WO2022138191A1 - ステアリング装置 - Google Patents
ステアリング装置 Download PDFInfo
- Publication number
- WO2022138191A1 WO2022138191A1 PCT/JP2021/045279 JP2021045279W WO2022138191A1 WO 2022138191 A1 WO2022138191 A1 WO 2022138191A1 JP 2021045279 W JP2021045279 W JP 2021045279W WO 2022138191 A1 WO2022138191 A1 WO 2022138191A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support member
- hole
- column
- tilt
- elongated hole
- Prior art date
Links
- 239000002775 capsule Substances 0.000 description 23
- 230000004048 modification Effects 0.000 description 23
- 238000012986 modification Methods 0.000 description 23
- 230000002093 peripheral effect Effects 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 10
- 230000000149 penetrating effect Effects 0.000 description 10
- 108010081870 CAM741 Proteins 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- B62D1/189—Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment the entire column being tiltable as a unit
-
- 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
- B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
- B62D1/195—Yieldable supports for the steering column
-
- 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
- B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
Definitions
- This disclosure relates to a steering device.
- the steering device includes a steering shaft that is connected to the steering wheel and extends in the axial direction, and a steering column that is supported on the outer peripheral side of the steering shaft.
- Patent Document 1 discloses a tilt-type steering device for changing the height of the steering wheel according to the physique of the driver, the driving posture, and the like.
- the present disclosure has been made in view of the above problems, and an object of the present disclosure is to provide a steering device capable of further reducing the amount of movement of the column bracket at the time of a secondary collision.
- the steering device includes a steering shaft connected to a steering wheel and extending in the axial direction, and a tubular upper column arranged outside the steering shaft in the radial direction. It has a tubular lower column that fits into the upper column and can move relative to the upper column in the axial direction, and a side plate portion located on the side of the upper column, and is separated from the vehicle body in the event of a collision.
- the support member comprises a possible column bracket, a support member provided on the upper column, and a pin extending along the vehicle width direction and penetrating the side plate portion and the support member, wherein the support member has the pin.
- a through hole to penetrate, a long hole extending from the through hole toward the steering wheel, and a stopper located between the through hole and the long hole are included, and the pin hits the stopper in the event of a collision to cause the stopper. Is deformed so that the pin can move from the through hole to the elongated hole.
- the force to the front side is transmitted to the upper column via the input shaft of the steering shaft. Since the upper column is provided with a support member, the support member moves forward relative to the pin. Specifically, when the support member moves forward, the stopper is damaged by the pin, and the pin moves relatively in the elongated hole of the support member. Then, when the pin hits the end of the edge of the elongated hole, the pin then pushes the side plate portion forward, so that the column bracket is detached from the vehicle body. After that, the upper column and the column bracket move forward.
- the pin moves to the front of the column bracket by the distance that the pin moves in the elongated hole of the support member while maintaining the energy absorption capacity due to the relative movement of the upper column and the lower column.
- the amount of movement of the energy is reduced. Therefore, the space on the front side of the column bracket after the secondary collision becomes larger, and more parts or larger parts can be arranged in the space on the front side of the column bracket.
- the upper column includes a column elongated hole extending along the axial direction, and the support member is arranged in the column elongated hole.
- the support member is detachably provided on the upper column. By attaching and detaching the support member to and from the upper column in this way, it is possible to easily switch between the telescopic specification and the specification without the telescopic function.
- the stopper is a protrusion.
- the height of the protrusion By appropriately changing the height of the protrusion, it is possible to easily adjust the magnitude of the load that the pin gets over the protrusion and enters the elongated hole.
- the side plate portion includes a tilt elongated hole extending in a direction intersecting the extending direction of the elongated hole, and the pin penetrates the tilt elongated hole. This makes it possible to change the height of the steering wheel according to the physique of the driver, the driving posture, and the like.
- the amount of forward movement of the column bracket is reduced in the event of a secondary collision.
- FIG. 1 is a perspective view of the steering device according to the embodiment.
- FIG. 2 is an exploded perspective view of the steering device of FIG.
- FIG. 3 is a side view of a part of the steering device of FIG.
- FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG.
- FIG. 5 is a perspective view of the support member in the embodiment.
- FIG. 6 is a side view of FIG.
- FIG. 7 is a side view of the steering device according to the embodiment.
- FIG. 8 is a side view of the support member in the embodiment, and is a diagram schematically showing the positions of the pins before and after the secondary collision.
- FIG. 9 is a side view of the steering device according to the embodiment, and is a diagram showing a state after the secondary collision.
- FIG. 9 is a side view of the steering device according to the embodiment, and is a diagram showing a state after the secondary collision.
- FIG. 10 is a side view of the steering device in the comparative example, and is a diagram showing a state after the secondary collision.
- FIG. 11 is a side view of the support member in the comparative example, and is a diagram schematically showing the positions of the pins before and after the secondary collision.
- FIG. 12 is a graph schematically showing the relationship between the collision load received by the steering device and the stroke in the secondary collision.
- FIG. 13 is a perspective view of the support member in the first modification.
- FIG. 14 is a side view of FIG.
- FIG. 15 is a perspective view of the support member in the second modification.
- FIG. 16 is a side view of FIG.
- FIG. 17 is a perspective view of the support member in the third modification.
- FIG. 18 is a side view of FIG.
- FIG. 19 is a perspective view of the support member in the fourth modification.
- FIG. 20 is a side view of FIG.
- FIG. 21 is a perspective view of the support member in the fifth modification.
- the present invention is not limited to the embodiments for carrying out the following inventions (hereinafter referred to as embodiments).
- the components in the following embodiments include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those that are in a so-called equal range. Further, the components disclosed in the following embodiments can be appropriately combined.
- the direction along the rotation axis Ax of the steering shaft 3 is referred to as an axial direction
- the direction intersecting the rotation axis Ax (for example, the direction orthogonal to the rotation axis Ax) is referred to as a radial direction.
- the front of the vehicle body is indicated by FR
- the rear of the vehicle body is indicated by RR
- the right side of the vehicle body is indicated by RH
- the left side of the vehicle body is indicated by LH.
- FIG. 1 is a perspective view of the steering device according to the embodiment.
- FIG. 2 is an exploded perspective view of the steering device of FIG.
- FIG. 3 is a side view of a part of the steering device of FIG.
- FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG.
- the steering device 1 includes a steering wheel 2, a steering shaft 3, a steering column 4, a gear box 5, a tilt bracket 6, and a tilt mechanism 7.
- the tilt bracket 6 is an example of a column bracket.
- the steering wheel 2 is connected to the rear end portion of the steering shaft 3. Then, when the driver operates the steering wheel 2, the steering shaft 3 rotates around the rotation shaft Ax, and an operation torque is applied to the steering shaft 3.
- a gear box 5 is provided at the front end of the steering shaft 3.
- An ECU 51 and an electric motor 52 are assembled in the gear box 5.
- the ECU 51 controls the operation of the electric motor 52.
- Auxiliary torque is applied to the steering shaft 3 by the ECU 51 and the electric motor 52. That is, the steering device 1 of the present embodiment is an electric power steering device that assists the driver's steering with the electric motor 52.
- the steering shaft 3 includes an upper shaft 31 and a lower shaft 32.
- the upper shaft 31 and the lower shaft 32 are cylindrical shafts.
- the upper shaft (input shaft) 31 and the lower shaft (output shaft) 32 shown in FIG. 4 extend in the axial direction and are formed in a cylindrical shape along the axial direction of the rotation shaft Ax.
- the steering wheel 2 is connected to the rear end of the upper shaft 31.
- the front end of the upper shaft 31 is externally fitted to the lower shaft 32.
- the front end portion of the upper shaft 31 and the rear end portion of the lower shaft 32 are spline-fitted. Therefore, the upper shaft 31 can slide in the axial direction with respect to the lower shaft 32.
- the steering shaft 3 is expandable and contractible.
- the upper shaft 31 is also referred to as an input shaft
- the lower shaft 32 is also referred to as an output shaft.
- the steering column 4 is an outer cylinder extending in the axial direction and arranged on the outer peripheral side of the steering shaft 3.
- the steering column 4 includes an upper column 41 and a lower column 42.
- the upper column 41 rotatably supports the upper shaft (input shaft) 31.
- the upper column 41 is arranged closer to the steering wheel 2 (that is, on the rear side of the vehicle body).
- the lower column 42 is arranged on the opposite side of the steering wheel 2 (that is, the front side in the vehicle body) with respect to the upper column 41.
- the lower column 42 rotatably supports the lower shaft (output shaft) 32.
- the upper column 41 and the lower column 42 have a cylindrical shape and are relatively movable in the axial direction with each other.
- a tilt bracket (column bracket) 6 is provided on the outer peripheral side of the steering column 4.
- the tilt bracket 6 includes a top plate portion 61, a pair of side plate portions 62, 63, and a vertical plate 64.
- the top plate portion 61 extends in the left-right direction.
- a notch 611 is provided at the right end of the top plate portion 61.
- the notch 611 extends long along the axial direction (ie, in the front-rear direction of the vehicle body).
- the notch 611 has an open end at the rear end of the vehicle body.
- a detachment capsule 613 is provided at the right end of the top plate portion 61. In other words, the detachment capsule 613 sandwiches the right end portion of the top plate portion 61 from above and below so as to cover the notch 611.
- the detaching capsule 613 is a plate-shaped member obtained by bending two plate members at the rear end 613a.
- the detachment capsule 613 has a circular through hole 615.
- the through hole 615 overlaps the notch 611 in a state where the detachment capsule 613 is fitted to the right end of the top plate portion 61. Therefore, a fixing pin (not shown) fixed to the vehicle body 100 shown in FIG. 7, which will be described later, holds the detachment capsule 613 in a state of penetrating the through hole 615 and the notch 611.
- the side plate portion 62 extends downward from the lower surface of the top plate portion 61.
- the side plate portion 62 is located on the left side of the notch 611.
- the side plate portion 62 is provided with a tilt elongated hole 621.
- the tilt elongated hole 621 is an elongated hole extending in the vertical direction.
- the vertical plate 64 extends downward from the front end of the top plate portion 61.
- a notch 612 is provided at the left end of the top plate portion 61.
- the notch 612 extends long along the axial direction (ie, in the front-rear direction of the vehicle body).
- the notch 612 is provided with an open end at the rear end of the vehicle body.
- a detachment capsule 614 is provided at the left end of the top plate portion 61. In other words, the detachment capsule 614 sandwiches the left end portion of the top plate portion 61 from above and below so as to cover the notch 612.
- the detachment capsule 614 is a plate-shaped member obtained by bending two plate members at the rear end 614a.
- the detachment capsule 614 has a circular through hole 616.
- the through hole 616 overlaps the notch 612 in a state where the detachment capsule 614 is fitted to the left end of the top plate portion 61. Therefore, a fixing pin (not shown) fixed to the vehicle body 100 shown in FIG. 7, which will be described later, holds the detachment capsule 614 in a state of penetrating the through hole 616 and the notch 612. Further, the side plate portion 63 extends downward from the lower surface of the top plate portion 61. The side plate portion 63 is located on the right side of the notch 612. The side plate portion 63 is provided with a tilt elongated hole 631. The tilt elongated hole 631 is an elongated hole extending in the vertical direction.
- the steering device 1 is fixed to the vehicle body 100 via the detachable capsules 613 and 614, the top plate portion 61, and the fixing pin (not shown).
- the tilt bracket (column bracket) 6 has side plate portions 62 and 63 located on the side of the upper column 41.
- the steering device 1 includes a tilt mechanism 7.
- the tilt mechanism 7 includes an operation lever 70, a tilt bolt (pin) 71, a support member 8, a cam 74, and a leg portion 410.
- the tilt bolt (pin) 71 includes a head portion 711, a shaft portion 712, and a screw portion 713.
- the outer circumference of the shaft portion 712 is smooth, and a male screw is formed on the outer circumference of the screw portion 713.
- the tilt bolt (pin) 71 extends along the left-right direction, as will be described later. That is, the tilt bolt 71 extends along the vehicle width direction and is provided so as to penetrate the side plate portions 62, 63, the pair of support members 8, the cam 74, the operation lever 70, the nut 751, the thrust bearing 752, and the washer 753.
- one support member 8 is provided on each of the left and right sides of the upper column 41.
- a pair of leg portions 410 are provided downward on both the left and right sides of the upper column 41, and the support member 8 is fitted to the leg portions 410.
- the legs 410 have a rectangular shape extending in the front-rear direction when viewed from the side.
- the leg portion 410 is provided with a column elongated hole 411 extending along the axial direction.
- the column elongated hole 411 penetrates the leg portion 410 in the left-right direction.
- the support member 8 is fitted into the column elongated hole 411 of the leg portion 410. In other words, the support member 8 is detachably provided in the column elongated hole 411 of the leg portion 410.
- the structure of the support member 8 will be described in detail later.
- the operation lever 70 includes a base portion 701 and a lever portion 703.
- the base portion 701 is a cylindrical body, and is provided with an insertion hole 702 penetrating in the left-right direction.
- the lever portion 703 is fixed to the outer peripheral surface of the base portion 701. When the lever portion 703 is pushed downward, the base portion 701 rotates.
- a rotary cam 741 is fitted on the inner peripheral surface of the insertion hole 702 of the base 701. Specifically, a tooth portion is formed on the outer periphery of the rotary cam 741, and an uneven portion is formed on the inner peripheral surface of the insertion hole 702. The tooth portion of the rotary cam 741 meshes with the uneven portion of the insertion hole 702. Therefore, the base 701 and the rotary cam 741 rotate integrally. Further, since the fixed cam 742 does not rotate, the rotating cam 741 and the fixed cam 742 can rotate relative to each other.
- the shaft portion 712 of the tilt bolt (pin) 71 includes a tilt elongated hole 621 of the side plate portion 62 of the tilt bracket 6, a support member 8, a tilt elongated hole 631 of the side plate portion 63, a fixed cam 742, a rotary cam 741, and a thrust bearing. It penetrates 752 and washer 753. Further, the screw portion 713 provided at the tip end portion of the shaft portion 712 meshes with the nut 751, so that the screw portion 713 is fastened to the nut 751.
- the tilt bolt (pin) 71 has a tilt slot 621 of the side plate portion 62 and a tilt length of the side plate portion 63. It moves up and down inside the hole 631. Then, when the operation lever 70 is rotated upward after reaching an appropriate height position, the rotary cam 741 rotates with respect to the fixed cam 742, so that the vertical position of the steering column 4 with respect to the tilt bracket 6 is changed. It is fixed.
- FIG. 5 is a perspective view of the support member in the embodiment.
- FIG. 6 is a side view of FIG.
- FIG. 7 is a side view of the steering device according to the embodiment.
- the support member 8 is a bracket that extends long in the axial direction.
- the support member 8 shown in FIGS. 5 and 6 is arranged on the left side of the vehicle body, but the support member 8 arranged on the right side of the vehicle body also has the same structure.
- the support member 8 includes a first portion 81 on the front side, a second portion 82 on the rear side, and a through hole 83 provided in the central portion in the front-rear direction.
- the first portion 81 is a solid member, and the left side surface 811 is flat. Further, the upper surface 812 and the lower surface 814 of the first portion 81 are also flat.
- the front end surface 813 has an arc shape when viewed from the side.
- the second portion 82 is a frame-shaped member and has an elongated hole 821 penetrating left and right.
- the upper surface 822 and the lower surface 824 of the second portion 82 are flat.
- the rear end surface 823 is arcuate when viewed from the side.
- the edge of the elongated hole 821 includes an upper surface 825, a lower surface 827, and a rear end surface 826.
- the upper surface 825 and the lower surface 827 are flat.
- the rear end surface 826 has an arc shape when viewed from the side. That is, the upper surface 822 and the upper surface 825 extend in parallel, and the lower surface 824 and the lower surface 827 extend in parallel. Further, the rear end surface 823 and the rear end surface 826 are concentric arcs.
- the through hole 83 is a circular through hole that penetrates the support member 8 in the left-right direction. Specifically, the inner peripheral surface 831 of the through hole 83 has an arc shape when viewed from the side.
- the shaft portion 712 of the tilt bolt 71 penetrates through the through hole 83.
- the through hole 83 communicates with the elongated hole 821.
- the elongated hole 821 extends rearward from the through hole 83, that is, toward the steering wheel 2.
- Protrusions 832 and 833 are arranged between the through hole 83 and the elongated hole 821.
- the protrusion 832 is provided at the boundary between the inner peripheral surface 831 and the upper surface 825, and projects downward.
- the protrusion 832 includes a lower surface 832a and a side surface 832b.
- the protrusion 833 is provided at the boundary between the inner peripheral surface 831 and the lower surface 827, and projects upward.
- the protrusion 833 includes an upper surface 833a and a side surface 833b.
- the side surface 832b and the upper surface 825 are orthogonal to each other, and the side surface 833b and the lower surface 827 are orthogonal to each other. Therefore, the protrusions 832 and 833 are likely to fall toward the long hole 821 when a backward load is input from the through hole 83 toward the long hole 821.
- the protrusions 834 and 835 are members for determining the direction when the support member 8 is inserted into the column elongated hole 411 of the upper column 41.
- the protrusion 832 and the protrusion 833 are arranged so as to face each other.
- the protrusion 832 and the protrusion 833 are stoppers for holding the tilt bolt 71 in the through hole 83.
- the side plate portions 62, 63 of the tilt bracket 6 described above include tilt elongated holes 621, 631 extending in a direction intersecting the extending direction of the elongated holes 821 of the support member 8.
- FIG. 8 is a side view of the support member in the embodiment, and is a diagram schematically showing the positions of the pins before and after the secondary collision.
- FIG. 9 is a side view of the steering device according to the embodiment, and is a diagram showing a state after the secondary collision.
- FIG. 10 is a side view of the steering device in the comparative example, and is a diagram showing a state after the secondary collision.
- FIG. 11 is a side view of the support member in the comparative example, and is a diagram schematically showing the positions of the pins before and after the secondary collision.
- FIG. 12 is a graph schematically showing the relationship between the collision load received by the steering device and the stroke in the secondary collision.
- the diameter of the shaft portion 712 of the tilt bolt (pin) 71 is D1
- the inner diameter of the through hole 83 is D2
- the separation distance between the lower surface 832a of the protrusion 832 and the upper surface 833a of the protrusion 833 is D3, and the upper surface 825 and the lower surface 827.
- D4 be the separation distance.
- the diameter D1 is smaller than the inner diameter D2.
- the separation distance D3 is smaller than the diameter D1.
- the separation distance D4 is larger than the diameter D1.
- the first position P1 in the normal state is indicated by a two-dot chain line
- the second position P2 in the initial stage of the secondary collision is indicated by a solid line.
- the steering device 1A of FIG. 10 includes the support member 8A shown in FIG.
- the support member 8A is different from the support member 8 in that there is no elongated hole 821. That is, the second portion 82A in the support member 8A includes a side surface 811 and a flush side surface 821A. As a result, the support member 8A has a symmetrical shape with the through hole 83 interposed therebetween. Further, the through hole 83 is circular in a side view, and when the tilt bolt 71 is penetrated through the through hole 83, the tilt bolt 71 can move together with the support member 8A.
- the detachment capsules 613 and 614 are subjected to the vehicle body 100.
- the top plate portion 61 is detached from the detachable capsules 613 and 614 in a state of being fixed to the above.
- the tilt bracket 6 moves forward.
- the rear ends 613a and 614a of the detached capsules 613 and 614 are moved to the front side in the axial direction by a distance L2 from the rear end of the notch 611.
- the tilt bolt (pin) 71 damages the protrusions 832 and 833 of the support member 8, and the inside of the elongated hole 821 is relatively axial. Moves toward the steering wheel 2 along the line. Therefore, when the embodiment and the comparative example are compared, the moving distance of the tilt bracket 6 is smaller in the embodiment by the axial distance of the elongated hole 821. That is, the distance L1 is smaller than the distance L2 by the axial distance of the elongated hole 821.
- the tilt bolt (pin) 71 damages the protrusions 832 and 833, and the steering wheel 2 is relatively in the elongated hole 821 along the axial direction. Move towards. Therefore, in the initial stage A, the collision load reaches the first peak load. Further, in the latter stage B, the tilt bolt (pin) 71 pushes the tilt bracket 6 forward, the top plate portion 61 is removed from the detachable capsules 613 and 614, and the tilt bracket 6 moves forward. Therefore, in the late stage B, the collision load reaches the second peak load.
- the peak load of the comparative example is larger than the primary peak load and the secondary peak load of the embodiment. Further, the area of the portion surrounded by the graph of the collision load and the X-axis (stroke) indicates the amount of collision energy absorbed.
- the steering device 1 has an upper shaft (input shaft) 31 connected to the steering wheel 2 and extending in the axial direction, and a part thereof fitted to the upper shaft 31 with respect to the upper shaft 31.
- the tubular upper column 41 Fitted into the lower shaft (output shaft) 32 that can move relative to the axial direction, the tubular upper column 41 that is arranged outside the upper shaft 31 in the radial direction and rotatably supports the upper shaft 31, and the upper column 41.
- It has a tubular lower column 42 that can move relative to the upper column 41 in the axial direction, and side plate portions 62 and 63 located on the side of the upper column 41, and can be detached from the vehicle body 100.
- tilt bracket column bracket
- support member 8 provided on the upper column 41
- a tilt bolt 71 provided so as to penetrate the extension side plate portions 62, 63 and the support member 8 along the radial direction.
- the support member 8 is located between the through hole 83 through which the tilt bolt 71 penetrates, the elongated hole 821 extending from the through hole 83 toward the steering wheel 2, and the through hole 83 and the elongated hole 821 to support the tilt bolt 71.
- the support member 8 moves forward relative to the tilt bolt 71. Specifically, when the support member 8 moves forward, the protrusions (stoppers) 832 and 833 are damaged by the tilt bolt 71, and the tilt bolt 71 moves relatively in the elongated hole 821 of the support member 8. Then, when the tilt bolt 71 hits the rear end surface 826 of the edge of the elongated hole 821, the tilt bolt 71 then pushes the side plate portions 62 and 63 forward, so that the tilt bracket (column bracket) 6 is detached from the vehicle body.
- the upper column 41 and the column bracket move forward.
- the amount of forward movement of the tilt bracket (column bracket) 6 is reduced by the distance that the tilt bolt 71 moves in the elongated hole 821 of the support member 8 at the time of a secondary collision. .. Therefore, the space on the front side of the tilt bracket (column bracket) 6 after the secondary collision becomes larger, and more parts or larger parts are arranged in the space on the front side of the tilt bracket (column bracket) 6. It becomes possible.
- the support member 8 has an asymmetrical shape in the front-rear direction with the center in the front-rear direction interposed therebetween.
- the support member 8 mounted on the right side of the upper column 41 can be mounted on the left side of the upper column 41, paying attention to the direction of the elongated hole 821.
- the upper column 41 includes a column elongated hole 411 extending along the axial direction, and the support member 8 is arranged in the column elongated hole 411.
- the support member 8 is attached to the column elongated hole 411, the specification does not have a telescopic function, and the support member 8 can be removed from the column elongated hole 411 to have a telescopic specification.
- the telescopic specification and the specification having no telescopic function can be applied to the same upper column 41, and the parts of the upper column 41 can be shared.
- the support member 8 is detachably provided on the upper column 41. By attaching and detaching the support member 8 to and from the upper column 41 in this way, it is possible to easily switch between the telescopic specification and the specification without the telescopic function.
- the side plate portions 62 and 63 include tilt elongated holes 621 and 631 extending in the vertical direction, and the tilt bolt 71 penetrates the tilt elongated holes 621 and 631. This makes it applicable to a tilt-type steering device for changing the height of the steering wheel 2 according to the physique of the driver, the driving posture, and the like.
- FIG. 13 is a perspective view of the support member in the first modification.
- FIG. 14 is a side view of FIG.
- the support member 8B is a bracket that extends long in the axial direction. Although the support member 8B is arranged on the left side of the vehicle body, the support member 8B arranged on the right side of the vehicle body also has the same structure.
- the support member 8B includes a first portion 81B on the front side, a second portion 82 on the rear side, and a through hole 83B provided in the central portion in the front-rear direction.
- the first portion 81B is a frame-shaped member and has a through hole 811B penetrating to the left and right.
- the upper surface 812 and the lower surface 814 of the first portion 81B are flat.
- the front end surface 813 has an arc shape when viewed from the side.
- the edge of the through hole 811B includes an upper surface 815B, a lower surface 817B, and a front end surface 816B.
- the upper surface 815B and the lower surface 817B are flat.
- the front end surface 816B has an arc shape when viewed from the side. That is, the upper surface 812 and the upper surface 815B extend in parallel, and the lower surface 814 and the lower surface 817B extend in parallel. Further, the front end surface 813 and the front end surface 816B are concentric arcs.
- the second portion 82 is a frame-shaped member and has an elongated hole 821 penetrating left and right. Since the configuration of the second portion 82 is the same as that of the first embodiment shown in FIGS. 5 and 6, the description thereof will be omitted.
- the through hole 83B penetrates the support member 8B in the left-right direction. Specifically, the inner peripheral surfaces 831B and 839B of the through hole 83B are arcuate when viewed from the side.
- the shaft portion 712 of the tilt bolt 71 penetrates through the through hole 83B.
- the through hole 83B communicates with the elongated hole 821. In other words, the elongated hole 821 extends rearward from the through hole 83B, that is, toward the steering wheel 2.
- Projections 832, 833, 837B, and 838B that support the tilt bolt 71 are arranged between the through hole 83B and the elongated hole 821.
- the protrusion 832 is provided at the boundary between the inner peripheral surface 831 and the upper surface 825, and projects downward.
- the protrusion 833 is provided at the boundary between the inner peripheral surface 831 and the lower surface 827, and projects upward.
- the protrusion 832 and the protrusion 833 are arranged so as to face each other.
- the protrusion 832 and the protrusion 833 are stoppers for holding the tilt bolt 71 in the through hole 83B.
- the protrusions 837B and 838B have a shape symmetrical with the protrusions 832 and 833 with the center of the support member 8B in the longitudinal direction interposed therebetween.
- the protrusion 837B protrudes downward, and the protrusion 838B protrudes upward.
- the support member 8B includes a through hole 83B through which the tilt bolt 71 penetrates, an elongated hole 821, and protrusions (stoppers) 832 and 833. Therefore, at the time of the secondary collision, the amount of forward movement of the tilt bracket (column bracket) 6 is reduced by the distance that the tilt bolt 71 moves in the elongated hole 821 of the support member 8B. Further, since the support member 8B has a symmetrical shape in the front-rear direction with the center in the front-rear direction interposed therebetween, the support member 8B can be mounted in the column elongated hole 411 of the upper column 41 with the support member 8B turned upside down. Therefore, the assembling work of the support member 8B becomes easy.
- FIG. 15 is a perspective view of the support member in the second modification.
- FIG. 16 is a side view of FIG.
- the support member 8C is a bracket that extends long in the axial direction. Although the support member 8C is arranged on the left side of the vehicle body, the support member 8C arranged on the right side of the vehicle body also has the same structure.
- the support member 8C includes a first portion 81C on the front side, a second portion 82C on the rear side, and a through hole 83C provided in the central portion in the front-rear direction.
- the first portion 81C is a frame-shaped member and has a through hole 811C penetrating left and right.
- the upper surface 812 and the lower surface 814 of the first portion 81C are flat.
- the front end surface 813 has an arc shape when viewed from the side.
- the edge of the through hole 811C includes an upper surface 815C, a lower surface 817C, a front end surface 816C, and a rear end surface 818C.
- the upper surface 815C and the lower surface 817C are flat.
- the front end surface 816C and the rear end surface 818C are arcuate when viewed from the side. That is, the upper surface 812 and the upper surface 815C extend in parallel, and the lower surface 814 and the lower surface 817C extend in parallel. Further, the front end surface 813 and the front end surface 816C are concentric arcs.
- the second portion 82C is a frame-shaped member and has an elongated hole 821C penetrating to the left and right.
- the edge of the elongated hole 821C includes an upper surface 825, a lower surface 827, a rear end surface 826, and a front end surface 828C.
- the front end surface 828C has an arc shape when viewed from the side.
- the through hole 83C is a circular through hole. That is, the inner peripheral surface 831C of the through hole 83C is circular.
- a stopper portion (stopper) 832C for supporting the tilt bolt 71 is provided between the through hole 83C and the elongated hole 821C.
- the through hole 83C and the elongated hole 821C are separated by the stopper portion 832C.
- the stopper portion 832C is a stopper that holds the tilt bolt 71 in the through hole 83C. At the time of a collision, the tilt bolt 71 hits the stopper portion 832C and the stopper portion 832C is broken, so that the tilt bolt 71 can move from the through hole 83C to the elongated hole 821C.
- the support member 8C includes a through hole 83C through which the tilt bolt 71 penetrates, a long hole 821C, and a stopper portion 832C. Therefore, at the time of the secondary collision, the amount of forward movement of the tilt bracket (column bracket) 6 is reduced by the distance that the tilt bolt 71 moves in the elongated hole 821 of the support member 8C. Further, since the support member 8C has a symmetrical shape in the front-rear direction with the center in the front-rear direction interposed therebetween, the support member 8C can be mounted in the column elongated hole 411 of the upper column 41 with the support member 8C turned upside down. Therefore, the assembling work of the support member 8C becomes easy.
- FIG. 17 is a perspective view of the support member in the third modification.
- FIG. 18 is a side view of FIG.
- the support member 8D is a bracket that extends long in the axial direction.
- the support member 8D is arranged on the left side of the vehicle body, but the support member 8D arranged on the right side of the vehicle body also has the same structure.
- the through hole 83D penetrates the support member 8D in the left-right direction. Specifically, the inner peripheral surface 831D of the through hole 83D has an arc shape when viewed from the side. The shaft portion 712 of the tilt bolt 71 penetrates through the through hole 83D.
- the second portion 82D is a frame-shaped member and has an elongated hole 821D penetrating left and right.
- the upper surface 822D and the lower surface 824D of the second portion 82D are flat.
- the rear end surface 823 is arcuate when viewed from the side.
- the edge of the elongated hole 821D includes an upper surface 825D, a lower surface 827D, and a rear end surface 826.
- the upper surface 825D and the lower surface 827D are flat.
- the rear end surface 826 has an arc shape when viewed from the side. That is, the upper surface 822D and the upper surface 825D extend in parallel, and the lower surface 824D and the lower surface 827D extend in parallel. Further, the rear end surface 823 and the rear end surface 826 are concentric arcs.
- the through hole 83D communicates with the long hole 821D.
- the elongated hole 821D extends rearward from the through hole 83D, that is, toward the steering wheel 2.
- Projections 832D and 833D that support the tilt bolt 71 are arranged between the through hole 83D and the elongated hole 821D.
- the protrusion 832D and the protrusion 833D are stoppers for holding the tilt bolt 71 in the through hole 83D.
- the support member 8D includes a through hole 83D through which the tilt bolt 71 penetrates, a long hole 821D, and protrusions 832D and 833D. Therefore, at the time of the secondary collision, the amount of forward movement of the tilt bracket (column bracket) 6 is reduced by the distance that the tilt bolt 71 moves in the elongated hole 821D of the support member 8D. Further, since the through hole 83D is arranged at the front end portion of the support member 8C, the distance of the elongated hole 821D is longer than that of the support member 8 according to the embodiment. Therefore, at the time of the secondary collision, the distance that the tilt bolt 71 moves in the elongated hole 821D of the support member 8D becomes longer, so that the amount of forward movement of the tilt bracket (column bracket) 6 is further reduced.
- FIG. 19 is a perspective view of the support member in the fourth modification.
- FIG. 20 is a side view of FIG.
- the support member 8E is a bracket that extends long in the axial direction.
- the support member 8E is arranged on the left side of the vehicle body, the support member 8E arranged on the right side of the vehicle body also has the same structure.
- the support member 8E has almost the same structure as the support member 8 according to the first embodiment, only different parts will be described.
- the support member 8E includes a first portion 81 on the front side, a second portion 82E on the rear side, and a through hole 83E provided in the central portion in the front-rear direction.
- the support member 8E is different from the support member 8 in that recesses 836 and 837 are provided.
- the recess 836 has a V-shape in a side view and is a recess that is recessed downward.
- the recess 837 has an inverted V shape when viewed from the side, and is a recess that is recessed upward.
- the recesses 836 and 837 are provided at substantially the same positions as the front and rear positions of the protrusions 832 and 833.
- the support member 8E includes a through hole 83E through which the tilt bolt 71 penetrates, an elongated hole 821, and protrusions 832 and 833. Therefore, in the case of a secondary collision, the amount of forward movement of the tilt bracket (column bracket) 6 is reduced by the distance that the tilt bolt 71 moves in the elongated hole 821 of the support member 8. Further, since the support member 8E has the recesses 836 and 837, the protrusions 832 and 833 are likely to bend when the tilt bolt 71 gets over the protrusions 832 and 833. Therefore, when the tilt bolt 71 moves, the variation in the load overcoming the protrusions 832 and 833 becomes small, and the overcoming load becomes stable. Therefore, the relative movement of the tilt bolt 71 with respect to the support member 8E becomes smooth.
- FIG. 21 is a perspective view of the support member in the fifth modification.
- FIG. 22 is a side view of FIG. 21.
- the support member 8F is a bracket that extends long in the axial direction.
- the support member 8F is arranged on the left side of the vehicle body, but the support member 8F arranged on the right side of the vehicle body also has the same structure.
- the support member 8F has almost the same structure as the support member 8 according to the first embodiment, only different parts will be described.
- the support member 8F includes a first portion 81 on the front side, a second portion 82F on the rear side, and a through hole 83F provided in the central portion in the front-rear direction.
- the support member 8F has different shapes of protrusions 832F and 833F from the support member 8. As shown in FIG. 22, the protrusion 832F has a sharp triangular shape in a side view. The protrusion 832F extends downward.
- the protrusion 833F has a sharp triangular shape when viewed from the side.
- the protrusion 833F extends upward.
- the support member 8F includes a through hole 83F through which the tilt bolt 71 penetrates, a long hole 821, and protrusions 832F and 833F. Therefore, in the case of a secondary collision, the amount of forward movement of the tilt bracket (column bracket) 6 is reduced by the distance that the tilt bolt 71 moves in the elongated hole 821 of the support member 8. Further, the protrusions 832F and 833F have a sharp triangular shape in the side view.
- the protrusions 832F and 833F are easily damaged when the tilt bolt 71 moves, the protrusions 832F and 833F are less likely to receive an impact when the tilt bolt 71 moves, and the tilt bolt 71 is relative to the support member 8F. The movement becomes smooth.
- Steering device Steering wheel 3 Steering shaft 31 Upper shaft (input shaft) 32 Lower shaft (output shaft) 4 Steering column 41 Upper column 410 Leg 411 Column long hole 42 Lower column 5 Gear box 51 ECU 52 Electric Motor 6 Tilt Bracket (Column Bracket) 61 Top plate 611, 612 Notch 613, 614 Detachment capsule 613a, 614a Rear end 615, 616 Through hole 62, 63 Side plate 621, 631 Tilt slot 64 Vertical plate 7 Tilt mechanism 70 Operation lever 701 Base 702 Insertion hole 703 Lever 71 Tilt bolt (pin) 711 Head 712 Shaft 713 Thread 74 Cam 741 Rotating cam 742 Fixed cam 751 Nut 752 Thrust bearing 753 Washer 8, 8A, 8B, 8C, 8D, 8E, 8F Support member 81, 81B, 81C First part 811 Side surface 811B , 8111C Through hole 812 Top surface 814 Front end surface 814 Bottom
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
Description
図1は、実施形態におけるステアリング装置の斜視図である。図2は、図1のステアリング装置の分解斜視図である。図3は、図1のステアリング装置の一部の側面図である。図4は、図3のIV-IV線による断面図である。
まず、図7に示すように、通常時において、ステアリング装置1は、離脱カプセル613、614、天板部61および図外の固定ピンを介して車体100に固定されている。また、図8の二点鎖線の第1位置P1で示すように、支持部材8の貫通孔83にチルトボルト(ピン)71が貫通して設けられている。
次に、第1変形例に係る支持部材について説明する。図13は、第1変形例における支持部材の斜視図である。図14は、図13の側面図である。
次に、第2変形例に係る支持部材について説明する。図15は、第2変形例における支持部材の斜視図である。図16は、図15の側面図である。
次に、第3変形例に係る支持部材について説明する。図17は、第3変形例における支持部材の斜視図である。図18は、図17の側面図である。
次に、第4変形例に係る支持部材について説明する。図19は、第4変形例における支持部材の斜視図である。図20は、図19の側面図である。
次に、第5変形例に係る支持部材について説明する。図21は、第5変形例における支持部材の斜視図である。図22は、図21の側面図である。
2 ステアリングホイール
3 ステアリングシャフト
31 アッパシャフト(入力軸)
32 ロアシャフト(出力軸)
4 ステアリングコラム
41 アッパコラム
410 脚部
411 コラム長孔
42 ロアコラム
5 ギヤボックス
51 ECU
52 電動モータ
6 チルトブラケット(コラムブラケット)
61 天板部
611、612 切欠き
613、614 離脱カプセル
613a、614a 後端
615、616 貫通孔
62、63 側板部
621、631 チルト長孔
64 縦板
7 チルト機構
70 操作レバー
701 基部
702 挿通孔
703 レバー部
71 チルトボルト(ピン)
711 頭部
712 軸部
713 ねじ部
74 カム
741 回転カム
742 固定カム
751 ナット
752 スラストベアリング
753 ワッシャ
8、8A、8B、8C、8D、8E、8F 支持部材
81、81B、81C 第1部位
811 側面
811B、811C 貫通孔
812 上面
813 前端面
814 下面
815B、815C 上面
816B、816C 前端面
817B、817C 下面
818C 後端面
82、82A、82C、82D、82E、82F 第2部位
821、821C、821D 長孔
821A 側面
822、822D 上面
823 後端面
824、824D 下面
825、825D 上面
826 後端面
827、827D 下面
83、83B、83C、83D、83E、83F 貫通孔
831、831B、831C、831D 内周面
832、832D、832F、833、833D、833F 突起(ストッパー)
832C ストッパー部(ストッパー)
834、835 突起部
836、837 窪み
839B 内周面
100 車体
Claims (5)
- ステアリングホイールに連結され軸方向に延びるステアリングシャフトと、
前記ステアリングシャフトの径方向の外側に配置される筒状のアッパコラムと、
前記アッパコラムに嵌合し前記アッパコラムに対して軸方向に相対移動が可能な筒状のロアコラムと、
前記アッパコラムの側方に位置する側板部を有し且つ車体に対して衝突時に離脱可能であるコラムブラケットと、
前記アッパコラムに設けられる支持部材と、
車幅方向に沿って延び前記側板部および前記支持部材を貫通して設けられるピンと、を備え、
前記支持部材は、前記ピンが貫通する貫通孔と、前記貫通孔から前記ステアリングホイールに向けて延びる長孔と、前記貫通孔と前記長孔との間に位置するストッパーと、を含み、
衝突時に前記ピンが前記ストッパーに当たって当該ストッパーが変形することにより、前記ピンが前記貫通孔から前記長孔へ移動可能となる
ステアリング装置。 - 前記アッパコラムは、軸方向に沿って延びるコラム長孔を含み、
前記支持部材は、前記コラム長孔に配置される
請求項1に記載のステアリング装置。 - 前記支持部材は、前記アッパコラムに着脱可能に設けられる、
請求項2に記載のステアリング装置。 - 前記ストッパーは、突起である、
請求項1から3のいずれか1項に記載のステアリング装置。 - 前記側板部は、前記長孔の延びる方向に対して交差する方向に延びるチルト長孔を含み、
前記ピンは、前記チルト長孔を貫通する
請求項1から4のいずれか1項に記載のステアリング装置。
Priority Applications (4)
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CN202180085614.2A CN116648399A (zh) | 2020-12-24 | 2021-12-09 | 转向装置 |
US18/265,848 US20240059344A1 (en) | 2020-12-24 | 2021-12-09 | Steering device |
JP2022572118A JPWO2022138191A1 (ja) | 2020-12-24 | 2021-12-09 | |
EP21910340.5A EP4269213A1 (en) | 2020-12-24 | 2021-12-09 | Steering device |
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JP2020215544 | 2020-12-24 | ||
JP2020-215544 | 2020-12-24 |
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PCT/JP2021/045279 WO2022138191A1 (ja) | 2020-12-24 | 2021-12-09 | ステアリング装置 |
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US (1) | US20240059344A1 (ja) |
EP (1) | EP4269213A1 (ja) |
JP (1) | JPWO2022138191A1 (ja) |
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WO (1) | WO2022138191A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09272446A (ja) | 1996-04-08 | 1997-10-21 | Nippon Seiko Kk | チルト式ステアリング装置 |
KR20160053160A (ko) * | 2014-10-31 | 2016-05-13 | 현대모비스 주식회사 | 조향 컬럼의 충격 흡수 장치 |
KR20160070198A (ko) * | 2014-12-09 | 2016-06-20 | 주식회사 만도 | 자동차의 조향 컬럼 |
JP2017035999A (ja) * | 2015-08-11 | 2017-02-16 | 株式会社山田製作所 | ステアリング装置 |
-
2021
- 2021-12-09 EP EP21910340.5A patent/EP4269213A1/en active Pending
- 2021-12-09 CN CN202180085614.2A patent/CN116648399A/zh active Pending
- 2021-12-09 WO PCT/JP2021/045279 patent/WO2022138191A1/ja active Application Filing
- 2021-12-09 US US18/265,848 patent/US20240059344A1/en active Pending
- 2021-12-09 JP JP2022572118A patent/JPWO2022138191A1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09272446A (ja) | 1996-04-08 | 1997-10-21 | Nippon Seiko Kk | チルト式ステアリング装置 |
KR20160053160A (ko) * | 2014-10-31 | 2016-05-13 | 현대모비스 주식회사 | 조향 컬럼의 충격 흡수 장치 |
KR20160070198A (ko) * | 2014-12-09 | 2016-06-20 | 주식회사 만도 | 자동차의 조향 컬럼 |
JP2017035999A (ja) * | 2015-08-11 | 2017-02-16 | 株式会社山田製作所 | ステアリング装置 |
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US20240059344A1 (en) | 2024-02-22 |
EP4269213A1 (en) | 2023-11-01 |
CN116648399A (zh) | 2023-08-25 |
JPWO2022138191A1 (ja) | 2022-06-30 |
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