JP2019182298A - Steering device - Google Patents

Abstract

To provide a steering device capable of reducing variation of support rigidity due to a position of a fastening member in a long hole when a pair of side plates is fastened.SOLUTION: A side plate 22A includes a tilt long hole 33 extending in a tilt direction Y, a first plate part 71 adjacent to the tilt long hole 33 from a lower side XL of a column axial direction X, and a second plate part 72 adjacent to the tilt long hole 33 from an upper side XU of the column axial direction X, the second plate part 72 having narrower plate width W2 with respect to the column axial direction X than the first plate part 71. A first fastening member 26 includes a boss part 51 that has a square shape viewed from a fastening axial direction J, and an insertion hole 52 provided in the boss part 51 and to which a fastening axis 24 is inserted. A diagonal center 55 of the boss part 51 is offset to a center 56 of the insertion hole 52 so as to be away from an edge part 72a of an upper side XU of the column axial direction X in the second plate part 72 from the center 56 of the insertion hole 52.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a steering device.

  The steering device described in Patent Literature 1 below is fixed to the upper jacket and the lower jacket that are fitted so as to be relatively slidable in the column axis direction of the steering shaft, the first bracket supported by the vehicle body, and the upper jacket. A second bracket. A boss portion of a fastening member for fastening the pair of side plates is inserted through the long slots for tilt provided on the pair of side plates of the first bracket. A tightening shaft insertion hole through which the tightening shaft is inserted is formed in the tightening member. The tightening member is movable in the tilt direction along the long slot for tilt. The fastening member fastens the pair of side plates by moving in the direction of the fastening shaft in accordance with the rotation of the fastening shaft.

JP, 2006-203773, A

  The arrangement of the fastening shaft and the outer shape of the side plate are limited by surrounding members. For this reason, in the steering device of Patent Document 1, the long slot for tilting is formed at a position biased to one side in the column axis direction on the side plate. Therefore, the plate width of the portion adjacent to the side plate from one side in the column axial direction is relatively narrower in the column axial direction than the long slot for tilting. Therefore, depending on the position of the tightening member in the long groove for tilting when the side plate is tightened, the ease of bending of the adjacent portion is likely to vary. Therefore, the support rigidity may vary depending on the position of the tightening member in the long slot for tilting when the side plate is tightened.

  The present invention has been made under such a background, and provides a steering device that can reduce variation in support rigidity due to the position of a tightening member in a long hole when a pair of side plates is tightened. With the goal.

  The invention according to claim 1 supports the steering shaft (3) and the steering shaft so that the steering shaft can rotate in a tilt direction (Y) intersecting the axial direction (X) of the steering shaft. A column jacket (4), a bracket (19) having a pair of side plates (22A, 22B) that support the column jacket and are opposed to each other with the column jacket interposed therebetween, and tightening the pair of side plates to the column jacket An elongated member (33) including an attaching member (26, 29) and a fastening shaft (24) for applying a fastening force for fastening the pair of side plates to the fastening member, wherein the side plate extends in the tilt direction. A first plate portion (71) adjacent to the elongated hole from one side (XL, XU) in the axial direction, and the other side (XU, L) and a second plate portion (72) having a plate width (W2) narrower in the axial direction than the first plate portion, and the tightening member is inserted through the elongated hole and tightened. The member has a quadrangular boss portion (51) as viewed from the tightening direction (J) for tightening the pair of side plates, and an insertion hole (52) provided in the boss portion and through which the tightening shaft is inserted. The diagonal center (55) of the boss portion is separated from the edge (72a) of the second plate portion on the other side in the axial direction from the center (56) of the insertion hole. A steering device (1) which is offset with respect to the center.

According to a second aspect of the present invention, the side plate is formed with a notch (35) for bringing the edge (22c) on the other side in the axial direction of the side plate close to the elongated hole, and the boss portion 2. The steering device according to claim 1, wherein a diagonal center is offset with respect to a center of the insertion hole so as to be separated from the notch.
In addition, in the above, the numbers in parentheses represent reference numerals of corresponding components in the embodiments described later, but the scope of the claims is not limited by these reference numerals.

  According to the first aspect of the present invention, the diagonal center of the boss portion of the fastening member is offset with respect to the center of the insertion hole of the fastening member. The positional relationship between the tightening shaft inserted through the insertion hole and the long hole of the side plate through which the boss part is inserted varies depending on the offset amount and the offset direction of the diagonal center of the boss part with respect to the center of the insertion hole. By offsetting the diagonal center of the boss portion with respect to the center of the insertion hole so as to be away from the edge of the second plate portion on the other side in the axial direction from the center of the insertion hole, it is more axial than the first plate portion. The width of the narrow second plate portion can be increased. Thereby, the dispersion | variation in the ease of bending of the 2nd board part by the position of the clamping member in a long hole when clamping a pair of side board can be suppressed. As a result, it is possible to suppress variation in support rigidity due to the position of the tightening member in the long hole when tightening the pair of side plates without changing the position of the tightening shaft and the outer shape of the side plates.

  According to invention of Claim 2, the notch which makes the outer edge part of the other side of the other side of the axial direction in a side plate adjoin to a long hole is formed in the side plate. Therefore, due to the presence of the notch, the plate width of the second plate portion adjacent to the long hole from the other side in the axial direction may be reduced. By offsetting the diagonal center of the boss portion with respect to the center of the insertion hole so as to be farther from the notch than the center of the insertion hole, the plate width of the second plate portion can be increased.

FIG. 1 is a schematic diagram illustrating a schematic configuration of a steering apparatus according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the steering apparatus, and is a cross-sectional view taken along line II-II shown in FIG. FIG. 3 is a cross-sectional view of a first fastening member provided in the steering device. FIG. 4 is a schematic diagram when the first fastening member is viewed from the fastening direction. FIG. 5 is a schematic cross-sectional view of the steering device, and is a cross-sectional view taken along line VV shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram showing a schematic configuration of a steering apparatus 1 according to the first embodiment of the present invention. With reference to FIG. 1, the steering device 1 includes a steering shaft 3, a column jacket 4, an intermediate shaft 5, a steering mechanism 6, a lower side support mechanism 7, and an upper side support mechanism 8.

One end of the steering shaft 3 is connected to a steering member 2 such as a steering wheel. The steering shaft 3 is connected to a steering mechanism 6 via an intermediate shaft 5. The steered mechanism 6 is connected to steered wheels (not shown). The steering device 1 steers the steered wheels via the steering mechanism 6 in conjunction with the steering of the steering member 2.
A direction in which the central axis C2 of the steering shaft 3 extends is referred to as a column axial direction X. The steering shaft 3 includes an upper shaft 9 to which the steering member 2 is connected to an end portion on the upper side XU in the column axial direction X, and a lower shaft 10 fitted to the upper shaft 9 so as to be relatively slidable in the column axial direction X. including. The steering shaft 3 is inserted into the column jacket 4. The column jacket 4 rotatably supports the steering shaft 3 via a plurality of bearings 11 and 12.

The column jacket 4 includes a hollow outer jacket 13 attached to the vehicle body 15 and a cylindrical inner jacket 14 fitted to the outer jacket 13.
The end portion of the upper side XU in the column axial direction X of the outer jacket 13 is fitted to the end portion of the lower side XL of the column axial direction X in the inner jacket 14. That is, the outer jacket 13 is a lower jacket, and the inner jacket 14 is an upper jacket. As the inner jacket 14 moves in the column axial direction X with respect to the outer jacket 13, the column jacket 4 can expand and contract in the column axial direction X.

  An end portion of the inner jacket 14 on the upper side XU in the column axial direction X is connected to the upper shaft 9 via the bearing 11. Therefore, the inner jacket 14 and the upper shaft 9 can move integrally in the column axial direction X. An end portion of the outer jacket 13 on the lower side XL in the column axial direction X supports the lower shaft 10 via a bearing 12 so as to be rotatable.

  The lower side support mechanism 7 supports the outer jacket 13 of the column jacket 4 so as to be able to rotate (tilt) in a substantially vertical direction (tilt direction Y). The lower support mechanism 7 includes a fixed bracket 16 that is fixed to the vehicle body 15, a column bracket 17 that is fixed to the outer jacket 13, and a tilt support shaft 18 that connects the fixed bracket 16 and the column bracket 17.

  By tilting the steering shaft 3 and the column jacket 4 around the center axis of the tilt support shaft 18, the position of the steering member 2 can be adjusted in the vertical direction (so-called tilt adjustment). Further, the position of the steering member 2 can be adjusted in the front-rear direction of the vehicle by expanding and contracting the steering shaft 3 and the column jacket 4 in the column axial direction X (so-called telescopic adjustment).

The upper support mechanism 8 includes a fixing bracket 19 fixed to the vehicle body 15 and a tightening mechanism 20.
FIG. 2 is a schematic cross-sectional view of the steering apparatus, and is a cross-sectional view taken along line II-II shown in FIG. The fixing bracket 19 includes a mounting plate 21A attached to the vehicle body 15, a top plate 21 fixed to the mounting plate 21A, and a pair of side plates 22A and 22B extending downward from both ends of the top plate 21.

  The tightening mechanism 20 achieves tilt lock and telescopic lock by tightening the outer jacket 13 from both sides via the pair of side plates 22A and 22B of the fixed bracket 19. The tightening mechanism 20 includes an operation lever 23, a tightening shaft 24, a rotating cam 25, a first tightening member 26 (non-rotating cam), a nut 28, a second tightening member 29, and a washer 30. The needle roller bearing 31 is provided.

The operation lever 23 functions as an operation member that is rotated by the driver. The fastening shaft 24 can rotate integrally with the operation lever 23. A central axis C <b> 1 of the fastening shaft 24 corresponds to the rotation center of the operation lever 23.
The outer jacket 13 is formed with a slit 40 extending from the end of the upper XU in the column axial direction X of the outer jacket 13 toward the lower XL of the column axial direction X. By reducing the width of the slit 40, the outer jacket 13 is elastically reduced in diameter.

A pair of side plate-like tightening portions 41 are provided at the end of the outer jacket 13 on the upper side XU in the column axial direction X. The pair of to-be-tightened portions 41 oppose each other in the fastening axis direction J that is the axial direction of the fastening shaft 24. One tightened portion 41 is disposed on each side of the slit 40 in the tightening axial direction J.
Each of the pair of side plates 22A and 22B of the fixed bracket 19 is formed with a long tilt hole 33 extending in the tilt direction Y. The pair of side plates 22A and 22B oppose each other in the tightening axial direction J with the pair of tightened portions 41 of the outer jacket 13 interposed therebetween. A pair of to-be-tightened part 41 has comprised the plate shape which each follows the inner side surface 22b of 22 A of corresponding side plates and 22B. The inner side surface 22b of each side plate 22A, 22B faces the outer side surface 41a of the corresponding tightened portion 41.

Each tightened portion 41 of the outer jacket 13 is formed with a tightening shaft insertion hole 34 formed of a circular hole through which the tightening shaft 24 is inserted. The tightening shaft 24, the column jacket 4, and the steering shaft 3 move integrally in the tilt direction Y during tilt adjustment.
The tightening shaft 24 includes a bolt that passes through the tilting elongated holes 33 of the pair of side plates 22A and 22B and the tightening shaft insertion holes 34 of the pair of tightened portions 41. A large-diameter head portion 24 a provided at one end of the fastening shaft 24 is fixed so as to be rotatable together with the operation lever 23.

  The rotating cam 25 and the first fastening member 26 are interposed between the head 24a of the fastening shaft 24 and the outer surface 22a of the one side plate 22A. The rotating cam 25 and the first fastening member 26 are cam-engaged with each other, thereby converting the rotational force of the operating lever 23 into the axial force of the fastening shaft 24 (the fastening force for fastening the pair of side plates 22A and 22B). The force conversion mechanism 27 is configured. A cam protrusion 25A is formed on the rotating cam 25, and a cam protrusion 26A on which the cam protrusion 25A rides is formed on the first tightening member 26. The rotary cam 25 is connected to the operation lever 23 in an integral rotation, and movement in the tightening axis direction J with respect to the tightening shaft 24 is restricted.

The nut 28 of the tightening mechanism 20 is screwed into the screw portion 24 b at the other end of the tightening shaft 24. A second fastening member 29, a washer 30, and a needle roller bearing 31 are interposed between the nut 28 and the other side plate 22 </ b> B of the fixed bracket 19.
The washer 30 and the needle roller bearing 31 are interposed between the second fastening member 29 and the nut 28. The washer 30 is interposed between the nut 28 and the second fastening member 29. The needle roller bearing 31 is interposed between the washer 30 and the second fastening member 29.

The first fastening member 26 includes a plate portion 50 that faces the outer side surface 22a of the corresponding side plate 22A, and a boss portion 51 that is fitted in the corresponding long slot 33 for tilt. An insertion hole 52 through which the tightening shaft 24 is inserted is formed in the first tightening member 26. The insertion hole 52 extends coaxially with the fastening shaft 24.
The second fastening member 29 has a fastening plate portion 60 that faces the outer side surface 22a of the corresponding side plate 22B, and a boss portion 61 that is fitted in the corresponding long slot for tilt 33. The second tightening member 29 is formed with an insertion hole 62 through which the tightening shaft 24 is inserted. The insertion hole 62 extends coaxially with the fastening shaft 24. The tightening direction in which the first tightening member 26 and the second tightening member 29 tighten the pair of side plates 22A and 22B corresponds to the tightening axial direction J.

One tightened portion 41 is formed with a boss portion fitting hole 42 into which the boss portion 51 of the first tightening member 26 is fitted. The boss portion fitting hole 42 is a hole with a bottom that allows the outer surface 41 a of one of the tightened portions 41 to be recessed. The tightening shaft insertion hole 34 communicates with the boss portion fitting hole 42 and penetrates the bottom surface of the boss portion fitting hole 42.
The first fastening member 26 is rotated by fitting the boss 51 of the first fastening member 26 with the corresponding elongated slot 33 for tilting or fitting the boss 51 with the boss fitting hole 42. It is regulated. The rotation of the second tightening member 29 is restricted by the fitting between the boss portion 61 of the second tightening member 29 and the corresponding long slot 33 for tilt.

  The rotating cam 25 is supported by the fastening shaft 24 so as not to move in the fastening shaft direction J with respect to the fastening shaft 24. The first tightening member 26 and the second tightening member 29 are supported by the tightening shaft 24 so as to be movable in the tightening axis direction J with respect to the tightening shaft 24. At the time of tilt adjustment, the first tightening member 26 and the second tightening member 29 move in the tilt direction Y within the tilt long hole 33 together with the tightening shaft 24.

  As the operation lever 23 rotates in the locking direction, the tightening shaft 24 rotates, and the first tightening member 26 and the second tightening member 29 are tightened with a tightening force for tightening the pair of side plates 22A and 22B. It is given from the attached shaft 24. Specifically, as the operating lever 23 rotates in the lock direction, the rotating cam 25 rotates with respect to the first tightening member 26 (non-rotating cam) together with the tightening shaft 24, so 25A rides on the cam protrusion 26A of the first tightening member 26. Therefore, the rotary cam 25 and the first tightening member 26 are separated from each other in the tightening axial direction J, and the first tightening member 26 and the second tightening member 29 are close to each other. Accordingly, the outer surfaces 22a of the pair of side plates 22A and 22B of the fixing bracket 19 are formed by the first tightening member 26 (the tightening plate portion 50) and the second tightening member 29 (the tightening plate portion 60). Pressed and tightened.

  Thereby, the inner side surface 22b of each side plate 22A, 22B of the fixing bracket 19 fastens the outer side surface 41a of the corresponding tightened portion 41 of the outer jacket 13. As a result, the movement of the outer jacket 13 in the tilt direction Y is restricted, and tilt lock is achieved. Further, when both the tightened portions 41 are tightened, the slit 40 is narrowed and the outer jacket 13 is elastically reduced in diameter. The outer jacket 13 tightens and holds the inner jacket 14 by reducing the diameter. Thereby, the movement of the inner jacket 14 in the column axial direction X is restricted, and telescopic locking is achieved. As a result, the position of the steering member 2 is fixed with respect to the vehicle body 15.

FIG. 3 is a cross-sectional view of the first fastening member 26. FIG. 4 is a schematic view of the first fastening member 26 as viewed from the fastening axial direction J. FIG. 5 is a schematic cross-sectional view of the steering device 1, and is a cross-sectional view taken along the line VV shown in FIG.
As shown in FIG. 3, the fastening plate portion 50 of the first fastening member 26 has a first surface 50a on which a cam projection 53 is formed and a second surface 50b opposite to the first surface 50a. The second surface 50b faces the one side plate 22A from the side opposite to the one tightening portion 41. The second surface 50b presses one side plate 22A. The boss portion 51 protrudes in the tightening axial direction J from the second surface 50b.

As shown in FIG. 4, the boss portion 51 of the first fastening member 26 has a parallelogram shape when viewed from the fastening axial direction J. The diagonal center 55 of the boss portion 51 is an intersection of the diagonal lines 57 of the boss portion 51 when viewed from the tightening axis direction J. The center 56 of the insertion hole 52 is a point on the central axis C1.
Referring to FIG. 5, one side plate 22 </ b> A is an extension line of a center line 33 c extending between both axial end edges 33 a and 33 b (an axial lower end edge 33 a and an axial upper end edge 33 b) of the tilting hole 33. The first plate portion 71 and the second plate portion 72 are partitioned by 33d and the tilt long hole 33. That is, the first plate portion 71 extends to the lower side XL of the column axis direction X with respect to the center line 33c and the extension line 33d. The second plate portion 72 extends to the upper side XU in the column axial direction X from the center line 33c and the extension line 33d.

The first plate portion 71 is adjacent to the tilt elongated hole 33 from the lower side XL (one side of the column axis direction X) of the column axis direction X. The second plate portion 72 is adjacent to the long slot for tilt 33 from the upper side XU in the column axial direction X (the other side in the column axial direction X). The plate width W2 of the second plate portion 72 in the column axis direction X is narrower than the plate width W1 of the first plate portion 71 in the column axis direction X.
The outer edge portion 22c of the side plate 22A is configured by an edge portion 71a on the lower side XL of the column axis direction X in the first plate portion 71 and an edge portion 72a on the upper side XU in the column axis direction X of the second plate portion 72. Yes.

In the second plate portion 72, the adjacent portion 72 </ b> A adjacent to the tilt long hole 33 from the upper side XU in the column axis direction X is long in the tilt direction Y. Therefore, the central portion of the adjacent portion 72A in the tilt direction Y has a lower rigidity than the both ends of the adjacent portion 72A in the tilt direction Y and is easily bent.
The side plate 22A is formed with a cutout 35 that cuts the side plate 22A into the lower side XL of the column axial direction X. The notch 35 is provided to facilitate bending of the side plate 22A when the pair of side plates 22A and 22B are fastened by the first fastening member 26 and the second fastening member 29. The notch 35 is located on the upper side XU in the column axis direction X with respect to the long slot for tilt 33 and on the upper side YU in the tilt direction Y with respect to the long slot for tilt 33.

  The outer edge 22 c of the upper side XU in the column axial direction X of the side plate 22 </ b> A is brought close to the long slot for tilt 33 by the notch 35. Specifically, the edge portion 72 a of the upper side XU of the second plate portion 72 in the column axial direction X is brought close to the long slot for tilt 33 by the notch 35. Accordingly, a narrow portion 75 having the narrowest plate width W2 in the second plate portion 72 is formed at the end of the second plate portion 72 on the upper side YU in the tilt direction Y.

The positional relationship between the tightening shaft 24 and the long slot for tilt 33 varies depending on the offset amount and the offset direction of the diagonal center 55 of the boss 51 with respect to the center 56 of the insertion hole 52. In this embodiment, the diagonal center 55 of the boss portion 51 is offset to the lower side XL of the column axial direction X with respect to the center 56 of the insertion hole 52.
Therefore, unlike this embodiment, compared with the configuration in which the diagonal center of the boss portion and the center of the insertion hole coincide with each other, in the present embodiment, the long slot for tilt 33 is arranged on the lower side XL of the column axial direction X. Can be formed. Therefore, the plate width W2 of the second plate portion 72 can be increased with respect to the column axis direction X. Thereby, the rigidity of the center part of the tilt direction Y in the adjacent part 72A of the second plate part 72 can be increased. Therefore, it is possible to suppress variation in the ease of bending of the second plate portion 72 due to the position of the first tightening member 26 in the long slot 33 for tilt.

As a result, without changing the position of the tightening shaft 24 and the outer shape of the side plate 22A, the support by the position of the first tightening member 26 in the long slot 33 for tilting when the pair of side plates 22A and 22B is tightened. Variation in rigidity can be suppressed.
In addition, since the variation in ease of bending of the side plate 22A due to the position of the first tightening member 26 in the tilting long hole 33 is suppressed, the operation force of the operation lever 23 required to bend the side plate 22A is stabilized. It can also be made.

  In the present embodiment, as described above, the side plate 22A is formed with the notch 35 that makes the edge portion 72a of the upper side XU of the second plate portion 72 in the column axial direction X close to the long slot 33 for tilt. Yes. For this reason, the plate width W <b> 2 of the second plate portion 72 may be reduced due to the presence of the notch 35. In this embodiment, since the diagonal center 55 of the boss portion 51 is offset to the lower side XL of the column axial direction X with respect to the center 56 of the insertion hole 52, the plate width W2 of the second plate portion 72 is increased. Can do.

In particular, if the diagonal center 55 of the boss 51 is offset from the center 56 of the insertion hole 52 so as to be farther from the notch 35 than the center 56 of the insertion hole 52, the diagonal center 55 is caused by the notch 35. The plate width W2 of the narrow portion 75 can be increased. Thereby, the rigidity of the central portion in the tilt direction Y in the adjacent portion 72A of the second plate portion 72 can be further improved.
The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

  For example, the boss portion 51 of the first tightening member 26 may have a rhombus shape when viewed from the tightening axial direction J. Further, the boss portion 51 may be a quadrangular shape that can move in the tilt direction Y within the long slot 33 for tilt, and may be a square shape or a rectangular shape as viewed from the tightening axis direction J. May be. In addition, the quadrangular shape includes a substantially parallelogram shape, a substantially rhombus shape, a substantially square shape, a substantially rectangular shape, and the like in which each vertex is chamfered when viewed from the tightening axis direction J.

  In the above-described embodiment, the diagonal center 55 of the boss portion 51 of the first fastening member 26 is offset to the lower side XL of the column axial direction X with respect to the center 56 of the insertion hole 52. However, the diagonal center 55 of the boss portion 51 is farther from the edge portion 72a of the upper side XU in the column axis direction X in the second plate portion 72 than the center 56 of the insertion hole 52 (particularly away from the notch 35). In addition, as long as it is offset with respect to the center 56 of the insertion hole 52, it may be offset in a direction different from the above-described embodiment (for example, the tilt direction Y).

  In the above-described embodiment, the first plate portion 71 is adjacent to the tilt slot 33 from the lower side XL of the column axis direction X, and the second plate portion 72 is tilted from the upper side XU of the column axis direction X to the tilt slot. Next to 33. However, unlike the above-described embodiment, the side plate 22A has a first plate portion 71 adjacent to the tilting elongated hole 33 from the upper side XU in the column axial direction X, and a second plate portion 72 on the lower side in the column axial direction X. It may be configured to be adjacent to the tilting elongated hole 33 from XL.

  That is, the plate width of the portion adjacent to the tilt long hole 33 from the lower side XL of the column axial direction X is narrower than the plate width of the portion adjacent to the tilt long hole 33 from the upper side XU of the column axial direction X. A side plate 22A may be used. In this case, for example, the diagonal center 55 of the boss portion 51 is separated from the edge portion 72 a on the lower side XL of the column plate direction X in the second plate portion 72 with respect to the center 56 of the insertion hole 52. It is offset to the upper side XU in the column axial direction X from the center 56.

  The same configuration as that of the first tightening member 26 can also be applied to the second tightening member 29. That is, the diagonal center of the quadrangular boss portion 61 (see FIG. 2) is from the edge portion 72a of the upper side XU in the column axial direction X in the second plate portion 72 rather than the center of the insertion hole 62 (see FIG. 2). It may be offset with respect to the center of the insertion hole 62 so as to be separated (away from the notch 35). In this case, the side plate 22B corresponding to the second fastening member 29 has the same configuration as the side plate 22A corresponding to the first fastening member 26.

Further, unlike the embodiment described above, the second fastening member 29, the washer 30 and the like may be omitted from the steering device 1.
In the embodiment described above, the outer jacket 13 is a lower jacket and the inner jacket 14 is an upper jacket. However, unlike the embodiment described above, the outer jacket 13 is an upper jacket and the inner jacket 14. The point may be a lower jacket.

  In addition, various changes can be made within the scope described in the claims.

  DESCRIPTION OF SYMBOLS 1 ... Steering device, 3 ... Steering shaft, 4 ... Column jacket, 19 ... Fixed bracket, 22A, 22B ... Side plate, 22c ... Outer edge part, 24 ... Fastening axis | shaft, 26 ... 1st fastening member, 29 ... 2nd fastening Attachment member, 33 ... long hole for tilt, 35 ... notch, 51 ... boss part, 52 ... insertion hole, 55 ... diagonal center, 56 ... center, 61 ... boss part, 62 ... insertion hole, 71 ... first plate , 72 ... second plate part, 72a ... edge, J ... fastening axis direction, X ... column axis direction, XL ... lower side, XU ... upper side, Y ... tilt direction

Claims (2)

A steering shaft,
A column jacket that supports the steering shaft so that the steering shaft can rotate in a tilt direction that intersects the axial direction of the steering shaft;
A bracket that supports the column jacket and has a pair of side plates facing each other across the column jacket;
A fastening member for fastening the pair of side plates to the column jacket;
A clamping shaft for applying a clamping force for clamping the pair of side plates to the clamping member;
The side plate has a long hole extending in the tilt direction, a first plate portion adjacent to the long hole from one side in the axial direction, and the first plate portion adjacent to the long hole from the other side in the axial direction. A second plate portion having a narrower plate width with respect to the axial direction than
The fastening member is inserted into the elongated hole, and the fastening member is provided in the boss portion having a rectangular shape as viewed from the fastening direction in which the pair of side plates are fastened, and the fastening shaft is inserted through the fastening member. Having an insertion hole,
The diagonal center of the boss part is offset with respect to the center of the insertion hole so as to be farther from the edge of the second plate part on the other side in the axial direction than the center of the insertion hole. apparatus. The side plate is formed with a notch that causes the outer edge of the side plate on the other side in the axial direction to be close to the slot.
The steering device according to claim 1, wherein a diagonal center of the boss portion is offset with respect to a center of the insertion hole so as to be separated from the notch.

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