Novel seat cushion safety air bag and seat comprising air bag

Abstract

The utility model discloses a novel safety air bag for a seat cushion, which comprises an air bag which is flatly paved in the front half part of the seat cushion and is positioned between a seat cushion framework and a seat cushion foaming layer; the gas generator is arranged in the seat cushion and is used for inflating gas into the gas bag when collision occurs, so that the gas bag is quickly expanded and unfolded to lift the thighs of the passenger, and the passenger is prevented from moving forwards under the condition that the passenger lies down. The utility model further discloses a seat comprising the novel seat cushion safety air bag. According to the automobile seat cushion, the comfort of passengers is not affected, additional harm to the passengers is avoided, the restraint effect on the passengers can be achieved during front collision, and the safety of the passengers is protected.

Description

Technical Field

[0001] This utility model relates to the field of automotive airbag technology, and in particular to a novel seat cushion airbag and a seat including the airbag. Background Technology

[0002] As the penetration rate of passenger vehicles increases, people's awareness of car safety is also gradually improving. Currently, most vehicles are equipped with airbags to enhance their safety restraint and protection capabilities. While the pursuit of comfort has led to vehicles featuring seats that recline at a large angle, in a frontal collision while in this position, occupants may slide forward, causing injury.

[0003] Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below is the result of this research. Utility Model Content

[0004] One of the technical problems to be solved by this utility model is to provide a new type of seat cushion airbag that can restrain the occupant in the event of a collision without causing additional injury to the occupant.

[0005] The second technical problem to be solved by this utility model is to provide a seat including the above-mentioned novel seat cushion airbag.

[0006] As a novel seat cushion airbag in the first aspect of this utility model, it includes:

[0007] Airbags, which are laid flat within the front half of the seat cushion and located between the cushion frame and the cushion foam layer; and

[0008] A gas generator, disposed within the seat cushion, is used to inflate the airbag with gas in the event of a collision, causing the airbag to rapidly expand and deploy, thereby elevating the occupant's thighs and preventing the occupant from moving forward while in a reclining position.

[0009] In a preferred embodiment of this utility model, the gas generator is located inside the left or right side of the seat cushion and is connected to the seat cushion frame via a fixed bracket.

[0010] In a preferred embodiment of this utility model, the side of the air bag closest to the gas generator is fixed to the gas generator by an air bag bracket, and the side furthest from the gas generator is fixed to the seat cushion frame by a first hook strap. The rear edge of the air bag is fixed to the seat cushion frame by a second hook strap.

[0011] In a preferred embodiment of the present invention, the air bag includes an upper piece, a lower piece, and a middle pull strap. The upper piece and the lower piece are sewn together along their periphery to form a three-dimensional bag. The middle pull strap is sewn between the upper piece and the lower piece to limit the thickness of the cavity inside the air bag.

[0012] In a preferred embodiment of this utility model, the middle pull strap is trapezoidal in shape, wider at the front and narrower at the rear. The middle pull strap is arranged at the middle position between the upper and lower cut pieces along the direction of passenger movement. Its upper edge is sewn onto the inner side of the upper cut piece, and its lower edge is sewn onto the inner side of the lower cut piece. A gap is reserved between its front and rear edges and the inner side of the air bag for gas to pass through.

[0013] In a preferred embodiment of the present invention, the air bag further includes an inner air-guiding panel, which is folded in half and sewn along the edge to form an inner air-guiding bag. The inner air-guiding bag is arranged inside the air bag and close to the gas generator. A curved guide channel is formed inside the inner air-guiding bag. One end of the curved guide channel is connected to the gas outlet of the gas generator, and the other end guides the gas introduced by the gas generator into the cavity of the air bag.

[0014] As a second aspect of this utility model, a seat includes a seat cushion, and the seat cushion is provided with the aforementioned novel seat cushion airbag.

[0015] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This utility model adds a seat cushion airbag to the existing car seat, which does not affect the comfort of the occupants, nor does it cause additional injury to the occupants. It can also restrain the occupants in the event of a frontal collision and protect their safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the seat of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the seat of this utility model (the seat cushion foam layer and seat cushion cover are omitted).

[0019] Figure 3This is a schematic diagram of the air bag cut piece of this utility model. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0021] See Figure 1 and Figure 2 The image shows a type of seat, including a seat cushion 100, which contains a new type of seat cushion airbag 200.

[0022] The seat cushion 100 includes a seat cushion frame 110, a seat cushion foam layer 120, and a seat cushion cover 130. The seat cushion foam layer 120 is disposed on the seat cushion frame 110, and the seat cushion cover 130 covers the outer peripheral surfaces of the seat cushion frame 110 and the seat cushion foam layer 120.

[0023] The novel seat cushion airbag 200 includes an air bag 210 and a gas generator 220. The air bag 210 is laid flat within the front half of the seat cushion 100 and located between the seat cushion frame 110 and the seat cushion foam layer 120. The gas generator 220 is arranged within the seat cushion 100.

[0024] Specifically, the gas generator 220 is located inside the left or right side of the seat cushion 100 and is connected to the seat cushion frame 110 via a fixing bracket (not shown in the figure), thereby preventing the gas generator 220 from affecting the passenger's riding comfort under the seat cushion 100. The side of the air bag 210 closest to the gas generator 220 is fixed to the gas generator 220 via an air bag bracket (not shown in the figure), and the side furthest from the gas generator 220 is fixed to the seat cushion frame 110 via a hook strap 230. The rear edge of the air bag 210 is fixed to the seat cushion frame 110 via a hook strap 240, thereby ensuring the stability of the air bag 210 when deployed.

[0025] The deployment process of the new seat cushion airbag 200 is as follows: When a collision occurs, the gas generator 220 detonates and inflates the airbag 210 with gas, causing the airbag 210 to expand rapidly. The ear loops 230 and 240 on the airbag 210 fix the airbag to prevent it from moving. The airbag 210 lifts the front half of the seat cushion foam layer and seat cushion cover of the seat cushion 100. The airbag 210 has no vent, thereby raising the occupant's thighs and preventing the occupant from moving forward while in a reclining position.

[0026] See Figure 3The air bag 210 includes an upper piece 211, a lower piece 212, and a central drawstring 213. The upper piece 211 and the lower piece 212 are sewn together along their periphery to form a three-dimensional bag shape. The central drawstring 213 is sewn between the upper piece 211 and the lower piece 212 to limit the thickness of the cavity inside the air bag 210. Specifically, the upper left and upper right corners of the upper piece 211 are cut and sewn together, that is, the upper left corner edges 2111 and 2112 are sewn together, and the upper right corner edges 2113 and 2114 are sewn together, forming a three-dimensional shape, which can further increase the front thickness of the air bag 210. The middle pull strap 213 is trapezoidal in shape, wider at the front and narrower at the back. It is positioned between the upper piece 211 and the lower piece 212 along the direction of passenger movement. Its upper edge 2131 is sewn to the inner side 2115 of the upper piece 211, and its lower edge 2132 is sewn to the inner side 2121 of the lower piece 212. Gaps for gas passage are provided between its front edge 2133 and rear edge 2134 and the inner side of the air bag 210. During sewing, the wider front edge 2133 of the middle pull strap 213 is closer to the front end 2116 of the upper piece 211 and the front end 2122 of the lower piece 212, while the narrower rear edge 2134 is closer to the rear end 2117 of the upper piece 211 and the rear end 2123 of the lower piece 212. The upper piece 211 and the lower piece 212 are sewn together along the outer periphery to form an integral air cavity. The air cavity is thicker at the front and thinner at the back, which can make the lifting effect more obvious.

[0027] The air bag 210 also includes an inner air-guiding panel 214. The inner air-guiding panel 214 is folded in half and then sewn along its edges. Specifically, the inner air-guiding panel 214 is folded along its center line 2141, and then the sides 2142 and 2143 are sewn together, as well as the sides 2144 and 2145, forming an inner air-guiding bag. This inner air-guiding bag is positioned inside the air bag 210 and close to the gas generator 220. A curved guide channel is formed within this inner air-guiding bag. One end 2146 of this curved guide channel is connected to the outlet end of the gas generator 220, and the other end guides the gas introduced by the gas generator 220 into the cavity of the air bag 210. The function of the inner air-guiding bag is to stabilize the gas flow direction, preventing instability during deployment.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A novel seat cushion airbag, characterized in that, include: An air bag, which is laid flat in the front half of the seat cushion and located between the seat cushion frame and the seat cushion foam layer; as well as A gas generator, disposed within the seat cushion, is used to inflate the airbag with gas in the event of a collision, causing the airbag to rapidly expand and deploy, thereby elevating the occupant's thighs and preventing the occupant from moving forward while in a reclining position.

2. The novel seat cushion airbag as described in claim 1, characterized in that, The gas generator is located inside the left or right side of the seat cushion and is connected to the seat cushion frame via a fixed bracket.

3. The novel seat cushion airbag as described in claim 2, characterized in that, The side of the air bag closest to the gas generator is fixed to the gas generator by an air bag bracket, and the side away from the gas generator is fixed to the seat cushion frame by a first hook strap. The rear edge of the air bag is fixed to the seat cushion frame by a second hook strap.

4. The novel seat cushion airbag as described in any one of claims 1 to 3, characterized in that, The air bag includes an upper piece, a lower piece, and a middle pull strap. The upper and lower pieces are sewn together along their periphery to form a three-dimensional bag. The middle pull strap is sewn between the upper and lower pieces to limit the thickness of the cavity inside the air bag.

5. The novel seat cushion airbag as described in claim 4, characterized in that, The middle pull strap is trapezoidal in shape, wider at the front and narrower at the back. It is positioned in the middle between the upper and lower cut pieces along the direction of passenger movement. Its upper edge is sewn onto the inner side of the upper cut piece, and its lower edge is sewn onto the inner side of the lower cut piece. A gap is reserved between its front and rear edges and the inner side of the air bag for gas to pass through.

6. The novel seat cushion airbag as described in claim 4, characterized in that, The air bag also includes an inner air-guiding panel, which is folded in half and sewn along the edge to form an inner air-guiding bag. The inner air-guiding bag is arranged inside the air bag and close to the gas generator. A curved guide channel is formed inside the inner air-guiding bag. One end of the curved guide channel is connected to the gas outlet of the gas generator, and the other end guides the gas introduced by the gas generator into the cavity of the air bag.

7. A seat, comprising a seat cushion, characterized in that, The seat cushion is provided with a novel seat cushion airbag as described in any one of claims 1 to 6.

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