CN103978872A - Vehicle rear tail door strengthening structure - Google Patents

Vehicle rear tail door strengthening structure Download PDF

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Publication number
CN103978872A
CN103978872A CN201410014310.9A CN201410014310A CN103978872A CN 103978872 A CN103978872 A CN 103978872A CN 201410014310 A CN201410014310 A CN 201410014310A CN 103978872 A CN103978872 A CN 103978872A
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CN
China
Prior art keywords
mentioned
tension member
plate
junction surface
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410014310.9A
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Chinese (zh)
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CN103978872B (en
Inventor
菅谷智史
藤田智成
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Suzuki Motor Corp
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Suzuki Motor Corp
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Publication of CN103978872A publication Critical patent/CN103978872A/en
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Publication of CN103978872B publication Critical patent/CN103978872B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00Doors
    • B60J5/10Doors arranged at the vehicle rear
    • B60J5/101Doors arranged at the vehicle rear for non-load transporting vehicles, i.e. family cars including vans
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00Doors
    • B60J5/10Doors arranged at the vehicle rear
    • B60J5/101Doors arranged at the vehicle rear for non-load transporting vehicles, i.e. family cars including vans
    • B60J5/107Doors arranged at the vehicle rear for non-load transporting vehicles, i.e. family cars including vans constructional details, e.g. about door frame, panels, materials used, reinforcements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00Doors
    • B60J5/04Doors arranged at the vehicle sides
    • B60J5/042Reinforcement elements
    • B60J5/0451Block or short strip-type elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)

Abstract

The invention provides a vehicle rear tail door strengthening structure which is used for improving overall rigidity of the rear tail door through connection of an inner strengthening component and an inner plate and an outer plate, vibration of a license plate can be suppressed when a rear tail door is closed, and therefore quality is improved; cavity resonance and swing sound can be inhibited. The rear tail door of the vehicle rear tail door strengthening structure is installed through door hinges, the center of the inner plate is provided with a via hole, the outer plate is provided with a plane part which is used for license plate arrangement, and the upper and lower positions of the plane part are provided with an installation part and a support part. Between the inner plate and the outer plate, an inner strengthening structure used for strengthening plate parts corresponding to a license plate arrangement part is arranged. A first connection part between the outer plate and the strengthening plate is arranged in a part, surround by the installation part and the supporting part, of the plane part. A second connecting part between the inner plate and the strengthening plate is placed on the upper edge part of the via hole and is arranged between direction lines of the first connecting part and the door hinges.

Description

The rear tailgate of vehicle adds competent structure
Technical field
The present invention relates to a kind of rear tailgate and add competent structure, it can strengthen the rear tailgate of hatchback vehicle, and this hatchback vehicle is will in the mode that can rotate, to be installed on the vehicle of the type of body tail for opening and closing the rear tailgate of the peristome of body tail by door hinge.
Background technology
In the past, in order to open and close the peristome of body tail, the rear tailgate of hatchback vehicle was installed on top or the sidepiece of body tail in the mode that can rotate by door hinge.This rear tailgate consists of inner panel and outside plate.Central portion at inner panel is formed with relatively large through hole, as seeking weight-saving lightening hole or conduct in the operation hole that registration mark light, rear tailgate handle are used when arranging and safeguarding.In addition, at outside plate, be provided with for the planar portions of licence plate is set, licence plate is mounted and is supported in the position up and down of this planar portions.
Like this, in the situation that form the outside plate of rear tailgate, licence plate is installed, because licence plate setting unit only depends on the surface rigidity of outside plate, so can produces rigidity deficiency.Therefore, when closing rear tailgate, being positioned at away from the top ends of the position of the door hinge as center of turn of rear tailgate, encounter the bottom of door opening portion, the rubber stopper of sidepiece and while stopping, more the top ends by rear tailgate acts on larger load, and grade deflection largely occurs apart from peripheral part central portion far away, cause the licence plate portion that is arranged on this region to be shaken, and have the anxiety of bringing cheap impression aspect presentation quality.And, likely can encounter the circumferential component such as outside plate because of licence plate portion and produce chatter.
In addition, because the rigidity of licence plate setting unit is not enough, cause licence plate portion to continue to shake, can grade in the bight of plate assembly parts thus produces stress and concentrates, and likely can chap.And, when the vibration on the above-below direction that licence plate portion produces because of the size concavo-convex based on road surface in Vehicle Driving Cycle process etc. is shaken, may cause in addition the generation of the swing sound of cavity resonance in compartment, rear tailgate.In addition, because making rear tailgate, the air-column vibration resonating in the fore-and-aft direction length in compartment vibrates on vehicle fore-and-aft direction, therefore, the load that acts on such as also exist when closing rear tailgate to cause occurring in compartment the such problem of noise to vehicle front and rear view of vehicle crooked.
Therefore, in hatchback vehicle in the past, for example have, by (setting structure that tension member improves surface rigidity between inner panel and outside plate, with reference to patent documentation 1), after the tension member of independent part is installed on to inner panel, by adhesive sealant (Japanese: シ ー ラ) etc., improve the structure (for example,, with reference to patent documentation 2) of surface rigidity.
Patent documentation 1: TOHKEMY 2003-182639 communique
Patent documentation 2: TOHKEMY 2009-166540 communique
Yet, at above-mentioned rear tailgate in the past, add in competent structure, owing to the position of licence plate setting unit, tension member not being set accordingly, and do not improve the rigidity of the part corresponding with licence plate setting unit of inner panel, therefore, can not prevent fully that licence plate portion from shaking, the bight of plate assembly parts grades and chap, occur in compartment the situation of cavity resonance, rear tailgate generation swing sound.In order to improve the rigidity of licence plate setting unit, not only need tension member to engage with inner panel and outside plate, also need to improve the installation rigidity that is installed on plate of tension member.
And, in the adding in competent structure in the past that tension member is installed on to adhesive sealant after inner panel etc., because bonding used aquaseal self is softer, therefore, the displacement that in the time of cannot reducing inner panel and outside plate due to Vehicle Driving Cycle, the vibration of rear tailgate on above-below direction occurs to misplace up and down, cannot suppress such problems such as shaking of licence plate portion and exist.In addition, when when utilizing aquaseal etc. to firmly fix to suppress shaking of licence plate portion etc., can cause stress to concentrate on fixed part, and likely can cause inner panel that the problem of be full of cracks occurs.
On the other hand, in order to reduce shaking of licence plate portion etc., also proposed to suppress by pendant piece etc. is installed at rear tailgate the method for the vibration of rear tailgate on above-below direction, but the method exists and causes weight to increase and cost such problem that raises.
Summary of the invention
The present invention makes in view of such actual conditions, its object is to provide a kind of rear tailgate of vehicle to add competent structure, the rear tailgate of this vehicle adds competent structure and at rear tailgate, pendant piece etc. is not installed, and by the rigidity that engages to improve rear tailgate integral body between interior tension member and inner panel and outside plate, when suppressing rear tailgate and closing, shaking of licence plate portion waited and raising texture, the cavity resonance in compartment, the swing sound of rear tailgate can be suppressed, weight and cost can be reduced.
The problem having in order to solve above-mentioned conventional art, the present invention is that a kind of rear tailgate of vehicle adds competent structure, wherein, for opening and closing the rear tailgate of the peristome of body tail, by a pair of door hinge, be installed on body tail, and can rotate, above-mentioned rear tailgate consists of inner panel and outside plate, central portion at above-mentioned inner panel is provided with through hole, and be provided with for the planar portions of licence plate is set at above-mentioned outside plate, upper-lower position in above-mentioned planar portions is provided with installation portion and the support that above-mentioned licence plate is used, the rear tailgate of this vehicle adds competent structure and is characterised in that, between above-mentioned inner panel and above-mentioned outside plate, be provided with for strengthen above-mentioned inner panel with arranging of above-mentioned licence plate the corresponding part in position and above-mentioned outside plate with the interior tension member that the corresponding part in position is set above-mentioned licence plate, the 1st junction surface between above-mentioned outside plate and above-mentioned interior tension member is equipped on the part in the above-mentioned installation portion of being used by above-mentioned licence plate of above-mentioned planar portions and the scope of above-mentioned support encirclement, the 2nd junction between above-mentioned inner panel and above-mentioned interior tension member is in the limit portion that surrounds above-mentioned through hole, and be at least equipped on and link between above-mentioned the 1st junction surface and the direction line of each above-mentioned door hinge.
In the present invention, above-mentioned the 2nd junction surface is located at least three limit portions, and these three limit portions are for surrounding a limit portion in the limit portion of above-mentioned through hole and being positioned at the limit portion of the both sides of this limit portion.
In addition, in the present invention, it is half side that above-mentioned licence plate is arranged at far away that in the position away from above-mentioned door hinge of above-mentioned rear tailgate, the part between above-mentioned the 1st junction surface and specific the 2nd junction surface of above-mentioned interior tension member is forming roughly zed shape of cross section when vehicle side is seen, this specific the 2nd junction surface refers to above-mentioned the 2nd junction surface in central limit portion that is arranged in above-mentioned three the limit portions that surround above-mentioned through hole, in the above-mentioned cross section of above-mentioned interior tension member roughly the upper bond of the part of zed shape in above-mentioned inner panel and in the above-mentioned cross section of above-mentioned interior tension member roughly the lower bond of the part of zed shape in above-mentioned outside plate, the above-mentioned cross section of the above-mentioned interior tension member roughly pars intermedia up and down of the part of zed shape is left and extends towards the oblique rear of vehicle from above-mentioned door hinge.
And in the present invention, above-mentioned the 1st junction surface is being configured in the region being surrounded by above-mentioned the 2nd junction surface that is positioned at above-mentioned three limit portions of above-mentioned through hole when rear view of vehicle is seen.
As mentioned above, the present invention is that a kind of rear tailgate of vehicle adds competent structure, wherein, for opening and closing the rear tailgate of the peristome of body tail, by a pair of door hinge, be installed on body tail, and can rotate, above-mentioned rear tailgate consists of inner panel and outside plate, central portion at above-mentioned inner panel is provided with through hole, and be provided with for the planar portions of licence plate is set at above-mentioned outside plate, upper-lower position in above-mentioned planar portions is provided with installation portion and the support that above-mentioned licence plate is used, between above-mentioned inner panel and above-mentioned outside plate, be provided with for strengthen above-mentioned inner panel with arranging of above-mentioned licence plate the corresponding part in position and above-mentioned outside plate with the interior tension member that the corresponding part in position is set above-mentioned licence plate, the 1st junction surface between above-mentioned outside plate and above-mentioned interior tension member is equipped on the part in the above-mentioned installation portion of being used by above-mentioned licence plate of above-mentioned planar portions and the scope of above-mentioned support encirclement, the 2nd junction between above-mentioned inner panel and above-mentioned interior tension member is in the limit portion that surrounds above-mentioned through hole, and be at least equipped on and link between above-mentioned the 1st junction surface and the direction line of each above-mentioned door hinge.
; at rear tailgate of the present invention, add in competent structure; installation portion and support that the 1st junction surface between outside plate and interior tension member is used by licence plate surround; therefore; in the situation that the load that the installation portion of being used by licence plate and support bear from licence plate can not become cantilever position; and interior tension member can bear the load that acts on rear tailgate from rear view of vehicle via the 1st junction surface.In addition, the 2nd junction surface between inner panel and above-mentioned interior tension member is equipped on the limit portion of the through hole that surrounds inner panel and is the part linking between the 1st junction surface and the direction line of each door hinge, therefore, the corresponding direction of load that acts on interior tension member from rear view of vehicle, along the direction that rear tailgate is closed, is born this load as the crow flies and can not make this load that deflection occurs.
Thereby, adopt rear tailgate of the present invention to add competent structure, by the rigidity that engages to improve rear tailgate integral body between interior tension member and inner panel and outside plate, when suppressing rear tailgate and closing, shaking of licence plate portion waited and raising texture, can give automobile feeling of high class, and can suppress the cavity resonance in compartment, the swing sound of rear tailgate, thereby can realize comfortable Vehicle Driving Cycle.And, adopt rear tailgate of the present invention to add competent structure, needn't pendant piece etc. be installed at rear tailgate, therefore, can seek to reduce weight and cost.
In addition, at rear tailgate of the present invention, add in competent structure, above-mentioned the 2nd junction surface is located at least three limit portions, these three limit portions are for surrounding a limit portion in the limit portion of above-mentioned through hole and being positioned at the limit portion of the both sides of this limit portion, therefore, the local stiffness of the periphery of this through hole can be improved, by the interior tension member that is formed with pedestal being engaged with outside plate at the 1st junction surface, the load from licence plate can be born reliably.Thereby, adopt rear tailgate of the present invention to add competent structure, can further effectively improve the problem points of above-mentioned conventional art.
And, at rear tailgate of the present invention, add in competent structure, it is half side that above-mentioned licence plate is arranged at far away that in the position away from above-mentioned door hinge of above-mentioned rear tailgate, the part between above-mentioned the 1st junction surface and specific the 2nd junction surface of above-mentioned interior tension member is forming roughly zed shape of cross section when vehicle side is seen, this specific the 2nd junction surface refers to above-mentioned the 2nd junction surface in central limit portion that is arranged in above-mentioned three the limit portions that surround above-mentioned through hole, in the above-mentioned cross section of above-mentioned interior tension member roughly the upper bond of the part of zed shape in above-mentioned inner panel and in the above-mentioned cross section of above-mentioned interior tension member roughly the lower bond of the part of zed shape in above-mentioned outside plate, the above-mentioned cross section of the above-mentioned interior tension member roughly pars intermedia up and down of the part of zed shape is left and extends towards the oblique rear of vehicle from above-mentioned door hinge, therefore, the cross section of interior tension member roughly the part of zed shape with respect to the load from rear view of vehicle, the load of vehicle above-below direction can play the effect of buffering, and can improve the formability of interior tension member self.And, can bear as the crow flies the load that acts on interior tension member from rear view of vehicle.
In addition, interior tension member need to bear and support from load of rear view of vehicle etc., but when interior tension member being too firmly fixed to outside plate etc., the deflection that can cause interior tension member to bear outer slab integral, this is the limit portion that concentrates on the 1st junction surface, the 2nd junction surface and the through hole of interior tension member is installed due to stress.In addition, when interior tension member excessively pushes the planar portions that licence plate uses, it is large that the distortion of the recess periphery that licence plate is used becomes, and become the reason that be full of cracks occurs.
So, at rear tailgate of the present invention, add in competent structure, above-mentioned the 1st junction surface is being configured in the region being surrounded by above-mentioned the 2nd junction surface that is positioned at above-mentioned three limit portions of above-mentioned through hole when rear view of vehicle is seen, therefore, load from the 1st junction surface can not tilt, and can be distributed to equably each the 2nd junction surface, thereby can avoid stress concentration at a junction surface.
Accompanying drawing explanation
Fig. 1 observes from rear view of vehicle the block diagram of applying the rear tailgate of the vehicle that has the rear tailgate of embodiments of the present invention to add competent structure and obtaining, and is the block diagram of the state before licence plate is installed on to outside plate.
Fig. 2 means the block diagram of the state before the interior tension member that the rear tailgate of being located at embodiments of the present invention is added to competent structure engages with inner panel and outside plate.
Fig. 3 means the block diagram of the state after the interior tension member that the rear tailgate of being located at embodiments of the present invention is added to competent structure engages with inner panel.
Fig. 4 means that the rear tailgate of being located at embodiments of the present invention adds the front view of the interior tension member of competent structure.
Fig. 5 means the figure of the state after embodiments of the present invention interior tension member is engaged with inner panel and outside plate, is the C-C section-drawing of Fig. 4.
description of reference numerals
1, rear tailgate; 2, door hinge; 3, licence plate; 4, interior tension member; 4a, top; 4b, bottom; 4c, 4d, bottom; 4e, upper and lower pars intermedia; 11, inner panel; 12, through hole; 12a, top portion; 12b, 12c, side portion; 21, outside plate; 22, planar portions; 23, recess; 24, plate installation portion; 25, plate support; A1~A5, the 2nd junction surface; B1, B2, the 1st junction surface; D1, D2, direction line.
The specific embodiment
Below, based on embodiment shown in the drawings, explain the present invention.
Fig. 1~Fig. 5 represents that the rear tailgate of the vehicle of embodiments of the present invention adds competent structure.
As shown in FIG. 1 to 3, to add the applicable vehicle of competent structure be the hatchback vehicle that is used in the type that the rear tailgate 1 of the door opening portion (not shown) that opens and closes body tail opens towards top to the rear tailgate of embodiments of the present invention.Therefore, rear tailgate 1 is installed on body tail by being located at the pair of right and left door hinge 2 of body top section in the mode that can rotate, is configured to when shutter door peristome and rotates centered by door hinge 2.The mode that can rotate with rear tailgate 1 supports the pair of right and left door hinge 2 of this rear tailgate 1 and in vehicle-width direction overhead, opens compartment of terrain configuration, is located at respectively near the part of left and right sides corner part of the top that is positioned at door opening portion of body tail.And, on the top of rear tailgate 1, be provided with for the window peristome of not shown wind glass is installed.
Rear tailgate 1 consists of with the outside plate 21 that is equipped on outside, compartment the inner panel 11 that is equipped on inner side, compartment, by the periphery of the periphery of this inner panel 11 and outside plate 21 is engaged one another, forms the shelly that inside has space.As shown in Figures 2 and 3, at the central portion of inner panel 11, be provided with the through hole 12 of relatively large roughly quadrangle shape, as seeking weight-saving lightening hole or conduct in the operation hole that registration mark light, rear tailgate handle are used when arranging and safeguarding.
In addition, as depicted in figs. 1 and 2, at outside plate 21, be provided with for the planar portions 22 of licence plate 3 is set, this planar portions 22 has the quadrangle shape corresponding with the size of licence plate 3, is formed at the bottom surface towards the recess 23 of vehicle front side depression.The left and right sides on the vehicle-width direction of the upper side position of planar portions 22 is provided with for the plate installation portion 24 of licence plate 3 is installed, and the left and right sides on the vehicle-width direction of the lower side position of planar portions 22 is provided with for supporting the plate support 25 of licence plate 3.Thereby licence plate 3, by the position up and down of its rear side is fastened with corresponding plate installation portion 24 and plate support 25 respectively, is mounted and is supported in the position up and down of this planar portions 22.
On the other hand, rear tailgate in present embodiment adds in competent structure, as shown in Fig. 2~Fig. 5, between inner panel 11 and outside plate 21, in the gap S on vehicle fore-and-aft direction, be provided with interior tension member 4, this interior tension member 4 has above-below direction length and the left and right directions width of regulation, and when rear view of vehicle is seen, is being the trapezoidal shape of roughly growing crosswise.This interior tension member 4 be for strengthen inner panel 11 and outside plate 21 when rear view of vehicle is seen with the board member that the corresponding part in position is set of licence plate 3, form the structure that utilizes this interior tension member 4 to improve the plate rigidity of the part that the ponderable licence plate 3 of tool is installed.
For this reason, interior tension member 4 is disposed at the 12a of the top portion side of the through hole 12 of inner panel 11, and extends along vehicle-width direction.In addition, interior tension member 4 is configured to: the length on its vehicle-width direction forms the width of the 12a of top portion that is greater than through hole 12, its left side sidepiece bottom 4c is along the circular-arc bight configuration of the left upper portion of through hole 12, and its sidepiece bottom, right side 4d is towards oliquely downward extending.Thereby interior tension member 4 is located at the 12a of top portion of through hole 12 and the top of limit, the left and right sides 12b of portion, 12c that surrounds inner panel 11.
The interior tension member 4 of present embodiment is by utilizing spot welding to engage and be installed on inner panel 11 and outside plate 21 with the superimposed part of inner panel 11 and with a plurality of assigned positions in the superimposed part of outside plate 21 it.; as shown in Fig. 1~Fig. 5; bound fraction between outside plate 21 and interior tension member 4, two the 1st junction surface B1, B2 are equipped on the part of the scope of being surrounded by two the plate installation portions 24 that are positioned at position up and down that arrange for licence plate 3 can be stably installed and two plate supports 25 of planar portions 22.
Therefore, at interior tension member 4, the 1 junction surface B1, B2, be located at the position that the bottom 4b side of this interior tension member 4 is kept right, and in vehicle-width direction overhead, open compartment of terrain and set.Thus, the set positions of the 1st junction surface B1, B2 is in the rear side of licence plate 3, and as shown in Figure 1 and Figure 5, the trace point B that beats of the 1st junction surface B1, B2 is hidden in licence plate 3 and can damage outward appearance.
And as shown in Figure 4, the 1st junction surface B1, B2 are being configured in by five the 2nd junction surface A1~A5(aftermentioneds that are positioned at three limit portions of through hole 12 when rear view of vehicle is seen) region that surrounds.By this configuration, from the load of the 1st junction surface B1, B2, can not tilt, and be distributed to equably each the 2nd junction surface A1~A5, thereby can avoid stress concentration at the situation at a junction surface.
In addition, as shown in Fig. 2~Fig. 5, as the 2nd junction surface A1 in center upper portion position in five the 2nd junction surface A1~A5 of the bound fraction between inner panel 11 and interior tension member 4, be positioned at Bu Zhong top, the limit 12a of portion of the through hole 12 that surrounds inner panel 11, and be equipped on the part between the direction line D1 that links the 1st junction surface B1 and offside door hinge 2 and link the 1st junction surface B2 and the direction line D2 of offside door hinge 2 of the top 4a of interior tension member 4.Thus, the corresponding direction of load that acts on interior tension member 4 from rear view of vehicle, along the direction that rear tailgate 1 is closed, is born this load as the crow flies and make interior tension member 4 can not make this load that deflection ground occurs.
And, the 2nd junction surface A2 of two side positions in top in five the 2nd junction surface A1~A5 is, the left and right sides of top 4a that A3 is positioned at tension member 4, and sets to open compartment of terrain across the mode of the 2nd junction surface A1 in middle position in vehicle-width direction overhead between them.And, in bottom, the 2nd junction surface A4, the A5 of two side positions are positioned at bottom 4c, the 4d of the left and right sides at the bottom of interior tension member 4 4b, and set to open compartment of terrain across the mode of the 1st junction surface B1, the B2 that mediate in vehicle-width direction overhead between them.
Thereby the 2nd junction surface A1~A5 is located in the limit portion of the through hole 12 that surrounds inner panel 11 at least the 12a of top portion and is positioned at these three limit portions of limit, the left and right sides 12b of portion, 12c of the both sides of the 12a of this top portion, and the rigidity that can seek to improve the peripheral part of through hole 12.
In addition, as shown in figures 1 and 3, it is half side that the licence plate 3 of present embodiment is located at far away that in the position away from door hinge 2 of rear tailgate 1.And, as shown in Figure 5, interior tension member 4 at the 1st junction surface B1 and surrounding part between three 12a of limit portion of the through hole 12 of inner panel 11, the 2nd junction surface A1 in the central 12a of top portion in 12b, 12c and when vehicle side is seen, be bent to form as longitudinally longer cross section zed shape roughly, the cross section of the interior tension member 4 roughly top 4a of the part of zed shape utilizes spot welding to be engaged in the face side of inner panel 11.In addition, the cross section of interior tension member 4 roughly the bottom 4b of the part of zed shape utilize spot welding be engaged in outside plate 21 rear side with for the part of planar portions 22 opposite positions of licence plate 3 is set.And the cross section of the interior tension member 4 roughly 4e of pars intermedia up and down of the part of zed shape dips down towards the oblique rear of vehicle tiltedly and to extend in the mode of leaving from door hinge 2, do not engage with any one in inner panel 11 and outside plate 21.
When the interior tension member 4 of this cross sectional shape is equipped on the gap S between inner panel 11 and outside plate 21 front and back, and its top 4a is engaged in inner panel 11, when its underpart 4b is engaged in outside plate 21, the cross section of interior tension member 4 roughly the part of zed shape to putting on the load from rear view of vehicle of outside plate 21 grades, the load of vehicle above-below direction plays the effect of buffering, and can also bear as the crow flies the load that puts on interior tension member 4 from rear view of vehicle.
Then, illustrate that the rear tailgate of the vehicle that obtains embodiments of the present invention adds a method of competent structure, first, as shown in Figure 2, make top 4a, the 4bJi left and right sides, bottom sidepiece bottom 4c, the 4d of interior tension member 4 overlapping at assigned position and the inner panel 11 of inner panel 11, and utilize spot welding to engage, the 2nd junction surface A1~A5 is set thus, thereby interior tension member 4 is installed on to inner panel 11, makes interior assembly parts.Then, this interior assembly parts is assembled in to outside plate 21, and make interior tension member 4 overlapping with the back side of the planar portions 22 of outside plate 21, and utilize spot welding to engage, the 1st junction surface B1, B2 are set thus, in utilizing, tension member 4 is fixing by outside plate 21 and inner panel 11, like this, just can obtain the rear tailgate 1 having through strengthened structure.
Like this, rear tailgate at the vehicle of embodiments of the present invention adds in competent structure, in when vehicle side is seen the cross section of tension member 4 roughly the part of zed shape be equipped in the gap S between inner panel 11 and outside plate 21, and, top 4a, the 4bJi left and right sides, bottom sidepiece bottom 4c, 4d and inner panel 11, outside plate 21 engages, owing to being provided with the 2nd junction surface A1~A5 and the 1st junction surface B1 with peculiar setup relation, B2, therefore, can improve the whole rigidity of rear tailgate 1, thereby in the time of can being suppressed at rear tailgate 1 and closing, licence plate 3 grades shakes etc. and seeks to improve texture, and can effectively suppress the cavity resonance in compartment, the swing sound of rear tailgate.And, at rear tailgate of the present invention, add in competent structure, by expand interior tension member 4 global shape, increase thickness of slab, append the modes such as strengthening rib, can also improve the inner panel 11 engaging with interior tension member 4, the rigidity of outside plate 21, therefore, can reduce the thickness of slab of inner panel 11, outside plate 21.In addition, owing to need to pendant piece etc. not being installed at rear tailgate 1, therefore, can reduce weight and cost.
Above, embodiments of the present invention have been described, but the present invention is not limited to above-mentioned embodiment, based on technological thought of the present invention, can carries out various distortion and change.
For example, the reinforcement Structural application of above-mentioned embodiment is in by being located at the rear tailgate 1 of the type that the pair of right and left door hinge 2 on the top of body tail opens towards top, but can also be applied to by being located at the rear tailgate of the type that the upper and lower a pair of door hinge of the sidepiece of body tail opens towards side.In this case, licence plate also needs to be arranged at that half side side far away in the position away from door hinge of rear tailgate 1.
In addition, interior tension member 4 also can not utilize spot welding to engage with inner panel 11 but utilize other the welding method such as arc welding to engage with inner panel 11.And interior tension member 4 does not utilize welding engage with inner panel 11 and utilize bolt assembling to engage and can obtain identical effect with inner panel 11.
And, the quantity that sets the 1st junction surface B1, B2 and the 2nd junction surface A1~A5 is not limited to the quantity in above-mentioned embodiment, as long as can maintain the position relationship with respect to planar portions 22, door hinge 2 etc., just can increase or reduce according to the size of interior tension member 4, shape.

Claims (4)

1. the rear tailgate of a vehicle adds competent structure, rear tailgate at this vehicle adds in competent structure, for opening and closing the rear tailgate of the peristome of body tail, by a pair of door hinge, be installed on body tail, and can rotate, above-mentioned rear tailgate consists of inner panel and outside plate, central portion at above-mentioned inner panel is provided with through hole, and be provided with for the planar portions of licence plate is set at above-mentioned outside plate, upper-lower position in above-mentioned planar portions is provided with installation portion and the support that above-mentioned licence plate is used, the rear tailgate of this vehicle adds competent structure and is characterised in that
Between above-mentioned inner panel and above-mentioned outside plate, be provided with for strengthen above-mentioned inner panel with arranging of above-mentioned licence plate the corresponding part in position and above-mentioned outside plate with the interior tension member that the corresponding part in position is set above-mentioned licence plate, the 1st junction surface between above-mentioned outside plate and above-mentioned interior tension member is equipped on the part in the above-mentioned installation portion of being used by above-mentioned licence plate of above-mentioned planar portions and the scope of above-mentioned support encirclement
The 2nd junction between above-mentioned inner panel and above-mentioned interior tension member is in the limit portion that surrounds above-mentioned through hole, and is at least equipped on and links between above-mentioned the 1st junction surface and the direction line of each above-mentioned door hinge.
2. the rear tailgate of vehicle according to claim 1 adds competent structure, it is characterized in that,
Above-mentioned the 2nd junction surface is located at least three limit portions, and these three limit portions are for surrounding a limit portion in the limit portion of above-mentioned through hole and being positioned at the limit portion of the both sides of this limit portion.
3. the rear tailgate of vehicle according to claim 1 and 2 adds competent structure, it is characterized in that,
It is half side that above-mentioned licence plate is arranged at far away that in the position away from above-mentioned door hinge of above-mentioned rear tailgate, the part between above-mentioned the 1st junction surface and specific the 2nd junction surface of above-mentioned interior tension member is forming roughly zed shape of cross section when vehicle side is seen, this specific the 2nd junction surface refers to above-mentioned the 2nd junction surface in central limit portion that is arranged in above-mentioned three the limit portions that surround above-mentioned through hole, in the above-mentioned cross section of above-mentioned interior tension member roughly the upper bond of the part of zed shape in above-mentioned inner panel and in the lower bond of above-mentioned interior tension member in above-mentioned outside plate, the above-mentioned cross section of the above-mentioned interior tension member roughly pars intermedia up and down of the part of zed shape is left and extends towards the oblique rear of vehicle from above-mentioned door hinge.
4. according to the rear tailgate of the vehicle described in any one in claim 1~3, add competent structure, it is characterized in that,
Above-mentioned the 1st junction surface is being configured in the region being surrounded by above-mentioned the 2nd junction surface that is positioned at above-mentioned three limit portions of above-mentioned through hole when rear view of vehicle is seen.
CN201410014310.9A 2013-02-12 2014-01-13 The rear tailgate of vehicle adds competent structure Expired - Fee Related CN103978872B (en)

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