CN110065466B - Clamping mechanism, safety airbag device and motor vehicle steering wheel - Google Patents
Clamping mechanism, safety airbag device and motor vehicle steering wheel Download PDFInfo
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- CN110065466B CN110065466B CN201810067217.2A CN201810067217A CN110065466B CN 110065466 B CN110065466 B CN 110065466B CN 201810067217 A CN201810067217 A CN 201810067217A CN 110065466 B CN110065466 B CN 110065466B
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- clamping
- shell
- cover plate
- steering wheel
- hook
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- 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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a clamping mechanism, an airbag device and a motor vehicle steering wheel, and relates to the technical field of automobile safety. One embodiment of the clamping mechanism comprises: the device comprises a shell and a cover plate arranged on the shell; a space for installing the airbag module is formed between the shell and the cover plate; wherein, the vertical wall of the shell is provided with a second hook, and the vertical wall of the cover plate is provided with a clamping groove; in the process of clamping the shell and the cover plate, the second clamping hook is clamped with the clamping groove. The embodiment of the invention can prevent the cover plate from falling off from the shell when the bag is unfolded, and has simple structure and low production cost.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to a clamping mechanism, an airbag device and a steering wheel of a motor vehicle.
Background
In the airbag module of the related art, a space for installing the airbag module is formed between the cover plate and the case. To prevent the cover from falling out of the housing when the pouch is unfolded, the CN106274785A patent adds a catch on the vertical wall of the metal housing.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
the manufacturing of the die requires an additional stamping process, and the die needs to be riveted again after assembly, so that the cost is high.
Disclosure of Invention
In view of this, embodiments of the present invention provide a latch mechanism, an airbag device, and a steering wheel of a motor vehicle, which can prevent a cover plate from falling off a housing when a bag is deployed, and have a simple structure and a low production cost.
To achieve the above object, according to an aspect of an embodiment of the present invention, there is provided a latch mechanism including: the device comprises a shell and a cover plate arranged on the shell; a space for installing the airbag module is formed between the shell and the cover plate; wherein the content of the first and second substances,
a second clamping hook is arranged on the vertical wall of the shell, and a clamping groove is arranged on the vertical wall of the cover plate;
in the process of clamping the shell and the cover plate, the second clamping hook is clamped with the clamping groove.
Optionally, the shell is provided with a through hole, and the cover plate is provided with a first clamping hook;
in the clamping process of the shell and the cover plate, the first clamping hook can penetrate through the through hole and is lapped on the surface of the shell.
Optionally, a protrusion is disposed on the cover plate, and the first hook is disposed at an end of the protrusion.
Optionally, the protrusion is provided on the cover standing wall of the cover plate.
Optionally, the through hole is provided on the bottom surface of the housing;
in the process of clamping the shell and the cover plate, the first clamping hook penetrates through the through hole and is lapped on the outer surface of the shell vertical wall of the shell and/or the outer surface of the bottom surface of the shell.
Optionally, a first positioning portion is disposed on the housing vertical wall of the housing, and a second positioning portion is disposed on the cover plate vertical wall of the cover plate;
in the clamping process of the shell and the cover plate, the first positioning part and the second positioning part are matched to limit the clamping direction between the shell and the cover plate.
Optionally, one of the first positioning portion and the second positioning portion is a positioning groove, and the other is a positioning protrusion.
Optionally, a first snap spring is arranged in the shell, and the outer side surface of the first snap spring is abutted against the inner side surface of the first clamping hook so as to apply thrust to the first clamping hook;
clamping mechanism installs behind the steering wheel skeleton, presses from passenger side direction steering wheel skeleton side during clamping mechanism, first jump ring contacts with the contact on the steering wheel skeleton.
Optionally, the first clamp spring is an annular clamp spring, and two ends of the annular clamp spring are respectively arranged in the shell.
Optionally, the shell is provided with a connecting hook;
in the installation process of the clamping mechanism and the steering wheel framework, the connecting clamping hook penetrates through a connecting hole in the steering wheel framework and is clamped with a second clamping spring installed on the connecting hole.
Optionally, the housing is of an integrally formed structure.
According to another aspect of the embodiments of the present invention, there is provided an airbag device including an airbag module, and further including a latch mechanism provided in the first aspect of the embodiments of the present invention for mounting the airbag module.
According to a further aspect of the embodiment of the invention, a steering wheel of a motor vehicle is provided, which comprises a steering wheel framework, an airbag module and a clamping mechanism provided by the first aspect of the embodiment of the invention; wherein the content of the first and second substances,
the clamping mechanism is used for mounting the airbag module, and at least two contacts are arranged on the steering wheel framework;
clamping mechanism installs behind the steering wheel skeleton, presses from passenger side direction steering wheel skeleton side during clamping mechanism, first jump ring contacts with the contact on the steering wheel skeleton.
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 a schematic structural diagram of a cover plate according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first hook in a cover plate according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a housing according to an embodiment of the invention;
FIG. 4 is a schematic view of the structure of FIG. 3 taken along the direction A-A;
FIG. 5 is a clamping schematic of a clamping mechanism according to an embodiment of the invention;
FIG. 6 is an enlarged partial schematic view of B in FIG. 5;
FIG. 7 is a schematic structural diagram of a first clamp spring according to an embodiment of the invention;
fig. 8 is a schematic view of the first clamp spring installed in the housing according to the embodiment of the invention;
FIG. 9 is a schematic structural diagram of a steering wheel armature according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of an airbag device according to an embodiment of the invention;
fig. 11 is a schematic structural view of a steering wheel for a motor vehicle according to an embodiment of the present invention.
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.
According to the clamping mechanism provided by the embodiment of the invention, the clamping unit capable of clamping is arranged between the cover plate and the shell, so that the cover plate is prevented from falling off from the shell when the bag is unfolded. It should be noted that various technical features in the embodiments of the present invention can be arbitrarily combined without departing from the spirit of the present invention.
The latch mechanism according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 9.
The clamping mechanism of the embodiment of the invention comprises: a housing 7, and a cover plate 1 mounted on the housing 7; after the housing 7 and the cover plate 1 are assembled, a space for installing an airbag module can be formed between the housing and the cover plate; a second hook 10 is arranged on the vertical wall 11 of the shell 7, and a clamping groove 3 is arranged on the vertical wall 2 of the cover plate 1;
in the process of clamping the shell 7 and the cover plate 1, the second clamping hook 10 is clamped with the clamping groove 3.
It should be noted that the airbag module of the embodiment of the invention may include only the airbag, and may also include the airbag and other auxiliary components. In an alternative embodiment shown in fig. 5, the airbag module comprises an airbag 12 and a gas generator 13 for inflating the airbag 12.
The second hook 10 and the slot 3 cooperate to form a clamping unit. As shown in fig. 6, in practical application, when the bag is unfolded, the cover plate 1 moves upward, and the second hook 10 is engaged with the engaging groove 3, so that the upward movement of the cover plate 1 can be limited, and the cover plate can be prevented from falling off from the housing when the bag is unfolded. In addition, the clamping mechanism provided by the embodiment of the invention is simple in structure and manufacturing process and low in cost.
Optionally, a through hole 8 is formed in the housing 7, and a first hook 5 is arranged on the cover plate 1; in the process of clamping the shell 7 and the cover plate 1, the first clamping hook 5 can penetrate through the through hole 8 and is overlapped on the surface of the shell 7.
The first hook 5 and the through hole 8 are matched to form another clamping unit. As shown in fig. 6, in practical application, when the bag is unfolded, the cover plate 1 moves upward, and the cover plate vertical wall 2 and the housing vertical wall 11 keep contact, so that the stress of the hook 5 can be reduced; and because the hook 5 passes through the through hole 8 and then is overlapped on the surface of the shell 7, the upward movement of the cover plate 1 can be limited, thereby preventing the risk of the breakage of the hook and the falling off of the cover plate from the shell. In addition, the clamping mechanism provided by the embodiment of the invention is simple in structure and manufacturing process and low in cost.
In order to make the hook 5 penetrate the through hole 8, the protrusion length of the hook 5 must be enough to contact the through hole 8, the hook cannot penetrate the through hole 8 if the length of the hook is too short, and the hook cannot penetrate the through hole 8, but cannot be fastened to the housing 7, so that the aforementioned clamping effect cannot be achieved. In practical application, a person skilled in the art can set a suitable length of the hook, or can extend the length of the vertical wall of the cover plate 1 and set the hook 5 at the end of the vertical wall of the cover plate. In some alternative embodiments, the cover plate 1 may be provided with a protrusion 4, and the first hook 5 is provided at an end of the protrusion 4. Through setting up protruding portion 4, can be on the basis of guaranteeing to make first pothook 5 run through-hole 8, simplify latch mechanism's structure, reduce the material quantity of apron, reduce cost.
The position of the projection 4 can be set according to actual needs. In some alternative embodiments, the projections 4 are provided on the cover standing wall 2 of the cover 1. The protruding part is arranged on the vertical wall of the cover plate, so that the structure is simple.
The through-hole 8 may be provided on the bottom surface of the housing 7. During the clamping process of the housing 7 and the cover plate 1, the first hook 5 penetrates through the through hole 8 and is overlapped on the outer surface of the housing standing wall 11 of the housing 7, as shown in fig. 5 and 6. Of course, the first hook 5 may also penetrate through the through hole 8 and overlap the outer surface of the bottom surface of the housing 7 during the process of clamping the housing 7 and the cover plate 1.
Optionally, the housing vertical wall 11 of the housing 7 is provided with a second hook 10, and the cover vertical wall 2 of the cover 1 is provided with a slot 3. In the process of clamping the shell 7 and the cover plate 1, the second clamping hook 10 is clamped with the clamping groove 3.
A first snap spring 14 may be further disposed in the housing 7, and an outer side surface of the first snap spring 14 abuts against an inner side surface of the first hook 5 to apply a pushing force to the first hook 5, so that the first hook 5 is tightly overlapped on the surface of the housing 7. Fig. 8 is a schematic view of the first clip spring installed in the housing according to the embodiment of the present invention, and fig. 9 is a schematic view of the structure of the steering wheel frame according to the embodiment of the present invention. After the clamping mechanism of the embodiment of the invention is arranged on the steering wheel framework 16, when the clamping mechanism is pressed from the passenger side to the steering wheel framework 16 side, the first clamp spring 14 is contacted with the contact 19 on the steering wheel framework 16, so that the horn of the motor vehicle adopting the clamping mechanism of the embodiment of the invention can sound.
Optionally, the first clamp spring 14 is an annular clamp spring, and two ends of the annular clamp spring are respectively arranged in the housing 7. Fig. 7 is a schematic structural diagram of a first clamp spring according to an embodiment of the invention, and fig. 8 is a schematic mounting diagram of the first clamp spring in a housing according to an embodiment of the invention. With the first clip spring of this structure, it is convenient for the first clip spring 14 to be compressively mounted in the housing 7 to apply the urging force to the first hook 5.
The shell 7 can also be provided with a connecting hook 15; in the installation process of the clamping mechanism and the steering wheel framework 16, the connecting clamping hook 15 penetrates through a connecting hole 17 on the steering wheel framework 16 and is clamped with a second clamping spring 18 installed on the connecting hole 17. By adopting the structure form to connect the housing 7 and the steering wheel framework 16, the first snap spring 14 installed in the housing 7 can be separated from the contact 19 on the steering wheel framework 16, and when the clamping mechanism is pressed from the passenger side to the steering wheel framework 16 side, the first snap spring 14 is contacted with the contact 19 on the steering wheel framework 16, so that the connection reliability between the two is improved, and the ringing of the horn can be controlled conveniently through the pressing operation.
In some embodiments, the housing standing wall 11 of the housing 7 is provided with the first positioning portion 9, and the cover standing wall 2 of the cover 1 is provided with the second positioning portion 6. In the clamping process of the shell 7 and the cover plate 1, the first positioning part 9 and the second positioning part 6 are matched to limit the clamping direction between the shell 7 and the cover plate 1, so that the cover plate 1 and the shell 7 can be assembled quickly and accurately.
Optionally, one of the first positioning portion 9 and the second positioning portion 6 is a positioning groove, and the other is a positioning protrusion. The positioning is realized through the positioning groove and the positioning bulge, and the structure and the manufacturing process are simple. In an alternative embodiment shown in fig. 1 to 6, the first positioning portion 9 is a positioning groove, and the second positioning portion 6 is a positioning projection.
The housing 7 may be of one-piece construction. The shell with an integrated structure is simple in structure and convenient to manufacture.
As another aspect, an embodiment of the present invention further provides an airbag apparatus, as shown in fig. 10, where the airbag apparatus includes an airbag module, and further includes a clamping mechanism provided in the first aspect of the embodiment of the present invention, for mounting the airbag module.
As a further aspect, embodiments of the present invention also provide a steering wheel for a motor vehicle. Fig. 11 is a schematic structural view of a steering wheel for a motor vehicle according to an embodiment of the present invention.
The motor vehicle steering wheel of the embodiment of the invention comprises a steering wheel framework 16, an airbag module and a clamping mechanism provided by the first aspect of the embodiment of the invention; the clamping mechanism is used for installing an airbag module, and at least two contacts 19 are arranged on the steering wheel framework 16; after the clamping mechanism is installed on the steering wheel framework 16, when the clamping mechanism is pressed from the side of the passenger to the side of the steering wheel framework 16, the first clamp spring 14 is contacted with a contact 19 on the steering wheel framework 16.
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 (9)
1. A latch mechanism, comprising: a housing (7), and a cover plate (1) mounted on the housing (7); a space for installing an airbag module is formed between the shell (7) and the cover plate (1); wherein the content of the first and second substances,
a second clamping hook (10) protruding into the shell (7) is arranged on a shell vertical wall (11) of the shell (7), and a clamping groove (3) is arranged on a cover plate vertical wall (2) of the cover plate (1);
in the process of clamping the shell (7) and the cover plate (1), the second clamping hook (10) is inwards clamped with the clamping groove (3);
a through hole (8) is arranged on the shell (7), and a first clamping hook (5) protruding out of the cover plate (1) is arranged on the cover plate (1); in the clamping process of the shell (7) and the cover plate (1), the first clamping hook (5) can penetrate through the through hole (8) and is overlapped on the surface of the shell (7) outwards;
the cover plate (1) is provided with a protruding part (4), and the protruding part (4) extends along the thickness direction of the cover plate vertical wall (2); the first hook (5) is arranged at the end part of the protruding part (4);
a first clamp spring (14) is arranged in the shell (7), the outer side surface of the first clamp spring (14) is abutted against the inner side surface of the first clamping hook (5) so as to apply thrust to the first clamping hook (5), and the first clamping hook (5) is tightly lapped on the surface of the shell (7);
clamping mechanism installs behind steering wheel skeleton (16), presses from passenger side direction steering wheel skeleton (16) side when clamping mechanism, first jump ring (14) contact with contact (19) on steering wheel skeleton (16).
2. Clamping mechanism according to claim 1, characterized in that the projection (4) is provided on the cover standing wall (2) of the cover (1).
3. Clamping mechanism according to claim 2, wherein the through-hole (8) is provided in the bottom surface of the housing (7);
in the process of clamping the shell (7) and the cover plate (1), the first clamping hook (5) penetrates through the through hole (8) and is lapped on the outer surface of the shell vertical wall (11) of the shell (7) and/or the outer surface of the bottom surface of the shell (7).
4. The clamping mechanism according to claim 1, wherein the housing standing wall (11) of the housing (7) is provided with a first positioning portion (9), and the cover standing wall (2) of the cover plate (1) is provided with a second positioning portion (6);
in the clamping process of the shell (7) and the cover plate (1), the first positioning part (9) and the second positioning part (6) are matched to limit the clamping direction between the shell (7) and the cover plate (1).
5. The latch mechanism according to claim 4, wherein one of the first positioning portion (9) and the second positioning portion (6) is a positioning groove, and the other is a positioning projection.
6. Clamping mechanism according to claim 1, characterized in that the first clamping spring (14) is a ring-shaped clamping spring, the two ends of which are arranged in the housing (7) respectively.
7. Clamping mechanism according to claim 1, characterized in that the housing (7) is provided with a connecting hook (15);
in the installation process of the clamping mechanism and the steering wheel framework (16), the connecting clamping hook (15) penetrates through a connecting hole (17) in the steering wheel framework (16) and is clamped with a second clamping spring (18) installed in the connecting hole (17).
8. An airbag arrangement comprising an airbag module, characterized in that it further comprises a snap-in mechanism according to any of claims 1-7 for mounting the airbag module.
9. A motor vehicle steering wheel comprising a steering wheel armature (16), an airbag module, characterized by further comprising a snap-in mechanism according to any of claims 1-7; wherein the content of the first and second substances,
the clamping mechanism is used for mounting the airbag module, and at least two contacts (19) are arranged on the steering wheel framework (16);
clamping mechanism installs behind steering wheel skeleton (16), presses from passenger side direction steering wheel skeleton (16) side when clamping mechanism, first jump ring (14) contact with contact (19) on steering wheel skeleton (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810067217.2A CN110065466B (en) | 2018-01-24 | 2018-01-24 | Clamping mechanism, safety airbag device and motor vehicle steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810067217.2A CN110065466B (en) | 2018-01-24 | 2018-01-24 | Clamping mechanism, safety airbag device and motor vehicle steering wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110065466A CN110065466A (en) | 2019-07-30 |
| CN110065466B true CN110065466B (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810067217.2A Active CN110065466B (en) | 2018-01-24 | 2018-01-24 | Clamping mechanism, safety airbag device and motor vehicle steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110065466B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000238597A (en) * | 1999-02-22 | 2000-09-05 | Nippon Plast Co Ltd | Air bag device |
| KR20060084899A (en) * | 2005-01-21 | 2006-07-26 | 현대모비스 주식회사 | Air-bag and horn switch |
| CN203472779U (en) * | 2013-08-12 | 2014-03-12 | 北京汽车股份有限公司 | Driver safety air bag installation structure and vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7641222B2 (en) * | 2006-10-27 | 2010-01-05 | Autoliv Asp, Inc. | Method and apparatus for airbag module cover attachment |
| WO2013070905A1 (en) * | 2011-11-09 | 2013-05-16 | Key Safety Systems Inc. | Snap in driver side airbag module assembly |
| JP2017039379A (en) * | 2015-08-19 | 2017-02-23 | タカタ株式会社 | Airbag device |
| CN205044693U (en) * | 2015-10-08 | 2016-02-24 | 神龙汽车有限公司 | Steering wheel and air bag's connection structure |
-
2018
- 2018-01-24 CN CN201810067217.2A patent/CN110065466B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000238597A (en) * | 1999-02-22 | 2000-09-05 | Nippon Plast Co Ltd | Air bag device |
| KR20060084899A (en) * | 2005-01-21 | 2006-07-26 | 현대모비스 주식회사 | Air-bag and horn switch |
| CN203472779U (en) * | 2013-08-12 | 2014-03-12 | 北京汽车股份有限公司 | Driver safety air bag installation structure and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110065466A (en) | 2019-07-30 |
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