JP3106661B2 - Governor equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a governor device having a plurality of fly weights and a slider operated by opening and closing movements of the fly weights, and more particularly to a structure of the slider.

[0002]

2. Description of the Related Art A conventional governor device shown in FIG. 7 has a pair of flyweights 102 and 103 having recesses 100 and 101 formed inside, a slider 104 having a flange 104a formed at the base, and flyweights 102 and 10 respectively.
A cover 105 for accommodating the slider 3 and the slider 104, and a shaft 106 supported by a support are provided.

[0005] The cover 105 has a hole 105 a provided at the bottom thereof inserted into a shaft 106. The slider 104 is movably fitted to the upper end of the shaft 106 that has penetrated the hole 105a.

[0004]

The above-mentioned flange 104a
Then, it is impossible to insert the slider 104 between the weights 102 and 103 after the weights 102 and 103 have been assembled to the cover 105 first.

Therefore, conventionally, the fly weight 1
The slider 1 is located between the recesses 100 and 101 of the sliders 02 and 103.
The fly weights 102 and 103 are inserted into the cover 105 with the flange 104a of the 04 positioned. However, such an operation is complicated and time-consuming, and thus impairs the assemblability of the governor device. ing. In addition,
Since the slider 104 is sandwiched between the fly weights 102 and 103 in an unstable state, the slider 104 often falls from between the fly weights 102 and 103 during its movement.

Incidentally, the slider 104 located in the cover 105 is often positioned in an inclined position due to a gap formed between the slider 104 and the fly weights 102 and 103. In this case, the slider 104 The axis does not match the axis of the hole 105a formed in the cover 105.

When the shaft 106 is inserted into the hole 105a of the cover 105 in such a state, the upper end 106a of the shaft 106 and the bottom surface of the slider 104 interfere with each other. Therefore, conventionally, an operation of adjusting the posture of the slider 104 with respect to the shaft 106 is performed, but this operation also causes a deterioration in the assemblability of the governor device.

[0008] An object of the present invention is to provide a governor device capable of improving the assemblability in view of such a situation.

[0009]

According to the present invention, a plurality of fly weights which rotate around an axis and open and close, and a flange provided on a base portion are interposed between the fly weights so as to be attached to the shaft. A slider which is movably fitted, and which is thrust-moved by the opening and closing movement of the fly weight, and in order to prevent the flange from coming out from between the tips of the fly weights, adjust the outer diameter of the flange to In the governor device which is set to be larger than the interval between the front end portions when the fly weight is maximally opened, the flanges are forcibly passed between the front end portions while the front end portions of the fly weights are maximally opened. Are formed at the peripheral edge of each of the flyweights so as to abut against the tip of each of the flyweights and elastically deform.

[0010]

[Function] With each fly weight opened to the maximum,
When the slider is fitted to the shaft, the elastic portion of the flange of the slider comes into contact with the tip of each fly weight and is elastically deformed. Therefore, the flange passes between the front ends of the fly weights, and the slider is positioned between the fly weights.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a governor device 10 according to an embodiment of the present invention includes a shaft 3 supported by a support 20.
0, a cylindrical cover 40 whose base portion 41 is rotatably fitted to the shaft 30, and a pair of flyweights 5 symmetrically arranged in the cover 40 so as to sandwich the shaft 30.
0, 60 and a slider 70 movably fitted to the shaft 30.

Holes 42 and 43 are formed in the bottom of the cover 40 at positions below the fly weights 50 and 60, respectively. And fly weight 5
The intermediate portions 51, 61 of 0, 60 are located in the holes 42, 43, and the cover 4
It is swingably supported at the bottom of the zero.

As shown in FIG. 2, a pair of arms 52, 52 and 62, 62 projecting toward the shaft 30 are formed at the upper ends of the fly weights 50 and 60, respectively. The distal ends of the arms 52, 52 are bent outwardly from each other, and similarly, the distal ends of the arms 62, 62 are also outwardly bent.

The slider 70 is made of a synthetic resin, and has a flange 71 protruding from an outer periphery of a base portion thereof as shown in FIG. This flange 7
Numeral 1 is located in concave portions 53 and 63 provided inside the fly weights 50 and 60, respectively, and a washer 72 is attached to the lower surface thereof.

Since the outer peripheral surface of the flange 71 is formed in a tapered shape, the outer peripheral portion is thinner than the inner peripheral portion. Therefore, the outer peripheral edge portion is elastically deformed when a pressing force is applied to the shaft 30 along the axial direction. Hereinafter, the outer peripheral edge of the thin flange 71 is referred to as an elastic portion 73.

[0016] As shown in FIG.
In the state where 0, 60 is opened to the maximum, the arms 52, 5
2 and the respective ends of the arms 62, 62 are located above the outer peripheral edge of the flange 71. Therefore, even when the fly weights 50 and 60 are opened to the maximum, there is no possibility that the slider 70 comes off the shaft 30.

As described above, the elastic portion 73 is formed on the outer peripheral edge of the flange 71 of the slider 70.
Therefore, according to this embodiment, as shown in FIG.
Cover 40 with fly weights 50 and 60 assembled
Is set on the shaft 30, and then the slider 70 is
Can be implemented.

That is, the fly weights 50, 60
When the slider 70 is fitted to the shaft 30 in a state of being opened to the maximum, the elastic portion 73 of the flange 71 is, as shown in FIG.
2, 52 and 62, 62 are elastically deformed upward by contacting the lower edges of the tips. Therefore, when the slider 70 is further pushed in along the shaft 30, the flange 71 is
2, 52 and 62, 62 and the recesses 53, 6
3 is located. Of course, in this state, the elastic portion 73 of the flange 71 returns to its original shape due to its elasticity.
Since the slider 70 can be pulled out from the shaft 30 in a manner opposite to the above, maintenance is easy.

As described above, according to the above embodiment, the slider 70 can be independently fitted to the shaft 30.
That is, as in the conventional device, the slider 70 is
It is not necessary to fit the shaft 30 in a state where it is located within 0. Therefore, assemblability can be remarkably improved.

The device of the above embodiment is applied, for example, as a governor of a portable generator 90 shown in FIG. In this case, in the governor device 10, the gear 44 formed on the outer peripheral surface of the upper end of the cover 40 meshes with the gear 93 provided on the output shaft 92 of the engine 91 of the generator 90.

The cover 40 is rotated in accordance with the operation of the engine 91, whereby the flyweight 5 is rotated.
0, 60 opens and closes according to the rotation speed. As the flyweights 50, 60 open and close, their base causes the slider 70 to thrust along the axis 30, which swings the lever 94 shown in FIG. The swing of the lever 94 is performed via the shaft 95 through the lever 9 shown in FIG.
6 and further transmitted to a throttle valve of a carburetor (not shown) via a cable 97 connected to the tip of the lever 96.

Therefore, when the rotation speed of the engine 91 increases, the slider 70 moves to the lever 94 side. As a result, the lever 96 shown in FIG. Operated in the closing direction. Conversely, when the engine speed decreases, the throttle valve is operated in the opening direction. Thus, the engine 91
Means that a predetermined rotation is maintained irrespective of a change in load.

In the apparatus of the above embodiment, the elastic portion 73 having a triangular cross section is formed at the edge of the flange 71 of the slider 70. However, if the purpose of providing the edge with elasticity can be achieved, It may have a cross-sectional shape.

[0024]

According to the present invention, since the elastic portion which is elastically deformed is formed on the outer peripheral edge portion of the flange of the slider, the flange can be passed between the distal ends of the fly weight in the maximum open state. Can be. Therefore, it is possible to mount the slider on the shaft after the flyweight is set on the shaft side. As a result, the assemblability of the governor device can be significantly improved. Further, the slider can be easily removed from the shaft, which is advantageous for maintenance of the slider.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a governor device according to the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a longitudinal sectional view showing a manner of assembling the slider.

FIG. 4 is a partial sectional view showing a deformed state of an elastic portion formed on the slider.

FIG. 5 is an external view of the portable generator on which the governor device of the embodiment is mounted, partially cut away.

FIG. 6 is an enlarged cross-sectional view showing a mode of mounting the governor device of the embodiment on a portable generator.

FIG. 7 is a vertical sectional view showing a procedure for assembling a conventional governor device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Governor apparatus 20 ... Support body 30 ... Shaft 40 ... Cover 41 ... Base part 50, 60 ... Flyweight 52, 62 ... Arm part 53, 63 ... Concave part 70 ... Slider 71 ... Flange 73 ... Elastic part 80, 81 ... Pin

Claims (1)

(57) [Claims] A plurality of fly weights which pivot about a shaft and open and close, and a flange provided on a base portion are movably fitted to the shaft so as to be interposed between the fly weights; A slider that is thrust-moved by the opening and closing movement of the fly weight, and in order to prevent the flange from coming off from between the tip portions of the fly weights, adjust the outer diameter of the flange to the tip of the fly weight when the fly weight is fully opened. In the governor device that is set to be larger than the gap between the parts, in order to force the flange to pass between the tip parts in a state where the tip parts of the fly weights are opened to the maximum,
A governor device, wherein an elastic portion that is elastically deformed by being in contact with a tip portion of each of the flyweights is formed on a peripheral portion of the flange.