KR930004514Y1 - Air-bag - Google Patents

Abstract

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Description

Safety device for occupant protection by air bag

1 is an external view showing the configuration of the present invention.

Figure 2 is an exploded perspective view of the extrusion gas operating mechanism installed in the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is an operating state of FIG.

5 is a cross-sectional view taken along the line C-C of FIG.

6 is an operating state of the present invention.

7 is a plan view showing an installation example of the present invention.

8 is a cross-sectional view as a modification of the compressed gas operating mechanism shown in FIG.

9 is an external view showing a modified embodiment of the configuration of FIG.

10 is an embodiment of an airbag storage mechanism for implementation in FIG.

FIG. 11 is a plan view showing an installation example of FIG.

* Explanation of symbols for main parts of the drawings

1: compressed gas operating mechanism 2: air bag storage mechanism

3: power hose 4: outer frame

5: cover body 6: weight

7: Tangier Spring 8: Operation Link

11 sheet 12 gas supply fixing member

13 gas pressure container 14 operator

15: spring 19: punched pin

30: outer case 31: cover body

33: airbag

The present invention relates to a safety device for occupant protection of a vehicle that can be mounted inside the vehicle to protect the occupant by an air bag (Air Bag) formed by operating the compressed gas operating mechanism in the event of a crash.

In general, safety devices for occupant protection by airbags are classified electronically or mechanically. In the case of electronics, the device consists of an input sensing part through a sensor, a comparative judgment part using a computer, and an output part to ignite the airbag. Is complicated, difficult to manufacture, and expensive, which puts a heavy burden on general users, which causes problems in practical use.In particular, in the case of an aging vehicle or a vehicle in which parts are replaced in the middle, a malfunction occurs in the input sensing part. It does not work properly and the airbag deployment probability is gradually lowered, resulting in problems that are not 100% operational.

In the case of mechanical type, there is an “airbag shockproof device” of Korean Patent Application No. 90-2187 (Publication No. 91-15452, published on September 30, 1991). When the liver is pushed, the spring hammer hammers the ball pins to puncture the compressed gas tank, and the compressed gas is injected into the airbag through the gas discharge outlet, and the airbag expands momentarily to form a mattress protection wall to protect passengers during a collision. It is configured so that the following problems are exposed.

First, in pressing the movable additional L, the front end of the movable weight is formed at the vertical end, so that the pressing operation is not smooth.

Second, when pressurizing between L by the movable weight, the part where L-terminal and the coal hammer come into contact with each other is structurally defective, so that it cannot be locked correctly or the release of lock cannot be made reliably.

Third, when the coal hammer is unlocked from L and the operation is performed by the spring, the punch pin is pressurized. However, since the angle of the coal hammer hammering the punch pin is almost vertical, the press operation of the punch pin is not smooth. There is a problem that does not even press the drilling pins, but rather the operation of the two ends are broken.

Fourth, in the case of the airbag is manufactured in a mattress shape, the airbag inflation speed is slow during operation and does not match the shape of the occupant of the occupant to prevent some impact in the event of a crash, but there is a point that can damage the human body.

The present invention provides a safety device for occupant protection by means of an airbag that is mechanically applied as a shock detection method, rather than an electronic response method, to solve such problems in the related art. It enables the operation, the configuration of the airbag storage device can be quickly separated during operation, and the shape of the airbag itself is formed in accordance with the formation of the human body, so that the damage to the human body can be minimized while operating due to the collision of the vehicle. In addition, even if the aging of the vehicle or the replacement of parts during use of the vehicle, the purpose is to enable smooth operation and to prevent malfunction.

In order to achieve the above object, Utility Model Application No. 91-19000 has been devised.

Based on the draft of such a draft, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the safety device of the present invention is separately formed by the compressed gas actuator 1 and the airbag receiving mechanism 2, and the compressed gas actuator 1 and the airbag receiving mechanism 2 are compressed. The air supply hole is connected to each other by the power hose (3) is made to be fixed on the interior ceiling of the vehicle.

As shown in FIGS. 1 to 4, the compressed gas operating mechanism 1 has an outer frame 4 and a cover 5 having an outer shape, and a central partition 4a inside the outer frame 4. It is partitioned about the center, but on one side of the weight (6) around the buffer packing (9) is installed in the rear so that the tangled spring spring (7) is fitted to be compressed and the front operation link (8) on one side It is installed on the sheet 11 fixed to the inside of the outer frame 4 so as to move around the hinge portion 10, the pressure gas vessel 13 in the rear portion around the gas supply fixing member 12 on the other side The gas supply member 12 and the actuator 14 are installed in a screw-mounted manner, and the actuator 14 is movable in the front of the shaft 16 while being supported by the spring 15 at the front. It is installed on the sheet 17 fixed to the inside of 4) and the operating link 8 and the operator 14 are unlocked from each other in a locked state. State consists installed able to be switched.

At this time, the fixing frame (4c) at both ends of the outer frame (4) can be screwed to the upper ceiling of the vehicle, the through hole (5a) on one side of the cover (5) is made by forming a cylindrical (4b) on the outside At the same time, the cover 5 is capable of assembling all relevant internal members and then covering and sealing it on the outer frame 4.

In addition, the weight 6 is installed in the space on one side around the partition 4a so that the retraction is no longer retracted and is possible to move forward by the horizontal movement. (6a) is formed so that the frictional force during operation is low.

The actuating link 8 is formed with an elongated lock groove 8b having an arcuate surface 3a formed at one end thereof, and one side connected thereto having an acute cross-sectional shape, and having an acute angle of the operator 14 to be described later in operation. A curved groove 8c is formed to exclude interference with the end portion 14b and is installed between the inner surface of the outer frame 4 and in a state supported by the curved tapered surface 6a of the weight 6. To be maintained.

In addition, the gas supply fixing member 12 is fixed to the seating groove 17a of the seat 17 fixed to the outer frame 4 with the protrusion part 12a fitted therein, but on one side of the inner flow passage 12b. The container 13 is coupled and the other end of the elbow 18 is fastened and fastened and the other end of the punch pin 19 is fitted reciprocally, the punch pin 19 is the one end of the bent end (19a) and the other side punch ( 19b) the intermediate flange portion 19c is integrally formed, and the coupling member 21 is coupled by wrapping the punch pin 19 from the outside by the coupling member 21 in a state in which the inner spring 20 is fitted. ) Is screwed to the protrusion 12 of the gas supply fixing member 12.

In addition, the operator 14 forms a spring coupling groove 14a at one side, and forms an acute end 14b and a curved end 14c in succession at one end, and forms a curved end 14d at the other end to form a spring ( The acute end portion 14b is engaged by one side of the lock groove 8b of the actuating link 8 so as to be locked in a locked state by 15), but once the lock state is released, the shaft 16 is momentarily removed. It is made rotatable by the elastic force of the spring 15 to the center.

At this time, it is preferable that the sheets 11 and 17 fixed to the inside of the frame 4 are made of a rigid body as one body, and the actuator 14 is normally maintained to be held by the strong elastic force of the spring 15. Therefore, when a long time passes in the non-operating state of the compressed gas operating mechanism 1, local deformation of the frame 4 may occur due to the strong elastic force of the spring 15, which may cause malfunction.

In this case, in particular, the elastic force of the spring 15 is exerted on the actuator 14 and the actuating link 8 due to its mechanical properties, and these influences are intensively applied to the hinge portion 10 and the shaft 16. 10 and the shaft 16 are preferably provided on the rigid sheets 11 and 17 so that displacement does not occur.

As shown in FIGS. 1 and 5, the airbag receiving device 2 is coupled to the outer case 30 and the cover 31, and forms a coupling hole 32 at one side of the outer case 30. The inlet 34 of the airbag 33 is exposed to the outside through the coupling hole 32 to be fixed by the lock nut 35, and the airbag 33 is a parachute folding method. It is made by combining the cover body 31 in a folded state, and the bracket 30 is installed at the rear portion so that the case 30 can be installed in the vehicle, and the cover body 31 protrudes from the front. But the outer periphery is made by forming a weak part (37).

At this time, the outer shape of the airbag 33 is formed in the form of a double-ply to conform to the shape of the upper body of the human body, but inside the upper junction 38, both sides of the intermediate junction (39, 40) are formed, respectively, both sides of the intermediate junction (3) , 9, 40 is formed between the U-shaped junction portion 41 and when the compressed air flows through the injection hole 34 instantaneously inflated to the outside around the upper junction 38 is the head of the human body is located in the middle The portion bulged outwardly about the junction 39, 40 and the U-shaped junction 41 is made so that the upper torso part of the human body is located to fit the human body shape.

In addition, Figure 8 shows a configuration suitable for installing the compressed gas operating mechanism (1) on the other side opposite to the above-described embodiment, the configuration is different from each other is formed only symmetrically and the other technical configuration is also shown that the detailed description It will be omitted.

Reference numeral 42 denotes a vehicle body, and 43 denotes a ceiling of the vehicle.

Next will be described with respect to the operation and effects of the present invention made as described above.

Referring to FIGS. 3 and 4, 7 and 8, the safety device of the present invention can be installed in the driver's seat or the passenger seat around the ceiling 43 of the vehicle body 42, but is not illustrated. The compressed gas actuator 1 is installed at the proper position on the upper part of the seat on which the occupant is seated so that the weight 6 is moved forward and the longitudinal direction of the weight 6 is equal to the length of the vehicle. (2) may be provided so as to be located directly above the front end of the seat portion where the passenger sits.

When an accident occurs while driving the vehicle in the same installation state, the vehicle is decelerated rapidly, and thus the weight 6 of the compressed gas operating mechanism 1 is In the state where the curved tapered surface 6a and the arched surface 8a of the operation link 8 are pressed against each other by the momentary expansion of the tangent spring 7 which is advanced by the law of inertia and compressed behind it, the tangent spring ( Since the 7) expands and pushes the weight 6 as it is, the curved tapered surface 6a and the arched surface 8a move forward with the weight 6 in a state where the friction force is further reduced, and the operation link 8 Is raised about the hinge portion 10 and the acute end portion 14b of the operator 14, which is locked in the lock groove 8b, is unlocked while being centered on the shaft 16 by the elastic force of the spring 15. Rotates momentarily through the curved groove 8c counterclockwise The curved end portion 14d of 14 causes the slide end portion 19a of the punched pin 19 to be slide-pressed, and the punched pin 19 is pressurized to advance the bored needle 19b of the pressure gas container 13. After punching the tip sealing part instantaneously, the drilling pin 19 is returned to its original position by the spring 20.

The pressure gas discharged from the pressure gas container 13 by the drilling pin 19 boring the tip sealing portion of the pressure gas container 13 includes the internal flow path 12b, the elbow 18, and the power hose 3. And the inlet 34 of the airbag 33 flows into the airbag 33, and the airbag 33 expands while the outer case 30 of the airbag storage mechanism 2 protrudes by the weak portion 37. The part is separated and the air bag 33 is inflated and descends momentarily downward, but between the passenger and the passenger in front of the passenger in front of the vehicle (for example, the driver and the driver in front of the passenger) before the passenger's upper body moves forward by inertia. Between the handles) and the inflated airbag 33 allows the passenger's head or upper body to be protected from a collision shock of the vehicle.

As a result of the applicant's experiment, when the impact shock is applied to the vehicle at a speed of 40 km / h, in the case of the safety device of the present invention, the weight (6) is moved so that the operation link (8), the operator (14) and the drilling pin ( From the operation of 19), it was found that the pressure gas inside the pressure gas container 13 flows into the airbag 33, inflates and descends, and it takes 0.05 seconds to 0.1 seconds to complete the operation.

Meanwhile, as shown in FIGS. 9 to 11, the inlet 34 of the air bag 33 is formed in the front to shorten the length of the power hose 3 which passes through the gas discharge from the pressure gas container 13. This may shorten the time for the airbag 33 to inflate.

As described above, the safety device for occupant protection by the airbag according to the present invention enables the operation of the weight 6 accurately by the expansion force generated by the external impact in the compressed state of the tanger spring 7 and At the same time, accurate and safe operation can be achieved quickly by the mechanical construction by the actuating link 8, the operator 14 and the drilling pin 19, in particular the upper and intermediate joints 38 in the construction of the airbag 33. , 39, 40 and the U-shaped junction 41 has an excellent effect to more securely protect the occupant in the event of a crash of the vehicle by forming a human body shape.

Claims (4)

Separately formed by the compressed gas operating mechanism (1) and the air bag receiving mechanism (2) and installed by interconnection by the power hose (3), the compressed gas operating mechanism (1) is a central partition wall (inside the outer frame 4) ( The weight 6 is installed at one side around the center of the assembly 4a, and the actuating link 8 is installed at the front of the weight 6 so as to be able to move around the hinge 10 at one side, and the gas supply at the other side. The pressure gas container 13 is installed at the rear part around the fixing member 12 and the actuator 14 is installed at the front to move about the shaft 16 while being supported by the spring 15. (8) and the operator (14) is installed to be switched from the locked state to the unlocked state with each other, the airbag receiving mechanism (2) is coupled to the outer case 30 and the cover body 31 and the inside Passenger by airbag built by combining airbag 33, inlet 34 of airbag 33 and power hose 3 In the safety device for a safety device, the compressed gas actuator (1) is provided with a circular packing (9) in the rear part around the weight (6), together with the tangy spring (7), and the operation link (8) and the operator (14). ) Is provided on the sheets 11 and 17 fixed to the inside of the frame 4, respectively, and is vulnerable to the outer periphery of the cover body 31 of the airbag storage mechanism 2 in which the airbag 33 is incorporated. Safety device for occupant protection by the airbag, characterized in that formed by). 2. The safety device for occupant protection according to claim 1, characterized in that a curved curved tapered surface (6a) is formed in front of the weight (6). 2. The safety device for occupant protection according to claim 1, characterized in that the inlet (34) of the airbag (33) is installed at the front. The airbag 33 according to claim 1, wherein the airbag 33 forms a double-ply bag and forms the upper junction portion 38 and the intermediate junction portions 39 and 40 on both sides, and the U-shaped junction portion 41 between the two intermediate junction portions 39 and 40. Safety device for occupant protection by the airbag, characterized in that formed to meet the shape of the upper torso of the human body.