CN111038598A - Hair cover inner plate structure - Google Patents
Hair cover inner plate structure Download PDFInfo
- Publication number
- CN111038598A CN111038598A CN201911410033.2A CN201911410033A CN111038598A CN 111038598 A CN111038598 A CN 111038598A CN 201911410033 A CN201911410033 A CN 201911410033A CN 111038598 A CN111038598 A CN 111038598A
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- CN
- China
- Prior art keywords
- rib
- transverse
- inner plate
- vertical
- hair cover
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Classifications
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- 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
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
-
- 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
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/12—Parts or details thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a hair cover inner plate structure which comprises a hair cover inner plate body, wherein a rib beam and a protruding structure which is internally enclosed to form a rib beam installation space are arranged on the hair cover inner plate body, and a buffer hole for absorbing energy is formed in the protruding structure. The buffering holes of the inner plate of the trigger cover can play a good role in buffering and energy absorption when the head of a pedestrian collides the trigger cover, and the degree of injury to the head of the pedestrian is reduced.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to an inner plate structure of an engine cover.
Background
The engine cover is an important structural part on an automobile, and the design of the engine cover not only needs to meet the requirements of rigidity, mode, dent resistance, mounting point strength and slamming, but also needs to meet stamping feasibility and transportation feasibility. Since the C-NCAP introduces a pedestrian protection evaluation system in 2018, the requirement of the C-NCAP on pedestrian protection is increased by covering on the premise of not changing other performance target values. It is worth mentioning that the pedestrian protection performance and other performances of the hair cover, in particular the dent resistance performance, are contradictory, and the balancing difficulty is particularly great. The existing caps on the market are too hard to meet the dent resistance requirement; or the soft material is made to meet the requirement of a pedestrian protection target; hair caps with both properties are more difficult to obtain.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an inner plate structure of a hair cover, and aims to be beneficial to pedestrian protection.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a send out and cover inner panel structure, is including sending out and covering the inner panel body, send out and cover the protruding structure that is equipped with muscle roof beam and inside and encloses and close formation muscle roof beam installation space on the inner panel body, protruding structural being equipped with the buffer hole that is used for the energy absorption.
The buffer hole is a plurality of, and a plurality of buffer holes distribute on protruding structure's circumference avris.
Fourteen buffer holes are formed in the rear end of the hair cover inner plate, two buffer holes are formed in the front end of the hair cover inner plate, and four buffer holes are formed in the left end and the right end of the hair cover inner plate respectively.
The corner of the protruding structure, which is close to the hinge mounting point, is provided with a buffer hole.
The buffer holes are arranged on three surfaces formed by the protruding structures in a crossing mode.
The rib beam comprises a transverse rib unit and a vertical rib unit which are arranged in the enclosing space of the protruding structure and are connected in a staggered mode.
The number of the transverse rib units is eight, and the number of the longitudinal rib units is four.
The vertical rib unit comprises a first vertical rib, a second vertical rib, a third vertical rib and a fourth vertical rib which are arranged in the enclosed space in sequence from one side to the other side of the transverse direction of the hair cover, the horizontal muscle unit includes first horizontal muscle, the horizontal muscle of second, the horizontal muscle of third, the horizontal muscle of fourth, the horizontal muscle of fifth, the horizontal muscle of sixth, the horizontal muscle of seventh and the horizontal muscle of eighth, first vertical muscle is connected with the vertical muscle of second through the horizontal muscle of first horizontal muscle and the horizontal muscle of fifth, the vertical muscle of second passes through the horizontal muscle of second and the horizontal muscle of sixth is connected with the vertical muscle of third, the vertical muscle of third passes through the horizontal muscle of third and the horizontal muscle of seventh is connected with the vertical muscle of fourth, first vertical muscle passes through the horizontal muscle of fourth and closes the vertical wall connection that is close to first vertical muscle one side in the space, the vertical muscle of fourth passes through the horizontal muscle of eighth and closes the vertical wall connection that is close to vertical muscle one side of fourth in the space.
The first transverse rib, the second transverse rib and the third transverse rib are located on the same straight line, the fourth transverse rib, the fifth transverse rib, the sixth transverse rib, the seventh transverse rib and the eighth transverse rib are located on the same straight line, and the first transverse rib is parallel to the fourth transverse rib.
The rib beam is provided with a hair cover glue groove and is connected with the hair cover outer plate through hair cover glue.
The invention has the beneficial effects that:
1. according to the invention, the buffer holes of the inner plate of the trigger cover can play a good role in buffering and energy absorption when the head of a pedestrian collides with the trigger cover, so that the degree of injury to the head of the pedestrian is reduced.
2. According to the invention, the number of the ribs of the inner plate of the hair cover is large, so that the hair cover can be effectively prevented from being too soft and deforming when a user presses the hair cover, and a better subjective feeling is provided for the user.
3. According to the invention, the section of the steel bar beam of the hair cover is smaller, so that the weight of the hair cover is not increased and is lighter than that of the traditional hair cover on the premise of ensuring pedestrian protection and dent resistance.
4. In the invention, more hair cover glue is used, thus ensuring the anti-seismic performance of the hair cover in the driving process of the automobile.
5. The invention provides a new idea for the subsequent manufacture and optimization of the hair cover.
6. According to the invention, the convex reinforcing ribs are added in the side beam area, the reinforcing ribs are added in the lap joint area of the side beam and the rear beam, the hinge mounting plane is arranged in a step form of intersecting vertically and horizontally at different heights, and the pedestrian protection performance is not reduced while the overall modal rigidity and strength of the front hatch cover are improved.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a front view of the inner plate structure of the hair cover of the present invention;
FIG. 2 is a top view of the inner plate structure of the hair cover of the present invention;
FIG. 3 is a left side view of the inner plate structure of the hair cover of the present invention;
FIG. 4 is an axial view of the inner plate structure of the hair cover of the present invention;
FIG. 5 is a schematic illustration of a pedestrian head impact simulation of the inner panel construction of the hood of the present invention;
FIG. 6 is a schematic diagram of a simulation of dent resistance of the inner plate structure of the hair cover of the present invention.
Labeled as:
1. a raised structure; 11. a first buffer hole; 12. a second buffer hole; 13. a third buffer hole; 14. a fourth buffer hole; 15. a fifth buffer hole; 16. a sixth buffer hole; 17. a seventh buffer hole; 18. an eighth buffer hole; 19. a ninth buffer hole; 110. a tenth buffer hole; 111. an eleventh buffer hole; 112. a twelfth buffer hole; 113. a thirteenth buffer hole; 114. a fourteenth buffer hole; 2. a reinforcing beam; 21. a first transverse rib; 22. a second transverse rib; 23. a third transverse rib; 24. a fourth transverse rib; 25. a fifth transverse rib; 26. a sixth transverse rib; 27. a seventh transverse rib; 28. an eighth transverse rib; 29. a first vertical rib; 210. a second vertical rib; 211. a third vertical rib; 212. a fourth vertical rib; 3. a hair cover glue groove; 4. a hinge mounting surface; 5. the side beam is provided with a raised reinforcing rib; 6. and (5) overlapping the ribs.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the terms "first" to "fourteenth" do not represent absolute differences in structure and/or function, and do not represent a sequential execution order, but merely for convenience of description.
As shown in fig. 1 to 6, an inner plate structure of a hair cover comprises an inner plate body of the hair cover, a rib beam and a protruding structure 1 enclosing the inside of the inner plate body to form a rib beam installation space are arranged on the inner plate body of the hair cover, and a buffer hole for absorbing energy is arranged on the protruding structure 1. The setting of muscle roof beam can effectually prevent that the user from sending out when pressing to cover and covering too soft and warp, gives the user a better subjective impression. The arrangement of the buffer holes is favorable for improving the pedestrian protection effect.
In order to guarantee that the inner plate of the hair cover has a better buffering energy absorption effect, the buffer holes are multiple, and the buffer holes are distributed on the circumferential side of the protruding structure. Considering inner panel overall structure and the structural design who relatively optimizes, the buffer hole is fourteen, sends out the rear end of covering the inner panel and sets up four buffer holes, sends out the front end of covering the inner panel and sets up two buffer holes, sends out the left and right sides both ends of covering the inner panel and sets up four buffer holes respectively. Particularly, protruding structure is located the rear end transverse direction (from left to right direction as in figure 1) of sending out the lid inner panel and has set gradually first buffer hole 11, second buffer hole 12, third buffer hole 13 and fourth buffer hole 14, the corner that inner panel rear end both sides are close to the hinge mounting point is located respectively to first buffer hole and fourth buffer hole, it is nearer apart from the hinge, the size of trompil is guaranteeing hinge mounting point intensity, the mode, on the premise of performance such as anti concave, guarantee better pedestrian's protective properties. The fifth buffer hole 15, the sixth buffer hole 16, the seventh buffer hole 17 and the eighth buffer hole 18 are sequentially arranged from back to front on the vertical bending side wall on the right side of the protruding structure, the ninth buffer hole 19 and the tenth buffer hole 110 are sequentially arranged from right to left at the front end of the protruding structure, and the eleventh buffer hole 111, the twelfth buffer hole 112, the thirteenth buffer hole 113 and the fourteenth buffer hole 114 are sequentially arranged from front to back on the vertical bending side wall on the left side of the protruding structure. The four buffer holes formed in the bent side wall on the left side of the protruding structure and the four buffer holes formed in the vertical bent side wall on the right side of the protruding structure are respectively symmetrical relative to the Y axis. The Y axis is a central axis in the longitudinal direction of the inner plate of the hair cover, the ninth buffer hole 19 and the tenth buffer hole 110 are symmetrically distributed on two sides of the Y axis, the first buffer hole 11 and the fourth buffer hole 14 are symmetrical relative to the Y axis, and the second buffer hole 12 and the third buffer hole 13 are symmetrical relative to the Y axis. Above-mentioned structure setting of this kind of buffer hole promotes whole mode simultaneously, has better energy-absorbing effect relatively, more is favorable to pedestrian's protection. The buffer holes are arranged on three surfaces formed by the protruding structures in a crossing mode, so that the inner plate structure of the hair cover can be effectively collapsed and deformed when the head of a pedestrian is impacted.
The rib beam comprises a transverse rib unit and a vertical rib unit which are arranged in the enclosing space of the protruding structure and are connected in a staggered mode. Considering the comprehensive requirements of the modal and the anti-concave performance, the number of the transverse rib units is eight, and the number of the longitudinal rib units is four. Vertical muscle unit includes and locates in proper order from one side of sending out the horizontal direction of lid to the opposite side first vertical muscle 29 in the enclosure space, the vertical muscle 210 of second, the vertical muscle 211 of third and the vertical muscle 212 of fourth, horizontal muscle unit includes first horizontal muscle 21, the horizontal muscle 22 of second, the horizontal muscle 23 of third, the horizontal muscle 24 of fourth, the horizontal muscle 25 of fifth, the horizontal muscle 26 of sixth, the horizontal muscle 27 of seventh and the horizontal muscle 28 of eighth, first vertical muscle 29 is connected with the vertical muscle 210 of second through first horizontal muscle 21 and the horizontal muscle 25 of fifth, the vertical muscle 210 of second is connected with the vertical muscle 211 of third through the horizontal muscle 22 of second and the horizontal muscle 26 of sixth, the vertical muscle 23 of third is connected with the vertical muscle 212 of fourth through the horizontal muscle 23 of third and the horizontal muscle 27 of seventh, first vertical muscle 29 is connected with the vertical inner wall that is close to one side of first vertical muscle in the enclosure space through the horizontal muscle 24 of fourth, the vertical muscle 212 is close to the vertical muscle 212 in one side of vertical muscle space through the horizontal muscle 28 of eighth And (6) connecting. The transverse ribs and the vertical ribs are staggered in pairs, so that the crumple deformation of the inner plate of the hair cover is facilitated. The first transverse rib, the second transverse rib and the third transverse rib are located on the same straight line, the fourth transverse rib, the fifth transverse rib, the sixth transverse rib, the seventh transverse rib and the eighth transverse rib are located on the same straight line, and the first transverse rib is parallel to the fourth transverse rib. The structure is relatively good in mode, and relatively simpler and more convenient to manufacture. Horizontal muscle and vertical muscle are small cross-section structure, under the prerequisite that satisfies anti concave performance, satisfy pedestrian's protective properties.
The rib roof beam is equipped with send out and covers gluey groove 3, and the rib roof beam is connected with sending out the lid planking through sending out the lid to glue, has ensured the anti-seismic performance who sends out the lid. Particularly, send out the lid and glue the groove and set up thirty four, its concrete distribution position as shown in fig. 1, 4 and 5, all set up on horizontal muscle and vertical muscle and send out the lid and glue the groove, and the position that distributes is reasonable, guarantees the fastness that bonds, sends out the lid and glues more, has ensured the shock resistance ability that the car went in-process and sent out the lid.
The function of the invention in pedestrian protection is shown in fig. 5, fig. 5 is a simulation diagram of pedestrian protection head collision of the inner plate structure of the hood; when the head of a pedestrian collides with the automobile hood, the transverse ribs (21-28) and the vertical ribs (29-212) which are weak in the hood inner plate play a first role in buffering the head of the pedestrian, then the transverse ribs (21-28) and the vertical ribs (29-212) are arranged in a pairwise staggered mode to play a second role in buffering the head of the pedestrian, then the buffer holes (11-114) play a third role in buffering the head of the pedestrian, and the head of the pedestrian can be prevented from being fatally damaged by AIS3 and above by means of triple protection and effective energy absorption of the structure of the hood inner plate.
The function of the invention in dent resistance is shown in FIG. 6, FIG. 6 is a simulation diagram of dent resistance of the hair cover with the inner plate structure of the hair cover; because the number of the transverse ribs (21-28) and the number of the vertical ribs (29-212) are more, each hole area is smaller, and the strength is certain, so that the hair cover can bear larger force without deformation and further cannot generate residual deformation when the anti-concave block or the hand is applied to the hair cover. The structural arrangement of the invention can better balance the pedestrian protection performance and the dent resistance performance, and the weight of the invention is not much different from that of the traditional hair cover, even lighter; the buffering and energy-absorbing effect is better when the head of the pedestrian hits the trigger cover, and the degree of injury to the head of the pedestrian is reduced; but also can effectively prevent the hair cover from being too soft and deformed when the user presses the hair cover, and provides better subjective feeling for the user. Meanwhile, the pedestrian protection and the dent resistance are met through the ingenious structural improvement, and the weight of the hair cover is not greatly different from that of the traditional hair cover and is even lighter.
As shown in fig. 1, the side beams at both sides of the inner plate in the width direction of the hair cover are provided with side beam protruding reinforcing ribs 5, the lap joint areas of the rear side beam of the inner plate and the side beams at both sides are provided with lap joint ribs 6, and the hinge mounting surface on the inner plate is provided with a step-shaped structure 7 which is intersected vertically and horizontally. The step-shaped structure is arranged in the hinge installation surface in a manner of steps with different heights and intersecting vertically and horizontally. Through the structure, the overall modal rigidity and strength of the front hatch cover are improved, and meanwhile, the pedestrian protection performance is not reduced. The hinge installation surfaces are provided with two positions which are respectively positioned at the two ends of the rear side of the inner plate, and the two hinge installation surfaces are provided with hinge installation points.
The terms of orientation such as front end, rear end, transverse direction and vertical direction related to the above content respectively indicate the width direction and the length direction of the automobile, the front end of each component refers to one end close to the head of the automobile, and the rear end refers to one end close to the tail of the automobile. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (10)
1. The utility model provides a send out and cover inner panel structure, is including sending out and covering the inner panel body, its characterized in that, send out and cover the protruding structure that is equipped with the muscle roof beam on the inner panel body and encloses with inside and close formation muscle roof beam installation space, protruding structural buffering hole that is used for energy absorption that is equipped with.
2. The inner plate structure of claim 1, wherein the plurality of buffer holes are distributed on the circumferential edge of the protruding structure.
3. The hair cover inner plate structure of claim 2, wherein the number of the buffer holes is fourteen, four buffer holes are provided at the rear end of the hair cover inner plate, two buffer holes are provided at the front end of the hair cover inner plate, and four buffer holes are provided at the left and right ends of the hair cover inner plate.
4. The inner plate structure of claim 2, wherein the raised structure is provided with a buffer hole at a corner near the hinge mounting point.
5. The inner plate structure of claim 1, wherein the buffer holes are formed across three surfaces formed by the protruding structures.
6. The inner plate structure of claim 1, wherein the rib beam comprises a transverse rib unit and a vertical rib unit which are arranged in the enclosed space of the protruding structure and are connected in a staggered manner.
7. The inner plate structure of claim 6, wherein the number of the transverse rib units is eight, and the number of the longitudinal rib units is four.
8. The cap inner plate structure according to claim 7, wherein the vertical rib unit comprises a first vertical rib, a second vertical rib, a third vertical rib and a fourth vertical rib which are sequentially arranged from one side to the other side of the transverse direction of the cap in the enclosing space, the transverse rib unit comprises a first transverse rib, a second transverse rib, a third transverse rib, a fourth transverse rib, a fifth transverse rib, a sixth transverse rib, a seventh transverse rib and an eighth transverse rib, the first vertical rib is connected with the second vertical rib through the first transverse rib and the fifth transverse rib, the second vertical rib is connected with the third vertical rib through the second transverse rib and the sixth transverse rib, the third vertical rib is connected with the fourth vertical rib through the third transverse rib and the seventh transverse rib, the first vertical rib is connected with a vertical inner wall close to one side of the first vertical rib in the enclosing space through the fourth transverse rib, and a vertical inner wall close to one side of the fourth vertical rib in the enclosing space are connected through the eighth transverse rib And (6) connecting.
9. The hair cover inner panel structure of claim 8, wherein the first, second and third transverse ribs are aligned on a same straight line, the fourth, fifth, sixth, seventh and eighth transverse ribs are aligned on a same straight line, and the first and fourth transverse ribs are parallel.
10. The hair cover inner plate structure is characterized in that the rib beam is provided with hair cover glue grooves, and the rib beam is connected with the hair cover outer plate through hair cover glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410033.2A CN111038598A (en) | 2019-12-31 | 2019-12-31 | Hair cover inner plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410033.2A CN111038598A (en) | 2019-12-31 | 2019-12-31 | Hair cover inner plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111038598A true CN111038598A (en) | 2020-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911410033.2A Pending CN111038598A (en) | 2019-12-31 | 2019-12-31 | Hair cover inner plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111038598A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022210127A1 (en) * | 2021-04-01 | 2022-10-06 | 株式会社神戸製鋼所 | Hood structure for vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203064043U (en) * | 2012-12-19 | 2013-07-17 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine hood inner plate structure |
| US20150069786A1 (en) * | 2013-09-06 | 2015-03-12 | Toyota Motor Engineering & Manufacturing North America, Inc. | Hood structure for automotive vehicle |
| RU166660U1 (en) * | 2016-04-12 | 2016-12-10 | Открытое акционерное общество "АВТОВАЗ" | HOOD OF A CAR |
| CN206265155U (en) * | 2016-12-19 | 2017-06-20 | 上汽大众汽车有限公司 | A kind of Front hut inner based on pedestrian protecting design |
| CN206552117U (en) * | 2017-02-27 | 2017-10-13 | 浙江吉利控股集团有限公司 | A kind of car engine cover |
| CN206664720U (en) * | 2017-04-06 | 2017-11-24 | 浙江众泰汽车制造有限公司 | A kind of automobile engine cover inner plate structure |
| CN206719333U (en) * | 2017-02-28 | 2017-12-08 | 长城汽车股份有限公司 | Bonnet inner panel and hood |
| CN209008689U (en) * | 2018-09-05 | 2019-06-21 | 北京长城华冠汽车技术开发有限公司 | Bonnet inner panel, hood and automobile |
-
2019
- 2019-12-31 CN CN201911410033.2A patent/CN111038598A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203064043U (en) * | 2012-12-19 | 2013-07-17 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine hood inner plate structure |
| US20150069786A1 (en) * | 2013-09-06 | 2015-03-12 | Toyota Motor Engineering & Manufacturing North America, Inc. | Hood structure for automotive vehicle |
| RU166660U1 (en) * | 2016-04-12 | 2016-12-10 | Открытое акционерное общество "АВТОВАЗ" | HOOD OF A CAR |
| CN206265155U (en) * | 2016-12-19 | 2017-06-20 | 上汽大众汽车有限公司 | A kind of Front hut inner based on pedestrian protecting design |
| CN206552117U (en) * | 2017-02-27 | 2017-10-13 | 浙江吉利控股集团有限公司 | A kind of car engine cover |
| CN206719333U (en) * | 2017-02-28 | 2017-12-08 | 长城汽车股份有限公司 | Bonnet inner panel and hood |
| CN206664720U (en) * | 2017-04-06 | 2017-11-24 | 浙江众泰汽车制造有限公司 | A kind of automobile engine cover inner plate structure |
| CN209008689U (en) * | 2018-09-05 | 2019-06-21 | 北京长城华冠汽车技术开发有限公司 | Bonnet inner panel, hood and automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022210127A1 (en) * | 2021-04-01 | 2022-10-06 | 株式会社神戸製鋼所 | Hood structure for vehicle |
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Application publication date: 20200421 |
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| RJ01 | Rejection of invention patent application after publication |