CN1287102C - Rotation activated one-way clutch - Google Patents
Rotation activated one-way clutch Download PDFInfo
- Publication number
- CN1287102C CN1287102C CNB2004100049230A CN200410004923A CN1287102C CN 1287102 C CN1287102 C CN 1287102C CN B2004100049230 A CNB2004100049230 A CN B2004100049230A CN 200410004923 A CN200410004923 A CN 200410004923A CN 1287102 C CN1287102 C CN 1287102C
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- China
- Prior art keywords
- way clutch
- rolling
- inner race
- biasing
- race
- 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 - Fee Related
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- 230000005484 gravity Effects 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
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- 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
- F16D43/16—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 clutching members having interengaging parts
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- 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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
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- 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 one-way clutch is composed of an outer race having an internal cylindrical surface, an inner race forming a cam surface, a roller transmitting torque between the inner race and the outer race, an eccentric spring inclining the roller, and a weight member resisting the eccentric force of the eccentric spring by using centrifugal force and propelling the roller for assembling direction. A cage is formed between the outer race and the inner race to contain the roller, the weight member and the eccentric spring. The cage has the weight member acting surface to guide movement of the weight member.
Description
Technical Field
The present invention relates to a rotary working type one-way clutch for an automatic motorcycle or a motorcycle ski, and functions as a one-way clutch also when the number of revolutions is greater than a predetermined value.
Background
Generally, a one-way clutch includes an outer race and an inner race that rotate relative to each other, and is designed such that torque is transmitted only in one direction by engaging a retaining ring or a roller for transmitting the torque between the outer race and the inner race, a cam surface is provided on a guide surface of the outer race or the inner race, and idling is performed in the opposite direction.
In this type of one-way clutch, the rollers of the one-way clutch are disposed in recesses (recessed portions) provided in the inner race or the outer race, and the rotation is locked by a wedge action, which is achieved by engaging the rollers with sprags in the recesses, depending on the direction of rotation.
For example, japanese patent publication No.53-8019(1978) discloses a device in which rollers are placed in recesses provided in an outer ring, and when the outer ring is rotated in a clockwise direction, the rollers are locked in the recesses by a wedging action, thereby locking the rotation of the outer ring relative to the inner ring.
Further, japanese patent application laid-open No.52-100045(1977) discloses an apparatus in which a roller and an auxiliary roller are interposed between an outer ring and an input coupling, so that if the number of revolutions is greater than a predetermined value, the auxiliary roller is pushed onto the roller by centrifugal force. In this case, when the urging force causes a rotational movement in a predetermined direction, the rollers can be locked by a wedge action, thereby performing the function of the one-way clutch.
The device disclosed in the above-mentioned japanese patent publication No.53-8019 is a conventional or standard one-way clutch using rollers, and is not designed in a form to achieve locking by the number of revolutions.
Further, the device disclosed in the above-mentioned Japanese patent application laid-open No.52-100045 is locked by the number of rotations. However, since the extended hole for determining the working range of the auxiliary roller is provided in a different member from the outer ring, it is difficult for the apparatus to obtain desired dimensional accuracy, and the number of parts is increased. Further, since there is a fear that the auxiliary roller gets caught by the extended hole, a plate for pushing the roller or a holding transfer member is provided, thereby requiring a spring installation space, thereby limiting the reduction of the diameter of the device.
Further, in a cage in which a coil spring is used as a roller biasing spring, it is difficult to adjust the spring constant of the coil spring to a small value in a limited space, and the coil spring may be more expensive than a accordion spring.
Disclosure of Invention
Accordingly, it is an object of the present invention to provide a rotary working type one-way clutch, which can be reduced in the number of parts, is inexpensive, can be set to a small value in its spring constant, is easy to achieve a desired dimensional accuracy, can be free from the blocking of the gravity parts, and can be implemented in a limited space.
To achieve the above object, the present invention provides a rotary working type one-way clutch including: an outer ring having a cylindrical inner peripheral surface; an inner race having a cam surface formed thereon; a rolling element for transmitting torque between said outer race and said inner race; a biasing spring for biasing said rolling member; and a gravity member for urging the rolling member in the engaging direction while resisting the biasing force of the biasing spring by a centrifugal force; wherein an annular cage for accommodating the rolling member, the weight member and the biasing spring is provided between the outer race and the inner race, and the annular cage has a weight member acting surface for guiding the movement of the weight member.
Further, the present invention provides a rotary working type one-way clutch including: an outer ring having a cylindrical inner peripheral surface; an inner race having a cam surface formed thereon; a rolling element for transmitting torque between said outer race and said inner race; a biasing spring for biasing said rolling member; and a gravity member for urging the rolling member in the engaging direction while resisting the biasing force of the biasing spring by a centrifugal force; wherein the inner ring is provided with a curved recess portion on an outer circumferential surface thereof for partially accommodating the weight member.
Further, the present invention provides a rotary working type one-way clutch including an outer race having a cylindrical inner peripheral surface, an inner race having a cam surface formed thereon, a rolling member for transmitting torque between the outer race and the inner race, a biasing spring for biasing the rolling member, and a weight member for urging the rolling member in an engaging direction against a biasing force of the biasing spring by a centrifugal force. And wherein, a retainer for accommodating the rolling component, the gravity component and the bias spring is arranged between the outer ring and the inner ring, or a side plate for limiting the axial movement of the rolling component is arranged, and the retainer or the side plate is provided with an axial through hole.
Further, the present invention provides a rotary working type one-way clutch including an outer race having a cylindrical inner peripheral surface, an inner race on which a cam surface is formed, a rolling member for transmitting torque between the outer race and the inner race, a biasing spring for biasing the rolling member, and a weight member for urging the rolling member toward an engaging direction when the biasing force of the biasing spring is resisted by centrifugal force. And wherein the gravity member is in contact with the inner race in a tangential direction.
According to the present invention described above, the following effects can be achieved.
Since the biasing spring biases the rolling member in the non-engaging direction with respect to the cam surface and a weight member is provided for urging the rolling member in the engaging direction with respect to the cam surface while resisting the biasing force of the biasing spring by centrifugal force, the number of parts of the rotary-working one-way clutch can be reduced, the price is low, the spring constant thereof can be adjusted to a small value, the desired dimensional accuracy can be easily achieved, the weight member can be free from being caught, and the design can be implemented in a limited space.
In addition, the present invention can achieve the following special effects.
According to the present invention, the gravity member can be operated smoothly. In addition, the manufacturing cost can be reduced. For example, in the case where the notch portion is provided in the inner ring, although the portion corresponding to the notch portion must be eliminated by grinding, cutting and/or wire cutting, since the portion corresponding to the notch portion is large in volume, the operation time becomes long and deformation due to heat treatment easily occurs. In addition, the range of high precision required for the cam surface can be reduced. In addition, a large weight member can be accommodated, and the lubricating capability of the one-way clutch can be improved. Also, the operation can be more convenient, and the productivity can be improved.
The device of the invention can eliminate the extra action of the rolling component in the non-working state. The operation can be more convenient and the production capacity is improved. The strength of the cage can be balanced.
In this specification, the term "rotation operation type" means that the one-way clutch can surely perform its function in a rotation speed range larger than a predetermined rotation number. However, the one-way clutch may also perform its function in a low rotational speed range and/or a rotational speed range smaller than a predetermined number of revolutions. Further, the "predetermined number of rotations" may be determined by itself according to the mass of the weight member, the distance between the weight member and the center of the inner race, and the inclination angle of the acting surface of the weight member.
Brief description of the drawings
Fig. 1 is a front view of a rotary working one-way clutch according to a first embodiment of the present invention.
FIG. 2 is a schematic view of a notch portion viewed from the outer diameter side of the first embodiment of the present invention;
FIG. 3 is an axial cross-sectional view of a rotary operating one-way clutch according to a first embodiment of the present invention;
FIG. 4 is a view of the rollers and gravity assembly in a non-rotating condition and during low speed rotation in a first embodiment of the present invention;
FIG. 5 is a view of the rollers and gravity assembly in an operational state (engaged state) in accordance with the first embodiment of the present invention;
FIG. 6 is a front view of a rotary working one-way clutch according to a second embodiment of the present invention;
FIG. 7 is an axial cross-sectional view of a rotary operating one-way clutch according to a second embodiment of the present invention;
FIG. 8 is a view of a roller and a weight member in a non-rotating state and during low speed rotation in a second embodiment of the present invention;
FIG. 9 is a view of a roller and a gravity member in an operating state (engaged state) in accordance with a second embodiment of the present invention;
FIG. 10 is an expanded view of the retainer (first plate) according to the second embodiment of the present invention;
FIG. 11 is a development view of a retainer (second plate) in the second embodiment of the present invention;
FIG. 12 is a schematic view of a notch portion seen from the outer diameter side of the second embodiment of the present invention; and
FIG. 13 is a front view of an accordion spring attachment in a second embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be fully described with reference to the accompanying drawings. In the drawings, like parts are designated by like reference numerals.
(first embodiment)
First, a first embodiment of the present invention will be explained. Fig. 1 shows a front view of a rotationally operating one-way clutch 30 according to a first embodiment of the present invention, and fig. 2 shows an outline of a notch portion as viewed from the outer diameter side of the first embodiment.
The rollers 37, weight members 38, and accordion springs 35 form part of a one-way clutch, which are received and retained in a window 43 provided in the cage 32 (see fig. 2 and 4).
A substantially annular cage 32 interposed between the outer ring 3 and the inner ring 2 is a cage body, and a substantially annular support plate 34 is provided at an axial end of the cage 32. The support plate 34 is fixed to the holder 32 by the holder connecting portion 33.
In each of the window portions 43 equidistantly distributed in the circumferential direction of the cage 32, an accordion spring 35 for biasing the roller 37 from the outer ring 3 side, a roller 37 for transmitting torque between the outer ring 3 and the inner ring 2, and a weight member 38 for acting on the roller 37 to urge the roller 37 toward the engaging direction are accommodated. When the weight member 38 does not act on the roller, a part of the weight member 38 is accommodated in the recess 31 provided in the outer circumferential surface of the inner ring 2. The radius of the drawn arc along the bottom surface of the recess 31 is larger than the radius of the weight member 38, and the weight member 38 comes into contact with the recess 31 along a straight line. With this arrangement, the gravity member is not caught by the recess 31, so that the movement is smooth, thereby improving the operability of the apparatus.
The retainer 32 is provided with recesses 36 each having a radial cross section of a laid-down U shape, and one end of the accordion spring 35 opposite to the end of the accordion spring 35 for biasing the roller 37 is fitted into and held by the recesses 36 (see fig. 4).
As can be seen from fig. 2, the window portion 43 of the cage 32 is formed by drilling into the cage 32 in the axial direction while leaving a wall portion. The axial open end of the window portion 43 is closed by the support plate 34. Therefore, the accordion springs 35, the rollers 37, and the weight member 38 accommodated in the window 43 are held by the wall surface of the cage 32 and the support plate 34 in the axial direction, and are held by the outer race 3 and the inner race 2 in the radial direction, so that these members cannot be removed from the window 43.
Fig. 3 shows an axial cross-sectional view of the rotary working one-way clutch 30. It can be seen that the support plate 34 is fixed to the cage (cage)32 by means of a cage connection 33. Furthermore, it can be seen that the rollers 37 have a small clearance between the wall of the cage 32 and the support plate 34 and are axially supported.
Next, the operation of the rotary working one-way clutch 30 of the first embodiment will be explained with reference to fig. 4 and 5. Fig. 4 shows a view of the roller and the weight member in a non-rotating state and during low-speed rotation in the first embodiment, and fig. 5 shows a view of the roller and the weight member in an operating state (engaged state) in the first embodiment.
The arrangement of the first embodiment will be described in more detail below with reference to fig. 4. The cage 32 includes a plurality of projections 44 fitted into a plurality of grooves 45 provided in the outer circumferential surface of the inner ring 2 and arranged at equal intervals in the circumferential direction thereof. Since the projections 44 are fitted into the grooves 45, the cage 32 and the inner ring 2 cannot rotate relative to each other.
The weight member acting surface 40 is formed on one of the side surfaces of the window portion 43 of the holder 32. When the weight member 38 is subjected to centrifugal force, the weight member moves toward the outer diameter side along the weight member acting surface to contact and push the roller 37, thereby moving the roller 37 to the engaged position. Further, a roller lock portion (rolling member lock portion) 42 for restricting an operating range of the roller 37 in the direction of the weight member 38 is provided on the outer diameter side. In the illustrated embodiment, the weight member acting surface 40 and the roller lock portion 42 are provided continuously, but need not be provided continuously.
At a position opposed to the weight member acting surface 40 and the roller lock portion 42 of the cage 32 in the outer peripheral surface of the inner ring 2, a recessed portion 31 for partially accommodating the weight member 38 is provided, and the cam surface 47 is formed adjacent to the recessed portion 31 as a torque transmission surface of the roller 37. In the illustrated embodiment, the recessed portion is continuous with the cam surface 47, but need not be.
The reason why the recess 31 partially accommodates the weight member 38 is to minimize the working range of the weight member 38.
As shown in fig. 4, in the non-rotating state and during low-speed rotation (range), the weight member 38 is located on the inner diameter side of the recessed portion, and the roller 37 is pushed onto the roller lock portion 42 by the accordion spring 35. Thereafter, the inner ring 2 is rotated. When the inner ring rotation speed reaches a high speed greater than a predetermined rotation speed, the gravity member 38 subjected to the centrifugal force is moved to the outer diameter side, thereby moving the rollers 37 to the engagement position of the cam surfaces 47. In this case, when the inner race 2 rotates counterclockwise in a leading manner with respect to the outer race 3, torque is transmitted. Fig. 5 shows this operating situation.
(second embodiment)
Next, a second embodiment of the present invention will be explained with reference to fig. 6 to 13. In the second embodiment, the positional relationship among the weight member 38, the roller 37 and the accordion spring 35 and the operation of these members are substantially the same as those of the first embodiment. In the second embodiment, the shape of the cage is largely different from that of the first embodiment.
Next, the cage used in the second embodiment will be explained with reference to fig. 10 and 11. Fig. 10 shows an expanded view of the first plate 60 of the retainer 50 in the second embodiment, and fig. 11 shows an expanded view of the second plate 70 of the retainer 50 in the second embodiment.
In the second embodiment, the retainer 50 is formed by punching a plate-shaped steel plate to form the first and second plates. Fig. 10 shows an expanded view of the first plate. The first plate 60 includes a plurality of projections extending radially from a generally annular body 66. Each projection is a first cylindrical portion 51 in which an opening 62 is formed for attachment of the accordion spring 35. A plurality of openings 67 connected to the notch portion or the window portion of the holder and to the outside are formed in the outer peripheral surface of the ring body 66. Metal powder and impurities generated in the one-way clutch, and dirt in the lubricating oil can be discharged to the outside through the opening 67. The aperture may be formed in a side plate (not shown) rather than the cage. In addition, the number of the openings can be freely selected, and a plurality of openings are not required.
A clamping hole (64) for connection to a second plate 70, which will be described later, is formed in the ring body 66. Further, two engaging projections 65 for fixing the cage 50 to the inner ring 2 are provided at the inner diameter side of the ring body 66. Preferably, the projections, the clamping holes 64, and the engaging projections 65 are arranged equidistantly in the circumferential direction. The engaging projection 65 is fitted into the groove 54 of the inner ring 2 to fix the entire cage to the inner ring 2.
Fig. 11 shows an expanded view of the second plate 70. The second plate 70 includes a plurality of projections extending radially from a generally annular body 75. Each projection includes a second cylindrical portion 72 and a caulking projection 71, and a weight member acting surface 52 (described later) is formed between the second cylindrical portion 72 and the projection 71.
Two engaging projections 74 for fixing the cage 51 to the inner ring 2 are provided on the inner diameter side of the ring body 75. Preferably, the projections are arranged equidistantly in the circumferential direction from the engaging projections 74. The cage 50 (refer to fig. 6 and 7) of the second embodiment is obtained by bending the first plate 60 and the second plate 70 to a desired shape and then joining the two together.
Next, the rotary working one-way clutch 80 of the second embodiment will be fully explained with reference to fig. 6 to 13. Fig. 6 shows a front view of a rotary working one-way clutch 80 of a second embodiment of the present invention, and fig. 7 shows an axial sectional view of the rotary working one-way clutch 80 of the second embodiment; further, fig. 8 shows a view of the roller and the weight member in a non-rotating state and during low-speed rotation in the second embodiment, and fig. 9 shows a view of the roller and the weight member in an operating state (engaged state) in the second embodiment.
In fig. 6, a cam surface 47 provided on the outer peripheral surface of the inner ring 2 is basically the same as that of the first embodiment. The second embodiment differs from the first embodiment in that the working surface for the weight member 38 is formed in a projection provided on a first or second plate constituting the holder 50.
The retainer 50 is formed by the connecting portion 53 by fitting the caulking projections 71 of the second plate 70 into the clamping holes 64 of the first plate 60 and performing caulking. The bulging portion of the second plate 70 is bent to a position on the inner peripheral surface of the outer ring 3, thereby forming the weight member acting surface 52 at a predetermined inclination angle from the radial direction.
Fig. 7 is an axial cross-sectional view of fig. 6. As can be seen, the cage 50 includes a first plate 60 and a second plate 70.
Next, the operation of the one-way clutch 80 of the second embodiment will be described with reference to fig. 8 and 9. The basic operation is the same as in the first embodiment. As shown in fig. 8, in the non-rotating state and during low-speed rotation, the weight member 38 is located on the inner diameter side of the recess 31, and the roller 37 is urged toward the non-engaging direction by the accordion spring 35.
Thereafter, the inner ring 2 is rotated. When the rotational speed of the inner race reaches a high speed greater than a predetermined rotational speed, the weight 38 subjected to the centrifugal force is moved toward the outer diameter side along the weight acting surface 52, thereby moving the roller 37 to the engaging position of the cam surface 47. In this case, when the inner race 2 rotates counterclockwise in a leading manner with respect to the outer race 3, torque is transmitted. Fig. 9 shows this operating situation.
The relationship between the retainer 50 and the accordion spring 35 is as follows. Fig. 12 shows an outline of a notch portion as viewed from the outer diameter side of the second embodiment. FIG. 13 shows a front view of an accordion spring appendage in a second embodiment of the present invention.
As shown in fig. 12, the end of the accordion spring 35 is an abutting portion 58 for pushing the roller 37, and the beginning of the accordion spring 35 is a connecting portion 57. The accordion spring 35 is fixed to the holder 50 by sandwiching the first column portion 51 by the connecting portion 57. In addition, the accordion spring 35 is also stably fixed by engaging the projection 56 on the connecting portion with the opening 62.
Fig. 13 shows the state of connection of the connecting portions 57 of the accordion springs 35, and it can be seen that the projections 56 provided at the ends of the connecting portions 57 are fitted into the openings 62 of the first plate 60 of the holder.
The second embodiment can reduce the manufacturing cost.
Incidentally, although it is considered that the gravity member may be made of steel, copper, alloy steel, aluminum, or synthetic resin, when the gravity member is made of a high specific gravity material such as steel, since the centrifugal force acting on a unit area becomes large, even when the apparatus is compact, the joining can be achieved during low-speed rotation. Further, the diameter of the weight member 38 may be reduced.
In the above-described embodiments, although the illustrated embodiment is such that cylindrical rollers are used as the rolling members and are disposed in the recess portions, a spherical body may be used as the rolling members. Furthermore, the weight member may be a sphere rather than a cylindrical roller. Further, in the case of a combination of rolling members and gravity members, both of these members may be rollers or balls, or one of these members may be rollers and the other may be balls.
Further, in the above-described embodiment, although the plurality of notch portions are provided in the circumferential direction, the number of notch portions may be varied depending on the required maximum torque or the like, and four or six instead of eight notch portions may be provided, for example. In any case, the notch portions are preferably arranged equidistantly in the circumferential direction, regardless of the number of the notch portions.
In the first and second embodiments, although the diameters of the roller and the weight member are substantially the same in the illustrated example, the diameters are not necessarily the same and may be adjusted by themselves according to the use situation (for example, the rotation number range in the efficient operation state).
Claims (9)
1. A rotary working one-way clutch comprising:
an outer ring having a cylindrical inner peripheral surface;
an inner race having a cam surface formed thereon;
a rolling element for transmitting torque between said outer race and said inner race;
a biasing spring for biasing said rolling member; and
a gravity member for urging the rolling member toward an engaging direction while resisting a biasing force of the biasing spring by a centrifugal force;
wherein,
an annular cage for accommodating the rolling elements, the weight element and the biasing spring is disposed between the outer race and the inner race, and the annular cage has a weight element acting surface for guiding movement of the weight element.
2. A rotary working one-way clutch comprising:
an outer ring having a cylindrical inner peripheral surface;
an inner race having a cam surface formed thereon;
a rolling element for transmitting torque between said outer race and said inner race;
a biasing spring for biasing said rolling member; and
a gravity member for urging the rolling member toward an engaging direction while resisting a biasing force of the biasing spring by a centrifugal force;
wherein,
the inner ring is provided with a curved recess on its outer circumferential surface for partially receiving the weight member.
3. A rotary working one-way clutch comprising:
an outer ring having a cylindrical inner peripheral surface;
an inner race having a cam surface formed thereon;
a rolling element for transmitting torque between said outer race and said inner race;
a biasing spring for biasing said rolling member; and
a gravity member for urging the rolling member toward an engaging direction while resisting a biasing force of the biasing spring by a centrifugal force;
wherein,
a retainer for accommodating the rolling member, the weight member and the biasing spring, or a side plate for restricting axial movement of the rolling member, the weight member and the biasing spring is provided between the outer race and the inner race, and the retainer or the side plate is provided with an axial through hole.
4. The rotary working one-way clutch according to claim 1 or 3, wherein a recess for partially accommodating the weight member is provided on an outer peripheral surface of the inner race.
5. A rotary working one-way clutch according to one of claims 1 to 3, wherein the weight member is in contact with the inner race in a tangential direction.
6. The rotary working one-way clutch according to claim 1 or 3, wherein the cage is bent from a metal plate.
7. The rotationally operating one-way clutch according to claim 1 or 3, wherein the cage is provided with a rolling-member locking portion for restricting an operating range of the rolling member.
8. The rotationally operating one-way clutch according to claim 1 or 3, wherein the cage includes first and second plates having substantially annular portions, one or both of the plates being provided with a first cylindrical portion for connecting the biasing spring, a second cylindrical portion for forming the weight member, and an engaging projection.
9. The rotary working one-way clutch according to claim 8, wherein one of the first and second plates is provided with the first cylindrical portion, and the other is provided with the second cylindrical portion, and both of the first and second plates are provided with the engaging protrusion.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003035032 | 2003-02-13 | ||
| JP035032/2003 | 2003-02-13 | ||
| JP101480/2003 | 2003-04-04 | ||
| JP2003101480 | 2003-04-04 | ||
| JP2003344610A JP4372507B2 (en) | 2003-02-13 | 2003-10-02 | Rotation actuated one-way clutch |
| JP344610/2003 | 2003-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1521419A CN1521419A (en) | 2004-08-18 |
| CN1287102C true CN1287102C (en) | 2006-11-29 |
Family
ID=33479602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100049230A Expired - Fee Related CN1287102C (en) | 2003-02-13 | 2004-02-13 | Rotation activated one-way clutch |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP4372507B2 (en) |
| KR (1) | KR100531565B1 (en) |
| CN (1) | CN1287102C (en) |
| BR (1) | BRPI0400170A (en) |
| MX (1) | MXPA04001311A (en) |
| TW (1) | TWI279498B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4694158B2 (en) | 2004-06-30 | 2011-06-08 | Ｎｓｋワーナー株式会社 | Rotation actuated one-way clutch |
| JP5195269B2 (en) * | 2007-10-23 | 2013-05-08 | 日本精工株式会社 | One-way clutch and manufacturing method thereof |
| JP5160269B2 (en) * | 2008-03-06 | 2013-03-13 | Ｎｓｋワーナー株式会社 | Roller type one-way clutch |
| CN101666362B (en) * | 2008-09-03 | 2013-03-20 | 陈伯恒 | Centrifugal mechanically controlled clutch |
| JP5133191B2 (en) * | 2008-10-03 | 2013-01-30 | Ｎｓｋワーナー株式会社 | Roller type one-way clutch |
| CZ303906B6 (en) * | 2009-05-27 | 2013-06-19 | Ostaz S.R.O. | One-way centrifugal clutch |
| CN103511505A (en) * | 2012-06-25 | 2014-01-15 | 陈伯恒 | Centrifugal clutch |
| WO2014122857A1 (en) * | 2013-02-06 | 2014-08-14 | 本田技研工業株式会社 | Internal combustion engine |
| JP6249861B2 (en) * | 2014-03-31 | 2017-12-20 | 本田技研工業株式会社 | One way clutch |
| JP2017110723A (en) * | 2015-12-16 | 2017-06-22 | 株式会社ジェイテクト | One-way clutch |
| CN106015389B (en) * | 2016-07-13 | 2018-07-06 | 无锡市第二轴承有限公司 | One-way clutch bearing |
| WO2018199757A2 (en) * | 2017-04-27 | 2018-11-01 | Advancing Technologies B.V. | Clutch system for a torque transmission |
| CN110762136B (en) * | 2019-09-16 | 2020-11-27 | 洛阳轴承研究所有限公司 | Centrifugal overrunning clutch |
-
2003
- 2003-10-02 JP JP2003344610A patent/JP4372507B2/en not_active Expired - Fee Related
-
2004
- 2004-02-10 TW TW093103068A patent/TWI279498B/en not_active IP Right Cessation
- 2004-02-11 MX MXPA04001311A patent/MXPA04001311A/en unknown
- 2004-02-11 BR BR0400170-2A patent/BRPI0400170A/en not_active Application Discontinuation
- 2004-02-12 KR KR10-2004-0009229A patent/KR100531565B1/en not_active IP Right Cessation
- 2004-02-13 CN CNB2004100049230A patent/CN1287102C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1521419A (en) | 2004-08-18 |
| MXPA04001311A (en) | 2005-09-21 |
| JP2004316886A (en) | 2004-11-11 |
| BRPI0400170A (en) | 2004-12-28 |
| TWI279498B (en) | 2007-04-21 |
| KR100531565B1 (en) | 2005-11-29 |
| TW200506238A (en) | 2005-02-16 |
| KR20040073375A (en) | 2004-08-19 |
| JP4372507B2 (en) | 2009-11-25 |
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