KR100510362B1 - Apparatus for restraint a side movement of passenger in a vehicle - Google Patents

Abstract

Disclosed is a lateral movement restraint device for an automobile rider capable of preventing secondary injuries due to collision between passengers by restraining and buffering lateral movement of a passenger during side collision of the vehicle. The present invention provides a side restraining member installed in a side portion of the seat, a rotating shaft having one end coupled to the side restraining member and rotatably installed in the seat, a driving portion engaged with the other end of the rotating shaft and rotating the rotating shaft, and a control unit and a control unit for controlling the driving unit. Forming an electrical connection with the side collision detection sensor for detecting a side collision of the vehicle.

Description

Apparatus for restraint a side movement of passenger in a vehicle}

The present invention relates to a lateral movement restraint device for a vehicle occupant that can prevent secondary injuries of the rider by restraining and cushioning the lateral movement of the rider in response to the expansion reaction of the side airbag during the side collision of the vehicle.

Recently, as interest in safety of passengers along with functionality and convenience of automobiles is increasing, the importance of safety-related devices that can safely protect passengers in the event of an accident of automobiles is increasing.

Among these safety devices, airbag systems, in particular, are used in conjunction with seat belts to cushion passengers during frontal or side impacts or overturning of vehicles to prevent injury.

Among these airbag systems, Side Air-Bag is designed to cushion and protect the passenger's head and chest in the event of a side collision.

Figure 1 shows an example of a conventional general side airbag, as shown, the side airbag is composed of an air cushion 6, an inflator 7 and an inflator housing 8 and an airbag module assembly 9 It contains (10).

The airbag module assembly 9 is inserted into the airbag housing 10 and mounted to the seat frame 11 of the seat back 5 by fasteners such as bolts.

According to this configuration, when the operation signal is applied to the inflator 7 through the control unit (not shown) during the side collision of the vehicle, the inflator 7 generates a predetermined compressed gas to supply the inside of the air cushion 6 And, the air cushion 6 is inflated in a certain shape in an instant, to cover and protect the head and side of the occupant at the same time.

However, such a conventional side airbag is effective in cushioning the passenger impact on the door-side structure in the event of a side collision of the vehicle, but the driver's seat or passenger seat occupants the passenger's seat or the passenger seat due to the cushion recoil caused by the sudden expansion of the air cushion 6. There was a problem that the second side injury caused by injury to the neck and back, or hit each other to the side.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention by restraining and cushioning the lateral movement of the passengers according to the expansion reaction of the side air bag during side impact of the vehicle due to collision between the seat occupants An aspect of the present invention is to provide a lateral movement restraint device for vehicle occupants to prevent injuries.

Passenger side movement restraint device of the present invention for achieving the above object is a side restraining member installed in the side portion of the seat; A rotating shaft having one end coupled to the side restraining member and rotatably installed in the seat; A driving unit engaged with the other end of the rotating shaft to rotate the rotating shaft; A control unit controlling the driving unit; And a side collision detection sensor that makes an electrical connection with the controller and detects a side collision of the vehicle.

The drive unit includes a rack engaged with the other end of the rotation shaft and an inflator controlled by the control unit and linearly driving the rack upward.

The rotating shaft has a tapered shape in which the diameter gradually decreases from the end where the drive unit is located to the end where the side restraint member is located.

The sheet is provided with a rotating shaft support plate for supporting the rotating shaft.

In the seat located between the side restraint member and the seat occupant, a first side airbag whose operation is controlled through the control unit is installed.

A second side airbag controlled by the control unit is installed in the door side direction side portion of the seat.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a view schematically showing a passenger side movement restraint device of a vehicle according to an embodiment of the present invention, showing a state of normal state before operation.

As shown, the passenger side movement restraint apparatus according to the present invention is installed inside the seatback 110 of the seat 100, and the side restraining member 210a restrains the side flow of the seat 100 passengers. (210b), the rotating shafts 220a and 220b connected to the side restraining members 210a and 210b, the driving unit 230 for rotating the rotating shafts 220a and 220b, and the driving unit 230. A control unit ECU (not shown) for controlling the operation and a side collision detection sensor (not shown) for transmitting a collision signal to the control unit.

Here, the seat 100 may be a driver's seat or a passenger seat, but in this embodiment, the driver's seat will be described as an example.

On the other hand, the direction (A) shown on the drawing represents the console box side direction of the vehicle interior with respect to the driver's seat 100, and the (B) direction represents the side door side direction. .

The side restraining members 210a and 210b are formed in a plate shape, and are installed to be arranged on the same vertical line in the side part of the seatback 110 in the direction (A).

At this time, the side restraint member 210a located at the upper side plays a role of restraining the head of the passenger, and the side restraint member 210b located at the lower side can restrain the side flank of the passenger.

In addition, the side restraining members 210a and 210b support the first side airbag 300 to be described later to be prevented from flowing in the direction (A).

The rotary shafts 220a and 220b are disposed in the transverse direction in the seatback 110 and are rotatably installed on the inner structure of the seatback 110.

Each end of the rotating shafts 220a and 220b is coupled to form a vertical portion with the upper ends of the side restraining members 210a and 210b, and rotates by a predetermined angle in conjunction with the rotation of the rotating shafts 220a and 220b. I can do it.

In this case, a predetermined space portion is provided in the seatback 110 to enable rotation of the side restraining members 210a and 210b, and a tear line (not shown) is formed in the seatback 110 to By rotating the side restraining members 210a and 210b, the tearing lines are torn and come out of the seatback 110.

Preferably, the rotating shafts 220a and 220b form a taper shape in which the diameter gradually decreases from the end portion in the direction (B) to the end portion in the direction (A).

In this case, in the rotary shafts 220a and 220b, the area engaged with the driving unit 230 side, which will be described later, can maintain a considerable mechanical rigidity, and the area close to the side restraining members 210a and 210b has a diameter. Since it is small, it is possible to absorb the impact energy while bending a small amount during the impact of the passengers can perform the elastic buffer action.

On the other hand, the seat back 110 is provided with the rotary shaft support plates 240a and 240b for supporting the rotary shafts 220a and 220b.

Although not shown in the drawing, a hole (Hole) for insertion of the rotation shafts 220a and 220b is formed in the rotation shaft support plates 240a and 240b, between the hole and the rotation shafts 220a and 220b. The bearing is mounted to allow the rotation of the rotating shafts 220a and 220b to be performed smoothly.

The rotary shaft support plates 240a and 240b may be elastically buffered while being slightly bent to the left and right during the impact of the passenger along with the rotary shafts 220a and 220b.

On the other hand, at the end of the rotation shaft (220a) (220b) located in the (B) direction is provided with a drive unit 230 for vertically engaging the rotation shaft (220a, 220b) to provide a rotational force.

The driver 230 includes a rack 232 and an inflator 234 connected to a lower end of the rack 232.

The rack 232 is engaged with the ends of the rotating shafts 220a and 220b, and is connected to the inflator 234 via the connecting shaft 233 to enable linear movement in the vertical direction.

The inflator 234 is connected to the control unit, and raises the rack 232 upward by a predetermined distance by the internal gas explosion pressure under the control of the control unit.

3 is a view illustrating a rotation process of the rotation shafts 220a and 220b according to the internal structure of the inflator 234 and the upward movement of the rack 232.

As shown, the inflator 234 includes a chamber 235 fixed in the seatback 110, a cylinder 236 coupled to the connecting shaft 233 so as to be movable in the chamber 235, and a cylinder. It is configured to include a ignition device 238 connected to the piston 237 and the control unit installed in the movable motion 236 in the chamber 235.

Therefore, when the gas generating agent (not shown) is ignited and exploded by the ignition of the ignition device 238, the piston 237 is moved upward by the pressure, and the cylinder 236 is connected by the impact of the piston 237. As the shaft 233 moves up in the chamber 235 and lifts the rack 232, the rotation of the rotating shafts 220a and 220b can be performed.

On the other hand, as shown in Figure 2, in the (A) side surface portion of the seat back 110, the region is located between the side restraining members (210a) (210b) and the passengers (not shown) operation through the control unit The controlled first side airbag 300 is installed.

In addition, a second side airbag 400, in which operation is controlled through an excitation control unit, is installed at the side surface portion (B) of the seatback 110 facing the first side airbag 300.

Here, the second side airbag 400 is a general side airbag that is capable of protecting the head and side of the passenger at the same time when the vehicle side collision is employed, the first side airbag 300 is the second side of the airbag 400 During expansion, the recoil is cushioned to prevent the passengers from moving sideways in the direction of (A).

Since the first and second side airbags 300 and 400 employ a conventional general side airbag structure, reference will be made to the structure and configuration described in the prior art, and detailed description thereof will be omitted below.

Hereinafter, the operation of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is an operating state diagram showing an example of the operation of the passenger side movement restraint device according to the present invention, Figure 5 is a block diagram showing the overall operation of the present invention.

4 and 5, first, the side collision detection sensor (not shown) during the side collision of the vehicle detects the collision and transmits it to the control unit, the control unit transmits the operation signal corresponding to the collision signal first and first Output to the two side airbags (300, 400) and at the same time to operate the passenger side movement restraint.

In this case, in the passenger side movement restraint device, an operation signal transmitted from the control unit is applied to the ignition device 238 of FIG. 3 to burn and explode the gas generating agent (not shown) inside, and thus, generate a piston through the generated gas pressure. By raising the 237 to raise the cylinder 236 and the connecting shaft 233 connected thereto in the chamber 235, the rack 232 is lifted upward by a predetermined distance to rotate the rotary shafts 220a and 220b. Let's go.

As such, when the rotation shafts 220a and 220b are rotated, the side restraining members 210a and 210b are rotated by a predetermined angle in conjunction with the rotation shafts 220a and 220b to tear the rupture line (not shown) of the seatback 110. It is drawn out to restrain the side flow of the passenger in the (A) side direction and prevent the flow in the (A) side of the first side airbag 300 is deployed.

Therefore, even if the passengers of the seat 100 are bounced by the expansion reaction of the second side airbag 400 and moved in the (A) side, the passengers are seated and restrained through the first side airbag 300, Secondary injury from collision can be prevented.

According to the present invention described above it can be expected the following effects.

First, since the side restraint member supports the first side airbag in the deployed state during the side collision of the vehicle, the side flow of the passenger due to the expansion reaction of the second side airbag is properly restrained and cushioned at the same time through the first side airbag. As a result, secondary injuries caused by collisions with passengers in the side seats can be prevented.

Second, by constructing the drive unit in the passenger side movement restraint with the rack to be engaged with the pinion-shaped rotation shaft, it is structurally robust and simple to rotate the rotation shaft, and also inflator using the gas explosion pressure as the drive means of the rack By employing the can be induced smooth operation of the occupant side movement restraint device in a fast motion corresponding to the deployment time of the first and second side airbag.

Third, by forming the rotating shaft in a tapered shape that decreases in diameter toward the side restraint member, a certain amount of bending can be made at a portion having the small diameter, thereby enabling elastic cushioning according to the collision of the passengers.

Fourth, by installing a rotary shaft support plate supporting the rotary shaft in the seat back can structurally compensate for the rigidity of the rotary shaft, and because it is a small amount banded together with the rotary shaft in the event of a collision of passengers to absorb the impact energy partly to absorb the cushioning effect of the passengers You can increase it.

Fifth, by installing the first side airbag between the side restraint member and the seat occupant, it is possible to prevent the occupant from directly impacting the side restraint member, and to properly cushion the occupant to prevent injury.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below And can be changed.

1 is an exploded perspective view showing a mounting structure of a conventional general side airbag.

2 is a view showing a side movement restraining device according to an embodiment of the present invention.

Figure 3 is a cross-sectional view showing the internal structure of the inflator.

4 is a view showing a state of use of the present invention.

5 is a block diagram showing the overall operation of the present invention.

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

100: sheet 110: seatback

210a, 210b: side restraining member 220a, 220b: rotating shaft

230: drive unit 232: rack

233: connecting shaft 235: chamber

236 cylinder 237 piston

238: ignition device 240a, 240b: rotary shaft support plate

300: first side airbag 400: second side airbag

Claims (6)

A side restraining member installed in the side portion of the seat; A rotating shaft having one end coupled to the side restraining member and rotatably installed in the seat; A driving unit engaged with the other end of the rotating shaft to rotate the rotating shaft; A control unit controlling the driving unit; A side collision detection sensor that makes an electrical connection with the controller and detects a side collision of the vehicle; And The first side airbag is installed in the seat located between the side restraint member and the seat occupant and controlled by the control unit. The side movement restraint device for a vehicle occupant of claim 1, wherein the rotational shaft is rotated through the driving unit to fix the deployment position of the first side airbag through the side restraint member. The method of claim 1, wherein the driving unit, A rack forming engagement with the other end of the rotation shaft; And Controlled by the control unit, and the side movement restraint device for a vehicle occupant comprising an inflator for linearly driving the rack upwards. According to claim 1 or claim 2, The rotating shaft is a side movement restraint device of the vehicle passenger characterized in that the tapered shape is gradually reduced in diameter as it proceeds from the end in which the drive unit is located to the end in which the side restraining member is located. 4. The lateral movement restraint device for an automobile occupant of claim 3, wherein a rotation shaft support plate for supporting the rotation shaft is further installed in the seat. delete 2. The side movement restraint device for an automobile occupant according to claim 1, wherein a second side air bag controlled by the control unit is installed in the door side side portion of the seat.