CN109747582B - Self-adaptive positioning mechanism and automobile - Google Patents
Self-adaptive positioning mechanism and automobile Download PDFInfo
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- CN109747582B CN109747582B CN201711058030.8A CN201711058030A CN109747582B CN 109747582 B CN109747582 B CN 109747582B CN 201711058030 A CN201711058030 A CN 201711058030A CN 109747582 B CN109747582 B CN 109747582B
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Abstract
The invention discloses a self-adaptive positioning mechanism and an automobile, and relates to the technical field of automobile safety. One embodiment of the adaptive positioning mechanism comprises: the clamping component comprises a base part, an elastic part, a non-elastic element, a positioning column and a clamping component; the base is used for mounting the safety air bag; one end of the elastic part is connected with the base part, and the other end of the elastic part is connected with one end of the non-elastic element; the other end of the inelastic element is connected with a positioning column arranged on the steering wheel; the clamping component comprises a clamping hook arranged on the base and a clamping spring arranged on the steering wheel; at joint subassembly joint in-process, through the location of the contact in advance of nonelastic element with the reference column to pulling elastic part warp, guide joint subassembly joint under accurate position state. The embodiment can synchronously and adaptively adjust the position between the base part and the steering wheel in the installation process, thereby ensuring the uniformity of the fit clearance between the base part and the steering wheel, and having simple structure and convenient installation.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to a self-adaptive positioning mechanism and an automobile.
Background
In life, the safety air bag is not only a passive safety protection device, but also is matched with a seat belt for use, can provide effective protection for passengers, and is also an appearance piece which is matched with a steering wheel for providing multiple control functions.
As airbags are increasingly used in automobiles of various grades, and the requirements for automobile safety are increased. To ensure a good appearance of the product, a technical difficulty needs to be overcome: the problem of uneven gaps is easy to occur when the main driving safety air bag and the steering wheel are installed; and once the problem of uneven gaps occurs, the adjustment is difficult to be carried out in the later period.
In the prior art, a main driving safety airbag is mostly installed and positioned in a positioning column mode. For example:
patent document CN201310185433.4 discloses a connecting mechanism of an airbag module and a steering wheel, which includes: the lower plate of the floating ringing mechanism is provided with a torsion spring, a positioning hole and an elastic pad; the steering wheel framework is provided with a barb, a positioning column and a boss; the torsion spring is hooked with the barb, the positioning column is inserted into the positioning hole to be matched with the positioning hole, and the boss is attached to the elastic pad. The connecting mechanism has the characteristics of reliable connection, convenient installation and disassembly and the like. However, this type of connection mechanism employs a snap-in attachment method, which tends to cause a problem of uneven gap between the airbag module and the steering wheel cover.
Patent document CN201511000933.1 discloses an automotive steering wheel assembly comprising a steering wheel and an airbag module, wherein the steering wheel comprises a hub and a pair of spoke portions extending from the hub, and a pair of opposite gaps are formed between the top outer edge of the airbag module and the inner side surfaces of the spoke portions. The automobile steering wheel assembly also comprises a position calibration component for positioning the air bag component, and a positioning structure is arranged between the position calibration component and the air bag component and limits the relative movement of the position calibration component and the air bag component in a horizontal plane. The position correcting member is mounted to the hub, and the position of the position correcting member on the hub is determined such that the gap size of the gap formed by the top outer edge of the airbag module and the inner side surfaces of the pair of spoke portions is approximately equal. However, such an automobile steering wheel assembly has a large number of parts, increasing the man-hour for mounting; furthermore, it is inconvenient to adjust the relative position between the airbag module and the steering wheel because of the use of the integrated adjustment mechanism.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: if the clearance between the positioning column and the steering wheel is large, an accurate positioning form cannot be provided; if the gap is set to be too small, interference is easily generated during horn ringing operation, and therefore the horn ringing function is affected. Therefore, under the condition of not increasing the cost, how to ensure that the gap between the main driving airbag assembly and the steering wheel component is uniform is a problem which needs to be solved urgently in the current research.
Disclosure of Invention
In view of this, embodiments of the present invention provide an adaptive positioning mechanism and an automobile, which can synchronously and adaptively adjust a position between a base and a steering wheel in an installation process, so that the base and the steering wheel are located at relatively accurate installation positions after the installation is completed, uniformity of a fit gap between the safety base and the steering wheel is ensured, and the adaptive positioning mechanism and the automobile are simple in structure and convenient to install.
To achieve the above object, according to an aspect of an embodiment of the present invention, there is provided an adaptive positioning mechanism including: the clamping component comprises a base part, an elastic part, a non-elastic element, a positioning column and a clamping component; wherein the content of the first and second substances,
the base is used for mounting the safety air bag;
one end of the elastic part is connected with the base part, and the other end of the elastic part is connected with one end of the non-elastic element; the other of the non-elastic elements is connected with a positioning column arranged on the steering wheel;
the clamping component comprises a clamping hook arranged on the base and a clamping spring arranged on the steering wheel;
at joint subassembly joint in-process, through the location of the contact in advance of nonelastic element with the reference column to pulling elastic part warp, guide joint subassembly joint under accurate position state.
Optionally, the non-elastic element is provided with a central hole; the inner side of the central hole is connected with the outer side of the positioning column in a matching manner.
Optionally, one end of the central hole connected with the positioning column is a stepped hole.
Optionally, the adaptive positioning mechanism of the embodiment of the present invention further includes: and the elastic fixing element is arranged on the base and used for limiting the non-axial movement range of the elastic part.
Optionally, the resilient fixation element comprises: a sleeve; the elastic part is sleeved in the sleeve.
Optionally, the elastic fixation element further comprises: a protrusion and a jaw; one end of the protruding part is arranged on the sleeve, and the clamping jaw is arranged on the outer side of the other end of the protruding part;
the inelastic element further includes: a card slot; the clamping jaw penetrates through the clamping groove and is lapped on the inelastic element.
Optionally, each resilient fixing element comprises at least two jaws.
Optionally, the hook is provided with a stiffener.
Optionally, the resilient portion is a spring.
According to another aspect of embodiments of the present invention, there is provided an automobile comprising an airbag, a steering wheel, and an adaptive positioning mechanism provided by embodiments of the present invention for mounting the airbag on the steering wheel.
One embodiment of the above invention has the following advantages or benefits:
the first fixing part is arranged to enable the base part to be installed on the steering wheel; the elastic part is arranged, so that the base part can have a certain free compression stroke through compressing the elastic element to ensure the sounding function of the horn, and the base part can be actuated within a certain range in the radial direction of the steering wheel, so that the position between the base part and the steering wheel can be synchronously and adaptively adjusted in the installation process. According to the embodiment of the invention, the base part and the steering wheel are in relatively accurate installation positions after the installation is finished, so that the uniformity of a fit clearance between the base part and the steering wheel is ensured, and the steering wheel is simple in structure and convenient to install.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
FIG. 1 is an exploded schematic view of an adaptive positioning mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of an installation of an adaptive positioning mechanism according to an embodiment of the invention;
FIG. 3 is a schematic view of the assembly of the non-elastic element and the pawl in the adaptive positioning mechanism according to the embodiment of the present invention;
FIG. 4 is a schematic view of a non-elastic element according to an embodiment of the present invention;
FIG. 5 is a schematic view of an elastic fixation element of an embodiment of the present invention;
FIG. 6 is a schematic view of a clamp spring according to an embodiment of the invention;
fig. 7 is an assembly schematic diagram of a snap spring and a hook in the adaptive positioning mechanism according to the embodiment of the present invention;
FIG. 8 is a schematic view of an adaptive positioning mechanism in an alternative embodiment of the invention;
fig. 9-12 are schematic diagrams of the installation process of the adaptive positioning mechanism of fig. 8.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
It should be noted that various technical features of the present invention may be arbitrarily combined without departing from the scope and spirit of the present invention without being technically conceived of.
Fig. 1 shows an exploded view of an adaptive positioning mechanism according to an embodiment of the invention. As shown in fig. 1, the adaptive positioning mechanism includes: the base part 1, the elastic part 4, the non-elastic element 5, the positioning column 9 and the clamping component; wherein the base 1 is used for mounting an airbag; one end of the elastic part 4 is connected with the base part 1, and the other end is connected with one end of the non-elastic element 5; the other of the non-elastic elements 5 is connected with a positioning post 9 arranged on the steering wheel 8; the clamping assembly comprises a clamping hook 3 arranged on the base 1 and a clamping spring 10 arranged on the steering wheel 8. In the clamping process of the clamping assembly, the non-elastic element 5 is in pre-contact positioning with the positioning column 9, the elastic part 4 is pulled to deform, and the clamping assembly is guided to be clamped under an accurate position state. The precise positional state referred to herein is a positional state that ensures uniformity of the fit clearance between the base portion and the steering wheel.
Fig. 2 is a schematic installation diagram of an adaptive positioning mechanism according to an embodiment of the invention. The base 1 can be actuated within a certain range in the radial direction of the steering wheel 8 by the elastic portion 4. In the installation process, the non-elastic element 5 can pull the elastic part 4 matched with the non-elastic element to deform, and push the base part 1 to be adjusted to a theoretical correct position (namely, a position for ensuring the uniformity of a matching gap between the base part and a steering wheel), so that the base part 1 and the steering wheel 8 are located at a relatively accurate installation position after the installation is finished, and the uniformity of the matching gap between the base part 1 and the steering wheel is ensured. In the process that the base 1 is adjusted to the theoretical correct position, the relative position between the clamping hook 3 on the base 1 and the clamping spring 10 on the steering wheel is changed constantly, when the base 1 is adjusted to the theoretical correct position, the clamping assembly is guided to the accurate position state, and the clamping assembly is clamped in the position state, so that the base 1 is fixed on the steering wheel 8, and the base 1 provided with the safety air bag is prevented from being separated from the steering wheel 8 when the safety air bag is opened.
Fig. 6 is a schematic view of a snap spring according to an embodiment of the present invention, and fig. 7 is a schematic view of an assembly of the snap spring and the hook in the adaptive positioning mechanism according to an embodiment of the present invention. In the installation process, the clamping hook 3 applies force to the clamping pin of the clamping spring 10 along the arrow direction, the clamping pin deforms, and the clamping spring 10 is clamped into the clamping hook 3. The circlip 10 may be arranged on the steering wheel 8 in any manner. Preferably, a framework clamping groove 11 can be formed in the steering wheel 8, and the clamp spring 10 is arranged in the framework clamping groove 11, so that the clamp spring 10 can be fixed on one hand, and the installation space can be reduced on the other hand. The number of the hooks 3 and the circlips 10 may be set according to practical situations, which is not specifically limited in the present invention. Optionally, a stiffener is provided on the hook 3 to increase the structural stability of the hook 3.
As shown in fig. 4, the non-elastic element 5 can be provided with a central hole 13; the inner side of the central hole 13 is matched and connected with the outer side of the positioning column 9. The non-elastic element 5 and the positioning column 9 are matched to realize pre-positioning, the structure is simple, and the installation is convenient. The mating connection between the non-elastic element 5 and the positioning post 9 may also serve as a fixing function, fixing the base 1 to the steering wheel 8. Various connecting methods known to those skilled in the art can be adopted between the inner side of the central hole 13 and the outer side of the positioning column 9, and the invention is not limited to the connecting method.
In some alternative embodiments, only pre-positioning can be achieved between the inner side of the central hole 13 and the outer side of the positioning column 9, and during installation, an accurate installation direction (i.e., an installation direction that ensures uniformity of a fit gap between the base and the steering wheel) is given by the matching pre-positioning between the inner side of the central hole 13 and the outer side of the positioning column 9.
The end of the central hole 13 connected to the positioning post 9 may be provided as a stepped hole to limit the length of the positioning post 9 protruding into the non-elastic element 5.
The adaptive positioning mechanism of the embodiment of the present invention may further include: and the elastic fixing element 2 is arranged on the base part 1 and used for limiting the non-axial movement range of the elastic part 4. The non-axial movement here means a movement in the radial direction of the steering wheel. In order to enable the elastic portion 4 to be actuated within a certain range of non-axial directions, the dimension of the inner space of the elastic fixation element 2 in the non-axial direction should be larger than the dimension of the elastic portion 4 in the non-axial direction. During the installation of the airbag, the non-elastic element 5 can be pulled to move by the deformation of the elastic part 4, thereby pushing the base part 1 to adjust to the theoretical correct position. Optionally, the elastic fixing element 2 comprises: a sleeve 6; the elastic part 4 is sleeved in the sleeve 6. Fig. 5 is a schematic view of an elastic fixing element according to an embodiment of the present invention.
In some embodiments, the elastic fixation element 2 further comprises: a projection and a jaw 7. As shown in fig. 5, one end of the projection is provided on the sleeve 6, and the claw 7 is provided outside the other end of the projection; the non-elastic element 5 further comprises: a card slot 12; the jaws 7 extend through the slots 12 and overlap the non-elastic element 5. The non-elastic element 5 can be provided with a notch matched with the claw 7, and the claw 7 penetrates through the clamping groove 12 and then is overlapped on the notch of the non-elastic element 5. Fig. 3 shows a schematic view of the assembly of the non-elastic element 5 with the pawl 7. Through the cooperation of setting up and jack catch 7 and draw-in groove 12, can further fix the base, prevent that the base 1 of installation air bag from deviating from 8 steering wheels when the air bag opens. The number of the claws 7 and the slots 12 may be set according to practical situations, and the invention is not limited in this respect. Optionally, each elastic fixing element 2 comprises at least two jaws 7.
In a preferred embodiment, the resilient portion 4 is a spring. It should be understood that the elastic portion 4 may be other elastic elements known to those skilled in the art as long as it has an elastic contraction function, and the present invention does not specifically limit the structure of the elastic portion 4.
FIG. 8 is a schematic diagram of an adaptive positioning mechanism in an alternative embodiment of the invention. In this embodiment, the adaptive positioning mechanism includes: the fixing device comprises a base 1, an elastic fixing element 2, a hook 3, an elastic part 4, a non-elastic element 5, a positioning column 9, a hook 3 and a clamp spring 10. The elastic fixing element 2 comprises: the sleeve 6, the protruding part and the claw 7, and a clamping groove 12 matched with the claw 7 is arranged on the non-elastic element 5. The structure and connection of the above elements are referred to the above parts, and are not described herein again. Fig. 9-12 are schematic diagrams of the installation process of the adaptive positioning mechanism of fig. 8:
when the base 1 is mounted on the steering wheel, as shown in fig. 9, the hook 3 on the base 1 first contacts with the clamp spring 10 on the steering wheel 8; under the action of the mounting force, the hook 3 continues to move downwards, the inclined surface of the hook 3 pushes the clamping foot of the clamp spring 10 to bend towards the inner side (namely the arrow direction in fig. 9), and the clamp spring 10 is spread;
as shown in fig. 10, when the hook 3 moves downward for a certain distance, the inner side of the center hole of the non-elastic element 5 contacts with the outer side of the positioning post 9 or is in a state of small clearance. In this embodiment, as long as the fit between the inner side of the center hole of the inelastic element 5 and the positioning post 9 can determine an accurate mounting direction (i.e., a mounting direction that ensures uniformity of the fit gap between the airbag module and the steering wheel), the two may be attached or have a gap therebetween. The state of small clearance refers to the state that a clearance is formed between the inner side of the central hole of the non-elastic element 5 and the positioning column 9, and the size of the clearance does not influence the accurate installation direction determined by the matching of the two;
as shown in fig. 11, as the base continues to be mounted downwards, the locating post 9 on the steering wheel 8 is fully or nearly flush with the inside of the central hole 13 of the non-elastic element 5. In this embodiment, as long as the fit between the inner side of the center hole of the inelastic element 5 and the positioning post 9 can determine an accurate mounting direction (i.e., a mounting direction that ensures the uniformity of the fit gap between the airbag module and the steering wheel), the two can be completely attached or nearly attached. The close fitting means a state in which a gap is provided between the inner side of the center hole of the inelastic element 5 and the positioning post 9 and the size of the gap does not affect the determination of an accurate mounting direction by the fitting of the both. The non-elastic element 5 pulls the elastic element 4 matched with the non-elastic element to deform, and pushes the base part to adjust to a theoretical correct position (namely, a position of the uniformity of a matching gap between the base part and the steering wheel);
as shown in fig. 12, the airbag continues to be installed downwards until the snap spring 10 is completely installed inside the snap hook 3, and at this time, the base is in a relatively correct installation position (i.e., a position which ensures uniformity of a fit gap between the base and the steering wheel).
The embodiment of the invention also provides an automobile which comprises the safety airbag and a steering wheel, and further comprises the self-adaptive positioning mechanism provided by the embodiment of the invention, wherein the self-adaptive positioning mechanism is used for mounting the safety airbag on the steering wheel.
According to the technical scheme of the embodiment of the invention, the method has the following advantages or beneficial effects:
the first fixing part is arranged to enable the base part to be installed on the steering wheel; the elastic part is arranged, so that the base part can have a certain free compression stroke through compressing the elastic element to ensure the sounding function of the horn, and the base part can be actuated within a certain range in the radial direction of the steering wheel, so that the position between the base part and the steering wheel can be synchronously and adaptively adjusted in the installation process. According to the embodiment of the invention, the base part and the steering wheel are in relatively accurate installation positions after the installation is finished, so that the uniformity of a fit clearance between the base part and the steering wheel is ensured, and the steering wheel is simple in structure and convenient to install.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An adaptive positioning mechanism, comprising: the clamping device comprises a base (1), an elastic part (4), a non-elastic element (5), a positioning column (9) and a clamping assembly; wherein the content of the first and second substances,
the base (1) is used for mounting an airbag;
one end of the elastic part (4) is connected with the base part (1), and the other end is connected with one end of the non-elastic element (5); the other end of the non-elastic element (5) is connected with a positioning column (9) arranged on a steering wheel (8);
the clamping assembly comprises a clamping hook (3) arranged on the base (1) and a clamping spring (10) arranged on the steering wheel (8);
the clamping assembly is clamped in the clamping process through the non-elastic element (5) and the positioning column (9) in advance in a contact positioning mode, and the elastic part (4) is pulled to deform to guide the clamping assembly to be clamped in an accurate position state.
2. An adaptive positioning mechanism according to claim 1, characterized in that the non-elastic element (5) is provided with a central hole (13); the inner side of the central hole (13) is connected with the outer side of the positioning column (9) in a matching way.
3. Self-adaptive positioning mechanism according to claim 2, wherein one end of the central hole (13) connected with the positioning column (9) is a stepped hole.
4. The adaptive positioning mechanism of claim 1, further comprising: and the elastic fixing element (2) is arranged on the base part (1) and is used for limiting the non-axial movement range of the elastic part (4).
5. The adaptive positioning mechanism according to claim 4, characterized in that the elastic fixing element (2) comprises: a sleeve (6); the elastic part (4) is sleeved in the sleeve (6).
6. The adaptive positioning mechanism according to claim 5, characterized in that the elastic fixing element (2) further comprises: a protrusion and a jaw (7); one end of the protruding part is arranged on the sleeve (6), and the clamping jaw (7) is arranged on the outer side of the other end of the protruding part;
the non-elastic element (5) further comprises: a card slot (12); the clamping jaw (7) penetrates through the clamping groove (12) and is lapped on the non-elastic element (5).
7. Adaptive positioning mechanism according to claim 6, characterized in that each elastic fixing element (2) comprises at least two jaws (7).
8. The adaptive positioning mechanism according to claim 1, characterized in that the hook (3) is provided with a reinforcement rib.
9. Adaptive positioning mechanism according to claim 1, characterized in that the elastic part (4) is a spring.
10. An automobile comprising an airbag and a steering wheel, further comprising an adaptive positioning mechanism according to any of claims 1-9 for mounting the airbag to the steering wheel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711058030.8A CN109747582B (en) | 2017-11-01 | 2017-11-01 | Self-adaptive positioning mechanism and automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711058030.8A CN109747582B (en) | 2017-11-01 | 2017-11-01 | Self-adaptive positioning mechanism and automobile |
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| Publication Number | Publication Date |
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| CN109747582A CN109747582A (en) | 2019-05-14 |
| CN109747582B true CN109747582B (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711058030.8A Active CN109747582B (en) | 2017-11-01 | 2017-11-01 | Self-adaptive positioning mechanism and automobile |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112440920B (en) * | 2019-08-27 | 2022-11-01 | 宁波均胜汽车安全系统有限公司 | Shock attenuation owner drives air bag |
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| KR20050076042A (en) * | 2004-01-19 | 2005-07-26 | 현대모비스 주식회사 | Mounting structure of driver air bag module |
| KR20060024973A (en) * | 2004-09-15 | 2006-03-20 | 현대모비스 주식회사 | Horn switch |
| CN1833922A (en) * | 2005-03-16 | 2006-09-20 | 高田株式会社 | Steering wheel with airbag apparatus |
| KR20140039876A (en) * | 2012-09-25 | 2014-04-02 | 현대모비스 주식회사 | Structure for combining steering wheel and airbag module |
| CN106232434A (en) * | 2014-03-04 | 2016-12-14 | Trw汽车安全系统有限公司 | For the card lock pin that air bag module is fixed on motor vehicle steering wheel |
| CN106314348A (en) * | 2015-06-30 | 2017-01-11 | 本田技研工业株式会社 | Airbag module for driver's seat |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100624540B1 (en) * | 2004-10-21 | 2006-09-20 | 대성전기공업 주식회사 | Operating control switch for the air-bag of the assistant driver's seat |
| DE102016100306B4 (en) * | 2016-01-11 | 2020-07-30 | Autoliv Development Ab | steering wheel |
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2017
- 2017-11-01 CN CN201711058030.8A patent/CN109747582B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050076042A (en) * | 2004-01-19 | 2005-07-26 | 현대모비스 주식회사 | Mounting structure of driver air bag module |
| KR20060024973A (en) * | 2004-09-15 | 2006-03-20 | 현대모비스 주식회사 | Horn switch |
| CN1833922A (en) * | 2005-03-16 | 2006-09-20 | 高田株式会社 | Steering wheel with airbag apparatus |
| KR20140039876A (en) * | 2012-09-25 | 2014-04-02 | 현대모비스 주식회사 | Structure for combining steering wheel and airbag module |
| CN106232434A (en) * | 2014-03-04 | 2016-12-14 | Trw汽车安全系统有限公司 | For the card lock pin that air bag module is fixed on motor vehicle steering wheel |
| CN106314348A (en) * | 2015-06-30 | 2017-01-11 | 本田技研工业株式会社 | Airbag module for driver's seat |
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Effective date of registration: 20190516 Address after: 315103 2nd Floor, 005 Building, 1266 Juxian Road, Ningbo High-tech Zone, Zhejiang Province Applicant after: Ningbo Cheng Sheng automobile safety system Co., Ltd. Address before: 201707 No. 8000 song Ze Avenue, Qingpu Industrial Park, Shanghai. Applicant before: Gao Tian (Shanghai) automotive safety system development Co., Ltd. |
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