JP2019213663A - Steering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steering device that suppresses a decrease in detection accuracy of biometric information of an occupant. SOLUTION: In a rim portion 16 of a steering wheel 14, a base body is covered with a covering member 26, and an electrode body 40 is arranged between the base body and the covering member 26. The electrode body 40 is spirally wound around the outer periphery of the base body, and the electrode body 40 is wound in the circumferential direction of the steering wheel 14 and is present on at least a part of the rim portion 16 in the circumferential direction. . Therefore, even if the grip position of the steering wheel 14 of the driver moves or the angle of the wrist of the driver who grips the steering wheel 14 changes, the change in the coupling capacity is suppressed. As a result, it is possible to suppress a decrease in detection accuracy of biometric information using the electrode body 40. [Selection diagram] Figure 2

Description

  The present invention relates to a steering device.

  In the electrocardiographic measuring device for a vehicle of Patent Document 1, a direct electrode attached to an outer peripheral surface of a steering wheel is connected to a ground terminal, and when the driver grips the steering wheel, the driver's skin is directly applied to the electrode. Contact.

  By providing a capacitive coupling type electrode on the steering wheel, it is possible to detect biological information such as an electrocardiogram waveform of an occupant holding the steering wheel. In the capacitive coupling type electrode, the area of the electrode facing the occupant's hand changes as the occupant's gripping position with respect to the steering wheel, the hand's orientation (bending angle of the wrist), and the like change. As a result, in the capacitive coupling type electrode, the coupling capacitance may change and the detection accuracy of biological information may decrease.

JP 2011-024903 A

  The present invention has been made in view of the above-described circumstances, and has as its object to provide a steering device that can suppress a decrease in detection accuracy of occupant biological information.

  In the steering device according to the first aspect of the present invention, the steering target is steered by being curved in the longitudinal direction, the insulating substrate being covered with an insulating covering member, and being gripped and operated by an occupant. A steering body; and an electrode portion provided between the base and the covering member, a strip-shaped conductor spirally wound around the base and provided in a longitudinal direction of the steering body.

  A steering device according to a second aspect is the steering device according to the first aspect, wherein a first conductive layer, a first insulating layer, and a second conductive layer, each of which is formed in a strip shape in the conductor, are sequentially stacked. The conductor is wound with two conductive layers facing the base.

  A steering device according to a third aspect is the steering device according to the second aspect, wherein the first conductive layer and the second conductive layer are connected to a biological information measuring device that measures occupant biological information.

  A steering device according to a fourth aspect is the steering device according to the third aspect, wherein a second insulating layer and a third conductive layer, each of which is formed in a strip shape in the conductor, are sequentially stacked on the base side of the second conductive layer. The conductor is wound with the third conductive layer facing the base, and the third conductive layer is grounded.

  In the steering device of the first aspect, the steering body is curved in the longitudinal direction, and the electrode portion is provided between the insulating base and the insulating covering member, so that the occupant grips the steering body. Thus, the occupant approaches the electrode portion, and capacitive coupling occurs.

  Here, a strip-shaped conductor is spirally wound around the base body in the electrode portion, and the conductor is provided in the electrode portion in a longitudinal direction of the steering body. For this reason, even if the occupant's gripping position on the steering body moves or the direction of the occupant's hand with respect to the steering body changes, the change in the coupling capacitance between the conductor and the occupant is suppressed. In addition, the detection accuracy of the occupant's biological information can be prevented from being reduced.

  In the steering device according to the second aspect, a strip-shaped first conductive layer, a first insulating layer, and a second conductive layer are laminated on the conductor. Further, the second conductive layer is directed toward the base, and the conductor is wound around the base.

  For this reason, in the conductor, capacitive coupling occurs between the first conductive layer and the occupant, and the base side of the first conductive layer is covered by the second conductive layer, so that the coupling capacitance generated in the first conductive layer causes disturbance. It can be suppressed from receiving.

  In the steering device according to the third aspect, the conductor is connected to the biological information measuring device, and the biological information of the occupant holding the steering body is measured by the biological information measuring device.

  Here, the first conductive layer and the second conductive layer are connected to the biological information measuring device. For this reason, the disturbance can be suppressed from being included in the biological information measured by the first conductive layer by the second conductive layer, and the disturbance can be prevented from lowering the detection accuracy of the biological information.

  In the steering device of the fourth aspect, the conductor includes the second insulating layer and the third conductive layer, the first conductive layer and the second conductive layer are connected to the biological information measuring device, and the third conductive layer is grounded. Is done.

  For this reason, the influence of disturbance from a direction different from the surface of the first conductive layer facing the occupant is suppressed by the third conductive layer. Accordingly, the biological information detected by the first conductive layer can effectively suppress the influence of disturbance, and the detection accuracy of the biological information can be improved.

FIG. 1 is a schematic configuration diagram of a main part of a vehicle according to the present embodiment as viewed from the outside in a vehicle width direction. It is a front view which shows the outline of a steering wheel. (A) is a schematic perspective view of a main part of the electrode body according to the present embodiment, and (B) is a schematic perspective view of the main part showing another example of the electrode body according to the present embodiment. . (A) and (B) are schematic sectional views along the steering wheel radial direction of a rim part, (A) shows the state where it was grasped from the vehicle width direction outside, and (B) is a vehicle rear side. 2 shows a state in which the user is gripped from the side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view of a main part of a vehicle 10 to be steered according to the present embodiment as viewed from the outside in the vehicle width direction (left side of the vehicle). In the drawings, the front of the vehicle is indicated by an arrow FR, the right side of the vehicle is indicated by an arrow HR, and the upper side is indicated by an arrow UP.

  The vehicle 10 is provided with a steering device 12 as a steering device, and the steering device 12 includes a steering wheel 14 as a steering body. FIG. 2 is a front view of the steering wheel 14 as viewed from the occupant. In the drawings, the circumferential direction of the steering wheel 14 is indicated by an arrow L.

  As shown in FIG. 2, the steering wheel 14 includes a rim portion 16 formed in an annular shape and curved in the longitudinal direction, a boss portion 18 disposed at an axis of the rim portion 16, and the rim portion 16 and the boss portion 18. And a plurality of spoke portions 20 arranged between the two. In the steering wheel 14, the rim portion 16 and the boss portion 18 are connected by a spoke portion 20 to be integrated.

  FIGS. 4A and 4B show a schematic configuration of the rim portion 16 in a sectional view along the radial direction of the steering wheel 14. 4A shows a state in which the driver holds the steering wheel 14 with the wrist substantially obliquely to the rear of the vehicle, and FIG. 4B shows the state in which the driver moves the wrist substantially to the rear of the vehicle. Shows a state in which the steering wheel 14 is gripped.

  The steering wheel 14 is provided with a metal core (not shown) forming a skeleton. As shown in FIGS. 4A and 4B, the rim portion 16 is provided with an annular rim core metal 22 as a core metal. The rim mandrel 22 is housed in a base 24 made of an insulating resin such as urethane by insert molding. The base 24 is formed in an annular shape and is curved in the longitudinal direction. It is formed in a substantially circular shape. The outer peripheral surface of the base body 24 is covered with an insulating covering member 26 made of either leather or resin, and the covering member 26 forms the outer peripheral portion of the rim portion 16 in substantially the entire circumferential direction of the steering wheel 14. are doing.

  As shown in FIG. 1, a seat 28 on which a driver as an occupant sits is attached to a vehicle body of the vehicle 10, and the seat 28 supports a seat cushion 28A on which the driver sits and a back of the driver. The seat back 28B is provided. Further, the steering device 12 is provided with a steering shaft 30, and the steering shaft 30 is supported on the vehicle body at a front side of the seat 28 so as to be rotatable around an axis. A boss portion 18 of the steering wheel 14 is fixed to a distal end portion (rear end portion of the vehicle) of the steering shaft 30. The steering wheel 14 is supported by the steering shaft 30, and can rotate integrally with the steering shaft 30. Have been.

  In the steering device 12, the driver sitting on the seat 28 grips the steering wheel 14 (the rim portion 16) and rotates the steering wheel 14, whereby the steering shaft 30 is rotated. Thus, the vehicle 10 is steered by the driver. FIG. 2 shows the steering wheel 14 at a rotational position (straight forward steering position) in a straight traveling state of the vehicle 10.

  On the other hand, as shown in FIG. 1, the vehicle 10 is provided with an electrocardiographic measuring device 32 as a biological information measuring device for detecting biological information of a driver. The electrocardiographic measuring device 32 includes a detecting unit 34, A measuring unit 36 and a recording unit 38 are provided.

  The detection section 34 is provided with electrode bodies 40 and 42 that constitute a capacitively-coupled electrode. In the present embodiment, the electrode body 40 constitutes a conductor. The electrode bodies 40 and 42 form a capacitor (capacitance) that is capacitively coupled when the driver's body surface (skin or the like) is brought close via an insulating member such as clothing. When the body surface of the driver approaches, an alternating current is equivalently passed between the driver and the driver (body surface). Each of the electrode bodies 40 and 42 is electrically connected to the measurement unit 36, and the measurement unit 36 receives a signal from the electrode bodies 40 and 42 that are approximated to be in contact with the body surface in the heartbeat of the heart. A change in ionic current (alternating current) accompanying electric activity is detected as a current signal (change in electron current).

  In addition, the driver's body surface vibrates by breathing. In each of the electrode bodies 40 and 42, when the body surface vibrates, the capacitance (capacity value) between the body surface and the body surface changes, and the current signal (electron current) detected by the measuring unit 36 changes. . For this reason, the measuring unit 36 combines (superimposes) and detects the current signal corresponding to the heartbeat and the current signal corresponding to the respiration from the electrode bodies 40 and 42. Thus, the measurement unit 36 can obtain an electrocardiogram waveform and a respiration waveform as biological information from the measured current signal. The electrocardiogram waveform and the respiratory waveform obtained by the measuring unit 36 are recorded in the recording unit 38.

  The electrode body 42 is disposed on a seat surface of a seat cushion 28A (or a seat back 28B) of the seat 28, and the electrode body 42 is covered with a seat cover (not shown). When the occupant is seated on the seat 28, the buttocks of the occupant are brought closer to the electrode body 42 through the clothes of the occupant and the seat cover of the seat cushion 28A. The two electrode bodies 42 may be provided on the seat cushion 28A, and may be opposed to the left and right parts of the driver's buttocks.

  A seat-like ground electrode 44 as a conductive member and a ground member is disposed on the seat surface of the seat cushion 28A. The ground electrode 44 is covered by a seat cover and is electrically connected to the vehicle body. (Grounded). The driver sitting on the seat 28 comes into contact with the ground electrode 44 via the skin or clothing, thereby removing static electricity and the like. The electrode body 42 and the ground electrode 44 need not be covered by the occupant-side surface with the seat cover of the seat cushion 28A.

  On the other hand, as shown in FIGS. 4A and 4B, an electrode portion 46 is formed between the base 24 and the covering member 26 on the steering wheel 14. It is formed over the entire area in the 14 circumferential directions.

  The electrode body 40 is disposed on the electrode section 46. As shown in FIG. 2, the electrode body 40 is formed in a belt shape, and the electrode body 40 is spirally wound around the outer peripheral portion of the base body 24 in the entire circumferential direction of the steering wheel 14 (FIG. A) and FIG. 4 (B)).

  Thereby, substantially the entire outer peripheral surface of the base 24 is covered with the electrode body 40, and the electrode body 40 is covered with the covering member 26. When the driver grips the steering wheel 14 and the driver's hand comes into contact with the covering member 26, the driver's hand approaches the electrode body 40, and is located between the driver's hand and the electrode body 40. Capacitive coupling occurs with the covering member 26 interposed.

  Here, as the electrode body 40, a band-shaped (tape-shaped) conductive material (one-layer structure of the electrode layer 50 described below) may be used. Further, the electrode body 40 may have a laminated structure in which a plurality of conductive materials each formed in a strip shape and a strip-shaped insulating material interposed between the conductive materials are stacked. 3 (A) and 3 (B) show a perspective view of a main part of electrode body 40 according to the present embodiment, and FIG. 3 (A) shows an electrode body having a five-layer structure. 40A is shown, and FIG. 3B shows an electrode body 40B having a three-layer structure.

  As shown in FIG. 3B, the electrode body 40B includes an electrode layer 50 as a first conductive layer and a driven shield layer 52 as a second conductive layer, and is provided between the electrode layer 50 and the driven shield layer 52. , A strip-shaped first insulating layer 54 is disposed. The electrode body 40B has a three-layer structure in which an electrode layer 50, a first insulating layer 54, and a driven shield layer 52 are sequentially stacked.

  In the electrode body 40B, the width W1 of the electrode layer 50 is smaller (narrower) than the width W2 of the first insulating layer 54, and the width W3 of the driven shield layer 52 is larger than the width W2 of the first insulating layer 54 ( (W1 <W2 <W3). Thus, in the electrode body 40B, the first insulating layer 54 protrudes on both sides of the electrode layer 50 in the width direction, and the driven shield layers 52 protrude on both sides of the first insulating layer 54 in the width direction. In the electrode body 40B, the exposed area (surface area) of the electrode layer 50 is maximized in a front view as viewed from the electrode layer 50 side.

  The electrode body 40B is spirally wound around the outer periphery of the base 24 with the driven shield layer 52 facing the base 24 at the rim 16 of the steering wheel 14. The electrode body 40 </ b> B is used by electrically connecting the electrode layer 50 and the driven shield layer 52 to the measuring unit 36.

  As shown in FIG. 3A, the electrode body 40A includes an electrode layer 50 as a first conductive layer, a driven shield layer 52 as a second conductive layer, and a ground plane layer 56 as a third conductive layer. I have. In the electrode body 40A, a band-shaped first insulating layer 54 is disposed between the electrode layer 50 and the driven shield layer 52, and a band-shaped second insulating layer 54 is formed between the driven shield layer 52 and the ground plane layer 56. An insulating layer 58 is provided. The electrode body 40A has a five-layer structure in which an electrode layer 50, a first insulating layer 54, a driven shield layer 52, a second insulating layer 58, and a ground plane layer 56 are sequentially stacked.

  In the electrode body 40A, the width W4 of the second insulating layer 58 is larger (wider) than the width W3 of the driven shield layer 52, and the width W5 of the ground plane layer 56 is larger (wider) than the width W4 of the second insulating layer 58. (W1 <W2 <W3 <W4 <W5). Thus, in the electrode body 40A, the first insulating layer 54 protrudes on both sides of the electrode layer 50 in the width direction, and the driven shield layers 52 protrude on both sides of the first insulating layer 54 in the width direction. In the electrode body 40A, the second insulating layer 58 protrudes on both sides in the width direction of the driven shield layer 52, and the ground plane layer 56 protrudes on both sides in the width direction of the second insulating layer 58. Further, in the electrode body 40A, the exposed area of the electrode layer 50 is maximized in a front view as viewed from the electrode layer 50 side.

  In the present embodiment, the electrode body 40A is used as the electrode body 40, and the electrode body 40A is formed by helically winding the ground plane layer 56 on the outer periphery of the base 24 with the ground plane layer 56 facing the base 24. It is attached to the wheel 14 (rim 16). When the electrode body 40A is spirally wound around the base 24, the driven shield layer 52 of the electrode body 40A and the ground plane layer 56 need not overlap, and even if the width direction ends of the ground plane layer 56 overlap. Good. From here, the electrode body 40A is tightly wound such that the ends in the width direction of the ground plane layer 56 overlap.

  As a result, the electrode body 40A is attached to the steering wheel 14 such that the electrode layer 50 exists at least partially in the circumferential direction of the rim portion 16 in the entire circumferential direction of the steering wheel 14. In the electrode body 40A, the electrode layer 50 and the driven shield layer 52 are electrically connected to the measuring unit 36. In the electrode body 40A, the ground plane layer 56 is electrically connected (grounded) to the vehicle body.

  On the other hand, for the electrode body 42, a sheet-like conductive material (single-layer structure) may be used. Further, the electrode body 42 may have a three-layer structure or a five-layer structure in which a conductive material and an insulating material each formed in a sheet shape are laminated.

  In the electrode body 42 having a three-layer structure, each of an electrode layer as a first conductive layer, a first insulating layer, and a driven shield layer as a second conductive layer is formed in a sheet shape and laminated. The three-layer electrode body 42 has such a size that the first insulating layer protrudes from the periphery of the electrode layer, and the driven shield layer protrudes from the periphery of the first insulating layer. The electrode layer and the driven shield layer may be electrically connected to the measuring unit 36 so that the electrode layer and the driven shield layer are disposed on the seat surface of the seat cushion 28 </ b> A of the seat 28.

  In the five-layer electrode body 42, in addition to the three-layer structure, each of the second insulating layer and the ground plane layer as the third conductive layer is formed in a sheet shape, and the second insulating layer and the ground plane layer are driven shielded. The layers are sequentially laminated on the side opposite to the electrode layer. The five-layer electrode body 42 has a size such that the second insulating layer protrudes from the periphery of the driven shield layer, and the ground plane layer protrudes from the periphery of the second insulating layer. What is necessary is just to arrange | position on the upper surface of the seat cushion 28A of the seat 28 so that it may become. In the five-layer electrode body 42, the electrode layer and the driven shield layer may be electrically connected to the measuring unit 36, and the ground plane layer may be electrically connected (grounded) to the vehicle body.

The operation of the present embodiment will be described below.
In the vehicle 10, a driver sitting on a seat 28 grips the steering wheel 14 to perform steering. An electrode body 40A is arranged on the rim 16 of the steering wheel 14 between the base 24 and the covering member 26, and when the driver grips the steering wheel 14 (rim 16), the driver's Capacitive coupling occurs between the hand and the electrode body 40A (electrode layer 50). The capacitance due to the capacitive coupling changes according to the area of the electrode layer 50 where the driver's hand is in close proximity.

  By the way, when the steering wheel 14 is rotated, the gripping position of the driver moves in the circumferential direction of the steering wheel 14. Also, as shown in FIGS. 4A and 4B, the angle of the wrist when the driver grips the steering wheel 14 may change, and the angle of the wrist of the driver changes. The gripping position moves in the circumferential direction of the rim portion 16.

  Here, the electrode body 40 </ b> A is spirally wound between the base 24 and the covering member 26 and is wound around the entire area in the circumferential direction of the steering wheel 14. For this reason, the electrode layer 50 of the electrode body 40 </ b> A is present at least partially in the circumferential direction of the rim portion 16 in the entire circumferential direction of the steering wheel 14.

  Accordingly, even when the driver's gripping position moves in the circumferential direction of the steering wheel 14 when the steering wheel 14 is rotated, the area of the electrode layer 50 facing the driver's hand changes in the electrode body 40A. Can be suppressed. Further, even when the angle of the driver's hand changes when gripping the steering wheel 14, it is possible to suppress a change in the area of the electrode layer 50 facing the driver's hand in the electrode body 40A.

  Therefore, in the electrode body 40A, when the driver performs the rotation operation of the steering wheel 14 or the like, the change in the coupling capacitance between the driver's hand and the electrode layer 50 is suppressed.

  The electrode body 40A is connected to a measuring unit 36 of the electrocardiographic measuring device 32. The measuring unit 36 includes an electrode body 40A arranged on the driver's hand side with the driver's heart in between, and the driver's hand. The electrode body 42 arranged on the buttocks side is connected. The measuring unit 36 measures a current signal (change in coupling capacity) that changes according to the driver's heartbeat and breathing, and measures the coupling capacitance between the electrode layer 50 and the driver's hand in the electrode body 40A. By suppressing the change, a decrease in the accuracy of detecting the current signal is suppressed.

  On the other hand, in the electrode body 40A, the driven shield layer 52 is disposed on the electrode layer 50 side of the base 24. In the electrode body 40A, the electrode layer 50 and the driven shield layer 52 are connected to the measuring unit 36. The covering member 26 is disposed on the steering wheel 14, and the covering member 26 is interposed between the electrode layer 50 and the driver's hand. Therefore, the reactance (AC resistance) between the electrode layer 50 and the driver's hand is high, and signal attenuation occurs in the capacitive coupling portion. In order to suppress the signal attenuation in the capacitive coupling unit, it is necessary to increase (increase) the input impedance of the measuring unit 36. However, by increasing the input impedance, disturbance from the surroundings is likely to be mixed as a noise signal (S / N ratio decreases).

  Here, the electrode body 40A is provided with a driven shield layer 52 on the opposite side of the electrode layer 50 from the driver's hand.

  Further, a noise signal is mixed in the current signal of the driven shield layer 52 as in the case of the electrode layer 50. From this, in the measuring unit 36, the noise component can be removed from the current signal of the electrode layer 50 by using the current signal of the driven shield layer 52, so that the S / N ratio in the current signal of the electrode layer 50 can be increased, High-precision measurement of biological information becomes possible.

  Further, a ground plane layer 56 is arranged on the electrode body 40A on the opposite side of the driven shield layer 52 from the electrode layer 50, and the ground plane layer 56 is grounded to the vehicle body. For this reason, in the electrode body 40A, the parasitic capacitance generated between the electrode layer 50 and the rim core 22 or the like can be suppressed, and it is possible to prevent the parasitic capacitance from disturbing and lowering the S / N. The S / N ratio of the 50 current signals can be effectively improved.

  As a result, in the electrode body 40A connected to the measuring unit 36, the ground plane layer 56 suppresses noise from entering the electrode layer 50 and the driven shield layer 52 from the rim core 22. Further, in the electrode body 40A, the driven shield layer 52 suppresses the entry of noise (noise signal) from the ground plane layer 56 to the electrode layer 50. Further, the electrode body 40A can suppress (noise removal) a noise signal included in the current signal of the electrode layer 50 in the measuring unit 36 by using the current signal of the driven shield layer 52. In addition, since the driven shield layer 52 is disposed between the electrode layer 50 and the ground plane layer 56 in the electrode body 40A, the leakage current from the electrode layer 50 to the ground plane layer 56 can be reduced. Signal attenuation at 50 is more effectively suppressed.

  Therefore, the measuring unit 36 can acquire an electrocardiogram waveform and a heartbeat waveform from the current signal of the electrode layer 50 with high accuracy by using the electrode body 40A. Moreover, since the ground plane layer 56 is provided on the electrode body 40A in addition to the driven shield layer 52, the ground plane layer 56 functions as a double seal against disturbance (noise), so that the height is higher. An S / N ratio can be secured. Thereby, the measuring unit 36 can measure the electrocardiographic signals (electrocardiogram waveform and heartbeat waveform), which are minute signals, with higher accuracy. In addition, in the measurement unit 36, since the electrode body 42 has a three-layer structure or a five-layer structure, an electrocardiogram waveform and a heartbeat waveform can be acquired with high accuracy from the current signals of the electrode layers of the electrode body 42.

  Here, since the frequency component of the respiratory vibration is lower than the frequency component of the electrocardiogram (electrocardiogram waveform), the measuring unit 36 uses the current signal of the electrode body 40A and the current signal of the electrode body 42 to calculate the frequency component of the respiratory vibration and the electrocardiogram waveform. The respiratory waveform can be obtained by separating the frequency components of Further, the measurement unit 36 can obtain an electrocardiogram waveform by performing a filtering process on the frequency component of the electrocardiogram waveform.

  Thus, in the electrocardiographic measurement device 32, by using the electrode body 40A provided on the steering wheel 14, the biological information on the heartbeat and electrocardiogram of the driver performing the driving operation of the vehicle 10 can be acquired with high accuracy.

  In the present embodiment, the electrode body 40 provided on the steering wheel 14 is connected to the electrocardiographic measuring device 32 and used for measuring the driver's heartbeat and the like. However, a contact detection device may be used as the biological information detection device, and the electrode body may be connected to the contact detection device. This makes it possible to accurately detect whether or not the driver is holding the steering body as the driver's biological information. In this case, the electrode body may have a single-layer structure, a three-layer structure, or a five-layer structure. By using an electrode body having a three-layer structure or a five-layer structure, the coupling capacitance can be appropriately detected, and contact of the driver with the steering body can be detected with high accuracy.

  Further, in the present embodiment, the electrode body 40A (40) is spirally wound around the base 24 and wound around the entire area of the steering wheel 14 in the circumferential direction. However, it is sufficient that the electrode body is spirally wound around at least a region gripped by the occupant in the circumferential direction of the steering body, and the electrode body may be wound around a part of the steering body in the circumferential direction. .

10 Vehicle (steering target)
14 Steering wheel (steering body)
32 Electrocardiographic measuring device (biological information measuring device)
40 (40A, 40B) Electrode body (conductor)
50 electrode layer (first conductive layer)
52 Driven shield layer (second conductive layer)
54 First insulating layer 56 Ground plane layer (third conductive layer)
58 Second insulating layer

Claims (4)

A steering body that is curved in the longitudinal direction, an insulating base is covered with an insulating covering member, and a steering target is steered by being gripped and operated by an occupant;
Between the base and the covering member, a strip-shaped conductor is spirally wound around the base and provided in the longitudinal direction of the steering body;
Steering device equipped with.   A first conductive layer, a first insulating layer, and a second conductive layer, each having a strip shape in the conductor, are sequentially stacked, and the conductor is wound with the second conductive layer facing the base. The steering device according to claim 1, wherein   The steering device according to claim 2, wherein the first conductive layer and the second conductive layer are connected to a biological information measuring device that measures occupant biological information. A second insulating layer and a third conductive layer, each of which is formed in a strip shape in the conductor, are sequentially stacked on the base side of the second conductive layer, and the third conductive layer is directed toward the base side to form the conductor. The steering device according to claim 3, wherein the third conductive layer is grounded while being wound.