WO2010058832A1 - 車体用高強度部材構造 - Google Patents

車体用高強度部材構造 Download PDF

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Publication number
WO2010058832A1
WO2010058832A1 PCT/JP2009/069687 JP2009069687W WO2010058832A1 WO 2010058832 A1 WO2010058832 A1 WO 2010058832A1 JP 2009069687 W JP2009069687 W JP 2009069687W WO 2010058832 A1 WO2010058832 A1 WO 2010058832A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
strength member
vehicle body
bracket
main body
Prior art date
Application number
PCT/JP2009/069687
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
雅人 安部
陽 松谷
Original Assignee
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.)
Filing date
Publication date
Priority claimed from JP2008297592A external-priority patent/JP5049252B2/ja
Priority claimed from JP2008311408A external-priority patent/JP5236443B2/ja
Priority claimed from JP2009022080A external-priority patent/JP5054712B2/ja
Application filed by カルソニックカンセイ株式会社 filed Critical カルソニックカンセイ株式会社
Priority to EP09827613.2A priority Critical patent/EP2351683B1/en
Priority to CN200980146521.5A priority patent/CN102224060B/zh
Priority to US13/130,373 priority patent/US8764102B2/en
Publication of WO2010058832A1 publication Critical patent/WO2010058832A1/ja

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body

Definitions

  • the present invention relates to a high-strength member structure for a vehicle body.
  • Vehicles such as automobiles have a resin instrument panel in the front part of the passenger compartment. Inside the instrument panel, a metal high-strength member for a vehicle body is provided (see, for example, Patent Document 1 and Patent Document 2).
  • the front part of the passenger compartment (the passenger compartment front FR1) includes a passenger compartment front wall FR2, a passenger compartment floor FR3, and a passenger compartment side wall FR4.
  • the vehicle body high-strength member 1 provided in the front portion of the vehicle compartment includes a vehicle body high-strength member body 3 extending substantially in the vehicle width direction 2.
  • the high-strength member main body 3 for vehicle body is constituted by a pipe member having a circular cross section. This pipe member has a shape in which an intermediate portion protrudes (forward).
  • the high-strength member main body 3 for vehicle body is provided with side brackets 4 for attachment to left and right vehicle body panels (side panels, not shown) at both ends.
  • Such a high-strength member body 3 for a vehicle body is designed mainly for supporting a steering column (not shown).
  • the high-strength member main body 3 for vehicle body is provided with a column bracket 5 for attaching a steering column at an intermediate portion (driver seat side portion) in the vehicle width direction 2.
  • the column bracket 5 is usually provided in the front-rear part of the high-strength member body 3 for vehicle body (not shown).
  • the high strength member main body 3 for the vehicle body is fixed to the center portion of the intermediate portion in the vehicle width direction 2 with the lower portion of the high strength member main body 3 for the vehicle body against the vehicle compartment floor 6 (floor panel, see FIG. 5).
  • a stay 8 that supports the high-strength member main body 3 for the vehicle body in the vertical direction 7 is provided.
  • two stays 8 are provided on the left and right.
  • the stay 8 is provided with a mounting bracket (not shown) to which a vehicle-mounted audio device (not shown), a control box (not shown) for controlling the air conditioner, and the like can be attached.
  • the stay 8 is set so as to be located on the vehicle interior side of the instrument panel 9 (see FIG. 5).
  • the stay 8 extends substantially in the vertical direction 7 and has a shape in which the upper end side is bent toward the vehicle front side in a side view. Thereby, as for the stay 8, the position of an upper end part and a lower end part has shifted
  • the vehicle body high-strength member main body 3 has a vehicle front side portion of the vehicle body high-strength member main body 3 on the driver's seat side portion in the middle in the vehicle width direction 2 (dash panel, FIG. 5). And a post bracket 13 that supports the vehicle body high-strength member body 3 in the vehicle longitudinal direction 12.
  • the post bracket 13 extends in the vehicle front-rear direction 12 and has a substantially U-shaped cross section that opens upward. As shown in FIG.
  • the post bracket 13 is bent and deformed as indicated by an imaginary line with respect to an emergency input load 15 from the front (for example, movement of the vehicle front wall 11 to the rear of the vehicle) ( And is strong enough to bend and deform against the passenger's knee input loads 16 and 17 (see FIG. 5) from the rear of the vehicle.
  • the post bracket 13 is formed with notches and other weakened portions 18 (see FIG. 6), and the strength of the post bracket 13 is intentionally weakened.
  • the high-strength member main body 3 for the vehicle body receives the occupant's knees in an emergency at the driver side or passenger side portion in the middle in the vehicle width direction 2 as necessary.
  • a knee protector 21 capable of absorbing knee input loads 16 and 17 (see FIG. 5) is provided.
  • the knee protector 21 includes, for example, a knee protection bracket 22 that is substantially L-shaped or substantially V-shaped in a side view extending downward from the lower portion of the vehicle body high-strength member main body 3 and a knee receiving member that directly receives a passenger's knee. 23.
  • a pair of knee protection brackets 22 are provided on the left and right sides so as to substantially correspond to both occupants' knees.
  • the knee support member 23 is installed between the vehicle interior side end portions of the pair of left and right knee protect brackets 22.
  • the knee protector 21 has an upper knee protection bracket 24 that mainly receives the knee of an average occupant and absorbs the knee input load 16, as shown in FIG.
  • a lower knee protect bracket 25 that mainly receives a small passenger's knee and absorbs the knee input load 17 is provided separately so that it can be adapted to the occupant's physique. Yes. Note that the knee protector 21 in FIG. 4 does not have a function corresponding to such a physique.
  • the high-strength member body 3 for a vehicle body is attached to left and right vehicle body panels (side panels) (not shown) by the side brackets 4 provided at both ends thereof.
  • the high-strength member body 3 for vehicle body basically functions to support the steering column via the column bracket 5.
  • the stay 8 provided at the intermediate portion in the vehicle width direction 2 of the high-strength member main body 3 for the vehicle body fixes the lower portion of the high-strength member main body 3 for the vehicle body to the vehicle compartment floor 6 (floor panel).
  • the high-strength member main body 3 for the vehicle body functions mainly to support the vertical direction 7.
  • the stay 8 can suppress vibrations in the vertical direction 7 of the steering column and the high-strength member main body 3 for the vehicle body.
  • a post bracket 13 provided at an intermediate portion in the vehicle width direction 2 of the high-strength member main body 3 for the vehicle body has a vehicle front side portion 11 (dash panel) at the vehicle front side portion of the high-strength member main body 3 for the vehicle body.
  • the vehicle body high-strength member main body 3 functions mainly to support the vehicle longitudinal direction 12. Further, for the emergency input load 15 from the front of the vehicle, as shown in FIG. 6, the post bracket 13 is bent and deformed (collapsed) before the high-strength member main body 3 for the vehicle body is deformed. It functions to prevent the strength member main body 3 from moving toward the vehicle rear side, bending, or the like.
  • the post bracket 13 is bent and deformed (collapsed) before the vehicle body high strength member main body 3 is deformed, whereby the vehicle body high strength member.
  • the main body 3 functions to prevent the vehicle 3 from moving forward or bending.
  • the knee protector 21 provided at the intermediate portion in the vehicle width direction 2 of the high-strength member main body 3 for the vehicle body bends and deforms the knee protection bracket 22 when the knee support member 23 receives the occupant's knee in an emergency. It functions to absorb the knee input loads 16 and 17 by being crushed.
  • the upper knee protection bracket 24 is mainly bent and deformed (crushed) in the case of an average occupant due to the difference in height per knee with respect to the knee support member 23,
  • the knee input load 16 is absorbed, and in the case of a small occupant, the lower knee protection bracket 25 functions to absorb the knee input load 17 mainly by bending deformation (crushed).
  • a metal high-strength member for a vehicle body having another structure is provided inside the instrument panel (see, for example, Patent Document 1).
  • the vehicle body high-strength member 202 provided at the front portion in the passenger compartment 201 includes a vehicle body high-strength member main body 204 extending substantially in the vehicle width direction 203. As shown in FIG.
  • the high-strength member main body 204 for a vehicle body is usually constituted by a pipe member having a circular cross section.
  • the pipe member is configured such that the driver's seat side is thick (large diameter pipe portion 205) and the passenger seat side is thin (small diameter pipe portion 206).
  • the taper-shaped connection part 207 for enabling it to connect continuously, absorbing the diameter difference of both is interposed.
  • the large-diameter pipe portion 205 and the tapered connecting portion 207, and the tapered connecting portion 207 and the small-diameter pipe portion 206 are integrally welded and fixed (all-around welding).
  • the high-strength member 202 for the vehicle body is shown for a left-hand drive vehicle.
  • the high-strength member main body 204 for vehicle body is provided with side brackets 209 that can be attached to left and right vehicle body panels (side panels, not shown) at both ends thereof.
  • This side bracket 209 is integrally fixed to the high strength member main body 204 for vehicle body by welding.
  • the vehicle body high-strength member main body 204 fixes the lower portion of the vehicle body high-strength member main body 204 to the vehicle interior floor portion (floor panel, not shown) at an intermediate portion in the vehicle width direction 203.
  • a stay 212 for supporting the strength member main body 204 is provided. This stay 212 extends substantially in the vertical direction 213. The upper end portion of the stay 212 is integrally fixed to the high strength member main body 204 for vehicle body by welding.
  • the high-strength member main body 204 for the vehicle body can be attached with a steering column 214 (see FIG. 23) on at least the lower portion of the high-strength member main body 204 for the vehicle body on the driver seat side in the intermediate portion in the vehicle width direction 203.
  • Column brackets 215 and 216 are provided.
  • the column brackets 215 and 216 are usually provided before and after the high-strength member main body 204 for the vehicle body.
  • the column brackets 215 and 216 are usually provided in a pair of left and right respectively. These column brackets 215 and 216 are integrally fixed to the high strength member main body 204 for vehicle body by welding.
  • the high strength member main body 204 for the vehicle body includes a post bracket 217 that can support the vehicle front side portion of the high strength member main body 204 for the vehicle body.
  • the post bracket 217 includes a main body support portion 221 interposed between a vehicle compartment front wall portion 218 (dash panel) and a vehicle front side portion of the high strength member main body 204 for the vehicle body, It has a substantially bifurcated shape in side view, having a column support portion 222 interposed between the vehicle compartment front wall portion 18 (dash panel) and the column bracket 15 on the vehicle front side.
  • the post bracket 217 is configured as a single vertical surface portion 223. At the upper end of the vertical surface portion 223 (the upper edge portion of the main body support portion 221), a horizontal flange portion 224 is formed by bending.
  • the lateral flange portion 224 has a narrow width and a substantially uniform width.
  • the intermediate portion of the bifurcated post bracket 217 that is, the joining portion of the front end portion of the main body support portion 221 and the front end portion of the column support portion 222 can be attached to the vehicle compartment front wall portion 18.
  • a front wall mounting portion 225 is provided. As shown in FIG. 24, the front wall mounting portion 225 includes a contact surface 226 that can contact the front wall portion 218 of the passenger compartment, and a fastening portion 227 such as a screw hole provided in the contact surface 226. And have.
  • the post bracket 217 (the body support portion 221 and the like) of the post bracket 217 (the body support portion 221 and the like) is not deformed in a normal state, and in an emergency (for example, when an emergency input load is received from the front).
  • a weak part such as a notch (an emergency deformation weak part, not shown) is appropriately provided.
  • the body support portion 221 of the post bracket 217 is welded and fixed integrally to the vehicle body high-strength member body 204 at the vehicle interior side end portion (weld portion 231). .
  • the column support portion 222 of the post bracket 217 is integrally welded and fixed to the vehicle front side end portion of the column bracket 15 (welded portion 232).
  • the vehicle body high-strength member main body 204 is attached to the left and right vehicle body panels (side panels) by the side brackets 209 provided at both ends thereof.
  • the high-strength member main body 204 for the vehicle body basically functions to support the steering column 214 via the column brackets 215 and 216.
  • a stay 212 provided at an intermediate portion of the vehicle body high-strength member main body 204 in the vehicle width direction 203 fixes the lower portion of the vehicle body high-strength member main body 204 to a vehicle compartment floor (floor panel) (not shown).
  • the vehicle body high-strength member main body 204 functions mainly to support the vertical direction 213.
  • the stay 212 can suppress vibrations in the vertical direction 213 of the steering column 214 and the high-strength member main body 204 for the vehicle body.
  • the post bracket 217 provided on the driver seat side of the middle portion of the vehicle body high-strength member main body 204 in the vehicle width direction 203 has a main body support portion 221 that provides a vehicle front side portion of the vehicle body high-strength member main body 204. It fixes to the vehicle interior front wall 218 (dash panel) and functions to support the vehicle body high-strength member main body 204 mainly in the vehicle longitudinal direction 233.
  • the post bracket 217 has a column support portion 222 that extends through the column bracket 215 on the front side of the vehicle, the steering column 214, the vehicle longitudinal direction 233, the vertical direction 213, and the circumferential direction of the vehicle body high-strength member main body 204. Direction).
  • the body support portion 221 of the post bracket 217 bends and deforms before the vehicle body high-strength member body 204 is deformed with respect to the emergency input load 234 from the front in the vehicle longitudinal direction 233. By being crushed, it functions to prevent the vehicle body high-strength member main body 204 from moving toward the vehicle interior or bending.
  • the post bracket 217 (the main body support portion 221 and the like) needs to have a function that can be deformed in an emergency and not deformed in an emergency.
  • a post bracket 217 (main body support portion 221 or the like) is appropriately provided with a fragile portion such as a notch (a weak portion for emergency deformation, not shown), thereby providing an emergency post bracket.
  • the strength of 217 (the main body support portion 221 and the like) is reduced.
  • a metal high-strength member for a vehicle body having another structure is provided inside the instrument panel (see, for example, Patent Document 2 and Patent Document 3).
  • the vehicle body high-strength member 305 disposed in the passenger compartment front FR1 includes a vehicle body high-strength member main body 307 extending substantially in the vehicle width direction 306. As shown in FIG.
  • the vehicle body high-strength member 305 includes side brackets 308 for attaching both ends of the vehicle body high-strength member main body 307 to the left and right vehicle interior side walls FR4 (see FIG. 31).
  • the vehicle body high-strength member 305 includes a stay 309 that can support the vehicle body high-strength member main body 307 on the vehicle compartment floor FR3 (see FIG. 31).
  • the vehicle body high strength member 305 includes a post bracket 311 that can support the vehicle body high strength member main body 307 on the vehicle compartment front wall FR2.
  • the vehicle body high-strength member main body 307 includes a column bracket 313 that can hold a steering column.
  • the vehicle body high strength member 305 includes an air conditioning unit attachment portion 315 for fixing the air conditioning unit 314 to the vehicle body high strength member main body 307 and the stay 309.
  • the high-strength member body 7 for a vehicle body can receive the occupant's knees in an emergency (for example, when an emergency input load is received from the front) and can absorb the knee input loads 316U and 316D.
  • a knee protector 318 is attached.
  • the above-described high-strength member main body 307 for a vehicle body is usually constituted by a pipe having a circular metal cross section. Further, the high-strength member main body 307 for the vehicle body is provided with a large-diameter pipe 321 on the driver's seat side and a small-diameter pipe 322 on the passenger seat side, depending on the required strength difference.
  • the large diameter pipe 321 and the small diameter pipe 322 are integrated via a connecting member 324.
  • the connecting member 324 is a tapered short tube member or the like. Between the large-diameter pipe 321 and the connecting member 324 and between the connecting member 324 and the small-diameter pipe 22 are fixed by welding (all-around welding).
  • the above-described stay 309 is usually made of metal.
  • the stay 309 is attached to a substantially central portion of an intermediate portion in the vehicle width direction 306 of the high strength member main body 307 for the vehicle body.
  • one or two stays 309 are provided.
  • the stay 309 extends substantially in the vertical direction 325.
  • the upper end of the stay 309 is welded or bolted to the lower part of the high strength member main body 307 for the vehicle body (in the case of FIG. 31, bolted in the vehicle width direction 306).
  • the bolt fixing in this case is strong enough not to be removed in an emergency.
  • the lower end of the stay 309 is bolted to the passenger compartment floor FR3 (in the case of FIG. 31, bolted in the vehicle width direction 306).
  • the post bracket 311 described above is usually made of metal.
  • the post bracket 311 is attached to a portion (large diameter pipe 321) on the driver's seat side of the high strength member main body 307 for the vehicle body.
  • the post bracket 311 extends substantially in the vehicle longitudinal direction 326.
  • tip part of the post bracket 311 is being fixed to the compartment front wall FR2.
  • the rear end portion of the post bracket 311 is fixed directly to the vehicle front side portion of the high-strength member main body 7 for the vehicle body or indirectly via the column bracket 313.
  • the rear end portion of the post bracket 311 and the high strength member main body 307 for the vehicle body or the column bracket 313 are fixed by welding. As shown in FIG.
  • the post bracket 311 may be crushed in an emergency, thereby reducing the amount of rearward movement of the high-strength member main body 307 for the vehicle body or absorbing the emergency input load 327. It is configured to be able to.
  • the post bracket 311 is provided with a weakened portion 328.
  • the column bracket 313 described above is usually made of metal.
  • the column bracket 313 is attached to a portion (large diameter pipe 321) on the driver's seat side of the high strength member main body 307 for the vehicle body.
  • the column bracket 311 is provided in front of and behind the high-strength member main body 307 for the vehicle body (not shown) so that the front and rear portions of the steering column can be fixed.
  • the column bracket 311 is fixed by welding to the high-strength member main body 307 for the vehicle body.
  • the air conditioning unit attachment portion 315 described above is attached to a substantially central portion of the middle portion of the vehicle body high-strength member main body 307 in the vehicle width direction 306, the stay 309, or the like.
  • the air conditioning unit 314 is usually made of resin.
  • the knee protector 318 described above is attached to the driver seat side portion (large diameter pipe 321) and the passenger seat side portion (small diameter pipe 322) of the high strength member main body 307 for the vehicle body.
  • the knee protector 318 includes an upper bracket 318a corresponding to an occupant's knee of an average physique and a lower bracket 318b corresponding to a small occupant's knee.
  • the upper bracket 318a and the lower bracket 318b are connected by a knee support member 318c.
  • the passenger compartment front wall FR2 and the left and right passenger compartment side walls FR4 move to the rear of the vehicle.
  • the high-strength member main body 307 for the vehicle body moves rearward through the post bracket 311 and the side bracket 308.
  • the post bracket 311 reduces the amount of movement of the high-strength member main body 307 for the vehicle body to the rear of the vehicle or absorbs the emergency input load 327 as the fragile portion 328 is crushed. To function.
  • the passenger compartment front wall FR2 moves rearward of the vehicle, the passenger compartment front wall FR2 collapses the air conditioning unit 314, which is mostly made of resin. Thereby, the rearward movement amount of the high-strength member main body 307 for the vehicle body and the stay 309 can be reduced, and the emergency input load 327 can be absorbed.
  • the knee receiving member 318c receives the occupant's knee and the upper bracket 318a and the lower bracket 318b are bent and deformed in an emergency. By doing (crushing), it functions to absorb the knee input loads 316U and 316D.
  • the upper bracket 318a mainly bends and deforms (crushes) to absorb the knee input load 316U (the upper one in FIG. 10), and in the case of a small passenger
  • the lower bracket 318b functions to absorb the knee input load 316D (the lower side in FIG. 10) when the lower bracket 318b is bent and deformed (collapsed). Thereby, for example, it is prevented that the occupant jumps out of the vehicle.
  • the knee protect bracket 22 constituting the knee protector 21 in FIG. 4 is configured to extend downward from the high-strength member main body 3 for the vehicle body (arm length L) as shown in FIG.
  • the knee protector 21 receives the knees of the occupant and absorbs the knee input loads 16 and 17, sometimes the high strength member body 3 for the vehicle body has a moment M in the torsional direction, a forward load F1, and an upward direction.
  • the load F2 or the like is applied (the same can be said for FIG. 35).
  • means 1 increase the strength of the high-strength member main body 3 for vehicle body
  • means 2 increase the strength of the post bracket 13 and the stay 8
  • a means for suppressing the deformation of the high-strength member main body 3 for the vehicle body can be considered.
  • the post bracket 13 When the indirect means of the means 2 is adopted, the post bracket 13 is applied to the emergency input load 15 from the front in order to prevent the high-strength member main body 3 for the vehicle body from moving and bending as described above.
  • the post bracket 13 is intentionally weakened because the post bracket 13 is designed to have sufficient strength to bend and deform against the knee input loads 16 and 17 of the passengers from behind. Therefore, it is difficult to suppress the deformation of the high strength member main body 3 for the vehicle body by the post bracket 13.
  • the stay 8 has a shape in which the upper end side is bent toward the front side of the vehicle in a side view so as to be positioned on the vehicle interior side of the instrument panel 9 in order to arrange an in-vehicle audio device, a control box, and the like. That is, that is, the stay 8 does not have a configuration in which strength is given the highest priority, so it is difficult to suppress the deformation of the high strength member main body 3 for the vehicle body by the stay 8.
  • the knee protector 21 may be designed in consideration of deformation of the high-strength member body 3 for a vehicle body.
  • the occupant's knee input direction (the direction of the knee input loads 16 and 17) varies depending on individual differences and circumstances, it is difficult to accurately predict performance.
  • it is predicted that many complicated processes will be required for designing in consideration of deformation of the high strength member body 3 for a vehicle body it cannot be said that it is a practical means.
  • the post bracket 217 shown in FIG. 23 is deformed by a predetermined deformation stroke a with respect to the emergency input load 234 from the front in the vehicle front-rear direction 233 as indicated by a virtual line in FIG.
  • the emergency input load 234 can be absorbed well.
  • the deformation stroke b of the post bracket 217 may be reduced (a> b).
  • the post bracket 17 may be difficult to deform.
  • the post brackets 13, 217, 311 are crushed to reduce the rearward movement amount of the high-strength member bodies 3, 204, 307 for the vehicle body and absorb the emergency input loads 15, 234, 327.
  • the air-conditioning unit 314 needs to be reduced in size and weight. For this reason, the air conditioning unit 314 becomes dense inside, and the crushing allowance in an emergency is reduced, so that the rearward movement amount of the high-strength member main body 307 for the vehicle body and the stay 309 can be reduced, or the emergency input load 327 can be reduced. It is difficult for the air conditioning unit 314 to have a function of absorbing air.
  • the high-strength member structure for a vehicle body of the present invention is provided at a middle portion of the high-strength member main body for the vehicle body provided in front of the vehicle interior of the vehicle and extending substantially in the vehicle width direction, and the high-strength member main body for the vehicle body,
  • a high-rigidity structural part having a plurality of closed cross sections in the longitudinal direction of the vehicle, a stay attached to the high-rigidity structural part and supporting the high-strength member main body for the vehicle body in the vertical direction, and attached to the high-rigidity structural part
  • a post bracket that supports the vehicle body high-strength member body in the vehicle longitudinal direction, and is attached to the high-rigidity structure portion.
  • a knee protector capable of absorbing water.
  • a cross-sectional enlarged portion having a larger horizontal section than the lower end side is provided on the upper end side of the stay, and the cross-sectional enlarged portion is attached to the lower surface of the highly rigid structure portion.
  • the post bracket is bent and deformed before the vehicle body high-strength member body with respect to an emergency input load from the front in the vehicle longitudinal direction, and the knee input load of the occupant from the rear in the vehicle longitudinal direction
  • it is a reinforced post bracket having a strength that does not bend and deform before the high strength member main body for the vehicle body.
  • the vehicle further includes a column bracket that is attached to the high-rigidity structure portion and attaches a steering column of the vehicle
  • the post bracket includes a vehicle front wall portion of the vehicle and a vehicle front side portion of the high-rigidity structure portion. It has a bifurcated shape having a main body support portion interposed between and a column support portion interposed between the vehicle compartment front wall portion and the column bracket.
  • a base bracket that can be disposed in contact with the upper surface of the high-rigidity structure portion on the front side of the vehicle and the upper surface of the column bracket from above, the vehicle rear side end of the main body support portion of the post bracket, and the column
  • a reinforced post bracket body which is constructed and connected between the lower end portion of the support portion and has a substantially triangular shape in a side view, and between the base bracket and the vehicle front side upper surface of the high-rigidity structure portion,
  • a high-strength member mounting portion for a vehicle body that mounts the base bracket to the high-rigidity structure portion
  • a column bracket mounting that mounts the base bracket to the column bracket between the base bracket and the upper surface of the column bracket.
  • the reinforced post bracket body is separated from the high rigidity structural portion and the column bracket by an emergency input load from the front between the high rigidity structural portion and the column bracket and the reinforced post bracket body.
  • an emergency separable and retractable structure that can be mounted so that it can be retracted, and the emergency separable and retractable structural part includes a sliding surface provided on the lower surface of the base bracket, and a high-rigidity structural part.
  • a guide surface portion provided on the vehicle front upper surface and the upper surface of the column bracket and capable of guiding a slide toward the rear and upward of the vehicle, and the high-strength member mounting portion for the vehicle body and the column bracket mounting portion.
  • the load absorbing mounting member is provided between the slide surface portion and the guide surface portion so that it can be selectively installed, and it can absorb an emergency input load by breaking by an emergency input load from the front of the vehicle.
  • a load absorption amount adjusting member capable of setting and adjusting the absorption amount of the input load.
  • the post bracket has at least two vertical surface portions arranged in parallel with a space therebetween, and the two vertical surface portions are connected by the base bracket.
  • an attachment structure part for attaching the stay to the highly rigid structure part is provided between the highly rigid structure part and the stay, and the attachment structure part is connected to the highly rigid structure part by an emergency input load. It is an emergency separable mounting structure that can be separated from the stay.
  • the mounting structure portion includes a mounting surface portion provided in the high-rigidity structure portion, a mounting surface portion provided in the stay, and a fixing portion that fixes between both mounting surface portions, and is separable in the emergency.
  • the mounting structure portion has both the mounting surface portions as an emergency back-and-forth movable portion that can move substantially in the vehicle front-rear direction, and the fixing portion is provided between the high-rigidity structure portion and the stay by an emergency input load. It is characterized by having as an emergency releasable fixing part capable of releasing the fixed state.
  • the emergency releasable fixing portion includes a load absorbing portion capable of absorbing an emergency input load when the fixed state between the high-rigidity structure portion and the stay is released. To do.
  • Each of the above configurations is a minimum necessary configuration for exhibiting the required operational effects.
  • the details of the above configuration and configurations not described have a degree of freedom. It is. Of course, matters that can be read from the description of the above configuration are included in the scope even if they are not specifically described.
  • the operational effects of the added configuration are added.
  • the high-strength member structure for a vehicle body of the present invention is provided at a middle portion of the high-strength member main body for the vehicle body provided in front of the vehicle interior of the vehicle and extending substantially in the vehicle width direction, and the high-strength member main body for the vehicle body,
  • a high-rigidity structural part having a plurality of closed cross sections in the longitudinal direction of the vehicle, a stay attached to the high-rigidity structural part and supporting the high-strength member main body for the vehicle body in the vertical direction, and attached to the high-rigidity structural part
  • a post bracket that supports the vehicle body high-strength member body in the vehicle longitudinal direction, and is attached to the high-rigidity structure portion.
  • a knee protector capable of absorbing water.
  • the following operational effects can be obtained. That is, by providing a high-rigidity structure portion having a plurality of closed cross sections at least in the middle part of the high-strength member main body for the vehicle body, the strength and rigidity of at least the middle part of the high-strength member main body for the vehicle body can be improved. . As a result, it is possible to reduce bending and (twisting in the circumferential direction) of the high-strength member main body for the vehicle body and to prevent movement and bending of the high-strength member main body for the vehicle body.
  • a cross-sectional enlarged portion having a larger horizontal section than the lower end side is provided on the upper end side of the stay, and the cross-sectional enlarged portion is attached to the lower surface of the highly rigid structure portion.
  • the stay can prevent the vehicle body high-strength member main body from moving toward the rear of the vehicle against an emergency input load from the front.
  • the stay can suppress the vehicle body high-strength member main body from moving upward or forward of the vehicle due to a knee input load applied to the knee protector. Further, by connecting the enlarged cross-section portion to the lower surface of the high-rigidity structure portion, the stay can effectively suppress twisting of the high-strength member main body (such as the high-rigidity structure portion) for the vehicle body. For example, the stay generates a reaction force against the moment generated in the high-strength member main body for the vehicle body due to the knee input load to the knee protector, thereby suppressing the twist of the high-strength member main body for the vehicle body. .
  • the strength of the high-strength member body for the vehicle body necessary for satisfying the performance of the knee protector can be reduced by the stay having the cross-sectional enlarged portion, and the stay having the cross-sectional enlarged portion can be used for the body of the knee protector.
  • the degree of dependence on the high-strength member main body can be further reduced.
  • the post bracket is bent and deformed before the vehicle body high-strength member body with respect to an emergency input load from the front in the vehicle longitudinal direction, and the knee input load of the occupant from the rear in the vehicle longitudinal direction
  • it is a reinforced post bracket having a strength that does not bend and deform before the high strength member main body for the vehicle body.
  • the high-strength member body for the vehicle body is bent due to the rigidity and strength improvement effect of the high-strength member body for the vehicle body by the high-rigidity structure portion and the effect of suppressing the movement and twisting of the high-strength member body for the vehicle body by the stay, Since it is difficult to twist, the knee input load to the knee protector can be received only by the high-strength member main body for the vehicle body. Accordingly, it is not necessary to bend and deform the post bracket to absorb the knee input load before the high-strength member main body for the vehicle body is bent, so that the strength of the post bracket can be increased.
  • the reinforced post bracket is bent and deformed to absorb the load against the emergency input load from the front of the vehicle in the vehicle longitudinal direction, and the vehicle
  • the reinforced post bracket does not bend and deform against the knee input load of the occupant from the rear in the front-rear direction, and the reinforced post bracket 73 and the high strength member body for the vehicle share the knee input loads 45 and 46 together.
  • a possible structure can be obtained.
  • the strength of the high-strength member body for the vehicle body required to satisfy the performance of the knee protector can be reduced by the reinforced post bracket, and the high-strength member body for the vehicle body of the knee protector can be reduced by the reinforced post bracket.
  • the degree of dependence on can be further reduced.
  • the post bracket is a reinforced post bracket, the steering support rigidity can also be increased, so that the degree of freedom in material selection is increased, and other parts of the high strength member main body for the vehicle body are increased accordingly. It is possible to reduce the weight.
  • the vehicle further includes a column bracket that is attached to the high-rigidity structure portion and attaches a steering column of the vehicle
  • the post bracket includes a vehicle front wall portion of the vehicle and a vehicle front side portion of the high-rigidity structure portion. It has a bifurcated shape having a main body support portion interposed between and a column support portion interposed between the vehicle compartment front wall portion and the column bracket.
  • a base bracket that can be disposed in contact with the upper surface of the high-rigidity structure portion on the front side of the vehicle and the upper surface of the column bracket from above, the vehicle rear side end of the main body support portion of the post bracket, and the column
  • a reinforced post bracket body which is constructed and connected between the lower end portion of the support portion and has a substantially triangular shape in a side view, and between the base bracket and the vehicle front side upper surface of the high-rigidity structure portion,
  • a high-strength member mounting portion for a vehicle body that mounts the base bracket to the high-rigidity structure portion
  • a column bracket mounting that mounts the base bracket to the column bracket between the base bracket and the upper surface of the column bracket.
  • the reinforced post bracket body can have high rigidity. This makes it possible to reduce the weight of the post bracket or the reinforced post bracket body.
  • the base bracket of the reinforced post bracket body is disposed in contact with the upper part of the vehicle body high strength member body and the upper surface of the column bracket from above so that the base bracket and the vehicle body high strength member body Attachment between the vehicle front side upper part and between the base bracket and the upper surface of the column bracket is performed using a high-strength member attachment part for a vehicle body and a column bracket attachment part, respectively.
  • the reinforced post bracket body is separated from the high rigidity structural portion and the column bracket by an emergency input load from the front between the high rigidity structural portion and the column bracket and the reinforced post bracket body.
  • an emergency separable and retractable structure that can be mounted so that it can be retracted, and the emergency separable and retractable structural part includes a sliding surface provided on the lower surface of the base bracket, and a high-rigidity structural part.
  • a guide surface portion provided on the vehicle front upper surface and the upper surface of the column bracket and capable of guiding a slide toward the rear and upward of the vehicle, and the high-strength member mounting portion for the vehicle body and the column bracket mounting portion.
  • the load absorbing mounting member is provided between the slide surface portion and the guide surface portion so that it can be selectively installed, and it can absorb an emergency input load by breaking by an emergency input load from the front of the vehicle.
  • a load absorption amount adjusting member capable of setting and adjusting the absorption amount of the input load.
  • the load absorbing mounting member and the load absorption amount adjusting member are broken by the emergency input load, so that the emergency input load can be absorbed.
  • the amount of absorption with respect to the emergency input load can be set and adjusted by adjusting the installation position and the number of installed load absorption amount adjusting members that can be selectively installed.
  • the post bracket has at least two vertical surface portions arranged in parallel with a space therebetween, and the two vertical surface portions are connected by the base bracket.
  • the post bracket has at least two parallel vertical surface portions arranged in parallel with a distance therebetween, and the two vertical surface portions are connected by the base bracket, so that only one vertical surface portion is formed. It can be structurally advantageous for load absorption as compared to a conventional post bracket. In other words, two parallel vertical surfaces are stretched to withstand loads and vibrations, thereby ensuring the vehicle longitudinal rigidity required during normal times (non-deformation) and for suppressing vibrations in the vehicle width direction. Rigidity can be ensured.
  • the deformability (shape) of the emergency input load from the front of the vehicle required in the event of an emergency is obtained by collapsing (bending deformation, plastic deformation) each of the two parallel vertical surfaces against the emergency input load. ) Can be obtained.
  • the deformability (shape) required in an emergency can be stabilized by deforming the two parallel vertical surfaces so that they fall sideways. Can be secured. That is, it is possible to cope with a load input from an oblique lateral direction (to obtain a stable deformation stroke). Therefore, as a whole, there is no need to increase the thickness of the post bracket or intentionally lower the strength by providing a weak portion such as a notch in the post bracket.
  • an attachment structure part for attaching the stay to the highly rigid structure part is provided between the highly rigid structure part and the stay, and the attachment structure part is connected to the highly rigid structure part by an emergency input load. It is an emergency separable mounting structure that can be separated from the stay.
  • the high-strength member main body (high-rigidity structure portion) for the vehicle body configured as a separate member and the stay are attached and integrated by the attachment structure portion.
  • the high strength member for vehicle bodies is arrange
  • the high-strength member main body for vehicle body extends substantially in the vehicle width direction.
  • the high-strength member main body (high-rigidity structure portion) for the vehicle body is supported on the vehicle compartment floor by the stay.
  • the high-strength member main body (highly rigid structure portion) for the vehicle body is supported on the front wall of the passenger compartment by the post bracket.
  • the vehicle body high-strength member main body (high rigidity structure portion) and the stay can be separated by the emergency separable mounting structure portion (high-rigid structure portion) and the stay mounting structure portion.
  • the rigid structure portion) and the stay can be separated.
  • the high-strength member main body (high-rigidity structure portion) for the vehicle body and the stay in an emergency and moving them by the required amount, the high-strength member main body for the vehicle body and the stay can be moved. Deformation can be suppressed. Further, it is possible to increase the strength of the high-strength member main body for the vehicle body and the stay as required.
  • the mounting structure portion includes a mounting surface portion provided in the high-rigidity structure portion, a mounting surface portion provided in the stay, and a fixing portion that fixes between both mounting surface portions, and is separable in the emergency.
  • the mounting structure portion has both the mounting surface portions as an emergency back-and-forth movable portion that can move substantially in the vehicle front-rear direction, and the fixing portion is provided between the high-rigidity structure portion and the stay by an emergency input load. It is characterized by having as an emergency releasable fixing part capable of releasing the fixed state.
  • the mounting structure part (emergency separable mounting structure part) between the lower part of the high-strength member body (high rigidity structure part) for the vehicle body and the upper end part of the stay is arranged between the mounting surface parts (the parts that can be moved back and forth in an emergency). At the same time, it can be attached by fixing with a fixing part (an emergency releasing part).
  • a fixing part an emergency releasing part.
  • the emergency separable mounting structure is fixed between the high strength member body (high-rigidity structure) for the vehicle body and the stay. Is released.
  • the emergency back and forth movable part functions to slide the vehicle body high-strength member main body (highly rigid structure portion) and the stay relatively in the vehicle longitudinal direction.
  • the emergency releasable fixing portion includes a load absorbing portion capable of absorbing an emergency input load when the fixed state between the high-rigidity structure portion and the stay is released. To do.
  • the load absorbing portion provided in the emergency-releasable fixing portion absorbs the load such as the emergency input load or moment. Can do.
  • This makes it possible to effectively prevent deformation of the high-strength member main body for the vehicle body and the stay due to an emergency input load or a moment without increasing the strength of the high-strength member main body for the vehicle body or the stay.
  • it is possible to reduce the amount of movement of the high-strength member body for the vehicle body and the stay.
  • FIG. 13 is a mounting view of the post bracket following FIG. 12. It is an expansion perspective view which shows the attachment state of a post bracket. It is a side view which shows the operation state of the post bracket in emergency. It is a fragmentary top view which shows the attachment position of a load absorption amount adjustment member. It is a fragmentary top view which shows the other attachment position of a load absorption amount adjustment member. It is a perspective view of the two vertical surface parts of a post bracket. It is a graph which shows the relationship between the deformation
  • FIG. 1 It is a fragmentary top view which shows the mode of a deformation
  • FIG. 1 It is a perspective view of the high strength member part structure for vehicle bodies concerning a prior art example. It is a side view of the high strength member part structure for vehicle bodies of FIG. It is a top view which shows the mode of a deformation
  • FIG. 28 is a bottom view of the stay mounting portion of FIG. 27. It is a figure which shows the other example of a stay attachment part. It is an operation
  • the present invention is mainly intended to effectively improve the strength and rigidity of a high-strength member body for a vehicle body.
  • FIG. 1 and FIG. 2 show a configuration diagram of this embodiment.
  • a vehicle such as an automobile is provided with a resin instrument panel 32 (see FIG. 2) in front of the passenger compartment 31. Inside the instrument panel 32, a metal high-strength member 33 for a vehicle body is provided.
  • reference numeral 34 denotes a vehicle width direction
  • 35 denotes a vehicle longitudinal direction
  • 36 denotes a vertical direction.
  • the vehicle body high strength member 33 includes a vehicle body high strength member main body 37 extending substantially in the vehicle width direction 34.
  • the vehicle body high-strength member body 37 provided in the front of the vehicle interior 31 is provided with side brackets 38 for attachment to left and right vehicle body panels (side panels, not shown) at both ends.
  • the side bracket 38 is made of metal and is fixed to the high strength member main body 37 by welding.
  • the high-strength member main body 37 for the vehicle body is provided mainly for supporting a steering column (not shown).
  • the high-strength member main body 37 for vehicle body is provided with a column bracket 39 for attaching a steering column at an intermediate portion in the vehicle width direction 34.
  • the column bracket 39 is for attaching a vehicle front side portion of the steering column.
  • the column bracket 39 is made of metal, and is fixed to a high-strength member main body 37 (a high-rigidity structure portion 64 described later).
  • the vehicle body high-strength member main body 37 fixes the lower part of the vehicle body high-strength member main body 37 to the vehicle interior floor portion 41 (floor panel, see FIG. 2) at an intermediate portion in the vehicle width direction 34.
  • a stay 42 for supporting the high strength member main body 37 in the vertical direction 36 is provided.
  • the stay 42 is made of metal.
  • the vehicle body high-strength member main body 37 has the vehicle front side portion of the vehicle body high-strength member main body 37 in the middle portion in the vehicle width direction 34 with respect to the vehicle compartment front wall 43 (see the dash panel, FIG. 2).
  • a post bracket 44 is provided which is fixed and supports the vehicle body high-strength member body 37 in the vehicle longitudinal direction 35.
  • the post bracket 44 is made of metal, and is fixed to a high-strength member main body 37 (a high-rigidity structure portion 64 described later).
  • the high-strength member main body 37 for the vehicle body includes a knee protector 47 that can receive the knees of the occupant and absorb the knee input loads 45 and 46 in an intermediate portion in the vehicle width direction 34 as necessary.
  • the knee protector 47 includes a knee protect bracket 48 attached to a lower portion of a high-strength member main body 37 for a vehicle body (a high-rigidity structure portion 64 described later), and a knee support member 49 that directly receives a passenger's knee.
  • the knee protect bracket 48 is made of metal.
  • the knee support member 49 is also made of metal.
  • the knee protect bracket 48 receives the upper knee protect bracket 51 that mainly receives the knee of the average occupant and absorbs the knee input load 45, and mainly receives the knee of the small occupant.
  • the lower knee protection bracket 52 capable of absorbing the knee input load 46 is provided separately on the upper and lower sides so that it can correspond to the physique of the occupant.
  • the upper knee protection bracket 51 has a “J” shape that is substantially laterally folded in a side view.
  • the lower knee protect bracket 52 has a substantially “V” shape in a side view.
  • the upper knee protect bracket 51 is welded and fixed in the middle of the vertically extending portion of the lower knee protect bracket 52 as shown in the figure.
  • the lower knee protect bracket 52 has an upper end portion of a vertically extending portion fixed to a high-strength member main body 37 (a high-rigidity structure portion 64 described later).
  • the knee protect bracket 48 is provided in a pair of left and right substantially corresponding to both occupants' knees, and the knee support member 49 is provided at the distal end of the pair of left and right knee protect brackets 48 (upper knee protect bracket 51 and The lower knee protection bracket 52 is installed between the vehicle interior side end surfaces).
  • the knee support member 49 is disposed inside the instrument panel 32.
  • the vehicle body high-strength member structure of the present embodiment has the following configuration.
  • a high-rigidity structure portion 64 having a plurality of closed cross-section portions 61 to 63 is provided at least in the middle portion of the high-strength member main body 37 for the vehicle body. Then, the stay 42, the post bracket 44, and the knee protector 47 are attached (concentrated) to the high-rigidity structural portion 64.
  • the upper end side portion 65 of the stay 42 is provided with a cross-section enlarged portion 67 whose cross section is larger than that of the lower end side portion 66.
  • This cross-sectional enlarged portion 67 is connected to the lower surface of the high-rigidity structure portion 64 (connection portion 68).
  • the post bracket 44 is bent and deformed before the vehicle body high-strength member main body 37 with respect to the emergency input load 71 from the front in the vehicle front-rear direction 35, and the occupant's knee input from the rear in the vehicle front-rear direction 35
  • the reinforced post bracket 73 has a strength that does not bend and deform before the vehicle body high-strength member body 37 with respect to the loads 45 and 46.
  • the high-rigidity structural portion 64 having the plurality of closed cross-section portions 61 to 63 may be provided on the whole or part of the high-strength member main body 37 for the vehicle body.
  • the high-rigidity structural portion 64 is partial. That is, in FIG. 1, the high-rigidity structure portion 64 has a high-strength structural portion 64 when the vehicle body high-strength member main body 37 is divided into three ranges of a driver seat side portion, a passenger seat side portion, and a center portion. It is partially provided at a position corresponding to the inner half of the part.
  • the outer half of the driver seat side portion, the passenger seat side portion, and the center portion are configured by pipe members 75 and 76 having different diameters and circular sections.
  • the pipe members 75 and 76 (inner ends thereof) are fixed to the high-rigidity structural portion 64 by press-fitting or the like. Further, the above-described side brackets 38 are attached to the outer ends of the pipe members 75 and 76, respectively.
  • the high-strength member main body 37 for a vehicle body is for a right-hand drive vehicle.
  • the plurality of closed cross-section portions 61 to 63 each have a cylindrical shape with a constant cross-sectional size and shape and extending in the vehicle width direction 34.
  • the high-rigidity structural portion 64 has a triple cylindrical shape in which three cylindrical cross-section portions 61 to 63 are adjacent to each other in the vehicle longitudinal direction 35.
  • the number of the closed cross-section portions 61 to 63 may be any number as long as it is two or more, but three is optimal in terms of structure and function. Further, regarding the arrangement of the plurality of closed cross-section portions 61 to 63, it is optimal to increase the strength in the vehicle longitudinal direction 35 so as to be adjacent to the vehicle longitudinal direction 35. Thereby, the highly rigid structure part 64 becomes a thing longer in the vehicle front-back direction 35 than usual.
  • the arrangement of the plurality of closed cross-section portions 61 to 63 is not limited to this.
  • the plurality of closed cross-section portions 61 to 63 are larger on the front side of the vehicle (closed cross-section portion 61), smaller in the middle (closed cross-section portion 62), and on the rear side of the vehicle (closed cross-section portion 63). Are configured so as to have the smallest size.
  • the highly rigid structure part 64 has a wedge shape in a side view.
  • the closed cross section 61 on the vehicle front side has a size (inner diameter dimension) and a shape (circular shape) in which the pipe members 75 and 76 can be press-fitted, and serves as a pipe member connecting portion.
  • Such a high-rigidity structure portion 64 can be produced by, for example, extruding a light alloy.
  • the column bracket 39 is attached to the lower part of the front side of the vehicle substantially at the center in the vehicle width direction 34 of the highly rigid structure portion 64.
  • the stay 42 is attached to the lower surface of the highly rigid structure portion 64 on the vehicle interior side.
  • the post bracket 44 is attached to the upper part of the front side of the vehicle in the vehicle width direction 34 of the high-rigidity structural portion 64 and to the upper side of the column bracket 39.
  • the pair of knee protection brackets 48 of the knee protector 47 are respectively attached to the lower surfaces of the high-rigidity structure portion 64 near both ends in the vehicle width direction 34.
  • the high-rigidity structure portion 64 has a downward column bracket mounting surface to which the column bracket 39 can be attached at the lower front portion of the vehicle, and an upward post bracket attachment to which the post bracket 44 can be attached to the upper front portion of the vehicle. And a horizontal mounting surface to which the stay 42 and the knee protect bracket 48 can be mounted. Furthermore, a column mounting surface for directly mounting a vehicle interior side portion of the steering column is provided on the vehicle interior side of the horizontal mounting surface. The column mounting surface is integrally formed with a column mounting screw hole.
  • the stay 42 is disposed directly below the high-rigidity structural portion 64 (in the vertical direction 36).
  • the stay 42 has a U-shaped cross-sectional shape in the vehicle width direction 34, and is constituted by a metal plate material that extends substantially in the vertical direction.
  • the upper end side portion 65 and the lower end side portion 66 of the stay 42 are provided with a reinforcing shape portion by embossing, if necessary.
  • the cross-sectional enlarged portion 67 of the upper end side portion 65 of the stay 42 has a gradually expanding shape in which the vehicle front side portion expands upward.
  • the upper end portion of the cross-sectional enlarged portion 67 has a length in the vehicle front-rear direction 35 that is substantially the same as the horizontal mounting surface and the column mounting surface so as to be able to contact and be fixed to the entire lower surface of the high-rigidity structural portion 64 in the vehicle front-rear direction 35. , Have the same (unevenness) shape.
  • connection part 68 of the cross-sectional enlarged part 67 and the lower surface of the highly rigid structure part 64 is the same material, it can be joined by welding. Moreover, if it is a different material, it can be set as mechanical joining, adhesion
  • the post bracket 44 can be a reinforced post bracket 73, for example, by increasing the plate thickness or changing to a high-strength material.
  • the post bracket 44 is formed as an independent reinforcing structure having a triangular shape (closed loop shape) in a side view, thereby providing a reinforced post bracket 73 that is structurally reinforced.
  • the reinforced post bracket 73 having a triangular shape in a side view is disposed in contact with the upper surface of the column bracket 39 and an upward post bracket mounting surface provided at the upper part of the high-rigidity structure portion 64 on the front side of the vehicle. And is fixed using a fixing member.
  • the vehicle body high-strength member main body 37 basically functions to support a steering column (not shown) via a column bracket 39.
  • the stay 42 provided at the intermediate portion in the vehicle width direction 34 of the high-strength member main body 37 (high-rigidity structure portion 64) for the vehicle body has a lower portion of the high-strength member main body 37 (high-rigidity structure portion 64) for the vehicle body. It is fixed to the vehicle compartment floor portion 41 (floor panel) and functions to support the high-strength member main body 37 for the vehicle body mainly in the vertical direction 36.
  • the stay 42 can suppress vibrations in the vertical direction 36 of the steering column and the high strength member main body 37 for the vehicle body.
  • the post bracket 44 provided at the intermediate portion in the vehicle width direction 34 of the vehicle body high-strength member main body 37 is the front of the vehicle-body high-strength member main body 37 (high-rigidity structure portion 64).
  • the side portion is fixed to the vehicle compartment front wall 43 (dash panel) and functions to support the vehicle body high-strength member main body 37 mainly in the vehicle front-rear direction 35.
  • the knee protector 47 provided at the intermediate portion in the vehicle width direction 34 of the high-strength member main body 37 (high-rigidity structural portion 64) for the vehicle body is knee-protected in the event of an emergency, with the knee support member 49 receiving the occupant's knee.
  • the bracket 48 When the bracket 48 is bent and deformed (collapsed), it functions to absorb the knee input loads 45 and 46.
  • the upper knee protection bracket 51 is mainly bent and deformed (collapsed) to absorb the knee input load 45, and in the case of a small occupant, the lower knee mainly.
  • the knee protection bracket 52 functions to absorb the knee input load 46 when it is bent and deformed (collapsed).
  • a vehicle body high-strength member main body 37 provided in front of the vehicle interior 31 and extending substantially in the vehicle width direction, and provided in at least an intermediate portion of the vehicle body high-strength member main body 37.
  • a high-rigidity structural portion 64 having closed cross-section portions 61 to 63, a stay 42 that is attached to the high-rigidity structural portion 64 and supports the vehicle body high-strength member main body 37 in the vertical direction, and a high-rigidity structural portion 64.
  • a post bracket 44 that supports the vehicle body high-strength member main body 37 in the vehicle front-rear direction and a high-rigidity structure portion 64, and when an emergency input load in the vehicle front-rear direction is applied, the knee input load is received by the occupant's knee According to the structure including the knee protector 47 that can absorb water, the following operational effects can be obtained.
  • the vehicle body high-strength member main body 37 basically has rigidity capable of supporting the steering column.
  • the lower portion of the high-strength member main body 37 for the vehicle body can be supported in the up-down direction 36 by the stay 42 provided at the intermediate portion in the vehicle width direction 34 of the high-strength member main body 37 for the vehicle body (high-rigidity structure portion 64).
  • the vehicle front side portion of the vehicle body high-strength member main body 37 in the vehicle front-rear direction 35 is provided by the post bracket 44 provided at the intermediate portion in the vehicle width direction 34 of the vehicle body high-strength member main body 37 (high-rigidity structure portion 64). Can be supported.
  • the knee protector 47 provided in the middle portion of the vehicle body high-strength member main body 37 (high-rigidity structure portion 64) in the vehicle width direction 34 receives and absorbs the knee input loads 45 and 46 of the occupant in an emergency. it can.
  • the strength and rigidity of at least the middle portion of the high-strength member main body 37 for vehicle body are provided. Can be improved. Accordingly, the bending or twisting (circumferential direction) of the high strength member main body 37 for the vehicle body can be reduced, and the movement or bending of the high strength member main body 37 for the vehicle body can be prevented.
  • the upper end side portion 65 of the stay 42 is provided with a cross-sectional enlarged portion 67 whose cross section is larger than that of the lower end side portion 66, and the cross-sectional enlarged portion 67 is attached to the lower surface of the high-rigidity structural portion 64.
  • the cross-sectional enlarged portion 67 provided in the upper end side portion 65 of the stay 42 has a high section modulus, the deformation of the stay 42 itself can be reduced.
  • the stay 42 moves the vehicle body high-strength member main body 37 (such as the high-rigidity structural portion 64) in the vehicle longitudinal direction 35 or the vertical direction 36. Can be effectively suppressed.
  • the stay 42 can prevent the high-strength member main body 37 for the vehicle body from moving backward with respect to the emergency input load 71 from the front of the vehicle. Further, for example, the stay 42 suppresses the vehicle body high-strength member main body 37 from moving upward or forward of the vehicle by the knee input loads 45 and 46 to the knee protector 47 (see loads F1 and F2, FIG. 2). It becomes possible.
  • the stay 42 can effectively suppress the twist of the high-strength member main body 37 for the vehicle body (high-rigidity structural portion 64).
  • the stay 42 generates a reaction force against the moment M generated in the high-strength member main body 37 for the vehicle body by the knee input loads 45 and 46 to the knee protector 47, so that the high-strength member main body 37 for the vehicle body (high It is possible to suppress the torsion of the rigid structure portion 64).
  • the strength of the vehicle body high-strength member body 37 necessary for satisfying the performance of the knee protector 47 can be reduced by the stay 42 having the cross-sectional enlarged portion 67, and the stay 42 having the cross-sectional enlarged portion 67.
  • the dependence of the knee protector 47 on the high-strength member main body 37 for the vehicle body can be further reduced.
  • the post bracket 44 is bent and deformed before the vehicle body high-strength member main body 37 with respect to the emergency input load 71 from the front in the vehicle front-rear direction 35, and the passenger from the rear in the vehicle front-rear direction 35
  • the following effects can be obtained by using the reinforced post bracket 73 having a strength that does not bend and deform before the high strength member main body 37 for the knee input loads 45 and 46.
  • the high-strength member main body 37 for the vehicle body is obtained by the effect of improving the rigidity and strength of the high-strength member main body 37 for the vehicle body by the high-rigidity structural portion 64 and the effect of suppressing the movement and torsion of the high-strength member main body 37 for the vehicle body by the stay 42. Therefore, the knee input loads 45 and 46 to the knee protector 47 can be received only by the high-strength member main body 37 for the vehicle body. This eliminates the need to bend and deform the post bracket 44 to absorb the knee input loads 45 and 46 before the high-strength member main body 37 for the vehicle body is bent, so that the strength of the post bracket 44 can be increased. It becomes.
  • the reinforced post bracket 73 is bent and deformed to absorb the load with respect to the emergency input load 71 from the front in the vehicle front-rear direction 35.
  • the reinforced post bracket 73 is not bent and deformed with respect to the occupant's knee input loads 45 and 46 from the rear in the vehicle front-rear direction 35, and the reinforced post bracket 73 and the vehicle body high-strength member main body 37 are not deformed.
  • the knee input loads 45 and 46 function together.
  • both the rearward movement of the high strength member body 37 for the vehicle body due to the emergency input load 71 from the front and the forward movement and twist of the high strength member body 37 for the vehicle body due to the knee input loads 45 and 46 are both. Both can be suppressed and prevented.
  • the strength of the high strength member body 37 for the vehicle body necessary for satisfying the performance of the knee protector 47 can be reduced by the reinforced post bracket 73, and the vehicle body of the knee protector 47 can be reduced by the reinforced post bracket 73.
  • the dependence on the high strength member main body 37 can be further reduced.
  • the steering support rigidity can also be increased, so that the degree of freedom of material selection is increased, and the weight of other parts of the high strength member main body 37 for the vehicle body is reduced accordingly. Can be achieved.
  • This example is mainly intended to improve the overall performance of the post bracket and to ensure a deformation stroke even when the input direction of the emergency input load is deviated.
  • reference numeral 241 denotes a vehicle width direction
  • 242 denotes a vehicle front-rear direction
  • 243 denotes a vertical direction.
  • a vehicle such as an automobile is provided with a resin instrument panel 245 (see FIG. 8) in front of the passenger compartment 244. Inside the instrument panel 245, a metal high-strength member 246 for a vehicle body is provided.
  • the vehicle body high-strength member 246 provided in front of the vehicle interior 244 includes a vehicle body high-strength member main body 247 extending substantially in the vehicle width direction 241.
  • the high-strength member main body 247 for vehicle body includes side brackets 248 that can be attached to left and right vehicle body panels (side panels, not shown) at both ends thereof.
  • the side bracket 248 is integrally fixed (welded, press-fitted, bonded, screwed, etc.) to the high strength member main body 247 for the vehicle body.
  • the vehicle body high-strength member main body 247 fixes the lower portion of the vehicle body high-strength member main body 247 to the passenger compartment floor 249 (floor panel, see FIG. 2) at an intermediate portion in the vehicle width direction 241.
  • the stay 251 extends substantially in the vertical direction 243.
  • the upper end of the stay 251 is fixed (welded, press-fitted, bonded, screwed, etc.) to the high-strength member main body 247 (high-rigidity structure portion 268 described later).
  • the vehicle body high-strength member main body 247 has a column bracket capable of attaching a steering column (not shown) to at least the lower portion of the vehicle body high-strength member main body 247 on the driver seat side in the middle in the vehicle width direction 241. 253.
  • the column bracket 253 is for attaching a vehicle front side portion of the steering column.
  • the vehicle body high-strength member main body 247 includes a post bracket 254 that can support the vehicle front side portion of the vehicle body high-strength member main body 247.
  • the post bracket 254 is interposed between the vehicle compartment front wall portion 255 (dash panel) and the vehicle front side portion of the vehicle body high-strength member main body 247 (high-rigidity structure portion 268 described later).
  • Side view having a body support portion 256 to be mounted and a column support portion 257 interposed between a vehicle compartment front wall portion 255 (dash panel) and a column bracket 253 (front end portion) on the vehicle front side. It has almost bifurcated shape.
  • a front wall mounting portion 258 is provided. As shown in FIG. 9, the front wall mounting portion 258 includes a contact surface portion 261 that can contact the front wall portion 255 of the vehicle compartment, and a vehicle body fastening portion such as a screw hole provided in the contact surface portion 261. 262.
  • the above-described high-strength member main body 247 for the vehicle body has a high-rigidity structure portion 268 having a plurality of closed cross-section portions 265 to 267 as shown in FIG.
  • the high-rigidity structure portion 268 is partially provided at a position corresponding to the inner half on the driver's seat side.
  • pipe members 271 and 272 having two circular sections are fixed to both ends of the high-rigidity structure portion 268 by press-fitting or the like.
  • Such a highly rigid structural portion 268 can be made by, for example, extruding a light alloy.
  • the stay 251, the post bracket 254, and the knee protector 273 are attached to the highly rigid structure portion 268 in a concentrated manner.
  • the knee protector 273 receives the knees of the occupant in an emergency and absorbs the knee input loads 274 and 275 (see FIG. 8).
  • the knee protector 276 and the pair of right and left knee protect brackets 276 are provided.
  • a knee support member 277 installed between the knee protection brackets 276.
  • Each knee protection bracket 276 further includes an upper knee protection bracket 278 mainly for absorbing the knee input load 274 of an average occupant and a knee input load 275 for mainly a small passenger.
  • the lower knee protect bracket 279 is provided separately.
  • the knee support member 277 is not directly attached to the instrument panel 245 but is disposed inside the instrument panel 245.
  • the high-rigidity structure portion 268 has a column bracket mounting surface 282 having a downward inclined surface to which the column bracket 253 can be mounted on the vehicle front side lower portion 281, and the vehicle front side upper portion. 283 has an upwardly inclined post bracket mounting surface 284 to which the post bracket 254 can be mounted, and a common horizontal mounting surface to which the stay 251 and the knee protection bracket 276 can be mounted on almost the entire lower surface thereof. 285. Further, a column mounting surface 286 for directly mounting a vehicle interior side portion of the steering column is provided on the vehicle interior side of the horizontal mounting surface 285. The column mounting surface 286 is configured such that the middle portion is thicker than the other portions of the high-rigidity structural portion 268, and the column mounting surface 286 has a thickened portion with a column mounting screw hole 87. Is formed.
  • the high-rigidity structure portion 268 has a shape that is longer in the vehicle front-rear direction 242 than a pipe having a circular cross section in order to improve the strength in the vehicle front-rear direction 242.
  • the above-described stay 251 has a gradually expanding shape such that the upper portion has a length that combines the horizontal mounting surface 285 and the column mounting surface 286 of the high-rigidity structural portion 268 with respect to the vehicle longitudinal direction 242. (Gradually expanded shape portion 288). Further, the upper end portion of the stay 251 has a bent shape capable of coming into contact with both the horizontal mounting surface 285 and the column mounting surface 286.
  • the vehicle body high-strength member structure of the present embodiment has the following configuration.
  • (A) As shown in FIGS. 11, 12, and 13, a base that can be placed in contact with the vehicle front side upper part 283 of the vehicle body high strength member main body 247 and the upper surface 291 of the column bracket 253 from above.
  • a bracket 292 is provided.
  • a base bracket 292 is integrally constructed and connected between the vehicle rear side end portion of the main body support portion 256 of the bifurcated post bracket 254 and the lower end portion of the column support portion 257, so that high strength for the vehicle body is obtained.
  • the reinforced post bracket body 293 is configured separately from the member main body 247 and has a substantially triangular shape (closed loop structure) in a side view. Then, as shown in FIG.
  • the base bracket 292 is formed on the vehicle front side upper part 283 between the base bracket 292 constituting the reinforced post bracket body 293 and the vehicle front side upper part 283 of the high-rigidity structure portion 268.
  • a high strength member mounting portion 294 for the vehicle body to be mounted is provided.
  • a column bracket attachment portion 295 for attaching the base bracket 292 to the column bracket 253 is provided between the base bracket 292 and the upper surface 91 of the column bracket 253.
  • the vehicle body high-strength member mounting portion 294 and the column bracket mounting portion 295 are mounting holes, respectively.
  • the mounting hole is a round hole or a long hole.
  • only the mounting hole on the base bracket 292 side of the column bracket mounting portion 295 is a long hole extending in the vehicle front-rear direction 242 until reaching the vehicle front side end portion of the base bracket 292, and the others are round holes. It is.
  • the reinforced post bracket is provided between the high-rigidity structure portion 268 and the column bracket 253 and the reinforced post bracket body 293 by an emergency input load 2101 (see FIG. 8) from the front.
  • An emergency separable retractable structure portion 2102 is provided that can be attached so that the body 293 can be separated and retracted from the high strength member main body 247 for the vehicle body and the column bracket 253.
  • the emergency separable and retractable structure portion 2102 is provided on the slide surface portion 2103 provided on the lower surface of the base bracket 292, the upper surface 291 of the column bracket 253, and the upper portion 83 on the vehicle front side of the high-rigidity structure portion 268.
  • the slide surface portion 2103 includes a guide surface portion 2104 capable of guiding a slide toward the rear and upward of the vehicle.
  • the emergency separable retractable structure portion 2102 is provided in the high-strength member mounting portion 294 for the vehicle body and the column bracket mounting portion 295, and is broken by the emergency input load 2101 from the front of the vehicle. Breaking by an emergency input load 2101 from the front, which can be installed selectively between the load absorbing mounting member 2105 and the sliding surface portion 2103 and the guide surface portion 2104, which can absorb the emergency input load 2101.
  • a load absorption amount adjusting member 2106 capable of setting and adjusting the absorption amount of the emergency input load 2101 is provided.
  • the slide surface portion 2103 and the guide surface portion 2104 can be formed in, for example, a downwardly convex arc shape or a polygonal shape approximating such an arc shape. Further, a rivet or the like can be used for the load absorbing mounting member 2105 and the load absorbing amount adjusting member 2106.
  • the load absorption amount adjusting member 2106 can be arranged side by side on the width center line 2107 of the slide surface portion 2103 and the guide surface portion 2104 as shown in FIG. 16, for example.
  • it can be arranged along the width center line 2107 on both sides of the width center line 2107 as shown in FIG.
  • the post bracket 254 has at least two vertical surface portions 2109 arranged in parallel with an interval 2108.
  • the two vertical surface portions 2109 are connected by a base bracket 292.
  • each of the vertical surface portions 2109 has the main body support portion 256 and the column support portion 257 described above, and has a substantially bifurcated shape in a side view.
  • the vertical surface portion 2109 is oriented in a direction substantially orthogonal to the vehicle width direction 241.
  • the two vertical surface portions 2109 are also connected to each other at the front wall attachment portion 258.
  • an opening 2111 is formed in the front connecting surface portion 2111.
  • the high strength member main body 247 for the vehicle body is attached to the left and right vehicle body panels (side panels) by the side brackets 248 provided at both ends thereof.
  • the high-strength member main body 247 for the vehicle body basically functions to support the steering column via the column bracket 253.
  • the stay 251 provided in the middle portion of the vehicle body high-strength member main body 247 in the vehicle width direction 241 has a lower portion (high-rigidity structure portion 268) of the vehicle body high-strength member main body 247 and a vehicle compartment floor 249 (floor
  • the high-strength member main body 247 for the vehicle body mainly functions in the vertical direction 243.
  • the stay 251 can suppress vibrations in the vertical direction 243 of the steering column and the high-strength member main body 247 for the vehicle body.
  • the post bracket 254 provided on the driver seat side of the intermediate portion of the vehicle body high-strength member main body 247 in the vehicle width direction 241 has a main body support portion 256 having a vehicle body high-strength member main body 247 (high-rigidity structure portion 268).
  • the vehicle front side portion of the vehicle is fixed to the vehicle compartment front wall portion 255 (dash panel, see FIG. 8), and functions to support the vehicle body high-strength member main body 247 mainly in the vehicle front-rear direction 242.
  • the post bracket 254 has a column support portion 257 disposed in the vehicle front-rear direction 242 and vertical direction 243 and the circumferential direction (rotation direction of the vehicle body high-strength member main body 247 via the column bracket 253 on the vehicle front side. ) To support.
  • the reinforced post bracket body 293 may have high rigidity. it can. As a result, the weight of the post bracket 254 or the reinforced post bracket body 293 can be reduced.
  • the base bracket 292 of the reinforced post bracket body 293 is disposed in contact with the vehicle front side upper part 283 of the high strength member main body 247 and the upper surface 291 of the column bracket 253 from above,
  • the high strength member mounting portion 294 for the vehicle body and the column bracket mounting portion 295 are provided between the vehicle body high strength member main body 247 and the vehicle front side upper portion 283 and between the base bracket 292 and the upper surface 291 of the column bracket 253, respectively. Install using.
  • the post bracket 254 is directly welded and fixed to the high-strength member main body 247 for the vehicle body and the column bracket 253, the influence of distortion due to welding is reduced, and the mounting accuracy of the reinforced post bracket body 293 is increased. It becomes possible to improve.
  • the guide surface portion 2104 slides rearward and upward along the vehicle, so that the reinforced post bracket body 293 can be stably and reliably not affected by the movement or bending deformation of the high-strength member main body 247 for the vehicle body. It is possible to escape to the rear of the vehicle.
  • the post bracket 254 has at least two parallel vertical surface portions 2109 arranged in parallel with a distance 2108, and the two vertical surface portions 2109 are connected by the base bracket 292. Compared to a normal post bracket 254 having only one vertical surface portion 2109, it can be structurally advantageous for load absorption.
  • the two parallel vertical surface portions 2109 are stretched to withstand loads and vibrations, thereby ensuring the rigidity in the vehicle front-rear direction 242 required during normal times (when not deformed) and suppressing vibrations in the vehicle width direction 241. Therefore, it is possible to ensure lateral rigidity.
  • the main body support portions 56 of the two parallel vertical surface portions 2109 are crushed (bently deformed or plastically deformed) with respect to the emergency input load 2101, so that in an emergency (during deformation).
  • the necessary deformability (shape) for the emergency input load 2101 from the front of the vehicle can be obtained.
  • the main body support portion 56 of the two parallel vertical surface portions 2109 is deformed so as to fall sideways.
  • the deformability (shape) necessary in an emergency (deformation) can be stably secured.
  • This example is mainly intended to increase the strength and rigidity of the high-strength member body for a vehicle body when an emergency input load is applied.
  • FIG. 26 to FIG. 30 show this embodiment and its modifications.
  • reference numeral 331 indicates the vehicle width direction
  • reference numeral 332 indicates the vehicle longitudinal direction
  • reference numeral 333 indicates the vertical direction.
  • Vehicles such as automobiles have a resin instrument panel in front of the passenger compartment. Inside the instrument panel, a metal high-strength member for a vehicle body is provided.
  • the front of the passenger compartment (the passenger compartment front 334) includes a passenger compartment front wall 335, a passenger compartment floor 336, and a passenger compartment side wall 337.
  • the vehicle body high-strength member 341 disposed in the passenger compartment front portion 334 includes a vehicle body high-strength member main body 342 extending substantially in the vehicle width direction 331.
  • the vehicle body high-strength member 341 includes side brackets 343 for attaching both ends of the vehicle body high-strength member main body 342 to the left and right vehicle interior side walls 337.
  • the high-strength member 341 for the vehicle body includes a stay 344 that supports the high-strength member main body 342 for the vehicle body by fixing the high-strength member main body 342 (a high-rigidity structure portion 381 described later) to the passenger compartment floor 336. I have.
  • the high-strength member 341 for the vehicle body is a post bracket 345 that supports the high-strength member main body 342 for the vehicle body by fixing the high-strength member main body 342 (a high-rigidity structure portion 381 to be described later) to the vehicle compartment front wall 335. It has.
  • the vehicle body high-strength member structure of the present embodiment has the following configuration.
  • the high-strength member main body 342 for the vehicle body and the stay 344 are configured as separate members.
  • An attachment structure portion 346 capable of attaching both of them is provided between the high-strength member main body 342 for the vehicle body and the stay 344.
  • the mounting structure portion 346 is an emergency separable mounting structure portion 347 in which the vehicle body high-strength member main body 342 and the three stays 44 can be separated by the emergency input load 3F.
  • the attachment structure portion 346 includes an attachment surface portion 348 provided on the high-strength member main body 342 for vehicle body (a high-rigidity structure portion 381 described later) and an attachment surface portion 349 provided on the stay 344.
  • the attachment structure portion 346 includes a fixing portion 351 that fixes both the attachment surface portions 348 and 349.
  • the emergency separable attachment structure portion 347 includes the attachment surface portions 348 and 349 in FIG. 27 as emergency emergency front and rear movable portions 352 and 353 that can move in the vehicle front-rear direction 332, respectively.
  • the emergency detachable attachment structure portion 347 is configured such that the fixing portion 351 in FIG.
  • the mounting surface portions 348 and 349 or the emergency back and forth movable portions 352 and 353 are substantially horizontal and flat and can be slidably contacted with each other (horizontal surface portion and slidable contact surface portion).
  • the mounting surface portions 348 and 349 or the emergency back and forth movable portions 352 and 353 can regulate the movement of either the vehicle body high-strength member main body 342 or the stay 344 in either the vehicle longitudinal direction 332.
  • a simple stopper portion 350 can also be provided. The stopper portion 350 will be described later.
  • the fixing portion 351 can be, for example, a fastening and fixing portion 357 using a screw 355 and a screw hole 356, as shown in FIG. And in order to make the fixing
  • the fixing portion 351 can be, for example, a caulking fixing portion using a rivet, although not particularly illustrated.
  • This rivet can be used as it is as an emergency releasable fixing part 354 by setting its strength optimally (breakable caulking fixing part).
  • the fixing portion 351 can be, for example, a locking fixing portion 367 having a hook portion 365 and a hook locking hole portion (not shown) as shown in FIG.
  • the hook portion 365 can be used as it is as an emergency releasable fixing portion 354 by setting its strength optimally (deformable locking fixing portion 368).
  • the hook portion 365 and the hook locking hole portion are provided on either the high-strength member main body 342 (high-rigidity structure portion 381) or the stay 344, respectively.
  • the emergency releasable fixing portion 354 includes a load absorbing portion 371 capable of absorbing a load when the high-strength member main body 342 (high-rigidity structure portion 381) for the vehicle body and the stay 344 are separated.
  • the emergency input load 3F (see FIG. 30) absorbed by the load absorbing portion 371 includes, for example, a load from the front of the vehicle (primary load 3Fa), a load from the rear of the vehicle (secondary load 3Fb), and the like. Yes (see FIG. 26).
  • the emergency input load 3F from the rear of the vehicle includes, for example, a knee input load by an occupant.
  • the long hole 358 in the movable fastening fixing portion 359 as the emergency releasable fixing portion 354 has a narrow groove portion 372 that is thinner (smaller in width) than the diameter of the screw 355 except for the central portion through which the screw 355 is passed.
  • the screw 355 pushes the narrow groove portion 372 so that the load can be absorbed. That is, the emergency releasable fixing portion 354 can be the load absorbing portion 371.
  • a breakable caulking fixing portion such as a rivet as the emergency releasable fixing portion 354 can be provided with a load absorbing portion 371 by setting the breaking load to be optimal for load absorption.
  • the locking fixing portion 367 as the emergency releasable fixing portion 354 can include the load absorbing portion 371 by setting the deformation load of the hook portion 365 to be optimal for load absorption.
  • the vehicle body high-strength member main body 342 described above includes at least a high-rigidity structure portion 381 as shown in FIG.
  • the high-rigidity structural portion 381 may be provided as a whole with respect to the high-strength member main body 342 for the vehicle body. However, in this embodiment, the portion that requires the most strength and rigidity of the high-strength member main body 342 for the vehicle body. Is partially provided. In FIG. 26, the high-rigidity structural portion 381 is provided at the core portion on the driver's seat side of the high-strength member main body 342 for the vehicle body.
  • the high-rigidity structure portion 381 has a plurality of closed cross-sectional portions 382 (see FIG. 27).
  • the high-rigidity structural portion 381 is formed by integrally connecting three closed cross-section portions 382 extending substantially in the vehicle width direction 331 in the vehicle longitudinal direction 332.
  • the three closed cross sections 382 are configured to be larger on the vehicle front side in the vehicle front-rear direction 332 and smaller on the vehicle rear side.
  • the high-rigidity structure portion 381 is made of, for example, a light metal or a light alloy. Such a high-rigidity structural portion 381 made of light metal or light alloy can be manufactured by extrusion.
  • the highly rigid structural portion 381 obtained by the extrusion process has a uniform cross section with respect to the vehicle width direction 331.
  • a metal pipe-like member 384 is provided on both sides of the high-rigidity structure portion 381 in the high-strength member main body 342 for the vehicle body.
  • the metal pipe-like member 384 has the same diameter in this embodiment.
  • the metal pipe-like member 384 is fitted and fixed to the closed cross-sectional portion 82 (in this case, the largest closed cross-sectional portion 382 located on the front side of the vehicle) of the high-rigidity structural portion 381.
  • the highly rigid structure portion 381 has a relatively large (long) dimension in the vehicle front-rear direction 332 by connecting the plurality of closed cross-section portions 382 integrally in the vehicle front-rear direction 332, so that The dimension in the direction 323 is relatively small (thickness is thin).
  • the high-rigidity structural portion 381 has a high strength and rigidity with respect to the emergency input load 3F in the vehicle longitudinal direction 332.
  • mounting surface portions 348 and 349 or the emergency back and forth movable portions 352 and 353 are formed by forming a substantially flat or substantially flat surface on the lower surface side of the highly rigid structural portion 381. Has been.
  • An inclined portion 385 that is inclined upward is formed on the vehicle rear side portion on the lower surface side of the high-rigidity structure portion 381 (see FIG. 28).
  • the inclined portion 385 has an inclination substantially corresponding to the steering column because the steering column (not shown) is inclined upward from the front of the vehicle to the rear, and the steering column (the vehicle rear side fixing portion thereof). ) Can be used as a column rear mounting portion.
  • the inclined portion 385 described above is used as the stopper surface 387 of the stopper portion 350 described above that can restrict the movement of the stay 344 relative to the vehicle front relative to the high-strength member main body 342 (high-rigidity structure portion 381) for the vehicle body. Is possible.
  • a stopper surface 388 corresponding to the above-described stopper surface 387 is provided as a stopper portion 350 on the vehicle rear side portion of the upper end portion of the stay 344.
  • the stopper portion 350 described above has a high-rigidity structure. It is provided at the vehicle front side portion on the lower surface side of the portion 381.
  • the above-mentioned stay 344 is made of metal.
  • the stay 344 is formed by bending a single metal plate so as to have a substantially U-shaped cross section in plan view.
  • the stay 344 is attached to a substantially central portion of the intermediate portion in the vehicle width direction 331 of the high-rigidity structural portion 381 of the high-strength member main body 342 for the vehicle body.
  • the stay 344 extends substantially in the vertical direction 333.
  • the upper end portion of the stay 344 is fixed to the lower portion (lower surface portion) of the high-strength member main body 342 (high-rigidity structure portion 381) for the vehicle body.
  • the above-mentioned mounting surface portion 349 (emergency back and forth movable portion 353) is integrally formed at the upper end portion of the stay. Further, the lower end portion of the stay 344 is bolted to the passenger compartment floor 336 (in this embodiment, bolted in the vehicle width direction 6).
  • the stay 344 is configured such that its upper end portion has a larger horizontal cross section than its lower end portion.
  • the upper end portion of the stay 344 has a cross-sectional enlarged portion 391 whose horizontal cross-section increases as it goes upward.
  • the upper end portion of the cross-sectional enlarged portion 391 is configured to be substantially equal to the length dimension of the highly rigid structure portion 381 in the vehicle front-rear direction 32.
  • the stay 344 has a vehicle rear side edge substantially linearly extending in the vertical direction, and the vehicle front side edge extends substantially linearly in the vertical direction from the lower end portion to the intermediate portion. It extends from the vehicle to incline forward.
  • the post bracket 345 described above is made of metal.
  • the post bracket 345 has a substantially triangular shape when viewed from the side.
  • the post bracket 345 is configured to have such a strength that it is not crushed by the emergency input load 3F.
  • the above-described high strength member 341 for the vehicle body includes a column bracket 395 capable of attaching a steering column (a vehicle front side fixing portion thereof) to the high rigidity structural portion 381 of the high strength member main body 342 for the vehicle body.
  • the column bracket 395 is fixed to the vehicle front side portion of the high-rigidity structure portion 381.
  • the post bracket 345 described above has a mounting structure that is the same as the relationship between the high-strength member main body 342 (the high-rigidity structural portion 381) for the vehicle body and the stay 344 with respect to the high-rigidity structural portion 381 and the column bracket 395. ing.
  • the high-rigidity structure portion 381, the column bracket 395, and the post bracket 345 are configured as separate members, and an emergency-separable mounting structure portion is provided in the mounting structure portion between them. ing.
  • the emergency separable attachment structure portion has an emergency releasable fixing portion.
  • the emergency releasable fixing portion includes a load absorbing portion 371.
  • the details (configuration and operational effects) can be known by replacing the stay 344 with the post bracket 345.
  • the post bracket 345 described above is configured to be movable obliquely upward toward the rear of the vehicle with respect to the high-rigidity structural portion 381 and the column bracket 395. That is, the stay 344 is intentionally configured so that the moving direction does not completely coincide.
  • an air conditioning unit 397 is disposed at a position substantially below the vehicle body high-strength member main body 342 in the vehicle body high-strength member 341 and at a position substantially ahead of the vehicle in the stay 344.
  • the air conditioning unit 397 is mostly made of resin.
  • the high-strength member 341 for the vehicle body receives the occupant's knees in the emergency in the high-strength member main body 342 (high-rigidity structure portion 381) for the vehicle body, and the emergency input load 3F ( A knee protector 398 capable of absorbing a secondary load 3Fb) such as an occupant's knee input load is attached. Since this knee protector 398 is the same as that of FIG. 35, the details are omitted here. However, if necessary, the description of FIG. 35 and the description thereof can be used.
  • the vehicle body high-strength member main body 342 receives a force toward the rear of the vehicle via the post bracket 345, the side bracket 343, and the like.
  • the post bracket 345 is separated from the vehicle body high-strength member main body 342 (high-rigidity structure portion 381) and the column bracket 395, and obliquely upward toward the rear in the vehicle longitudinal direction 332.
  • the vehicle body high-strength member main body 342 functions to reduce the amount of rearward movement of the vehicle or to absorb the emergency input load 3F.
  • the passenger compartment front wall 335 moves rearward of the vehicle
  • the passenger compartment front wall 335 causes the air conditioning unit 397, which is mostly made of resin, to move rearward of the vehicle.
  • the stay 344 is separated from the vehicle body high-strength member main body 342 (high-rigidity structure portion 381) and moved rearward in the vehicle front-rear direction 332, so that It functions to reduce the amount of movement and to absorb the emergency input load 3F.
  • the knee protector 398 provided in the high-strength member main body 342 for the vehicle body functions to absorb an emergency input load 3F (secondary load 3Fb such as an occupant's knee input load) in an emergency. Thereby, for example, it is prevented that the occupant jumps out of the vehicle.
  • an emergency input load 3F secondary load 3Fb such as an occupant's knee input load
  • the high-strength member main body 342 (high-rigidity structure portion 381) configured as a separate member and the stay 344 are attached and integrated by the attachment structure portion 346.
  • the vehicle body high-strength member 341 is disposed in the passenger compartment front 334.
  • the vehicle body high-strength member main body 342 extends substantially in the vehicle width direction 331.
  • the vehicle body high-strength member main body 342 is supported on the vehicle compartment floor 336 by the stay 344. Further, the high-strength member main body 342 for the vehicle body is supported on the vehicle compartment front wall 335 by the post bracket 345.
  • the vehicle body high-strength member main body 342 (high-strength is provided by the emergency separable mounting structure portion 347 provided in the vehicle-body high-strength member main body 342 and the stay 344 mounting structure portion 346.
  • the rigid structural portion 381) and the stay 344 can be separated.
  • the stay 344 can continue to exhibit its functions even in an emergency.
  • the stay 344 has functions such as, for example, supporting an in-vehicle audio device or a control box, or attaching an instrument panel.
  • an emergency input load 3F (3Fa) directed toward the rear of the vehicle is applied to the stay 344, only the stay 344 is moved toward the rear of the vehicle without moving the high-strength member main body 342 for the vehicle body. it can.
  • an emergency input load 3F (3Fb) directed toward the vehicle front is applied to the stay 344, only the stay 344 is moved forward without moving the high-strength member main body 342 for the vehicle body. Can do. Therefore, it is possible to reduce the influence of the vehicle body high-strength member main body 342 due to the emergency input load 3F applied to the stay 344. Thereby, the high-strength member main body 342 for the vehicle body can continue to exhibit its functions even in an emergency.
  • the high-strength member main body 342 for the vehicle body has a function of supporting the steering column.
  • the emergency input load 3F (3Fa) toward the rear of the vehicle is transmitted via a post bracket 345, a side bracket 343, an air conditioner, or the like attached to the high-strength member main body 342 for the vehicle body by retreating the front wall 335 of the vehicle interior.
  • the high-strength member main body 342 for the vehicle body and the stay 344 are indirectly acted on.
  • the emergency input load 3F (3Fb) toward the front of the vehicle is indirectly applied to the high strength member main body 342 for the vehicle body or the stay by the knee input of the occupant to the knee protector 398 attached to the high strength member main body 342 for the vehicle body. 344 will be acted upon.
  • the vehicle body high-strength member main body 342 and the stay 344 are separated by the emergency separable mounting structure portion 347 provided in the mounting structure portion 346 between the vehicle-body high-strength member main body 342 and the stay 344.
  • the emergency separable mounting structure portion 347 provided in the mounting structure portion 346 between the vehicle-body high-strength member main body 342 and the stay 344.
  • the high-strength member main body 342 for the vehicle body and the stay 344 are separated from each other and can be moved by a necessary amount in an emergency, thereby deforming the high-strength member main body 342 for the vehicle body and the stay 344. It becomes possible to reduce. Further, it is possible to increase the strength of the high-strength member body 342 for the vehicle body and the stay 344 as necessary.
  • An attachment structure portion 346 (an emergency separable attachment structure portion 347) between a lower portion of the high strength member main body 342 (high rigidity structure portion 381) for the vehicle body and an upper end portion of the stay 344 is attached to the attachment surface portions 348, 349 ( The parts can be attached by fixing the parts 352, 353) that can be moved back and forth in an emergency together with a fixing part 351 (an emergency releaseable fixing part 354).
  • the emergency separable mounting structure portion 347 has the emergency releasable fixing portion 354 and the vehicle body high-strength member main body 342 (high-rigidity structure portion 381).
  • the fixed state with the stay 344 is released.
  • the emergency movable parts 352 and 353 guide the vehicle body high-strength member main body 342 and the stay 344 so as to slide relative to each other in the vehicle longitudinal direction 32.
  • either the vehicle body high-strength member main body 342 or the stay 344 or the vehicle front-rear direction 332 is provided by providing a stopper portion 350 on the mounting surface portion 348, 349 or the emergency back and forth movable portion 352, 353. Movement to one side can be restricted. In this embodiment, movement of the stay 344 relative to the high-strength member main body 342 for the vehicle body to the front of the vehicle is restricted.
  • the emergency releasable fixing portion 354 includes a movable fastening fixing portion 359 having a screw 355 and a long hole 358 extending in the vehicle front-rear direction 332, a caulking fixing portion such as a rivet (breakable caulking fixing portion), a hook A locking fixing portion 367 (deformable locking fixing portion 368) having a portion 365 and a hook locking hole portion can be used.
  • the movable fastening fixing portion 359 as the emergency releasable fixing portion 354 has the elongated hole 358 as a narrow groove portion 372 narrower than the diameter of the screw 355 so that the screw 355 pushes the narrow groove portion 372 in an emergency.
  • the load absorbing portion 371 can be obtained.
  • the breakable caulking fixing portion such as a rivet as the emergency releasable fixing portion 354 can be used as the load absorbing portion 371 by setting the breaking load optimally for load absorption.
  • the locking fixing portion 367 as the emergency releasable fixing portion 354 can be the load absorbing portion 371 by setting the deformation load of the hook portion 365 to be optimal for load absorption.

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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)
PCT/JP2009/069687 2008-11-21 2009-11-20 車体用高強度部材構造 WO2010058832A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09827613.2A EP2351683B1 (en) 2008-11-21 2009-11-20 High-strength member structure for auto bodies
CN200980146521.5A CN102224060B (zh) 2008-11-21 2009-11-20 车体用高强度部件结构
US13/130,373 US8764102B2 (en) 2008-11-21 2009-11-20 Structure of high-strength vehicle body member

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2008-297592 2008-11-21
JP2008297592A JP5049252B2 (ja) 2008-11-21 2008-11-21 車体強度部材構造
JP2008-311408 2008-12-05
JP2008311408A JP5236443B2 (ja) 2008-12-05 2008-12-05 車体強度部材部構造
JP2009-022080 2009-02-03
JP2009022080A JP5054712B2 (ja) 2009-02-03 2009-02-03 車体強度部材構造

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US (1) US8764102B2 (zh)
EP (1) EP2351683B1 (zh)
CN (1) CN102224060B (zh)
WO (1) WO2010058832A1 (zh)

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PT106689A (pt) * 2012-12-12 2014-06-12 Sodecia Ct Tecnológico S A Viga transversal de duplo tubo e respectivo suporte de fixação da coluna de direcção
WO2015033836A1 (ja) * 2013-09-04 2015-03-12 本田技研工業株式会社 自動車の車体構造

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CN102224060B (zh) 2014-07-16
EP2351683A1 (en) 2011-08-03
EP2351683B1 (en) 2013-09-11
US8764102B2 (en) 2014-07-01
US20110227369A1 (en) 2011-09-22
EP2351683A4 (en) 2012-05-02

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