CN104527810B

CN104527810B - Vehicle body front structure

Info

Publication number: CN104527810B
Application number: CN201410611764.4A
Authority: CN
Inventors: 古城裕纪
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2011-07-06
Filing date: 2012-06-12
Publication date: 2017-01-11
Anticipated expiration: 2032-06-12
Also published as: JP2013014293A; CN102862610A; JP5331849B2; CN104527810A; CN102862610B

Abstract

The invention provides a vehicle body front structure which can properly absorb input loads from the upper portion when an engine hood is powerfully closed. The vehicle body front structure is provided with the engine hood and lamp bodies, wherein the engine hood is composed of a hood outer shell sealing an engine chamber, and a hood framework arranged on the back face of the hood outer shell; and the lamp bodies are arranged on the left side and the right side of the position below the engine hood. The vehicle body front structure is characterized in that the hood framework is provided with a hood sealing piece for absorbing impact loads, a sealing piece mounting part for mounting of the hood sealing piece, and a sealing piece pushing and pressing part for carrying out conquassation on the hood sealing piece when loads are input in front of the sealing piece mounting part; each lamp body is provided with a sealing piece contact face which is located in the position opposite to the sealing piece pushing and pressing part when the engine hood is closed; and when the engine hood is in the closed state, the lower end of the hood sealing piece is spaced from the sealing piece contact faces.

Description

Vehicle body front structure

The application be filing date on June 12nd, 2012, Application No. 201210199263.0, The divisional application of the application for a patent for invention of invention entitled " vehicle body front structure ".

Technical field

The present invention relates to vehicle body front structure, in this vehicle body front structure, by hood shell And hood framework constitutes Engine Casing, extend downwards from the front lower surface of hood framework There is grille frame, grid before the front surface of grille frame is provided with.

Background technology

In vehicle body front structure, there is the hood reinforcement structure of the body forward structure being positioned at automobile. This technology is, hood is made up of outer panels and wainscot, at the central part of vehicle body, at inner face Reinforcing plate is installed in the leading section of plate, install engaged part in this reinforcing plate, from the outside plate Leading section extends the supporting faceplate of supporting hood integratedly, arranges and be positioned at car on supporting faceplate The central frame of body central part, the face side at supporting faceplate is installed grid, is made reinforcing plate edge The back side of central frame extends the most integratedly, connects in the way of top view cross section becomes box like Close extension and the central frame of reinforcing plate.

According to this vehicle body front structure, add owing to engaging in the way of becoming box like by top view cross section The extension of strong plate and central frame, thus it is possible to improve the intensity (example of the central part of hood As, with reference to patent documentation 1.).

It addition, in vehicle body front structure, have and install dissipating of radiator grid on hood Hot device grid installation structure.This technology is, at the central part back side of the upside of radiator grid Arranging buckle bracket, the back side at four angles around radiator grid is arranged towards rear Side arranges the bolt bracket of bolt, by the buckle bracket of radiator grid interim fixing State under be threadedly secured on four angles of hood front surface part.

According to this vehicle body front structure, due to by the buckle bracket of radiator grid temporarily It is threadedly secured under the state secured on four angles of hood front surface part, thus it is possible to Improve the installation of radiator grid (for example, referring to patent documentation 2.).

Also there are other vehicle body front structures installing radiator grid on hood.This technology For, radiator grid is made up of frame and grid portion, combines these frames and grid portion And form radiator grid, shape on the caulking part of the hood being made up of outer panels and wainscot Become installing hole, this installing hole runs through insertion bolt, and on bolt, screws togather nut and pacify Dress radiator grid.And, radiator grid extends to corresponding with the bottom in grid portion The bottom of frame and be formed with hollow bulb.

According to this vehicle body front structure, owing to being formed with hollow bulb in radiator grid, institute With, it is possible to increase the intensity of radiator grid is (for example, referring to patent documentation 3.).

On the other hand, in vehicle body front structure, also have in view of hood rubber (hood Sealing member) the modulated structure of the produced impact of friction.This technology is, upper at outer lens Surface element, and for hood rubber abut position on formed jut, to this jut Application is implemented at the position, front side compared, and has on the formation surface, rear side position compared with jut There is the lens step in minute asperities face.

According to this vehicle body front structure, such as, though hood rubber abut with lens step and Produce friction, it is also possible to maintain lens step itself blocks function (for example, referring to patent Document 4.).

It addition, in vehicle body front structure, have based on the front end being arranged on Engine Casing The sealing structure that the bonnet seal part in portion seals.This technology is, by Engine Casing with dissipate In gap sealed bonnet seal part between hot device grid, it is connected to Engine Casing with bullet From installing, the front end of base portion is forwards prominent to be formed with muscle portion and (covers muscle mode foremost Portion).

According to this vehicle body front structure, it is formed with muscle portion (covering muscle portion), institute due to prominent With, it is possible to make the gap between Engine Casing and radiator grid become inconspicuous (such as, With reference to patent documentation 5.).

Patent documentation 1: Japanese Unexamined Patent Publication 11-29070 publication

Patent documentation 2: Japanese Unexamined Patent Publication 7-304409 publication

Patent documentation 3: Japanese Unexamined Patent Publication 9-58384 publication

Patent documentation 4: Japanese Unexamined Patent Publication 7-85702 publication

Patent documentation 5: Japanese Unexamined Patent Publication 2006-21547 publication

In the vehicle body front structure of patent documentation 1, only carry out grid to by inner face in overall width central authorities The installation of the hood framework that the extension of plate and supporting faceplate are constituted, so, if grid is relatively Big vehicle, then cannot guarantee necessary intensity when hood is closed (especially when strength is closed) And the Compressive Strength of resistance to traveling wind, and, owing to hood locking portion is positioned at top, so, it is impossible to Guarantee impact stroke, it is more likely that cannot suitably protect pedestrian's (rushing of coming from above of absorption Hit load).

In the vehicle body front structure of patent documentation 2,3, especially as light-duty vehicle In vehicle that cannot guarantee engine compartment space etc., it is impossible to realize pedestrian by less space Protection (shock loading that absorption comes from above) and the raising of the blast of resistance to traveling.It addition, to The bolt that is installed as of hood framework is fixed, so, it is more likely that cannot suitably absorb from The shock loading of top.

Here, in the vehicle body front structure of patent documentation 4,5, due to from the appearance less than Bonnet seal part, and strength close time absorb below load input, it is possible to prevent because of When strength is closed, lamp body damages and causes rainwater immersion in lamp body, further, it is possible to prevent The dry deterioration caused because bonnet seal part is directly conducted heat by lamp body, and, it is possible to prevent The noise caused because sealing member contacts with lamp body and vibration.

So, in vehicle body front structure, by sealing between Engine Casing and lamp body In the case of, it is desirable to have a kind of structure can prevent rainwater from immersing further, be dried deterioration and Noise, vibration.

Summary of the invention

The problem of the present invention is to provide a kind of vehicle body front structure, especially such as light-duty vehicle In the vehicle in such space that cannot guarantee engine room etc., it is also possible to guarantee impact stroke And suitably absorb the shock loading come from above, it is possible to realize pedestrian by less space Protection (shock loading that absorption comes from above) and the raising of the blast of resistance to traveling.

It addition, the problem of the present invention also resides in a kind of vehicle body front structure of offer, will start In the case of sealing between machine hood and lamp body, it is possible to prevent rainwater from immersing further, be dried Deterioration, noise and vibration.

The vehicle body front structure of technical solution of the present invention 1, has: Engine Casing, by closing The hood framework at the hood shell of engine room and the back side that is located at hood shell is constituted；Grid Support, extends downwards from the front lower surface of hood framework；Front grid, is located at grid and props up The front surface of frame, it is characterised in that: grille frame has: support junction surface, is welded and fixed On hood framework and to the bending of vehicle body rear；Hood stopper section contact surface, in both sides The hood stopper section of portion's supporting engine hood abuts, hood framework with support junction surface phase The part of face-off is located behind compared with hood frame front end, and, with support junction surface phase The part hypsokinesis (being formed with tilting backwards) of face-off.

The vehicle body front structure of technical solution of the present invention 2, it is characterised in that: on grille frame, And between multiple support junction surfaces, there is incised notch portion.

The vehicle body front structure of technical solution of the present invention 3, it is characterised in that: grille frame is at machine The top of cover stopper section contact surface has support strengthening part, and this support strengthening part strides across machine Lower surface and the grille frame of cover framework and arrange, when support strengthening part is cross-section in The shape that U-shaped and upper and lower side open.

The vehicle body front structure of technical solution of the present invention 4, it is characterised in that: on grille frame, And in overall width central authorities, there is the door bolt eye that the hood sticking department with the top being located at dividing plate engages, door bolt Eye is made up of the annulus bracket of the annulus engaged with hood sticking department and supporting annulus, Annulus bracket strides across the lower surface of hood framework and grille frame and arranges, and annulus is arranged Lower section at grille frame.

The vehicle body front structure of technical solution of the present invention 5, it is characterised in that: at annulus bracket On, and it is provided with frangible portion near vehicle body above-below direction central authorities.

The vehicle body front structure of technical solution of the present invention 6, it is characterised in that: on grille frame It is provided with the temperature resistant encapsulation part installed along lower end.

The vehicle body front structure of technical solution of the present invention 7, has: Engine Casing, by closing The hood framework at the hood shell of engine room and the back side that is located at hood shell is constituted；Lamp body, It is located at the left and right of the lower section of Engine Casing, it is characterised in that: hood framework has: absorb The bonnet seal part of shock loading；The sealing member installation portion of fitting machine shield closure；From on The front of this sealing member installation portion of direction inputs the sealing of bonnet seal part conquassation when having load Part pressing portion, lamp body has sealing member contact surface, and this sealing member contact surface is at Engine Casing It is positioned on the position stood facing each other mutually with sealing member pressing portion, at Engine Casing under the state closed Under the state closed, make bonnet seal part lower end and sealing member contact surface interval.

The vehicle body front structure of technical solution of the present invention 8, it is characterised in that: bonnet seal part has There is the hollow bulb being formed as hollow cylindrical.

The vehicle body front structure of technical solution of the present invention 9, it is characterised in that: bonnet seal part Abut with sealing member pressing portion near the cardinal extremity of hollow bulb.

The vehicle body front structure of technical solution of the present invention 10, it is characterised in that: hood framework has Have: the grille frame extended downwards from front lower surface；It is located at the front surface of grille frame Front grid, bonnet seal part is positioned at the left and right of grille frame.

The vehicle body front structure of technical solution of the present invention 11, it is characterised in that: bonnet seal part Lower surface in the front of sealing member installation portion with hood framework abuts.

The vehicle body front structure of technical solution of the present invention 12, it is characterised in that: bonnet seal part In, when Engine Casing is closed, bonnet seal part lower end when side-looking with start Machine hood front end is compared above.

The effect of invention

The present invention can play following effect.

In the invention of technical scheme 1, vehicle body front structure has: Engine Casing, by sealing The hood framework at the hood shell closing engine room and the back side being located at hood shell is constituted；Lattice Grid support, extends downwards from the front lower surface of hood framework；Front grid, is located at grid The front surface of support.

Such as, have in the light-duty vehicle of relatively big front grid the most in design, if by front lattice The grille frame of grid and Zhi Chengqian grid is fixed on body side, then have load in the input from top Time, these parts as rigid body can absorb generation harmful effect to load, so, at car In body front portion structure, grille frame and front grid are located at the hood framework of Engine Casing Front lower surface.

Grille frame has: be weldingly fixed on hood framework and propping up to the bending of vehicle body rear Frame junction surface；Hood for abutting in the hood stopper section of both sides supporting engine hood stops Stopper contact surface, before the part stood facing each other mutually with support junction surface of hood framework and hood framework End is compared and is located behind, and, the part hypsokinesis stood facing each other mutually with support junction surface (retreats Tiltedly formed).

Such as, if grille frame being bolted on hood framework, then due to standing part Intensity too high can produce harmful effect, so carrying out spot-welded and making fixed position disperse Become multiple.

When load inputs, if the hood stopper section being located at the top of such as dividing plate is stopped with hood Stopper contact surface abuts, then can absorb load and produce harmful effect, so, make a bridge joint Conjunction portion bends to vehicle body rear, and makes the part stood facing each other mutually with support junction surface of hood framework It is located behind and hypsokinesis compared with hood frame front end, thereby, it is possible to make grille frame Side is mobile rearward above and makes the lower section of grille frame forwards slide (with hood stopper section Rotate for axial rearward direction near contact surface) thus avoid load, so will not hinder based on machine The load that cover shell and hood framework are carried out absorbs.

That is, support junction surface is carried out such as spot-welded and to make fixed position be dispersed into multiple, From without hindering the load carried out based on hood shell and hood framework to absorb, thus, especially It is in vehicle that cannot guarantee engine compartment space as light-duty vehicle etc., it is also possible to Guarantee impact stroke and suitably absorb the shock loading come from above.Its result is, it is possible to Pedestrian protecting (shock loading that absorption comes from above) and resistance to row is realized by less space The raising of sailing pressure.

In the invention of technical scheme 2, due on grille frame, and engage at multiple supports There is between portion incised notch portion, so, make lattice relative to the load input point in hood framework front Grid support floats and ensure that stroke, thus will not hinder when having load from top input and send out The deformation of motivation hood.Thus, when closing hood and can be preferably during pedestrian impact Absorb shock loading.

In the invention of technical scheme 3, grille frame has above the contact surface of hood stopper section The support rib installed in the way of having the lower surface to stride across hood framework and grille frame Part.

Support strengthening part is located at the part i.e. machine that load rises when top input has load The top of cover stopper section contact surface, making support strengthening part be configured to during cross-section is U word The shape that shape and upper and lower side open, thus it is possible to this part to be carried out the reinforcement of necessity, and And the intensity near the left and right end of grille frame can be adjusted from without load is absorbed generation Harmful effect.

In the invention of technical scheme 4, at grille frame, and have in overall width central authorities and be located at The door bolt eye of the hood sticking department engaging on the top of dividing plate.Door bolt eye is by engaging with hood sticking department The annulus bracket of annulus and supporting annulus is constituted, and annulus bracket is to stride across hood frame The lower surface of frame and the mode of grille frame are arranged, thereby, it is possible to annulus is arranged in lattice The lower section of grid support.That is, by annulus being arranged in the lower section of grille frame, it is possible to good The load come from above is absorbed well based on hood framework.Owing to striding across the following table of hood framework Face and grille frame, be able to ensure that the intensity of necessity, and can have for grille frame When hands pressing hood hood shell carried out load reinforcement reinforcement feature add powerful.

In the invention of technical scheme 5, on annulus bracket, and in vehicle body above-below direction Be provided with frangible portion near centre, so, except technical scheme 4 record effect in addition to, from Side's input can also make frangible portion bend when having load.Its result is, will not absorb load Produce harmful effect.

In the invention of technical scheme 6, grille frame is provided with along lower end install heat-resisting close Sealing, thus it is possible to radiator is heat insulation.In the vehicle body front structure of the present invention, by Lower section it is arranged in compared with normal conditions in hood sticking department, so, it is contemplated that hood opening and closing Time situation, the lower end along grille frame arranges temperature resistant encapsulation part so that hood sticking department is not High temperature can be become because of the heat of radiator.

In the invention of technical scheme 7, in vehicle body front structure, have: Engine Casing, By closing the hood shell of engine room and being located at the hood framework structure at the back side of hood shell Become；Lamp body, is located at the left and right of the lower section of Engine Casing.

Hood framework has: absorb the bonnet seal part of shock loading；Installation hood is close The sealing member installation portion of sealing；From on this sealing member installation portion of direction front input have load By the sealing member pressing portion of bonnet seal part conquassation during lotus.Lamp body has sealing member contact surface, This sealing member contact surface is positioned at when Engine Casing is closed and sealing member pressing portion phase Face-off position on, when Engine Casing is closed, make bonnet seal part lower end and Sealing member contact surface interval.

That is, owing to forming sealing member pressing portion on hood framework, in the upper surface shape of lamp body Become sealing member contact surface, and these parts are configured to almost parallel, thus it is possible to sandwich also The leading section (hollow bulb) of conquassation bonnet seal part, the energy when Engine Casing strength is closed Enough suitably absorb the input load come from above.

Thereby, it is possible to prevent because making front end be positioned at engine when Engine Casing strength is closed The rainwater that lamp body below cover damages and causes immersion in lamp body；And be prevented from because of machine The dry deterioration that shield closure is directly heated from lamp body and causes, additionally it is possible to prevent because hood is close Noise that sealing contacts with lamp body and causes and vibration.

In the invention of technical scheme 8, bonnet seal part is formed as hollow cylindrical owing to having Hollow bulb, so, sandwich easily by sealing member pressing portion and sealing member contact surface and press Burst, it is possible to play the action effect described in technical scheme 7 further.

In the invention of technical scheme 9, due near the cardinal extremity of the hollow bulb of bonnet seal part with Sealing member pressing portion abuts, thus it is possible to easily by sealing member pressing portion and sealing member Contact surface sandwiches and conquassation such that it is able to play technical scheme 7 and technical scheme 8 further Described action effect.

In the invention of technical scheme 10, owing to having on hood framework: from front following table The grille frame extended downwards；It is located at the front grid of the front surface of grille frame, and machine Shield closure is positioned at the left and right of grille frame, so, it is not necessary to bonnet seal part is located at and sends out On whole of motivation hood front end, it is possible to setting position, size and scope as required.

In the invention of technical scheme 11, owing to bonnet seal part is before sealing member installation portion Side abuts with the lower surface of hood framework, thus it is possible to fixed on the top of bonnet seal part On sealing member installation portion, its front is always pushed upward along hood frame lower surface, So bonnet seal part will have load and vibration etc. to offset because inputting from top, Desired sealing property can be played.

In the invention of technical scheme 12, about bonnet seal part, close at Engine Casing State under, bonnet seal part lower end is positioned at compared with Engine Casing front end when side-looking Side, so, even if there is gap between bonnet seal part and lamp body upper surface, starting Also it is difficult to see that bonnet seal part under the state that machine hood is closed from vehicle front, thus improves Aesthetic appearance.

Accompanying drawing explanation

Fig. 1 is the anterior solid of the vehicle body representing the vehicle body front structure that have employed the present invention Figure.

Fig. 2 is observing from dorsal view of the Engine Casing of the vehicle body front structure shown in Fig. 1 Axonometric chart.

Fig. 3 is hood framework and the solid of grille frame of the vehicle body front structure shown in Fig. 2 Figure.

Fig. 4 is the 4-4 line sectional view of Fig. 1.

Fig. 5 is 5 enlarged drawings of Fig. 4.

Fig. 6 is 6 enlarged drawings of Fig. 4.

Fig. 7 is the axonometric chart of the grille frame of the vehicle body front structure shown in Fig. 2.

Fig. 8 is the 8-8 line sectional view of Fig. 7.

Fig. 9 is 9 enlarged drawings of Fig. 2.

Figure 10 is 10 enlarged drawings of Fig. 2.

Figure 11 is the 11-11 line sectional view of Fig. 1.

Figure 12 is the axonometric chart of the lamp body of the vehicle body front structure shown in Fig. 1.

Figure 13 is 13 enlarged drawings of Fig. 2.

Figure 14 is to represent that the hood of the Engine Casing by the vehicle body front structure shown in Fig. 1 is close The axonometric chart of the state that sealing has been pulled down.

Figure 15 be represent the vehicle body front structure shown in Fig. 2 bonnet seal part from oblique upper The axonometric chart observed.

Figure 16 is the action specification during hood strength closedown of the vehicle body front structure shown in Fig. 1 Figure.

Figure 17 be represent the vehicle body front structure shown in Fig. 1 top crash analysis result point Analysis figure.

The explanation of reference

11... vehicle body, 13... engine room, 15... hood shell, 16... hood framework, 17... Engine Casing, 17a... Engine Casing front end, 18... grille frame, 18a... grid props up The lower end of frame, grid before 19..., 21... lamp body, 24... dividing plate, 26... hood stopper section, 27... hood sticking department, 32... fastens eye with a bolt or latch, 33... support strengthening part, 34... bonnet seal part, 34a... bonnet seal part lower end, 38... sealing member pressing portion, 44... is relative with support junction surface The part (engaging face-off portion) stood erect, 45a～45e... support junction surface, 46a～46d... incised notch Portion, 47... hood stopper section contact surface, 51... temperature resistant encapsulation part, 56... annulus, 57... Annulus bracket, 68... frangible portion, 71... sealing member contact surface, 76... hollow bulb, 76a... Cardinal extremity.

Detailed description of the invention

Hereinafter, based on accompanying drawing, embodiments of the present invention are described.Additionally, accompanying drawing is with accompanying drawing mark Note towards observing.

Embodiment

As shown in Figure 1 to 4, vehicle 10 has in the front portion of vehicle body 11: by closing electromotor What the hood framework 16 at the hood shell 15 of room 13 and the back side that is located at hood shell 15 was constituted sends out Motivation hood 17；The grille frame 18 extended downwards from the front lower surface of hood framework 16； It is located at the front grid 19 of the front surface of grille frame 18；The lower section of Engine Casing 17 and The lamp body 21,21 that the left and right of front grid 19 is arranged；It is located at front grid 19 and lamp body 21,21 The front bumper outward appearance portion 22 of lower section；Cover in the side of lamp body 21 and front bumper outward appearance portion 22 The front fender 23 of lid vehicle body side；It is located at grille frame 18 and front bumper outward appearance portion 22 The dividing plate 24 (with reference to Fig. 4) at rear.

Additionally, Fig. 4 is the 4-4 line sectional view of Fig. 1, and eliminate front grid 19.

Front grid (grid) 19 is the appearance part of the front surface being located at grille frame 18, and And the introducing port of traveling wind is still imported to engine room 13.

Dividing plate (front dividing plate) 24 is provided with on top: the supporting engine hood when hood is closed The hood stopper section 26,26 (side is not shown) of the left and right of 17；Engine Casing 17 is blocked Fixed hood sticking department 27.And, dividing plate 24 supporting is for cooling down the radiator 25 of electromotor.

Additionally, hood stopper section 26 is set in foreign side from overall width central authorities with about 300mm.

As shown in Figures 1 and 2, vehicle body front structure is by Engine Casing 17, grille frame 18, the lamp body 21,21 of front grid 19 and left and right constitute, knot around Engine Casing 17 Structure.The hood framework 16 of Engine Casing 17 is not bolted but passes through spot welding Welding grille frame 18, it is possible to the body forward structure knot realizing being conducive to pedestrian protecting performance Structure (hood structure).

It addition, in vehicle body front structure, as in figure 2 it is shown, will be arranged in terms of vehicle front Less than position on bonnet seal part (bonnet seal part rubber) 34 be arranged in hood framework The left and right of 16 front ends (Engine Casing front end 17a) such that it is able to simultaneously realize hood strength Absorb input load during closedown and improve aesthetic appearance.

Engine Casing assembly 31 includes: the hood shell 15 closed by engine room 13； It is located at the hood framework 16 at the back side of hood shell 15；From the front lower surface of hood framework 16 The grille frame 18 extended downwards；It is located at the front grid (lattice of the front surface of grille frame 18 Grid) 19；The door bolt eye 32 striding across the lower surface of hood framework 16 and grille frame 18 and arrange； The support rib of the left and right striding across the lower surface of hood framework 16 and grille frame 18 and arrange Part (grille frame rib) 33,33；Be located at hood framework 16 front end left and right and for Absorb the bonnet seal part 34,34 of shock loading.

Additionally, the support strengthening part 33,33 of left and right is symmetrical parts.

Engine Casing assembly 31 has special shape and has in the lower section of hood framework 16 The front grid 19 being usually located at body side and the grille frame 18 at the back side being positioned at front grid 19.

Engine Casing 17 is by closing the hood shell 15 of engine room 13 and being located at hood shell The hood framework 16 at the back side of 15 is constituted.

As shown in Fig. 3～Fig. 7, hood framework 16 is by the cold rolling material (JSC270D of thickness of slab 0.5t Steel) formed.And, hood framework 16 has: the hood frame engaged with grille frame 18 Frame side engagement portion 36；It is located at the front, left and right of hood framework 16 and fitting machine shield closure 34 Sealing member installation portion 37,37 (referring also to Figure 14)；When the load come from above is input to close The sealing member pressing portion 38 of conquassation bonnet seal part 34 during the front of sealing installation portion 37；Hands is pressed During press cover, hood shell 15 is carried out the reinforcement feature (reinforcement) 39 of load reinforcement.

Sealing member installation portion 37 (with reference to Figure 14) is provided with bonnet seal part 34 is blocked Multiple block button hole 37a that button is fixing.

Additionally, hood framework 16 can also have: from front lower surface (vehicle front following table Face) grille frame 18 that extends downwards；It is located at the front grid of the front surface of grille frame 18 19。

In hood framework 16 (hood framework side engagement portion 36), with support junction surface 45a～45e Part (the engaging face-off portion) 44 that (with reference to Fig. 7) stands facing each other mutually is compared with hood framework 16 front end It is located behind, and, the part stood facing each other with support junction surface 45a～45e phase (engages face-off Portion 44) hypsokinesis (being formed as tilting backwards).

That is, hood framework side engagement portion 36 from hood framework 16 front end towards rear ground fetch bit, And by making self also hypsokinesis of hood framework side engagement portion 36, it is possible to easily carry out grid and prop up The rotation of frame 18, it can be ensured that become the flat of bearing plane when input has the load come from above Face part, further, it is possible to grid (grid) 19 before the front surface of grille frame 18 guarantees Installing space.

Reinforcement feature 39 has the foreleg junction surface 41 being bonded on hood framework 16 and back leg connects Conjunction portion 42.

Grille frame 18 (with reference to Fig. 1, Fig. 2) be positioned at hood framework 16 and lamp body 21,21 it Between, and, it is the parts that extend downwards of the front lower surface from hood framework 16.By plate The cold rolling material (JSC270D steel) of thick 0.8t is formed.

Grille frame 18 is formed: be weldingly fixed on hood framework 16 and to vehicle body rear Multiple support junction surface 45a～45e of bending；It is located between multiple support junction surface 45a～45e Incised notch portion 46a～46d；For in the hood stopper section 26 of both sides supporting engine hood 17 The hood stopper section contact surface 47 abutted；Make entering of the left and right that exogenous QI flows into engine room 13 QI KOU portion 48,48；The central authorities formed in the way of being clamped by the air inlet oral area 48,48 of left and right Rib 49.

Additionally, hood stopper section 26 is formed at the top (with reference to Fig. 4) of dividing plate 24.

And, grille frame 18 is provided with: it is resistance to that the lower end 18a along grille frame 18 installs Heat seal 51；To stride across hood framework 16 times above hood stopper section contact surface 47 The support strengthening part 33,33 of the left and right that the mode of surface and grille frame 18 is arranged；It is located at The overall width central authorities of grille frame 18, the hood sticking department 27 on the top for being located at dividing plate 24 engage Door bolt eye 32.

Multiple support junction surface 45a～45e are bonded on hood frame by the spot-welded at eight The lower surface of frame 16.If fixing this is because carry out bolt, the too high meeting of intensity makes to come from above Load absorption deteriorate.

Owing to making support junction surface 45a～45e hypsokinesis (tilting backwards), so defeated from top When entering load, grille frame 18 self rotates such that it is able to realizes suitable load and absorbs.

Incised notch portion 46a～46d is to the shock loading come from above not applied harmful effect And the part made, by by the portion beyond support junction surface 45a～45e of grille frame 18 Cut and lack and formed.That is, become the shape floated from hood framework 16, thus, allow machine The deformation of cover framework 16, and it is able to ensure that the stroke from load input point.

Hood stopper section contact surface 47, supports whole hood when hood is closed by dividing plate 24 (Engine Casing assembly 31), and become rearward when having load from top input The central shaft rotated.Hood stopper section contact surface 47 is formed as level or somewhat hypsokinesis is (somewhat Tilt backwards).

Air inlet oral area 48 has been carried out conquassation processing (punch process), and air inlet on top The end in portion 48 is reinforced and is using in the operation fixture of carrying is fixing.That is, enter QI KOU portion 48 has for making the traveling wind from front contact with radiator 25 (with reference to Fig. 4) Air inlet function, and have and make grille frame 18 lightweight and operation fixture insert The effect in hole.

Be formed as hat shape during central authorities' rib 49 cross-section, thus improve relative to grid The intensity of the deadweight of support 18, relative to the intensity travelling blast and relatively from front The intensity of the load acted on when opening and closing hood.

As shown in Figures 7 and 8, temperature resistant encapsulation part (encapsulant) 51 uses the PP of thickness of slab 2t (polypropylene) expanded material.It is arranged to what Engine Casing 17 will not be supported by dividing plate 24 Radiator 25 (with reference to Fig. 4) conducts heat and the heating when hood is opened.And, temperature resistant encapsulation part The top of 51 is fixed, the most all the time along the lower end 18a of grille frame 18 by multiple buckles 54 Can support with being pushed.Thus, will not offset because of load input and vibration, The operator that Engine Casing 17 is carried out opening and closing can be protected.

During as it is shown in figure 9, support strengthening part (grille frame rib) 33 is cross-section In U-shaped and the open shape of upper and lower side.And, use the cold rolling material of thickness of slab 0.75t (JSC270C steel), the load that the thickness of slab of midway is come from above by absorption and necessary intensity Balance result determine.

The top of support strengthening part 33 at two spot-welded on hood framework 16, support The lower section of strengthening part 33 at three spot-welded on grille frame 18, support strengthening part 33 are located at the part i.e. hood stopper section 26 (ginseng that load rises when top input has load According to Fig. 4) top.Need to meet simultaneously carry out necessity reinforcement and will not be to coming from above Load absorbs and produces harmful effect, adjusts by thickness of slab, shape and welding are got ready position Whole, it is possible to obtain this balance.

In support strengthening part 33, pad (weld flange) 58a, 58b of top with Grille frame 18 (support junction surface 45a～45e) similarly hypsokinesis.The pad of lower section (weld flange) 59a～59c especially because interior side top weld locations (pad 59c, With reference to Fig. 9) and achieve and absorb the load come from above and the balance of necessary intensity.

Distinguish between pad 58a, 58b up and between pad 59a, 59b of lower section It is provided with gap S1, S2.That is, between the top of support strengthening part 33 and hood framework 16 It is formed with gap S1, is formed between the bottom of support strengthening part 33 and grille frame 18 Gap S2.

It addition, support strengthening part 33 is formed as big from hood framework 16 towards grille frame 18 It is slim hat shape when cause style of opening and cross-section.Thus, improve relative to grille frame 18 deadweight intensity, relative to from front travel blast intensity and relative to opening The intensity of the load acted on during hood.It is additionally, since that to be formed as upper and lower side open and slim Hat shape, absorbs the load come from above and the balance of necessary intensity it is possible to obtain.

As shown in Figure 10, door bolt eye 32 by the annulus 56 engaged with hood sticking department 27 and props up The annulus bracket 57 holding annulus 56 is constituted, and annulus bracket 57 uses that thickness of slab 1.2t's is cold rolling Material (JSC270C45-45 steel), and stride across the lower surface of hood framework 16 and grid props up Frame 18 and install.

Annulus 56 is arranged on the lower section of grille frame 18.Annulus bracket 57 is gone back when side is cutd open It is able to observe that cross section is in substantially S shape.

Annulus bracket 57 has: the upper bond portion 61 being bonded on hood framework 16；Connect The lower engagement portion 62 being combined on grille frame 18；It is located near vehicle body above-below direction central authorities Peristome 63；Achieved by punch process left pressing part 64a that intensity and rigidity improve, Right pressing part 64b and central authorities pressing part 64c；It is located at the left and right of peristome 63 and forwards highlights Muscle portion 65,65；The reinforcement lower limb 66 extended to hood framework 16 from peristome 63；It is provided with The bracket stage portion 67 of one end 56a of annulus 56.Additionally, the other end 56b of annulus 56 It is arranged on grille frame 18 side of lower engagement portion 62.

In detail, one end 56a of annulus 56 is sandwiched in bracket stage portion 67, and by MIG Being welded in bracket stage portion 67, the other end 56b of annulus 56 is sandwiched into lower engagement portion 62 In, and be welded on lower engagement portion 62 by MIG.

Upper bond portion 61 everywhere by spot-welded on hood framework 16, prop up with grid Frame 18 (support junction surface 45a～45e) similarly hypsokinesis.Upper bond portion 61 and reinforcing The back leg junction surface 42 of parts 39 is bonded on same position (with reference to Fig. 4, Fig. 6), also plays The effect strengthened is carried out when having load from top input.Lower engagement portion 62 spot welding at three It is welded on grille frame 18.

Left and right and central pressing part 64a, 64b, 64c have load relative in the input from top Time and act on the load of annulus bracket 57 when strength is closed and improve intensity.

Muscle portion 65 bends when having load from top input thus suitably promotes that load absorbs.

It is assembled on hood framework 16 and by the machine of band grille frame 18 at grille frame 18 When cover framework 16 takes out of, reinforcement lower limb 66 is prevented from grille frame 18 and crooked or skew occurs.

Frangible portion 68 is located near vehicle body above-below direction central authorities, by peristome 63 and muscle portion 65, 65 are constituted.Frangible portion 68 has to be made annulus bracket 57 lightweight and suitably absorbs from upper The function of the load input of side.

As shown in Figure 11～Figure 15, lamp body 21 has sealing member contact surface 71, and this sealing member connects Contacting surface 71 is positioned at when Engine Casing 17 is closed and stands facing each other with sealing member pressing portion 38 phase Position on.Sealing member contact surface 71 is close with hood when Engine Casing 17 is closed Sealing lower end 34a interval.

Bonnet seal part 34 is in the left and right of grille frame 18 and is arranged on hood framework 16 Sealing member installation portion 37 on parts.And, bonnet seal part 34 has: be installed in Attached portion 74 on sealing member installation portion 37；One extended continuously from this attached portion 74 As 75；Extend from this general portion 75 and be formed as the hollow bulb 76 of hollow cylindrical.And, Bonnet seal part 34 uses PP (polypropylene) expanded material.

Attached portion 74 is provided with the multiple through hole 74a run through for buckle 77, and by multiple cards Detain 77 and be fixed on the sealing member installation portion 37 of hood framework 16.Additionally, at sealing member Installation portion 37 is provided with the multiple block button hole 37as locking for buckle 77.

Front end drops and hollow is formed as during hollow bulb 76 cross-section.Bonnet seal part 34 Hollow bulb 76 cardinal extremity 76a near abut with sealing member pressing portion 38.

That is, owing to pushing with sealing member near the cardinal extremity 76a of the hollow bulb 76 of bonnet seal part 34 Portion 38 abuts, it is possible to sandwiched also by sealing member pressing portion 38 and sealing member contact surface 71 Conquassation hollow bulb (drops portion) 76, thus can suitably absorb when strength is closed From the load of top.

As shown in figure 11, bonnet seal part front end 34b is positioned at Engine Casing front end with size S3 The rear of 17a.And, bonnet seal part 34 is at the front of sealing member installation portion 37 and hood frame The lower surface of frame 16 abuts, and, when Engine Casing 17 is closed, hood is close Sealing lower end 34a is positioned at size S4 compared with the 17a of Engine Casing front end when side-looking Side.

Thus, even if having gap S5 between the upper surface of bonnet seal part 34 and lamp body 21, Also it is difficult to from vehicle front see bonnet seal part 34, thus improves aesthetic appearance.

Figure 16 (a), (b) show vehicle body front structure hood strength close time Action specification figure.

As shown in Figure 16 (a), in vehicle body front structure, hood framework 16 is formed Sealing member pressing portion 38, the upper surface at lamp body 21 is formed with sealing member contact surface 71, and machine Shield closure 34 is configured to these sealing member pressing portion 38 and sealing member contact surface 71 substantially Parallel.

As shown in Figure 16 (b), as Engine Casing 17 is by with arrow a1, big load is entered In the case of row closing motion, it is possible to by sealing member pressing portion 38 and sealing member contact surface 71 Sandwich and the hollow bulb (drops portion) 76 of conquassation bonnet seal part 34, thus close in strength The load come from above can be suitably absorbed when closing.

Owing to the attached portion 74 (with reference to Figure 13) on the top of bonnet seal part 34 is fixed, So, bonnet seal part 34, always along the lower surface of hood framework 16, will not carry because pushing The input of lotus and vibration etc. and offset upward, it is possible to the sealing property contemplated by performance.

Due to bonnet seal part 34 and lamp body 21 sealing member contact surface (upper surface) 71 it Between be provided with gap S5 (with reference to Figure 11), so, even if closing shield closure on opportunity at hood 34 also will not abut with lamp body 21.Thereby, it is possible to prevent because of damage lamp body 21 when strength is closed And the rainwater caused immersion in lamp body 21, be directly subject to from lamp body 21 because of bonnet seal part 34 Heat and the dry deterioration that causes and cause because bonnet seal part 34 contacts with lamp body 21 Noise and vibration.

Figure 17 (a)～(d) show from overall width mediad foreign side about 300mm (big Cause the cross section of position, hood stopper section 26) the top crash analysis result at place.Additionally, t Unit is the second.

Figure 17 (a) shows the vehicle body 11 (t=0) of A-stage.

Test ball 79 is made to be connected to Engine Casing 17 as arrow b1.

Figure 17 (b) shows the state of the vehicle body after t=5 11.During t=5, outside hood Shell 15 abuts with hood framework 16, hood framework 16 as shown in arrow b2 substantially in parallel It is pushed, absorbs input load by hood framework 16 front end.The top quilt of grille frame 18 Rearward push, grille frame 18 with hood stopper section 26 as axle as shown in arrow b3 Start to rotate.

Figure 17 (c) shows the state of the vehicle body after t=8 11.During t=8, grid props up The side rearward above of frame 18 rotates, and thus, grille frame 18 is from hood stopper section 26 such as arrow Forwards slide (owing to the annulus 56 shown in Fig. 4 is in locked shape as shown in b4 State, so only forwards moving with the amount of annulus 56 anterior-posterior length).Due to front grid 19 Entirety is forwards pushed, so, load will not be absorbed and produce harmful effect.

Figure 17 (d) shows the state of the vehicle body after t=15 11.Front grid 19 such as arrow As shown in head b5, slide in side further along, thus further promotes load and absorbs.

As shown in Fig. 1～Fig. 7, in vehicle body front structure, have: Engine Casing 17, By closing the hood shell 15 of engine room 13 and being located at the hood frame at the back side of hood shell 15 Frame 16 is constituted；Grille frame 18, extends downwards from the front lower surface of hood framework 16； Front grid 19, is located at the front surface of grille frame 18.

Such as, have in the light-duty vehicle of relatively big front grid the most in design, if by front The grille frame of grid and Zhi Chengqian grid is fixed on body side, then when from top, input has load During lotus, produce harmful effect owing to load can be absorbed as these parts of rigid body, so, In vehicle body front structure, grille frame 18 and front grid 19 are located at Engine Casing 17 The front lower surface of hood framework 16.

Grille frame 18 has: be weldingly fixed on hood framework 16 and after vehicle body Support junction surface 45a～45e of side's bending；For the machine at both sides supporting engine hood 17 Cover stopper section 26 abut hood stopper section contact surface, hood framework 16 with support junction surface Part (engaging face-off portion) 44 position compared with hood framework 16 front end that 45a～45e phase stands facing each other In rear, and the part (engaging face-off portion) stood facing each other with support junction surface 45a～45e phase 44 hypsokinesis.

Such as, if grille frame 18 is bolted on hood framework 16, then due to fixing The intensity of part is too high can produce harmful effect, so, carry out spot-welded and make fixed bit Put be dispersed into multiple.

If the hood stopper section 26 on the top being located at such as dividing plate 24 during load input is connected to machine On cover stopper section contact surface 47, then load can be absorbed and produce harmful effect, so, make to prop up Frame junction surface 45a～45e to the bending of vehicle body rear, and make hood framework 16 with a bridge joint Part (engaging face-off portion) 44 and the hood framework 16 front end phase that conjunction portion 45a～45e phase stand facing each other Ratio is located behind and hypsokinesis (tilting backwards), thus, can make grid when load inputs The side rearward above of support 18 mobile and make the lower section of grille frame 18 forwards slide (with Rotate for axial rearward direction near hood stopper section contact surface 47) thus avoid load, Bu Huifang Load based on hood shell 15 and hood framework 16 is hindered to absorb.

That is, owing to support junction surface 45a～45e is carried out such as spot-welded so that fixed bit Put and be dispersed into many places, and make support junction surface 45a～45e will not hinder based on hood shell 15 And the load that hood framework 16 is carried out absorbs, so, especially in nothing as light-duty vehicle Method guarantees in the vehicle in the space of engine room 13 etc., it is also possible to guarantee impact stroke suitably Ground absorbs the shock loading come from above.Its result is, it is possible to realized by less space Pedestrian protecting (shock loading that absorption comes from above) and the raising of the blast of resistance to traveling.

As it is shown in fig. 7, in vehicle body front structure, on grille frame 18 and at multiple supports There is between 45a～45e of junction surface incised notch portion 46a～46d, so, make grille frame 18 relative Load input point in the front of hood framework 16 floats so that it is guaranteed that stroke, defeated from top The deformation of Engine Casing 17 (with reference to Fig. 4) will not be hindered when entering to have load.Thereby, it is possible to Preferably absorb shock loading when hood is closed and during pedestrian impact.

As shown in Fig. 4 and Fig. 9, in vehicle body front structure, grille frame 18 is in hood backstop The top of portion's contact surface 47 is in the way of the lower surface striding across hood framework 16 and grille frame 18 It is provided with support strengthening part 33.

Owing to support strengthening part 33 is located at the portion that load rises when top input has load Divide the top of i.e. hood stopper section contact surface 47, and support strengthening part 33 is configured to cross section It is U-shaped and upper and lower side open shape during observation, thus it is possible to carry out this part must The reinforcement wanted, and can adjust intensity near the left and right end of grille frame 18 from without Load is absorbed and produces harmful effect.

As shown in Fig. 4, Fig. 6 and Figure 10, in vehicle body front structure, on grille frame 18, And in overall width central authorities, there is the door bolt eye that the hood sticking department 27 with the top being located at dividing plate 24 engages 32.Door bolt eye 32 includes: the annulus 56 engaged with hood sticking department 27；Supporting annulus 56 Annulus bracket 57, annulus bracket 57 is to stride across lower surface and the grid of hood framework 16 The mode of support 18 is arranged, thereby, it is possible to annulus 56 is arranged in grille frame 18 times Side.That is, by annulus 56 being arranged in the lower section of grille frame 18, it is possible to lead to well Cross hood framework 16 and absorb the load come from above.Owing to annulus bracket 57 strides across hood frame The lower surface of frame 16 and grille frame 18, it is possible to guarantee the strong of necessity to grille frame 18 Degree, and, additionally it is possible to have, when hands pressing hood, hood shell 15 is carried out load reinforcement Reinforcement feature 39 add powerful.

As shown in Figure 10, in vehicle body front structure, due on annulus bracket 57 and Being provided with frangible portion 68 near vehicle body above-below direction central authorities, recording so not only having technical scheme 4 Effect, and from top input have load time frangible portion 68 can also be made to bend.Its knot Fruit is, will not absorb load and produce harmful effect.

As shown in Figures 7 and 8, in vehicle body front structure, grille frame 18 is provided with edge The temperature resistant encapsulation part 51 that lower end 18a installs, thus it is possible to by heat insulation for radiator 25.At this In bright vehicle body front structure, hood sticking department 27 is arranged in lower section compared with generally, so, In view of situation during hood opening and closing, the lower end 18a along grille frame 18 arranges temperature resistant encapsulation Part 51, thus hood sticking department 27 will not become high temperature because of the heat of radiator 25.

As shown in Fig. 1 and Figure 11, in vehicle body front structure, have: Engine Casing 17, By closing the hood shell 15 of engine room 13 and being located at the hood frame at the back side of hood shell 15 Frame 16 is constituted；Lamp body 21,21, is arranged on the left and right below Engine Casing 17.

Hood framework 16 has: absorb the bonnet seal part 34 of shock loading；Fitting machine The sealing member installation portion 37 of shield closure 34；From on the front of direction sealing member installation portion 37 The sealing member pressing portion 38 of conquassation bonnet seal part 34 when input has load.Lamp body 21 has There is sealing member contact surface 71, the state that this sealing member contact surface 71 is closed at Engine Casing 17 Under be positioned at sealing member pressing portion 38 phase face-off position on, Engine Casing 17 close Bonnet seal part lower end 34a and sealing member contact surface 71 interval is made under state.

That is, hood framework 16 forms sealing member pressing portion 38, at the upper surface of lamp body 21 Forming sealing member contact surface 71, these parts are configured to almost parallel, thereby, it is possible to sandwich And conquassation hollow bulb (drops portion) 76, thus the energy when Engine Casing 17 strength is closed Enough suitably absorb the input load come from above.

Thus, it is prevented from because front end is pointed to start when Engine Casing 17 strength is closed The lamp body 21 of the lower section of machine hood 17 causes the rainwater damaged and produce leaching in lamp body 21 Enter, it is possible to prevent the dry deterioration caused because bonnet seal part 34 is directly conducted heat by lamp body 21, Noise and the vibration produced because bonnet seal part 34 contacts can also be prevented with lamp body 21.

As shown in figure 11, in vehicle body front structure, during bonnet seal part 34 has and is formed as The hollow bulb 76 of hollow cylinder shape, so, connect easily by sealing member pressing portion 38 and sealing member Contacting surface 71 sandwiches and conquassation, it is possible to plays further and prevents rainwater immersion, dry deterioration, make an uproar Sound and the effect of vibration.

As shown in figure 11, in vehicle body front structure, the hollow bulb 76 of bonnet seal part 34 Abut with sealing member pressing portion 38 near cardinal extremity 76a, so, by sealing member pressing portion 38 He Sealing member contact surface 71 sandwiches, it is easier to conquassation, it is possible to play further prevent rainwater from immersing, It is dried deterioration, noise and the effect of vibration.

As shown in Fig. 2 and Figure 11, in vehicle body front structure, hood framework 16 is provided with: The grille frame 18 extended downwards from front lower surface, the front surface being located at grille frame 18 Front grid 19, owing to bonnet seal part 34 is positioned at the left and right of grille frame 18, so, no Need to be arranged on by bonnet seal part 34 on whole of Engine Casing front end 17a, it is possible to according to Need setting position, size and scope.

As shown in figure 11, in vehicle body front structure, owing to bonnet seal part 34 is at sealing member The front of installation portion 37 is connected to the lower surface of hood framework 16, thus it is possible to hood is close The top of sealing 34 is fixed on sealing member installation portion 37, though the front of bonnet seal part 34 Lower surface along hood framework 16 is always pushed upward, so, bonnet seal part 34 is not Can be because from top, input has load and vibration etc. to offset, it is possible to desired by performance Sealing property.

As shown in figure 11, in vehicle body front structure, about bonnet seal part 34, starting On the downside of the state that machine hood 17 is closed before apparent time bonnet seal part lower end 34a and Engine Casing End 17a compares above, so, even if bonnet seal part 34 and lamp body 21 upper surface it Between there is gap S5, the most invisible from vehicle front when Engine Casing 17 is closed Bonnet seal part 34, improves aesthetic appearance.

Additionally, the vehicle body front structure of the present invention, as shown in figure 15, at bonnet seal part 34 On be formed with the hollow bulb 76 formed with hollow cylindrical, but be not limited to this, hollow bulb 76 is also Can be the groove shape of U-shaped, furthermore it is also possible to not at the whole width of bonnet seal part 34 Side sets up.

In the vehicle body front structure of the present invention, record " Engine Casing in the description Front end 17a " and " hood framework 16 front end ", but these positions are same position.

Industrial applicibility

The vehicle body front structure of the present invention is suitably applied the passenger car such as car, lorry, especially It is best suitable for the light-duty vehicle being applied in design that there is relatively big front grid.

Claims

1. a vehicle body front structure, has: Engine Casing, by closing engine room Hood shell and be located at described hood shell the back side hood framework constitute；Lamp body, is located at The left and right of the lower section of described Engine Casing, it is characterised in that: described hood framework has: Absorb the bonnet seal part of shock loading；Pacify for installing the sealing member of described bonnet seal part Dress portion；From on the front input of this sealing member installation portion of direction have load time by described hood The sealing member pressing portion of sealing member conquassation, described lamp body has sealing member contact surface, this sealing Part contact surface is positioned at when described Engine Casing is closed and described sealing member pressing portion On the position stood facing each other mutually, when described Engine Casing is closed, make described hood close Sealing lower end and described sealing member contact surface interval.

2. vehicle body front structure as claimed in claim 1, it is characterised in that: described hood Sealing member has the hollow bulb being formed as hollow cylindrical.

3. vehicle body front structure as claimed in claim 2, it is characterised in that: described hood Abut with described sealing member pressing portion near the cardinal extremity of the described hollow bulb of sealing member.

4. vehicle body front structure as claimed in claim 1, it is characterised in that: described hood Framework has: the grille frame extended downwards from front lower surface；It is located at described grid to prop up The front grid of the front surface of frame, described bonnet seal part is positioned at the left and right of described grille frame.

5. vehicle body front structure as claimed in claim 1, it is characterised in that: described hood The sealing member lower surface in the front of described sealing member installation portion with described hood framework abuts.

6. vehicle body front structure as claimed in claim 1, it is characterised in that: described hood In sealing member, when described Engine Casing is closed, described bonnet seal part lower end When side-looking above compared with described Engine Casing front end.