CN107031733A - Vehicle body front structure - Google Patents
Vehicle body front structure Download PDFInfo
- Publication number
- CN107031733A CN107031733A CN201610836460.7A CN201610836460A CN107031733A CN 107031733 A CN107031733 A CN 107031733A CN 201610836460 A CN201610836460 A CN 201610836460A CN 107031733 A CN107031733 A CN 107031733A
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- CN
- China
- Prior art keywords
- section
- vehicle body
- side frame
- front side
- leading section
- 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.)
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
-
- 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
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention provides a kind of small area that can absorb well and biases the vehicle body front structure for colliding the shock loading caused.A kind of vehicle body front structure (10), with left front side frame (13), left side beam (16) and connection member (18).Left side beam (16) is configured on the outside of the overall width direction of left front side frame (13).Left side beam (16) has the 1st bending section (46) and the 2nd bending section (47) set gradually from vehicle front, and close to the 1st frangible portion (64a) and the 2nd frangible portion (64b) formed by the 2nd bending section (47).Connection member (18) has the rake (81a) (reinforcing member inclined wall latter half of) for being arranged at connection rear wall (75a).Rake (81a) front side frame (13) and to vehicle body back sweep to the left.
Description
Technical field
The present invention relates to a kind of vehicle body front structure, wherein, it is configured with curb girder (top on the outside of the overall width direction of front side frame
Component, lower member), the leading section of the curb girder is connected to the leading section of front side frame.
Background technology
It is known to have a kind of vehicle body front structure, wherein, lower member is configured with the outside of the overall width direction of front side frame (following
Referred to as " curb girder (side member) "), the leading section of curb girder is connected to the leading section of front side frame by reinforcing member (gusset).
Reinforcing member is formed as being in general triangular in a top view.
Therefore, when occurring small area biasing collision, shock loading is inputted to reinforcing member from the leading section of curb girder, and what is inputted rushes
Hit load and be transferred to front side frame on the outside of car.Hereby it is possible to make front side frame become to power unit side from the load transmitted
Shape, so as to absorb load (for example, referring to patent document 1 by front side frame.).
However, when vehicle weight is increased or collided with higher speed, can by the load applied is larger
Peeling off phenomenon can be caused because the junction surface between the leading section of reinforcing member and curb girder occurs shearing.Therefore, because not adding
Junction surface between the leading section of firmware and curb girder, reinforcing member and barrier stagger, it is difficult to make front side frame to power by reinforcing member
Sufficiently deformation occurs for cell side, it is necessary to ensure to bias small area the suction for the energy for colliding the shock loading caused by every means
Receipts amount.
Additionally, it is known that have a kind of vehicle body front structure, wherein, the leading section of curb girder is formed as curved to the leading section of front side frame
Curved, forniciform leading section is connected to the leading section of front side frame by reinforcing member.Frangible portion is formed with the leading section of curb girder
(for example, referring to patent document 2.).
Therefore, when occurring small area biasing (narrow offset) collision, shock loading is input to the front end of curb girder
Portion, the shock loading applied makes curb girder be deformed from frangible portion to front side frame side.Accordingly, reinforcing member becomes to front side frame
Shape, makes front side frame be deformed to power unit side by reinforcing member.By making front side frame deform, front side frame can be utilized
To absorb load.
But, the vehicle body front structure of patent document 2 is formed with frangible portion on curb girder.Accordingly, it is difficult to be inhaled by curb girder
Zoom in area biasing and collide the shock loading caused, based on this point, the leeway being also improved.
Prior art literature
Patent document
Patent document 1：No. 5469697 publication of Japanese Patent Laid
Patent document 2：Japanese Patent Laid-Open 2015-54591 publications
The content of the invention
The shock loading that collision is caused is biased it is an object of the invention to provide a kind of small area that can absorb well
Vehicle body front structure.
The 1st scheme of the present invention is that a kind of vehicle body front structure has：
Front side frame, it extends to vehicle body fore-and-aft direction；
Front pillar 14, it is arranged on the outside of the overall width direction of the front side frame；
Curb girder, it extends from the front pillar 14 to vehicle front；With
Connection member, the leading section of the curb girder is connected to the leading section of the front side frame by it,
The vehicle body front structure is characterised by,
The curb girder is configured on the outside of the overall width direction of the front side frame and substantially in parallel with the front side frame, is had：
1st bending section and the 2nd bending section, both pull open interval along vehicle body fore-and-aft direction and set gradually from vehicle front；And
Frangible portion, it is formed between the 1st bending section and the 2nd bending section and close to the 1st bending section,
The connection member has rake, and the rake is arranged at the rear wall of the connection member, to the front side frame and to car
Body back sweep.
So, the 1st bending section and the 2nd bending section are set in curb girder, it is between the 1st bending section and the 2nd bending section and close
1st bending section sets frangible portion.Therefore, when because occurring the leading section that small area biasing colliding and having shock loading to be input to curb girder
When, frangible portion can be made to deform.Hereby it is possible to suppress engagement of the stress concentration between the leading section of curb girder and connection member
Portion, suppresses junction surface peeling off phenomenon.
Moreover, in so-called " small area biasing is collided " (i.e. the overlapping collision of small area or small range are collided), the front portion for referring to vehicle
, the barrier such as the front side portion in the outside of 1/4 front side frame for accounting for overall width direction and vehicle, trees or electric pole occurs rushes
Hit.
Moreover, setting frangible portion between the 1st bending section and the 2nd bending section and close to the 1st bending section.That is, the 1st is being left
The position of bending section or the 2nd bending section sets frangible portion.Therefore, it is possible in the case where not influenceing frangible portion, by being input to
The shock loading of the leading section of curb girder, makes the 1st bending section and the 2nd bending section to the rightly bending of defined wrap direction.
Hereby it is possible to make curb girder be deformed by bending in the way of substantially zigzag, shock loading is absorbed by curb girder.By making
Curb girder is deformed, and the leading section of curb girder is moved to vehicle body rear.
Here, being bonded to the outer end of connection member in the leading section of curb girder.Therefore, by the leading section of curb girder to vehicle body
Moved to vehicle body rear the movement at rear, the outer end of connection member.By shifting from the outer end of connection member to vehicle body rear
Dynamic, the rearward end of connection member is to overall width direction medial movement.Hereby it is possible to using the rearward end of connection member make front side frame with
Deform to absorb shock loading to the mode of power set side bending.
So, the front end that curb girder is input to because occurring small area biasing and colliding is absorbed by curb girder and front side frame both parts
The shock loading in portion, by increasing capacitance it is possible to increase the uptake of the energy of impact loading.
Moreover, configuring curb girder in the mode almost parallel with front side frame.Therefore, it is possible to ensure sky between front side frame and curb girder
Between.Hereby it is possible to the configuration glass for vehicle window cleaning appurtenances such as water tank or battery in space between front side frame and curb girder.
The 2nd scheme of the present invention is that preferably described vehicle body front structure also has impact absorbing member, the impact absorbing
The lateral vehicle front in each leading section of part from the front side frame and the connection member is protruded.
So, protrude the lateral vehicle front in each leading section of impact absorbing member from front side frame and connection member.Therefore,
When the slight collision of generation, front impact or biasing are collided, the applied collision of each collision can be absorbed by impact absorbing member
Load.Hereby it is possible to increase the uptake of the energy to colliding load.
In addition, so-called " front impact ", refers to that striking face covers the frontal collisions of the whole banner state of headstock.In addition, so-called " inclined
Put collision ", refer to that striking face covers the collision of a part (30~50% or so) for vehicle frontal (above).
The 3rd scheme of the present invention is that preferably described curb girder is formed the closed cross-section of hollow form by its perisporium,
The perisporium, the ridge line section of the perisporium are formed with the frangible portion, and the frangible portion is formed as from recess, convex portion, opening, breach
The shape of middle selection, the shock loading of the leading section by being input to the curb girder, the frangible portion deforms, accordingly, institute
Frangible portion bending is stated for plastic hinge chain.
So, in the ridge line section formation frangible portion of perisporium, perisporium, frangible portion is formed as from recess, convex portion, opening, breach
The shape of middle selection.That is, the combination of the number and shape of frangible portion can be selected.
Therefore, it is possible to easily adjust bending intensity (intensity of warpage) of the frangible portion to the 1st bending section near frangible portion.According to
This, can make curb girder rightly bending.
The 4th scheme of the present invention, which is that preferably described curb girder has, accommodates recess, and the receiving recess is in the leading section of the curb girder
Accommodate the outer end of the connection member.
So, have in the leading section of curb girder and accommodate recess, accommodating the outer end of recess receiving connection member.That is, energy
Enough receiving recesses in the leading section of curb girder are firmly attached the outer end of connection member.
Therefore, it is possible to which the shock loading biased because of small area caused by colliding is transferred into front side frame from connection member.Hereby it is possible to
Front side frame is set to deform to absorb shock loading to power unit side.
The 5th scheme of the present invention is that preferably described connection member has：
Reinforcing member, it is formed as, and is engaged in the leading section of the front side frame, with the rake, is in substantially three when overlooking
It is angular, and section is in substantially U-shaped；With
Connecting elements, it is formed as, and the leading section of the curb girder is extended to from the reinforcing member along overall width direction, section is in substantially
U-shaped.
So, connecting elements is extended to the leading section of curb girder from reinforcing member, connecting elements is formed as section in substantially U
Font.Therefore, the outer end of connection member is formed as section in substantially U-shaped, can compactly put in order arrangement.Hereby it is possible to
The outer end of connection member is contained in the receiving recess of the leading section of curb girder.
In addition, by making connecting elements be extended to from reinforcing member on the outside of overall width direction, the rear wall of connecting elements can be configured at
Vehicle front side.Hereby it is possible to ensure that the space between front side frame and curb girder is larger.
The 6th scheme of the present invention is that preferably described connection member also has strengthening part, and the strengthening part is added by described
Each ridge line section of firmware and the connecting elements is continuously set and the continuous each ridge line section of strengthening part covering is each to strengthen
Ridge line section.
Herein, it may be considered that be reinforced part and connecting elements by connection member and split, in reinforcing member and connecting elements
Junction surface forms bending section.
Therefore, in the 6th scheme, the continuous ridge line section of reinforcing member and connecting elements is covered using strengthening part, so as to utilize
Strengthening part strengthens each ridge line section.Therefore, bending section is formed even in the junction surface of reinforcing member and connecting elements, can also utilizes and add
Strong part strengthens bending section.
Hereby it is possible to which the shock loading that the leading section of curb girder is will enter into via connection member is efficiently transfer to front side frame.
The 7th scheme of the present invention, which is that preferably described curb girder has in the corner of the receiving recess, avoids recess, the company
Relay part also has attachment, and the attachment connect the bottom of the curb girder and the connecting elements, attachment tool
There is the bending section being engaged along around the avoidance recess.
So, formed in the corner for accommodating recess and avoid recess.The outer end of connection member is accommodated accommodating recess (i.e.
The outer end of connecting elements).In addition, connecting the bottom of curb girder and connecting elements using attachment.And then, along avoidance recess
Surrounding engages the bending section of attachment.
Therefore, even if shock loading is input to the leading section of curb girder, when the angle change of curb girder and connecting elements is big, bending can also be made
Portion deforms, and keeps the state engaged along avoiding around recess.Hereby it is possible to further securely by the outer of connecting elements
End is engaged in receiving recess.
The 8th scheme of the present invention is that preferably described front side frame is by inwall, outer wall, upper and lower part Formation cross-section in substantially
The closed cross-section of rectangle,
With vehicle frame strengthening part, it is configured at the inside of the front side frame, and is engaged in the length range of the front side frame
In the inwall, the top and the bottom.
So, vehicle frame strengthening part is engaged in inwall, upper and lower part in the length range of front side frame.Accordingly, it is capable to
Enough improve the intensity of front side frame well using vehicle frame strengthening part.
Accordingly, shock loading makes the front side frame of high intensity to the substantially horizontally bending of overall width direction, so as to increase to impact
The uptake of the energy of load.
The 9th scheme of the present invention is that preferably described vehicle body front structure also has installing component, and the installing component will impact
Absorption piece is installed on each leading section of the front side frame and the connection member,
The outer edge bead of the front end of the reinforcing member is bonded in the installing component,
The rear wall of the connecting elements is configured with the vehicle body rear at the outer edge bead and the junction surface of the installing component,
Opening is formed with the rear wall stood facing each other with the junction surface.
So, impact absorbing member is provided with by installing component in each leading section of front side frame and connection member.In addition,
The outer edge bead of the front end of reinforcing member is set to be engaged in installing component.Moreover, behind the junction surface of installing component and outer edge bead
Side is configured with the rear wall of connecting elements.Opening is formed with the rear wall stood facing each other with the junction surface.
Therefore, it is possible to implement spot welding engagement to installing component and outer edge bead using opening.By the way that installing component and outer rim is convex
Edge is engaged, can be via outer edge bead (i.e.：Reinforcing member) shock loading that installing component is input to from impact absorbing member is high
It is transferred to front side frame to effect.
Hereby it is possible to make front side frame rightly be deformed because of shock loading, shock loading is absorbed well using front side frame.
The 10th scheme of the present invention is that preferably described impact absorbing member has：
1st shock absorbing portion, its closed cross-section has multiple zonules, and the closed cross-section extends to vehicle body fore-and-aft direction；With
2nd shock absorbing portion, it is arranged on the outside of the overall width direction of the 1st shock absorbing portion, and its closed cross-section has multiple small
Region, and the closed cross-section to vehicle body fore-and-aft direction extend.
So, by setting the 2nd shock absorbing portion on the outside of the overall width direction of the 1st shock absorbing portion, in the 1st impact absorbing
Portion adds the 2nd shock absorbing portion, can increase the section of impact absorbing member.
Moreover, making the 1st shock absorbing portion be formed as the closed cross-section with multiple zonules, be formed as the 2nd shock absorbing portion
Closed cross-section with multiple zonules.
By increasing the section of impact absorbing member, the closed cross-section of impact absorbing member is divided into multiple zonules,
The intensity of impact absorbing member can be improved well.Accordingly, the impact absorbing member of high intensity, can by shock loading conquassation
Increase the uptake of the energy of impact absorbing member impact loading.
In addition, making the closed cross-section of the 1st shock absorbing portion be formed as extending to vehicle body fore-and-aft direction.Similarly, the 2nd punching is made
The closed cross-section for hitting absorption portion is formed as extending to vehicle body fore-and-aft direction.Hereby it is possible to utilize aluminium for example with extrusion forming
The light metal components such as alloy manufacture the 1st shock absorbing portion and the 2nd shock absorbing portion, can simply manufacture impact absorbing member.
The 11st scheme of the present invention is that preferably described vehicle body front structure also has bumper, and it is installed on the impact
The leading section of absorption piece,
The bumper has：
Bumper body, its end is installed on the leading section of the impact absorbing member, is formed with the envelope with multiple zonules
Closing cross section, and have opening in the end；With
End plate, the opening of its inaccessible end, and it is connected to the outer wall of the impact absorbing member.
So, can be by bumper body by making bumper body be formed as the closed cross-section with multiple zonules
Closed cross-section be divided into zonule.And then, using the opening of the end of the inaccessible bumper body of end plate, end plate is engaged in punching
Hit the outer wall of absorption piece.Accordingly, the intensity of the end of bumper body is improved.The end of the bumper body is installed on punching
Hit the leading section of absorption piece.
Therefore, it is possible to the end by bumper body is input to because occurring small area biasing and colliding shock loading from bumper
Transmitted to the leading section whole region of impact absorbing member the end of main body.Accordingly, the shock loading conquassation impact transmitted is inhaled
Receive the whole region of part, by increasing capacitance it is possible to increase the uptake of the energy of impact loading.
The 12nd scheme of the present invention is that preferably described vehicle body front structure also has：
Subframe, it is installed on the front side frame from below；
Steering box, it is installed close to the rearward end of the subframe；With
Lower instrument board, it is arranged at the vehicle body rear of the steering box,
The leading section of the subframe is installed on the leading section of the front side frame, by the shock loading applied from vehicle front,
The subframe bending is substantially V-shaped.
So, the leading section of subframe is installed on to the leading section of front side frame.In addition, the impact applied from vehicle front is carried
Lotus make subframe bending for substantially V-shaped (i.e.：Bending is " paddy folding " state).Therefore, upward power acts on subframe
Leading section.
Here, the leading section of front side frame is connected to the leading section of curb girder by connection member.Therefore, there is upward power effect
In the leading section of curb girder.In this condition, in the 1st bending section, the 2nd bending section bending occurs for curb girder, passes through the 1st bending section, the 2nd
Lift vehicle body front structure in bending section.
By lifting vehicle body front structure, lower instrument board is lifted.
Therefore, subframe bending be substantially V-shaped, steering box to vehicle body rear move when, tooth sector can be made
The lower section movement of the downward instrument board of case.Hereby it is possible to substantially ensure that the deflection of front side frame and curb girder, by increasing capacitance it is possible to increase impact is carried
The uptake of the energy of lotus.
According to the present invention, the shock loading caused by small area biases collision is absorbed by curb girder and front side frame, can be fine
Ground is absorbed because small area biases the shock loading caused by colliding.
Brief description of the drawings
Fig. 1 is the stereogram for showing the vehicle body front structure of the present invention.
Fig. 2 is the direction view from Fig. 1 " 2 " direction.
Fig. 3 is the side view for the vehicle body front structure for showing Fig. 1.
Fig. 4 is the direction view from Fig. 1 " 4 " direction.
Fig. 5 is the exploded perspective view for the vehicle body front structure for showing Fig. 4.
Fig. 6 is the stereogram for showing the vehicle frame strengthening part that Fig. 5 left front side frame has.
Fig. 7 is the enlarged drawing in Fig. 1 " 7 " portion.
Fig. 8 is the profile along Fig. 7 8-8 lines.
Fig. 9 is the direction view from Fig. 7 " 9 " direction.
Figure 10 is the sectional view along Fig. 3 10-10 lines.
Figure 11 is the direction view from Fig. 7 " 11 " direction.
Figure 12 is the stereogram for showing to block the state of Fig. 7 left impact absorbing member.
Figure 13 is come to because the shock loading that generation small area biasing is collided and applied is entered to the vehicle body front structure with the present invention
The figure that the example that row absorbs is illustrated.
Figure 14 is the stereogram for the variation for showing the frangible portion of the present invention.
Embodiment
Below, referring to the drawings, the preferred embodiment of the present invention is illustrated.Moreover, " preceding (Fr) ", " rear (Rr) ", "
The direction that left (L) ", " right (R) " are observed by driver is defined.
【Embodiment】
The vehicle body front structure 10 of embodiment is illustrated.
As shown in figure 1, position of the vehicle body front structure 10 for composition vehicle Ve front portion structure.Vehicle body front structure 10 has：
The left front side frame 13 and forward right side frame 13 extended to vehicle body fore-and-aft direction；It is arranged at the left side on the outside of the overall width direction of each front side frame 13
Front pillar 14 and right front pillar 14；It is arranged at the lower instrument board 15 between each front pillar 14；And extend from each front pillar 14 to vehicle front
Left side beam 16 and right side beam 16.
As shown in Figure 1 and Figure 2, vehicle body front structure 10 has：Left connection member 18, it is by the leading section 16a of left side beam 16
It is connected to the leading section 13a of left front side frame 13；Right connection member 18, the leading section 16a of right side beam 16 is connected to forward right side by it
The leading section 13a's of frame 13；Left installing component 19, it is installed on the leading section 13a and left connection member 18 of left front side frame 13；With
Right installing component 19, it is installed on the leading section 13a and right connection member 18 of forward right side frame 13.
In addition, vehicle body front structure 10 has：Impact absorbing member 21, it is installed on each installing component 19；And bumper
(bumper beam) 22, its leading section 21a for being erected at left impact absorbing member 21 and right impact absorbing member 21 leading section
21a。
Engine room 24 is formed by left front side frame 13, forward right side frame 13 and bumper 22.Dynamic list is configured in engine room 24
Member 25.Power unit 25 is, for example, that engine and speed changer realize the unit of integration.
As shown in figure 3, vehicle body front structure 10 has：The secondary car of left front side frame 13 and forward right side frame 13 is installed on from below
Frame 27；The steering box 28 installed with the rearward end close to subframe 27.
Moreover, vehicle body front structure 10 is the substantially symmetric structure in left and right.Therefore, to the left side of vehicle body front structure 10
Part and right side members assign identical mark, and are described in detail only for left-hand side part, omit the explanation to right side members.
As shown in Figure 4, Figure 5, left front side frame 13 extends to vehicle body fore-and-aft direction, with vehicle frame inwall (inwall) 31, vehicle frame
Outer wall (outer wall) 32, vehicle frame top (top) 33 and frame downward (bottom) 34.
By vehicle frame inwall 31, vehicle frame outer wall 32, vehicle frame top 33 and frame downward 34, left front side frame 13 is formed as section in big
Cause the closed cross-section of rectangle.That is, left front side frame 13 is the part of high intensity.
There is vehicle frame strengthening part 36 in the inside 35 of left front side frame 13.
As shown in fig. 6, vehicle frame strengthening part 36 is configured at the inside 35 of left front side frame 13.In this condition, vehicle frame is strengthened
Part 36 is engaged in vehicle frame inwall 31 (reference picture 5), vehicle frame top 33 and frame downward 34.
That is, vehicle frame strengthening part 36 by the position of each several part along vehicle frame inwall 31, vehicle frame top 33 and frame downward 34,
Be formed as section in substantially U-shaped.
Vehicle frame strengthening part 36 left front side frame 13 from leading section 13a in rearward end 13b length range to vehicle body
Fore-and-aft direction extends.Therefore, it is possible to which the intensity of left front side frame 13 is improved using vehicle frame strengthening part 36 well.
Accordingly, shock loading F1 makes the left front side frame 13 of high intensity substantially horizontally be bent to overall width direction, so as to increase
To the uptake of the energy of the shock loading F1 caused by front impact.
Fig. 1 is returned to, left front post 14 is provided with the outside of the overall width direction of left front side frame 13.In addition, in forward right side frame 13
Right front pillar 14 is provided with the outside of overall width direction.
Between left front post 14 and right front pillar 14, lower instrument board 15 is provided with.Lower instrument board 15 is engaged in after left front side frame 13
End 13b and forward right side frame 13 rearward end 13b.
As shown in Figure 2 and Figure 3, left side beam 16 is from left front post 14 is in vehicle front and extends downwards.Left side beam 16 is overlooked
Configured in figure relative to left front side frame 13 on the outside of the overall width direction of left front side frame 13 and substantially in parallel.
Therefore, it is possible to ensure space 38 between left front side frame 13 and left side beam 16.Hereby it is possible in left front side frame 13 and left side
The configuration of the space 38 glass for vehicle window cleaning appurtenances such as water tank and battery between beam 16.
Left side beam 16 has：The upper component 43 extended from left front post 14 via left damper housing 41 to vehicle front；
With lower member 44 from the leading section 43a from upper component 43 to the oblique extension of vehicle front.
Upper component 43 is that its perisporium is formed the closed cross-section of hollow form (specifically, section is in the form of a substantially rectangular
Closed cross-section), part with higher-strength.The upper component 43 has：It is approximate horizontal to vehicle front from left front post 14
The latter half of 43b of extension；With extend in vehicle front and downwards forniciform first half 43c since latter half of 43b.
In latter half of 43b and first half 43c portion of reporting to the leadship after accomplishing a task, the 1st bending section 46 is formed as convex in the way of bulging upward
Shape bending.1st bending section 46 for can in the presence of the leading section 16a shock loading F2 of left side beam 16 is input to, and with
The position that the mode of bending deforms upward.
Lower member 44 extends in vehicle front and downwards bending since the leading section 43a of upper component 43.
As shown in Figure 7, Figure 8, lower member 44 has：Lower bending section 44a, it is opened from the leading section 43a of upper component 43
Begin, extend in vehicle front and downwards bending；With leading section (i.e.：The leading section of left side beam 16) 16a, it is from lower bending
The portion 44a horizontal bendings of front end 44b.
Same with upper component 43, lower member 44 is to be formed the closed cross-section of hollow form (specifically, by perisporium 51
The closed cross-section of section in the form of a substantially rectangular), the part of high intensity.Perisporium 51 passes through component inwall 52, component outer wall 53, component
Top 54 and member lower 55 are formed the closed cross-section of section in the form of a substantially rectangular.
By making perisporium 51 be formed as the closed cross-section of section in the form of a substantially rectangular, and ridge line section on interior is formed on perisporium 51
56th, interior lower edgeline portion 57, outside upper ridge line section (ridge line section) 58 and outer lower edgeline portion 59.In addition, upper flange 61 is from interior upper ridge line section
56 protrude upward.Moreover, lower flange 62 is protruding outside from outer lower edgeline portion 59 to overall width direction.
In addition, lower member 44 has the 2nd bending section 47, frangible portion 64, accommodates recess 65 (reference picture 9) and avoids recess
66 (reference pictures 9).
2nd bending section 47 is formed at lower bending section 44a and leading section 16a border.With the 2nd bending section 47 (reference picture 3) equally,
2nd bending section 47 is can be in the presence of the leading section 16a shock loading F2 of left side beam 16 be input to, and with to vehicle body rear
The position that the mode of bending deforms.
That is, left side beam 16 has the and of the 2nd bending section 47 set gradually along vehicle body fore-and-aft direction holding compartment of terrain, from vehicle front
1st bending section 46.
Frangible portion 64 is set between the 1st bending section 46 and the 2nd bending section 47 and close to the 2nd bending section 47.It is specific and
Speech, frangible portion 64 is formed at from perisporium 51, outside upper ridge line section 58, upper flange 61 and lower flange 62 etc. close to the 2nd bending section 47
The position of middle selection.Moreover, frangible portion 64 is formed as the shape selected from recess, convex portion, opening and breach.
It is thereby possible to select the combination of the number and shape of frangible portion 64.Hereby it is possible to easily adjust the phase of frangible portion 64
For the buckling strength (intensity of bending) of the 2nd bending section 47 near frangible portion 64.
That is, the buckling strength of frangible portion 64 can be adjusted, so that left side beam 16 is well in the 2nd bending section 47 and the 1st bending section
46 occur bending.
In embodiment, recess 64a is formed at outside upper ridge line section 58 as the 1st frangible portion.Hereinafter, recess 64a is claimed
For " the 1st frangible portion 64a ".In addition, breach 64b is formed at lower flange 62 as the 2nd frangible portion.Hereinafter, breach 64b is referred to as
" the 2nd frangible portion 64b ".
Accordingly, connection the 1st frangible portion 64a and the 2nd frangible portion 64b extended line (being shown with imaginary line), which turns into, has plastic hinge
The position of function.Hereinafter, the position with plastic hinge function is referred to as " hinge position 68 ".
That is, as shown in Fig. 2 being input to the leading section 16a of left side beam 16 shock loading F2 makes the 1st frangible portion 64a or the 2nd
Frangible portion 64b deforms.Accordingly, hinge position 68 as shown in phantom, using the 1st frangible portion 64a or the 2nd frangible portion 64b as
Starting point, is bent into plastic hinge chain.
Hereby it is possible to suppress engagement of the stress concentration between the leading section 16a of left side beam 16 and the outer end 18a of connection member 18
Portion, can suppress leading section 16a and the outer end 18a of connection member 18 is peeled off.
Recess 65 is accommodated as shown in figure 9, having in the leading section 16a of left side beam 16.Recess 65 is accommodated in left side beam 16
The leading section 16a formation of component inwall 52 opening portion 71.From opening portion 71, insertion accommodates recess to the outer end 18a of connection member 18
65, accommodate the outer end 18a of connection member 18 in receiving recess 65.
In this condition, the outer end 18a of connection member 18 is engaged in the leading section 16a of left side beam 16 by welding etc..That is, exist
The leading section 16a of left side beam 16 receiving recess 65 is firmly attached the outer end 18a of connection member 18.
Therefore, as shown in Fig. 2 being input to the leading section 16a of left side beam 16 impact because occurring small area biasing and colliding
Load F2, makes the leading section 16a of left side beam 16 be moved as shown by arrow A to vehicle body rear.Left side beam 16 in the 2nd bending section 47 and
Bending occurs for the 1st bending section 46, absorbs shock loading F2.
Moreover, so-called " small area biasing is collided " is (i.e.：The overlapping collision of small area or small range are collided), refer to vehicle it is anterior in
, the barrier such as the front side portion in the outside of accounting for overall width direction 1/4 front side frame 13 and vehicle, trees or electric pole occurs rushes
Hit.
Here, the receiving recess 65 in left side beam 16 is firmly attached the outer end 18a of connection member 18.Therefore, by
Moved as shown by arrow A to vehicle body rear from the leading section 16a of left side beam 16, the outer end 18a of connection member 18 is to after vehicle body
Fang Yidong.
By the outer end 18a of connection member 18 to the movement at vehicle body rear, the rearward end 18b such as arrow B institutes of connection member 18
Show to overall width direction medial movement.
Hereby it is possible to using the rearward end 18b of connection member 18, make left front side frame 13 in the way of to the side bending of power unit 25
Deform, to absorb shock loading F2.
So, when thering is shock loading F2 to be input to the leading section 16a of left side beam 16 because occurring small area biasing and colliding,
Shock loading F2 can be absorbed using left side beam 16 and the both parts of left front side frame 13.Impact is carried hereby it is possible to increase
The uptake of lotus F2 energy.
Fig. 9 is returned to, corner 71a is formed in the downside for accommodating the opening portion 71 of recess 65, the corner 71a formation in downside is kept away
Allow recess 66.That is, the member lower 55 that recess 66 is formed at the leading section 16a of left side beam 16 is avoided.Pass through the corner in downside
71a formation avoids recess 66, to suppress stress concentration in corner 71a.
Along the avoidance recess 66, the attachment for being bonded to connection member 18 (specifically, engage bending section 77a (bendings
Portion)) 77.
That is, as shown in fig. 7, left side beam 16 has the 1st bending section 46 (reference picture 3), the 2nd bending section 47, the 1st frangible portion
64a, the 2nd frangible portion 64b, receiving recess 65 and avoidance recess 66 (reference picture 9).
Here, being provided with the 1st frangible portion 64a or the 2nd frangible portion 64b close to the 2nd bending section 47.Therefore, when because occurring small area
When biasing collides and has the shock loading F2 to be input to the leading section 16a of left side beam 16, hinge position 68 with the 1st frangible portion 64a or
2nd frangible portion 64b is that starting point is deformed into plastic hinge chain.
Hereby it is possible to suppress engagement of the stress concentration between the leading section 16a of left side beam 16 and the outer end 18a of connection member 18
Portion, can suppress junction surface peeling-off.
In addition, as shown in figure 3, being formed with the 1st bending section 46 and the 2nd bending section 47 in left side beam 16.Therefore, when there is impact
When load F2 is input to the leading section 16a of left side beam 16 from vehicle front, the 2nd bending section 47 is as shown by arrow C to vehicle body rear
Bending, the bending upward as shown by arrow A of the 1st bending section 46.
Accordingly, left side beam 16 is deformed into substantially Z-shaped (being shown with imaginary line).
Moreover, by setting the 1st frangible portion 64a or the 2nd frangible portion 64b (reference picture 7), energy close to the 2nd bending section 47
The 1st frangible portion 64a and the 2nd frangible portion 64b is enough set to leave the 2nd bending section 47 or the 1st bending section 46.
Therefore, the 1st bending section 46 and the 2nd bending section 47 can be made by being input to the leading section 16a of left side beam 16 shock loading F2
Well to defined wrap direction bending, without producing influence to the 1st frangible portion 64a or the 2nd frangible portion 64b.Accordingly, energy
It is enough left side beam 16 is deformed in the way of being bent into substantially zigzag conscientiously, impact can be absorbed using left side beam 16 and is carried
Lotus F2.
As shown in Fig. 5, Figure 10, the leading section 16a of left side beam 16 is connected to before left front side frame 13 by connection member 18
End 13a.Connection member 18 has：Reinforcing member 74, it is engaged in the leading section 13a of left front side frame 13；Connecting elements 75, its from
Reinforcing member 74 extends to the leading section 16a of left side beam 16 along overall width direction；Strengthening part 76, it is arranged at reinforcing member 74 and connection
Component 75；With attachment 77, it connects left side beam 16 and connecting elements 75.
Reinforcing member 74 is engaged in vehicle frame outer wall 32 at the leading section 13a of left front side frame 13 from overall width direction outside.That is,
Reinforcing member 74 be as sheet metal bending be shaped to section it is u-shaped formed by, its be formed as in a top view be in general triangular,
And with reinforcing member inclined wall 81.In addition, being formed with ridge line section (crest line on reinforcing member along the upper limb of reinforcing member inclined wall 81
Portion) 82.Moreover, being formed with reinforcing member lower edgeline portion 83 along the lower edge of reinforcing member inclined wall 81.
In addition, there is outer edge bead 84 in the front end 74a of reinforcing member 74.
The inner end flange of reinforcing member 74 is engaged in vehicle frame outer wall 32, and the front end 74a of reinforcing member 74 outer edge bead 84 is engaged
In left installing component 19.By making the inner end flange of reinforcing member 74 be engaged in vehicle frame outer wall 32, and outside reinforcing member 74 and vehicle frame
Wall 32 is formed as closed cross-section in the form of a substantially rectangular.Thus it is ensured that the intensity of reinforcing member 74.
Left installing component 19 is installed on the leading section 13a of left front side frame 13 and the leading section 16a of left side beam 16.
In the state of reinforcing member 74 is engaged in vehicle frame outer wall 32 and left installing component 19, reinforcing member inclined wall 81 is from left installation portion
Part 19 is tilted to vehicle frame outer wall 32 towards overall width direction inner side.Connecting elements 75 is extended to from reinforcing member 74 along left installing component 19
The leading section 16a of left side beam 16.
Connecting elements 75 is that section is shaped to as sheet metal bending in formed by substantially U-shaped, and with the upper crest line of connection
Portion's (ridge line section) 86 and connection lower edgeline portion 87.Ridge line section 86 is continuous with ridge line section 82 on reinforcing member in connection, connects lower edgeline
Portion 87 and reinforcing member lower edgeline portion 83 are continuous.
The inner of connecting elements 75 is engaged in the front portion of reinforcing member, and the front end of connecting elements 75 is engaged in left installing component 19.It is logical
Crossing makes the front end of connecting elements 75 be engaged in left installing component 19, to utilize connecting elements 75 and the formation of left installing component 19 in big
Cause the closed cross-section of rectangle.Thus it is ensured that the intensity of connecting elements 75.
As shown in figure 11, by the latter half of 81a and the connection rear wall 75a of connecting elements 75 of reinforcing member inclined wall 81, formed
The rear wall 79 of connection member 18.Therefore, the rear wall 79 of connection member 18 has the latter half of 81a shapes using reinforcing member inclined wall 81
Into rake 81a.
In addition, outer edge bead 84 is engaged in left installing component 19.At the junction surface 89 of outer edge bead 84 and left installing component 19
Vehicle body rear, is configured with the connection rear wall 75a of connecting elements 75.In addition, the portion stood facing each other upon connection in wall 75a with junction surface 89
Position, forms opening 91.
Therefore, it is possible to utilize opening 91, left installing component 19 and outer edge bead 84 are engaged by spot welding.
By engaging left installing component 19 and outer edge bead 84, left peace can will be input to from left impact absorbing member 21
The shock loading F2 of dress part 19 is efficiently transfer to left front side frame 13 via outer edge bead 84 (that is, reinforcing member 74).
Accordingly, shock loading F2 makes left front side frame 13 successfully deform, and can absorb punching well using left front side frame 13
Hit load F2.
As shown in Fig. 5, Figure 11, connection member 18 is reinforced part 74 and connecting elements 75 separates, accordingly, reinforcing member 74 and company
Connection member 75 is connected as case of bending.Therefore, the bending section of reinforcing member 74 and connecting elements 75 is strengthened by strengthening part 76.
That is, the reinforcement top 76a of strengthening part 76 is engaged in each top of reinforcing member 74 and connecting elements 7.In addition, strengthening part 76
Strengthen rear wall 76b and be engaged in reinforcing member inclined wall 81 and connection rear wall 75a.
In this condition, ridge line section 82 and the upper ridge line section 86 of connection are reinforced portion on the continuous reinforcing member for substantially V-shaped
Part 76 is covered.Therefore, even if reinforcing member 74 and the engagement of connecting elements 75 are case of bending, it can also strengthen adding using strengthening part 76
The bending junction surface of firmware 74 and connecting elements 75.
Hereby it is possible to which the shock loading F2 that will enter into the leading section 16a of left side beam 16 is efficiently transmitted via connection member 18
To left front side frame 13.
As shown in figure 9, the leading section 16a of left side beam 16 and the outer end 18a of connection member 18 are connected by attachment 77
Connect.Specifically, each outer end (that is, the outer end 18a of connection member 18) of connecting elements 75 and strengthening part 76 is being accommodated
Engagement is (referring concurrently to Figure 10) in the state of the receiving recess 65 of left side beam 16.
The connection bottom (bottom) 78 of connecting elements 75 is configured to, and is in the leading section 16a of left side beam 16 member lower 55
Substantially conplane state.
In this condition, attachment 77 are engaged in the leading section 16a of left side beam 16 member lower (bottom) 55 and connected
The connection bottom 78 of connection member 75.Attachment 77 have engagement bending section 77a, the engagement bending section 77a along receiving recess
65 avoid is engaged around recess 66.
Here, avoiding the member lower 55 that recess 66 is formed at the leading section 16a of left side beam 16.Therefore, the front end of left side beam 16
Portion 16a member lower 55 and the connection bottom 78 of connecting elements are connected by attachment 77.
So, member lower 55 and connection bottom 78 are connected by attachment 77, recessed along the avoidance for accommodating recess 65
Lower bending section 44a is bonded to around portion 66.Therefore, though when shock loading F2 is input to the leading section 16a of left side beam 16, it is left
When angle, θ between curb girder 16 and connection member 18 becomes big, it can also remain along with the change of angle, θ engagement bending section 77a
Avoid the state engaged around recess 66.Hereby it is possible to which the outer end 18a of connection member 18 more firmly is engaged in into receiving
Recess 65.
In addition, as shown in Figure 10, connecting elements 75 extends to the leading section 16a of left side beam 16 from reinforcing member 74, structure is connected
Part 75 is formed as section in substantially U-shaped.Therefore, the outer end 18a of connection member 18 is formed as section in substantially U-shaped, energy
It is enough compactly to put in order arrangement.Hereby it is possible to the outer end 18a of connection member 18 is contained in the leading section 16a of left side beam 16
Accommodate recess 65.
In addition, by making connecting elements 75, from reinforcing member 74 to overall width direction, outside extends, can be by the connection of connecting elements 75
Rear wall 75a is configured at vehicle front side.(join simultaneously hereby it is possible to ensure that space 38 between left front side frame and left side beam 16 is larger
According to Fig. 2).
As shown in figure 12, left impact absorbing member 21 is installed in left installing component 19.That is, left impact absorbing member 21 from
The lateral vehicle fronts of the leading section 13a of the left front side frame 13 and leading section 18c of connection member 18 are protruded (referring concurrently to Fig. 2).
Therefore, when occurring slight collision, front impact or biasing collision, each collision institute can be absorbed by impact absorbing member 21
The collision load F2 of application.Hereby it is possible to increase the uptake of the energy to colliding load F2.
In addition, so-called " front impact ", refers to that striking face covers the frontal collisions of the whole banner state of headstock.In addition, so-called " inclined
Put collision ", refer to the collision of the part (30~50% or so) before striking face covering vehicle.
Left impact absorbing member 21 has：The pedestal 94 of left installing component 19 is installed on from vehicle front side；It is installed on base
The 1st shock absorbing portion 95 on the inside of the overall width direction of seat 94；And the 2nd impact being installed on the outside of the overall width direction of pedestal 94 is inhaled
Receipts portion 96.
Pedestal 94 is installed on left installing component 19.1st shock absorbing portion 95 lateral vehicle front out of pedestal 94 overall width direction
It is prominent.Therefore, the 1st shock absorbing portion 95 is connected to the leading section 13a of left front side frame 13 by pedestal 94 and left installing component 19.
1st shock absorbing portion 95 is the light metal components that material is aluminium alloy etc., and extrusion forming is with along vehicle body front and back
The part extended to the mode with impartial cross sectional shape.Specifically, the 1st shock absorbing portion 95 has：1st periphery wall
98, it is formed as the closed cross-section of section in the form of a substantially rectangular；With the 1st partition wall 99, the inside of the 1st periphery wall 98 is divided into by it
Multiple zonules 101.1st partition wall 99 is formed as section in substantially cross (i.e.：It is latticed).
In other words, by the 1st periphery wall 98 and the 1st partition wall 99, the closed cross-section of the 1st shock absorbing portion 95 is by grid
It is divided into multiple zonules 101, i.e. be formed as the closed cross-section of so-called sphere of movements for the elephants shape shape.
The 2nd shock absorbing portion 96 is provided with engagement state on the outside of the overall width direction of the 1st shock absorbing portion 95.By the 1st
Add the 2nd shock absorbing portion 96 in shock absorbing portion 95, it is ensured that the section of left impact absorbing member 21 is larger.
Same with the 1st shock absorbing portion 95, the 2nd shock absorbing portion 96 is the light metal components that material is aluminium alloy etc., is squeezed
Molded is the part extended in the way of having impartial cross sectional shape along vehicle body fore-and-aft direction.Specifically, the 2nd impact is inhaled
Receipts portion 96 has：2nd periphery wall 103, it is formed as section in substantially U-shaped (Japanese katakana "U" font), and the 2nd point
Next door 104, the inside of the 2nd periphery wall 103 is divided into zonule 106 by it.2nd partition wall 104 is formed as section in generally " i "
Font.
The inner end 103a of 2nd periphery wall 103 is engaged in the outer end 98a of the 1st periphery wall 98.Under the engagement state, outside the 2nd
The inside of perisporium 103 is divided into inside and outside zonule 106 by the 2nd partition wall 104, and the closing for being formed as so-called " day " font is cut
Face.
So, add the 2nd shock absorbing portion 96 to ensure left impact absorbing member 21 in overall width in the 1st shock absorbing portion 95
Section on direction is larger.In addition, the 1st shock absorbing portion 95 is on the closed cross-section with multiple zonules 101, formed with
The closed cross-section that 2nd shock absorbing portion 96 has multiple zonules 106 compares the more zonules 101 of number.Hereby it is possible to sharp
It is shock loading when left front side frame 13 bears front impact with main car frame, so as to increase the uptake of impact energy.
Moreover, improving the intensity of left impact absorbing member 21 well.Accordingly, the left impact of shock loading F2 conquassation high intensity
Absorption piece 21, by increasing capacitance it is possible to increase the uptake of the left impact loading F2 of impact absorbing member 21 energy.
In addition, making the closed cross-section of the 1st shock absorbing portion 95 extend to vehicle body fore-and-aft direction.Similarly, the 2nd impact suction is made
The closed cross-section in receipts portion 96 extends to vehicle body fore-and-aft direction.Hereby it is possible to utilize aluminium alloy etc. for example with extrinsion pressing
Light metal components manufacture the 1st shock absorbing portion 95 and the 2nd shock absorbing portion 96, can simply manufacture left impact absorbing member
21。
As shown in fig. 7, in the leading section 21a and the leading section 21a of right impact absorbing member 21 of left impact absorbing member 21
(reference picture 1), which is set up, bumper 22.The left part of bumper 22 is installed on the leading section 21a of left impact absorbing member 21.
Specifically, bumper 22 has：Bumper body 111, its left part (end) 111a is installed on left shock absorbing portion
The leading section 21a of part 21；With end plate 112, the left part 111a of bumper body 111 is connected to the 2nd shock absorbing portion 96 by it
Outer wall 97.
Bumper body 111 has：Be formed as the bumper periphery wall 114 of the closed cross-section of section in the form of a substantially rectangular；With
The inside of bumper periphery wall 114 is divided into multiple bumper partition walls 115 of multiple zonules.Multiple bumper partition walls
115 keep the almost parallel configuration in compartment of terrain in the vertical direction.
The inside of bumper periphery wall 114 is divided into multiple zonules in the vertical direction by multiple bumper partition walls 115
117, be formed as the closed cross-section of so-called " mesh " font.Therefore, it is possible to improve the intensity of bumper body 111 well.
In addition, the left part 111a of bumper body 111 preceding surface is formed as skewed, bumper periphery wall is eliminated
114 antetheca 114a.Therefore, bumper body 111 left part 111a preceding surface or left end edge have opening.In bumper
The left part 111a of main body 111 preceding surface or left end edge are provided with end plate 112.
End plate 112 has hang plate 121, bending part 122.By hang plate 121 and bending part 122, end plate 112 is formed as overlooking
When be in substantially V-shaped.
Hang plate 121 is arranged at the left part 111a of bumper body 111 preceding surface or left end edge.Accordingly, bumper
The opening on the left part 111a of main body 111 preceding surface or the opening of left end edge are inclined by the occlusion of plate 121.
Moreover, bending part 122 is engaged in the outer wall 97 of the 2nd shock absorbing portion 96.That is, the left end of bumper body 111 is improved
Portion 111a intensity.The left part 111a of the bumper body 111 of high intensity is installed on the leading section of left impact absorbing member 21
21a。
Therefore, it is possible to rushing for the left part 111a by bumper body 111 is input to because occurring small area biasing and colliding
Load F2 is hit, is efficiently transfer to the leading section 21a's of left impact absorbing member 21 from the left part 111a of bumper body 111
Whole region.
Accordingly, the whole region of the left impact absorbing member 21 of shock loading F2 successfully conquassation transmitted, by increasing capacitance it is possible to increase liquidate
Hit the uptake of load F2 energy.
Fig. 3 is returned to, subframe 27 is installed on left front side frame 13 and forward right side frame 13 from below.Specifically, subframe 27
Leading section 27a be installed on the leading section 13a of left front side frame 13 and the leading section 13a of forward right side frame 13.
In addition, the rearward end 27b of subframe 27 is installed on the rearward end 13b of left front side frame 13 and the rearward end of forward right side frame 13
13b。
Rearward end 27b close to subframe 27 is provided with steering box 28.In addition, being set at the vehicle body rear of steering box 28
It is equipped with lower instrument board 15.
In this condition, when being applied with shock loading from vehicle front, shock loading F2 is transferred to before subframe 27
End 27a.The shock loading F2 transmitted makes the bending of subframe 27 be " paddy folding " shape in substantially V-shaped (being shown with imaginary line)
State.Therefore, upward power acts on the leading section 27a of subframe 27.
Here, the leading section 16a that the leading section 13a of left front side frame 13 is connected to left side beam 16 by connection member 18 is (same
When reference picture 2).Therefore, upward power acts on the leading section 16a of left side beam 16.
In this condition, left side beam 16 is that substantially zigzag (is shown with imaginary line by the 2nd bending section 47, the bending of the 1st bending section 46
Go out).Therefore, the elongated portion 16c between the 2nd bending section 47 and the 1st bending section 46 of left side beam 16 is deformed in the way of holding up.
Accordingly, by elongated portion 16c, make to lift power F3 and act on vehicle body front structure 10 (especially left front post 14).
Lower instrument board 15 is provided between left front post 14 and right front pillar 14.Therefore, act on left front post 14 lifts power
F3 is transferred to lower instrument board 15.Accordingly, when the bending of subframe 27 is substantially V-shaped, steering box 28 is moved to vehicle body rear
When, can move the lower section of the downward instrument board 15 of steering box 28.
By making steering box 28 move downwards, the deflection of left front side frame 13 or left side beam 16, energy can be substantially ensured that
Enough increase the uptake of impact loading F2 energy.
Then, reference picture 13, in the vehicle body front structure 10 of the present invention, by left side beam 16 and left front side frame 13 this two
Individual part, to being absorbed because occurring the shock loading F4 for the leading section 16a that small area biasing colliding and being input to left side beam 16
Example illustrate.
As shown in Figure 13 (a), collided because occurring small area biasing, there is shock loading F4 to be input to the leading section 16a of left side beam 16.
The leading section 16a of left side beam 16 shock loading F4 is input to, the 2nd bending section 47 and the 1st bending section 46 of left side beam 16 is sent out
Raw bending.
By making the 2nd bending section 47 and the 1st bending section 46 occur bending, the leading section 16a of left side beam 16 is as shown by arrow A
Moved to vehicle body rear.By the leading section 16a of left side beam 16 movement, the outer end 18a of connection member 18 is as shown by arrow A
Moved to vehicle body rear.
Therefore, the rearward end 18b of connection member 18 is as shown by arrow F to overall width direction medial movement.Accordingly, by connection member 18
Rearward end 18b, left front side frame 13 is deformed in the way of to the side bending of power unit 25.
As shown in Figure 13 (b), by making the 2nd bending section 47 and the 1st bending section 46 of left side beam 16 occur bending, left side beam
16 are deformed by bending in the way of substantially zigzag (with the state shown in imaginary line).
By making left side beam 16 be deformed into substantially zigzag, shock loading F4 can be absorbed using left side beam 16.
In addition, making left front side frame 13 be deformed in the way of to the horizontal bending in the side of power unit 25.By making front left side
Frame 13 deforms, and can absorb shock loading F4.
In such manner, it is possible to using left side beam 16 and the both parts of left front side frame 13, absorb defeated because occurring small area biasing collision
Enter the shock loading F4 to the leading section 16a of left side beam 16.Hereby it is possible to increase load is hit to what small area biasing collision was caused
The uptake of F4 energy.
(variation)
Reference picture 14, the variation of the frangible portion 64 to illustrating in embodiment is illustrated.
As shown in figure 14, the frangible portion 130 of variation is, in addition to the frangible portion 64 of embodiment, also forms the 3rd frangible portion 132, the
4 frangible portions 133 and the 5th frangible portion 134.
3rd frangible portion 132 is the opening for the component outer wall 53 for being formed at perisporium 51.4th frangible portion 133 is to be formed at perisporium 51
The opening of member upper 54.5th frangible portion 134 is the breach for being formed at upper flange 61.
According to frangible portion 130, the frangible portion 64 with embodiment is same, is starting point, hinge position 68 such as vacation with frangible portion 130
It is plastic hinge chain to think bending shown in line.
Hereby it is possible to suppress engagement of the stress concentration between the leading section 16a of left side beam 16 and the outer end 18a of connection member 18
Portion, can suppress leading section 16a and the outer end 18a of connection member 18 is peeled off.
In addition, the vehicle body front structure of the present invention is not limited to the above embodiments, appropriate change, improvement can be carried out
Deng.
For example, vehicle body front structure shown in the embodiment, the front side frame of left and right, the front pillar of left and right, lower instrument board, left and right
Curb girder, connection member, the installing component of left and right, the impact absorbing member of left and right, bumper, subframe, steering box, vehicle frame
Strengthening part, the upper component of left and right, lower bending section, frangible portion, accommodate recess, avoid recess, reinforcing member, connecting elements and the
1st, the shape or structure of the 2nd shock absorbing portion etc., is not limited to the shape or structure enumerated, can carry out appropriate change.
【Industrial applicability】
Present invention is preferably applicable on the outside of front side frame with being configured with curb girder and curb girder is connected to the vehicle body of front side frame
The automobile of front portion structure.
Description of reference numerals
10 vehicle body front structures
13 or so front side frame (front side frame)
The leading section of the left front side frames of 13a
14 or so front pillar (front pillar 14)
15 times instrument boards
16 or so curb girder (curb girder)
The leading section of 16a left side beams
18 connection members
The outer end of 18a connection members
The leading section of 18c connection members
19 or so installing component (installing component)
21 or so impact absorbing member (impact absorbing member)
The leading section of the left impact absorbing members of 21a
22 bumpers
27 subframes
The leading section of 27a subframes
The rearward end of 27b subframes
28 steering boxs
31 vehicle frame inwalls (inwall)
32 vehicle frame outer walls (outer wall)
33 vehicle frame tops (top)
36 vehicle frame strengthening parts
43 or so upper component (upper component)
Bending section under 44a
46 the 1st bending sections
47 the 2nd bending sections
The perisporium of 51 left side beams
55 member lowers (bottom)
The outside upper ridge line section (ridge line section) of 58 perisporiums
64th, 130 frangible portion
The frangible portions of 64a the 1st
The frangible portions of 64b the 2nd
65 accommodate recess
66 avoid recess
71a accommodates the corner of recess
74 reinforcing members
The front end of 74a reinforcing members
75 connecting elements
75a connections rear wall (rear wall of connection member)
76 strengthening parts
77 attachment
78 connections bottom (bottom)
81 reinforcing member inclined walls
Latter half of (rake) of 81a reinforcing member inclined walls
Ridge line section (ridge line section of reinforcing member) on 82 reinforcing members
84 outer edge beads
The upper ridge line section (ridge line section of connecting elements) of 86 connections
89 junction surfaces
The opening of 91 connection rear walls
95 the 1st shock absorbing portions
96 the 2nd shock absorbing portions
The outer wall (outer wall of impact absorbing member) of 97 the 2nd shock absorbing portions
101st, 106, more than 117 zonule
111 bumper bodies
The left part (end of bumper body) of 111a bumper bodies
112 end plates
132 the 3rd frangible portions
133 the 4th frangible portions
F1, F2, F4 shock loading.
Claims (12)
1. a kind of vehicle body front structure, has：
Front side frame, it extends to vehicle body fore-and-aft direction；
Front pillar (14), it is arranged on the outside of the overall width direction of the front side frame；
Curb girder, it extends from the front pillar (14) to vehicle front；With
Connection member, the leading section of the curb girder is connected to the leading section of the front side frame by it,
The vehicle body front structure is characterised by,
The curb girder is on the outside of the overall width direction of the front side frame and is configured as almost parallel with the front side frame, and has：
1st bending section and the 2nd bending section, both pull open interval along vehicle body fore-and-aft direction and set gradually from vehicle front；With
Frangible portion, it is formed between the 1st bending section and the 2nd bending section and by the 1st bending section,
The connection member has rake, and the rake is arranged at the rear wall of the connection member, to the front side frame and to
Vehicle body back sweep.
2. vehicle body front structure according to claim 1, it is characterised in that
The vehicle body front structure also has impact absorbing member, and the impact absorbing member is from the front side frame and the connecting portion
The lateral vehicle front in each leading section of part is protruded.
3. vehicle body front structure according to claim 1, it is characterised in that
The curb girder is formed the closed cross-section of hollow form by its perisporium,
The frangible portion is formed on the ridge line section of the perisporium, the perisporium,
The frangible portion is formed the shape selected from recess, convex portion, opening, breach,
The frangible portion is deformed by being input to the shock loading of the leading section of the curb girder, accordingly the frangible portion quilt
Bending is plastic hinge chain.
4. vehicle body front structure according to claim 1, it is characterised in that
The curb girder, which has, accommodates recess, and the receiving recess accommodates the outer end of the connection member in the leading section of the curb girder.
5. vehicle body front structure according to claim 1, it is characterised in that
The connection member has reinforcing member and connecting elements, wherein,
The reinforcing member is formed：The leading section of the front side frame is engaged in and with the rake, during top view
In general triangular, and section is in substantially U-shaped；
The connecting elements is formed：The leading section of the curb girder, and section are extended to from the reinforcing member along overall width direction
In substantially U-shaped.
6. vehicle body front structure according to claim 5, it is characterised in that
The connection member also has strengthening part, is continuously set by each ridge line section of the reinforcing member and the connecting elements
Put and the strengthening part covers continuous each ridge line section to strengthen each ridge line section.
7. vehicle body front structure according to claim 4, it is characterised in that
The curb girder has in the corner of the receiving recess avoids recess,
The connection member also has attachment, and the attachment connect the bottom of the curb girder and the connecting elements,
The attachment have bending section along around the avoidance recess and engaged.
8. vehicle body front structure according to claim 1, it is characterised in that
The front side frame is formed the closed cross-section of section in the form of a substantially rectangular by inwall, outer wall, upper and lower part,
The front side frame has vehicle frame strengthening part, and the vehicle frame strengthening part is configured in the inside of the front side frame, and in institute
State and the inwall, the top and the bottom are engaged in the length range of front side frame.
9. vehicle body front structure according to claim 5, it is characterised in that
The vehicle body front structure also have installing component, the installing component by impact absorbing member be installed on the front side frame and
Each leading section of the connection member,
The outer edge bead of the front end of the reinforcing member is engaged in the installing component,
The rear wall of the connecting elements is configured in the vehicle body rear at the junction surface of the outer edge bead and the installing component,
Opening is formed with the rear wall stood facing each other with the junction surface.
10. vehicle body front structure according to claim 2, it is characterised in that
The impact absorbing member has：
1st shock absorbing portion, its closed cross-section has multiple zonules, and the closed cross-section extends to vehicle body fore-and-aft direction；With
2nd shock absorbing portion, it is arranged on the outside of the overall width direction of the 1st shock absorbing portion, and its closed cross-section has many
Individual zonule, and the closed cross-section to vehicle body fore-and-aft direction extend.
11. vehicle body front structure according to claim 10, it is characterised in that
The vehicle body front structure also has bumper, and the bumper is installed on the leading section of the impact absorbing member,
The bumper has：
Bumper body, its end is installed in the leading section of the impact absorbing member, and is formed with multiple zonules
Closed cross-section, and the end is by opening；With
End plate, the opening of its inaccessible end, and it is connected to the outer wall of the impact absorbing member.
12. vehicle body front structure according to claim 1, it is characterised in that
The vehicle body front structure also has：
Subframe, it is installed in the front side frame from below；
Steering box, it is installed by the rearward end of the subframe；With
Lower instrument board, it is arranged at the vehicle body rear of the steering box,
The leading section of the subframe is installed in the leading section of the front side frame, and the subframe from vehicle front by inputting
Shock loading and be bent over as substantially V-shaped.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-205525 | 2015-10-19 | ||
| JP2015205525A JP6276237B2 (en) | 2015-10-19 | 2015-10-19 | Body front structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107031733A true CN107031733A (en) | 2017-08-11 |
| CN107031733B CN107031733B (en) | 2019-04-16 |
Family
ID=58665733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610836460.7A Active CN107031733B (en) | 2015-10-19 | 2016-09-21 | Vehicle body front structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6276237B2 (en) |
| CN (1) | CN107031733B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109421815A (en) * | 2017-08-23 | 2019-03-05 | 马自达汽车株式会社 | Body Structure |
| CN110203170A (en) * | 2018-02-28 | 2019-09-06 | 丰田自动车株式会社 | The connection of instrument board upper surface part and frost removal constructs |
| CN110588789A (en) * | 2018-06-12 | 2019-12-20 | 本田技研工业株式会社 | Vehicle body front structure |
| CN112061241A (en) * | 2019-06-11 | 2020-12-11 | 本田技研工业株式会社 | Vehicle body front structure |
| CN114435285A (en) * | 2020-11-02 | 2022-05-06 | 株式会社 F.泰克 | Vehicle subframe and method for absorbing collision energy thereof |
| CN114919665A (en) * | 2021-02-12 | 2022-08-19 | 本田技研工业株式会社 | Vehicle body rear structure |
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| JP7180293B2 (en) * | 2018-11-08 | 2022-11-30 | スズキ株式会社 | Body front structure |
| JP7253432B2 (en) * | 2019-04-17 | 2023-04-06 | 株式会社アイシン | Body front structure |
| JP7038095B2 (en) * | 2019-12-06 | 2022-03-17 | 本田技研工業株式会社 | Body front structure |
| KR102423091B1 (en) * | 2020-06-04 | 2022-07-20 | 주식회사 포스코 | Front body for vehicle |
| JP7238004B2 (en) * | 2021-03-17 | 2023-03-13 | 本田技研工業株式会社 | Body front structure |
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| CN110203170A (en) * | 2018-02-28 | 2019-09-06 | 丰田自动车株式会社 | The connection of instrument board upper surface part and frost removal constructs |
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| CN114435285A (en) * | 2020-11-02 | 2022-05-06 | 株式会社 F.泰克 | Vehicle subframe and method for absorbing collision energy thereof |
| CN114919665A (en) * | 2021-02-12 | 2022-08-19 | 本田技研工业株式会社 | Vehicle body rear structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017077746A (en) | 2017-04-27 |
| JP6276237B2 (en) | 2018-02-07 |
| CN107031733B (en) | 2019-04-16 |
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