JP2015126615A - Flat cable winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat cable winder suppressed in a tensile load.SOLUTION: In a flat cable winder (1), one end side (2A) of a flat cable (2) is wound, and the other end side (2B) of the flat cable is paid out. The maximum value of a tensile load when the other end side of the flat cable is paid out is 20 newtons or less.

Description

  The present invention relates to a flat cable winding device in which one end side of a flat cable is wound and the other end side of the flat cable is drawn out.

  For example, in a car or the like, a slide seat or a slide door provided so as to be slidable with respect to the vehicle is used. Electronic devices such as a seating sensor that detects whether or not an occupant is seated and a seatbelt sensor that detects whether or not a seatbelt is worn are attached to the slide seat. The sliding door is also provided with a drive motor for opening and closing the door window and an electronic device such as a door courtesy lamp for illuminating the foot when the door is released. For this reason, in order to connect the electronic device on the slide body side and the electronic device such as the control device provided on the vehicle body side to a vehicle provided with a slide body such as a slide seat or a slide door, Various wire routing devices or power feeding devices that wire wires are used.

  In such an electric cable routing device, there is an excess associated with sliding of the slide body on an electric wire (for example, sometimes referred to as a flat cable or a flat harness) that connects the electronic device on the slide body side and the electronic device on the vehicle body side. Since the long portion is formed, a winding device is used to wind up the extra length portion of the electric wire so that the electric wire does not interfere with the slide body or the like (for example, see Patent Document 1).

JP 2004-328985 A

  In the conventional winding device, a load for pulling the other end of the flat cable in order to feed out the other end of the flat cable (hereinafter, this load is referred to as a pull load) is large. When the tensile load is large, the load required to move the slide seat or the slide door in the direction in which the other end of the flat cable is drawn out becomes large.

  In addition, in the process of pulling the other end of the flat cable and increasing the length of the flat cable to be fed out, the minimum tensile load necessary for feeding out the flat cable may fluctuate. If it is large, the fluctuation range of the tensile load also becomes large. If the fluctuation range of the tensile load is large, the load required to move the slide seat or the slide door is not stable. For this reason, an operator who operates the slide sheet or the slide door cannot smoothly move the slide sheet or the slide door, and the operator feels uncomfortable.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the flat cable winding apparatus by which the tensile load was suppressed.

In order to achieve the above-described object, the flat cable winding device according to the present invention is characterized by the following (1) to (5).
(1) A flat cable winding device in which one end side of the flat cable is wound up and the other end side of the flat cable is fed out,
The maximum value of the tensile load when the other end side of the flat cable is drawn is 20 Newton or less.
A flat cable winding device.
(2) a case for accommodating the flat cable;
A central axis that is provided in the case and fixes one end of the flat cable, and a rotary table that is rotatably provided around the central axis;
A plurality of rollers for winding the flat cable from the outside of the case;
A biasing means for biasing the rotary table in the winding direction of the flat cable;
With
The rotary table is integrally provided with a disk-shaped table main body and a plurality of guide portions formed to protrude from the upper surface of the table main body,
In the table body, a plurality of rollers for winding the flat cable from the outside of the case are provided side by side along the circumferential direction of the table body,
The plurality of guide portions are provided at respective positions where the rollers are disposed, support the rollers rotatably, and slide-guide the rollers in the radial direction of the rotary table. The flat cable winding device according to (1) above.
(3) Each of the rollers integrally has a shaft portion as a rotation center,
Each of the guide portions includes a pair of support portions that insert the shaft portion between each other and rotatably support the shaft portion,
The flat cable winding device according to (2), wherein the pair of support portions are provided to extend in a direction parallel to a radial direction of the rotary table.
(4) The roller integrally includes a disk part, a peripheral wall erected in a cylindrical shape from the periphery of the disk part, and the shaft part erected in a columnar shape in the same direction as the peripheral wall from the disk part. The pair of support portions are opposed to each other in a direction perpendicular to the radial direction of the rotary table, and are connected to a facing surface that allows the shaft portion to be inserted between them, and to the facing surfaces. An arcuate sliding surface which is provided and slides on the inner peripheral surface of the peripheral wall;
The flat cable winding device according to (3) above, comprising:
(5) The biasing means is a mainspring.
The flat cable winding device according to any one of (2) to (4) above, wherein

According to the flat cable winding device having the above configuration (1), since the tensile load is suppressed, an operator who operates the slide sheet or the slide door can smoothly move the slide sheet or the slide door.
According to the flat cable winding device having the configuration (2), the rotary table is integrally provided with a disk-shaped table body and a plurality of guide portions formed to protrude from the upper surface of the table body. The table body is provided with a plurality of rollers for winding the flat cable from the outside of the case, arranged side by side along the circumferential direction of the table body, and the plurality of guide portions are arranged at respective positions where the rollers are arranged. Since each roller is rotatably supported and each roller is slidably guided in the radial direction of the rotary table, each roller is slid and guided by a plurality of guide portions formed protruding from the upper surface of the table body. Therefore, it is not necessary to form a concave locking groove from the upper surface of the rotor of the conventional slide mechanism, and the flat cable is eliminated by the amount of the locking groove omitted. It is possible to achieve the vertical size of the Le retractor. In addition, since the rotary table is integrally provided with a disk-shaped table body and a plurality of guide portions formed to protrude from the upper surface of the table body, the roller table is composed of two members, the rotary table and the roller. As a result of realizing the slide mechanism, the number of parts can be reduced as compared with the conventional winding mechanism in which the slide mechanism is realized by the three members of the roller main body, the shaft portion, and the rotor, thereby improving the assembling workability. be able to. Further, by omitting the locking groove, it is possible to improve dust resistance while simplifying the formation of the rotary table.
According to the flat cable winding device having the configuration of (3) above, each of the rollers integrally has a shaft portion as a rotation center, and each guide portion has a shaft portion inserted between each other, Since it has a pair of support parts which support a shaft part rotatably, and a pair of support parts are extended and provided in the direction parallel to the diameter direction of a turntable, it is a pair without increasing the number of parts. With this support portion, it is possible to realize a configuration in which the shaft portion is rotatably supported and is slidably guided along the radial direction of the rotary table.
According to the flat cable winding device having the configuration of (4) above, the roller stands in a circular shape in the same direction as the disk part, the peripheral wall standing in a cylindrical shape from the periphery of the disk part, and the peripheral part from the disk part. The pair of support portions are respectively provided with a facing surface facing in a direction perpendicular to the radial direction of the rotary table, and a continuous wall provided on the facing surface. An arc-shaped sliding surface that slides on the inner peripheral surface, and the inner peripheral surface of the peripheral wall is slid on the sliding surface while the shaft portion is rotated and slid on the opposing surface. The roller can be smoothly rotated and slid.
According to the flat cable winding device having the configuration (5), the biasing means is simply configured.

  According to the present invention, it is possible to provide a flat cable winding device in which a tensile load is suppressed.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a graph showing the relationship between the length of a fed flat cable and the tensile load in a conventional flat cable winding device. FIG. 2 is a perspective view showing an embodiment of the flat cable winding device of the present invention. 3 is an exploded perspective view showing the flat cable winding device shown in FIG. FIG. 4 is a perspective view showing a back side of a roller constituting the flat cable winding device shown in FIG. 3. FIG. 5 is an enlarged plan view showing a main part of the flat cable winding device shown in FIG. FIG. 6 is a view for explaining the operation of the flat cable winding device shown in FIG. 2. FIG. 7 is a graph showing the relationship between the length of the fed flat cable and the tensile load in one embodiment of the flat cable winding device of the present invention.

  Specific embodiments relating to the present invention will be described below with reference to the drawings.

  The inventor verified the relationship between the length of the flat cable to be fed and the tensile load in the conventional flat cable winding device, and obtained the relationship shown in FIG. FIG. 1 is a graph showing the relationship between the length of a fed flat cable and the tensile load in a conventional flat cable winding device. In FIG. 1, the length of the flat cable fed out is assigned to the horizontal axis, and the tensile load is assigned to the vertical axis.

  As shown in FIG. 1, in the conventional flat cable winding device, when the length of the fed flat cable is increased, the tensile load and the fluctuation range of the tensile load are increased. The conventional flat cable winding device requires a tensile load of about 50 Newton at the maximum in order to feed out the flat cable.

  The present inventor has invented various flat cable winding devices that improve the member that affects the tensile load in the flat cable winding device and suppress the tensile load (for example, Japanese Patent Application Laid-Open No. 2013-169093). Among these, in order for the operator to feel that the slide seat or the slide door can be smoothly moved, the maximum value of the tensile load when the other end of the flat cable is extended is 20 Newton or less. It was found that this is preferable.

  Below, one Embodiment of the flat cable winding apparatus of this invention which implement | achieves the tensile load whose maximum value is 20 Newton or less is described, referring FIGS.

  The flat cable winding device 1 winds a flat cable 2 that is routed between a vehicle and a slide seat that is slidably provided on a floor of the vehicle, for example. One end of the flat cable 2 is connected to a connector or the like provided on the floor side, the other end side is guided to the protector P guided along the slide rail, and the other end of the flat cable 2 is connected via the protector P. Is connected to a connector or the like on the slide seat side. The flat cable winding device 1 is provided in the vicinity of the slide rail, winds up the flat cable 2 as the protector P approaches and moves out the flat cable 2 as the protector P moves away. The slack of the flat cable 2 between the cable winding device 1 and the protector P is prevented, thereby preventing the flat cable 2 from interfering with the slide sheet or the like.

  The flat cable 2 includes a plurality of core wires that are parallel to each other and an insulating coating that covers each core wire, and is formed in a thin strip shape having flexibility. The core wire is formed by twisting a plurality of conductive wires, and the covering portion is made of a synthetic resin. The flat cable 2 is formed to be sufficiently longer than the sliding distance of the slide sheet, and one end side 2A (shown in FIG. 2) is passed through the flat cable winding device 1 and then pulled out to the outside. The other end 2B is connected to a slide sheet side connector or the like via a protector P. In this embodiment, the case where the flat cable 2 having a plurality of core wires parallel to each other is illustrated, but the flat cable 2 may have an arbitrary cross-sectional shape, and the core wire and the insulation coating. An appropriate configuration can be selected. Moreover, although the case where the single flat cable 2 is used is illustrated in this embodiment, two or more flat cables 2 may be used in an overlapping manner.

  As shown in FIGS. 2 and 3, the flat cable winding device 1 includes a case 3 that accommodates the wound flat cable 2, a rotary table 4 that is rotatably provided in the case 3, and a rotating table 4. A plurality of (six in this embodiment) rollers 5 rotatably supported on the table 4, and a spiral spring 6 as a biasing means for biasing the rotary table 4 in the winding direction R of the flat cable 2. . The case 3 includes a lower case 3A that accommodates the rotary table 4 and the spiral spring 6, and an upper case 3B that covers the upper surface side of the lower case 3A and closes the case 3 in a hollow shape, and has a substantially central portion in the lower case 3A. A center shaft 7 is provided upright for pivotally supporting the rotary table 4.

  As shown in FIG. 3, the lower case 3 </ b> A is installed flat on the floor of the vehicle, and a bottom portion 31 facing the floor, and a peripheral wall 32 erected in a substantially cylindrical shape along the outer periphery of the bottom portion 31, And a cable lead-out portion 33 for leading the other end of the flat cable 2 to the outside. The upper case 3B includes a substantially disk-shaped top surface portion 35 and a suspended wall 36 that is suspended in a substantially cylindrical shape along the outer periphery of the top surface portion 35 and overlaps the peripheral wall 32 of the lower case 3A. .

  As shown in FIG. 3, the central shaft 7 is erected on the inner surface of the bottom 31 of the lower case 3 </ b> A and is formed in a substantially cylindrical shape as a whole, and the turntable 4 is rotatably supported by the periphery 7 </ b> A. The central shaft 7 has a slit 71 cut from the periphery 7A toward the center and opened in the upper surface 7B, a locking groove 72 cut in a direction perpendicular to the slit 71 and opened in the upper surface 7B, Is formed. The slit 71 is inserted and locked through one end side 2A of the flat cable 2. The one end side 2A of the flat cable 2 inserted through the slit 71 communicates with the slit 71 and penetrates the bottom 31 of the lower case 3A. After being inserted into the through-hole and led out of the lower case 3A, it is connected to a floor-side connector or the like.

  As shown in FIG. 3, the cable lead-out portion 33 is provided so as to protrude from the outer surface of the peripheral wall 32 of the lower case 3 </ b> A, and one groove portion 33 </ b> A for accommodating the flat cable 2 is formed on the upper surface thereof. The groove 33A is provided so as to communicate the inside and the outside of the lower case 3A and extends linearly along the sliding direction of the protector P. By inserting the flat cable 2 into the groove 33 </ b> A, the other end 2 </ b> B of the flat cable 2 is routed between the inside and the outside of the case 3. Further, the flat cable 2 is guided along the groove 33 </ b> A when the flat cable 2 is wound inside the case 3 or drawn out to the outside of the case 3.

  As shown in FIG. 3, the rotary table 4 includes a table main body 41 formed in a disk shape, and a plurality of rotary tables 4 that are provided on the upper surface of the table main body 41 and rotatably support a plurality of rollers 5 (this embodiment). Then, six guide portions 42 are integrally provided. The table main body 41 is formed with a hole 43 through which the central shaft 7 is inserted at the center position.

  As shown in FIG. 3, the plurality of guide portions 42 are formed so as to protrude from the upper surface of the table main body 41, and are arranged in parallel along the circumferential direction of the table main body 41 at equal intervals. Here, the protruding direction of the guide portion 42 indicates the vertical direction and the height direction of the flat cable winding device 1.

  Further, as shown in FIG. 5, each of the plurality of guide portions 42 includes a pair of support portions 42 </ b> A that support each roller 5 so as to be rotatable and slidable in the radial direction of the table body 41. Yes. Each of the pair of support portions 42 </ b> A is formed in a columnar shape that is semicircular when viewed from above, and is opposed to an opposing surface 44 that is spaced apart in a direction orthogonal to the radial direction of the table body 41, and both sides of the opposing surface 44. And a sliding surface 45 that is configured by a curved surface continuous with the edge and is slid on the inner peripheral surface of the roller 5. The pair of opposed surfaces 44 are provided so as to extend in a direction parallel to the radial direction of the table body 41, and the separation dimension between the pair of support portions 42 </ b> A, that is, the separation dimension of the opposed surface 44 is the shaft portion of the roller 5. 53, the dimension of the facing surface 44 in the extending direction is larger than the inner diameter dimension of the roller 5, and the maximum dimension of the guide portion 42 in the facing direction, that is, between the sliding surfaces 45. Is formed so as to be substantially equal to the inner diameter of the roller 5. In a state where the shaft portion 53 of the roller 5 is inserted between these facing surfaces 44, the shaft portion 53, that is, the roller 5 is provided so as to be rotatable and slidable in the radial direction of the table main body 41.

  As shown in FIGS. 3 and 4, each of the plurality of rollers 5 includes a disk part 51, a peripheral wall 52 erected in a cylindrical shape from the periphery of the disk part 51, and the same direction as the peripheral wall 52 from the disk part 51. A shaft portion 53 erected in a columnar shape is integrally provided. The peripheral wall 52 is formed so that its curvature is smaller than the curvature of the sliding surface 45 of the guide portion 42. The plurality of rollers 5 are supported by the pair of support portions 42 </ b> A by inserting the shaft portion 53 between the pair of support portions 42 </ b> A, and the flat cable 2 is wound around the outer periphery of the plurality of rollers 5. It has become. Of the plurality of rollers 5, one roller 5 is a reversing roller 5A (shown in FIG. 2) that reverses the flat cable 2 introduced into the case 3 from the groove 33A toward the central axis 7. .

  The spiral spring 6 is a spiral spring formed by winding an elastic metal in a spiral shape. The spiral spring 6 has an end portion on the center side inserted and fixed in a locking groove 72 of the center shaft 7, and an end portion on the outer peripheral side is locked on the lower surface of the rotary table 4, so that the rotary table 4 is connected to the flat cable. 2 in the winding direction R. That is, the rotating table 4 is rotated by a predetermined number in the direction opposite to the winding direction R to store the urging force in the spiral spring 6, and then the flat cable 2 reversed by the reversing roller 5 </ b> A is placed on the outer periphery of the plurality of rollers 5. By winding, the rotary table 4 is biased in the winding direction R by the restoring force of the spiral spring 6, and the flat cable 2 is wound around the central shaft 7 and the rotary table 4 by this biasing force.

  Next, the operation of the flat cable winding device 1 will be described. The flat cable 2 is wound around one end side of the flat cable 2 engaged with the slit 71 along the periphery 7A of the central shaft 7, reversed by the reversing roller 5A, and led out of the case 3 from the groove 33A. As described above, when the rotary table 4 is rotated in the winding direction R by the restoring force of the spiral spring 6, the flat cable 2 is connected to the outer periphery of the central shaft 7 and the outer periphery of the plurality of rollers 5 of the rotary table 4. Is wound up. The flat cable 2 is led out from this winding state, and the flat cable 2 is sent out from the outer periphery of the central shaft 7 to the outer periphery of the plurality of rollers 5, so that the flat cable 2 is sequentially fed out of the case 3. Yes.

  Specifically, as shown in FIG. 6, when winding the flat cable 2, a plurality of rollers 5 are moved radially inward of the rotary table 4 by being pushed by the flat cable 2, and each roller 5 is centered on the center axis. 7 is pressed around. In this state, the flat cable 2 is wound around the central shaft 7, so that the slack of the flat cable 2 generated around the central shaft 7 can be suppressed. When the flat cable 2 is unwound, the roller 5 is rotated while winding the flat cable 2, and the flat cable 2 unwound from the periphery 7 </ b> A of the central shaft 7 is forced to the outer peripheral side of the roller 5. Since it is sent out, slackness of the flat cable 2 that occurs around the center axis 7A can be suppressed.

  In such a flat cable winding device 1, the rotary table 4 has a plurality of guides formed on the rotary table 4 so as to protrude from the upper surface of the table body 41 at each position where the roller 5 is disposed. And a plurality of rollers 5 for winding the flat cable 2 from the outside of the case along the circumferential direction of the table body 41, and a plurality of guide portions. Since each of the rollers 5 rotatably supports each roller 5 and slides and guides each roller 5 in the radial direction of the rotary table 4, the flat cable winding device 1 can be downsized in the vertical direction.

  In the embodiment described above, the pair of support portions 42A has the opposing surface 44 and the sliding surface 45 and is formed in a block shape, but the present invention is not limited to this, and the support portion 42A. May be composed of a standing plate having a facing surface 44 provided upright from the table body 41. In this case, the sliding surface 45 may be omitted.

  The flat cable winding device 1 of the present invention is flattened by a tensile load having a maximum value of 20 Newtons or less as shown in FIG. 7 by the cooperation of the guide portion 42, the roller 5, the spiral spring 6 and the central shaft 7. The other end 2B of the cable 2 can be fed out. FIG. 7 is a graph showing the relationship between the length of the fed flat cable and the tensile load in one embodiment of the flat cable winding device of the present invention.

  Specifically, by reducing the spring constant of the spiral spring 6, the tension load necessary for pulling the other end 2B of the flat cable 2 is reduced. Further, since the roller 5 is guided by the guide portion 42 and rotates, the frictional force exerted on the flat cable 2 when the flat cable 2 is drawn out is reduced, and the other end 2B of the flat cable 2 is pulled. The tensile load required for the is reduced. Further, since the roller 5 is movable in the radial direction of the turntable 4, the vertical load exerted on the flat cable 2 when the flat cable 2 is drawn out is reduced, and the other end side 2B of the flat cable 2 is The tensile load necessary for pulling is reduced. The flat cable winding device 1 of the present invention can feed out the other end 2B of the flat cable 2 by a tensile load having a maximum value of 20 Newton or less by combining these actions.

  Further, the flat cable winding device 1 of the present invention can suppress the slack of the flat cable 2 that occurs around the center shaft 7 when winding the flat cable 2 or when unwinding the flat cable 2. By the way, when the flat cable 2 is wound up in a state where there is a slack, and then the flat cable 2 is unwound, in the process where the flat cable 2 is unwound, the portion where the slack is slackened changes to a fully extended state. Such a change in the shape of the flat cable 2 is one factor that causes a change in the minimum tensile load necessary for feeding the flat cable. The flat cable winding device 1 of the present invention suppresses the fluctuation range of the tensile load, more specifically, the maximum value of the tensile load by suppressing the slackness of the flat cable 2 that occurs around the center axis 7A. doing. In the flat cable winding device 1 of the present invention, the configuration that suppresses the slack of the flat cable 2 also contributes to unwinding the other end 2B of the flat cable 2 by a tensile load having a maximum value of 20 Newton or less.

  As described above, according to the present invention, a flat cable winding device in which a tensile load is suppressed, specifically, a flat cable winding device capable of feeding a flat cable by a tensile load having a maximum value of 20 Newton or less is provided. be able to. Thereby, the operator who operates a slide seat or a slide door can move a slide seat or a slide door smoothly.

Here, the features of the above-described embodiment of the flat cable winding device according to the present invention are summarized and listed in the following (1) to (5), respectively.
(1) A flat cable winding device (1) in which one end side (2A) of the flat cable (2) is wound and the other end side (2B) of the flat cable is drawn out,
The maximum value of the tensile load when the other end side of the flat cable is drawn is 20 Newton or less.
A flat cable winding device.
(2) a case (3) for housing the flat cable;
A central axis (7) provided in the case for fixing one end of the flat cable, and a rotary table (4) provided rotatably about the central axis;
A plurality of rollers (5) for winding the flat cable from the outside of the case;
Biasing means (spiral spring 6) for biasing the rotary table in the winding direction of the flat cable;
With
The rotary table is integrally provided with a disk-shaped table body (41) and a plurality of guide portions (42) formed to protrude from the upper surface of the table body,
In the table body, a plurality of rollers for winding the flat cable from the outside of the case are provided side by side along the circumferential direction of the table body,
The plurality of guide portions are provided at respective positions where the rollers are disposed, support the rollers rotatably, and slide-guide the rollers in the radial direction of the rotary table. The flat cable winding device according to (1) above.
(3) Each of the rollers integrally has a shaft portion (53) as a rotation center,
Each of the guide portions has a pair of support portions (42A) for inserting the shaft portion between each other and rotatably supporting the shaft portion,
The flat cable winding device according to (2), wherein the pair of support portions are provided to extend in a direction parallel to a radial direction of the rotary table.
(4) The roller includes a disk part (51), a peripheral wall (52) erected in a cylindrical shape from the periphery of the disk part, and the shaft erected in a columnar shape from the disk part in the same direction as the peripheral wall. And the pair of support portions are opposed to each other in a direction orthogonal to the radial direction of the rotary table, and the shaft portion is inserted between the opposed surfaces (44). And an arcuate sliding surface (45) that is continuously provided on the facing surface and slides on the inner peripheral surface of the peripheral wall;
The flat cable winding device according to (3) above, comprising:
(5) The biasing means is a mainspring.
The flat cable winding device according to any one of (2) to (4) above, wherein

DESCRIPTION OF SYMBOLS 1 Flat cable winding device 2 Flat cable 3 Case 4 Rotary table 5 Roller 6 Spiral spring (biasing means)
7 Central axis 41 Table body 42 Multiple guides

Claims (5)

A flat cable winding device in which one end side of the flat cable is wound up and the other end side of the flat cable is fed out,
The maximum value of the tensile load when the other end side of the flat cable is drawn is 20 Newton or less.
A flat cable winding device. A case for accommodating the flat cable;
A central axis that is provided in the case and fixes one end of the flat cable, and a rotary table that is rotatably provided around the central axis;
A plurality of rollers for winding the flat cable from the outside of the case;
A biasing means for biasing the rotary table in the winding direction of the flat cable;
With
The rotary table is integrally provided with a disk-shaped table main body and a plurality of guide portions formed to protrude from the upper surface of the table main body,
In the table body, a plurality of rollers for winding the flat cable from the outside of the case are provided side by side along the circumferential direction of the table body,
The plurality of guide portions are provided at respective positions where the rollers are disposed, support the rollers rotatably, and slide-guide the rollers in the radial direction of the rotary table. The flat cable winding device according to claim 1. Each of the rollers integrally has a shaft portion as a rotation center,
Each of the guide portions includes a pair of support portions that insert the shaft portion between each other and rotatably support the shaft portion,
The flat cable winding device according to claim 2, wherein the pair of support portions are provided so as to extend in a direction parallel to a radial direction of the rotary table. The roller is configured integrally with a disk part, a peripheral wall standing in a cylindrical shape from the periphery of the disk part, and the shaft part standing in a columnar shape in the same direction as the peripheral wall from the disk part. The pair of support portions are respectively provided opposite to a direction orthogonal to the radial direction of the rotary table, and are provided continuously with a facing surface for inserting the shaft portion therebetween, and the facing surface. An arcuate sliding surface that slides on the inner peripheral surface of the peripheral wall;
The flat cable winding device according to claim 3, further comprising: The biasing means is a spring spring.
The flat cable winding device according to any one of claims 2 to 4, wherein the winding device is a flat cable winding device.

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