead). A steering bar bundle 1 is installed above between the front wheels 10.
G is placed, and behind it is a -1,'+ill tank]
S-straddle driving seats 20 are sequentially arranged.

That is, straddle P4': ,,+(: The driver's seat 20 is positioned so as to extend rearward from above the engine 1/1).

Reference numeral 22 denotes a front fender integrally formed on the left and right so as to cover the upper part of both front wheels 10, and 24 denotes a rear fender integrally formed on the left and right so as to cover the upper part of both the rear wheels 12.

The rear part of the straddle seat 20 extends over the back 24. 2G is a pair of left and right star stands, which are located below the engine 14.

The single-cylinder engine 14 has a crank) y--s 2s, a cylinder 30 that moves upwardly and upwardly, and a cylinder head 32 mounted on the upper part of this cylinder 30.
4iii Color. Crank/, ---S 2S has a crankshaft 3.
4 is supported horizontally. The piston 3G is connected to the crankshaft 34 by an Irad 38.
.

/IO is head-1-cam tPdt, and this nonom axis /
The IO is connected to the crankshaft 34 and is driven by the turned timing 42, and the cylinder head F
' Open and close the intake valve and exhaust valve (both not shown), which were set at 32. 44 is a spark plug, and 4G is an exhaust pipe.

48 is a centrifugal clutch mounted on the right end of the crankshaft 34, 50 is a multi-disc clutch, and 52 is a conventional N4 coupling type multi-stage transmission. Reference numeral 54 is a forward/reverse switching device using a 41-car umbrella, in which a slider 50 spline-coupled to the subshaft (output shaft) of a transmission 52 is connected to two umbrellas (car 17) that freely rotate on this shaft. By engaging with one side, the direction of rotation of the drive shaft 58 is changed.The rotation of the drive shaft 5S is transmitted to a final reduction gear (not shown) disposed on the rear wheel axle.

The naori latch 50 is connected to the speed change pedal 60 (9th position) of the transmission 52.
It is temporarily disconnected and normally connected in conjunction with the operation shown in Figure).

In FIG. 7, 62 is PTO (Pa) verT a
ke o f f ) shaft, and is rotatably held, for example, by the hiiragi speed reducer between the left and right rear wheels 12 and 12. This PTO: +・+b ('+ 2, the rotation of the crankshaft 34 is the clutch 50 z large gear 50
a1 idol Yusha 64, Dog Clutch 66, Umbrella YJj
It is transmitted via car 68. That is, dog clutch 6
6, the PTO shaft (52) stops or rotates.

The on/off switching of the dog clutch 6G and the switching of the forward/reverse switching device 54 are performed using a switching lever provided on the right side of the engine], /1. -0 (Figure 8.9). The driving force for work equipment such as a lawn mower and a water sprinkler is taken out from the p'ro shaft 62.

A mechanical governor 72 is provided at one end of the camshaft 40, that is, one end of the sprocket on which the timing chain 42 is unwound. As shown in FIG. 1, this governor 72 includes a cylindrical governor shaft 76 formed integrally with a sprocket 74, and a sprocket 74.
4, three weights 80t"l are held by bins 78 so as to be able to swing freely in the radial direction.
Engagement gear...-no shaft 7c) 1'5-1'J? Equipped with a moving motor 1 Noida 827, the movement of this x writer 82, ＼
The number S4 is fixed to the fork shaft 8G, and is located below the fork shaft 80 so that it can be detected by the fork S4. 1°t (1 prayer continuous machine 1fli
8 The lever 90 is removed via S and the lever 90 is attached to the shaft 86 in the direction in which the lever S/I pushes the slider S2 toward the The rotational return training group is 1. - John Coil spring 92 (2nd.
It was published in 1711 by (see Figure 4).

Therefore, when the rotational speed of the engine 14 is i-7,+1-, the centrifugal force acting on the way l-80 increases, and the slider 8
2, the force pushing the hook 84 increases. This slider S
2 and the force of pushing the fork S4 on the slider 82 are balanced by the force L and the force of the fork S4 pushing the slider 82.

This knot +1! ]-Nshin]4 is above the specified speed I-JJ7
Then, the fork 84 and the fork 00 rotate in the direction of 51 in FIG.

The governor 72 is provided with a stop collar 81 that restricts the rotation of the way l-80 in the direction of the radius lJ.
11+ so as not to apply excessive force to pin 7S.
4 are constructed (Fig. 1).

G] 4 is a known piston type carburetor 94.
A and downstream 1 (butterfly-shaped crest valve installed at 1) 9/1
．． Add B7 to l+ii7 (Figure 1.2.3). The throttle valve 94a of the carburetor 94Δ is connected by a wire 98 to a slot lever 9G (FIGS. 8 and 9) installed in the steering bar bundle 16 and used for manual throttle operation. A lever 102 is fixed to the -÷:l:f of the throttle valve 94B, and this lever 102 is connected to the lever 90 of the governor 72 by a link 104. In addition, the valve Φyama], OOlkoha, 1 - John spring 10
6 (Fig. 1), therefore, a review 11 in the direction of opening the throttle valve 9/lB is attached. In FIG. 9, 108 is an air cleaner.

This conclusion will be described later. When connecting ♀ 7"
Pull the link 10'l in the direction of the arrow in Figure 1.2.3, and rotate the throttle valve 9/l, B in the closing direction.

Next, the cutting UC machine 414S8 will be explained based on FIG. 4.5.6. nf A sleeve hole 110 opened at the lower end is formed in the lower part of the fork shaft S6, and this sleeve hole 11
A cylindrical sleeve 114 fixed to the end of the wire 112 is slidably inserted into the wire 112 . A pin 16 is inserted into this sleeve 14 in the radial direction, and both ends of this pin 11G pass through a long hole 118° 118 formed long in the axial direction in the fork shaft 8G and protrude outside the fork shaft 86. ing. A wire boulder 1.20 is screwed onto the bottom of the fork shaft 86; rh:+, and the wire 112 passes through this wire holder 120 and is connected to the switching lever 70 (FIG. 8.9). A spring 122 is compressed between the sleeve 114 and the wire holder 120, giving the sleeve 11/I a +/-1 returning tendency.

A cylindrical member 124 is rotatably attached to the outer periphery of the fork shaft 3 (3), and the lever 90 is fixed to this cylindrical member 124.As is clear from FIGS. , annular 'tR] 2 ('') and this annular groove 12
The engagement groove 128.128 extends in the longitudinal direction from the second part of G.
are formed, and the pin 116 can be engaged with these engagement grooves 128.

That is, when the above-mentioned switch is made and l\-70 is set to the PT○ mote position, the wire 1]2 becomes slack and the sleeve 1]4 springs 12.
Pushed upward by 2. Therefore, the pin ] 16 is the long hole 1
], located at the upper part of S, the pin] 16 is the cylindrical member 124
engagement groove] 28. Therefore, the fork shaft 86 and the cylindrical member 124 are connected, and they rotate together.

Also, when the switching lever 70 is set to travel mode, the wire 11
2 is pulled to pull the sleeve 114 downward. Therefore, the pin 116 escapes from the engagement tl'' 71.28 and moves into the annular groove 126.The fork shaft 8G and the cylindrical member 124 are then cut off, and rotation transmission between them is no longer performed. In this state, while the engine 4 is running, the sleeve 82 of the force/< 72 is in the position where the throttle valve 94B is fully opened, so the pin 16 and the engagement groove 28 are The mote can be switched easily using the switching lever 70 depending on the position of the motor.

Next, the overall operation of this embodiment will be explained. Switching lever 7
0 is set to the forward or reverse position of the travel motor, the disconnection Q'iC device 4i188 is in the disconnected state, and the governor 7
2 and the carburetor 94 are not interlocked. At this time, the throttle valve 9/l,B of the carburetor 94 is held in the fully open position by the 1.-John spring 106. Also, at this time, the forward/reverse switching device 54 is in the forward or reverse state, and the speed of the engine 14 becomes variable under the control of the throttle valve 9G of the carburetor 94. When the speed exceeds the speed, the centrifugal clutch 48 is engaged, and the rotation of 1/1 of the engine is controlled by the clutch 50 and the transmission 5.
2. It is transmitted to the rear wheels 12 via the forward/reverse switching device 54.

When the switching lever 70 is set to PTO mode, the disconnection mechanism 8
8 is in a connected state, and the throttle valve 9/1. of the carburetor 94 is connected. ,
B is linked to governor 72 - 1j toggle clutch 6
G becomes connected, and the engine 171 rotates at a constant speed. At this time, the X rotor lever 96 is held at a predetermined opening position.

Therefore, the PTO shaft 62 rotates at a constant speed. At this time, if the transmission 52 is shifted to the neutral position, the axle will not run, but if it is shifted to a position other than neutral, the axle will run.

Since the QI device 94 is disposed close to the link head 32, the governor 72 and the QI device 94 are close to each other, and the link 10
4 is short. In addition, in response to switching between the traveling mode I and the PTO mode, the interlocking mechanism 88 for interlocking with the carburetor 9/I seventh covena 72 is provided in the interlocking mechanism for both of them, so that the entire engine 14 Or very compactly”, seven circles.

In this embodiment, the engine 14 is a Schilling-Hella 1'3
Since the cylinder is of a vertical type and is located above the crankcase 28, the crankcase 72 is located at a higher position than the crankcase 28. For this reason, Chikarahana 7
2 and the link 10/l are too high (if mud or water gets on them, malfunction may occur).

Of course, the present invention may also include a J-mu shaft type engine (J-ro engine has two heads - 1-), and in this case, the non-nomu shaft near the carburetor (usually the intake side camshaft)
It is preferable to provide a governor in the fuel tank because the distance between the governor and the vaporizer can be further shortened.

Furthermore, the disconnection mechanism in the present invention is an interlocking fil! of the governor and the carburetor. "Includes everything installed in the via, and if a link is used, an interrupter mechanism may be provided in the middle of this link, or an interrupter 414 may be provided on the carburetor side. Also, the interrupter 1t9 #ilj is the installation position. Of course, various configurations are possible depending on the requirements.

In the embodiment described above, the governor 72 was installed on the head-1-nim shaft 40, but in the present invention, the governor is installed on another shaft, such as the crankshaft r.
- It may be installed on a shaft in the space 2S that constantly rotates together with the crankshaft.

(Effects of the Invention) As described above, the present invention is configured such that the governor is constantly driven by the engine, and the interlocking mechanism between the governor and the carburetor is provided with an interlocking mechanism for interlocking the interlocking of the two. This eliminates the need for an intermittent mechanism, simplifies the structure of the governor, and is suitable for downsizing the governor and even downsizing the engine.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a partially sectional plan view showing the main parts of a rough terrain vehicle according to an embodiment of the present invention, and Fig. 2 is the same (a right side view of the main parts, Figure 3 is a partially sectional side view of the carburetor, Figure 4 is a sectional view taken along the line IV-TV in Figure 1, and Figure 5 is a side view of the carburetor.
-v line sectional view, Figure 6 is a VI -■ line sectional view, Figure 7 is a partially sectional exploded view of the engine, Figure 8 is a side view of the vehicle cut away at -11 [; The figure is also a plan view. DESCRIPTION OF SYMBOLS 14... Engine, 72... Mechanical governor, 88... Intermittent mechanism, 94... Carburetor, 94a, 9413... Throttle valve, 96... Throttle as a thrower 1 to 3 operator lever.

Claims (1)

[Scope of Claims] A vehicle in which the opening degree of a throttle valve of a carburetor connected to an engine can be selectively controlled by either a manual or foot-operated throttle operator or a mechanical governor, comprising: A governor device for a vehicle, wherein the governor and the carburetor are constantly rotated by the engine, and the interlocking mechanism between the governor and the carburetor is provided with an interlocking mechanism for interlocking the interlocking of the two.