WO2013164956A1 - Structure d'élément de direction - Google Patents

Structure d'élément de direction Download PDF

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Publication number
WO2013164956A1
WO2013164956A1 PCT/JP2013/061573 JP2013061573W WO2013164956A1 WO 2013164956 A1 WO2013164956 A1 WO 2013164956A1 JP 2013061573 W JP2013061573 W JP 2013061573W WO 2013164956 A1 WO2013164956 A1 WO 2013164956A1
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WO
WIPO (PCT)
Prior art keywords
steering member
vehicle
portions
column
width direction
Prior art date
Application number
PCT/JP2013/061573
Other languages
English (en)
Japanese (ja)
Inventor
智 古沢
英明 池谷
雅人 安部
Original Assignee
日産自動車株式会社
カルソニックカンセイ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 日産自動車株式会社, カルソニックカンセイ株式会社 filed Critical 日産自動車株式会社
Publication of WO2013164956A1 publication Critical patent/WO2013164956A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/14—Dashboards as superstructure sub-units
    • B62D25/145—Dashboards as superstructure sub-units having a crossbeam incorporated therein

Definitions

  • the present invention relates to a steering member structure including a column mount bracket for connecting a middle portion of a steering member to a vehicle body side member and holding a column shaft.
  • a steering member structure in which a bulkhead is inscribed and fixed inside a steering member, and a column mount bracket for holding a column shaft is joined to the outer periphery of the fixed position of the bulkhead (for example, Patent Document 1). reference).
  • the steering member is supported by the vehicle body via a side bracket attached to both ends, a post bracket attached to a position different from the column mount bracket, and a center bracket.
  • the vibration input from the column shaft is input to the steering member via the column mount bracket. Then, vibration is transmitted from the steering member to the side brackets at both ends, the post brackets at the intermediate part, and the center bracket, and is supported by the vehicle body. That is, in the conventional steering member structure, vibration is supported from the column mount bracket via the steering member. Therefore, it is necessary to sufficiently ensure the rigidity of the steering member, and there is a problem that the weight of the steering member increases.
  • the present invention has been made paying attention to the above problems, and an object of the present invention is to provide a steering member structure capable of reducing the weight of the steering member by improving the rigidity of the column shaft supported by the column mount bracket. To do.
  • a steering member extending in the vehicle width direction and having both ends supported by the vehicle body side member, and an intermediate portion of the steering member are connected to the vehicle body side member.
  • a column mount bracket for holding the column shaft.
  • the column mount bracket includes a vehicle body connection portion, first and second front beam portions, first and second rear beam portions, a front connection beam portion, a rear connection beam portion, and a first front and rear connection.
  • the vehicle body connecting portion is fixed to the vehicle body side member.
  • the first and second front beam portions extend from the vehicle body connection portion and hold both sides of the column shaft in the vehicle front direction of the vehicle front portion.
  • the first and second rear beam portions extend from the vehicle body connecting portion, are joined to the steering member, and hold both sides in the vehicle width direction of the intermediate portion of the column shaft.
  • the front connection beam portion connects the first and second front beam portions.
  • the rear connecting beam portion connects the first and second rear beam portions.
  • the first front / rear connecting beam portion connects the first front beam portion and the first rear beam portion and is joined to the steering member.
  • the second front / rear connecting beam portion connects the second front beam portion and the second rear beam portion and is joined to the steering member.
  • the vibration in the vehicle width direction input from the column shaft includes the front side connecting beam portion connecting the first and second front side beam portions, and the first and second rear side beam portions. It is received by the rear connecting beam part that connects the two. The received vibration is transmitted to the vehicle body connecting portion via the first and second front beam portions and the first and second rear beam portions and is supported by the vehicle body side member.
  • the vibration in the vehicle vertical direction input from the column shaft extends from the vehicle body connection portion, and from the vehicle body connection portion and the first and second front beam portions that hold both sides of the vehicle front portion of the column shaft in the vehicle width direction.
  • first and second rear beam portions that hold both sides of the intermediate portion of the column shaft in the vehicle width direction.
  • the received vibration is transmitted to the vehicle body connecting portion and supported by the vehicle body side member.
  • the torsion occurring between the front connection beam portion, the rear connection beam portion, the first and second front beam portions, and the first and second rear beam portions due to the vibration from the column shaft is the first front side. It is restrained by a first front-rear connecting beam portion that connects the beam portion and the first rear beam portion, and a second front-rear connecting beam portion that connects the second front beam portion and the second rear beam portion.
  • the vibration from the column shaft can be received by the column mount bracket and directly transmitted to the vehicle body side member without being transmitted to the steering member. That is, the support rigidity of the column shaft by the column mount bracket can be improved. And since the rigidity performance by this column mount bracket improves, it becomes possible to reduce the rigidity of a steering member, and weight reduction of a steering member can be achieved.
  • FIG. 1 is a schematic perspective view showing a steering member structure of Embodiment 1.
  • FIG. It is the perspective view which expanded the A section in FIG. 1A.
  • It is a schematic perspective view which shows the column mount bracket of Example 1.
  • FIG. It is a side view which shows the column mount bracket of Example 1.
  • FIG. It is a top view which shows the column mount bracket of Example 1.
  • FIG. It is a perspective view when the column mount bracket of Example 1 is seen from the vehicle front.
  • FIG. It is an expansion perspective view when the column shaft front part holding
  • FIG. 1 It is a principal part front view which shows the column shaft front part holding
  • FIG. It is an expansion perspective view which shows the column shaft rear part holding part of the column mount bracket of Example 1.
  • FIG. It is an expansion perspective view when the column shaft rear part holding
  • FIG. It is a side view which shows the holding state of the column shaft by the column mount bracket of Example 1.
  • FIG. It is an expansion perspective view which shows the front part holding state of the column shaft by the column mount bracket of Example 1.
  • FIG. It is an expansion perspective view which shows the rear part holding state of the column shaft by the column mount bracket of Example 1.
  • FIG. It is an expansion perspective view which shows the rear part holding state of the column shaft by the column mount bracket of Example 1.
  • FIG. 1 It is a top view which shows the beam structure of the column mount bracket of Example 1.
  • FIG. It is a side view which shows the beam structure of the column mount bracket of Example 1.
  • FIG. It is a perspective view which shows the steering member structure of a comparative example. It is explanatory drawing which shows the vibration support effect
  • FIG. It is explanatory drawing which shows the vibration support effect
  • the configuration of the steering member structure according to the first embodiment will be described by dividing it into “entire configuration”, “column mount bracket configuration”, and “column shaft holding configuration”.
  • FIG. 1A is a schematic perspective view showing a steering member structure of the first embodiment.
  • FIG. 1B is an enlarged perspective view of a portion A in FIG. 1A.
  • the direction indicated by the arrow X indicates the front of the vehicle
  • the direction indicated by the arrow Y indicates the left side of the vehicle
  • the direction indicated by the arrow Z indicates the upper side of the vehicle.
  • the steering member structure of Example 1 includes a steering member 1 and a column mount bracket 2 and is disposed inside an instrument panel (not shown).
  • the steering member 1 is composed of a hollow cylindrical steel pipe extending in the vehicle width direction, and is fixedly supported by a front pillar 11c, which is a vehicle body side member, via side brackets 11a and 11b provided at both ends. .
  • the column mount bracket 2 is connected to an intermediate portion of the steering member 1 and a dash panel 14 which is a vehicle body side member, and couples the steering member 1 to the dash panel 14.
  • the column mount bracket 2 is fixed to the dash panel 14 by screwing a nut 16 b to a screw 16 a fixed to the dash panel 14.
  • the column mount bracket 2 holds the column shaft 3 below the steering member 1.
  • the column shaft 3 rotatably holds a steering shaft (not shown here) that rotates integrally with the handle 15.
  • a first center bracket 12 extending downward and a second center bracket 13 extending forward of the vehicle are provided in the middle portion of the steering member 1.
  • the lower end of the first center bracket 12 is fixedly supported by a floor tunnel portion (not shown).
  • the tip of the second center bracket 13 is fixedly supported by the dash panel 14.
  • FIG. 2 is a schematic perspective view illustrating the column mount bracket of the first embodiment.
  • FIG. 3 is a side view showing the column mount bracket of the first embodiment.
  • FIG. 4 is a plan view showing the column mount bracket of the first embodiment.
  • FIG. 5 is a perspective view of the column mount bracket of the first embodiment when viewed from the front of the vehicle.
  • FIGS. 6 to 11 are views showing the main part of the column mount bracket as appropriate.
  • the direction indicated by the arrow X indicates the front of the vehicle
  • the direction indicated by the arrow Y indicates the left side of the vehicle
  • the direction indicated by the arrow Z indicates the upper side of the vehicle.
  • the column mount bracket 2 includes a post bracket member 21, a base bracket member 22, a front column holding member 23, and a reinforcement member 24.
  • the post bracket member 21 has a vehicle body connecting portion 211, first and second lower leg portions 212A and 212B, and first and second upper leg portions 213A and 213B.
  • the post bracket member 21 is formed by punching a flat steel plate and press-bending it.
  • the vehicle body connecting portion 211 is made of a rectangular flat steel plate and is fastened and fixed to the dash panel 14.
  • a screw through hole 211a is formed at the center of the vehicle body connecting portion 211 (see FIG. 5).
  • the screw 16a fixed to the dash panel 14 passes through the screw through hole 211a.
  • the vehicle body connecting portion 211 has a flange-like folded surface 211b formed by folding a peripheral edge portion toward the rear of the vehicle, and has a ridge line 211c along the folded surface 211b.
  • the first lower leg portion 212A and the second lower leg portion 212B are respectively rearward from the pair of corner portions facing the vehicle lower side of the vehicle body connecting portion 211 when the vehicle body connecting portion 211 is fixed to the dash panel 14. Is extended towards.
  • the first and second lower leg portions 212A and 212B are arranged side by side in the vehicle width direction, and the distance between the first and second lower leg portions 212A and 212B slightly extends toward the tip, but is substantially parallel.
  • the base bracket member 22 is arrange
  • the first and second lower leg portions 212A and 212B have angle shapes having support side surfaces 212Aa and 212Ba, flange side surfaces 212Ab and 212Bb, and ridge lines 212Ac and 212Bc, respectively.
  • the support side surfaces 212 ⁇ / b> Aa and 212 ⁇ / b> Ba are opposed to each other, and a tip end portion thereof is spot welded at a side surface portion 222 and S ⁇ b> 1 portion of the base bracket member 22 to be described later. Further, the peripheral edges (indicated by Arc in FIG. 6) of the front end portions of the support side surfaces 212Aa and 212Ba are arc-welded to shaft holding portions 232 and 232, which will be described later, of the front column holding member 23, respectively.
  • the flange side surfaces 212Ab and 212Bb are formed by bending the end portions on the dash panel 14 side of the support side surfaces 212Aa and 212Ba in a direction facing each other, and face the dash panel 14.
  • the end portions of the flange side surfaces 212Ab and 212Bb on the vehicle body connection portion 211 side are integrally continuous with the folded surface 211b.
  • end portions of the flange side surfaces 212Ab and 212Bb on the base bracket member 22 side are formed only up to the front of the front end portions of the support side surfaces 212Aa and 212Ba in order to avoid interference with the base bracket member 22 (see FIG. 6). ).
  • the ridgeline 212Ac is a steel plate folding curve formed by bending the support side surface 212Aa to form the flange side surface 212Ab, and extends along the extending direction of the first lower leg portion 212A.
  • the ridgeline 212Bc is a steel plate folding curve generated by bending the support side surface 212Ba to form the flange side surface 212Bb, and extends along the extending direction of the second lower leg portion 212B.
  • the first upper leg portion 213A and the second upper leg portion 213B are respectively directed toward the rear of the vehicle from a pair of corner portions facing the vehicle upper side of the vehicle body connection portion 211 when the vehicle body connection portion 211 is fixed to the dash panel 14.
  • the peripheral edge (indicated by Arc 1 in FIG. 9) of the tip end is arc welded to the outer peripheral surface 1 a of the steering member 1.
  • the first and second upper leg portions 213A and 213B are arranged side by side in the vehicle width direction, and the interval in the vehicle width direction is set to gradually increase from the vehicle body connecting portion 211 toward the steering member 1 (FIG. 4). reference).
  • the first and second upper leg portions 213A and 213B have an angle shape having support side surfaces 213Aa and 213Ba, flange side surfaces 213Ab and 213Bb, and ridge lines 213Ac and 213Bc, respectively.
  • the support side surfaces 213Aa and 213Ba face the upper side of the vehicle, respectively, and the tip ends abut on the upper side of the steering member 1.
  • the flange side surfaces 213Ab and 213Bb are formed by bending the ends of the support side surfaces 213Aa and 213Ba on the outer side in the vehicle width direction and face each other.
  • the end portions of the flange side surfaces 213Ab and 213Bb on the vehicle body connecting portion 211 side are integrally continuous with the folded surface 211b.
  • the end portions of the flange side surfaces 213Ab and 213Bb on the steering member 1 side are gradually reduced along the outer peripheral surface 1a of the steering member 1.
  • welding surface portions 213Ad and 213Bd projecting outward in the vehicle width direction are formed at the ends of the flange side surfaces 213Ab and 213Bb on the steering member 1 side.
  • the welding surface portions 213Ad and 213Bd are arc welded to the first welding flange portion 222d of the base bracket member 22 to be described later on the vehicle front side, and the vehicle rear side is curved along the steering member 1 and arc welded to the outer peripheral surface 1a. (See FIGS. 3 and 11).
  • the ridge line 213Ac is a steel plate folding curve generated by bending the support side surface 213Aa to form the flange side surface 213Ab, and extends along the extending direction of the first upper leg portion 213A.
  • the ridge line 213Bc is a steel plate folding curve generated by bending the support side surface 213Ba to form the flange side surface 213Bb, and extends along the extending direction of the second upper leg portion 213B.
  • the base bracket member 22 has a base bracket main body 221, a pair of side surface portions 222, 222, and a pair of ridge lines 223, 223.
  • the base bracket member 22 is formed by punching a flat steel plate and press-bending it.
  • the base bracket body 221 is made of a steel plate extending in the vehicle front-rear direction, and a front portion 221a facing the vehicle front is inserted between the first and second lower legs 212A and 212B of the post bracket member 21 (FIG. 6). reference).
  • the rear portion 221b facing the rear of the vehicle is disposed below the steering member 1 (see FIG. 10).
  • the protrusion part 221c which protruded above the vehicle is formed in the vehicle width direction center part of this rear part 221b (refer FIG. 10).
  • the protruding portion 221c has a notch 221d formed in a region that interferes with the steering member 1.
  • the shaft holding bolt 17 penetrates the base bracket body 221 downward, and a head portion 17a (see FIG. 11) is welded and fixed to the upper surface (not shown) of the base bracket body 221.
  • the pair of side surfaces 222, 222 are formed by bending both ends of the base bracket body 221 in the vehicle width direction toward the upper side of the vehicle, and face each other.
  • the front part 222a of each side part 222 facing the vehicle front is spot welded to the flange side faces 212Ab and 212Bb of the first and second lower leg parts 212A and 212B at the S1 part (see FIG. 3).
  • a curved concave portion 222c into which the steering member 1 is fitted and first and second welding flange portions 222d and 222e projecting outward in the vehicle width direction are formed on the rear portion 222b of each side portion 222 facing the vehicle rear. ing.
  • the first and second welding flange portions 222d and 222e extend in the vehicle front-rear direction with the curved concave portion 222c interposed therebetween (see FIG. 3).
  • the first welding flange portion 222d located on the vehicle front side is arc welded to the vehicle front side of the welding surface portions 213Ad and 213Bd of the first and second upper leg portions 213A and 213B.
  • the second welding flange portion 222e located on the vehicle rear side is arc-welded to the vehicle rear side of a welding flange portion 242 (described later) of the reinforcement member 24.
  • the pair of ridge lines 223 and 223 are steel plate folding curves generated by bending the base bracket body 221 to form the pair of side surface portions 222 and 222, and each extend along the vehicle longitudinal direction.
  • the ridgelines 223 and 223 coincide with the ridgelines 212Ac and 212Bc of the first and second lower leg portions 212A and 212B in the vehicle width direction (see FIG. 8).
  • the front column holding member 23 has a bracket fixing portion 231 and a pair of shaft holding portions 232 and 232.
  • the front column holding member 23 is formed by punching a flat steel plate and press-bending it.
  • the bracket fixing portion 231 is a strip-shaped steel plate extending in the vehicle width direction, and is spot-welded at a portion S2 below the front portion 221a of the base bracket body 221 of the base bracket member 22 (see FIG. 7). .
  • the pair of shaft holding portions 232 and 232 are formed by bending both ends in the vehicle width direction of the bracket fixing portion 231 downward, and face each other.
  • Each shaft holding portion 232 is formed with a bolt through hole 232a through which the holding bolt B1 holding the front portion 3a of the column shaft 3 passes.
  • a nut 18 is welded and fixed to the outer side in the vehicle width direction of one bolt through hole 232a (see FIG. 6). Further, the distance between the pair of shaft holding portions 232 and 232 is the same as the distance between the tip portions of the first and second lower leg portions 212A and 212B.
  • the steel plate folding curves 233 and 233 generated by bending the bracket fixing portion 231 to form the pair of shaft holding portions 232 and 232 are positioned in the vehicle vertical direction with respect to the pair of ridge lines 223 and 223 of the base bracket member 22.
  • the support side surfaces 212Aa and 212Ba of the first and second lower leg portions 212A and 212B and the pair of shaft holding portions 232 and 232 are substantially flush with each other (see FIG. 8).
  • the reinforcement member 24 is a portion facing the front end portions of the first and second upper leg portions 213A and 213B of the post bracket member 21 and covering the upper side of the steering member 1 and the rear portion 221b of the base bracket body 221. .
  • the reinforcement member 24 includes a reinforcement body 241 and welding flange portions 242 and 242 provided on both sides of the reinforcement body 241.
  • the reinforcement member 24 is formed by punching a flat steel plate and press-bending it.
  • the reinforcement main body 241 has a pair of curved protrusions formed on both sides in the vehicle width direction by arc-welding the front end portion 241a to the outer peripheral surface 1a of the steering member 1 and the tip ends of the first and second upper leg portions 213A and 213B. Parts 241b and 241b, and a weld recess 241c formed at the center in the vehicle width direction. As shown in FIG. 4, each curved protrusion 241b is formed by bending a protruding surface 241d covering the shaft holding bolt 17 penetrating the base bracket body 221 and both sides of the protruding surface 241d in the vehicle width direction downward. A pair of rising surfaces 241e, 241e facing each other.
  • the steel plate bending curve produced by bending the protruding surface 241d to form the rising surfaces 241e, 241e is a pair of ridge lines 241f, 241f.
  • the one ridge line 241f located on the outer side in the vehicle width direction is continuous with the ridge lines 213Ac and 213Bc of the first and second upper leg portions 213A and 213B in the vehicle front-rear direction (see FIG. 4).
  • the weld recess 241c is a flat surface surrounded by rising surfaces 241e and 241e on both sides and a curved surface 241g along the steering member 1, and is in contact with the protruding portion 221c of the base bracket body 221 and is spot-welded at S3. Is done. Further, the rear end edge (indicated by Arc 2 in FIG. 9) of the reinforcement main body 241 is arc-welded to the base bracket main body 221.
  • the welding flange portions 242 and 242 protrude outward from the reinforcement main body 241 in the vehicle width direction.
  • the welding flange portion 242 is arc welded to the outer peripheral surface 1a of the steering member 1 on the vehicle front side, and arc welded to the second welding flange portion 222e of the base bracket member 22 on the vehicle rear side (see FIG. 11).
  • the steering member 1 is sandwiched between the first and second upper leg portions 213A and 213B, the reinforcement member 24, and the base bracket member 22 from the vehicle vertical direction.
  • FIG. 12 is a side view illustrating a state in which the column shaft is held by the column mount bracket according to the first embodiment.
  • FIG. 13 is an enlarged perspective view showing a column shaft front portion held by the column mount bracket of the first embodiment.
  • FIG. 14 is an enlarged perspective view illustrating a rear holding state of the column shaft by the column mount bracket according to the first embodiment.
  • the column shaft 3 is provided with a handle 15 (see FIG. 1A) at one end, and is formed of a hollow saddle member that rotatably supports a steering shaft 31 that rotates integrally with the handle 15.
  • the column shaft 3 has a front portion 3 a held by the front column holding member 23 and an intermediate portion 3 b held by the rear portion 221 b of the base bracket body 221 of the base bracket member 22.
  • the handle 15 is disposed on the rear portion 3c side of the column shaft 3.
  • a steering wheel (not shown) is connected to the other end of the steering shaft 31.
  • the column shaft 3 is provided with a tilt mechanism 32, an EPS motor 33, an EPS control unit 34, a speed reducer 35, and a torque sensor 36.
  • the tilt mechanism 32 is provided on a holding bracket 37 attached to the intermediate portion 3b of the column shaft 3, and adjusts the height position of the column shaft 3.
  • 32a is a tilt lever.
  • the EPS motor (electric power steering motor) 33 is an electric motor that is provided in the vicinity of the front portion 3a of the column shaft 3 and assists the steering of the handle 15.
  • the EPS control unit 34 controls the operation of the EPS motor 33 according to the detection value from the torque sensor 36.
  • the speed reducer 35 is provided between an output shaft (not shown) of the EPS motor 33 and the steering shaft 31, and reduces the rotational speed from the EPS motor 33 and transmits it to the steering shaft 31.
  • a holding shaft 38 disposed between the shaft holding portions 232 and 232 of the front column holding member 23 is formed on the front end surface 35a of the speed reducer 35 (see FIG. 13).
  • the shaft holding portions 232 and 232 and the holding shaft 38 are integrally penetrated by the holding bolt B1, so that the front portion 3a of the column shaft 3 is held by the column mount bracket 2.
  • the holding bracket 37 includes a bracket main body 37a surrounding the outer periphery of the column shaft 3, and a pair of holding flanges 37b and 37b protruding outward from the bracket main body 37a in the vehicle width direction.
  • Each holding flange 37b is formed with an insertion hole (not shown) into which a pair of shaft holding bolts 17 and 17 penetrating the base bracket body 221 of the base bracket member 22 are inserted.
  • the nut 17 b is screwed into the shaft holding bolt 17 inserted into the insertion hole, whereby the holding bracket 37 is fixed to the lower side of the base bracket member 22, and the intermediate portion 3 b of the column shaft 3 is held by the column mount bracket 2. Is done.
  • FIG. 15A is a plan view illustrating a beam structure of the column mount bracket according to the first embodiment.
  • FIG. 15B is a side view illustrating a beam structure of the column mount bracket according to the first embodiment.
  • the “beam” is a linear portion that connects between vibration support points where the transmission direction of vibration changes, and supports or transmits the input vibration.
  • the column mount bracket 2 that holds the column shaft 3 corresponds to the vehicle body connection portion A in which the vehicle body connection portion 211 of the post bracket member 21 is fixed to the dash panel 14 that is the vehicle body side member. To do.
  • first and second lower leg portions 212A and 212B and a pair of shaft holding portions 232 and 232 that are substantially flush with the first and second lower leg portions 212A and 212B extend from the vehicle body connecting portion A in the vehicle front-rear direction. 3 corresponds to first and second front beam portions B and C that support both sides in the vehicle width direction of the vehicle front portion.
  • the intermediate bracket 3b of the column shaft 3 is held by fixing the holding bracket 37 attached to the column shaft 3 to the pair of shaft holding bolts 17 and 17 welded to the rear portion 221b of the base bracket body 221.
  • the rear portion 221b of the base bracket main body 221 is covered with the reinforcement member 24 and arc-welded to the rear end edge of the reinforcement main body 241, and the second welding flange portion 222e is arc-welded to the welding flange portion 242.
  • the front end portion 241a of the reinforcement member 24 is arc welded to the steering member 1 and the front end portions of the first and second upper leg portions 213A and 213B.
  • first and second upper leg portions 213A and 213B, the reinforcement member 24, and the rear portion 221b of the base bracket main body 221 extend from the vehicle body connection portion A in the vehicle front-rear direction and are joined to the steering member 1. And corresponds to first and second rear beam portions D and E that support both sides of the intermediate portion 3b of the column shaft 3 in the vehicle width direction.
  • the front column holding member 23 has the bracket fixing portion 231
  • the pair of shaft holding portions 232 and 232 are integrated.
  • the pair of shaft holding portions 232 and 232 correspond to the first and second front beam portions as described above.
  • fixed part 231 connects between the 1st, 2nd front side beam parts B and C, and is equivalent to the front side connection beam part F extended in a vehicle width direction.
  • the rear portion 221b of the base bracket main body 221 to which the pair of shaft holding bolts 17 and 17 are fixed is continuous in the vehicle width direction, although the protruding portion 221c is formed at the center in the vehicle width direction. Accordingly, the rear portion 221b of the base bracket body 221 corresponds to the rear connecting beam portion G that connects the first and second rear beam portions D and E and extends in the vehicle width direction.
  • the base bracket member 22 extends in the vehicle front-rear direction and is joined to the first and second lower legs 212A and 212B and joined to the reinforcement member 24.
  • the base bracket member 22 is arc welded to the steering member 1 at the first welding flange portion 222d. Accordingly, the base bracket member 22 connects the first front beam portion B and the first rear beam portion D, and the first front and rear connection beam portions H joined to the steering member 1 and the second front beam portion C.
  • the second rear beam portion E are connected to each other and correspond to the second front / rear connection beam portion I joined to the steering member 1.
  • the base bracket body 221 corresponds to a continuous portion that connects the first front-rear connecting beam portion H and the second front-rear connecting beam portion I. That is, when the front portion 221a of the base bracket main body 221 and the bracket fixing portion 231 are spot-welded, the front side connecting beam portion F and the continuous portion are overlapped and fixed.
  • FIG. 16 is a perspective view showing a steering member structure of a comparative example.
  • the steering member 1 is a part that is connected to a vehicle body side member such as the front pillar 11c and the dash panel 14 and supports a steering wheel (not shown) connected to the column shaft 3 and the steering shaft 31. Therefore, the steering member 1 is required to have a function of suppressing resonance between the idling vibration, running vibration, and the like generated in the vehicle and the steering wheel.
  • the steering wheel vibrates in all directions including the vehicle vertical direction, vehicle width direction (vehicle left-right direction), and diagonal direction. Therefore, it is desirable for the steering member 1 to suppress vibration in all vibration directions. However, if the strength of the steering member 1 itself is improved in order to improve the vibration suppressing function, the weight of the steering member 1 increases.
  • a column bracket 100 that supports a column shaft (not shown here) attached to the steering member 1 is attached to a vehicle body side member such as a dash panel via a post bracket 101. It is possible to concatenate. However, even in this case, if the rigidity of the post bracket 101 is low, it is difficult to ensure a sufficient vibration suppressing effect, and the rigidity of the steering member 1 cannot be reduced.
  • FIG. 17 is an explanatory diagram illustrating a vibration support function when a vibration is input in the vehicle width direction in the steering member structure according to the first embodiment.
  • members provided on the column shaft 3 such as the tilt mechanism 32 are omitted.
  • the handle 15 vibrates in the vehicle width direction (vehicle left-right direction) as shown in FIG. 17 due to idling vibration, traveling vibration, or the like. At this time, since the steering shaft 31 coupled to the handle 15 also vibrates integrally with the handle 15, the column shaft 3 holding the steering shaft 31 also vibrates in the vehicle width direction.
  • the front portion 3 a of the column shaft 3 is held by the front column holding member 23, and the intermediate portion 3 b of the column shaft 3 is held by the rear portion 221 b of the base bracket body 221. Therefore, the vibration in the vehicle width direction of the column shaft 3 is input to the column mount bracket 2 from the front column holding member 23 and the rear portion 221b of the base bracket body 221.
  • the front column holding member 23 includes a bracket fixing portion 231 integrated with shaft holding portions 232 and 232 that are substantially flush with the first and second lower leg portions 212A and 212B. Therefore, the vibration in the vehicle width direction input to the front column holding member 23 connects the first and second front beam portions B and C and fixes the bracket corresponding to the front connection beam portion F extending in the vehicle width direction. It is received by the part 231. And by receiving the vibration of the vehicle width direction by the bracket fixing
  • the rear portion 221b of the base bracket main body 221 is continuous in the vehicle width direction, although the protruding portion 221c is formed at the center in the vehicle width direction. Therefore, the vibration in the vehicle width direction input to the rear portion 221b of the base bracket main body 221 connects the first and second rear beam portions D and E to the rear connection beam portion G extending in the vehicle width direction. It is received by the corresponding rear portion 221b of the base bracket body 221. Then, by receiving the vibration in the vehicle width direction by the rear portion 221b of the base bracket body 221, the pair of shaft holding bolts 17 and 17 holding the column shaft 3 are suppressed from vibrating individually. Thereby, the vibration of the intermediate part 3b of the column shaft 3 in the vehicle width direction can be suppressed.
  • bracket fixing portion 231 that receives vibration in the vehicle width direction and the rear portion 221b of the base bracket body 221 are connected by a base bracket member 22 corresponding to the first and second front and rear connecting beam portions H and I. Therefore, the bracket fixing portion 231 and the rear portion 221b of the base bracket main body 221 are suppressed from vibrating individually, and the column mount bracket 2 is prevented from being twisted in the vehicle width direction. That is, the front portion 3a and the intermediate portion 3b of the column shaft 3 are prevented from being twisted in the vehicle width direction.
  • the base bracket member 22 has a pair of ridges 223 and 223 that are formed by bending both ends of the base bracket body 221 in the vehicle width direction and extend in the vehicle front-rear direction. For this reason, the rigidity of the base bracket member 22 can be improved, and the column mount bracket 2 can be more effectively prevented from being twisted in the vehicle width direction.
  • the vibration received by the bracket fixing portion 231 is transmitted to the vehicle body connecting portion 211 via the first and second lower leg portions 212A and 212B and supported by the dash panel 14 that is a vehicle body side member.
  • the vibration received by the rear portion 221b of the base bracket main body 221 is transmitted to the vehicle body connecting portion 211 via the first and second upper leg portions 213A and 213B, and is supported by the dash panel 14 that is a vehicle body side member.
  • the vibration support rigidity with respect to the vibration in the vehicle width direction of the column mount bracket 2 can be improved, and the vibration transmitted to the steering member 1 can be suppressed. For this reason, the rigidity of the steering member 1 can be reduced, and the weight of the steering member 1 can be reduced.
  • the bracket fixing portion 231 that receives the vibration in the vehicle width direction is overlapped with the front portion 221a of the base bracket body 221 and is spot-welded at S2.
  • the rigidity of the bracket fixing portion 231 corresponding to the front connecting beam portion F that receives the vibration in the vehicle width direction input to the front column holding member 23 is improved, and the effect of suppressing the vibration input from the front column holding member 23 is enhanced. be able to.
  • the rear portion 221b of the base bracket main body 221 that receives vibration in the vehicle width direction is covered with the reinforcement member 24, and the rear end edge and the second welding flange portions 222e on both sides are arc-welded to the reinforcement main body 241.
  • the rigidity of the rear portion 221b of the base bracket body 221 corresponding to the rear connecting beam portion G that receives vibrations in the vehicle width direction input from the pair of shaft holding bolts 17, 17 is improved, and the pair of shaft holding bolts 17, The effect of suppressing vibration input from 17 can be enhanced.
  • the first and second upper leg portions 213A and 213B that transmit the vibration received by the rear portion 221b of the base bracket main body 221 to the vehicle body connection portion 211 are separated from the vehicle body connection portion 211. It is set so as to gradually expand toward the steering member 1.
  • the column shaft 3 vibrates more greatly on the side of the handle 15 at the free end, that is, on the rear portion 3c than on the front portion 3a. Therefore, the first and second upper leg portions 213A and 213B are extended in accordance with the vibration direction of the column shaft 3, and vibration transmission to the vehicle body connection portion 211 can be performed smoothly. As a result, the load acting on the steering member 1 can be reduced, and the rigidity of the steering member 1 can be further reduced.
  • the steering member 1 is sandwiched from the vehicle vertical direction by the first and second upper leg portions 213A and 213B, the reinforcement member 24, and the base bracket body 221. That is, the steering member 1 is sandwiched between the first rear beam portion D and the first front / rear connection beam portion H, and is sandwiched between the second rear beam portion E and the second front / rear connection beam portion I.
  • the joining strength between the steering member 1 and the column mount bracket 2 can be improved, and in particular, the vibration of the column mount bracket 2 when the column shaft 3 vibrates in the vehicle width direction can be suppressed.
  • the support rigidity of the column shaft 3 by the column mount bracket 2 can be increased, and the weight of the steering member 1 can be reduced.
  • FIG. 18 is an explanatory diagram illustrating a vibration support function when a vibration is input in the vehicle vertical direction in the steering member structure according to the first embodiment.
  • the handle 15 vibrates not only in the vehicle width direction (vehicle left-right direction) but also in the vehicle up-down direction due to idling vibration or traveling vibration.
  • the vibration in the vehicle vertical direction is transmitted from the steering shaft 31 to the column shaft 3, and the column shaft 3 also vibrates in the vehicle vertical direction.
  • the vibration of the column shaft 3 in the vehicle vertical direction is input to the column mount bracket 2 from the front column holding member 23 and the rear portion 221b of the base bracket body 221.
  • the shaft holding portions 232 and 232 for holding the front portion 3a of the column shaft 3 of the front column holding member 23 are substantially the same as the first and second lower leg portions 212A and 212B integrated with the vehicle body connecting portion 211. Consecutive and continuous. Therefore, the vibration in the vehicle vertical direction inputted to the front column holding member 23 is substantially flush with the first and second lower leg portions 212A and 212B corresponding to the first and second front beam portions B and C.
  • the vibration in the vehicle vertical direction inputted to the rear portion 221b of the base bracket main body 221 is caused by the reinforcement member 24 corresponding to the first and second rear beam portions D and E and the first and second upper leg portions 213A and 213B. Received by. That is, the vehicle vertical vibration input from the rear portion 221b of the base bracket main body 221 is received by the first and second rear beam portions D and E extending in the vehicle vertical direction corresponding to the vibration direction. As a result, the vehicle vertical vibration input from the rear portion 221b of the base bracket body 221 is suppressed, and the vehicle vertical vibration of the intermediate portion 3b of the column shaft 3 can be suppressed.
  • first and second lower legs 212A and 212B that receive vibration in the vertical direction of the vehicle, the reinforcement member 24, and the first and second upper legs 213A and 213B are the first and second front and rear connecting beam portions. They are connected by a base bracket member 22 corresponding to H and I. Therefore, part of the vehicle vertical vibration input to the rear portion 221b of the base bracket body 221 is transmitted to the first and second lower legs 212A and 212B via the base bracket member 22. And it is received by these 1st, 2nd lower leg 212A, 212B. That is, the vibration of the middle portion 3b of the column shaft 3 that vibrates relatively greatly can be suppressed by the first and second lower leg portions 212A and 212B.
  • the vibration suppression effect can be improved. Furthermore, the first and second lower leg portions 212A and 212B, the reinforcement member 24 and the first and second upper leg portions 213A and 213B are restrained from vibrating individually, and the column mount bracket 2 is mounted on the vehicle. It is possible to prevent twisting in the vertical direction. That is, the front portion 3a and the intermediate portion 3b of the column shaft 3 are prevented from being twisted in the vehicle vertical direction.
  • the base bracket member 22 has a pair of ridge lines 223 and 223 extending in the vehicle front-rear direction, the rigidity of the base bracket member 22 can be improved, and the column mount bracket 2 is more effectively twisted in the vehicle vertical direction. Can be prevented.
  • the ridgelines 223 and 223 are aligned with the ridgelines 212Ac and 212Bc of the first and second lower legs 212A and 212B, so that the positions of the first and second lower legs 212A and 212B match.
  • the rigidity can be increased, and the effect of suppressing vibration in the vertical direction can be further improved.
  • the vibration received by the first and second lower legs 212A and 212B and the vibration received by the reinforcement member 24 and the first and second upper legs 213A and 213B are all transmitted to the vehicle body connection portion 211. And supported by a dash panel 14 which is a vehicle body side member.
  • the vibration support rigidity with respect to the vehicle vertical vibration of the column mount bracket 2 can be improved, and the vibration transmitted to the steering member 1 can be suppressed. For this reason, the rigidity of the steering member 1 can be reduced, and the weight of the steering member 1 can be reduced.
  • the first and second lower leg portions 212A and 212B and the first and second upper leg portions 213A and 213B with respect to the vehicle body connecting portion 211 are directed downward of the vehicle. Has been extended. Therefore, when the column shaft 3 vibrates in the vehicle vertical direction, the first and second lower leg portions 212A and 212B and the first and second upper leg portions 213A and 213B suppress vibration of the column shaft 3 from above. It becomes. Therefore, it becomes easy to suppress the vibration in the vehicle vertical direction, and the vibration suppressing effect can be improved.
  • the column mount bracket 2 of the first embodiment holds the intermediate portion 3b of the column shaft 3 at a position higher than the front portion 3a.
  • the column shaft 3 vibrates more greatly on the side of the handle 15 at the free end, that is, on the rear portion 3c than on the front portion 3a. Therefore, the distance between the intermediate portion 3b of the column shaft 3 that greatly vibrates and the vehicle body connecting portion 211 can be shortened, and the vibration suppressing effect in the vehicle vertical direction can be improved.
  • first and second lower legs 212A and 212B have ridgelines 212Ac and 212Bc that bend the support side surfaces 212Aa and 212Ba and extend in the extending direction of the first and second lower legs 212A and 212B. Yes. Therefore, the rigidity of the first and second lower legs 212A and 212B can be improved, and vibrations in the vehicle vertical direction input from the front column holding member 23 can be more effectively suppressed.
  • the reinforcement member 24 and the first and second upper legs 213A and 213B also have a ridge line 241f and ridge lines 213Ac and 213Bc, respectively. Therefore, the rigidity of the reinforcement member 24 and the first and second upper leg portions 213A and 213B can be improved, and vibration in the vehicle vertical direction input from the rear portion 221b of the base bracket body 221 can be more effectively suppressed. it can.
  • the ridgelines 241f and 241f located on the outer side in the vehicle width direction of the reinforcement member 24 and the ridgelines 213Ac and 213Bc of the first and second upper leg portions 213A and 213B are continuous in the vehicle front-rear direction. Thereby, the vibration of the vehicle up-down direction input from the rear part 221b of the base bracket main body 221 can be more effectively suppressed.
  • the vehicle width direction position of ridgeline 213Ac of 1st upper side leg part 213A and the vehicle width direction position of one ridgeline 223 of the base bracket member 22 correspond. Further, the vehicle width direction position of the ridge line 213Bc of the second upper leg 213B and the vehicle width direction position of the other ridge line 223 of the base bracket member 22 coincide with each other. As a result, the rigidity of the base bracket member 22 and the first and second upper leg portions 213A and 213B can be improved. As a result, the load acting on the steering member 1 can be reduced, and the rigidity of the steering member 1 can be further reduced.
  • the column mount bracket 2 is A vehicle body connecting portion (vehicle body connecting portion 211) A fixed to the vehicle body side member 14, First and second front beam portions (first and second lower leg portions 212A and 212B) that extend from the vehicle body connection portion A to the vehicle lower side and hold both sides in the vehicle width direction of the vehicle front portion of the column shaft 3.
  • the first and second rear beam portions (the first and second rear beam portions) that extend downward from the vehicle body connection portion A, are joined to the steering member 1, and hold both sides of the intermediate portion 3 b of the column shaft 3 in the vehicle width direction.
  • the first and second front beam portions B and C, the first and second rear beam portions D and H, the front connection beam portion F, the rear connection beam portion G, and A part of at least one of the first and second front and rear connecting beam portions H and I is configured by a steel material in which a ridge line is formed by bending an end portion.
  • the first and second front beam portions B and C and the first and second front and rear connecting beam portions H and I are each formed of the steel material,
  • the first front beam portion B and the first front-rear connecting beam portion H are joined in a state in which the positions of the ridgelines 212Ac and 223 in the vehicle width direction coincide with each other.
  • the second front beam portion C and the second front / rear connecting beam portion I are joined together with their ridgelines 212Bc and 223 aligned in the vehicle width direction.
  • the rigidity of the first front beam portion (first lower leg portion 212A) B and the second front beam portion (second lower leg portion B) C can be increased against vibration in the vehicle vertical direction.
  • the vibration suppression effect in the vehicle vertical direction can be further improved.
  • the first and second rear beam portions D and H are leg portions (first and second upper leg portions) 213A and 213B disposed between the vehicle body connecting portion A and the steering member 1, respectively.
  • Reinforce portion (reinforce member) 24 disposed between the steering member 1 and the column shaft 3;
  • the leg portions 213A, 213B and the reinforcement portion 24 are each formed of the steel material,
  • the leg portions 213A, 213B and the reinforcement portion 24 are configured to be joined to the steering member 1 in a state in which the ridgelines 213Ac, 213Bc, 241f are continuous in the vehicle front-rear direction. Thereby, the vibration of the vehicle up-down direction input from the rear side connection beam part (rear part 221b of the base bracket main body 221) G can be more effectively suppressed.
  • the vehicle width direction interval between the first and second rear beam portions D and E is set so as to gradually spread from the vehicle body connection portion A toward the steering member 1.
  • the first and second rear beam portions (first and second upper leg portions 213A and 213B) D and E are extended in accordance with the vibration direction of the column shaft 3, and the vehicle body connecting portion It is possible to smoothly transmit the vibration to 211 and reduce the load acting on the steering member 1.
  • the first front / rear connecting beam portion H and the second front / rear connecting beam portion I are connected to each other via a continuous portion (base bracket body) 221;
  • the continuous portion 221 is configured to overlap and be fixed to the front connecting beam portion (bracket fixing portion 231) F.
  • fixed part 231) F can be improved, and the vibration suppression effect of a vehicle width direction can be improved.
  • the first and second rear beam portions D and E are joined to the upper side of the steering member 1, and the first and second front and rear connecting beam portions H and I are joined to the lower side of the steering member 1.
  • the steering member 1 is sandwiched between the first rear beam portion D and the first front and rear connection beam portion H, and is sandwiched between the second rear beam portion E and the second front and rear connection beam portion I.
  • the configuration whereby, the joint strength between the steering member 1 and the column mount bracket 2 can be improved, and in particular, the vibration suppressing effect when the column shaft 3 vibrates in the vehicle width direction can be improved.
  • first and second lower leg portions 212A, 212B and the front column holding member 23 are formed as separate members, and the support side surfaces 212Aa, 212Ba and the shaft holding portions 232, 232 are substantially flush with each other.
  • first and second front beam portions B and C are configured.
  • the first and second lower legs 212A and 212B and the front column holding member 23 may be integrally formed of one steel material. In this case, not only the process of welding the two members becomes unnecessary, but also the flange side surface can be easily formed up to the tip portion of the shaft holding portion.
  • first and second upper leg portions 213A and 213B and the reinforcement member 24 are formed as separate members, and the reinforcement member 24 is formed at the distal ends of the first and second upper leg portions 213A and 213B.
  • the first and second rear beam portions B and C are configured by welding the front end portion 241a.
  • the first and second upper leg portions 213A and 213B and the reinforcement member 24 may be integrally formed of one steel material. In this case, the process of welding two members becomes unnecessary.
  • the shaft holding bolt 17 is fixed to the rear portion 221b of the base bracket body 221.
  • the shaft holding bolt 17 may be provided on the reinforcement member 24 and the base bracket body 221 may be overlapped.
  • the portion corresponding to the rear connecting beam portion G that connects the first and second rear beam portions D and E holding the intermediate portion 3b of the column shaft 3 overlaps the two steel plates.
  • the rigidity of the rear connecting beam portion G can be improved and the vibration suppressing effect can be improved.
  • the rigidity of the rear connecting beam portion G may be improved by bending the rear end portion of the reinforcement member 24 to form a ridgeline.
  • the front column holding member 23 and the front portion 221a of the base bracket body 221 are overlapped to improve the rigidity of the front connecting beam portion F.
  • the front column holding member 23 has a front end portion.
  • a ridgeline may be formed by bending to improve rigidity.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Steering Controls (AREA)

Abstract

L'invention concerne une structure d'élément de direction configurée d'une telle manière que la section intermédiaire d'un élément de direction (1) est raccordée à un élément côté caisse de véhicule (14) et d'une telle manière qu'un support de montage de colonne de direction (2) destiné à retenir un arbre de colonne de direction (3) comporte : une section de connexion de caisse de véhicule (A) qui est fixée sur l'élément côté caisse de véhicule (14) ; des première et seconde sections de poutre avant (B, C) qui s'étendent depuis la section de connexion de caisse de véhicule (A) et qui retiennent la section avant de véhicule de l'arbre de colonne de direction (3) ; des première et seconde sections de poutre arrière (D, E) qui s'étendent depuis la section de connexion de caisse de véhicule (A), sont jointes à l'élément de direction (1), et retiennent la section intermédiaire (3b) de l'arbre de colonne de direction (3) ; une section de poutre de connexion avant (F) qui connecte les première et seconde sections de poutre avant (B, C) ; une section de poutre de connexion arrière (G) qui connecte les première et seconde sections de poutre arrière (D, E) ; une première section de poutre de connexion avant arrière (H) qui connecte la première section de poutre avant (B) et la première section de poutre arrière (D) et qui est jointe à l'élément de direction (1) ; et une seconde section de poutre de connexion avant arrière (I) qui connecte la seconde section de poutre avant (C) et la seconde section de poutre arrière (E) et qui est jointe à l'élément de direction (1).
PCT/JP2013/061573 2012-05-02 2013-04-19 Structure d'élément de direction WO2013164956A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012105043 2012-05-02
JP2012-105043 2012-05-02

Publications (1)

Publication Number Publication Date
WO2013164956A1 true WO2013164956A1 (fr) 2013-11-07

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PCT/JP2013/061573 WO2013164956A1 (fr) 2012-05-02 2013-04-19 Structure d'élément de direction

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WO (1) WO2013164956A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016023803A1 (fr) * 2014-08-14 2016-02-18 Peugeot Citroen Automobiles Sa Ensemble comportant une traverse de planche de bord equipee d'un support pour la fixer au tablier d'un vehicule automobile
JP2019217983A (ja) * 2018-06-22 2019-12-26 マレリ株式会社 ステアリングメンバ構造
JP2021024398A (ja) * 2019-08-02 2021-02-22 スズキ株式会社 車両前部構造
JP2021024397A (ja) * 2019-08-02 2021-02-22 スズキ株式会社 車両前部構造

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002137707A (ja) * 2000-11-02 2002-05-14 Nissan Motor Co Ltd 車両用ステアリングコラム構造
JP2010143487A (ja) * 2008-12-19 2010-07-01 Mazda Motor Corp 自動車のステアリングシャフト支持構造
JP2012046001A (ja) * 2010-08-25 2012-03-08 Suzuki Motor Corp ステアリングサポートメンバーの構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002137707A (ja) * 2000-11-02 2002-05-14 Nissan Motor Co Ltd 車両用ステアリングコラム構造
JP2010143487A (ja) * 2008-12-19 2010-07-01 Mazda Motor Corp 自動車のステアリングシャフト支持構造
JP2012046001A (ja) * 2010-08-25 2012-03-08 Suzuki Motor Corp ステアリングサポートメンバーの構造

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016023803A1 (fr) * 2014-08-14 2016-02-18 Peugeot Citroen Automobiles Sa Ensemble comportant une traverse de planche de bord equipee d'un support pour la fixer au tablier d'un vehicule automobile
FR3024860A1 (fr) * 2014-08-14 2016-02-19 Peugeot Citroen Automobiles Sa Ensemble comportant une traverse de planche de bord equipee d'un support pour la fixer au tablier d'un vehicule automobile
JP2019217983A (ja) * 2018-06-22 2019-12-26 マレリ株式会社 ステアリングメンバ構造
JP2021024398A (ja) * 2019-08-02 2021-02-22 スズキ株式会社 車両前部構造
JP2021024397A (ja) * 2019-08-02 2021-02-22 スズキ株式会社 車両前部構造
JP7314695B2 (ja) 2019-08-02 2023-07-26 スズキ株式会社 車両前部構造
JP7400254B2 (ja) 2019-08-02 2023-12-19 スズキ株式会社 車両前部構造

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