WO2012011424A1 - ステアリング装置 - Google Patents
ステアリング装置 Download PDFInfo
- Publication number
- WO2012011424A1 WO2012011424A1 PCT/JP2011/066051 JP2011066051W WO2012011424A1 WO 2012011424 A1 WO2012011424 A1 WO 2012011424A1 JP 2011066051 W JP2011066051 W JP 2011066051W WO 2012011424 A1 WO2012011424 A1 WO 2012011424A1
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- WO
- WIPO (PCT)
- Prior art keywords
- tilt
- movable
- cam
- fixed cam
- lock gear
- Prior art date
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- 230000002093 peripheral effect Effects 0.000 claims description 32
- 230000035939 shock Effects 0.000 claims 2
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 8
- 229920003002 synthetic resin Polymers 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 4
- 230000000116 mitigating effect Effects 0.000 description 4
- 229920006324 polyoxymethylene Polymers 0.000 description 4
- 239000002775 capsule Substances 0.000 description 3
- 229930182556 Polyacetal Natural products 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000037237 body shape Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/184—Mechanisms for locking columns at selected positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/187—Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment
Definitions
- the present invention relates to a steering device, and more particularly, to a tilt type that can adjust a tilt position of a steering wheel according to a driver's physique and driving posture, or a tilt / telescopic type steering device that uses a telescopic type in combination with the tilt type. .
- the tilt position adjustment mechanism is a mechanism for adjusting the tilt angle of the steering wheel to the position where it is most easy to drive according to the body shape and preference of the driver.
- the tilt clamp mechanism is once brought into an unclamped state, and in this state, the tilt angle of the steering wheel is adjusted steplessly, and then is brought into the clamped state again.
- a vehicle body mounting bracket is fixed to the vehicle body, and a tightening rod is inserted into the tilt adjusting long groove and the column of the vehicle body mounting bracket.
- the fixed cam is pressed in the axial direction by the movable cam that is rotated by the operation of the operation lever, the clamping rod is tightened, and the column is pressed against the vehicle body mounting bracket to be clamped.
- the fixed cam has a cam surface for pressing the movable cam relative to the fixed cam in the axial direction, and the fixed cam cannot rotate relative to the movable cam. Has a detent portion for sliding along. Therefore, the fixed cam has a durability for the cam surface to withstand a large clamping force, and an impact for reducing the hitting sound when the anti-rotation part comes into contact with the long groove for tilt adjustment at the adjustment end of the tilt position. Both characteristics of mitigation ability are required.
- the fixed cam of the steering device of Patent Document 1 is described above by integrally connecting two parts, a cam member having a cam surface formed of a high-hardness material, and a detent member formed of synthetic resin. It has both characteristics.
- a tilt is provided by providing a fixed tilt lock gear on the vehicle body mounting bracket side and inserting a movable tilt lock gear meshing with the fixed tilt lock gear through the tightening rod. There is a locking mechanism.
- the tightening rod is tightened and the movable tilt lock gear meshes with the fixed tilt lock gear to improve the holding force in the tilt direction, and the impact load due to the secondary collision acts on the steering wheel.
- the column is prevented from moving in the tilt direction.
- the movable tilt lock gear is externally fitted to the fixed cam so as to be movable in the tilt direction, and the spring is fixed to the fixed cam. It is necessary to elastically support the movement of the movable tilt lock gear in the tilt direction so that the meshing position of the movable tilt lock gear and the fixed tilt lock gear has a degree of freedom.
- the present invention facilitates the assembly of a tilt lock mechanism that elastically supports the movement of the movable tilt lock gear in the tilt direction with respect to the fixed cam by a spring, and has both durability and impact mitigation characteristics. It is an object of the present invention to provide a steering apparatus having the following.
- the first invention is a vehicle body mounting bracket that can be mounted on a vehicle body, a column that is supported by the vehicle body mounting bracket so that a tilt position can be adjusted, and a steering shaft on which a steering wheel is mounted is pivotally supported.
- a tilt adjusting long groove formed in the vehicle body mounting bracket, a tightening rod inserted through the column, and one end of the tightening rod are supported.
- a fixed cam that presses one side surface of the vehicle body mounting bracket against the column, a movable cam that is supported at one end of the clamping rod so as to face the fixed cam and rotate together with the operation lever, and the fixed cam and the movable cam that face each other
- the movable cams are axially arranged relative to the fixed cams.
- the cam surface is pressed against the movable cam, and is formed on the fixed cam to make the fixed cam non-rotatable with respect to the movable cam.
- the tilt adjustment is performed when adjusting the tilt position of the column.
- An anti-rotation portion slidable along the long groove, a fixed tilt lock gear formed on one side of the vehicle body mounting bracket, and the fixed tilt lock gear rotating in synchronization with the rotation of the operation lever.
- a movable tilt lock gear that is externally fitted so as to be movable in the tilt direction with respect to the fixed cam, and a movable tilt lock gear that is inserted between the movable tilt lock gear and the fixed cam.
- the step is provided with a spring that elastically supports movement in the tilt direction, a fixed cam, a movable tilt lock gear, and a tilt stopper that integrally holds the spring.
- a ring device that is externally fitted so as to be movable in the tilt direction with respect to the fixed cam, and a movable tilt lock gear that is inserted between the movable tilt lock gear and the fixed cam.
- the tilt stopper is fitted into the long groove for tilt adjustment and slides along the long groove for tilt adjustment when adjusting the tilt position of the column.
- a steering apparatus characterized by being capable of reducing impact by abutting against an end of a tilt adjusting long groove at a tilt adjusting end.
- the tilt stopper is fitted in the long groove for tilt adjustment, and slides along the long groove for tilt adjustment when adjusting the tilt position of the column. And a space portion that is formed in the vicinity of the end face in the tilt adjustment direction of the flange portion and that reduces the impact when the flange portion comes into contact with the tilt adjustment end of the long groove for tilt adjustment. Is a steering device.
- the tilt stopper is formed integrally with the flange portion and is fitted into a through hole formed in the shaft center of the fixed cam. And an engagement projection formed at an end of the cylindrical portion, protruding radially outward from the outer peripheral surface of the cylindrical portion, and engageable with an end surface on the cam surface side of the fixed cam, and the cylindrical portion And a through hole through which the tightening rod is inserted, and the fixed cam, the movable tilt lock gear, and the spring are sandwiched between the end surface of the flange portion and the engaging protrusion so as to be integrated.
- a steering device characterized by holding.
- a fifth invention is the steering device according to the first invention, wherein the tilt stopper is formed in a line-symmetric shape with a straight line passing through the center of the tilt stopper as a symmetry axis. .
- the steering device has a fixed tilt lock gear formed on one side surface of the vehicle body mounting bracket, and rotates in synchronization with the rotation operation of the operation lever, and can mesh with the fixed tilt lock gear.
- a movable tilt lock gear that is externally fitted so as to be movable in the tilt direction, and is interposed between the movable tilt lock gear and the fixed cam, and elastically supports the movement of the movable tilt lock gear relative to the fixed cam in the tilt direction.
- a tilt cam that holds the spring integrally.
- the tilt stopper is fitted in the tilt adjustment long groove and can slide along the tilt adjustment long groove when adjusting the tilt position of the column. The tilt adjustment end abuts the end of the tilt adjustment long groove. Reduce the impact.
- the fixed cam, the movable tilt lock gear, and the spring can be integrally held by the tilt stopper, they can be handled as one component, and the assembly time can be shortened. Further, since the tilt stopper and the fixed cam are configured as separate parts, it is easy to provide both characteristics of durability and impact mitigation ability.
- FIG. 6 is an exploded perspective view in which a vehicle body mounting bracket is omitted from FIG. 5.
- FIG. 1 The state in which the movable tilt lock gear, the fixed cam, and the wire spring are integrally assembled with the tilt stopper is shown.
- A is a perspective view seen from the inclined cam surface side of the fixed cam, and (b) is from the back side of (a).
- FIG. The state in which the movable tilt lock gear, the fixed cam, and the wire spring are integrally assembled with the tilt stopper is shown, (a) is a front view, (b) is a cross-sectional view taken along the line AA in (a), and (c) is (a) ) Is a cross-sectional view taken along the line BB of FIG.
- FIG. 7A is a perspective view showing a state where the fixed cam, the wire spring, and the tilt stopper are removed from FIG. 7A
- FIG. 7B is a state where the fixed cam, the wire spring, and the tilt stopper are removed from FIG. It is a perspective view shown.
- the engagement state of a fixed cam and a wire spring is shown, (a) a perspective view seen from the inclined cam surface side of the fixed cam, (b) a perspective view seen from the detent portion side of the fixed cam, and (c) fixed. It is the front view seen from the detent part side of the cam.
- FIG. 1 It is the perspective view which shows the tilt stopper single-piece
- FIG. 1 It is a component diagram which shows the 1st buffer member single-piece
- FIG. 5 is a front view of the vicinity of the operation lever showing a state where the operation column is rotated clockwise and the outer column is unclamped to the vehicle body mounting bracket. It is a front view of the vicinity of the operation lever showing a state in which the operation lever is turned counterclockwise and the outer column is clamped to the vehicle body mounting bracket.
- FIG. 1 is an overall perspective view showing a state in which a steering device 101 of the present invention is attached to a vehicle.
- the steering device 101 pivotally supports a steering shaft 102 so as to be rotatable.
- a steering wheel 103 is attached to the upper end (rear side of the vehicle body) of the steering shaft 102, and an intermediate shaft 105 is connected to the lower end of the steering shaft 102 (front side of the vehicle body) via a universal joint 104.
- a universal joint 106 is connected to the lower end of the intermediate shaft 105, and a steering gear 107 including a rack and pinion mechanism is connected to the universal joint 106.
- FIG. 2 is a perspective view of a main part of the steering device 101 according to the embodiment of the present invention as viewed from the upper left side behind the vehicle body.
- FIG. 3 is a perspective view of a main part of the steering device 101 according to the embodiment of the present invention as viewed from the lower right side behind the vehicle body.
- 4 is an exploded perspective view of the periphery of the vehicle body mounting bracket as viewed from the upper left side behind the vehicle body
- FIG. 5 is an exploded perspective view of the periphery of the vehicle body mounting bracket as viewed from the lower right side of the vehicle body
- FIG. It is the disassembled perspective view which abbreviate
- the steering device 101 includes a vehicle body mounting bracket 2, an inner column (lower column) 31, a steering assist unit 32 (electric assist mechanism), and an outer column (upper column). 34 or the like.
- the rear end of the vehicle body of the steering assist portion (electric assist mechanism) 32 is fixed by press-fitting to the front side of the vehicle body of the inner column 31 (left side in FIG. 2).
- the steering assist unit 32 includes an electric motor 321, a reduction gear box unit 322, an output shaft 323, and the like.
- a bracket 33 formed integrally with the front end of the vehicle body of the steering assist section 32 is supported by a vehicle body (not shown) so that the tilt position can be adjusted via a tilt center axis (not shown).
- the outer peripheral surface of the inner column 31 is externally fitted so that the inner peripheral surface of the outer column 34 can be telescopically adjusted (sliding parallel to the central axis of the inner column 31).
- An upper steering shaft 102A is pivotally supported on the outer column 34, and a steering wheel 103 (see FIG. 1) is fixed to the rear side (right side in FIG. 2) end of the upper steering shaft 102A. Yes.
- a slit (not shown) penetrating from the outer peripheral surface of the outer column 34 to the inner peripheral surface is formed on the vehicle body lower side of the outer column 34.
- the slit has a shape in which the vehicle body front end side of the outer column 34 is opened and the vehicle body rear end side is closed.
- a lower steering shaft (not shown) is pivotally supported on the inner column 31 and the lower steering shaft is spline-fitted with the upper steering shaft 102A. Accordingly, regardless of the telescopic position of the outer column 34, the rotation of the upper steering shaft 102A is transmitted to the lower steering shaft.
- the steering assist unit 32 detects torque acting on the lower steering shaft, drives the electric motor 321, and rotates the output shaft 323 with a required steering assist force.
- the rotation of the output shaft 323 is transmitted to the steering gear 107 via the universal joint 104, the intermediate shaft 105, and the universal joint 106, and the steering angle of the wheel can be changed while assisting the steering force.
- the vehicle body mounting bracket 2 is mounted to clamp the outer column 34 from both the left and right sides in the vehicle width direction.
- the vehicle body mounting bracket 2 is made of metal and has an upper plate 23 formed substantially horizontally in the vehicle width direction, and extends from the upper plate 23 to the vehicle body lower side. It has a pair of left and right side plates 24, 25 sandwiched from both left and right sides in the width direction.
- Notch grooves are formed on the left and right sides of the upper plate 23 in the vehicle width direction (formed by opening the rear side of the vehicle body), and the upper plate 23 is inserted into the upper plate 23 via capsules 22 and 22 fitted in the notch grooves. A plate 23 is attached to the vehicle body.
- the vehicle body mounting bracket 2 When a driver collides with the steering wheel 103 during a secondary collision and a large impact force acts, the vehicle body mounting bracket 2 is detached from the capsule 22 toward the front side of the vehicle body, and the vehicle body mounting bracket 2 and the outer column 34 are moved to the inner column 31. It is guided and moves to the front side of the vehicle to absorb the impact energy at the time of collision.
- a pair of clamp members are integrally formed on the vehicle body front side of the outer column 34 so as to protrude outward from the outer column 34 in the vehicle width direction.
- the clamp member is formed with a telescopic adjustment long groove (not shown) that extends long in the axial direction of the outer column 34.
- tilt adjustment long grooves 26 and 27 are formed in the side plates 24 and 25 of the vehicle body mounting bracket 2.
- the tilt adjusting long grooves 26 and 27 are formed in an arc shape centered on the tilt central axis.
- the outer side surface of the clamp member of the outer column 34 is slidably in contact with the inner side surfaces 242 and 252 of the side plates 24 and 25 of the vehicle body mounting bracket 2.
- a round rod-shaped fastening rod 41 is inserted from the right side of FIGS. 4 and 6 through the tilt adjusting long grooves 26 and 27 and the telescopic adjusting long grooves.
- a tilt stopper 48 is externally fitted to the clamping rod 41, and the left end of the clamping rod 41 is passed through the right tilt adjusting long groove 27, the right telescopic adjusting long groove, the left telescopic adjusting long groove, and the left tilt adjusting long groove 26. .
- the tilt stopper 5 the movable tilt lock gear 6, the wire spring (spring) 69, the fixed cam 8, the movable cam 42, the operation lever 43, the collar 44, and the thrust bearing 45.
- the nut 46 is fastened and fixed to the left end of the fastening rod 41.
- the fixed cam 8 and the movable cam 42 are formed of a sintered material, subjected to heat treatment, and have high hardness, so that they have durability to withstand a large clamping force.
- a rectangular detent 412 is formed in the disc-shaped head 411 at the right end of the tightening rod 41.
- the rotation preventing portion 412 is fitted into the right tilt adjusting long groove 27, and the tightening rod 41 is prevented from rotating with respect to the side plate 25.
- the right tilt stopper 48 is made of synthetic resin, has a substantially rectangular shape that is long in the tilt direction, and has a two-surface width that is substantially the same as the groove width of the tilt adjusting long groove 27.
- the right tilt stopper 48 is fitted in the tilt adjustment long groove 27 and smoothly slides in the tilt adjustment direction when the tilt position of the outer column 34 is adjusted, and the end of the tilt adjustment long groove 27 is at the tilt adjustment end. Attenuates the impact by abutting against the part.
- the movable cam 42 is press-fitted into the operation lever 43 and rotates integrally with the operation lever 43.
- the operation lever 43 is formed of a synthetic resin having excellent mechanical properties such as polyacetal (POM) and having a small wear and friction coefficient.
- a rib 243 is formed at the vehicle body rear end of the left side plate 24 and is bent at a right angle from the side plate 24 toward the outside in the vehicle width direction.
- the rib 243 is formed in the vicinity of the tilt adjusting long groove 26 along the tilt adjusting long groove 26.
- the upper end of the vehicle body of the rib 243 is fixed to the upper plate 23 of the vehicle body mounting bracket 2 by welding.
- the lower end of the vehicle body of the rib 243 is formed up to the upper end of the fixed tilt lock gear 47, which will be described later, but it may be formed extending to the lower end of the fixed tilt lock gear 47. Therefore, the rib 243 increases the rigidity of the side plate 24 in the vicinity of the tilt adjusting long groove 26, and the side plate 24 is elastically deformed when the operation lever 43 is rotated in order to clamp the outer column 34 to the vehicle body mounting bracket 2. It is suppressed.
- the upper end of the vehicle body of the right side plate 25 is fixed by welding the front side of the vehicle body to the upper plate 23 of the vehicle body mounting bracket 2. Further, a gap 253 is formed between the vehicle body mounting bracket 2 and the upper plate 23 on the vehicle body rear side at the vehicle body upper end of the side plate 25. Therefore, the rigidity of the side plate 25 in the vicinity of the tilt adjusting long groove 27 is reduced by the gap 253, and the side plate 25 is elastically deformed when the operation lever 43 is rotated to clamp the outer column 34 to the vehicle body mounting bracket 2. It becomes easy.
- FIG. 7 shows a state in which the movable tilt lock gear 6, the fixed cam 8, and the wire spring 69 are integrally assembled with the tilt stopper 5.
- FIG. 7A is a perspective view of the fixed cam 8 as seen from the inclined cam surface side.
- (B) is the perspective view seen from the back side of (a).
- 8 shows a state in which the movable tilt lock gear 6, the fixed cam 8, and the wire spring 69 are integrally assembled by the tilt stopper 5
- FIG. 8 (a) is a front view
- FIG. 8 (b) is FIG. 8 (a).
- FIG. 8C is a sectional view taken along the line BB in FIG. 8A
- FIG. 8D is a sectional view taken along the arrow P in FIG. 8A
- FIG. 9A is a view taken in the direction of the arrow Q in FIG. 8B
- FIG. 9B is a front view showing a state where the tilt stopper is removed from FIG. 9A.
- FIG. 10A is a perspective view showing a state in which the fixed cam 8, the wire spring 69, and the tilt stopper 5 are removed from FIG. 7A
- FIG. 10B is the fixed cam 8
- 69 is a perspective view showing a state in which the tilt stopper 5 is removed.
- 11 shows the engagement state of the fixed cam 8 and the wire spring 69
- FIG. 11A is a perspective view seen from the inclined cam surface side of the fixed cam 8
- FIG. FIG. 11C is a front view of the fixed cam 8 viewed from the detent portion side.
- the movable tilt lock gear 6 is made of metal and is elongated in the vertical direction of the vehicle body, and gears 61 are formed on both sides of the movable tilt lock gear 6 in the vehicle width direction on the lower side of the vehicle body.
- the gear 61 is long and tapered in the left-right direction in FIG. 8A, and a plurality of gears 61 are formed in the vertical direction of the vehicle body.
- a fixed tilt lock gear 47 is fixed to the outer side surface 241 of the left side plate 24 with bolts 477.
- the fixed tilt lock gear 47 is bent in a U-shape and opened on the front side of the vehicle body, and a plurality of gears (see FIG. 19B) 471 are formed in the vehicle body vertical direction on both inner side surfaces in the vehicle width direction. Yes.
- a protrusion 62 is formed on the outer surface of the movable tilt lock gear 6 in the vehicle width direction, and the protrusion 62 is engaged with a recess 431 (see FIG. 6) formed in the operation lever 43. Accordingly, the movable tilt lock gear 6 rotates in synchronization with the rotation operation of the operation lever 43.
- the operation lever 43 is rotated counterclockwise in order to clamp the outer column 34 to the vehicle body mounting bracket 2, the movable tilt lock gear 6 is also rotated counterclockwise, and the gear 61 of the movable tilt lock gear 6 is rotated.
- meshing with the gear 471 of the fixed tilt lock gear 47 strengthens the holding force in the tilt direction.
- a through hole 63 parallel to the axis of the tightening rod 41 is formed on the upper side of the vehicle body, and a cylindrical fixed cam 8 is fitted in the through hole 63.
- the inner diameter of the through-hole 63 is formed so that the vehicle body vertical direction (vertical direction in FIG. 8A) is large and the vehicle body longitudinal direction (horizontal direction in FIG. 8A) is small.
- the clearance between the large-diameter outer peripheral surface of the fixed cam 8 (the outer peripheral surface of the fixed cam 8 on the inclined cam surface 85 side) 87 and the through-hole 63 is greater than the vertical clearances ⁇ 1 and ⁇ 2 in the vehicle body.
- the gaps ⁇ 1 and ⁇ 2 are formed larger than the longitudinal gaps ⁇ 1 and ⁇ 2, and ⁇ 1 + ⁇ 2> ⁇ 1 + ⁇ 2.
- the movable tilt lock gear 6 can move relative to the fixed cam 8 by this gap.
- the wire spring 69 is assembled to the movable tilt lock gear 6 before the fixed cam 8 is fitted into the movable tilt lock gear 6. As shown in FIG. 11, the wire spring 69 is formed by bending one line, and a pair of parallel linear arm portions 691 and 691 and bent portions 692 formed at both ends of the arm portions 691 and 691. 693, and a U-shaped connecting portion 694 that connects one of the bent portions 693 and 693.
- the arm portions 691 and 691 and the bent portions 692 and 693 of the wire spring 69 are inserted into the through holes 63 of the movable tilt lock gear 6 as shown in FIGS. Hook the connecting portion 694 to 64.
- the engaging protrusion 64 is formed on the end surface 67 of the movable tilt lock gear 6 on the movable cam 42 side.
- one of the bent portions 692 and 692 engages with the engaging recesses 65 and 65 formed in the through hole 63
- the other bent portion 693 and 693 engages with the engaging recesses 66 and 66.
- the wire spring 69 is prevented from moving in a plane parallel to the paper surface of FIG. 8A and in a direction perpendicular to the paper surface of FIG. 8A with respect to the movable tilt lock gear 6. Attached.
- the fixed cam 8 is fitted into the through hole 63 of the movable tilt lock gear 6.
- the arm portions 691 and 691 of the wire spring 69 are elastically deformed with the bent portions 692 and 693 serving as fulcrums, and the cylindrical and small-diameter outer peripheral surface of the fixed cam 8 (the outer periphery of the fixed cam 8 on the detent portion 86 side).
- Surface) 81 is sandwiched between arm portions 691 and 691.
- An inclined surface 82 (see FIG. 11B) is formed on the outer peripheral surface 81 of the fixed cam 8.
- the inclined surfaces 82 are formed at two positions opposite to the outer peripheral surface 81 at 180 degrees, and when the fixed cam 8 is fitted into the through hole 63, the outer peripheral surface 81 of the fixed cam 8 is smoothly interposed between the arm portions 691 and 691. invite.
- a flat surface 83 (see FIG. 11B) is formed on the outer peripheral surface 81 of the fixed cam 8.
- the flat surface 83 is formed at two positions on the outer peripheral surface 81 facing each other by 180 degrees, and makes it easy to match the phase of the fixed cam 8 with respect to the movable tilt lock gear 6 when the fixed cam 8 is fitted into the through hole 63.
- arc-shaped portions 695 and 695 are formed at intermediate positions in the length direction of the arm portions 691 and 691, respectively.
- the radius of curvature of the arcuate portion 695 is formed to be the same as the radius of curvature of the outer peripheral surface 81 of the fixed cam 8. Accordingly, the center of the through hole 63 of the movable tilt lock gear 6 is held at the center of the fixed cam 8 by the urging force of the arm portions 691 and 691.
- one end surface of the fixed cam 8 (the end surface facing the movable cam 42 when the fixed cam 8 is assembled to the tightening rod 41) is engaged with the inclined cam surface of the movable cam 42.
- An inclined cam surface 85 is formed.
- the other end face of the fixed cam 8 (the end face facing the side plate 24 of the vehicle body mounting bracket 2 when the fixed cam 8 is assembled to the tightening rod 41) is provided on the other end face.
- a rotation stopper 86 is formed.
- the anti-rotation portion 86 is formed with flat surfaces 861 and 861 formed to have a two-sided width slightly narrower than the groove width of the tilt adjusting long groove 26. Accordingly, the flat surfaces 861 and 861 are fitted into the long slot 26 for tilt adjustment, and the fixed cam 8 is prevented from rotating with respect to the side plate 24 and can be slid in the tilt adjusting direction while being guided by the long groove 26 for tilt adjustment. It is. Further, arcuate surfaces 862 and 862 are formed on the end surface of the rotation preventing portion 86 in the tilt adjustment direction (vertical direction in FIG. 11C).
- the fixed cam 8 is formed in a line-symmetric shape with a straight line 89 passing through the center of the fixed cam 8 as the axis of symmetry, so even if the phase is changed by 180 degrees. It has a structure that can be assembled.
- the movable cam 42 is also formed in a line-symmetric shape with a straight line passing through the center of the movable cam 42 as a symmetry axis, and can be assembled even if the phase is changed by 180 degrees.
- FIG. 8B the tilt stopper 5 is inserted into a through hole 84 formed in the axial center of the fixed cam 8, and the tilt stopper 5, the movable tilt lock gear 6, the wire spring 69, and the fixed cam are inserted.
- FIG. 12 is a perspective view showing the tilt stopper 5 alone
- FIG. 12 (a) is a perspective view of the tilt stopper 5 seen from the engaging projection side
- FIG. 12 (b) is a perspective view of the tilt stopper 5 seen from the flange portion side.
- FIG. 13 is a component diagram showing the tilt stopper 5 alone
- FIG. 13 (a) is a front view of the tilt stopper 5
- FIG. 13 (b) is a left side view of FIG. 13 (a)
- FIG. 13 (a) is a right side view
- FIG. 13 (d) is a plan view of FIG. 13 (a).
- the tilt stopper 5 is made of synthetic resin, and is formed integrally with the hollow cylindrical tubular portion 51 and one end of the tubular portion 51 (the left end in FIG. 13A). It is constituted by a rectangular thin plate-like flange portion 52. A through-hole 53 through which the tightening rod 41 is inserted is formed in the tubular portion 51 and the flange portion 52, and slits 54 and 54 that communicate with the through-hole 53 from the outer peripheral surface of the tubular portion 51 are formed.
- Engagement projections 55, 55 projecting radially outward from the outer peripheral surface of the cylindrical part 51 are formed at the other end of the cylindrical part 51 (the right end in FIG. 13A).
- the engaging protrusions 55, 55 are formed with inclined surfaces 551, 551 on the other end side of the cylindrical portion 51, and the one end side of the cylindrical portion 51 is orthogonal to the axis of the cylindrical portion 51. Stop surfaces 552 and 552 are formed.
- the inclined surface 551 is inclined in a direction approaching the axis of the cylindrical portion 51 as it goes to the other end side of the cylindrical portion 51.
- the flange portion 52 is formed with flat surfaces 521 and 521 that project outward from the outer peripheral surface of the cylindrical portion 51 and are formed to have a two-sided width slightly narrower than the groove width of the tilt adjusting long groove 26. Accordingly, the flat surfaces 521 and 521 of the flange portion 52 are fitted in the tilt adjusting long groove 26 and can slide in the tilt adjusting direction.
- the widths of the flat surfaces 521 and 521 of the flange portion 52 are slightly narrower than the widths of the flat surfaces 861 and 861 of the fixed cam 8 (see FIG. 9A).
- arc surfaces 522 and 522 are formed on the end face of the flange portion 52 in the tilt adjustment direction (the vertical direction in FIGS. 13B and 13C). These arcuate surfaces 522 and 522 are at the tilt adjustment end and come into contact with the end of the tilt adjustment long groove 26 to alleviate the impact sound. Further, arc-shaped grooves (space portions) 56 and 56 are formed at the end portion of the flange portion 52 in the tilt adjustment direction on the left end surface (left end in FIG. 13A) 524 of the flange portion 52, and the arc surface. 522 and 522 are easily elastically deformed. Therefore, when the circular arc surfaces 522 and 522 come into contact with the end of the tilt adjustment long groove 26 at the tilt adjustment end, the circular arc surfaces 522 and 522 are elastically deformed, and the impact at the tilt adjustment end can be reduced.
- arc-shaped concave surfaces 57 and 57 are formed on the right end surface (the right end in FIG. 13A) 523 of the flange portion 52.
- the curvature radii of the arc-shaped concave surfaces 57 and 57 are formed slightly larger than the curvature radii of the arc surfaces 862 and 862 of the fixed cam 8 described above. Since the tilt stopper 5 is formed in a line-symmetric shape with a straight line 58 (see FIGS. 13B and 13C) 58 passing through the center of the tilt stopper 5 as a symmetry axis, the tilt stopper 5 is assembled even if the phase is changed by 180 degrees. Has a possible structure.
- the cylindrical portion 51 of the tilt stopper 5 is inserted into a through hole 84 formed in the axial center of the fixed cam 8. Then, the inclined surface 551 of the engagement protrusion 55 of the tilt stopper 5 comes into contact with the through hole 84 and the cylindrical portion 51 is reduced in diameter, so that the cylindrical portion 51 can be smoothly inserted into the through hole 84.
- the cylindrical portion 51 of the tilt stopper 5 When the cylindrical portion 51 of the tilt stopper 5 has been inserted into the through hole 84, the cylindrical portion 51 is expanded in diameter, and the locking surface 552 of the engaging protrusion 55 is located on the end surface of the fixed cam 8 on the inclined cam surface 85 side. Engage. Further, the arcuate concave surfaces 57 and 57 of the tilt stopper 5 are fitted on the arcuate surfaces 862 and 862 of the fixed cam 8. Further, the right end surface 523 (see FIG. 8B) of the flange portion 52 of the tilt stopper 5 abuts on the end surface (side plate 24 side) 68 of the movable tilt lock gear 6.
- the movable tilt lock gear 6, the wire spring 69, and the fixed cam 8 are integrated by the tilt stopper 5, and it is possible to prevent the four parts from being separated during the transportation. Can be shortened. Further, since the positions of the four components in the axial direction do not shift, the axial positions of the wire spring 69 and the fixed cam 8 can be held at fixed positions. As a result, the center of the through hole 63 of the movable tilt lock gear 6 can be stably held at the center of the fixed cam 8 by the elastic force of the wire spring 69. In addition, since the tilt stopper 5 and the fixed cam 8 are configured as separate parts, it is easy to provide characteristics of both durability and impact mitigation ability.
- the assembled component composed of the four components that is, the tilt stopper 5, the movable tilt lock gear 6, the wire spring 69, and the fixed cam 8, which have been assembled, is held by hand, and the detent portion 86 of the fixed cam 8.
- These flat surfaces 861 and 861 are fitted into the long slot 26 for tilt adjustment of the side plate 24 of the vehicle body mounting bracket 2.
- the round rod-shaped fastening rod 41 fitted with the tilt stopper 48 is passed through the tilt adjusting long groove 27, the right telescopic adjusting long groove, the left telescopic adjusting long groove, and the tilt adjusting long groove 26.
- the left end of the tightening rod 41 is inserted into the through hole 53 of the tilt stopper 5 which is an assembled product composed of four parts.
- the movable cam 42, the operation lever 43, the collar 44, and the thrust bearing 45 are externally fitted to the left end of the clamping rod 41 and the nut 46 is tightened and fixed to the left end of the clamping rod 41, the assembly of the tilt clamp mechanism is completed. .
- the engagement protrusion 55 can be more securely locked.
- the operation lever 43 is turned counterclockwise. Then, the fixed cam 8 does not rotate because the planes 861 and 861 of the rotation preventing portion 86 of the fixed cam 8 are fitted in the tilt adjusting long groove 26 and the rotation is restricted, and the inclined cam surface 85 of the fixed cam 8 does not rotate.
- a mountain on the inclined cam surface of the movable cam 42 rides on this mountain. Therefore, the end surface (see FIGS. 8C and 11B) 88 of the fixed cam 8 on the side of the rotation stopper 86 pushes the outer surface 241 of the left side plate 24 inward.
- the left side plate 24 has a large rigidity in the vicinity of the tilt adjusting long groove 26 by the rib 243, elastic deformation is suppressed.
- the clamping rod 41 is pulled to the left side in FIG. 4, and the disc-shaped head 411 is moved to the outer side surface 251 of the right side plate 25. Press inward.
- the right side plate 25 is formed with a small rigidity in the vicinity of the tilt adjusting long groove 27 by the gap 253, so that the right side plate 25 is elastically deformed greatly inward, and the inner side surface 252 of the right side plate 25. Strongly presses the outer surface of the right clamp member of the outer column 34. As a result, the outer side surfaces of the left and right clamp members of the outer column 34 are strongly held between the inner side surface 242 of the left side plate 24 and the inner side surface 252 of the right side plate 25.
- the left and right clamp members of the outer column 34 can be clamped to the vehicle body mounting bracket 2 with a large holding force at a predetermined tilt adjustment position. Since the tilt clamp mechanism of the present invention directly clamps the side plates 24 and 25 without using an elastic member, it is possible to increase the rigidity during tilt clamp. Further, the clamp member is elastically deformed inward in a direction in which the inner side surfaces of the clamp member approach each other, and the width of the slit of the outer column 34 is narrowed. Accordingly, the inner peripheral surface of the outer column 34 is reduced in diameter, and the outer peripheral surface of the inner column 31 is tightened and clamped (telescopic clamp).
- FIG. 14 is a perspective view showing the first buffer member 71 alone
- FIG. 14A is a perspective view of the first buffer member 71 viewed from the sliding contact surface side
- FIG. 14B is the first buffer member. It is the perspective view which looked at this buffer member 71 from the back side of the sliding contact surface.
- FIG. 15 is a component diagram showing the first buffer member 71 alone
- FIG. 15 (a) is a front view of the first buffer member 71
- FIG. 15 (b) is a plan view of FIG. 15 (a)
- FIG. (C) is a right side view of FIG. 15 (a)
- FIG. 15 (d) is a right side view of FIG. 15 (c).
- FIG. 16 is a perspective view showing the second buffer member 72 alone
- FIG. 16 (a) is a perspective view of the second buffer member 72 seen from the sliding contact surface side
- FIG. 16 (b) is the second buffer member. It is the perspective view which looked at the member 72 from the back side of the sliding contact surface.
- 17 is a component diagram showing the second shock-absorbing member 72 alone
- FIG. 17 (a) is a front view of the second shock-absorbing member 72
- FIG. 17 (b) is a plan view of FIG. 17 (a)
- FIG. 17C is a right side view of FIG. 17A
- FIG. 17D is a bottom view of FIG. 17A
- FIG. 17E is a right side view of FIG.
- the first buffer member 71 shown in FIGS. 14 to 15 and the second buffer member 72 shown in FIGS. 16 to 17 have the tilt stopper 5 of the movable tilt lock gear 6 as shown in FIGS. It is attached to the end face 68 on the side.
- the second buffer member 72 is attached to the upper half of the periphery of the through hole 63 on the vehicle body upper side of the movable tilt lock gear 6.
- the first buffer member 71 is attached to the vicinity of the gear 61 on the lower side of the vehicle body of the movable tilt lock gear 6.
- the first buffer member 71 and the second buffer member 72 are made of a synthetic resin that has excellent mechanical properties such as polyacetal (POM) and has low wear and friction coefficients.
- POM polyacetal
- the first buffer member 71 has sliding contact surfaces 711 and 712 formed on the same plane, and a bending portion 713 that is bent at a right angle from the sliding contact surface 711 is formed on the sliding contact surface 711. .
- a bent portion 714 that is bent at a right angle from the sliding contact surfaces 711 and 712 is formed between the sliding contact surfaces 711 and 712, and the front end of the bent portion 714 is bent at a right angle from the bent portion 714 to be slid.
- a bent portion 715 parallel to the contact surfaces 711 and 712 is formed.
- a contact surface 716 bent at a right angle from the slide contact surface 712 is formed on the slide contact surface 712, and the tip of the contact surface 716 is bent at a right angle from the contact surface 716 and parallel to the slide contact surface 712.
- a bent portion 717 is formed.
- the first buffer member 71 presses the back surfaces 711A and 712A of the sliding contact surfaces 711 and 712 against the end surface 68 on the tilt stopper 5 side of the movable tilt lock gear 6 and the bent portions 713, 714 and 715 to the movable tilt lock gear 6. Engage with. Further, the contact surface 716 is pressed against the protrusion 62 of the movable tilt lock gear 6, and the bent portion 717 is engaged with the end surface 621 of the protrusion 62. As a result, the first buffer member 71 moves with respect to the movable tilt lock gear 6 in a plane parallel to the paper surface of FIG. 8A and in a direction orthogonal to the paper surface of FIG. Movement is blocked and installed.
- the slidable contact surfaces 711 and 712 of the first buffer member 71 are side plates 24 of the vehicle body mounting bracket 2 by the thickness T1 of the first buffer member 71 from the end surface 68 (slidable contact surface) of the movable tilt lock gear 6. It protrudes to the outer surface 241 side.
- the second buffer member 72 has a semicircular slidable contact surface 721, and the slidable contact surface 721 is formed with a bent portion 722 that is bent at a right angle from the outer edge of the slidable contact surface 721. Further, linear sliding contact surfaces 723 and 724 extending from the lower end of the semicircular sliding contact surface 721 toward the center are provided at the lower end of the semicircular sliding contact surface 721 (the lower end in FIG. 17E). Is formed. Bending portions 725 and 726 that are bent at right angles from the sliding contact surfaces 723 and 724 are formed at the tips of the sliding contact surfaces 723 and 724.
- Cylindrical convex portions 727 and 728 are formed on the back surfaces 723A and 724A of the sliding surfaces 723 and 724, respectively.
- the height H of the convex portions 727 and 728 (see FIG. 16B) is such that the sliding surface 721 of the second buffer member 72 and the vehicle body mounting bracket 2 when the outer column 34 is unclamped to the vehicle body mounting bracket 2 are used.
- the side plate 24 is formed at a height larger than the gap between the side plate 24 and the outer surface 241.
- the second buffer member 72 presses the back surface 721A of the sliding contact surface 721 against the end surface 68 of the movable tilt lock gear 6 on the tilt stopper 5 side, and the bent portions 726 and 727 are placed in the through hole 63 of the movable tilt lock gear 6. Engage with the circumference. Further, the cylindrical convex portions 727 and 728 of the second buffer member 72 are fitted into the circular concave portions (see FIGS. 8C and 10A) 631 and 631 of the movable tilt lock gear 6.
- the second buffer member 72 moves with respect to the movable tilt lock gear 6 in a plane parallel to the paper surface of FIG. 8A and in a direction orthogonal to the paper surface of FIG. Movement is blocked and installed.
- the sliding surface 721 of the second buffer member 72 has a thickness T2 of the second buffer member 72 that is greater than the end surface 68 (sliding surface) of the movable tilt lock gear 6 than the side plate 24 of the vehicle body mounting bracket 2. It protrudes to the side surface 241 side.
- the plate thickness T2 of the second buffer member 72 and the plate thickness T1 of the first buffer member 71 are formed to the same thickness.
- the movable tilt lock gear 6 Since the protrusion 62 of the movable tilt lock gear 6 is engaged with the recess 431 of the operation lever 43, when the operation lever 43 is rotated counterclockwise, the movable tilt is synchronized with the rotation operation of the operation lever 43.
- the lock gear 6 also rotates counterclockwise. Since the abutment surface 716 of the first buffer member 71 abuts on the recess 431, the hitting sound when the projection 62 and the recess 431 abut when the operation lever 43 is rotated is suppressed to a low level.
- the fixed cam 8 does not rotate because the planes 861 and 861 of the anti-rotation portion 86 of the fixed cam 8 are fitted in the tilt adjusting long groove 26 so that the rotation is restricted, and the movable tilt lock gear 6 and the wire spring 69 are not connected. Rotate together counterclockwise. Since the outer peripheral surfaces of the cylindrical convex portions 727 and 728 of the second buffer member 72 are in line contact with the large-diameter outer peripheral surface 87 of the fixed cam 8 (see FIG. 8C), the metal-to-metal contact is prevented. The movable tilt lock gear 6 is smoothly guided by being guided by the large-diameter outer peripheral surface 87 of the fixed cam 8.
- the tilt stopper 5 can suppress the play between the tightening rod 41 and the fixed cam 8.
- the movable tilt lock gear 6 moves slightly in the vertical direction of the vehicle body while the fixed cam 8 remains fixed, and the gear 61 of the movable tilt lock gear 6 and the gear 471 of the fixed tilt lock gear 47 are in a normal meshing state. . Therefore, even if the driver collides with the steering wheel during a secondary collision, the column does not move in the tilt direction, and the airbag provided on the steering wheel can catch the occupant at an effective position.
- the contact surface (see FIGS. 6 and 19) 434 of the operation lever 43 is located on the front side of the vehicle body of the fixed tilt lock gear 47.
- the operation lever 43 stops in contact with the end surface 478. Since the operation lever 43 is made of synthetic resin, the hitting sound when the contact surface 434 of the operation lever 43 contacts the end surface 478 of the fixed tilt lock gear 47 is suppressed to a low level.
- the movable tilt lock gear 6 is also rotated clockwise and fixed to the gear 61 of the movable tilt lock gear 6.
- the gear 471 of the tilt lock gear 47 is disengaged.
- the peak of the inclined cam surface 85 of the fixed cam 8 and the valley of the inclined cam surface of the movable cam 42 mesh with each other. Then, the axial positions of the fixed cam 8 and the movable cam 42 relatively approach each other, and the side plate 25 of the vehicle body mounting bracket 2 is elastically returned in the direction opposite to the clamping direction.
- the outer column 34 is in a free state (tilt unclamp) with respect to the side plates 24 and 25 of the vehicle body mounting bracket 2. Further, the clamp member of the outer column 34 is elastically returned to the outside in the direction in which the inner surfaces of the clamp members are separated from each other, and the width of the slit of the outer column 34 is increased. Accordingly, the inner peripheral surface of the outer column 34 is expanded in diameter, and the outer peripheral surface of the inner column 31 is loosened and unclamped (telescopic unclamping).
- the outer column 34 is tilted while guiding the rotation stoppers 86 of the tilt stopper 48, the tilt stopper 5, and the fixed cam 8 to the long slots 26 and 27 for tilt adjustment of the vehicle body mounting bracket 2.
- the tilt direction of the steering wheel 103 can be adjusted arbitrarily.
- the arcuate surfaces 522 and 522 of the tilt stopper 5 come into contact with the end of the tilt adjusting long groove 26 at the tilt adjusting end, the arcuate surfaces 522 and 522 are elastically deformed, and the impact at the tilt adjusting end can be reduced. it can.
- the outer column 34 is displaced in the telescopic direction along the outer peripheral surface of the inner column 31 while the telescopic adjustment long groove of the outer column 34 is guided to the tightening rod 41, and the telescopic direction adjustment of the steering wheel 103 is arbitrarily performed. It can be carried out.
- the movable tilt lock gear 6 When tilt unclamping and telescopic unclamping, the movable tilt lock gear 6 is separated from the outer surface 241 of the left side plate 24. When the outer column 34 is displaced in the tilt direction and adjustment in the tilt direction is performed, the end surface 68 of the movable tilt lock gear 6 comes into contact with the outer surface 241 of the left side plate 24 due to an impact at the time of tilt adjustment.
- the slidable contact surfaces 711 and 712 of the first buffer member 71 and the slidable contact surface 721 of the second buffer member 72 abut against the outer surface 241 of the left side plate 24, and the rotational center of the movable tilt lock gear 6 is Since they are provided apart from each other, contact between metals due to rattling can be avoided, and the hitting sound can be kept small. Further, since the tilt stopper 5 suppresses rattling of the tightening rod 41 and the fixed cam 8, the hitting sound can be reduced.
- the height H (see FIG. 16B) of the columnar convex portions 727 and 728 of the second buffer member 72 is the same as that when the outer column 34 is unclamped to the vehicle body mounting bracket 2.
- the height is larger than the gap between the sliding contact surface 721 of the second buffer member 72 and the outer surface 241 of the side plate 24 of the vehicle body mounting bracket 2. Therefore, even if the outer column 34 is unclamped to the vehicle body mounting bracket 2, there is no possibility that the cylindrical convex portions 727 and 728 of the second buffer member 72 come out of the concave portions 631 and 631 of the movable tilt lock gear 6.
- FIG. 18 is a perspective view showing the fixed tilt lock gear 47 alone
- FIG. 18 (a) is a perspective view of the fixed tilt lock gear 47 as viewed obliquely from the outside in the vehicle width direction
- FIG. 18 (b) is FIG. It is the perspective view seen from the further lower side rather than (a).
- FIG. 19 is a component diagram showing the fixed tilt lock gear 47 alone
- FIG. 19 (a) is a front view of the fixed tilt lock gear 47
- FIG. 19 (b) is a plan view of FIG. 19 (a)
- FIG. ) Is a bottom view of FIG.
- FIG. 20 is a front view of the vicinity of the operation lever 43 showing a state in which the operation lever 43 is rotated clockwise to unclamp the outer column 34 to the vehicle body mounting bracket 2
- FIG. 21 is a diagram illustrating the operation lever 43 in the counterclockwise direction.
- FIG. 4 is a front view of the vicinity of the operation lever 43 showing a state in which the outer column 34 is clamped to the vehicle body mounting bracket 2 by rotating.
- the operation lever 43 made of synthetic resin has an engagement protrusion 433 formed at the tip of a thin plate-like elastic deformation portion 432.
- the engagement protrusion 433 is formed to protrude toward the outer side surface 241 of the side plate 24.
- a sliding contact surface composed of a groove portion 472, an inclined surface 473, and a step portion 474 is formed on the outer surface of the fixed tilt lock gear 47.
- the engaging protrusion 433 is elastically deformed by the elastic deformation portion 432 and always slides in contact with the sliding contact surface formed by the groove portion 472, the inclined surface 473, and the step portion 474, and the operation lever 43 moves outward in the vehicle width direction.
- the urging force of is always given. Therefore, the play of the operation lever 43 is eliminated, and the operational feeling of the operation lever 43 is improved.
- the length of the groove part 472, the inclined surface 473, and the step part 474 in the vertical direction of the vehicle body is slightly longer than the tilt adjustment length of the outer column 34.
- the groove portion 472 is formed to be recessed inward in the vehicle width direction (upper side in FIG. 19B) from the front end of the vehicle body of the inclined surface 473 (left end in FIG. 19B), and parallel to the outer side surface 241 of the side plate 24.
- the length in the vehicle front-rear direction (the length in the left-right direction in FIG. 19B) is slightly longer than the length of the engagement protrusion 433 in the vehicle front-rear direction.
- a wall portion 475 that rises steeply toward the outside in the vehicle width direction (the lower side in FIG. 19B) is formed at the vehicle body front end of the groove portion 472.
- the inclined surface 473 is formed so as to increase with a gentle inclination outward in the vehicle width direction as it goes to the rear side of the vehicle body.
- a steep slope 476 is formed, which falls steeply toward the inner side in the vehicle width direction (upper side in FIG. 19B) and is connected to the stepped portion 474.
- the stepped portion 474 is parallel to the outer surface 241 of the side plate 24, and the length in the vehicle longitudinal direction (the length in the left-right direction in FIG. 19B) is slightly longer than the length of the engagement protrusion 433 in the vehicle longitudinal direction. Is formed.
- FIG. 20 is a front view of the vicinity of the operation lever 43 showing a state in which the outer column 34 is unclamped to the vehicle body mounting bracket 2.
- the engagement protrusion 433 engages with the groove 472 at the unclamping position.
- the groove portion 472 is sandwiched between the vehicle body front ends of the wall portion 475 and the inclined surface 473 and is formed slightly longer than the tilt adjustment length of the outer column 34. Therefore, when the tilt of the outer column 34 is adjusted, the engaging protrusion 433 is guided by the groove 472 and moves, thereby restricting the operation lever 43 from rotating.
- the operation lever 43 is not rattled at the time of tilt adjustment, and the operation lever is operated in order to prevent noise generated when performing the tilt adjustment when the movable tilt lock gear 6 and the fixed tilt lock gear 47 are halfway engaged. It is possible to prevent stopping on the way.
- FIG. 21 is a front view of the vicinity of the operation lever 43 showing a state in which the outer column 34 is clamped to the vehicle body mounting bracket 2.
- the present invention is applied to a tilt / telescopic type steering apparatus capable of both tilt position adjustment and telescopic position adjustment.
- the present invention is applied to a tilt type steering apparatus capable of only tilt position adjustment.
- the invention may be applied.
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Abstract
Description
に形成されている。
102 ステアリングシャフト
102A 上部ステアリングシャフト
103 ステアリングホイール
104 ユニバーサルジョイント
105 中間シャフト
106 ユニバーサルジョイント
107 ステアリングギヤ
108 タイロッド
2 車体取付けブラケット
22 カプセル
23 上板
24 側板
241 外側面
242 内側面
243 リブ
25 側板
251 外側面
252 内側面
253 隙間
26、27 チルト調整用長溝
31 インナーコラム
32 操舵補助部
321 電動モータ
322 減速ギヤボックス部
323 出力軸
33 ブラケット
34 アウターコラム
41 締付けロッド
411 円盤状頭部
412 回り止め部
42 可動カム
43 操作レバー
431 凹部
432 弾性変形部
433 係合突起
434 当接面
44 カラー
45 スラストベアリング
46 ナット
47 固定チルトロックギヤ
471 ギヤ
472 溝部
473 傾斜面
474 段差部
475 壁部
476 急斜面
477 ボルト
478 端面
48 チルトストッパ
5 チルトストッパ
51 筒状部
52 フランジ部
521 平面
522 円弧面
523 右端面
524 左端面
53 貫通孔
54 スリット
55 係合突起
551 傾斜面
552 係止面
56 円弧状溝
57 円弧状凹面
58 直線
6 可動チルトロックギヤ
61 ギヤ
62 突起
621 端面
63 貫通孔
631 凹部
64 係合突起
65、66 係合凹部
67 端面
68 端面
69 線ばね(ばね)
691 アーム部
692、693 折り曲げ部
694 連結部
695 円弧状部
71 第1の緩衝部材
711、712 摺接面
711A、712A 裏面
713、714、715 折り曲げ部
716 当接面
717 折り曲げ部
72 第2の緩衝部材
721 摺接面
721A 裏面
722 折り曲げ部
723、724 摺接面
723A、724A 裏面
725、726 折り曲げ部
727、728 凸部
8 固定カム
81 外周面
82 傾斜面
83 平面
84 貫通孔
85 傾斜カム面
86 回り止め部
861 平面
862 円弧面
87 大径外周面
88 端面
89 直線(対称軸)
Claims (5)
- 車体に取付け可能な車体取付けブラケット、
上記車体取付けブラケットにチルト位置が調整可能に支持されると共に、ステアリングホイールを装着したステアリングシャフトを回動可能に軸支したコラム、
所望のチルト位置で上記車体取付けブラケットに上記コラムを締付けてクランプするために、上記車体取付けブラケットに形成されたチルト調整用長溝及びコラムに挿通された締付けロッド、
上記締付けロッドの一端に支承され上記車体取付けブラケットの一側面を上記コラムに押圧する固定カム、
上記締付けロッドの一端に上記固定カムに対向して操作レバーとともに回動可能に支承された可動カム、
上記固定カムと可動カムの対向する面に各々設けられ、上記固定カムに対して可動カムを相対的に軸方向に押圧するカム面、
上記可動カムに対して固定カムを相対回転不能にするために上記固定カムに形成され、上記チルト調整用長溝に内嵌して、上記コラムのチルト位置の調整時にチルト調整用長溝に沿って摺動可能な回り止め部、
上記車体取付けブラケットの一側面に形成された固定チルトロックギヤ、
上記操作レバーの回動操作に同期して回動して、上記固定チルトロックギヤと噛合い可能で、上記固定カムに対してチルト方向に移動可能に外嵌する可動チルトロックギヤ、
上記可動チルトロックギヤと固定カムとの間に介挿され、上記固定カムに対する可動チルトロックギヤのチルト方向の移動を弾性的に支持するばね、
上記固定カム、可動チルトロックギヤ、及びばねを一体に保持するチルトストッパを備えたこと
を特徴とするステアリング装置。 - 請求項1に記載されたステアリング装置において、
上記チルトストッパは、上記チルト調整用長溝に内嵌して、上記コラムのチルト位置の調整時にチルト調整用長溝に沿って摺動可能で、チルト調整端でチルト調整用長溝の端部に当接して衝撃を緩和するものであること
を特徴とするステアリング装置。 - 請求項2に記載されたステアリング装置において、
上記チルトストッパは、
上記チルト調整用長溝に内嵌して、上記コラムのチルト位置の調整時にチルト調整用長溝に沿って摺動可能なフランジ部と、
上記フランジ部のチルト調整方向の端面近傍に形成され、チルト調整用長溝のチルト調整端にフランジ部が当接した時の衝撃を緩和する空間部とを備えたこと
を特徴とするステアリング装置。 - 請求項3に記載されたステアリング装置において、
上記チルトストッパは、
上記フランジ部と一体に形成され、上記固定カムの軸心に形成された貫通孔に内嵌する筒状部と、
上記筒状部の端部に形成され、筒状部の外周面よりも半径方向外側に突出し、上記固定カムのカム面側の端面に係合可能な係合突起と、
上記筒状部の軸心に形成され、上記締付けロッドが挿通される貫通孔とを備え、
上記固定カム、可動チルトロックギヤ、及びばねを、上記フランジ部の端面と係合突起の間に挟持して一体に保持すること
を特徴とするステアリング装置。 - 請求項1に記載されたステアリング装置において、
上記チルトストッパはチルトストッパの中心を通る直線を対称軸として線対称な形状に形成されていること
を特徴とするステアリング装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180001076.0A CN102438874B (zh) | 2010-07-21 | 2011-07-14 | 转向装置 |
EP11775902.7A EP2594454B1 (en) | 2010-07-21 | 2011-07-14 | Steering device |
JP2011534964A JP5333595B2 (ja) | 2010-07-21 | 2011-07-14 | ステアリング装置 |
US13/265,430 US8677856B2 (en) | 2010-07-21 | 2011-07-14 | Steering device |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JP2010-163574 | 2010-07-21 | ||
JP2010163545 | 2010-07-21 | ||
JP2010-163545 | 2010-07-21 | ||
JP2010163574 | 2010-07-21 | ||
JP2011-082762 | 2011-04-04 | ||
JP2011082762 | 2011-04-04 |
Publications (1)
Publication Number | Publication Date |
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WO2012011424A1 true WO2012011424A1 (ja) | 2012-01-26 |
Family
ID=45496851
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2011/066051 WO2012011424A1 (ja) | 2010-07-21 | 2011-07-14 | ステアリング装置 |
PCT/JP2011/066053 WO2012011426A1 (ja) | 2010-07-21 | 2011-07-14 | ステアリング装置 |
PCT/JP2011/066052 WO2012011425A1 (ja) | 2010-07-21 | 2011-07-14 | ステアリング装置 |
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PCT/JP2011/066053 WO2012011426A1 (ja) | 2010-07-21 | 2011-07-14 | ステアリング装置 |
PCT/JP2011/066052 WO2012011425A1 (ja) | 2010-07-21 | 2011-07-14 | ステアリング装置 |
Country Status (5)
Country | Link |
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US (3) | US8677856B2 (ja) |
EP (3) | EP2597012B1 (ja) |
JP (3) | JP5333595B2 (ja) |
CN (3) | CN102438875B (ja) |
WO (3) | WO2012011424A1 (ja) |
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JP2012218711A (ja) * | 2011-04-14 | 2012-11-12 | Mitsubishi Motors Corp | 車両のステアリング装置 |
WO2014010641A2 (ja) | 2012-07-12 | 2014-01-16 | 日本精工株式会社 | チルトステアリング装置 |
US8991863B2 (en) | 2011-12-28 | 2015-03-31 | Thyssenkrupp Presta Aktiengesellschaft | Locking device for an adjustable steering column |
US9150240B2 (en) | 2012-01-20 | 2015-10-06 | Thyssenkrupp Presta Aktiengesellschaft | Steering column for a motor vehicle |
US9193376B2 (en) | 2011-11-16 | 2015-11-24 | Thyssenkrupp Presta Aktiengesellschaft | Fixing device for an adjustable steering column for a motor vehicle |
US9290197B2 (en) | 2012-03-26 | 2016-03-22 | Thyssenkrupp Presta Aktiengesellschaft | Plug-on body for a clamping bolt |
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GB201110277D0 (en) * | 2011-06-17 | 2011-08-03 | Trw Ltd | A clamp assembly for a steering column assembly |
DE102013107728B4 (de) * | 2013-01-23 | 2024-06-06 | Zf Automotive Germany Gmbh | Klemmvorrichtung für eine längsverstellbare und/oder höhenverstellbare Lenksäule eines Fahrzeugs |
US9505425B2 (en) * | 2013-09-30 | 2016-11-29 | Nsk Ltd. | Position adjustment device of steering wheel |
JP6350849B2 (ja) * | 2014-01-22 | 2018-07-04 | 株式会社ジェイテクト | ステアリング装置 |
JP5958887B2 (ja) * | 2014-02-05 | 2016-08-02 | 日本精工株式会社 | ステアリング装置 |
JP5835537B1 (ja) * | 2014-02-19 | 2015-12-24 | 日本精工株式会社 | ステアリング装置 |
JP6304542B2 (ja) * | 2014-06-20 | 2018-04-04 | 株式会社ジェイテクト | ステアリング装置 |
US9446780B2 (en) * | 2014-07-25 | 2016-09-20 | Nsk Ltd. | Steering apparatus |
WO2016068437A1 (ko) * | 2014-10-27 | 2016-05-06 | 남양공업주식회사 | 스티어링 컬럼의 틸팅장치 |
KR101648503B1 (ko) * | 2015-01-30 | 2016-08-16 | 남양공업주식회사 | 스티어링 컬럼의 틸팅장치 |
DE102016220003A1 (de) * | 2016-10-13 | 2018-04-19 | Thyssenkrupp Ag | Fixierelement für eine Lenksäule und Lenksäule für ein Kraftfahrzeug |
JP6763822B2 (ja) * | 2017-06-02 | 2020-09-30 | ポップリベット・ファスナー株式会社 | スタビライザー |
US10286945B2 (en) * | 2017-10-05 | 2019-05-14 | Thyssenkrupp Ag | Adjustable steering column assembly |
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DE102018128119A1 (de) * | 2018-11-09 | 2020-05-14 | Trw Automotive Gmbh | Feststelleinrichtung für eine verstellbare Lenksäulenbaugruppe |
JP7198131B2 (ja) * | 2019-03-22 | 2022-12-28 | Kybモーターサイクルサスペンション株式会社 | 懸架装置 |
US11230316B2 (en) * | 2019-09-30 | 2022-01-25 | Steering Solutions Ip Holding Corporation | Stamped metal outer cam for steering system |
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WO2022016553A1 (zh) * | 2020-07-24 | 2022-01-27 | 华为技术有限公司 | 线控转向系统和转向控制方法 |
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- 2011-07-14 CN CN201180001077.5A patent/CN102438875B/zh active Active
- 2011-07-14 WO PCT/JP2011/066051 patent/WO2012011424A1/ja active Application Filing
- 2011-07-14 US US13/265,440 patent/US8661930B2/en active Active
- 2011-07-14 JP JP2011534964A patent/JP5333595B2/ja active Active
- 2011-07-14 CN CN201180001076.0A patent/CN102438874B/zh active Active
- 2011-07-14 EP EP11775901.9A patent/EP2431257B1/en active Active
- 2011-07-14 WO PCT/JP2011/066053 patent/WO2012011426A1/ja active Application Filing
- 2011-07-14 JP JP2011534961A patent/JP5333594B2/ja active Active
- 2011-07-14 US US13/265,451 patent/US8671796B2/en active Active
- 2011-07-14 WO PCT/JP2011/066052 patent/WO2012011425A1/ja active Application Filing
- 2011-07-14 EP EP11775902.7A patent/EP2594454B1/en active Active
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2012218711A (ja) * | 2011-04-14 | 2012-11-12 | Mitsubishi Motors Corp | 車両のステアリング装置 |
US9193376B2 (en) | 2011-11-16 | 2015-11-24 | Thyssenkrupp Presta Aktiengesellschaft | Fixing device for an adjustable steering column for a motor vehicle |
US8991863B2 (en) | 2011-12-28 | 2015-03-31 | Thyssenkrupp Presta Aktiengesellschaft | Locking device for an adjustable steering column |
US9150240B2 (en) | 2012-01-20 | 2015-10-06 | Thyssenkrupp Presta Aktiengesellschaft | Steering column for a motor vehicle |
US9290197B2 (en) | 2012-03-26 | 2016-03-22 | Thyssenkrupp Presta Aktiengesellschaft | Plug-on body for a clamping bolt |
WO2014010641A2 (ja) | 2012-07-12 | 2014-01-16 | 日本精工株式会社 | チルトステアリング装置 |
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Also Published As
Publication number | Publication date |
---|---|
JPWO2012011425A1 (ja) | 2013-09-09 |
US20130104688A1 (en) | 2013-05-02 |
JP5429297B2 (ja) | 2014-02-26 |
EP2431257A4 (en) | 2018-03-21 |
JP5333594B2 (ja) | 2013-11-06 |
EP2597012B1 (en) | 2020-07-01 |
JPWO2012011424A1 (ja) | 2013-09-09 |
WO2012011426A1 (ja) | 2012-01-26 |
EP2431257B1 (en) | 2020-03-18 |
EP2594454A4 (en) | 2018-03-21 |
US8661930B2 (en) | 2014-03-04 |
US8677856B2 (en) | 2014-03-25 |
CN102438875A (zh) | 2012-05-02 |
WO2012011425A1 (ja) | 2012-01-26 |
JP5333595B2 (ja) | 2013-11-06 |
CN102438875B (zh) | 2014-05-28 |
US8671796B2 (en) | 2014-03-18 |
EP2597012A4 (en) | 2018-03-21 |
EP2594454A1 (en) | 2013-05-22 |
US20130104687A1 (en) | 2013-05-02 |
CN102438874A (zh) | 2012-05-02 |
CN102438876B (zh) | 2014-01-15 |
EP2594454B1 (en) | 2020-01-01 |
EP2431257A1 (en) | 2012-03-21 |
US20120266715A1 (en) | 2012-10-25 |
CN102438874B (zh) | 2014-03-19 |
JPWO2012011426A1 (ja) | 2013-09-09 |
EP2597012A1 (en) | 2013-05-29 |
CN102438876A (zh) | 2012-05-02 |
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