JP2007153002A - Cable-type steering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the inner cable from floating from a winding groove of a cylindrical member while reducing the size and weight of the cylindrical member, and to achieve improved durability and ensuring smooth winding operability. Providing equipment.
When a pulley 71 has a cable end support structure A1 that supports a cable end 73a of an inner cable 73, and the cable end 73a rotates around a rotation axis L of the supported pulley 71. In the cable type steering apparatus that winds the inner cable 73 along the winding groove 71a formed in a spiral shape on the outer peripheral surface of the pulley 71, the cable end support structure A1 is a pulley that is input to the cable end 73a. The first rotation support surface 81 is set on the cable end 73a side and the second rotation support surface 82 is set on the pulley 71 side so as to generate a support force with respect to the rotation force F in the same direction as the rotation axis L of 71. It was set.
[Selection] Figure 2

Description

  The present invention belongs to the technical field of a cable-type steering apparatus applied as a steering system for a relative position between a steering wheel and a steering mechanism and a backup mechanism for a steer-by-wire system.

Conventionally, in a cable-type steering device in which a handle and a gear box are connected by a cable, an inner cable is used for the purpose of improving durability by preventing a load from being applied to a fixed portion between a cable end and a pulley. When spirally wound around the pulley groove on the peripheral surface of the drive pulley, the inner cable is always wound around the drive pulley more than two times so that sufficient frictional force is generated between the inner cable and the drive pulley. The thing is proposed (for example, refer patent document 1).
Japanese Patent Laid-Open No. 10-59195

  However, in the conventional cable-type steering device, since the inner cable is always wound around the drive pulley more than two times, the total length of the drive pulley in the rotation axis direction becomes long, and the drive pulley In addition, there is a problem that the size of the inner cable is increased, and the total length of the inner cable is increased, resulting in an increase in weight.

  The present invention has been made paying attention to the above-mentioned problem, while preventing the inner cable from floating from the winding groove of the cylindrical member while reducing the size and weight of the cylindrical member, improving durability and smooth winding operation. An object of the present invention is to provide a cable-type steering device that can ensure the safety.

In order to achieve the above object, in the present invention, the cylindrical member has a cable end support structure for supporting the cable end of the inner cable, and rotates about the rotation axis of the cylindrical member on which the cable end is supported. In the cable-type steering device that winds the inner cable along the winding groove formed on the outer peripheral surface of the cylindrical member,
The cable end support structure has a first rotation support on the cable end side so as to generate a support force with respect to a rotational force in the same direction as the rotation axis of the cylindrical member input to the cable end. A surface is set, and a second rotation support surface is set on the cylindrical member side.

Therefore, in the cable type steering device of the present invention, when the inner cable is wound along the winding groove formed on the outer peripheral surface of the cylindrical member by the rotation of the cylindrical member, the cable end side of the cable end support structure By setting the first rotation support surface and the second rotation support surface on the cylindrical member side, a support force is generated for the rotation force in the same direction as the rotation axis of the cylindrical member input to the cable end. The
For example, when the handle is turned in the opposite direction from the left and right maximum rotation positions, the winding cable formed on the outer peripheral surface of the cylindrical member by the rotation of the inner cable on the relaxation side in the reverse direction of the cylindrical member When the cable end is freely rotated in the same direction as the rotation axis of the cylindrical member, the inner cable is lifted from the winding groove of the cylindrical member.
On the other hand, due to the support force generated between the first rotation support surface and the second rotation support surface, the rotation force in the same direction as the rotation axis of the cylindrical member input to the cable end (causes the cable to rise) Force), it is possible to prevent the inner cable from being lifted from the winding groove of the cylindrical member. By preventing the inner cable from rising, the inner cable is prevented from coming into contact with the inner surface of the casing of the cylindrical member to be damaged, and the inner cable is also prevented from being wound along the winding groove.
Further, unlike the prior art, it is not necessary to always wind the inner cable around the cylindrical member twice or more on the side where the inner cable is relaxed. Therefore, the overall axial length of the cylindrical member is shortened, and the cylindrical member is reduced in size. It is possible to reduce the weight of the inner cable by shortening the entire length of the inner cable.
As a result, while reducing the size and weight of the cylindrical member, it is possible to prevent the inner cable from floating from the winding groove of the cylindrical member, and to achieve improved durability and ensuring smooth winding operability.

  Hereinafter, the best mode for carrying out the cable type steering apparatus of the present invention will be described based on Examples 1 to 4 shown in the drawings.

First, the configuration will be described.
[Overall configuration]
FIG. 1 is an overall configuration diagram showing a steer-by-wire system (hereinafter referred to as “SBW system”) to which the cable-type steering apparatus of the first embodiment is applied.
The SBW system to which the cable-type steering device of the first embodiment is applied includes (1) a reaction force device, (2) a backup device, (3) a steering device, and (4) a control controller. Hereinafter, each configuration will be described in detail.

(1) Reaction force device The reaction force device includes a steering angle sensor 1, an encoder 2, torque sensors 3 and 3, a Hall IC 4, and a reaction force motor 5.

  The steering angle sensors 1 and 1 are means for detecting an operation angle of the handle 6 and are provided on a column shaft 8 that couples a cable column 7 and a handle 6 described later. The operation angle detection system of the handle 6 is constituted by a double system by two steering angle sensors 1 and 1. The steering angle sensors 1 and 1 are installed between the steering wheel 6 and the torque sensors 3 and 3 so that the steering angle can be detected without being affected by the angle change caused by the twist of the torque sensors 3 and 3. It has become. The rudder angle sensors 1 and 1 use an absolute resolver or the like.

  The torque sensors 3 and 3 are installed between the rudder angle sensor 1 and the reaction force motor 5, and are configured in a double system by two torque sensors of the torque sensor 1 and the torque sensor 2. . The torque sensors 3, 3 are connected to, for example, an axially extending torsion bar, one end of the torsion bar, a first shaft that is coaxial with the torsion bar, and the other end of the torsion bar, A second axis coaxial with the torsion bar and the first axis; a first magnetic body fixed to the first axis; a second magnetic body fixed to the second axis; the first magnetic body; The coil includes a coil facing the second magnetic body, and a third magnetic body that surrounds the coil and forms a magnetic circuit together with the first magnetic body and the second magnetic body. The coil changes in inductance corresponding to the relative displacement between the first magnetic body and the second magnetic body based on torsion acting on the torsion bar, and detects torque from an output signal based on the inductance.

  The reaction force motor 5 is a steering reaction force actuator that applies a reaction force to the handle 6. The reaction force motor 5 includes a 1-rotor 1-stator electric motor having the column shaft 8 as a rotation axis, and its casing is provided at an appropriate position of the vehicle body. It is fixed to. As this reaction force motor 5, a brushless motor is used, and an encoder 2 and a Hall IC 4 are added as the brushless motor is used. In that case, motor drive that generates motor torque is possible with only the Hall IC 4, but minute torque fluctuations occur and the feeling of steering reaction force is poor. Therefore, in order to perform more delicate and smooth reaction force control, the encoder 2 is mounted on the column shaft 8 and motor control is performed, so that minute torque fluctuations are reduced and the steering reaction force feeling is improved. To do. A resolver may be used instead of the encoder 2.

(2) The backup device that can mechanically separate and connect the backup device reaction force device (1) and the steering device (3) includes a cable column 7 and a backup clutch 9.

  While the cable column 7 is in the backup mode in which the backup clutch 9 is engaged, the torque of the cable column 7 is reduced while avoiding interference with a member interposed between the reaction device (1) and the steering device (3). It is a mechanical backup mechanism that demonstrates the function of a column shaft that transmits power. In the cable column 7, two inner cables 73 and 74 whose cable ends are fixed to the pulleys 71 and 72 are wound around the two pulleys 71 and 72 in opposite directions, and two pieces are wound around the two pulley casings 75 and 76. The inner cables 73 and 74 are fixed at both ends of the outer tubes 77 and 78.

(3) Steering device The steering device includes encoders 10 and 10, rudder angle sensors 11 and 11, torque sensors 12 and 12, Hall IC 13, steered motors 14 and 14, steering mechanism 15, and steered wheels 16 and 16. It is comprised.

  The steering angle sensors 11 and 11 and the torque sensors 12 and 12 are provided on an axis of a pinion shaft 17 in which the backup clutch 9 is attached to one end and a pinion gear is formed at the other end. As the rudder angle sensors 11 and 11, an absolute resolver or the like that forms a double system and detects the rotational speed of the shaft is used in the same manner as the rudder angle sensors 1 and 1. Further, as the torque sensors 12, 12, a sensor that forms a double system like the torque sensors 3, 3 and detects torque by a change in inductance is used. The steering angle sensors 11 and 11 are arranged on the downstream side via the pinion gear, and the torque sensors 12 and 12 are arranged on the upstream side, whereby the torque sensors 12 and 12 are detected when the steering angle sensors 11 and 11 detect the turning angle. It is made not to be affected by the angle change due to the twisting of the.

  The steering motors 14 and 14 are provided with pinion gears on the motor shaft that mesh with worm gears provided at intermediate positions between the backup clutch 9 and the torque sensors 12 and 12 on the pinion shaft 17, so that the pinion shaft 17 is driven when the motor is driven. It is comprised so that steering torque may be provided to. The steered motors 14 and 14 form a double system and are brushless motors that constitute the first steered motor 14 and the second steered motor 14. Similarly to the reaction force motor 5, the encoders 10 and 10 and the Hall IC 13 are added as the brushless motor is used.

  The steering mechanism 15 is a steering mechanism that steers the left and right steered wheels 16 and 16 by the rotation of the pinion shaft 17, and a rack gear that is inserted into the rack tube 15 a and meshes with the pinion gear of the pinion shaft 17. The formed rack shaft 15b, tie rods 15c and 15c coupled to both ends of the rack shaft 15b extending in the vehicle left-right direction, one end coupled to the tie rods 15c and 15c, and the other end of the steered wheels 16 and 16 And knuckle arms 15d and 15d coupled to each other.

(4) Control Controller The control controller has a dual system composed of two control controllers 19 and 19 that perform processing calculations and the like by the power supply 18.

  The controller 19 includes a rudder angle sensor 1, 1, an encoder 2, torque sensors 3, 3, a Hall IC 4, an encoder 10, 10, a rudder angle sensor 11, a steering device (3). 11, detected values from the torque sensors 12, 12 and the Hall IC 13 are input.

  The controller 19 has a failure diagnosis unit. In this failure diagnosis unit, each failure diagnosis of steering control and reaction force control in steer-by-wire control (hereinafter referred to as “SBW control”) by clutch release, clutch clutch Failure diagnosis in electric power steering control (hereinafter referred to as “EPS control”), which is assist torque control by connection, and transition control from “SBW control” to “EPS control” at the time of failure diagnosis are diagnosed.

  In addition to the failure diagnosis unit, the control controller 19 includes a reaction force command value calculation unit, a reaction force motor drive unit, a reaction force device current sensor, a turning command value calculation unit, a turning motor drive unit, a turning device current sensor, Each has a controller diagnosis unit. The two controllers 19 and 19 are connected to each other via a bidirectional communication line 20 so as to exchange information.

  Sensor information from a yaw rate / lateral G sensor (not shown), a vehicle speed sensor that detects the vehicle speed, a reaction force motor temperature sensor that detects the temperature of the reaction force motor 5, and the like is input to the control controllers 19 and 19. .

[Cable end support structure]
FIG. 2 is a pulley plan view (a), a pulley side view (b), a pulley front view (c), and a pulley perspective view (d) showing a cable end support structure in the cable type steering apparatus of the first embodiment.
First, in the first embodiment, as shown in FIG. 1, a cable type steering device is used as a backup mechanism of the SBW. In this cable-type steering device, the driving pulley and the driven pulley rotate freely in the same direction as the steering wheel 6 turns left and right, and both ends thereof are moved to the driving side and the driven side by the rotation of the pulleys 71 and 72, respectively. The two inner cables 73 and 74 fixed to the pulley are relatively pulled and relaxed.

  At the time of cutting from the neutral position of the handle 6, the pulley 71 on the reaction device side is a driving pulley, and the pulley 72 on the steering device side is a driven pulley. Further, when the handle 6 returns to the neutral position by the self-aligning torque generated in the steered wheels 16, 16 when the handle 6 is released from the cut state, the pulley 72 on the steering device side is the drive side pulley, The pulley 71 on the force device side is a driven pulley. Hereinafter, although the pulleys 71 and 72 have the same structure, the cable end part support structure with respect to one pulley 71 shown in FIG. 2 is demonstrated here.

  The cable-type steering apparatus according to the first embodiment has a cable end support structure A1 that supports a cable end 73a of an inner cable 73 on a pulley 71 (cylindrical member), and the pulley 71 on which the cable end 73a is supported. The inner cable 73 is wound up along a winding groove 71a formed in a spiral shape on the outer peripheral surface of the pulley 71 when rotated about the rotation axis L.

The cable end support structure A1 is configured to generate a support force with respect to a rotational force F in the same direction as the rotation axis L of the pulley 71 input to the cable end portion 73a. The first rotation support surface 81 is set on the pulley 71, and the second rotation support surface 82 is set on the pulley 71 side.
The first rotation support surface 81 is set to a first support member 83 (support member) provided by being fixed to the cable end portion 73a by casting, caulking, or the like, and the second rotation support surface 82 is set to the pulley 71. And a first support groove 84 (support groove) having a communication opening at the end surface of the pulley 71 and the upper end portion of the outer peripheral surface.
As shown in FIG. 2 (a), the first rotation support surface 81 on the cable end 73a side is respectively positioned on both sides of the cable end 73a by the semicircular outer peripheral surface of the first support member 83. The second rotation support surface 82 on the pulley 71 side is set on both sides of the cable end portion 73a by the semicircular inner circumferential surface of the first support groove 84.

The cable end support structure A1 has an inner cable on the pulley 71 side so as to generate a support force against a force F ′ perpendicular to the rotation axis L of the pulley 71 input to the inner cable 73. A cable guide groove 85 is set.
As shown in FIGS. 2A and 2D, the inner cable guide groove 85 is deeply cut in a spiral shape by a 1/4 arc from the end face of the pulley 71 in the direction of the rotation axis L. The first support groove 84 is a U-shaped groove formed in communication. In this U-shaped groove, the end surface of the pulley 71 is an opening, the groove width is set to be approximately the same as the outer diameter of the inner cable 73, and the groove bottom is a semicircular arc shape that matches the shape of the inner cable 73. Thus, the cable end 73a of the inner cable 73 is tightly clamped.

  The first support member 83 has a cylindrical pin shape, the first support groove 84 has a pin hole shape, and the first support member 83 is formed with respect to the first support groove 84 as shown in FIG. As shown in FIG. 2, after being inserted in the direction of the axis L1 substantially orthogonal to the rotation axis L of the pulley 71 (arrow (A)), the rotation is performed about the axis L1 substantially orthogonal to the rotation axis L of the pulley 71 ( It is supported by an arrow (b)). The first support member 83 having the cylindrical pin shape is in a fixed state with respect to the input in the rotation axis L direction and the input in the axis L1 direction substantially orthogonal to the rotation axis L.

Next, the operation will be described.
[Overview of conventional technology and problems]
In a steer-by-wire system, if the reaction force actuator fails, the reaction force control is stopped, the clutch is engaged, and the handle and steering wheel are mechanically connected via a cable column as a backup mechanism. A cable-type backup mechanism is used so that the rotation of the steering wheel is transmitted to the pinion so that the tire can be steered.

  In this cable-type steering device, when the handle is turned to the right, for example, the driving pulley rotates in the same direction, so that one inner cable is wound and pulled to rotate the driven pulley to the right. At this time, the other inner cable is simultaneously relaxed and wound around the driven pulley. Thereby, the rack of the steering mechanism is slid in the left direction, and the tire is steered in the right direction. Further, if the steering wheel is turned to the left, the tire can be steered by a reverse operation to that described above.

  As the handle is turned to the maximum left and right rotation position, the drive pulley and the driven pulley rotate freely in the same direction, and the rotation of this pulley causes one of the inner cables to be further driven. Each inner cable is relatively pulled and relaxed so that it is loosened from the side pulley and wound around the driving pulley, while the other inner cable is gradually loosened from the driving pulley and wound around the driven pulley. It is like that.

  In this cable type steering apparatus, the end portion of the inner cable and the fixed portion of the pulley are cylindrical pin-shaped pins fixed to the end portion of the inner cable by casting or caulking into pin holes formed on the end surface of the pulley. After being fixed, it is wound around the pulley along a winding groove formed on the outer peripheral surface of the pulley. And the tension | tensile_strength of an inner cable is supported by the frictional force which acts between this inner cable and a winding groove | channel, and it avoids that a load acts on the pin hole of an inner cable, the pin of an inner cable edge, and a pulley.

  When the handle is at the maximum rotation position, in the driving pulley, one inner cable is completely wound around the pulley, but the other inner cable is completely relaxed from the pulley. Also, the driven pulley is in the same situation as the drive pulley. When the handle is turned in the opposite direction (return direction to the neutral position) from the left and right maximum rotation positions, the inner cable on the slack side becomes the inner cable on the traction side, and the pulley rotates in the reverse direction. Wrap around the pulley.

  At this time, the cylindrical pin-shaped pin fixed to the end portion of the inner cable freely rotates in the same direction as the pulley in the pin hole formed on the end surface of the pulley, so that the inner cable is wound around the winding groove. It may float up and spread outward. And the outer surface of an inner cable and the inner surface of a pulley casing contact, and an inner cable becomes easy to be damaged, and durability of an inner cable may fall. This is because the pin at the end of the inner cable is in the shape of a cylindrical pin, so it is fixed to the pin hole formed on the end face of the pulley, but the rotational force in the same direction as the pulley shaft generated by the rotation of the pulley in the left-right direction On the other hand, it can rotate freely in the pin hole of the pulley. In addition, when the inner cable is lifted, particularly when the handle is turned suddenly, the inner cable may not be wound along the winding groove on the outer peripheral surface of the pulley on the loose side, which may cause a failure in the operation of the cable. is there.

  In Japanese Patent Laid-Open No. 10-059195, when the inner cable is wound around the winding groove of the pulley, the inner cable is always wound around the pulley more than two times so that a sufficient frictional force acts between the inner cable and the pulley. This prevents an excessive load from acting on the pin fixing portions of the inner cable, the pin, and the pulley even when the handle reaches the left and right maximum rotational positions. Further, when the handle is turned in the opposite direction from the left and right maximum rotation positions, the inner cable is prevented from being lifted from the pulley winding groove and not being wound around the pulley along the winding groove.

  However, since the inner cable is always wound around the pulley more than two turns, the overall length of the pulley in the axial direction becomes longer, leading to an increase in the size of the pulley, and the total length of the inner cable also increases the margin for winding more than two turns. It will increase.

[Cable end support]
In the cable-type steering device according to the first embodiment, the inner cables 73 and 74 are prevented from being lifted from the winding groove 71a of the pulley 71 while reducing the size and weight of the pulley 71. And improved smoothness and smooth winding operability can be achieved.
Hereinafter, the effect of reducing the size and weight, the function of assembling, and the function of preventing the inner cable from floating in the cable type steering apparatus of the first embodiment will be described.

In the cable-type steering device of the first embodiment, the cable end is configured to generate a supporting force with respect to the rotational force F in the same direction as the rotational axis L of the pulley 71 input to the cable end portion 73a. The cable end support structure A1 in which the first rotation support surface 81 is set on the portion 73a side and the second rotation support surface 82 is set on the pulley 71 side is employed.
That is, in the past, in order to prevent the cable end from being lifted, a method of applying a frictional force between the inner cable and the pulley by always winding more than two turns was adopted. In order to prevent lifting, a method of restricting the cable end from rotating in the same direction as the pulley 71 was adopted.
For this reason, in the cable type steering apparatus of the first embodiment, unlike the conventional technique, it is not necessary to always wind the pulley around the pulley more than twice even on the side where the inner cable is relaxed. Thus, the pulley 71 can be reduced in size, and the total length of the inner cables 73 and 74 can be shortened, so that the weight can be reduced.

Assembling action The first support member 83 of the cable end 73a and the first support groove 84 of the pulley 71 are assembled by first forming the first support member 83 fixed to the cable end 73a on the side surface of the pulley 71. Is inserted into the first support groove 84 (arrow (A) in FIG. 2D). Thereafter, the cable end 73a inserted in the direction of the rotation axis L of the pulley 71 is gripped and rotated around an axis L1 substantially orthogonal to the rotation axis L of the pulley 71 (arrow (b) in FIG. 2 (d)). Let Then, the cable end 73 a is fitted along the inner cable guide groove 85 and wound around the pulley 71.
At this time, the tension of the inner cable 73 is supported by a frictional force acting between the inner cable 73 and the inner cable guide groove 85, and the inner cable 73, the first support member 83 of the cable end 73a, and the pulley 71 are supported. A load is prevented from acting on the first support groove 84.
Further, since the inner cable 73 is held in the inner cable guide groove 85 at the end of the pulley 71, the inner cable 73 comes off from the inner cable guide groove 85, or the first support member 83 at the cable end 73a is connected to the pulley 71. This prevents the first support groove 84 from coming off.

-Inner cable lifting prevention action The first support member 83 of the cable end 73a has a cylindrical pin shape, so that it can freely rotate around the axis L1 substantially orthogonal to the rotation axis L of the pulley 71, but the rotation of the pulley 71 For the rotational force F in the same direction as the axis L, the first rotation support surface 81 and the second rotation support surface 82 cause the first support member 83 of the cable end 73 a to move in the first support groove 84 of the pulley 71. , Free rotation is restricted.
As described above, when the pulley 71 is rotated in the reverse direction to change the relaxation-side inner cable 73 to the traction-side inner cable 73 and be wound around the pulley 71, the first support member 83 of the cable end 73a is In the first support groove 84 of the pulley 71, the inner cable 73 does not rotate freely in the same direction as the pulley 71, so that the inner cable 73 is prevented from floating from the inner cable guide groove 85.
By preventing the inner cable 73 from being lifted, for example, the inner cable 73 is prevented from coming into contact with the inner surface of the pulley casing 75 of the pulley 71 and easily damaged, and the inner cable 73 extends along the winding groove 71 a of the pulley 71. It is also avoided that it is not wound.

As described above, in the cable-type steering apparatus according to the first embodiment, the cable end support structure A1 supports the rotational force F in the same direction as the rotation axis L of the pulley 71 input to the cable end 73a. The first rotation support surface 81 was set on the cable end 73a side and the second rotation support surface 82 was set on the pulley 71 side so as to generate a force.
For this reason, the effect of reducing the size and weight and the effect of preventing the inner cable from lifting are exhibited, and the inner cable 73 and 74 are prevented from lifting from the winding groove 71a of the pulley 71 while reducing the size and weight of the pulley 71. It is possible to achieve the improvement in performance and the smooth winding operability.

In the cable-type steering apparatus according to the first embodiment, the first rotation support surface 81 is set as a support member provided at the cable end 73a, and the second rotation support surface 82 is a support groove formed in the pulley 71. Set to.
For example, when another member is fixed to the end surface of the pulley 71 and the second rotation support surface 82 on the pulley 71 side is set to this separate member, the number of parts is increased and the pulley 71 is increased in size.
On the other hand, since the second rotation support surface 82 is set to a support groove formed in the pulley 71, the first rotation support surface 81 and the second rotation support are not caused without increasing the number of parts and increasing the size of the pulley 71. The surface 82 can be easily set on the cable end 73a side and the pulley 71 side.

In the cable type steering apparatus according to the first embodiment, the cable end support structure A1 generates a support force with respect to a force F ′ perpendicular to the rotation axis L of the pulley 71 input to the inner cable 71. Thus, an inner cable guide groove 85 is set on the pulley 71 side.
For example, when the frictional force supporting the tension of the inner cable 73 is small, a load acts on the inner cable 73, the first support member 83 of the cable end 73a, and the first support groove 84 of the pulley 71, and the inner cable 73 Is disengaged from the winding groove 19a, or the first support member 83 of the cable end 73a is detached from the first support groove 84 of the pulley 71.
On the other hand, since the inner cable guide groove 85 that generates a frictional force that supports the tension of the inner cable 73 is set on the pulley 71 side, the inner cable 73, the first support member 83 of the cable end 73a, and the pulley 71 are arranged. It is possible to avoid the load from acting on the first support groove 84, the inner cable 73 is detached from the inner cable guide groove 85, and the first support member 83 of the cable end 73 a is the first support groove of the pulley 71. It is possible to prevent the slipping from 84.

In the cable type steering apparatus according to the first embodiment, the support member is a first support member 83 having a cylindrical pin shape, the support groove is a first support groove 84 having a pin hole shape, and the first support member 83. Is inserted into the first support groove 84 in the direction of the axis L1 substantially orthogonal to the rotation axis L of the pulley 71, and then rotated about the axis L1 substantially orthogonal to the rotation axis L of the pulley 71. And supported.
For example, when the first support member 83 is supported by being inserted from the direction of the rotation axis L of the pulley 71, the assembling workability is high, but it is fixed by frictional force in the direction of the rotation axis L of the pulley 71 that is the insertion direction. Thus, there is a case where stable fixation of the first support member 83 is not ensured with respect to vibration input or the like.
On the other hand, by assembling the first support member 83 by inserting and rotating, it is ensured that the first support member 83 is detached from the first support groove 84 while ensuring good assembly workability. The high fixability to avoid can be obtained.

Next, the effect will be described.
In the cable type steering apparatus of the first embodiment, the effects listed below can be obtained.

  (1) The pulley 71 has a cable end support structure A1 that supports the cable end 73a of the inner cable 73, and when the cable end 73a rotates around the rotation axis L of the pulley 71 that is supported, In the cable-type steering apparatus that winds the inner cable 73 along a winding groove 71a formed in a spiral shape on the outer peripheral surface of the pulley 71, the cable end support structure A1 is a pulley 71 that is input to the cable end 73a. The first rotation support surface 81 is set on the cable end 73a side and the second rotation support surface 82 is set on the pulley 71 side so as to generate a support force with respect to the rotation force F in the same direction as the rotation axis L. As a result, the inner cable 73, 74 is prevented from floating from the winding groove 71a of the pulley 71 and the durability is improved while the pulley 71 is reduced in size and weight. It can be achieved to ensure the smooth winding operability.

  (2) Since the first rotation support surface 81 is set as a support member provided at the cable end 73a and the second rotation support surface 82 is set as a support groove formed in the pulley 71, the number of parts is increased. In addition, the first rotation support surface 81 and the second rotation support surface 82 can be easily set on the cable end 73a side and the pulley 71 side without increasing the size of the pulley 71.

  (3) The cable end support structure A1 generates the support force with respect to the force F ′ in the vertical direction with respect to the rotation axis L of the pulley 71 that is input to the inner cable 71. Since the inner cable guide groove 85 is set on the side, it is possible to avoid the load from acting on the inner cable 73, the first support member 83 of the cable end 73a, and the first support groove 84 of the pulley 71, and the inner cable. 73 can be prevented from coming off from the inner cable guide groove 85, and the first support member 83 of the cable end 73 a can be prevented from coming off from the first support groove 84 of the pulley 71.

  (4) The support member is a first support member 83 having a cylindrical pin shape, the support groove is a first support groove 84 having a pin hole shape, and the first support member 83 is the first support groove. 84 is inserted in the direction of the axis L1 substantially orthogonal to the rotation axis L of the pulley 71 and then rotated and supported around the axis L1 substantially orthogonal to the rotation axis L of the pulley 71. While securing the workability, it is possible to obtain high fixability that reliably avoids the first support member 83 from coming off the first support groove 84.

  The second embodiment is an example in which the support member is a second support member having a cubic shape or a plate shape instead of the cylindrical pin-shaped first support member in the first embodiment.

First, the configuration will be described.
FIG. 3 is a pulley plan view (a), a pulley side view (b), a pulley front view (c), and a pulley perspective view (d) showing a cable end support structure in the cable type steering apparatus of the second embodiment.

  In the cable type steering apparatus of the second embodiment, the pulley 71 (cylindrical member) has a cable end support structure A2 that supports the cable end 73a of the inner cable 73, and the pulley 71 is supported by the cable end 73a. The inner cable 73 is wound up along a winding groove 71a formed in a spiral shape on the outer peripheral surface of the pulley 71 when rotated about the rotation axis L.

The cable end support structure A2 has a cable end 73a side so as to generate a support force against the rotational force F in the same direction as the rotation axis L of the pulley 71 input to the cable end 73a. The first rotation support surface 81 is set on the pulley 71, and the second rotation support surface 82 is set on the pulley 71 side.
The first rotation support surface 81 is set to a second support member 86 (support member) provided by being fixed to the cable end portion 73a by casting, caulking or the like, and the second rotation support surface 82 is set to the pulley 71. And a second support groove 87 (support groove) having a communication opening at the end surface of the pulley 71 and the upper end portion of the outer peripheral surface.

  The cable end support structure A2 has an inner cable on the pulley 71 side so as to generate a support force against a force F ′ perpendicular to the rotation axis L of the pulley 71 input to the inner cable 73. A cable guide groove 85 is set.

  The second support member 86 has a cube shape or a plate shape having a thickness, the second support groove 87 has an inner surface shape coinciding with the second support member 86, and the second support member 86 has the first shape. 2 The support groove 87 is supported by being inserted from the direction of the rotation axis L of the pulley 71. Since other configurations are the same as those of the first embodiment, the description thereof is omitted.

Next, the operation will be described.
The assembling action and the inner cable lifting preventing action by the cable end support structure A2 of the second embodiment will be described.

Assembling action The assembling of the cable end 73a to the second support member 86 and the second support groove 87 of the pulley 71 is performed by first attaching the second support member 86 fixed to the cable end 73a to the rotation axis L of the pulley 71. The second support groove 87 is inserted from the direction. Then, the cable end 73 a is fitted along the inner cable guide groove 85 and wound around the pulley 71.
At this time, the tension of the inner cable 73 is supported by a frictional force acting between the inner cable 73 and the inner cable guide groove 85, and the inner cable 73 and the second support member 86 of the cable end 73a and the pulley 71 are supported. A load is avoided from acting on the second support groove 87.
Further, since the inner cable 73 is held in the inner cable guide groove 85 at the end of the pulley 71, the inner cable 73 comes off from the inner cable guide groove 85, or the second support member 86 at the cable end 73a is connected to the pulley 71. This prevents the second support groove 87 from coming off.

Inner cable floating prevention action For the rotational force F in the same direction as the rotation axis L of the pulley 71 acting on the second support member 86 of the cable end 73a, the first rotation support surface 81 and the second rotation support surface 82 are provided. Thus, the second support member 86 is restricted from freely rotating in the second support groove 87 of the pulley 71.
Thus, when the inner cable 73 on the relaxation side is changed to the inner cable 73 on the pulling side by the reverse rotation of the pulley 71 and is wound around the pulley 71, the second support member 86 of the cable end 73a is In the second support groove 87 of the pulley 71, the inner cable 73 is not freely rotated in the same direction as the pulley 71, so that the inner cable 73 is prevented from being lifted from the inner cable guide groove 85.
By preventing the inner cable 73 from being lifted, for example, the inner cable 73 is prevented from coming into contact with the inner surface of the pulley casing 75 of the pulley 71 and easily damaged, and the inner cable 73 extends along the winding groove 71 a of the pulley 71. It is also avoided that it is not wound.

As described above, in the cable-type steering apparatus according to the second embodiment, the support member is the second support member 86 having a cubic shape or a plate shape having a thickness, and the support groove coincides with the second support member 86. The second support groove 87 has an inner surface shape, and the second support member 86 is supported by being inserted into the second support groove 87 from the direction of the rotation axis L of the pulley 71.
For example, in the case of Example 1, the assembly procedure of the second support member 86 to the second support groove 87 is based on two procedures. The first rotation support surface 81 is set by the semicircular arc outer peripheral surface of the first support member 83, and the second rotation support surface 82 is set by the semicircular arc inner peripheral surface, and rotates around the axis L <b> 1 by the input from the inner cable 73. May rotate.
On the other hand, since the second support member 86 is supported only by being inserted into the second support groove 87 from the direction of the rotation axis L of the pulley 71, the number of assembling procedures becomes one and high assembling workability can be obtained. At the same time, the support member is a second support member 86 having a cubic shape or a plate shape having a thickness, and the first rotation support surface 81 and the second rotation support surface 82 are set by plane contact, so that there is input from the inner cable 73. However, it is possible to reliably avoid the second support member 86 from rotating about the axis L1 that is substantially orthogonal to the rotation axis L of the pulley 71.

Next, the effect will be described.
In the cable type steering apparatus of the second embodiment, the following effects can be obtained in addition to the effects (1), (2), and (3) of the first embodiment.

  (5) The support member is a second support member 86 having a cube shape or a plate shape having a thickness, and the support groove is a second support groove 87 having an inner surface shape coinciding with the second support member 86, Since the second support member 86 is supported by being inserted into the second support groove 87 from the direction of the rotation axis L of the pulley 71, high assembling workability can be obtained and there is input from the inner cable 73. In addition, it is possible to reliably avoid the second support member 86 from rotating about the axis L1 substantially orthogonal to the rotation axis L of the pulley 71.

  The third embodiment is an example in which the function of the inner cable guide groove in the first and second embodiments is provided by the vertical support surface of the support member and the support groove.

First, the configuration will be described.
FIG. 4 is a pulley plan view (a), a pulley side view (b), a pulley front view (c), and a pulley perspective view (d) showing a cable end support structure in the cable type steering apparatus of the third embodiment.

  The cable-type steering apparatus according to the third embodiment includes a pulley 71 (cylindrical member) having a cable end support structure A3 that supports the cable end 73a of the inner cable 73, and the pulley 71 supported by the cable end 73a. The inner cable 73 is wound up along a winding groove 71a formed in a spiral shape on the outer peripheral surface of the pulley 71 when rotated about the rotation axis L.

The cable end support structure A3 generates a support force against the rotational force F in the same direction as the rotation axis L of the pulley 71 that is input to the cable end 73a. The first rotation support surface 81 is set on the pulley 71, and the second rotation support surface 82 is set on the pulley 71 side.
The first rotation support surface 81 is set to a third support member 88 (support member) provided by being fixed to the cable end portion 73a by casting, caulking or the like, and the second rotation support surface 82 is set to the pulley 71. And a third support groove 89 (support groove) having a communication opening at the end surface of the pulley 71 and the upper end portion of the outer peripheral surface.

The cable end support structure A3 generates a support force against a force F ′ in the vertical direction with respect to the rotation axis L of the pulley 71 that is input to the inner cable 73, so that the cable end support side A3 side A first vertical support surface 91 is set on the pulley 71, and a second vertical support surface 92 is set on the pulley 71 side.
The first vertical support surface 91 is set to the third support member 88 provided at the cable end 73a together with the first rotation support surface 81, and the second vertical support surface 92 is set to the second rotation support surface 82. At the same time, a third support groove 89 formed in the pulley 71 is set.

  The third support member 88 has an L-shaped cube or an L-shaped plate shape having a thickness, and the third support groove 89 has an inner surface shape coinciding with the third support member 88, and the third support member 88. Is supported by being inserted into the third support groove 89 from the direction of the rotation axis L of the pulley 71. Since other configurations are the same as those of the first embodiment, the description thereof is omitted.

Next, the operation will be described.
The assembling action and the inner cable lifting preventing action by the cable end support structure A3 of the third embodiment will be described.

Assembling action The assembling of the cable end 73a to the third support member 88 and the third support groove 89 of the pulley 71 is performed by first attaching the third support member 88 fixed to the cable end 73a to the rotation axis L of the pulley 71. Is inserted into the third support groove 89 from the direction of. And it is performed by winding the inner cable 73 along the winding groove 71 a of the pulley 71.
At this time, the tension of the inner cable 73 is supported by a frictional force acting between the inner cable 73 and the winding groove 71a, and the inner cable 73, the third support member 88 of the cable end 73a, and the third of the pulley 71 are supported. A load is avoided from acting on the support groove 89.
Further, the first vertical support surface 91 set on the third support member 88, and the first vertical support surface 91 for the rotation force L ′ of the pulley 71 acting on the cable end 73a of the inner cable 73, The second vertical support surface 92 set in the third support groove 89 generates a support force, and the inner cable 73 comes off from the winding groove 71a, or the third support member 88 of the cable end 73a is the third support of the pulley 71. It is prevented from coming out of the groove 89.

Inner cable floating prevention action For the rotational force F in the same direction as the rotation axis L of the pulley 71 acting on the second support member 86 of the cable end 73a, the first rotation support surface 81 and the second rotation support surface 82 are provided. Thus, the third support member 88 is restricted from freely rotating in the third support groove 89 of the pulley 71.
Thus, when the inner cable 73 on the relaxation side is changed to the inner cable 73 on the pulling side by the reverse rotation of the pulley 71 and is wound around the pulley 71, the third support member 88 of the cable end 73a is Since the third support groove 89 of the pulley 71 does not rotate freely in the same direction as the pulley 71, the inner cable 73 is prevented from being lifted from the winding groove 71a.
By preventing the inner cable 73 from being lifted, for example, the inner cable 73 is prevented from coming into contact with the inner surface of the pulley casing 75 of the pulley 71 and easily damaged, and the inner cable 73 extends along the winding groove 71 a of the pulley 71. It is also avoided that it is not wound.

As described above, in the cable-type steering apparatus according to the third embodiment, the cable end support structure A3 is applied to the force F ′ in the vertical direction with respect to the rotation axis L of the pulley 71 input to the inner cable 73. The first vertical support surface 91 is set on the cable end 73a side and the second vertical support surface 92 is set on the pulley 71 side so as to generate a support force.
For example, the first and second embodiments employ a configuration in which the inner cable guide groove 85 generates a supporting force for the vertical force F ′ with respect to the rotation axis L of the pulley 71 input to the inner cable 73. In addition, a groove processing that causes an increase in cost is required for the pulley 71.
On the other hand, in the third embodiment, by adopting the configuration of the first vertical support surface 91 set on the cable end 73a side and the second vertical support surface 92 set on the pulley 71 side, a groove that causes an increase in cost. It is possible to prevent the inner cable 73 from coming off the winding groove 71a and the third support member 88 of the cable end 73a from coming out of the third support groove 89 of the pulley 71 without requiring processing.

In the cable type steering apparatus according to the third embodiment, the first vertical support surface 91 is set to the third support member 88 provided at the cable end portion 73a together with the first rotation support surface 81, and the second vertical support surface is set. 92 is set in a third support groove 89 formed in the pulley 71 together with the second rotation support surface 82.
For example, a support member for setting the first rotation support surface 81 and a support member for setting the first vertical support surface 91 are respectively fixed to the cable end 73a, and the second rotation support surface 82 is fixed to these support members. If the support groove for setting the second vertical support surface 92 and the support groove for setting the second vertical support surface 92 are set, the cost increases and the pulley 71 increases in size.
On the other hand, by setting the second rotation support surface 82 to the support groove formed in the pulley 71, the first rotation support surface 81 and the first vertical support surface are not caused without increasing the cost and increasing the size of the pulley 71. The four support surfaces 91, the second rotation support surface 82, and the second vertical support surface 92 can be easily set on the cable end 73a side and the pulley 71 side.

In the cable type steering apparatus according to the third embodiment, the support member is an L-shaped cube or a third support member 88 having an L-shaped plate shape having a thickness, and the support groove is an inner surface coinciding with the third support member 88. The third support groove 89 has a shape, and the third support member 88 is supported by being inserted into the third support groove 89 from the direction of the rotation axis L of the pulley 71.
For example, in the case of Example 1, the assembly procedure of the second support member 86 to the second support groove 87 is based on two procedures. The first rotation support surface 81 is set by the semicircular arc outer peripheral surface of the first support member 83, and the second rotation support surface 82 is set by the semicircular arc inner peripheral surface, and rotates around the axis L <b> 1 by the input from the inner cable 73. May rotate.
On the other hand, since the third support member 88 is supported only by being inserted into the third support groove 89 from the direction of the rotation axis L of the pulley 71, the number of assembling procedures becomes one and high assembling workability can be obtained. At the same time, the support member is an L-shaped cube or a third support member 88 having an L-shaped plate shape having a thickness, and the first rotation support surface 81, the first vertical support surface 91, the second rotation support surface 82, and the second vertical support. By setting the four support surfaces with the surface 92 by plane contact, it is possible to ensure high fixability of the third support member 88 to the third support groove 89 even if there is input from the inner cable 73 in various directions. Can do.

Next, the effect will be described.
In the cable type steering apparatus of the third embodiment, in addition to the effects (1) and (2) of the first embodiment, the effects listed below can be obtained.

  (6) The cable end support structure A3 is configured so that the cable end is configured to generate a support force with respect to a force F ′ in a vertical direction with respect to the rotation axis L of the pulley 71 input to the inner cable 73. Since the first vertical support surface 91 is set on the side of the portion 73a and the second vertical support surface 92 is set on the pulley 71 side, the inner cable 73 can be detached from the winding groove 71a without requiring groove processing that increases costs. Further, it is possible to prevent the third support member 88 of the cable end portion 73a from coming out of the third support groove 89 of the pulley 71.

  (7) The first vertical support surface 91 is set to the third support member 88 provided at the cable end 73a together with the first rotation support surface 81, and the second vertical support surface 92 is set to the second rotation support surface 81. Since the third support groove 89 formed in the pulley 71 together with the support surface 82 is set, the first rotation support surface 81, the first vertical support surface 91, and the second rotation support are not caused without increasing the cost or increasing the size of the pulley 71. The four support surfaces of the surface 82 and the second vertical support surface 92 can be easily set on the cable end 73a side and the pulley 71 side.

  (8) The support member is a third support member 88 having an L-shaped cube or L-shaped plate shape having a thickness, and the support groove is a third support groove 89 having an inner surface shape coinciding with the third support member 88. Since the third support member 88 is supported by being inserted into the third support groove 89 from the direction of the rotation axis L of the pulley 71, it is possible to obtain a high assembling workability and from the inner cable 73. Even if there is an input in various directions, it is possible to ensure high fixability of the third support member 88 to the third support groove 89.

  The fourth embodiment is an example in which a fourth support member having a T-shaped cube or a T-shaped plate having a thickness is employed instead of the third support member having a L-shaped cube having a thickness or an L-shaped plate having a thickness. .

First, the configuration will be described.
FIG. 5 is a pulley plan view (a), a pulley side view (b), a pulley front view (c), and a pulley perspective view (d) showing a cable end support structure in the cable type steering apparatus of the fourth embodiment.

  In the cable type steering apparatus of the fourth embodiment, the pulley 71 (cylindrical member) has a cable end support structure A4 that supports the cable end 73a of the inner cable 73, and the pulley 71 is supported by the cable end 73a. The inner cable 73 is wound up along a winding groove 71a formed in a spiral shape on the outer peripheral surface of the pulley 71 when rotated about the rotation axis L.

The cable end support structure A4 has a cable end 73a side so as to generate a support force with respect to the rotational force F in the same direction as the rotation axis L of the pulley 71 input to the cable end 73a. The first rotation support surface 81 is set on the pulley 71, and the second rotation support surface 82 is set on the pulley 71 side.
The first rotation support surface 81 is set to a fourth support member 93 (support member) provided by being fixed to the cable end portion 73a by casting, caulking or the like, and the second rotation support surface 82 is set to the pulley 71. And a fourth support groove 94 (support groove) having a communication opening at the end surface of the pulley 71 and the upper end portion of the outer peripheral surface.

The cable end support structure A4 has a cable end 73a side so as to generate a support force against a force F ′ in a vertical direction with respect to the rotation axis L of the pulley 71 input to the inner cable 73. A first vertical support surface 91 is set on the pulley 71, and a second vertical support surface 92 is set on the pulley 71 side.
The first vertical support surface 91 is set to the fourth support member 93 provided at the cable end 73 a together with the first rotation support surface 81, and the second vertical support surface 92 is set to the second rotation support surface 82. At the same time, a fourth support groove 94 formed in the pulley 71 is set.

  The fourth support member 93 has a T-shaped cube or a T-shaped plate shape having a thickness, and the fourth support groove 94 has an inner surface shape coinciding with the fourth support member 93, and the fourth support member 93. Is supported by being inserted into the fourth support groove 94 from the direction of the rotation axis L of the pulley 71. Since other configurations are the same as those of the third embodiment, the description thereof is omitted.

Next, the operation will be described.
In the fourth embodiment, the contact length between the first vertical support surface 91 and the second vertical support surface 92 is determined by changing the fourth support member 93 to a T-shaped cube having a T-shaped cube or thickness. The third support member 88 can be secured longer than the third support member 88. That is, the support force generated with respect to the force F ′ in the vertical direction with respect to the rotation axis L of the pulley 71 input to the inner cable 73 can be increased as compared with the third support member 88 of the third embodiment.
Therefore, with respect to the force F ′ in the vertical direction with respect to the rotation axis L of the pulley 71 where the inner cable 73 acts on the cable end portion 73a, the first vertical support surface 91 set on the third support member 88, and the first The second vertical support surface 92 set in the third support groove 89 generates a higher support force, and the inner cable 73 comes off from the winding groove 71a, or the third support member 88 of the cable end 73a is the third of the pulley 71. It is reliably prevented from coming out of the support groove 89. Since other operations are the same as those of the third embodiment, description thereof is omitted.

Next, the effect will be described.
In the cable type steering apparatus of the fourth embodiment, the following effects can be obtained in addition to the effects (1), (2) of the first embodiment and (6), (7) of the third embodiment.

  (9) The support member is a T-cube or a fourth support member 93 having a T-shaped plate shape having a thickness, and the support groove is a fourth support groove 94 having an inner surface shape coinciding with the fourth support member 93. Since the fourth support member 93 is supported by being inserted into the fourth support groove 94 from the direction of the rotation axis L of the pulley 71, the inner cable 73 is detached from the winding groove 71a or the cable end 73a. The third support member 88 can be reliably prevented from coming out of the third support groove 89 of the pulley 71.

  As mentioned above, although the cable type steering apparatus of the present invention has been described based on the first to fourth embodiments, the specific configuration is not limited to these embodiments, and each claim of the claims Design changes and additions are permitted without departing from the spirit of the invention.

  In Examples 1 to 4, as the cable end support structure, the first rotation support is provided on the support member so as to generate a support force with respect to the rotational force in the same direction as the rotation axis of the pulley input to the cable end. An example is shown in which the surface is set and the second rotation support surface is set in the support groove. However, if the first rotation support surface and the second rotation support surface are set on the cable end side and the pulley side, implementation is possible. Any embodiment other than Examples 1 to 4 may be used. In short, the cable end support structure has the first rotation support surface on the cable end side so as to generate a support force against the rotational force in the same direction as the rotation axis of the pulley input to the cable end. Any setting and setting of the second rotation support surface on the pulley side are included in the present invention.

  In the third and fourth embodiments, the function of the inner cable guide groove in the first and second embodiments is given by the vertical support surface of the support member and the support groove. A guide groove may be employed to further enhance the effect of preventing the inner cable from coming off.

  In the first to fourth embodiments, an example of the cable type steering device applied as a backup mechanism of the steer-by-wire system has been shown. However, in order to increase the relative position between the steering wheel and the steering mechanism and the degree of freedom of handling, The present invention can also be applied to a steering system or the like that employs a replacement cable for the steering force transmission system. In short, the cylindrical member has a cable end support structure that supports the cable end of the inner cable, and is formed on the outer peripheral surface of the cylindrical member when the cable end rotates about the rotation axis of the supported cylindrical member. The present invention can be applied to any cable type steering device that winds the inner cable along the winding groove.

1 is an overall configuration diagram illustrating a steer-by-wire system to which a cable-type steering apparatus according to a first embodiment is applied. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a pulley plan view (a), a pulley side view (b), a pulley front view (c), and a pulley perspective view (d) showing a cable end support structure in a cable-type steering apparatus of Embodiment 1. FIG. 6 is a pulley plan view (a), a pulley side view (b), a pulley front view (c), and a pulley perspective view (d) showing a cable end support structure in the cable type steering apparatus of Embodiment 2. FIG. 6 is a pulley plan view (a), a pulley side view (b), a pulley front view (c), and a pulley perspective view (d) showing a cable end support structure in a cable type steering apparatus of Embodiment 3. FIG. 9 is a pulley plan view (a), a pulley side view (b), a pulley front view (c), and a pulley perspective view (d) showing a cable end portion support structure in the cable type steering apparatus of Embodiment 4.

Explanation of symbols

7 Cable columns 71, 72 Pulley (cylindrical member)
73, 74 Inner cable 75, 76 Pulley casing 77, 78 Outer tube
A1, A2, A3, A4 Cable end support structure 71a Winding groove 73a Cable end 81 First rotation support surface 82 Second rotation support surface 83 First support member (support member)
84 First support groove (support groove)
85 Inner cable guide groove 86 Second support member (support member)
87 Second support groove (support groove)
88 Third support member (support member)
89 Third support groove (support groove)
91 1st vertical support surface 92 2nd vertical support surface 93 4th support member (support member)
94 Fourth support groove (support groove)
L Rotating shaft of pulley 71

Claims (10)

The cylindrical member has a cable end support structure for supporting the cable end portion of the inner cable, and is formed on the outer peripheral surface of the cylindrical member when the cable end portion rotates around the rotation axis of the cylindrical member supported. In the cable-type steering device that winds the inner cable along the wound groove,
The cable end support structure has a first rotation support on the cable end side so as to generate a support force with respect to a rotational force in the same direction as the rotation axis of the cylindrical member input to the cable end. A cable-type steering apparatus characterized in that a surface is set and a second rotation support surface is set on the cylindrical member side. In the cable type steering apparatus according to claim 1,
The first rotation support surface is set to a support member provided at the cable end,
The cable-type steering device according to claim 1, wherein the second rotation support surface is set in a support groove formed in the cylindrical member. In the cable type steering apparatus according to claim 1 or 2,
The cable end support structure has an inner cable guide groove on the cylindrical member side so as to generate a support force against a force perpendicular to the rotation axis of the cylindrical member input to the inner cable. A cable-type steering device characterized by that. In the cable type steering apparatus according to claim 2 or 3,
The support member is a first support member having a cylindrical pin shape, and the support groove is a first support groove having a pin hole shape,
The first support member is inserted into the first support groove in the direction of an axis substantially orthogonal to the rotation axis of the cylindrical member, and then rotated about an axis substantially orthogonal to the rotation axis of the cylindrical member. A cable-type steering device characterized by being supported. In the cable type steering apparatus according to claim 2 or 3,
The support member is a second support member having a cube shape or a plate shape having a thickness, and the support groove is a second support groove having an inner surface shape coinciding with the second support member,
The cable-type steering apparatus, wherein the second support member is supported by being inserted into the second support groove from the direction of the rotation axis of the cylindrical member. In the cable type steering apparatus according to claim 1 or 2,
The cable end support structure has a first vertical support surface on the cable end side so as to generate a support force with respect to a force in a vertical direction with respect to a rotation axis of the cylindrical member input to the inner cable. And a second vertical support surface is set on the cylindrical member side. In the cable type steering apparatus according to claim 6,
The first vertical support surface is set to a support member provided at the cable end together with the first rotation support surface,
The cable type steering apparatus, wherein the second vertical support surface is set to a support groove formed in the cylindrical member together with the second rotation support surface. In the cable type steering apparatus according to claim 7,
The support member is a third support member having an L-shaped cube or an L-shaped plate shape having a thickness, and the support groove is a third support groove having an inner surface shape coinciding with the third support member,
The cable type steering apparatus, wherein the third support member is supported by being inserted into the third support groove from a rotation axis direction of the cylindrical member. In the cable type steering apparatus according to claim 7,
The support member is a T-cube or a fourth support member having a T-shaped plate shape having a thickness, and the support groove is a fourth support groove having an inner surface shape coinciding with the fourth support member,
The cable-type steering apparatus, wherein the fourth support member is supported by being inserted into the fourth support groove from the direction of the rotation axis of the cylindrical member. A cable-type steering device that winds the inner cable along a winding groove formed on the outer peripheral surface of the cylindrical member when the cable end portion of the inner cable is supported by the cylindrical member and rotates around the rotation axis of the cylindrical member. In
A first rotation support surface is set on the cable end side so as to generate a support force with respect to a rotational force in the same direction as the rotation axis of the cylindrical member input to the cable end portion, and the cylindrical member A cable-type steering device characterized in that a second rotation support surface is set on the side.

Images