WO2013069340A1 - ステアリング装置 - Google Patents
ステアリング装置 Download PDFInfo
- Publication number
- WO2013069340A1 WO2013069340A1 PCT/JP2012/068332 JP2012068332W WO2013069340A1 WO 2013069340 A1 WO2013069340 A1 WO 2013069340A1 JP 2012068332 W JP2012068332 W JP 2012068332W WO 2013069340 A1 WO2013069340 A1 WO 2013069340A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle body
- capsule
- width direction
- bracket
- mounting bracket
- Prior art date
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Classifications
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- 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
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- 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
Definitions
- the present invention relates to a steering apparatus, and more particularly, to a steering apparatus in which a steering wheel is mounted at the time of a secondary collision and a steering column that supports the steering shaft moves to the front side of the vehicle body to absorb an impact load.
- a steering shaft on which a steering wheel is mounted and a steering column that supports the steering shaft are moved forward to absorb an impact load.
- Japanese Patent Application Laid-Open No. 2011-84133 and Japan There is a steering device described in Japanese Patent Laid-Open No. 2003-170837.
- the steering column of such a steering device includes an upper column and a lower column that are slidably coupled in the axial direction, and the upper column is supported on the vehicle body via a vehicle body mounting bracket.
- the vehicle body mounting bracket to which the upper column is attached is fixed to the vehicle body via the capsule, and is separated from the capsule by a predetermined impact force at the time of the secondary collision, and moves forward together with the upper column.
- a steering device having a structure in which a guide bracket for guiding the movement of the vehicle body mounting bracket to the front side is attached to the vehicle body so that the vehicle body mounting bracket smoothly moves to the front side in the case of a secondary collision. is there.
- a guide hole is formed in the guide bracket in parallel to the moving direction of the upper column, and a guide pin fixed to the vehicle body mounting bracket is guided by the guide hole and moves to the moving end on the front side. In this way, the guide pin is guided in the guide hole, so that the vehicle body mounting bracket smoothly moves forward.
- the guide bracket is attached to the vehicle body mounting bracket in a state before being mounted to the vehicle body, for example, during transportation. It is only supported by one guide pin. Therefore, even if the mounting position of the guide bracket with respect to the vehicle body mounting bracket is initially adjusted to a position where it can be mounted on the vehicle body, it is displaced due to shaking during transportation. That is, the guide bracket rotates with respect to the vehicle body mounting bracket around the guide pin. As a result, when the steering device is attached to the vehicle body, the position of the guide bracket needs to be adjusted again, resulting in a problem that it takes time for the attachment work.
- the rear side of the guide member that guides the vehicle body mounting bracket to the moving end on the front side of the vehicle body is engaged with the capsule.
- the guide member is prevented from falling off the capsule or being displaced from the capsule.
- the guide member only holds the capsule from the vertical direction of the vehicle body and the longitudinal direction of the vehicle body. As a result, the mounting position of the guide member with respect to the capsule may be distorted.
- the steering device described in Japanese Patent Application Laid-Open No. 2003-170837 has a plurality of engaging protrusions formed on the capsule so that the capsule does not fall off the vehicle body mounting bracket when the steering device is mounted on the vehicle body. ing.
- the steering device described in Japanese Patent Application Laid-Open No. 2003-170837 is such that when the steering device is mounted on the vehicle body, the capsule alone does not fall off the vehicle body mounting bracket. It does not have a function to prevent the mounting position of the guide bracket from going wrong.
- the guide pin fixed to the vehicle body mounting bracket is guided forward by the guide hole of the guide bracket.
- the present invention is not applied to a steering device that moves to the moving end on the side.
- An object of the present invention is to provide a steering device that prevents the guide bracket from rotating with respect to the vehicle body mounting bracket around the guide pin in a state before the vehicle body mounting bracket and the guide bracket are attached to the vehicle body.
- the present invention provides a steering shaft on which a steering wheel can be mounted at the rear end, a steering column that supports the steering shaft rotatably inside, and moves forward in a secondary collision, and supports the steering column.
- a vehicle body mounting bracket that collapses at the time of a secondary collision and moves forward together with the steering column, and is fixed to the vehicle body, and the vehicle body mounting bracket is attached to support the vehicle body mounting bracket to the vehicle body, and at the time of a secondary collision
- a steering apparatus having a guide mechanism for guiding the movement of the racket, comprising: a displacement prevention mechanism for preventing displacement of the fixed bracket attached to the vehicle body mounting bracket relative to the vehicle body mounting bracket before the vehicle body is attached. This is a steering device.
- the displacement prevention mechanism includes at least one capsule of the pair of capsules and an engaging portion that is formed on the fixed bracket and engages with the at least one capsule.
- a preferred steering device is
- the guide mechanism includes a guide pin fixed to the vehicle body mounting bracket and a guide pin formed on the fixed bracket and capable of sliding the guide pin in the moving direction of the vehicle body mounting bracket.
- the fixed bracket is attached to the vehicle body mounting bracket by engaging the guide pin with the guide hole, and the engaging portion engages with the at least one capsule.
- the engaging portion is formed to protrude downward from the vicinity of both ends in the vehicle width direction of the rear side end surface of the fixed bracket, and is formed on the rear side end surface of the capsule on the corresponding side.
- a pair of first engaging portions to be engaged and rear end portions of both end surfaces in the vehicle width direction of the fixed bracket are formed to protrude downward, respectively, on the side surface in the vehicle width direction of the capsule on the corresponding side.
- the steering apparatus preferably includes a pair of second engaging portions each having a side engaging portion that engages and a front end surface engaging portion that engages with the front end surface of the capsule.
- the engaging portion is formed to protrude downward from the vicinity of both ends in the vehicle width direction of the rear side end surface of the fixed bracket, and is formed on the rear side end surface of the capsule on the corresponding side.
- a pair of first engaging portions to be engaged and a rear end surface of the fixed bracket are formed to protrude downward from the inner portions in the vehicle width direction with respect to the pair of first engaging portions.
- a pair of second engaging portions having a side engaging portion that engages with the side surface in the vehicle width direction of the capsule and a front end surface engaging portion that engages with the front end surface of the capsule. It is a preferable steering device.
- the engaging portion is formed to protrude downward from the vicinity of both ends in the vehicle width direction of the rear side end surface of the fixed bracket, and is formed on the rear side end surface of the capsule on the corresponding side.
- a pair of first engaging portions to be engaged and a rear side end surface of the fixed bracket are formed to project downward from the vicinity of the first engaging portion of one of the pair of first engaging portions.
- a second engaging portion having a side surface engaging portion that engages with both side surfaces of the capsule in the vehicle width direction and a front side end surface engaging portion that engages with the front side end surface of the capsule. It is a preferable steering apparatus.
- the at least one capsule is formed with a protruding portion protruding upward from the upper side surface of the capsule, and the engaging portion is engaged with the protruding portion protruding upward.
- the steering device is preferably a hole.
- the engaging portion is formed on at least one lower surface of the lower surfaces of the fixing bracket in the vicinity of both ends in the vehicle width direction, and protrudes downward from the lower surface.
- the capsule is preferably formed with a hole for engaging the protruding portion protruding downward.
- the projecting portion projecting downward is formed in a cylindrical shape, and the inside of the cylindrical shape is a bolt hole through which a bolt for attaching the fixing bracket to the vehicle body is inserted.
- the hole is preferably a bolt hole into which a bolt for attaching the capsule to the vehicle body is inserted.
- the fixed bracket is formed of a single plate member, and the pair of second engaging portions are formed from rear end portions of end surfaces on both sides in the vehicle width direction of the plate member.
- a lower side extending portion extending downward, a side engaging portion extending forward along a side surface in the vehicle width direction of the capsule on a corresponding side from a lower end of the lower side extending portion, and a front side of the side engaging portion
- the steering apparatus preferably includes the front end surface engaging portion that is bent at a right angle from the side end portion and extends inward in the vehicle width direction.
- a preferred aspect of the present invention is a steering apparatus in which a chamfered portion is preferably formed between the rear side end face and the lower face of each capsule.
- the guide bracket does not rotate with respect to the vehicle body mounting bracket around the guide pin even before the vehicle body mounting bracket and the guide bracket are fixed to the vehicle body.
- the installation position will not go wrong.
- the work of fixing the vehicle body mounting bracket and the guide bracket to the vehicle body can be performed smoothly.
- FIG. 1 is a perspective view showing the entire steering apparatus of the present invention.
- FIG. 2 is a side view of the main part of the steering device according to the first embodiment of the present invention as viewed from the side.
- FIG. 3 is a plan view of FIG.
- FIG. 4 is a bottom view of FIG.
- FIG. 5 is an enlarged VV sectional view of FIG. 6 is an enlarged cross-sectional view taken along line VI-VI in FIG. 2, and is a cross-sectional view in which a part on the lower side is omitted.
- FIG. 7 is an enlarged cross-sectional view of a portion P in FIG.
- FIG. 8 is a perspective view showing a main part of the steering apparatus according to the first embodiment of the present invention, as seen from the upper right part on the rear side.
- FIG. 8 is a perspective view showing a main part of the steering apparatus according to the first embodiment of the present invention, as seen from the upper right part on the rear side.
- FIG. 9 is an exploded perspective view in which the vehicle body mounting bracket and the guide bracket of FIG. 8 are disassembled.
- FIG. 10 is an enlarged exploded perspective view of the vicinity of the vehicle body mounting bracket and the guide bracket of FIG.
- FIG. 11 is an enlarged perspective view showing a single guide bracket of FIG. 12A is a front view showing a single capsule according to the first embodiment of the present invention
- FIG. 12B is a plan view of FIG. 12A
- FIG. 12C is a bottom view of FIG. 12A
- FIG. 12D is a right side view of FIG. 13A is a bottom view showing an engagement state between the guide bracket and the capsule according to the first embodiment of the present invention
- FIG. 13B is a view taken along the arrow Q in FIG. 13A
- FIG. 13C shows the guide bracket before the capsule is engaged. It is Q arrow view.
- FIG. 14A is a bottom view showing an engaged state between the guide bracket and the capsule according to the second embodiment of the present invention
- FIG. 14B is a view taken along the arrow R in FIG. 14A.
- FIG. 15 is a perspective view of a guide bracket according to a third embodiment of the present invention.
- FIG. 16A is a plan view showing a developed shape of the guide bracket of the third embodiment
- FIG. 16B is a plan view showing a developed shape of the guide bracket of the first embodiment shown for comparison with FIG. 16A.
- Figure 17 is an enlarged exploded perspective view of the mounting bracket and the guide bracket near the steering apparatus according to a fourth embodiment.
- FIG. 14A is a bottom view showing an engaged state between the guide bracket and the capsule according to the second embodiment of the present invention
- FIG. 14B is a view taken along the arrow R in FIG. 14A.
- FIG. 15 is a perspective view of a
- FIG. 18 is an exploded perspective view in which the capsule and the guide bracket of the fourth embodiment are disassembled.
- FIG. 19 is a perspective view showing a main part of the steering apparatus according to the fifth embodiment, as viewed from the upper right part on the rear side of the vehicle body.
- FIG. 20 is an exploded perspective view in which the capsule and the guide bracket of the fifth embodiment are disassembled.
- 21A and 21B are longitudinal sectional views showing the capsule and the guide bracket of the fifth embodiment.
- FIG. 21A shows an assembled state
- FIG. 21B shows an exploded state.
- FIG. 22 is an exploded perspective view in which the capsule and the guide bracket of the sixth embodiment are disassembled.
- FIG. 23 is an exploded perspective view in which the capsule and the guide bracket of the seventh embodiment are disassembled.
- the direction related to the steering device is the same as the front-rear, left-right, and up-down directions of the vehicle body when attached to the vehicle body unless otherwise specified.
- the left-right direction is also called the vehicle width direction.
- the definition of the direction in each figure shown below refers to the state where the paper surface is viewed in a state where the reference numerals in each figure can be read in a normal direction.
- the diagonally lower left side of the page is the front side
- the diagonally upper right side of the page is the rear side
- the diagonally upper left side of the page is the right side
- the diagonally lower right side of the page is the left side.
- the left direction of the paper is the front side
- the right direction of the paper is the rear side
- the back direction of the paper is the right side
- the front side of the paper is the left side.
- the left direction of the drawing is the front side
- the right direction of the drawing is the rear side
- the upward direction of the drawing is the right side
- the downward direction of the drawing is the left side.
- the left direction of the drawing is the front side
- the right direction of the drawing is the rear side
- the downward direction of the drawing is the right side
- the upward direction of the drawing is the left side.
- the back direction of the paper is the front side
- the front side of the paper is the rear side
- the right direction of the paper is the right side
- the left direction of the paper is the left side.
- FIGS. 8 to 11, 15, 17, 17, 19, 20, 22, and 23 the upper right side of the drawing is the front side
- the lower left side of the drawing is the rear side
- the lower right side of the drawing Is the right side
- the upper left side of the drawing is the left side
- FIG. 18 FIG. 21A, and FIG. 21B
- the right direction on the paper is the front side
- the left direction on the paper is the rear side
- the front side on the paper is the right side
- the back direction on the paper is the left side.
- FIG. 1 is a perspective view showing the entire steering apparatus of the present invention.
- the steering apparatus according to the first embodiment of the present invention is a column assist type power steering apparatus.
- the column assist type rack and pinion type power steering device shown in FIG. 1 applies a steering assist force of an electric power assist mechanism 102 attached to a steering column assembly 105 to an output shaft 107 in order to reduce the operation force of the steering wheel 101.
- the rack of the rack and pinion type steering gear assembly 103 is reciprocated through the intermediate shaft 106 and the steering wheel is steered through the tie rod 104.
- FIG. 2 is a side view of the main part of the steering device according to the first embodiment of the present invention as seen from the side
- FIG. 3 is a plan view of FIG. 2
- FIG. 4 is a bottom view of FIG.
- FIG. 6 is an enlarged sectional view taken along the line VI-VI in FIG. 2, a part of the lower side is omitted
- FIG. 7 is an enlarged sectional view of a portion P in FIG.
- FIG. 8 is a perspective view showing a main part of the steering device according to the first embodiment of the present invention, a perspective view seen from the upper right part on the rear side
- FIG. 9 is an exploded view of the vehicle body mounting bracket and the guide bracket of FIG. FIG.
- FIG. 10 is an enlarged exploded perspective view in the vicinity of the vehicle body mounting bracket and the guide bracket in FIG. 9, and FIG. 11 is an enlarged perspective view showing the guide bracket alone in FIG. 12A is a front view showing a single capsule according to the first embodiment of the present invention
- FIG. 12B is a plan view of FIG. 12A
- FIG. 12C is a bottom view of FIG. 12A
- FIG. 12D is a right side view of FIG. 13A is a bottom view showing an engagement state between the guide bracket and the capsule according to the first embodiment of the present invention
- FIG. 13B is a view taken along the arrow Q in FIG. 13A
- FIG. 13C shows the guide bracket before the capsule is engaged. It is Q arrow view.
- the steering column assembly 105 includes an upper column 42 that is an outer column and a lower column 46 that is an inner column on the front side of the upper column 42.
- a steering shaft 43 on which a steering wheel 101 (see FIG. 1) is mounted at the rear end is rotatably supported by a cylindrical upper column 42.
- the upper column 42 is supported by the vehicle body mounting bracket 21.
- the vehicle body mounting bracket 21 is integrally formed, for example, by welding or the like at both ends of the center plate portion 21c and the lower surface of the center plate portion 21c in the vehicle width direction, and extends downward to face the vehicle width direction.
- the upper column 42 is sandwiched between the pair of side plates 21b and 21b and supported by the vehicle body mounting bracket 21.
- the vehicle body attachment bracket 21 is attached to the vehicle body via capsules 24, 24 described later.
- Tilt adjustment long holes 26 and 26 are formed in the side plates 21 b and 21 b of the vehicle body mounting bracket 21.
- the upper column 42 is guided by the tilt adjusting long holes 26 and 26 and can be tilt adjusted.
- the vehicle body mounting bracket 21 and the upper column 42 are made of a conductive material such as metal.
- the front side portion of the upper column 42 is fitted on the lower column 46 so as to be relatively movable in the axial direction. That is, it is fitted on the lower column 46 so as to be telescopically movable.
- a gear housing 47 of the electric power assist mechanism 102 is attached to the front side portion of the lower column 46. Forward end of the gear housing 47 is pivotally supported by the vehicle body 41 (see FIG. 5) around the tilt center axis 45. Since such a configuration, the lower column 46 is tilted adjustably supported on the vehicle body 41 via the gear housing 47.
- a slit 421 penetrating the inner peripheral surface of the upper column 42 is formed in the lower portion of the upper column 42.
- the upper column 42 includes telescopic adjustment long holes 422 and 422 formed so that the long axis direction extends in parallel to the central axis of the upper column 42.
- a tightening bolt 51 is inserted through the tilt adjusting long holes 26 and 26 and the telescopic adjusting long holes 422 and 422 in the vehicle width direction.
- An operation lever 52 is attached to the end of the tightening bolt 51.
- the movable cam 53 and the fixed cam 54 operated by the operation lever 52 constitute a cam lock mechanism.
- a cam surface is formed on each of the movable cam 53 and the fixed cam 54 so as to face each other, and a crest and a trough (not shown) are formed on the cam surface.
- the inner peripheral surface of the upper column 42 is reduced in diameter and released, and the upper column 42 is clamped / unclamped to the outer peripheral surface of the lower column 46.
- the telescopic position of 42 is adjusted.
- the output shaft 107 protruding forward from the gear housing 47 is connected to a pinion (not shown) that meshes with a rack shaft (not shown) of the steering gear assembly 103 via an intermediate shaft 106 (see FIG. 1). The operation is transmitted to the steering device.
- the vehicle body mounting bracket 21 is fixed to the vehicle body 41.
- the vehicle width direction dimensions of the flange portions 21a and 21a of the vehicle body mounting bracket 21 have a size that protrudes further to the outside in the vehicle width direction than the side plates 21b and 21b. That is, the flange portions 21a and 21a protrude to the left in FIG. 5 from the left side plate 21b in the vehicle width direction, and protrude to the right in FIG. 5 from the right side plate 21b in the vehicle width direction. And have. Cutouts 23 and 23 that are open to the rear side of the flange portions 21a and 21a are formed in the portions protruding leftward and rightward, respectively.
- the mounting structure of the vehicle body 41 and the vehicle body mounting bracket 21 is fitted into a pair of notches 23 and 23 formed in the flange portions 21a and 21a of the vehicle body mounting bracket 21 and both left and right edges of the notches 23 and 23.
- the capsules 24 and 24 are configured.
- the notches 23, 23 have a structure that is symmetrical in the vehicle width direction with respect to the central axis of the upper column 42. Further, the capsules 24 and 24 sandwich the flange portions 21a and 21a in the vertical direction.
- capsules 24 and 24 made of a conductive metal material such as a light alloy such as aluminum or zinc alloy die-casting are fitted in the notches 23 and 23.
- the capsules 24 and 24 are coupled to the flange portions 21 a and 21 a by four shear pins 24 a which are connecting means.
- the capsules 24 and 24 are fixed to the vehicle body 41 by bolts 22 inserted into bolt holes 24 b formed in the capsules 24.
- the widths of the notches 23 and 23 in the vehicle width direction are formed so as to gradually widen from the front side toward the rear side, and the vehicle body mounting bracket 21 is easily detached from the capsules 24 and 24 at the time of a secondary collision. Yes.
- the shear pin 24 a When the driver collides with the steering wheel 101 due to the impact at the time of the secondary collision and a strong impact force in the forward direction is applied, the shear pin 24 a is sheared, and the flange portions 21 a and 21 a of the vehicle body mounting bracket 21 are removed from the capsules 24 and 24. Leave and collapsing forward. Then, the upper column 42 collapsingly moves along the lower column 46 to the front side of the vehicle body, and absorbs impact energy at the time of collision. At this time, the capsules 24 and 24 remain fixed to the vehicle body.
- the collapse movement means that the steering column, the bracket, and the like move forward while absorbing the energy of the secondary collision while collapsing the energy absorbing member during the secondary collision.
- a guide bracket 61 is attached to the upper side of the central plate portion 21c and the flange portions 21a and 21a of the vehicle body mounting bracket 21.
- the guide bracket 61 is formed by bending a metal plate.
- the guide bracket 61 is disposed slightly above the center plate portion 21 c and the flange portions 21 a and 21 a of the vehicle body mounting bracket 21, and a guide portion 61 a formed at the center in the vehicle width direction extends along the lower column 46. It extends to the rear side in parallel and has a length that reaches the vicinity of the rear end of the central plate portion 21c.
- a guide hole 62 for guiding the movement of the vehicle body mounting bracket 21 is formed at the center position in the vehicle width direction of the guide portion 61a.
- flange portions 61b and 61b projecting outward from the guide portion 61a in the vehicle width direction are formed.
- the flange portions 61 b and 61 b are arranged slightly above the flange portions 21 a and 21 a of the vehicle body mounting bracket 21 and the vehicle width direction of the flange portions 21 a and 21 a of the vehicle body mounting bracket 21.
- the vehicle width direction dimension is slightly narrower than the dimension.
- Bolt holes 63 and 63 are formed in the flange portions 61b and 61b concentrically with the bolt holes 24b and 24b of the capsules 24 and 24, respectively.
- the bolts 22 and 22 are inserted into the bolt holes 24b and 24b formed in the capsules 24 and 24 and the bolt holes 63 and 63 formed in the flange portions 61b and 61b.
- the bracket 61 is fixed to the vehicle body 41.
- the guide hole 62 of the guide bracket 61 is formed to extend in parallel to the vertical plane passing through the central axis of the lower column 46, that is, in the front-rear direction. Further, as shown in FIGS. 5 and 7, a through hole 25 is formed in the center plate portion 21 c of the vehicle body mounting bracket 21 at the center position in the vehicle width direction.
- the guide pin 71 is inserted from the lower side through the through hole 25 and the guide hole 62, and the nut 72 is screwed into the male screw 711 at the upper end of the guide pin 71, thereby fixing the guide pin 71 to the central plate portion 21c.
- the guide pin 71 has a disk-shaped head portion 712 having a larger diameter than the male screw 711 and formed at the lower end of the male screw 711.
- the guide pin 71 is made of metal such as iron.
- gaps ⁇ 1 and ⁇ 2 reduce the friction between the nut 72 and the guide portion 61a, and the friction between the guide portion 61a and the central plate portion 21c of the vehicle body mounting bracket 21, and the guide pin 71 is guided by the guide hole 62 at the time of the secondary collision.
- the central plate portion 21c is provided so as to slide smoothly with respect to the guide portion 61a.
- the guide bracket 61 remains fixed to the vehicle body side together with the capsules 24, 24, holds the upper column 42 so as not to fall off due to the engagement between the guide pin 71 and the guide hole 62, and The guide pin 71 slides on the guide hole 62 to guide the collapse movement of the upper column 42.
- the guide bracket 61 Since the vehicle body mounting bracket 21 and the guide bracket 61 are configured as described above, when the guide bracket 61 is mounted on the central plate portion 21c of the vehicle body mounting bracket 21 and the guide pins 71 are fixed, the guide bracket 61 is fixed to the vehicle body mounting bracket 21. Has a backlash in the vertical direction due to the gap ⁇ 1 and the gap ⁇ 2. Therefore, in a state before the vehicle body mounting bracket 21 and the guide bracket 61 are fixed to the vehicle body 41 with the bolts 22, the guide bracket 61 rotates with respect to the vehicle body mounting bracket 21 around the guide pin 71, and the vehicle body mounting The mounting position of the guide bracket 61 with respect to the bracket 21 is incorrect.
- the steering device according to the present embodiment is configured to prevent such rotation of the guide bracket 61 with the guide pin 71 as the center. Hereinafter, a configuration for preventing the rotation will be described.
- the first engaging portions 64 and 64 and the second engaging portions 65 and 65 are provided on the rear side end surfaces 61d and 61d of the flange portions 61b and 61b of the guide bracket 61. And are formed.
- the pair of left and right first engaging portions 64, 64 are formed to protrude downward from the rear side end surfaces 61 d, 61 d and engage with the rear side end surfaces 24 d, 24 d of the capsules 24, 24.
- the pair of left and right second engaging portions 65, 65 are formed on the inner side in the vehicle width direction with respect to the first engaging portions 64, 64, and project downward from the rear end surfaces 61d, 61d to the lower side. , 651 are formed. Front-side extensions 652 and 652 extending forward are formed at the lower ends of the lower protrusions 651 and 651, and extend forward along the vehicle width direction inner side surfaces 24e and 24e of the capsules 24 and 24. There are slight gaps between the front extensions 652 and 652 and the inner side surfaces 24e and 24e of the capsules 24 and 24 in the vehicle width direction. This gap is for facilitating assembly when the guide bracket 61 is assembled to the vehicle body mounting bracket 21.
- the second engaging portions 65, 65 are formed in an L shape when viewed from the lower side.
- the vehicle width direction extensions 653 and 653 are engaged with the front side end surfaces 24f and 24f of the capsules 24 and 24, respectively.
- the capsule 24 has an upper surface 24c side protruding forward from the front side end face 24f, and a stepped portion is formed by the front side protruding part and the front side end face 24f.
- the vehicle width direction extensions 653 and 653 of the second engaging portions 65 and 65 are disposed at this stepped portion.
- the guide bracket 61 and the capsules 24, 24 are fixed in the vertical direction, the front-rear direction, and the vehicle width direction by the pair of left and right first engaging portions 64, 64 and the second engaging portions 65, 65.
- the upper surfaces 24c and 24c of the capsules 24 and 24 are the lower surfaces 61c and 61c of the flange portions 61b and 61b of the guide bracket 61 (FIGS. 5 and 6).
- the first engagement portions 64 and 64 and the second engagement portions 65 and 65 engage with the capsules 24 and 24.
- a slight gap is interposed between the front side extensions 652 and 652 and the vehicle width direction inner side surfaces 24e and 24e of the capsules 24 and 24, but when the guide bracket 61 rotates even a little, The vehicle width direction inner side surfaces 24e and 24e of the capsules 24 and 24 immediately contact and engage with the front side extensions 652 and 652, and the rotation of the guide bracket 61 is prevented.
- each capsule 24 according to the first embodiment of the present invention has a chamfered portion 24i between a rear side end surface 24d and a lower surface 24h of the capsule 24.
- the chamfered portion 24 i is formed to facilitate assembly when the guide bracket 61 is assembled to the vehicle body mounting bracket 21.
- Guide bracket 61 is assembled from the rear side to the vehicle body mounting bracket 21 in a state of assembled capsules 24, 24.
- the vehicle width direction extensions 653 and 653 of the second engaging portions 65 and 65 pass the lower surface 24h and 24h side from the rear side end surfaces 24d and 24d side of the capsules 24 and 24, and the front side end surface 24f and It will be engaged with 24f.
- the front side extensions 652 and 652 are disposed along the vehicle width direction inner side surfaces 24e and 24e of the capsules 24 and 24, respectively.
- Chamfered portions 24i and 24i are formed on the rear end surfaces 24d and 24d when the vehicle width direction extending portions 653 and 653 are inserted from the rear end surfaces 24d and 24d of the capsules 24 and 24 to the lower surfaces 24h and 24h. And you can go through smoothly. As a result, the efficiency of assembly work is improved.
- the engaging portions 65 and 65 are prevented from being damaged. , Can improve the yield.
- the second engaging portions 65 and 65 engage with the vehicle width direction inner side surfaces 24e and 24e and the front side end surfaces 24f and 24f of the capsules 24 and 24, the chamfered portions 24i and 24i are provided on the capsule 24. Even if the guide bracket 61 is formed, the guide bracket 61 and the capsules 24 and 24 can be fixed.
- the guide bracket 61 rotates relative to the vehicle body mounting bracket 21 around the guide pin 71,
- the mounting position of the guide bracket 61 does not change with respect to the vehicle body mounting bracket 21. Therefore, it is possible to smoothly perform the work of fixing the vehicle body mounting bracket 21 and the guide bracket 61 to the vehicle body 41 with the bolts 22. That is, in the first embodiment, the pair of left and right first engaging portions 64 and 64 and the pair of left and right second engaging portions 65 and 65 constitute an engaging portion that engages with the capsules 24 and 24.
- the engaging portion and the capsules 24 and 24 constitute a displacement prevention mechanism that prevents the guide bracket 61 from rotating or moving with respect to the vehicle body mounting bracket 21 around the guide pin 71.
- FIG. 14A is a bottom view showing the engagement state of the guide bracket and the capsule according to the second embodiment of the present invention
- FIG. 14B is a view taken along the arrow R in FIG. 14A.
- the second embodiment is a modification of the second engaging portion of the first embodiment, and is an example in which the second engaging portion is engaged with one capsule of a pair of left and right capsules.
- first engagement portions 64 and 64 are formed on the rear side end surfaces 61d and 61d of the flange portions 61b and 61b of the guide bracket 61, as in the first embodiment.
- the pair of left and right first engaging portions 64, 64 are formed to protrude downward from the rear side end surfaces 61 d, 61 d and engage with the rear side end surfaces 24 d, 24 d of the capsules 24, 24.
- a second engaging portion 66 having a shape different from that of the first embodiment is formed on the rear end surface 61d of one flange portion 61b.
- a second engagement portion 66 is formed on the flange portion 61b on the lower side in FIG. 14A, that is, on the right side in the vehicle width direction.
- the second engaging portion 66 is formed in the vicinity of the lower first engaging portion 64 in FIG. 14A, and a lower protruding portion 661 protruding downward from the rear end face 61d is formed.
- the width W1 in the vehicle width direction of the downward projecting portion 661 is formed wider than the width W2 of the capsule 24 in the vehicle width direction.
- forward extensions 662 and 662 extending forward are formed at both ends of the lower protrusion 661 in the vehicle width direction.
- the front extension 662 on the inner side in the vehicle width direction extends forward along the inner side surface 24e of the capsule 24 in the vehicle width direction. Further, the front side extension 662 on the outer side in the vehicle width direction extends forward along the outer side surface 24g of the capsule 24 in the vehicle width direction.
- a slight gap is interposed between the front side extension 662 on the inner side in the vehicle width direction and the inner side surface 24e of the capsule 24 in the vehicle width direction. Further, a slight gap is interposed between the front side extension 662 on the outer side in the vehicle width direction and the outer side surface 24g of the capsule 24 in the vehicle width direction.
- a vehicle width direction extension portion 663 extending in the vehicle width direction is formed at the front end of the front side extension portions 662 and 662, and the front end of the front side extension portions 662 and 662 is connected to the vehicle width direction extension portion 663.
- the capsule 24 is engaged with the front side end face 24f.
- the second engaging portion 66 is formed in a rectangular frame shape when viewed from the lower side, and surrounds the entire circumference of the capsule 24 on the lower side of FIG. 14A.
- the guide bracket 61 and the capsules 24, 24 are fixed in the vertical direction, the front-rear direction, and the vehicle width direction by the pair of left and right first engaging portions 64, 64 and one second engaging portion 66. Is done.
- the upper surfaces 24c and 24c of the capsules 24 and 24 are the lower surfaces 61c and 61c of the flange portions 61b and 61b of the guide bracket 61 (FIGS. 5 and 6).
- the first engaging portions 64 and 64 are engaged with the capsules 24 and 24.
- the second engaging portion 66 engages with one capsule 24.
- the pair of left and right first engaging portions 64, 64 and one second engaging portion 66 constitute an engaging portion that engages with the capsules 24, 24, and
- the joint portion and the capsules 24 and 24 constitute a displacement prevention mechanism that prevents the guide bracket 61 from rotating or moving with respect to the vehicle body mounting bracket 21 around the guide pin 71.
- FIG. 15 is a perspective view of a guide bracket according to the third embodiment of the present invention.
- the third embodiment is a modification of the second engagement portion of the first embodiment.
- first engagement portions 64 and 64 are formed on the rear side end surfaces 61 d and 61 d of the flange portions 61 b and 61 b of the guide bracket 61 as in the first embodiment.
- the pair of left and right first engaging portions 64, 64 are formed to protrude downward from the rear side end surfaces 61 d, 61 d and engage with the rear side end surfaces 24 d, 24 d of the capsules 24, 24.
- a pair of left and right second engaging portions 67, 67 are formed as in the first embodiment.
- Rear side projecting portions 670 and 670 projecting rearward are formed at the vehicle width direction side end portions of the rear side end surfaces 61d and 61d of the flange portions 61b and 61b.
- a lower side extension portion extending downward 671 and 671 are formed on the rear side end of the vehicle width direction outer surface of the rear side protrusions 670, 670, that is, on the rear side end of the vehicle width direction outer end surfaces 61e, 61e of the flange portions 61b, 61b.
- Front-side extensions 672 and 672 extending forward are formed at the lower ends of the lower-side extensions 671 and 671.
- the front-side extensions 672 and 672 are disposed to extend forward along the vehicle width direction outer side surfaces 24g and 24g of the capsules 24 and 24, respectively.
- a slight gap is interposed between the front side extensions 672 and 672 and the outer surfaces 24g and 24g of the capsules 24 and 24 in the vehicle width direction. This gap is for facilitating assembly when the guide bracket 61 is assembled to the vehicle body mounting bracket 21.
- vehicle width direction extensions 673, 673 are formed that are bent at right angles from the front side extensions 672, 672 and extend inward in the vehicle width direction. Accordingly, the second engaging portions 67 and 67 are formed in an L shape opposite to that of the first embodiment when viewed from the lower side.
- the vehicle width direction extensions 673 and 673 engage with the front end surfaces 24f and 24f of the capsules 24 and 24, respectively.
- the guide bracket 61 and the capsules 24, 24 are fixed in the vertical direction, the front-rear direction, and the vehicle width direction by the pair of left and right first engaging portions 64, 64 and the second engaging portions 67, 67. Is done.
- the upper surfaces 24c and 24c of the capsules 24 and 24 are the lower surfaces 61c and 61c of the flange portions 61b and 61b of the guide bracket 61 (FIGS. 5 and 6).
- the first engaging portions 64 and 64 and the second engaging portions 67 and 67 engage with the capsules 24 and 24.
- the guide bracket 61 rotates even a little, the capsule 24 24, 24g, 24g in the vehicle width direction immediately contact and engage with the front side extensions 672, 672, and the rotation of the guide bracket 61 is prevented.
- the guide bracket 61 rotates relative to the vehicle body mounting bracket 21 around the guide pin 71, and because it does not move in the vehicle width direction, is never mad mounting position of the guide bracket 61 relative to the mounting bracket 21. Therefore, it is possible to smoothly perform the work of fixing the vehicle body mounting bracket 21 and the guide bracket 61 to the vehicle body 41 with the bolts 22. That is, in the third embodiment, the pair of left and right first engaging portions 64 and 64 and the pair of left and right second engaging portions 67 and 67 constitute an engaging portion that engages with the capsules 24 and 24. The engaging portion and the capsules 24 and 24 constitute a displacement prevention mechanism that prevents the guide bracket 61 from rotating or moving with respect to the vehicle body mounting bracket 21 around the guide pin 71.
- FIG. 16A is a plan view showing a developed shape of the guide bracket of the third embodiment
- FIG. 16B is a plan view showing a developed shape of the guide bracket of the first embodiment shown for comparison with FIG. 16A.
- the left side of the drawing is the front side
- the right side of the drawing is the rear side
- the vertical direction on the paper is the vehicle width direction.
- the guide bracket in each of the first to third embodiments is formed by punching a guide bracket blank of a predetermined shape from a single metal plate material in a pressing process and bending the guide bracket blank. That is, FIG. 16A shows the shape of the guide bracket blank 813 of the third embodiment.
- the guide bracket blank 813 is formed with rear side protruding portions 670 and 670 protruding rearward at the vehicle width direction side end portions of the rear side end surfaces 61d and 61d of the flange portions 61b and 61b.
- the rear side protrusions 670 and 670 are disposed on the rear side ends of the outer side surfaces in the vehicle width direction, that is, the rear side end portions of the outer side end surfaces 61e and 61e in the vehicle width direction of the flange portions 61b and 61b.
- Lower extension portions 671 and 671 are formed to extend outward in the vehicle width direction.
- Front-side extensions 672 and 672 to be disposed along the vehicle-width-direction outer surfaces 24g and 24g of the capsules 24 and 24 at the outer ends in the vehicle-width direction of the lower-side extensions 671 and 671, and the capsule 24 24, the vehicle width direction extending portions 673 and 673 that are engaged with the front end surfaces 24f and 24f of the vehicle 24 are continuously extended and formed to the front side.
- the guide bracket blank 811 of the first embodiment has a shape shown in FIG. 16B. That is, on the rear side end surfaces 61d and 61d of the flange portions 61b and 61b, the lower side protruding portions 651 and 651 that are arranged to protrude downward, and the inner side surfaces 24e and 24e of the capsules 24 and 24 in the vehicle width direction.
- the front side extension portions 652 and 652 to be disposed along the front side and the back side are continuously extended to the rear side.
- Vehicle width direction extensions 653 and 653 which are engaged with the front side end surfaces 24f and 24f of the capsules 24 and 24 are formed at the rear side ends of the front side extensions 652 and 652 so as to extend outward in the vehicle width direction. Has been.
- the length dimension in the front-rear direction of the guide bracket blank 813 of the third embodiment is shorter than the length dimension in the front-rear direction of the guide bracket blank 811 of the first embodiment. . That is, the bent portions 67, 67 or 65, 65 are formed to extend rearward in the guide bracket blank 811, whereas in the guide bracket blank 813, the flange portion is formed. It is formed in the vehicle width direction outer side vicinity of 61b, 61b in parallel with the vehicle width direction outer side end surfaces 61e, 61e of the flange portions 61b, 61b.
- the third embodiment can improve the material efficiency in the manufacturing process of the guide bracket 61 and reduce the manufacturing cost in addition to the same effects as the first embodiment.
- the engagement surface of the second engagement portions 67 and 67 with the capsules 24 and 24 is not the press cutting surface when the guide bracket blank 813 is formed, but the surface of a plate material as a material. More specifically, front side extensions 672, 672 that engage with the vehicle width direction outer side surfaces 24g, 24g of the capsules 24, 24, and a vehicle width direction extension part that engages with the front side end surfaces 24f, 24f of the capsules 24, 24.
- Each of the engagement surfaces 673 and 673 is a surface of the plate material.
- the thickness of the plate material is a material, it is possible to control the elastic force of the second engagement portion 67.
- the engaging surfaces of the second engaging portions 67 and 67 with the capsules 24 and 24 are formed such that the vertical width dimension is larger than the thickness dimension of the plate material. That is, the front-side extensions 672 and 672 and the vehicle width direction extensions 673 and 673 are engaged with the capsules 24 and 24 at the wider surface.
- the wide surface is arranged in parallel with the vertical direction. Therefore, the arrangement space of the second engaging portions 67 and 67 can be reduced.
- FIG. 17 is an enlarged exploded perspective view of the vicinity of the vehicle body mounting bracket and the guide bracket of the steering device according to the present embodiment.
- FIG. 18 is a longitudinal sectional view showing the capsule and the guide bracket of the present embodiment, and is a longitudinal sectional view showing an exploded state.
- cylindrical engagement protrusions 27 and 27 are formed so as to protrude upward.
- the flange portions 61b and 61b of the guide bracket 61 are formed with circular engagement holes 84 and 84 into which the engagement protrusions 27 and 27 are fitted.
- the height H1 of the engagement protrusions 27, 27 in the vertical direction of the vehicle body is set to be larger than the total value of the gap ⁇ 1 and the gap ⁇ 2 (see FIG. 7) described in the first embodiment.
- the engagement protrusion 27 may be provided on one of the left and right capsules 24, 24. Moreover, since the engaging protrusion 27 is integrally cast with the capsule 24, the manufacturing cost can be reduced.
- the engagement protrusions 27 and 27 are formed on the inner side in the vehicle width direction than the position of FIG. 17, and the distance in the vehicle width direction between the guide pin 71 and the engagement protrusions 27 and 27 is shortened. It is preferable to do this.
- the bolt holes 24b the engaging projections 27 and 27 in the vehicle width direction inner 24b of the capsule 24, 24.
- the vertical displacement of the engagement holes 84 and 84 with respect to the mating protrusions 27 and 27 is reduced. If it does so, even if the height H1 of the up-down direction of the engagement protrusions 27 and 27 is made low, the fitting state of the engagement protrusions 27 and 27 and the engagement holes 64 and 64 can be maintained.
- the guide bracket 61 rotates relative to the vehicle body mounting bracket 21 around the guide pins 71 or moves in the front-rear direction. Don't do it. Therefore, the mounting position of the guide bracket 61 with respect to the vehicle body mounting bracket 21 does not go wrong. As a result, it is possible to smoothly perform the work of fixing the vehicle body mounting bracket 21 and the guide bracket 61 to the vehicle body 41 with the bolts 22.
- the engagement holes 84 and 84 of the guide bracket 61 constitute an engagement portion that engages with the capsules 24 and 24, and the engagement projection 27 of the capsules 24 and 24, 27 constitutes a displacement prevention mechanism that prevents the guide bracket 61 from rotating or moving with respect to the vehicle body mounting bracket 21 around the guide pin 71.
- FIG. 19 is a perspective view showing a main part of a steering apparatus according to a fifth embodiment of the present invention, as seen from the upper right part on the rear side.
- FIG. 20 is an exploded perspective view showing the capsule and the guide bracket according to the fifth embodiment of the present invention.
- 21A and 21B are longitudinal sectional views showing a capsule and a guide bracket according to a fifth embodiment of the present invention, FIG. 21A is a longitudinal sectional view showing an assembled state, and FIG. 21B is a longitudinal sectional view showing an exploded state. .
- the fifth embodiment is a modification of the displacement prevention mechanism of the fourth embodiment, wherein an engaging protrusion that protrudes downward is formed in the bolt hole of the guide bracket, and this engaging protrusion is fitted in the bolt hole of the capsule. This is an example.
- the bolt holes 63 and 63 of the flange portions 61b and 61b of the guide bracket 61 have hollow cylindrical shapes protruding downward from the lower surfaces 61c and 61c of the flange portions 61b and 61b.
- Engagement protrusions 85 and 85 are formed.
- the engaging projections 85 and 85 are formed by projecting the inner peripheral surfaces of the bolt holes 63 and 63 downward when the bolt holes 63 and 63 are formed in the flange portions 61b and 61b. That is, the inner peripheral side of the engagement protrusions 85 and 85 constitutes the bolt holes 63 and 63.
- the vertical height H2 of the engaging protrusions 85, 85 is set to be larger than the total value of the gap ⁇ 1 and the gap ⁇ 2 described in the first embodiment.
- the engagement protrusion 85 should just be in one of the left and right bolt holes 63 and 63.
- the guide bracket 61 rotates relative to the vehicle body mounting bracket 21 around the guide pins 71 or moves in the front-rear direction. since no or, is never mad mounting position of the guide bracket 61 relative to the mounting bracket 21. That is, in the fifth embodiment, the engagement protrusions 85 and 85 of the flange portions 61 b and 61 b constitute an engagement portion that engages with the capsules 24 and 24, and the engagement portion and the bolt hole 24 b of the capsules 24 and 24. 24b constitutes a displacement prevention mechanism for preventing the guide bracket 61 from rotating or moving with respect to the vehicle body mounting bracket 21 around the guide pin 71.
- FIG. 22 is an exploded perspective view showing the capsule and the guide bracket according to the sixth embodiment of the present invention.
- 6th Embodiment is a modification of the displacement prevention mechanism of 4th Embodiment, Comprising: The engagement protrusion which protrudes below is formed in a guide bracket, This engagement protrusion is internally fitted in the engagement hole formed in the capsule. This is an example.
- rectangular plate-like engagement protrusions 86 and 86 are formed on the flange portions 61b and 61b of the guide bracket 61 on the rear side of the bolt holes 63 and 63, respectively.
- the engaging projections 86 and 86 are formed by cutting out the flange portions 61b and 61b into a rectangular shape and projecting the rectangular portion downward.
- rectangular engagement holes 24j and 24j into which the engagement protrusions 86 and 86 are fitted are formed in the upper surfaces 24c and 24c of the capsules 24 and 24, respectively.
- the vertical heights of the engagement protrusions 86 and 86 are set to be larger than the total value of the gap ⁇ 1 and the gap ⁇ 2 described in the first embodiment.
- the engagement protrusion 86 should just exist in one of the left and right flange parts 61b and 61b.
- the guide bracket 61 rotates relative to the vehicle body mounting bracket 21 around the guide pins 71 or moves in the front-rear direction. since no or, is never mad mounting position of the guide bracket 61 relative to the mounting bracket 21. That is, in the sixth embodiment, the engagement protrusions 86, 86 of the flange portions 61b, 61b constitute an engagement portion that engages with the capsules 24, 24, and the engagement holes and the engagement holes of the capsules 24, 24 24j and 24j constitute a displacement prevention mechanism for preventing the guide bracket 61 from rotating or moving with respect to the vehicle body mounting bracket 21 around the guide pin 71.
- FIG. 23 is an exploded perspective view showing a capsule and a guide bracket according to a seventh embodiment of the present invention.
- 7th Embodiment is a modification of the displacement prevention mechanism of 4th Embodiment,
- the edge part of the vehicle width direction of a guide bracket is bend
- bent portions 87 and 87 are formed in the flange portions 61b and 61b of the guide bracket 61. As shown in FIG.
- the bent portions 87, 87 are formed by bending the end portions of the flange portions 61b, 61b in the vehicle width direction downward.
- the capsules 24 and 24 have vehicle width direction outer side surfaces 24g and 24g engaged with the bent portions 87 and 87 at the ends of the capsules 24 and 24 in the vehicle width direction.
- the height H3 in the vertical direction of the bent portions 87, 87 is set to be larger than the total value of the gap ⁇ 1 and the gap ⁇ 2 described in the first embodiment.
- the bending part 87 should just exist in one of the left and right flange parts 61b and 61b.
- the guide bracket 61 does not rotate relative to the vehicle body mounting bracket 21 around the guide pin 71.
- the mounting position of the guide bracket 61 does not go wrong. That is, in the seventh embodiment, the bent portions 87 and 87 of the flange portions 61b and 61b constitute an engaging portion that engages with the capsules 24 and 24, and the engaging portion and the capsules 24 and 24 are outside the vehicle width direction.
- the side surfaces 24g and 24g constitute a displacement prevention mechanism that prevents the guide bracket 61 from rotating or moving with respect to the vehicle body mounting bracket 21 around the guide pin 71.
- the present invention is applied to a tilt / telescopic type steering apparatus that adjusts both the tilt position and the telescopic position of the steering column.
- the present invention may be applied to a device, a telescopic steering device, or a steering device in which neither a tilt position nor a telescopic position can be adjusted.
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Abstract
Description
図1は本発明のステアリング装置の全体を示す斜視図である。図1に示すように、本発明の第1実施形態に係るステアリング装置は、コラムアシスト型のパワーステアリング装置である。図1に示すコラムアシスト型ラックピニオン式パワーステアリング装置は、ステアリングホイール101の操作力を軽減するために、ステアリングコラムアッセンブリ105に取付けた電動パワーアシスト機構102の操舵補助力を出力軸107に付与し、中間シャフト106を介して、ラックピニオン式のステアリングギヤアッセンブリ103のラックを往復移動させ、タイロッド104を介して舵輪を転舵する方式のパワーステアリング装置である。
次に本発明の第2実施形態について説明する。図14Aは本発明の第2実施形態の案内ブラケットとカプセルの係合状態を示す下面図、図14Bは図14AのR矢視図である。以下の説明では、上記第1実施形態と異なる構造部分についてのみ説明し、重複する説明は省略する。また、同一部品には同一番号を付して説明する。第2実施形態は第1実施形態の第2の係合部の変形例であって、左右一対のカプセルのうちの一方のカプセルに第2の係合部を係合させた例である。
次に本発明の第3実施形態について説明する。図15は本発明の第3実施形態に係る案内ブラケットの斜視図である。以下の説明では、上記第1実施形態と異なる構造部分についてのみ説明し、重複する説明は省略する。また、同一部品には同一番号を付して説明する。第3実施形態は第1実施形態の第2の係合部の変形例である。
次に本発明の第4実施形態について説明する。以下の説明では、上記第1~第3実施形態と異なる構造部分についてのみ説明し、重複する説明は省略する。また、同一部品には同一番号を付して説明する。第4実施形態は、案内ブラケットの変位防止機構の構成が上記第1~第3実施形態とは異なっている。図17は、本実施形態に係るステアリング装置の車体取付けブラケットおよび案内ブラケット近傍の拡大分解斜視図である。また、図18は本実施形態のカプセルと案内ブラケットとを示す縦断面図であり、分解状態を示す縦断面図である。
次に本発明の第5実施形態について説明する。図19は本発明の第5実施形態に係るステアリング装置の要部を示す斜視図であり、後方側の右上部から見た斜視図である。図20は本発明の第5実施形態のカプセルと案内ブラケットとを示す分解斜視図である。図21A,Bは本発明の第5実施形態のカプセルと案内ブラケットとを示す縦断面図であり、図21Aは組付け状態を示す縦断面図、図21Bは分解状態を示す縦断面図である。
次に本発明の第6実施形態について説明する。図22は本発明の第6実施形態のカプセルと案内ブラケットとを示す分解斜視図である。以下の説明では、上記実施形態と異なる構造部分についてのみ説明し、重複する説明は省略する。また、同一部品には同一番号を付して説明する。第6実施形態は第4実施形態の変位防止機構の変形例であって、案内ブラケットに下方側に突出する係合突起を形成し、この係合突起をカプセルに形成した係合孔に内嵌した例である。
次に本発明の第7実施形態について説明する。図23は本発明の第7実施形態のカプセルと案内ブラケットとを示す分解斜視図である。以下の説明では、上記実施形態と異なる構造部分についてのみ説明し、重複する説明は省略する。また、同一部品には同一番号を付して説明する。第7実施形態は第4実施形態の変位防止機構の変形例であって、案内ブラケットの車幅方向の端部を下方側に折り曲げて折り曲げ部を形成し、この折り曲げ部をカプセルの車幅方向の端部に形成した外側面に係合した例である。
Claims (15)
- 後端部にステアリングホイールを装着可能なステアリングシャフトと、
内側に上記ステアリングシャフトを回転可能に支持し、二次衝突時に前方へ移動するステアリングコラムと、
上記ステアリングコラムを支持し、二次衝突時にコラプスして上記ステアリングコラムとともに前方へ移動する車体取付けブラケットと、
車体に固定され、上記車体取付けブラケットが取付けられて該車体取付けブラケットを車体に支持するとともに、二次衝突時に所定の衝撃エネルギーを吸収して上記車体取付けブラケットを車体から離脱させるための車幅方向に配置された一対のカプセルと、
上記車体取付けブラケットに取付けられて上記車体に固定され、二次衝突時に車体に残存する固定ブラケットと、
二次衝突時に上記車体取付けブラケットの上記移動を案内する案内機構とを備えたステアリング装置において、
上記車体取付けブラケットに取付けられた上記固定ブラケットの、車体取付け前における上記車体取付けブラケットに対する変位を防止するための変位防止機構を備えたこと
を特徴とするステアリング装置。 - 上記変位防止機構は、上記一対のカプセルのうち少なくとも一方のカプセルと、上記固定ブラケットに形成され上記少なくとも一方のカプセルに係合する係合部とであること
を特徴とする請求項1に記載のステアリング装置。 - 上記案内機構は、上記車体取付けブラケットに固定して設けられた案内ピンと、上記固定ブラケットに形成され上記案内ピンを上記車体取付けブラケットの上記移動方向に摺動可能に係合する案内孔とからなり、上記固定ブラケットは上記案内孔に上記案内ピンが係合することで上記車体取付けブラケットに取付けられ、
上記係合部は、上記少なくとも一方のカプセルに係合することで上記固定ブラケットの上記車体取付けブラケットに対する車体前後方向の変位と車幅方向の変位と上記案内ピンを中心とする回転方向の変位とを防止すること
を特徴とする請求項2に記載のステアリング装置。 - 上記係合部は、上記固定ブラケットの後方側端面の車幅方向両端近傍部からそれぞれ下方側に突出して形成され、対応する側の上記カプセルの後方側端面に係合する一対の第1の係合部と、
上記固定ブラケットの車幅方向の両端面の後方側端部からそれぞれ下方側に突出して形成され、対応する側の上記カプセルの車幅方向側面に係合する側面係合部と上記カプセルの前方側端面に係合する前方側端面係合部とを有する一対の第2の係合部とを備えたこと
を特徴とする請求項2または3に記載のステアリング装置。 - 上記係合部は、上記固定ブラケットの後方側端面の車幅方向両端近傍部からそれぞれ下方側に突出して形成され、対応する側の上記カプセルの後方側端面に係合する一対の第1の係合部と、
上記固定ブラケットの後方側端面の、上記一対の第1係合部よりも車幅方向で内側の部分からそれぞれ下方側に突出して形成され、対応する側の上記カプセルの車幅方向側面に係合する側面係合部と上記カプセルの前方側端面に係合する前方側端面係合部とを有する一対の第2の係合部とを備えたこと
を特徴とする請求項2または3に記載のステアリング装置。 - 上記係合部は、上記固定ブラケットの後方側端面の車幅方向両端近傍部からそれぞれ下方側に突出して形成され、対応する側の上記カプセルの後方側端面に係合する一対の第1の係合部と、
上記固定ブラケットの後方側端面の、上記一対の第1係合部の何れか一方の第1係合部の近傍部から下方側に突出して形成され、対応する上記カプセルの車幅方向両側面に係合する側面係合部と上記カプセルの前方側端面に係合する前方側端面係合部とを有する一つの第2の係合部とを備えたこと
を特徴とする請求項2または3に記載のステアリング装置。 - 上記少なくとも一方のカプセルには、該カプセルの上側面よりも上方に突出した突出部が形成され、
上記係合部は、上記上方に突出した突出部と係合する孔であること
を特徴とする請求項2または3に記載のステアリング装置。 - 上記係合部は、上記固定ブラケットの車幅方向両端近傍部の下側面のうち少なくとも一方の下側面に形成され、該下側面よりも下方に突出した突出部であり、
上記カプセルには上記下方に突出した突出部が係合する孔が形成されていること
を特徴とする請求項2または3に記載のステアリング装置。 - 請求項8に記載のステアリング装置において、
上記下方に突出した突出部は円筒形状に形成され、該円筒形状の内側は上記固定ブラケットを車体に取付けるためのボルトが挿通されるボルト孔であり、
上記カプセルの孔は該カプセルを車体に取付けるためのボルトが挿通されるボルト孔であること
を特徴とするステアリング装置。 - 請求項4に記載のステアリング装置において、
上記固定ブラケットは一枚の板部材からなり、上記一対の第2の係合部は、上記板部材の車幅方向で両側となる端面の後方側端部からそれぞれ下方に延びる下方側延長部と、上記下方側延長部の下端から対応する側の上記カプセルの車幅方向側面に沿って前方側に延びる上記側面係合部と、上記側面係合部の前方側端部から直角に折れ曲がり、車幅方向内側に延びる上記前方側端面係合部とからなること
を特徴とするステアリング装置。 - 上記各カプセルの後方側端面と下面との間には、面取り部が形成されていること
を特徴とする請求項3に記載のステアリング装置。 - 上記各カプセルの後方側端面と下面との間には、面取り部が形成されていること
を特徴とする請求項4に記載のステアリング装置。 - 上記各カプセルの後方側端面と下面との間には、面取り部が形成されていること
を特徴とする請求項5に記載のステアリング装置。 - 上記各カプセルの後方側端面と下面との間には、面取り部が形成されていること
を特徴とする請求項6に記載のステアリング装置。 - 上記各カプセルの後方側端面と下面との間には、面取り部が形成されていること
を特徴とする請求項7に記載のステアリング装置。
Priority Applications (4)
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JP2012533168A JP5626350B2 (ja) | 2011-11-07 | 2012-07-19 | ステアリング装置 |
EP12808669.1A EP2778016B1 (en) | 2011-11-07 | 2012-07-19 | Steering apparatus |
CN201280001009.3A CN103201159B (zh) | 2011-11-07 | 2012-07-19 | 转向装置 |
US13/810,691 US8955883B2 (en) | 2011-11-07 | 2012-07-19 | Steering apparatus |
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JP2011244029 | 2011-11-07 | ||
JP2011-244029 | 2011-11-07 | ||
JP2011250000 | 2011-11-15 | ||
JP2011-250000 | 2011-11-15 | ||
JP2012092977 | 2012-04-16 | ||
JP2012-092977 | 2012-04-16 |
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WO2013069340A1 true WO2013069340A1 (ja) | 2013-05-16 |
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PCT/JP2012/068332 WO2013069340A1 (ja) | 2011-11-07 | 2012-07-19 | ステアリング装置 |
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US (1) | US8955883B2 (ja) |
EP (1) | EP2778016B1 (ja) |
JP (1) | JP5626350B2 (ja) |
CN (1) | CN103201159B (ja) |
WO (1) | WO2013069340A1 (ja) |
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JP6621359B2 (ja) * | 2016-03-31 | 2019-12-18 | 富士機工株式会社 | ステアリングコラム装置 |
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JPWO2013069340A1 (ja) | 2015-04-02 |
CN103201159B (zh) | 2015-09-16 |
US20140182409A1 (en) | 2014-07-03 |
EP2778016A1 (en) | 2014-09-17 |
US8955883B2 (en) | 2015-02-17 |
JP5626350B2 (ja) | 2014-11-19 |
EP2778016B1 (en) | 2018-04-18 |
EP2778016A4 (en) | 2016-08-03 |
CN103201159A (zh) | 2013-07-10 |
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