CN108357452A - Back buffer beam for automobile assembly and automobile - Google Patents
Back buffer beam for automobile assembly and automobile Download PDFInfo
- Publication number
- CN108357452A CN108357452A CN201810147311.9A CN201810147311A CN108357452A CN 108357452 A CN108357452 A CN 108357452A CN 201810147311 A CN201810147311 A CN 201810147311A CN 108357452 A CN108357452 A CN 108357452A
- Authority
- CN
- China
- Prior art keywords
- buffer beam
- back buffer
- inner panel
- absorption box
- outside plate
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
- B60D1/56—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting securing to the vehicle bumper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a kind of back buffer beam for automobile assemblies, including back buffer beam outside plate, back buffer beam outside plate is in the strip of both ends open, the section of back buffer beam outside plate is u-shaped, back buffer beam outside plate has the first end and second end being oppositely arranged, first end and second end is equipped with a back buffer beam inner panel, one back buffer beam energy-absorption box and a back buffer beam mounting plate, back buffer beam inner panel is mounted in the U-shaped cavity of back buffer beam outside plate, back buffer beam inner panel is mounted between back buffer beam outside plate and back buffer beam energy-absorption box, back buffer beam energy-absorption box is mounted between back buffer beam mounting plate and back buffer beam inner panel, second end is equipped with a car puller hook screwed pipe, car puller hook screwed pipe is connect with back buffer beam outside plate and positioned at the back buffer beam inner panel of second end respectively.The present invention can solve the problems, such as that complicated, anti-collision effect is general, more single using function.The invention also discloses the automobiles using above-mentioned back buffer beam for automobile assembly.
Description
Technical field
The present invention relates to technical field of automobile parts, more particularly to a kind of back buffer beam for automobile assembly and automobile.
Background technology
With the rapid development of auto industry, automobile has become people and indispensable one of the vehicles occurs.
During actual travel, the speed of the operation of automobile is usually than very fast, also getting worse the problem of car crass.Running car speed
Degree is very fast, it is possible that the phenomenon that knocks into the back, generates shock, personal safety of the meeting to user in knockout process to the rear portion of automobile
Certain threat is caused, because vehicle body has prodigious quality, this impact force is also very big, and is rigid collision, can be to multiplying
Certain injury is generated with the rear structure of vehicle, fuel system and other rear parts, influences long-time service and the people of passenger car
Safety.
Back buffer beam for automobile assembly is played as automobile safe component when rear-end collision occurs, and protects automotive safety
Effect can absorb collision energy as possible when low speed collision occurs for vehicle, ensure that main structure of vehicle body is without damage, with drop
Low maintenance cost；When high velocity impact occurs for vehicle, collision energy is absorbed using itself fully deformed, to protect fuel tank safe.
But traditional back buffer beam assembly generally existing anti-collision effect is general, uses the more single problem of function.
Invention content
An object of the present invention is to provide a kind of back buffer beam for automobile assemblies, and to solve, anti-collision effect is general, uses
The more single problem of function.
A kind of back buffer beam for automobile assembly, including back buffer beam outside plate, the back buffer beam outside plate are in the length of both ends open
The section of bar shaped, the back buffer beam outside plate is u-shaped, and the back buffer beam outside plate has the first end and second being oppositely arranged
End, the first end and the second end are equipped with a back buffer beam inner panel, a back buffer beam energy-absorption box and back buffer beam peace
Loading board, the back buffer beam inner panel are mounted in the U-shaped cavity of the back buffer beam outside plate, and the back buffer beam inner panel is mounted on
Between the back buffer beam outside plate and the back buffer beam energy-absorption box, the back buffer beam energy-absorption box is mounted on the back buffer beam
Between mounting plate and the back buffer beam inner panel, the second end is equipped with a car puller hook screwed pipe, the car puller hook screwed pipe point
It is not connect with the back buffer beam outside plate and positioned at the back buffer beam inner panel of the second end.
According to back buffer beam for automobile assembly proposed by the present invention, when a vehicle is in a collision, will make outside back buffer beam first
Plate deforms, and then impact force is transmitted on back buffer beam inner panel and energy-absorption box, and energy-absorption box is moulded by energy-absorbing muscle crumple
Property deformation, energy caused by automobile impacting is absorbed, and in the back buffer beam for automobile assembly, in addition to the suction of back buffer beam energy-absorption box
Outside capable of acting on, since the section of back buffer beam outside plate is in U fonts, and back buffer beam inner panel is mounted on the U-shaped of back buffer beam outside plate
In cavity, back buffer beam inner panel is enable to absorb the impact force due to being generated after body tail collision, further enhances energy-absorbing work
With promotion anti-collision effect；The back buffer beam for automobile assembly only includes back buffer beam outside plate, back buffer beam inner panel, back buffer beam and inhales
Energy box and back buffer beam mounting plate, structure are simpler, it is easier to assemble；In addition, passing through the second end in back buffer beam outside plate
Car puller hook screwed pipe is set, the back buffer beam for automobile assembly can be made to have the function of trailer, fully used back buffer beam assembly
Use space, optimize body structure, improve the functionality of back buffer beam for automobile assembly.
In addition, according to back buffer beam for automobile assembly provided by the invention, there can also be following additional technical characteristic：
Further, the back buffer beam inner panel includes inner panel main part, vertically prolongs along the both ends of the inner panel main part
The support portion of stretching and the welding edge vertically extended backwards to one end of the inner panel main part along the support portion, it is described
Welding edge is connect with the back buffer beam outside plate, and the inner panel main part is connect with the back buffer beam energy-absorption box.
Further, the second end is equipped with first through hole, and the inner panel main part for being located at the second end is set to the
The position of two through-holes, the first through hole and second through-hole corresponds to, and the car puller hook screwed pipe passes through the first through hole
With second through-hole.
Further, the back buffer beam energy-absorption box includes under back buffer beam energy-absorption box upper plate and back buffer beam energy-absorption box
The both ends of plate, the back buffer beam energy-absorption box upper plate connect with the back buffer beam mounting plate and the back buffer beam inner panel respectively
It connects, and the both ends of the back buffer beam energy-absorption box lower plate connect with the back buffer beam mounting plate and the back buffer beam inner panel respectively
It connects.
Further, the back buffer beam mounting plate includes installing main board portion and the curving along the installation main board portion
The side flanging extended, the side flanging and the installation main board portion are connect with the back buffer beam energy-absorption box.
Further, the side flanging and the installation main board portion are connected by freezing with the back buffer beam energy-absorption box respectively
It connects.
Further, the installation main board portion plays muscle and several second lightening holes equipped with several.
Further, several the first lightening holes are opened up on the back buffer beam outside plate.
Further, the car puller hook screwed pipe is by freezing with the back buffer beam outside plate and positioned at the second end
The back buffer beam inner panel connection, the back buffer beam mounting plate are connect by freezing with the back buffer beam energy-absorption box.
It is another object of the present invention to propose a kind of automobile using above-mentioned back buffer beam for automobile assembly.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the configuration schematic diagram of the back buffer beam for automobile assembly of first embodiment of the invention；
Fig. 2 is the combining structure schematic diagram of the back buffer beam for automobile assembly of first embodiment of the invention；
Fig. 3 is the structural schematic diagram of back buffer beam inner panel in Fig. 1；
Fig. 4 is the structural schematic diagram of back buffer beam mounting plate in Fig. 1；
Fig. 5 is the partial sectional view of the second end of back buffer beam outside plate in Fig. 2.
Specific implementation mode
To keep objects, features and advantages of the present invention more obvious and easy to understand, below in conjunction with the accompanying drawings to the tool of the present invention
Body embodiment is described in detail.Several embodiments of the present invention are given in attached drawing.But the present invention can be with many not
With form realize, however it is not limited to embodiment described herein.Make to this on the contrary, purpose of providing these embodiments is
The disclosure of invention is more thorough and comprehensive.
It should be noted that when element is referred to as " being fixedly arranged on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side ", "upper", "lower" and similar statement for illustrative purposes only, do not indicate or imply the indicated device or member
Part must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connects, and can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.Term " and or " used herein include the arbitrary of one or more relevant Listed Items and
All combinations.
Please refer to Fig.1 the back buffer beam for automobile assembly proposed to Fig. 5, the first embodiment of the present invention, including back buffer beam
Outside plate 10, the back buffer beam outside plate 10 are in the strip of both ends open, and the section of the back buffer beam outside plate is u-shaped, after
Steel Sheet may be used in collision prevention girders outside plate 10, can specifically be shaped by processes such as blank-forming, punching, deburrings.Tool
When body is implemented, notch can be locally dug at the both ends of back buffer beam outside plate 10, to provide the installation space of back buffer beam assembly.
The back buffer beam outside plate 10 has the first end 101 being oppositely arranged and second end 102,101 He of the first end
The second end 102 is equipped with a back buffer beam inner panel 20, a back buffer beam energy-absorption box 30 and a back buffer beam mounting plate 40.
The back buffer beam inner panel 20 is mounted in the U-shaped cavity of the back buffer beam outside plate 10, in the back buffer beam
Plate 20 is mounted between the back buffer beam outside plate 10 and the back buffer beam energy-absorption box 30.Back buffer beam inner panel 20 can be through falling
The processes such as material, punching, flange shape.Back buffer beam outside plate 10 passes through spot welded together with back buffer beam inner panel 20.
The back buffer beam energy-absorption box 30 be mounted on the back buffer beam mounting plate 40 and the back buffer beam inner panel 20 it
Between, specifically, the back buffer beam mounting plate 40 can be connect by freezing with the back buffer beam energy-absorption box 30.Back buffer beam
Energy-absorption box 30, back buffer beam mounting plate 40 can be shaped through processes such as blanking, shaping and piercing die and flange.
The second end 102 be equipped with a car puller hook screwed pipe 50, the car puller hook screwed pipe 50 respectively with the rear anti-crash
Beam outside plate 10 and positioned at the second end 102 the back buffer beam inner panel 20 connect.Specifically, the car puller hook screwed pipe 50
It can be connect with the back buffer beam outside plate 10 and positioned at the back buffer beam inner panel 20 of the second end 102 by freezing.
Car puller hook screwed pipe 50 can be through blanking, extruding and cutting, the forming of the processes such as tapping.
The back buffer beam assembly quickly can complete positioning in vehicle body by the installation stud (not shown) of squab panel and lead
To being then spirally connected fixed on vehicle body in squab panel by back buffer beam mounting plate 40.
In addition, in order to mitigate weight, complete-vehicle oil consumption is reduced, several the first losss of weight are opened up on the back buffer beam outside plate 10
Hole 103.
The back buffer beam inner panel 20 includes inner panel main part 201, is extended vertically along the both ends of the inner panel main part 201
The support portion 202 gone out and the welding vertically extended backwards to one end of the inner panel main part 201 along the support portion 202
Side 203, the welding edge 203 are connect with the back buffer beam outside plate 10, and the inner panel main part 201 is inhaled with the back buffer beam
It can the connection of box 30.
The second end 102 is equipped with first through hole 1021, and the inner panel main part 201 positioned at the second end 102 is set
In the second through-hole 2011, the position of the first through hole 1021 and second through-hole 2011 corresponds to, the car puller hook screwed pipe
50 pass through the first through hole 1021 and second through-hole 2011, the first through hole 1021 and second through-hole 2011
Aperture can be equal, and more than the diameter of car puller hook screwed pipe 50.
The back buffer beam energy-absorption box 30 includes back buffer beam energy-absorption box upper plate 301 and back buffer beam energy-absorption box lower plate 302,
The both ends of the back buffer beam energy-absorption box upper plate 301 respectively with the back buffer beam mounting plate 40 and the back buffer beam inner panel 20
Connection, and the both ends of the back buffer beam energy-absorption box lower plate 302 respectively with the back buffer beam mounting plate 40 and the rear anti-crash
Beam inner panel 20 connects.The back buffer beam energy-absorption box 30 is used to absorb the energy generated when collision.
The back buffer beam mounting plate 40 includes installation main board portion 401 and the curving along the installation main board portion 401
The side flanging 402 extended, the side flanging 402 and the installation main board portion 401 connect with the back buffer beam energy-absorption box 30
It connects.Specifically, the side flanging 402 and the installation main board portion 401 can be respectively by freezing and the back buffer beam energy-absorbing
Box 30 connect, can optimize technique structure, reduce assembly difficulty.
In the present embodiment, the installation main board portion 401 plays muscle 403 equipped with several, to improve back buffer beam mounting plate
40 intensity, while the installation main board portion 401 is equipped with several second lightening holes 404, to mitigate weight.
According to back buffer beam for automobile assembly proposed by the present invention, when a vehicle is in a collision, will make outside back buffer beam first
Plate 10 deforms, and then impact force is transmitted on back buffer beam inner panel 20 and back buffer beam energy-absorption box 30, back buffer beam energy-absorbing
Box 30 is plastically deformed by energy-absorbing muscle crumple, absorbs energy caused by automobile impacting, and the back buffer beam for automobile assembly
In, other than the energy-absorbing function of back buffer beam energy-absorption box 30, since the section of back buffer beam outside plate 10 is u-shaped, and rear anti-crash
Beam inner panel 20 is mounted in the U-shaped cavity of back buffer beam outside plate 10, and back buffer beam inner panel 20 is enable to absorb due to body tail
The impact force generated after collision further enhances energy-absorbing function, promotes anti-collision effect；After the back buffer beam for automobile assembly only includes
Collision prevention girders outside plate 10, back buffer beam inner panel 20, back buffer beam energy-absorption box 30 and back buffer beam mounting plate 40, structure is simpler,
It is easier to assemble；In addition, car puller hook screwed pipe 50 is arranged by the second end 102 in back buffer beam outside plate 10, the vapour can be made
Vehicle back buffer beam assembly has the function of trailer, has fully used the use space of back buffer beam assembly, has optimized body structure, has carried
The functionality of back buffer beam for automobile assembly is risen.
The second embodiment of the present invention proposes that a kind of automobile, the automobile include at least the back buffer beam for automobile of first embodiment
Assembly, it is more preferable and simple in structure using the anti-rearward collision effect of the automobile of this kind of back buffer beam for automobile assembly, it is easily assembled, work(
Energy property is stronger.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of back buffer beam for automobile assembly, including back buffer beam outside plate, which is characterized in that the back buffer beam outside plate is in both ends
The section of the strip of opening, the back buffer beam outside plate is u-shaped, and the back buffer beam outside plate has first be oppositely arranged
After end and second end, the first end and the second end are equipped with a back buffer beam inner panel, a back buffer beam energy-absorption box and one
Collision prevention girders mounting plate, the back buffer beam inner panel is mounted in the U-shaped cavity of the back buffer beam outside plate, in the back buffer beam
Plate is mounted between the back buffer beam outside plate and the back buffer beam energy-absorption box, and the back buffer beam energy-absorption box is mounted on described
Between back buffer beam mounting plate and the back buffer beam inner panel, the second end is equipped with a car puller hook screwed pipe, the car puller hook
Screwed pipe is connect with the back buffer beam outside plate and positioned at the back buffer beam inner panel of the second end respectively.
2. back buffer beam for automobile assembly according to claim 1, which is characterized in that the back buffer beam inner panel includes inner panel
Main part, the support portion vertically extended along the both ends of the inner panel main part and along the support portion backwards to the inner panel
The welding edge that one end of main part vertically extends, the welding edge are connect with the back buffer beam outside plate, the interior plate body
Portion is connect with the back buffer beam energy-absorption box.
3. back buffer beam for automobile assembly according to claim 2, which is characterized in that the second end is equipped with first through hole,
The inner panel main part positioned at the second end is set to the second through-hole, the position pair of the first through hole and second through-hole
It answers, the car puller hook screwed pipe passes through the first through hole and second through-hole.
4. back buffer beam for automobile assembly according to claim 1, which is characterized in that after the back buffer beam energy-absorption box includes
Anti-collision beam energy absorbing box upper plate and back buffer beam energy-absorption box lower plate, the both ends of the back buffer beam energy-absorption box upper plate respectively with it is described after
Collision prevention girders mounting plate is connected with the back buffer beam inner panel, and the both ends of the back buffer beam energy-absorption box lower plate respectively with it is described after
Collision prevention girders mounting plate is connected with the back buffer beam inner panel.
5. back buffer beam for automobile assembly according to claim 1, which is characterized in that the back buffer beam mounting plate includes peace
Dress main board portion and the side flanging extended along the curving for installing main board portion, the side flanging and the installation main board portion
It is connect with the back buffer beam energy-absorption box.
6. back buffer beam for automobile assembly according to claim 5, which is characterized in that the side flanging and the installation mainboard
Portion is connect by freezing with the back buffer beam energy-absorption box respectively.
7. back buffer beam for automobile assembly according to claim 5, which is characterized in that the installation main board portion is equipped with several
A muscle and several second lightening holes.
8. back buffer beam for automobile assembly according to claim 1, which is characterized in that if being opened up on the back buffer beam outside plate
Dry the first lightening hole.
9. back buffer beam for automobile assembly according to claim 1, which is characterized in that the car puller hook screwed pipe is by freezing
It is connect with the back buffer beam outside plate and positioned at the back buffer beam inner panel of the second end, the back buffer beam mounting plate is logical
Penetrator is connect with the back buffer beam energy-absorption box.
10. a kind of automobile, which is characterized in that including the back buffer beam for automobile assembly described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147311.9A CN108357452A (en) | 2018-02-12 | 2018-02-12 | Back buffer beam for automobile assembly and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147311.9A CN108357452A (en) | 2018-02-12 | 2018-02-12 | Back buffer beam for automobile assembly and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108357452A true CN108357452A (en) | 2018-08-03 |
Family
ID=63002381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810147311.9A Pending CN108357452A (en) | 2018-02-12 | 2018-02-12 | Back buffer beam for automobile assembly and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108357452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110341630A (en) * | 2019-07-17 | 2019-10-18 | 上海英汇科技发展有限公司 | Aluminium alloy collision prevention girders |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522969A (en) * | 2013-09-11 | 2014-01-22 | 奇昊汽车系统（苏州）有限公司 | Novel aluminum alloy car anti-collision beam |
| CN203854596U (en) * | 2014-03-31 | 2014-10-01 | 长城汽车股份有限公司 | Front anti-collision beam of automobile |
| CN204161278U (en) * | 2014-10-23 | 2015-02-18 | 东风汽车公司 | A kind of front anti-collision beam structure of vehicle |
| CN204998469U (en) * | 2015-05-18 | 2016-01-27 | 绵阳华瑞汽车有限公司 | Rear anti -collision beam assembly of automobile |
| CN206841358U (en) * | 2017-04-26 | 2018-01-05 | 北京新能源汽车股份有限公司 | Automobile and its front anti-collision beam |
-
2018
- 2018-02-12 CN CN201810147311.9A patent/CN108357452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522969A (en) * | 2013-09-11 | 2014-01-22 | 奇昊汽车系统（苏州）有限公司 | Novel aluminum alloy car anti-collision beam |
| CN203854596U (en) * | 2014-03-31 | 2014-10-01 | 长城汽车股份有限公司 | Front anti-collision beam of automobile |
| CN204161278U (en) * | 2014-10-23 | 2015-02-18 | 东风汽车公司 | A kind of front anti-collision beam structure of vehicle |
| CN204998469U (en) * | 2015-05-18 | 2016-01-27 | 绵阳华瑞汽车有限公司 | Rear anti -collision beam assembly of automobile |
| CN206841358U (en) * | 2017-04-26 | 2018-01-05 | 北京新能源汽车股份有限公司 | Automobile and its front anti-collision beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110341630A (en) * | 2019-07-17 | 2019-10-18 | 上海英汇科技发展有限公司 | Aluminium alloy collision prevention girders |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180803 |
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| RJ01 | Rejection of invention patent application after publication |