JPH08162240A - Cable reel device - Google Patents

Abstract

PURPOSE: To make rotation of a spacer for guiding a cable smooth. CONSTITUTION: A case 11 is constituted by assembling a rotor 12, a stator 14 and a ring 16. A flat cable 22 and a spacer 21 for guiding the flat cable 22 to prevent disordered winding are housed in a cable housing 17 of the case 11. An inner edge of an upper plate part 73 of the spacer 21 is slidingly and freely engaged with a spacer engaging piece 63 formed in the upper part of a shaft 51 of the rotor 21 so as to be capable of sliding and the spacer 21 is hung for supporting. The contact area of the spacer 21 to the case 11 is reduced. A bottom plate part 31 is formed in a plate shape, and the stator 14 is easily formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable reel device for connecting members that rotate relative to each other with a cable.

[0002]

2. Description of the Related Art Conventionally, a cable reel device described in, for example, Japanese Patent Laid-Open No. 5-13140 is known. This cable reel device is a so-called flat cable in which a plurality of core wires are arranged in parallel between an electric component provided on the vehicle body side of an automobile and an electric component provided on the steering wheel side that rotates in the forward and reverse directions. It is designed to be electrically connected.

The flat cable is housed inside a hollow ring-shaped case body fitted to the steering shaft. The case body is formed by rotatably combining a tubular frame body fixed to a member on the vehicle body side and a tubular shaft body provided inside the frame body and rotating with a steering wheel. It is configured.
The flat cable is housed in a space formed between the frame body and the shaft body with one end attached to the frame body and the other end attached to the shaft body. Further, a guide body for guiding the flat cable and preventing winding disorder is housed in this space. This guide body is configured in a substantially C-shape in plan view in which a plurality of rollers are connected by wire springs and an inversion insertion portion through which a flat cable is inserted is provided in a part of a ring, and is freely rotatable around a shaft body. It is arranged. Then, while the steering wheel is being rotated in one direction, the flat cable passes through the reversing insertion portion of the guide body and is drawn inside the guide body while reversing in a U shape, and is moved to the outer peripheral side of the shaft body. Wrapped around,
While the steering wheel is rotating in the opposite direction, the unwound flat cable is fed out to the outside of the guide body while reversing in a U shape through the inversion insertion portion of the guide body, and the inner peripheral side of the frame body It is designed to be wrapped around.

Therefore, compared with a so-called clock spring type cable reel device in which a flat cable is wound around a shaft body in one direction and the flat cable is rewound and tightened, the flat cable is flat. The length of the cable can be shortened.

However, in the cable reel device using such a guide body, the flat cable pushes the guide body, and frictional resistance is generated between the bottom plate portion of the case body and the guide body. Therefore, it is difficult to rotate the guide body smoothly, and the flat cable easily buckles.

In this respect, in the structure described in Japanese Patent Laid-Open No. 5-13140, concave grooves are formed in the bottom plate portion integrated with the frame body and the top plate portion integrated with the shaft body so as to face the guide body. The guide member is formed so as to reduce the frictional resistance generated between the case body and the guide member and to smoothly rotate the guide member.

Also, for example, a cable reel device described in Japanese Patent Laid-Open No. 5-207632 is known. In the structure described in Japanese Patent Laid-Open No. 5-207632, a groove is formed in the bottom plate portion that is integral with the frame so as to face the guide body, and a rib is projected from this groove so that the guide body forms the rib. The sliding contact reduces the frictional resistance generated between the case body and the guide body so that the guide body rotates smoothly.

[0008]

However, in the structures of the above-mentioned conventional publications, since it is necessary to form the concave groove in the bottom plate portion of the case body, the thickness of the case body becomes uneven,
There is a problem that the moldability of the case body deteriorates and the manufacturing cost increases. Also, if a groove is formed in the bottom of the case body, the flat cable may fall into this groove, or the flat cable may fit between the groove and the guide body, making it difficult to move the flat cable smoothly. There is a problem such as becoming.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cable reel device which operates smoothly and can reduce the manufacturing cost.

[0010]

According to a first aspect of the present invention, there is provided a cable reel device in which a substantially cylindrical frame portion is provided, and inside the frame portion is rotatable in forward and reverse directions relative to the frame portion. A case that has a shaft portion provided and a bottom portion that closes the bottom portion side between the frame portion and the shaft portion, and forms a cable storage portion surrounded by the frame portion, the shaft portion, and the bottom portion, and one end Part is connected to the frame part, the other end part is connected to the shaft part, and the cable is housed in the cable storage part, and is rotated around the shaft part of the cable storage part in the circumferential direction. A guide body that is freely hung and supported by the case and that has an insertion portion through which the cable is inserted and that guides the cable is provided.

According to another aspect of the cable reel device of the present invention,
In the cable reel device according to the first aspect of the present invention, a support portion that slidably locks and suspends and supports the inner peripheral portion of the guide body is provided on the upper portion of the shaft portion that constitutes the case.

The reel device for a cable according to claim 3 is
In the cable reel device according to the first aspect of the present invention, a support portion that slidably locks and supports the outer peripheral portion of the guide body is provided on the upper portion of the frame portion that constitutes the case.

The reel device for a cable according to claim 4 is
In the cable reel device according to any one of claims 1 to 3, at least one of the shaft portion and the frame portion is formed integrally with a cover that constitutes the steering wheel.

A cable reel device according to a fifth aspect of the present invention is
The cable reel device according to any one of claims 1 to 4, wherein an annular annular guide portion is provided on an upper surface of the guide body, and a guide body guide portion is slidably engaged with the annular guide portion in the case. Is provided.

[0015]

In the cable reel device according to the first aspect of the invention, the cable reel device is arranged between members that rotate in the forward and reverse directions, and the frame portion and the shaft portion are connected to each member. By doing so, these members are connected by the cable housed in the cable housing part between the frame part and the shaft part, and electric power or a signal is transmitted by this cable. Then, with the shaft portion rotated in one direction relative to the frame portion, the cable passes through the insertion portion of the guide body and U
It is drawn inside the guide body while reversing in a letter shape, and is wound around the outer peripheral side of the shaft portion. Also, with the shaft part rotated in the opposite direction, the cable is unwound from the shaft part, passed through the insertion part of the guide body and turned out to the outside of the guide body while reversing in a U shape, and the inner circumference of the frame part is Wrapped around. The guide is
Since it is suspended and supported by the case, the frictional resistance between the guide body and the bottom of the case is eliminated, and it is not necessary to form a groove or the like at the bottom of the cable housing, so that the formability is improved.

In the cable reel device of the second aspect, in addition to the operation of the first aspect, the inner peripheral portion of the guide body is slidably locked by the support portion provided on the upper portion of the shaft portion constituting the case. As compared with the configuration in which the bottom portion of the guide body is slidably contacted with the case, the distance at which the guide body and the case are slidably contacted with each other when the guide body is rotated with respect to the case becomes smaller and the case is suspended. The structure of is simplified.

According to the cable reel device of the third aspect, in addition to the action of the first aspect, the outer peripheral portion of the guide body is slidably locked by the support portion provided on the upper portion of the frame portion forming the case. Since it is suspended and supported, the structure of the case is simplified.

In the cable reel device according to the fourth aspect, in addition to the operation according to any one of the first to third aspects, at least one of the shaft portion and the frame portion is formed integrally with the cover constituting the steering wheel. The number of parts of the cable reel device and the number of assembly steps are reduced.

In the cable reel device according to a fifth aspect of the present invention, in addition to the operation according to any one of the first to fourth aspects, an annular guide portion having an annular shape is provided on the upper surface of the guide body.
Since the guide body guide portion slidably engaged with the annular guide portion is provided in the case, rattling in the radial direction of the guide body is suppressed, and the guide body rotates smoothly.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of a cable reel device of the present invention will be described below with reference to the drawings.

In FIG. 3, reference numeral 1 is a cable reel device (spiral cable), and this cable reel device 1 is a boss portion 3 of a steering wheel body 2 of an automobile.
Is fixed with a plurality of (four) screws 4 and is fitted to a fitting portion 6 integrally formed with a lower cover (body cover) 5 as a cover for covering the lower portion of the steering wheel body 2. There is.

The steering wheel body 2
Is attached to the upper end of the steering shaft (not shown), the cable reel device 1 is loosely fitted to the steering column provided outside the steering shaft, and the steering wheel body 2 and the so-called combination switch are connected. It is designed to be installed between them.

Further, in FIG. 1 to FIG. 3, reference numeral 11 denotes a case, and the case 11 is integrally formed of synthetic resin such as copolymer polyacetal.
4, and a ring 16 for assembling and the like are combined to form a substantially hollow ring shape having an open upper side. And
Inside the case 11, there is an annular cable storage unit 17
The spacer 21 as an annular guide body and the flat cable 22 as a cable are housed in the cable housing portion 17 to form the cable reel device 1.

The cable reel device 1 is
With the rotor 12 fixed to the steering wheel body 2 and the stator 14 fixed to the combination switch,
An internal flat cable 22 is provided on the vehicle body side together with electrical parts such as an airbag device provided on the steering wheel body 2, a horn switch, an operation switch of a constant speed traveling device (ASCD), and an operation switch of an audio device. Electrical components such as a battery, an airbag control unit, a horn device, a constant speed traveling device, and an audio device are electrically connected.

Further, the steering shaft is connected to a steering transmission device of an automobile, and depending on the gear ratio of the steering transmission device, for example, 2 rotations to 2.5 from the neutral position to the left and right respectively. Rotation can be performed as much as rotation, that is, a so-called lock-to-lock operation can be performed as many as 4 to 5 rotations at maximum.

The flat cable 22 is, for example,
Multiple conductors such as 2 to 9 are arranged in parallel and are integrally covered with an insulating film, etc.
Further, it is formed in a band shape having some elasticity. In addition, the flat cable 22 is connected at both ends to converters 23 formed of synthetic resin or the like, and at both ends of the cables 24 led out from the converters 23, unillustrated connectors are provided. It is connected.
Then, one of the connectors is connected to a connector (not shown) provided on the steering wheel body 2, and the other connector penetrates the combination switch and is connected to a connector on the vehicle body side.

Further, a bottom plate portion 31 as a disc-shaped bottom portion is formed in the stator 14, a fitting hole 32 is formed in the center of the bottom plate portion 31, and the outer periphery of the bottom plate portion 31 is formed. A frame portion 33 having a substantially cylindrical shape is erected from the above portion toward the upper side. The bottom plate portion 31 has a flat upper surface, and a ring fitting portion 35 located on the lower surface around the fitting hole 32.
Are formed. An outer peripheral side cable lead-out portion 36 is formed on one side of the frame 33. The cable lead-out portion 36 has an outer peripheral side cable lead-out portion that can hold the flat cable 22 in a vertical state and lead it out to the outside of the frame portion 33.
37 and a lower cable holding portion 39 having a pair of engaging claws 38 for engaging and holding the conversion portion 23 of the flat cable 22 are formed. An outer step 41 is formed at the upper end of the frame 33 except the part where the cable lead-out part 36 is formed, and the step 41 expands outward in a stepwise manner.

On the other hand, the ring 16 has a fitting hole 32 in the stator 14.
An annular stator fitting portion 43 that slidably fits into the stator is formed, and a cylindrical inner cylinder portion 44 is provided so as to project upward from the inside of the stator fitting portion 43. A flange portion 45, which slidably fits in the ring fitting portion 35 of the stator 14, is provided in an annular shape from the lower side portion of the joining portion 43 toward the outside. Furthermore, in the stator fitting portion 43,
A plurality of rotor engagement holes 46 are formed along the periphery of the inner cylinder portion 44.

Further, the rotor 12 has a substantially cylindrical shaft portion.
51 is formed, and 3 from the upper end of the shaft 51 to the outside.
Mounting pieces 52, 53, 53 are provided so as to project toward one side. Then, in the vicinity of the one mounting piece portion 52, the shaft portion 51 is formed with an inner peripheral side cable lead-out portion 55 which can hold the flat cable 22 vertically and can be led out to the inside of the shaft portion 51. . Further, the attachment piece portion 52 has an upper cable holding portion 56 for mounting the conversion portion 23 connected to the end portion of the flat cable 22.
The upper cable holding portion 56 is formed with
Is formed with a pair of engaging claws 57, 57 on both sides. Further, the mounting piece portion 52 is formed with a pair of screw stop portions 58, 58 on both sides into which the screw portion of the screw 4 is inserted or screwed. On the other hand, on the other two mounting piece portions 53, 53, a pair of screw stop portions 59 on both sides, which are located near the tip portion and through which the screw portion of the screw 4 is inserted or screwed, are formed. further,
An elastically deformable tongue-shaped spacer pressing piece 61 is provided so as to incline downward from each of the mounting piece portions 52, 53, 53.

Further, from a plurality of locations (three locations) on the outer peripheral surface near the upper end portion of the shaft portion 51 of the rotor 12, the spacer engaging pieces 63 serving as support portions serve as locking surfaces having inclined upper surfaces. Is projected. Further, from the inner peripheral surface of the lower end portion of the shaft portion 51, a plurality of ring engaging pieces 64 that engage with the rotor engaging holes 46 of the ring 16 are provided to protrude downward.

Further, the spacer 21 is a rotor as a whole.
It is formed in a substantially annular shape arranged between the shaft portion 51 of 12 and the frame portion 33 of the stator 14. And, in this spacer 21,
An inner plate portion 71 that faces the outer peripheral surface of the shaft portion 51 and an outer plate portion 72 that is concentric with the inner plate portion 71 and that faces the inner peripheral surface of the frame portion 33 are formed. An annular upper plate portion 73 is formed continuously with the upper end portion of the plate portion 71 and the upper end portion of the outer plate portion 72. Further, on the inner peripheral side of the inner plate portion 71 of the spacer 21, a plurality of inner protrusions 75 having a longitudinal direction in the circumferential direction are formed at predetermined intervals and sequentially changing the height position. On the outer peripheral side of the outer plate portion 72 of the spacer 21, a plurality of outer ridges 76 having a circumferential direction as a longitudinal direction are formed at predetermined intervals and sequentially changing height positions. And each ridge
Each of 75 and 76 has a rectangular cross section or a hemispherical cross section, and has a smooth surface.
It is designed to slide smoothly on. The ridges 75 and 76 may be continuously formed in a substantially annular shape along the circumferential direction.

Further, an insertion portion 77 is formed on one side of the spacer 21 so as to connect the inner peripheral side and the outer peripheral side of the spacer 21. The insertion portion 77 is located between the curved surface portions 78, 78 that connect the inner plate portion 71 and the outer plate portion 72 in a smooth arc shape, and is formed in an arc shape.

The upper plate portion 73 of the spacer 21 has a flat annular shape, and the outer diameter dimension is larger than the outer diameter dimension of the outer plate portion 72 and the inner diameter dimension is smaller than the inner diameter dimension of the inner plate portion 71. Has been formed. Further, the upper plate portion 73 is formed above the respective protrusions 75, 76 of the inner plate portion 71 and the outer plate portion 72, and these protrusions 75, 76 are formed by a mold which is vertically aligned. An arc-shaped groove portion 79 is formed for removing the mold when performing.

The cable reel device 1 is
Inside the stator 14, the spacer 21 and the flat cable 22
In a state in which and are housed, the rotor 12 and the ring 16 are combined from above and below to be assembled. Then, when the cable reel device 1 is assembled, the ring engaging pieces 64 of the rotor 12 are engaged with the rotor engaging holes 46 of the ring 16 to be prevented from coming off, and the attaching piece parts 52 of the rotor 12 are provided. The stator 14 and the spacer 21 are rotatably held between 53, 53 and the flange portion 45 of the ring 16. In addition, the spacer 21 uses the inner edge of the upper plate 73 as a rotor.
The inner plate portion 71 is slidably engaged with the 12 spacer engaging pieces 63.
The lower end portion of the outer plate portion 72 and the lower end portion of the outer plate portion 72 are hung and supported by a spacer engaging piece 63 integrally formed with the shaft portion 51 located on the inner peripheral side of the case 11 while being separated from the bottom plate portion 31 of the stator 14. . Further, in this state, the upper plate portion 73 of the spacer 21 is elastically pressed downward by the spacer pressing piece 61 of the rotor 12 to prevent rattling in the vertical direction (axial direction), and at the same time, the spacer is pressed. The outer edge of the upper plate portion 73 of the 21 is
Of the cable is a space that is slidably in contact with the outer stepped portion 41 or faces the outer stepped portion 41 with a slight gap and is surrounded by the upper plate portion 73, the shaft portion 51 of the rotor 12, the bottom plate portion 31 of the stator 14, and the frame portion 33. Storage
It is 17.

The spacer pressing piece 61 of the rotor 12 does not press the upper plate portion 73 of the spacer 21 and the upper plate portion 73 is not pressed.
The spacer pressing piece 61 and the upper plate portion 73 may be provided with a slight gap.

The flat cable 22 accommodated in the cable accommodating portion 17 is inserted into the inserting portion 77 of the spacer 21 and is bent into a substantially U shape and folded back to form an outer peripheral surface of the shaft portion 51. It is wound between the inner peripheral surface of the inner plate portion 71 of the spacer 21 and the inner peripheral surface of the frame portion 33 and the outer plate portion of the spacer 21.
It is wound between the outer peripheral surface of 72. That is, the flat cable 22 is wound in the counterclockwise direction from the inner peripheral side to the outer peripheral side inside the spacer 21 as viewed from above, and on the outer side of the spacer 21 from the inner peripheral side to the outer peripheral side. It is wound clockwise toward the side.

Further, in this state, each ridge 7 of the spacer 21 is
The reference numerals 5 and 76 are designed to avoid the conductor of the flat cable 22 and to come into contact with the film-only portion to reduce the sliding resistance between the spacer 21 and the flat cable 22.

Next, the operation of this embodiment will be described.

First, when the steering wheel is rotated to the maximum in the clockwise direction as viewed from the upper side (passenger side), the flat cable 22 is pulled by the shaft portion 51 of the rotor 12, and the shaft portion 51 is pulled. Is wound around the outer peripheral surface in the clockwise direction from the outer peripheral side toward the inner peripheral side.

When the steering wheel is rotated counterclockwise from this state, the flat cable 22 is rewound inside the spacer 21 and swells in the radial direction to expand the inner circumference of the inner plate portion 71 of the spacer 21. It is pressed against the surface.

When the steering wheel is further rotated counterclockwise, the flat cable 22 moves along the inner plate portion 71, passes through the insertion portion 77, and passes through the spacer.
It is extended to the outside of 21. At this time, the flat cable 22
Is bent into a substantially U shape at the insertion portion 77, and pushes the curved surface portion 78 of the insertion portion 77 to rotate the spacer 21 in the counterclockwise direction. Further, the flat cable 22 that is fed out to the outside of the spacer 21 through the insertion portion 77 is pressed and wound around the inner peripheral side of the frame portion 33 of the stator 14 by its elasticity.

Further, when the steering wheel is rotated to the maximum extent in the counterclockwise direction,
Most of the flat cable 22 is pressed against the inner peripheral side of the frame portion 33 of the stator 14 and wound in the counterclockwise direction from the outer peripheral side toward the inner peripheral side.

If the steering wheel is rotated clockwise from this state, the flat cable
22 is pulled by the shaft portion 51 of the rotor 12 and is wound around the outer peripheral portion of the shaft portion 51. At this time, the flat cable
22 is drawn into the inside of the spacer 21 through the insertion portion 77 of the spacer 21, and the curved surface portion 78 of the insertion portion 77 is also included.
Is pushed to rotate the spacer 21 clockwise.

When the steering wheel is rotated clockwise to the maximum extent, the flat cable 22 is mostly wound around the outer peripheral portion of the shaft portion 51 of the rotor 12 and returns to the initial state.

As described above, according to the cable reel device 1 of the present embodiment, the flat cable 22 is wound in the cable housing portion 17 in the forward and reverse directions while the steering wheel is rotated in the forward and reverse directions. Therefore, the length of the flat cable 22 is longer than that of a cable reel device that is configured to wind the flat cable 22 around the center axis in one direction, and then tighten and rewind the flat cable 22. Can be significantly shortened, and the manufacturing cost can be reduced.

Further, the flat cable 22 is connected to the shaft portion 51 of the rotor 12 by the spacer 21 housed in the cable housing portion 17.
Since the outer peripheral portion and the inner peripheral portion of the frame portion 33 of the stator 14 can be separately wound, the flat cable 22 can be smoothly moved and the cable reel device 1 can be stably rotated.

According to the cable reel device 1 of this embodiment, the inner peripheral edge of the spacer 21 is engaged with the spacer engaging piece 63 projecting from the shaft 51 of the rotor 12 constituting the case 11. Since the spacer 21 is supported by being separated from the bottom plate portion 31 of the stator 14 in a state of being slidably contacted with the bottom plate portion 31 of the case 11, the spacer 21 has a case
When rotating with respect to 11, by reducing the distance that the spacer 21 and the case 11 slide contact, it is possible to reduce the frictional resistance between the spacer 21 and the stator 14, the spacer 21 can be smoothly rotated, It is also possible to reduce the generation of sliding noise.

Further, since the spacer 21 is suspended and supported, it is not necessary to form a guide groove or the like in the bottom plate portion 31 of the cable storage portion 17, and the upper surface of the bottom plate portion 31 can be formed in a flat shape. Therefore, the structure of the bottom plate portion 31 is simplified,
In particular, since the thickness of the bottom plate portion 31 can be made substantially constant, the moldability can be improved, and it is not necessary to use a separate member such as a tape having a small sliding resistance, and the manufacturing cost can be reduced. Further, the flat cable 22 can be smoothly moved without falling into a groove formed in the bottom plate portion 31 or the like.

In this embodiment, the spacer engaging pieces 63 projecting from the outer peripheral surface of the shaft portion 51 are locked to the inner edge of the upper plate portion 21 of the spacer 21 to suspend the spacer 21. Since it is supported by being lowered, the area in which the spacer 21 contacts the case 11 can be easily reduced, and the spacer 21 can be smoothly rotated, as compared with the configuration of suspending and supporting other portions.

Further, the upper plate portion 73 of the spacer 21 is located above the protrusions 75 and 76 of the inner plate portion 71 and the outer plate portion 72,
Since the groove portion 79 is formed, the spacer 21 can be easily formed by a mold that is vertically matched, and the upper plate portion 73 is easily elastically deformed in the vicinity of each groove portion 79. The joint piece 63 can be engaged with a small force.

The upper plate portion integrally formed with the spacer 21
Since the upper side of the cable storage section 17 is covered with 73, there is no need to use a case body or the like of another member, and the number of parts is reduced,
The manufacturing cost can be reduced.

Further, since the inner ridges 75 and the outer ridges 76 having the longitudinal direction in the circumferential direction are formed on the inner peripheral side and the outer peripheral side of the spacer 21, respectively, the contact area between the spacer 21 and the flat cable 22 is increased. Becomes smaller, the frictional resistance is reduced,
This flat cable 22 can be moved smoothly. Since the flat cable 22 can be smoothly moved and smoothly introduced into the insertion portion 77, even when the flat cable 22 is rewound from the shaft portion 51, the flat cable 22 swells to the inner peripheral side. Buckling can be prevented, the flat cable 22 can be smoothly moved without being disturbed, the frame portion 33 and the shaft portion 51 of the cable reel device 1 can be stably rotated, and the elasticity is small,
Since a thinner and more flexible flat cable 22 can be used, the radius dimension of the bent portion of the flat cable 22 in the insertion portion 77 of the spacer 21 can be reduced and the spacer 21
It is possible to reduce the diameter dimension of and to downsize the cable reel device. Further, since the flat cable 22 can be smoothly moved without using a slippery sheet or the like, the structure and the manufacturing process can be simplified and the manufacturing cost can be reduced.

In the above embodiment, the rotor 12 is attached to the lower cover 5 of the steering wheel body 2 as shown in FIG. 3, but, for example, as shown in FIG. The rotor 12 is integrally formed on the
The manufacturing cost can be reduced by reducing the number of parts and the number of assembly steps.

Further, as shown in FIG. 5, an outer edge portion of the upper plate portion 73 of the spacer 21 is slidably engaged with an outer step portion 41a as a supporting portion formed at the upper end of the frame portion 33 of the stator 14. It is also possible to integrally form the support portion 81 and suspend and support the spacer 21 by engaging the support portion 81 and the outer step portion 41a.

Then, as shown in FIGS. 6 to 8, the inner plate portion 71 and the outer plate portion 72 are provided on the upper surface of the upper plate portion 73 of the spacer 21.
The annular guide portion 83 is formed in a concentric annular shape with the concave portion facing downward, and each mounting piece portion 52, 53, 53 of the rotor 12 is formed.
A guide body guide portion 85 slidably engaged with the annular guide portion 83 is formed, and by the engagement of the annular guide portion 83 and the guide body guide portion 85, the radial rattling of the spacer 21 is formed. Therefore, the spacer 21 can be smoothly rotated.

In the structure shown in FIGS. 6 to 8, the annular guide portion 83 of the spacer 21 is provided so as to project upward, and the rotor 12 is slidably engaged with the projected annular guide portion 83. The guide body guide portion 85 to be fitted may be recessed.

Further, in each of the above embodiments, the shaft portion 51 is formed integrally with the rotor 12 located on the upper side, and the frame portion 33 is formed integrally with the stator 14 located on the lower side.
The rotor 12 is provided with the frame 33 integrally or separately, and the stator 14
The shaft portion 51 may be provided integrally or separately.

Further, in each of the above embodiments, the flat cable 22 in which a plurality of conductors are arranged side by side is used as the cable, but it is also possible to use a substantially cylindrical electric wire in which a plurality of conductors are housed in an insulating tube, Further, an optical fiber or the like can be used instead of the conductive wire.

[0059]

According to the cable reel device of the first aspect of the present invention, the cable reel device is arranged between the members that rotate in the forward and reverse directions, and each member has a frame portion and a shaft. By connecting the parts to each other, these members can be connected by a cable housed in a cable housing part between the frame part and the shaft part, and power or a signal can be transmitted by the cable. By suspending and supporting the guide body in the case, friction between the guide body and the bottom of the cable storage section is eliminated, and the operation can be smoothed, and the bottom section of the cable storage section can be formed in a flat shape. Therefore, the manufacturing cost can be reduced.

According to the cable reel device of the second aspect, in addition to the effect of the first aspect, the inner peripheral portion of the guide body is slidable by the support portion provided on the upper portion of the shaft portion constituting the case. Since the guide body is locked and suspended for support, the distance between the guide body and the case when the guide body rotates relative to the case is reduced compared to the configuration in which the bottom of the guide body is slidably contacted with the case. , While reducing the sliding resistance,
The structure of the case can be simplified and the manufacturing cost can be reduced.

According to the cable reel device of the third aspect, in addition to the effect of the first aspect, the outer peripheral portion of the guide body is slidably locked by the supporting portion provided on the upper portion of the frame portion forming the case. Since it is suspended and supported, the structure of the case can be simplified and the manufacturing cost can be reduced.

In the cable reel device according to the fourth aspect, in addition to the effect according to any one of the first to third aspects, at least one of the shaft portion and the frame portion is formed integrally with the cover constituting the steering wheel, so that the cable is formed. It is possible to reduce the number of parts and the number of assembling steps of the reel device for manufacturing, and to reduce the manufacturing cost.

In the cable reel device according to the fifth aspect, in addition to the effect according to any one of the first to fourth aspects, an annular guide portion having an annular shape is provided on the upper surface of the guide body,
Since the guide body guide portion that slidably engages with the annular guide portion is provided in the case, rattling of the guide body in the radial direction is suppressed, and the guide body can be smoothly rotated.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a cable reel device of the present invention.

FIG. 2 is an exploded perspective view of the same cable reel device.

FIG. 3 is a perspective view of the same cable reel device and a steering wheel in an exploded state.

FIG. 4 is a sectional view showing another embodiment of the cable reel device of the present invention.

FIG. 5 is a cross-sectional view showing another embodiment of the cable reel device of the present invention.

FIG. 6 is a perspective view showing another embodiment of the cable reel device of the present invention.

FIG. 7 is a cross-sectional view of the same cable reel device.

FIG. 8 is an exploded perspective view of the same cable reel device.

[Explanation of symbols]

 1 Cable reel device 5 Lower cover as cover 11 Case 17 Cable storage 21 Spacer as guide 22 Flat cable as cable 31 Bottom plate as bottom 33 Frame 41a Outer step 51 as support 51 Shaft 63 Spacer engaging piece as support 83 Annular guide 85 Guide body guide

Claims (5)

[Claims] 1. A substantially cylindrical frame part, a shaft part provided inside the frame part so as to be rotatable in forward and reverse directions relative to the frame part, and the frame part and the shaft part. A case that has a bottom portion that closes the bottom portion side between them, and forms a cable storage portion surrounded by these frame portion, shaft portion, and bottom portion; one end portion is connected to the frame portion, and the other end portion is the shaft. A cable connected to the cable storage section and stored in the cable storage section; and a cable that is positioned around the shaft section of the cable storage section and rotatably supported in the case rotatably in the circumferential direction; And a guide body that guides the cable by forming an insertion portion through which the cable reel device is inserted. 2. The cable according to claim 1, wherein a support portion for slidably locking and suspendingly supporting an inner peripheral portion of the guide body is provided on an upper portion of a shaft portion constituting the case. Reel device. 3. A cable according to claim 1, wherein a support portion for slidably locking and suspending and supporting the outer peripheral portion of the guide body is provided on the upper portion of the frame portion constituting the case. Reel device. 4. The cable reel device according to claim 1, wherein at least one of the shaft portion and the frame portion is formed integrally with a cover that constitutes the steering wheel. 5. An annular guide portion having an annular shape is provided on the upper surface of the guide body, and a guide body guide portion slidably engaged with the annular guide portion is provided on the case. The reel device for a cable according to any one of 1 to 4.