CN1861460A - Vehicle floor structure - Google Patents
Vehicle floor structure Download PDFInfo
- Publication number
- CN1861460A CN1861460A CNA2006100682877A CN200610068287A CN1861460A CN 1861460 A CN1861460 A CN 1861460A CN A2006100682877 A CNA2006100682877 A CN A2006100682877A CN 200610068287 A CN200610068287 A CN 200610068287A CN 1861460 A CN1861460 A CN 1861460A
- Authority
- CN
- China
- Prior art keywords
- crushed element
- vehicle body
- floor
- body floor
- floor structure
- 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
Links
- 230000002787 reinforcement Effects 0.000 claims description 31
- 230000005764 inhibitory process Effects 0.000 claims description 12
- 210000003127 knee Anatomy 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 230000001629 suppression Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 11
- 230000035939 shock Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The floor construction of a vehicle has a reinforcing component (13) which is installed on a tunnel section (10) in such a way that at least a part of it is located in front of a transverse component (6) which is connected to an intermediate section of the floor plate. The reinforcing component has a deformation suppression section (13a), with a basically U-shaped cross section, lying upon the tunnel section, and a deformation support section (13b) which has a flat shape and extends forwards from a front end of the deformation suppression section along the upper wall region.
Description
Technical field
The present invention relates to a kind ofly have the vehicle body floor structure of the channel part that projects upwards in the transverse center portion on floor, relate more specifically to a kind of additional strengthening of this channel part, it attempts to realize the improvement of shock absorbing capability when vehicle is collided.
Background technology
In automobile, adopt certain structure to prevent that passenger cabin is subjected to because the influence of the impact that vehicle collision produces.In addition, if the size of automobile is less, its from body structure portion to dash shield (cowl board, dash panel) longitudinal length is shorter relatively, so, when being subjected to head-on crash, can not will be passed to and be positioned at than dash shield more on a part of floor at rear being positioned at the impact that more absorbs on a part of vehicle body in the place ahead than dash shield.
Then, such as in JP-A-5-69753, in order to increase the shock proof rigidity in floor, on the channel part on floor, be furnished with reinforcement (transmission cover), and the whole circumference along the reinforcement outer circular edge forms flange, the flange of Xing Chenging is to be welded to channel part in the spot welding mode like this, improves the rigidity of channel part.
By the way, under the situation of the structure that adopts above-mentioned correlation technique, wherein the flange portion of reinforcement is that whole circumference along channel part is welded to channel part in the spot welding mode, input when collision, in fact can be passed to the channel part of firm reinforcement, thereby cause that channel part does not fully show the worry of impact absorption function.
Summary of the invention
The present invention considers that the situation of correlation technique implements, and the object of the present invention is to provide a kind of vehicle body floor structure, and this vehicle body floor structure can be strengthened the shock absorbing capability of the channel part that shows when vehicle is collided.
In order to achieve the above object, according to a first aspect of the present invention, a kind of vehicle body floor structure is provided, in this structure, transverse center portion on the floor is formed with the channel part that projects upwards, the lower edge that defines the dash shield of machinery space and passenger cabin partly is connected to the lead edge portion on floor, and the crossbeam of horizontal expansion is connected to the longitudinal middle part on floor, wherein, reinforcement is arranged on the floor, make to the small part reinforcement and be positioned at the position more forward than crossbeam, reinforcement comprises and suppresses crushed element and plate shaped promotion crushed element, and the cross-sectional plane that suppresses crushed element is the U type substantially, and this inhibition crushed element abuts against on the channel part from upper wall portion to its vertical bight, vertically extend along the lateral edges of upper wall portion in the bight, promotes crushed element to extend forward along upper wall portion from the front end that suppresses crushed element.
According to a second aspect of the present invention, provide a kind of as the described vehicle body floor structure of first aspect present invention, wherein, the rocker panel of longitudinal extension is connected respectively to the vertical side of the edge part on floor, and, the inhibition crushed element of reinforcement and promote boundary member between the crushed element to be positioned at position, this straight line near straight line connect be positioned at the floor in a lateral direction floor one side the floor leading section and be positioned at floor end one side of the crossbeam of floor opposite side in a lateral direction.
Floor panel structure according to first aspect present invention, because it is U-shaped substantially that reinforcement includes cross-sectional plane, be adjacent to the inhibition crushed element that (extends) to vertical bight from upper wall portion of channel part and from suppressing the plate shaped promotion crushed element that the crushed element front end extends forward along the upper wall side, when the impulsive force that is produced by the vehicle central collision is passed to channel part, the promotion crushed element that is deformed of the impulsive force of Chuan Diing absorbs like this, then, so can not be promoted the part impulsive force of crushed element absorption to be passed to crossbeam by the inhibition crushed element absorbs, thereby can increase the impulsive force absorptive character of channel part, therefore can avoid the increase of body distortion.
In a second aspect of the present invention, because the boundary member between the inhibition crushed element of reinforcement and the promotion crushed element is made as the position that is positioned near straight line, this straight line connect be positioned at the floor in a lateral direction a side the floor leading section and be positioned at floor end one side of the crossbeam of opposite side in a lateral direction, so distortion and strain that the skew load input that can suppress to cause when vehicle is subjected to offset collisions produces, and can prevent spot welded disconnection on the rocker panel.
Just, find by the crash tests that is undertaken by the contriver, under the situation of offset collisions, since be input to one in the rocker panel impulsive force and easily on the described straight line,, and owing to the impulsive force that is input to like this in this rocker panel is easy to generate spot welded disconnection on the rocker panel especially near producing distortion and the strain that causes by shear load on the position of channel part.Then, in the present invention, be arranged on because the skew load input that offset collisions produces and deforming easily and the position of strain because the inhibition crushed element of high rigidity, perhaps be set in place on the close linear position of channel part, so can suppress the generation of strain, thereby can prevent the increase of body distortion.In addition, because can suppress to have on it rocker panel of skew load input to move backward, so can prevent spot welded disconnection on the rocker panel.
Description of drawings
Fig. 1 is the birds-eye view according to the automobile front floor of the embodiment of the invention;
Fig. 2 is the transparent view on preceding floor;
Fig. 3 is the cross-sectional elevational view (along the cross-sectional plane of Fig. 2 center line III-III) of the channel part on preceding floor;
Fig. 4 is the side cross-sectional view (along the profile of Fig. 2 center line IV-IV) of channel part;
Fig. 5 is the birds-eye view of embodiment reinforcement.
The specific embodiment
Hereinafter, will be based on the description of drawings embodiments of the invention.
Fig. 1 to 5 is for explaining the figure according to the vehicle body floor structure of the embodiment of the invention, wherein, Fig. 1 and 2 is respectively the birds-eye view and the transparent view of automobile front floor, Fig. 3 is the cross-sectional elevational view (along the cross-sectional plane of Fig. 2 center line III-III) of the channel part on preceding floor, Fig. 4 is the side cross-sectional view (along the profile of Fig. 2 center line IV-IV) of channel part, and Fig. 5 is the birds-eye view of reinforcement.
In the drawings, Reference numeral 1 is represented the preceding floor of automobile, and the structure on preceding floor is as follows.Floor 3 is arranged on the latter half of curb girder 2,2 of left and right sides longitudinal extension, dash shield 4 vertical extent and defined machinery space A and passenger cabin B, and the lower edge part 4a of dash shield 4 is connected to the lead edge portion 3a on floor 3 with welding manner.In addition, be connected to floor 3 with welding manner on the position of the crossbeam 6 of horizontal expansion after leaning on than dash shield 4.In addition, the rocker panel 5,5 of longitudinal extension is connected respectively to left and right edges part 3b, the 3b on floor 3 with welding manner.
The left and right end portions of crossbeam 6 is connected to rocker panel 5, and the rearward end of left and right sides curb girder 2,2 is connected to crossbeam 6.In addition, the leading section of left and right sides rocker panel 5 is connected to curb girder 2 by suspension upright not shown in the figures.By with outside plate 5a and inner panel 5b and be inserted into rocker panel reinforcement 5c weld together between them, rocker panel forms the tubulose that corner angle are arranged with closed cross-section.
Seat frame supports the seat on it, and is not shown in the figures, and seat frame is installed on the crossbeam 6, and passenger's pin is placed on the position on a part of floor 3 more forward than crossbeam 6.
The rectangle reinforcement 13 of longitudinal extension is arranged on the lower surface of channel part 10 upper wall portion.Gear shift bowl cover not shown in the figures passes through hole 14, through hole 14 formation of on reinforcement 13 and upper wall portion 10b, punching, and gear-shift lever is supported in the through hole 14, the vertical and horizontal swing by the carriage that is fixed on through hole 14 peripheral parts thus.Note, in turning to pillar gear shift type vehicle, do not need to form such through hole.
In addition, reinforcement 13 comprises inhibition crushed element 13a and plate shaped promotion crushed element 13b.The cross-sectional plane that suppresses crushed element 13a is the U type substantially, suppresses crushed element 13a and abuts against on the channel part 10 to bight, left and right sides 10b ' from upper wall portion 10b, and bight, left and right sides 10b ' vertically is shaped along the left and right sides side of upper wall portion 10b.Promote crushed element 13b to extend forward along upper wall portion 10b from the front end face that suppresses crushed element 13a.
Concrete, suppress crushed element 13a and have planar section 13c and flange portion 13d, 13d, planar section 13c abuts against on the upper wall portion 10b, flange portion 13d, 13d are bent downwardly from planar section 13c left and right sides edge bight, left and right sides 10b ', and the leading section of planar section 13c, middle part and rearward end (with reference in figure 1 and 5 with the point of * mark) spot weld upper wall portion 10b respectively.Promote crushed element 13b to extend forward, spot weld on the upper wall portion 10b at the leading section that the promotes crushed element 13b point of * mark (in) with reference to figure 1 and 5 from the planar section 13c that suppresses crushed element 13a.In addition, suppress crushed element 13a longitudinal size and be set at three times of about promotion crushed element 13b.
Transmitted by the input that vehicle central collision (overlapping fully) produces, be distributed to rocker panel 5 and channel component 7 from left and right sides curb girder 2,2, and be delivered to channel part 10.The local deformation of channel part 10 and promote crushed element 13b until absorbed the impulsive force that major part is delivered to channel part 10 as the distortion of the boundary member 13e of breaking-down point, remaining then impulsive force is delivered to crossbeam 6 by suppressing crushed element 13a, and, further be delivered to body tail here from laterally separating.
More specific description, substantially be U-shaped, extend to the inhibition crushed element 13a of bight, left and right sides 10b ' and from suppressing the plate shaped promotion crushed element 13b that crushed element 13a front end extends forward because reinforcement 13 includes cross-sectional plane from the upper wall portion 10b of channel part 10, so when the impulsive force that is produced by the vehicle central collision is delivered to channel part 10, the impulsive force of Chuan Diing absorbs by promoting crushed element 13b like this, promotes crushed element 13b to be out of shape up to boundary member 13e with channel part 10.Then, channel part 10 that can not be out of shape like this and the part impulsive force that promotes crushed element 13b to absorb are delivered to crossbeam 6 by inhibition crushed element 13a and absorb, thereby can increase the impulsive force absorptive character of channel part 10, the increase of body distortion amount in the time of therefore vehicle frontal collision can being avoided.
On the other hand, transmitted, from being distributed to rocker panel 5 and channel component 7 such as right side beam 2, and be delivered to channel part 10 by rocker panel 5 and channel component 7 by the input that vehicle shift collision produces.Then, this causes the rocker panel 5 of right-hand side to move the danger that has distortion or strain to increase backward.
In the present embodiment, because suppress crushed element 13a and promote the boundary member 13e between the crushed element 13b to be made as the position that is positioned near straight line a, straight line a connects the leading section 3c on the floor 3 that is positioned at floor 3 horizontal left-hand sides and is positioned at end one side of the crossbeam 6 of floor 3 horizontal right-hand sides, so occur in the distortion on the floor 3 on the straight line a in the time of can suppressing offset collisions, and can prevent spot welded disconnection on the rocker panel 5.
Just, under the situation of offset collisions, because the impulsive force that collision produces input is delivered to such as right-hand side rocker panel 5, make the position between the left and right sides rocker panel 5 be easy to produce vertical misalignment, also for this reason, cause floor 3 that the danger of distortion is in the vertical arranged, perhaps the point on the right-hand side rocker panel 5 is welded with open circuited danger.In order to overcome such danger, in inventive embodiments, be arranged on because the skew load input that offset collisions produces and deforming easily or the position of strain because boundary member 13e, perhaps be arranged on the position that is positioned on the channel part 10 near straight line a, suppress distortion or strain so suppress crushed element 13a, thereby may avoid the increase of the body distortion on the rocker panel 5 and spot welding is open circuited increases.
Here, the rigidity of the material of the inhibition crushed element of reinforcement 13 can be higher than the material stiffness that promotes crushed element 13b, and the thickness that perhaps suppresses crushed element 13a can be greater than the thickness that promotes crushed element 13b.Adopt under the situation of said structure at reinforcement 13, can control anti-collision area with higher precision.
In addition, in inventive embodiments, suppress crushed element 13a and promote crushed element 13b by being provided with, reinforcement 13 not only can increase the support stiffness of gear-shift lever, can also strengthen the shock absorbing capability of channel part.Accordingly, the problem that does not have the increase of cost and weight.
In addition, consider the influence of complete overlapping collision and offset collisions, by the boundary member 13e of reinforcement 13 is set for various embodiments, the scope of the embodiment that the present invention can use is expanded.
Claims (12)
1. vehicle body floor structure comprises:
The floor, this floor comprises:
First passage part, this first passage partly are arranged on the floor perpendicular to the central part on the first direction of axletree and project upwards, have upper wall portion and on first direction from bight that upper wall portion is extended; And
The front portion, this front portion has the lead edge portion, and the lower edge that defines the dash shield of machinery space and passenger cabin partly is connected to described lead edge portion; And
Crossbeam, this crossbeam are connected to the floor perpendicular to the middle part on the second direction of first direction, and extend to first direction, it is characterized in that:
Vehicle body floor structure also comprises reinforcement, and this reinforcement is arranged on the first passage part, make at least a portion of reinforcement be positioned at the place ahead of crossbeam, and this reinforcement comprises:
Suppress crushed element, this inhibitions crushed element has substantially for the cross-sectional plane of U type and abuts against first passage partly to be gone up from upper wall portion to the bight; And
Promote crushed element, this promotes that crushed element is plate shaped substantially, and extends forward along upper wall portion from the front end that suppresses crushed element.
2. vehicle body floor structure as claimed in claim 1 is characterized in that:
Floor panel structure also comprises rocker panel, and each rocker panel is connected to the lateral edge portions on floor and extends upward in second party on first direction, and
Suppress crushed element and promote the boundary member between the crushed element to be positioned at the position of close straight line, this straight line is connected floor leading section that is positioned at floor one side on the first direction and the end that is positioned at the crossbeam of floor opposite side.
3. vehicle body floor structure as claimed in claim 1 or 2 is characterized in that:
The floor also comprises the ground plate portion, and these ground plate portions are arranged on the both sides of first passage part, and
The first passage part also comprises sidewall, and each sidewall extends downwards from the bight and is connected to the ground plate portion at its front end, thereby forms cross-sectional plane osed top second channel part.
4. vehicle body floor structure as claimed in claim 1 or 2 is characterized in that:
Vehicle body floor structure also comprises the curb girder that is arranged under the floor,
The front end and the curb girder of second channel part are connected to torque box, and
Torque box and floor are attached to dash shield.
5. vehicle body floor structure as claimed in claim 1 or 2 is characterized in that: reinforcement is used to increase the support stiffness of gear-shift lever.
6. vehicle body floor structure as claimed in claim 1 or 2 is characterized in that:
Seat frame is installed in the front chair that supports on the crossbeam on it, and
Vehicle body floor structure is arranged such that boundary member is positioned at the position corresponding to the knee that is sitting in the passenger on the front chair, and described front portion is positioned at the position corresponding to passenger's pin.
7. vehicle body floor structure as claimed in claim 1 or 2 is characterized in that:
Suppress the length setting of crushed element on second direction for being three times of length that promote crushed element substantially.
8. vehicle body floor structure as claimed in claim 1 or 2 is characterized in that:
The rigidity that suppresses crushed element is set at and is higher than the rigidity that promotes crushed element.
9. vehicle body floor structure as claimed in claim 1 or 2 is characterized in that:
The thickness that suppresses crushed element is greater than the thickness that promotes crushed element.
10. vehicle body floor structure as claimed in claim 4 is characterized in that:
Torque box has the basic L shaped part that is, this part couples together the front end of second channel part and the middle part of curb girder.
11., it is characterized in that as claim 1,2 or 10 described vehicle body floor structures:
The planar section that suppresses crushed element is spoted weld the upper wall portion of first passage part.
12., it is characterized in that as claim 1,2 or 10 described vehicle body floor structures:
To promote crushed element to spot weld the upper wall portion of first passage part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-137374 | 2005-05-10 | ||
| JP2005137374 | 2005-05-10 | ||
| JP2005137374A JP4481872B2 (en) | 2005-05-10 | 2005-05-10 | Vehicle floor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1861460A true CN1861460A (en) | 2006-11-15 |
| CN1861460B CN1861460B (en) | 2010-05-26 |
Family
ID=37295560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100682877A Expired - Fee Related CN1861460B (en) | 2005-05-10 | 2006-03-27 | Vehicle floor structure |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4481872B2 (en) |
| CN (1) | CN1861460B (en) |
| DE (1) | DE102006011931A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643087B (en) * | 2008-08-04 | 2011-11-23 | F·波尔希名誉工学博士公司 | Vehicle body with a floor-side reinforcement |
| CN101674971B (en) * | 2007-04-04 | 2011-11-30 | 雷诺股份公司 | Underframe for automobile |
| CN102390433A (en) * | 2011-09-30 | 2012-03-28 | 重庆长安汽车股份有限公司 | Collision energy absorption structure of automobile |
| CN106364560A (en) * | 2015-07-23 | 2017-02-01 | 北汽福田汽车股份有限公司 | Longitudinal beam structure and vehicle |
| CN108569340A (en) * | 2017-03-07 | 2018-09-25 | 福特全球技术公司 | Inflatable channel strengthening portion |
| CN113212563A (en) * | 2020-02-05 | 2021-08-06 | 丰田自动车株式会社 | Vehicle structure |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4818190B2 (en) * | 2007-04-20 | 2011-11-16 | 本田技研工業株式会社 | Vehicle floor structure |
| JP4994120B2 (en) * | 2007-06-06 | 2012-08-08 | 株式会社小松製作所 | Cab floor |
| JP5180877B2 (en) * | 2009-03-02 | 2013-04-10 | 本田技研工業株式会社 | Body frame structure |
| DE102009042187A1 (en) * | 2009-09-18 | 2011-03-24 | Audi Ag | Vehicle body structure in the floor area of the occupant cabin and associated production process |
| JP5842779B2 (en) * | 2012-10-09 | 2016-01-13 | トヨタ自動車株式会社 | Vehicle floor structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0256783U (en) * | 1988-10-19 | 1990-04-24 | ||
| JPH0256784U (en) * | 1988-10-19 | 1990-04-24 | ||
| JPH08119151A (en) * | 1994-10-26 | 1996-05-14 | Toyota Motor Corp | Floor structure for automobile |
| JP2002302071A (en) * | 2001-04-06 | 2002-10-15 | Honda Motor Co Ltd | Floor panel for vehicle |
| JP4168833B2 (en) * | 2003-05-29 | 2008-10-22 | スズキ株式会社 | Floor panel reinforcement structure |
| JP2005067491A (en) * | 2003-08-26 | 2005-03-17 | Honda Motor Co Ltd | Vehicle body structure |
| US7104596B2 (en) * | 2003-10-16 | 2006-09-12 | Honda Motor Co., Ltd. | Vehicle body structure |
-
2005
- 2005-05-10 JP JP2005137374A patent/JP4481872B2/en not_active Expired - Fee Related
-
2006
- 2006-03-15 DE DE200610011931 patent/DE102006011931A1/en not_active Withdrawn
- 2006-03-27 CN CN2006100682877A patent/CN1861460B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101674971B (en) * | 2007-04-04 | 2011-11-30 | 雷诺股份公司 | Underframe for automobile |
| CN101643087B (en) * | 2008-08-04 | 2011-11-23 | F·波尔希名誉工学博士公司 | Vehicle body with a floor-side reinforcement |
| CN102390433A (en) * | 2011-09-30 | 2012-03-28 | 重庆长安汽车股份有限公司 | Collision energy absorption structure of automobile |
| CN106364560A (en) * | 2015-07-23 | 2017-02-01 | 北汽福田汽车股份有限公司 | Longitudinal beam structure and vehicle |
| CN108569340A (en) * | 2017-03-07 | 2018-09-25 | 福特全球技术公司 | Inflatable channel strengthening portion |
| CN108569340B (en) * | 2017-03-07 | 2022-07-01 | 福特全球技术公司 | Inflatable channel reinforcement |
| CN113212563A (en) * | 2020-02-05 | 2021-08-06 | 丰田自动车株式会社 | Vehicle structure |
| CN113212563B (en) * | 2020-02-05 | 2023-04-18 | 丰田自动车株式会社 | Vehicle structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1861460B (en) | 2010-05-26 |
| JP4481872B2 (en) | 2010-06-16 |
| DE102006011931A1 (en) | 2006-11-16 |
| JP2006315440A (en) | 2006-11-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120327 |