CN107031735A - Body structure - Google Patents
Body structure Download PDFInfo
- Publication number
- CN107031735A CN107031735A CN201611207299.3A CN201611207299A CN107031735A CN 107031735 A CN107031735 A CN 107031735A CN 201611207299 A CN201611207299 A CN 201611207299A CN 107031735 A CN107031735 A CN 107031735A
- Authority
- CN
- China
- Prior art keywords
- subframe
- pedestal
- connection member
- wall
- vehicle frame
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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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
- B62D25/082—Engine compartments
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- 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
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- 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
- B62D21/152—Front or rear frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
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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)
Abstract
The present invention provides a kind of body structure with subframe, subframe is easily come off in vehicle collision.Body structure has：Pedestal (10), it is configured in the center of vehicle body fore-and-aft direction；Subframe (30), it is configured in a side side of pedestal (10) in the direction from front to rear of a vehicle body, and is configured in the lower section of the side vehicle frame (20) extended along vehicle body fore-and-aft direction；Connection member (50), its connection base frame (10) and side vehicle frame (20)；And fixed component (60), its fixed connecting part (50) and subframe (30).The contacting wall (15) for being connected to connection member (50) from below is formed with pedestal (10), the opening portion (15h) being open along the vertical direction is formed with contacting wall (15), the end of pedestal (10) side in subframe (30) is formed with opposing part (35a) opposite with contacting wall (15) from below.Fixed component (60) is incorporated into connection member (50) and opposing part (35a) through opening portion (15h).
Description
Technical field
The present invention relates to a kind of body structure.
Background technology
In the prior art, it is known that a kind of body structure, it has the front side extended in body forward structure along vehicle body fore-and-aft direction
Vehicle frame and subframe, the subframe are configured in the lower section of front side vehicle frame, and for supporting engine, speed changer and suspension etc..
In above-mentioned body structure, subframe is configured to fall when frontal collisions occur for vehicle.Accordingly, it is to avoid subframe and be configured
Power drive system in the front of subframe interferes and influences compartment space.
For example, patent document 1 has the bindiny mechanism for the attached portion that subframe is connected to front side vehicle frame, bindiny mechanism includes
There is the nut set in the way of the opening that encirclement is formed at attached portion and be open what is be connected with nut thread via described
Bolt, and the edge of the opening in attached portion is formed with otch.
In patent document 2, it is configured between the rearward end of front side vehicle frame and the leading section of passage rack for fastening subframe
Rear fastening part fastening base support, be formed with fastening base support cracking promote hole.
Prior art literature
Patent document
Patent document 1：Japanese invention license publication speciallys permit No. 5278105
Patent document 2：Japanese invention license publication speciallys permit No. 5460684
However, in patent document 1, in order to depart from subframe with defined load, it is thus necessary to determine that the configuration bit of otch
Put, the position relationship of the forming position at the fixed position of such as nut and the top of otch in the circumferential.
In patent document 2, it is thus necessary to determine that cracking promotes the allocation position in hole, the center of such as fastener hole and cracking promote between hole
Separation distance etc..
Therefore, in these patent documents 1 and patent document 2, the mounting structure of subframe becomes complicated, is occurring frontal collisions
When be difficult to make subframe easily come off.
The content of the invention
Therefore, it is an object of the present invention in the body structure with subframe, make secondary car when occurring vehicle collision
Frame easily comes off.
As the solution of above mentioned problem, the invention described in technical scheme 1 is characterised by, body structure (for example,
Body structure 1 in embodiment) have：Pedestal (base frame) (for example, pedestal 10 in embodiment), it is configured
In the center of vehicle body fore-and-aft direction；Subframe (for example, subframe 30 in embodiment), its in the direction from front to rear of a vehicle body by with
Put in a side side of the pedestal, and be configured in the side vehicle frame extended along vehicle body fore-and-aft direction (for example, in embodiment
Front side vehicle frame 20) lower section；Connection member (for example, connection member 50 in embodiment), it connects the pedestal and described
Side vehicle frame；And fixed component (for example, fixed component 60 in embodiment), it fixes the connection member and the secondary car
Frame.The contacting wall for being connected to the connection member from below is formed with the pedestal (for example, the contacting wall in embodiment
15) opening portion (for example, opening portion 15h in embodiment) being open along the vertical direction, is formed with the contacting wall,
The end of the pedestal side in the subframe is formed with opposing part opposite with the contacting wall from below (for example, implementing
Opposing part 35a in mode).The fixed component is incorporated into the connection member and the opposing part through the opening portion.
Invention described in technical scheme 2 is characterised by that the fixed component has：The axle sleeve of tubular is (for example, embodiment
In axle sleeve 61), it is incorporated into the subframe, and is connected on the inside of the opening portion connection member；And
Bolt (for example, bolt 62 in embodiment) and nut (for example, nut 63 in embodiment), it comes via the axle sleeve
The fixed connection member and the opposing part.
Invention described in technical scheme 3 is characterised by that the connection member has：Bottom wall is (for example, the bottom in embodiment
Wall 51), it is connected to the contacting wall from top；And perisporium (for example, perisporium 52 in embodiment), itself and the bottom wall
Split is formed.
Invention described in technical scheme 4 is characterised by that the pedestal has overlapping portion (for example, overlapping in embodiment
Portion 17), the overlapping portion is overlapping with the perisporium on the thickness direction of the perisporium.
Invention described in technical scheme 5 is characterised by also having：Passage crossbeam is (for example, the passage crossbeam in embodiment
6), the channel part in the overall width direction center of its bearing plate (for example, bottom plate 4 in embodiment) is (for example, in embodiment
Channel part 4a), and in inverted U-shaped from vehicle body fore-and-aft direction.The perisporium has coupling recess portion (for example, embodiment
In coupling recess portion 55a), the coupling recess portion is with the outside of recessed on the inside of overall width direction and overall width direction along the passage crossbeam
The mode in portion extends, and is connected to the passage crossbeam.
Invention described in technical scheme 6 is characterised by that the perisporium has ridge line section (for example, 53a in embodiment),
The crest line (for example, crest line 20a in embodiment) of the ridge line section and the side vehicle frame continuously, and to the inner side of the perisporium
It is recessed.
Invention described in technical scheme 7 is characterised by that the pedestal has inclined plane (for example, leaning forward in embodiment
Inclined-plane 12a), the inclined plane is with the outer peripheral edge (for example, rear end 15e of the contacting wall 15 in embodiment) of the contacting wall
Point, is tilted in the way of being more located lower section towards center in the direction from front to rear of a vehicle body.
Invention described in technical scheme 8 is characterised by, longitudinal wall is provided with the pedestal (for example, in embodiment
Longitudinal wall 19), the longitudinal wall is protruded upward from the part of the side opposite with the contacting wall of the inclined plane.
Invention described in technical scheme 9 is characterised by, in the direction from front to rear of a vehicle body, in the connection member and the base
Between the subframe of the opposite side of frame and the side vehicle frame, the underarm of supporting suspension is provided with (for example, under in embodiment
Arm 70) underarm support (for example, underarm support 71 in embodiment).
Invention described in technical scheme 10 is characterised by that the subframe has：First connecting portion is (for example, embodiment
In first connecting portion 41), it is connected to the end of the side opposite with the pedestal of the side vehicle frame in the direction from front to rear of a vehicle body；
Second connecting portion (for example, second connecting portion 42 in embodiment), it is between the first connecting portion and the opposing part
It is connected to the side vehicle frame；And bending section (for example, bending section 43 in embodiment), it is in the first connecting portion and institute
State and bend downwards between second connecting portion.
Invention according to described in technical scheme 1, is formed with the contacting wall for being connected to connection member from below on pedestal,
The opening portion being open along the vertical direction is formed with contacting wall, the end of the pedestal side in subframe be formed with from below with
The opposite opposing part of contacting wall, fixed component is incorporated into connection member and opposing part through opening portion.Hereby it is possible to play following
Effect.Hereinafter, it is referred to as when vehicle is collided in the direction from front to rear of a vehicle body " during vehicle collision ".When generation vehicle collision
When, if applying load downward to opposing part, connection member is squeezed by contacting wall (specifically, the peripheral part of opening portion)
Pressure.Now, reaction force acts upward are in connection member.Therefore, stress concentrates on connecting portion along the periphery of opening portion
Part.Accordingly, connection member occurs cracking in the inner side of opening portion and is broken.Then, the fracture and fixed component of connection member
Fallen together through opening portion.Therefore, subframe can be made easily to come off when a vehicle is in a collision.
Invention according to described in technical scheme 2, fixed component has：The axle sleeve of tubular, it is incorporated into subframe, and is opening
Connection member is connected on the inside of oral area；And screw bolt and nut, it comes fixed connecting part and opposing part via axle sleeve.According to
This, can play following effect.Due to axle sleeve can be clamped between connection member and opposing part, make opposing part away from opening
Portion, therefore, stress are easy to concentrate on connection member along the periphery of opening portion.Therefore, it is possible to be easily broken off connection member.Separately
Outside, fixed component can be employed as the axle sleeve of spare part in common use, screw bolt and nut, therefore, it is possible to simplify the fixed knot of subframe
Structure.
Invention according to described in technical scheme 3, connection member has：Bottom wall, it is connected to contacting wall from top；And week
Wall, it is formed with bottom wall split.Hereby it is possible to play following effect.Due to can be by material different from each other and thickness shape
Into bottom wall and perisporium, therefore, it is possible to improve the free degree of design corresponding with requiring specification.For example, from making connection member easy
From the viewpoint of fracture, bottom wall can be formed by the material of low intensity.On the other hand, from the sight for the supporting rigidity for improving subframe
Point sets out, and can increase the thickness of slab of bottom wall.
Invention according to described in technical scheme 4, pedestal has overlapping portion overlapping with perisporium on the thickness direction of perisporium.According to
This, can ensure rigidity by overlapping portion, therefore, it is possible to reduce the thickness of slab of perisporium, realize lightweight.
Invention according to described in technical scheme 5, perisporium has coupling recess portion, and the coupling recess portion is with recessed to overall width direction inner side
And the mode along the overall width direction outside portion of passage crossbeam extends, and it is connected with passage crossbeam.Hereby it is possible to play following
Effect.Due to the load that can be born to apply from subframe by passage crossbeam via coupling recess portion, therefore, it is possible to improve secondary car
Rigidity around frame installation portion (for example, opposing part and connection member etc.).
Invention according to described in technical scheme 6, perisporium has ridge line section, and the ridge line section and the crest line of side vehicle frame are continuous, and
It is recessed to the inner side of perisporium.Hereby it is possible to play following effect.(offset collision is included when occurring vehicle collision), can
Make from the crest line of side vehicle frame to be transferred to pedestal via the ridge line section of perisporium from the load that side vehicle frame applies.
Invention according to described in technical scheme 7, pedestal has inclined plane, the inclined plane using the outer peripheral edge of contacting wall as starting point,
Tilted in the direction from front to rear of a vehicle body in the way of being more located lower section towards center.Hereby it is possible to play following effect.Work as hair
During raw vehicle collision, due to that opposing part can be made to be contacted with inclined plane, and it is set to be slided downwards along inclination, therefore, easily
In the load to opposing part application downward.Therefore, it is possible to be easily broken off connection member.
Invention according to described in technical scheme 8, is provided with longitudinal wall on pedestal, and the longitudinal wall is opposite with contacting wall from inclined plane
The part of side is protruded upward.Hereby it is possible to play following effect.When occurring vehicle collision, opposing part edge can be made to incline
After inclined-plane is slided downwards, according to " lever principle ", using the lower end of longitudinal wall as fulcrum, subframe is set to rotate downwards.Therefore,
Load downward can be made effectively to betide fixed component.Therefore, it is possible to be easier the fracture of connection member.
Invention according to described in technical scheme 9, in the direction from front to rear of a vehicle body, the secondary car in the side opposite with pedestal of connection member
Between frame and side vehicle frame, the underarm support of the underarm of supporting suspension is provided with.Hereby it is possible to play following effect.Can
The design freedom of underarm is improved, and configures connection member in the end of a side side of pedestal in the direction from front to rear of a vehicle body.
Invention according to described in technical scheme 10, subframe has：First connecting portion, it is connected in the direction from front to rear of a vehicle body
The end of the side opposite with pedestal of side vehicle frame；Second connecting portion, it is connected to side vehicle frame between first connecting portion and opposing part；
And bending section, it bends downwards between first connecting portion and second connecting portion.Hereby it is possible to play following effect.
When occurring vehicle collision, subframe is bent downwards by starting point of bending section, therefore, according to " lever principle ", can be with
Bending section is fulcrum, subframe is rotated downwards.Therefore, it is possible to make load downward effectively betide fixed part
Part.Therefore, it is possible to which connection member is more easily broken off.
Brief description of the drawings
Fig. 1 is the stereogram of the body structure involved by embodiments of the present invention from coming from obliquely downward.
Fig. 2 is represented in the state of subframe is pulled down, the stereogram of the surrounding structure of passage crossbeam from coming from obliquely downward.
Fig. 3 is the sectional block diagram of the attachment structure of subframe and connection member from coming from obliquely downward.
Fig. 4 is the upward view for the attachment structure for representing pedestal and connection member.
Fig. 5 is the side view for the attachment structure for representing subframe and front side vehicle frame.
Fig. 6 is the upward view for representing underarm support.
Fig. 7 is the figure for illustrating effect of the subframe based on the opening portion in pedestal and falling.
Fig. 8 be then Fig. 7, for illustrating the figure that subframe is fallen.
Fig. 9 is the figure being broken for illustrating effect of the connection member based on lean forward inclined-plane and longitudinal wall in pedestal.
Description of reference numerals
1：Body structure；4：Bottom plate；4a：Channel part；6：Passage crossbeam；6a：The overall width direction outside portion of passage crossbeam；10：Base
Frame；12a：Lean forward inclined-plane (inclined plane)；15：Contacting wall；15e：The rear end (outer peripheral edge of contacting wall) of contacting wall；15h：Opening
Portion；17：Overlapping portion；19：Longitudinal wall；20：Front side vehicle frame (side vehicle frame)；20a：Crest line；30：Subframe；35a：Opposing part；41：The
One connecting portion；42：Second connecting portion；43：Bending section；50：Connection member；51：Bottom wall；52：Perisporium；53a：Ridge line section；55a：
Coupling recess portion；60：Fixed component；61：Axle sleeve；62：Bolt；63：Nut；70：Underarm；71：Underarm support.
Embodiment
Below, referring to the drawings, embodiments of the present invention are illustrated.In embodiments of the present invention, enumerate pair
The example that the toe lateral of vehicle is applicable body structure is illustrated.Recorded as long as no special, it is front and rear in the following description
The direction such as left and right is identical with the direction of be applicable vehicle.In addition, appropriate location in the figure used in the following description, shows
The arrow FR of vehicle front is represented, the arrow LH of vehicle left is represented, the arrow UP of vehicle up direction is represented.
＜ body structures ＞
Fig. 1 is the stereogram of body structure 1 from coming from obliquely downward.In Fig. 1, before the main vehicle represented in body structure 1
The skeleton in portion.
As shown in figure 1, body structure 1 has：Pedestal 10, it is configured in the center of vehicle body fore-and-aft direction；Left-right pair of front side
Vehicle frame 20 (side vehicle frame), it is located at the front of vehicle and is configured in overall width direction both sides, and prolongs along vehicle body fore-and-aft direction
Stretch；Subframe 30, it is configured in the front side of pedestal 10, and is configured in the lower section of front side vehicle frame 20；Connection member 50, its
Connection base frame 10 and front side vehicle frame 20；And fixed component 60, its fixed connecting part 50 and subframe 30.
Referring concurrently to Fig. 1 and Fig. 2, body structure 1 also has：Instrument board lower member 5, its divide compartment 2 and its in front of
Engine room 3；And passage crossbeam 6, it supports the channel part 4a towards the overall width direction center of the bottom plate 4 in compartment 2, and
From vehicle body front and back always from inverted U-shaped.
In addition, reference 7 represents stiffener 7 in figure, the stiffener 7 extends along overall width direction, and with being incorporated into
The flange part of the front lower portion of instrument board lower member 5.
＜ pedestals ＞
As shown in figure 1, pedestal 10 has：Pair of right and left bottom plate vehicle frame 11, its be configured in front side vehicle frame 20 rear side and by with
Put in overall width direction both sides, and extend along vehicle body fore-and-aft direction；Pair of right and left center frame 12, it is configured in left and right bottom plate
Between the overall width direction of vehicle frame 11, and extend along vehicle body fore-and-aft direction；Pair of right and left curb girder 13, itself and left and right bottom plate vehicle frame 11
Compared to the position being configured as more by (specifically, the overall width direction outboard end of pedestal 10) on the outside of overall width direction, and along car
Body fore-and-aft direction extends.
Bottom plate vehicle frame 11 and center frame 12 are in U-shaped section unlimited upward.Curb girder 13 is in on the inside of overall width direction
Unlimited U-shaped section.Top in bottom plate vehicle frame 11 and the unlimited section of center frame 12, is respectively formed with and is engaged in bottom plate
4 and instrument board lower member 5 lower surface flange part 11f, 12f.Accordingly, bottom plate vehicle frame 11 and center frame 12 are constituted along vehicle body
The continuous closed section of fore-and-aft direction extension.
Referring concurrently to Fig. 3 and Fig. 4, it is formed with the leading section of center frame 12：Contacting wall 15, its company of being connected to from below
Relay part 50；Side wall 16, it is connected with contacting wall 15, and is connected to connection member 50 on the inside of front and overall width direction.Support
Connect wall 15 has thickness in the vertical direction, and with substantially horizontally extending shape.
In contacting wall 15, the opening portion 15h being open along the vertical direction is formed.In Fig. 4 top view, opening portion 15h
Positioned at the fore-and-aft direction center and overall width direction center of contacting wall 15.In Fig. 4 top view, opening portion 15h is in than fixed part
The big circle of the portions 63b of nut 63 external diameter in part 60.
As shown in figure 3, center frame 12 has：Lean forward inclined-plane 12a, and it is with the outer peripheral edge (i.e. rear end 15e) of contacting wall 15
For starting point, tilted in the direction from front to rear of a vehicle body in the way of being more located lower section towards center (i.e. more towards rear side)；Horizontal plane
12b, it is connected with the inclined-plane 12a that leans forward, and substantially extends in level along vehicle body fore-and-aft direction；And hypsokinesis inclined-plane 12c,
It is connected with horizontal plane 12b, and tilts extension rearwardly and upwardly.Here, the inclined-plane 12a that leans forward is equivalent to described in claim
" inclined plane ".The inclined-plane 12a that leans forward is connected with the rear end 15e of contacting wall 15, and from the rear end 15e of contacting wall 15 to horizontal plane
12b front end, extension is gently tilted in the way of side more rearward is located lower section.
As shown in figure 4, center frame 12 has overlapping portion 17, thickness of the overlapping portion 17 in the perisporium 52 of connection member 50
It is overlapping with perisporium 52 on direction.Overlapping portion 17 has：Interior overlapping portion 17a, it is convex on the inside of overall width direction with center frame 12
Edge 12f front end is connected, and extends in the way of along the outer surface of the inner side wall portion 55 in perisporium 52；And outer overlapping portion
17b, its flange part 12f with center frame 12 on the outside of overall width direction front end is connected, and with along the rear wall on perisporium 52
The mode of the outer surface in portion 54 extends.
As shown in figure 3, be connected with reinforcing plate 18 on center frame 12, the reinforcing plate 18 is with along lean forward inclined-plane 12a, level
Face 12b and hypsokinesis inclined-plane 12c mode extend, and in the tabular of the inner circumferential wall along center frame 12.Before reinforcing plate 18
Hold to rear end 15e of the back lower place away from contacting wall 15.Specifically, before the front end of reinforcing plate 18 is located at than the inclined-plane 12a that leans forward
Afterwards pars intermedia slightly by front and than lean forward inclined-plane 12a pars intermedia up and down slightly by top position.
Longitudinal wall 19 is provided with center frame 12, the longitudinal wall 19 is from preceding inclined plane 12a and contacting wall 15 opposite side
Partly (part of the rear side for the inclined-plane 12a that leans forward) is protruded upward.Longitudinal wall 19 is configured in the horizontal plane on center frame 12
The top of 12b front and rear pars intermedia.In cross section in fig .3, longitudinal wall 19 is in L-shaped.Longitudinal wall 19 has：Lower wall portion 19a, its from
Top is connected to the lower wall of reinforcing plate 18 (that is, the part for being overlapped in horizontal plane 12b in reinforcing plate 18 in the vertical direction) and tied
Together in reinforcing plate 18；And wall portion 19b is erected, it is connected with lower wall portion 19a, and is stood upward from lower wall portion 19a front end
Rise.
Vehicle frame ＞ on front side of ＜
In Fig. 5 side view, front side vehicle frame 20 has：Front side main body of vehicle frame 21, it is substantially in rearward from vehicle front
It is horizontal-extending；And front side vehicle frame rearward end 22, it is connected with front side main body of vehicle frame 21, and with from front side main body of vehicle frame 21
Rear end towards the leading section of pedestal 10 more rearward side be located lower section mode tilt extension.
Referring concurrently to Fig. 1 and Fig. 2, the leading section of main body of vehicle frame 21 on front side of left and right, be provided with before dividing plate in overall width side
Upward both sides, the preceding dividing plate is used to support radiator (not shown).Front side main body of vehicle frame 21 has closing for rectangular section
Close cross section structure.Front side vehicle frame rearward end 22 is in U-shaped section unlimited upward.In front side, opening wide for vehicle frame rearward end 22 is cut
The top in face, is formed with the flange part 22f for the lower surface for being engaged in bottom plate 4 and instrument board lower member 5.Accordingly, after the vehicle frame of front side
End 22 is constituted along the continuous closed section of vehicle body fore-and-aft direction.
The rearward end of front side vehicle frame rearward end 22 rearward extends and is incorporated into the leading section of bottom plate vehicle frame 11.In addition, preceding
The overall width direction outside portion of side vehicle frame rearward end 22 is outrigger via the frame parts in U-shaped section unlimited upward
23, it is connected to the leading section of curb girder 13.The bottom of pars intermedia before and after front side vehicle frame rearward end 22, is formed with vertically side
To opening, rounded through hole 22h in a top view.
＜ subframes ＞
As shown in figure 1, subframe 30 is in trave shape.Subframe 30 has：Subframe main body 31, it is in extend along overall width direction
Flat pattern；Pair of right and left longeron 32, it is configured in overall width direction both sides, and from the front end of subframe main body 31 and overall width
Direction both sides extend in extension shape to front side；Front beam 33, it is in the way of between the front portion across left-right longeron 32 along car
Cross direction extends；And pair of right and left connection supporting member 34, it is configured in overall width direction both sides, and from subframe main body 31
Overall width direction both sides backward side protrude.
For example, subframe main body 31 is cast by aluminium alloy etc..In the rear portion of subframe main body 31 and overall width direction center,
It is formed with opening in the vertical direction and the elongated hole 31h extended along overall width direction.As shown in fig. 6, in subframe main body 31 shape
Into there is multiple reinforcement 31a.Hereby it is possible to improve lightweight and the rigidity of subframe main body 31.
As shown in figure 1, left-right longeron 32 is stamping by light-alloy or steel etc..Left-right longeron 32 is with vehicle body fore-and-aft direction
Upper side more rearward is located the mode on the inside of overall width direction, and extension is gently tilted along vehicle body fore-and-aft direction.
Front beam 33 extends in the gentle U-shaped for rearward opening wide (forming convex forwards) and along overall width direction.
The overall width direction both ends of front beam 33 are incorporated into the front lower surface of left-right longeron 32.
Left and right connection supporting member 34 is located at the end (that is, rearward end) of the side of pedestal 10 in subframe 30.As shown in figure 3,
On left and right connection supporting member 34, opposing part 35a opposite with the contacting wall 15 of center frame 12 from below is formed with.
Referring concurrently to Fig. 1 and Fig. 3, connection supporting member 34 has the hollow structure extended along vehicle body fore-and-aft direction.Connection branch
Bearing member 34 has：Top plate portion 35, it is connected with the upper end of the overall width direction both sides of subframe main body 31, and along before and after vehicle body
Direction extends；Base plate 36, it is connected with the lower end of the overall width direction both sides of subframe main body 31, and downwards away from top
Plate portion 35, and extend along vehicle body fore-and-aft direction；And side plate 37, it is connected with the outer peripheral edge with top plate portion 35 and base plate 36
Mode extend along vehicle body fore-and-aft direction and above-below direction.
Lower surface of the top plate portion 35 downwards away from center frame 12.Top plate portion 35 is with along the contacting wall of center frame 12
15th, the mode that the inclined-plane 12a and horizontal plane 12b that leans forward extends, gently tilts extension in the direction from front to rear of a vehicle body.In top plate portion 35
Rearward end be formed with curved wall portion 35b, curved wall portion 35b along the vertical direction with horizontal plane 12b before and after pars intermedia weight
After folded position extends to back lower place bending, bend downwards.
Inserting hole 35h is formed with top plate portion 35, inserting hole 35h is being overlapped in contacting wall in the vertical direction on this
15 opening portion 15h position is open along the vertical direction.In a top view, upper inserting hole 35h is in the opening portion than contacting wall 15
Small and bigger than the inserting hole 51h of connection member 50 circle of 15h internal diameter.
Base plate 36 extends in the lower section of top plate portion 35 along vehicle body fore-and-aft direction.Top plate portion 35 and base plate 36 up and down point
Sow discord and more tapered into every side more rearward.Prominent wall portion 36a is formed with the rearward end of base plate 36, protrusion wall portion 36a exists
On above-below direction the position overlapping with the curved wall portion 35b of top plate portion 35 and the position more closer to the front than curved wall portion 35b to
Top is protruded.
Lower inserting hole 36h is formed with base plate 36, the lower inserting hole 36h is being overlapped in top plate portion in the vertical direction
35 upper inserting hole 35h position is open along the vertical direction.In a top view, lower inserting hole 36h is in than in upper inserting hole 35h
Small and bigger than the inserting hole 51h of connection member 50 circle in footpath.In base plate 36, in lower inserting hole 36h front, it is formed with
Be open along the vertical direction, rounded through hole 36j in a top view.
Pars intermedia is connected with the connection boss 38 of cylindrical shape before and after connection supporting member 34, and the connection boss 38 is with connection
Extend above and below the mode in-between of top plate portion 35 and base plate 36.Connect boss 38 with across through hole 36j in tandem
Mode is provided with multiple (for example, being 2 in the present embodiment) at spaced intervals in the direction from front to rear of a vehicle body.
Strengthening part 39 is connected with the rearward end of connection supporting member 34, the strengthening part 39 is with along top plate portion 35, bottom plate
Portion 36 and prominent wall portion 36a mode extend, and in the tabular of the inner circumferential wall along connection supporting member 34.In Fig. 3 section view
In figure, strengthening part 39 is in U-shaped section unlimited forwards.Hereby it is possible to improve the rigidity of connection supporting member 34.
Referring concurrently to Fig. 3 and Fig. 6, the overall width direction outside portion of connection supporting member 34 is provided with connecting plate 40, the connection
Plate 40 is extended along the longitudinal direction in the way of the overall width direction lateral surface along connection supporting member 34, and in upward and overall width side
To the L-shaped section of interior open.Upper flange part 40f is formed with the top in the unlimited section of connecting plate 40, the upper flange part
40f is engaged in the leading section of center frame 12 and the lower surface of connection member 50.Overall width side in the unlimited section of connecting plate 40
Lower flange portion 40g is formed with to medial end, lower flange portion 40g is engaged in the overall width direction outside portion of connection supporting member 34
Bottom.
As shown in figure 5, subframe 30 also has：First connecting portion 41, it is connected to front side car in the direction from front to rear of a vehicle body
The end (that is, leading section) with the opposite side of pedestal 10 of frame 20；Second connecting portion 42, it is in first connecting portion 41 and opposing part
Front side vehicle frame 20 is connected between 35a；And bending section 43, its between first connecting portion 41 and second connecting portion 42 downwards
Bending.
First connecting portion 41 protrudes and is installed in the front end of front side main body of vehicle frame 21 upward from the leading section of longeron 32
The bottom in portion.First connecting portion 41 in the way of between the leading section of longitudinal beam connected 32 and the leading section of front side main body of vehicle frame 21 on
Lower extension, and be formed as the tubular in rectangular section.
Second connecting portion 42 is from the front portion of subframe main body 31 and overall width direction sidepiece pleurapophysis upward and outside overall width direction
Go out and be installed in front side main body of vehicle frame 21 rearward end (rearward end specifically, from front side main body of vehicle frame 21 is swollen downwards
The bulge 21a gone out bottom).Second connecting portion 42 is configured to：When occur vehicle collision when, its earlier than first connecting portion 41 from
Vehicle frame 20 is separated on front side of left and right.
Second connecting portion 42 has：Arm 42a, its from subframe main body 31 upward and overall width direction is protruding outside and prolong
Stretch；And connecting bracket 42b, its arm portions 42a upper end and the bulge 21a of front side main body of vehicle frame 21.Arm 42a's
Upper end is fixed on connection by multiple (for example, being 2 in the present embodiment) the bolt 42c arranged in the longitudinal direction
On support 42b.
Bolt 42c inserting hole (not shown) is formed with connecting bracket 42b, and is formed with and makes one of inserting hole
Divide the notch 42h being open downwards.Therefore, when occurring vehicle collision, if arm 42a bears the load stretched downwards,
Then in the state of connecting bracket 42b is retained in the front side side of vehicle frame 20, arm 42a and bolt 42c are broken notch 42h.
Also, arm 42a is separated downwards from connecting bracket 42b, it is allowed to the lower section displacement of subframe 30.
In Fig. 5 side view, bending section 43 with before and after longeron 32 pars intermedia convex mode is bent downwards.
The upper surface of longeron 32 is gently tilted in the way of lower section is more located by the side of bending section 43, in the direction from front to rear of a vehicle body prolongs
Stretch.Any bending will not generally occur for bending section 43, but when the impact load for the fore-and-aft direction for applying more than setting to vehicle
When, longeron 32 turns into the starting point in the bending downwards of front and rear pars intermedia.
In addition, reference 25 represents that reference 26 represents the table of reference 27 in front wheel housing, figure in wheel cover component, figure in figure
Lower supporting rod in before showing.
＜ connection members ＞
As shown in Figure 3 and Figure 4, connection member 50 has：Bottom wall 51, it is connected to the contacting wall 15 of center frame 12 from top；
And perisporium 52, it is formed with the split of bottom wall 51.
Bottom wall 51 has thickness in the vertical direction, and with the shape extended along overall width direction.Before bottom wall 51
End is formed with lordosis edge 51f, and the lordosis edge 51f is erected upward from the front end of bottom wall 51, and is engaged in perisporium 52
Front wall portion 53 bottom.Rear flange 51g is formed with the rearward end of bottom wall 51, rear flange 51g is from the rear end of bottom wall 51
Extension, and the bottom for the rear wall parts 54 being engaged in perisporium 52 are tilted rearwardly and upwardly.
Inserting hole 51h is formed with bottom wall 51, inserting hole 51h is open along the vertical direction, and supplies fixed component 60
Bolt 62 intert.In Fig. 4 upward view, inserting hole 51h is located at the fore-and-aft direction center and overall width direction center of bottom wall 51.
In Fig. 4 upward view, the external diameter that inserting hole 51h is in the axle portion 62a (reference picture 3) than bolt 62 is slightly larger and than opening portion 15h
The small circle of internal diameter.
Perisporium 52 has to be erected upward from the outer peripheral edge of bottom wall 51, and shape unlimited with overall width direction outside upward
Shape.Perisporium 52 has：Front wall portion 53, it extends in the way of along the vertical direction；Rear wall parts 54, it is with rearward away from antetheca
The position in portion 53 more rearward side be located top mode tilt extension in the direction from front to rear of a vehicle body；And inner side wall portion 55, its
Above and below in the way of between connecting before and after the overall width direction medial extremity of front wall portion 53 and the overall width direction medial extremity of rear wall parts 54
Extension.
Referring concurrently to Fig. 2 and Fig. 4, lordosis edge 53f, the front flange are formed with the outer peripheral edge of the front wall portion 53 of perisporium 52
Portion 53f extends to the outer lateral bend of perisporium 52, and is engaged in the lower surface and front side vehicle frame of bottom plate 4 and instrument board lower member 5
The overall width direction medial surface of rearward end 22.Rear flange portion 54f, the rear flange are formed with the outer peripheral edge of the rear wall parts 54 of perisporium 52
Portion 54f extends to the outer lateral bend of perisporium 52, and is engaged in the lower surface and front side car of bottom plate 4 and instrument board lower member 5
The overall width direction medial surface of frame rearward end 22.
Perisporium 52 also has：Coupling recess portion 55a, it is with to recessed on the inside of overall width direction and along the overall width side of passage crossbeam 6
The mode of outside sidepiece extension is connected to passage crossbeam 6；And ridge line section 53a, its crest line 20a with front side vehicle frame 20 are continuous,
And the inner side to perisporium 52 is recessed.
Coupling recess portion 55a is formed at the front and rear pars intermedia of the inner side wall portion 55 on perisporium 52.Coupling recess portion 55a is horizontal along passage
The overall width direction outside portion 6a of beam 6 is recessed to overall width direction inner side, also, with the more upper side being located on the inside of overall width direction
Formula tilts extension along the vertical direction.
Ridge line section 53a is formed at the bottom of the front wall portion 53 on perisporium 52 and overall width direction outside portion.Ridge line section 53a with every
Lordosis edge 53f overall width direction outside portion, from the crest line 20a of front side vehicle frame 20 towards the side of the front end of center frame 12
Formula, gently tilts extension on overall width direction.
＜ fixed components ＞
As shown in figure 3, fixed component 60 passes through the opening portion 15h of the contacting wall 15 in center frame 12, connection member is incorporated into
50 and opposing part 35a.Fixed component 60 has：Cylindric axle sleeve 61, it is incorporated into subframe 30, and in opening portion 15h
Inner side be connected to connection member 50；And bolt 62 and nut 63, it carrys out fixed connecting part 50 and opposite via axle sleeve 61
Portion 35a.In addition, in figure 3, for convenience of description, show to remove bolt 62 from nut 63, and away from lower inserting hole 36h
The state of lower section.
Axle sleeve 61 has：Cylindric cylinder portion 61a, it is lower thereon to extend；And wide diameter portion 61b, it is from cylinder portion 61a upper end
Portion is to expanding on the outside of the direction of footpath.Cylinder portion 61a lower end is incorporated into the periphery of the lower inserting hole 36h in the base plate 36 of subframe 30
Portion.Wide diameter portion 61b outer peripheral face is incorporated into the inner peripheral of the upper inserting hole 35h in the top plate portion 35 of subframe 30.Wide diameter portion 61b
Upper end pass through the opening portion 15h of the contacting wall 15 in center frame 12, with reference to or the bottom wall 51 that is connected in connection member 50
Lower surface.
Bolt 62 has：Axle portion 62a, it has the external thread part 62c being threadedly coupled with the internal thread part 63c of nut 63 simultaneously
Extend up and down；And head 62b, it is incorporated into axle portion 62a lower end.
From coming from the direction of the axis C1 extensions along axle sleeve 61 (i.e., in a top view), axle portion 62a has than connecting portion
The slightly smaller external diameter of the internal diameter of inserting hole 51h in the bottom wall 51 of part 50.(that is, Fig. 6's looks up from coming from the direction along axis C1
In figure), head 62b has the external diameter bigger than the internal diameter of the lower inserting hole 36h in the base plate 36 of subframe 30.
Nut 63 has：Cylindrical portion 63a, its cylindrical shape that there is internal thread part 63c and lower extension is presented；And portions
63b, its from cylindrical portion 63a bottom to footpath direction on the outside of it is expanding.For example, nut 63 is welded nut.
From coming from the direction along axis C1, cylindrical portion 63a has than the inserting hole 51h on the bottom wall 51 of connection member 50
The slightly smaller internal diameter of internal diameter.From coming from the direction along axis C1 (that is, in Fig. 4 upward view), portions 63b formation external diameters are than connecting
The internal diameter of inserting hole 51h in the bottom wall 51 of relay part 50 is big and opening portion 15h than the contacting wall 15 in center frame 12
The small circle of internal diameter.The inserting hole 51h of portions 63b in the vertical direction in the bottom wall 51 of connection member 50 is overlapped in periphery
The position in portion, is incorporated into the upper surface of bottom wall 51.
＜ underarm supports ＞
As shown in fig. 6, in the direction from front to rear of a vehicle body, in connection member 50 with the opposite side of pedestal 10 (that is, before connection member 50
Side), between subframe 30 and front side vehicle frame 20, it is provided with the underarm support 71 of the underarm 70 of supporting suspension.In facing upward for Fig. 6
In view, underarm 70 has：Underarm main body 70a, it extends along overall width direction, and in the Y words to overall width direction interior open
Shape；And it is cylindric be supported by boss portion 70b, it rearward dashes forward from the rearward end on the inside of underarm main body 70a overall width direction
Go out.In addition, in figure 6, reference 75 represents the front-wheel of vehicle left side.
Underarm support 71 has：Underarm support main body 71a, it is configured in subframe in the front of connection member 50
Between 30 connection supporting member 34 and the overall width direction of front side vehicle frame rearward end 22；Inner support 71b, it is from underarm support main body
71a is protruded inwardly to overall width side and is connected to connection supporting member 34；And support arm 71c, it is from underarm support main body 71a
It is protruding outside and be connected to the bottom of the front and rear pars intermedia of front side vehicle frame rearward end 22 to overall width direction.
Referring concurrently to Fig. 3 and Fig. 6, inner support 71b is incorporated into what is protruded upward from the top plate portion 35 of connection supporting member 34
Connect the upper end of boss 38, and through connection supporting member 34 base plate 36 through hole 36j and by bolt 72 and not shown
Nut be fastened on connection supporting member 34 base plate 36 on.Referring concurrently to Fig. 2 and Fig. 6, support arm 71c is passed through after the vehicle frame of front side
The through hole 22h of the bottom of the front and rear pars intermedia of end 22 and front side vehicle frame rear end is fastened on by bolt 73 and nut (not shown)
The bottom of the front and rear pars intermedia in portion 22.
The effect ＞ of opening portion in ＜ pedestals
Below, the example that subframe 30 is fallen due to the effect of the opening portion 15h in pedestal 10 is illustrated.
As shown in fig. 7, when occurring vehicle collision, if applying (arrow V1 downward to the opposing part 35a of subframe 30
Direction) load, then (specifically, opening portion 15h's is outer by the contacting wall 15 of center frame 12 for the bottom wall 51 of connection member 50
All portions) extruding.Now, upward the reaction force acts of (arrow V2) in the bottom wall 51 of connection member 50.Therefore, stress edge
Opening portion 15h periphery and the bottom wall 51 for concentrating on connection member 50.
Accordingly, the bottom wall 51 of connection member 50 occurs cracking in opening portion 15h inner side and is broken.So, such as Fig. 8 institutes
Show, the fracture of the bottom wall 51 of connection member 50 is fallen together with fixed component 60 through opening portion 15h.In addition, in Fig. 7 and
In Fig. 8, the part overlapping with opening portion 15h periphery in the vertical direction in bottom wall 51 is illustrated by the broken lines.
The effect ＞ of inclined plane and longitudinal wall in ＜ pedestals
Below, an example being broken to connection member 50 due to the effect of lean forward inclined-plane 12a and longitudinal wall 19 in pedestal 10
Illustrate.
As shown in figure 3, when occurring vehicle collision, if applying the load towards rear, subframe 30 to subframe 30
Opposing part 35a contacted with the inclined-plane 12a that leans forward of pedestal 10.So, subframe 30 opposing part 35a along lean forward inclined-plane 12a to
Slide lower section.If also, opposing part 35a is slided downwards along the inclined-plane 12a that leans forward, and is connected to the lower end of longitudinal wall 19.
So, as shown in figure 9, using the lower end of longitudinal wall 19 as fulcrum P1, according to " lever principle ", subframe 30 revolves downwards
Turn, specifically, rotated to the rotate counterclockwise direction (arrow V3 directions) centered on fulcrum P1.Therefore, effectively to solid
Determine part 60 and apply load downward, the bottom wall 51 of connection member 50 occurs cracking in opening portion 15h inner side and is broken.
So, the fracture of the bottom wall 51 of connection member 50 is fallen together with fixed component 60 through opening portion 15h.In addition, in Fig. 9
In, for convenience of description, the position of the nut 63 of (i.e. usual state) before bottom wall 51 indicated by a dashed line is broken.
As described above, the body structure 1 involved by above-mentioned embodiment has：Pedestal 10, it is configured in before and after vehicle body
The center in direction；Subframe 30, it is configured in a side side of pedestal 10 in the direction from front to rear of a vehicle body, and is configured in along car
The lower section of the front side vehicle frame 20 of body fore-and-aft direction extension；Connection member 50, its connection base frame 10 and front side vehicle frame 20；And it is fixed
Part 60, its fixed connecting part 50 and subframe 30.It is formed with pedestal 10 and is connected to supporting for connection member 50 from below
Wall 15 is connect, the opening portion 15h being open along the vertical direction is formed with contacting wall 15, the end of the side of pedestal 10 in subframe 30
Portion is formed with opposing part 35a opposite with contacting wall 15 from below.Fixed component 60 is incorporated into connecting portion through opening portion 15h
Part 50 and the opposing part 35a.
According to the structure, when occurring vehicle collision, if applying load downward, connection member 50 to opposing part 35a
By contacting wall 15 (specifically, opening portion 15h peripheral part) extruding.Now, reaction force acts upward are in connection
Part 50.Therefore, periphery of the stress along opening portion 15h concentrates on connection member 50.Accordingly, connection member 50 is in opening portion 15h
Inner side occur cracking and be broken.Then, the fracture of connection member 50 falls together with fixed component 60 through opening portion 15h
Under.Therefore, when a vehicle is in a collision subframe 30 can be made easily to come off.And then, the deformation stroke of front side vehicle frame 20 can be increased
And absorb collision energy.
In addition, in the above-described embodiment, fixed component 60 has：The axle sleeve 61 of tubular, it is incorporated into subframe 30, and
And connection member 50 is connected on the inside of the 15h of opening portion；And bolt 62 and nut 63, it is fixedly connected via axle sleeve 61
Part 50 and opposing part 35a.Hereby it is possible to play following effect.Due to can be between connection member 50 and opposing part 35a
Axle sleeve 61 is clamped, makes opposing part 35a away from opening portion 15h, therefore, it is possible to make stress be easy to concentrate on along the periphery of opening portion 15
Connection member 50.So as to be easily broken off connection member 50.In addition, fixed component 60 can be employed as spare part in common use
Axle sleeve 61, bolt 62 and nut 63, therefore, it is possible to simplify subframe 30 fixed structure.
In addition, in the above-described embodiment, connection member 50 has：Bottom wall 51, it is connected to contacting wall 15 from top；With
And perisporium 52, it is formed with the split of bottom wall 51.Hereby it is possible to play following effect.Due to can be by material different from each other
Bottom wall 51 and perisporium 52 are formed with thickness, therefore, it is possible to improve the free degree of design corresponding with requiring specification.For example, from even
From the viewpoint of relay part 50 is easily broken off, bottom wall 51 can be formed by the material of low intensity.On the other hand, from raising subframe
From the viewpoint of 30 supporting rigidity, the thickness of slab of bottom wall 51 can be increased.
In addition, in the above-described embodiment, perisporium 52 has overlapping portion 17, thickness direction of the overlapping portion 17 in perisporium 52
It is upper overlapping with pedestal 10.Hereby it is possible to ensure rigidity by overlapping portion 17, therefore, it is possible to reduce the thickness of slab of perisporium 52, realize light
Quantify.
In addition, in the above-described embodiment, perisporium 52 has a coupling recess portion 55a, and coupling recess portion 55a is with to overall width direction
Inner side is recessed and mode of overall width direction outside portion along passage crossbeam 6 extends, and is connected to passage crossbeam 6.Hereby it is possible to
Play following effect.Due to the load that can be born to apply from subframe 30 by passage crossbeam 6 via coupling recess portion 55a,
Therefore, it is possible to improve the rigidity around the installation portion of subframe 30 (for example, opposing part 35a and connection member 50 etc.).
In addition, in the above-described embodiment, perisporium 52 has ridge line section 53a, ridge line section 53a and front side vehicle frame 20 rib
Line 20a is continuous, and recessed to the inner side of perisporium 52.Hereby it is possible to play following effect.(the bag when occurring vehicle collision
Containing offset collision), the load that applies from front side vehicle frame 20 can be made from the crest line of the crest line 20a of front side vehicle frame 20 via perisporium 52
Portion 53a and be transferred to pedestal 10.In the present embodiment, multiple bottom plates are arranged with overall width direction because pedestal 10 has
Vehicle frame 11 and center frame 12, therefore, it is possible to make the load of the application be passed to each bottom plate vehicle frame 11 and center frame 12 are scattered
Pass.
In addition, in the above-described embodiment, pedestal 10 has the inclined-plane 12a that leans forward, and the inclined-plane 12a that leans forward is with contacting wall 15
Outer peripheral edge is starting point, is tilted in the direction from front to rear of a vehicle body in the way of being more located lower section towards center.Hereby it is possible to play with
Under effect.When occurring vehicle collision, opposing part 35a can be made to be contacted with the inclined-plane 12a that leans forward, also, make it along top rake
Face 12a is slided downwards, thus, it is easy to apply load downward to opposing part 35a.Therefore, it is possible to make connection member 50
It is easily broken off.
In addition, in the above-described embodiment, longitudinal wall 19 is provided with pedestal 10, the longitudinal wall 19 is from preceding inclined plane 12a's
Protruded upward with the part of the opposite side of contacting wall 15.Hereby it is possible to play following effect.When occurring vehicle collision, energy
After enough making opposing part 35a inclined-plane 12a sliding downwards along leaning forward, according to " lever principle ", using the lower end of longitudinal wall 19 as fulcrum
P1, makes subframe 30 rotate downwards.Therefore, it is possible to make load downward effectively betide fixed component 60.Therefore,
Connection member 50 can be more easily broken off.
In addition, in the above-described embodiment, in the direction from front to rear of a vehicle body, in connection member 50 and the opposite side of pedestal 10,
Between subframe 30 and front side vehicle frame 20, the underarm support 71 of the underarm 70 of supporting suspension is provided with.Hereby it is possible to play
Following effect.The free degree of the design of underarm 70 can be improved, and can be in the direction from front to rear of a vehicle body the one of pedestal 10
The end configuration connection member 50 of square side.
In addition, in the above-described embodiment, subframe 30 has：First connecting portion 41, it connects in the direction from front to rear of a vehicle body
It is connected to the end with the opposite side of pedestal 10 of front side vehicle frame 20；Second connecting portion 42, it is in first connecting portion 41 and opposing part 35a
Between be connected to front side vehicle frame 20；And bending section 43, it is curved downwards between first connecting portion 41 and second connecting portion 42
It is bent.Hereby it is possible to play following effect.When occurring vehicle collision, subframe 30 is that starting point is curved downwards with bending section 43
Song, therefore, according to " lever principle ", can be fulcrum with bending section 43, subframe 30 is rotated downwards.Therefore, it is possible to make
Load downward effectively betides fixed component 60.Therefore, it is possible to which connection member 50 is more easily broken off.
In addition, the technical scope of the present invention is not limited to above-mentioned embodiment, also included in not departing from idea of the invention
In the range of implement the embodiments of various changes to above-mentioned embodiment.That is, structure enumerated in above-mentioned embodiment etc. is only
For one, suitable change can be carried out.
For example, in the above-described embodiment, being illustrated so that side vehicle frame is front side vehicle frame 20 as an example, but be not limited to
This.For example, side vehicle frame can also be rear side frame.Now, subframe 30 can be configured in the rear side of pedestal 10, and by with
Put in the lower section of rear side frame.That is, body structure 1 can also be applicable to the rear portion side of vehicle.
In addition, in the above-described embodiment, be illustrated so that fixed component 60 has screw bolt and nut as an example, but not
It is limited to this.For example, fixed component 60 can also be fastener or rivet etc..
In addition, in the range of idea of the invention is not departed from, the composed component in above-mentioned embodiment can be fitted
When being replaced into known composed component.
Claims (10)
1. a kind of body structure, it is characterised in that
Have：
Pedestal, it is configured in the center of vehicle body fore-and-aft direction；
Subframe, it is configured in a side side of the pedestal in the direction from front to rear of a vehicle body, and is configured in along before and after vehicle body
The lower section of the side vehicle frame of direction extension；
Connection member, it connects the pedestal and the side vehicle frame；And
Fixed component, it fixes the connection member and the subframe,
On the pedestal, the contacting wall for being connected to the connection member from below is formed with,
In the contacting wall, the opening portion being open along the vertical direction is formed with,
The end of the pedestal side in the subframe, is formed with opposing part opposite with the contacting wall from below,
The fixed component is incorporated into the connection member and the opposing part through the opening portion.
2. body structure according to claim 1, it is characterised in that
The fixed component has：The axle sleeve of tubular, it is incorporated into the subframe, and is abutted in the inner side of the opening portion
In the connection member；And screw bolt and nut, it fixes the connection member and the opposing part via the axle sleeve.
3. body structure according to claim 1 or 2, it is characterised in that
The connection member has：Bottom wall, it is connected to the contacting wall from top；And perisporium, itself and the bottom wall split
Formed.
4. body structure according to claim 3, it is characterised in that
The pedestal has overlapping portion, and the overlapping portion is overlapping with the perisporium on the thickness direction of the perisporium.
5. the body structure according to claim 3 or 4, it is characterised in that
Also there is passage crossbeam, the channel part in the overall width direction center of the passage beam supporting bottom plate, and from vehicle body front and back
To observation in inverted U-shaped,
The perisporium has coupling recess portion, and the coupling recess portion is with to recessed on the inside of overall width direction and along the overall width of the passage crossbeam
The mode of direction outside portion extends, and is connected to the passage crossbeam.
6. the body structure according to any one of claim 3~5, it is characterised in that
The perisporium has ridge line section, and the ridge line section and the crest line of the side vehicle frame are continuous and recessed to the inner side of the perisporium
Enter.
7. according to body structure according to any one of claims 1 to 6, it is characterised in that
The pedestal has inclined plane, the inclined plane using the outer peripheral edge of the contacting wall as starting point, in the direction from front to rear of a vehicle body with
The mode for being more located lower section towards center is tilted.
8. body structure according to claim 7, it is characterised in that
Be provided with longitudinal wall on the pedestal, the longitudinal wall from the part of the side opposite with the contacting wall of the inclined plane upward
It is prominent.
9. according to body structure according to any one of claims 1 to 8, it is characterised in that
In the direction from front to rear of a vehicle body, in the subframe and the side vehicle frame of the side opposite with the pedestal of the connection member
Between, it is provided with the underarm support of the underarm of supporting suspension.
10. according to body structure according to any one of claims 1 to 9, it is characterised in that
The subframe has：First connecting portion, it being connected to the side vehicle frame with the pedestal in the direction from front to rear of a vehicle body
The end of opposite side；Second connecting portion, it is connected to the side vehicle frame between the first connecting portion and the opposing part；With
And bending section, it bends downwards between the first connecting portion and the second connecting portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-007726 | 2016-01-19 | ||
| JP2016007726A JP6218050B2 (en) | 2016-01-19 | 2016-01-19 | Body structure |
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| Publication Number | Publication Date |
|---|---|
| CN107031735A true CN107031735A (en) | 2017-08-11 |
| CN107031735B CN107031735B (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611207299.3A Active CN107031735B (en) | 2016-01-19 | 2016-12-23 | Vehicle body structure |
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| Country | Link |
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| JP (1) | JP6218050B2 (en) |
| CN (1) | CN107031735B (en) |
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| CN110920756A (en) * | 2018-09-19 | 2020-03-27 | 马自达汽车株式会社 | Front body structure of vehicle |
| CN111703504A (en) * | 2019-03-18 | 2020-09-25 | 上海汽车集团股份有限公司 | Vehicle and main and auxiliary double-longitudinal-beam connecting mechanism thereof |
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| JP2023103537A (en) | 2022-01-14 | 2023-07-27 | 本田技研工業株式会社 | vehicle front structure |
| US20230415824A1 (en) * | 2022-06-22 | 2023-12-28 | Ford Global Technologies, Llc | Fastener for frame structure of vehicle |
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| CN104284829A (en) * | 2012-05-18 | 2015-01-14 | 本田技研工业株式会社 | Vehicle body frame structure for automobile |
| KR20150067579A (en) * | 2013-12-10 | 2015-06-18 | 주식회사 성우하이텍 | Stud bolt unit |
| KR20150070910A (en) * | 2013-12-17 | 2015-06-25 | 현대자동차주식회사 | Structure for connecting front vehicle body |
| KR20170055759A (en) * | 2015-11-12 | 2017-05-22 | 현대자동차주식회사 | Sub-frame mountingstructure of vehicle for easily separating in collision |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920756A (en) * | 2018-09-19 | 2020-03-27 | 马自达汽车株式会社 | Front body structure of vehicle |
| CN110920756B (en) * | 2018-09-19 | 2022-04-12 | 马自达汽车株式会社 | Front body structure of vehicle |
| CN111703504A (en) * | 2019-03-18 | 2020-09-25 | 上海汽车集团股份有限公司 | Vehicle and main and auxiliary double-longitudinal-beam connecting mechanism thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107031735B (en) | 2019-12-13 |
| JP6218050B2 (en) | 2017-10-25 |
| JP2017128175A (en) | 2017-07-27 |
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