JP2003097673A - Assembling method for roller clutch built-in type pulley device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost by making assembling work possible even if an object which has a simple shape and does not have particularly high accuracy on a shape and a dimension is used as a holder 34 for a clutch. SOLUTION: As the holder 34 for the clutch, the object which permits rollers 26, 26 inserted into pockets 35, 35 to slip out in the diameter direction is used. When the rollers 26, 26 are inserted into each pocket 35, 35, a jig 37 is used for the insertion. And, while the respective rollers 26, 26 are pivotally supported by the jig 37, an inner ring for the clutch and an outer ring for the clutch are assembled on the inner diameter side and the outer diameter side of the respective rollers 26, 26 and the holder 34 for the clutch. The purpose is achieved by such a constitution.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention
Driven to the end of the rotating shaft of an alternator as an electric machine
Pulley or end of crankshaft of automobile engine
Engine pulley used as a drive pulley
Method of pulley device with built-in roller clutch for machine drive
Regarding improvement. 2. Description of the Related Art An automobile driving engine is used as a driving source.
The alternator structure that generates the necessary power for the car
Is described in, for example, JP-A-7-139550.
I have. FIG. 7 shows an alternator 1 described in this publication.
Is shown. A rotating shaft 3 is provided inside the housing 2 and a pair of
It is rotatably supported by rolling bearings 4 and 4. This
A rotor 5 and a commutator 6 are provided at an intermediate portion of the rotary shaft 3.
ing. Also, at one end (right end in FIG. 7) of this rotating shaft 3
A driven pulley 7 is provided at a portion protruding outside the housing 2.
Is fixed. When assembled to the engine,
An endless belt is wound around the driven pulley 7, and the
The rotary shaft 3 is rotatably driven by the link shaft.
You. Conventionally, as the driven pulley 7, generally,
The one that is simply fixed to the rotating shaft 3 is used
Was. On the other hand, in recent years, the running speed of the endless belt has become
Or the upward trend, use the endless belt to
Power transmission to endless belts at low speed
If there is a downward trend, the relative rotation between the driven pulley and the rotating shaft
A pulley device with a built-in one-way clutch that allows free rotation
Seeds have been proposed and used in some. For example, JP
JP-A-213207, JP-A-10-285873
Bulletin, JP-A-11-22753, JP-A-11-63026
Gazette, JP-A-2000-240687, etc.
One-way clutch built-in pulley device with various functions
It is listed. Also, as a one-way clutch,
The use of a switch, as described in the above publications, etc.,
Conventionally known. FIGS. 8 to 13 are described in these publications.
Roller clutch built-in type
1 shows a tool assembly. This roller clutch built-in type
The re-mounting device is attached to the rotating shaft 3 of the alternator 1 (see FIG. 7).
The shaft member (rotation) described in the claims that is freely fitted and fixed.
(A shaft member). Also this sleeve
8 around the pulley member described in the claims.
Driven pulley 7a is arranged concentrically with the sleeve 8
I have. The outer peripheral surface of the sleeve 8 and the driven pulley
A pair of ball bearings 9, 9 and a roller
A clutch 10 is provided. The sleeve 8 is formed in a substantially cylindrical shape as a whole.
And is externally fitted to the end of the rotating shaft 3 of the alternator 1.
It is fixed and rotatable with the rotating shaft 3. For this
In the example shown in FIG.
A hole 11 is formed, and the screw hole 11 is
The external thread provided on the outer peripheral surface of the tip can be screwed freely.
You. Also, the tip of the inner peripheral surface of the sleeve 8 (the left end in FIG. 8)
Part), a locking hole part 12 having a hexagonal cross section is formed.
The tip of a tool such as a hexagon wrench is inserted into the locking hole 12.
Can be locked freely. Further, the inner peripheral surface of the sleeve 8
The base end (the right end in FIG. 8) is located at the middle of the end of the rotating shaft 3.
Circular hole 13 that can be fitted without looseness
You. The sleeve 8 and the rotating shaft 3 do not rotate relative to each other.
The combination structure is spline engagement, non-circular fit
In this case, another structure such as key engagement may be employed. Also,
The central part of the outer peripheral surface of the sleeve 8 is larger in diameter than the other parts.
The large-diameter portion 14 has a large diameter. [0006] On the other hand, the front half of the outer peripheral surface of the driven pulley 7a
Is a poly-V belt with a cross-sectional shape extending in the width direction as a waveform.
Part of the endless belt called
You. The outer peripheral surface of the sleeve 8 and the driven pulley
7a at the axially intermediate portion of the space existing between
The roller clutch 10 is also connected to both ends of this space in the axial direction.
The roller clutch 10 is sandwiched at both sides in the axial direction
The ball bearings 9 and 9 are arranged at positions. [0007] Of these, the ball bearings 9, 9 are provided with the driven pulley.
Supports radial and axial loads applied to the rib 7a
And the relative position between the driven pulley 7a and the sleeve 8
Allows free rotation. Each of the ball bearings 9 and 9 is
Outer ring 1 having deep groove type outer ring raceways 15 on its inner peripheral surface
6, 16 and a deep groove type inner raceway 1 on each outer peripheral surface.
Inner races 18, 18, 7, 17 and the outer raceway 1
A plurality between each of 5, 15 and the inner raceway 17, 17
Balls 19, 19 provided so as to be able to roll freely. Soshi
Then, the outer rings 16, 16 are moved to both ends of the driven pulley 7a.
The inner races 18 and 18 are attached to the inner peripheral surface of the sleeve 8
Each is fitted and fixed to the outer peripheral surface near the both ends. or,
In this state, one side in the axial direction of each of the inner rings 18, 18 is
Each of the large diameter portions 14 comes into contact with both end surfaces (step surfaces) in the axial direction.
I have. Also, the inner peripheral surfaces of both ends of each of the outer rings 16
Between the outer peripheral surfaces of both ends of each of the inner rings 18, 18;
Each of the above-mentioned balls is provided by providing
Both ends of the space in which 19 and 19 are installed are closed. The roller clutch 10 is driven by the driven
The pulley 7a rotates relative to the sleeve 8 in a predetermined direction.
Only when it tends to rotate, these driven pulleys 7a
Transmission of the rotational force between the sleeve 8 and the sleeve 8 is allowed. this
In order to construct such a roller clutch 10, the sleeve 8
The clutch inner ring 21 is tightly fitted to the large diameter portion 14 of FIG.
The outside is fixed. This clutch inner ring 21 is made of carburized
Applying plastic working such as pressing to steel plate such as steel
It is formed in a cylindrical shape, and the cam surface 22 is formed on the outer peripheral surface.
You. That is, on the outer peripheral surface of the clutch inner race 21, FIG.
As shown in FIG. 11, a plurality of concave portions 23 called a lamp portion,
23 are formed at equal intervals in the circumferential direction,
The outer peripheral surface is the cam surface 22. The example shown
Then, one end of the inner peripheral surface of the clutch inner race 21 (FIG. 8)
Is formed at the left end of the cone).
The chamfer 24 is connected to the inner ring 21 for the clutch,
4 is used as a guide surface for press-fitting to the outer peripheral surface. On the other hand, the inner circumference of the driven pulley 7a
Outside for clutch fixed inside fit by interference fit in the middle part of the surface
Of the inner peripheral surface of the wheel 25, at least a roller 26 described below
The intermediate portion in the axial direction that abuts on is a simple cylindrical surface.
Such an outer ring 25 for a clutch is also made of a steel plate such as carburized steel.
Plastic processing such as pressing to form the whole into a cylindrical shape
At both ends in the axial direction.
The flange portions 27a and 27b are formed. In addition, the above both flange portions 2
7a, 27b, one (left side in FIG. 8) flange 27a
Are formed in advance at the time of manufacturing the clutch outer race 25.
To the same thickness as the cylindrical part of the outer ring 25 for clutch.
are doing. On the other hand, the other (rightward in FIG. 8) flange 2
7b is a diametrically inner side of the outer race 25 for the clutch.
Incorporating the roller 26 and the clutch retainer 28
To make it thinner. The clutch inner race 21 and the clutch
The roller clutch 10 together with the outer ring 25 for
The plurality of rollers 26 are connected to the inner ring 21 for the clutch.
Rotation of the inner ring 21 of the clutch
To the rolling and circumferential direction of the clutch retainer 28.
It is supported to be slightly displaceable. Hold for this clutch
The container 28 is made of a synthetic resin (for example, polyamide 66,
For synthetic resins such as MID 46 and polyphenylene sulfide
20% glass fiber mixed in)
It is formed in a cylindrical shape, and a part of it is shown in FIG.
A pair of rim portions 29, 29 each having an annular shape
And a plurality of pillars connecting these two rim portions 29, 29 to each other
Parts 30, 30. The inner surface of each of the rims 29, 29
And four circumferences surrounded by the circumferential side surfaces of the pillars 30, 30.
Rolled and circled each roller 26
Pockets to hold a little displaceable in the circumferential direction
31 and 31. Then, each of the rim portions 29, 2
9, the engagement protrusions 32, 32 formed at a plurality of locations on the inner peripheral surface,
As shown in FIG. 11, on the outer peripheral surface of the clutch inner ring 21,
By engaging the recesses 23, 23 formed,
The latch retainer 28 is attached to the clutch inner race 21.
With the relative rotation to the clutch inner ring 21 disabled
I have. In addition, among the openings of the pockets 31, 31,
The circumferential direction of the inner diameter side opening of the clutch retainer 28
Width W ₃₁ Is described in JP-A-2000-240687.
As described, as shown in FIG.
26 diameter D ₂₆ Smaller than (W ₃₁ <D ₂₆ )are doing.
Therefore, each of these rollers 26 passes through the above-mentioned inner diameter side opening.
These rollers 26 cannot be used for the clutch protection.
It does not fall off inward in the radial direction of the retainer 28a. Further, such a clutch retainer 28 is constituted.
Each of the circumferential side surfaces of the pillar portions 30 and 30 is
As shown in FIG. 12, a spring 33 is mounted. Each of these pillars
The spring 33 provided for each part 30,
The roller 26 held in the inside of the cam surface 2
2 outer peripheral surface and the inner peripheral surface of the intermediate portion of the clutch outer race 25
(Cylindrical surface) of the size of the substantially cylindrical gap formed between
Of the above,
In the same direction with respect to the circumferential direction of the
(Rightward = clockwise). In addition, shown
In the example, the spring 33 is made of a spring steel plate.
It uses a leaf spring that is bent in the shape of a letter.
It is also possible to use a synthetic resin spring integrated with the
Wear. Also, the shaft of the clutch retainer 28 as described above is used.
Both end faces in the direction are both flanges forming the outer race 25 for clutch.
This club is positioned close to the inner surfaces of the portions 27a and 27b.
Latch 28 is prevented from being displaced in the axial direction.
You. However, to suppress the axial displacement of the clutch cage
In addition to this, the structure of the shaft
A plurality of steps formed on the peripheral surface and a part of the clutch retainer
Are disclosed in, for example, JP-A-11-22753.
Gazette, JP-A-2001-165201, etc.
Has been known for some time. A roller clutch built-in type configured as described above.
When the pulley device is used, the driven pulley 7a and the three
When the head 8 tends to rotate relative to the predetermined direction,
In addition, the driven pulley 7a is attached to the sleeve 8 by the spring 33.
Are pressing the rollers 26 (rightward in FIG. 11).
== clockwise)
Each roller 26 has a width in the diameter direction of the substantially cylindrical gap.
Cut into narrow areas. Then, the driven pulley 7a and the upper
The relative rotation with the sleeve 8 becomes impossible (locked state).
You. On the other hand, the driven pulley 7a and the sleeve 8
In the direction opposite to the predetermined direction,
7a, the spring 33 presses each of the rollers 26.
In the opposite direction (leftward in FIG. 11 = counterclockwise).
When the rollers 26 tend to rotate,
The straightness of the substantially cylindrical gap is opposed to the elasticity of each spring 33.
It is retracted to a wide portion in the radial direction, and is driven by the driven pulley 7a.
Free relative rotation with the sleeve 8 (overrun state)
It becomes. In the roller clutch having the above-described structure.
The reason for using the storage type pulley device for the alternator is as follows.
There are two types. First, the first reason is the life of the endless belt.
It is to extend. For example, if the drive engine is
It was a diesel engine or a direct-injection gasoline engine
When the engine is running at low speeds such as idling,
Fluctuation in the rotational angular velocity of the shaft increases. As a result,
The running speed of the endless belt stretched over the driving pulley is also fine.
Will fluctuate. On the other hand, the endless belt
Rotating shaft 3 of the alternator that is rotationally driven through the tool
Is the rotating shaft 3 and the rotor fixed to the rotating shaft 3
And does not fluctuate so rapidly. Subordinate
Therefore, when the driven pulley is simply fixed to the rotating shaft
Due to fluctuations in the rotational angular velocity of the crankshaft,
The endless belt and the driven pulley tend to rub in both directions.
Become. As a result, the endless belt rubbing against this driven pulley
The endless base is repeatedly subjected to stresses in different directions.
Slip between the tilt and the driven pulley is likely to occur,
Otherwise, the life of the endless belt may be shortened.
You. Therefore, as such a driven pulley,
By using a roller clutch built-in pulley device,
The running speed of the endless belt is constant or increasing.
When the rotational force from the driven pulley to the rotating shaft 3 is
Transmission is free, and the running speed of the endless belt is low.
When there is a downward tendency, these driven pulleys and the rotating shaft 3
Can rotate freely. That is, the running of the endless belt
If the speed is decreasing, the rotation of the driven pulley
Make the angular velocity slower than the rotational angular velocity of the rotating shaft,
Make sure that the contact between the endless belt and the driven pulley
To prevent. In this way, the driven pulley and the endless belt
The direction of the stress acting on the rubbing part is kept constant.
Sliding may occur between the belt and the driven pulley, or
The life of the endless belt is prevented from being shortened. The second reason is that the power generation efficiency of the alternator is reduced.
It is to improve. Alternator rotor fixed
The rotating shaft 3 is an endless bell
And driven to rotate via the driven pulley. Fixed follower
When using pulleys, the rotation speed of the driving engine
If the speed drops sharply, the rotation speed of the rotor
And the amount of power generated by the alternator decreases sharply.
I do. On the other hand, the driven pump attached to the alternator
Use the pulley device with built-in roller clutch
If used, the rotational speed of the drive engine will drop sharply
In this case, the rotation speed of the rotor
It decreases gradually and continues to generate electricity during that time. As a result,
In comparison with the case of using a driven pulley of the formula,
Using the kinetic energy of the rotor effectively, the alternator
Power generation can be increased. Note that the above description
When the built-in latch type pulley device is installed on the driven pulley side
Roller cracks with a similar configuration
The built-in pulley device is connected to the drive side crankshaft.
The same operation and effect can be obtained by installing the device at the end. [0018] The conventional structure described above
In the circumferential direction of the opening on the inner diameter side of each pocket 31, 31.
Width W ₃₁ Is the diameter D of each roller 26 ₂₆ Smaller than
These rollers 26 are arranged in the radial direction of the clutch retainer 28a.
It prevents falling off inside. Because of this, this crack
The shape of the retainer becomes complicated, and the shape and dimensional accuracy are required.
Therefore, it is inevitable that the cost increases. The present invention
In consideration of these circumstances, a clutch protection with a simple shape is
Pulley unit with built-in roller clutch
It was invented to realize an assembly method that enables
You. The object of the assembling method of the present invention is as follows.
Pulley device with built-in roller clutch
It is for an auxiliary belt transmission, and includes a pulley member,
A shaft member arranged on the inner diameter side of the pulley member,
Provided between one axial direction of the rear member and one axial direction of the shaft member
The first ball bearing and the other axial direction of the pulley member
A second ball shaft provided between the shaft member and the other in the axial direction.
And a row provided between the pulley member and the shaft member.
It is provided with a la clutch. The first ball of these
The bearing is located on the inner peripheral portion of the pulley member and has a
An outer diameter portion having one outer raceway and an outer peripheral portion of the shaft member
An inner diameter portion having a first inner raceway on an outer peripheral surface;
Provided between the first inner raceway and the first outer raceway.
And a plurality of first balls. Also, above
The second ball bearing is provided separately from the pulley member.
The second outer ring raceway is fitted on the inner peripheral surface of the
And an outer ring having
A shaft member unit with the shaft member of
An inner ring having an inner ring raceway, the second inner raceway and
A plurality of second balls provided between the second outer raceway
It is provided with. Also, the roller clutch is
Lock in one direction and unlock in the other direction
An outer diameter provided on an inner peripheral portion of the pulley member.
And an outer peripheral portion of the shaft member, and the outer peripheral surface has a cover.
Inner diameter part provided with a rubber part, the outer peripheral surface of this inner diameter part, and the outer diameter
A plurality of rollers provided between the inner peripheral surface of the
It is provided between the outer diameter part and the inner diameter part.
A clutch having a plurality of pockets holding each roller
And a roller engaged with the retainer and each of the rollers described above.
And a plurality of springs for pressing the spring. Also, above
Each pocket provided in the clutch retainer is
That allow the passage of the inner diameter side and the outer diameter side of the
It is. The roller clutch built-in press of the present invention
In the case of the assembly method of the
The pockets of this clutch retainer are attached to the inner and outer diameter sides of
To prevent the above rollers from coming out of the roller in the radial direction.
After placing the jigs, place
Insert a ruler. Next, each of these rollers and the above-mentioned
And the outer diameter and the inner diameter of the roller clutch.
Between the roller clutch and the roller clutch.
After the switch is assembled between the pulley member and the shaft member,
An inner peripheral surface of the pulley member and the shaft portion;
Assemble between the outer surface of the material. Regarding the first ball bearing
Between the inner peripheral portion of the pulley member and the outer peripheral portion of the shaft member.
It does not matter before and after the assembly work. Immediately
That is, the first ball bearing is a component of the roller clutch.
Prior to assembling the member between the two peripheral parts,
These peripheral portions may be assembled to each other. Or the above low
Assemble the components of the La Clutch between the above two peripheral parts
Before or after assembling the second ball bearing
May be assembled between the two peripheral portions. The above roller
The inner and outer diameters of the clutch should be
After inserting into each pocket of the latch retainer,
Remove the roller and clutch retainer from the above jig.
Beforehand, the inside of the roller and the cage for the clutch
Part of each is inserted or fitted on the outer diameter side. Soshi
Thus, the entire inner diameter portion and outer diameter portion of the roller clutch,
Inner diameter side and outer diameter side of each roller and clutch cage
The jig is inserted into each of these
Roller and clutch retainer. The roller clutch according to the present invention, constructed as described above,
According to the method of assembling the built-in pulley device, a simple shape
Pulley with built-in roller clutch using latch retainer
The device can be assembled. That is, clutch
Rollers can be adjusted from multiple pockets provided in the cage
This clutch retainer is
Each roller is attached to each pocket of the
The retainer for the
A structure for preventing the roller from slipping out becomes unnecessary. This
Therefore, simplifying the structure of the clutch retainer
In addition, the required accuracy for shape and dimensions can be reduced.
Cost can be reduced. 1 and 2 show an embodiment of the present invention.
1 shows a first example. The features of the present invention are necessary.
The structure of the clutch retainer 34 is simplified while maintaining
The shape of the clutch retainer 34 and the
Built-in roller clutch with low required accuracy for dimensions
Cage retainer to reduce the cost of die pulley device
34 and the clutch cage 3
4. Install rollers 26, 26 in pockets 35, 35
The point is that the method has been improved. In addition, inside the roller clutch
Regarding the basic structure and operation of the storage pulley,
Since it is the same as the case of the conventional structure shown in FIGS.
Overlapping illustrations and explanations are omitted, and the features of the present invention will be described below.
The description focuses on the parts. Each of the clutch holders 34
The pockets 35, 35 are the inner diameters of the rollers 26, 26.
To the outside diameter and to the outside diameter side.
That is, the clutch retainer 34 used in the embodiment of the present invention
Each of the pockets 35, 35 has a circular shape in both the inner diameter side opening and the outer diameter side opening.
The width in the circumferential direction is larger than the diameter of each of the rollers 26, 26.
Is also big. Therefore, the circumferential direction of each of the pockets 35, 35
The pillars 36, 36 that partition the two sides of the roller 2
Locks spring 33 (see Fig. 12) for pressing 6, 26
Any shape can be used as long as it can be formed. In other words, each of the pillars 3
The shapes and dimensions of the rollers 6 and 36 are the same as those of the rollers 26 and 26.
There is no restriction in terms of restricting passage. The pocket of the clutch holder 34 as described above
To incorporate the rollers 26, 26 into the
Is one end in the axial direction of the clutch retainer 34 (see FIG. 1).
Loosely insert the lower end) into the annular recess 38 provided in the jig 37.
Enter. This jig 37 has elasticity like synthetic resin.
It is made of a material, and it is
Place the outer cylindrical wall 40 slightly closer to the center than the outer peripheral edge.
The inner diameter side cylindrical walls 41 are formed concentrically with each other. this
Of the outer peripheral surface of the inner cylindrical wall 41 and the outer cylindrical wall 40,
The distance d from the peripheral surface is in the radial direction of the clutch retainer 34.
The thickness of each roller 26
Diameter D of ₂₆ Or slightly larger than this (d ≧ D
₂₆ ≫T). Also, the outer and inner diameter side cylindrical walls 40, 41
Is the axial length L of the clutch retainer 34.
Smaller than that of the clutch retainer 34,
Is sufficiently larger than the axial thickness t of the rubber portion 47 (L≫H
≫t). The annular recess 38 is defined by the inner cylindrical wall 41.
Outer peripheral surface, the inner peripheral surface of the outer diameter side cylindrical wall 40, and the
This is a portion surrounded on three sides by the upper surface of the plate portion 39. Each pocket 3 of the clutch retainer 34
To insert the rollers 26, 26 into 5, 35,
First, one end of the clutch retainer 34 in the axial direction (lower end)
Part) is inserted into the annular recess 38. In this state,
Inner diameter and outer diameter of one axial end of the clutch retainer 34 of FIG.
And the outer and inner diameter side cylindrical walls 40 and 41, respectively.
This is arranged. These two cylindrical walls 40 and 41 are
Each of the above pockets 35, 35 of the latch retainer 34
When the rollers 26, 26 are inserted, these rollers
26, 26 are arranged radially from inside the pockets 35, 35.
Prevent escape. So, from this state,
Insert the rollers 26, 26 into the pockets 35, 35, respectively.
Enter. The insertion work is performed at one end of each of the rollers 26, 26.
Part (lower end) is obliquely above the above pockets 35, 35
Into a portion located in the annular recess 38
From the rollers 26, 26 to the clutch retainer.
This is done by making it parallel to. In this way, the clutch retainer 34
Insert the rollers 26, 26 into the pockets 35, 35, respectively.
When the rollers are inserted, the rollers 26
Insert the latch inner ring 21 (see FIG. 8) and
The outer ring 25 for the clutch (see FIG. 8) is externally fitted to the outer diameter side.
You. Insertion work of these clutch inner races 21 and clutch
The outer fitting work of the outer race 25 is performed by lifting the rollers 26 and 26 described above.
Inserted into the pockets 35 of the clutch retainer 34.
After entering, the rollers 26, 26 and the clutch
Pull out one end of the holder 34 from the annular recess 38 of the jig 37.
Before you start. That is, these rollers 26, 26
And one end of the clutch holder 34 with the annular recess 38
Each of these rollers 26, 26
And a clutch retainer 34 on the inner diameter side of the remaining portion of the clutch retainer 34.
Insert the inner ring 21 and also on the outer diameter side for the clutch
The outer ring 25 is externally fitted. Next, these clutch inner rings 2
1 and the clutch outer race 25 as a whole,
26 and the clutch retainer 34
As the jig 37 is fitted on the outer diameter side,
Remove from each roller 26, 26 and clutch retainer 34
remove. The roller clutch assembled in this way is
The inner peripheral surface of the driven pulley 7a, which is a member, and the shaft member
Assembled between the outer peripheral surface of the sleeve 8 (see FIG. 8). Finally, the roller clutch 10 is sandwiched.
Of the pair of ball bearings 9 provided in the above, the second ball bearing
One of the ball bearings 9 is connected to the inner peripheral surface of the driven pulley 7a
Assembled between the outer peripheral surface of the sleeve 8. Like this
The operation of assembling the ball bearing 9 with the roller clutch 10
After the assembling work, the one ball bearing 9
This does not hinder the assembly work of the roller clutch 10.
It is in order to make it. Therefore, the other is the first ball bearing
Before and after assembling the ball bearing 9 (see Fig. 8).
I don't know. The roller clutch of the present invention implemented as described above
According to the method of assembling the pulley device with a built-in switch, the shape is simple
Built-in roller clutch using a simple clutch retainer 34
The assembly of the mold pulley can be made possible. That is, the jig 37
A plurality of pockets 3 provided in the clutch retainer 34
Each roller 26, 26 comes out from 5, 35 in the radial direction.
Each pocket of the clutch retainer 34 is
To assemble each roller 26, 26 into the
Therefore, each of the pockets described above is attached to the clutch retainer 34 itself.
The rollers 26, 26 come out of the rollers 35, 35
This eliminates the need for a structure for preventing the noise. Therefore,
Simplifies the shape of the retainer for
The required accuracy of the law can be reduced. Next, FIGS. 3 to 6 show second to fifth examples of the present invention.
As an embodiment, the pocket 3 of the clutch retainer 34 is used.
Used to insert rollers 26, 26 into 5, 35
4 shows four examples of different structures of the jig. First, shown in FIG.
In the case of the jig 37a of the second example, a pair of cylinders having different diameters
-Shaped elements 42a and 42b are placed on the upper surface of a work table (not shown).
In this state, these two cylindrical elements 42a and 42b
Insert one end (lower end) of the clutch retainer 34
It is a thing. Provided in this clutch retainer 34
To insert rollers 26, 26 into pockets 35, 35
Method and the subsequent assembling method are the same as those of the first example described above.
Since they are the same as described above, duplicate description will be omitted. Next, the jig 37b of the third example shown in FIG.
In some cases, synthetic resin is made by injection molding
Thus, the outer cylindrical wall 40a and the inner cylindrical wall 41a are
Each of a plurality (three in the example shown) of arc-shaped portions
Combined. Inner peripheral surface and inner diameter of outer cylindrical wall 40a
The annular recess 38a between the outer cylindrical surface 41a and the outer peripheral surface of the
With one end of the
To insert each roller into the
The erecting method is the same as in the case of the first example described above.
A duplicate description is omitted. Next, the jig 37c of the fourth example shown in FIG.
In some cases, synthetic resin is made by injection molding
The outer peripheral surface and the outer periphery of the center pillar 43 arranged concentrically with each other
At regular intervals in the circumferential direction, opposing each other with the inner peripheral surface of the cylindrical portion 44
The protruding pieces 45a and 45b are radially
Has formed. The number of these protruding pieces 45a and 45b is
The same as the number of pockets provided in the clutch cage
is there. Using such a jig 37c, the clutch
When inserting each roller into each pocket provided in the holder
Is connected to one end of each of the projections 45
a and 45b are inserted between the leading edges. And each port
The opening at both ends of the inner and outer ends of the bracket is
With each of these pockets facing the leading edge,
Insert each roller. Therefore, each of these rollers
In the state inserted in each pocket, each of the protruding pieces 45a,
45b prevents these pockets from falling off.
You. Assembling method after inserting each roller in each pocket
Are the same as in the first example described above,
Description is omitted. Next, the jig 37d of the fifth example shown in FIG.
In some cases, synthetic resin is made by injection molding
And has a regular polygonal concave portion 46. Such a jig 37
Each pocket provided in the clutch retainer using d
When inserting each roller into the
With one end thereof loosely inserted into the concave portion 46,
Insert the rollers into the pockets. This crack
How to insert the roller into the pocket provided in the
The subsequent assembling method is the same as that of the first example described above.
Therefore, duplicate description will be omitted. The present invention is constructed and operated as described above.
The clutch performance while maintaining the required performance.
Simplifies the structure of the cage,
The required accuracy can be reduced, and a pulley device with a built-in roller clutch
Installation cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a jig used in a first example of an embodiment of the present invention. FIG. 2 is a plan view of the same. FIG. 3 is a longitudinal sectional view of a jig used in a second example of the embodiment of the present invention. FIG. 4 is a plan view of a jig used in the third example. FIG. 5 is a plan view of a jig used in the fourth example. FIG. 6 is a plan view of a jig used in the fifth example. FIG. 7 is a sectional view showing an example of a conventionally known alternator. FIG. 8 is a half sectional view showing an example of a roller clutch built-in type pulley device which is conventionally known and is an object of the assembling method of the present invention. FIG. 9 is a partial perspective view of an inner race for a clutch. FIG. 10 is a partial perspective view of a clutch retainer. FIG. 11 is a partial side view showing only the clutch inner race and the clutch retainer. FIG. 12 is a perspective view showing an example of a spring mounted on a clutch retainer. FIG. 13 shows one of drop-off preventing means for preventing a roller from coming out of a pocket of a clutch retainer inward in a radial direction.
FIG. 9 is a sectional view taken along the line AA of FIG. [Description of Signs] 1 alternator 2 housing 3 rotary shaft 4 rolling bearing 5 rotor 6 commutator 7, 7a driven pulley 8 sleeve (rotary shaft member) 9 ball bearing 10 roller clutch 11 screw hole 12 locking hole 13 circular hole Part 14 large diameter part 15 outer raceway 16 outer race 17 inner raceway 18 inner race 19 ball 20 seal ring 21 clutch inner race 22 cam surface 23 recess 24 chamfer 25 clutch outer race 26 rollers 27a, 27b flange 28 clutch retainer 29 rim 30 pillar portion 31 pocket 32 engaging protrusion 33 spring 34 clutch retainer 35 pocket 36 pillar portion 37, 37a, 37b, 37c, 37d jig 38, 38a annular concave portion 39 substrate portion 40, 40a outer diameter side cylindrical wall 41, 41a Inner diameter side cylindrical walls 42a, 42b Cylindrical element 43 Central pillar 44 Outer peripheral cylinder 45a, 45b Projection 46 recess 47 rim

Claims (1)

Claims 1. A pulley device with a built-in roller clutch is used for a belt transmission of an engine auxiliary machine, comprising: a pulley member; a shaft member disposed on the inner diameter side of the pulley member; A first ball bearing provided between one axial direction of the pulley member and one axial direction of the shaft member; and a first ball bearing provided between the other axial direction of the pulley member and the other axial direction of the shaft member. A second ball bearing, and a roller clutch provided between the pulley member and the shaft member. A. The first ball bearing is provided on an inner peripheral portion of the pulley member. An outer diameter portion having a first outer raceway on an inner peripheral surface; an inner diameter portion having an outer raceway and a first inner raceway on an outer peripheral surface of the shaft member; And a first ball provided between the outer raceway and one of the outer raceways, b. The second ball bearing is separate from the pulley member, is fitted on the inner peripheral surface of the pulley member, has an outer ring having a second outer raceway on the inner peripheral surface, and is separate from the shaft member. An inner ring fitted on the outer peripheral surface of the shaft member and having a second inner raceway on the outer peripheral surface; and a second ball provided between the second inner raceway and the second outer raceway. C. The roller clutch locks in one direction of rotation and unlocks in the other direction, and includes an outer diameter portion provided on an inner peripheral portion of the pulley member; An inner diameter portion provided on an outer peripheral portion of the member; a roller provided between an outer peripheral surface of the inner diameter portion and an inner peripheral surface of the outer diameter portion; and a roller provided between the outer diameter portion and the inner diameter portion. And a clutch retainer having a pocket holding the roller inside. D. The pockets provided in the retainer allow the roller to pass through the inner diameter side and the outer diameter side. E. The inner and outer diameter sides of the clutch retainer After arranging a jig to prevent the roller from coming out of the cage pocket in the radial direction, inserting the roller into this pocket, f. Connect the roller and the clutch cage G. Assembling between an outer diameter portion and an inner diameter portion of a roller clutch; and g. Thereafter, assembling the second ball bearing between an inner peripheral surface of the pulley member and an outer peripheral surface of the shaft member. How to assemble the pulley device.