JP5146407B2 - Steering device - Google Patents

Description

  The present invention is a steering device, particularly a steering device that can adjust the telescopic position (front-rear direction position) and tilt position (tilt angle) of a steering wheel according to the physique and driving posture of the driver, and uses a friction plate. In particular, the present invention relates to a steering device including a clamp device that firmly clamps a column so that the column does not move in the front-rear direction or the tilt direction.

  In a steering device that can adjust the telescopic position and tilt position of the steering wheel, after adjusting the telescopic position and tilt position of the steering wheel, it is necessary to firmly clamp the column to the vehicle body mounting bracket so as not to move from that position. For this purpose, a clamping device using a friction plate is provided, and the washer and the friction plate are overlapped and tightened to increase the friction force when the column is clamped, so that the column is firmly clamped to the vehicle body mounting bracket.

  As a steering device provided with such a clamping device using a friction plate and a washer, there are steering devices shown in Patent Document 1 and Patent Document 2. In the steering device of Patent Document 1, a column is fastened to a vehicle body mounting bracket using a friction plate and a round washer. Since the round washer of Patent Document 1 has a smaller outer shape than the friction plate, it cannot be assembled while supporting the round washer with a finger. Therefore, if the round washer moves during assembling, it is difficult to adjust the position of the round washer with a finger, so that the assembling workability is remarkably deteriorated.

  In the steering device of Patent Document 2, a part of a disk-shaped washer is protruded radially outward to form a protrusion protruding from the outer periphery of the friction plate. Since the washer of Patent Document 2 can be assembled while supporting the protrusions with fingers, the position of the washer can be adjusted, and the assembly workability is improved as compared to the steering apparatus of Patent Document 1. However, since the protrusion has directionality, when the washer rotates, there is a problem that it interferes with surrounding parts. Further, when the finger is moved away from the washer, the assembling position of the washer is shifted, so that other work using both hands cannot be performed while the washer is assembled.

Japanese Utility Model Publication No. 2-124763 JP 2005-329840 A

  It is an object of the present invention to provide a steering device that does not shift the position of the washer assembly even when the finger is separated from the washer, and enables other operations using both hands during assembly of the washer. .

  The above problem is solved by the following means. That is, according to a first aspect of the present invention, there is provided a vehicle body mounting bracket that can be mounted on a vehicle body, and at least one of a tilt position and a telescopic position is supported by the vehicle body mounting bracket in an adjustable manner, and a steering wheel equipped with a steering wheel. A column pivotally supported by a shaft, and friction plates superimposed on each other for clamping the column to the body mounting bracket at at least one of a desired tilt position or telescopic position In a steering device having a tightening rod for tightening a column to a vehicle body mounting bracket via a washer, a long groove formed in the friction plate and formed long in a tilt position adjusting direction or a telescopic position adjusting direction is formed in the washer. The groove parallel to the longitudinal direction of the long groove It engages one side of the plate, a steering apparatus characterized by comprising an engaging protrusion for retaining the position of the washer relative to the friction plates.

  A second invention is the steering device of the first invention, wherein the washer is formed on the washer, protrudes from the other side of the friction plate parallel to the longitudinal direction of the long groove, and can be engaged with an assembly jig. A steering device comprising a protruding portion for positioning a washer with respect to the friction plate.

  According to a third invention, in the steering device according to the first or second invention, the engagement protrusion is a bent portion formed by bending the washer toward the friction plate. It is a steering device.

  According to a fourth aspect of the present invention, in the steering apparatus according to the third aspect, the bent portion is formed with inclined surfaces that are gradually separated from one side of the friction plate at both ends in the longitudinal direction of the long groove. A steering device characterized by that.

  According to a fifth aspect, in the steering device according to the third aspect, the bent portion is formed with R surfaces that are gradually separated from one side of the friction plate at both ends in the longitudinal direction of the long groove. A steering device characterized by that.

  According to a sixth aspect of the present invention, in the steering device of the first or second aspect, the engagement protrusion is a plurality of hemispherical protrusions formed by pushing the washer toward the friction plate. This is a featured steering apparatus.

  In the steering device of the present invention, the washer is formed with an engaging projection that engages with one side of the friction plate parallel to the longitudinal direction of the long groove of the friction plate and holds the position of the washer with respect to the friction plate. Therefore, the position of the washer is maintained with respect to the friction plate, and after the washer is assembled, the engaging protrusion of the washer can be visually observed from the outside, so that it is easy to confirm whether or not the washer has been assembled.

  Further, in the steering device of the present invention, a protruding portion is formed which protrudes from the other side of the friction plate parallel to the longitudinal direction of the long groove of the friction plate and can be engaged with the assembly jig and positions the washer with respect to the friction plate. Has been. Therefore, even if the finger is removed from the washer, the assembling position of the washer is not shifted, and it becomes possible to perform other work using both hands during the assembling of the washer, so that the work efficiency is improved.

It is a whole perspective view which shows the state which attached the steering device of this invention to the vehicle. It is a front view which shows the steering apparatus of Example 1 of this invention, and shows the state at the time of an assembly. FIG. 3 is a view taken in the direction of arrow P in FIG. 2. It is an AA expanded sectional view of FIG. It is a component figure which shows the washer single-piece | unit of Example 1 of this invention. (1) is an BB expanded sectional view of FIG. 3, (2) is CC sectional drawing of (1). FIG. 4 is an enlarged cross-sectional view taken along the line B-B in FIG. It is a component figure which shows the washer single-piece | unit of Example 2 of this invention. It is component drawing which shows the washer single-piece | unit of Example 3 of this invention. It is a front view which shows the steering apparatus of Example 4 of this invention, and shows the state at the time of an assembly.

  In the following embodiments, the present invention is applied to a tilt / telescopic type steering apparatus having a telescopic friction plate and capable of adjusting both the tilt position and the telescopic position in order to improve the clamping force in the telescopic direction. An example will be described.

  FIG. 1 is an overall perspective view showing a state in which a steering device of the present invention is attached to a vehicle. As shown in FIG. 1, a hollow cylindrical column 1 is attached to a vehicle body, and a steering shaft 12 is pivotally supported on the column 1 so as to be rotatable. A steering wheel 121 is attached to the steering shaft 12 at the right end (rear side of the vehicle body), and an intermediate shaft 22 is connected to the left end (front side of the vehicle body) of the steering shaft 12 via a universal joint 21.

  The intermediate shaft 22 includes a solid intermediate inner shaft 221 in which a male spline is formed and a hollow cylindrical intermediate outer shaft 222 in which a female spline is formed. The male spline of the intermediate inner shaft 221 is an intermediate outer shaft. The female spline 222 is fitted so as to be extendable (slidable) and transmit rotational torque.

  The vehicle outer side of the intermediate outer shaft 222 is connected to the universal joint 21, and the vehicle body front side of the intermediate inner shaft 221 is connected to the universal joint 23. A pinion that meshes with a rack (not shown) of the steering gear 24 is connected to the universal joint 23.

  When the driver rotates the steering wheel 121, the rotational force is transmitted to the steering gear 24 through the steering shaft 12, the universal joint 21, the intermediate shaft 22, and the universal joint 23, and the tie rod is transmitted through the rack and pinion mechanism. 25, the steering angle of the wheel can be changed.

  FIG. 2 is a front view illustrating the steering apparatus according to the first embodiment of the present invention and illustrating a state during assembly. 3 is a view taken in the direction of arrow P in FIG. 4 is an AA enlarged cross-sectional view of FIG. As shown in FIGS. 2 to 4, the steering apparatus according to the first embodiment of the present invention is upside down when assembled and when assembled to the vehicle body. The column 1 includes a hollow cylindrical outer column (upper column) 11 and an inner column (lower column) 10 that is fitted on the right side (front side of the vehicle body) of the outer column 11 so as to be slidable in the axial direction. Yes.

  A steering shaft 12 is rotatably supported on the outer column 11 and the inner column 10, and the steering wheel 121 (see FIG. 1) is fixed to the left end (rear side of the vehicle body) of the steering shaft 12.

  In the embodiment of the present invention, the outer column 11 is an integrally molded product made of aluminum die casting, but may be a steel pipe welded with a distance bracket. Further, for the purpose of weight reduction, it may be made of magnesium die casting.

  A vehicle body mounting bracket 3 is mounted on the right side (front side of the vehicle body) of the outer column 11 so as to sandwich the outer column 11 from both the left and right sides. The vehicle body mounting bracket 3 is detachably attached to the front side of the vehicle body via a capsule 41 made of aluminum alloy or the like fixed to the vehicle body (not shown).

  In the outer column 11, when a driver collides with the steering wheel 121 during a secondary collision and a large impact force is applied, the vehicle body mounting bracket 3 is detached from the capsule 41 toward the front side of the vehicle body, guided to the inner column 10, and forward of the vehicle body. It collapses to the side and absorbs impact energy at the time of collision. The vehicle body front side (right side) of the inner column 10 is supported by the vehicle body through a pivot pin (not shown) so as to be tiltable.

  As shown in FIG. 4, the vehicle body mounting bracket 3 includes an upper plate 32 and side plates 33 and 34 extending upward from the upper plate 32. A distance bracket 13 is integrally formed on the outer column 11 so as to protrude above the outer column 11 (upward in FIG. 4). The side surfaces 14 and 15 of the distance bracket 13 are slidably in contact with the inner side surfaces 331 and 341 of the side plates 33 and 34 of the vehicle body mounting bracket 3.

  In addition, ribs 181 and 182 extending in the axial direction of the outer column 11 are formed on the outer periphery of the lower portion of the side surfaces 14 and 15 of the distance bracket 13 in the outer column 11. The lateral width of the ribs 181 and 182 is set to be the same as the lateral width of the side surfaces 14 and 15. Therefore, the ribs 181 and 182 also slidably contact the inner side surfaces 331 and 341 of the side plates 33 and 34 so that the outer column 11 can be firmly tightened by the side plates 33 and 34 of the vehicle body mounting bracket 3.

  Tilt adjusting long grooves 35 and 36 are formed in the side plates 33 and 34 of the vehicle body mounting bracket 3. The distance bracket 13 is formed with telescopic adjustment long grooves 16 and 17 extending in the left-right direction in FIG. 4 and extending in the axial direction of the outer column 11.

  The round rod-shaped fastening rod 5 is inserted from the right side of FIG. 4 through the long grooves 35 and 36 for tilt adjustment and the long grooves 16 and 17 for telescopic adjustment. A cylindrical head 51 is formed at the right end of the clamping rod 5.

  Telescopic friction plates (friction plates) 64, 64 are disposed on the outer surfaces 332, 342 of the side plates 33, 34 so as to extend in the telescopic direction (left-right direction in FIG. 2). The telescopic friction plates 64, 64 are formed with telescopic adjustment long grooves (long grooves) 65 (see FIG. 2) through which the tightening rod 5 passes.

  The telescopic friction plates 64, 64 are each a single friction plate at a substantially intermediate position in the length direction, at the right end (front side of the vehicle body) in FIGS. 2 and 3, and on the left side (rear side of the vehicle body) in FIGS. It is configured to be two friction plates facing each other by bending 180 degrees to the side. The side of the side plates 33, 34 that contacts the outer surfaces 332, 342 is referred to as an inner friction plate 64A, and the side that faces the inner friction plate 64A is referred to as an outer friction plate 64B.

  The right ends of the telescopic friction plates 64 and 64 are fixed to the side surfaces 14 and 15 of the distance bracket 13 by bolts 66 and 66, respectively. Each telescopic friction plate 64, 64 has a free end on the left side, and is configured to allow a tightening shift at the time of telescopic tightening. In the embodiment of the present invention, each of the telescopic friction plates 64 and 64 is substantially composed of two sheets, but may be one sheet or three or more sheets. In the embodiment of the present invention, the telescopic friction plates 64 are arranged on both the side plate 33 side and the side plate 34 side, but either one may be used.

  The telescopic adjustment direction length of the telescopic adjustment long groove 65 of each telescopic friction plate 64, 64 is set longer than the length of the telescopic adjustment long grooves 16, 17 of the distance bracket 13 in the telescopic adjustment direction. With this setting, the outer periphery of the tightening rod 5 at the telescopic adjustment end is brought into contact with the telescopic adjustment long grooves 16 and 17 of the distance bracket 13 and stops, so that the rigidity at the stop end is felt. And the durability is improved.

  As shown in FIG. 4, a disc-shaped pressing plate 52 is fitted on the outer periphery of the right end of the tightening rod 5 between the head 51 and the outer friction plate 64 </ b> B. Further, a fixed cam 53, a movable cam 54, an operation lever 55, a thrust bearing 56, and a nut 57 are externally fitted in this order on the outer periphery of the outer friction plate 64B on the outer periphery of the left end of the tightening rod 5. A female screw (not shown) formed in the portion is screwed into a male screw 58 formed at the left end of the tightening rod 5.

  On the right outer friction plate 64B in contact with the pressing plate 52 and the left outer friction plate 64B in contact with the fixed cam 53, a detent protrusion 67 (FIGS. 2 and 3) protrudes toward the pressing plate 52 and the fixed cam 53. Reference) is formed. The anti-rotation protrusion 67 is formed along the edge of the telescopic adjustment long groove 65 of the outer friction plate 64B, and engages with a concave groove (not shown) formed in the pressing plate 52 and the fixed cam 53 to press the The plate 52 and the fixed cam 53 are prevented from rotating with respect to the telescopic friction plate 64.

  A washer 7 is sandwiched between the inner friction plate 64A and the outer friction plate 64B so as to overlap the inner friction plate 64A and the outer friction plate 64B. FIG. 5 is a component diagram showing the washer 7 alone according to the first embodiment of the present invention, where (1) is a front view of the washer 7, (2) is a plan view of (1), and (3) is a right side of (1). FIG.

  As shown in FIG. 5, the washer 7 is formed with a round hole 71 through which the tightening rod 5 passes. Further, the washer 7 is formed with a bent portion (engagement protrusion) 72 that is bent 90 degrees toward the outer friction plate 64B. When the washer 7 is sandwiched between the inner friction plate 64A and the outer friction plate 64B with the bent portion 72 facing upward from the upper side of FIGS. 2 and 4, the bent portion 72 of the washer 7 is aligned with the side of the outer friction plate 64B. 68 (upper side in FIG. 2). The side 68 is one of the sides 68 and 69 of the outer friction plate 64B parallel to the longitudinal direction of the telescopic adjustment long groove 65 (left and right direction in FIG. 2).

  Therefore, the washer 7 is restricted from rotating with respect to the outer friction plate 64B, and the vertical position of the washer 7 is held with respect to the outer friction plate 64B. In addition, since the bent portion 72 of the washer 7 can be viewed from the outside after the washer 7 is assembled, it is easy to confirm whether or not the washer 7 has been assembled.

  Further, the washer 7 is formed with a trapezoidal protruding portion 73 protruding from the other side 69 of the outer friction plate 64B. When the washer 7 is assembled, the protruding portion 73 is engaged with the trapezoidal concave portion 81 of the assembly jig 8 indicated by a two-dot chain line in FIG. 2 so that the position of the washer 7 in the horizontal direction and the vertical direction with respect to the outer friction plate 64B is set. Position. Therefore, even if the finger is separated from the washer 7, the assembly position of the washer 7 is not shifted, and other operations using both hands can be performed during the assembly of the washer 7, so that the work efficiency is improved.

  Complementary inclined cam surfaces are formed on opposite end surfaces of the fixed cam 53 and the movable cam 54 and mesh with each other. When the operation lever 55 connected to the left side surface of the movable cam 54 is operated by hand, the movable cam 54 rotates with respect to the fixed cam 53.

  When the operating lever 55 is rotated in the clamping direction, the mountain of the inclined cam surface of the movable cam 54 rides on the mountain of the inclined cam surface of the fixed cam 53 and pulls the clamping rod 5 to the left side of FIG. Push to the right in FIG.

  The telescopic friction plate 64 on the right side plate 34 side is pushed to the left by the head 51 of the tightening rod 5 and the left end surface of the pressing plate 52 to deform the side plate 34 inward, and the inner side surface 341 of the side plate 34 is changed to the distance. Press firmly against the side surface 15 and the rib 182 of the bracket 13.

  At the same time, the telescopic friction plate 64 on the left side plate 33 side is pushed rightward by the right end surface of the fixed cam 53 to deform the side plate 33 inward, and the inner side surface 331 of the side plate 33 is changed to the side surface 14 of the distance bracket 13 and the side plate 14. Press strongly against the rib 181.

  In this way, the distance bracket 13 and the ribs 181 and 182 of the outer column 11 can be tilted and telescopically tightened to the vehicle body mounting bracket 3 by a large frictional force acting between the washer 7 and the telescopic friction plate 64. it can.

  Therefore, the outer column 11 is fixed to the vehicle body mounting bracket 3, and the displacement of the outer column 11 in the tilt direction and the displacement in the telescopic direction are prevented. The outer column 11 is fastened to the vehicle body mounting bracket 3 with a large holding force in the telescopic direction by a large frictional force acting between the telescopic friction plate 64 and the outer column 11.

  Next, when the driver rotates the operation lever 55 in the tightening release direction, the side plate 33 of the vehicle body mounting bracket 3 in which the interval in the free state is set wider than the outer width of the side surfaces 14 and 15 of the distance bracket 13, 34 elastically return in the direction opposite to the clamping direction. As a result, the frictional force between the telescopic friction plates 64 and 64 is also released.

  Therefore, the outer column 11 is free with respect to the side plates 33 and 34 of the vehicle body mounting bracket 3. In this state, it is possible to arbitrarily adjust the tilt direction of the steering wheel 121 by displacing the outer column 11 in the tilt direction while guiding the tightening rod 5 in the tilt adjusting long grooves 35 and 36 of the side plates 33 and 34. it can.

  Further, the outer column 11 is displaced in the telescopic direction while guiding the telescopic adjustment long groove 65 of the telescopic friction plate 64 and the telescopic adjustment long grooves 16 and 17 of the distance bracket 13 along the tightening rod 5. Thus, the telescopic direction of the steering wheel 121 can be adjusted arbitrarily. At the time of adjusting the telescopic direction, the side 68 of the outer friction plate 64B slides along the bent portion 72 of the washer 7.

  As shown in FIGS. 2 and 5, the bent portion 72 of the washer 7 has the outer friction plate 64 </ b> B at both ends in the left-right direction in FIG. 5 (both ends in the longitudinal direction of the telescopic adjustment long groove 65 of the outer friction plate 64 </ b> B). Inclined surfaces 74 and 74 that are gradually separated from one side 68 are formed. Accordingly, the side 68 of the outer friction plate 64 </ b> B slides smoothly along the bent portion 72 of the washer 7 without being caught by the bent portion 72 of the washer 7.

  As shown in FIGS. 3 and 4, a flat plate 37 is fixed to the upper surface (upper surface in FIG. 4) 19 of the distance bracket 13 by bolts 38. The plate 37 is a component for attaching peripheral components of the steering device. 6A is an enlarged cross-sectional view taken along the line B-B in FIG. 3, and FIG. 6B is a cross-sectional view taken along the line C-C in FIG.

  As shown in FIG. 6, a relief groove 383 having a semicircular cross section is formed on the seat surface 381 of the bolt 38 around the outer diameter of the male screw portion 382. Note that the cross section of the escape groove 383 is not limited to a semicircular shape, and may be composed of another curve that gently leads to the base of the male screw portion 382. The plate 37 is a press-molded part. However, the plate 37 is not limited to this. For example, the plate 37 may be formed with bolt holes 384 by other means such as forging, forging, and cutting. The male screw portion 382 is inserted into the bolt hole 384 of the plate 37 and tightened, and the plate 37 is fixed to the distance bracket 13.

  A punching burr having a height of about 0.1 to 0.5 is generated around the bolt hole 384 punched by press molding. In the embodiment of the present invention, the punching burr can be accommodated in the escape groove 383. Therefore, since the plate 37 can be tightened with the bolt 38 without being affected by the punching burrs, it is possible to omit the deburring process for the press-molded component.

  FIG. 7 is an enlarged cross-sectional view taken along the line B-B in FIG. 3 showing a state when the punching burr around the bolt hole 384 is large. As shown in FIG. 7, even if the punching burr is larger than the depth of the escape groove 383, the punching burr is rounded along the shape of the escape groove 383. It becomes possible.

  Next, a second embodiment of the present invention will be described. FIG. 8 is a component diagram showing the washer 7 alone according to the second embodiment of the present invention. (1) is a front view of the washer 7, (2) is a plan view of (1), and (3) is a right side of (1). FIG. In the following description, only structural parts different from the above-described embodiment will be described, and redundant description will be omitted. Further, the same parts will be described with the same numbers.

  The second embodiment is an example in which R surfaces are formed at both ends of the bent portion 72 of the washer 7 instead of the inclined surfaces. That is, as shown in FIG. 8, in the second embodiment, as in the first embodiment, the washer 7 has a round hole 71 through which the tightening rod 5 passes, and a bent portion (90 degrees bent to the outer friction plate 64B side). Engagement protrusions 72 and trapezoidal protrusions 73 are formed.

  In the bent portion 72 of the washer 7, both the left and right ends in FIG. 8 (both ends in the longitudinal direction of the telescopic adjustment long groove 65 of the outer friction plate 64B) are gradually separated from one side 68 of the outer friction plate 64B. Surfaces 75 and 75 are formed. Accordingly, the side 68 of the outer friction plate 64 </ b> B slides smoothly along the bent portion 72 of the washer 7 without being caught by the bent portion 72 of the washer 7.

  Next, a third embodiment of the present invention will be described. FIG. 9 is a component diagram showing the washer 7 alone according to the third embodiment of the present invention. (1) is a front view of the washer 7, (2) is a plan view of (1), and (3) is a right side of (1). FIG. In the following description, only structural parts different from the above-described embodiment will be described, and redundant description will be omitted. Further, the same parts will be described with the same numbers.

  The third embodiment is an example in which a plurality of hemispherical protrusions are formed instead of the bent portion 72 of the washer 7. That is, as shown in FIG. 9, in the third embodiment, as in the first embodiment, the washer 7 is formed with a round hole 71 through which the tightening rod 5 passes and a trapezoidal protruding portion 73.

  The washer 7 is formed with two hemispherical protrusions (engaging protrusions) 76 and 76 formed by extrusion with a press on the outer friction plate 64B side. The hemispherical protrusions 76 are arranged apart from each other in the longitudinal direction of the telescopic adjustment long groove 65. When the washer 7 is sandwiched between the inner friction plate 64A and the outer friction plate 64B with the hemispherical projections 76, 76 facing up, the hemispherical projections 76, 76 of the washer 7 are aligned with the side 68 ( Engage with the upper side in FIG. The side 68 is one of the sides 68 and 69 of the outer friction plate 64B parallel to the longitudinal direction of the telescopic adjustment long groove 65 (left and right direction in FIG. 2).

  Therefore, the washer 7 is restricted from rotating with respect to the outer friction plate 64B, and the vertical position of the washer 7 is held with respect to the outer friction plate 64B. In addition, since the hemispherical projections 76 of the washer 7 can be viewed from the outside after the washer 7 is assembled, it is easy to confirm whether or not the washer 7 has been assembled.

  Next, a fourth embodiment of the present invention will be described. FIG. 10 is a front view showing the steering apparatus according to the fourth embodiment of the present invention and showing a state at the time of assembly. In the following description, only structural parts different from the above-described embodiment will be described, and redundant description will be omitted. Further, the same parts will be described with the same numbers.

  The fourth embodiment is an example in which the present invention is applied to a tilt-type steering device that has a friction plate for tilt and can adjust only the tilt position in order to improve the clamping force in the tilt direction. That is, as shown in FIG. 10, in the fourth embodiment, a tilt friction plate (friction plate) 61 extends in the tilt direction (vertical direction in FIG. 10) on the outer surface 332 of the side plate 33 of the vehicle body mounting bracket 3. Is located. The tilt friction plate 61 is formed with a tilt adjusting long groove (long groove) 62 through which the tightening rod 5 passes.

  The lower end of the tilting friction plate 61 in FIG. 10 is fixed to the outer surface 332 of the side plate 33 by a bolt 63. The upper side of the tilting friction plate 61 is a free end, and is configured to allow a tightening shift at the time of tilt tightening. In the embodiment of the present invention, the tilting friction plate 61 is composed of one sheet, but may be plural. In the embodiment of the present invention, the tilt friction plate 61 is disposed only on the side plate 33 side, but may be disposed on both the side plate 33 side and the 34 side.

  A washer 7 having the same shape as that of the first embodiment is sandwiched between the tilt friction plate 61 and the outer surface 332 of the side plate 33 so as to overlap the tilt friction plate 61. When the washer 7 is sandwiched between the tilt friction plate 61 and the outer surface 332 of the side plate 33 with the bent portion 72 on the left side from the left side of FIG. 10, the bent portion 72 of the washer 7 Engages with side 61A (the left side in FIG. 10). The side 61A is one of the sides 61A and 61B of the tilt friction plate 61 that is parallel to the longitudinal direction of the tilt adjusting long groove 62 (vertical direction in FIG. 10).

  Accordingly, the rotation of the washer 7 with respect to the friction plate 61 for tilting is restricted, and the position in the left-right direction with respect to the friction plate 61 for tilting is held. In addition, since the bent portion 72 of the washer 7 can be viewed from the outside after the washer 7 is assembled, it is easy to confirm whether or not the washer 7 has been assembled.

  Further, the washer 7 is formed with a trapezoidal protruding portion 73 protruding from the other side 61B of the friction plate 61 for tilting as in the first embodiment. When the washer 7 is assembled, the protruding portion 73 is engaged with the trapezoidal recess 81 of the assembly jig 8 indicated by a two-dot chain line in FIG. Positioning. Therefore, even if the finger is separated from the washer 7, the assembly position of the washer 7 is not shifted, and other operations using both hands can be performed during the assembly of the washer 7, so that the work efficiency is improved.

  In the above embodiment, the protruding portion 73 of the washer 7 is formed in a trapezoidal shape, but other shapes such as a triangle, a quadrangle, and an R shape may be used. In the above-described embodiment, an example in which the present invention is applied to a steering device having only one of a tilting friction plate or a telescopic friction plate has been described. However, in a steering device having both a tilting friction plate and a telescopic friction plate, You may apply.

  Further, in the above-described embodiment, the example in which the present invention is applied to the tilt / telescopic steering device and the tilt type steering device has been described. However, the present invention may be applied to a telescopic steering device capable of adjusting only the telescopic position.

DESCRIPTION OF SYMBOLS 1 Column 10 Inner column 11 Outer column 12 Steering shaft 121 Steering wheel 13 Distance bracket 14, 15 Side surface 16, 17 Telescopic adjustment long groove 181 and 182 Rib 19 Upper surface 21 Universal joint 22 Intermediate shaft 221 Intermediate inner shaft 222 Intermediate outer shaft 23 Freely Joint 24 Steering gear 25 Tie rod 3 Car body mounting bracket 32 Upper plate 33, 34 Side plate 331, 341 Inner side 332, 342 Outer side 35, 36 Tilt adjustment long groove 37 Plate 38 Bolt 381 Seat surface 382 Male thread 383 Escape groove 384 Bolt hole 41 Capsule 5 Clamping rod 51 Head 52 Press plate 53 Fixed cam 54 Movable cam 55 Operation lever 56 Thrust bearing 57 Nut 58 Male thread 1 Tilt Friction Plate 61A, 61B Side 62 Tilt Adjustment Long Groove 63 Bolt 64 Telescopic Friction Plate 64A Inner Friction Plate 64B Outer Friction Plate 65 Telescopic Adjustment Long Groove 66 Bolt 67 Anti-rotation Projection 68, 69 Side 7 Washer 71 Round Hole 72 Bending part 73 Projecting part 74 Inclined surface 75 R surface 76 Hemispherical protrusion 8 Assembly jig 81 Trapezoidal recess

Claims (6)

Body mounting bracket that can be mounted on the body,
At least one of a tilt position and a telescopic position is supported on the vehicle body mounting bracket in an adjustable manner, and a column that pivotally supports a steering shaft on which a steering wheel is mounted, and
Tightening the column to the body mounting bracket via a friction plate and a washer that are superimposed on each other to clamp the column to the body mounting bracket at at least one of a desired tilt position or telescopic position In a steering device provided with a rod,
A long groove formed in the friction plate and formed long in the tilt position adjustment direction or the telescopic position adjustment direction;
A steering apparatus, comprising: an engaging protrusion that is formed on the washer, engages with one side of the friction plate parallel to the longitudinal direction of the long groove, and holds the position of the washer with respect to the friction plate. The steering apparatus according to claim 1, wherein
A protruding portion formed on the washer, protruding from the other side of the friction plate parallel to the longitudinal direction of the long groove, engageable with an assembly jig, and positioning the position of the washer with respect to the friction plate; Steering device characterized. In the steering device according to claim 1 or 2,
The engagement protrusion is
A steering apparatus comprising a bent portion formed by bending the washer toward the friction plate. In the steering apparatus according to claim 3,
In the bent part,
The steering device according to claim 1, wherein inclined surfaces that are gradually separated from one side of the friction plate are formed at both ends of the long groove in the longitudinal direction. In the steering apparatus according to claim 3,
In the bent part,
A steering device characterized in that R surfaces that are gradually separated from one side of the friction plate are formed at both ends in the longitudinal direction of the long groove. In the steering device according to claim 1 or 2,
The engagement protrusion is
A steering device comprising a plurality of hemispherical protrusions formed by extruding the washer toward the friction plate.

Images