KR101906731B1 - Airbag expansion prevention device for steering wheel - Google Patents

Abstract

The present invention relates to an airbag deployment prevention device for a steering wheel, and more specifically, to an airbag deployment prevention device for a steering wheel, which is capable of preventing an impact from being applied to a rescuer and a driver when the airbag mounted on the steering wheel malfunctions due to various factors to be deployed, such that the rescuer can safely rescue the driver. Particularly, according to the present invention, the airbag deployment prevention device is mounted on the front surface of the steering wheel while a rescuer such as a firefighter or the like rescues a driver, even if the air bag for the steering wheel malfunctions, the airbag is prevented from deploying toward the rescuer or driver, so that it is possible to perform a rapid rescue while firstly securing the safety of the rescuer and the driver. Further, the airbag deployment prevention device of the present invention can be not only easy to carry and store, but also easily mounted and bound by a rescuer such as a firefighter, thereby enabling a quick rescue for a victim. Therefore, it is possible to improve the reliability and competitiveness in the field of traffic accident prevention and structural goods, as well as in similar or related fields.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an airbag expansion prevention device for a steering wheel,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an airbag deployment floor for a steering wheel, and more particularly, to an airbag deployment floor for a steering wheel in which, when a passenger, And the shock to the driver, and to enable the rescuer to safely rescue the driver.

Particularly, in the present invention, the rescuer of the fire brigade or the like mounts the driver on the front surface of the steering wheel during the construction process, so that even if the airbag for the steering wheel malfunctions, the safety of the rescuer and the occupant is prevented So that the structure of the airbag for the steering wheel can be quickly achieved.

The airbag, which is one of the safeguards to protect the occupant of a vehicle in the event of a traffic accident, is the most typical occupant protection device in addition to the seatbelt. The airbag can be divided into a driver seat airbag, a passenger seat airbag, a side airbag, and a curtain airbag.

Such an air bag includes a detection module and an expansion module, and the detection module is composed of a sensor, a battery, and a diagnostic unit, and the expansion module is composed of an air bag, an operation gas expansion device and the like.

Such an airbag is a safeguard device installed in all vehicles because of its excellent ability to protect occupants (passengers) in the event of a vehicle crash in a traffic accident.

On the other hand, since the airbag is developed with a focus on the protection of a passenger in the event of a vehicle collision, various techniques for developing the airbag in the event of a collision have been developed.

For example, Korean Unexamined Utility Model Publication No. 97-35348 'Vehicle front seat airbag deployment prevention device' (hereinafter referred to as 'Prior Art 1'), which is a prior art document, , It is intended to prevent a safety accident of the infant by the deployment of the airbag by preventing the deployment of the airbag by the ground signal of the buckle switch.

In addition, Korean Patent Registration No. 10-0632219 'Seat belt system for controlling the deployment of an airbag' (hereinafter, referred to as 'Prior Art 2'), which is a prior art document described below, Thereby controlling the deployment direction and intensity of the airbag so as to prevent injury to the occupant due to uniform airbag deployment.

Most of these technologies, including these prior art, are being developed centering on efficient control of the airbag in the event of an accident.

However, one of the accidents involving airbags is overlooked: when a traffic accident occurs, the airbag malfunctions in the process of repairing it, causing harm to the occupant.

For example, when an airbag is deployed due to a malfunction in the structure of a passenger while the airbag is not deployed in a traffic accident, a secondary impact may be applied to the occupant, or dyspnea may be caused.

Most of the airbags are controlled to be deployed when an impact of a predetermined intensity or more is applied at a constant speed or more. Such control is judged by the above-described diagnostic unit.

Therefore, some of the entire traffic accidents may not be deployed.

At this time, there may be a case where it is difficult for the passenger to escape due to a shock caused by a mental shock, a damage of a door, or the like, and external help is needed for various other reasons.

In such a case, a rescuer of a firefighter or the like may work to cut a part of the vehicle or remove the door using a separate device. The airbag may be deployed due to the vibration generated at this time. Such malfunction may be caused by mechanical malfunction of the working gas expansion device, measurement error of the sensor, electronic malfunction such as judgment error of the diagnosis unit, and the like.

In other words, in the event of a car accident, unexpected airbag deployment during the process of rescuing the occupant, especially the driver, may cause the accident victim to be impacted again, and the frontal portion of the face may be pushed to cause difficulty breathing.

In addition, the unintentional deployment of airbags could have a significant impact on rescuers, such as firefighters, who rescue victims of accidents, which could lead to secondary damage.

In addition, since the deployed air bag reduces the efficiency of the rescue operation, it can adversely affect the life maintenance of the patient as the rescue operation is hindered in a traffic accident requiring rapid transfer of the patient.

On the other hand, existing airbag deployment control technologies including the above-described prior arts are mostly based on the electronic control method, and as a result, damage to electronic parts or units is inevitably caused in a traffic accident, to be.

As a result, in the course of carrying out rescue activities in traffic accidents, it was basically impossible to prevent air bag malfunctions based on prior art.

Korea Public Utility Model No. 97-35348 'Airbag deployment prevention device for vehicle front seat' Korean Patent Registration No. 10-0632219 'Seat belt system for controlling air bag deployment'

In order to solve the above-mentioned problems, the present invention is applied to a rescue person and a driver when the airbag mounted on the steering wheel is malfunctioned due to various factors of the inside and outside in the process of rescuing a passenger, And to provide an airbag deployment zone for a steering wheel that allows the rescue to safely rescue the driver.

Specifically, in the present invention, the rescuer of a firefighter or the like mounts the driver on the front surface (the surface facing the driver) of the steering wheel during the construction process so that the driver or the driver does not deploy toward the rescuer even if the air bag for the steering wheel malfunctions And to provide an airbag deployment zone for a steering wheel that can be quickly structured while securing the safety of rescuers and passengers as top priority.

Particularly, the present invention is structured mechanically irrespective of electronic control, in view of the fact that internal electronic parts and modules of the vehicle are inevitably damaged when a traffic accident occurs, And to provide an airbag deployment zone for a steering wheel that enables quick structure.

According to an aspect of the present invention, there is provided an airbag deployment preventing member for a steering wheel, comprising: a main body unit configured to support a front portion of a steering wheel; And a binding unit for binding the main body unit to the steering wheel.

In addition, the main unit may be configured such that a plurality of unit support bands are intersected and disposed radially.

In addition, the unit support strip may include a development inhibiting portion, And a binding support part formed at both ends of the development inhibiting part and formed to be narrower in width and thicker than the development inhibiting part.

Further, the air conditioner may further include a support unit coupled to the main body unit and supporting the airbag deployment portion of the steering wheel.

The main unit may be configured such that a plurality of unit support bands are intersected and radially disposed, and the support unit may be formed in a ring shape and coupled to be orthogonal to the unit support bands.

In addition, the unit support strip may include a development inhibiting portion, And a guide unit coupled to one side of the deployment inhibiting unit, wherein the support unit is slidably coupled by the guide unit.

The supporting unit may be formed in a band shape and may include a folded twist portion formed by twisting between any one of the unit supporting belts and the neighboring unit supporting belts so as to be sequentially joined to the unit supporting belts .

Further, the binding unit may include: a rope configured to sequentially penetrate the binding support portion; And a binding port for supporting binding of the rope.

In addition, the binding member may include at least one of a cord lock and a rope stopper.

In addition, the binding unit may include an emergency locking retractor (ELR).

According to the above-mentioned solution, in the course of repairing the occupant, particularly the driver, when the traffic accident is solved, the airbag mounted on the steering wheel is developed due to external impact or malfunction of the control module of the vehicle, And the like.

Specifically, the present invention is advantageous in that a rescuer such as a firefighter can mount the driver on the front surface of the steering wheel during the construction process, so that the driver or the driver can not be deployed toward the rescuer even if the airbag for the steering wheel malfunctions.

Accordingly, the present invention has an effect that a rapid structure process can be performed while securing the safety of the rescuer and the passenger as the top priority.

Further, the present invention can minimize the impact to the rescuer and the driver when the air bag is deployed due to malfunction by using the fabric material and the rope.

In addition, since the structure of the binding member such as the metal member is located at the rear portion of the steering wheel at the time of installation, it is possible to prevent the driver from being injured due to the construction of the metal material when the airbag is deployed due to malfunction.

Especially, in case of a traffic accident, internal electronic parts and modules of the vehicle are inevitably damaged, so that the objective and effect can be sufficiently secured through an electronic configuration rather than an electronic configuration.

In addition, the present invention is advantageous in that it is easy to carry and store, and it can be easily attached and bound by a rescuer such as a fire brigade to enable a quick structure for a victim while sufficiently securing the rescuer and driver have.

Accordingly, it is possible to improve reliability and competitiveness in the field of traffic accident prevention and structural goods, as well as in similar or related fields.

1 is a perspective view showing an embodiment of an airbag deployment arm for a steering wheel according to the present invention.
FIG. 2 is a view for explaining the unit support band and the main unit shown in FIG. 1 in detail.
Fig. 3 is a view for explaining the support unit shown in Fig. 1 in detail.
FIG. 4 is a view for explaining a state in which the support unit is coupled to the main body unit shown in FIG. 1. FIG.
Fig. 5 is a configuration diagram showing another embodiment of Fig. 1. Fig.
FIG. 6 is a view for explaining an embodiment of the binding means shown in FIG. 5;
7 is a use state diagram for explaining another embodiment of the binding means shown in FIG.
8 is a use state diagram showing still another embodiment of Fig.

The embodiments of the airbag deployment zone for a steering wheel according to the present invention are variously applicable, and the most preferred embodiments will be described below with reference to the accompanying drawings.

1 is a perspective view showing an embodiment of an airbag deployment arm for a steering wheel according to the present invention.

Referring to FIG. 1, an airbag deployment arm A for a steering wheel includes a main body unit 100 and a binding unit 200.

The main body unit 100 is configured to support the front portion of the steering wheel 400, particularly the airbag deployment portion 410, as shown in Fig. 7, so that the airbag can not be deployed toward the driver upon deployment of the airbag due to malfunction .

In particular, when the airbag is deployed due to a malfunction, at least a part of the main body unit 100 is contacted with the rescuer or the driver by the deployment and inflation of the airbag, It is desirable to avoid any further injury to the driver.

In addition, the main body unit 100 is preferably configured in the form of a band so as to effectively resist the inflating force of the airbag when the airbag is deployed due to malfunction.

For example, when the main body unit 100 is formed in a film shape, if the airbag is inflated by a malfunction, the inflating force is applied to the entirety of the main body unit 100. In particular, 100 may swell up to the rescuer or the driver.

On the other hand, when the main unit 100 is formed in a belt shape, if the airbag inflates due to a malfunction, the inflating force can be dispersed to the side.

In other words, the main body unit 100 in the form of a belt can be intensively supported while preventing the airbag from spreading toward the rescuer or the driver due to erroneous operation, May be allowed to expand.

As a result, the belt-shaped main unit 100 can efficiently distribute the pressure due to inflation of the airbag and can greatly improve the supporting force of the center portion, thereby securing the safety for the rescuer and the driver with the highest priority.

The binding unit 200 binds the main body unit 100 to the steering wheel so as to bind the main body unit 100 at the rear portion of the steering wheel 400 as shown in Fig. For example, the binding unit 200 may include a rope.

At this time, the rope as the binding unit 200 may be bound in a knot form by a rescuer such as a fire brigade, but it may take a considerable time to weave the knot.

Accordingly, in the present invention, a structure for quickly binding the main body unit 100 to the steering wheel 400 by a single operation can be added to the binding unit 200, which will be described in more detail below .

1, the airbag deployment unit A for a steering wheel of the present invention includes a support unit 300 coupled to the main unit 100 and supporting the airbag deployment unit 410 of the steering wheel 400, And the support unit 300 will be described in more detail below.

FIG. 2 is a view for explaining the unit support band and the main unit shown in FIG. 1 in detail.

Referring to FIG. 2, the main body unit 100 may be configured such that a plurality of unit support strips 110 are crossed and disposed radially.

1, the unit support band 110 may include a deployment inhibiting portion 111 and a binding supporting portion 112. [

As shown in FIG. 7, the deployment inhibiting portion 111 may be configured so that the center portion of the airbag deployment portion 410 is coupled to the airbag deployment portion 410, as shown in FIG. 2 (b), to support the airbag deployment portion 410 of the steering wheel 400.

Further, the deployment stopper 111 is configured to be in surface contact with the front surface of the steering wheel 400, so that it can perform a function of diffusing the pressure due to inflation of the airbag when the airbag is deployed by malfunction.

For example, when the deployment inhibiting portion 111 is composed of a rope or the like, since the inflation pressure of the airbag is applied in a line contact, the pressure per unit area applied to the rescuer or the driver is inevitably high.

On the other hand, if the deployment-stopping portion 111 is formed in a belt-like shape, the inflation pressure of the airbag is applied in surface contact. Therefore, even if the airbag is pushed to the rescuer or the driver by the inflation of the airbag, Can be minimized.

2 (a), the binding support portions 112 may be formed at both ends in the longitudinal direction of the unfolding blocking portion 111. As shown in Fig.

At this time, since the binding support part 112 has to secure a strong binding force with the rope as the binding unit 200, it is preferable that the width of the binding support part 112 is narrower and the thickness thereof is thicker than that of the development inhibiting part 111.

For example, the binding support portion 112 may be configured such that both side edges in the width direction of the development inhibiting portion 111 are folded inward.

Therefore, even if the rope is strongly pulled and bound by the binding unit 200 as shown in Fig. 7, the binding support unit 112 can maintain the binding state without being damaged.

Accordingly, the main body unit 100 shown in FIGS. 1 and 2B supports the front surface of the steering wheel 400 with a relatively large area, and the central portion thereof supports the airbag deployment portion 410 through the improved supporting force, And the edges can be stably bound to the rope as the binding unit 200 through improved rigidity.

In FIG. 2, reference numeral 114 denotes a handle for allowing the rescuer to easily place the main body unit 100 on the front surface of the steering wheel 400, and one of the plurality of unit supporting belts 110 As shown in Fig.

Fig. 3 is a view for explaining the support unit shown in Fig. 1 in detail.

3 (a), the supporting unit 300 is formed in a strip shape, and a folded twisted portion 301 may be formed by being twisted in a predetermined pattern.

For example, the twist portion 301 may be located between any one unit support band 110 and an adjacent unit support band 100 as shown in FIG.

Accordingly, the support unit 300 can be sequentially coupled to the plurality of unit support belts 110 arranged radially while the front and rear surfaces are repeated.

3 (b), the folded portion 302 may be formed by folding the folded portion 302 such that the folded portion 302 is folded to face the belt- 7). Therefore, when the airbag is deployed and inflated by a malfunction, a situation may occur in which the folded portion 302 strikes the rescuer or the driver. As a result, the rescuer or the driver An injury may occur to the driver's eyes or other parts of the body.

Therefore, it is preferable that the supporting unit 300 is formed such that the twisted portion 301 is formed as shown in Fig. 3 (a).

FIG. 4 is a view for explaining a state in which the support unit is coupled to the main body unit shown in FIG. 1. FIG.

Referring to FIG. 4, the support unit 300 may be formed in a ring shape as shown in FIG. 3, and may include a plurality of unit support strips 110 arranged radially as shown in FIG. 4 (a) Respectively.

At this time, the supporting unit 300 can be coupled by the guide part 113 formed in the unlocking part 111 of each unit supporting strip 110.

More specifically, the support unit 300 can be coupled through the guide hole 113a, which is a portion where the development inhibiting portion 111 and the guide portion 113 are not in tight contact with each other.

In particular, the support unit 300 can be slidably moved by the guide hole 113a of the guide portion 113 so as to easily correspond to the steering wheel 400 of various shapes.

Fig. 5 is a configuration diagram showing another embodiment of Fig. 1. Fig.

Referring to FIG. 5, the binding unit 400 may include a binding member 210 for firmly binding the rope 201 together with the above-described rope 201. Here, since the binding opening 210 is located in the rear direction (leftward direction in FIG. 5) of the airbag deployment bar A for the steering wheel, it is possible to prevent injury to the rescuer or the driver when the airbag is deployed due to malfunction .

To this end, the binding member 210 may be connected to the main body unit 100 by a connection band 210a.

When the main body unit 100 is disposed on the front surface of the steering wheel 400 using the handle 114 and the binding member 210 is disposed on the rear surface of the steering wheel 400, When the end 201a of the steering wheel 201 is pulled and pulled, as shown in Fig. 1, when the rope 201, which is configured to pass through the binding support 112 sequentially, is tightened, The region A may be rigid and tethered to the steering wheel 400.

At this time, it is preferable that the binding device 210 is configured such that the rope 201 can be easily pulled in one direction and the rope 201 is not pulled in the other direction.

Hereinafter, a specific example of the binding member 210 will be described.

FIG. 6 is a view for explaining an embodiment of the binding means shown in FIG. 5;

Referring to FIG. 6, the binding member 210 may include an emergency locking retractor (ELR).

A retractor is a type of wire (rope, string) or band for storing rolls. It is called ELR with the addition of a locking function that prevents wires or strips from being taken out in an emergency.

Such an ELR can be divided into an angle sensing method and a speed sensing method.

The angle detection method is a method of performing a locking function by the inclination of the weight, and is generally applied mainly to a seat belt for a vehicle seat.

The speed sensing system is a system in which a locking function is performed according to the drawing speed of a wire or a belt. The emergency locking retractor of the speed sensing type optimized by the present invention has a wheel shaft on which the rope 201 is wound A fixing plate 212 fixed to the inside of the coupling hole 210 and an inertial plate 213 interlocked with the wheel shaft 211. [

The wheel shaft 211 may be formed with a locking ring 211a which is opened in one direction and the inertia plate 213 is provided with a locking protrusion (not shown) 213a may be configured.

6 (a), when the rescuer pulls the rope 201 (solid line arrow) to install the airbag deployment arm A for the steering wheel on the steering wheel 400, Since the inertia plate 213 also rotates slowly while rotating slowly, the tooth portion of the fixing plate 212 and the tooth portion of the inertia plate 213 are kept apart from each other so that the rope 201 is smoothly pulled .

If the airbag is inflated (box-like arrow) after installation as shown in FIG. 6B, the inertia plate 213 can not rotate together because the wheel shaft 211 rotates instantaneously rapidly.

At this time, the latching protrusion 213a is engaged with the latching ring 211a, and the inertia plate 213 is pushed in one direction, whereby the tooth portions of the fixing plate 212 and the teeth of the inertia plate 213 (B2) the wheel shaft 211 is prevented from being rotated, thereby preventing the rope 201 from being unwound.

As shown in FIG. 7, the rope 201 can be bound using a cord lock 220, and various types of rope stoppers (not shown) As shown in FIG. Here, the method of installing the cord lock 220 and the rope stopper so as not to be released when the rope 201 is pulled has been used in various ways by a person skilled in the art in various fields.

8 is a use state diagram showing still another embodiment of Fig.

Referring to FIG. 8, a protective film 310 may be further provided to block an area from the center of the main body unit 100 to the support unit 300.

The protective film 310 is used to prevent a fire caused by explosion of a gunpowder used for deployment of an airbag when the airbag is deployed. (Opposite side of the handle) of the main body unit 100, or may be formed on the front surface of the main body unit 100 as shown in Fig. 8 (b).

At this time, although the support unit 300 may be omitted while forming the protective film 310 on the main body unit 100, a part of the deployed airbag may be deployed through the side surface, It is preferable that the protective film 310 is further formed.

The airbag deployment zone for a steering wheel according to the present invention has been described above. It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is to be understood, therefore, that the embodiments described above are in all respects illustrative and not restrictive.

A: Airbag deployment zone
100: main body unit
110: unit support band
111: unfolding stopper 112:
113: guide portion 113a: guide hole
200: binding unit 201: rope
210:
211: wheel shaft 211a:
212: Fixing plate
213: inertia plate 213a:
220: Cord rock
300: support unit 301:
310: Shield
400: steering wheel 410: airbag deployment unit

Claims (10)

A main body unit configured to be arranged radially so as to intersect a plurality of unit support bands, the main body unit configured to support a front portion of the steering wheel;
A binding unit for binding the main body unit to the steering wheel; And
And a support unit formed in a ring shape and coupled to the unit support strip so as to be orthogonal to each other to support an air bag deployment portion of the steering wheel,
The unit support band
A development inhibiting portion to which the central portion is crossed and joined; And
And a guide portion coupled to one side surface of the deployment inhibiting portion,
The support unit includes:
Wherein the guide portion is slidably coupled by the guide portion.
The method according to claim 1,
The support unit includes:
And a folded twisted portion is twisted between any one of the unit supporting belts and adjacent unit supporting belts to sequentially connect the unit supporting belts to the unit supporting belts while repeating the front side and the rear side. The expansion room district.
The method according to claim 1,
The main unit includes:
Wherein the plurality of unit support belts are arranged so as to intersect and radially disposed.
The method of claim 3,
The unit support band
A development inhibiting portion to which the central portion is crossed and joined; And
And a tightening support portion formed at both ends of the deployment inhibiting portion and formed to have a narrower width and a thicker thickness than the deployment inhibiting portion.
5. The method of claim 4,
The binding unit includes:
A rope configured to sequentially penetrate the binding support portion; And
And a coupling hole for supporting the coupling of the rope.
6. The method of claim 5,
Preferably,
A cord lock, and a rope stopper. ≪ RTI ID = 0.0 > A < / RTI >
6. The method of claim 5,
Preferably,
Characterized in that the airbag deployment zone comprises a speed sensitive topology emergency lock retractor (ELR). delete delete delete

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