KR200316361Y1 - A shock absorber by using multi-stage airbags - Google Patents

Abstract

The present invention relates to a shock absorbing device using air bags.

The present invention, a plurality of supports arranged while maintaining a constant interval in sequence;

Guide rails fixed to both sides of the support with bolts and arranged to surround the support from the side; A plurality of airbags positioned between the supports, the upper end of which is fixed to the center of the support, and filled with air and disposed along the inner side of the guide rail; and fixed to the ground on both sides of the support, respectively. And a plurality of fixed rails extending along the guide rails, the side of each support being coupled via a connecting means.

According to the present invention, when an impact object such as a vehicle exerts an impact from the outside, the impact force may be absorbed in multiple stages for a long time to minimize damage to the vehicle and human life.

Description

Shock absorption device using multistage airbag {A SHOCK ABSORBER BY USING MULTI-STAGE AIRBAGS}

The present invention relates to a shock absorbing device using airbags, and more particularly, when the air is blown out from the airbag by absorbing the impact from the outside, the shock absorbed airbags are prevented from being bounced outwards in succession. The present invention relates to a shock absorber using a multi-stage airbag that is improved to enable safe use by stopping and protecting external shocks by allowing air to escape from the airbag.

In general, shock-absorbing devices using an air bag have been proposed in the related art. Such shock absorbers using the airbag are devices that can protect the vehicle and the human life by slowly absorbing and stopping the kinetic energy of the vehicle while the air is released from the airbag when impacts such as a vehicle collide from the outside.

However, the conventional shock absorbing device using the airbag is a fraction of the use of the airbag to effectively absorb the impact force of the external vehicle over a long period of time, and thus the impact force is applied over a short time during the collision of the vehicle, rather The airbag's repulsive force was applied to the vehicle, which caused severe damage to the vehicle, and it was difficult to reduce the casualties.

Therefore, it has been urgent to develop a shock absorbing device that can absorb external impact force over a long time by releasing the air in multiple stages sequentially, and protect the vehicle and the human life safely.

The present invention is to solve the conventional problems as described above, the purpose is to minimize the damage to the vehicle and human life by absorbing the impact force in multiple stages for a long time when the impact material such as a vehicle impacts from the outside The present invention provides a shock absorbing device using a multi-stage airbag.

In addition, the present invention is that when the air is continuously discharged from the airbag connected to the multi-stage by applying the impact force from the outside, the airbags do not deviate to the outside by the impact in order to absorb the impact force in order to improve the impact force of the vehicle in a stable state It is to provide a shock absorbing device using a multi-stage airbag that can be absorbed to minimize damage to the vehicle and life.

1 is an explanatory diagram showing a state in which a shock absorbing device using a multi-stage airbag according to the present invention is mounted on a road;

2 is a perspective view showing an overall shock absorbing device using a multi-stage airbag according to the present invention;

3 is a plan view showing the shock absorbing device using a multi-stage airbag according to the present invention from the upper side;

Figure 4 is a side view showing a shock absorbing device using a multi-stage airbag according to the present invention from the side;

5 is a cross-sectional view showing a shock absorbing device using a multi-stage airbag according to the present invention, a cross-sectional view along the line A-A of FIG.

Figure 6 is an external perspective view showing a shock absorbing device using a multi-stage airbag according to the present invention from the front;

7 is a cross-sectional view of the guide rail and the outer panel provided in the shock absorbing device using a multi-stage airbag according to the present invention;

8 is an explanatory view showing a state in which the appearance is reduced in order as the air is discharged from the outside of the air bag provided in the shock absorbing device using the multistage airbag according to the present invention;

9 is a cross-sectional view showing the structure of the air inlet and the breaking portion of the airbag provided in the shock absorbing device using a multi-stage airbag according to the present invention;

A) to e) of FIG. 10 are explanatory views of various arrangements of airbags according to the speed of the vehicle in the shock absorber using the multistage airbag according to the present invention.

<Description of the symbols for the main parts of the drawings>

1 ..... shock absorbers 3 .... vehicles

5 ..... Road 7 .... Branch

10 .. Support 12a, 12b ... Bolt

19 .... Exterior panel 22 .... Hanger

30 .... airbag 32 .... protruding rib

36 .... breaking 38 .... air inlet

40 ... cap 42 ... diaphragm

50 .... fixing rail 53 .... anchor bolt

55 .... Chain 60 .... Guidance Cable

62a, 62b .... anchor anchor

In order to achieve the above object, the present invention, in the device for protecting the impact material by absorbing the impact applied from the outside using airbags,

A plurality of supports arranged one after the other at constant intervals;

Guide rails fixed to both sides of the support with bolts and arranged to surround the support from the side;

A plurality of airbags positioned between the supports, the upper ends of which are fixed to the center of the supports, and filled with air and disposed along the inner side of the guide rail;

A plurality of fixed rails fixed to the ground on both sides of the support and extending along the guide rails, the side of each support being coupled through a connecting means; It is to provide a shock absorbing device using a multi-stage airbag, characterized in that configured to absorb the impact in multiple stages.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

As illustrated in FIG. 1, the shock absorbing device 1 using the multi-stage airbag according to the present invention may be used as a safety protective device at a branch point 7 or the like of the road 5 on which the vehicles 3 travel at high speed.

The shock absorbing device 1 using the multi-stage airbag 30 of the present invention has a plurality of supports 10 arranged while maintaining constant intervals in a row, as shown in FIGS. 2 and 3. .

The supports 10 may have a door-shaped structure of each □ -shaped cross section, as shown in cross section in FIG. Such supports 10 may be configured to increase in size as it proceeds from the front to the rear side of the shock absorbing device 1 of the present invention, may have the same size as each other as shown in Figure 10a).

And, these supports (10) are each made of a steel structure, each side of the support 10 has a guide rail 12 disposed to surround the support (10) in the side with bolts (12a), respectively. .

Each of the guide rails 12 is a steel sheet whose cross section may have a three-shaped or corrugated cross section, and these are joined in a line using small bolts 12b or the like adjacent to each other, and the support 10 ) Is fixed to both sides of the bolt) with bolts 12a and the like. In addition, the guide rail 12 is curved to form the front surface of the shock absorbing device 1 of the present invention is to form a round head 15 to the front side.

In this way, when the vehicle collides from the outside, the impact force can be effectively dispersed and cushioned.

In addition, the bolts 12a and 12b connecting the guide rails 12 and mounting the guide rails 12 to the support 10 have weak strengths that have not been heat-treated, and are external to a predetermined level or more. When an impact is applied, they are easily broken by the impact. That is, when an impact is applied to the guide rails 12 from the outside, they are broken at the bolts 12a and 12b rather than breaking the guide rails 12 so as to absorb external shocks.

On the other hand, the outer surface of the guide rail 12 as described above may be selectively mounted with an excellent panel 19 excellent cushioning force. The exterior panel 19 has the same cross-sectional structure as the guide rail 12, and is made of polyethylene (PE) foamed resin, etc., and upper and lower edges thereof are respectively shown in FIG. Each of the catches 22 can be integrally formed. The exterior panel 19 of such a structure is to hook the upper part of the guide rail 12 to the hook 22 part of the top and overlap the cross section, and then flex the part of the hook 22 at the lower part somewhat elastically. When elastically fitted to the lower edge of the guide rail 12, it becomes a double panel superimposed with the guide rail 12, thus overlapping the panels 12, 19 on the support (10) Figure 7 Fixing as bolts 12a as shown in the figure, and fixing them as bolts 12b between adjacent ones can be firmly coupled to each other.

Thus, by using the outer panel 19 excellent in elastic force compared to the guide rail 12, it is possible to effectively cushion the impact force of the vehicle and the like.

In addition, the present invention is located between the support 10, the upper end is fixed to the center of the support 10, the inside is filled with air is disposed along the inside of the guide rail 12 It has a plurality of airbags 30.

The airbags 30 are positioned between the support 10 and the inner space of the guide rail 12 as shown in FIGS. 5 and 6, and the inner surface of the body into which the air is injected is wrapped with a nonwoven fabric. The outer surface is coated with a rubber layer or formed of a nonwoven fabric coated with a rubber layer to have a sealing structure. The airbag 30 forms protruding ribs 32 having the bolt holes 32a formed at the centers of the upper and rear edges of the upper portion, respectively, and the bolts 34 at the upper members 10a of the respective supports 10. Fixed).

The airbags 30 disposed as described above may be stably maintained in the space between the supports 10 by connecting the front and rear edges to the top member 10a of the support 10.

In addition, as shown in FIG. 9, the airbag 30 may include an air inlet 38 having a fracture portion 36 formed around the upper surface thereof. The air inlet 38 has a spiral portion 38a formed on an outer surface thereof, and a cap 40 is screwed thereon, and an diaphragm 42 is attached to an inner surface of the air inlet 38 so that the air inlet 38 is formed. By blocking the inside of the air bag 30, the air is easily injected from the outside to the inside, but the air inside the structure is difficult to escape to the outside.

In addition, a thin fracture portion 36 is formed around the air inlet 38 so as to have a smaller cross-sectional thickness than that of the other airbag 30. This means that the breakage portion 36 withstands a certain level of external impact without any damage. However, if a shock of more than a predetermined size is applied, the breakage portion 36 having a thinner cross-sectional thickness than the other portions of the airbag 30 It acts as a safety valve that is destroyed first to allow the release of air.

In this case, the breaking part of the airbag 30 is constant due to a large external shock, and thus maintenance is easy because the operator only needs to check the corresponding part during maintenance of the airbag 30.

And, the impact support 10 according to the present invention is fixed to the ground on both sides of the support 10, respectively, extending in both directions along the guide rail 12, the side of each support 10 It includes a plurality of fixed rails 50 coupled through the connecting means.

The plurality of fixing rails 50 are disposed on both sides of the support 10 along guide rails 12 fixed to both sides of the support 10, as shown in FIGS. 2 and 3, and a plurality of anchor bolts. It is fixed to the ground through the anchor bolts 53. As shown in FIG. 10A, when the airbags 30 are arranged in a line, the fixing rail 50 may be disposed on both sides of the support 10 in parallel, so that the fixing rails 50 may be arranged in parallel. The rails 50 may also be kept parallel to each other.

However, as shown in Figs. 10b) to 10e), the airbags 30 are arranged side by side in parallel from the front to the rear so that the guide rail 12 has a narrow front width and a gradually wider rear width. In the losing structure, the guide rail 12 is also arranged in such a way that its width is narrower between the front side and the width thereof becomes wider toward the rear side.

As shown in FIG. 5, the fixed rail 50 forms a ring for each support 10 on one side, and the support rail 10 connects the chain 55 as a connecting means to each support 10. It is coupled to the ring formed on the side of the support to maintain the support (10) at a constant interval, and at the same time the structure formed by the support (10) and the guide rail 12 is fixed to be in place, not laterally displaced.

As such, the fixing rail 50 fixes both sides of each support 10 through the chain 55 to allow the shock absorbing device 1 of the present invention to be positioned at any one point as a whole.

On the other hand, the shock absorbing device 1 according to the present invention, as shown in Figure 4 to 6, when the impact is applied to the front side of the guide rail 12 from the outside, the airbags 30 from the front side Guiding cables 60 for guiding so as to absorb the shock as the air is sequentially released to the rear side are attached to the lower surface, respectively.

The guide cable 60 has a front end connected to the front fixing anchor 62a of the guide rail 12 and passes through the center of the lower member 10b of each support 10 while proceeding to the rear end. The central hole 39a of the ribs 39 protruding from the lower end of the airbag 30 disposed between the supports 10 is sequentially passed from the front side to the rear side, and the rear end thereof is a guide rail ( 12) is fixed to a fixed anchor 62b located on the rear side of the base 12).

Accordingly, the guide cable 60 is inserted through the lower ends of the airbags 30 arranged between the supporters 10 arranged in a row, and the front and rear ends thereof are fixed anchors 62a and 62b. By binding to each of the) as a result is to perform the role of integrally binding the support (10) and the airbag (30).

On the other hand, the guide cable 60, in the structure in which the airbag 30 is arranged in a row, can support the support 10 and the airbag 30 in one row before and after, as shown in Figure 10b) to Figure 10e) In the structure in which the plurality of airbags 30 are arranged side by side in parallel, two lines are fitted from the front of the support 10 and the airbag 30 from each other in the rear parallel arrangement so as to be divided into fixing anchors 62a and 62b. ) Is bound to

As described above, when the guide cable 60 is impacted from the outside, the support 10 and the airbags 30 are fixed to the ground through the guide cable 60, so that the guide cable 60 is not impacted to the outside. It is prevented from being bounced off, and accordingly guides the movement of the support 10 and the airbag 30 along the guide cable 60 to absorb the shock in turn.

On the other hand, the present invention is to attach a reflector, etc. to the outer surface of the exterior panel 19 to be reflected by the illumination light of the vehicle at night to ensure more stability.

The shock absorbing device 1 using the multistage airbag of the present invention configured as described above is to absorb the shock in multiple stages by the air discharge of the airbag 30 such as an external shock of a vehicle.

The present invention, as shown in Figure 10a, a plurality of supports 10 are arranged in a row, between the airbags 30 are located between them, the support 10 and the airbags 30 from the front The guide rail 12 and the outer panel 19 are attached to surround both sides, and the support 10 and the airbag 30 are fixed to the ground through the guide cable 60 of one or two lines. In addition, the supporters 10 are connected to the fixing rails 50 through chains 55 which are connecting means.

Such a structure can be mounted on roads where the vehicle speed is maintained at 80 km / hr, and the safety factor is taken into account to reduce the speed of approximately 13 ± 0.5 km / hr in the vehicle per airbag 30. In consideration of the design, the installation number of the airbag 30 may be calculated.

10b) and 10c) may be applied when the vehicle speed is approximately 80 to 100 km / hr, which is different from the structure of FIG. 10a). ) Is arranged over three stages, and in order to fix these airbags 30 and the supports 10, two lines of guide cables 60 are arranged.

Also, the structures shown in FIGS. 10d) and 10e) can be applied when the vehicle speed is about 100 km / hr or more, which is arranged in parallel in the rear unlike the structures of FIGS. 10a) and 10b) and 10c). The dual airbags 30 are arranged in multiple stages in three or more stages, and have a structure in which two lines of guide cables 60 are arranged in order to fix these airbags 30 and the supports 10.

As such, according to the present invention, when the impact is applied from the outside, the airbag 30 sequentially absorbs the impact force in multiple stages, thereby minimizing damage to the vehicle by gently absorbing the impact force for a longer time.

If the impact force applied from the vehicle is a large force capable of destroying the breakage portion 36 of the airbags 30, the airbag 30, which serves as a safety valve in turn, starts from the airbag 30 in which the vehicle collides. The breaks 36 are broken and air is discharged to the outside to sequentially buffer the kinetic energy of the vehicle. In such a case, when the airbags 30 are destroyed, it impacts the support 10 supporting the destroyed airbag 30, and the support 10 is connected to the fixed rail 50 by the chain 55. While breaking), it is guided by the guide cable 60 to transmit the impact force to the airbag 30 on its rear side.

And, if the rear airbag 30 is also broken, it impacts the support 10 on its rear side, which supports 10 while cutting the chain 55 connected to the fixed rail 50. It is pushed to the side, and transmits the impact force to the airbag 30 of the rear side.

The impact force by the vehicle is sequentially transmitted from the front airbag 30 toward the rear side through the supports 10 and the airbags 30, and the impact force of the vehicle 10 and the airbag 30 The impact force transmission direction is guided by the guide cable 60 connecting the lower end.

When the airbags 30 and the supports 10 are broken in this way and pushed backward, the guide rails 12 and the exterior panels 19 fixed as bolts on both sides of the support 10 are connected to the bolts 12a. The portion 12b has a structure in which the portion 12b is sequentially pushed backwards and overlapped.

It is a double overlapping guide panel 19 and the outer panel 19 are connected to the support 10 by structurally weak bolts 12a, and also adjacent guide panel 19 and exterior panel 19 ) And the joints are also joined by unheated bolts 12b having weak structures, respectively, and are easily broken at these connecting bolts 12a and 12b, and are pushed to the rear side with the support 10. It has a structure that overlaps.

As described above, according to the present invention, when an impact object such as a vehicle exerts an impact from the outside, damage of the vehicle and human life can be minimized by absorbing the impact force in multiple stages for a long time.

When the air is continuously discharged from the air bags 30 connected in multiple stages by the impact force applied from the outside, the present invention is stabilized by absorbing the impact force in turn without being separated to the outside by the impact. By absorbing the impact force of the vehicle in a state it is possible to minimize the damage of the vehicle and life.

In addition, according to the present invention, since the breakage portion 36 of the airbag 30 is always constant, maintenance of the airbag 30 can be easily maintained, and only the breakage portion 36 can be repaired to reuse the airbag 30. Maintenance costs are low because it can be.

In addition, since the outer side of the guide rail 12, the outer panel 19 made of polyethylene foam or the like is used by overlapping to not only improve the shock absorbing effect, but also to further protect the vehicle and human life will be.

Claims (8)

In the device to protect the impact material by absorbing the impact applied from the outside by using the airbag (30), A plurality of supports 10 arranged in series while maintaining a constant interval; Guide rails 12 fixed to bolts 12a and the like on both sides of the support 10 to surround the support 10 from the side; Located between the support 10, the upper end is fixed to the center of the support 10, the inside of the air is filled with a plurality of air bags 30 disposed along the inside of the guide rail 12 ; And A plurality of fixed rails 50 fixed to the ground on both sides of the support 10, extending along the guide rails 12, and the sides of each support 10 coupled through a connecting means; Shock absorbing device using a multi-stage airbag, characterized in that configured to absorb the external shock, such as a vehicle in multiple stages by the air discharge of the airbag. The method of claim 1, wherein the guide rail 12 is curved to form the front of the shock absorbing device 1 of the present invention is rounded to form a round head 15, the impact using a multistage airbag, characterized in that Absorber. According to claim 1, wherein the outer surface of the guide rail 12 is mounted with an external panel having excellent cushioning force, the outer panel 19 is polyethylene (PE) having the same cross-sectional structure as the guide rail 12 It is made of foamed resin, etc., the upper and lower corners are formed with a plurality of hooks 22 integrally, respectively, the upper and lower ends of the guide rails 12 and overlap the cross-section, and then on the support 10 The shock absorbing device using a multi-stage airbag, characterized in that it has a structure of a double panel by being fixed as bolts (12a). The bolts 12a and 12b according to any one of claims 1 to 3, which connect the guide rails 12 and mount the guide rails 12 to the support 10, have a weak strength without heat treatment. Those, shock absorbers using a multi-stage airbag, characterized in that if the external impact is applied to a certain level or more can be easily broken by the impact. According to claim 1, The air bag 30 is formed with a spiral portion 38a around the air inlet 38, the cap 40 is screwed, the inner surface of the air inlet 38, the diaphragm ( 42 is attached to block the inside of the air inlet 38, so that the air is easily injected from the outside of the air bag 30 to the inside, but the air inside the structure is difficult to escape to the outside, the air inlet Each of the circumferences of the airbag 30 has a smaller cross-sectional thickness than the portions of the airbags 30 having different cross-sectional thicknesses, so that a thin fractured portion 36 is formed so that an impact of a predetermined size or more is applied from the outside. Shock absorbing device using a multi-stage airbag, characterized in that the thin broken portion 36 is first destroyed to release the air. According to claim 1, The plurality of fixing rails 50 are disposed on both sides of the support 10 along the guide rail 12 fixed to both sides of the support 10, a plurality of anchor bolts (Anchor Bolt) It is fixed to the ground through the (53), forms a ring for each support 10 on one side, the ring is connected to the chain formed by the side of each support (10) by connecting the chain 55, the connecting means Combination to maintain the support 10 at a constant interval, and at the same time the structure formed by the support 10 and the guide rail 12 is fixed to be fixed in place, not laterally displaced, the impact using a multi-stage airbag Absorber. The guide cable (60) according to claim 1, wherein when the shock is applied to the guide rail (12), the airbags (30) guide the airbags (30) to absorb the shock while the air is sequentially released from the front side to the back side (60). ), The guide cable 60 has a front end connected to the front fixing anchor 62a of the guide rail 12 and passes through the center of the lower member 10b of each support 10 while proceeding to the rear end. In addition, the center hole 39a of the ribs 39 protruding from the lower end of the airbag 30 disposed between the supporters 10 is sequentially passed from the front side to the rear side, and the rear end of the guide rail ( 12) Shock absorbing device using a multi-stage airbag, characterized in that the binding to the fixed anchor (62b) located on the rear side of the support (10) and the airbag (30) integrally. According to claim 7, wherein the guide cable (60) in the structure in which the airbags 30 are arranged in a row can support the support 10 and the airbags 30 in a row, the plurality of airbags (30) side by side In the structure arranged in parallel, two lines are inserted from the front to the support 10 and the airbag 30 from each other in the rear parallel arrangement portion is characterized in that it is bound to the fixing anchors (62a) (62b) Shock absorption device using a multi-stage airbag.