CN106915323B - Automobile steering wheel assembly - Google Patents
Automobile steering wheel assembly Download PDFInfo
- Publication number
- CN106915323B CN106915323B CN201511000933.1A CN201511000933A CN106915323B CN 106915323 B CN106915323 B CN 106915323B CN 201511000933 A CN201511000933 A CN 201511000933A CN 106915323 B CN106915323 B CN 106915323B
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- steering wheel
- pair
- hub
- correcting member
- wheel assembly
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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)
- Steering Controls (AREA)
Abstract
The present application relates to automotive steering wheel assemblies. The invention provides an automobile steering wheel assembly which comprises a steering wheel and an air bag module, wherein the steering wheel comprises a hub and a pair of spoke parts extending from the hub, and a pair of opposite gaps are formed between the outer edge of the top of the air bag module and the inner side surfaces of the spoke parts. 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.
Description
Technical Field
The invention relates to an automobile steering wheel, in particular to an automobile steering wheel component provided with an air bag component.
Background
With the increasingly competitive market of each large automobile manufacturer, the quality requirements of the products provided by each large automobile manufacturer are higher and higher. Among them, the steering wheel of the automobile is the product most closely related to the driver in the automobile interior products, and has higher requirements on the appearance, the shape and the like. The matched appearance of the driver airbag and the steering wheel is used as an important item in appearance and modeling requirements, the two sides of a matched gap between the driver airbag and the steering wheel are required to be symmetrical, the tolerance value of the symmetry degree is not more than 0.4mm, and no obvious difference exists in visual inspection.
As shown in fig. 1, fig. 1 shows a schematic view of the fitting of an airbag according to the prior art to a steering wheel. The steering wheel 2 'rotates about a steering axis L'. A pair of positioning posts 11 'are formed on the housing of the airbag 1', a pair of positioning holes 21 'are formed on the steering wheel 2', and the airbag 1 'is positioned in a horizontal direction with respect to the steering wheel 2' when the positioning holes 21 'and the positioning posts 11' are aligned. A pair of opposed gaps are now formed between the top outer edge of the air-bag 1 'and the inner faces of a pair of opposed spokes on the steering wheel 2'.
In the steering wheel 2 ', a pair of positioning holes 21' are formed symmetrically with respect to the axial axis L 'of the steering wheel 2' during the manufacturing process. When the steering wheel 2 'is foamed to form a foam body coated on a pair of spokes, the inner side surface of the foam body forms a new symmetry degree relative to the steering shaft L'. Subsequently, the final trim mounted on the pair of spokes covered with the foam body is formed again with a new degree of symmetry with respect to the steering shaft L'. The accumulated deviation of the symmetry with respect to the steering shaft L ' during the above-described processing and assembling processes makes it impossible to achieve a predetermined symmetry in the gap formed by the mounted airbag 1 ' with respect to the steering wheel 2 ', and thus an ideal visual effect cannot be achieved.
Disclosure of Invention
The invention aims to provide an automobile steering wheel assembly, which can improve the matching appearance of an air bag relative to a steering wheel, so that the symmetry of a pair of opposite gaps formed between the outer edge of the top of the air bag and the steering wheel is within an allowable deviation range.
The invention provides an automobile steering wheel assembly, which comprises a steering wheel and an air bag assembly, wherein the steering wheel comprises a hub and a pair of spoke parts extending from the hub, gaps are respectively formed on the outer top edge of the air bag assembly and the inner side surfaces of the spoke parts opposite to the air bag assembly, the automobile steering wheel assembly further comprises a position calibration part for positioning the air bag assembly, a mutually matched positioning structure is arranged between the position calibration part and the air bag assembly, the air bag assembly is positioned and mounted on the position calibration part, the positioning structure limits the relative movement of the position calibration part and the air bag assembly in a horizontal plane, the position calibration part is mounted on the hub, and the position of the position calibration part on the hub is determined as, Such that the gap sizes of the gaps are approximately equal.
Preferably, the pair of spoke portions includes a pair of spokes covered with a foam, and the gap is formed between the top outer edge of the airbag module and the side surface of the pair of spokes opposite thereto in the foam.
Preferably, the pair of spoke portions includes a pair of spokes covered with a foam and an integrated ornamental block mounted above the pair of spokes, and the gap is formed between the top outer edge of the airbag module and the inner side of the integrated ornamental block.
Preferably, the mutually-matched positioning structure between the airbag module and the position calibration part comprises a pair of positioning holes/positioning columns formed on the position calibration part and a pair of positioning columns/positioning holes formed on the airbag module, and the positioning columns are aligned with the positioning holes and are inserted and matched with the positioning holes.
Preferably, the longitudinal center axis of the airbag module and the longitudinal center axis of the position correcting member substantially coincide in the horizontal direction.
Preferably, the position correcting member is positioned on the hub such that a longitudinal center axis of the position correcting member and a longitudinal center axis between the inner side surfaces of the pair of spoke portions substantially coincide in a horizontal direction.
Preferably, the longitudinal central axis of the position calibration part is a central axis of symmetry of the pair of positioning holes/positioning posts.
Preferably, the hub is formed with a position correcting member mounting hole, the position correcting member is formed with a mounting portion for mounting into the position correcting member mounting hole, and a size of the position correcting member mounting hole in the horizontal direction is larger than a size of the mounting portion of the position correcting member.
Preferably, the steering wheel assembly further comprises a functional component fixed to the hub, the position calibration component being indirectly mounted to the hub by being fixedly mounted to the functional component.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings, like numbering represents like elements, and wherein:
fig. 1 is a schematic view showing the fitting of an airbag with a steering wheel according to the prior art.
Fig. 2 is a schematic sectional view illustrating one embodiment of a steering wheel assembly for an automobile according to the present invention.
Fig. 3 is an exploded perspective view illustrating one embodiment of a mounting structure of a position correcting member and a wheel hub in an automotive steering wheel assembly according to the present invention.
FIG. 4 is a schematic view illustrating the mounting of a position calibration component to a hub according to one embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention are described with reference to the drawings. The following detailed description and drawings are illustrative of the principles of the invention, which is not limited to the preferred embodiments described, but is defined by the claims.
Fig. 2 shows a cross-sectional view of one embodiment of an automotive steering wheel assembly in accordance with the present invention. As shown in fig. 2, the automobile steering wheel assembly 100 includes a steering wheel 10 and an airbag assembly 20. The steering wheel 10 includes a hub 11 forming a base of the steering wheel, a pair of spoke portions 12 extending from the hub 11, and an annular steering rim 13 connected to the hub 11 via the spoke portions 12. The steering wheel 10 defines a steering axis L about which the steering wheel 10 is rotatable by operation of a driver. The pair of spoke portions 12 are substantially symmetrically distributed on both sides of the steering axis L with respect to the steering axis L.
The airbag module 20 is mounted on the hub 11 by a position correcting member 30 in the present invention. The airbag module 20 includes a housing, an inflatable airbag housed within the housing, an airbag inflation device and a cover covering the top of the housing. The top outer edge of the airbag module 20 and the inner side surface of each of the pair of spoke portions 12 are formed with gaps S1 and S2, respectively. The gap is defined as the distance between the top outermost edge of the airbag module 20 and the inner side surface of the spoke portion 12 in the horizontal direction shown in the drawing, i.e., the X direction, in a sectional view taken perpendicular to a pair of hubs.
As shown in fig. 2, there is a cooperative positioning structure between the airbag module 20 and the position correcting member 30. In the present embodiment, a pair of positioning posts 21 are formed on the bottom of the airbag module 20, and a pair of positioning holes 37 are formed on the position correcting member 30. After the pair of positioning posts 21 are inserted into the pair of positioning holes 37, the relative movement of the position correcting member 30 and the airbag module 20 in the horizontal plane perpendicular to the steering axis L is restricted. I.e. locking the relative position of the two in the horizontal plane. In the present embodiment, the positions of the positioning hole 37 and the positioning post 21 are selected such that, when they are mated, the longitudinal center axis D1 of the airbag module 20 and the longitudinal center axis D2 of the position correcting member 30 substantially coincide in the X direction.
As shown in fig. 3, fig. 3 is an exploded perspective view illustrating one embodiment of a mounting structure of a position correcting member and a wheel hub in a steering wheel assembly for an automobile according to the present invention. The position correcting member 30 is a member that is bilaterally symmetrical along the longitudinal center axis D2. Specifically, the position correcting member 30 includes a first portion 32 and a second portion 33 that are symmetrically disposed, and the first portion 32 and the second portion 33 are connected by a connecting arm 34 to form an integral structure. The first and second portions include a mounting boss 35 of a larger size and a mounting portion 31 of a smaller size. The mounting portion 31 projects downward from the bottom of the first portion 32 and the second portion 33, is inserted into the position correcting member mounting hole 101 formed on the hub 11, and the mounting boss 35 is seated above the position correcting member mounting hole 101 of the hub 11. The first portion 32 and the second portion 33 are formed with positioning holes 37 for engagement with the positioning posts 21 of the airbag module 20, respectively. In the present embodiment, the pair of positioning holes 37 are symmetrically disposed, and the central axis of symmetry of the pair of positioning holes 37 is the longitudinal central axis D2 of the position correcting member 30.
As shown in fig. 3, a position correcting member mounting hole 101 is formed in the hub 11, and the mounting portion 31 of the position correcting member 30 is inserted into the position correcting member mounting hole 101 such that the position correcting member 30 is seated on the hub 11. The dimension of the position correcting member mounting hole 101 in the X direction (X direction in fig. 2) is larger than the dimension of the mounting portion 31, so that the position correcting member 30 allows adjustment of the position correcting member 30 in the horizontal direction (X direction in fig. 2) with respect to the hub 11 during mounting, and after the position of the position correcting member 30 in the X direction with respect to the hub 11 is determined, it is fixed to the hub 11. In the present embodiment, the position of the position correcting member 30 on the hub 11 is determined such that the longitudinal center axis D2 of the position correcting member 30 and the longitudinal center line between the inner side surfaces of the spoke portions 12 substantially coincide in the horizontal direction. Such that the lateral gaps S1 and S2 formed by the airbag module 20 and the pair of spoke portions 12 are approximately equal in size when the airbag module 20 is positionally fixed to the position correcting member 30, where S1 and S2 are approximately equal in size means that the tolerance between the sizes of S1 and S2 is not greater than 0.4 mm.
After the position correcting member 30 is aligned in the position correcting member mounting hole 101, the position correcting member can be fixed to the hub 11 by mounting bolts. The following will describe how the position of the position calibration member 30 on the hub 11 is determined.
In the assembling process of the steering wheel assembly 100 of the automobile, the position correcting member 30 is mounted on the positioning tool 200, as shown in fig. 4, and fig. 4 is a schematic view illustrating the mounting of the position correcting member and the wheel hub according to an embodiment of the present invention. The longitudinal center axis D2 of the position correcting member 30 and the longitudinal center axis E of the positioning tool 200 coincide in the X direction, and the mounting portion 31 of the position correcting member 30 is aligned with the position correcting member mounting hole 101 on the hub 11 in the vertical direction (the direction of the longitudinal center axis E). The position calibration component 30 can be driven to move in the X direction by the movement of the positioning tool 200 in the X direction, so that the position of the position calibration component 30 can be determined by determining the position of the positioning tool 200. As shown in fig. 4, force balance mechanisms 201 extend from the left and right sides of the positioning tool 200. By horizontally moving the positioning tool 200 in the X direction to balance the force balance mechanism 201, the position of the central axis between the left and right two detection points of the inner side surfaces of the pair of spoke portions 12 can be found. When the force balance mechanism 201 reaches the force balance, the longitudinal central axis E of the positioning tool 200 coincides with the central axis between the left and right detection points of the inner side surfaces of the pair of spoke portions 12. The center axis between the right and left detection points of the inner side surfaces of the pair of spoke portions 12 is defined as the longitudinal center axis between the inner side surfaces of the pair of spoke portions 12. The longitudinal center axis D2 of the position correcting member 30 and the longitudinal center axis between the inner side surfaces of the spoke portions 12 at this time substantially coincide in the horizontal direction. Preferably, in the present embodiment, the mounting position of the position correcting member 30 on the hub 11 is determined such that the longitudinal center axes of the pair of positioning holes 37 on the position correcting member 30 substantially coincide with the longitudinal center line between the inner side faces of the pair of spoke portions 12 in the horizontal direction. After the position of the position correcting member 30 in the horizontal plane is determined, the position correcting member 30 is vertically seated on the position correcting member mounting hole 101 of the hub 11 with the position of the position correcting member 30 in the horizontal plane being maintained, and is fixed in place with screws.
In the embodiment shown in fig. 2, the lateral gap (in the X direction in fig. 2) formed by the airbag module 20 and the pair of spoke portions 12 refers to the gap between the top outside edge of the airbag module 20 and the inside faces of the pair of spoke foams opposed thereto. In the actual product, can also install the decoration on a pair of opposite spoke, the decoration is integrated with functions such as stereo set control knob. In another embodiment of the present invention, an integrated ornamental block is mounted on a pair of spokes, and the top outer edge of the airbag module 20 is formed with gaps from the inner side of the integrated ornamental block mounted above the pair of spokes, respectively. The step of mounting the position correcting member 30 on the hub 11 is performed after the integrated ornamental block is mounted on the pair of spokes. The position of the position calibration member 30 is moved by the positioning tool 200, and the central axis position between the left and right two detection points of the inner side surface of the integrated decorative block opposite to the top outer edge of the airbag module 20 is found, so that the longitudinal central axis E of the positioning tool 200 is approximately coincident with the central axis between the two detection points of the integrated decorative block. At this time, the longitudinal center axis D2 of the position correcting member 30 also substantially coincides with the center axis of the inner side surface of the integrated ornamental block attached to the pair of spokes in the X direction, and the position correcting member 30 is vertically seated on the position correcting member attachment hole 101 of the hub 11 with the position of the member being maintained in the horizontal plane and fixed in place with screws.
In the present invention, the hub 11 may be further provided with a functional component, which may be, for example, an electrical contact component, and the position correcting member 30 may be indirectly mounted on the hub 11 through the functional component. The position of the position calibration member 30 mounted on the functional component is determined in the same manner as the position of the position calibration member 30 directly mounted on the hub 11, and thus the detailed description is given before, and the detailed description is omitted here.
In the present invention, it should be understood by those skilled in the art that the positioning structure in which the airbag module 20 and the position correcting member 30 are fitted to each other is not limited to only the structure shown in fig. 2 as long as the positioning structure can restrict the relative movement of the airbag module 20 and the position correcting member 30 in the horizontal plane. For example, the positioning hole 37 may alternatively be formed on the airbag module 20, and accordingly, the positioning column 21 may also alternatively be formed on the position correcting member 30. As another example, the locating feature may be a specially shaped mating portion of a unitary structure that limits relative movement of the airbag module 20 and the position calibration component 30 in a horizontal plane.
Likewise, the shape and structure of the position correcting member 30, and the position correcting member mounting hole 101 on the hub 11 that is fitted with the position correcting member 30 are not limited to those shown in fig. 3, and both may be replaced or otherwise provided that the position correcting member 30 can be fixed to the hub 11 at a certain position. For example, according to one embodiment, a sliding groove may be formed on the hub 11, a sliding block may be formed on the position calibration member 30, the position calibration member 30 may be adjusted relative to the mounting position of the hub 11 by sliding engagement of the sliding groove and the sliding block, and the positioning position of the two may be fixed by a fixing structure after being aligned.
While the invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the construction and methods of the embodiments described above. On the contrary, the invention is intended to cover various modifications and equivalent arrangements. In addition, while the various elements and method steps of the disclosed invention are shown in various example combinations and configurations, other combinations, including more, less or all, of the elements or methods are also within the scope of the invention.
Claims (8)
1. An automobile steering wheel assembly comprising a steering wheel and an air-bag module, the steering wheel including a hub and a pair of spoke portions extending from the hub, the air-bag module having a top outer edge and inner side surfaces of the pair of spoke portions opposed thereto formed with gaps, respectively, wherein,
the automotive steering wheel assembly further comprises a position calibration component for positioning the airbag assembly, the position calibration component and the airbag assembly having cooperating positioning structures therebetween, the airbag assembly being positionally fixed to the position calibration component, the positioning structures limiting relative movement of the position calibration component and the airbag assembly 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 sizes of the gaps are substantially equal, an
The mutually matched positioning structure between the air bag component and the position calibration part comprises a pair of positioning holes/positioning columns formed on the position calibration part and a pair of positioning columns/positioning holes formed on the air bag component, and the positioning columns are aligned with the positioning holes and are in insertion fit.
2. The automotive steering wheel assembly of claim 1, wherein the pair of spoke portions comprises a pair of spokes coated with foam, and the gap is formed between a top outer edge of the airbag assembly and an inner side surface of the foam of the pair of spokes opposite thereto.
3. The automobile steering wheel assembly of claim 1, wherein the pair of spoke portions includes a pair of spokes coated with a foam and an integrated trim piece mounted over the pair of spokes, and the gap is formed between an outside top edge of the airbag assembly and an inside surface of the pair of integrated trim pieces opposite thereto, respectively.
4. The automotive steering wheel assembly of claim 1, wherein the longitudinal center axis of the airbag assembly and the longitudinal center axis of the position calibration component substantially coincide in a horizontal direction.
5. The automotive steering wheel assembly of claim 1, wherein the position calibration member is positioned on the hub such that a longitudinal center axis of the position calibration member and a longitudinal center axis between the inner side surfaces of the pair of spoke portions substantially coincide in a horizontal direction.
6. The automotive steering wheel assembly of claim 4 or 5, wherein the longitudinal central axis of the position calibration component is a central axis of symmetry of the pair of locating holes/locating posts.
7. The automobile steering wheel assembly according to claim 1, wherein the hub is formed with a position correcting member mounting hole formed with a mounting portion for mounting into the position correcting member mounting hole, the position correcting member mounting hole having a size in the horizontal direction larger than that of the position correcting member mounting portion.
8. The automotive steering wheel assembly of claim 1, wherein the steering wheel assembly further comprises a functional component secured to the hub, the position calibration component being indirectly mounted to the hub by being fixedly mounted to the functional component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000933.1A CN106915323B (en) | 2015-12-28 | 2015-12-28 | Automobile steering wheel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000933.1A CN106915323B (en) | 2015-12-28 | 2015-12-28 | Automobile steering wheel assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106915323A CN106915323A (en) | 2017-07-04 |
| CN106915323B true CN106915323B (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511000933.1A Active CN106915323B (en) | 2015-12-28 | 2015-12-28 | Automobile steering wheel assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN106915323B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843717A (en) * | 2019-11-29 | 2020-02-28 | 浙江吉润汽车有限公司 | Steering wheel airbag mounting structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2301339B1 (en) * | 2006-03-13 | 2009-05-01 | Dalphi Metal España S.A. | CAR FLYWHEEL WITH FLOATING CLAXON. |
| DE102008046195B4 (en) * | 2008-09-06 | 2016-08-11 | Autoliv Development Ab | Airbag facility |
| JP5203512B2 (en) * | 2008-12-05 | 2013-06-05 | タカタ・ペトリ アーゲー | Steering wheel assembly for automobile |
| CN103909894B (en) * | 2013-01-09 | 2016-04-27 | 上海通用汽车有限公司 | The connecting device of air bag module and frame of handwheel |
| CN103921752B (en) * | 2014-04-02 | 2016-09-28 | 延锋百利得（上海）汽车安全***有限公司 | A kind of steering wheel being provided with supplementary restraint system module location device |
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2015
- 2015-12-28 CN CN201511000933.1A patent/CN106915323B/en active Active
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| Publication number | Publication date |
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| CN106915323A (en) | 2017-07-04 |
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