JP2005186661A - Position adjustable steering device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make tilt adjustment as desired by the driver through a fine adjustment of the swinging angle (direction) etc. of a steering wheel upon performing the main adjustment of the vertical position (level) of the steering wheel. <P>SOLUTION: In addition to a telescopic tilt adjusting mechanism where a tilt pivot (the rotational center of a universal joint 7) is installed in the front of the vehicle, a fine adjusting mechanism for tilt adjustment is provided where a tilt pivot (the rotational center of a universal joint 4) is installed in the rear of the vehicle. Upon performing the main adjustment of the vertical position (level) of the steering wheel (not illustrated), fine adjustment can be made for the swinging angle (direction) of the steering wheel (not illustrated), and if necessary, its vertical position (level). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is a vehicle position in which after the main adjustment of the vertical position (height) of the steering wheel, the swing angle (orientation) of the steering wheel can be finely adjusted to adjust the tilt as desired by the driver. The present invention relates to an adjustable steering device.

  Since the vehicle steering column device is used (steered) by an unspecified driver, it is desirable that the position of the steering wheel can be adjusted in accordance with the individual physique and driving posture. In order to meet such demands, many adopt a tilt type mechanism or a telescopic type mechanism.

  The tilt mechanism is a mechanism for adjusting the position of the steering wheel in a substantially vertical direction, a tilt pivot for swingably supporting the steering column, and a tilt for clamping the steering column at a desired position (swing angle). -It consists of clamping means.

  As disclosed in Patent Document 1, when the tilt pivot is provided relatively on the front side of the vehicle, a certain amount of movement of the vertical position (height) of the steering wheel is secured when adjusting the tilt position. However, on the other hand, the swinging angle (orientation) of the steering wheel hardly changes and may be substantially the same.

On the other hand, when the tilt pivot is provided relatively on the rear side of the vehicle, the swing angle (orientation) of the steering wheel can be secured sufficiently, but on the other hand, the vertical position (height) of the steering wheel can be secured. The amount of movement does not change much and may be insufficient.
JP 2000-127987 A

  Therefore, in either case where the tilt pivot is provided on the front side of the vehicle or on the rear side of the vehicle, the vertical position (height) of the steering wheel and the steering wheel In some cases, both the swing angle (orientation) cannot be adjusted sufficiently as desired by the driver.

  The present invention has been made in view of the circumstances as described above, and after the main adjustment of the vertical position (height) of the steering wheel, the swing angle (direction) of the steering wheel is finely adjusted, It is an object of the present invention to provide a vehicle position-adjustable steering device that can be adjusted in tilt as desired by a driver.

In order to achieve the above object, in the vehicle position-adjustable steering device according to claim 1 of the present invention, the upper steering shaft and the lower steering shaft are swingably coupled,
A lower column for rotatably holding the lower steering shaft; and an upper column for rotatably holding the upper steering shaft;
In a vehicle position-adjustable steering device capable of adjusting the position of a steering wheel,
A connecting plate fixed to one of the lower column and the upper column and extending to the other column;
A clamp mechanism for clamping the connecting plate in the column on the other side.

In the vehicle position-adjustable steering apparatus according to claim 2 of the present invention, the connecting plate is fixed to the upper column and extends to the other column.
The clamp mechanism is located in the lower column and clamps the connecting plate.

  The vehicle position-adjustable steering apparatus according to claim 3 of the present invention is characterized in that a tilt adjusting mechanism is further provided on the lower side of the clamp mechanism.

In the vehicle position-adjustable steering apparatus according to claim 4 of the present invention, the clamp mechanism includes:
A column-side bracket fixed to the other column facing the connecting plate,
A tilting bolt inserted through a tilt hole formed in a substantially arc shape in the connecting plate around a tilt pivot of the steering shafts and a round hole formed in the column side bracket; And a pressing mechanism that presses and connects the connecting plate and the column side bracket.

  The vehicle position-adjustable steering apparatus according to claim 5 of the present invention is characterized in that the pressing mechanism has a plurality of friction plates that can be pressed against each other.

  According to a sixth aspect of the present invention, there is provided the vehicle position-adjustable steering apparatus, wherein the pressure contact mechanism has a movable gear that can mesh with a fixed gear fixed to the connecting plate.

  As described above, according to the present invention, in addition to the main adjustment tilt adjustment mechanism in which the tilt pivot is provided on the vehicle front side, the fine adjustment tilt adjustment mechanism in which the tilt pivot is provided on the vehicle rear side is provided. Therefore, after the main adjustment of the vertical position (height) of the steering wheel, the swing angle (orientation) of the steering wheel, or the vertical position (height) as necessary, is finely adjusted. Tilt adjustment can be performed on the street.

  A vehicle position-adjustable steering device according to an embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1A is a side view including a partially cutaway cross section on the vehicle front side when the vehicle position-adjustable steering apparatus according to the embodiment of the present invention is divided into two, and FIG. It is a side view containing the partial notch cross section of the back side.

  FIG. 2 is a side view including a partially cutaway cross section of the vehicle rear portion when the vehicle position-adjustable steering apparatus according to the embodiment of the present invention is divided into three parts.

  FIG. 3 is a side view including a partially cutaway cross section of the vehicle middle portion when the vehicle position adjustment type steering device according to the embodiment of the present invention is divided into three parts.

  FIG. 4 is a side view including a partially cutaway cross section of the front portion of the vehicle when the vehicle position-adjustable steering device according to the embodiment of the present invention is divided into three parts.

  FIG. 5 is a view taken in the direction of arrow V in FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. FIG. 8 is a sectional view taken along line VIII-VIII in FIG.

  In this embodiment, in addition to the main adjustment tilt / telescopic adjustment mechanism in which the tilt pivot is provided on the vehicle front side, a fine adjustment tilt adjustment mechanism in which the tilt pivot is provided on the vehicle rear side is provided.

  As shown in FIGS. 1 to 4, the vehicle position-adjustable steering apparatus according to the present embodiment has a relatively long steering column 1 (lower column) and a substantially ring shape provided on the vehicle rear side. Housing 2 (upper column).

  As shown in FIG. 2, the steering shaft has a first shaft 3 on which a steering wheel (not shown) is mounted on the vehicle rear side, and a second shaft 5 connected to the first shaft 3 via a universal joint 4. It is equipped with. The first shaft 3 is rotatably supported by a bearing 2 a provided in the housing 2. The rotation center of the universal joint 4 constitutes a tilt pivot of a fine adjustment tilt adjustment mechanism, which will be described in detail later. Moreover, the 2nd shaft 5 consists of the solid part 5a connected with the universal joint 4, and the cylindrical part 5b fixed by welding etc. to the vehicle front side of this solid part 5a. The solid portion 5a is rotatably supported by a bearing 1a provided at the vehicle rear end portion of the steering column 1.

  As shown in FIG. 3, a cylindrical third shaft 6 that is serrated (or spline fitted) to the cylindrical portion 5b is provided on the front side of the cylindrical portion 5b of the second shaft 5. is there. A cylindrical fourth shaft 8 is connected to the third shaft 6 via a universal joint 7. The rotation center of the universal joint 7 constitutes a tilt pivot of a main adjustment tilt adjustment mechanism, which will be described in detail later. As shown in FIG. 5, the universal joint 7 is an elastic shaft joint, and an inner ring Da and an outer ring are provided between the vehicle rear end of the fourth shaft 8 and the vehicle front side yoke of the universal joint 7. A buffer member D filled with rubber Dc (elastic body) is provided between Db. Thus, when the steering torque is below a predetermined value, the buffer member D can buffer and reduce unpleasant sounds and vibrations transmitted from the engine room. An engagement hole Dd is formed in the vehicle front side yoke of the universal joint 7, and a stopper pin De that can be engaged and disengaged from the engagement hole Dd is provided at the vehicle rear end of the fourth shaft 8. As a result, when the steering torque is below a predetermined value, the stopper pin De is not engaged with the engagement hole Dd. When the steering torque is increased to a predetermined value or higher, the stopper pin De is engaged with the engagement hole Dd to steer. Torque can be transmitted.

  A solid fifth shaft 9 that is spline fitted (or serrated fitted) to the tubular fourth shaft 8 is slidably connected to the front side of the fourth shaft 8 in the vehicle. The fourth shaft 8 can be telescopically slid by spline fitting with the fifth shaft 9 or the like. A pinion shaft of a steering gear device (not shown) is connected to the vehicle front side of the fifth shaft 9 via a universal joint 10 so that wheels can be steered via a steering rack (not shown) or the like. Yes.

  In the main adjustment tilt / telescopic adjustment mechanism, as shown in FIGS. 2 and 6, an upper vehicle body side bracket 11 is provided on the vehicle body side, and a column side bracket (distance bracket) 12 is provided on the steering column 1 side. It is provided.

  The upper vehicle body side bracket 11 includes a pair of vehicle body mounting portions 11a and 11a extending substantially horizontally, and a pair of opposed flat plate portions 11b formed integrally with the vehicle body mounting portions 11a and 11a and extending vertically. 11b and a bottom plate portion 11c connecting the lower portions of the opposed flat plate portions 11b and 11b. The opposing flat plate portions 11b and 11b are formed with elongated holes 11d and 11d for tilting through which tightening bolts 13 to be described later are inserted. The long slots for tilt 11d, 11d are formed in a substantially arc shape centered on the rotation center (tilt pivot) of the universal joint 7, and extend in a substantially vertical direction. The pair of vehicle body mounting portions 11a and 11a are provided with coating plates 11e and 11e for detachment at the time of a secondary collision, respectively. Thereby, at the time of a secondary collision, the upper vehicle body side bracket 11 can be detached from the vehicle body together with the steering column 1 and the like. More specifically, the pair of vehicle body mounting portions 11a, 11a are formed with a pair of notches that are open toward the rear of the vehicle, respectively, and the pair of coating plates 11e, 11e are respectively A pair of long holes are formed. Bolts that pass through these notches and elongated holes are attached to the vehicle body and fixed.

  The column side bracket 12 includes a pair of opposed flat plate portions 12a and 12a whose upper portions bent substantially obliquely are fixed to the steering column 1 by welding or the like, and a bottom plate portion 12b connecting lower portions of the opposed flat plate portions 12a and 12a, And has a substantially cross-sectional shape. The opposed flat plate portions 12b and 12b are formed with telescopic elongated holes 12c and 12c extending in the axial direction, respectively, into which tightening bolts 13 to be described later are inserted.

  The tightening bolt 13 has a substantially square engaging portion 13b on the head 13a side. The substantially rectangular engaging portion 13b is engaged with the tilting long hole 11d of the opposing flat plate portion 11b, thereby maintaining the tightening bolt 13 in a non-rotating state at all times. However, the tightening bolt 13 can move substantially vertically along the long slot for tilt 11d. The engaging portion 13b is not limited to a quadrangle, and may be any non-circular cross section that engages with the long slot 11d for tilting and maintains non-rotation. A male screw portion is formed at the tip portion 13 c of the tightening bolt 13.

  An adjustment nut 14 is inserted through the front end portion 13c of the tightening bolt 13, and the adjustment nut 14 has a cylindrical portion 14a in which a female screw portion is formed on the inner peripheral surface. The female screw portion on the inner peripheral surface of the cylindrical portion 14a is screwed into the male screw portion of the tip portion 13c of the tightening bolt 13.

  A mounting portion 15 a of the operation lever 15 is fitted to the outer peripheral surface of the cylindrical portion 14 a of the adjustment nut 14. The external thread portion formed on the outer peripheral surface of the cylindrical portion 14 a is screwed with the internal thread portion of the fixing nut 16, whereby the mounting portion 15 a of the operation lever 15 rotates relative to the adjustment nut 14. It is fixed impossible.

  As shown in FIGS. 3, 5, and 7, a lower vehicle body side bracket 21 is provided on the front side of the vehicle. The lower vehicle body side bracket 21 includes a pair of vehicle body mounting portions 21a and 21a extending substantially horizontally, and a pair of opposed flat plate portions formed integrally with the vehicle body mounting portions 21a and 21a so as to extend substantially vertically. 21b, 21b and a bottom plate portion 21c connecting the lower portions of the opposed flat plate portions 21b, 21b. Round holes 21d and 21d are formed in the opposing flat plate portions 21b and 21b, respectively. More specifically, a pair of long holes are formed in the pair of vehicle body attachment portions 21a and 21a, respectively. Bolts that pass through these long holes are fixed to the vehicle body.

  A column side bracket 22 is attached to the front end portion of the steering column 1 in the vehicle. The column side bracket 22 has a top plate portion 22a (FIGS. 3 and 5) fixed to the upper portion of the front end portion of the vehicle of the steering column 1 by welding or the like. From the top plate portion 22a, upper flange portions 22b and 22b extend forward in the vehicle direction on both sides thereof. The column side bracket 22 has a bottom plate portion 22c (FIG. 3) fixed to the lower portion of the front end portion of the steering column 1 by welding or the like. From the bottom plate portion 22c, lower flange portions 22d and 22d extend forward in the vehicle direction on both sides thereof. The column side bracket 22 has a pair of opposed flat plate portions 22e and 22e that are integrally formed with the upper flange portions 22b and 22b and the lower flange portions 22d and 22d and extend substantially in the vertical direction. A pair of telescopic long holes 22f and 22f extending in the axial direction are formed in the portions 22e and 22e.

  Furthermore, a wave washer 23 having a head, a resin washer 24, and a resin plate 25 are provided in the circular holes 21d and 21d of the opposed flat plate portions 21b and 21b and the telescopic long holes 22f and 22f of the opposed flat plate portions 22e and 22e. Pivot pins 26, 26 are inserted through the pin. The wave washer 23 is for preventing backlash, and the resin washer 24 and the resin plate 25 are for securing a sliding surface during telescopic. The tip portions 26a, 26a of the pivot pins 26, 26 are caulked and fixed to the opposed flat plate portions 21b, 21b.

  Therefore, at the time of main adjustment tilt / telescopic adjustment, as shown in FIG. 6, when the operation lever 15 is swung in one direction, the adjustment nut 14 rotates in one direction with respect to the always-on non-rotating tightening bolt 13. As a result, the head 13a of the tightening bolt 13 and the adjustment nut 14 are separated from each other in the axial direction. As a result, the pressure contact between the opposed flat plate portions 11b, 11b of the upper vehicle body side bracket 11 and the opposed flat plate portions 12a, 12a of the column side bracket 12 is released, and the steering column 1 and the like can be tilted and telescopically adjusted.

  On the other hand, at the time of main adjustment tilt / telescopic tightening, as shown in FIG. 6, if the operating lever 15 is swung in the other direction, the adjusting nut 14 is moved in the other direction with respect to the normal / non-rotating tightening bolt 13. By rotating, the head 13a of the tightening bolt 13 and the adjustment nut 14 are close to each other in the axial direction. As a result, the opposed flat plate portions 11b, 11b of the upper vehicle body side bracket 11 and the opposed flat plate portions 12a, 12a of the column side bracket 12 are pressed against each other, and the steering column 1 and the like are tilted and telescopically tightened.

  As shown in FIGS. 2 and 8, in the fine adjustment tilt adjustment mechanism, a pair of connecting plates 31 and 31 (stays) are fixed to both sides of the housing 2 by welding. The connecting plates 31, 31 extend toward the front of the vehicle, and tilt long holes 31 a, 31 a formed in a substantially arc shape centering on the tilt pivot of the universal joint 4 are substantially vertically moved at the front end of the connecting plates 31, 31. It extends in the direction.

  The column side bracket 32 includes a pair of opposed flat plate portions 32a and 32a whose upper portions bent substantially obliquely are fixed to the steering column 1 by welding or the like, and a bottom plate portion 32b connecting lower portions of the opposed flat plate portions 32a and 32a, And has a substantially cross-sectional shape. The opposed flat plate portions 32a and 32a are formed with round holes 32c and 32c, respectively, through which fastening bolts 33 to be described later are inserted, extending in the axial direction.

  The tightening bolt 33 has a substantially square engaging portion 33b on the head 33a side. The substantially rectangular engaging portion 33b engages with the long slot 31a for tilting of the connecting plate 31, thereby maintaining the tightening bolt 33 constantly and non-rotating. However, the tightening bolt 33 can move substantially vertically along the long slot 31a for tilting. The engaging portion 33b is not limited to a quadrangle, and may be any non-circular cross section that engages with the long slot 31a for tilting and maintains non-rotation. A male screw portion is formed at the distal end portion 33 c of the tightening bolt 33.

  An adjustment nut 34 is inserted on the distal end portion 33c side of the tightening bolt, and this adjustment nut 34 has a cylindrical portion 34a in which a female screw portion is formed on the inner peripheral surface. The female screw portion on the inner peripheral surface of the cylindrical portion 34 a is screwed into the male screw portion of the tip portion 33 c of the tightening bolt 33.

  An attachment portion 35 a of the operation lever 35 is fitted to the outer peripheral surface of the cylindrical portion 34 a of the adjustment nut 34. The external thread portion formed on the outer peripheral surface of the cylindrical portion 34 a is screwed with the internal thread portion of the fixing nut 36, so that the mounting portion 35 a of the operation lever 35 rotates relative to the adjustment nut 34. It is fixed impossible.

  Therefore, at the time of fine adjustment tilt adjustment, as shown in FIG. 8, when the operation lever 35 is swung in one direction, the adjusting nut 34 is rotated in one direction with respect to the always-on non-rotating tightening bolt 33. Thus, the head 33a of the tightening bolt 33 and the adjustment nut 34 are separated from each other in the axial direction. As a result, the pressure contact between the connecting plates 31 and 31 and the opposing flat plate portions 32a and 32a of the column side bracket 32 is released, and the first shaft 3 supported by the housing 2 and the connecting plates 31 and 31 can be tilt-adjusted. .

  On the other hand, at the time of fine adjustment tilt / telescopic tightening, as shown in FIG. 8, if the operating lever 35 is swung in the other direction, the adjustment nut 34 is moved in the other direction with respect to the normal / non-rotating tightening bolt 33. The head 33a of the tightening bolt 33 and the adjustment nut 34 are close to each other in the axial direction by rotating. As a result, the connecting plates 31 and 31 and the opposed flat plate portions 32a and 32a of the column side bracket 32 are pressed against each other, and the housing 2 and the connecting plates 31 and 31 are tilt-tightened.

  As described above, according to the present embodiment, in addition to the main adjustment tilt / telescopic adjustment mechanism (FIG. 6) in which the tilt pivot (rotation center of the universal joint 7) is provided on the front side of the vehicle, the tilt pivot (the universal joint 4). Since the fine adjustment tilt adjustment mechanism (FIG. 8) is provided on the rear side of the vehicle, the steering wheel (not shown) is mainly adjusted in the vertical position (height), and then the steering wheel The tilt angle can be adjusted as desired by the driver by finely adjusting the swing angle (direction) (not shown) or the vertical position (height) as necessary.

  FIG. 9 is a cross-sectional view of a main part of the vehicle position-adjustable steering apparatus according to the first modification of the embodiment of the present invention (a diagram corresponding to a cross section taken along line VIII-VIII in FIG. 2).

  In this modification, a multi-plate friction engagement mechanism is used. That is, the friction plates 41 are fixed to the outer surfaces of the connecting plates 31 and 31 by a pair of screws 40 and 40, respectively. A friction plate 42 is interposed between the friction plate 41 and the connecting plate 31, and the front end portion and the rear end portion of the friction plate 42 are fixed to the opposed flat plate portions 32 a and 32 a of the column side bracket 32. Yes. The friction plate 41 is formed with a tilt long hole 41a corresponding to the tilt long hole 31a, and the friction plate 42 is formed with a round hole 42a corresponding to the round hole 32c.

  Therefore, at the time of fine adjustment tilt adjustment, as shown in FIG. 9, if the operation lever 35 is swung in one direction, the adjustment nut 34 is rotated in one direction with respect to the always-on non-rotating tightening bolt 33. Thus, the head 33a of the tightening bolt 33 and the adjustment nut 34 are separated from each other in the axial direction. As a result, the pressure contact between the adjustment nut 34, the friction plates 41, 42, the coupling plates 31, 31, and the opposed flat plate portions 32 a, 32 a of the column side bracket 32 is released, and the housing 2 and the coupling plates 31, 31 are supported. The tilt of the first shaft 3 can be adjusted.

  On the other hand, at the time of fine adjustment tilt / telescopic tightening, as shown in FIG. 9, if the operating lever 35 is swung in the other direction, the adjustment nut 34 is moved in the other direction with respect to the normal / non-rotating tightening bolt 33. The head 33a of the tightening bolt 33 and the adjustment nut 34 are close to each other in the axial direction by rotating. As a result, the adjustment nut 34, the friction plates 41, 42, the connection plates 31, 31 and the opposed flat plate portions 32a, 32a of the column side bracket 32 are pressed against each other, and the housing 2, the connection plates 31, 31 and the like are tilt-tightened. Attached.

  Thus, in this modification, since the friction plates 41 and 42 are used, the holding force at the time of tilt fastening can be further enhanced.

  FIG. 10 is a cross-sectional view of a main part of a vehicle position-adjustable steering apparatus according to a second modification of the embodiment of the present invention (a diagram corresponding to a cross section taken along line VIII-VIII in FIG. 2).

  In this modification, a gear meshing mechanism is used. That is, a fixed gear 51 having meshing teeth is fixed to the outer surface of the connecting plate 31 by welding or the like. The fixed gear 51 has a long tilt hole 51a corresponding to the long tilt hole 31a. A movable gear 52 having meshing teeth that mesh with meshing teeth of the fixed gear 51 is inserted into the fastening bolt 33 adjacent to the adjustment nut 34 so as to be movable in the axial direction, and a resin spacer 53 is inserted. It is fixed. A compression coil spring 54 is interposed between the resin spacer 53 and the movable gear 52.

  Therefore, at the time of fine adjustment tilt adjustment, as shown in FIG. 10, when the operation lever 35 is swung in one direction, the adjustment nut 34 is rotated in one direction with respect to the always-on non-rotating tightening bolt 33. Thus, the head 33a of the tightening bolt 33 and the adjustment nut 34 are separated from each other in the axial direction.

  Thereby, the movable gear 52 is separated from the fixed gear 53 in the axial direction by the urging force of the compression coil spring 54, the meshing of both meshing teeth of both the gears 51, 52 is released, and the connecting plates 31, 31; The pressure contact between the opposed flat plate portions 32a and 32a of the column side bracket 32 is released, and the tilt of the first shaft 3 supported by the housing 2 and the connecting plates 31 and 31 can be adjusted.

  On the other hand, at the time of fine adjustment tilt / telescopic tightening, as shown in FIG. 10, if the operating lever 35 is swung in the other direction, the adjustment nut 34 is moved in the other direction with respect to the normal / non-rotating tightening bolt 33. The head 33a of the tightening bolt 33 and the adjustment nut 34 are close to each other in the axial direction by rotating.

  As a result, the meshing teeth of the movable gear 52 are pressed against the meshing teeth of the fixed gear and pressed, and the connecting plates 31 and 31 and the opposed flat plate portions 32 a and 32 a of the column side bracket 32 are pressed and connected to the housing 2. The plates 31, 31 and the like are tilted.

  As described above, in this modification, since the gear meshing mechanism including the fixed gear 51 and the movable gear 52 is used, the holding force at the time of tilt tightening can be further increased.

  In addition, this invention is not limited to embodiment mentioned above, A various deformation | transformation is possible. The present invention can also be applied to an electric power steering apparatus and the like such as a tilt type, a telescopic type, a tilt / telescopic type, a tilt type of these electric types, and the like.

(A) is a side view including a partially cutaway cross section on the vehicle front side when the vehicle position-adjustable steering device according to the embodiment of the present invention is divided into two, and (b) is the vehicle rear side. It is a side view containing a partial notch section. It is a side view including the partial notch section of the vehicle rear part at the time of dividing the position adjustment type steering device for vehicles concerning an embodiment of the invention into three parts. It is a side view including the partial notch section of the vehicle middle part at the time of dividing the position adjustment type steering device for vehicles concerning an embodiment of the invention into three parts. 1 is a side view including a partially cutaway cross section of a vehicle front portion when a vehicle position-adjustable steering apparatus according to an embodiment of the present invention is divided into three parts. FIG. 4 is an arrow view of FIG. 3 (a plan view of a vehicle middle portion). It is sectional drawing along the VI-VI line of FIG. It is sectional drawing along the VII-VII line of FIG. It is sectional drawing along the VIII-VIII line of FIG. It is sectional drawing of the principal part of the position adjustment type steering device for vehicles which concerns on the 1st modification of embodiment of this invention (figure corresponding to the cross section along the VIII-VIII line of FIG. 2). It is sectional drawing of the principal part of the vehicle position adjustment type steering apparatus which concerns on the 2nd modification of embodiment of this invention (figure corresponding to the cross section along the VIII-VIII line of FIG. 2).

Explanation of symbols

1 Steering column (lower column)
1a Bearing 2 Housing (upper column)
2a Bearing 3 First shaft 4 Universal joint 5 Second shaft 5a Solid part 5b Tubular part 6 Third shaft 7 Universal joint (elastic shaft joint)
8 Fourth shaft 9 Fifth shaft 10 Universal joint 11 Upper vehicle body side bracket 11a Vehicle body mounting portion 11b Opposing flat plate portion 11c Bottom plate portion 11d Tilt slot 11e Coating plate 12 Column side bracket 12a Opposed flat plate portion 12b Bottom plate portion 12c Telescopic length Hole 13 Clamping bolt 13a Head 13b Engagement part 13c Tip part 14 Adjustment nut 14a Cylindrical part 15 Operation lever 15a Mounting part 16 Fixing nut 21 Lower body side bracket 21a Car body mounting part 21b Opposite flat plate part 21c Bottom plate part 21d Round hole 22 Column side bracket 22a Top plate part 22b Upper flange part 22c Bottom plate part 22d Lower flange part 22e Opposing flat plate part 22f Telescopic long hole 23 Wave washer 24 Resin washer 25 Resin plate 26 Pivot pipe 26a Front end portion 31 Connecting plate 31a Tilt slot 32 Column side bracket 32a Opposing flat plate portion 32b Bottom plate portion 32c Round hole 33 Tightening bolt 33a Head portion 33b Engagement portion 33c Tip portion 34 Adjustment nut 34a Cylindrical portion 35 Operation lever 35a Mounting portion 36 Fixing nut 40 Screw 41 Friction plate 41a Tilt long hole 42 Friction plate 42a Round hole 51 Fixed gear 51a Tilt long hole 52 Movable gear 53 Resin spacer 54 Compression coil spring

Claims (6)

The upper steering shaft and the lower steering shaft are slidably coupled,
A lower column for rotatably holding the lower steering shaft; and an upper column for rotatably holding the upper steering shaft;
In a vehicle position-adjustable steering device capable of adjusting the position of a steering wheel,
A connecting plate fixed to one column of the lower column and the upper column and extending to the other column;
A vehicle position-adjustable steering apparatus, comprising: a clamp mechanism that clamps the connecting plate in the column on the other side. The connecting plate is fixed to the upper column and extends to the other column;
2. The vehicle position-adjustable steering apparatus according to claim 1, wherein the clamp mechanism is provided in the lower column and clamps the connecting plate. 3.   The vehicle position-adjustable steering apparatus according to claim 1, further comprising a tilt adjustment mechanism on a lower side of the clamp mechanism. The clamping mechanism is
A column-side bracket fixed to the other column facing the connecting plate,
A tilting bolt inserted through a tilt hole formed in a substantially arc shape in the connecting plate around a tilt pivot of the steering shafts and a round hole formed in the column side bracket; 4. The vehicle position-adjustable steering apparatus according to claim 1, further comprising: a pressing mechanism that presses and connects the connecting plate and the column side bracket. 5.   The vehicle position-adjustable steering apparatus according to claim 4, wherein the pressing mechanism includes a plurality of friction plates that can be pressed against each other.   5. The vehicle position-adjustable steering apparatus according to claim 4, wherein the pressure contact mechanism includes a movable gear that can mesh with a fixed gear fixed to the connecting plate.

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