CN110843717A - Steering wheel airbag mounting structure - Google Patents
Steering wheel airbag mounting structure Download PDFInfo
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- CN110843717A CN110843717A CN201911201545.8A CN201911201545A CN110843717A CN 110843717 A CN110843717 A CN 110843717A CN 201911201545 A CN201911201545 A CN 201911201545A CN 110843717 A CN110843717 A CN 110843717A
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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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Abstract
The invention belongs to the technical field of vehicle bodies, and particularly relates to an air bag mounting structure of a steering wheel. The high-frequency vibration airbag solves the technical problems that high-frequency vibration between an existing airbag base and a steering wheel causes collision abnormal sound and the like. This steering wheel gasbag mounting structure includes the steering wheel body and airbag base, be equipped with a plurality of location portion on airbag base's the bottom surface, be equipped with on the steering wheel body and supply location portion male mounting hole one, location portion includes spacing post and a plurality of deformation post around spacing post interval setting, the clearance has between deformation post and the spacing post, one side that spacing post was kept away from to the deformation post supports with the inner wall of mounting hole one and leans on. The invention can reduce abnormal sound generated by vibration of the airbag and the airbag base relative to the steering wheel body.
Description
Technical Field
The invention belongs to the technical field of vehicle bodies, and particularly relates to an air bag mounting structure of a steering wheel.
Background
At present, the steering wheel of most motor vehicles integrates functions of steering, horn, safety air bag protection and the like, and the safety air bag is increasingly paid attention to as an auxiliary device for passive safety of the vehicle body. Generally, a steering wheel and an airbag are separately made into modules, and then the two modules are assembled together when being loaded by a main engine plant.
When the driver pressed the gasbag, the vehicle whistle, when not pressing, the vehicle did not whistle, so lead to the fixed mode between gasbag and the steering wheel to need adopt floated fixed, the gasbag can produce the function that the motion triggered whistle for the steering wheel under the effect of external force promptly, adopts the spring to support between its gasbag and the steering wheel, and the spring generally cup joints on the reference column, and the reference column is inserted on the locating hole of steering wheel.
Generally, manufacturing tolerance and fit tolerance are reserved for smooth installation of the air bag and the steering wheel, so that a gap is reserved between an air bag positioning column and a steering wheel positioning hole. For example, the assembly of an airbag module and a steering wheel is disclosed in the national patent application (publication number: CN 104245433B; published Japanese 2018.08.07), and gaps are formed between the peripheries of airbag positioning columns and steering wheel positioning holes. When a vehicle passes through a bumpy road surface, particularly a road surface which enables the vehicle to vibrate at a high frequency, at the moment, a gap between the positioning column and the positioning hole can cause the air bag to drive the positioning column to move in the positioning hole at a high frequency, and abnormal sound is generated by collision.
In addition, metal parts such as clamp springs and clamping hooks are arranged in the airbag module, the metal parts collide with the metal parts in vibration, and generally, two metal parts generate linear contact during collision to cause sharp abnormal sound.
Disclosure of Invention
The present invention provides a steering wheel airbag mounting structure aiming at the above problems in the prior art, and the technical problems to be solved by the present invention are: how to reduce the vibration noise between the airbag module and the steering wheel.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a steering wheel body gasbag mounting structure, includes the steering wheel body and airbag base, be equipped with a plurality of location portion on airbag base's the bottom surface, be equipped with on the steering wheel body and supply location portion male mounting hole one, location portion includes spacing post and a plurality of deformation post around spacing post interval setting, the clearance has between deformation post and the spacing post, one side that spacing post was kept away from to the deformation post supports with the inner wall of mounting hole one and leans on.
When the airbag and the steering wheel body are installed, the positioning part on the airbag base can be inserted into the first installation hole on the steering wheel body, and due to the fact that a gap exists between the deformation column and the limiting column, when the positioning part is inserted into the first installation hole, the top of the deformation column can be drawn close to the limiting column, the gap between the deformation column and the limiting column is reduced, the size of the positioning part is reduced, the positioning part can enter the first installation hole smoothly, the limiting column can avoid excessive deformation of the deformation column, and meanwhile the structural strength of the positioning part can be improved; after the installation is finished, when the positioning part is positioned in the first installation hole, one side, away from the limiting column, of the deformation column abuts against the inner wall of the first installation hole, a gap between the deformation column and the limiting column recovers and is slightly compressed, so that the positioning part has a reaction force of mutual abutting against the inner wall of the first installation hole, and the positioning part has buffering capacity, therefore, even if an automobile is bumpy, the positioning part and the inner wall of the first installation hole can not be separated and impacted, and the generation of vibration abnormal sound is reduced; spacing post makes location portion bulk strength promote, and the deformation post can produce deformation when the car takes place to acutely jolt, leans on until propping up with spacing post, and spacing post can avoid the deformation post to produce too big deformation volume and fracture, secondly because spacing post and the effect that the clearance between the deformation post can play the buffering, further reduction the gasbag base for the vibrations abnormal sound between the steering wheel body.
At foretell steering wheel body gasbag mounting structure, still be equipped with the reference column on the bottom surface of gasbag base, location portion is located the lower half of gasbag base, the reference column is located the upper half of gasbag base, be equipped with on the steering wheel body and supply reference column male mounting hole two, the top lateral wall of reference column supports with the inner wall of mounting hole two and leans on. Because the gasbag receives the effect of self gravity, when the vehicle takes place to jolt, the gasbag is bigger than ascending impact relatively the decurrent impact of steering wheel body, so set up location portion in the latter half of gasbag base, cushion foretell impact through the clearance between spacing post and the deformation post. A positioning column is arranged at the upper half part of the air bag base, and the outer side wall above the positioning column is abutted against the second mounting hole to form an interference fit state; when the automobile vibrates up and down, the upper half part and the lower half part of the airbag base are abutted to the automobile steering wheel body, so that the condition that the airbag base vibrates up and down relative to the steering wheel body is reduced, and the generation of vibration abnormal sound is reduced.
At foretell steering wheel body gasbag mounting structure, the below and the left and right sides of spacing post all are equipped with at least one deformation post, mounting hole one is oval poroid, one side that spacing post was kept away from to the deformation post supports with the circular arc section of mounting hole one and leans on. Because gasbag self gravity is down, and the first half and the lower half of gasbag base all are interference fit's state with the car steering wheel body, make the clearance between spacing post and the deformation post produce the micro-compression, make the below of location portion and the deformation post of the left and right sides all keep the state of leaning on with the circular arc section in the mounting hole one, make location portion receive the reaction force the same with each deformation post variable direction, make gasbag base receive the support of upper and lower, left and right all directions. When the automobile shakes, the relative inertial force generated by the airbag and the steering wheel body can be offset by the counterforce on the deformed column, so that the relative positions of the airbag and the airbag base and the steering wheel body are better kept, and the generation of abnormal vibration sound is reduced.
At foretell steering wheel body gasbag mounting structure, the below and the left and right sides of spacing post all are equipped with at least one deformation post, mounting hole one is the round hole form, one side that spacing post was kept away from to the deformation post offsets with the inner wall of mounting hole one and leans on. Because gasbag self gravity is down, and the first half and the lower half of gasbag base all are interference fit's state with the car steering wheel body, make the clearance between spacing post and the deformation post carry out the micro-compression, the deformation post that makes the locating part lie in spacing post below and left and right sides all keeps the state of leaning on with the circular arc section in the mounting hole one, make the locating part receive the reaction force the same with each deformation post variable direction, make the gasbag receive the support of upper and lower, left and right all directions. When the automobile shakes, the relative inertial force generated by the airbag and the steering wheel body can be offset by the counterforce on the deformed column, so that the relative positions of the airbag and the airbag base and the steering wheel body are better kept, and the generation of abnormal vibration sound is reduced.
In the steering wheel body airbag mounting structure, the top of the positioning column is provided with the guide column of which the circumferential size is smaller than that of the positioning column. Because gasbag base lower part is provided with the location portion of bearing the component and includes spacing post and deformation post, deformation post structural strength is relatively more weak, and first one and the lower half of gasbag base all be interference fit's state with the car steering wheel body, for avoiding the fracture of deformation post when installing, the reference column that structural strength is relatively stronger need pack into mounting hole two earlier, plays good positioning. The guide post that circumference size is less than the reference column has not only increased the axial length of reference column, plays good preferential positioning effect, can play good guide effect moreover, easy to assemble.
In the steering wheel body airbag mounting structure, the positioning column and the guide column are provided with deformation grooves along the axial direction, and the deformation grooves enable the positioning column and the guide column to be divided into a left lobe and a right lobe. When the automobile vibrates, the positioning column provided with the deformation groove and the guide column have certain buffering allowance, so that vibration abnormal sound is reduced; secondly, due to the arrangement of the deformation groove, the guide column and the positioning column can generate micro deformation to facilitate installation during assembly.
In foretell steering wheel body gasbag mounting structure, the first half of gasbag base is equipped with two reference columns that set up along the direction about the steering wheel body, and the lower half of gasbag base is equipped with two location portions that set up along the direction about the steering wheel body, the interval is less than the interval between two location portions between two reference columns, the distance of mounting hole lower part inner wall to two upper portion inner walls of mounting hole is less than the distance of reference column top lateral surface to the deformation post lateral surface of spacing post below. Because the distance from the inner wall of the lower part of the mounting hole to the inner wall of the upper part of the mounting hole is smaller than the distance from the outer side surface of the upper part of the positioning column to the outer side surface of the deformation column below the limiting column, after the installation of the airbag base and the steering wheel body is completed, the gap between the limiting column and the deformation column is slightly compressed, so that the lower part of the positioning part and the deformation columns on the left side and the right side are kept in a leaning state with the arc section in the mounting hole I, and the positioning part is subjected to the reaction force with the same direction as the direction of. At the moment, the component force of the reaction force in the upward direction is greater than the gravity of the air bag and the air bag base, so that the outer side surface above the positioning column and the inner wall of the upper part of the mounting hole II can be kept in a leaning state, and the reaction force of a certain degree exists between the outer side surface above the positioning column and the inner wall of the upper part of the mounting hole II. When the automobile shakes, the relative inertial force generated by the airbag and the steering wheel body installed on the airbag base can be offset by the reaction force on the deformation column which is positioned on the airbag base and deforms, the relative position of the airbag base and the steering wheel body is better kept, the positioning column and the positioning portion are prevented from moving and colliding in the mounting hole II and the mounting hole I, and the generation of abnormal vibration is reduced. Secondly because the interval between two reference columns is less than the interval between two location portions, two reference columns and two location portions and steering wheel body carry out the installation cooperation, present isosceles trapezoid and distribute. Because the gasbag receives the effect of self gravity, when the vehicle takes place to jolt, gasbag and gasbag base impact than ascending impact downwards relative to the steering wheel body is big, and isosceles trapezoid distributes and can improve the stability of gasbag base lower part under the support prerequisite of equal spring force, because the impact that gasbag and gasbag base self gravity produced when alleviating vibrations, has further reduced the condition production of vibrations abnormal sound.
At foretell steering wheel body gasbag mounting structure, still install jump ring installation boss on the gasbag base, be equipped with the mounting groove on the jump ring installation boss, be equipped with the jump ring in the mounting groove, be equipped with on the steering wheel body and to the spacing trip of jump ring, the parcel has the cushion collar that can cushion the impact force between jump ring and the trip on the surface of jump ring, the cushion collar adopts the flexible material preparation. Can install the spring on the conventional air bag base, the spring can make air bag base have one with its effort of releasing the steering wheel body, the jump ring can form the antagonism with this effort, because jump ring and spring all have certain elasticity, lead to there being the condition of striking between jump ring and the trip, through the impact between the buffer sleeve that parcel flexible material made on the surface of jump ring can cushion the two, reduce striking abnormal sound.
In the steering wheel body airbag mounting structure, the outer surface of the buffer sleeve is provided with a buffer plane arranged around the clamp spring, and the buffer plane is arranged opposite to the inner wall of the clamp hook. The mode of plane-to-plane contact is adopted, and sharp abnormal sound generated by line-to-plane contact is avoided.
Compared with the prior art, the invention has the following advantages:
1. the positioning part on the air bag base is abutted against the bottom and the left side and the right side of the first mounting hole in the steering wheel body, and the positioning column is abutted against the top of the second mounting hole, so that abnormal sounds generated by relative movement and mutual impact of the air bag and the air bag base relative to the steering wheel body can be reduced.
2. Have four location structure between gasbag base and the steering wheel body, present isosceles trapezoid and distribute, can balance the gasbag X, Y, Z three direction atress after the installation more evenly, further reduction gasbag is for rocking between the steering wheel, reduces the production of vibrations abnormal sound.
3. Although the positioning part and the positioning column on the airbag base and the first mounting hole and the second mounting hole on the steering wheel body respectively form an interference fit state of mutual abutting, the steering wheel body and the airbag base are convenient to assemble through the deformation groove, the guide column, the spacing column and the clearance between the deformation columns.
4. Through at the peripheral buffering cover that wraps up of jump ring, and have the buffering plane on the buffering cover, can make to form the form of plane and plane contact between trip and the buffering cover, avoid the sharp-pointed type abnormal sound that line and face contact produced.
Drawings
Fig. 1 is an exploded view of the present steering wheel airbag mounting structure.
Fig. 2 is a rear partial view of the present steering wheel airbag mounting structure.
Fig. 3 is a rear partial view of the steering wheel body.
Fig. 4 is a bottom view of the bladder bottom shell.
Fig. 5 is a schematic structural diagram of the positioning part and the mounting hole after assembly.
Fig. 6 is a schematic structural diagram of the positioning column after being assembled with the second mounting hole.
Fig. 7 is a partial enlarged view I of fig. 4.
Fig. 8 is a partial enlarged view II of fig. 4.
Fig. 9 is a partial enlarged view II I of fig. 2.
Fig. 10 is a schematic diagram of the relative position structure between the snap spring and the hook.
In the figure, 1, a steering wheel body; 2. an airbag base; 3. a positioning part; 3a, a limiting column; 3b, deformation columns; 4. a first mounting hole; 5. a second mounting hole; 6. a positioning column; 7. a guide post; 8. a deformation groove; 9. a clamp spring mounting boss; 10. a clamp spring; 11. a buffer sleeve; 12. a buffer plane; 13. a hook is clamped; 14. and (4) mounting the groove.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
The first embodiment is as follows:
as shown in fig. 1, 2 and 4, the steering wheel airbag mounting structure includes a steering wheel body 1 and an airbag base 2 mounted on the steering wheel body 1, two positioning portions 3 are provided on a bottom surface of the airbag base 2, the positioning portions 3 are located at a lower half portion of the airbag base 2, and the two positioning portions 3 are provided along a left-right direction of the steering wheel body 1; two positioning columns 6 are further arranged on the bottom surface of the airbag base 2, the positioning columns 6 are located on the upper half portion of the airbag base 2, and the two positioning columns 6 are arranged along the left and right directions of the steering wheel body 1.
As shown in fig. 1, 2, 5, and 6, the steering wheel main body 1 is provided with a first mounting hole 4 into which the positioning portion 3 can be inserted and a second mounting hole 5 into which the positioning post 6 can be inserted, and the second mounting hole 5 is a circular hole or a horizontally disposed oval hole-shaped through hole, and is preferably a oval hole-shaped through hole. The first mounting hole 4 is a kidney-round hole-shaped or round-hole-shaped through hole which is vertically arranged compared with the second mounting hole 5, and a kidney-round hole-shaped through hole is preferably adopted.
As shown in fig. 2, 4, 5 and 8, the positioning portion 3 includes a stopper post 3a and deformation posts 3b spaced around the stopper post 3 a. The number of the deformation columns 3b is three, the deformation columns are respectively located below and on the left side and the right side of the limiting columns 3a, gaps are formed between the limiting columns 3a and the deformation columns 3b, the bottoms of the limiting columns 3a and the deformation columns 3b are jointly arranged on the air bag base 2, and the three are integrally formed. When the positioning part is installed, the inner wall of the first installation hole 4, which is contacted with the top of the deformation column 3b, is closed towards the direction of the limiting column 3a, so that the gap between the deformation column 3b and the limiting column 3a is reduced, the size of the positioning part 3 is reduced, the positioning part 3 can smoothly enter the first installation hole 4, and the limiting column 3a can increase the structural strength of the positioning part 3 while avoiding excessive deformation of the deformation column 3 b; after the installation is finished, when the positioning part 3 is positioned in the mounting hole I4, one side, away from the limiting column 3a, of the deformation column 3b abuts against the inner wall of the mounting hole I4, a gap between the deformation column 3b and the limiting column 3a recovers, and under the action of the gravity of an air bag, the deformation column 3b deforms towards the limiting column 3a, the gap between the limiting column 3a and the deformation column 3b is slightly compressed, so that the positioning part 3 has a reaction force abutting against each other relative to the inner wall of the mounting hole I4, and the positioning part 3 has buffering capacity; spacing post 3a makes 3 bulk strength in location portion promote, and deformation post 3b can produce deformation when the car takes place to acutely jolt, leans on until propping up with spacing post 3a, and spacing post 3a can avoid deformation post 3b to produce too big deformation volume and fracture, secondly because spacing post 3a and the clearance between the deformation post 3b can play the effect of buffering, further reduction gasbag base 2 for the vibrations abnormal sound between the steering wheel.
As shown in fig. 2, 4 and 7, the outer side of the deformation column 3b has an arc surface abutting against the arc section of the lower inner wall of the first mounting hole 4.
As shown in fig. 2, 4, 6 and 7, when the airbag base 2 and the steering wheel body 1 are assembled, the positioning column 6 needs to be inserted, the guide column 7 is arranged at the top of the positioning column 6, the circumferential dimension of the guide column 7 is smaller than that of the positioning column 6, the axial length of the positioning column 6 and the guide column 7 is larger than that of the positioning part 3, the positioning column 6 and the upper surface of the guide column 7 are in the same plane and abut against the inner wall of the second mounting hole 5, and the guide column 7 is arranged to facilitate the assembly of the airbag base 2 and the steering wheel body 1. The guide post 7 may be in the shape of a cylinder, a cone, a semi-cylinder, or a rectangular parallelepiped, and a semi-cylinder guide post 7 is preferably used.
As shown in fig. 2, 4, 6 and 7, the positioning post 6 and the guide post 7 are provided with deformation grooves 8 along the axial direction thereof, and the deformation grooves 8 divide the positioning post 6 and the guide post 7 into left and right halves. When the automobile vibrates, the positioning column 6 and the guide column 7 which are provided with the deformation grooves 8 have certain buffering allowance, so that vibration abnormal sound is reduced; secondly, due to the arrangement of the deformation groove 8, the guide column 7 and the positioning column 6 can generate micro deformation during assembly, so that the installation is convenient.
As shown in fig. 1, 2, 5 and 6, since the distance from the lower inner wall of the first mounting hole 4 to the upper inner wall of the second mounting hole 5 is smaller than the distance from the outer side surface above the positioning column 6 to the outer side surface of the deformation column 3b below the limiting column 3a, after the airbag base 2 and the steering wheel body 1 are mounted, the gap between the limiting column 3a and the deformation column 3b is slightly compressed, so that the deformation columns 3b below and on the left and right sides of the positioning portion 3 are kept in a state of abutting against the arc sections in the first mounting hole 4, and the positioning portion 3 is subjected to a reaction force in the same direction as the deformation direction of each deformation column 3 b. At this time, the component force of the reaction force in the upward direction is greater than the gravity of the airbag and the airbag base 2, so that the outer side surface above the positioning column 6 and the inner wall of the upper part of the second mounting hole 5 can be kept in a contact state, and the outer side surface above the positioning column 6 and the inner wall of the upper part of the second mounting hole 5 have a certain degree of reaction force. When the automobile shakes, the inertia force generated by the airbag installed on the airbag base 2 and the steering wheel body 1 can be offset by the reaction force on the deformation column 3b which is positioned on the airbag base 2 and deforms, so that the relative position of the airbag base 2 and the steering wheel body 1 is better kept, the positioning column 6 and the positioning part 3 are prevented from moving and colliding in the mounting holes II 5 and I4, and the occurrence of shaking abnormal sound is reduced. Secondly because the interval between two reference columns 6 is less than the interval between two location portion 3, two reference columns 6 and two location portion 3 and steering wheel body 1 carry out the installation cooperation, present isosceles trapezoid and distribute. Because the gasbag receives the effect of self gravity, when the vehicle takes place to jolt, gasbag and gasbag base 2 will be bigger than ascending impact relatively the decurrent impact of steering wheel body 1, and isosceles trapezoid distributes and can improve the stability of gasbag base 2 lower part under the support prerequisite of equal spring force, because the impact that gasbag and gasbag base 2 self gravity produced when alleviating vibrations, has further reduced the condition production of vibrations abnormal sound.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 9 and fig. 10 are shown, be equipped with jump ring installation boss 9 on steering wheel body 1, be equipped with mounting groove 14 on jump ring installation boss 9, be equipped with jump ring 10 in the mounting groove 14, be equipped with on steering wheel body 1 and can be to jump ring 10 spacing trip 13, the parcel has the cushion collar 11 that can cushion impact force between jump ring 10 and the trip 13 on jump ring 10's the surface, buffer plane 12 around jump ring 10 setting has on the surface of cushion collar 11, buffer plane 12 sets up with the inner wall of trip 13 relatively, cushion collar 11 adopts the flexible material preparation. Can install the spring on the conventional gasbag base 2, the spring can make the gasbag have one with an effort that its pushed out the steering wheel, jump ring 10 can form antagonism with this effort, because jump ring 10 all has certain elasticity with the spring, lead to there being the condition of striking between jump ring 10 and the trip 13, 11 buffer covers through wrapping up the cushion collar that flexible material made on jump ring 10's surface can cushion the striking between the two, reduce striking abnormal sound, through setting up buffer plane 12 at 11's surface of buffer cover, make between trip 13 and the cushion collar 11 be in the form of plane and plane contact when the collision, avoid the sharp-pointed type abnormal sound that line and surface contact produced. The flexible material may be plastic, rubber, etc.
Example two:
the present embodiment is substantially the same as the first embodiment, and the difference is:
the airbag base 2 is provided with three positioning parts 3, the positioning parts 3 are arranged in a triangular shape, the upper half part of the airbag base 2 is provided with one positioning part 3, and the lower half part is provided with two positioning parts 3 arranged along the left-right direction of the airbag base. The steering wheel body 1 is provided with mounting holes corresponding to the three positioning portions 3.
The positioning part 3 positioned on the upper half part of the airbag base 2 is abutted against the inner wall above the mounting hole, particularly, the outer side wall of the deformation column 3b above the limiting column 3a is abutted against the inner wall of the mounting hole. The location portion 3 that is located gasbag base 2 the latter half supports with the inner wall below the mounting hole and leans on, specifically, the lateral wall of the deformation post 3b of spacing post 3a below supports with the inner wall of mounting hole and leans on. An interference fit is formed between the airbag base 2 and the steering wheel body 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although terms such as a steering wheel body, an airbag base, a positioning portion, a limiting column, a deformation column, a first mounting hole, a second mounting hole, a positioning column, a guide column, a deformation groove, a snap spring mounting boss, a snap spring, a cushion sleeve, a cushion plane, a snap hook, a mounting groove and the like are used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (9)
1. The utility model provides a steering wheel gasbag mounting structure, includes steering wheel body (1) and airbag base (2), be equipped with a plurality of location portion (3) on the bottom surface of airbag base (2), be equipped with on steering wheel body (1) and supply location portion (3) male mounting hole (4), its characterized in that, location portion (3) including spacing post (3a) and around a plurality of deformation post (3b) that spacing post (3a) interval set up, the clearance has between deformation post (3b) and spacing post (3a), one side that spacing post (3a) were kept away from in deformation post (3b) supports with the inner wall of mounting hole (4) and leans on.
2. The steering wheel airbag mounting structure according to claim 1, wherein a positioning column (6) is further disposed on the bottom surface of the airbag base (2), the positioning portion (3) is located on the lower half portion of the airbag base (2), the positioning column (6) is located on the upper half portion of the airbag base (2), a second mounting hole (5) into which the positioning column (6) can be inserted is formed in the steering wheel body (1), and an upper outer side wall of the positioning column (6) abuts against an inner wall of the second mounting hole (5).
3. The steering wheel airbag mounting structure according to claim 2, wherein at least one deformation column (3b) is arranged below and on the left side and the right side of the limiting column (3a), the mounting hole I (4) is in a kidney-shaped hole shape, and one side, away from the limiting column (3a), of the deformation column (3b) abuts against the arc section of the mounting hole I (4).
4. The steering wheel airbag mounting structure according to claim 2, wherein at least one deformation column (3b) is arranged below and on the left and right sides of the limiting column (3a), the mounting hole I (4) is in a circular hole shape, and one side of the deformation column (3b) far away from the limiting column (3a) abuts against the inner wall of the mounting hole I (4).
5. Steering wheel air bag mounting structure according to claim 2 or 3 or 4, characterized in that the positioning post (6) is provided at its top with a guiding post (7) having a smaller circumferential dimension than the positioning post (6).
6. The steering wheel airbag mounting structure according to claim 5, wherein the positioning post (6) and the guide post (7) are provided with deformation grooves (8) along the axial direction thereof, and the deformation grooves (8) divide the positioning post (6) and the guide post (7) into left and right halves.
7. The steering wheel airbag mounting structure according to claim 6, wherein the upper half portion of the airbag base (2) is provided with two positioning pillars (6) arranged in the left-right direction of the steering wheel body (1), the lower half portion of the airbag base (2) is provided with two positioning portions (3) arranged in the left-right direction of the steering wheel body (1), the distance between the two positioning pillars (6) is smaller than the distance between the two positioning portions (3), and the distance from the lower inner wall of the first mounting hole (4) to the upper inner wall of the second mounting hole (5) is smaller than the distance from the outer side surface above the positioning pillar (6) to the outer side surface of the deformation pillar (3b) below the limit pillar (3 a).
8. The steering wheel airbag mounting structure according to claim 1 or 2 or 3 or 4, characterized in that a clamp spring mounting boss (9) is further mounted on the airbag base (2), a mounting groove (14) is formed in the clamp spring mounting boss (9), a clamp spring (10) is arranged in the mounting groove (14), a clamping hook (13) capable of limiting the clamp spring (10) is arranged on the steering wheel body (1), a buffer sleeve (11) capable of buffering impact force between the clamp spring (10) and the clamping hook (13) is wrapped on the outer surface of the clamp spring (10), and the buffer sleeve (11) is made of a flexible material.
9. The steering wheel airbag mounting structure according to claim 8, wherein the cushion collar (11) has a cushion flat surface (12) on an outer surface thereof disposed around the clamp spring (10), the cushion flat surface (12) being disposed opposite to an inner wall of the hook (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911201545.8A CN110843717A (en) | 2019-11-29 | 2019-11-29 | Steering wheel airbag mounting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911201545.8A CN110843717A (en) | 2019-11-29 | 2019-11-29 | Steering wheel airbag mounting structure |
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| CN110843717A true CN110843717A (en) | 2020-02-28 |
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| CN201911201545.8A Pending CN110843717A (en) | 2019-11-29 | 2019-11-29 | Steering wheel airbag mounting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111559337A (en) * | 2020-05-18 | 2020-08-21 | 奇瑞汽车股份有限公司 | Steering wheel and driver airbag matching structure |
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| CN103648885A (en) * | 2011-07-12 | 2014-03-19 | Tk控股公司 | Airbag and horn switch module and method of assembly of the module |
| CN104773129A (en) * | 2015-03-30 | 2015-07-15 | 奇瑞汽车股份有限公司 | Steering wheel and driver safety airbag module matching structure |
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