US20030155205A1 - Centirfugal clutch - Google Patents
Centirfugal clutch Download PDFInfo
- Publication number
- US20030155205A1 US20030155205A1 US10/078,507 US7850702A US2003155205A1 US 20030155205 A1 US20030155205 A1 US 20030155205A1 US 7850702 A US7850702 A US 7850702A US 2003155205 A1 US2003155205 A1 US 2003155205A1
- Authority
- US
- United States
- Prior art keywords
- disc
- transmission disc
- friction
- driving wheel
- follower shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D2043/145—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members the centrifugal masses being pivoting
Definitions
- the present invention relates to a centrifugal clutch allowing smooth, convenient shifting of gear.
- FIG. 5 of the drawings illustrates a conventional centrifugal clutch comprising a driving wheel 1 ′, an operative disc 2 ′, a transmission disc 3 ′, and a follower shaft 4 ′.
- the driving wheel 1 ′ is driven by an engine (not shown) via a belt 11 ′.
- the driving wheel 1 ′ includes a central hole 12 ′ for receiving a bearing 13 ′ through which the follower shaft 4 ′ extends.
- a side of the driving wheel 1 ′ includes an engaging portion 14 ′ to which a nut 15 ′ is threadedly engaged.
- the operative disc 2 ′ includes a central hole 21 ′ through which the follower shaft 4 ′ extends, thereby securely engaging with the driving wheel 1 ′ to move therewith.
- the operative disc 2 ′ further includes plural pivotal blocks 22 ′ on an outer periphery thereof.
- Each pivotal block 22 ′ has an end pivoted to the operative disc 2 ′ and a friction plate 23 ′ on an outer side thereof.
- Each pivotal block 22 ′ is attached to the operative disc 2 ′ by a spring 24 ′. In a normal state, each pivotal block 22 ′ is received in the operative disc 2 ′ under the action of the associated spring 24 ′.
- the transmission disc 3 ′ is mounted to the outer periphery of the operative disc 2 ′ and includes an engaging portion 31 ′ for frictional engagement with the pivotal blocks 22 ′ to move therewith.
- the transmission disc 3 ′ further includes a central hole 32 ′ for engaging with the follower shaft 4 ′ to move therewith.
- the follower shaft 4 ′ extends through the driving wheel 1 ′, the operative disc 2 ′, and the transmission disc 3 ′.
- An end of the follower shaft 4 ′ includes teeth 41 ′ and a threaded portion 42 ′.
- the teeth 41 ′ of the follower shaft 4 ′ mesh with teeth 33 ′ in the central hole 32 ′ of the transmission disc 3 ′, and a nut 43 ′ is engaged with the threaded portion 42 ′ for positioning purpose.
- a coupling device 5 ′ is mounted to the follower shaft 4 ′ and includes a coupling block 51 ′ and a gear 52 ′ that is connected to a gear train (not shown) in a gearbox (not shown) of a vehicle.
- the coupling block 51 ′ includes plural protrusions 511 ′ on a side thereof.
- the gear 52 ′ includes plural recesses 521 ′ for releasable engagement with the protrusions 511 ′, thereby allowing joint movement of the gear 52 ′ and the coupling block 51 ′.
- the engine drives the driving wheel 1 ′ to run at the idling speed, which, in turn, causes rotation of the operative disc 2 ′, but the follower shaft 4 ′ is not turned.
- the engagement between the protrusions 511 ′ of the coupling block 51 ′ and the recesses 521 ′ of the gear 52 ′ would not be smooth when they are not aligned with each other.
- each pivotal block 22 ′ pivots outward as a result of centrifugal force.
- the friction plates 23 ′ engage with the engaging portion 31 ′ of the transmission disc 3 ′ to thereby move jointly.
- the transmission disc 3 ′ turns to drive the follower shaft 4 ′ at a high speed, thereby moving the vehicle.
- gear shifting is proceeded at this high speed, the protrusions 511 ′ of the coupling block 51 ′ would impact the gear 52 ′. Damage is caused accordingly.
- An object of the present invention is to provide a centrifugal clutch allowing smooth, convenient shifting of gear.
- a centrifugal clutch in accordance with the present invention comprises a driving wheel, an operative disc connected to the driving wheel to move therewith, a transmission disc mounted to an outer periphery of the operative disc, a follower shaft, a friction mechanism, and a coupling device for releasable coupling with a gear train of a gearbox.
- the driving wheel includes an engaging portion on a side thereof, the engaging portion including a friction portion.
- the operative disc includes plural pivotal blocks on the outer periphery thereof. Each pivotal block includes an end that is pivoted to the operative disc and has a friction plate on an outer side thereof.
- the transmission disc includes an engaging portion for frictional engagement with the pivotal blocks to move therewith.
- the follower shaft extends through the driving wheel, the operative disc, and the transmission disc. The follower shaft is securely engaged with a central portion of the transmission disc to turn therewith. The operative disc is turned together with the driving wheel. Each pivotal block is moved to a position for frictional engagement with the transmission disc when the operative disc turns at a high speed, thereby driving the transmission disc and the follower shaft to turn.
- the friction mechanism is fixed to the transmission disc and in frictional engagement with the friction portion of the driving wheel.
- the friction portion drives the friction mechanism, the transmission disc, and the follower shaft to turn slowly with a constant torque, thereby allowing easy gear shifting through the coupling device.
- FIG. 1 is an exploded perspective view of a centrifugal clutch in accordance with the present invention.
- FIG. 2 is a sectional view of the centrifugal clutch in accordance with the present invention.
- FIG. 3 is a sectional view similar to FIG. 2, illustrating gear shifting of the centrifugal clutch in accordance with the present invention at an idling speed.
- FIG. 4 is a sectional view similar to FIG. 2, illustrating gear shifting of the centrifugal clutch in accordance with the present invention at a high speed.
- FIG. 5 is a sectional view of a conventional centrifugal clutch.
- FIG. 6 is a sectional view similar to FIG. 5, illustrating gear shifting of the conventional centrifugal clutch at an idling speed.
- FIG. 7 is a sectional view similar to FIG. 5, illustrating gear shifting of the conventional centrifugal clutch at a high speed.
- a centrifugal clutch in accordance with the present invention generally comprises a driving wheel 1 , an operative disc 2 , a transmission disc 3 , a friction mechanism 4 , and a follower shaft 5 .
- the driving wheel 1 is driven by an engine (not shown) via a belt 11 .
- the driving wheel 1 includes a central hole 12 for receiving a bearing 13 through which the follower shaft 5 extends.
- a side of the driving wheel 1 includes an engaging portion 14 to which a nut 15 is threadedly engaged.
- An outer periphery of the nut 15 serves as a friction portion 16 for engagement with the friction mechanism 4 .
- the operative disc 2 includes a central hole 21 through which the follower shaft 5 extends, thereby securely engaging with the driving wheel 1 to move therewith.
- the operative disc 2 further includes plural pivotal blocks 22 on an outer periphery thereof. Each pivotal block 22 has an end pivoted to the operative disc 2 and a friction plate 24 on an outer side thereof. Each pivotal block 22 is attached to the operative disc 2 by a spring 23 .
- the transmission disc 3 is mounted to the outer periphery of the operative disc 2 and includes an engaging portion 31 for frictional engagement with the pivotal blocks 22 to move therewith.
- the transmission disc 3 further includes a central hole 32 for engaging with the follower shaft 5 to move therewith, the central hole 32 having teeth 33 defined in an inner periphery thereof. Further, the transmission disc 3 includes a plurality of through-holes 34 and engaging holes 35 for engaging with the friction mechanism 4 .
- the friction mechanism 4 is a plate having a through-hole 41 through which the follower shaft 5 extends.
- the plate further includes plural pegs 42 each having a hole (not labeled) therein for receiving a spring 44 and a friction block 45 .
- the plate includes plural fixing holes 43 corresponding to the engaging holes 35 of the transmission disc 3 .
- the follower shaft 5 extends through the driving wheel 1 , the operative disc 2 , the transmission disc 3 , and the friction mechanism 4 .
- An end of the follower shaft 5 includes teeth 51 and a threaded portion 52 .
- the teeth 51 of the follower shaft 5 mesh with the teeth 33 of the transmission disc 3 , and a nut 53 is engaged with the threaded portion 52 for positioning purpose.
- a coupling device 6 is mounted to the follower shaft 5 and includes a coupling block 61 and a gear 62 that is connected to a gear train (not shown) in a gearbox (not shown) of a vehicle.
- the coupling block 61 includes plural protrusions 611 on a side thereof.
- the gear 62 includes plural recesses 621 in a side thereof for releasable engagement with the protrusions 611 , thereby allowing joint movement of the gear 62 and the coupling block 61 .
- the friction mechanism 4 is fixed to the transmission disc 3 by means of extending fasteners (not labeled) through the fixing holes 43 of the friction mechanism 4 and the engaging holes 35 of the transmission disc 3 .
- the pegs 42 of the friction mechanism 4 extend through the through-holes 34 of the transmission disc 3 and are thus located in an inner side of the transmission disc 3 .
- the friction blocks 45 are biased by the springs 44 to be in contact with the friction portion 16 of the nut 15 .
- the friction mechanism 4 and the transmission disc 3 are integrally formed.
- the engine drives the driving wheel 1 to run at the idling speed, which, in turn, causes rotation of the operative disc 2 .
- the friction 16 of the nut 15 engage with the frictional blocks 45 of the friction mechanism 4 , thereby turning the transmission disc 3 and the follower shaft 5 at a low speed with a constant torque.
- the coupling block 61 is axially moved relative to the follower shaft 5 until the former is engaged with the gear 62 .
- the engagement between the protrusions 611 of the coupling block 61 and the recesses 621 of the gear 62 proceeds smooth and easily as a result of the slow rotation of the transmission disc 3 and the follower shaft 5 .
- the protrusions 611 of the coupling block 61 and the recesses 621 of the gear 62 are not aligned with each other, the protrusions 611 of the coupling block would slide into and thus engage in the recesses 621 of the gear 62 , as the coupling block 61 turns together with the follower shaft 5 while the coupling block 61 moves axially toward the gear 62 along an axis of the follower shaft 5 .
- each pivotal block 22 pivots outward as a result of centrifugal force.
- the friction plates 24 engage with the engaging portion 31 of the transmission disc 3 to thereby move jointly.
- the transmission disc 3 turns to drive the follower shaft 5 at a high speed, thereby moving the vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
A centrifugal clutch comprises a driving wheel, an operative disc connected to the driving wheel to move therewith, a transmission disc mounted to an outer periphery of the operative disc, a follower shaft, a friction mechanism, and a coupling device for releasable coupling with a gear train of a gearbox. The follower shaft extends through the driving wheel, the operative disc, and the transmission disc. The friction mechanism is fixed to the transmission disc and in frictional engagement with a friction portion of the driving wheel. When the driving wheel turns at an idling speed, the friction portion drives the friction mechanism, the transmission disc, and the follower shaft to turn slowly with a constant torque, thereby allowing easy gear shifting through the coupling device.
Description
- 1. Field of the Invention
- The present invention relates to a centrifugal clutch allowing smooth, convenient shifting of gear.
- 2. Description of the Related Art
- A centrifugal clutch is generally used in a beach car or other vehicles. FIG. 5 of the drawings illustrates a conventional centrifugal clutch comprising a
driving wheel 1′, anoperative disc 2′, atransmission disc 3′, and afollower shaft 4′. Thedriving wheel 1′ is driven by an engine (not shown) via abelt 11′. Thedriving wheel 1′ includes acentral hole 12′ for receiving abearing 13′ through which thefollower shaft 4′ extends. A side of thedriving wheel 1′ includes anengaging portion 14′ to which anut 15′ is threadedly engaged. - The
operative disc 2′ includes acentral hole 21′ through which thefollower shaft 4′ extends, thereby securely engaging with thedriving wheel 1′ to move therewith. Theoperative disc 2′ further includes pluralpivotal blocks 22′ on an outer periphery thereof. Eachpivotal block 22′ has an end pivoted to theoperative disc 2′ and afriction plate 23′ on an outer side thereof. Eachpivotal block 22′ is attached to theoperative disc 2′ by aspring 24′. In a normal state, eachpivotal block 22′ is received in theoperative disc 2′ under the action of the associatedspring 24′. - The
transmission disc 3′ is mounted to the outer periphery of theoperative disc 2′ and includes anengaging portion 31′ for frictional engagement with thepivotal blocks 22′ to move therewith. Thetransmission disc 3′ further includes acentral hole 32′ for engaging with thefollower shaft 4′ to move therewith. - The
follower shaft 4′ extends through thedriving wheel 1′, theoperative disc 2′, and thetransmission disc 3′. An end of thefollower shaft 4′ includesteeth 41′ and a threadedportion 42′. Theteeth 41′ of thefollower shaft 4′ mesh withteeth 33′ in thecentral hole 32′ of thetransmission disc 3′, and anut 43′ is engaged with the threadedportion 42′ for positioning purpose. Acoupling device 5′ is mounted to thefollower shaft 4′ and includes acoupling block 51′ and agear 52′ that is connected to a gear train (not shown) in a gearbox (not shown) of a vehicle. Thecoupling block 51′ includesplural protrusions 511′ on a side thereof. Thegear 52′ includesplural recesses 521′ for releasable engagement with theprotrusions 511′, thereby allowing joint movement of thegear 52′ and thecoupling block 51′. - In an idle state, the engine drives the
driving wheel 1′ to run at the idling speed, which, in turn, causes rotation of theoperative disc 2′, but thefollower shaft 4′ is not turned. When the operator shifts from the idle state to a gear, as illustrated in FIG. 6, the engagement between theprotrusions 511′ of thecoupling block 51′ and therecesses 521′ of thegear 52′ would not be smooth when they are not aligned with each other. - Referring to FIG. 7, when the operator accelerates to turn the
operative disc 2′ at a high speed, eachpivotal block 22′ pivots outward as a result of centrifugal force. Thus, thefriction plates 23′ engage with theengaging portion 31′ of thetransmission disc 3′ to thereby move jointly. Thetransmission disc 3′ turns to drive thefollower shaft 4′ at a high speed, thereby moving the vehicle. When gear shifting is proceeded at this high speed, theprotrusions 511 ′ of thecoupling block 51′ would impact thegear 52′. Damage is caused accordingly. - An object of the present invention is to provide a centrifugal clutch allowing smooth, convenient shifting of gear.
- A centrifugal clutch in accordance with the present invention comprises a driving wheel, an operative disc connected to the driving wheel to move therewith, a transmission disc mounted to an outer periphery of the operative disc, a follower shaft, a friction mechanism, and a coupling device for releasable coupling with a gear train of a gearbox.
- The driving wheel includes an engaging portion on a side thereof, the engaging portion including a friction portion. The operative disc includes plural pivotal blocks on the outer periphery thereof. Each pivotal block includes an end that is pivoted to the operative disc and has a friction plate on an outer side thereof. The transmission disc includes an engaging portion for frictional engagement with the pivotal blocks to move therewith. The follower shaft extends through the driving wheel, the operative disc, and the transmission disc. The follower shaft is securely engaged with a central portion of the transmission disc to turn therewith. The operative disc is turned together with the driving wheel. Each pivotal block is moved to a position for frictional engagement with the transmission disc when the operative disc turns at a high speed, thereby driving the transmission disc and the follower shaft to turn. The friction mechanism is fixed to the transmission disc and in frictional engagement with the friction portion of the driving wheel.
- When the driving wheel turns at an idling speed, the friction portion drives the friction mechanism, the transmission disc, and the follower shaft to turn slowly with a constant torque, thereby allowing easy gear shifting through the coupling device.
- Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
- FIG. 1 is an exploded perspective view of a centrifugal clutch in accordance with the present invention.
- FIG. 2 is a sectional view of the centrifugal clutch in accordance with the present invention.
- FIG. 3 is a sectional view similar to FIG. 2, illustrating gear shifting of the centrifugal clutch in accordance with the present invention at an idling speed.
- FIG. 4 is a sectional view similar to FIG. 2, illustrating gear shifting of the centrifugal clutch in accordance with the present invention at a high speed.
- FIG. 5 is a sectional view of a conventional centrifugal clutch.
- FIG. 6 is a sectional view similar to FIG. 5, illustrating gear shifting of the conventional centrifugal clutch at an idling speed.
- FIG. 7 is a sectional view similar to FIG. 5, illustrating gear shifting of the conventional centrifugal clutch at a high speed.
- Referring to FIGS. 1 and 2, a centrifugal clutch in accordance with the present invention generally comprises a
driving wheel 1, anoperative disc 2, atransmission disc 3, afriction mechanism 4, and afollower shaft 5. Thedriving wheel 1 is driven by an engine (not shown) via abelt 11. Thedriving wheel 1 includes acentral hole 12 for receiving abearing 13 through which thefollower shaft 5 extends. A side of thedriving wheel 1 includes anengaging portion 14 to which anut 15 is threadedly engaged. An outer periphery of thenut 15 serves as afriction portion 16 for engagement with thefriction mechanism 4. - The
operative disc 2 includes acentral hole 21 through which thefollower shaft 5 extends, thereby securely engaging with thedriving wheel 1 to move therewith. Theoperative disc 2 further includes pluralpivotal blocks 22 on an outer periphery thereof. Eachpivotal block 22 has an end pivoted to theoperative disc 2 and afriction plate 24 on an outer side thereof. Eachpivotal block 22 is attached to theoperative disc 2 by aspring 23. - The
transmission disc 3 is mounted to the outer periphery of theoperative disc 2 and includes anengaging portion 31 for frictional engagement with thepivotal blocks 22 to move therewith. Thetransmission disc 3 further includes acentral hole 32 for engaging with thefollower shaft 5 to move therewith, thecentral hole 32 havingteeth 33 defined in an inner periphery thereof. Further, thetransmission disc 3 includes a plurality of through-holes 34 and engagingholes 35 for engaging with thefriction mechanism 4. - The
friction mechanism 4 is a plate having a through-hole 41 through which thefollower shaft 5 extends. The plate further includesplural pegs 42 each having a hole (not labeled) therein for receiving aspring 44 and afriction block 45. Further, the plate includes plural fixing holes 43 corresponding to the engagingholes 35 of thetransmission disc 3. - The
follower shaft 5 extends through thedriving wheel 1, theoperative disc 2, thetransmission disc 3, and thefriction mechanism 4. An end of thefollower shaft 5 includesteeth 51 and a threadedportion 52. Theteeth 51 of thefollower shaft 5 mesh with theteeth 33 of thetransmission disc 3, and anut 53 is engaged with the threadedportion 52 for positioning purpose. Acoupling device 6 is mounted to thefollower shaft 5 and includes acoupling block 61 and agear 62 that is connected to a gear train (not shown) in a gearbox (not shown) of a vehicle. Thecoupling block 61 includesplural protrusions 611 on a side thereof. Thegear 62 includesplural recesses 621 in a side thereof for releasable engagement with theprotrusions 611, thereby allowing joint movement of thegear 62 and thecoupling block 61. - In assembly, the
friction mechanism 4 is fixed to thetransmission disc 3 by means of extending fasteners (not labeled) through the fixing holes 43 of thefriction mechanism 4 and the engagingholes 35 of thetransmission disc 3. Thepegs 42 of thefriction mechanism 4 extend through the through-holes 34 of thetransmission disc 3 and are thus located in an inner side of thetransmission disc 3. The friction blocks 45 are biased by thesprings 44 to be in contact with thefriction portion 16 of thenut 15. In an alternative embodiment, thefriction mechanism 4 and thetransmission disc 3 are integrally formed. - When in an idle state, the engine drives the
driving wheel 1 to run at the idling speed, which, in turn, causes rotation of theoperative disc 2. In addition, thefriction 16 of thenut 15 engage with thefrictional blocks 45 of thefriction mechanism 4, thereby turning thetransmission disc 3 and thefollower shaft 5 at a low speed with a constant torque. When shifting from the idle state to a gear, as illustrated in FIG. 3, thecoupling block 61 is axially moved relative to thefollower shaft 5 until the former is engaged with thegear 62. The engagement between theprotrusions 611 of thecoupling block 61 and therecesses 621 of thegear 62 proceeds smooth and easily as a result of the slow rotation of thetransmission disc 3 and thefollower shaft 5. Namely, even if theprotrusions 611 of thecoupling block 61 and therecesses 621 of thegear 62 are not aligned with each other, theprotrusions 611 of the coupling block would slide into and thus engage in therecesses 621 of thegear 62, as thecoupling block 61 turns together with thefollower shaft 5 while thecoupling block 61 moves axially toward thegear 62 along an axis of thefollower shaft 5. - Referring to FIG. 4, when the operator accelerates to turn the
driving wheel 1 and theoperative disc 2 at a high speed, eachpivotal block 22 pivots outward as a result of centrifugal force. Thus, thefriction plates 24 engage with the engagingportion 31 of thetransmission disc 3 to thereby move jointly. Thetransmission disc 3 turns to drive thefollower shaft 5 at a high speed, thereby moving the vehicle. - According to the above description, it is appreciated that the gear shifting at the idling speed is accomplished easily and smoothly by means of providing the centrifugal clutch in accordance with the present invention.
- Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the invention as hereinafter claimed.
Claims (4)
1. A centrifugal clutch comprising:
a driving wheel including an engaging portion on a side thereof, the engaging portion including a friction portion;
an operative disc connected to the driving wheel to move therewith, the operative disc including plural pivotal blocks on an outer periphery thereof, each said pivotal block including an end that is pivoted to the operative disc and that has a friction plate on an outer side thereof;
a transmission disc mounted to the outer periphery of the operative disc, the transmission disc including an engaging portion for frictional engagement with the pivotal blocks to move therewith, the transmission disc including a central portion;
a follower shaft extending through the driving wheel, the operative disc, and the transmission disc, the follower shaft being securely engaged with the central portion of the transmission disc to turn therewith, the operative disc being turned together with the driving wheel, each said pivotal block being moved to a position for frictional engagement with the transmission disc when the operative disc turns at a high speed, thereby driving the transmission disc and the follower shaft to turn;
a friction mechanism fixed to the transmission disc and in frictional engagement with the friction portion of the driving wheel; and
a coupling device for releasable coupling with a gear train of a gearbox;
wherein when the driving wheel turns at an idling speed, the friction portion drives the friction mechanism, the transmission disc, and the follower shaft to turn slowly with a constant torque, thereby allowing easy gear shifting through the coupling device.
2. The centrifugal clutch as claimed in claim 1 , wherein the engaging portion of the driving wheel includes a nut mounted thereon, the nut including an outer periphery acting as the friction portion, the transmission disc including a plurality of through-holes and engaging holes for engaging with the friction mechanism, the friction mechanism being a plate and including a through-hole through which the follower shaft extends, the mechanism further including a plurality of fixing holes corresponding to the engaging holes of the transmission disc, the friction mechanism further including a plurality of pegs extending through the through-holes of the transmission disc, each said peg including a hole for receiving a spring and a friction block;
the coupling device including a coupling block mounted on the follower shaft and a gear mounted on the follower shaft, the gear being connected to the gear train of the gearbox, the coupling block including a plurality of protrusions on a side thereof, the gear including a plurality of recesses in a side thereof for releasable engagement with the protrusions of the coupling block;
each said friction block being biased by an associated one of said springs to be in frictional engagement with the friction portion of the nut.
3. The centrifugal clutch as claimed in claim 1 , wherein the friction mechanism and the transmission disc are integrally formed.
4. The centrifugal clutch as claimed in claim 2 , wherein the friction mechanism and the transmission disc are integrally formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/078,507 US6609600B1 (en) | 2002-02-21 | 2002-02-21 | Centrifugal clutch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/078,507 US6609600B1 (en) | 2002-02-21 | 2002-02-21 | Centrifugal clutch |
Publications (2)
Publication Number | Publication Date |
---|---|
US20030155205A1 true US20030155205A1 (en) | 2003-08-21 |
US6609600B1 US6609600B1 (en) | 2003-08-26 |
Family
ID=27732839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/078,507 Expired - Fee Related US6609600B1 (en) | 2002-02-21 | 2002-02-21 | Centrifugal clutch |
Country Status (1)
Country | Link |
---|---|
US (1) | US6609600B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080236162A1 (en) * | 2007-03-28 | 2008-10-02 | Billy Machner | Supercharger control system |
US20090173593A1 (en) * | 2008-01-04 | 2009-07-09 | I Lin | Clutch Housing |
CN105757140A (en) * | 2016-04-14 | 2016-07-13 | 广州市瑞翔机电有限公司 | Retarding device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7235035B2 (en) * | 2003-04-28 | 2007-06-26 | Brp-Rotax Gmbh & Co. Kg | Release clutch for a vehicle |
US20060089218A1 (en) * | 2004-10-27 | 2006-04-27 | Aeon Motor Co., Ltd. | Large torque diverting device for an engine transmission system |
US8460140B2 (en) * | 2005-11-22 | 2013-06-11 | Dayco Ip Holdings, Llc | Belt tensioner utilizing asymmetric motion control |
US20080060903A1 (en) * | 2006-09-12 | 2008-03-13 | Chun Yi Wu | Automatically and continuously adjustable centrifugal clutch |
US8186493B2 (en) * | 2010-03-12 | 2012-05-29 | Cheng Ming Chien | Clutch for motor vehicle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2038450A (en) * | 1933-08-11 | 1936-04-21 | Clement Talbot Ltd | Power-transmission mechanism |
US2663396A (en) * | 1948-05-28 | 1953-12-22 | Easy Power Inc | Centrifugally engaged clutch |
US2709372A (en) * | 1949-07-15 | 1955-05-31 | Angelo F Melone | Clutch for v-belt sheave sections |
US4106605A (en) * | 1976-12-13 | 1978-08-15 | General Motors Corporation | Centrifugal and one way clutches in series with friction clutch |
US4294342A (en) * | 1978-07-28 | 1981-10-13 | Dyneer Corporation | Centrifugal clutch construction |
US5597060A (en) * | 1994-10-14 | 1997-01-28 | Hoffco, Inc. | Centrifugal actuator for centrifugal clutch |
US6165096A (en) * | 1999-03-12 | 2000-12-26 | Ingersoll-Rand Company | Self-shifting transmission apparatus |
-
2002
- 2002-02-21 US US10/078,507 patent/US6609600B1/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080236162A1 (en) * | 2007-03-28 | 2008-10-02 | Billy Machner | Supercharger control system |
US7591254B2 (en) * | 2007-03-28 | 2009-09-22 | Billy Machner | Supercharger control system |
US20090173593A1 (en) * | 2008-01-04 | 2009-07-09 | I Lin | Clutch Housing |
CN105757140A (en) * | 2016-04-14 | 2016-07-13 | 广州市瑞翔机电有限公司 | Retarding device |
Also Published As
Publication number | Publication date |
---|---|
US6609600B1 (en) | 2003-08-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1865237B1 (en) | Park-position mechanism | |
US8820188B2 (en) | Park-position mechanism for engine | |
JP5931751B2 (en) | Belt wheel with asymmetric torque-sensitive clutch action | |
JP2017510769A (en) | Pulley assembly with radial orientation decoupling mechanism | |
KR930016267A (en) | Automotive Multifunction Energy Saving System | |
US6609600B1 (en) | Centrifugal clutch | |
JP2003207033A (en) | Over-running clutch pulley with reduced axial length | |
JP2003207034A (en) | Over-running clutch pulley with composite seal member | |
JP2004514092A (en) | Method for manufacturing overrunning clutch pulley with holding member | |
US20090111623A1 (en) | Pulley assembly with an improved clutch for a continuously variable transmission | |
JPH08240250A (en) | Belt type automatic transmission | |
EP1672250A1 (en) | Power transmission device | |
CA1144094A (en) | Clutch for belt drive | |
JP2001050294A (en) | Friction clutch | |
US6024197A (en) | Support structure for clutch hub | |
US5123630A (en) | Portable winch | |
US20020050430A1 (en) | Clutch device | |
US6997833B2 (en) | Double-sided sliding button for use in a continuously variable transmission | |
US20180195562A1 (en) | Centrifugal clutch assembly | |
US4328877A (en) | Automatic two-speed drive system | |
US6394254B1 (en) | Clutch with high lever ratio | |
US20050268745A1 (en) | Gearbox in all terrain vehicle power unit | |
US4907685A (en) | Clutch for automotive vehicles | |
EP1205682A2 (en) | Speed controlled freewheel clutch device | |
US5641046A (en) | Bi-directional clutch |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20110826 |