KR100725820B1 - Aid-seatbelt for vehicle - Google Patents

Abstract

The present invention relates to a vehicle safety seat belt, and more particularly, to a vehicle safety seat belt including a protective sheet formed to face each other, and a shock absorbing layer formed between the protective sheet. In addition, the seat belt further includes an impact dispersion layer for dispersing the impact between the protective sheet and the impact buffer layer.

The auxiliary safety belt according to the present invention can be detachably attached to the seat belt of the vehicle, and releases the air contained in the impact mitigating layer by an external shock, thereby protecting the occupant's body safely by reaction thereto.

Seat belt, shock absorber, shock spreader, air release

Description

Vehicle Assist Seat Belts {AID-SEATBELT FOR VEHICLE}

1 is a cross-sectional view of an auxiliary seat belt according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view illustrating a region A of FIG. 1.

3 is a cross-sectional view of an auxiliary seat belt according to a second embodiment of the present invention.

4 is an enlarged cross-sectional view illustrating an area B of FIG. 3 enlarged.

5 is a schematic view showing the mounting of the auxiliary seat belt according to the present invention.

6 is an exemplary view showing that the auxiliary seat belt is applied to the seat belt of the existing vehicle.

The present invention relates to a vehicle safety seat belt that can protect the body of the occupant in the event of a car crash.

A seat belt for a passenger of an existing vehicle fixes the body of the occupant, particularly the shoulder, chest, and abdomen, so as not to cause a fatal injury to the occupant by preventing the occupant from directly hitting the vehicle body in response to the collision. However, since the seat belt maintains a simple band shape, the shock cannot be absorbed at the time of an accident and a shock is directly applied to the human body. In the case of a particularly strong crash, a crash may cause serious damage such as long burst and fracture to the occupant. Very low stability

Therefore, conventionally, an airbag is installed in front of a passenger in a vehicle, and the airbag is inflated instantaneously by an impact during a vehicle accident to protect the body of the occupant. However, these airbags cannot be used to protect the occupants because they are inflated and placed in the space between the occupants and the body before the occupant hits the vehicle body. There is no limit.

As an alternative to this, Japanese Patent Application Laid-Open No. 63-258239 and Korean Patent Registration No. 1994-10717 propose a seat belt equipped with an air bag therein. The seat belt may protect the occupant's body by protecting the upper body of the occupant in case of a vehicle crash. However, the seat belt is usually blown out of the outside and inconvenient to use, and a sensor is installed inside and outside the belt to operate the airbag. And connection should be made, there is a risk of malfunction such as the sensor when using for a long time, there is a disadvantage that the price is expensive to equip all the facilities.

In addition, there is a disadvantage that the safety of the seat belt may be lowered by changing the structure of the seat belt.

Accordingly, it is an object of the present invention to provide an auxiliary seat belt for a vehicle that can safely protect the occupant's body in the event of a vehicle crash.                         

Another object of the present invention is to provide an auxiliary safety belt for a vehicle equipped with an impact mitigating layer that can release the air inside the belt during a collision of the vehicle and mitigate the impact by reacting thereto.

Still another object of the present invention is to provide an auxiliary safety belt for a vehicle, which is further provided with an impact dispersing layer that can disperse an external impact together with the impact alleviating layer.

In addition, another object of the present invention is to provide a secondary safety belt for a vehicle that can be detachable and applicable to a vehicle safety belt of an existing vehicle.

The present invention provides a vehicle safety seat belt including a protective sheet formed to face each other and at least one or more shock absorbing layers formed between the protective sheets.

In this case, the vehicle safety seat belt further includes at least one impact dispersion layer for absorbing the impact between the protective seat and the shock absorbing layer.

Hereinafter, the present invention will be described in more detail.

The vehicle safety seat belt according to the present invention protects the rider's body by releasing the air trapped in the impact mitigating layer while receiving a collision or other sudden impact of the vehicle from the outside while reacting thereto.

1 is a cross-sectional view of an auxiliary seat belt according to a first embodiment of the present invention.

Referring to FIG. 1, the auxiliary safety belt includes protective sheets 10a and 10b formed to face each other, and an impact buffer layer 20 formed between the protective sheets 10a and 10b.

The protective sheets 10a and 10b should have smooth movement of air generated from the impact mitigating layer 20 due to external impact, and the weaving structure and density of the fabric are not particularly limited in the present invention, but have elasticity and tensile strength. It is preferable.

The main purpose of the protective sheet (10a, 10b) is to cover the impact buffer layer contained therein is preferably a material that can sufficiently withstand the frictional force of the use of the auxiliary seat belt. Although not particularly limited in the present invention as the material of the protective sheet (10a, 10b), synthetic fibers such as polyester, polyurethane-polyester copolymer and polyamide such as nylon 6, nylon 66, nylon 46 and Use materials selected from natural fibers such as cotton and rayon.

The woven form and structure of the fabric constituting the protective sheet 12 is not particularly limited, but is preferably a woven plain, double woven, or two-layer woven form. In the case of plain weave, a 1up-1down (1 × 1; light weft, weaving one weft) structure is the most representative, and a commonly used water jet loom or air jet loom Weaving). The double woven or double layer woven structure is woven into a 1up-1down structure in the same way as plain weave using a Jacquard loom. The weaving of the fabrics described above is appropriately selected by those skilled in the art and made through an automated process.

Such a protective sheet 12 has a thickness of 200 to 800 µm, and air permeability must be within a range of 0.1 to 20% at a pressure of 125 pa in accordance with ASTM D 737 to maintain airtightness, and is sufficient for compressed air. It is preferable to have a tensile strength of 90 to 300 Kgf / in, preferably 100 to 200 Kgf / in by ASTM D 5034-GRAB method to withstand.

As shown in FIG. 2, the impact mitigating layer 20 has a foam structure in which air is collected in the impact mitigating layer 20, thereby compressing the impact mitigating layer 20 itself during a vehicle crash. Afterwards, the collected air is released to recover the reaction caused by the elasticity generated to protect the body of the occupant.

The impact buffer layer 20 is preferably a foamed polymer having a material having high elasticity, tensile strength and hardness, and specifically, polyurethane, polyethylene, polypropylene, polystyrene, and nitrile-butadiene rubber (NBR)) may be used. The foamed polymer has a closed cell structure or a porous structure so that air can be trapped therein, wherein the desired pore size and foaming ratio are determined by the amount of blowing agent, foaming temperature and pressure. By adjusting, the impact applied from the outside is properly controlled.

The shock absorbing layer 20 is absorbed by the air of the foamed polymer to the initial impact applied from the outside, the absorbed energy due to the high resilience of the elastic material forming the impact buffer layer 20 to the elastic force And the elastic force is resolved as the release of air trapped in the impact mitigating layer 20.

The impact mitigating layer 20 is formed of a multilayer of two or more layers by varying the material, the size of the pores and the foaming ratio to mitigate the impact applied.

As such, the manufacturing method of the vehicle safety seat belt according to the first embodiment follows the conventional manufacturing method of the seat and is not limited in the present invention. As an example, the protective sheet is prepared by preparing a sheet having a density of 0.01 Kg / m ² or more and a hardness of 2 Kg / 314 cm ² or more so as to have a predetermined size of width × length × thickness = 30cm × 7cm × 1.5cm. It is made by coating with. Here, as shown in FIG. 6, a separate buckle is positioned at one side of the protective seat for attachment to the seat belt for a vehicle. As a result, the vehicle safety seat belt according to the present invention is fastened to the existing seat belt for the vehicle, it is located between the seat belt and the driver and the passenger to achieve the effect.

In addition, the auxiliary seat belt according to the present invention further includes an impact dispersing layer for dispersing external impacts between the protective sheet and the impact releasing layer.

3 is a cross-sectional view of an auxiliary seat belt according to a second exemplary embodiment of the present invention, and FIG. 4 is an enlarged cross-sectional view of a region B of FIG. 3.

Referring to FIG. 3, the auxiliary safety belt according to the second embodiment includes protective sheets 50a and 50b formed to face each other, an impact buffer layer 70 formed inside the protective sheets 50a and 50b, and An impact dispersion layer 60 formed between the impact mitigating layer 70 and the protective sheets 50a and 50b is provided.

The impact dispersion layer 60 is for minimizing the injury by solving the stress concentration caused by the pressure applied during the collision of the vehicle body, as shown in Figure 4 produced a material having a high elasticity and tensile strength in the form of a grid Applies a mesh type wick as a frame.

Breakage of the material against the external impact with the impact dispersion layer 60 has a bend, if the external applied pressure is removed by applying a material that can be restored to form the injury by the frame of the impact dispersion layer 60 You can prevent it. The impact dispersion layer 60 is preferably an elastomer material, and more preferably, an elastomer polymer of polyester, polyurethane, polyethylene, polypropylene, polystyrene, and nitrile-butadiene rubber (NBR) material.

Thus, the manufacturing method of the vehicle safety seat belt according to the second embodiment further provided with the impact dispersion layer 60 is as follows.

First, the elastic polymer is manufactured in the form of a rod (rod-type), and then staggered with each other to cross or stacked in a lattice form of a predetermined size to produce an impact dispersion layer (60).

Next, the impact dispersion layer 60 is placed between the impact mitigating layers 70 prepared by the above mentioned first embodiment, and then coated with protective sheets 50a and 50b, and then shown in FIG. 6. As shown, a separate buckle is placed on one side of the protective seats 50a and 50b for attachment to the seat belt for the vehicle.

At this time, the shape of the wick (elastic polymer) applied to the frame of the impact dispersion layer 60 is not limited in the present invention, the rod shape is appropriate in consideration of the ease of manufacture, the diameter, shape and woven structure of the wick is greatly It is not limited.

 Although the impact dispersion layer 60 is shown as a single layer for convenience in FIG. 3, two or more layers may be formed between the protective sheets 50a and 50b and the shock absorbing layer 70 as needed.

The auxiliary seat belt as described above is manufactured in a form that can be attached and detached to the seat belt itself of the vehicle, it can be modified in various forms. Preferably, taking into account that the seat belt of the existing vehicle increases the probability of injury by concentrating tension on the shoulder of the occupant in the event of a vehicle crash, the form of the auxiliary seat belt according to the present invention is designed to protect the shoulder of the occupant. Can be produced in a bent form to wrap.

At this time, the fastening part is mounted to one side of the auxiliary seat belt in order to detach and attach the seat belt of the existing vehicle. The fastening part attaches an adhesive material such as a velcro to a front or part of one side of the auxiliary safety belt in contact with the general safety belt, or has a ring-shaped connection member into which the safety belt can be inserted and fastens with the safety belt of the existing vehicle.

5 is an exemplary view showing that the auxiliary seat belt according to the present invention is applied to a seat belt of an existing vehicle. The upper seat of the seat belt, that is, the shoulder portion of the occupant, is present through a fastening part provided in the auxiliary seat belt. It is mounted on the seat belt of the vehicle.

6 is a view showing the occupant wearing the auxiliary seat belt of the present invention.

Referring to FIG. 6, the auxiliary seat belt according to the present invention is mounted to a seat belt of an existing vehicle through a fastening part, and positioned to surround a chest part and a shoulder of the occupant, and the body of the occupant, particularly the shoulder and The entire chest area is secured.

 Therefore, when the auxiliary seat belt according to the present invention is mounted on the seat belt of a general vehicle and receives a vehicle crash accident or other sudden impact from the outside, an impact applied to the occupant in response to the air trapped in the shock mitigating layer is released. To mitigate and protect the occupant's body.

In addition, since the auxiliary safety belt is usually in a crimped state, it does not feel uncomfortable when the auxiliary safety belt is worn, and it is possible to attach or detach the safety belt of an existing vehicle and install it in the seat of a passenger other than the driver. By doing so, the application object is expanded.

Claims (11)

An auxiliary safety belt for a vehicle including a protective sheet formed to face each other, and at least one shock absorbing layer formed between the protective sheets, The protective sheet has a thickness of 200 to 800 ㎛, air permeability measured by ASTM D 737 0.1 to 20%, tensile strength measured by ASTM D 5034-GRAB method is 90 to 300 Kgf / in, The vehicle safety seat belt is provided with at least one impact dispersion layer between the protective seat and the shock absorbing layer. The method of claim 1, wherein the protective sheet is made of at least one material selected from the group consisting of polyester, polyurethane-polyester copolymer, polyamide, nylon 6, nylon 66, nylon 46, cotton and rayon of an elastic material A vehicle safety seat belt, characterized in that. delete         The auxiliary safety belt for a vehicle according to claim 1, wherein the impact mitigating layer has a foam structure including pores.         The auxiliary safety belt for a vehicle according to claim 1, wherein the impact mitigating layer is formed of a foamed polymer material.         6. The vehicle safety seat belt according to claim 5, wherein the foamed polymer is at least one material selected from the group consisting of polyurethane, polyethylene, polypropylene, polystyrene, and nitrile-butadiene rubber. delete The auxiliary safety belt for a vehicle according to claim 1, wherein the impact dispersing layer has a mesh type wick formed by laminating elastic polymers manufactured in a rod shape in a lattice form. The secondary safety belt of claim 1, wherein the impact dispersion layer is made of at least one material selected from the group consisting of polyurethane, polyethylene, polypropylene, polystyrene, and nitrile-butadiene rubber (NBR). 2. The vehicle safety seat belt of claim 1, wherein the vehicle safety seat belt includes a separate fastening part to be detachable. 2. The vehicle safety seat belt of claim 1, wherein the vehicle safety seat belt is manufactured in a curved form.

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