JP2001020969A - Unidirectional flexible joint mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve heat radiation from a housing unit storing a clutch spring on a unidirectional flexible joint mechanism. SOLUTION: Heat radiation from a housing unit 112 is improved by providing a plural number of projected cooling fins 188 on an outer surface of the housing unit 112 storing a clutch spring 182, and heat radiation from the housing unit 112 is improved by providing a rolling bearing 174 to be provided between a first clutch member 144 and a second clutch member 146 constituting the housing unit 112 on the inside of the clutch spring 182 by providing the clutch spring 182 on an outer periphery rather than the rolling bearing 174.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a flexible coupling provided between an output shaft of a motor or the like and an input shaft of a driven device, more specifically, a one-way clutch provided between a motor driving shaft and a driven device. A flexible joint mechanism.

[0002]

2. Description of the Related Art The applicant of the present invention is disclosed in Japanese Patent Application Laid-Open No. H11-2181.
No. 51 has already proposed such an integrated flexible joint mechanism.

The structure of this conventional integrated flexible joint mechanism 10 is as shown in FIGS. 1 to 4, and is connected between a first rotary connecting member 14 and a second rotary connecting member 16 so as to be relatively rotatable. A housing unit 12 having a first clutch member 44 and a second clutch member 46 is provided.

When the first rotary connecting member 14 rotates in the first direction with respect to the second clutch member 46 of the housing unit 12, the first clutch member 44 of the housing unit 12 The second rotation clutch member 46 of the first rotation connection member 14 and the second rotation clutch member 46 of the second rotation
When torque is transmitted between the rotary connecting member 16 and the first rotary connecting member 14 rotates relative to the second clutch member 46 of the housing unit 12 in a second direction opposite to the first direction, A one-way clutch means is provided for disengaging the first clutch member 44 of the housing unit 12 and the second clutch member 46 of the housing unit 12 and allowing relative rotation between the first rotary connecting member 14 and the second rotary connecting member 16. ing.

[0005] Between the first clutch member 44 and the first rotary connecting member 14 of the housing unit 12, both are connected so as to be rotatable together, and between the first rotary connecting member 14 and the second rotary connecting member 16. The first connecting means is provided to absorb the relative positional deviation and the angular deviation.

Also, the second of the housing unit 12
Also between the clutch member 46 and the second rotation connecting member 16,
Both are rotatably connected to each other, and a second connecting means is provided for absorbing a relative displacement and an angular displacement between the first rotary connecting member 14 and the second rotary connecting member 16.

The one-way clutch means provided on the housing unit 12 includes a first clutch member 44 of the housing unit 12 and a second clutch member of the housing unit 12.
The cylindrical inner peripheral surface 5 formed by the clutch member 46
An inner space 80 having an inner space 8, 60, and a clutch spring 82 accommodated in the inner space 80 and having an outer diameter larger than the diameter of the cylindrical inner peripheral surfaces 58, 60 when receiving no load.
Consists of The clutch spring 82 frictionally engages with the cylindrical inner peripheral surfaces 58 and 60 by the pressing force of the radially outward spring, and the first clutch member 44 of the housing unit 12 is connected to the second clutch member of the housing unit 12. 4
6 in the first direction, the radially outward pressing force increases, and the first clutch member 44 of the housing unit 12 and the second clutch member 46 of the housing unit 12 rotate relative to each other. By connecting the first rotation connecting member 14 and the second rotation connecting member 16 in an impossible manner, the first clutch member 44 of the housing unit 12 is transmitted to the second clutch member 46 of the housing unit 12 by transmitting the torque between the first rotation connecting member 14 and the second rotation connecting member 16. On the other hand, the relative rotation in the second direction reduces the radially outward pressing force, thereby allowing the relative rotation of the first clutch member 44 of the housing unit 12 and the second clutch member 46 of the housing unit 12. , The second clutch member 46 of the housing unit 12
It is mounted in a direction that can rotate faster than the clutch member 44.

The first connecting means and the second connecting means absorb relative displacement and angular displacement between the first rotary connecting member 14 and the second rotary connecting member 16. The first connecting means and the second connecting means are respectively constituted as follows.

That is, the first connecting means is formed on the first rotary connecting member 14 and the plurality of teeth 70 extending toward the first rotary connecting member 14 formed on the first clutch member 44 of the housing unit 12. , The housing unit 1
The plurality of teeth 30 extending toward the first clutch member 44
And the plurality of teeth 70 of the first clutch member 44 and the first
A first elastic connecting member provided with a plurality of radially outwardly extending projections mounted between the plurality of teeth portions of the rotary connecting member;

The second connecting means is formed on the second rotating connecting member 16 and a plurality of teeth 71 extending toward the second rotating connecting member 16 formed on the second clutch member 46 of the housing unit 12. , The housing unit 1
2, a plurality of teeth 31 extending toward the second clutch member 46
And a plurality of radially outwardly extending projections 18 attached between the plurality of teeth 71 of the second clutch member 46 and the plurality of teeth 31 of the second rotary connection member 16. And an elastic connecting member 42.

[0011]

By the way, as described above, the housing unit 12 is provided with the first clutch member 44.
And a second clutch member 46.

The first clutch member 44 and the second clutch member 46 are substantially cylindrical members.
4 and the second clutch member 46 are formed with cylindrical inner peripheral surfaces 58 and 60 having substantially the same diameter.
Is fitted with a clutch spring 82. The first clutch member 44 is formed with an extension 62 extending in the axial direction along the outer peripheral surface 69 of the second clutch member 46, leaving a predetermined space with respect to the outer peripheral surface 69 of the second clutch member 46,
A rolling bearing 74 including an inner race 76, an outer race 78, and a rolling element 75 is press-fitted between the extension 62 and the outer peripheral surface 69 of the second clutch member 46.

The clutch spring 82 is provided with cylindrical inner peripheral surfaces 58, 6 of the first clutch member 44 and the second clutch member 46.
In order to transmit and release the rotational torque by increasing or decreasing the diameter of the clutch spring 82 by the frictional force of 0, the clutch spring 82, the first clutch member 44, the second clutch
Between the cylindrical inner peripheral surfaces 58 and 60 of the clutch member 46,
Generates frictional heat.

However, on the outer periphery of the outer peripheral surface 69 of the second clutch member 46 forming the internal space 80 accommodating the coil spring 82, the outer peripheral surface 6 of the second clutch member 46 is provided.
An extension 62 of the first clutch member 44 extending in the axial direction along 9 is formed, and between the extension 62 and the outer peripheral surface 69 of the second clutch member 46, the inner ring 76, the outer ring 78, and the rolling element 75 The rolling bearing 74 is press-fitted, and the rolling bearing 74 functions as a thermal insulator to prevent the dissipation of frictional heat.
There is a problem that it is difficult for the frictional heat generated in the inner portion to radiate to the outside.

An object of the present invention is to improve the heat radiation from a housing unit containing a coil spring.

[0016]

According to the present invention, in order to solve the above-mentioned problems, a plurality of cooling fins are provided on an outer surface of a housing unit accommodating a clutch spring to improve heat radiation from the housing unit. To Further, by providing a rolling bearing provided between the first clutch member and the second clutch member constituting the housing unit inside the clutch spring and the clutch spring on the outer periphery than the rolling bearing, heat radiation from the housing unit can be reduced. It was a good one.

[0017]

FIG. 5 and FIG. 6 show a housing unit 112 according to a preferred embodiment of the present invention.

The housing unit 112 includes a first clutch member 144 and a second clutch member 146.
Both the clutch member 144 and the second clutch member 146 are provided with a pair of axially extending portions. That is, the first clutch member 144 and the second clutch member 146 include outer cylindrical axial extensions 154, 155 having flat end surfaces 156, 157, respectively. The outer cylindrical axial extensions 154, 156 have substantially the same diameter and extend to the cylindrical inner peripheral surfaces 158, 160 extending to the open ends 148, 150.
Having.

Further, the first clutch member 144 and the second clutch member 146 each have a cylindrical inner peripheral surface 158,
Inner cylindrical axial extensions 162, 16 smaller in diameter than 160
4 is provided. The inner cylindrical axial extension 164 has a smaller diameter than the inner cylindrical axial extension 162, and a cylindrical space 172 formed therebetween has an inner ring 176 and an outer ring 1.
78, a rolling bearing 174 including a rolling element 175 is incorporated.

The first clutch member 144 and the second clutch member 146 are fitted with the rolling bearing 174 therebetween.
The second clutch member 146 includes the housing unit 11
A spring 166 holding a rolling bearing 174 and a retaining ring 168 are mounted in the inside 2.

With the first clutch member 144 and the second clutch member 146 fitted together, the outer cylindrical axial extension portions 154, 155 are coaxially arranged and are cylindrically shaped to accommodate a clutch spring 182 formed of a coil spring. Interior space 18
0 is formed. The cylindrical internal space 180 is outside the inner cylindrical space 172 with respect to the rotation center axis 181 of the first clutch member 144 and the second clutch member 146.
A cylindrical surface 18 having two cylindrical inner peripheral surfaces 158, 160
3 forms an outer cylindrical space 180. In the outer cylindrical internal space 180, a clutch spring 182 made of a coil spring having a diameter slightly larger than the cylindrical surface 183 is housed in a compressed state, that is, in a free state. Since the clutch spring 182 is compressed, the clutch spring 182 comes into sliding contact with both cylindrical inner peripheral surfaces 158 and 160 and applies a radially outward force to the cylindrical inner peripheral surfaces 158 and 160.
In addition to

The housing unit 112 generates heat by friction between the clutch spring 182 and the cylindrical surface 183 and the open ends 148 and 150. The clutch spring 182 is located near the outer peripheral surfaces 184 and 186 of the housing unit 112. Therefore, frictional heat is easily dissipated from the outer peripheral surfaces 184 and 186. In addition, since the clutch spring 182 is located outside the rolling bearing 174, the rolling bearing does not hinder the dissipation of frictional heat. Further, cooling fins 188 are formed on the outer peripheral surfaces 184 and 186, and the cooling fins 188 are formed on the outer peripheral surfaces 184 and 186.
To increase the surface area of the surface, and to more efficiently dissipate frictional heat.

Therefore, by using the housing 112 having such a structure for a one-way flexible joint, it is possible to withstand high-speed operation for a long time.

As shown in FIG. 6, the housing unit 1
12 outer cylindrical axial extensions 154, 155 and tab 1
Between the portions 92, a seal 190 is engaged. The seal 190 serves to prevent foreign matter from entering from outside and
2 prevents leakage of the lubricant. The material and shape of the seal are not limited. The material may be selected from natural rubber, synthetic elastomer, and other suitable materials.

Next, since the structure of the one-way flexible joint other than the housing unit 112 is common to the structure of the conventional one-way flexible joint, it will be described in detail with reference to FIGS.

The one-way flexible coupling 10 includes a first rotary connecting member, second rotary connecting members 14 and 16, a housing unit 12 (a housing unit 112 in the present invention) intermediate therebetween, the housing unit 12 and each 1
It comprises a connecting member made of an elastic material, that is, a spider 18, provided between the rotating connecting member and the second rotating connecting members 14 and 16. One end of the one-way flexible joint 10 is connected to a rotatable input member, that is, a driving member, and the other end is connected to a rotatable driven device. The driving member is a device capable of transmitting a rotational force to the one-way flexible joint 10 such as a motor or an internal combustion engine.

The first rotary connecting member 14 and the second rotary connecting member 16 are formed with holes 20 and 21 for inserting a rotation shaft along a center axis 22 of the outer end 23. The diameters of the holes 20 and 21 are slightly larger than the diameters of the drive shaft 24 of the drive motor (not shown) inserted into each of the holes 20 and 21 and the driven shaft 26 of the driven device (not shown). . The first rotary connecting member, the second rotary connecting members 14, 16 and the drive,
It goes without saying that some means for preventing relative rotation between the driven shafts 24 and 26 is provided. Such a relative rotation preventing means includes a key groove in which a key provided in the outer peripheral surface of the shaft and a key provided in the hole fit, a spline provided in the shaft and the hole, a set screw or a connecting pin, and a non-circular shape of the shaft and the hole. And the like.

First rotary connecting member, second rotary connecting member 1
At the end opposite to the end 23 of each of the four and fourteen, substantially flat connecting surfaces 28 and 29 are formed, and three tooth portions 3 are formed from each of the connecting surfaces.
0 and 31 project in the axial direction. The teeth 30, 31
The connecting surfaces 28 and 29 are arranged at equal intervals, and the
Extend radially inward, so that the outer arc surface 34 is wider than the inner arc surface 36, as shown in FIG. 4, and is generally wedge-shaped.

The two spiders 18 are made of an elastic material such as rubber or polyurethane, and have six protrusions 38 extending radially outward from a center portion 40. 6 projections
This is provided when the number of teeth 30 and 31 of each of the first and second rotary connecting members 14 and 16 is three.
When the number of the tooth portions 30 and 31 of each of the first and second rotary connecting members 14 and 16 is other than three, the number of the tooth portions of each of the first and second rotary connecting members 14 and 16 is set. Twice as many projections 38 are provided on each spider. Both end faces 42 of each spider 18 are substantially flat, and the distance between both end faces 42 is the distance between the first rotary connection member and the second rotary connection member 14, 16.
Are substantially equal to the axial lengths of the tooth portions 30, 31. Protrusion 3
8 are equal to each other, but if the shapes and arrangement intervals of the tooth portions of the first and second rotary connecting members 14 and 16 are different from each other, the protrusion 38 of the spider 18 will be described later accordingly. So that the widths are different from each other.

The housing unit 12 is a substantially cylindrical member and includes two parts, that is, a first clutch member 44 and a second clutch member 46. Each first clutch member 44
The second clutch member 46 has one end 48, 50 opened and the other end formed with connecting surfaces 52, 53. Flat portions 54 and 56 are formed at the open end portions 48 and 50, and each of the flat portions 54 and 56 has a cylindrical inner peripheral surface 5 having substantially the same diameter.
8, 60 are formed. A cylindrical extension 62 projects axially from a flat portion 54 of the first clutch member 44 along an outer peripheral surface 64 thereof. The extension 62 has a cylindrical inner peripheral surface 65 having a larger diameter than the cylindrical inner peripheral surface 58. On the other hand, a cylindrical concave portion 66 forming an intermediate cylindrical surface 69 is formed on the outer peripheral surface 68 of the second clutch member 46. The diameter of the intermediate cylindrical surface 69 is larger than the diameter of the cylindrical inner peripheral surface 60, and the diameter of the second cylindrical inner peripheral surface 65 of the first clutch member 44 is large.
A little smaller than the diameter of.

The connecting surfaces 52 and 53 of the first clutch member 44 and the second clutch member 46 are flat surfaces having substantially the same diameter, and a plurality of teeth 70 arranged at regular intervals on each surface.
71 are formed. The tooth portions 70 and 71 have the same length as the teeth 30 and 31 of the first clutch member 44 and the second clutch member 46. Further, regardless of whether the number of the teeth 30 and 31 is three or not, the same number of the teeth 70 and 71 as the teeth 30 and 31 are provided. Each tooth part 70, 71 is tooth part 3
It has a side surface 72 extending inward in the radial direction similarly to 0 and 31. Further, the shape and the arrangement interval of the tooth portions 70 and 71 may be changed according to the shape and the arrangement interval of the tooth portions 30 and 31.

The first clutch member 44 and the second clutch member 46 are press-fitted through a rolling bearing 74 including an inner ring 76, an outer ring 78, and a rolling element 75, and
Is formed. As shown in FIG. 2A, the rolling bearing 74
Fits into the recess 66 and is held by the axial extension 62. The first clutch member 44 and the second clutch member 46 are connected to each other only via the rolling bearing 74, and both are provided so as not to directly contact any portions including the flat surfaces 54 and 56. Since the first clutch member 44 and the second clutch member 46 are not in direct contact, they can relatively rotate via the rolling bearing 74. The illustrated rolling bearing 74 includes an inner race 76 fixed to the cylindrical surface 69 of the concave portion 66 of the second clutch member 46.
And an outer ring 78 fixed to the cylindrical inner peripheral surface of the cylindrical extension 62 extending in the axial direction, and a plurality of balls 75 interposed between the inner ring 76 and the outer ring 78. Although not shown, the rolling bearing 74 is permanently sealed so that lubrication is not required until the end of its life.

When the first clutch member 44 and the second clutch member 46 are pushed into each other, as shown in FIG. 2B, the cylindrical inner peripheral surfaces 58 and 60 having the same diameter are coaxially arranged, and the cylindrical inner peripheral surface 5 is formed.
8 and 60 become one cylindrical surface 83, and this cylindrical surface 83
Then, the cylindrical inner space 80 is formed by the end walls 84 and 85 on the first clutch member 44 side and the second clutch member 46 side. The clutch spring 82 is housed in the internal space 80.

The clutch spring 82 is a coil spring having a larger diameter than the cylindrical surface 83 when not compressed. When inserted into the internal space 80, the clutch spring 82
8, 60 are frictionally engaged to press both sides radially outward. Although the cross-sectional shape of the clutch spring 82 shown in FIG. 2B is circular, a spring having a rectangular or elliptical shape or another cross-sectional shape as shown in FIG. 3 may be used.

The second clutch member 46 has a screw hole 86 penetrating through the connecting surface 53 and the end wall 85 and communicating with the internal space defined by the cylindrical inner peripheral surface 60.
The hole 86 has a function as an air vent for preventing the pressure of the internal space 80 from increasing when the two first clutch members 44 and the second clutch member 46 are press-fitted, and the joint 1
After assembling 0, it has a function as a replenishing hole for replenishing grease inside the internal space 80 as part of maintenance. A threaded plug 88 is screwed into the hole 86,
The internal space 80 is sealed, and a lubricant (not shown) for lubricating the clutch spring 82 is confined in the internal space 80. As a result, the lubricant does not leak to the outside and the lubricant is not contaminated by foreign substances entering from the outside, so that the life of the clutch device is extended.

When the first clutch member 44 and the second clutch member 46 are press-fitted, the connecting surfaces 52, 53 are located at both ends of the housing unit 12, and the teeth 70, 71 are provided.
Extend in a direction away from each other in the axial direction from each of the connection surfaces 52 and 53. Next, the tooth portions 70 and 71 of the first clutch member 44 and the second clutch member 46 are moved between the tooth portions 30 and 31 of the drive-side and driven-side first rotary connection members and the second rotary connection members 14 and 16. By inserting the housing unit 12, the housing unit 12 is connected to the first rotation connection member and the second rotation connection member 1.
4 and 16 are connected coaxially. Housing unit 12
When connecting the spider 18 to the first rotary connecting member 14 and the second rotary connecting member 16, the spider 18 is fitted so that the projection 38 fits between the adjacent teeth 30 and 70 and between 31 and 71. The housing unit 12 and the first rotary connecting member,
It is sandwiched between the rotary connecting members 14 and 16. For this reason, as shown in FIG. 3, the tooth portions 70, 71 of the first clutch member 44 and the second clutch member 46 in a state where the joint 10 is assembled.
Engages with the tooth portions 30, 31 of the first and second rotary connecting members 14, 16 via the projections 38 of the spider 18. As shown in FIG. 3, the outer surface 92 of the projection 38 is between adjacent teeth 30 and 70 and between 31 and 71, and the spider 18 is positioned between adjacent teeth 30 and 70,
And fit perfectly between 31 and 71 and the teeth 30, 3
1, 70, 71 are closely attached to the side surfaces 32, 72 without gaps. As described above, when one of the teeth of the first rotation connection member 14, the second rotation connection member 16 and one of the first clutch member 44, and the second clutch member 46 are not wedge-shaped or are not arranged at equal intervals. Adjust the shape of the other tooth and spider projections accordingly. Thus, irrespective of the shape and the arrangement interval of the teeth, the teeth of the first rotary connecting member 14 and the second rotary connecting member 16 are engaged with the teeth of the housing unit 12 via the spider projections. The drive shaft can be connected to the driven shaft via a housing unit.

The components are connected to one another via the flat connecting surfaces 28 and 52 and 29 and 53 and the flat surface 42 of the spider 18. The joint 10 has flexibility due to the elasticity of the spider 18 and the gap between the spider 18 and the teeth 30, 31, 70, 71.

Therefore, when torque is transmitted from the first rotary connecting member 14 on the driving side to the second rotary connecting member 16 on the driven side via the housing unit 12, even if the centers of the drive shaft and the driven shaft are misaligned. The misalignment can be absorbed by compressing or bending the joint 10. Two shafts 24,
By absorbing the misalignment of 26, it is possible to prevent an unbalanced load from being applied to the motor bearing (not shown). Also, since the teeth 30, 31, and 70, 71 are engaged, the axial distance between the connecting surfaces 28 and 52 and 29 and 53 changes, and the distance between the connecting surface and both surfaces of the spider 18 changes. Even if there is some gap in the joint, the function of the joint is not affected at all.

The first rotary connecting member 14 on the driving side is driven by a drive shaft 24 of a motor or an internal combustion engine, and is connected to the first clutch member 44 or the second clutch member 44 of the housing unit 12.
The clutch member 46 is driven by the first rotation connecting member 14. As described above, here, the first clutch member 44 is used.
Will be described only when the is connected to the first rotary connection member 14 on the drive side. In this case, the rotation of the drive shaft 24 is transmitted to the first clutch member 44. As a result, when the first clutch member 44 is accelerated in the driving direction with respect to the second clutch member 46, the torque is increased.
4 to the second clutch member 46, and further the driven shaft 2
6 to the driven device. Conversely the first
When the clutch member 44 is decelerated with respect to the second clutch member 46, the second clutch member 46 cannot be decelerated as rapidly as the first clutch member 44 due to inertia from the driven device. It runs idle with respect to the clutch member 44.

The transmission and cutoff of the torque are performed by the clutch spring 8 in the internal space 80 of the housing unit 12.
2 is performed. In order to transmit and cut off the torque, the clutch spring 82 is housed in the internal space 80 such that the “winding direction” matches the direction in which the torque is transmitted. Specifically, when the first clutch member 44 is accelerated with respect to the second clutch member 46, the clutch spring 82 is moved by the frictional force between the clutch spring 82 and the cylindrical inner peripheral surface 58 of the first clutch member 44. The winding is arranged to be twisted in the loosening direction. When the winding of the clutch spring 82 is loosened, if there is no cylindrical inner peripheral surface 58, 60,
The outer diameter of the clutch spring 82 should be large. For this reason, when the winding of the clutch spring 82 is loosened, the friction between the cylindrical inner peripheral surfaces 58 and 60 and the outer peripheral surface of the clutch spring 82 increases, the compressive force of the clutch spring 82 increases, and the first clutch member 44 and the The force for pushing the cylindrical inner peripheral surfaces 58 and 60 of the two-clutch member 46 outward in the radial direction increases. When the radial outward pressing force increases, the first clutch member 44 and the second clutch member 46 are locked via the clutch spring 82, and torque is transmitted from the drive shaft 24 to the driven shaft 26.
Is transmitted to In addition, the clutch spring 82 includes the cylindrical inner peripheral surfaces 58 of the first clutch member 44 and the second clutch member 46,
Since the housing unit 12 is engaged, the centrifugal force generated by the rotation of the housing unit 12 functions to further increase the radial outward pressing force of the clutch spring 82. Further, since the outer periphery of the clutch spring 82 and the cylindrical inner peripheral surfaces 58 and 60 are engaged with each other, the lubricant of the clutch spring 82 is held by the clutch spring 82 by the action of the centrifugal force, and is not easily separated from the clutch spring 82. The effect is also brought.

On the other hand, when the drive shaft 24 is decelerated, the second clutch member 46 starts to rotate faster than the first clutch member 44 due to the inertia acting on the driven shaft 26. For this reason, the clutch spring 82 is twisted in a direction in which the winding is tight,
The outer diameter is slightly reduced, the radially outward pressing force acting on the cylindrical inner peripheral surfaces 58 and 60 from the clutch spring 82 is reduced, and the cylindrical inner peripheral surfaces 58 and 60 are unlocked. 46 idles with respect to the first clutch member 44.

[0042]

As described above, according to the present invention, since the heat radiation from the housing unit containing the clutch spring can be improved, it is possible to obtain a one-way flexible joint that can withstand high-speed and long-time operation. .

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing the entire configuration of a one-way flexible joint.

FIG. 2A is a longitudinal sectional view of a housing unit portion of a one-way flexible joint, and FIG. 2B is an enlarged view of a portion shown in FIG.

FIG. 3 is a front view showing an assembled state of a housing unit portion of the one-way flexible coupling.

FIG. 4 is a longitudinal sectional view taken along line 4-4 in FIG. 3;

FIG. 5 is a cross-sectional view showing a preferred embodiment of the housing unit of the one-way flexible coupling according to the present invention.

6 is a detailed view of a portion Y in FIG.

[Explanation of symbols]

 112 Housing unit 144 First clutch member 146 Second clutch member 148, 150 Open end 154, 155 Outer cylindrical axial extension 156, 157 End 158, 160 Cylindrical inner peripheral 162, 164 Inner cylindrical axial Extension 172 Cylindrical space 174 Rolling bearing 175 Rolling element 176 Inner ring 178 Outer ring 180 Internal space 181 Rotation center shaft 182 Clutch spring 183 Cylindrical surface 184, 186 Outer peripheral surface 188 Cooling fin 190 Seal 192 Tab

Claims (9)

[Claims] 1. A housing unit having a first clutch member and a second clutch member rotatably connected between a first rotation connection member and a second rotation connection member is provided. When the one rotation connection member rotates in the first direction with respect to the second clutch member of the housing unit, the first clutch member of the housing unit and the second clutch member of the housing unit are coupled so as to rotate together. The first rotary connecting member and the second
A torque is transmitted between the rotation connection member and the first rotation connection member with respect to the second clutch member of the housing unit.
When rotating in the second direction opposite to the first direction, the first clutch member of the housing unit and the second clutch member of the housing unit are uncoupled, and the first clutch member of the housing unit and the second clutch member of the housing unit are disengaged. A one-way clutch means for permitting relative rotation of the first rotation connection member and the second rotation connection member between the first clutch member and the first rotation connection member of the housing unit; A first connecting means for absorbing a relative positional deviation and an angular deviation between the connecting members is provided, and both are rotatably connected between the second clutch member and the second rotary connecting member of the housing unit. And a second connecting means for absorbing a relative positional shift and an angular shift between the first rotary connecting member and the second rotary connecting member, wherein the one-way clutch means provided on the housing unit is a housing. An inner space having a cylindrical inner peripheral surface formed by a first clutch member of the unit and a second clutch member of the housing unit; and an outer diameter accommodated in the inner space and receiving no load, having an outer diameter within the cylindrical shape. A clutch spring having a diameter larger than the diameter of the circumferential surface, the clutch spring being frictionally engaged with the cylindrical inner circumferential surface by the pressing force of a radially outward spring, and the first clutch member of the housing unit is mounted on the housing. When the unit is relatively rotated in the first direction with respect to the second clutch member of the unit, the radially outward pressing force is increased, and the first clutch member of the housing unit and the second clutch member of the housing unit are relatively moved. By coupling so that the housing unit cannot rotate, torque is transmitted between the first rotation connection member and the second rotation connection member, and the housing unit is connected. When the first clutch member of Tsu bets are relatively rotated in the second direction relative to the second clutch member of the housing unit, the pressing force of the radially outward becomes small, the first of said housing unit
A one-way flexible coupling mechanism that allows relative rotation between a clutch member and a second clutch member of the housing unit and is mounted in a direction in which the second clutch member of the housing unit can rotate faster than the first clutch member of the housing unit; A plurality of protruding cooling fins for dissipating heat from the housing unit. 2. The one-way flexible coupling according to claim 1, wherein a plurality of projecting cooling fins are provided on an outer surface of the first clutch member of the housing unit to dissipate heat from the housing unit. mechanism. 3. The one-way flexible coupling mechanism according to claim 1, wherein a rolling bearing is fixed between a first clutch member of the housing unit and a second clutch member of the housing unit. 4. An internal space having a cylindrical inner peripheral surface formed by a first clutch member of the housing unit and a second clutch member of the housing unit is provided with a first clutch member of the housing unit and a second clutch member of the housing unit. 4. The one-way flexible coupling mechanism according to claim 3, wherein the one-way flexible coupling mechanism is provided outside a rolling bearing fixed between the two clutch members. 5. A first clutch member and a second clutch member rotatably connected between a first rotating member and a second rotating member.
A housing unit having a clutch member is provided. When the first rotation connecting member rotates in a first direction with respect to the second clutch member of the housing unit, the housing unit includes a first clutch member of the housing unit and a housing unit. By connecting the second clutch member in a co-rotating manner, the first rotational connection member and the second
A torque is transmitted between the rotation connection member and the first rotation connection member with respect to the second clutch member of the housing unit.
When rotating in the second direction opposite to the first direction, the coupling between the first clutch member of the housing unit and the second clutch member of the housing unit is released, and the rotation between the first rotation connection member and the second rotation connection member is performed. One-way clutch means for permitting relative rotation is provided. Between the first clutch member and the first rotation connection member of the housing unit, the two are rotatably connected together, and the first rotation connection member and the second rotation connection are provided. A first connecting means is provided for absorbing a relative positional deviation and an angular deviation between the members. The first connecting means is connected between the second clutch member and the second rotary connecting member of the housing unit so as to be rotatable together. A second connecting means for absorbing a relative positional shift and an angular shift between the first rotary connecting member and the second rotary connecting member; and the one-way clutch means provided on the housing unit includes a housing. An inner space having a cylindrical inner peripheral surface formed by the first clutch member of the knit and the second clutch member of the housing unit; and an outer diameter accommodated in the inner space and receiving no load, having an outer diameter within the cylindrical shape. A clutch spring having a diameter larger than the diameter of the circumferential surface, the clutch spring being frictionally engaged with the cylindrical inner circumferential surface by the pressing force of a radially outward spring, and the first clutch member of the housing unit is mounted on the housing. When the unit is relatively rotated in the first direction with respect to the second clutch member of the unit, the radially outward pressing force is increased, and the first clutch member of the housing unit and the second clutch member of the housing unit are relatively moved. By coupling so that the housing unit cannot rotate, torque is transmitted between the first rotation connection member and the second rotation connection member, and the housing unit is connected. When the first clutch member bets are relatively rotated in the second direction relative to the second clutch member of the housing unit, the pressing force of the radially outward becomes small, the first of said housing unit
A one-way flexible coupling mechanism that allows relative rotation between a clutch member and a second clutch member of the housing unit and is mounted in a direction in which the second clutch member of the housing unit can rotate faster than the first clutch member of the housing unit; A rolling bearing is fixed between the first clutch member and the second clutch member of the housing unit, and a cylindrical inner periphery formed by the first clutch member of the housing unit and the second clutch member of the housing unit. A one-way flex joint mechanism, wherein an internal space having a surface is provided outside a rolling bearing fixed between a first clutch member of the housing unit and a second clutch member of the housing unit. 6. A first clutch member and a first rotation connection member of the housing unit, both of which are rotatably connected to each other, and a relative rotation between the first rotation connection member and the second rotation connection member is provided. A first connecting means for absorbing a positional shift or an angular shift is formed on the first rotary connecting member, the plurality of teeth extending toward the first rotary connecting member formed on the first clutch member of the housing unit; A plurality of teeth extending toward the first clutch member of the housing unit; and a plurality of teeth extending radially outwardly mounted between the plurality of teeth of the first clutch member and the plurality of teeth of the first rotary connection member. A first elastic connecting member having a plurality of protrusions extending therefrom, between the second clutch member and the second rotating connecting member of the housing unit, both of which are rotatably connected to each other; 2nd rotating chain A second connecting means for absorbing a relative positional deviation and an angular deviation between the members, a plurality of teeth extending toward a second rotary connecting member formed on a second clutch member of the housing unit; A plurality of teeth formed on the rotation connection member and extending toward the second clutch member of the housing unit; and a plurality of teeth of the second clutch member and the plurality of teeth of the second rotation connection member. The one-way flexible coupling mechanism according to claim 5, further comprising a second elastic connecting member having a plurality of radially outwardly extending projections attached thereto. 7. The one-way flexible joint mechanism according to claim 5, wherein a plurality of projecting cooling fins are provided on the housing unit to dissipate heat from the housing unit. 8. The housing unit according to claim 5, wherein a plurality of projecting cooling fins are provided on an outer surface of the first clutch member of the housing unit to dissipate heat from the housing unit. The one-way flex joint mechanism according to the above. 9. The one-way flexible joint according to claim 5, wherein a rolling bearing is fixed between the first clutch member of the housing unit and the second clutch member of the housing unit. mechanism.