JP2018045787A - Rotary connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary connector hardly causing a dance of an electric connecting portion.SOLUTION: If a rotator 9 is rotated from a neutral position of rotations in one direction, though a locking portion 38 rises, it has not locked to a locked portion 40 until a first rotation from the neutral position. Thus, from the neutral position until the first rotation, a moving part of an electric connecting portion 24 based on rotator rotations is located between a stator 8 and an intermediate member 32. Therefore, during the first rotation, an electric wire which is the electric connecting portion 24 is wound between the stator 8 and the intermediate member 32. When the rotator 9 enters a second rotation, a locking portion 38 projects out into the locked portion 40 of the same set, and is locked with the locked portion 40. Therefore, when entering the second rotation, the moving part of the electric connecting portion 24 based on the rotator rotations is located between the rotator 9 and the intermediate member 32. Thus, the electric wire which is the electric connecting portion 24 is wound between the rotator 9 and the intermediate member 32.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a rotary connector that ensures electrical connection between a stator and a rotator.

  Conventionally, a steering roll connector is widely known as a rotating connector that secures an electrical connection between two components that rotate with respect to the other. A technology for electrically connecting a stator and a rotator through a flexible cable is well known for this type of steering roll connector (see Patent Document 1, etc.).

JP 2004-120900 A

  By the way, when the rotator rotates, there is a possibility that the flexible cable slides on the inner surface of the housing of the rotary connector, which causes a problem of generating wear noise. Therefore, there has been a need to prevent the dancing of electric wires (such as cords) that electrically connect between the stator and the rotator.

  The objective of this invention is providing the rotation connector which can make it difficult to produce the dance of an electrical-connection part.

  A rotary connector that solves the above problem is configured to allow relative rotation of a stator and a rotator disposed on the same axis while securing an electrical connection between the stator and the rotator. When the rotator is in the first rotation range and the electrical connection between the rotators and the rotator is in the first rotation range, the intermediate member interposed with the electrical connection is rotated synchronously with the rotator, thereby rotating the rotator based on the rotation of the rotator. When the electrical connection portion moves between the stator and the intermediate member, and the rotator takes a second rotation range, the rotator is swung with respect to the intermediate member, and the electrical connection portion is rotated based on the rotation of the rotator. And an idling mechanism having a position where the sway moves between the rotator and the intermediate member.

  According to this configuration, when the rotator rotates, the location where the electrical connection portion moves based on the rotation of the rotator is switched during the rotation of the rotator by the idle swing mechanism. For this reason, it is possible to divide the location where the electrical connection portion moves into a plurality of locations, instead of having only one location where the electrical connection portion moves based on the rotation of the rotator. Therefore, when the rotator is rotated, it is not necessary to concentrate the portion where the electrical connection portion moves in one place, so that it is possible to make the rotator dance less likely to occur.

  In the rotary connector, the first rotation range is a range from an initial position of rotation to a position where the rotator has turned a specified amount, and the second rotation range is that the rotator exceeds the specified amount. Further, it is preferably within the range when turning. According to this configuration, until the rotator rotates by a specified amount from the initial rotation position, the location where the electrical connection portion moves based on the rotation of the rotator can be between the stator and the intermediate member. During further rotation beyond the amount, the location where the electrical connection moves based on the rotation of the rotator can be between the rotator and the intermediate member.

  In the rotary connector, the idle swing mechanism is provided in the locking portion that operates according to the rotation of the rotator, and the intermediate member, and guides the operation of the locking portion according to the rotation of the rotator, A guide part that moves the locking part between an effective position and an ineffective position, and provided in the intermediate member, and when the locking part is positioned at the effective position, by locking with the locking part, It is preferable to include a locked portion that fixes the intermediate member to the stator. According to this configuration, it is possible to simplify the configuration of the idle swing mechanism in which the main portion includes the locking portion, the guide portion, and the locked portion.

  In the rotary connector, the rotator is rotatable in both left and right directions from a neutral position of rotation, and a pair of the locking portion, the guide portion, and the locked portion is provided for each rotation on the left and right. It is preferable to selectively operate according to the rotation direction of the rotator. According to this structure, even if it takes the structure where a rotator rotates to either right or left from a neutral position, it becomes possible to respond to it.

  In the rotary connector, it is preferable that one of the sets provided in a pair is disposed on the radially inner side of the rotator and the other is disposed on the radially outer side of the rotator. According to this configuration, a pair of sets can be arranged in a plane, which is advantageous in suppressing the device size in the height direction of the rotary connector.

  In the rotary connector, it is preferable that the electrical connection portion is an electric wire. According to this structure, since the winding location of the electric wire at the time of rotator rotation is switched on the way, it becomes possible to divide the bending of an electric wire. Therefore, it is possible to obtain a remarkable effect of making it difficult for the electric wire to dance.

  According to the present invention, it is possible to make it difficult for the electric connection portion to dance.

The perspective view of the rotation connector of one Embodiment. The longitudinal cross-sectional view of a rotation connector. The exploded perspective view of the rotation connector seen from the top. The exploded perspective view of the rotation connector seen from the bottom. The table which summarized the operation state which each member takes according to the amount of rotator rotation. The plane sectional view of a rotation connector. The longitudinal cross-sectional view of the rotation connector which removed the rotator. The partial enlarged plan view which shows a moderation generation | occurrence | production part. (A)-(c) is an action | operation figure of an idling mechanism when a rotator rotates to one direction. (A), (b) is an operation | movement figure of the moderation generation | occurrence | production part when a rotator rotates to one direction. (A), (b) is an operation | movement figure of an idling mechanism when a rotator rotates in another direction. The operation diagram of the moderation generating part when the rotator rotates in the other direction. The schematic diagram which shows the electrical connection part of another example. The schematic diagram of the rotation connector of another example.

Hereinafter, an embodiment of a rotary connector will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the rotary connector 1 for a vehicle is attached between a vehicle body 2 on the fixed side and a steering shaft 3 on the rotating side. The rotary connector 1 ensures communication between the vehicle body 2 and a steering wheel (not shown) even when the steering shaft 3 is rotated. The rotary connector 1 transmits the output signal Sout of the detection unit 4 provided on the steering wheel to the controller 5 on the vehicle body 2 side. The controller 5 includes an ECU (Electronic Control Unit) that manages the operation of the rotary connector 1, and determines the detection state of the detection unit 4 based on the output signal Sout.

  The detection part 4 consists of a switch, a sensor, etc. which are arrange | positioned at a steering wheel, for example. The output signal Sout is not limited to an on / off signal detected by, for example, a switch or a sensor, but may be a data signal detected by sensors such as an image sensor.

  The rotary connector 1 includes a stator 8 attached and fixed to the vehicle body 2 and a rotator 9 that rotates with respect to the stator 8. The stator 8 and the rotator 9 are attached so as to overlap each other and are disposed on the same axis (on the axis L1). The axis L1 is the rotational axis of the steering shaft 3. Circular insertion holes 10 and 11 are formed at the centers of the stator 8 and the rotator 9, and the steering shaft 3 is inserted through the insertion holes 10 and 11. The rotator 9 is secured from the stator 8 by being fixed to the sleeve 12 with the stator 8 sandwiched therebetween. When the steering shaft 3 is rotated, the rotator 9 and the sleeve 12 are integrally rotated with respect to the stator 8 around the steering shaft 3 and the axis L1 (in the direction of arrow R in FIG. 1).

  2 to 4, the rotator 9 includes a rotator base 15 having an insertion hole 11 through which a shaft portion 14 (in this example, the steering shaft 3) that rotates synchronously with the rotator 9, and the insertion hole 11. And an inner wall portion 16 standing upright. The inner wall portion 16 is formed in an annular shape (annular shape) along the axis L1. The rotator base 15 and the inner wall 16 of this example are integrally formed. The inner wall portion 16 extends in the height direction of the rotary connector 1 (Z-axis direction in FIGS. 2 and 3).

  The stator 8 includes a stator base portion 17 having an insertion hole 10 through which a shaft portion 14 (the steering shaft 3 in this example) passes, and an outer wall portion 18 erected so as to face the inner wall portion 16 of the rotator 9. Prepare. The outer wall portion 18 is formed in an annular shape (annular shape) along the axis L1. In the case of this example, the stator base 17 and the outer wall 18 are assembled by a plurality of snap fits. The outer wall portion 18 extends in the height direction of the rotary connector 1 (Z-axis direction in FIGS. 2 and 3).

  The rotary connector 1 includes an electrical connection portion 24 that electrically connects the stator 8 and the rotator 9. The electrical connection portion 24 is an electric wire having a predetermined length that can permit relative rotation of the stator 8 and the rotator 9, and is preferably made of, for example, a wire (cord) that is insulated by rubber or the like. The electrical connection portion 24 is accommodated in the housing of the rotary connector 1. One end of the electrical connecting portion 24 is pulled out from a through hole 26 (see FIG. 3) of the rotator 9 and connected to a connector (not shown) of the rotator 9, and the other end is through a through hole 28 (see FIG. 4) of the stator 8. ) And is connected to a connector (not shown) of the stator 8.

  The rotary connector 1 includes an idling mechanism 31 that divides the rotation amount of the rotator 9 into small rotations during rotation. The idling mechanism 31 includes an intermediate member 32 that can rotate relative to both the stator 8 and the rotator 9. The intermediate member 32 is formed in a shape having an annular inner flange 33 extending around the rotation axis L1 and an insertion hole 34 through which the cylindrical inner wall 16 of the rotator 9 passes. The electrical connection portion 24 is interposed in the intermediate member 32 by passing the electrical connection portion 24 through a through hole 35 formed in the inner flange portion 33.

  As shown in FIG. 5, when the rotator 9 takes the first rotation range E <b> 1, the idle swing mechanism 31 rotates the rotator by rotating the intermediate member 32 interposed with the electrical connection portion 24 in synchronization with the rotator 9. Based on this, the location where the electrical connection 24 moves is between the stator 8 and the intermediate member 32. Further, when the rotator 9 takes the second rotation range E2, the idling mechanism 31 causes the rotator 9 to swing idly with respect to the intermediate member 32 so that the electrical connection portion 24 moves based on the rotation of the rotator. Between the members 32.

  The first rotation range E1 is preferably a range from the initial position of rotation (the neutral position in this example) to a position rotated by a specified amount. Specifically, it refers to the range of the first rotation to the left or right with respect to the neutral position of the rotator 9. Moreover, it is preferable that the 2nd rotation range E2 is a range when the rotator 9 rotates further exceeding a regulation amount. Specifically, it refers to a range after the second rotation after rotating the rotator 9 once.

  As shown in FIGS. 2 to 4, the idle swing mechanism 31 includes a locking portion 38 that operates according to the rotation of the rotator 9, a guide portion 39 that moves the locking portion 38 between the effective position and the invalid position, And a locked portion 40 to which the locking portion 38 is locked.

  The locking portion 38 is formed in a shape including a main body portion 41 and a protrusion 42 protruding from the main body portion 41. The locking portion 38 is attached to a support piece 43 formed inside the stator 8 so as to be relatively movable. The locking portion 38 of this example is housed in the support piece 43 so as to be vertically movable in the height direction of the rotary connector 1 (the Z-axis direction in FIGS. 2 and 3).

  The guide portion 39 is provided on the intermediate member 32 and moves the locking portion 38 between the effective position and the ineffective position by guiding the operation (vertical movement) of the locking portion 38 according to the rotation of the rotator 9. . The guide portion 39 is formed on the back surface of the inner flange portion 33 of the intermediate member 32 so as to extend in the height direction of the rotary connector 1. The guide portion 39 has a groove shape formed so as to circulate a plurality of times around the axis L <b> 1, and this groove shape is locked to a notch groove 45 formed on the side surface of the main body portion 41 of the locking portion 38. ing. The effective position refers to a position where the locking portion 38 is locked to the locked portion 40, and the invalid position refers to a position where the locking portion 38 is not locked to the locked portion 40.

  The locked portion 40 is provided in the intermediate member 32, and specifically includes a long hole provided in the inner flange portion 33 of the intermediate member 32. The locked portion 40 fixes the intermediate member 32 to the stator 8 by locking with the locking portion 38 when the locking portion 38 is located at the effective position.

  As shown in FIG. 6, a pair of the locking portion 38, the guide portion 39, and the locked portion 40 is provided for each of the left and right rotations, and selectively according to the rotation direction from the neutral position of the rotator 9. Operate. In addition, one of these pairs provided is disposed on the radially inner side of the rotator 9 and the other is disposed on the radially outer side of the rotator 9. In the case of this example, one set (left side in FIG. 6) is a first set K1, and the other set (right side in FIG. 6) is a second set K2. When the rotator 9 is rotated in one direction from the neutral position, the locking portion 38 is locked to the locked portion 40 in the first set K1, and when the rotator 9 is rotated in the other direction from the neutral position, the second The locking portion 38 is locked to the locked portion 40 in the set K2.

  As shown in FIG. 7, the groove shape of the guide portion 39 is formed in an inclined shape inclined with respect to the horizontal plane. By doing so, the rotation of the rotator 9 and the intermediate member 32 is converted into the vertical movement of the locking portion 38. The notch groove 45 of the locking portion 38 is also formed in an inclined shape in accordance with the groove shape of the guide portion 39.

  As shown in FIG. 8, the idling mechanism 31 includes a moderation generator 50 that allows the rotator 9 and the intermediate member 32 to rotate synchronously. The moderation generator 50 includes a moderation piece 51 that contacts the intermediate member 32 and a biasing member 52 that presses the moderation piece 51 later. The moderation piece 51 is stored in a storage hole 53 provided in the rotator 9 with the biasing member 52 disposed on the back surface. The rotator 9 and the intermediate member 32 rotate synchronously while the moderation piece 51 urged from the back surface is locked to the tapered groove portion 54 formed on the wall surface of the intermediate member 32.

Next, the operation and effect of the rotary connector 1 will be described with reference to FIGS.
As shown in FIG. 9 (a), when the rotator 9 is located at the neutral position of rotation, that is, when the steering wheel is operated to the neutral position, the electrical connecting portion 24 has the maximum rotation amount of the rotator 9 (three rotations). ) Is in a bent state. This is because, when the rotator 9 is rotated to the left or right from the neutral position, it is possible to rotate to the same maximum rotation amount (for example, three rotations from the neutral position for both the left and right).

  Further, when the rotator 9 is located at the neutral position of rotation, the locking portion 38a of the first set K1 is not locked to the locked portion 40a of the same set, and the locking portion 38b of the second set K2. Are not locked to the same set of locked portions 40b. In other words, in the idle swing mechanism 31, both the first set K <b> 1 and the second set K <b> 2 are in an invalid position, and the intermediate member 32 is not fixed to the stator 8. Therefore, when the moderation piece 51 of the moderation generation unit 50 is pressed against the groove portion 54 by the urging member 52, the rotator 9 and the intermediate member 32 can be rotated synchronously.

  As shown in FIG. 9B, when the rotator 9 is rotated in one direction from the rotational neutral position (the direction of the arrow R1 in FIG. 9B), the locking portions 38a of the first set K1 are the same set. The second set K2 of the locking portion 38b is guided by the same set of guide portions 39b and is lowered. At this time, the locking portion 38a of the first set K1 moves upward, but is not yet locked to the locked portion 40a from the neutral position to the first rotation. That is, both the first set K1 and the second set K2 maintain the invalid position, and the rotator 9 and the intermediate member 32 rotate synchronously. Therefore, between the neutral position and the first rotation in the direction of the arrow R <b> 1, the location where the electrical connection portion 24 moves based on the rotation of the rotator is between the stator 8 and the intermediate member 32. That is, the electric wire that is the electrical connection portion 24 is wound between the stator 8 and the intermediate member 32.

  As shown in FIG. 9C, when the rotator 9 enters the second turn of the rotation in the direction of the arrow R1, the locking portion 38a of the first set K1 jumps into the locked portion 40a of the same set, and this covered Locks to the locking portion 40a. That is, the first set K1 is switched to the effective position. As a result, the intermediate member 32 is fixed to the stator 8.

  As shown in the flow of FIG. 10A → FIG. 10B, after the intermediate member 32 is fixed to the stator 8 by the locking portion 38a and the locked portion 40a of the first set K1, the rotator 9 is moved to the arrow. When further rotated in the R1 direction, the moderation piece 51 gets over the moderation mountain 54a adjacent to the groove portion 54, and the moderation generation unit 50 becomes free. Thereby, the rotator 9 rotates with respect to the intermediate member 32 (stator 8). Therefore, when the rotator 9 enters the second rotation, the location where the electrical connecting portion 24 moves based on the rotation of the rotator is between the rotator 9 and the intermediate member 32. That is, the electric wire that is the electrical connection portion 24 is wound between the rotator 9 and the intermediate member 32.

  As shown in FIG. 11A, when the rotator 9 is rotated in the other direction (in the direction of arrow R2 in FIG. 11A) from the rotational neutral position, the locking portions 38a of the first set K1 are the same set. The guide portion 39a is guided and lowered, and the locking portion 38b of the second set K2 is guided and raised by the same set of guide portions 39b. At this time, although the locking portion 38b of the second set K2 moves upward, it is not yet locked to the locked portion 40b from the neutral position to the first rotation. That is, both the first set K1 and the second set K2 maintain the invalid position, and the rotator 9 and the intermediate member 32 rotate synchronously. Therefore, between the neutral position and the first rotation in the direction of the arrow R2, the electrical connection portion 24 (electric wire) is wound between the stator 8 and the intermediate member 32.

  As shown in FIG. 11B, when the rotator 9 enters the second turn in the direction of the arrow R2, the locking portion 38b of the second set K2 jumps into the locked portion 40b of the same set, and this locked Locks with the portion 40b. That is, the second set K2 is switched to the effective position. As a result, the intermediate member 32 is fixed to the stator 8.

  As shown in FIG. 12, after the intermediate member 32 is fixed to the stator 8 by the locking portion 38b and the locked portion 40b of the second set K2, when the rotator 9 is further rotated in the direction of the arrow R2, the moderation piece 51 overcomes the moderation mountain 54b adjacent to the groove portion 54, and the moderation generating portion 50 becomes free. Thereby, the rotator 9 rotates with respect to the intermediate member 32 (stator 8). Therefore, when the rotator 9 enters the second rotation, the electrical connection portion 24 (electric wire) is wound between the rotator 9 and the intermediate member 32.

  In the case of this example, when the rotator is rotated, the location where the electrical connecting portion 24 moves based on the rotation of the rotator (the location where the electric wire is wound) is moved halfway through the rotation of the rotator (the first and second rotations). Switch between). For this reason, it is possible to divide the location where the electrical connection portion 24 moves into a plurality of locations, rather than having only one location where the electrical connection portion 24 moves based on the rotation of the rotator. Therefore, when the rotator is rotated, it is not necessary to concentrate the place where the electric connecting portion 24 moves in one place, so that the electric connecting portion 24 can be hardly danced, and further, the electric connecting portion 24 can be hardly entangled. be able to. In addition, the dance of the electric connection part 24 (electric wire) refers to a state in which the electric wire moves in the housing of the rotary connector 1 and contacts the inner wall of the housing, and if this can be suppressed, abnormal noise or the like is generated. Can be prevented.

  The first rotation range E1 is a range from the initial position of rotation (the neutral position in this example) to a position (a first rotation in this example) that has been rotated by a specified amount, and the second rotation range E2 is This is the range when the rotator 9 rotates further beyond the specified amount (in this example, after the second rotation). Therefore, at the first rotation of the rotator 9, the location where the electrical connecting portion 24 moves based on the rotation of the rotator can be between the stator 8 and the intermediate member 32, and at the second rotation of the rotator 9, The location where the electrical connection 24 moves based on the rotation of the rotator can be between the rotator 9 and the intermediate member 32.

  The idle swing mechanism 31 has a configuration including a locking portion 38, a guide portion 39, and a locked portion 40. Therefore, the configuration of the idle swing mechanism 31 can be simplified, with the main part including the locking portion 38, the guide portion 39, and the locked portion 40.

  The rotator 9 can be rotated in both the left and right directions from the rotation neutral position, and a pair of the locking portion 38, the guide portion 39 and the locked portion 40 is provided for each rotation on the left and right sides. Operates selectively according to direction. Therefore, even if the rotator 9 has a structure that rotates to the left or right from the neutral position, it can cope with it.

  One pair (the first set K1) of the pair provided (the first set K1 and the second set K2) is disposed on the radially inner side of the rotator 9, and the other (the second set K2) is disposed on the radially outer side of the rotator 9. Is arranged. Therefore, the first set K1 and the second set K2 can be arranged in a plane, which is advantageous in suppressing the device size of the rotary connector 1 in the height direction.

  The electrical connection portion 24 is an electric wire such as a cord. For this reason, since the winding location of the electric wire at the time of rotation of a rotator will be switched on the way, it becomes possible to divide the bending of an electric wire. Therefore, it is possible to obtain a remarkable effect of making it difficult for the electric wire to be danced or tangled.

  In the case of this example, since it is possible to use a wide variety of electrical connecting portions 24 (electric wires), it is possible to realize multi-channeling and high-speed communication accompanying the multi-functioning of the steering wheel.

Note that the embodiment is not limited to the configuration described so far, and may be modified as follows.
As shown in FIG. 13, the electrical connection portion 24 is not limited to a cord, and may be changed to a contact member such as a leaf spring brush contact, for example. In this case, a contact member that ensures the conduction is provided between the rotator 9 and the intermediate member 32, and a contact member that ensures the conduction is provided between the stator 8 and the intermediate member 32. Also in this case, it is possible to divide the rotation of the rotator 9 and avoid structural complications due to the large number of rotator rotations.

  As shown in FIG. 14, in the housing of the rotary connector 1, the wall portion (side wall portion) of the rotator 9 is positioned on the radially outer side of the rotary connector 1, and the wall portion (side wall portion) of the stator 8 is It is good also as a shape located in radial inside.

The rotator 9 has a plurality of holes (long holes) formed at equal intervals in the circumferential direction around the axis L1, but may have a shape in which these are omitted.
The first set K1 and the second set K2 are not limited to be arranged in the radial direction of the rotary connector 1, but may be arranged in the height direction of the rotary connector 1, for example.

The intermediate member 32 may be fixed to the stator 8 from the neutral position of rotation to the first rotation, and the intermediate member 32 may be rotated synchronously with the rotator 9 after the second rotation.
The first rotation range E1 and the second rotation range E2 can be changed to various modes other than those exemplified in the embodiment. Further, the specified amount, which is the rotation amount of the first rotation range E1, is not limited to one rotation but can be changed to another value.

The idle swing mechanism 31 can be appropriately changed to those having various structures.
-The electric wire which is an electrical connection part should just be a wire which can conduct electricity not only with a code | cord | chord.

-The electric wire which is the electrical connection part 24 may be multi-core (for example, litz wire) having a plurality of wirings.
-The electric wire which is the electrical connection part 24 is not restricted to being accommodated in the housing of the rotary connector 1, and may be exposed to the outside.

-The electrical connection part 24 should just be a member which can ensure the conduction | electrical_connection between the stator 8 and the rotator 9 not only in an electric wire or a leaf | plate spring brush contact.
The rotary connector 1 is not limited to one that can rotate in both the left and right directions from the neutral position, but may be one that rotates only in either the left or right direction. In this case, the idling mechanism 31 only needs to include one of the first set K1 and the second set K2.

The number of divisions of the rotator rotation by the idle swing mechanism 31 is not limited to two, and may be three or more, for example.
The rotary connector 1 is not limited to being applied to a vehicle, and may be used for other devices and apparatuses.

  DESCRIPTION OF SYMBOLS 1 ... Rotary connector, 8 ... Stator, 9 ... Rotator, 24 ... Electrical connection part, 31 ... Idle swing mechanism, 32 ... Intermediate member, 38 (38a, 38b) ... Locking part, 39 (39a, 39b) ... Guide part, 40 (40a, 40b) ... locked portion, L1 ... shaft, E1 ... first rotation range, E2 ... second rotation range.

Claims (6)

In a rotary connector that allows relative rotation of a stator and a rotator arranged on the same axis while securing an electrical connection between the stator and the rotator,
An electrical connection for electrically connecting the stator and the rotator;
When the rotator is in the first rotation range, the intermediate member having the electrical connection portion is rotated synchronously with the rotator, so that the location where the electrical connection portion moves based on the rotation of the rotator is changed between the stator and the intermediate portion. When the rotator takes a second rotation range between the members, the rotator is swung with respect to the intermediate member, and a position where the electrical connecting portion moves based on the rotation of the rotator is between the rotator and the intermediate member. A rotary connector comprising an idle swing mechanism. The first rotation range is a range from the initial position of rotation to a position where a predetermined amount is rotated,
The rotary connector according to claim 1, wherein the second rotation range is a range when the rotator further rotates beyond the specified amount. The idling mechanism is
A locking portion that operates according to the rotation of the rotator;
A guide part that is provided on the intermediate member and moves the locking part between an effective position and an ineffective position by guiding the operation of the locking part according to the rotation of the rotator;
A locking portion that is provided on the intermediate member and locks the intermediate member to the stator by locking with the locking portion when the locking portion is positioned at an effective position. Or the rotation connector of 2. The rotator is rotatable in both the left and right directions from a neutral position of rotation,
4. The rotary connector according to claim 3, wherein a pair of the locking portion, the guide portion, and the locked portion is provided for each of left and right rotations and selectively operates according to a rotation direction of the rotator. 5. The rotary connector according to claim 4, wherein one pair of the pair provided is disposed on an inner side in the radial direction of the rotator, and the other is disposed on an outer side in the radial direction of the rotator. The rotary connector according to claim 1, wherein the electrical connection portion is an electric wire.

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