CA1256390A - Irreversible free wheeling clutch - Google Patents
Irreversible free wheeling clutchInfo
- Publication number
- CA1256390A CA1256390A CA000496273A CA496273A CA1256390A CA 1256390 A CA1256390 A CA 1256390A CA 000496273 A CA000496273 A CA 000496273A CA 496273 A CA496273 A CA 496273A CA 1256390 A CA1256390 A CA 1256390A
- Authority
- CA
- Canada
- Prior art keywords
- input shaft
- output shaft
- ball bearing
- shaft
- axial bore
- 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.)
- Expired
Links
Abstract
ABSTRACT OF THE DISCLOSURE
An irreversible free wheeling clutch arrangement having a hollow housing member for rotatably supporting an input driveshaft and an output driven shaft. A one-way transmission mechanism including a plurality of roller bearings caged between a plurality of arcuate segments formed on the input shaft and cooperatively associated with a multi-faced contact member carried by the output shaft so that rotary movement of the input shaft is transferred to the output shaft but attempted rotary movement of the output shaft is not trans-ferred to the input shaft.
An irreversible free wheeling clutch arrangement having a hollow housing member for rotatably supporting an input driveshaft and an output driven shaft. A one-way transmission mechanism including a plurality of roller bearings caged between a plurality of arcuate segments formed on the input shaft and cooperatively associated with a multi-faced contact member carried by the output shaft so that rotary movement of the input shaft is transferred to the output shaft but attempted rotary movement of the output shaft is not trans-ferred to the input shaft.
Description
3~
IRREV
FIELD OF T~E I~VE~TION
This invention relates to an irreversible free wheeliny coupling mechanism and, more particularly, to a nonreversible clutch having a hollow cylindrical housing member for rotat-ably supporting an input and an output shaEt which ara interconnected by a plurality of roller bearings caged between axially extending ouker arcua-te portions carried by the input shaft and an inner block member carried by the output shaft to permit rotational movement to be transmi-tted from the input shaft to the output shaft and to prevent rota-tional movement to be transmi~.ted from the output shaft to ~he input shaft.
BACKGROUND O:F THE I~VENTIO~I
It is well known that free wheeling clutches are utilized in many industrial applications in which it is necessary to preclude reverse motion from the output to the input. For example, in electromechanical switch machines in railroad interlocking, it is essential to maintain the switch points in the position to which they have been moved and to prevent vibrations from inadvertently opening the switch points.
Thus, it is advantageous to couple the electric motor of the switch machine to the switch points throuyh a unidirec-tional clutch which permits the switch points to be dri~en between their extreme posit~ons by the electric motor but - 1 - r~
which prevents reverse motion from the switch points to the electric motor. Accordingly, the switch points are posi-tively locked in their normal or reverse positions by the unidirectional clutch which eliminates the need of ancillary devices, such as, lock rods, plungers, etc., which were required in previous railroad switch installations. It is obvious that the unidirectional coupler may be used in any installation in which it is necessary to transmit bidirec-tional rotary movement from an input shaft to an output shaft and in which it is mandatory to ensure that no rotary movement will be conveyed from the output shaft to the input shaft. While previous one-way spring-type clutches have b~en proposed, it is advantageous to avoid the use of springs since they are susceptible to fatigue which results in failure of the clutch operation.
OBJECTS AWD S13MMARY OF l~IE INVE:~TIOl!~
Accordingly~ it is an object of this invention to pro-vide a new and improved irreversible rotary clutch mechanism.
Another object of this invention is to provide a uni~ue, nonreversible, free wheeling coupling device which only transfers rotary motion from an input shaft to an output shaft.
A further object of this invention is I;o provide a novql, nonreversible clutch including a one way transmission mechanism which interconnects an input driving shaft to an output driven shaft.
-- 2 _ 3~
Yet another ob~ect of thls invention is to provide an improved, nonreversible, free wheeling clutch having an input and an output shaft whlch are coupled together by a plurality of roller bearings caged between axially extending arcuate segments carried by the input shaft and an inner block member carried by the OlltpUt shaft to only permit rot~tional movement to be transmitted from the input shaft to the output shaft.
Yet a further ob~ect of this inventlon is to provide an irreversible clutch comprising, a hollow cylindrical housing having an axial bore for receiving a rotatable input shaft rotat,ably supported in said hollow cylindrical housing by a first ball bearing, said first ball bearing includes an inner race which is carrled by an intermediate enlarged portion of said input shaft and which is seated against a shoulaer portion formed on said intermediate enlarged portion of said input shaft, said first ball bearing includes an outer race which is seated against a shoulder portion in an annular undercut located in one end of said axial bore of said hollow cylindrical housing, a first split ring inserted into an internal annular groove formed in said axial bore for holding said first ball bearing ln place, a rotatable output shaft including a stem portion which is ~ournaled in a ~ournal bearing which is located in said input shaft, said output shaft Ls rotatably supported in sald hollow cyllndrical housing by a second ball bearing, ~- 3 -`, ' ~s~
said second ball bearing includes an inner race which is carried by an intermediate enlarged portion of said output shaft and which is seated against a collar portion ~ormed on said intermediate enlarged portlon of said output ~haft, said second ball bearing includes an outer race whlch ls seated against a shoulder portion formed in an annular undercut located in the other end of sald axlal bore of said hollow cylindrlcal housing, a second split ring inserted into an lnternal annular groove formed in said a~lal bore for holding sald second ball bearing in place, a nonrevergible transmission mechanlsm interconnectlng sald input shaft to said output shaft, said nonreverslble transmission mechanlsm lncludlng a plurality of arcuate segments carrled by and integral wlth said input shaft and a block member havlng a plurallty of contact surfaces carried by and lntegral with said output shaft, and a plurality of roller bearings caged between said plurality of arcuate segments and cooperatively aasociated with said plurality of contact surfaces and said axial bore to allow rotary movement to be transferred from said input shaft to sald output shaft by causing said plurality of arcuate segments to spin said plurallty of roller bearings to work on sald plurality of contact surfaces and to prevent rotary movement from being transferred from sald output shaft to said input shaft by causlng sald plurallty of contact surfacea to lock said plurality of roller bearings against sald axlal bore.
~ - 3-A -..
3~
Still another object of this invention is to provide a unlque and improved irreversible free wheel.ing clutch which - 3-s -. .
~Z~3~
is simple in design, economical in construction, reliable in operationt efficient in service and durable in use.
BRIEF DESCRIPTION OF THE DRAWI~GS
The above objects and other attendant features and advantages of the invention will become more readily evident from the following detailed description when considered in conjunction with the accompanying drawings in which:
FIG. 1 is a longitudinal view, partly in section, of an irreversible rotary free wheeling clutch according to the present invention.
FIG~ 2 is a cross-sectional view taken substantially along line II-II of FIG. 1.
DETAILED DESCRIPTION OF THE I~VENTIO~
Referring now to the drawing, and in particular to FIG~ 1, there is shown an irreversible rotaxy clutch or unidirectional free wheeling coupling davice which is gener-ally characteri ed by numeral l. As shown, the unidirectional clutch 1 includes a hollow cylindrical housing or casing member 2 having an axi~l bore 3 for receiving the nonrever-sible one-way transmission mechanism which interconnects an input driving shaft 4 and an outpwt driven shaft 5. The input shaft 4 includes an external reduced portion 6 which is suitably coupled to the driveshaft of a prime mover, such as, an electric motor or the like. The shaft 4 i9 rotatably supported on a ball bearing 8. The inner race of bearing 8 is ~l~5~
carried by an inte~mediate enlarged portion 9 of driveshaft 4 while the outer race of baaring 8 is seated in an annular undercut 10 formed in the right end of axial bore 3 of housing 2 as shown in FIG. lo A split retaining ring 11 is inserted into an internal annular groove 12 formed in the axial bore 3 to hold the bearing 8 in place against shoulder portions 13 and 14 formed in bore 3 and on shaft 4, respectively.
It will be seen that the driven output shaft 5 includes an external reduced portion 15 which may be suitably con nected through appropriate coupling means to the swit¢h points of the track switch for movement between normal and reverse positions as is well known. The output shaft 5 includes an intermediate enlarged portion 16 which cooperates with the inner race of a ball bearing 17. The outer race of bearing 17 is fitted into an annular undercut 18 formed in the left end of axial bore 3, as shown in FIG. 1. A split retaining ring 19 is inserted into an internal annular groove 20 formed in the axial bore 3 to hold the bearing 17 in place ayainst shoulder portion 21 formed in th~ axial boxe 3 and against collar portion 22 which is part of the shaft 5u As shown, the left end of housing 2 is provided with a flange 23 which includes a plurality of mounting holes or apertures 24 for internally securing the free wheeling clutch 1 in the casing of the railroad switch mechanism.
~ 5~`3~
Referring now to FIGS. 1 and 2, it will be seen that the unidirectional rotary transfer mechanism includes a plurality of cylinder roller bearing~ 25 which are caged between a plurality of axial extending outer arcuate portions or segments 26 and which are captured ~etween the multi-contact surfaces 27 of inner block member 28 and the axial bore 3. The four arcuate segments 26 are an integral part of the enlarged portion of the input shaft 4 while the four-sided square member 28 is an integral part of the output shaft 5. In viewing FIG. l, it will be noted that the inner extremity of shaft 5 is provided with a stem portion 29 which cooperates with a journal bearing 30 which is press-fitted into bore hole 31 formed in the inner enlarged portion of shaft 4. The stem 29 and jourral 30 not only stabilize the kwo shafts but also assist in the alignment of the entire assembly.
In describing the operation of the irreversible free wheeliny clutch, it will be assumed that the parts are assemhled and are in the positions shown in FIGS. 1 and 2 and that a rotational movement is imparted to the input shaft 4 by energization of the electric drive motor.
Further, let us assume that the rotation is in a clockwiæe direction as illustrated by solid-line arrow A. The cloc~-wise rotation imparted to shaft 4 causes the arcuate sections 26 to also revolve in a clockwise manner. ~hus, in vi.ewing FIGo 2, it will be seen that the l~ing edges 26a of the revolving segmants 26 will contact the peripheral surfaces of roller~ 25 to cause them to spin freely a~out thair respective axis. ~ccordingly, the free spinning rollers 25 impart a clockwise rotation to the output shaft 5 through contact surfaces 27 of the block portion 28. Now let us assume that the rotation of the electric motor is reversed so that the input shaft 4 is rotated in a counterclockwise direction, as shown by the dash-line arrow B. Under this condition, the leading edges 26b of arcuate extensions 26 contact the peripheral surfaces of rollers 25 to cause the rollers 25 to freely spin about the axial bore 3 thereby driving the output shaft 5 in a counterclockwise direction.
That is, the spinning roll~r bearings 25 work on the contact surfaces 27 of the block member 28 to cause the turning of the output shaft in a counterclockwise direction. Thus, any rotational movement imparted to the input shaft 4 is conveyed to the output shat 5 via the transmission mechanism.
Let us now assume that the electric drive motor is deenergized so that the input shaft 4 is idled and that vibrations or other extraneous orces ply to open the switch points. Under such a condition, a turning force or moment is imparted to the output shaft 5. Thus, the rotational motion imparted to shaft 5 causes the block portion 28 to rotate wherein the contact surfaces 27 urge ~2 ra ~
,~ the roller bearing ~aial~ outwardly against the axial bore 3 ko tightly lock the shaft 5 against any further rota-tional displacement~ Accordingly, any attempt to impart clockwise or counterclockwise rotation to shaft 5 results in the locking or jamming of the roller bearings 25 batween the contact surfaces 27 and th~ cylindrical bore 3 of the casing 2. Hence, the unidirectional clutch 1 is only capable of conveying rotational movement from the input shaft 4 to the output shaft 5 and is incapable of trans-mitting angular motion from the output shaft to the inputshaft.
It will be appreciated that the present invention finds particular utility in railroad switch machines~ but it is readily understood that the presently described irreversible, free wheeling clutch may be employed in other flelds which require the nonreversible conveyance of rotary motion between input and output shaftsO Further, it is understood that regardless of the manner in which the invention i9 employed~
it is apparent that various changes and modi~ications may be made by persons skilled in the art without departing from the spirit and scope of this invention. ~or example, it is understood that the quadruple arrangemen~ may be ~aried and the number of roller bearings 25, arcuate segments 26, and contact surfaces 27 may be increased or decreased depending upon the size and torque characteristic requirements demanded ~L~S~3~
of tha clutch. Thus, it will be appraciated that all varia-tions, alterations, and equiva~ents falling within the bounds of the present invention are herein meant to be included in the appended claims.
g _
IRREV
FIELD OF T~E I~VE~TION
This invention relates to an irreversible free wheeliny coupling mechanism and, more particularly, to a nonreversible clutch having a hollow cylindrical housing member for rotat-ably supporting an input and an output shaEt which ara interconnected by a plurality of roller bearings caged between axially extending ouker arcua-te portions carried by the input shaft and an inner block member carried by the output shaft to permit rotational movement to be transmi-tted from the input shaft to the output shaft and to prevent rota-tional movement to be transmi~.ted from the output shaft to ~he input shaft.
BACKGROUND O:F THE I~VENTIO~I
It is well known that free wheeling clutches are utilized in many industrial applications in which it is necessary to preclude reverse motion from the output to the input. For example, in electromechanical switch machines in railroad interlocking, it is essential to maintain the switch points in the position to which they have been moved and to prevent vibrations from inadvertently opening the switch points.
Thus, it is advantageous to couple the electric motor of the switch machine to the switch points throuyh a unidirec-tional clutch which permits the switch points to be dri~en between their extreme posit~ons by the electric motor but - 1 - r~
which prevents reverse motion from the switch points to the electric motor. Accordingly, the switch points are posi-tively locked in their normal or reverse positions by the unidirectional clutch which eliminates the need of ancillary devices, such as, lock rods, plungers, etc., which were required in previous railroad switch installations. It is obvious that the unidirectional coupler may be used in any installation in which it is necessary to transmit bidirec-tional rotary movement from an input shaft to an output shaft and in which it is mandatory to ensure that no rotary movement will be conveyed from the output shaft to the input shaft. While previous one-way spring-type clutches have b~en proposed, it is advantageous to avoid the use of springs since they are susceptible to fatigue which results in failure of the clutch operation.
OBJECTS AWD S13MMARY OF l~IE INVE:~TIOl!~
Accordingly~ it is an object of this invention to pro-vide a new and improved irreversible rotary clutch mechanism.
Another object of this invention is to provide a uni~ue, nonreversible, free wheeling coupling device which only transfers rotary motion from an input shaft to an output shaft.
A further object of this invention is I;o provide a novql, nonreversible clutch including a one way transmission mechanism which interconnects an input driving shaft to an output driven shaft.
-- 2 _ 3~
Yet another ob~ect of thls invention is to provide an improved, nonreversible, free wheeling clutch having an input and an output shaft whlch are coupled together by a plurality of roller bearings caged between axially extending arcuate segments carried by the input shaft and an inner block member carried by the OlltpUt shaft to only permit rot~tional movement to be transmitted from the input shaft to the output shaft.
Yet a further ob~ect of this inventlon is to provide an irreversible clutch comprising, a hollow cylindrical housing having an axial bore for receiving a rotatable input shaft rotat,ably supported in said hollow cylindrical housing by a first ball bearing, said first ball bearing includes an inner race which is carrled by an intermediate enlarged portion of said input shaft and which is seated against a shoulaer portion formed on said intermediate enlarged portion of said input shaft, said first ball bearing includes an outer race which is seated against a shoulder portion in an annular undercut located in one end of said axial bore of said hollow cylindrical housing, a first split ring inserted into an internal annular groove formed in said axial bore for holding said first ball bearing ln place, a rotatable output shaft including a stem portion which is ~ournaled in a ~ournal bearing which is located in said input shaft, said output shaft Ls rotatably supported in sald hollow cyllndrical housing by a second ball bearing, ~- 3 -`, ' ~s~
said second ball bearing includes an inner race which is carried by an intermediate enlarged portion of said output shaft and which is seated against a collar portion ~ormed on said intermediate enlarged portlon of said output ~haft, said second ball bearing includes an outer race whlch ls seated against a shoulder portion formed in an annular undercut located in the other end of sald axlal bore of said hollow cylindrlcal housing, a second split ring inserted into an lnternal annular groove formed in said a~lal bore for holding sald second ball bearing in place, a nonrevergible transmission mechanlsm interconnectlng sald input shaft to said output shaft, said nonreverslble transmission mechanlsm lncludlng a plurality of arcuate segments carrled by and integral wlth said input shaft and a block member havlng a plurallty of contact surfaces carried by and lntegral with said output shaft, and a plurality of roller bearings caged between said plurality of arcuate segments and cooperatively aasociated with said plurality of contact surfaces and said axial bore to allow rotary movement to be transferred from said input shaft to sald output shaft by causing said plurality of arcuate segments to spin said plurallty of roller bearings to work on sald plurality of contact surfaces and to prevent rotary movement from being transferred from sald output shaft to said input shaft by causlng sald plurallty of contact surfacea to lock said plurality of roller bearings against sald axlal bore.
~ - 3-A -..
3~
Still another object of this invention is to provide a unlque and improved irreversible free wheel.ing clutch which - 3-s -. .
~Z~3~
is simple in design, economical in construction, reliable in operationt efficient in service and durable in use.
BRIEF DESCRIPTION OF THE DRAWI~GS
The above objects and other attendant features and advantages of the invention will become more readily evident from the following detailed description when considered in conjunction with the accompanying drawings in which:
FIG. 1 is a longitudinal view, partly in section, of an irreversible rotary free wheeling clutch according to the present invention.
FIG~ 2 is a cross-sectional view taken substantially along line II-II of FIG. 1.
DETAILED DESCRIPTION OF THE I~VENTIO~
Referring now to the drawing, and in particular to FIG~ 1, there is shown an irreversible rotaxy clutch or unidirectional free wheeling coupling davice which is gener-ally characteri ed by numeral l. As shown, the unidirectional clutch 1 includes a hollow cylindrical housing or casing member 2 having an axi~l bore 3 for receiving the nonrever-sible one-way transmission mechanism which interconnects an input driving shaft 4 and an outpwt driven shaft 5. The input shaft 4 includes an external reduced portion 6 which is suitably coupled to the driveshaft of a prime mover, such as, an electric motor or the like. The shaft 4 i9 rotatably supported on a ball bearing 8. The inner race of bearing 8 is ~l~5~
carried by an inte~mediate enlarged portion 9 of driveshaft 4 while the outer race of baaring 8 is seated in an annular undercut 10 formed in the right end of axial bore 3 of housing 2 as shown in FIG. lo A split retaining ring 11 is inserted into an internal annular groove 12 formed in the axial bore 3 to hold the bearing 8 in place against shoulder portions 13 and 14 formed in bore 3 and on shaft 4, respectively.
It will be seen that the driven output shaft 5 includes an external reduced portion 15 which may be suitably con nected through appropriate coupling means to the swit¢h points of the track switch for movement between normal and reverse positions as is well known. The output shaft 5 includes an intermediate enlarged portion 16 which cooperates with the inner race of a ball bearing 17. The outer race of bearing 17 is fitted into an annular undercut 18 formed in the left end of axial bore 3, as shown in FIG. 1. A split retaining ring 19 is inserted into an internal annular groove 20 formed in the axial bore 3 to hold the bearing 17 in place ayainst shoulder portion 21 formed in th~ axial boxe 3 and against collar portion 22 which is part of the shaft 5u As shown, the left end of housing 2 is provided with a flange 23 which includes a plurality of mounting holes or apertures 24 for internally securing the free wheeling clutch 1 in the casing of the railroad switch mechanism.
~ 5~`3~
Referring now to FIGS. 1 and 2, it will be seen that the unidirectional rotary transfer mechanism includes a plurality of cylinder roller bearing~ 25 which are caged between a plurality of axial extending outer arcuate portions or segments 26 and which are captured ~etween the multi-contact surfaces 27 of inner block member 28 and the axial bore 3. The four arcuate segments 26 are an integral part of the enlarged portion of the input shaft 4 while the four-sided square member 28 is an integral part of the output shaft 5. In viewing FIG. l, it will be noted that the inner extremity of shaft 5 is provided with a stem portion 29 which cooperates with a journal bearing 30 which is press-fitted into bore hole 31 formed in the inner enlarged portion of shaft 4. The stem 29 and jourral 30 not only stabilize the kwo shafts but also assist in the alignment of the entire assembly.
In describing the operation of the irreversible free wheeliny clutch, it will be assumed that the parts are assemhled and are in the positions shown in FIGS. 1 and 2 and that a rotational movement is imparted to the input shaft 4 by energization of the electric drive motor.
Further, let us assume that the rotation is in a clockwiæe direction as illustrated by solid-line arrow A. The cloc~-wise rotation imparted to shaft 4 causes the arcuate sections 26 to also revolve in a clockwise manner. ~hus, in vi.ewing FIGo 2, it will be seen that the l~ing edges 26a of the revolving segmants 26 will contact the peripheral surfaces of roller~ 25 to cause them to spin freely a~out thair respective axis. ~ccordingly, the free spinning rollers 25 impart a clockwise rotation to the output shaft 5 through contact surfaces 27 of the block portion 28. Now let us assume that the rotation of the electric motor is reversed so that the input shaft 4 is rotated in a counterclockwise direction, as shown by the dash-line arrow B. Under this condition, the leading edges 26b of arcuate extensions 26 contact the peripheral surfaces of rollers 25 to cause the rollers 25 to freely spin about the axial bore 3 thereby driving the output shaft 5 in a counterclockwise direction.
That is, the spinning roll~r bearings 25 work on the contact surfaces 27 of the block member 28 to cause the turning of the output shaft in a counterclockwise direction. Thus, any rotational movement imparted to the input shaft 4 is conveyed to the output shat 5 via the transmission mechanism.
Let us now assume that the electric drive motor is deenergized so that the input shaft 4 is idled and that vibrations or other extraneous orces ply to open the switch points. Under such a condition, a turning force or moment is imparted to the output shaft 5. Thus, the rotational motion imparted to shaft 5 causes the block portion 28 to rotate wherein the contact surfaces 27 urge ~2 ra ~
,~ the roller bearing ~aial~ outwardly against the axial bore 3 ko tightly lock the shaft 5 against any further rota-tional displacement~ Accordingly, any attempt to impart clockwise or counterclockwise rotation to shaft 5 results in the locking or jamming of the roller bearings 25 batween the contact surfaces 27 and th~ cylindrical bore 3 of the casing 2. Hence, the unidirectional clutch 1 is only capable of conveying rotational movement from the input shaft 4 to the output shaft 5 and is incapable of trans-mitting angular motion from the output shaft to the inputshaft.
It will be appreciated that the present invention finds particular utility in railroad switch machines~ but it is readily understood that the presently described irreversible, free wheeling clutch may be employed in other flelds which require the nonreversible conveyance of rotary motion between input and output shaftsO Further, it is understood that regardless of the manner in which the invention i9 employed~
it is apparent that various changes and modi~ications may be made by persons skilled in the art without departing from the spirit and scope of this invention. ~or example, it is understood that the quadruple arrangemen~ may be ~aried and the number of roller bearings 25, arcuate segments 26, and contact surfaces 27 may be increased or decreased depending upon the size and torque characteristic requirements demanded ~L~S~3~
of tha clutch. Thus, it will be appraciated that all varia-tions, alterations, and equiva~ents falling within the bounds of the present invention are herein meant to be included in the appended claims.
g _
Claims (6)
1. An irreversible clutch comprising, a hollow cylindrical housing having an axial bore for receiving a rotatable input shaft rotatably supported in said hollow cylindrical housing by a first ball bearing, said first ball bearing includes an inner race which is carried by an intermediate enlarged portion of said input shaft and which is seated against a shoulder portion formed on said intermediate enlarged portion of said input shaft, said first ball bearing includes an outer race which is seated against a shoulder portion in an annular undercut located in one end of said axial bore of said hollow cylindrical housing, a first split ring inserted into an internal annular groove formed in said axial bore for holding said first ball bearing in place, a rotatable output shaft including a stem portion which is journaled in a journal bearing which is located in said input shaft, said output shaft is rotatably supported in said hollow cylindrical housing by a second ball bearing, said second ball bearing includes an inner race which is carried by an intermediate enlarged portion of said output shaft and which is seated against a collar portion formed on said intermediate enlarged portion of said output shaft, said second ball bearing includes an outer race which is seated against a shoulder portion formed in an annular undercut located in the other end of said axial bore of said hollow cylindrical housing, a second split ring inserted into an internal annular groove formed in said axial bore for holding said second ball bearing in place, a nonreversible transmission mechanism interconnecting said input shaft to said output shaft, said nonreversible transmission mechanism including a plurality of arcuate segments carried by and integral with said input shaft and a block member having a plurality of contact surfaces carried by and integral with said output shaft, and a plurality of roller bearings caged between said plurality of arcuate segments and cooperatively associated with said plurality of contact surfaces and said axial bore to allow rotary movement to be transferred from said input shaft to said output shaft by causing said plurality of arcuate segments to spin said plurality of roller bearings to work on said plurality of contact surfaces and to prevent rotary movement from being transferred from said output shaft to said input shaft by causing said plurality of contact surfaces to lock said plurality of roller bearings against said axial bore.
2. The irreversible clutch, as defined in claim 1, wherein each of said arcuate segments of said input shaft includes leading edges which contact and spin said roller bearings to drive said block member of said output shaft.
3. The irreversible clutch, as defined in claim 1, wherein said block member includes four contact surfaces, each of which is cooperatively associated with one of said plurality of roller bearings.
4. The irreversible clutch, as defined in claim 1, wherein said plurality of arcuate segments extend axially along the longitudinal axis of said input shaft.
5. The irreversible clutch, as defined in claim 1, wherein said hollow cylindrical housing includes an apertured mounting flange.
6. The irreversible clutch, as defined in claim 1, wherein said plurality of arcuate segments are radially outwardly disposed with respect to said plurality of contact surfaces of said block member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68220184A | 1984-12-17 | 1984-12-17 | |
| US682,201 | 1984-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1256390A true CA1256390A (en) | 1989-06-27 |
Family
ID=24738660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000496273A Expired CA1256390A (en) | 1984-12-17 | 1985-11-27 | Irreversible free wheeling clutch |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU5128285A (en) |
| BR (1) | BR8506309A (en) |
| CA (1) | CA1256390A (en) |
| IN (1) | IN166400B (en) |
| IT (2) | IT1235465B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU613927B2 (en) * | 1987-06-29 | 1991-08-15 | Samuel Arthur Thomas Woodbridge | Coupling |
-
1985
- 1985-11-27 CA CA000496273A patent/CA1256390A/en not_active Expired
- 1985-12-04 IN IN978/MAS/85A patent/IN166400B/en unknown
- 1985-12-16 BR BR8506309A patent/BR8506309A/en unknown
- 1985-12-16 AU AU51282/85A patent/AU5128285A/en not_active Abandoned
- 1985-12-16 IT IT8568058A patent/IT1235465B/en active
- 1985-12-16 IT IT5423385U patent/IT8554233V0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IN166400B (en) | 1990-04-28 |
| IT1235465B (en) | 1992-08-19 |
| AU5128285A (en) | 1986-06-26 |
| IT8554233V0 (en) | 1985-12-16 |
| BR8506309A (en) | 1986-08-26 |
| IT8568058A0 (en) | 1985-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |