KR102251685B1 - A centrifugal clutch apparatus and transmission with the same - Google Patents

Abstract

The present invention relates to a centrifugal clutch capable of precise shift control, and a transmission having the same. The purpose of the present invention is to provide the centrifugal clutch capable of precise shift control, in which a centrifugal rocker unit operated by centrifugal force is composed of a rocker unit operated at a first set rotational force (S1) or higher, and a support rocker unit operated at a second set rotational force (S2) or higher, such that a shift point from a low gear to a high gear and a shift release point from the high gear to the low gear can be controlled, and the transmission having the same. The present invention relates to the centrifugal clutch in which a rotational force of a clutch first rotor connected to an input shaft is transmitted to a clutch second rotor connected to an output shaft by the centrifugal rocker unit so as to perform a speed change. The centrifugal rocker unit includes: the rocker unit installed in a first installation hole of the clutch first rotor and rotated by centrifugal force so that the rocker is coupled to the clutch second rotor when the rotational force of the clutch first rotor is equal to or greater than the first set rotational force (S1); and the support rocker unit installed in a second installation hole formed in communication with the first installation hole of the clutch first rotor and supporting the position of the rocker when the rotational force of the clutch first rotor is equal to or greater than the second set rotational force (S2). The first set rotational force (S1) is set to be greater than the second set rotational force (S2).

Description

Centrifugal clutch apparatus and transmission with the same}

The present invention relates to a centrifugal clutch capable of precise shift control and a transmission device having the same, and the timing of shifting from low to high and the time of shifting from high to low can be made by a link operation of a rocker part and a support rocker part. It relates to a centrifugal clutch capable of precise shift control and a transmission device having the same.

In general, as the structure and operation process of industrial machinery or vehicles becomes more complex and precision is required, the driving force of the power unit must be accurately transmitted and blocked, and sudden braking of the driving force is required, and such driving force is blocked/transmitted. For this purpose, a clutch device is being used.

The clutch device transmits/returns the rotational force of the input shaft to the output shaft, and various clutches such as an electronic clutch, a hydraulic clutch, a fluid clutch, a centrifugal clutch, etc. are used. Is losing.

The centrifugal clutch serves to transmit the rotation of the input shaft to the output shaft when the rotation of the input shaft reaches a constant speed.When the rotation speed of the input shaft is low, the centrifugal force is less than the force of the return spring, so that the torque from the input shaft to the output shaft is reduced. When the rotation speed of the input shaft is not transmitted and the rotation speed of the input shaft increases to some extent, the shoe contacts the body of the clutch by centrifugal force, and torque is transmitted to the output shaft.

However, in the conventional centrifugal clutch, the shoe is operated simply by the centrifugal force, and the torque is transmitted from the input shaft to the output shaft by the frictional force of the shoe. Due to the difference in rotational force between the output shafts in which are maintained, when torque is transmitted from the input shaft to the output shaft, shock and vibration are generated in the rotational direction of the input shaft.

In particular, conventional centrifugal clutches operate by centrifugal force when the input shaft is rotated above the set rotational speed, and the rotational force is transmitted to the output shaft. When this occurs, a phenomenon in which the frictional contact between the shoe and the drum is released occurs, and there is a problem in that power transmission efficiency is deteriorated because power is not transmitted.

In addition, in the conventional centrifugal clutch, when the rotational force decreases below a certain set speed after shifting from low to high at an arbitrary set speed, a sudden shift is made from high to low, resulting in noise and impact. In addition, there are various problems, such as a decrease in power transmission efficiency.

Registered Patent Publication No. 10-0489776 (2005.05.06) Unexamined Patent Publication No. 10-2014-0007668 (2014.01.20) Registered Patent Publication No. 10-1516740 (2015.04.24) Unexamined Patent Publication No. 10-2011-0018805 (2011.02.24)

An object of the present invention is a centrifugal rocker unit operated by a centrifugal force is composed of a rocker unit operated at a first set rotational power (S1) or more, and a support rocker unit operated at a second set rotational power (S2) or more, and shifts from low to high. When this is done, the operating state of the rocker part is kept constant by the support rocker part, preventing sudden shift loosening due to a decrease in centrifugal force, and a centrifugal shift control capable of variously controlling the shift point and the shift release point. It is to provide a clutch and a transmission device having the same.

The present invention relates to a centrifugal clutch in which a rotational force of a clutch first rotor connected to an input shaft is transmitted to a clutch second rotor connected to an output shaft by a centrifugal rocker unit to perform shifting;

The centrifugal rocker unit is installed in the first installation hole of the clutch first rotor, and when the rotational force of the clutch first rotor is greater than or equal to the first set rotational power (S1), the rocker is rotated by centrifugal force so that it is coupled to the clutch second rotor. Rocker part;

A support rocker portion installed in a second installation hole formed in communication with the first installation hole of the clutch first rotor, and in which the support rocker is rotated by centrifugal force when the rotational force of the clutch first rotor is greater than or equal to the second set rotational power S2; Including,

The first set rotation power (S1) is set to be greater than the second set rotation power (S2),

When the rotational force of the clutch first rotor is greater than or equal to the first set rotational power (S1), the rotational force of the first clutcher rotor is transmitted to the second clutch rotor by the rocker unit, thereby shifting from low to high,

When the rotational force of the clutch first rotor is greater than or equal to the second set rotational power (S2) and less than the first set rotational power (S1), the position of the rocker is supported by the support rocker, and the rotational force of the clutch first rotor is transmitted to the second clutch rotor. The upshifting state is maintained,

When the rotational force of the clutch first rotor falls below the second set rotational power (S2), the rocker and the support rocker are inserted into the first and second installation holes of the clutch first rotor, respectively, and the rocker part is separated from the clutch second rotor (separated ), and it is configured to shift from high to low.

In the present invention, the centrifugal rocker unit operated by the centrifugal force is composed of a rocker unit operated at a first set rotational power (S1) or more, and a support rocker unit operated at a second set rotational power (S2) or more, and at the input shaft by the centrifugal rocker unit. When the power is transmitted to the output shaft, even if the rotational speed of the input shaft decreases, the operating state of the rocker part is maintained by the support rocker until the second set rotational power S2 is reached, so the first set rotational power S2 and the second setting By setting the rotational force (S2), there is an effect that precise shift control can be performed at the rotational speed desired by the user.

In addition, since the present invention uses a mechanical centrifugal force in a transmission, there is a significant cost reduction effect. That is, as the torque value of the shaft increases and increases with each step of the shifting device, the power of the devices for shifting must be strong, and the cost is inevitably increased.However, the present invention shifts with a simple mechanical centrifugal force. Even if the value increases, there is an effect that high cost does not occur.

In the present invention, the rotational driving force of the input shaft is automatically transmitted to the output shaft by the centrifugal rocker part, and when power is transmitted from the input shaft to the output shaft, it is transmitted to the output shaft through a power transmission buffer having elastic force or frictional force. Due to the difference in rotational force, shocks and vibrations in the rotational direction are buffered (attenuated), and there are many effects such as improving power transmission and marketability.

1 is an exemplary view showing the configuration of a centrifugal clutch according to the present invention
2 is an exemplary view showing an exploded configuration of a centrifugal clutch having a torsion spring type centrifugal rocker unit according to the present invention
3 is an exemplary view showing the configuration of a torsion spring type centrifugal rocker unit according to the present invention
Figure 4 is an exemplary view showing a non-operating state of the torsion spring type centrifugal rocker unit according to the present invention
Figure 5 is an exemplary view showing the operating state of the torsion spring type centrifugal rocker unit according to the present invention
Figure 6 is another exemplary view showing the operating state of the torsion spring type centrifugal rocker unit according to the present invention
7 is an exemplary view showing an exploded configuration of a centrifugal clutch having a coil spring type centrifugal rocker unit according to the present invention
8 is an exemplary view showing the configuration of a coil spring-type centrifugal rocker unit according to the present invention
9 is an exemplary view showing a non-operating state of the coil spring type centrifugal rocker unit according to the present invention
10 is an exemplary view showing the operating state of the torsion spring type centrifugal rocker unit according to the present invention
11 is an exemplary view showing the configuration of a clutch first rotor according to the present invention
12 is an exemplary view showing the configuration of a second clutch rotor according to the present invention
13 is an exemplary view showing the configuration of a centrifugal rocker unit having a power transmission buffer unit (spring type buffer unit) according to the present invention
14 is an exemplary view showing an operating state by the power transmission buffer unit (spring type buffer unit) of the present invention
15 is another exemplary view showing an operating state by the power transmission buffer unit (spring type buffer unit) of the present invention
16 is an exemplary view showing the configuration of a centrifugal rocker unit having a power transmission buffer unit (friction pad type buffer unit) according to the present invention
17 is another exemplary view showing the configuration of a centrifugal rocker unit having a power transmission buffer unit (friction pad type buffer unit) according to the present invention
18 is an exemplary view showing the configuration of a back plate and a rotating body of a power transmission buffer unit (friction pad type buffer unit) according to the present invention
19 is an exemplary view showing the configuration of the pad portion of the power transmission buffer unit (friction pad type buffer unit) according to the present invention
20 is an exemplary view showing the operation of the pad portion and the pressing member of the power transmission buffer unit (friction pad type buffer unit) according to the present invention
21 is an exemplary view showing the configuration of a pressing member of the power transmission buffer unit (friction pad type buffer unit) according to the present invention
22 is an exemplary view showing the configuration of a transmission according to the present invention
23 is another exemplary view showing the configuration of a transmission according to the present invention

1 is an exemplary view showing the configuration of a centrifugal clutch according to the present invention, FIG. 2 is an exemplary view showing an exploded configuration of a centrifugal clutch having a torsion spring type centrifugal rocker unit according to the present invention, and FIG. An exemplary view showing the configuration of a torsion spring type centrifugal rocker unit, Fig. 4 is an exemplary view showing an inoperative state of a torsion spring type centrifugal rocker unit according to the present invention, and Fig. 5 is an operating state of a torsion spring type centrifugal rocker unit according to the present invention Fig. 6 is another exemplary view showing an operating state of a torsion spring type centrifugal rocker unit according to the present invention, and Fig. 7 is an exploded configuration of a centrifugal clutch having a coil spring type centrifugal rocker unit according to the present invention. Figure 8 is an exemplary view showing the configuration of a coil spring-type centrifugal rocker unit according to the present invention, Figure 9 is an exemplary view showing a non-operational state of the coil spring-type centrifugal rocker unit according to the present invention, Figure 10 An exemplary view showing an operating state of a torsion spring type centrifugal rocker unit according to the present invention, FIG. 11 is an exemplary view showing a configuration of a clutch first rotor according to the present invention, and FIG. 12 is a configuration of a clutch second rotor according to the present invention. Fig. 13 is an exemplary view showing the configuration of a centrifugal rocker unit having a power transmission buffer unit (spring type buffer unit) according to the present invention, Fig. 14 is a power transmission buffer unit (spring type buffer unit) according to the present invention ), FIG. 15 is another exemplary view showing an operating state by the power transmission buffer unit (spring-type buffer unit) according to the present invention, and FIG. 16 is a power transmission buffer unit according to the present invention ( An exemplary view showing the configuration of a centrifugal rocker unit having a friction pad type buffer unit), Fig. 17 is another exemplary view showing the configuration of a centrifugal rocker unit having a power transmission buffer unit (friction pad type buffer unit) according to the present invention. 18 is an exemplary view showing the configuration of a back plate and a rotating body of a power transmission buffer unit (friction pad type buffer unit) according to the present invention, and FIG. 19 is a power transmission buffer unit (friction pad type buffer unit) according to the present invention. Part) is an exemplary view showing the configuration of the pad part, FIG. 20 is a power transmission buffer unit (friction pad) according to the present invention. FIG. 21 is an exemplary view showing the operation of the pad portion and the pressing member of the de-type buffer unit), FIG. 21 is an exemplary view showing the configuration of the pressing member of the power transmission buffer unit (friction pad type buffer unit) according to the present invention, and FIG. An exemplary view showing the configuration of the transmission device according to the present invention, Figure 23 is a diagram showing another exemplary configuration showing the configuration of the transmission device according to the present invention,

The present invention relates to a centrifugal clutch in which a rotational force of a clutch first rotor connected to an input shaft is transmitted to a clutch second rotor connected to an output shaft by a centrifugal rocker unit to perform shifting;

The centrifugal rocker part,

A rocker unit installed in the first installation hole of the clutch first rotor and rotated by centrifugal force so that the rocker is coupled to the clutch second rotor when the rotational force of the clutch first rotor is greater than or equal to the first set rotational power S1;

A support rocker portion installed in a second installation hole formed in communication with the first installation hole of the clutch first rotor, and in which the support rocker is rotated by centrifugal force when the rotational force of the clutch first rotor is greater than or equal to the second set rotational power S2; Including,

The first set rotation power (S1) is set to be greater than the second set rotation power (S2),

When the rotational force of the clutch first rotor is greater than or equal to the first set rotational power (S1), the rotational force of the first clutcher rotor is transmitted to the second clutch rotor by the rocker unit, thereby shifting from low to high,

When the rotational force of the clutch first rotor is greater than or equal to the second set rotational power (S2) and less than the first set rotational power (S1), the position of the rocker is supported by the support rocker, and the rotational force of the clutch first rotor is transmitted to the second clutch rotor. The upshifting state is maintained,

When the rotational force of the clutch first rotor falls below the second set rotational power (S2), the rocker and the support rocker are inserted into the first and second installation holes of the clutch first rotor, respectively, and the rocker part is separated from the clutch second rotor (separated ), and it is configured to shift from high to low.

At this time, the first set rotational power (S1) is an arbitrary rotational force (number of rotations) of the clutch first rotor that is set so that the rocker of the rocker is rotated by centrifugal force, and the second set rotational power (S2) is the support rocker of the support rocker. Denotes an arbitrary rotational force (number of rotations) of the clutch first rotor that is set to rotate in the rocker direction.

That is, in the present invention, the first set rotational power (S1) corresponds to the rotational force of the clutch first rotor for making a shift from a low level to a high level, that is, a shift point for transmitting the rotational force of the input shaft to the output shaft, The second set rotational power S2 may correspond to a rotational force of the clutch first rotor at a time when the shift is released, that is, a shift from high to low.

In addition, the second set rotational power S2 is preferably set to be smaller than the first set rotational power S1 and to have 1/5 or more of the first set rotational power S1.

For example, when the first set rotational power S1 is set to 3,000 rpm, when the rotational force of the clutch first rotor is 3,000 rpm or more, a shift (power transmission) from low to high is performed, and the second When the set rotational power (S2) is set to 1,000 rpm, the high speed shifting state is maintained until the rotational force of the clutch first rotor is 1,000 rpm or more, and when the rotational force of the clutch second rotor decreases to less than 1,000 rpm, The shift from high to low is made.

That is, the centrifugal rocker unit 190 of the present invention includes the rocker units 130 and 170 operated when the rotational force of the clutch first rotor 110 is greater than or equal to the first set rotational power S1, and the clutch first rotor 110 When the rotational force of) is greater than or equal to the second set rotational power (S2), the rotational force of the clutch first rotor is set to the first by including the support rocker parts 140 and 180 that support the rocker parts 130 and 170 to maintain the operating state. If it falls below the rotational force (S1), the shift release (shifting from high to low) is not performed immediately, but the position of the rocker is supported by the support rocker until the second set rotational power (S2) or more, so the high speed shifting state is maintained. When the rotational force of the clutch first rotor falls below the second set rotational power S2, the support of the rocker by the support rocker is released, so that shifting (shifting loosening) from high to low is performed.

As described above, the present invention is configured to perform precise shift control (setting control of the rotation speed required by the user) by the dualized setting of the first and second set rotational powers S1 and S2.

Centrifugal clutch 100 according to the present invention, the centrifugal rocker unit 190 according to the operation method, as shown in Figure 1 (a), torsion operated by the centrifugal force and the elastic force (torsion force) of the torsion spring It may be composed of a spring-type centrifugal rocker part 190a and a coil spring-type centrifugal locker part 190b operated by a centrifugal force and an elastic force (compressive force and tensile force) of the coil spring, as shown in FIG. 1(b). .

The torsion spring type centrifugal rocker part 190a includes a rocker part 170 and a support rocker part 180 as shown in (a) of FIG. 1 and FIGS. 2 to 6,

One side of the rocker unit 170 is pin-coupled into the first installation hole 113 of the clutch first rotor 110 and rotates around the pin 173 by centrifugal force, so that the engaging surface 171a is formed by the clutch. 2 The torsion part so that the rocker 171 contacted and supported by the rotor 120 and the moving end 172a connected to the other side of the rocker 171 and the fixed end 172b connected to the clutch first rotor 110 (172c) includes a torsion spring 172 connected to the pin 173 and supported,

One side of the support rocker unit 180 is coupled to a pin 183 in the second installation hole 114 of the clutch first rotor 110 and rotates around the pin 183 by centrifugal force, so that it is attached to the rocker 171. The support rocker 181 to which the first support 181a is in contact, and the moving end 182a is connected to the second support 181b of the support rocker 181, and the fixed end 182b is connected to the clutch first rotor 110 ) May be configured to include a support torsion spring 182 connected to and supported by the torsion part 182c to the pin 183.

The support rocker 181 is composed of a first support 181a to which the rocker 171 is contacted and supported, and a second support 181b to which the moving end 181a of the support torsion spring 182 is connected and supported, The first support 181a is rotated around the pin 183 by centrifugal force as shown in FIGS. 5 and 6 to be supported in contact with the stopper 114a provided in the second installation hole, and the rocker When 171 is in contact, as shown in FIG. 6, it is formed integrally with the second support 181b so that a force F is generated in the radial direction with respect to the rotation radius R of the first support 181a. Has been.

In addition, the rocker 171 may be formed with a support protrusion 171b to which the first support 181a of the support rocker is contacted, and the support protrusion 171b and the first support 181a are in point contact (point Contact) or is configured to be in surface contact in the tangential direction of the support rocker rotation radius (R), and is preferably configured to be in point contact.

In addition, the elastic force (torsion force) of the torsion spring 172 is set in consideration of the first set rotation force (S1) and the centrifugal force at which the rocker 171 operates, and the elastic force (torsion force) of the supporting torsion spring 182 May be set in consideration of the second set rotational power S2 and the centrifugal force at which the operation of the support rocker 181 is performed. That is, the first and second set rotational powers S1 and S2 may be adjusted by adjusting the elastic force (torsion force) of the torsion spring 172 and the supporting torsion spring 182.

For example, the elastic force (torsion force) of the torsion spring 172 is generated in the rocker 171 when the input shaft 810 and the clutch first rotor 110 are driven to rotate below the first set rotational power S1. When the centrifugal force is set to be smaller than the elastic force (torsion force) of the torsion spring, and the input shaft and the clutch first rotor are driven to rotate more than the first set rotational force S1, the centrifugal force generated in the rocker 171 is the torsion spring ( It may be set to be greater than the elastic force (torsion force) of 172).

When the elastic force (torsion force) of the torsion spring 172 is set in this way, when the centrifugal force generated in the rocker 171 according to the rotation of the clutch first rotor is less than the elastic force (torsion force) of the torsion spring 172, torsion The rocker 171 is located in the first installation hole 113 by the elastic force (torsion force) of the spring, so that the rotational force of the clutch first rotor is not transmitted to the clutch second rotor, and the rocker ( When the centrifugal force generated in 171 is greater than the elastic force (torsion force) of the torsion spring 172, the torsion spring 172 is relaxed and the rocker 171 is rotated and the rocker 171 is caught in the second clutch rotor. Since the contact is made, the rotational force of the clutch first rotor is transmitted to the clutch second rotor.

In addition, the elastic force (torsion force) of the support torsion spring 182 is applied to the support rocker 181 when the input shaft 810 and the clutch first rotor 110 are rotated below the second set rotational force S2. When the generated centrifugal force is set to be smaller than the elastic force (torsion force) of the supporting torsion spring 182, and the input shaft and the clutch first rotor are driven to rotate more than the second set rotational force (S2), it is generated in the support rocker 181 The resulting centrifugal force may be set to be greater than the elastic force (torsion force) of the supporting torsion spring 182.

In this way, when the elastic force (torsion force) of the support torsion spring 182 is set, the centrifugal force generated in the support rocker 181 according to the rotation of the clutch first rotor is greater than the elastic force (torsion force) of the support torsion spring 182. If it is small, the support rocker 181 is located in the second installation hole 114 by the elastic force (torsion force) of the support torsion spring, so that the rocker 171 is not contacted by the support rocker 181, When the centrifugal force generated in the support rocker 181 according to the rotation of the rotor is greater than the elastic force (torsion force) of the support torsion spring 182, the support torsion spring 182 relaxes and the rotation movement of the support rocker 181 Will come true.

In addition, the first and second set rotational power (S1, S2) is the elastic force (torsion force) of the torsion spring 172 and the supporting torsion spring 182, as well as the rotational force of the clutch first rotor, the weight of the rocker and the support rocker. And, in consideration of the rotation radius of the clutch first rotor, the rocker, and the support rocker, the clutch operation time (shift time), etc., it is calculated and set by a known technology as a set value required by the user or the target application. Detailed description is omitted.

The torsion spring type centrifugal rocker unit 190a configured as described above,

When the clutch first rotor 110 is rotationally driven by the input shaft 810 above the first set rotational power (S1), as shown in FIG. 5, due to the centrifugal force according to the rotation of the clutch first rotor 110 The rocker 171 of the rocker unit 170 is rotated around the pin 173 and is in engaging contact with one side of the clutch second rotor 120, so that the rotational force of the clutch first rotor 110 is applied to the clutch second rotor ( 120) (shifting from low to high).

In addition, even if the rotational force of the clutch first rotor 110 decreases to less than the first set rotational power S1 during operation (running) by shifting from low to high, the second set rotational power S2 or more is shown in FIG. 6. As shown, since the rocker part 170 is supported by the support rocker part 180 to maintain the operating state of the rocker part 170, the shifting state (high speed shifting state) is maintained, and the clutch of the first rotor 110 The rotational force is transmitted to the second clutch rotor 120 by the centrifugal rocker unit 190.

That is, the torsion spring type centrifugal rocker part 190a,

When the clutch first rotor 110 is rotated by the input shaft 810 to a predetermined first set rotational power (S1) or more, the rocker 171 of the rocker unit 170 is caused by the centrifugal force of the torsion spring 172. Overcoming the elastic force and rotating around the pin 173, the other side of the rocker is inserted into the locking groove 150 provided in the clutch second rotor 120, the locking surface (171a) of the rocker is the clutch second rotor The contact surface 151 of 120 is contacted (coupled), and the rotational force of the clutch first rotor 110 is transmitted to the clutch second rotor 120 (shifting from low to high).

In addition, since the first set rotational power (S1) is set to be greater than the second set rotational power (S2), the clutch first rotor 110 is rotated by the input shaft 810 by a predetermined first set rotational power (S1) or more. When driven, the support rocker 181 of the support rocker also overcomes the elastic force of the support torsion spring 182 by centrifugal force and rotates around the pin 183 in the rocker 171 direction. At this time, the first support 181a of the support rocker is positioned with a gap G2 spaced apart from the support protrusion 171b of the rocker by a predetermined distance, as shown in FIG. 5.

In addition, after the shift from low to high, when the rotational force of the clutch first rotor is reduced, and is lowered to less than the first set rotational power (S1) and more than the second set rotational power (S2), the rocker of the rocker unit 170 ( 171 is rotated to move into the first installation hole 113 of the clutch first rotor by the elastic force (torsion force) of the torsion spring 172, but the support rocker 181 of the support rocker is operated by centrifugal force. Since is maintained, as shown in FIG. 6, the support protrusion 171b of the rocker is supported in contact with the first support 181a of the support rocker according to the rotational movement of the rocker, so that the rocker 171 is a first installation hole ( 113) is prevented from rotating in the direction, and thus, the operating state of the rocker unit 170 is maintained, so that the rotational force of the clutch first rotor 110 is transferred to the clutch second rotor 120 by the rocker 171. It will continue to be transmitted (shifted). At this time, since the support protrusion 171b of the rocker and the first support 181a of the support rocker are made in the radial direction of the force (F) according to the contact, the rocker 171 is stable by the support rocker 181. Will be supported.

In addition, when the rotational force of the clutch first rotor 110 is reduced to less than the second set rotational power S2, the support rocker 181 is caused by the elastic force (torsion force) of the support torsion spring 182. Since it is rotated to move into the second installation hole 114 and the contact support between the rocker 171 and the support rocker 181 is released, the rocker 171 is also clutched by the tightening force (torsion force) of the torsion spring 172 By rotating and moving into the first installation hole 113 of the first rotor, the engagement of the clutch first rotor 110 and the second clutch rotor 120 is released, and a shift from high to low is performed.

At this time, since the support protrusion 171b of the rocker and the first support 181a of the support rocker are in surface contact in point contact or in a tangential direction of the rotation radius R of the support rocker, the rotational force of the clutch first rotor is second When it falls below the set rotational power (S2), the support rocker 181 is rotated around the pin 183 by the elastic force (torsion force) of the support torsion spring 182, and the second installation hole 114 of the clutch first rotor ) Is easily moved in the direction.

The coil spring type centrifugal clutch 190b includes a rocker part 130 and a support rocker part 140, as shown in FIG. 1(b) and FIGS. 7 to 10,

One side of the rocker part 130 is pin-coupled into the first installation hole 113 of the clutch first rotor 110 and rotates around the pin 133 by centrifugal force, so that the engaging surface 131a is made to the clutch. 2 A rocker 131 contacted and supported by the rotor 120, and a locus spring 132 having one end connected to the other side of the rocker 131 and supported by the other end connected to the clutch first rotor 110, and ,

The support rocker part 140 includes a ball spring 142 inserted and installed into a second installation hole 114 formed to communicate with one side of the first installation hole 113 provided with the pinhole 115, and the ball spring 142 ) May be configured to include a support ball 141 that is elastically supported so that a portion of the first installation hole 113 protrudes into the first installation hole 113 by an elastic force of) and is supported in contact with one side of the rocker 131.

As shown in FIG. 8, the rocker 131 has one side of the pin 133 coupled to the pinhole 115 provided in the first installation hole 113 of the clutch first rotor, and the second clutch rotor 120 ) Is provided on the other side, and the other side on which the locking surface 131a is provided is connected to the locus spring 132 and supported. In addition, the rocker 131 is provided with a support groove 131b into which the support ball 141 of the support rocker part is inserted and supported at one side to be pin-coupled.

As shown in FIGS. 9 and 10, the locus spring 132 is connected to the rocker 131 and the clutch first rotor 110, and the rocker 131 is connected to the first clutch by an elastic force (tensile force). The rocker 131 is elastically supported to be positioned within the first installation hole 113 of the rotor. That is, the locus spring 132 has one end connected to the rocker 131 and the other end of the first mounting hole 113 communicating with the first mounting hole 113 of the clutch first rotor 110. It is installed to be connected to the spring hole 116 formed on the other side, and has a function of pulling the other side of the locker 131 provided with the locking surface 131a in the direction of the spring hole 116.

In addition, the ball spring 142 has a predetermined elastic force (compressive force) so that the support ball 141 is in pressure contact with one side of the rocker 131, and is inserted into the second installation hole 114.

For example, the locus spring 132 may be a tension coil spring, and the ball spring 142 may be a compression coil spring.

The elastic force (tensile force) of the locus spring 132 is set in consideration of the first set rotational force (S1) and the centrifugal force at which the rocker 131 operates, and the elastic force (compression force) of the ball spring 142 is set to a second It may be set in consideration of the frictional support force by the rotational force S2 and the support ball 141. That is, the adjustment of the first and second set rotational powers S1 and S2 may be made by the elastic force adjustment setting of the locus spring 132 and the ball spring 142.

For example, the elastic force (tensile force) of the locus spring 132 is such that when the input shaft and the clutch first rotor are driven to rotate below the first set rotational force S1, the centrifugal force generated in the rocker is less than the tensile force of the locus spring. It is set, and when the input shaft and the clutch first rotor are driven to rotate more than the first set rotational power S1, the centrifugal force generated in the rocker may be set to be greater than the tensile force of the locus spring.

In this way, when the elastic force of the locus spring 132 is set, when the centrifugal force generated in the rocker 131 is less than the tensile force of the locus spring 132, there is no change in the length of the locus spring 132, so the first insertion of the insertion hole Since the rocker 131 is located in the hole 113 ′, the rotational force of the clutch first rotor is not transmitted to the clutch second rotor.

In addition, when the centrifugal force generated in the rocker 131 is greater than the tensile force of the locus spring 132, a tensile load is generated in the locus spring 132 and the length of the locus spring 132 increases, and the rocker 131 rotates. As a result, the rocker is engaged with the clutch second rotor, so that the rotational force of the clutch first rotor is transmitted to the clutch second rotor by the rocker.

In addition, the elastic force of the ball spring 142, when the input shaft 810 and the clutch first rotor 110 is driven to rotate less than the second set rotational power (S2), the rocker 131 by the elastic force of the locus spring 132 ) Is rotated into the first installation hole 113, and the input shaft and the clutch first rotor are driven to rotate more than the second set rotational power (S2), the position of the rocker by the frictional support force by the support ball and the centrifugal force of the rocker. Can be set to be supported.

In addition, the adjustment of the first and second set rotational power (S1, S2) is made by the elastic force adjustment setting of the locus spring 132 and the ball spring 142.

That is, in the coil spring type centrifugal clutch 190b, the first and second set rotational powers (S1, S2) are in addition to the elasticity of the locus spring 132 and the ball spring 142, the rotational force of the clutch first rotor, the rocker and support Considering the weight of the ball, the rotation radius of the clutch first rotor and rocker, the clutch operation time (shift time), etc., it is calculated and set by known technology as the set value required by the user or the target application. Detailed description is omitted.

As described above, the centrifugal rocker part 190 made of the torsion spring type centrifugal rocker part 190a or the coil spring type centrifugal rocker part 190b,

While the clutch first rotor 110 and the clutch second rotor 120 are integrally rotated (shifted) by the centrifugal rocker unit 190, the rotational force of the clutch first rotor 110 is the first set rotational power (S1). ), or a phenomenon in which the rotational force of the clutch second rotor 120 connected to the output shaft 820 is greater than the rotational force of the clutch first rotor 110 connected to the input shaft 810 (driving downhill or generating regenerative braking force, etc.) Even if this occurs, a phenomenon in which the centrifugal rocker unit 190 is separated from the clutch second rotor 120 when the second set rotational power (S2) or more, that is, the sudden change of the clutch first rotor 110 and the clutch second rotor 120 The loosening phenomenon (shift release phenomenon) is prevented.

In addition, the centrifugal rocker unit 190 configured and operated as described above is a forward centrifugal rocker unit 190c that transmits the forward rotational force of the clutch first rotor 110 to the clutch second rotor 120 so that a shift is made. Consists of, or

A forward centrifugal rocker unit 190c that transmits the forward rotational force of the clutch first rotor 110 to the clutch second rotor 120 to perform a shift, and the first clutch rotor 110 and the second clutch rotor 120 It may be made of a reverse centrifugal rocker part 190d that does not cause a change in the relative speed of.

That is, the forward centrifugal rocker unit 190c has a shifting function to integrally rotate the clutch first rotor 110 and the clutch second rotor 120, and the reverse centrifugal rocker unit 190d is provided with a regenerative braking force, etc. Accordingly, when a difference occurs in the rotational speed of the clutch first rotor 110 and the clutch second rotor 120, the rotational force of the clutch second rotor 120 is transmitted through the reverse centrifugal rocker unit 190d. 110) to rotate the clutch first and second rotors 110 and 120 integrally.

At this time, the forward rocker part 190c and the reverse rocker part 190d both have the same configuration and are operated at the same rotational force (rpm), and the clutch first and second rotors 110 and 120 are driven by the forward rocker part 190c. When integrally rotated, as shown in FIGS. 5 and 10, the rocker of the rotationally operated reverse rocker part 190d is spaced a predetermined distance from the clutch second rotor 120 with respect to the rotational direction, thereby forming a gap G1. It is positioned to be provided, or is in engaging contact with the engaging groove provided in the clutch second rotor 120, and is preferably positioned at a predetermined distance apart.

The clutch first rotor 110 is formed in the direction of the shaft hole 111 from the outer peripheral surface 110a and the shaft hole 111 to which the input shaft 810 is connected, as shown in FIGS. 2, 7, and 11. It includes a plurality of installation holes 112 to which the rocker unit 190 is connected and installed.

The shaft hole 111 has a concentric circle with respect to the input shaft 810 and is integrally driven to rotate, that is, the input shaft 810 and the clutch first rotor 110 are spline-coupled or a key It is formed so that the /keyway coupling or uneven coupling is made.

The installation hole 112 is formed in communication with the first installation hole 113 through which the locker portions 130 and 170 are pivotably pin-coupled, and the second installation hole 113 in which the support locker portions 140 and 180 are installed. It includes an installation hole (114).

In addition, the installation hole 112 is formed such that the first installation hole 113 and the second installation hole 114 have one hole, as shown in (a) of FIG. As shown in b), the second installation hole 114 may be formed in communication with one side of the first installation hole 113. (The virtual lines in Fig. 11 are for explaining the first and second installation holes, and are not actually constructed.)

In addition, the clutch first rotor 110, when the centrifugal rocker part 190 is made of a coil spring type centrifugal rocker part 190b, as shown in (b) of FIG. 11, the first installation hole 113 A spring hole 116 in communication with the locus spring is further formed.

In addition, the installation hole 112 provided in the clutch first rotor 110 is a type of the centrifugal rocker unit 190 connected to the clutch first rotor, that is, a torsion spring type centrifugal rocker unit 190a or a coil spring type Depending on the centrifugal rocker portion 190b, there is a difference in the shape of the first and second installation holes 113 and 114, but this difference does not depart from the gist of the present invention, and thus corresponds to various modifications of the present invention.

The second clutch rotor 120 includes a flange 121 having a receiving hole 123 in which the clutch first rotor 110 is accommodated, as shown in FIGS. 2, 7 and 12, and the flange ( It includes a hub 122 formed on one side of 121, connected to the output shaft 820, and formed with a shaft hole 124 through which the input shaft 810 is inserted to support bearings.

In addition, the flange 121 may be provided with a locking groove 150 in which the lockers 131 and 171 of the locker portions 130 and 170 are in engaging contact with the inner surface of the receiving hole 123.

The locking groove 150 is the inner surface 120a of the second clutch rotor so that the lockers 131 and 171 rotated by centrifugal force can be easily inserted, and shock noise due to contact with the clutch second rotor 120 is not generated. ) In the direction of rotation (A, A`) in the direction of rotation (A, A`), and a locking contact surface 151 in which the locking surfaces 131a and 171a of the rocker are in locking contact and supported at the ends of the inclined surface 152 It consists of a tapered shape provided.

At this time, the engaging contact surface 151 is preferably formed to be in surface contact with the locking surfaces 131a and 171a of the locker, and the engaging groove 150 is the inner surface of the second clutch rotor so as to correspond to the rockers 131 and 171 ( At least one is formed in 120a).

In addition, when the centrifugal rocker part 190 has a forward centrifugal locker part 190c and a reverse centrifugal locker part 190d, the installation hole 112 and the locking groove 150 are provided with the forward centrifugal locker part 190a and To match the operation of the reverse centrifugal rocker part 190b, that is, the forward centrifugal rocker part 190a and the reverse centrifugal rocker part 190b are formed so as to be symmetrical to each other in the clutch first rotor, and The two rotors are formed with locking grooves 150 to which the forward centrifugal rocker portion 190c and the reverse centrifugal rocker portion 190d are supported are formed to be symmetrical to each other.

In addition, the present invention is installed between the centrifugal rocker unit 190 and the second clutch rotor 120, as shown in Figs. 13 to 17, acting in the rotational direction by engaging contact with the centrifugal rocker unit 190 It may be configured to further include a power transmission buffer unit 300 for transmitting the rotational force of the clutch first rotor 110 to the clutch second rotor 120 while buffering shock and vibration.

The power transmission buffer unit 300 may include a spring type buffer unit 310 and a friction pad type buffer unit 320.

The spring type buffer unit 310, as shown in Figs. 13 to 15, has a clutch first rotor 110 and a clutch second rotor 120 and a clearance, and the clutch first rotor 110 and the clutch The rotating plate 311 accommodated between the second rotor 120 and the rotating plate 311 and the clutch second rotor 120 are accommodated between the rotating plate 311 and the clutch second rotor 120 at both ends This elastically supported, may be configured to include a buffer spring 312 operated in the circumferential direction.

At this time, the rotation plate 311 is formed with a locking groove 150 in which the centrifugal rocker unit 190 is in engaging contact, and a support protrusion 125 for elastically supporting the buffer spring 312 in the second clutch rotor 120 Is formed.

That is, when the spring-type buffer unit 310 is further installed between the clutch first rotor 110 and the clutch second rotor 120, the engaging groove 150 to which the centrifugal rocker unit 190 is in engaging contact is made of a clutch. 2 It is formed on the rotation plate 311 of the spring-type shock absorber 310 that can be contacted with the rockers 131 and 171, not the rotor 120, and the clutch second rotor 120 controls the rotational force of the clutch first rotor. A support protrusion 125 for supporting the buffering spring 312 to be transmitted is formed.

As shown in FIG. 13, the rotating plate 311 is formed in a ring type, and the clutch first rotor 110 is positioned with a clearance inside, and the clutch second rotor 120 is outside the clearance. And is located, and is installed between the clutch first and second rotors 110 and 120 so as to be operated concentrically with the clutch first and second rotors 110 and 120. That is, the rotation plate 311 has a first clutch rotor 110 and a radial clearance in which the centrifugal rocker unit 190 is installed, and is installed to surround it in a concentric circle shape.

The rotation plate 311 is formed with a locking groove 150 in a predetermined depth by inserting the lockers 131 and 171 of the centrifugal rocker part operated by centrifugal force into the inner surface 311a of the rotation plate to make contact with the rotation plate 311, and a buffer spring ( An outer protrusion 313 to which one side of 312 is supported in contact is formed to protrude from the outer surface 151b.

The locking groove 150 is supported by engaging the inclined surfaces 152 that gradually increase in depth in the rotational direction (A, A`) and locking surfaces 131a and 171a of the rocker at the ends of the inclined surfaces 152. Consisting of a tapered shape provided with the engaging contact surface 151, such a configuration of the engaging groove 150 is described above, a detailed description thereof will be omitted.

The outer protrusion 313 supports the buffer spring 312 accommodated to be operated in the circumferential direction between the rotation plate 311 and the clutch second rotor 120, and the clutch by the elastic force of the buffer spring 312 It is supported in contact with one side of the second rotor and has a function of supporting the position of the rotating plate.

In addition, the outer protrusion 313 has a function of causing the rotation plate 311 to rotate concentrically within the clutch second rotor 120. That is, the outer protrusion 313 has an assembly tolerance with respect to the inner surface 120a of the clutch second rotor and protrudes from the outer surface 311b of the rotating plate so that it can be assembled, the rotating plate 311 and the clutch second rotor It has a function of allowing the 120 to operate concentric circles.

In addition, one or more of the outer protrusions 313 are formed to protrude so as to correspond to the number of installations of the buffer springs 312.

The cushioning spring 312 reduces the vibration and shock generated by a sudden change in rotational force transmitted to the rotational plate 311 by the centrifugal rocker unit 190 while reducing the rotational force of the rotational plate 311 to the clutch second rotor ( 120).

As shown in FIGS. 14 and 15, the buffer spring 312 is supported in contact with the outer protrusion 313 of the rotating plate 311 and the other side is supported by the support protrusion 125 of the second clutch rotor. One or more, preferably two or more, a plurality of buffer springs are installed to be symmetrical to each other so as to be supported in contact.

The spring-type buffer unit 310 configured as described above, as shown in Figs. 14 and 15, the locking groove 150 provided in the rotating plate 311 by rotating the rockers 131 and 171 of the centrifugal rocker unit by centrifugal force. ), when the clutch first rotor 110 and the rotation plate 311 are rotated integrally with the engagement contact surface 151 of the clutch, the rotational force of the rotation plate 311 through the buffer spring 312 is applied to the clutch second rotor ( Since it is transmitted to 120), the rotation of the clutch first and second rotors 110 and 120, that is, shifting (shifting from low to high) is performed while shock and vibration acting in the rotational direction are buffered.

In addition, in the present invention, when the spring-type buffer unit 310 is further installed, as shown in FIG. 13, the clutch second rotor 120, that is, the flange 121, is inserted into the receiving hole 123. A cover 160 is further fixedly installed to prevent separation of the rotor 110 and the buffer spring 322.

The friction pad type buffer unit 320 includes a back plate 321 having a pad pin 325 on one side and an expansion pin 326 on the other side, as shown in FIGS. 15 to 21, It is integrally fixed to the back plate 321 so as to have a clearance between the clutch first rotor 110 and the rotating body 322 to which the lockers 131 and 171 of the centrifugal rocker are in engaging contact, and the pad pin 325 of the back plate. One side is connected and supported, and the other side is connected and supported to the expansion pin 326, and is installed symmetrically on one side (321a) of the back plate to have a clearance with the rotation body 322 to contact the second clutch rotor (120). The pad part 323 is installed to be connected to the expansion pin 326 on the other side surface 321b of the back plate so that the expansion pin 326 is rotated so that the pad part 323 is in close contact with the clutch second rotor 120. It may be configured to include an expansion portion 324 to pressurize.

At this time, the rotation body 322 is formed with a locking groove 150 through which the lockers 131 and 171 of the centrifugal locker unit 190 are in contact with each other.

That is, when the friction pad type buffer unit 320 is further installed between the clutch first rotor 110 and the clutch second rotor 120, the locking grooves in which the rockers 131 and 171 of the centrifugal rocker unit 190 are in contact with each other. 150 is formed on the rotating body 322 of the friction pad type buffer unit 320 through which the rockers 131 and 171 can be contacted, not the clutch second rotor 120.

The rotating body 322, as shown in Fig. 18, the locking groove 150, which is in contact with the lockers 131 and 171 of the centrifugal rocker unit operated by the centrifugal force are inserted and formed to a predetermined depth on the inner surface 322a In addition, the locking groove 150 includes an inclined surface 152 that gradually increases in depth from the inner surface 322a of the rotating body in the rotational direction of the rotating body, and locking surfaces 131a and 171a of the rockers at the ends of the inclined surface 152. ) Is formed in a tapered shape provided with a locking contact surface 151 supported by engaging contact, and the configuration of such a locking groove 150 is described above, and a detailed description thereof will be omitted.

The rotating body 322 configured as described above has a first clutch rotor 110 and a radial clearance in which the centrifugal rocker unit 190 is installed, and is installed to surround it in a concentric circle shape.

The back plate 321, as shown in FIG. 18, is integrally installed with a rotating body 322 in the center of one side surface 321a, and a pad pin 325 and an expansion pin around the rotating body 322 326 are installed so that they are symmetrical to each other.

The pad pin 325 has a circular pin type, that is, a cylinder type so that one side of the pad part 323 is contacted and rotated.

In addition, the pad pin 325 may have a rotation support groove 325a connected to one side of the pad portion 323 to be supported at a predetermined depth so as to prevent smooth contact rotation and separation of the pad portion.

The expansion pin 326 is of a circular pin type, that is, a cylindrical type, in which contact planes 326a on which the other side of the pad portion 323 is contacted and supported are formed on both sides.

In addition, the expansion pin 326 has a pin head to protrude from the contact plane 326a so that smooth contact rotation of the pad portion 323 centered on the pad pin 325 and separation of the pad portion 323 are prevented. 326b) is formed.

The pad portion 323 is preferably installed in a pair so as to be symmetrical to each other around the pad pin 325 and the expansion pin 326.

As shown in FIG. 19, the pad part 323 is provided with a friction pad 323a that is in frictional contact with one side of the clutch second rotor 120 to buffer shock and vibration in the rotational direction according to the shifting, and one end In contact with the outer circumferential surface of the pad pin 325, a semicircular contact groove 323b is provided to enable rotation, and a contact surface 323c that is supported in contact with the contact plane 326a of the expansion pin is provided at the other end.

The expansion part 324 is installed on the other side surface 321b of the back plate on which the rotation body 322 and the pad part 323 are not installed, and the pad part 323, that is, friction, on one side of the second clutch rotor The pad 323a is always in contact with each other, so that the frictional force between the second clutch rotor and the pad portion 323 is kept constant.

The expansion part 324, as shown in FIGS. 18 and 21, is a rotation lever 324a integrally connected with the expansion pin 326, and one side is supported by the back plate 321, and the rotation lever 324a ) Is supported on the other side and includes a pressing member 324b for rotating the rotation lever 324a around the expansion pin 326.

The pressing member 324b is installed so that both ends are supported by a support bracket 321c and a rotation lever 324a provided on the back plate 321, and the rotation lever 324a is elastic with respect to the support bracket 321c. To be operated, that is, the rotation lever 324a is installed with a predetermined elastic force so that it rotates integrally with the expansion pin 326.

In addition, a spring or a hydraulic cylinder having a predetermined elastic pressing force may be applied to the pressing member 324b.

For example, the pressing member 324b is screwed with a coil spring 324c, a first guide pin 324d fitted to one end of the coil spring 324c, and a first guide pin 324d. An elastic adjustment bolt 324f fixed to the support bracket 321c of the back plate by a fixing nut 324e, and a second guide pin fitted to the other end of the coil spring 324c and supported by the rotating lever 324a Is configured to contain (324g),

The position of the first guide pin 324d is adjusted by the adjustment of the elastic adjustment bolt 324c and the nut 324e, and the coil spring 324c is pressurized and compressed by the change in the position of the first guide pin 324d, The rotation lever 324a and the expansion pin 326 may be configured to rotate by the elastic force of the coil spring 324c.

The friction pad-type buffer unit 320 configured as described above, as shown in FIG. 20, rotates the expansion pin 326 by the expansion part 324, and the contact plane ( When 326a presses the contact surface 323c of the pad part, the contact groove 323b of the pad part is rotated in contact along the pad part 323, and the pad part 323 is operated outward with the pad pin 325 as the center ( P), and the friction pad 323a of the pad portion is in close contact with the inner surface 120a of the second clutch rotor by the outward operation (P) of the pad portion 323 as described above. That is, the friction pad type buffer unit 320 is in pressure contact with the second clutch rotor 120 to be connected and installed.

At this time, when the pair of pad parts are operated outward (P), one end of the symmetrically installed pad part is not in contact with each other, and the friction pad of the pad part is always on the inner side of the clutch second rotor by the expansion part. The state of close contact is maintained.

In this way, the friction pad type buffer unit 320 is rotated by the centrifugal force of the rockers 131 and 171 of the centrifugal rocker to engage with the locking groove 150 provided in the rotating body, the rotating body 322 and the pad unit 323 is rotated integrally with the clutch first rotor (110). At this time, since the pad part 323 of the friction pad type buffer part 320 is in close contact with the inner surface 120a of the clutch second rotor by the expansion part 324, the pad part 323 and the clutch second A slip phenomenon (sliding of the pad portion) occurs between the inner surfaces 120a of the rotor, but the second clutch rotor 120 is a friction pad type due to the frictional force between the pad portion 323 and the inner surface 120a of the clutch second rotor. The buffer unit 320 is integrally rotated, that is, a shift is made. At this time, the shock and vibration acting in the rotational direction are buffered by the slip phenomenon and frictional force between the pad portion 323 and the inner surface 120a of the clutch second rotor.

The clutch device 100 using the centrifugal force and the buffering force according to the present invention configured as described above is applied to the transmission 800 in which the input shaft and the output shaft have a double shaft structure, so that the rotational force of the clutch first rotor by the input shaft is first set. When the rotational force S1 or more, the centrifugal rocker unit or the centrifugal rocker unit and the power transmission buffer unit are operated to automatically transmit the rotational force of the clutch first rotor to the clutch second rotor connected to the output shaft.

The transmission 800, as shown in Figures 22 and 23, the power unit 860 is connected to the input shaft 810 provided with the first output gear 811, the input shaft 810 and the double shaft An output shaft 820 connected in a structure and rotationally driven and provided with a second output gear 821, a clutch first rotor 110 connected to the input shaft 810, and a second clutch rotor 120 connected to the output shaft. It may be configured to include a clutch device 100 that is connected and installed.

In addition, the transmission 800 is connected to the power unit 860 and the input shaft 810 provided with the first output gear 811, the input shaft 810 and the dual shaft structure is connected to the rotation drive and the second An output shaft 820 provided with an output gear 821, a clutch device 100 in which a clutch first rotor 110 is connected to the input shaft 810, and a clutch second rotor 120 is connected to the output shaft. , It is configured to include a reduction unit 830 that receives the driving force of the first output gear 811 and the second output gear 821 and transmits it to the drive shaft 840 to which the driving wheel 850 is connected,

When the input shaft rotates at a low speed by the power unit, it is transmitted to the first output gear → reduction unit → drive shaft of the input shaft,

When the input shaft rotates at high speed by the power unit, it is transmitted to the input shaft → the cooler device → the second output gear of the input shaft → the reduction unit → the drive shaft, so that automatic shifting from low to high may be performed. In this case, the reduction unit may be configured to perform one-stage or multi-stage reduction by coupling a plurality of gears.

The present invention is not limited to the specific preferred embodiments described above, and any person having ordinary knowledge in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications. Of course, such changes are intended to be within the scope of the description of the claims.

In addition, the terms described in the present invention are intended to distinguish one component from other components and to aid understanding of the present invention, and thus the components of the present invention are not limited by the terms described.

(100): Centrifugal clutch (110): Clutch first rotor
(110a): outer circumferential surface (111): shaft hole
(112): installation hole (113): first installation hole
(114): second installation hole (115): pinhole
(116): spring hole (120): clutch second rotor
(120a): inner surface (121): flange
(122): hub (123): receiving hole
(124): shaft hole (125): support protrusion
(130): locker portion (131): locker
(131a): locking surface (131b): support groove
(132): Locus spring (133): Pin
(140): support rocker portion (141): support ball
(142): ball spring (150): locking groove
(151): engaging contact surface (152): inclined surface
(160): cover (170): rocker portion
(171): locker (171a): locking surface
(171b): support surface (172): torsion spring
(172a): moving end (172b): fixed end
(172c): torsion part 173: pin
(180): support locker part (181): support locker
(181a): the other end (182): support torsion spring
(182a): moving end (182b): fixed end
(182c): torsion portion 183: pin
(190): Centrifugal rocker part (190a): Torsion spring type
(190b): Coil spring type (190c): Forward coil spring type
(190d): Reverse coil spring type (300): Power transmission shock absorber
(310): spring type buffer part 311: rotating plate
(311a): inner (311b): outer
(312): buffer spring (313): outer protrusion
(320): friction pad type buffer unit 321: back plate
(321a): one side (321b): the other side
(321c): support bracket (322): rotating body
(322a): inner surface 323: pad portion
(323a): Friction pad (323b): Contact groove
(323c): contact surface (324): extension
(324a): rotary lever (324b): pressing member
(324c): coil spring (324d): first guide pin
(324e): Fixing nut (324f): Elastic adjustment bolt
(324g): second guide pin (325): pad pin
(325a): Rotation support groove (326): Expansion pin
(326a): Contact plane (326b): Pin head
(800): transmission (810): input shaft
(811): first output gear (820): output shaft
(821): first output gear (830): rotating shaft
(831): 1st rotation gear (832): 2nd rotation gear
(833): 3rd rotation gear (840): drive shaft
(841): rotating gear (850): driving wheel

Claims (17)

A centrifugal clutch in which a rotational force of a clutch first rotor connected to an input shaft is transmitted to a clutch second rotor connected to an output shaft by a centrifugal rocker portion to perform shifting;
The centrifugal rocker part,
A rocker unit installed in the first installation hole of the clutch first rotor and rotated by centrifugal force so that the rocker is coupled to the clutch second rotor when the rotational force of the clutch first rotor is greater than or equal to the first set rotational power S1;
A support rocker portion installed in a second installation hole formed in communication with the first installation hole of the clutch first rotor, and in which the support rocker is rotated by centrifugal force when the rotational force of the clutch first rotor is greater than or equal to the second set rotational power S2; Including,
The first set rotation power (S1) is set to be greater than the second set rotation power (S2),
When the rotational force of the clutch first rotor is greater than or equal to the first set rotational power (S1), the rotational force of the first clutcher rotor is transmitted to the second clutch rotor by the rocker unit, thereby shifting from low to high,
When the rotational force of the clutch first rotor is greater than or equal to the second set rotational power (S2) and less than the first set rotational power (S1), the position of the rocker is supported by the support rocker, and the rotational force of the clutch first rotor is transmitted to the second clutch rotor. The upshifting state is maintained,
When the rotational force of the clutch first rotor falls below the second set rotational power (S2), the rocker and the support rocker are inserted into the first and second installation holes of the clutch first rotor, respectively, and the rocker part is separated from the clutch second rotor (separated ), and a centrifugal clutch capable of precise shift control, characterized in that it is configured to perform a shift from high to low.
The method according to claim 1;
The centrifugal rocker part 190 is made of a torsion spring type centrifugal rocker part 190a including a rocker part 170 and a support rocker part 180,
One side of the rocker unit 170 is pin-coupled into the first installation hole 113 of the clutch first rotor 110 and rotates around the pin 173 by centrifugal force, so that the engaging surface 171a is formed by the clutch. 2 The torsion part so that the rocker 171 contacted and supported by the rotor 120 and the moving end 172a connected to the other side of the rocker 171 and the fixed end 172b connected to the clutch first rotor 110 (172c) includes a torsion spring 172 connected to the pin 173 and supported,
One side of the support rocker unit 180 is coupled to a pin 183 in the second installation hole 114 of the clutch first rotor 110 and rotates around the pin 183 by centrifugal force, so that it is attached to the rocker 171. The support rocker 181 to which the first support 181a is in contact, and the moving end 182a is connected to the second support 181b of the support rocker 181, and the fixed end 182b is connected to the clutch first rotor 110 A centrifugal clutch capable of precise shift control, characterized in that the torsion part (182c) is configured to include a support torsion spring 182 connected to the pin 183 so that the) is connected and supported.
The method according to claim 2;
The support rocker 181 is composed of a first support 181a to which the rocker 171 is contacted and supported, and a second support 181b to which the moving end 181a of the support torsion spring 182 is connected and supported, The first support 181a is rotated around the pin 183 by centrifugal force and is supported in contact with the stopper 114a provided in the second installation hole, and when the rocker 171 is in contact, the first support Centrifugal clutch capable of precise shift control, characterized in that it is integrally formed with the second support (181b) so that force (F) is generated in the radial direction with respect to the rotation radius (R) of (181a).
The method according to claim 3;
The rocker 171 is further formed with a support protrusion 171b to which the first support 181a of the support rocker is contacted and supported,
The support protrusion 171b and the first support 181a are in point contact (point contact) or in surface contact in a tangential direction of the support rocker rotation radius (R).
The method according to claim 1;
The centrifugal rocker part 190 is made of a coil spring type centrifugal rocker part 190b including a rocker part 130 and a support rocker part 140,
One side of the rocker part 130 is pin-coupled into the first installation hole 113 of the clutch first rotor 110 and rotates around the pin 133 by centrifugal force, so that the engaging surface 131a is made to the clutch. 2 A rocker 131 contacted and supported by the rotor 120, and a locus spring 132 having one end connected to the other side of the rocker 131 and supported by the other end connected to the clutch first rotor 110, and
The support rocker part 140 includes a ball spring 142 inserted and installed into a second installation hole 114 formed to communicate with one side of the first installation hole 113 provided with the pinhole 115, and a ball spring ( Centrifugal centrifuge capable of precise shift control, characterized in that it is configured to include a support ball 141 that is elastically supported so that a part of it protrudes into the first installation hole 113 by the elastic force of 142 and is supported in contact with one side of the rocker 131 clutch.
The method according to claim 5;
A centrifugal clutch capable of precise shift control, characterized in that the rocker 131 is provided with a support groove (131b) in which the support ball 141 of the support rocker part is inserted and supported on one side to be pin-coupled.
The method according to claim 5;
The locus spring 132 is a tension coil spring, and the ball spring 142 is a compression coil spring.
The method according to claim 2 or 5;
The centrifugal rocker part 190 is a precision shift control, characterized in that it is made of a forward centrifugal rocker part 190c that transmits the forward rotational force of the clutch first rotor 110 to the clutch second rotor 120 to perform shifting. Centrifugal clutch.
The method according to claim 2 or 5;
The centrifugal rocker unit 190 includes a forward centrifugal rocker unit 190c that transmits a forward rotational force of the clutch first rotor 110 to the clutch second rotor 120 to perform a shift, and a clutch first rotor 110 And a reverse centrifugal rocker part 190d to prevent a change in the relative speed of the second rotor 120 and the clutch,
When the rotational speed of the clutch first rotor 110 and the clutch second rotor 120 is different in the reverse centrifugal rocker unit 190d, the rotational force of the clutch second rotor 120 is in the reverse direction centrifugal rocker unit 190d. Centrifugal clutch capable of precise shift control, characterized in that it is transmitted to the clutch first rotor 110 through a) and installed so that the clutch first and second rotors 110 and 120 are integrally rotated.
The method according to claim 2 or 5;
The clutch first rotor 110 includes a shaft hole 111 to which the input shaft 810 is connected, and a plurality of installation holes formed from the outer circumferential surface 110a in the direction of the shaft hole 111 to which the centrifugal rocker unit 190 is connected and installed. 112),
The installation hole 112 includes a first installation hole 113 through which a rocker part is rotatably pin-coupled, and a second installation hole 114 formed in communication with the first installation hole 113 to install a support locker part, and ,
The second clutch rotor 120 is formed on a flange 121 having a receiving hole 123 in which the clutch first rotor 110 is accommodated, and is formed on one side of the flange 121 and is connected to the output shaft 820. A centrifugal clutch capable of precise shift control, characterized in that it comprises a hub 122 in which the input shaft 810 is inserted and a shaft hole 124 for bearing support is formed.
The method according to claim 10;
In the flange 121 of the second clutch rotor 120, a locking groove 150 to which the lockers 131 and 171 of the rocker portions 130 and 170 are in engaging contact is formed on the inner surface of the receiving hole 123,
The locking groove 150 includes an inclined surface 152 that gradually increases in depth from the inner surface 120a of the clutch second rotor in the rotational direction (A, A`), and a locking surface of the rocker at the end of the inclined surface 152 Centrifugal clutch capable of precise shift control, characterized in that it has a tapered shape having a locking contact surface 151 supported by engaging contact with (131a, 171a).
The method according to claim 11;
The locking contact surface 151 is a centrifugal clutch capable of precise shift control, characterized in that it is formed to be in surface contact with the locking surfaces 131a and 171a of the rocker.
The method according to claim 1 or 2 or 5;
A power transmission buffer unit 300 between the centrifugal rocker unit 190 and the second clutch rotor 120; is further installed,
The power transmission buffer unit 300 is made of a spring type buffer unit 310,
The spring type shock absorber 310 has a clearance with the clutch first rotor 110 and the clutch second rotor 120 and is accommodated between the clutch first rotor 110 and the clutch second rotor 120. It is accommodated between the plate 311, the rotating plate 311 and the second clutch rotor 120, and both ends are elastically supported by the rotating plate 311 and the second clutch rotor 120, and are operated in the circumferential direction. Including a spring 312,
The rotation plate 311 has a locking groove 150 in which the centrifugal rocker unit 190 is in engaging contact, and a support protrusion 125 for elastically supporting the buffer spring 312 is formed in the second clutch rotor 120. Centrifugal clutch capable of precise shift control, characterized in that.
The method according to claim 1 or 2 or 5;
A power transmission buffer unit 300 between the centrifugal rocker unit 190 and the second clutch rotor 120; is further installed,
The power transmission buffer unit 300 is made of a friction pad type buffer unit 320,
The friction pad type buffer unit 320 includes a back plate 321 provided with a pad pin 325 on one side and an expansion pin 326 on the other side, a clutch first rotor 110 and a play gap. The rotation body 322 is integrally fixed to the back plate 321 and the lockers 131 and 171 of the centrifugal locker are in contact with each other, and one side is connected to the pad pin 325 of the back plate and supported on the expansion pin 326. The other side is supported to be connected and installed symmetrically on one side (321a) of the back plate so as to have a clearance with the rotating body (322), the pad part 323 in contact with the clutch second rotor 120, and the other side of the back plate. It is installed to be connected to the expansion pin 326 on the side 321b and includes an expansion part 324 that rotates the expansion pin 326 to press the pad part 323 to be in close contact with the clutch second rotor 120,
A centrifugal clutch capable of precise shift control, characterized in that the rotation body 322 has a locking groove 150 through which the lockers 131 and 171 of the centrifugal rocker unit 190 are in engaging contact.
The method according to claim 14;
The pad pin 325 is made of a circular pin type so that one side of the pad portion 323 is supported in contact and rotated,
The expansion pin 326 is made of a circular pin type formed on both sides of the contact plane (326a) to which the other side of the pad portion 323 is supported in contact,
The pad part 323 is provided with a friction pad 323a that is in frictional contact with one side of the clutch second rotor 120 to buffer shock and vibration in the rotational direction according to the shifting, and the pad pin 325 at one end A semicircular contact groove (323b) is provided in contact with the outer circumferential surface to enable rotation, and a contact surface (323c) that is supported in contact with the contact plane (326a) of the expansion pin is provided at the other end. Centrifugal clutch.
The method according to claim 14;
The expansion part 324 has a rotation lever 324a integrally connected with the expansion pin 326, and one side is supported by the back plate 321 and the other side is supported by the rotation lever 324a, so that the expansion pin 326 It includes a pressing member (324b) for rotating the rotation lever (324a) around,
The pressing member 324b is screwed with a coil spring 324c, a first guide pin 324d fitted to one end of the coil spring 324c, and a fixing nut ( An elastic adjustment bolt (324f) fixed to the support bracket (321a) of the back plate by 324e), and a second guide pin (324g) that is fitted to the other end of the coil spring (324c) and supported by the rotating lever (324a) It is configured to include,
The position of the first guide pin 324d is adjusted by the adjustment of the elastic adjustment bolt 324c and the nut 324e, and the coil spring 324c is pressurized and compressed by the change in the position of the first guide pin 324d, A centrifugal clutch capable of precise shift control, characterized in that the rotation lever 324a and the expansion pin 326 are configured to rotate by the elastic force of the coil spring 324c.
An input shaft 810 connected to the power unit 860 and provided with a first output gear 811;
An output shaft 820 connected to the input shaft 810 in a dual shaft structure, driven to rotate, and provided with a second output gear 821;
Including; the centrifugal clutch 100 according to any one of claims 1 to 7 in which the clutch first rotor 110 is connected to the input shaft 810 and the clutch second rotor 120 is connected to the output shaft. Transmission device having a centrifugal clutch capable of precise shift control, characterized in that.

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