JP6623715B2 - Steering wheel position adjustment device - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a steering wheel position adjusting device that can adjust a front-rear position or a vertical position of a steering wheel for steering an automobile.

  The automotive steering device is configured as shown in FIG. 14, and transmits the rotation of the steering wheel 1 to the input shaft 3 of the steering gear unit 2, and a pair of left and right tie rods 4 with the rotation of the input shaft 3. 4 is pushed and pulled to give a steering angle to the front wheels. The steering wheel 1 is supported and fixed to a rear end portion of a steering shaft 5. The steering shaft 5 is rotatably supported by the steering column 6 in a state where a cylindrical steering column 6 is inserted in the axial direction. Have been. The front end of the steering shaft 5 is connected to the rear end of the intermediate shaft 8 via a universal joint 7, and the front end of the intermediate shaft 8 is connected to the input shaft 3 via another universal joint 9. Connected to

  Conventionally, a steering device as described above is provided with a tilt mechanism for adjusting a vertical position of the steering wheel 1 and a telescopic mechanism for adjusting a front and rear position in accordance with a physique and a driving posture of a driver. (For example, see Patent Document 1). In the illustrated structure, in order to constitute a tilt mechanism, the upper front end of the housing 10 fixed to the front end of the steering column 6 is positioned in the width direction with respect to the vehicle body 11 (the width direction refers to the width direction of the vehicle body, The tilt shaft 12 disposed in the right and left direction is the same in the entire specification and claims. A displacement bracket 13 is provided on the lower surface of the steering column 6 in the axial direction, and a support bracket 14 is provided so as to sandwich the displacement bracket 13 from both sides in the width direction. The support bracket 14 is provided with a vertically long slot 15 for adjusting the tilt in the vertical direction in a portion of the displacement side bracket 13 which is aligned with a part of the long slot 15 for both tilts. ), Long telescopic adjustment slots 16 are formed. Then, the adjusting rod 17 is inserted in a state in which the tilt adjusting slot 15 and the telescopic adjusting slot 16 are inserted in the width direction. In addition, the steering shaft 5 and the steering column 6 are structured to be extendable and contractible. In the illustrated structure, the telescoping adjustment slot 16 is formed as a long slot in the front-rear direction, so that the front-rear position of the steering wheel 1 can be adjusted. By operating an adjustment lever (not shown) provided at one end of the adjustment rod 17, the force for holding the displacement-side bracket 13 from both sides in the width direction by the support bracket 14 is adjusted, and the position of the steering wheel 1 is adjusted. Adjustable.

A more specific structure of a steering device provided with a steering wheel position adjusting device will be described with reference to FIGS.
The steering column 6 has a front portion of the outer column 18 disposed on the rear side and a rear portion of the inner column 19 disposed on the front side slidably fitted to each other so that the entire length thereof can be extended and contracted. Among these, a slit 20 is provided in the front part of the outer column 18 made by, for example, die-casting a light alloy, so that the inner diameter of the front part can be elastically expanded and contracted. Further, a pair of left and right sandwiched plate portions 21, 21 is provided in a portion sandwiching the slit 20 from both left and right sides, and the displacement-side bracket 13 is configured by the sandwiched plate portions 21, 21. Also, the holding plate portions 21 are formed with telescopic adjustment slots 16 long in the front-rear direction. Further, a pair of left and right support plate portions 22 provided on the support bracket 14 are arranged at portions where the displacement-side bracket 13 is sandwiched from both left and right sides, and the tilt shaft 12 is attached to the both support plate portions 22. Slots 15 for adjusting the tilt, which are long in the vertical direction in the shape of a partial arc centered on (see FIG. 12), are formed. Then, an adjusting rod 17 is inserted in the width direction in the both tilt adjusting slots 15, 15 and the telescopic adjusting slots 16, 16.

  Further, an adjusting lever 23 is provided at one end in the axial direction of the adjusting rod 17, a nut 24 is provided at the other end in the axial direction, a thrust bearing 25 is provided at a portion near one end in the axial direction, and a driving cam 26 and a driven cam 27 are provided. And a lock mechanism that expands and contracts the interval between the inner surfaces of the support plate portions 22 based on the swing of the adjustment lever 23. The adjusting rod 17 as described above can be moved up and down along the tilt adjusting slots 15, 15, but does not rotate with the swing of the adjusting lever 23.

  When adjusting the position of the steering wheel 1, the adjustment lever 23 is swung in a predetermined direction (generally downward) to rotate the drive-side cam 26 in the unlock direction. Then, the axial dimension of the cam device 28 is reduced, and the distance between the driven cam 27 and the nut 24 is increased. As a result, the contact pressure between the inner surfaces of the support plates 22, 22 and the outer surfaces of the sandwiched plate portions 21, 21 is reduced or lost, and at the same time, the front end of the outer column 18 is reduced. Inner diameter of the outer column 18 and the outer peripheral surface of the rear end of the inner column 19 are reduced. In this state, the vertical position and the front-rear position of the steering wheel 1 can be adjusted within a range in which the adjusting rod 17 can move within the tilt adjusting slots 15 and the telescopic adjusting slots 16.

  To hold the steering wheel 1 at a desired position, the adjustment lever 23 is swung in the opposite direction (generally upward) after the steering wheel 1 is moved to the desired position. As a result, the drive cam 26 is rotated in the lock direction, which is the rotation direction when switching to the locked state. Then, the axial dimension of the cam device 28 is increased, and the distance between the inner surfaces of the support plate portions 22 is reduced. In this state, the surface pressure of the contact portion between the inner side surfaces of the support plate portions 22 and the outer side surfaces of the sandwiched plate portions 21 and 21 increases, and at the same time, the inner diameter of the front end portion of the outer column 18. Elastically shrinks, the surface pressure of the contact portion between the inner peripheral surface of the front end of the outer column 18 and the outer peripheral surface of the rear end of the inner column 19 increases, and the steering wheel 1 is moved to the adjusted position. Can hold.

  In addition, although not shown, in order to increase the force for holding the position of the steering wheel 1 at the adjusted position, the outer surface portions or inner surface portions of the two support plate portions 22 constituting the support bracket 14 are provided. A structure in which a plurality of first and second friction plates are provided on a portion (an outer surface portion in the case of the structure shown in FIG. 1) is also conventionally known. In the case of such a structure, of the first and second friction plates, the first friction plate disposed vertically along the outer side surfaces of the support plate portions 22 and 22 has the tilt. The upper and lower slots on the friction plate side are aligned with the slots 15 for adjustment. The upper ends of the first friction plates are connected and supported on the outer surfaces of the upper ends of the two support plate portions 22 by, for example, set screws. Therefore, each of the first friction plates is not displaced in the vertical direction.

  On the other hand, of the first and second friction plates, the second friction plate disposed in the front-rear direction along the displacement-side bracket 13 is aligned with the telescopic adjustment slots 16. The front and rear slots on the friction plate side are formed. The front end of the second friction plate is connected and supported on the outer surface of the front end of the displacement-side bracket 13 by a second set screw. Therefore, the second friction plates are not displaced in the front-rear direction. Such a second friction plate and the first friction plate are disposed on the outer surfaces of the support plate portions 22 and 22 alternately.

By the way, in the case of the conventional steering wheel position adjusting device shown in FIGS. 15 and 16, the steering wheel 1 can be adjusted in position (unlocked state) and the position can be held (locked state). In addition, there are vertical gaps 29a, 29b exaggeratedly shown in FIG. 16 between the outer peripheral surface of the adjusting rod 17 and the inner surfaces (upper and lower surfaces) of the telescopic adjusting slots 16, 16. are doing.
On the other hand, in the case of the structure in which the first and second friction plates are provided as described above, in the unlocked state and the locked state, the outer peripheral surface of the adjusting rod 17 and the telescopic adjusting slots 16, 16 are provided. , And between the outer peripheral surface of the adjusting rod 17 and the inner surface (upper surface or lower surface) of the front / rear slot on the friction plate side of the second friction plate. Exists.

In the case of the position adjusting device for a steering wheel having the conventional structure shown in FIGS. 15 and 16, the gap between the outer peripheral surface of the adjusting rod 17 and the inner surfaces (front or rear surfaces) of the long holes 15 for tilt adjustment is provided. Has a front-rear gap (not shown).
On the other hand, in the case of the structure in which the first and second friction plates are provided as described above, in the unlocked state and the locked state, the outer peripheral surface of the adjusting rod 17 and the two tilt adjusting slots 15, 15. Front and rear surfaces, and between the outer peripheral surface of the adjusting rod 17 and the inner surface (front or rear surface) of the upper and lower slots on the friction plate side of the first friction plate. Exists.

As described above, when the vertical gaps 29a and 29b or the front-rear gap exist, the front-rear position and the vertical position of the steering wheel 1 can be smoothly adjusted.
However, in the locked state, the outer column 18 can be substantially displaced in the front-rear direction and the vertical direction by the vertical gaps 29a, 29b or the front-rear gap, so that the support of the steering wheel 1 is achieved. There is a possibility that the feeling of rigidity is reduced and the driver feels strange.

JP 2009-227181 A

  In view of the above circumstances, the present invention can smoothly adjust the position of the steering wheel in the unlocked state, and can adjust the position of the steering wheel in the front-rear direction or the vertical direction in the locked state. It has been invented to realize a structure capable of improving the feeling of support rigidity in at least one direction.

The steering wheel position adjusting device according to claim 1 among the steering wheel position adjusting devices of the present invention includes a steering column, a displacement side bracket, a first through hole, a fixed side bracket, and a pair of second side brackets. a through hole, and the adjusting rod is provided with a pressing portion of the pair, and the friction member, a third long hole, and expansion compression mechanism.
The steering column is provided around a steering shaft that fixes a steering wheel to an end portion, and rotatably supports the steering shaft.
The displacement side bracket is fixed to a part of the steering column.
The first through hole is provided in the displacement-side bracket so as to penetrate the displacement-side bracket in the width direction.
The fixed side bracket has a pair of support plate portions provided so as to sandwich the displacement side bracket from both sides in the width direction, and is fixed to the vehicle body side.
The two second through holes are provided in portions of the two support plate portions that are aligned with each other.
The adjusting rod is provided in a state where the first through hole and the second through holes are inserted in the width direction.
The two pressing portions are provided at portions protruding from the outer surfaces of the two support plate portions at both ends of the adjustment rod .
The friction member is a plate-like member, between the outer surface of the displacement-side bracket and the inner surface of at least one of the support plate portions, or of the two support plate portions. It is provided between the outer surface of at least one of the support plates and one of the pressing portions.
The third elongated hole is provided in the friction member so as to penetrate the friction member in the width direction, and is for inserting the adjustment rod.
The expansion / contraction mechanism is for expanding / contracting the interval between the two pressing portions.
Further, at least one of the first through-hole and the two second through-holes is an adjusting slot long in a position adjusting direction which is a direction in which the position of the steering wheel should be adjustable. . The position adjustment direction is a front-back direction when the position of the steering wheel is adjusted by a telescopic mechanism, and is a vertical direction when the position of the steering wheel is adjusted by a tilt mechanism.
Further, the third elongated hole is formed in a state that it is long in the position adjustment direction.
Further, when the expanding and contracting mechanism is expanded and contracted, the adjusting rod rotates.

In particular, in the case of the steering wheel position adjusting device of the present invention, the adjusting rod has a gap adjusting portion.
Further, the gap adjusting portion is disposed inside at least one of the adjusting long hole and the third long hole.
Then, in a state in which the position of the steering wheel can be held (locked state), a direction perpendicular to the position adjustment direction (the width direction of the long hole) between the outer peripheral surface of the gap adjusting portion and the inner surface of the one long hole. The gap between the outer peripheral surface of the gap adjusting portion and the inner surface of the one long hole in a state in which the adjustment rod is rotated in a state where the position of the steering wheel can be adjusted (an unlocked state). It is smaller than the gap in the direction orthogonal to the position adjustment direction.

When carrying out the position adjustment device of the steering wheel of such invention described above, specifically, as the position adjustment device of the scan tearing wheel, adopted that an adjustable telescopic function the front-rear position of the steering wheel You can do it. When such a configuration is adopted, the first through-hole is a long hole in the front-rear direction (a long hole for telescopic adjustment). And the said long hole for adjustment shall be the said 1st through-hole.

When carrying out the position adjustment device of the steering wheel of such invention described above, specifically, as the position adjustment device of the scan tearing wheel, what the vertical position of the steering wheel with an adjustable tilt feature Can be adopted. When such a configuration is adopted, the two second through holes are vertically elongated holes (tilt adjusting long holes). And the said long hole for adjustment shall be the said 2nd through-hole.

In a first aspect of the position adjusting device of a steering wheel of the present invention, the gap adjusting unit, the cross-sectional shape composed of a non-circular section of non-circular shape, the non-circular portion, the axially intermediate portion of the adjusting rod And a resin member externally fitted and fixed to the portion .

In the first aspect of the present invention, of the cross-sectional shape of the non-circular portion in a state in which the position of the steering wheel can be held , with respect to a virtual plane orthogonal to the axial direction of the adjustment rod, the dimension in the position adjustment direction. Is smaller than the dimension in the direction orthogonal to the position adjustment direction.

In the first aspect of the present invention, a configuration may be adopted in which the cross-sectional shape of the non-circular portion with respect to a virtual plane orthogonal to the axial direction of the adjustment rod is elliptical (or oval).

In the first aspect of the present invention, a convex portion protruding radially outward is formed at an intermediate portion in the axial direction of the adjusting rod, and a portion of the adjusting rod, which is aligned with the convex portion in the axial direction, A configuration that serves as the gap adjustment unit can be employed.
In a second aspect of the steering wheel position adjusting device of the present invention, the gap adjusting portion is constituted by a crank portion including an eccentric shaft portion eccentric with respect to a rotation center of the adjusting rod .

According to the steering wheel position adjusting device of the present invention configured as described above, it is possible to smoothly adjust the position of the steering wheel in the unlocked state, and to adjust the position of the steering wheel in the locked state. The support rigidity in at least one of the direction and the vertical direction can be improved.
That is, in the case of the present invention, the gap in the direction orthogonal to the position adjustment direction (the up-down direction or the front-rear direction) between the outer peripheral surface of the gap adjusting portion and the inner surface of the adjusting elongated hole or the third elongated hole is locked, It is smaller than the unlocked state. For this reason, in the unlocked state, the gap between the outer peripheral surface of the adjustment rod and the inner surfaces of the long slot for adjustment and the third long hole in the direction perpendicular to the direction of position adjustment is defined. Based on the presence, the adjusting rod can be smoothly displaced in the position adjusting direction inside the adjusting slot and the third slot. On the other hand, in the locked state, since the gap is smaller than the unlocked state with respect to the elongated hole in which the gap adjusting portion is disposed, the adjusting rod includes the adjusting elongated hole and the second elongated hole. The distance displaced in the direction orthogonal to the position adjustment direction inside the three slots can be reduced. As a result, the support rigidity of the steering wheel is improved, and the discomfort felt by the driver can be reduced (or reduced to zero).

FIG. 17A is a view similar to FIG. 16, showing a first example of the reference example of the present invention, showing a state in which the position of the steering wheel can be adjusted, and a state in which the position of the steering wheel can be held. Figure (B). Similarly, FIG. 2 is a partial cross-sectional side view showing the steering wheel position adjusting device as viewed from the left side in FIG. 1. Similarly, it is a diagram for explaining the relationship between the outer peripheral surface of the non-circular portion of the adjustment rod, the inner surface of the long hole for telescopic adjustment and the inner surface of the front and rear long holes on the friction plate side, it is possible to adjust the position of the steering wheel A schematic diagram (A) showing a state and a schematic diagram (B) showing a state in which the position of a steering wheel can be held. FIG. 4 is a view similar to FIG. 3 for explaining another example of the relationship between the outer peripheral surface of the non-circular portion, the inner surface of the telescopic adjusting long hole, and the inner surfaces of the front and rear long holes on the friction plate side. Similarly, FIG. 1 (A) is an enlarged view (A) of a part, and FIG. 1 (B) is an enlarged view of a part (B). The figure similar to FIG. 5 which shows the 1st example of Embodiment of this invention. The figure similar to FIG. 3 which shows the 2nd example of embodiment of this invention. FIG. 4 is a view similar to FIG. 3 for explaining another example of the relationship between the outer peripheral surface of the non-circular portion, the inner surface of the telescopic adjusting long hole, and the inner surfaces of the front and rear long holes on the friction plate side. The figure similar to FIG. 3 which shows the 2nd example of the reference example of this invention. The figure similar to FIG. 3 which shows the same 3rd example. The figure similar to FIG. 3 which shows the same 4th example. The figure similar to FIG. 3 which shows the same 5th example. It is a figure for demonstrating the relationship between the outer peripheral surface of the non-circular portion of the adjustment rod, the inner surface of the tilt adjustment slot and the inner surface of the friction plate side upper and lower slots, showing the sixth example. A schematic diagram (A) showing a state where the position can be adjusted, and a schematic diagram (B) showing a state where the position of the steering wheel can be held. FIG. 1 is a partial side view showing an example of a steering device to which the present invention is applied. FIG. 2 is a partial side view for specifically explaining the structure of the steering wheel position adjusting device. AA sectional drawing of FIG.

[First Example of Reference Example ]
A first example of a reference example of the present invention will be described with reference to FIGS. The steering device to which the steering wheel position adjusting device of the present reference example is applied transmits the rotation of the steering wheel 1 to the input shaft 3 of the steering gear unit 2 (see FIG. 14), similarly to the steering device shown in FIG. Along with the rotation of the input shaft 3, the pair of left and right tie rods 4 and 4 are pushed and pulled via a rack and pinion mechanism to impart a steering angle to the front wheels.

  The steering wheel 1 is supported and fixed to a rear end of a steering shaft 5, and the steering shaft 5 is rotatably supported by the steering column 6a in a state where a cylindrical steering column 6a is inserted in the axial direction. Have been. The front end of the steering shaft 5 is connected to the rear end of the intermediate shaft 8 via a universal joint 7, and the front end of the intermediate shaft 8 is connected to another universal joint 9 (see FIG. 14). The input shaft 3 is connected to the input shaft 3. Further, in order to apply a steering assist force to the steering shaft 5, an electric motor 30 serving as a power source is provided in front of the steering column 6a.

Studies on the specific structure of the steering apparatus of the present embodiment will be described with reference to FIG. The steering shaft 5, which supports and fixes the steering wheel 1 at the rear end, has a spline connection between the front end of the outer shaft 31 provided on the rear side (the right side in FIG. 14) and the rear end of the inner shaft 32 provided on the front side. By combining them, the front and rear positions of the outer shaft 31 can be adjusted. Such a steering shaft 5 is rotatably supported inside a steering column 6a formed by combining an outer column 18a and an inner column 19a in a telescopic shape (expandable / contractible). For this reason, in the case of this reference example, the rear end of the outer shaft 31 is supported on the inner peripheral surface of the rear end of the outer column 18a by a ball bearing 33a such as a single-row deep groove type. Two positions near the front end are supported by ball bearings 33b and 33c such as single row deep groove type inside the housing 10a fixed to the front end of the steering column 6a.

  The housing 10a is fixed to the front end of the steering column 6a (the inner column 19a). The upper front end of the housing 10a is connected to a vehicle body (not shown) via the tilt shaft 12a and the swing bracket 34. On the other hand, it is supported in such a manner that it can swing up and down around the tilt shaft 12a arranged in the width direction. In the housing 10a, a worm type speed reducer 37 having a worm 35 and a worm wheel 36, which constitutes an electric assist mechanism, is disposed. The worm 35 is driven to rotate by the electric motor 30 fixed to the housing 10a based on the torque acting on the inner shaft 32, thereby applying a steering assist force to the steering shaft 5. . Note that the structure of the electric power steering device has been widely known from the past, and is not the gist of the present invention, so that the detailed description is omitted. A portion of the front end of the steering shaft 5 protruding from the housing 10 a is connected to an intermediate shaft 8 via a universal joint 7. The intermediate shaft 8 also has a spline engaging portion provided at the intermediate portion so that the entire length can be expanded and contracted, so that the displacement of the universal joint 7 in the front-rear direction due to the swing of the steering column 6a can be absorbed.

  With the above configuration, the height position of the steering wheel 1 can be adjusted based on the swing displacement about the tilt shaft 12a, and based on the expansion and contraction of the steering shaft 5 and the steering column 6a, The front-rear position of the steering wheel 1 is adjustable. In order to fix the position of the steering wheel 1 at the adjusted position, a displacement-side bracket 13a is fixed to a part of the steering column 6a, and a support bracket 14a is fixed to the vehicle body. The two brackets 13a and 14a can be freely disengaged by operating the adjustment lever 23a.

  In the illustrated example, the displacement-side bracket 13a is attached to a portion of the outer column 18a, which is a cast product of an aluminum alloy (including a die-cast product), which constitutes the steering column 6a, near the lower end of the outer column 18a. And are provided integrally. Such a displacement side bracket 13a is constituted by a pair of sandwiched plate portions 21a, 21a provided in a state of being separated in the width direction. The upper end portions of the sandwiched plate portions 21a, 21a are joined to positions of the outer column 18a that sandwich a slit 20a formed in a front lower end portion in a front-rear direction from both left and right sides.

In addition, a telescopic adjustment slot 16a long in the front-rear direction for inserting an adjustment rod 17a, which will be described later, is provided in the two held plate portions 21a, 21a. It is formed so as to penetrate. Further, in the case of this reference example, the vertical dimension of the telescopic adjustment long hole 16a is wider at the outer half in the width direction than at the inner half in the width direction. To this end, step surfaces 38, 38 facing outward in the width direction are provided at the widthwise middle portions of the upper and lower sides of the inner peripheral surfaces of the telescopic adjustment slots 16a, 16a. Elastic sleeves 39 made of an elastomer such as rubber are mounted inside the widthwise outer halves of the telescopic adjustment slots 16a. In the state where the respective elastic sleeves 39, 39 are attached to the telescopic adjustment slots 16a, 16a in this manner, the vertical dimension of the inner peripheral surface of each of the elastic sleeves 39, 39 (the distance between the upper and lower surfaces) ) Is equal to (or approximately equal to) the vertical dimension (the distance between the upper and lower surfaces) between the upper surface and the lower surface of the inner half of the telescopic adjustment slots 16a, 16a in the width direction. For such present embodiment, the telescopic adjustment long hole 16a, and the inner surface of the width-direction outer half of 16a, has an inner peripheral surface of the elastic sleeve 39 and 39, it constitutes the inner surface of the pressure regulating paragraph break slot ing. Note that a configuration in which the elastic sleeves 39 and 39 are omitted may be employed.

  The support bracket 14a includes a mounting plate portion 40 formed by bending a metal plate, and a pair of left and right support plate portions 22a, 22a hanging down from the mounting plate portion 40. The two supporting plate portions 22a, 22a are arranged so as to sandwich the sandwiched plate portions 21a, 21a of the displacement-side bracket 13a from both sides in the width direction. The support bracket 14a is supported by the mounting plate portion 40 via the pair of detachable capsules 41, 41 with respect to the vehicle body such that the support bracket 14a can be detached forward at the time of a secondary collision. Specifically, a pair of cutout grooves 42, 42 opened at the rear end edge are formed at both ends in the width direction of the mounting plate portion 40, and each of the detachable capsules fixed to the vehicle body by a coupling member (not shown). 41, 41 are engaged with the respective notched grooves 42, 42. The support plates 22a, 22a are formed with tilt adjusting slots 15a, 15a which are partially arc-shaped about the tilt shaft 12a and which are long in the vertical direction. The long holes 15a for tilt adjustment may be formed not in a partial arc shape but in a vertically long rectangular shape.

Further, in the case of the present reference example, one first friction plate 43, 43 and two second friction plates 44, 44 are disposed on the outer surface portions of the support plate portions 22a, 22a, respectively. Has been established.
Of the first and second friction plates 43, 44, the first friction plate 43 vertically arranged along the outer surface of the two support plate portions 22a, 22a has the two support plate portions 22a. , 22a are formed with upper and lower friction plate side upper and lower holes 45, 45 (see FIGS. 2 and 5) which are aligned with the tilt adjusting long holes 15a, 15a formed in the tilt adjusting holes 15a, 15a. The upper ends of the first friction plates 43, 43 having such a configuration are connected to and supported by the first set screws 46, 46 on the outer surfaces of the upper ends of the support plate portions 22a, 22a. I have. Therefore, the first friction plates 43 are not displaced in the vertical direction.

  On the other hand, each of the second friction plates 44, 44 disposed in the front-rear direction along the displacement-side bracket 13a has two telescopic adjustment slots 16a, 16a formed in the displacement-side bracket 13a, respectively. The friction plate side front and rear long holes 47, 47 (see FIGS. 2 and 5) are formed so as to be aligned. The front ends of the second friction plates 44, 44, each having such a configuration, are connected and supported by the second set screw 48 on the outer surface of the front end of the displacement-side bracket 13a. Therefore, the second friction plates 44 are not displaced in the front-rear direction. Such second friction plates 44, 44 and the first friction plates 43 are disposed on the outer surfaces of the support plate portions 22a, 22a in an alternately superposed state. .

The tilt adjusting slots 15a, 15a, the telescopic adjusting slots 16a, 16a, the friction plate side upper and lower slots 45, 45, and the friction plate side front and rear slots 47, 47, The adjustment rod 17a is inserted in the width direction.
In the case of this reference example, a head 49 formed at the other axial end (the right end in FIG. 1) of the adjusting rod 17a and the other support plate 22a (the right support plate 22a in FIG. 1). A) a pressing plate 50 having a substantially U-shaped cross section at a portion between the second friction plates 44, 44 arranged on the outer side in the width direction and the second friction plate 44 arranged on the outermost side in the width direction. Is arranged.

On the other hand, a nut 24a screwed into a male screw portion 51 formed at one axial end (left end in FIG. 1) of the outer peripheral surface of the adjusting rod 17a, and one support plate portion 22a (left side in FIG. 1) Of the second friction plates 44, 44 arranged on the outer side in the width direction of the support plate portion 22a), a cylindrical portion is provided between the second friction plates 44 arranged on the outermost side in the width direction. The sleeve 52 is externally fitted and fixed. A driven cam 27a, a driving cam 26a, an adjusting lever 23a, and a thrust bearing 25a are arranged radially outside the sleeve 52 in this order from the one support plate portion 22a. .
In the case of the present embodiment, and the pressing plate 50 and the driven cam 27a corresponds to the pressing pressure part.

The driven cam 27a, together with the driving-side cam 26a, and constitutes a cams device 28a. The driven side cam 27a is made of sintered metal and has a center hole 53 for inserting the sleeve 52 externally fitted to an axial end of the adjusting rod 17a, and has a substantially rectangular shape as a whole. It has a plate shape. A driven cam surface, which is an uneven surface in the circumferential direction, is formed on the outer surface (the left side surface in FIG. 1) of the driven cam 27a. Further, on the inner side surface of the driven side cam 27a, a pressing convex portion 54 protruding inward in the width direction is provided. Such a driven cam 27a rotates relative to the adjusting rod 17a and the sleeve 52 with the other end in the axial direction (the right end in FIG. 1) of the sleeve 52 inserted into the center hole 53. It is fitted outside where possible. In this state, the pressing convex portion 54 is the second friction plate 44, 44 disposed outside the width direction of the one support plate portion 22a in the width direction. The friction plate 44 is opposed to the outer surface in the width direction.

On the other hand, the drive side cam 26a is made of sintered metal, has a center hole 55 for press-fitting an axially intermediate portion of the sleeve 52, and has a substantially circular plate shape as a whole. A drive-side cam surface, which is an uneven surface in the circumferential direction, is formed on the inner side surface (the right side surface in FIG. 1) of the drive-side cam 26a. A drive-side engaging projection 56 is provided on the outer surface of the drive-side cam 26a and protrudes outward in the width direction from the outer surface. Such a drive side cam 26a is assembled to the adjusting rod 17a in a state where the center hole 55 is externally fitted and fixed to the outer peripheral surface of the sleeve 52. In this state, the drive-side engagement protrusion 56 is engaged with an engagement hole 57 formed at the base end of the adjustment lever 23a. In this way, the drive cam 26a can rotate integrally with the adjustment lever 23a.
In the case of such a reference example, when the adjustment lever 23a rotates, the adjustment rod 17a rotates via the drive cam 26a and the sleeve 52.

In particular, the present case of reference example, the two positions is axial end portion close of the adjusting rod 17a, corresponds to a gap between the adjustment portion, a pair of elliptical shape as the cross-sectional shape shown in FIG. 3 non Circular portions 58, 58 are provided. Specifically, the adjusting rod 17a includes a male screw part 51 formed on the outer peripheral surface of one end in the axial direction, one non-circular part 58 provided on the other axial side of the male screw part 51, A cylindrical surface portion 59 provided on the outer peripheral surface on the other axial side of one non-circular portion 58, the other non-circular portion 58 provided on the other axial side of the cylindrical surface portion 59, and the other end portion in the axial direction. And a head 49 provided. In other words, the adjusting rod 17a has a male screw part 51 and a head 49 at both ends in the axial direction, and a pair of non-circular parts 58, 58 near both ends in the axial direction. A cylindrical surface portion 59 is provided at a middle portion in the direction (a portion between the non-circular portions 58, 58). In the case of the present reference example, the two non-circular portions 58, 58 are formed by inserting the second friction plates 44 from inside the telescopic adjustment slots 16a, 16a of the sandwiched plate portions 21a, 21a. Of the second friction plates 44 disposed on the outside in the width direction among the 44, the second friction plates 44 are disposed in portions that are hooked inside the front and rear long holes 47 on the friction plate side. Note that a configuration in which only one of the non-circular portions 58 is provided may be employed.

Specifically, in a state where the position of the steering wheel 1 can be adjusted (unlocked state), the directions of the major axes of the non-circular portions 58, 58 are aligned with the telescopic adjustment slots 16a, 16a and the respective second friction plate side longitudinal slot arranged direction 47 of the friction plates 44, 44 (horizontal direction in FIG. 3, a longitudinal direction of the vehicle body, position adjusting direction) with respect to, the unlocked state When the steering wheel 1 shifts to a state in which the position of the steering wheel 1 can be held (locked state), a direction inclined by 45 ° in the rotation direction (clockwise direction in FIG. 3) of the driving side cam 26a constituting the cam device 28a. The adjusting rod 17a is arranged so as to coincide. In the unlocked state, the convex portion forming the driving side cam surface of the driving side cam 26a is axially opposed to the concave portion forming the driven side cam surface of the driven side cam 27a, The cam device 28a has a reduced axial dimension.

Further, in the case of the present reference example, in the locked state, the longitudinal direction of the two non-circular portions 58, 58 coincides with the direction orthogonal to the direction in which the two telescopic adjustment slots 16a, 16a are arranged. The configuration of the cam device 28a is devised (to regulate the relative displacement of the driving cam 26a with respect to the driven cam 27a), and the adjusting rod 17a is arranged. That is, when shifting from the unlocked state to the locked state, the drive side cam 26a and the adjusting rod 17a rotate by 45 ° about their own central axis as the adjusting lever 23a swings (rotates). Then, each convex portion forming the driving side cam surface of the driving side cam 26a rides over each convex portion forming the driven side cam surface of the driven side cam 27a (becomes a state facing each convex portion). ), The axial dimension of the cam device 28a is increased. Further, with the rotation of the adjusting rod 17a, the two non-circular portions 58, 58 are moved from the state shown in FIG. 3A to the inside of the two telescopic adjusting long holes 16a, 16a from FIG. (Rotate clockwise in FIG. 3 by 45 °). In the unlocked state and the locked state, the positional relationship between the two non-circular portions 58, 58 with respect to the telescopic adjustment slots 16a, 16a is not limited to the configuration shown in FIG. The configuration shown in FIG.

In the unlocked state shown in FIG. 3A, the upper and lower edges of the outer peripheral surfaces of the non-circular portions 58, 58 and the upper surfaces of the inner peripheral surfaces of the elastic sleeves 39, 39 and between the lower surface, each of the vertical dimension _{L 60a,} an _{L 60b,} 1 pair of vertical clearance 60a, 60b are present. In the case of this reference example, the vertical dimensions of the vertical gaps 60a and 60b are equal ( _L60a = _L60b ). However, the vertical dimensions of the vertical gaps 60a and 60b may be different. Such a vertical gap is appropriately set in relation to the structure of the steering wheel position adjusting device.

  When the configuration in which the elastic sleeves 39, 39 are omitted is employed, in the unlocked state shown in FIG. 3A, the upper and lower edges of the outer peripheral surfaces of the two non-circular portions 58, 58. Between the upper and lower surfaces of the telescopic adjustment slots 16a, 16a. When such a configuration is adopted, it is possible to adopt a configuration in which the dimensions of the two vertical gaps are equal or a configuration in which the dimensions are different.

On the other hand, in the locked state shown in FIG. 3B, the upper and lower edges (both longitudinal edges) of the outer peripheral surfaces of the non-circular portions 58, 58 and the inner peripheral surfaces of the elastic sleeves 39, 39. The upper surface and the lower surface of the surfaces are in contact with each other. In other words, the upper and lower edges (both longitudinal edges) of the outer peripheral surfaces of the non-circular portions 58, 58, and the upper and lower surfaces of the inner peripheral surfaces of the elastic sleeves 39, 39 The vertical dimension of the vertical gap between them is zero.
Then, (in this reference example, zero) the sum of the dimensions of the in the both vertical clearance in the lock state, the in the unlocked state is the sum of the dimensions in both the vertical direction gap _60a, 60b L 60a ₊ L _It is smaller than _60b .
In the case of the present embodiment, even in a locked state, although with zero vertical clearance, such as described above, for example, as shown in FIG. 4, adopt a configuration in which the upper and lower direction gap is larger than zero You can do it.

In the case of the present embodiment, also, in the unlocked state shown in FIG. 3 (A), wherein the upper edge and lower edge of the outer peripheral surfaces of the non-circular portion 58, the respective second friction plates The vertical dimension L _61a , L _61b between the upper and lower surfaces of the front and rear long holes 47, 47 of the friction plate 44 is also the vertical dimension L _60a of the vertical gap 60 a, 60 b. There is a pair of vertical gaps 61a, 61b equal to L _60b .

On the other hand, in the locked state shown in FIG. 3B, the upper end edge and the lower end edge (both longitudinal edges) of the outer peripheral surfaces of the two non-circular portions 58, 58 and the second friction plates 44, 44 The upper and lower surfaces of the friction plate side front and rear long holes 47 are in contact with each other. In other words, the upper end edge and the lower end edge (both longitudinal edges) of the outer peripheral surfaces of the non-circular portions 58, 58 and the front and rear slots on the respective friction plate sides of the second friction plates 44, 44. The vertical dimension of the vertical gap between the upper and lower surfaces of 47 and 47 is set to zero.
In the locked state, the upper and lower edges (longer ends in the longitudinal direction) of the outer peripheral surfaces of the non-circular portions 58, 58, and the front and rear slots on the friction plate side of the second friction plates 44, 44. (in this reference example, zero) the sum of the vertical dimension of the gap existing between the upper and lower surfaces of 47 and 47, said in the unlocked state both the vertical direction gap 61a, the dimensions of 61b sums ( L _61a + L _61b ).

According to the position adjusting device of a steering wheel of the present embodiment having the above-described configuration, it is possible to smoothly carry out the longitudinal position adjustment of in the steering wheel in the unlocked state and, in the steering locked state The support rigidity in the vertical direction of the wheel can be improved.
That is, in the case of this reference example, in the locked state, the upper and lower edges of the outer peripheral surfaces of the non-circular portions 58, 58 and the inner peripheral surfaces of the elastic sleeves 39, 39 (in this reference example, zero) vertical sum of gap existing between the and the upper end edge and the lower edge of the outer circumferential surfaces of the non-circular portion 58, the respective second friction plates 44 (in the case of the present reference example, zero) vertical sum of gap existing between the upper and lower surfaces of the friction plates side longitudinal slot 47, 47 44, the two vertical gaps 60a in the unlocked state, The sum (L _60a + L _60b ) of the vertical gaps _60b and the sum (L _61a + L _61b ) of the vertical gaps 61a, 61b are both smaller. For this reason, in the unlocked state, based on the presence of the two vertical gaps 60a, 60b and the two vertical gaps 61a, 61b, the adjusting rod 17a moves the telescopic adjusting slots 16a, 16a and It is possible to smoothly displace in the front-rear direction inside the front and rear long holes 47, 47 on the friction plate side. On the other hand, in the locked state, the upper and lower edges of the outer peripheral surfaces of the non-circular portions 58, 58 are the upper and lower surfaces of the inner peripheral surfaces of the elastic sleeves 39, 39, and By contacting the upper and lower surfaces of the friction plate-side front and rear long holes 47, 47, the adjusting rod 17a is positioned inside the two telescopic adjusting long holes 16a, 16a, and each of the friction plate-side front and rear long holes 47, The distance displaceable in the vertical direction can be reduced to zero inside 47. As a result, the support rigidity of the steering wheel 1 is improved, and the uncomfortable feeling felt by the driver can be reduced (or reduced to zero).

The structure of the present embodiment, such as described above, the both non-circular portion 58 is disposed inside the two telescopic adjustment long holes 16a, 16a and the friction plates side longitudinal slot 47, 47 The configuration is adopted. However, the non-circular portions 58, 58 are arranged only inside one of the telescopic adjustment slots 16a, 16a and the friction plate side front slots 47, 47. Even when the configuration is adopted, the above-described functions and effects can be obtained. When the non-circular portion is arranged only inside the telescopic adjusting slot, the non-circular portion is arranged only inside one of the telescopic adjusting slots 16a, 16a. The part 58 can also be arranged. In the case where the non-circular portion is arranged only inside the front / rear elongated holes on the friction plate side, at least one of the second friction plates 44, 44 has a friction plate of the second friction plate 44. The non-circular portion 58 may be arranged inside the front and rear long holes 47.

[ First Example of Embodiment]
A first example of the embodiment of the present invention will be described with reference to FIG. The basic configuration of a steering device to which the steering wheel position adjusting device of the present example is applied is substantially the same as the steering device of the first example of the reference example described above. Hereinafter, a characteristic portion of the steering device of the present embodiment will be described.

In this example, the two positions of the axially intermediate portion of the adjusting rod 17b, is provided with a crank portion 62 of the pair corresponding to the gap between the adjustment part. FIG. 6 shows only one of the pair of crank portions 62. Hereinafter, the structure of the one crank portion 62 will be described, but the structure of the other crank portion will be described with respect to the structure of the one crank portion 62 in the axial direction of the adjusting rod 17b (FIG. 6). (Left-right direction).

The adjusting rod 17b includes, in order from one end in the axial direction, a male screw portion 51 (see FIG. 1), one shaft portion (not shown), one inclined continuous portion (not shown), and an eccentric shaft portion 63. The other inclined continuous portion 64, the other shaft portion 65, and the head 49 are provided. Note that the one shaft portion and the other shaft portion 65 are provided coaxially, and the center axis of the both shaft portions 65 coincides with the center axis of the adjustment rod 17b.
The eccentric shaft portion 63 has a circular cross section, and is provided in a state where the center axis is eccentric with respect to the center axis of the adjustment rod 17b (one shaft portion and the other shaft portion 65). One end in the axial direction of the eccentric shaft portion 63 is continuous with the other end in the axial direction of the one shaft portion via the one inclined continuous portion. On the other hand, the other end of the eccentric shaft 63 in the axial direction is continuous with the one end of the other shaft 65 in the axial direction via the other inclined continuous portion 64.

In the case of this example, the one crank portion 62 is configured by a portion near the one axial end of the other shaft portion 65, the other inclined continuous portion 64, and a portion near the other axial end of the eccentric shaft portion 63. are doing. The other crank portion includes a portion of the one shaft portion near the other end in the axial direction, the other inclined continuous portion, and a portion of the eccentric shaft portion 63 near the one end in the axial direction.
In the case of the present example, the two crank portions 62 are connected to the inner half portions in the width direction of the telescopic adjustment slots 16a, 16a of the sandwiched plate portions 21a, 21a constituting the displacement-side bracket 13a (see FIG. 1). It is located inside. Also in the case of this example, an elastic sleeve 39 made of an elastomer such as rubber is attached to the inside of the outer half in the width direction of the telescopic adjusting slots 16a. However, in the case of this example, the two crank portions 62 are not disposed inside the elastic sleeve 39. Incidentally, a configuration in which the two crank portions 62 are arranged inside the elastic sleeve 39 may be adopted.

Specifically, as shown in FIG. 6A, in a state where the position of the steering wheel 1 can be adjusted (an unlocked state), the adjusting rod 17b of the eccentric shaft portion 63 constituting the both crank portions 62 ( eccentric direction with respect to the central axis of the one shaft portion 65 of the shaft portion and the other) is, the two telescopic adjustment long hole 16a, a laying direction (front-rear direction of 16a, relative position adjusting direction) The direction inclined by 45 ° with respect to the rotation direction of the driving cam 26a constituting the cam device 28a (see FIG. 1) when shifting from the unlocked state to the state in which the position of the steering wheel 1 can be held (locked state). The adjusting rod 17b is arranged so as to coincide with the above. In the case of the present example, in the locked state shown in FIG. 6B, the eccentric shaft portions 63 constituting the both crank portions 62 are orthogonal to the direction in which the two telescopic adjustment slots 16a, 16a are arranged. The configuration of the cam device 28a is devised so as to coincide with the direction (vertical direction) (to regulate the relative displacement of the driving side cam 26a with respect to the driven side cam 27a), and the adjusting rod 17b is arranged. I have. That is, when shifting from the unlocked state to the locked state, the drive side cam 26a and the adjustment rod 17b are moved by their own central axes (the one axis) as the adjustment lever 23a (see FIG. 1) swings (rotates). (The central axis of the shaft portion and the other shaft portion 65). Then, the convex portion forming the drive side cam surface of the drive side cam 26a rides on the convex portion forming the driven side cam surface of the driven side cam 27a (becomes a state facing the convex portion), and The axial dimension of the cam device 28a increases. Further, with the rotation of the adjusting rod 17b, the eccentric shaft portions 63 constituting the both crank portions 62 are positioned inside the two telescopic adjusting slots 16a, 16a from the state shown in FIG. The state shifts (rotates) to the state shown in FIG.

  Also, in the unlocked state shown in FIG. 6A, the upper end edges of the outer peripheral surfaces of the crank portions 62 and the upper surfaces of the inner halves of the telescopic adjustment long holes 16a, 16a in the width direction (the both ends). A vertical gap 66 exists between the upper surface of the telescopic adjustment slots 16a, 16a and the portion where the elastic sleeve 39 is not mounted). In the case of this example, the outer column 18a (see FIG. 1) and the displacement side bracket 13a are attached upward by a spring (not shown) in order to assist the operation in adjusting the vertical position of the steering wheel 1. I'm going. For this reason, in the unlocked state shown in FIG. 6A, the lower end edges of the outer peripheral surfaces of the crank portions 62 and the lower surfaces of the inner halves in the width direction of the telescopic adjustment long holes 16a, 16a (the There is no gap between the lower surface of both telescopic adjustment slots 16a, 16a (the portion where the elastic sleeve 39 is not mounted).

  On the other hand, in the locked state shown in FIG. 6B, the upper edges of the outer peripheral surfaces of the two crank portions 62 (the upper edges of the eccentric shaft portions 63) and the widths of the two telescopic adjusting slots 16a, 16a. There is no gap between the upper surface of the inner half part in the direction (the upper surface of the long holes 16a, 16a for which the elastic sleeve 39 is not mounted). In other words, in the locked state shown in FIG. 6B, the upper end edges of the outer peripheral surfaces of the two crank portions 62 (the upper end edges of the eccentric shaft portions 63) and the two long holes for adjusting the telescopic portions. The upper surfaces of the inner halves in the width direction of 16a, 16a are in contact with each other. In the locked state shown in FIG. 6B, between the lower end edges of the outer peripheral surfaces of the two crank portions 62 and the lower surfaces of the inner halves of the telescopic adjustment slots 16a, 16a in the width direction. There are no gaps. In other words, in the locked state shown in FIG. 6B, the lower end edges of the outer peripheral surfaces of the crank portions 62 and the inner halves of the telescopic adjustment slots 16a, 16a in the width direction are formed. The lower surface is in contact.

  That is, the sum of the gaps (distances) between the upper and lower edges of the outer peripheral surfaces of the crank portions 62 and the upper and lower surfaces of the telescopic adjustment slots 16a, 16a is determined in the locked state and unlocked. It is smaller than the state.

In the case of this example, a gap exists between the lower end edges of the outer peripheral surfaces of the crank portions 62 and the lower surfaces of the telescopic adjustment slots 16a, 16a in the unlocked state and the locked state. Not adopted. However, it is also possible to adopt a configuration in which a vertical gap exists between the lower end edges of the outer peripheral surfaces of the crank portions 62 and the lower surfaces of the telescopic adjustment long holes 16a, 16a in the unlocked state. it can. Even when such a configuration is adopted, in the locked state, as shown in FIG. 6B, the upper end edge and the lower end edge of the outer peripheral surface of the both crank portions 62 and the two telescopic adjustment slots 16a, There is no gap between the upper and lower surfaces of 16a (or a gap smaller than the gap in the locked state).
Further, an adjusting rod provided with only one of the two crank portions 62 may be employed.
Further, it is also possible to adopt a configuration in which the two crank portions 62 are arranged inside the front and rear long holes 47, 47 on the friction plate side of the second friction plates 44, 44.
Other structures, operations, and effects are the same as those of the first example of the above-described reference example .

[ Second Example of Embodiment]
A second example of the embodiment of the present invention will be described with reference to FIG. Also in the case of this example, a pair of non-circular portions 58a are provided at two positions in the axial direction of the adjustment rod 17c, similarly to the adjustment rod 17a of the first example of the reference example described above.

In the case of this example, a pair of non-circular resin parts 67 are externally fitted and fixed to two positions in the axial middle part of the outer peripheral surface of the adjustment rod 17c so as to cover both positions. The portion of the adjusting rod 17c where the non-circular resin portions 67 are externally fitted is fixed as the non-circular portions 58a. In the case of the present example, the cross-sectional shape of the outer peripheral surfaces of the non-circular resin portions 67 is an elliptical shape.
Also in the case of this example, the two non-circular portions 58a are arranged inside the telescopic adjustment long holes 16a, 16a of the sandwiched plate portions 21a, 21a constituting the displacement-side bracket 13a (see FIG. 1). are doing.

When this embodiment is carried out, the elastic sleeves 39, 39 (FIG. 1) are provided inside the widthwise outer halves of the telescopic adjustment slots 16a, 16a in the same manner as in the first embodiment of the above-described reference embodiment . (See Reference).

In the case of the present example, in the locked state, the upper and lower edges (both longitudinal edges) of the outer peripheral surfaces of the non-circular portions 58a, and the upper and lower surfaces of the telescopic adjustment slots 16a, 16a. When the elastic sleeve 39 (see FIG. 1) is provided, the upper surface and the lower surface of the elastic sleeve 39 are in contact with each other. However, in the locked state, the upper and lower edges (both longitudinal edges) of the outer peripheral surfaces of the non-circular portions 58a, and the upper and lower surfaces of the telescopic adjustment slots 16a, 16a {the elastic sleeve 39}. In this case, the vertical gaps 68a, 68b as shown in FIG. 8B may be provided between the upper surface and the lower surface の of the elastic sleeve 39.
Other structures, operations, and effects are the same as those of the first example of the above-described reference example .

[ Second example of reference example ]
A second example of the reference example of the present invention will be described with reference to FIG. Also in the case of the present reference example, a pair of non-circular portions 58b are provided at two axial positions of the adjustment rod 17d, similarly to the adjustment rod 17a of the first example of the reference example described above.

Specifically, in the case of the present reference example, a pair of two positions that are opposite to each other in the radial direction of the adjustment rod 17d among two positions separated in the axial direction of the intermediate portion of the adjustment rod 17d in the axial direction are paired. Eccentric convex portions 69, 69 are formed.
Each of the two eccentric convex portions 69 has a curvature larger than a curvature of an outer peripheral surface of a portion of the adjusting rod 17d where the both eccentric convex portions 69, 69 are provided, and the adjusting rod 17d It has a central axis _{O 69} eccentric to the central axis _{O 17d} of.
The portion of the adjusting rod 17d where the eccentric convex portions 69, 69 are formed is the non-circular portion 58b having a substantially elliptical cross section.
Also in the case of the present reference example, the two non-circular portions 58b are formed by inserting the two non-circular portions 58b inside the telescopic adjustment slots 16a, 16a of the sandwiched plate portions 21a, 21a constituting the displacement-side bracket 13a (see FIG. 1). Has been placed.

When the present reference example, (eccentricity relative to the center axis of the adjusting rod 17d, the amount of protrusion) the two eccentric protrusions 69, 69 each other shapes can also be different from each other. Further, a structure in which only one of the two eccentric convex portions 69, 69 is provided can be adopted.
Other structures, operations, and effects are the same as those of the first example of the reference example and the second example of the embodiment described above.

[ Third example of reference example ]
A third example of the reference example of the present invention will be described with reference to FIG. Also in the case of this reference example, a pair of non-circular portions 58c are provided at two axial positions of the adjustment rod 17e, similarly to the adjustment rod 17a of the first example of the above-described reference example .

Specifically, in the case of the present reference example, the eccentric convex portion 69a is formed at one position in the circumferential direction among two positions separated in the axial direction of the intermediate portion of the adjustment rod 17e in the axial direction.
The eccentric convex portion 69a has a curvature larger than the curvature of the outer peripheral surface of the portion of the adjusting rod 17e where the eccentric convex portion 69a is provided (the outer peripheral surface of the portion excluding the eccentric convex portion 69a). The adjusting rod 17e has a center axis _O69a eccentric with respect to the center axis _O17e .
The portion of the adjusting rod 17e where the eccentric convex portion 69a is provided is the two non-circular portions 58c.
Also in the case of such a reference example, the two non-circular portions 58c are provided inside the two telescopic adjustment slots 16a, 16a of both the sandwiched plate portions 21a, 21a constituting the displacement-side bracket 13a (see FIG. 1). Has been placed.

In the case of the present reference example, in the unlocked state shown in FIG. 10A, the upper and lower edges of the outer peripheral surfaces of the non-circular portions 58c and the telescopic adjustment slots 16a, 16a are formed. A pair of vertical gaps 70a and 70b exist between the upper and lower surfaces. On the other hand, in the locked state shown in FIG. 10B, the upper end edges of the outer peripheral surfaces of the non-circular portions 58c abut on the upper surfaces of the telescopic adjustment long holes 16a, 16a. A vertical gap 70b exists between the lower edge of the outer peripheral surface of the circular portion 58c and the lower surfaces of the telescopic adjustment slots 16a, 16a.
Other structures, operations, and effects are the same as those of the first example of the reference example and the second example of the embodiment described above.

[ Fourth example of reference example ]
A fourth example of the reference example of the present invention will be described with reference to FIG. Also in this reference example is provided with non-circular portion 58d of the pair to similarly adjusted and the rod 17a, the axial two positions of the adjusting rod 17f of the first example of the reference example described above.

Specifically, in the case of the present reference example, the eccentric convex portion 69b is formed at one position in the circumferential direction at two positions separated in the axial direction at the axially intermediate portion of the adjusting rod 17f.
The eccentric convex portion 69b has a curvature larger than the curvature of the outer peripheral surface of a portion of the adjusting rod 17f where the eccentric convex portion 69b is provided (a portion excluding the eccentric convex portion 69b), and The adjusting rod 17f has a central axis _O69b eccentric with respect to a central axis _O17f .
The part of the adjusting rod 17f where the eccentric convex part 69b is provided is the two non-circular parts 58d.
Also in the case of this reference example, the two non-circular portions 58d are formed by inserting the two non-circular portions 58d inside the two telescopic adjustment slots 16a, 16a of both the sandwiched plate portions 21a, 21a constituting the displacement-side bracket 13a (see FIG. 1). Has been placed.

In the case of this reference example, in the unlocked state shown in FIG. 11A, the upper end edges of the outer peripheral surfaces of the two non-circular portions 58d abut on the upper surfaces of the telescopic adjustment slots 16a, 16a. At the same time, a vertical gap 71 exists between the lower end edges of the outer peripheral surfaces of the two non-circular portions 58d and the lower surfaces of the telescopic adjustment slots 16a, 16a. That is, when the present embodiment, in order to assist the operation in adjusting the vertical position of the steering wheel 1, urges the outer column 18a and the displacement side bracket 13a (see FIG. 1) to the upper works ( For example, since no spring or the like is provided, in an unlocked state, the outer column 18a and the displacement-side bracket 13a hang down under the influence of gravity, and the upper end edges of the outer peripheral surfaces of the two non-circular portions 58d, The upper surfaces of the telescopic adjustment slots 16a, 16a are in contact with each other.

  On the other hand, in the locked state shown in FIG. 11B, the upper and lower edges of the outer peripheral surfaces of the two non-circular portions 58d are in contact with the upper and lower surfaces of the telescopic adjustment slots 16a, 16a. ing.

Structure of this reference example, such as described above, from the unlocked state, when moving to the locked state, the one of the outer surfaces of the non-circular portion 58d, the two telescopic adjustment long hole 16a, in contact with the upper surface of 16a equivalents and has portions, said adjustment center axis of the rod 17f (rotation center) for a portion not decentered with respect to the O _17f, the portion where the abutting may have never displaced in the vertical direction. Therefore, even if the adjustment rod 17f is rotated, the outer column 18a and the displacement-side bracket 13a are not displaced in the up-down direction, so that when shifting from the unlocked state to the locked state, the driver does not feel uncomfortable. .
Other structures, operations, and effects are the same as those of the first example of the reference example and the second example of the embodiment described above.

[ Fifth Example of Reference Example ]
A fifth example of the reference example of the present invention will be described with reference to FIG. This reference example, urges example, in order to assist the operation in adjusting the vertical position of the steering wheel 1 (see FIG. 14), the outer column 18a and the displacement side bracket 13a (see FIG. 1) upward This is applied to a structure having a mechanism for performing the following. In the case of such a present embodiment, it is provided with a regulating rod 17a and similarly, the non-circular portion 58e of the pair in the axial direction two positions of the adjusting rod 17g of the first example of the reference example described above.

Specifically, in the case of the present reference example, the eccentric convex portion 69c is formed at one position in the circumferential direction at two positions separated in the axial direction of the intermediate portion of the adjusting rod 17g in the axial direction.
The eccentric protrusion 69c has a curvature larger than the curvature of the outer peripheral surface of a portion of the adjustment rod 17g where the eccentric protrusion 69c is provided (a portion excluding the eccentric protrusion 69c), and The adjusting rod 17g has a central axis _O69c eccentric with respect to a central axis _O17g .
The portion of the adjusting rod 17g where the eccentric convex portion 69c is provided is the two non-circular portions 58e.
Also in the case of the present reference example, the two non-circular portions 58e are formed by inserting the two non-circular portions 58e inside the telescopic adjustment slots 16a, 16a of the sandwiched plate portions 21a, 21a constituting the displacement-side bracket 13a (see FIG. 1). Has been placed.

In the case of this reference example, in the unlocked state shown in FIG. 12A, the lower end edges of the outer peripheral surfaces of the non-circular portions 58e abut against the lower surfaces of the telescopic adjustment slots 16a, 16a. At the same time, a vertical gap 71 exists between the upper edge of the outer peripheral surface of the non-circular portions 58e and the upper surfaces of the telescopic adjustment slots 16a. That is, in the case of the present reference example, since the structure for assisting the operation of adjusting the vertical position of the steering wheel 1 is provided, the outer column 18a and the displacement side bracket 13a are unlocked in the unlocked state. By being pushed upward, the lower end edges of the outer peripheral surfaces of the two non-circular portions 58e are in contact with the lower surfaces of the telescopic adjustment slots 16a, 16a.

  On the other hand, in the locked state shown in FIG. 12B, the upper and lower edges of the outer peripheral surfaces of the two non-circular portions 58e are brought into contact with the upper and lower surfaces of the telescopic adjustment slots 16a, 16a. Let me.

Structure of this reference example, such as described above, from the unlocked state, when moving to the locked state, the one of the outer surfaces of the non-circular portion 58e, the two telescopic adjustment long hole 16a, in contact with the lower surface of 16a equivalents and has portions, said adjusting rod 17g central axis of (the rotation center) O _17g for a portion not eccentric with respect to the portion where the abutting may have never displaced in the vertical direction. Therefore, even by rotating the adjusting rod 17g, before Kia Utakoramu 18a and the displacement side bracket 13a is not displaced in the vertical direction, when moving from the unlocked state to the locked state, be discomfort to the driver Absent.

Other structures, operations, and effects are the same as those of the first example of the reference example and the second example of the embodiment described above.

[ Sixth example of reference example ]
A sixth example of the reference example of the present invention will be described with reference to FIG. The adjusting rod 17i constituting the steering wheel position adjusting device of the present reference example has a pair of non-circular portions 58f at two axial positions.

More specifically, the two positions spaced an axial direction end portion close of the adjusting rod 17i, correspond to a gap between the adjustment part, the non-circular portion of a pair of cross-sectional shape is an elliptical shape as shown in FIG. 13 58f Is provided. In the case of the present reference example, the two non-circular portions 58f are connected to the pair of tilt adjusting slots 15a, 15a formed in the two support plate portions 22a, 22a constituting the support bracket 14a (see FIG. 1). It is located inside. In the case of this reference example, the two non-circular portions 58f are provided inside the telescopic adjustment slots 16a, 16a of the sandwiched plate portions 21a, 21a constituting the displacement-side bracket 13a (see FIG. 1). Not placed. That is, in the case of the present reference example, the cross-sectional shape of a portion of the adjusting rod 17i, which is disposed inside the long holes 16a, 16a for adjusting the telescopic shape, is circular. The non-circular portions 58f may be arranged inside the telescopic adjustment slots 16a, 16a.
Further, in the case of the present reference example, the two non-circular portions 58f are also arranged inside the upper and lower holes 45 on the friction plate side of the first friction plate 43 (see FIG. 1).

Further, in the case of the present reference example, in a state where the position of the steering wheel 1 (see FIG. 14) shown in FIG. tilt adjusting long hole 15a, (a vertical direction in FIG. 13, position adjusting direction) 15a and the laying direction of the friction plates side vertical slots 45, 45 with respect to the steering wheel from the unlocked state The direction inclined 45 ° in the rotational direction (clockwise direction in FIG. 9) of the drive side cam 26a constituting the cam device 28a (see FIG. 1) when shifting to the state where the position 1 can be held (locked state). The adjustment rod 17i is arranged so as to coincide with the above.

In the case of the present reference example, in the locked state shown in FIG. 13B, the major axis directions of the two non-circular portions 58f correspond to the tilt adjusting slots 15a, 15a and the friction plate side upper and lower slots 45. , 45 (to regulate the relative displacement of the driving side cam 26a with respect to the driven side cam 27a) so as to coincide with the direction (front-back direction) perpendicular to the arrangement direction of the driving side cam 27a. The adjusting rod 17i is arranged. That is, when shifting from the unlocked state to the locked state, the drive side cam 26a and the adjustment rod 17i are centered on their own central axes with the swinging (rotation) of the adjustment lever 23a (see FIG. 1). Rotate 45 °. Then, the convex portion forming the driving side cam surface of the driving side cam 26a rides on the convex portion forming the driven side cam surface of the driven side cam 27a (becomes a state facing the convex portion), The axial dimension of the cam device 28a increases. Further, with the rotation of the adjusting rod 17i, the two non-circular portions 58f are positioned inside the tilt adjusting slots 15a, 15a and the friction plate side upper and lower slots 45, 45 in FIG. From the state shown in FIG. 13 to the state shown in FIG. 13B (rotate clockwise in FIG. 13 by 45 °). FIG. 13 shows the positional relationship of the non-circular portions 58f with respect to the tilt adjusting slots 15a and the friction plate side upper and lower slots 45 in the unlocked state and the locked state. The state is not limited to the state, and for example, the long-diameter direction of both non-circular portions 58f can be provided in a state rotated by about 45 ° counterclockwise from the state shown in FIG.

In the unlocked state, the front edge and the rear edge of the outer peripheral surfaces of the two non-circular portions 58f, the tilt adjusting slots 15a, 15a, and the friction plate side upper and lower slots 45, 45 are formed. Between the front surface and the rear surface, there is a pair of front and rear gaps 73a and 73b whose front and rear dimensions are _L73a and _L73b , respectively.
On the other hand, in the locked state, the front and rear edges (both longitudinal edges) of the outer peripheral surfaces of the two non-circular portions 58f, the both tilt adjusting slots 15a, 15a, and the vertical length of each of the friction plates. Between the front and rear surfaces of the holes 45, 45, there are a pair of front-rear gaps 73c, 73d whose front-rear dimensions are _L73c , _L73d , respectively.
Then, the in the locked state both longitudinal direction gap 73c, the sum of the dimensions of _{73d (L} 73c ₊ L 73d), said in the unlocked state both longitudinal direction gap 73a, the sum of the dimensions of _{73b (L} 73a ₊ L 73b ) (L _73c + L _73d <L _73a + L _73b ).
In the case of the present embodiment, even in a locked state, _(it is set to _{L 73c> 0, L 73d>} 0) where such longitudinal direction gap 73c described above, and the presence of 73d. However, a configuration in which the front-rear gaps 73c and 73d are zero may be adopted. That is, in the locked state, both longitudinal edges of the outer peripheral surfaces of both the non-circular portions 58f {right and left edges of FIG. 13B}, the both tilt adjusting slots 15a, 15a and the respective frictions. It is also possible to adopt a configuration in which the front and rear surfaces of the plate-side upper and lower slots 45 are in contact with each other. Further, in the case of the present reference example, the sizes of the front-rear direction gaps 73a and 73b are made equal. However, the sizes of the front-rear gaps 73a and 73b may be different from each other.

According to the position adjusting device of a steering wheel of the present embodiment having the above-described configuration, it is possible to smoothly carry out the vertical adjustment of the position of in the steering wheel in the unlocked state and, in the steering locked state The support rigidity in the front-rear direction of the wheel can be improved.
That is, in the case of the present reference example, in the locked state, both longitudinal edges of the outer peripheral surfaces of the two non-circular portions 58f, the two tilt adjusting slots 15a, 15a, and the friction plate side upper and lower slots 45. , 45, the sum of the front and rear gaps 73c, 73d ( _L73c + _L73d ) existing between the front and rear faces is equal to the front and rear end edges of the outer peripheral surfaces of both non-circular portions 58f in the unlocked state. From the sum (L _73a + L _73b ) of the front-rear gaps 73a, 73b between the front and rear surfaces of the tilt adjusting slots 15a, 15a and the upper and lower slots 45, 45. (L _73c + L _73d <L _73a + L _73b ). For this reason, in the unlocked state, based on the presence of the gaps 73a, 73b in the front-rear direction, the adjusting rod 17i is connected to the tilt adjusting slots 15a, 15a and the friction plate side vertical slots 45. , 45 can be displaced smoothly in the vertical direction. On the other hand, in the locked state, the longitudinal gaps 73c and 73d are smaller than the longitudinal gaps 73a and 73b, so that the adjusting rod 17i is connected to the tilt adjusting slots 15a and 15a and the tilt adjusting slots 15a and 15a. The distance that can be displaced in the front-rear direction inside the upper and lower slots 45 on the friction plate side can be reduced. As a result, the sense of rigidity of support of the steering wheel 1 in the front-rear direction is improved, and the sense of discomfort felt by the driver can be reduced (or reduced to zero).

The structure of such present embodiment described above, the two non-circular portion 58f, the two tilt adjusting long holes 15a, 15a and the arrangement of the arranged inside the friction plates side vertical slots 45, 45 Has adopted. However, a configuration in which the two non-circular portions 58f are arranged only inside one of the tilt adjusting slots 15a, 15a and the friction plate side upper and lower slots 45, 45 is provided. Even when employed, the above-described functions and effects can be obtained. When the non-circular portion is disposed only inside the tilt adjusting slot, the non-circular portion is provided only inside one of the tilt adjusting slots 15a, 15a. A configuration in which 58f is arranged can be adopted.

Further, when implementing the present embodiment, among the adjustment rod 17i, the two telescopic adjustment long holes 16a, 16a or the second friction plates 44, 44 friction plate side longitudinal slot (see FIG. 1) The portions arranged inside the 47, 47 may be non-circular portions (not shown) having an elliptical shape such as the two non-circular portions 58f rotated by 90 ° in the circumferential direction. In the case where such a configuration is adopted, the non-circular portion is placed inside the long holes 16a, 16a for adjusting both telescopic lenses or the front and rear long holes 47, 47 on the friction plate side, as in the first example of the reference example described above. It is arranged to be in the same state as in the case of. By adopting such a configuration, similarly to the first example of the reference example , the support rigidity in the vertical direction of the steering wheel 1 is improved, and the uncomfortable feeling felt by the driver is reduced (or reduced to zero). Can do things. That is, a structure in which the non-circular portion is arranged inside the two telescopic adjustment slots 16a, 16a or the respective friction plate side front and rear slots 47, 47, and the two tilt adjustment slots 15a, 15a or each By simultaneously adopting the structure in which the two non-circular portions 58f are arranged inside the friction plate side upper and lower slots 45, 45, it is possible to improve the sense of support rigidity of the steering wheel 1 in the vertical direction and the front-back direction. it can.
Although not shown, the structure of each example of the above-described embodiment and each example of the reference example can be adopted as the non-circular portion 58f.
Other structures, operations, and effects are the same as those of the first example of the above-described reference example .

When carrying out the present invention, the structure of the gap adjusting unit, in a state capable of holding the position of the scan tearing wheel, the displacement amount in the direction orthogonal to the position adjustment direction, which can adjust the position of the steering wheel state As long as the displacement amount in the direction perpendicular to the position adjustment direction can be made smaller , various structures can be adopted irrespective of the structure of each example of the above-described embodiment . In other words, as the structure of the gap adjusting portion, the gap adjusting portion and the adjusting slot (telescopic adjusting slot, tilt adjusting slot) or the third slot (friction plate side front and rear slots, friction Various structures can be employed in which the gap between the inner surface of the plate-side upper and lower slots and the direction perpendicular to the position adjustment direction can be smaller in the locked state than in the unlocked state.
In addition, the structures of the respective examples of the above-described embodiments and the respective examples of the reference examples can be implemented in an appropriate combination. That is, if the structure of each of the embodiments or the first to fifth examples of the reference example is combined with the structure of the sixth example of the reference example, the support rigidity in the vertical direction and the front-rear direction of the steering wheel can be improved. The sensation can be improved.
Furthermore, for example, the either one of the non-circular portion 58 of the two non-circular portion 58 of the first example of the reference example described above, and a non-circular portion 58f of the eighth example of the reference example described above the structure Can also be adopted. With such a configuration, the rigidity of the steering wheel in the up-down direction and the front-rear direction in the locked state can be improved by the non-circular portions provided at the two positions of the adjusting rod.

Reference Signs List 1 steering wheel 2 steering gear unit 3 input shaft 4 tie rod 5 steering shaft 6, 6a steering column 7 universal joint 8 intermediate shaft 9 universal joint 10, 10a housing 11 vehicle body 12, 12a tilt shaft 13, 13a displacement side bracket 14, 14a support Brackets 15, 15a Long holes for tilt adjustment 16, 16a Long holes for telescopic adjustment 17, 17a, 17b, 17c, 17d, 17e, 17f, 17g, 17h, 17i Adjustment rods 18, 18a Outer columns 19, 19a Inner columns 20, 20a slit 21, 21a clamped plate portion 22, 22a support plate portion 23, 23a adjustment lever 24, 24a nut 25, 25a thrust bearing 26, 26a drive side cam 27, 27a driven side cam 28, 8a Cam device 29a, 29b Vertical gap 30 Electric motor 31 Outer shaft 32 Inner shaft 33a, 33b, 33c Ball bearing 34 Swing bracket 35 Warm 36 Worm wheel 37 Worm type reducer 38 Stepped surface 39 Elastic sleeve 40 Mounting plate 41 Detachable capsule 42 Notch groove 43 First friction plate 44 Second friction plate 45 Upper and lower slots on friction plate side 46 First set screw 47 Front and rear slots on friction plate side 48 Second set screw 49 Head 50 Press plate Reference Signs List 51 male screw part 52 sleeve 53 center hole 54 pressing protrusion 55 center hole 56 drive side engagement protrusion 57 engagement hole 58, 58a, 58b, 58c, 58d, 58e, 58f non-circular portion 59 cylindrical surface portion 60a, 60b vertical direction Clearance 61a, 61b Vertical clearance 62 Crank part 63 Eccentric shaft Part 64 Inclined continuous part 65 Shaft part 66 Vertical gap 67 Non-circular resin part 68a, 68b Vertical gap 69, 69a, 69b, 69c Eccentric convex part 70a, 70b Vertical gap 71 Vertical gap 72 Vertical gap 73a, 73b , 73c, 73d Front-back gap

Claims (7)

A steering column that is provided around a steering shaft that fixes a steering wheel to an end and rotatably supports the steering shaft;
A displacement side bracket fixed to a part of the steering column;
A first through-hole provided in the displacement-side bracket so as to penetrate the displacement-side bracket in the width direction;
A fixed-side bracket fixed to the vehicle body, having a pair of support plate portions provided so as to sandwich the displacement-side bracket from both sides in the width direction;
A pair of second through holes provided at portions of the support plate portions that are aligned with each other;
An adjusting rod provided in a state where the first through hole and the both second through holes are inserted in the width direction;
A pair of pressing portions provided at portions protruding from the outer surfaces of the support plate portions at both ends of the adjusting rod;
Between the outer surface of the displacement-side bracket and the inner surface of at least one of the two support plate portions, or the outer surface of at least one of the two support plate portions. A plate-shaped friction member provided between one of the pressing portions and one of the pressing portions,
A third slot for inserting the adjusting rod, the friction member being provided in a state of penetrating the friction member in the width direction;
An expansion / contraction mechanism that expands / contracts the interval between the two pressing portions,
At least one of the first through-hole and the two second through-holes, an adjustment long hole that is long in a position adjustment direction that is a direction in which the position of the steering wheel should be adjustable,
The third long hole is formed in a state long in the position adjustment direction,
When expanding and contracting the expansion and contraction mechanism, a position adjusting device of a steering wheel in which the adjustment rod rotates,
The adjusting rod has a gap adjusting unit,
The gap adjusting portion is disposed inside at least one of the adjusting long hole and the third long hole,
A gap between the outer peripheral surface of the gap adjusting portion and the inner surface of the one long hole in a direction orthogonal to the position adjusting direction in a state where the position of the steering wheel can be held can adjust the position of the steering wheel. The gap between the outer peripheral surface of the gap adjusting portion and the inner surface of the long slot for adjustment, in the direction orthogonal to the position adjusting direction, and and the inner surface of the outer peripheral surface third elongated hole has smaller Kuna' than the gap with respect to the direction perpendicular to the position adjustment direction,
The gap adjusting portion is configured by a non-circular portion having a non-circular cross-sectional shape, and the non-circular portion is configured by an axial intermediate portion of the adjusting rod and a resin member externally fitted and fixed to the portion. Have been
Steering wheel position adjustment device. In the cross-sectional shape of the non-circular portion in a state in which the position of the steering wheel can be held and a virtual plane orthogonal to the axial direction of the adjustment rod, the dimension in the position adjustment direction is orthogonal to the position adjustment direction. smaller than dimension, the position adjustment device for a steering wheel according to claim 1. The steering wheel position adjusting device according to any one of claims 1 to 2 , wherein a cross-sectional shape of the non-circular portion with respect to a virtual plane orthogonal to the axial direction of the adjusting rod is elliptical. A convex portion protruding radially outward is formed at an intermediate portion in the axial direction of the adjusting rod, and a portion of the adjusting rod that aligns with the convex portion in the axial direction is the gap adjusting portion. Item 3. The steering wheel position adjusting device according to any one of Items 1 and 2 . A steering column that is provided around a steering shaft that fixes a steering wheel to an end and rotatably supports the steering shaft;
A displacement side bracket fixed to a part of the steering column;
A first through-hole provided in the displacement-side bracket so as to penetrate the displacement-side bracket in the width direction;
A fixed-side bracket fixed to the vehicle body, having a pair of support plate portions provided so as to sandwich the displacement-side bracket from both sides in the width direction;
A pair of second through holes provided at portions of the support plate portions that are aligned with each other;
An adjusting rod provided in a state where the first through hole and the both second through holes are inserted in the width direction;
A pair of pressing portions provided at portions protruding from the outer surfaces of the support plate portions at both ends of the adjusting rod;
Between the outer surface of the displacement-side bracket and the inner surface of at least one of the two support plate portions, or the outer surface of at least one of the two support plate portions. A plate-shaped friction member provided between one of the pressing portions and one of the pressing portions,
A third slot for inserting the adjusting rod, the friction member being provided in a state of penetrating the friction member in the width direction;
An expansion / contraction mechanism that expands / contracts the interval between the two pressing portions,
At least one of the first through-hole and the two second through-holes, an adjustment long hole that is long in a position adjustment direction that is a direction in which the position of the steering wheel should be adjustable,
The third long hole is formed in a state long in the position adjustment direction,
When expanding and contracting the expansion and contraction mechanism, a position adjusting device of a steering wheel in which the adjustment rod rotates,
The adjusting rod has a gap adjusting unit,
The gap adjusting portion is disposed inside at least one of the adjusting long hole and the third long hole,
A gap between the outer peripheral surface of the gap adjusting portion and the inner surface of the one long hole in a direction orthogonal to the position adjusting direction in a state where the position of the steering wheel can be held can adjust the position of the steering wheel. The gap between the outer peripheral surface of the gap adjusting portion and the inner surface of the long slot for adjustment, in the direction orthogonal to the position adjusting direction, and and the inner surface of the outer peripheral surface third elongated hole has smaller Kuna' than the gap with respect to the direction perpendicular to the position adjustment direction,
The gap adjusting portion is configured by a crank portion including an eccentric shaft portion eccentric with respect to a rotation center of the adjusting rod .
Steering wheel position adjustment device. It has a telescopic function that can adjust the front and rear position of the steering wheel,
The first through hole is a long hole long in the front-back direction,
The position adjusting device for a steering wheel according to any one of claims 1 to 5 , wherein the adjusting long hole is the first through hole. It has a tilt function that can adjust the vertical position of the steering wheel,
The two second through holes are vertically long holes,
The position adjusting device for a steering wheel according to any one of claims 1 to 6 , wherein the adjusting long hole is the second through hole.

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