CN1990324A - Rear top girder structure of back door vehicle - Google Patents
Rear top girder structure of back door vehicle Download PDFInfo
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- CN1990324A CN1990324A CN 200610142312 CN200610142312A CN1990324A CN 1990324 A CN1990324 A CN 1990324A CN 200610142312 CN200610142312 CN 200610142312 CN 200610142312 A CN200610142312 A CN 200610142312A CN 1990324 A CN1990324 A CN 1990324A
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- reinforcements
- back timber
- back door
- right sides
- girder structure
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Abstract
The present invention provided a rear roof rail part structure in a back-door vehicle. Right and left reinforcements 5 are formed in a U-shaped section in which a center portion of each body part 51 is protruded upwardly. Beads 41, 52 continuous along the vehicle width direction are formed at least to middle parts of the right and left reinforcements 5 from a rear roof rail 4, and the beads 52 of the right and left reinforcements 5 is formed continuous to the body 51 having the substantially U-shaped section in the right and left reinforcements 5. The invention is capable of obtaining sufficient rigidity of a back-door opening part and torsional rigidity of a vehicle body while eliminating an upper roof rail.
Description
Technical field
The present invention relates to the rear top girder structure of back door vehicle.
Background technology
Generally, the back door opening portion rigidity of back door vehicle and car body torsional rigid are one of important index in acoustical vibration, operational stability, the car body durability.Therefore, the rigidity that improves back door opening portion rigidity and the far-reaching back door opening of car body torsional rigid portion periphery is very important.But,, can produce the problem of conflicting with the requirement of car body weight-saving in order to improve rigidity.
Therefore, solution as the problems referred to above, a kind of structure is proposed (for example, with reference to No. 182176 communiques of patent document 1-Japanese patent laid-open), this structure is in the rear top girder structure of back door vehicle, about engage the end, the left and right sides of rear back timber on the top rear side end of two strut members and reinforcement be installed in the side end back door vehicle nearby of this rear back timber, from about the top rear side of two car body side external members stride across the end, the left and right sides of described rear back timber and the pair of right and left reinforcement that arrives this rear back timber respectively with the rear back timber and about two car body side external members be connected, and on reinforcement, back door hinge is installed.
Promptly, according to this example in the past, by using the big like this reinforcement rear back timber of top rear end that strides across car body side outside plate from the side end of rear back timber, the external force that the top back timber is not set and will passes to back door hinge passes to rear pillar, so have the rigidity of support that improves the back door and can realize the advantage of the lightweight and the manufacturing cost reduction of car body.
But, in above-mentioned example in the past, as mentioned above, owing to do not use the top back timber, rigidity between the reinforcement of the left and right sides is local decline at the connecting portion place of two car body side external members and reinforcement, and the result produces the rigidity that can not obtain sufficient back door opening portion and the problem of car body torsional rigid.
Promptly, must improve each bight rigidity of peristome, to prevent the distortion of reversing the back door opening portion that input force causes by car body, if the rigidity of reinforcement, particularly the bending stiffness of above-below direction lowers in the part, when input force is reversed in the car body effect,, has the danger that produces distortion in back door opening portion owing to bending with a part of stress concentration.
Summary of the invention
The present invention is conceived to make as above-mentioned problem in the past, and purpose provides and a kind ofly not only omitted the top back timber, but also can obtain the rear top girder structure of the back door vehicle of the rigidity of sufficient back door opening portion and car body torsional rigid.
In order to achieve the above object, the rear top girder structure of the back door vehicle of technical solution of the present invention 1, about the upper end of two strut members engage the end, the left and right sides that the rear back timber is arranged, end, the left and right sides at this rear back timber nearby is equipped with in the structure of reinforcement, the pair of right and left reinforcement respectively with this rear back timber and about two car body side external members engage, this pair of right and left reinforcement from about the top rear side of the two car body side external members end, the left and right sides that strides across the rear back timber arrive the rear back timber, the left and right sides portion of two car body side external members, two strut members about described about this, be formed with from the rear back timber to about the middle part at least of two reinforcements along the continuous reinforced rib of overall width direction.
In rear top girder structure as technical scheme 1 described back door vehicle, as mentioned above, by forming such structure, promptly from about the left and right sides portion of two strut members have about the top rear side of the two car body side external members end, the left and right sides that strides across described rear back timber arrive the rear back timber the pair of right and left reinforcement respectively with this rear back timber and about the structure that engages of two car body side external members, be formed with from the rear back timber to about the middle part at least of two reinforcements along the continuous reinforced rib of overall width direction, can improve the rigidity of rear back timber portion, thereby the special phenomenon that can not produce stress concentration at the junction surface of two reinforcements and rear back timber can improve the bending stiffness of above-below direction, therefore, can obtain both to have omitted the top back timber, can obtain the effect of sufficient back door opening portion's rigidity and car body torsional rigid again.
Description of drawings
Fig. 1 illustrate the back door vehicle of embodiment rear top girder structure, be illustrate the state installed before the top board from the vehicle upper rear side see block diagram.
Fig. 2 is the longitudinal diagram of the A-A line of state after on the rear top girder structure of Fig. 1 top board being installed.
Fig. 3 is the block diagram of elevation profile part of the A-A line of Fig. 1.
Fig. 4 is the longitudinal diagram of the B-B line of state after on the rear top girder structure of Fig. 1 top board being installed.
Fig. 5 is the block diagram of the elevation profile part of the B-B line of state after on the rear top girder structure of Fig. 1 top board being installed.
Fig. 6 is the longitudinal diagram of the C-C line of state after on the rear top girder structure of Fig. 1 top board being installed.
Fig. 7 is the block diagram of the elevation profile part of the C-C line of state after on the rear top girder structure of Fig. 1 top board being installed.
Fig. 8 illustrates the rear top girder structure of the back door vehicle of embodiment, is to understand the easy figure that the torsional deflection state of back door opening portion is shown turgidly for making.
Fig. 9 illustrates the rear top girder structure of the back door vehicle of embodiment, is to understand the easy figure that represents the local deformation state of back door opening portion turgidly for making.
The specific embodiment
Below with reference to the accompanying drawings embodiments of the invention are described.
The rear top girder structure of the back door vehicle of present embodiment is corresponding to the described invention of claim 1-7.
Fig. 1 illustrates the rear top girder structure of the back door vehicle of present embodiment, it is the block diagram of being seen from the vehicle upper rear side that state before the top board show to be installed, Fig. 2 is the longitudinal diagram of the A-A line of state after on the rear top girder structure of Fig. 1 top board being installed, Fig. 3 is the block diagram of elevation profile part of the A-A line of Fig. 1, Fig. 4 is the longitudinal diagram of the B-B line of state after on the rear top girder structure of Fig. 1 top board being installed, Fig. 5 is the block diagram of the elevation profile part of the B-B line of state after on the rear top girder structure of Fig. 1 top board being installed, Fig. 6 is the longitudinal diagram of the C-C line of state after on the rear top girder structure of Fig. 1 top board being installed, Fig. 7 is the block diagram of the elevation profile part of the C-C line of state after on the rear top girder structure of Fig. 1 top board being installed, Fig. 8 illustrates the rear top girder structure of the back door vehicle of embodiment, be to understand the easy figure that the torsional deflection state of back door opening portion is shown turgidly for making, Fig. 9 illustrates the rear top girder structure of the back door vehicle of embodiment, is to understand the easy figure that shows the local deformation state of back door opening portion turgidly for making.
The back door vehicle of having used the rear top girder structure of present embodiment mainly comprises external member 2 behind left and right sides car body side external member 1, the left and right sides post, left and right sides strut member 3, rear back timber 4, left and right sides reinforcement 5 and top board 6.
In more detail, the back door vehicle of present embodiment is such rear top girder structure, about the upper end of two strut members 3 engage left and right sides end side that rear back timber 4 is arranged, nearby be equipped with in the structure of reinforcement 5 with bolt and spot welding in the end, the left and right sides of this rear back timber 4, from about the left and right sides portion of two strut members 3 have about the top rear side of two car body side external members 1 end, the left and right sides that strides across rear back timber 4 arrive rear back timber 4 pair of right and left reinforcement 5 respectively with this rear back timber 4 and about two car body side external members 1 engage.
Two reinforcements 5 are shown in Fig. 4,5 about above-mentioned, form the cross section コ word shape that the vehicle fore-and-aft direction central portion of its body 51 projects upwards.
And, as shown in Figure 1, with roughly certain width be formed with from rear back timber 4 to about the middle part of two reinforcements 5 along the continuous reinforced rib 41,52 of overall width direction, simultaneously the reinforced rib 52 of two reinforcements 5 form with this about the cross section of two reinforcements 5 be an incline line continuum of states of the body 51 of rough コ word shape, an incline line of these state two reinforced ribs 41,52 continuously to about the overall width direction both ends of two reinforcements 5.
And, shown in the longitudinal section of Fig. 2, for making along the continuous reinforced rib 41 of overall width direction, 52 about the steadily connection of a place, joint portion nearby, end, the left and right sides of 5 pairs of rear back timbers 4 of two reinforcements, about two reinforcements 5 be directed downwards inclination to joint portion a, the both ends, the left and right sides of rear back timber 4 are inclined upwardly to joint portion a direction, form middle high form.
And, as Fig. 1, shown in Figure 7 and since about two reinforcements 5 form roughly circular-arc that its overall width direction central portions uprise, form circular-arc that overall width direction central portions uprise from body 51 to the 52 continuous rear longitudinal wall part 51a of reinforced rib portion.Hinge installation portion 53 along overall width direction cross section コ word shape rearward forms from this longitudinal wall part 51a, and reinforcement 5 forms the state that strides across hinge installation portion 53 along the overall width direction thus.
Then, effect and the effect to embodiment describes.
In the rear top girder structure of the back door vehicle of present embodiment, as mentioned above, since by make from rear back timber 4 to about the middle part at least of two reinforcements 5 be formed with along the structure of the continuous reinforced rib 41,52 of overall width direction, to improve the rigidity of rear back timber 4 parts, therefore thereby the phenomenon that particularly can not produce stress concentration at the junction surface of two reinforcements 5 and rear back timber 4 can improve the bending stiffness of above-below direction, can obtain not only to omit the top back timber, but also can obtain the effect of sufficient back door opening portion's 7 rigidity and car body torsional rigid.
Promptly, because the backward input force of the input force or the left and right sides from the left and right sides either party of back door opening portion 7, as shown in Figure 8, can produce the trend of the distortion of the bight K angle variation that makes post top, to this, since be formed with about continuous reinforced rib 41,52 on two reinforcements 5 and the rear back timber, the top of back door opening portion 7 (about two reinforcements 5 and rear back timber 4) is crooked and power is sent to opposition side and bears it, can suppress the distortion of back door opening portion 7 thus.
And, by be formed with roughly certain width from rear back timber 4 to about the middle part of two reinforcements 5 along the continuous reinforced rib 41,52 of overall width direction, so that therefore flexure stress can further not improve rigidity in concentration of local.
And, about two reinforcements 5 form the cross section コ word shape that the central portion of its body 51 projects upwards, be formed with from rear back timber 4 to about the middle part of two reinforcements 5 along the continuous reinforced rib 41 of overall width direction, 52, simultaneously by with about the reinforced rib 52 of two reinforcements 5 form with this about the cross section of two reinforcements 5 roughly be an incline line continuum of states of the body 51 of コ word shape, at this state, two reinforced ribs 41, an incline of 52 is linear become continuously to about the overall width direction both ends of two reinforcements 5, so that form continuous reinforced rib, therefore can further improve rigidity in the overall width direction total length of the body 51 that arrives left and right sides reinforcement 5.
And, even because spatial relationship can not enlarge the occasion of reinforced rib 41 width in rear back timber 4 parts, also in the wings top 4 and about the total length of two reinforcements 5 form reinforced rib continuously.
And, along the continuous reinforced rib 41 of overall width direction, 52 with about a place, joint portion nearby, end, the left and right sides of 5 pairs of rear back timbers 4 of two reinforcements continue under the bonded assembly state reposefully, thus, the phenomenon of concentrating at this joint portion a upper stress is alleviated, and therefore can suppress the attenuating of bending stiffness.
And the both ends, the left and right sides of rear portion back timber 4 are inclined upwardly to joint portion a direction, high form in the middle of forming, can reduce in view of the above the rear back timber and about the angle of inclination of joint portion a of two reinforcements 5, therefore can further suppress the attenuating of bending stiffness.
And, since about two reinforcements form roughly circular-arc that its overall width direction central portion uprises, form roughly circular-arc that overall width direction central portion uprises from body 51 to the 52 continuous rear longitudinal wall part 51a of reinforced rib portion, because the hinge installation portion 53 along overall width direction cross section コ word shape rearward forms from this longitudinal wall part 51a, reinforcement 5 forms the state that strides across hinge installation portion 53 along the overall width direction, can improve when opening and closing at the back door supporting rigidity to the load F of the above-below direction that acts on hinge installation portion 53 with this structure.
Therefore, can not make near the H distortion partly as shown in Figure 9 hinge installation portion 53 on back door opening portion top (about two reinforcements 5 and rear back timber 4), in view of the above, can improve the supporting rigidity at back door owing to the load F of the above-below direction that acts on hinge installation portion 53.
More than, with reference to the accompanying drawings embodiments of the invention are illustrated, but the present invention is not limited to the foregoing description, even do not break away from design modification of main idea scope of the present invention etc., also still fall into category of the present invention.
For example, in an embodiment, show such example, promptly by with about the reinforced rib 52 of two reinforcements 5 form with this about the cross section of two reinforcements 5 be body 51 continuums of states of rough コ word shape, and form continuous reinforced rib in the overall width direction total length of the body 51 of left and right sides reinforcement 5, even but only form from rear back timber 4 to about the middle part at least of two reinforcements 5 along the continuous reinforced rib 41,52 of overall width direction, also can fully improve rigidity.
Claims (7)
1. the rear top girder structure of a back door vehicle; About the upper end of two support members engage end, the left and right sides that the rear back timber is arranged, nearby be equipped with in the structure of reinforcement in the end, the left and right sides of this rear back timber; The pair of right and left reinforcement respectively with this rear back timber and about two car body side external members engage; This pair of right and left reinforcement from about the top rear side of the two car body side external members end, the left and right sides that strides across described rear back timber arrive the rear back timber; The left and right sides section of two car body side external members, two support members about described about this; It is characterized in that
Be formed with middle part at least from described rear back timber two reinforcements about described along the continuous reinforced rib of overall width direction.
2. the rear top girder structure of back door vehicle as claimed in claim 1 is characterized in that, forms with roughly certain width along the continuous reinforced rib of overall width direction from the middle part at least of described rear back timber two reinforcements about described.
3. the rear top girder structure of back door vehicle as claimed in claim 1 or 2, it is characterized in that the incline line from the middle part at least of described rear back timber two reinforcements about described along the continuous reinforced rib of overall width direction is the overall width direction both ends of two reinforcements about described continuously.
4. the rear top girder structure of back door vehicle as claimed in claim 1 or 2 is characterized in that, the rear of two reinforcements has the hinge installation portion at back door respectively about described,
Two reinforcements form roughly circular-arc that its overall width direction central portion uprises about described, form simultaneously along the overall width direction and stride across state as the described hinge installation portion at center.
5. the rear top girder structure of back door vehicle as claimed in claim 1 or 2 is characterized in that, described about two reinforcements the end, the left and right sides of described rear back timber connecting part is nearby continued to steady bonded assembly state with upper and lower.
6. the rear top girder structure of back door vehicle as claimed in claim 1 or 2, it is characterized in that, described reinforced rib forms like this, two reinforcements are to the joint portion nearby, end, the left and right sides of described rear back timber about described, two reinforcements are directed downwards inclination to described joint portion about described, and the both ends, the left and right sides of described rear back timber are inclined upwardly to described joint portion direction.
7. the rear top girder structure of back door vehicle as claimed in claim 1 or 2 is characterized in that, described about the reinforced rib of two reinforcements form with this about the cross section of two reinforcement bodies be the body continuum of states of rough コ word shape.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005281922 | 2005-09-28 | ||
| JP2005281922 | 2005-09-28 | ||
| JP2006182879 | 2006-07-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1990324A true CN1990324A (en) | 2007-07-04 |
| CN100519307C CN100519307C (en) | 2009-07-29 |
Family
ID=38212924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101423121A Active CN100519307C (en) | 2005-09-28 | 2006-09-28 | Rear top girder structure of back door vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100519307C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103958329A (en) * | 2011-11-25 | 2014-07-30 | 本田技研工业株式会社 | Vehicle body superstructure |
| CN107554618A (en) * | 2016-07-01 | 2018-01-09 | 上汽通用五菱汽车股份有限公司 | A kind of back timber component |
| CN108791507A (en) * | 2017-04-28 | 2018-11-13 | 铃木株式会社 | Structure for vehicle body rear portion |
-
2006
- 2006-09-28 CN CNB2006101423121A patent/CN100519307C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103958329A (en) * | 2011-11-25 | 2014-07-30 | 本田技研工业株式会社 | Vehicle body superstructure |
| CN107554618A (en) * | 2016-07-01 | 2018-01-09 | 上汽通用五菱汽车股份有限公司 | A kind of back timber component |
| CN108791507A (en) * | 2017-04-28 | 2018-11-13 | 铃木株式会社 | Structure for vehicle body rear portion |
| CN108791507B (en) * | 2017-04-28 | 2021-01-12 | 铃木株式会社 | Vehicle body rear structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100519307C (en) | 2009-07-29 |
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