JPH06338372A - Cable reel - Google Patents

Abstract

PURPOSE:To provide a cable reel having a low occurrence rate of defectives by easily discriminating whether the inversion section of a flexible cable is correctly looped on a specific roller or not during the assembling process. CONSTITUTION:A flexible cable 3 is inversely wound in the ring-like space 16 formed between the outer tube section 6 of the first housing 1 and the inner tube section 15 of the second housing 2 via a U-shaped inversion section 3a, and a group of multiple rollers 22 including an inverting roller 22A on which the inversion section 3a is looped are pivotally supported on a rotary plate 21 rotatably arranged in the space 16. Ribs 24 are provided between the rollers 22 except for the portion where the inversion section 3a is located. When the inversion section 3a is looped on a roller other than the specific roller by mistake, the inversion section 3a is brought into contact with the rib 24, thus the attitude of the rotary plate 21 is tilted, and erroneous assembling can be judged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable reel incorporated in a steering device of an automobile and used as an electrical connecting means such as an air bag system.

[0002]

2. Description of the Related Art In a cable reel, a fixed body and a movable body rotatably mounted on the fixed body are connected by a belt-shaped flexible cable. It is used as an electrical connection means between a movable body and a fixed body, which have a finite number of rotations.

In this type of cable reel, the ratio of the flexible cable in the total cost is high, and the length of the required flexible cable is shortened to reduce the cost. Is actually Kaihei 4-87191
It is proposed in Japanese Patent Publication No.

FIG. 8 is a plan view showing a schematic structure of the cable reel described in the above publication. As shown in the figure,
A movable body 101 is rotatably attached to the center of a cylindrical fixed body 100.
A strip-shaped flexible cable 102 is housed in a ring-shaped space defined between the strip-shaped space 01 and the space 01. Both ends of the flexible cable 102 are led to the outside of the space while being fixed to the fixed body 100 and the movable body 101, respectively, and inside the space, the outer cylindrical portion of the fixed body 100 and the movable body 101 are guided. The U-shaped reversing portion 102a is formed at a position where the winding direction is changed, and is housed in the cylindrical portion in a state where the winding direction is opposite. Further, a ring-shaped rotary plate 103 is arranged in the space, and although not shown, the rotary plate 1
A planetary gear that meshes with gears formed on the peripheral walls of the fixed body 100 and the movable body 101 is axially supported on the lower surface of 03. On the other hand, a plurality of shafts 104 are erected on the upper surface of the rotating plate 103 at predetermined intervals in the circumferential direction.
A roller 105 is rotatably fitted in the roller 4, and the reversing portion 102a of the flexible cable 102 is provided in each roller 10
It is looped to one of five groups.

In the cable reel thus constructed, for example, when the movable body 101 rotates clockwise in FIG. 8, the inverting portion 102a of the flexible cable 102 moves to the movable body 1.
When the flexible cable 102 is moved in the clockwise direction by a rotation amount smaller than 01, the wound state of the flexible cable 102 is the unwound state in which the inner cylinder side of the fixed body 100 is increased. At that time, since the planetary gear (not shown) revolves in the space by the rotation of the movable body 101, the rotating plate 103 moves clockwise at the same speed as the reversing portion 102a, and the flexible cable 102 is pulled by the roller 105. It moves smoothly in the space without being disturbed. On the contrary, when the movable body 101 rotates counterclockwise in FIG. 8, the inverting portion 102a of the flexible cable 102 is rotated.
Moves in the same direction by a smaller amount of rotation than the movable body 101, and the flexible cable 102 is in a tightly wound state in which the flexible cable 102 is wound around the inner cylinder side of the movable body 101. Also in this case,
The rotating plate 103 moves in the same direction at the same speed as the reversing portion 102a, and the flexible cable 102 moves smoothly in the space without being pulled by the roller 105.

[0006]

According to the above-mentioned conventional cable reel, since the winding direction of the flexible cable is opposite to that of the inner tubular portion and the outer tubular portion, the flexible cable is Compared to a cable reel wound in the same direction on the tube and outer tube (wound in a spiral), the required length of the flexible cable can be significantly shortened, and the cost can be reduced. Can be realized. In addition, since a plurality of rollers are arranged between the portion of the flexible cable wound around the inner tube portion and the portion of the flexible cable wound around the outer tube portion, the flexible cable is provided over the entire circumference of the ring-shaped space. Therefore, it is possible to regulate the diameter in the radial direction, and the tightening or rewinding operation can be smoothly performed.

However, since each roller is pivotally supported on the same plane of the rotary plate and the U-shaped reversal portion of the flexible cable can be looped to any roller in the assembly process, the direction toward the rotary plate is improved. If there is a problem, there is a problem in that the rotation plate is incorporated into the reversing portion at an incorrect angular position, and the defect occurrence rate increases. For example, when the cable reel is installed in the steering device, the movable body must be able to rotate about the center position of the steering wheel in both the forward and reverse directions to the same extent. However, there has been proposed a method in which an indicator for alignment is provided on the rotary plate and the indicator is visually observed from the outside to perform the alignment. In this case, if the U-shaped reversing portion is looped to a roller other than the specific roller, the indicator and the U-shaped reversing portion are assembled in a positionally displaced state, so that the movable body should be accurately aligned. Can not be. Such erroneous assembly of the rotary plate is not limited to the case where the rotary plate is provided with an indicator for alignment, but also occurs when it is necessary to loop the U-shaped reversal portion to a specific roller.

The present invention has been made in view of the above-mentioned circumstances of the prior art, and an object of the present invention is to provide a group of rollers axially supported by a rotating plate with respect to a U-shaped reversing portion of a flexible cable. It is to provide a cable reel which can easily discriminate that it has been installed in a correct position and has excellent assembling workability.

[0009]

In order to achieve the above object, the present invention has a fixed body having a first tubular portion and a second tubular portion rotatably mounted on the fixed body. Movable body,
A strip-shaped flexible cable housed in a space defined between the first and second cylindrical portions, a ring-shaped rotary plate rotatably arranged in the space, and A plate is provided with a plurality of rollers pivotally supported at a predetermined interval, and the flexible cable is inverted to one of the rollers in a U shape so that the first tubular portion and the second tubular portion In a cable reel in which the flexible cable is wound in the opposite direction to the tubular portion, and both ends of the flexible cable are fixed to the fixed body and the movable body and are electrically led to the outside, each roller of the rotary plate. A rib narrower than the diameter of the roller is provided on the locus in which the group is arranged, except for the portion where the U-shaped reversal portion of the flexible cable is located.

[0010]

When the movable body is rotated in either the forward or reverse direction, the flexible cable U looped to a specific roller of the rotating plate is rotated.
The character-shaped reversing part moves in the same direction by a smaller amount of rotation than the movable body, and the rotating plate also moves following the reversing part due to the force from the reversing part, and the flexible cable moves to the first tubular part. It is in a rewound state in which it is rewound or in a state in which it is fastened to the second tubular portion. Here, when the reversing part of the flexible cable is looped to a roller other than a specific roller of the rotating plate,
Since the widthwise end of the flexible cable contacts the rib of the rotary plate, the rotary plate can be incorporated in the space between the first tubular portion of the fixed body and the second tubular portion of the movable body. Therefore, it is possible to easily determine whether or not the reversing unit is correctly looped to the specific roller of the rotary plate.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a longitudinal sectional view of a cable reel according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the cable reel, and FIG.
FIG. 4 is a perspective view of a moving body provided on the cable reel as viewed from the back side, and FIG. 4 is an exploded perspective view of a main part of the moving body. As shown in these figures, the cable reel according to the present embodiment includes a first housing 1 and a first housing 1.
A second housing 2 rotatably attached to the
Flexible cable 3 housed between the housings 1 and 2
And a moving body 4 rotatably arranged between the housings 1 and 2.

The first housing 1 is composed of a lower case 7 in which an outer cylinder portion 6 is erected on the outer peripheral edge of a bottom plate 5, and an upper cover 8 joined and integrated with the upper end of the outer cylinder portion 6. There is. Center holes 9 and 10 are provided at the centers of the bottom plate 5 and the upper cover 8 of the lower case 7, and a ring-shaped guide groove 11 is provided on the lower surface of the upper cover 8. A window hole 12 through which the inside can be seen is provided on the track of the groove 11.

The second housing 2 has a shaft insertion hole 13 at its center.
The upper and lower ends of the outer peripheral edge are guided by the center holes 9 and 10 of the lower case 7 and the upper cover 8 to be rotatably connected to the first housing 1. There is. The top of the second housing 2 has a first
Mark 14 is formed, and the window hole 12 and the first mark 14 face (match) each time the second housing 2 makes one rotation with respect to the first housing 1. There is. A space 16 having a ring shape in a plan view is provided between the bottom plate 5 on the first housing 1 side, the outer cylinder portion 6 and the upper cover 8 and the inner cylinder portion 15 forming the outer peripheral surface on the second housing 2 side. Well defined.

The flexible cable 3 is composed of a strip-shaped flat cable in which conductors parallel to each other are laminated with a pair of insulating films. In the case of the present embodiment, a flat cable for five circuits in which five conductors are embedded is used. Cable is used. One end of the flexible cable 3 has the outer cylindrical portion 6
It is connected to a first connector 17 fixed to and is led to the outside of the first housing 1 via the first connector 17. On the other hand, the other end of the flexible cable 3 is connected to a second connector 18 fixed to the inner tubular portion 15, and is led out of the second housing 2 via the second connector 18. . The flexible cable 3 is wound around the inner wall of the outer tubular portion 6 in the clockwise direction from the first connector 17 and is inverted in a U-shape from there (hereinafter, this is referred to as the inversion portion 3a.
Further, the space 1 is wound around the outer wall of the inner cylindrical portion 15 in the counterclockwise direction to reach the second connector 18.
It is stored in 6.

The movable body 4 has a plurality of pins 19 and 1 on its lower surface.
A ring-shaped rotary plate 21 in which two fixed cylinders 20 are suspended,
A pair of rollers 22 is rotatably supported on each pin 19, and a second mark 23 for an indicator is formed on the top surface of the rotary plate 21. As shown in FIGS. 3 and 4, a rib 24 extending in the circumferential direction is vertically provided at the center of the lower surface of the rotary plate 21, and the rib 24 includes a fixed cylinder 20 and a pin 19 facing the fixed cylinder 20. It is continuous except the space. Of the pins 19, the fixed cylinder 20
A long roller 22 (hereinafter, this roller is referred to as a reversing roller and is denoted by reference numeral 22A) is snapped in to the pin 19 facing the pin 19, and the remaining pin 19 protruding from the rib 24 is shorter than the reversing roller 22A. All rollers 22 including the reversing roller 22A and the lower surface of the fixed cylinder 20 are set to be substantially flush with each other. The moving body 4 configured as described above is arranged in the space 16 and is guided rotatably in the radial direction of the space 16 by fitting the rotating plate 21 with the guide groove 11, as described above. Inversion part 3a of flexible cable 3
Passes between the fixed cylinder 20 and the reversing roller 22A and is looped to the reversing roller 22A.

In assembling the cable reel thus constructed, first, the first and second connectors 17 and 18 are provided at both ends of the flexible cable 3 cut into a predetermined length.
To connect the second connector 18 to the second housing 2
It is fixed to the inner side of the inner tubular portion 15 of the. Next, as shown in FIG. 2, the second housing 2 and the flexible cable 3 are connected to the lower case 7 with a part of the flexible cable 3 inverted in a U shape.
It is assembled inside and the first connector 17 is fixed to the inside of the outer tubular portion 6. On the other hand, all the rollers 22 including the reversing roller 22A are snapped into the respective pins 19 of the rotary plate 21 and are axially supported, and the moving body 4 is turned upside down from that of FIG. 3 and the second housing 2 and the lower case 7 are turned upside down. Incorporate between and. At this time, the reversing portion 3 a of the flexible cable 3 is moved to the reversing roller 22 of the moving body 4.
When correctly inserted between A and the fixed cylinder 20, the rotary plate 2
1 is stored horizontally in the lower case 7. On the other hand, if the reversing portion 3a is mistakenly inserted into a portion other than the reversing roller 22A and the fixed cylinder 20, the upper end in the width direction of the reversing portion 3a is the rib 2.
4, the rotary plate 21 is brought into contact with the lower surface of
It will be in a state in which it greatly protrudes from and tilts. Therefore, the assembling operator can confirm that the reversing portion 3a of the flexible cable 3 is the moving body 4
Whether or not the reversing roller 22A is correctly looped can be easily determined from the tilted state of the rotary plate 21.
Then, if the moving body 4 is correctly assembled between the second housing 2 and the lower case 7, finally, the outer cover 6 of the lower case 7 is covered with the upper cover 8, and both are heat-sealed or screwed together. The assembly of the cable reel is completed by the integration using the appropriate means.

Next, the operation of the cable reel according to the above embodiment will be described by taking the case where the first housing 1 is used as a fixed body and the second housing 2 is used as a movable body as an example. In this case, the first housing 1 is fixed to the steering column side of the steering device, and the lead wires led out from the lower case 7 are connected to an air bag drive circuit, a horn circuit, etc. mounted on the vehicle body side. . Further, the second housing 2 is connected to a steering shaft, a steering wheel, etc., and lead wires led out from the second housing 2 are connected to an inflator for an airbag, a horn switch, etc. mounted on the steering wheel side. .

In use, when the handle is rotated clockwise or counterclockwise, the rotating force is applied to the second housing 2.
And the second housing 2 rotates clockwise or counterclockwise. For example, from the neutral position of the handle to the second
When the housing 2 is rotated clockwise, the reversing portion 3a of the flexible cable 3 is moved clockwise by a smaller amount than the second housing 2, and the reversing portion 3a is separated from the reversing roller 22A and is a fixed cylinder. In order to press 20, the rotary plate 21 also moves in the clockwise direction following the reversing portion 3a, and the flexible cable 3 having a length about twice the movement amount of the rotating plate 21 is inserted into the inner tubular portion 1
It is paid out from the 5 side and is rewound to the outer cylinder part 6 side. In this case, the flexible cable 3 that bulges radially from the inner tubular portion 15
Although the counterclockwise rotation force from the and the counterclockwise rotation force from the reversing portion 3a act on the fixed barrel 20, the fixed barrel 20 is fixed to the rotating plate 21. , Does not rotate like the group of rollers 22. Therefore, the rotational force that cancels the extension of the reversing portion 3a does not act on the fixed cylinder 20, and the flexible cable 3 wound around the inner cylinder portion 15 contacts the group of rollers 22 and rotates them counterclockwise. By being rotated in the same direction, it is smoothly drawn out in the direction of the reversing portion 3a, and is rewound to the side of the outer tubular portion 6 via the reversing portion 3a.

Contrary to the above, when the second housing 2 rotates counterclockwise from the neutral state of the handle, the reversing portion 3a of the flexible cable 3 rotates counterclockwise by a smaller rotation amount than the second housing 2. Since the reversing roller 22A is pulled by the reversing section 3a, the rotating plate 21 also moves in the counterclockwise direction following the reversing section 3a, and the flexibility of the length about twice the moving amount is set. The cable 3 is unwound from the outer tubular portion 6 and wound around the inner tubular portion 13. In this case, the reversing unit 3
Since a is separated from the fixed cylinder 20 and is fed toward the inner cylinder portion 15 while contacting the reversing roller 22A, the reversing roller 2
2A rotates in the clockwise direction, and the flexible cable 3 wound around the outer tubular portion 6 contacts the group of rollers 22 and rotates them in the clockwise direction to smoothly rotate the inversion portion 3.
It is paid out in the a direction, passed through the reversing portion 3a, and wound around the inner tubular portion 15 side.

When the cable reel constructed as described above is installed in the steering device, it is necessary to install the second housing 2 in the neutral position of the steering wheel so that the second housing 2 can rotate in both the forward and reverse directions to the same extent. Then, a positioning mechanism for that purpose is attached. That is,
When the flexible cable 3 is wound around the outer tubular portion 6 of the first housing 1 and the inner tubular portion 15 of the second housing 2 in substantially the same amount in the neutral state, the flexible cable 3 is formed on the rotary plate 21. The second mark 23 is directly below the window hole 12 of the upper cover 8, and the first mark 14 and the window hole 12 formed on the second housing 2 are at the opposite positions. Two
By visually observing 3, it can be visually detected that the second housing 2 is in the rotation neutral position. However, when the second housing 2 is displaced in the clockwise or counterclockwise direction with respect to the neutral position of rotation, the rotating plate 21 and the fixed body that rotate by following the reversing portion 3a of the flexible cable 3 may be used. Since the relative position with respect to the certain first housing 1 changes, the second mark 23 cannot be seen through the window hole 12, and it is visually detected that the second housing 2 is not in the rotation neutral position. it can. Further, when the rotary plate 21 rotates forward or reverse one revolution or more with respect to the neutral position, the window hole 12 and the second mark 23 will coincide even at positions other than the neutral position, but the rotary plate 21 and the second housing will be the same. Since the rotation amounts of 2 are different, the window hole 12, the first mark 14 and the second mark
The second housing 2 can be recognized as being in the rotational neutral position only when all of the marks 23 in FIG.

In the cable reel according to the above-mentioned embodiment, the flexible cable 3 is inserted into the outer tubular portion 6 via the reversing portion 3a.
The length of the flexible cable 3 required can be shortened because it is wound in the opposite direction to the inner cylindrical portion 15 and, as a result, the total cost can be reduced and the size can be reduced. . Further, the moving body 4 is arranged between the portion of the flexible cable 3 wound around the outer tubular portion 6 and the portion of the flexible cable 3 wound around the inner tubular portion 15, and the moving body 4 includes the reversing roller 22A. Since the plurality of rollers 22 are rotatably supported, it is possible to prevent the flexible cable 3 from bulging and buckling in the radial direction on the way to the reversing portion 3a during the rewinding operation of the flexible cable 3.
This can be prevented by the group, and the tightening operation can be reliably performed. Further, since the reversing portion 3a of the flexible cable 3 is looped to one of the rollers 22 (reversing roller 22A), and the fixed cylinder 20 is provided at a position facing the reversing roller 22B via the reversing portion 3a, During the rewinding operation, the reversing unit 3
There is no hindrance to the feeding of a, and the rewinding operation can be reliably performed from this point as well. In addition, the moving body 4
A second mark 23 for an indicator is formed on a rotating plate 21 provided in the first housing 1 and the second housing 2 by visually observing the second mark 23 through the window hole 12 of the upper cover 8. Since it is possible to visually perform the alignment between and, the alignment mechanism can be simplified, which is advantageous for downsizing the cable reel. Further, the rotating plate 2 other than the portion through which the reversing portion 3a of the flexible cable 3 passes
Since the ribs 24 are provided on the first unit, it is possible to easily determine whether or not the reversing unit 3a is correctly looped to the specific reversing roller 22A during the assembling process. If the relative position between the reversing portion 3a and the second mark 23 is deviated and the alignment between the first housing 1 and the second housing 2 is misaligned, or the reversing portion 3a is positioned between the rollers 22 that rotate together. And inversion unit 3
It is possible to prevent problems such as hindering the feeding operation of a. Moreover, since the rib 24 is continuous at the upper end position of each roller 22 and the rib 24 and the roller 22 overlap each other in the width direction of the flexible cable 3, the reversing portion 3 a is provided between the rib 24 and the roller 22. There is no clearance for erroneous insertion, and the effect of preventing erroneous assembly of the rotary plate 21 is further ensured.

In the above embodiment, the rotary plate 21 is set to the first
Although the case where the upper cover 8 of the housing 1 is guided has been described, conversely, the rotary plate 21 may be guided to the bottom plate 5 of the first housing 1. Further, as means for axially supporting the group of rollers 22 including the reversing roller 22A on the rotary plate 21, the rollers 22 are attached to the pins 19 provided on the rotary plate 21.
An example of rotatably snap-in is shown in Fig. 5.
As shown in, the pin provided on the roller 22 may be inserted into the shaft hole of the rotary plate 21.

FIG. 6 is a plan view of an essential part of a cable reel according to another embodiment of the present invention, and FIG. 7 is a sectional view taken along the line AA of FIG. 6, showing a portion corresponding to FIGS. Are given the same reference numerals.

This embodiment is different from the above-mentioned embodiment in that
Instead of providing the continuous ribs 24 on the rotary plate 21, the discontinuous first ribs 25 and second ribs 26 are provided, and the rest of the configuration is basically the same. The first rib 25 is a portion except between the reversing roller 22A and the fixed cylinder 20, that is, between the reversing roller 22A and the roller 22 adjacent thereto, between the fixed cylinder 20 and the roller 22 adjacent thereto,
And provided between the rollers 22 other than that,
Each roller 22 group including the reversing roller 22A and the first rib 2
A clearance for smooth rotation of the roller 22 is formed between the roller 5 and the roller 5. On the other hand, the second rib 2
6 are provided near both ends of each first rib 25, and these second ribs 26 are provided for each roller 22 and the first rib 25.
And it functions as an auxiliary rib that substantially reduces the clearance required between and. Further, as shown in FIG. 7, protrusions 26 a directed toward the pin 19 are formed at the base of the second rib 26, and these protrusions 26 a and each roller 22 form a rotary shaft of the second housing 2. Directions overlap each other.

During the assembling of the cable reel thus constructed, the reversing portion 3a of the flexible cable 3 is moved to the moving body 4
When properly inserted between the reversing roller 22A and the fixed barrel 20, the rotary plate 21 is horizontally housed in the lower case 7. On the other hand, when the reversing unit 3a is mistakenly inserted into a portion other than the reversing roller 22A and the fixed cylinder 20, the reversing unit 3a
Comes into contact with the ends of the first or second ribs 25 and 26, and if the reversing portion 3a is provided with the roller 22 and the first and second ribs 2.
Even if it is inserted by mistake in the clearance between the reversing parts 5 and 26, the reversing part 3a comes into contact with the projecting part 26a of the second rib 26, and in any case, the rotating plate 21 becomes the outer cylinder part 6 of the lower case 7.
It will be in a state in which it greatly protrudes from and tilts. Therefore, the assembling operator can confirm that the reversing portion 3a of the flexible cable 3 is the moving body 4
Whether or not the reversing roller 22A is correctly looped can be easily determined from the tilted state of the rotary plate 21.

[0026]

As described above, according to the present invention,
Since it is possible to easily determine whether or not the reversal portion of the flexible cable is correctly looped to a specific roller during the assembly process, it is possible to provide a cable reel with a low defect occurrence rate.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a cable reel according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same embodiment.

FIG. 3 is a perspective view of a moving body included in the cable reel of FIG. 1 viewed from a back surface side.

FIG. 4 is an exploded perspective view of a main part of the moving body.

FIG. 5 is an exploded perspective view showing a modified example of a roller shaft supporting means.

FIG. 6 is a plan view of a main part of a cable reel according to another embodiment of the present invention.

7 is a sectional view taken along the line AA of FIG.

FIG. 8 is a plan view of a cable reel according to a conventional example.

[Explanation of symbols]

 1 1st housing 2 2nd housing 3 Flexible cable 3a Inversion part 4 Moving body 5 Bottom plate 6 Outer cylinder part 7 Lower case 8 Upper cover 9,10 Center hole 12 Window hole 14 First mark 15 Inner cylinder part 16 Space 19 Pin 20 Fixed Cylinder 21 Rotating Plate 22 Roller 22A Reversing Roller 23 Second Mark 24 Rib 25 First Rib 26 Second Rib 26a Projection

Claims (4)

[Claims] 1. A fixed body having a first tubular portion, a movable body having a second tubular portion rotatably mounted on the fixed body,
A strip-shaped flexible cable housed in a space defined between the first and second cylindrical portions, a ring-shaped rotary plate rotatably arranged in the space, and A plate is provided with a plurality of rollers pivotally supported at a predetermined interval, and the flexible cable is inverted to one of the rollers in a U shape so that the first tubular portion and the second tubular portion In a cable reel in which the flexible cable is wound in the opposite direction to the tubular portion, and both ends of the flexible cable are fixed to the fixed body and the movable body and are electrically led to the outside, each roller of the rotary plate. A cable reel, wherein a rib narrower than the diameter of the roller is provided on the locus where the groups are arranged, except for the portion where the U-shaped reversal portion of the flexible cable is located. 2. The structure according to claim 1, wherein at least the roller other than the roller in which the U-shaped reversal portion is looped and the rib overlap each other in the rotation axis direction of the movable body. Cable reel. 3. The cylindrical body according to claim 1 or 2, wherein a cylindrical body facing the roller in which the U-shaped reversal portion is looped is fixed to the rotary plate, and the roller is formed between the roller and the cylindrical body. A cable reel in which a U-shaped reversal portion is located. 4. The cable reel according to claim 1, wherein the rotary plate is provided with an indicator that indicates a rotation neutral position of the movable body.