JP4191148B2 - Spiral cable device - Google Patents

Description

  The present invention relates to, for example, a spiral cable device that is attached to a steering shaft of a vehicle and is used to control a correspondence relationship according to the operation amount of a steering wheel and the vehicle speed of a steering angle of a steering wheel.

  As an example, the spiral cable device is attached to a steering shaft of a vehicle, and is used to control a correspondence relationship according to the operation amount of the steering wheel and the vehicle speed of the steering angle of the steering (see, for example, Patent Document 1). Such a spiral cable device includes a stator having a cylindrical housing structure, a rotator provided in a relatively rotatable manner inside the stator, one end connected to the rotator and wound around the rotator, and the other end A flexible flat cable connected to the stator is provided.

On the other hand, the steering shaft of the vehicle includes an upper steering shaft and a lower steering shaft. The spiral cable device is attached to the upper steering shaft, and then connects the upper steering shaft and the lower steering shaft. Therefore, when the steering is adjusted to the neutral position of the steering wheel where the vehicle keeps going straight, the flexible flat cable of the spiral cable device is wound in a neutral state so that it can rotate equally in both the left and right rotation directions of the steering wheel. It is necessary to keep. In other words, it is necessary to attach the spiral cable device to the steering shaft of the vehicle and temporarily fix the stator and rotator of the spiral cable at the neutral position until the steering shaft is assembled in the neutral state. It is known to use a fixing pin for temporarily fixing the rotator to the stator for this temporary fixing (see, for example, Patent Document 2).
Japanese Patent Laying-Open No. 2003-324835 (page 3-4, FIG. 1) Japanese Utility Model Publication No. 3-39284 (page 6-9, Fig. 2)

  When the upper steering shaft to which the spiral cable device is attached is connected to the lower steering shaft, for example, the rotator may be forcibly moved during assembly work on the vehicle assembly line. At this time, a force is applied in the direction in which the fixing pin is gradually removed in accordance with the movement of the rotator, and the fixing pin may eventually come off. In this case, the upper steering shaft is connected to the lower steering shaft while the neutral deviation of the spiral cable device is generated, and it is necessary to remove the spiral cable device from the steering shaft again and to reassemble it.

  An object of the present invention is to provide a spiral cable device that does not cause neutral displacement of the spiral cable device when the spiral cable device is assembled to a steering shaft of a vehicle, for example.

In order to solve the above-described problems, a spiral cable device according to the present invention includes:
A stator having a cylindrical housing structure, a cylindrical rotator provided on the inside of the stator so as to be relatively rotatable about the central axis of the stator, and one end connected to the rotator and wound around the rotator In a spiral cable device provided with a flexible flat cable that is rotated and the other end connected to the stator, and a fixing pin that temporarily fixes the stator to the rotator and makes the relative rotation impossible.
A fixing pin insertion hole for inserting the fixing pin is formed in an outer peripheral portion of the stator, and a tip end portion of the fixing pin enters the stator through the fixing pin insertion hole. ,
In the rotator, a rotator peripheral wall portion is formed over the entire circumference in the circumferential direction, and a fixing pin insertion hole into which a tip portion of the fixing pin enters is formed in a part of the rotator peripheral wall portion,
The fixing pin has a shape bent into an L-shape and is formed of a plate body having a knob portion and a temporary fixing, and is locked to a side portion in the width direction at a distal end side of the temporary fixing portion of the fixing pin. A projecting part is formed, and an elongated slit part that forms a longitudinal direction along the insertion direction of the fixing pin is formed in the vicinity of the engaging projecting part, whereby a doubly supported beam part provided with the engaging projecting part is formed. Formed,
The stator is formed with a stator peripheral wall portion having a height that is a predetermined range in the circumferential direction,
Between the stator peripheral wall portion and the rotator peripheral wall portion, a gap into which the locking projection of the fixing pin is fitted is formed,
The locking projection fits into a gap between the stator peripheral wall and the rotator peripheral wall in a state where the fixing pin is completely inserted into the fixing pin insertion hole and the fixing pin insertion hole. It is characterized by having.

A locking projection that forms the locking portion of the fixed pin is provided in a part of the flexible double-supported beam structure formed by the slit portion of the fixing pin, so that the locking projection is formed in the gap between the rotator and the stator. For example, when the rotator is moved in the vertical and horizontal directions or in the rotational direction when the upper and lower steering shafts are connected to each other, the fixing pin does not fall out, and the spiral cable device is used until a predetermined vehicle assembly process. Can be neutral.
Further, by fitting the locking projection into the gap between the rotator and the stator, the stator can be surely temporarily fixed to the rotator so that relative rotation is impossible.
In addition, the fixing pin is bent into an L shape and is made of a plate body having a knob and a temporary fixing, so that the fixing pin can be inserted and engaged with the upper stator and the rotator by the knob, or the fixing pin can be While removing from the stator and rotator, the upper stator and rotator are temporarily fixed by the temporary fixing portion.

The spiral cable device according to claim 2 of the present invention is the spiral cable device according to claim 1,
The stator includes an upper stator and a lower stator, and a fixed pin insertion portion provided with the fixed pin insertion hole is formed in a part of an upper portion of the outer periphery of the upper stator, and an inner edge of the fixed pin insertion portion The tip of the fixing pin is inserted into the part, and the tip of the fixing pin enters the inside of the upper stator through the fixing pin insertion hole of the upper stator,
The stator peripheral wall portion is formed at a position where the fixing pin insertion portion of the upper stator is formed ,
A flange portion extending outward in the radial direction is formed at an upper portion of the rotator, and the rotator peripheral wall portion is formed over the entire circumferential direction on the proximal end side of the flange portion,
The base end side of the temporary fixing portion is provided with a protruding portion on both sides, and the protruding side portion of the protruding portion is formed obliquely or in an arc shape so that the inclination degree matches the curvature of the outer peripheral wall portion of the upper stator. And
A thinned portion with a reduced plate thickness is formed on the proximal end side of the temporary fixing portion,
A thick guide portion is formed at a substantially central portion in the longitudinal direction of the temporary fixing portion,
The tip end portion of the temporary fixing portion is formed in an arc shape having a curvature that matches an arc-shaped butting portion formed in the bottom portion of the fixing pin insertion hole.

The base end side of the temporary fixing portion is provided with overhang portions on both sides, and the overhang side portion of the overhang portion is formed obliquely or in an arc shape so that the inclination degree matches the curvature of the outer peripheral wall portion of the upper stator. Therefore, the fixing pin can be positioned exactly on the upper stator when temporarily fixing the fixing pin.
In addition, since the thick guide portion is formed at a substantially central portion in the longitudinal direction of the temporary fixing portion, the temporary fixing portion is slidably engaged with the inner edge of the fixed pin insertion portion, and the tip of the temporary fixing portion of the fixed pin is It can be smoothly inserted into the fixing pin insertion hole of the upper stator.

Moreover, the spiral cable device according to claim 3 of the present invention is the spiral cable device according to claim 2 ,
The locking projection has a first rising portion with a small rising degree with respect to the insertion direction on the insertion direction side of the fixing pin in the clearance direction side, and a removal direction side of the fixing pin from the clearance. And a second rising portion having a degree of rising larger than that of the first rising portion.

By forming the locking projections in this way, the locking projection can be easily fitted into the gap between the rotator and the stator and can be prevented from coming out of the gap.

  According to the present invention, since the locking portion of the fixing pin is fitted in the gap between the rotator and the stator, for example, even if the rotator is moved in the vertical and horizontal directions or in the rotational direction when the upper and lower steering shafts are connected, A spiral cable device can be provided in which pins do not fall out.

  Hereinafter, a spiral cable device according to an embodiment of the present invention will be described. As shown in FIG. 1, a spiral cable device 1 according to an embodiment of the present invention includes an upper stator 20 and a lower stator 30 that form a cylindrical stator 10 by being assembled together, and the stator 10 inside the stator 10. A flexible member that connects a cylindrical rotator 40 that can be rotated about 10 axes, a mating connector (not shown in FIG. 1) provided on the upper stator 20, and mating connectors 46 and 47 provided on the rotator 40. A flat cable 50 and a fixing pin 100 for temporary fixing that disables relative rotation of the stator 10 and the rotator 40 are provided.

  FIG. 2 is a plan view of a state in which the spiral cable device 1 is completed by assembling these components. 3 is a cross-sectional view of the spiral cable device 1 shown in FIG. 2 cut along the diameter direction. 4 is a bottom view of the spiral cable device 1 shown in FIG. As is clear from these drawings, the flexible flat cable 50 that electrically connects the stator 10 and the rotator 40 is provided with two mating connectors 46 and 47 provided on the rotator 40 at one end of the flexible flat cable 50. The two connectors 56 and 57 are fitted and wound around the outer periphery of the rotator 40, and the connector 58 (see FIG. 3) provided at the other end of the flexible flat cable 50 is connected to the inner peripheral surface of the upper stator 20. The mating connector 28 is fitted to a part. The flexible flat cable 50 is wound so that the rotator 40 can be rotated about the same angle in the clockwise direction and the counterclockwise direction with respect to the stator 10 by the same angle. It is wound.

  As shown in FIG. 1, the upper stator 20 and the lower stator 30 constituting the stator 10 are arranged around the lower stator 30 on engagement protrusions 20 a formed at predetermined intervals in the circumferential direction at the lower end of the outer periphery of the upper stator 20. The engaging pieces 30a formed at predetermined intervals in the direction engage with each other so that the cylindrical stators 10 can be assembled in a configurable manner. The upper stator 20 and the lower stator 30 are made of a resin material such as PBT (polybutylene terephthalate) resin. In addition, a bracket 26 extends downward from the stator 26 on the outer peripheral portion facing the mating connector 28 formed on the inner peripheral portion of the upper stator 20. Includes a connector 27 connected to the other end of the lead wire electrically connected to the flexible flat cable 50 described above. As a result, for example, power can be supplied and signals can be transmitted to the spiral cable device 1 via the wire harness of the vehicle body.

  A fixed pin insertion portion 21 (see FIG. 1) for inserting the fixed pin 100 is formed in a part of the upper portion of the outer peripheral portion of the upper stator 20. The fixed pin insertion portion 21 has a square C shape when viewed from above, and the distal end portion of the fixed pin 100 is inserted into the inner edge of the square C shape, and the upper stator 20 (not shown in FIG. 1) is inserted. The distal end portion 110a (see FIG. 5) of the fixed pin 100 enters the upper stator 20 through the fixed pin insertion hole 23 (see FIG. 8). Further, a stator peripheral wall portion 24 (see FIG. 1) having a height in the circumferential direction is formed at a position where the fixed pin insertion portion 21 of the upper stator 20 is formed.

  The rotator 40 has a cylindrical shape made of a resin material such as POM (polyoxymethylene) resin, for example, and the rotator 40 is fitted to the upper steering shaft (not shown) on the inner peripheral surface thereof. In this case, elongated protrusions 48 for holding the rotator 40 on the upper steering shaft are formed at equal intervals in the circumferential direction.

  In addition, a flange portion 49 extending outward in the radial direction is formed at the upper portion of the rotator 40, and a rotator peripheral wall portion 44 is formed on the base end side of the flange portion 49 over the entire circumference. . A slight gap G (see FIG. 7) is formed between the stator peripheral wall portion 24 and the rotator peripheral wall portion 44 so as to fit a locking projection 113 of the fixing pin 100 described later. In addition, an elongated fixing pin insertion hole 43 (see FIG. 8) into which a distal end portion 110a of the fixing pin 100 described later enters is formed in a predetermined portion along the circumferential direction in a part of the rotator peripheral wall portion 44.

  The flexible flat cable 50 is configured by covering several flat conductors arranged in parallel with an insulating material. For example, in the case of this embodiment, the flexible flat cable 50 supplies electric power to a motor that constitutes the electric power steering device of the vehicle, and receives signals from an angle sensor and a torque sensor provided on the steering shaft of the vehicle. It plays the role of transmitting to an ECU (Electronic Control Unit) via a wire harness.

  Next, the shape of the fixing pin 100 which is a characteristic part of the present invention will be described based on the drawings. The fixing pin 100 is made of, for example, a resin material such as the above-described POM resin or hard PP (polypropylene) resin. As shown in FIGS. 1, 5, and 6, the fixing pin 100 is bent into an L shape in a side view. It is comprised from the board of the fixed width. The right vertical portion in FIG. 6 is when the operator pushes the fixing pin 100 with a finger to temporarily fix the spiral pin to the spiral cable device 1 or removes the fixing pin 100 temporarily fixed to the spiral cable device 1. It is formed as a knob part 120 used for the above. Further, the portion formed in the horizontal direction in FIG. 6, that is, the portion shown in the plan view of FIG. 5, is inserted through the fixing pin insertion hole 23 of the upper stator 20 and the fixing pin insertion hole 43 of the rotator 40 together with the stator 10. It is formed as a temporary fixing portion 110 for temporarily fixing the rotator 40.

  In addition, overhanging portions 111 are formed on both sides on the proximal end side of the temporary fixing portion 110. As is apparent from FIG. 5, the overhanging portion 111 has an overhanging side portion 111 a in the direction of inserting the fixing pin formed slightly obliquely or substantially in an arc shape. This overhanging side portion 111a serves to position the fixing pin 100 closely to the upper stator 20 during temporary fixing of the fixing pin so that the inclination of the overhanging portion 111 matches the curvature of the outer peripheral wall portion of the upper stator 20. Yes. Further, a thinned portion 112 having a reduced plate thickness is formed on the proximal end side of the temporary fixing portion 110.

  Further, a thick-wall guide portion 111b having a C-shaped planar view is formed at a substantially central portion in the longitudinal direction of the temporary fixing portion 110. This thick guide portion 111b is slidably engaged with the inner edge of the fixed pin insertion portion 21 described above, and smoothly inserts the tip of the temporary fixing portion 110 of the fixed pin 100 into the fixed pin insertion hole 23 of the upper stator 20. Plays.

  In addition, a locking projection (locking portion) 113 is formed on the side in the width direction on the distal end side of the fixing pin 100, and in the vicinity of the locking projection 113, respectively, along the insertion direction of the fixing pin 100. Thus, a long and narrow slit 114 is formed. And the width direction side part of the fixing pin 100 in which the latching convex part 113 was formed, and the elongate slit part 114 cooperate, and the flexible cantilever part 115 which forms flexibility in this part is formed. And this latching convex part 113 is formed in the center part vicinity where the bending of the both-ends beam part 115 becomes the largest. Here, as shown in FIG. 5, the locking projections 113 may be provided on both sides in the width direction of the fixing pin 100, or provided only on one side portion in the width direction of the fixing pin 100. It may be.

  The locking projection 113 has a trapezoidal shape in plan view shown in the partial enlarged views of FIGS. 5 and 9A, and the taper portion 113a in the fixing pin insertion direction rises with respect to the fixing pin insertion direction. The angle (rise degree) is formed to be small, and the taper portion 113b on the fixing pin removal direction side is formed to have a rise angle (rise degree) larger than the taper portion 113a in the insertion direction.

  Further, the tip end portion 110a of the temporary fixing portion 110 of the fixing pin 100 has a slight curvature so as to match the arc-shaped butting portion 43a (see FIG. 7) formed in the bottom portion of the fixing pin insertion hole 43 of the rotator 40. It has a circular arc shape.

  As described above, when the locking convex portion 113 is formed in the vicinity of the maximum bending portion of the flexible both-end supported beam portion 115, the fixing pin 100 is inserted into the fixing pin insertion hole 23 of the upper stator 20. The both-end supported beam portion 115 is bent so that the locking convex portion 113 passes through the fixed pin insertion hole 23 without difficulty and penetrates to the inner peripheral side of the stator.

  The locking projection 113 of the fixing pin 100 is in the state in which the fixing pin 100 is completely inserted into the fixing pin insertion hole 23 of the upper stator 20 and the fixing pin insertion hole 43 of the rotator 40 as described above. The stop protrusion 113 is fitted into the gap G between the stator peripheral wall portion 24 and the rotator peripheral wall portion 44.

  Next, a method for assembling the spiral cable device 1 configured as described above and its operation will be described. First, the connectors 56 and 57 provided at one end of the flexible flat cable 50 of the spiral cable device 1 are fitted to the mating connectors 46 and 47 of the rotator 40, the flexible flat cable is wound around the rotator, and the cable and the like. The connector 58 provided at the end is fitted to the mating connector 28 of the upper stator 20. The rotator 40 and the stator 10 are accommodated in the upper stator 20 with the rotation angle adjusted so that the neutral position is maintained in a relative rotational relationship with each other, and the lower stator 30 is fitted to the upper stator 20. Combine. That is, the flexible flat cable 50 is adjusted to an appropriate degree of winding so that the rotator 40 and the stator 10 maintain a neutral position, and then the rotation angle of the fixing pin insertion hole 43 of the rotator 40 and the fixing pin insertion hole 23 of the upper stator 20 is rotated. Thus, the rotator 40 is assembled to the stator 10 while being substantially matched.

  In this state, the rotator 40 still relatively rotates inside the stator 10, so that the fixing pin 100 is inserted into the fixing pin insertion hole 23 of the upper stator 20. When the fixing pin is inserted, a portion constituted by the locking convex portion 113 and the slit portion 114 of the fixing pin 100 forms a doubly-supported beam portion 115 so as to be bent, and on the insertion side of the locking convex portion 113. Since the rising angle of the formed taper portion 113a is small, the locking convex portion 113 can be inserted into the fixing pin insertion hole 23 of the upper stator 20 without difficulty.

  When the fixing pin 100 is further pressed toward the stator 10, as shown in FIGS. 7 and 8, the locking projection 113 of the fixing pin 100 passes through the fixing pin insertion hole 23 of the upper stator 20 and the rotator peripheral wall of the rotator 40. The front end portion 110a of the temporary fixing portion 110 of the fixing pin 100 enters the fixing pin insertion hole 43 of the rotator 40 by being inserted into the gap G formed in the stator 44 and the stator peripheral wall portion 24 of the upper stator 20. It abuts against the abutting portion 43 a of the hole 43. As a result, the stator 10 and the rotator 40 maintain this state while maintaining a neutral state.

  In this way, when the locking projection 113 of the fixing pin 100 passes through the fixing pin insertion hole 23 of the upper stator 20, the bending of the doubly supported beam portion 115 of the fixing pin 100 on which the locking projection 113 is formed is the original. The taper portion 113b having a large rising angle formed on the withdrawal side of the locking convex portion 113 of the fixing pin 100 interferes with the opening portion of the fixing pin insertion hole 23 of the upper stator 20. As a result, the fixing pin 100 once temporarily fixed is prevented from being easily removed from the stator 10.

  That is, when the spiral cable device 1 provided with such a fixing pin 100 and maintained in a neutral position is assembled to, for example, the upper steering shaft and the upper steering shaft is forcibly coupled to the lower steering shaft, Even if the arm 40 is forcibly moved, the fixing pin 100 fitted to the stator 10 and the rotator 40 will not easily fall off.

  As described above, the spiral cable device 1 is assembled to the upper steering shaft, and after the lower steering shaft is coupled to the upper steering shaft, the fixing pin 100 is removed in a neutral state in which the vehicle steering device is kept straight. At this time, a taper portion 113b having a large rising angle is formed on the withdrawal side of the locking projection 113, but the locking projection 113 of the fixing pin 100 is formed by pulling the fixing pin 100 with a large force. The both-end supported beam portion 115 is bent again and the locking projection 113 passes through the fixing pin insertion hole 23 of the upper stator 20, and the tip of the fixing pin 100 comes out of the fixing pin insertion hole 43 of the rotator 40. As a result, the fixing pin 100 can be completely removed from the rotator 40 and the stator 10 so that the stator 10 and the rotator 40 of the spiral cable device 1 can be rotated relative to each other.

  In the above-described embodiment, the locking convex portion 113 of the fixing pin 100 has a trapezoidal shape in which the rising angle (the rising degree) of the taper portion is different in the fixing pin insertion direction and the fixing pin removal direction. In this case, instead of the taper portion formed in the direction in which the fixing pin is removed, the shape is such that it rises substantially vertically and has a slight R at its tip, such as the rising portion 113c in FIG. 9B. However, it is possible to fulfill the function of the fixing pin 100.

  Further, it is not always necessary to make the locking convex part in such a shape. For example, the arc-shaped locking convex part 113d as shown in FIG. Alternatively, it may be formed on both sides (only the locking projection 113d on one side is shown in FIG. 10A). In this case, a flexible doubly-supported beam portion 115 having a longitudinal direction in the fixing pin insertion direction is formed in the vicinity of the arc-shaped locking projection.

  In this case, the rising portion on the fixing pin insertion side of the locking convex portion 113 on the arc surface is an arc-shaped rising portion 113e having a large curvature radius (small rising degree) as shown in FIG. It is good also as what is called a streamline-shaped latching convex part which makes the rising part by the side of extraction the arc-shaped rising part 113f with a small curvature radius (large rising degree). In this case, “the rising degree is large” means that the protrusion change amount of the locking projection per unit length in the longitudinal direction of the fixed pin is large, and “small rising degree” means the opposite. .

  Even with the above-described modifications, it is easy to temporarily fix and fix the fixing pin to the stator and the rotator, and once the fixing pin is temporarily fixed to the spiral cable device, the fixing pin can be easily removed from the spiral cable device. Can be made difficult to fall off.

  Although not shown here, by having a notch extending along the longitudinal direction of the fixed pin from the distal end of the fixed pin in place of the above-described slit in the portion where the locking convex portion is formed. It is also possible to form a cantilever-shaped lock portion in which the locking convex portion can be bent.

  The scope of application of the spiral cable device according to the present invention is not limited to the steering device of a vehicle, and it is a case where electrical connection is made between components that rotate relative to each other within a certain angular range, up to a predetermined assembly process. The present invention can be applied to any technical field that needs to maintain the neutral position of the spiral cable device itself.

It is a disassembled perspective view of the spiral cable apparatus concerning one Embodiment of this invention. It is a top view of the assembly | attachment state of the spiral cable apparatus shown in FIG. FIG. 3 is a side cross-sectional view of the spiral cable device shown in FIG. 1 in an assembled state. It is a bottom view of the assembly | attachment state of the spiral cable apparatus shown in FIG. It is a top view of the fixing pin of the spiral cable apparatus shown in FIG. It is sectional drawing along the longitudinal direction center part of the fixing pin shown in FIG. FIG. 6 is a partial plan view transparently showing each component in a state where the fixing pin shown in FIG. 5 is inserted into the spiral cable device. FIG. 8 is a view corresponding to FIG. 7, which is a cross-sectional view taken along the line VIII-VIII showing a central portion of the fixing pin cut along the longitudinal direction. FIG. 9 is an enlarged plan view (FIG. 9A) showing a portion of the locking projection of the fixing pin shown in FIG. 5, and a plan view showing a modification of the locking projection shown in FIG. FIG. 9B). FIG. 10A is a plan view showing a further modified example of the locking projection shown in FIG. 9A, and FIG. 10B is a plan view showing still another modified example (FIG. 10B). is there.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Spiral cable apparatus 10 Stator 20 Upper stator 20a Engagement protrusion 21 Fixed pin insertion part 23 Fixed pin insertion hole 24 Stator peripheral wall part 26 Bracket 27 Connector 28 Mating connector 30 Lower stator 30a Engagement piece 40 Rotator 43 Fixed pin insertion Hole 43a Butting section 44 Rotator peripheral wall section 46, 47 Mating connector 48 Projection section 49 Flange section 50 Flexible flat cable 56, 57, 58 Connector 100 Fixing pin 110 Temporary fixing section 110a Tip section 111 Overhang section 111a Overhang side section 111b Thickness Meat guide part 112 Meat extraction part 113 Locking convex part (lock part)
113a, 113b Taper part 113c Rising part 113d Locking convex part 113e, 113f Rising part 114 Slit part 115 Both-end supported beam part 120 Knob part

Claims (3)

A stator having a cylindrical housing structure, a cylindrical rotator provided on the inside of the stator so as to be relatively rotatable about the central axis of the stator, and one end connected to the rotator and wound around the rotator In a spiral cable device provided with a flexible flat cable that is rotated and the other end connected to the stator, and a fixing pin that temporarily fixes the stator to the rotator and makes the relative rotation impossible.
A fixing pin insertion hole for inserting the fixing pin is formed in an outer peripheral portion of the stator, and a tip end portion of the fixing pin enters the stator through the fixing pin insertion hole. ,
In the rotator, a rotator peripheral wall portion is formed over the entire circumference in the circumferential direction, and a fixing pin insertion hole into which a tip portion of the fixing pin enters is formed in a part of the rotator peripheral wall portion,
The fixing pin has a shape bent into an L-shape and is formed of a plate body having a knob portion and a temporary fixing, and is locked to a side portion in the width direction at a distal end side of the temporary fixing portion of the fixing pin. A projecting part is formed, and an elongated slit part that forms a longitudinal direction along the insertion direction of the fixing pin is formed in the vicinity of the engaging projecting part, whereby a doubly supported beam part provided with the engaging projecting part is formed. Formed,
The stator is formed with a stator peripheral wall portion having a height that is a predetermined range in the circumferential direction,
Between the stator peripheral wall portion and the rotator peripheral wall portion, a gap into which the locking projection of the fixing pin is fitted is formed,
The locking projection fits into a gap between the stator peripheral wall and the rotator peripheral wall in a state where the fixing pin is completely inserted into the fixing pin insertion hole and the fixing pin insertion hole. A spiral cable device characterized by that. The stator includes an upper stator and a lower stator, and a fixed pin insertion portion provided with the fixed pin insertion hole is formed in a part of an upper portion of the outer periphery of the upper stator, and an inner edge of the fixed pin insertion portion The tip of the fixing pin is inserted into the part, and the tip of the fixing pin enters the inside of the upper stator through the fixing pin insertion hole of the upper stator,
The stator peripheral wall portion is formed at a position where the fixing pin insertion portion of the upper stator is formed ,
A flange portion extending outward in the radial direction is formed at an upper portion of the rotator, and the rotator peripheral wall portion is formed over the entire circumferential direction on the proximal end side of the flange portion,
The base end side of the temporary fixing portion is provided with a protruding portion on both sides, and the protruding side portion of the protruding portion is formed obliquely or in an arc shape so that the inclination degree matches the curvature of the outer peripheral wall portion of the upper stator. And
A thinned portion with a reduced plate thickness is formed on the proximal end side of the temporary fixing portion,
A thick guide portion is formed at a substantially central portion in the longitudinal direction of the temporary fixing portion,
The tip end portion of the temporary fixing portion is formed in an arc shape having a curvature that matches an arc-shaped butting portion formed in a bottom portion of the fixing pin insertion hole. The spiral cable device according to 1.   The locking projection has a first rising portion with a small rising degree with respect to the insertion direction on the insertion direction side of the fixing pin in the clearance direction side, and a removal direction side of the fixing pin from the clearance. The spiral cable device according to claim 2, further comprising a second rising portion having a degree of rising larger than that of the first rising portion.

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