JP6150335B2 - Steering device - Google Patents

Description

  The present invention relates to a steering device.

When the vehicle hits an obstacle such as another vehicle, a secondary collision in which the driver hits the steering wheel (steering member) may occur following the primary collision at that time. In the steering device, various structures have been proposed in which a part of the steering column is detached from the vehicle body and moved in the column axial direction (front of the vehicle body) in order to absorb the impact at the time of the secondary collision.
For example, in the steering column support device disclosed in Patent Document 1, a notch that extends parallel to the column axis direction is provided on a vehicle body side bracket that is fixed to the vehicle body. A locking capsule is fitted into the locking notch, and the locking capsule is positioned with respect to the vehicle body side bracket by a plurality of locking pins. And the column side bracket holding a steering wheel is connected with the latching capsule with the volt | bolt.

  At the time of the secondary collision, the plurality of locking pins are broken, so that the locking capsule is released from the vehicle body side bracket and moves along the locking notch together with the column side bracket. Thereby, the impact at the time of the secondary collision is absorbed.

JP 2012-121538 A

  In the steering column support device of Patent Document 1, the locking capsule rubs against the peripheral edge of the locking notch in the vehicle body side bracket at the time of a secondary collision. In order to smoothly absorb the impact at the time of the secondary collision, it is conceivable to use a configuration that reduces friction between the locking capsule and the peripheral portion, but this configuration can be easily used in the steering column support device. It is preferable that it can be assembled.

  The present invention has been made in view of such a background, and a steering capable of improving the assembling performance of a configuration that reduces friction between a pair of members that move relative to each other for absorbing a shock at the time of a secondary collision. An object is to provide an apparatus.

  The invention according to claim 1 is connected to the fixed bracket (23) fixed to the vehicle body (13) and the steering member (2), and at the time of a secondary collision, the steering member is accompanied by a predetermined moving direction ( Z1) is assembled to a movable bracket (24) that is movable relative to the fixed bracket toward the downstream side, and an upstream portion (321) of the movable bracket in the moving direction. An upstream slide member (89U) that slides on the fixed bracket while moving integrally with the movable bracket in a state of being interposed between a side portion and the fixed bracket; and a downstream side of the movable bracket in the moving direction The movable bracket is assembled to the portion (322) and is interposed between the downstream portion and the fixed bracket at the time of a secondary collision. The downstream slide member (89D) that slidably rubs against the fixed bracket while integrally moving, and the upstream slide member and the movable bracket are provided with a first protrusion (94) on one side and the first slide on the other side. A first concave portion (97) into which the convex portion is fitted is provided, and in the downstream slide member and the movable bracket, a second convex portion (94) is provided on one side, and the second convex portion is provided on the other side. A steering device (1) characterized in that a second recess (97) to be fitted is provided.

  In the invention according to claim 2, the movable bracket has the same direction from both sides in the plate-like portion (32) having the upstream portion and the downstream portion, and the direction perpendicular to the moving direction (Y1) in the plate-like portion. Each of the upstream slide member and the downstream slide member is inserted between the plate-like portion and the fixed bracket, and a main body portion (90). A sandwiching part (95) that extends from the body part and is disposed between the pair of bent parts and sandwiches the plate-like part between the body part and the body part in the orthogonal direction. The maximum dimension (M) is larger than the interval (L, N) between the pair of bent portions, and the interval (K) between the one end edge (95A) and the other end edge (95B) of the clamping portion in the orthogonal direction is The pair of bent portions And equal to or less than distance (L), a steering device according to claim 1.

The invention according to claim 3 is the steering apparatus according to claim 1 or 2, wherein the upstream slide member and the downstream slide member have the same structure.
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, in this steering device, at the time of the secondary collision, the movable bracket moves relative to the fixed bracket toward the downstream side in the moving direction, thereby absorbing the impact at the time of the secondary collision. can do.
Here, the upstream slide member assembled to the upstream portion of the movable bracket moves integrally with the movable bracket in a state of being interposed between the upstream portion and the fixed bracket. Further, the downstream slide member assembled to the downstream portion of the movable bracket moves integrally with the movable bracket in a state of being interposed between the downstream portion and the fixed bracket. Friction between the movable bracket and the fixed bracket can be reduced by the upstream slide member and the downstream slide member.

  In the upstream slide member and the movable bracket, the upstream slide member is moved to the upstream portion of the movable bracket by a simple operation of fitting the first convex portion provided on one side into the first concave portion provided on the other side. On the other hand, it can be easily assembled without making a mistake in the orientation. Moreover, since the 1st convex part is engage | inserted by the 1st recessed part, the position adjustment (in a moving direction and the orthogonal direction with respect to a moving direction) of the upstream slide member after an assembly | attachment becomes unnecessary.

  Similarly, in the downstream slide member and the movable bracket, the downstream slide member is moved to the downstream side of the movable bracket by a simple operation of fitting the second convex portion provided on one side into the second concave portion provided on the other side. It can be easily assembled to the part without making the wrong direction. Moreover, since the 2nd convex part is engage | inserted by the 2nd recessed part, the position adjustment (in a moving direction or an orthogonal direction) of the downstream slide member after an assembly | attachment becomes unnecessary.

As a result of the above, the assembly (upstream slide member and downstream slide member) that reduces the friction between a pair of members (between the movable bracket and the fixed bracket) that move relative to each other to absorb shock during a secondary collision It is possible to improve the performance.
According to invention of Claim 2, each of an upstream slide member and a downstream slide member can be more firmly assembled | attached with respect to a movable bracket by a clamping part.

  Here, in each of the upstream slide member and the downstream slide member, the maximum dimension (in the orthogonal direction) of the main body portion inserted between the plate-like portion of the movable bracket and the fixed bracket is a pair of bent portions in the movable bracket. Greater than the interval. Further, in each of the upstream slide member and the downstream slide member, the gap between the one end edge and the other end edge of the sandwiching portion in the orthogonal direction (if the plurality of sandwiching portions are aligned in the orthogonal direction, the upstream slide member and the downstream slide member are positioned at both ends in the orthogonal direction. The distance between the outer edges of the pair of sandwiching portions is equal to or less than the distance between the pair of bent portions.

  If it is such a dimensional relationship, in each of an upstream slide member and a downstream slide member, a main-body part cannot enter between a pair of bending parts. Therefore, each of the upstream slide member and the downstream slide member can be assembled to the movable bracket without making a mistake in the orientation (reverse assembly) so that the main body portion is inserted between the pair of bent portions. Therefore, it is possible to further improve the assemblability of the upstream slide member and the downstream slide member.

  According to the invention of claim 3, since the upstream slide member and the downstream slide member have the same structure, each of the upstream slide member and the downstream slide member can be assembled to the movable bracket without distinction. it can. Therefore, it is possible to further improve the assemblability of the upstream slide member and the downstream slide member.

FIG. 1 is a schematic side view of a steering device 1 according to an embodiment of the present invention, and shows a schematic configuration of the steering device 1. FIG. 2 is a schematic cross-sectional view of the steering device 1 of FIG. 1 and shows a cross section taken along the line II-II of FIG. FIG. 3 is an exploded perspective view of the steering device 1 of FIG. FIG. 4 is a perspective view of the movable bracket 24 to which the slide member 89 is assembled. FIG. 5 is a partially broken schematic plan view of the fixing bracket 23, the pair of suspension mechanisms T1 and T2, and the connection / release mechanism R1. FIG. 6 is a cross-sectional view in a state where the first plate 30 of the fixed bracket 23 and the second plate 32 of the movable bracket 24 are connected, and shows a cross-section in the front-rear direction including the axis of the pin 61. FIG. 7 is a cross-sectional view of the first plate 30 and the second plate 32 at the time of the secondary collision, and the second plate 32 is detached from the state of FIG. 6 to the downstream side in the predetermined movement direction Z1 due to the shearing of the pin 61. Shows the state. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 2, and shows a cross section of the first plate 30 and the coupling / detaching mechanism R1. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 2 and shows a cross section of the second plate 32 and the coupling / detaching mechanism R1. FIG. 10 is a perspective view of a slide member 89 according to a modification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic side view of a steering device 1 according to an embodiment of the present invention, and shows a schematic configuration of the steering device 1. The left side in FIG. 1 is the steering device 1 and the front side of the vehicle body (to which the steering device 1 is attached), and the right side in FIG. 1 is the steering device 1 and the rear side of the vehicle body. 1 is the upper side of the steering device 1 and the vehicle body, and the lower side in FIG. 1 is the lower side of the steering device 1 and the vehicle body.

Referring to FIG. 1, a steering device 1 includes a steering shaft 3 that is connected to a steering member 2 such as a steering wheel and extends in the front-rear direction, an intermediate shaft 5 that is connected to the steering shaft 3 via a universal joint 4, A pinion shaft 7 connected to the intermediate shaft 5 through a universal joint 6, a rack shaft 8, and a steering column 15 are mainly provided.
A pinion 7A is provided near the end (lower end) of the pinion shaft 7 and meshes with the rack 8A of the rack shaft 8. A steering mechanism A1 is configured by a rack and pinion mechanism including the pinion shaft 7 and the rack shaft 8. The rack shaft 8 is supported by a housing 10 fixed to a vehicle body side member (a vehicle body itself or a member fixed to the vehicle body, the same applies hereinafter) 9. The rack shaft 8 is movable in the vehicle width direction that is the width direction of the vehicle (the direction orthogonal to the paper surface). Each end of the rack shaft 8 is connected to steered wheels (wheels) via tie rods and knuckle arms (not shown).

  The steering shaft 3 includes, for example, an upper shaft 11 and a lower shaft 12 that are connected so as to be able to rotate together and to be relatively movable in the axial direction X1 by using, for example, spline coupling. The steering shaft 3 is rotatably supported by a steering column 15 fixed to the vehicle body side members 13 and 14 via bearings (upper bearing 75 and lower bearing 76).

  The steering column 15 includes a cylindrical upper jacket 16 and a lower jacket 17 that are fitted so as to be relatively movable in the axial direction X1 of the steering shaft 3, and a housing 18 that is connected to one end (lower end) of the lower jacket 17 in the axial direction X1. And. In the steering shaft 3, a midway portion between a front end portion (also a lower end portion) and a rear end portion (also an upper end portion) is accommodated in the steering column 15. The housing 18 is connected to the lower shaft 12 via a lower bearing 76. The upper jacket 16 is connected to the upper shaft 11 via an upper bearing 75 and can move in the axial direction X1 along with the upper shaft 11. The upper jacket 16 is moved in the axial direction X1 with respect to the lower jacket 17. By making the relative movement, telescopic adjustment (telescopic adjustment) of the steering column 15 and the steering shaft 3 becomes possible.

The housing 18 houses a speed reduction mechanism 20 that decelerates the power of the steering assisting electric motor 19 and transmits it to the lower shaft 12. The speed reduction mechanism 20 includes a drive gear 21 that is connected to a rotating shaft (not shown) of the electric motor 19 so as to be able to rotate along with the driven shaft 22 and a driven gear 22 that meshes with the drive gear 21 and rotates along with the lower shaft 12. Yes.
When steering is performed by rotating the steering member 2, the rotation of the steering member 2 is transmitted in this order to the steering shaft 3, the universal joint 4, the intermediate shaft 5, the universal joint 6, and the pinion shaft 7. It is converted into linear movement in the vehicle width direction. Thereby, the turning of a steered wheel is achieved. Further, if necessary, the electric motor 19 is driven to assist the rotation of the steering shaft 3, so that the steering of the steering member 2 is assisted.

As described above, in the present embodiment, the steering apparatus 1 is described based on an example in which the steering apparatus 1 is applied to an electric power steering apparatus. However, the present invention is not limited to manual steering with the electric motor 19. You may apply to an apparatus.
The lower bracket 59 fixed to the vehicle body side member 14 supports the tilt center shaft 36 that is a pivot shaft. The tilt center shaft 36 supports the entire steering column 15 through the housing 18 of the steering column 15 so as to be swingable around the tilt center shaft 36. Tilt adjustment is possible by swinging the steering column 15. Note that the present invention can be applied not only to a steering apparatus having both a telescopic adjustment function and a tilt adjustment function, but also to a steering apparatus having only one of the adjustment functions.

Next, the periphery of the vehicle body side member 13 in the steering device 1 will be described. Here, in addition to the above-described front-rear and up-down directions and the axial direction X1, the description will be made using the left-right direction Y1 (same as the above-described vehicle width direction) that is a direction orthogonal to the axial direction X1.
As shown in FIG. 2 which is a schematic cross-sectional view, the steering device 1 includes a fixed bracket 23 fixed to the vehicle body side member 13, a movable bracket 24 connected to the upper jacket 16, and a pair of suspension mechanisms T1, T2. And further. The fixed bracket 23 suspends the movable bracket 24 (in other words, the upper jacket 16 connected to the movable bracket 24) via the suspension mechanisms T1 and T2.

Next, the fixed bracket 23, the movable bracket 24, the suspension mechanisms T1, T2, and the like will be described with reference to FIG. 3 which is an exploded perspective view of the steering device 1. In FIG. 3, the upper left side is the front side of the steering device 1, and the lower right side is the rear side of the steering device 1.
The fixed bracket 23 is also referred to as an upper bracket, and is formed of, for example, a sheet metal. The fixed bracket 23 extends downward from a flat plate-like first plate 30 extending along both the axial direction X1 and the left-right direction Y1, and a pair of side edges (outer edges in the left-right direction Y1) of the first plate 30. A pair of side plates 37 and a pair of attachment plates 38 respectively extending outward (in the left-right direction Y1) from the pair of side plates 37 are provided. The upper surface 30A and the lower surface 30B of the first plate 30 are flat along both the axial direction X1 and the left-right direction Y1. Each mounting plate 38 is fixed to the vehicle body side member 13 by a metal fixing bolt 40 (see FIG. 5) inserted from below into a screw insertion hole 39 formed in each mounting plate 38 (see FIG. 5). 2). Thereby, the fixing bracket 23 is fixed to the vehicle body side member 13.

  The movable bracket 24 is also referred to as a tilt bracket, and is formed of sheet metal or the like, like the fixed bracket 23. The movable bracket 24 extends downward from a flat plate-like second plate 32 (plate-like portion) extending in parallel with the first plate 30 and a pair of side edges (outer edges in the left-right direction Y1) of the second plate 32. A pair of side plates 41 and a U-shape that is upside down. Thus, the pair of side plates 41 is a pair of bent portions bent in the same direction from both sides (strictly, both end portions) in the left-right direction Y1 in the second plate 32. The second plate 32 has a substantially rectangular shape (substantially square shape in FIG. 3) having two sides extending in the axial direction X1 and two sides extending in the left-right direction Y1. The upper surface 32A of the second plate 32 has a substantially rectangular shape that matches the second plate 32 in plan view, and the entire upper surface 32A is flat along both the axial direction X1 and the left-right direction Y1. The movable bracket 24 is located directly below the fixed bracket 23, and the upper surface 32 </ b> A of the second plate 32 of the movable bracket 24 is disposed to face the first plate 30 of the fixed bracket 23 from below. That is, the upper surface 32 </ b> A of the second plate 32 is a facing surface that faces the fixed bracket 23 in the movable bracket 24. The connecting portion 70 between the second plate 32 and each side plate 41 may be formed in a curved shape projecting outward in the left-right direction Y1 as shown in FIG.

  As shown in FIGS. 1 and 2, the steering device 1 includes a lock mechanism 29. Briefly described, the lock mechanism 29 is configured such that the position of the column jacket 26 (and thus the upper jacket) is moved via the movable bracket 24 by a tightening shaft 28 that moves in the left-right direction Y1 in accordance with the operation of the operation lever 27 by a driver or the like. 16 and the position of the steering member 2 are locked or unlocked.

  In relation to the lock mechanism 29, as shown in FIG. 2, the above-described column jacket 26 is fixed to the upper jacket 16 of the steering column 15. The column jacket 26 has a U-shape including a pair of side plates 71 that face the side plates 41 inside the pair of side plates 41 in the movable bracket 24 and a connecting plate 72 that connects the lower ends of the pair of side plates 71. ing.

  The above-described tightening shaft 28 is configured by a bolt that penetrates the movable bracket 24 and the side plates 41 and 71 of the column jacket 26 in the left-right direction Y1. Therefore, the column jacket 26 fixed to the upper jacket 16 and the movable bracket 24 are connected via the fastening shaft 28. Further, as described above, the steering member 2 is connected to the upper shaft 11 and the upper jacket 16 is connected to the upper shaft 11 (via the upper bearing 75) (see FIG. 1). The upper jacket 16 is connected. Therefore, it can be seen that the movable bracket 24 is connected to the steering member 2.

  Then, by rotating the nut 73 screwed to the tightening shaft 28 by the rotation operation of the operation lever 27, the both side plates 41, 71 are placed between the bolt head 28 </ b> A and the nut 73 on the tightening shaft 28. Tighten and lock both side plates 41, 71. Thereby, the position of the steering member 2 after telescopic adjustment and tilt adjustment can be locked. On the other hand, when the operation lever 27 is rotated in the opposite direction, the fastening (locking) of the side plates 41 and 71 is released, so that telescopic adjustment and tilt adjustment are possible.

  As shown in FIG. 3, a long groove 31 extending linearly along the axial direction X1 (front-rear direction) is formed in the first plate 30 of the fixed bracket 23 by stamping or cutting in press working. On the other hand, an insertion hole 33 is formed in the second plate 32 of the movable bracket 24. Each of the long groove 31 and the insertion hole 33 is provided in a pair corresponding to the pair of suspension mechanisms T1 and T2.

The pair of long grooves 31 penetrates the first plate 30 in the plate thickness direction, and are arranged in parallel with each other at an interval in the left-right direction Y1. In a plan view of the steering device 1 as viewed from above, both end portions (both the front end portion 31A and the rear end portion 31B) of each long groove 31 in the axial direction X1 are rounded in an arc shape.
In addition, the first plate 30 is integrally provided with a boundary portion 35 that partitions the pair of long grooves 31. The boundary portion 35 extends as a part of the fixing bracket 23 between the pair of long grooves 31 in a belt shape along the axial direction X1. A first through hole 66 that penetrates the boundary portion 35 (first plate 30) in the thickness direction is formed at one end portion (rear end portion) of the boundary portion 35 in the axial direction X1. The space | interval in the left-right direction Y1 of the 1st through-hole 66 and each long groove 31 is equal.

  The pair of insertion holes 33 are round holes that penetrate the second plate 32 in the plate thickness direction, and are arranged at intervals in the left-right direction Y1, and are formed in a part of the long groove 31 at the same position in the left-right direction Y1. On the other hand, it is facing from below. That is, one pair of insertion holes 33 is opposed to each of the pair of long grooves 31. In the second plate 32, a second through hole 67 that penetrates the second plate 32 in the plate thickness direction is formed between the pair of insertion holes 33 in the left-right direction Y1. The distance between the second through hole 67 and each insertion hole 33 in the left-right direction Y1 is equal. In addition, the 1st through-hole 66 and the 2nd through-hole 67 are holes in which the pin 61 mentioned later is penetrated, and it mentions later in detail.

In a normal state other than at the time of the secondary collision, the pair of insertion holes 33 (in the movable bracket 24) is in relation to the respective one end portions (rear end portions 31B) of the pair of long grooves 31 (in the fixed bracket 23). One by one (see FIG. 1).
Each of the suspension mechanisms T1 and T2 includes a suspension member 25, a plate spring 42 such as a disc spring, a nut 34, and a slide plate 43. Each of the suspension member 25, the leaf spring 42, and the nut 34 is provided in pairs (two) according to the suspension mechanisms T1, T2, and is arranged side by side in the left-right direction Y1.

  The suspension member 25 is a bolt that extends vertically and has a head 52 at the upper end. Each suspension member 25 is inserted one by one from above into the rear end portion 31B of the long groove 31 (of the first plate 30) and the insertion hole 33 (of the second plate 32) which are in an opposing state. Then, the lower end portion of each suspension member 25 is screwed into the nut 34. Thereby, each suspension member 25 is connected to the first plate 30 and the second plate 32 in cooperation with the nut 34, and extends from the fixed bracket 23 to move the movable bracket 24 (in other words, the column jacket 26 and the upper). The jacket 16) is suspended (see FIG. 2).

  Further, referring to FIG. 1, each suspension member 25 is moved along the long groove 31 at the time of a secondary collision, along with the movable bracket 24, the column jacket 26, the upper jacket 16, the upper shaft 11, and the steering member 2. It is possible to move forward in the axial direction X1. At this time, the long groove 31 guides the movement of the suspension member 25 at the time of the secondary collision. At this time, the movable bracket 24 moves relative to the fixed bracket 23 toward the front side along the axial direction X1 along with the steering member 2. Here, if the reference sign “Z1” is given to the moving direction of the movable bracket 24 at the time of the secondary collision, the axial direction X1 and the moving direction Z1 are parallel to each other, and the front side in the axial direction X1 is a predetermined value. This is the downstream side in the moving direction Z1. Note that the housing 18 of the steering column 15 may be detached from the lower bracket 59 on the vehicle body side as necessary so that the suspension member 25 and the movable member can move smoothly.

  The above-described slide plate 43 is a thin plate that is long in the left-right direction Y1, and as shown in FIG. 2, the plate spring 42 and the first plate 30 are in a state where the plate thickness direction coincides with the first plate 30. It is interposed between the upper surface 30A. At least the entire surface of the slide plate 43 on the first plate 30 side (the lower surface, referred to as the sliding surface 43A) is provided with a friction reducing material 81 such as fluororesin or tetrafluoroethylene resin. (See also FIGS. 6 and 7 to be described later). The entire slide plate 43 may be formed of the friction reducing material 81, or only the sliding surface 43A of the slide plate 43 may be covered with the friction reducing material 81. In the slide plate 43, one second insertion hole 44 penetrating the slide plate 43 in the plate thickness direction is provided at a position facing each of the pair of insertion holes 33 in the movable bracket 24 (the same position in the left-right direction Y1). (A total of one pair) is formed. These second insertion holes 44 are arranged in the left-right direction Y1.

  Each suspension member 25 includes an annular leaf spring 42, a corresponding second insertion hole 44 in the slide plate 43 (in the same position in the left-right direction Y1), a corresponding long groove 31 in the first plate 30, and a second plate. The corresponding insertion holes 33 of 32 are inserted from above in this order and screwed into the nuts 34 below the second plate 32. Thereby, each suspension member 25 suspends the movable bracket 24.

  At the time of the secondary collision, the suspension member 25 moves together with the movable bracket 24 along the long groove 31 of the fixed bracket 23. At this time, the slide plate 43 slides forward (downstream in the movement direction Z1) with respect to the fixed bracket 23. It can move together with the pair of suspension members 25 by moving. In the slide plate 43, the aforementioned sliding surface 43 </ b> A slides with respect to the upper surface 30 </ b> A of the first plate 30 of the fixed bracket 23.

  Here, the steering device 1 further includes a slide member 89 for reducing friction (sliding resistance) between the first plate 30 of the fixed bracket 23 and the second plate 32 of the movable bracket 24 at the time of the secondary collision. Contains. For convenience of explanation, there is a view (FIG. 1 and the like) in which the slide member 89 is not shown. As shown in FIG. 3, there are two slide members 89, and these slide members 89 are arranged side by side in the movement direction Z1. The upstream (rear) slide member 89 in the movement direction Z1 is referred to as an upstream slide member 89U, and the downstream (front) slide member 89 in the movement direction Z1 is referred to as a downstream slide member 89D.

In the description of the slide members 89 (the upstream slide member 89U and the downstream slide member 89D), not only FIG. 3 but also FIG. 4 will be referred to. In FIG. 4, the lower left side in the drawing is the front side of the steering device 1, and the upper right side is the rear side of the steering device 1.
The upstream slide member 89U and the downstream slide member 89D have the same structure, and have the same shape and size. Therefore, hereinafter, each slide member 89 may be described without being distinguished from the upstream slide member 89U and the downstream slide member 89D.

Each slide member 89 integrally includes a main body 90 and a bent portion 91.
Referring to FIG. 3, the main body 90 has a thin plate shape arranged in parallel with each of the first plate 30 and the second plate 32. The main body 90 when viewed from the thickness direction has a long rectangular shape in the left-right direction Y1. In the main body 90, the left and right edges extending in the axial direction X1 are a pair of left and right sides (short sides) in the rectangular shape, and the front and rear edges extending in the left and right direction Y1 are front and rear in the rectangular shape. A pair of sides (long sides). The center in the left-right direction Y1 of one of the front end edge and the rear end edge of the main body 90 (the front end edge in the case of the upstream slide member 89U and the rear end edge in the case of the downstream slide member 89D) A cutout portion 93 is formed so as to cut through the main body portion 90 in the thickness direction. The notch 93 is recessed toward the other of the front edge and the rear edge of the main body 90 (the rear edge in the case of the upstream slide member 89U and the front edge in the case of the downstream slide member 89D). . The notch 93 has a rectangular shape that becomes narrower in the left-right direction Y1 toward the other side.

  In the main body 90, the upper surface is denoted by “90A” and the lower surface is denoted by “90B”. On the lower surface 90B, one convex portion 94 projecting downward (two in total) is provided on both sides of the notch portion 93 in the left-right direction Y1. When a portion where the convex portion 94 is to be formed on the upper surface 90A of the main body 90 is recessed downward by embossing or the like, a portion corresponding to the portion on the lower surface 90B rises downward in a substantially hemispherical shape. This substantially hemispherical portion is the convex portion 94. In the main body 90, these two convex portions 94 are arranged so as to be symmetric with respect to the notch portion 93. The convex portion 94 of the upstream slide member 89U functions as a first convex portion, and the convex portion 94 of the downstream slide member 89D functions as a second convex portion.

  Of the front end edge and the rear end edge of the main body 90, the bent portion 91 is the rear end edge in which the notched portion 93 is not formed (in the case of the upstream slide member 89U, the rear end edge of the downstream slide member 89D). In the case of the front edge). One bent portion 91 (two in total) is provided on both ends of the main body 90 in the left-right direction Y1 (a little inside in the left-right direction Y1 from both ends). Each bent portion 91 is slightly forward or backward from the main body portion 90 (on the side away from the notch portion 93, the rear side in the case of the upstream slide member 89U and the front side in the case of the downstream slide member 89D). After extending, the main body 90 is bent downward from the main body 90 so as to be substantially perpendicular to the main body 90. In addition, a portion (a portion connected to the main body portion 90) that extends from the main body portion 90 to the front and rear in each bent portion 91 may be regarded as a part of the main body portion 90. Each bent portion 91 has a hook-shaped hook shape. The thickness of the bent portion 91 is the same as the thickness of the main body 90. Moreover, in each bending part 91, the front-end | tip part (lower end part in FIG. 3) on the opposite side to the main-body part 90 side is bend | folded to the notch part 93 side. When this leading end portion is referred to as a sandwiching portion 95, the sandwiching portion 95 is a part of the bent portion 91 that extends from the main body portion 90, and is formed on the lower surface 90 </ b> B of the main body portion 90 as it approaches the notch portion 93. It inclines with respect to the main-body part 90 (axial direction X1) so that it may approach.

Each slide member 89 as described above has a symmetrical shape with respect to the center in the left-right direction Y1.
Here, in each slide member 89, a plurality of (here, two on the left and right) sandwiching portions 95 are regarded as one sandwiching portion 95, and one end edge 95A and the other end edge 95B of the one sandwiching portion 95 in the left-right direction Y1 are defined. Define. Focusing on the upstream slide member 89U in FIG. 3, in this embodiment, one end edge 95A is actually the left end edge of the left holding part 95 in the two holding parts 95, and the other end edge 95B is the right side edge 95B. It is the right end edge of the clamping part 95. Alternatively, the one end edge 95 </ b> A may be the right end edge of the right holding part 95, and the other end edge 95 </ b> B may be the left end edge of the left holding part 95. This also applies to the downstream slide member 89D. In any case, the interval K between the one end edge 95A and the other end edge 95B of the clamping portion 95 in the left-right direction Y1 is equal to or less than the interval L between the pair of side plates 41 at the boundary between the pair of side plates 41 and the second plate 32 in the movable bracket 24. It is. Strictly speaking, the interval K is slightly smaller than the interval L. On the other hand, the maximum dimension M of the main body 90 in the left-right direction Y1 is the distance L between the pair of side plates 41, and further the maximum distance N between the pair of side plates 41 (see FIG. 4). Larger than the distance L).

  Further, the maximum dimension P in the axial direction X1 of the main body 90 of the upstream slide member 89U (including a portion extending from the main body 90 to the rear side in each bent portion 91) is the second plate 32 of the movable bracket 24. Is smaller than the dimension Q in the axial direction X1 of the region behind the insertion hole 33 and the second through hole 67 on the upper surface 32A. Further, the maximum dimension P in the axial direction X1 of the main body 90 of the downstream slide member 89D (including a portion extending from the main body 90 to the front side in each bent portion 91) is the insertion hole 33 and the second dimension on the upper surface 32A. It is smaller than the dimension V in the axial direction X <b> 1 of the region in front of the through hole 67. However, in this embodiment, since the upstream slide member 89U and the downstream slide member 89D have the same structure, the maximum dimension P in the axial direction X1 of the main body 90 is the same for the upstream slide member 89U and the downstream slide member 89D. The same.

  Each slide member 89 is manufactured by forming a cutout portion 93 in one thin plate and then bending the thin plate to form a bent portion 91 (including the clamping portion 95). Note that an R chamfered portion 96 is naturally formed at the bent portion of each bent portion 91 (see FIG. 4). The R chamfered portion 96 has an arc shape that rounds the corners of the bent portion. Further, the edge of the slide member 89 (particularly, the front end edge of the upper surface 90A of the main body 90 and the edge of the notch 93) is rounded so as not to be sharp.

Each slide member 89 is assembled from the axial direction X (upstream or downstream in the moving direction Z1) with respect to the second plate 32 of the movable bracket 24 with each bent portion 91 facing downward.
Here, in relation to the assembly of each slide member 89 to the second plate 32, the upper surface 32A of the rear end portion 321 of the second plate 32 (upstream portion of the movable bracket 24 in the moving direction Z1) has a recess 97. (1st recessed part) is provided. A recess 97 (second recess) is also provided on the upper surface 32A of the front end 322 of the second plate 32 (downstream part of the movable bracket 24 in the moving direction Z1). In each of the front end portion 322 and the rear end portion 321, the same number (here, two) of concave portions 97 as the convex portions 94 of each slide member 89 are provided side by side in the left-right direction Y <b> 1. In each of the front end 322 and the rear end 321, the two recesses 97 are arranged symmetrically with respect to the center of the second plate 32 in the left-right direction Y <b> 1, and the interval between the two recesses 97 depends on each slide member. It is equal to the interval between the two convex portions 94 at 89. Further, the two concave portions 97 of the front end portion 322 are located in front of the insertion hole 33 and the second through hole 67, and the two concave portions 97 of the rear end portion 321 are formed of the insertion hole 33 and the second through hole 67. It is located on the back side. In this embodiment, each recess 97 penetrates the second plate 32 from the upper surface 32A in the thickness direction and reaches the lower surface 32B (see FIGS. 6 and 7 described later), but reaches the lower surface 32B. It does not have to be. Further, the cross section of each concave portion 97 has a circular shape having a diameter that is substantially the same (or slightly larger) as that of the substantially hemispherical convex portion 94.

  The upstream slide member 89U is disposed on the rear side of the rear end portion 321 of the second plate 32 in a state where the cutout portion 93 faces the front side, and is located on the rear side (movement direction) with respect to the rear end portion 321. Assembled from the upstream side in Z1). The downstream slide member 89D is disposed in front of the front end portion 322 of the second plate 32 with the notch 93 facing rearward, and is on the front side (downstream side in the movement direction Z1) with respect to the front end portion 322. It is assembled from.

  As shown in FIG. 4, in the upstream slide member 89U after assembly, the main body 90 is placed on the rear end 321 of the second plate 32 from above, and is along the upper surface 32A of the rear end 321. And each convex part 94 in the lower surface 90B of the main-body part 90 is closely fitted from above on the concave part 97 in the same position in the left-right direction Y1 on the upper surface 32A of the rear end part 321 (with almost no play). (See also FIGS. 6 and 7). In the upstream slide member 89U, the left and right bent portions 91 are hooked on the movable bracket 24 (the rear end portion 321 of the second plate 32) from the rear side (upstream side in the movement direction Z1 described above). Further, the sandwiching portion 95 at the tip of each bent portion 91 sandwiches the rear end portion 321 of the second plate 32 with the main body portion 90 while being disposed between the pair of side plates 41 in the movable bracket 24. (See also FIGS. 6 and 7). In the upstream slide member 89U before assembly, as described above, the clamping portion 95 is inclined with respect to the main body 90 so as to approach the lower surface 90B of the main body 90 as it approaches the notch 93. Therefore, in the upstream slide member 89U after assembly, the clamping portion 95 elastically sandwiches the rear end portion 321 with the main body portion 90.

  Further, in the downstream slide member 89D after assembly, the main body 90 is placed on the front end 322 of the second plate 32 from above, and is along the upper surface 32A of the front end 322. And each convex part 94 in the lower surface 90B of the main-body part 90 is exactly fitted from the upper part with respect to the recessed part 97 in the left-right direction Y1 in the upper surface 32A of the front-end part 322 (FIG. 6 and FIG. 7 also). reference). In the downstream slide member 89D, the left and right bent portions 91 are hooked on the movable bracket 24 (the front end portion 322 of the second plate 32) from the front side (downstream side in the movement direction Z1 described above). Further, the sandwiching portion 95 at the tip of each bent portion 91 sandwiches the front end portion 322 of the second plate 32 with the main body portion 90 while being disposed between the pair of side plates 41 in the movable bracket 24 ( (See also FIGS. 6 and 7). In the downstream slide member 89D before assembly, as described above, the clamping portion 95 is inclined with respect to the main body 90 so as to approach the lower surface 90B of the main body 90 as it approaches the notch 93. Therefore, in the downstream slide member 89 </ b> D after assembly, the clamping portion 95 elastically sandwiches the rear end portion 321 with the main body portion 90.

  From the relationship between the dimensions P, Q, and V (P <Q, P <V, see FIG. 3), the upstream slide member 89U and the downstream slide member 89D placed on the second plate 32 are in the axial direction. In X1, they are separated from each other with a gap W therebetween. The notch 93 of each slide member 89 is a part of the gap W. Therefore, the gap W is wide at both sides in the axial direction X1 at the center in the left-right direction Y1. From such a gap W, the second through hole 67 of the second plate 32 and both the insertion holes 33 are completely exposed. The cutout portions 93 of both slide members 89 are located on both sides of the second through hole 67 in the axial direction X1.

Further, in each slide member 89, the above-described friction reducing material 81 is provided at least over the entire upper surface 90A of the main body 90 (including the upper surface of the portion extending from the main body 90 in the axial direction X1 in each bent portion 91). Is provided. Of course, the entire slide member 89 may be composed of the friction reducing material 81.
With reference to FIG. 2, in the state where each suspension member 25 extends from the fixed bracket 23 and suspends the movable bracket 24 as described above, in each slide member 89 assembled to the movable bracket 24, the main body 90 is The movable bracket 24 is inserted between the upper surface 32 A of the second plate 32 and the first plate 30 of the fixed bracket 23. In the main body 90, the upper surface 90 </ b> A is in surface contact with the lower surface 30 </ b> B of the first plate 30 from below via the friction reducing material 81. Therefore, a pair of front and rear slide members 89 are always interposed between the upper surface 32A of the second plate 32 (movable bracket 24) and the lower surface 30B of the first plate 30 (fixed bracket 23). The movable bracket 24 and the fixed bracket 23 are not in direct contact (see also FIGS. 6 and 7).

  Next, the suspension member 25 will be described in detail with reference to FIG. 3. Each suspension member 25 includes the above-described flange-shaped head 52, a large-diameter portion 53 that is continuous with the head 52, and has a smaller diameter than the head 52. A small-diameter portion 54 connected to the large-diameter portion 53 and having a smaller diameter than the large-diameter portion 53, a step portion 55 formed between the large-diameter portion 53 and the small-diameter portion 54, and a screw portion 56 provided in the small-diameter portion 54 Integrated. The head 52 is provided with a tool engaging portion 57 having a hexagonal hole shape, for example.

  In a normal state other than the time of the secondary collision, as shown in FIG. 2, in each suspension member 25, the head 52 is engaged with the leaf spring 42 from above. In each suspension member 25, the large-diameter portion 53 is inserted from above into the hollow portion of the leaf spring 42, the second insertion hole 44 of the slide plate 43, and the rear end portion 31 </ b> B of the long groove 31. . Thereby, the slide plate 43 is in a state of being interposed between the head 52 of each suspension member 25 and the fixing bracket 23 (the edge of the long groove 31). The step portion 55 passes through the gap W in the axial direction X1 between the upstream slide member 89U and the downstream slide member 89D, contacts the upper surface 32A of the second plate 32, and is received by the upper surface 32A. The second plate 32 is sandwiched between the step portion 55 and the nut 34, and the suspension member 25 and the second plate 32 are fixed.

  The distance H1 between the head 52 and the step 55 (corresponding to the axial length of the large-diameter portion 53) is the thickness of the main body 90 of each slide member 89 interposed between the first plate 30 and the second plate 32. And the thickness of the first plate 30, the thickness of the slide plate 43 along the upper surface 30 </ b> A of the first plate 30, and the total thickness of the plate spring 42 at the time of the most compression. Thus, the leaf spring 42 elastically biases the first plate 30 toward the second plate 32 via the slide plate 43.

In the normal state described above, each suspension member 25 is located at the rear end 31B of the long groove 31 (see FIG. 5). The position of the movable bracket 24 (second plate 32) in the axial direction X1 (movement direction Z1) at this time is referred to as an initial position (see also FIGS. 1, 2 and 6).
The steering device 1 includes a connecting / disconnecting mechanism R1. The connecting / disconnecting mechanism R1 connects the fixed bracket 23 and the movable bracket 24, and when the secondary collision occurs, the movable bracket 24 is moved from the initial position to the front side in the axial direction X1 as shown in FIG. 7 (downstream side in the moving direction Z1). The first plate 30 is separated (relatively moved) toward the front.

  As shown in FIG. 2 and FIG. 5 which is a partially broken schematic plan view, the connecting / disconnecting mechanism R1 is between the pair of suspension mechanisms T1 and T2 (that is, the first plate 30 of the fixing bracket 23) in the left-right direction Y1. Between the pair of long grooves 31). Specifically, the connecting / disconnecting mechanism R1 is disposed at the center position between the pair of long grooves 31 (that is, between the pair of suspension members 25) in the left-right direction Y1. The connecting / disconnecting mechanism R1 includes a resin-made pin 61 that shears (breaks) at the time of a secondary collision, and a cylindrical metal collar 62 fitted to a part of the pin 61 in the axial direction (FIG. 3). reference). Instead of the metal collar 62, a color such as high hardness resin or ceramic may be used.

With reference to FIG. 6, the pin 61 of the coupling / detaching mechanism R <b> 1 includes, for example, a head 63 having a circular cross section and a columnar shaft 64 having a smaller diameter than the head 63. The cylindrical metal collar 62 is fitted on the outer periphery of the shaft portion 64. The outer diameter of the metal collar 62 is equal to the outer diameter of the head 63 of the pin 61.
In the normal state described above, the first through hole 66 of the first plate 30 of the fixed bracket 23 and the second through hole 67 of the second plate 32 of the movable bracket 24 are in the axial direction X1 (moving direction Z1) and the left-right direction. In Y1, they are in the same position (inner region of the gap W between the upstream slide member 89U and the downstream slide member 89D) and face each other vertically. At this time, the head 63 of the pin 61 and most of the metal collar 62 are inserted into the first through hole 66 of the first plate 30 of the fixing bracket 23. A part of the metal collar 62 protrudes downward from the first through hole 66. A portion of the shaft portion 64 of the pin 61 that protrudes from the metal collar 62 is inserted into the second through hole 67 of the second plate 32 of the movable bracket 24. That is, the pin 61 is inserted over the first through hole 66 and the second through hole 67 that are in the opposing state. Accordingly, the pin 61 positions the movable bracket 24 with respect to the fixed bracket 23.

A first end portion 621 (the upper end portion in FIG. 6) of the metal collar 62 in contact with the head 63 of the pin 61 and a second end portion 622 in the axial direction of the metal collar 62 (lower end portion in FIG. 6). Is received by the upper surface 32 </ b> A of the second plate 32. As a result, the pin 61 and the metal collar 62 are prevented from dropping below the second plate 32.
On the other hand, the slide plate 43 is disposed so as to cover the top of the head portion 63 of the pin 61, so that the pin 61 is prevented from falling off. In addition, a peep hole 65 smaller than the outer diameter of the head 63 is formed in the slide plate 43 so as to face the head 63 of the pin 61. By visually recognizing the head 63 of the pin 61 through the viewing hole 65 of the slide plate 43 after assembling the connecting / disconnecting mechanism R1, it is possible to easily determine a work defect such as forgetting to attach the pin 61.

As shown in FIG. 8 which is a cross section taken along line VIII-VIII in FIG. 2, the first through hole 66 of the first plate 30 is located at the center position between the long grooves 31 for the suspension mechanisms T1, T2 in the left-right direction Y1. One is arranged in each. That is, the pin 61 is disposed at the center position between the pair of suspension members 25 in the left-right direction Y1.
Further, each first through hole 66 of the first plate 30 is formed in a horizontally long hole that is long in the left-right direction Y1. Thereby, gaps S1 and S2 are provided between the outer periphery of the metal collar 62 and the inner periphery of the first through hole 66 in the left-right direction Y1.

As shown in FIG. 9 which is a cross section taken along line IX-IX in FIG. 2, the second through hole 67 of the second plate 32 of the movable bracket 24 is located at the center position between the pair of insertion holes 33 in the left-right direction Y1. One is arranged. The second through hole 67 is formed by a circular hole having an inner diameter that is the same as or slightly larger than the outer diameter of the shaft portion 64 of the pin 61.
At the time of the secondary collision, the first through hole 66 and the second through hole 67 are displaced as shown in FIG. The shaft 64 of the pin 61 is positioned at a position between the first through hole 66 and the second through hole 67 due to the displacement of the mating surface between the second end 622 of the metal collar 62 and the second plate 32. Sheared (broken). The shear blade constituted by the inner peripheral edge of the second end 622 of the metal collar 62 has an arc shape (see FIG. 8), and the shear blade constituted by the edge of the second through hole 67 of the second plate 32 is also used. The arc shape (see FIG. 9).

  At the time of the secondary collision, the movable bracket 24 is released from the fixed bracket 23 due to the breakage of the pin 61 and, as described above, from the initial position (see FIG. 6) to the front side in the axial direction X1 (moving direction) as shown in FIG. Leave to the downstream side in Z1. That is, at the time of a secondary collision, the pin 61 breaks between the first through hole 66 and the second through hole 67 that are displaced from each other, thereby permitting relative movement of the movable bracket 24 with respect to the fixed bracket 23 in the axial direction X1. . Thereby, the impact in the secondary collision is absorbed.

  At the time of the secondary collision, the upstream slide member 89U assembled to the rear end 321 of the movable bracket 24 is connected to the rear end 321 (the upper surface 32A of the rear end 321) and the fixed bracket 23 (the lower surface of the first plate 30). 30B) and move integrally with the movable bracket 24 toward the downstream side in the movement direction Z1. Further, at the time of the secondary collision, the downstream slide member 89D assembled to the front end 322 of the movable bracket 24 includes the front end 322 (the upper surface 32A at the front end 322) and the fixed bracket 23 (the lower surface 30B of the first plate 30). In a state of being interposed between the movable bracket 24 and the movable bracket 24, the movable bracket 24 moves integrally with the movable bracket 24 toward the downstream side in the movement direction Z1. The upstream slide member 89U and the downstream slide member 89D rub against the lower surface 30B of the first plate 30 of the fixed bracket 23 while moving integrally with the movable bracket 24 in this way. Specifically, in each of the upstream slide member 89U and the downstream slide member 89D, the surface (upper surface 90A) of the main body 90 on the first plate 30 side rubs against the fixed bracket 23 via the friction reducing material 81. .

As described above, in the steering device 1, the movable bracket 24 moves relative to the fixed bracket 23 toward the downstream side in the movement direction Z1 during the secondary collision, thereby absorbing the impact during the secondary collision. be able to.
Here, the upstream slide member 89U assembled to the rear end 321 of the movable bracket 24 moves integrally with the movable bracket 24 while being interposed between the rear end 321 and the fixed bracket 23. Further, the downstream slide member 89 </ b> D assembled to the front end 322 of the movable bracket 24 moves integrally with the movable bracket 24 while being interposed between the front end 322 and the fixed bracket 23. The friction between the movable bracket 24 and the fixed bracket 23 can be reduced by the upstream slide member 89U and the downstream slide member 89D.

  Then, in the upstream slide member 89U and the movable bracket 24, the convex portion 94 provided on one (here, the upstream slide member 89U) is fitted into the concave portion 97 provided on the other (here, the movable bracket 24). Through a simple operation, the upstream slide member 89U can be easily assembled to the rear end 321 of the movable bracket 24 without making a mistake in the vertical (front and back) orientation. Further, since the convex portion 94 is fitted in the concave portion 97, it is not necessary to adjust the position of the upstream slide member 89U after assembly (in the movement direction Z1 or the left-right direction Y1).

  Similarly, in the downstream slide member 89D and the movable bracket 24, the convex portion 94 provided on one (here, the downstream slide member 89D) is fitted into the concave portion 97 provided on the other (here, the movable bracket 24). By such simple operations, the downstream slide member 89D can be easily assembled to the front end 322 of the movable bracket 24 without making a mistake in the vertical direction. Further, since the convex portion 94 is fitted in the concave portion 97, it is not necessary to adjust the position of the downstream slide member 89D after assembly (in the movement direction Z1 or the left-right direction Y1).

  As a result, the man-hour reduction for the assembly of the slide members 89 and the simplification of the adjustment of the assembly position are achieved. Therefore, a configuration that reduces friction between a pair of members (between the movable bracket 24 and the fixed bracket 23) that move relative to absorb shock during a secondary collision (upstream slide member 89U and downstream slide member 89D). Assembling performance can be improved.

In addition, each of the upstream slide member 89U and the downstream slide member 89D can be more firmly assembled to the movable bracket 24 by the clamping portion 95.
Here, referring to FIG. 3, in each of the upstream slide member 89U and the downstream slide member 89D, the main body 90 inserted between the second plate 32 of the movable bracket 24 and the fixed bracket 23 (in the left-right direction). The maximum dimension M (in Y1) is larger than the distances L and N between the pair of side plates 41 (see FIG. 4). Further, in each of the upstream slide member 89U and the downstream slide member 89D, the interval between the one end edge 95A and the other end edge 95B of the sandwiching portion 95 in the left-right direction Y1 (when a plurality of sandwiching portions 95 are aligned in the left-right direction Y1 Is the distance between the outer edges of the pair of sandwiching portions 95 located at both ends in the left-right direction Y1) K is equal to or less than the distance L between the pair of side plates 41.

  With such a dimensional relationship, the main body 90 cannot enter between the pair of side plates 41 in each of the upstream slide member 89U and the downstream slide member 89D. Therefore, each of the upstream slide member 89U and the downstream slide member 89D is assembled to the movable bracket 24 without making a mistake (reverse assembly) so that the main body 90 is inserted between the pair of side plates 41. Can do. Therefore, the assembling property of the upstream slide member 89U and the downstream slide member 89D can be further improved.

Further, since the upstream slide member 89U and the downstream slide member 89D have the same structure, each of the upstream slide member 89U and the downstream slide member 89D can be assembled to the movable bracket 24 without distinction. Therefore, the assembling property of the upstream slide member 89U and the downstream slide member 89D 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, in the above-described embodiment, the convex portion 94 is provided on each of the upstream slide member 89U and the downstream slide member 89D, and the concave portion 97 into which the convex portion 94 is fitted is provided on the movable bracket 24. . Not only this, but the recessed part 97 may be provided in each of the upstream slide member 89U and the downstream slide member 89D, and the convex part 94 may be provided in the movable bracket 24. FIG. In short, in the upstream side slide member 89U and the movable bracket 24, a convex portion 94 (first convex portion) is provided on one side, and a concave portion 97 (first concave portion) into which the convex portion 94 is fitted is provided on the other side. Just do it. Similarly, in the downstream slide member 89D and the movable bracket 24, a convex portion 94 (second convex portion) is provided on one side, and a concave portion 97 (second concave portion) into which the convex portion 94 is fitted is provided on the other side. Just do it.

  Further, the size (in particular, the dimension in the left-right direction Y1) and the number of the bent portions 91 and the sandwiching portions 95 can be arbitrarily changed within a range in which the above-described interval K is satisfied. Further, the left and right two bent portions 91 may be connected to each slide member 89 to form one bent portion 91. Further, the size and shape of the notch 93 of the slide member 89 can be arbitrarily changed. In short, at the time of the secondary collision, the peripheral portion of the slide member 89 in the notch portion 93 is a component on the side of the fixing bracket 23 (for example, the pin 61 remaining in the first through hole 66 of the fixing bracket 23 as shown in FIG. The cutout portion 93 may be configured so as not to be caught by the broken piece 61A or the like. Therefore, if not required, the notch 93 may be omitted as shown in FIG. Further, the number of convex portions 94 or concave portions 97 provided on the slide member 89 can be arbitrarily changed. As shown in FIG. 10, only one convex portion 94 may be provided at the center in the left-right direction Y1 of the main body 90. Absent.

  In the above-described embodiment, the upstream slide member 89U and the downstream slide member 89D have the same structure, but there may be some differences in dimensions. When the upstream slide member 89U and the downstream slide member 89D have different structures, only the convex portion 94 is provided on one of the upstream slide member 89U and the downstream slide member 89D, and the concave portion 97 is provided on the other. If only this is provided, it is possible to prevent erroneous assembly of the upstream slide member 89U and the downstream slide member 89D.

DESCRIPTION OF SYMBOLS 1 ... Steering device, 2 ... Steering member, 13 ... Car body side member, 23 ... Fixed bracket, 24 ... Movable bracket, 32 ... 2nd board, 41 ... Side plate, 89U ... Upstream slide member, 89D ... Downstream slide member, 90 ... body part, 94 ... convex part, 95 ... clamping part, 95 A ... one end edge, 95 B ... other end edge, 97 ... concave part, 321 ... rear end part, 322 ... front end part, K ... interval, L ... interval, M ... Maximum dimension, N ... Interval, Y1 ... Left / Right direction, Z1 ... Moving direction

Claims (3)

A fixing bracket fixed to the vehicle body,
A movable bracket that is connected to the steering member and is movable relative to the fixed bracket toward the downstream side in a predetermined movement direction along with the steering member during a secondary collision;
It is assembled to the upstream portion of the movable bracket in the moving direction, and in a state of being interposed between the upstream portion and the fixed bracket at the time of a secondary collision, it moves to the fixed bracket while moving integrally with the movable bracket. An upstream slide member for rubbing,
It is assembled to the downstream portion of the movable bracket in the moving direction, and in a state of being interposed between the downstream portion and the fixed bracket at the time of a secondary collision, it moves to the fixed bracket while moving integrally with the movable bracket. A downstream slide member that rubs,
In the upstream slide member and the movable bracket, a first convex portion is provided on one side, and a first concave portion into which the first convex portion is fitted is provided on the other side,
The downstream sliding member and the movable bracket are provided with a second convex portion on one side and a second concave portion into which the second convex portion is fitted on the other side. The movable bracket includes a plate-like portion having the upstream portion and the downstream portion, and a pair of bent portions bent in the same direction from both sides in a direction orthogonal to the moving direction in the plate-like portion,
Each of the upstream-side slide member and the downstream-side slide member is disposed between a main body portion inserted between the plate-like portion and the fixing bracket and between the pair of bent portions extending from the main body portion. And a sandwiching part that sandwiches the plate-like part between the main body part,
The maximum dimension of the main body portion in the orthogonal direction is larger than the interval between the pair of bent portions,
2. The steering device according to claim 1, wherein an interval between one end edge and the other end edge of the sandwiching portion in the orthogonal direction is equal to or less than an interval between the pair of bent portions.   The steering apparatus according to claim 1 or 2, wherein the upstream slide member and the downstream slide member have the same structure.

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