Far-end air bag and automobile seat

Abstract

The embodiment of the utility model provides a far-end air bag and an automobile seat, and relates to the field of automobile safety. The far-end air bag comprises a main chamber and a first auxiliary chamber, the main chamber comprises a first cavity and a second cavity, the first cavity is communicated with the upper end of the second cavity, the first auxiliary chamber is communicated with the position where the first cavity is communicated with the second cavity, the first cavity is used for containing the head of a passenger in the expansion pop-up state, and the second cavity is used for containing the head of the passenger in the expansion pop-up state. The second cavity is used for extending in the leg direction of a passenger in the expansion pop-up state, and the first auxiliary cavity is used for extending towards the head and the chest of the passenger in the expansion pop-up state. In the working state, when lateral collision occurs, the first cavity can receive the head of a passenger, the second cavity can receive the legs of the passenger, and the first auxiliary cavity can receive the head and the chest of the passenger, so that the supporting force to the body of the passenger is improved, lateral displacement of the passenger during lateral collision is reduced, and the passenger can be prevented from being damaged. And the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle safety, and more particularly, to a distal airbag and a vehicle seat. Background Art

[0002] When a vehicle undergoes a side collision, collisions are likely to occur between the occupants on the same side, causing injuries. Therefore, it is necessary to install an airbag in the central position of the vehicle to reduce the injuries caused by collisions between the occupants.

[0003] Although existing distal airbags can support and protect the occupants, due to insufficient support force, the lateral movement of the occupants is too large, resulting in limited protection effect. Summary of the Utility Model

[0004] The utility model provides a distal airbag and a vehicle seat, which can stably support the occupants, reduce the lateral movement of the occupants during a side collision of the vehicle, and thus improve the protection effect.

[0005] Embodiments of the utility model can be implemented as follows:

[0006] Embodiments of the utility model provide a distal airbag and a vehicle seat, which include:

[0007] A main chamber and a first auxiliary chamber;

[0008] Wherein, the main chamber includes a first cavity and a second cavity. The first cavity communicates with the upper end of the second cavity. The first auxiliary chamber communicates with the position where the first cavity and the second cavity are connected. The first cavity is used to receive the head of the occupant in the inflated and ejected state. The second cavity is used to extend towards the legs of the occupant in the inflated and ejected state. The first auxiliary chamber is used to extend towards the head and chest of the occupant in the inflated and ejected state.

[0009] Optionally, a recessed portion is formed on the outside of the positions where the first cavity, the second cavity, and the first auxiliary chamber communicate with each other.

[0010] Optionally, the recessed portion includes a first recessed area, which is formed on the outside of the position where the first cavity and the first auxiliary chamber communicate with each other;

[0011] And / or, the recessed portion includes a second recessed area, which is formed on the outside of the position where the second cavity and the first auxiliary chamber communicate with each other;

[0012] And / or, the recessed portion includes a third recessed area, which is formed on the outside of the position where the first cavity and the second cavity communicate with each other.

[0013] Optionally, the first cavity has a first cross-section S, the second cavity has a second cross-section V, the first auxiliary chamber has a third cross-section K, an angle e is formed between the first cross-section S and the second cross-section V, and an angle f is formed between the second cross-section V and the third cross-section K;

[0014] Wherein, 0° ≤ e ≤ 80°, 10° ≤ f ≤ 100°.

[0015] Optionally, the distal airbag further includes a second auxiliary chamber, which is communicated with the second cavity and is used to be arranged below the first auxiliary chamber in the inflated and ejected state.

[0016] Optionally, the second auxiliary chamber further includes a third cavity, which is communicated with the side of the second cavity far from the first auxiliary chamber, and the third cavity is used to abut against the central armrest;

[0017] And / or, the second auxiliary chamber includes a fourth cavity, which is communicated with the side of the second cavity close to the first auxiliary chamber, and the fourth cavity is used to extend towards the legs of the occupant.

[0018] Optionally, a fourth recessed area and a fifth recessed area are formed on the outer side of the connection position between the third cavity and the second cavity, and the fourth recessed area and the fifth recessed area are respectively located on the upper side and the lower side of the third cavity.

[0019] Optionally, a sixth recessed area and a seventh recessed area are formed on the outer side of the connection position between the fourth cavity and the second cavity, and the sixth recessed area and the seventh recessed area are respectively located on the upper side and the lower side of the fourth cavity.

[0020] Optionally, the distal airbag includes a first cut piece and a second cut piece, and the first cut piece and the second cut piece are used to form the first cavity, the second cavity and the first auxiliary chamber through folding and sewing.

[0021] Optionally, the first cut piece includes a first sub-piece and a second sub-piece which are connected to each other, a first folding line is formed between the first sub-piece and the second sub-piece, the first sub-piece is used to be folded along the first folding line to be close to the second sub-piece, and the two sides of the first sub-piece and the second sub-piece are sewn and connected to form the first cavity.

[0022] Optionally, the first cut piece further includes a first extension piece and a second extension piece, the first extension piece and the second extension piece are respectively located at the mutually remote ends of the first sub-piece and the second sub-piece, the first extension piece is sewn and connected to the second cut piece to form the first auxiliary chamber, and the second extension piece is sewn and connected to the second cut piece to form the second cavity.

[0023] Optionally, the first cut piece further includes a third extension piece and a fourth extension piece, the third extension piece and the fourth extension piece are sequentially connected between the second sub-piece and the second extension piece, and the third extension piece and the fourth extension piece are used to form a third cavity through folding and sewing, and the third cavity communicates with the second cavity.

[0024] Optionally, the second cut piece includes a third sub-piece and a fourth sub-piece connected to each other, a second folding line is formed between the third sub-piece and the fourth sub-piece, the third sub-piece is sewn and connected to the first cut piece to form the first auxiliary chamber, and the fourth sub-piece is sewn and connected to the first cut piece to form the second cavity.

[0025] Optionally, a communication hole is provided at the connection between the third sub-piece and the fourth sub-piece, the second folding line passes through the communication hole, and the communication hole has a first sewing section and a second sewing section symmetrically arranged with respect to the second folding line, and the first sewing section and the second sewing section are used for sewing and connecting in the case where the third sub-piece and the fourth sub-piece are folded.

[0026] Optionally, the second cut piece further includes a fifth extension piece and a sixth extension piece, the fifth extension piece and the sixth extension piece are connected to the fourth sub-piece, and the fifth extension piece and the sixth extension piece are used to form a fourth cavity through folding and sewing.

[0027] Optionally, the distal airbag further includes a first tether, one end of the first tether is connected to the first cavity, and the other end of the first tether is used for connecting to the seat body;

[0028] And / or, the distal airbag further includes a second tether, one end of the second tether is connected to the second cavity, and the other end of the second tether is used for connecting to the seat body.

[0029] Optionally, the first auxiliary chamber is used to be closer to the front end of the first cavity relative to the rear end of the first cavity in the inflated and ejected state.

[0030] An embodiment of the present invention further provides an automotive seat, including a seat body and the distal airbag described above, and the first cavity, the second cavity, and the first auxiliary chamber are all used to be accommodated in the seat body in the storage state.

[0031] The beneficial effects of the distal airbag and the automotive seat according to the embodiments of the present invention include, for example:

[0032] The distal airbag includes a main chamber and a first auxiliary chamber. The main chamber includes a first cavity and a second cavity. The first cavity communicates with the upper end of the second cavity. The first auxiliary chamber communicates with the position where the first cavity and the second cavity are connected. The first cavity is used to receive the head of the occupant in the inflated and ejected state. The second cavity is used to extend towards the legs of the occupant in the inflated and ejected state. The first auxiliary chamber is used to extend towards the head and chest of the occupant in the inflated and ejected state. In the working state, when a side collision occurs, the first cavity can receive the head of the occupant, the second cavity can receive the legs of the occupant, and the first auxiliary chamber can receive the head and chest of the occupant, improving the support force for the occupant's body, reducing the lateral displacement of the occupant during a side collision, and thus enhancing the protection effect.

[0033] The vehicle seat includes a distal airbag, which has all the functions of the distal airbag. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0035] Figure 1 Schematic diagram of the central airbag structure in the prior art Figure 1 ;

[0036] Figure 2 Schematic diagram of the central airbag structure in the prior art Figure 2 ;

[0037] Figure 3 Schematic diagram of the structure of the distal airbag provided in Embodiment 1 of the present invention;

[0038] Figure 4 Mirror image schematic diagram of the distal airbag provided in Embodiment 1 of the present invention;

[0039] Figure 5 Schematic diagram of the working state of the distal airbag provided in Embodiment 1 of the present invention from the first perspective;

[0040] Figure 6 Schematic diagram of the working state of the distal airbag provided in Embodiment 1 of the present invention from the second perspective;

[0041] Figure 7 Schematic diagram of the forming of the first cut piece provided in Embodiment 1 of the present invention;

[0042] Figure 8Schematic diagram of the formation of the second cut piece provided in Embodiment 1 of the present utility model;

[0043] Figure 9 Schematic diagram of the connection between the first cut piece and the second cut piece provided in Embodiment 1 of the present utility model;

[0044] Figure 10 Schematic diagram of the structure of the distal airbag provided in Embodiment 2 of the present utility model;

[0045] Figure 11 Mirror image schematic diagram of the distal airbag provided in Embodiment 2 of the present utility model;

[0046] Figure 12 Working schematic diagram of the distal airbag provided in Embodiment 2 of the present utility model;

[0047] Figure 13 Schematic diagram of the formation of the first cut piece provided in Embodiment 2 of the present utility model;

[0048] Figure 14 Schematic diagram of the connection between the first cut piece and the second cut piece provided in Embodiment 2 of the present utility model;

[0049] Figure 15 Schematic diagram of the structure of the distal airbag provided in Embodiment 3 of the present utility model;

[0050] Figure 16 Mirror image schematic diagram of the distal airbag provided in Embodiment 3 of the present utility model;

[0051] Figure 17 Working schematic diagram of the distal airbag provided in Embodiment 3 of the present utility model;

[0052] Figure 18 Schematic diagram of the formation of the second cut piece provided in Embodiment 3 of the present utility model;

[0053] Figure 19 Schematic diagram of the connection between the first cut piece and the second cut piece provided in Embodiment 3 of the present utility model;

[0054] Figure 20 Schematic diagram of the formation of the second cut piece provided in Embodiment 4 of the present utility model;

[0055] Figure 21 Schematic diagram of the structure of the distal airbag provided in Embodiment 5 of the present utility model.

[0056] Icons: 1 - Existing occupant; 2 - Existing distal airbag; 3 - First sub - chamber; 4 - Second cavity; 5 - First cavity; 6 - First recessed area; 7 - Second recessed area; 8 - Third recessed area; 9 - First cut piece; 9a - First sub - piece; 9b - Second sub - piece; 10 - First folding line; 11 - Second extension piece; 12 - First airbag; 13 - First side seam; 14 - Second side seam; 15 - Third folding line; 16 - First extension piece; 17 - Second cut piece; 17a - Third sub - piece; 17b - Fourth sub - piece; 18 - Second folding line; 19 - Communication hole; 20a - First stitching section; 20b - Second stitching section; 21 - Intermediate stitching line; 22 - Second half - assembly; 23 - Third side seam; 24 - Fourth side seam; 25 - Fifth side seam; 26 - First channel; 27 - Second channel; 28 - Third channel; 29 - First half - assembly; 30 - Third airbag; 31 - Second airbag; 32 - First assembled airbag; 33a - Third extension piece; 33b - Fourth extension piece; 34 - Fourth folding line; 35 - Fifth folding line; 36 - Sixth folding line; 37 - Sixth side seam; 38 - Seventh side seam; 39 - Fourth airbag; 40 - First overlapping folding line; 41 - First blank of the first cut piece; 42 - Third half - assembly; 43 - Second assembled airbag; 44 - Fourth recessed area; 45 - Fifth recessed area; 47 - Fourth channel; 48 - Third cavity; 49 - Lower outer wall; 50a - Fifth extension piece; 50b - Sixth extension piece; 51 - Second blank of the second cut piece; 52 - Seventh folding line; 53 - Eighth folding line; 54 - Ninth folding line; 55 - Eighth side seam; 56 - Ninth side seam; 57 - Second overlapping folding line; 58 - Fifth airbag; 59 - Fourth half - assembly; 60 - Third assembled airbag; 61 - Fifth channel; 62 - Sixth recessed area; 63 - Seventh recessed area; 64 - Fourth cavity; 65 - Third blank of the second cut piece; 66 - Fifth half - assembly; 67 - First tether; 68 - Second tether; 69 - Central armrest; 70 - Occupant; 71 - Seat body; 72 - Chest; 73 - Head; 80 - Main chamber; 82 - Second sub - chamber; 85 - Recessed part; 91 - First plane; 92 - Second plane; 93 - Third plane. Detailed implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0058] Accordingly, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0059] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0060] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0061] In addition, terms such as "first", "second", etc. are only used for differential description and should not be construed as indicating or implying relative importance.

[0062] The term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0063] Unless otherwise clearly defined and limited, terms such as "arranged", "connected", etc. shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0064] It should be noted that, without conflict, the features in the embodiments of the present utility model can be combined with each other.

[0065] Reference Figure 1 and Figure 2, when a side collision occurs to a vehicle, it is also easy for the occupants 70 on the same side to collide with each other and cause injuries. Therefore, it is necessary to install an airbag at the central position of the vehicle to reduce the injuries caused by the collision between the occupants 70. Although the existing distal airbag 2 can support and protect the occupants 70, due to insufficient support force, the lateral movement of the existing occupant 1 is too large, and thus the protection effect is limited.

[0066] Embodiment 1

[0067] Reference Figures 3 - 9 , the distal airbag includes a main chamber 80 and a first sub-chamber 3 that are connected and communicate with each other. The first sub-chamber 3 is used to extend towards the head 73 and chest 72 of the occupant 70 in the inflated and ejected state.

[0068] In the working state, when a side collision occurs, the main chamber 80 can receive the torso of the occupant 70, while the first sub-chamber 3 can receive the head 73 and chest 72 of the occupant 70, improving the support force for the body of the occupant 70, reducing the lateral displacement of the occupant 70 during a side collision, and thus enhancing the protection effect.

[0069] It should be noted that the distal airbag is accommodated in the seat body 71 in the stored state. When a collision occurs, the distal airbag will inflate and eject, and make the main chamber 80 and the first sub-chamber 3 present a full state (i.e., the inflated and ejected state), thereby realizing the buffering and protection effect on the occupant 70.

[0070] Furthermore, in the inflated and ejected state, the first sub-chamber 3 is closer to the front end of the first cavity 5 relative to the rear end of the first cavity 5, that is, the distance between the first sub-chamber 3 and the front end of the first cavity 5 is less than the distance between the first sub-chamber 3 and the rear end of the first cavity 5. The front end and the rear end of the main chamber 80 respectively refer to the two ends in the front-rear direction of the vehicle. Similarly, in the inflated and ejected state, the first sub-chamber 3 is also closer to the front end of the second cavity 4 relative to the rear end of the second cavity 4.

[0071] Reference Figure 3 , the main chamber 80 includes a first cavity 5 and a second cavity 4. The first cavity 5 communicates with the upper end of the second cavity 4. The first cavity 5 is used to receive the head 73 in the inflated and ejected state, and the second cavity 4 is used to extend towards the leg direction of the occupant 70 in the inflated and ejected state. The first sub-chamber 3 communicates with the position where the first cavity 5 and the second cavity 4 are connected. By making the three communicate with each other, it is convenient to improve the gas flow rate, and thus improve the filling efficiency of each chamber.

[0072] Moreover, a first channel 26 is formed on the inner side of the bottom end of the first cavity 5, a second channel 27 is formed on the inner side of the top end of the second cavity 4, and a third channel 28 is formed on the inner side of one end of the first sub-chamber 3 close to the first cavity 5. The three channels are interconnected to achieve efficient gas flow and thus improve the filling rate.

[0073] Reference Figure 3 , for improving the buffer protection effect, so that the distal airbag can play a buffer protection role through its own deformation when being squeezed, a recessed portion 85 can be formed on the outer side of the position where the first cavity 5, the second cavity 4 and the first sub-chamber 3 are interconnected.

[0074] Specifically, the recessed portion 85 includes a first recessed area 6, a second recessed area 7 and a third recessed area 8. The first recessed area 6 is formed on the outer side of the position where the first cavity 5 is connected to the first sub-chamber 3. The first recessed area 6 is used to receive the head 73 and neck of the occupant 70. The second recessed area 7 is formed on the outer side of the position where the second cavity 4 is connected to the first sub-chamber 3. The second recessed area 7 is used to abut against the hand or other body trunk of the occupant 70. The third recessed area 8 is formed on the outer side of the position where the first cavity 5 is connected to the second cavity 4.

[0075] It should be noted that each recessed area presents a recessed shape in the filled state; and when receiving and supporting the trunk of the occupant 70, each recessed area can also be recessed respectively, so that each cavity and chamber can undergo corresponding deformations to better buffer and protect the occupant 70.

[0076] Reference Figure 3 , in order to make the overall shape of the distal airbag more ergonomic and thus produce a better buffer protection effect, it can be defined that the first cavity 5 has a first cross-section S, the second cavity 4 has a second cross-section V, the first sub-chamber 3 has a third cross-section K, an angle e is formed between the first cross-section S and the second cross-section V, and an angle f is formed between the second cross-section V and the third cross-section K; wherein, 0° ≤ e ≤ 80°, 10° ≤ f ≤ 100°.

[0077] Specifically, the size of e can be 0°, 40°, 80°, etc., and the size of f can also be 10°, 55°, 100°, etc. The specific angle sizes of the two are not limited.

[0078] It should be noted that the first plane 91, the second plane 92, and the third plane 93 can be introduced to illustrate the relative positions of each cross-section. The first plane 91 can be understood as a plane perpendicular to the front-back direction of the vehicle (which can also be the length direction of the vehicle), the second plane 92 can be understood as a plane perpendicular to the up-down direction of the vehicle (which can also be the height direction of the vehicle), and the third plane 93 can be understood as a plane perpendicular to the left-right direction of the vehicle (which can also be the width direction of the vehicle). In this embodiment, the first cross-section S can be regarded as perpendicular to the first plane 91, and at the same time, it is arranged at an angle with the second plane 92 and the third plane 93; the second cross-section V can be regarded as perpendicular to both the first plane 91 and the second plane 92, and is parallel or arranged at an angle with the third plane 93; the third cross-section K can be regarded as perpendicular to the first plane 91, and at the same time, it is arranged at an angle with the second plane 92 and the third plane 93.

[0079] Moreover, usually, the first cavity 5, the second cavity 4, and the first auxiliary chamber 3 are respectively asymmetric structures; of course, the three can also be symmetric. In the case where the three are symmetric structures, the first cross-section S can be regarded as the symmetry plane of the first cavity 5, the second cross-section V can be regarded as the symmetry plane of the second cavity 4, and the third cross-section K can be regarded as the symmetry plane of the first auxiliary chamber 3.

[0080] Reference Figures 7 - 9 , in order to improve the forming convenience of the distal airbag, the distal airbag can include a first cut piece 9 and a second cut piece 17. The first cut piece 9 and the second cut piece 17 are used to form the first cavity 5, the second cavity 4, and the first auxiliary chamber 3 through folding and sewing.

[0081] Reference Figure 7 , the first cut piece 9 includes a connected first sub-piece 9a and a second sub-piece 9b. A first folding line 10 is formed between the first sub-piece 9a and the second sub-piece 9b. The first sub-piece 9a is used to fold along the first folding line 10 to approach the second sub-piece 9b, and the two sides of the first sub-piece 9a and the second sub-piece 9b are sewn and connected to form the first cavity 5.

[0082] When operating on the first cut piece 9, the first sub-piece 9a and the second sub-piece 9b can be folded in half along the first folding line 10 first, and then sewn along their two sides to form a first side sewing line 13 and a second side sewing line 14. The first sub-piece 9a and the second sub-piece 9b after folding in half and sewing on both sides form a first airbag 12. After the first airbag 12 is inflated, it forms the first cavity 5. At this time, the first cut piece 9 forms a first half assembly 29 after folding and sewing.

[0083] Moreover, the first cut piece 9 further includes a first extension piece 16 and a second extension piece 11. The first extension piece 16 and the second extension piece 11 are respectively located at one end of the first sub-piece 9a and the second sub-piece 9b away from each other. The first extension piece 16 is stitched and connected to the second cut piece 17 to form a first auxiliary chamber 3, and the second extension piece 11 is stitched and connected to the second cut piece 17 to form a second cavity 4.

[0084] In addition, a third folding line 15 is formed between the first extension piece 16 and the first sub-piece 9a. After the first sub-piece 9a and the second sub-piece 9b are stitched, the first extension piece 16 can be folded along the third folding line 15.

[0085] Reference Figure 8 , the second cut piece 17 includes a connected third sub-piece 17a and a fourth sub-piece 17b. A second folding line 18 is formed between the third sub-piece 17a and the fourth sub-piece 17b. The third sub-piece 17a is stitched and connected to the first cut piece 9 to form a first auxiliary chamber 3, and the fourth sub-piece 17b is stitched and connected to the first cut piece 9 to form a second cavity 4. Specifically, the third sub-piece 17a is used for stitching and connecting with the first extension piece 16, and the fourth sub-piece 17b is used for stitching and connecting with the second extension piece 11.

[0086] Meanwhile, a communication hole 19 is provided at the connection of the third sub-piece 17a and the fourth sub-piece 17b. The second folding line 18 passes through the communication hole 19. The communication hole 19 has a first stitching section 20a and a second stitching section 20b symmetrically arranged with respect to the second folding line 18. The first stitching section 20a and the second stitching section 20b are used for stitching and connecting in the case where the third sub-piece 17a and the fourth sub-piece 17b are folded.

[0087] When operating on the second cut piece 17, the third sub-piece 17a and the fourth sub-piece 17b can be folded in half along the second folding line 18 first, and then stitched along the first stitching section 20a and the second stitching section 20b to form an intermediate stitching line 21. At this time, the second cut piece 17 is formed into a second half assembly 22 after folding and stitching.

[0088] Reference Figure 9 , the first half assembly 29 and the second half assembly 22 are stitched and connected. Specifically, the third sub-piece 17a can be stitched and connected to the first extension piece 16 to form a third airbag 30, and a third side stitching line 23 is formed at the stitched position; and the fourth sub-piece 17b is stitched and connected to the second extension piece 11 to form a second airbag 31, and a fourth side stitching line 24 and a fifth side stitching line 25 are formed at the stitched position. At this time, a first assembled airbag 32 is formed.

[0089] It should be noted that when the distal airbag acts on the occupants 70 on different sides, the first sub-chamber 3 can be located on the left or right side of the main chamber 80, that is, the specific relative position of the first sub-chamber 3 and the main chamber 80 can be determined according to the actual usage requirements.

[0090] Embodiment 2

[0091] Reference Figures 10 - 14 , considering from the perspective of further improving the support effect, the distal airbag can also include a second sub-chamber 82, which is communicated with the second cavity 4 and is used to be arranged below the first sub-chamber 3 in the inflated and ejected state.

[0092] Specifically, the second sub-chamber 82 includes a third cavity 48, and the third cavity 48 is communicated with the side of the second cavity 4 away from the first sub-chamber 3, that is, the third cavity 48 is used to abut against the center armrest 69.

[0093] When a squeezing collision occurs, the third cavity 48 abuts against the center armrest 69, which can slow down the lateral displacement of the first cavity 5 and the second cavity 4 away from the first sub-chamber 3, and then improve the protection effect on the occupant 70.

[0094] Reference Figure 13 and Figure 14 , in order to facilitate the forming of the third cavity 48, operations can be carried out on the basis of the first cut piece blank 41, and it includes a third extension piece 33a and a fourth extension piece 33b. The third extension piece 33a and the fourth extension piece 33b are sequentially connected between the second sub-piece 9b and the second extension piece 11. The third extension piece 33a and the fourth extension piece 33b are used to form the third cavity 48 through folding and sewing, and the third cavity 48 is communicated with the second cavity 4.

[0095] Specifically, a fifth folding line 35 is formed between the third extension piece 33a and the second sub-piece 9b, a fourth folding line 34 is formed between the third extension piece 33a and the fourth extension piece 33b, and a sixth folding line 36 is formed between the fourth extension piece 33b and the second extension piece 11. When folding, first bend the third extension piece 33a and the fourth extension piece 33b relative to the second sub-piece 9b and the second extension piece 11, and then fold along the fourth folding line 34 so that the third extension piece 33a and the fourth extension piece 33b approach each other. And during the folding process, the fifth folding line 35 and the sixth folding line 36 coincide with each other to form a first coincident folding line 40, and then the two sides are sewn to form the fourth airbag 39, and the sewing positions form a sixth side seam 37 and a seventh side seam 38. At this time, it becomes the third semi-assembly body 42. And the third semi-assembly body 42 is sewn and connected with the second semi-assembly body 22, and then the second total assembly airbag 43 is formed.

[0096] ReferenceFigure 10 To improve the buffering effect during the formation of the third cavity 48, the outer sides of the connection positions between the third cavity 48 and the second cavity 4 can be formed with a fourth concave area 44 and a fifth concave area 45. The fourth concave area 44 and the fifth concave area 45 are respectively located on the upper side and the lower side of the third cavity 48. Moreover, the bottom of the second cavity 4 is formed with a lower outer wall 49, and the lower outer wall 49 is arc-shaped. Both the fourth concave area 44 and the fifth concave area 45 are located on the upper side of the lower outer wall 49. In order to facilitate the gas flow between the third cavity 48 and the second cavity 4, a fourth channel 47 can be formed on the inner side of their connection part.

[0097] Embodiment Three

[0098] Reference Figures 15 - 19 From the perspective of further improving the support effect, the second sub-chamber 82 can also include a fourth cavity 64. The fourth cavity 64 communicates with the second cavity 4 on the side near the first sub-chamber 3 and extends towards the legs of the occupant 70. It should be noted that the third cavity 48 and the fourth cavity 64 can exist separately or simultaneously.

[0099] When a squeezing collision occurs, the fourth cavity 64 abuts against the legs of the occupant 70, increasing the support and abutting force on the occupant 70, so that the occupant 70 can maintain a safe posture as much as possible, thereby providing a better protection effect on the occupant 70.

[0100] Reference Figure 18 and Figure 19 To facilitate the formation of the fourth cavity 64, operations can be carried out on the basis of the second cut piece blank 51, which includes a fifth extension piece 50a and a sixth extension piece 50b. The fifth extension piece 50a and the sixth extension piece 50b are connected to the fourth sub-piece 17b, and the fifth extension piece 50a and the sixth extension piece 50b are used to form the fourth cavity 64 by folding and sewing.

[0101] Specifically, a seventh folding line 52 is formed between the fifth extension piece 50a and the upper half of the fourth sub-piece 17b, an eighth folding line 53 is formed between the fifth extension piece 50a and the sixth extension piece 50b, and a ninth folding line 54 is formed between the sixth extension piece 50b and the lower half of the fourth sub-piece 17b. During folding, first bend the fifth extension piece 50a and the sixth extension piece 50b relative to the fourth sub-piece 17b, and then fold them along the eighth folding line 53 so that the fifth extension piece 50a and the sixth extension piece 50b approach each other. Moreover, during the folding process, the seventh folding line 52 and the ninth folding line coincide with each other to form a second coincident folding line 57, and then the two sides are sewn to form a fifth airbag 58, and the sewing positions form an eighth side sewing line 55 and a ninth side sewing line 56. At this time, a fourth semi-assembled body 59 is formed. Then, the fourth semi-assembled body 59 is sewn and connected to the second semi-assembled body 22 to further form a third assembled airbag 60.

[0102] Reference Figure 15 , in order to improve the buffering effect for better formation of the third cavity 48, a sixth recessed area 62 and a seventh recessed area 63 can be formed on the outer side of the position where the fourth cavity 64 and the second cavity 4 communicate. The sixth recessed area 62 and the seventh recessed area 63 are respectively located on the upper side and the lower side of the fourth cavity 64. Moreover, a lower outer wall 49 is formed at the bottom of the second cavity 4, and both the sixth recessed area 62 and the seventh recessed area 63 are located on the upper side of the lower outer wall 49. And in order to facilitate the gas flow between the fourth cavity 64 and the second cavity 4, a fifth channel 61 can be formed on the inner side of their connection position.

[0103] Embodiment Four

[0104] Reference Figure 20 , operations can also be carried out on the basis of the second cut piece three blank 65. It does not have a communication hole 19 opened relative to the second cut piece 17, but it can still be folded in half along the second folding line 18, and after folding, a middle sewing line 21 is sewn to form a fifth semi-assembled body 66 to be connected. The fifth semi-assembled body 66 is used to be connected and formed with the first semi-assembled body 29 or the third semi-assembled body 42.

[0105] Embodiment Five

[0106] Reference Figure 21 , in order to further improve the stability of the distal airbag after inflation and ejection and prevent it from shifting during the process of resisting the occupant 70, tethers can be connected between different cavities and the seat body 71.

[0107] Specifically, the distal airbag further includes a first tether 67 and a second tether 68. One end of the first tether 67 is connected to the first cavity 5, and the other end of the first tether 67 is for connecting to the seat body 71. One end of the second tether 68 is connected to the second cavity 4, and the other end of the second tether 68 is for connecting to the seat body 71.

[0108] During the actual manufacturing process, only the first tether 67 can be designed, or only the second tether 68 can be designed, or both the first tether 67 and the second tether 68 can exist simultaneously, so as to achieve a better anti-side shift effect.

[0109] Embodiment Six

[0110] An embodiment of the present utility model further provides an automotive seat. The automotive seat is for installation in an automobile. The automotive seat includes a seat body 71 and a distal airbag. The first cavity 5, the second cavity 4, and the first auxiliary chamber 3 are all for being received in the seat body 71 in a stored state.

[0111] It should be noted that the seat body 71 can be a driver's seat in an automobile, a passenger seat, or a rear seat, and its specific layout position is not limited.

[0112] In summary, the distal airbag and the automotive seat provided by the embodiments of the present utility model at least have the following advantages:

[0113] (1) By providing the first auxiliary chamber 3 communicating with the main chamber 80 and making the first auxiliary chamber 3 extend towards the head 73 and chest 72 of the occupant 70 in an inflated and popped-out state, the limiting position of the occupant 70's body is improved, the limiting protection of the occupant 70 is strengthened, the lateral displacement of the occupant 70 during a collision is reduced, and thus the protection effect on the occupant 70 is improved.

[0114] (2) By providing the third cavity 48 and the fourth cavity 64, the supporting and resisting effect of the overall distal airbag is further increased, so that the supporting force of the distal airbag on the occupant 70 during action is greater, and the lateral displacement of the occupant 70 is minimized as much as possible, thereby fully protecting the occupant 70.

[0115] (3) By providing the first tether 67 and the second tether 68, the connection stability between the first cavity 5, the second cavity 4 and the seat body 71 can be increased, so that the two cavities will not easily shift when bearing the extrusion of the occupant 70, and thus a better anti-side shift effect is achieved.

[0116] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. A distal balloon, characterized in that, Comprising: A main chamber (80) and a first auxiliary chamber (3); Wherein, the main chamber (80) includes a first cavity (5) and a second cavity (4), the first cavity (5) communicates with the upper end of the second cavity (4), the first auxiliary chamber (3) communicates with the position where the first cavity (4) is connected to the second cavity (5), the first cavity (5) is used to receive the head (73) of the occupant (70) in the inflated and ejected state, the second cavity (4) is used to extend towards the legs of the occupant (70) in the inflated and ejected state, and the first auxiliary chamber (3) is used to extend towards the head (73) and chest (72) of the occupant (70) in the inflated and ejected state.

2. The distal balloon according to claim 1, characterized in that, A recess (85) is formed on the outer side of the position where the first cavity (5), the second cavity (4) and the first auxiliary chamber (3) communicate with each other.

3. The distal balloon according to claim 2, wherein The recess (85) includes a first recess area (6), and the first recess area (6) is formed on the outer side of the position where the first cavity (5) communicates with the first auxiliary chamber (3); And / or, the recess (85) includes a second recess area (7), and the second recess area (7) is formed on the outer side of the position where the second cavity (4) communicates with the first auxiliary chamber (3); And / or, the recess (85) includes a third recess area (8), and the third recess area (8) is formed on the outer side of the position where the first cavity (5) communicates with the second cavity (4).

4. The distal balloon according to claim 1, characterized in that, The first cavity (5) has a first cross-section S, the second cavity (4) has a second cross-section V, the first auxiliary chamber (3) has a third cross-section K, an angle e is formed between the first cross-section S and the second cross-section V, and an angle f is formed between the second cross-section V and the third cross-section K; Wherein, 0° ≤ e ≤ 80°, 10° ≤ f ≤ 100°.

5. The distal balloon according to claim 1, wherein The distal airbag further includes a second auxiliary chamber (82), the second auxiliary chamber (82) communicates with the second cavity (4), and is used to be arranged below the first auxiliary chamber (3) in the inflated and ejected state.

6. The distal balloon according to claim 5, wherein The second auxiliary chamber (82) includes a third cavity (48), the third cavity (48) communicates with the side of the second cavity (4) away from the first auxiliary chamber (3), and the third cavity (48) is used to abut against the center armrest (69); And / or, the second auxiliary chamber (82) includes a fourth cavity (64), the fourth cavity (64) communicates with the side of the second cavity (4) close to the first auxiliary chamber (3), and the fourth cavity (64) is used to extend towards the legs of the occupant (70).

7. The distal airbag according to claim 6, wherein A fourth recess area (44) and a fifth recess area (45) are formed on the outer side of the position where the third cavity (48) communicates with the second cavity (4), and the fourth recess area (44) and the fifth recess area (45) are respectively located on the upper side and the lower side of the third cavity (48).

8. The distal balloon according to claim 6, wherein On the outer side of the connection position between the fourth cavity (64) and the second cavity (4), a sixth concave area (62) and a seventh concave area (63) are formed. The sixth concave area (62) and the seventh concave area (63) are respectively located on the upper side and the lower side of the fourth cavity (64).

9. The distal balloon according to any one of claims 1-8, characterized in that, The distal balloon includes a first piece (9) and a second piece (17). The first piece (9) and the second piece (17) are used to form the first cavity (5), the second cavity (4), and the first auxiliary chamber (3) through folding and suturing.

10. The distal balloon according to claim 9, wherein, The first piece (9) includes a connected first sub-piece (9a) and a second sub-piece (9b). A first folding line (10) is formed between the first sub-piece (9a) and the second sub-piece (9b). The first sub-piece (9a) is used to fold along the first folding line (10) to be close to the second sub-piece (9b). The two sides of the first sub-piece (9a) and the second sub-piece (9b) are sutured and connected to form the first cavity (5).

11. The distal balloon according to claim 10, wherein, The first piece (9) further includes a first extension piece (16) and a second extension piece (11). The first extension piece (16) and the second extension piece (11) are respectively located at the ends of the first sub-piece (9a) and the second sub-piece (9b) that are away from each other. The first extension piece (16) is sutured and connected to the second piece (17) to form the first auxiliary chamber (3). The second extension piece (11) is sutured and connected to the second piece (17) to form the second cavity (4).

12. The distal balloon according to claim 11, wherein, The first piece (9) further includes a third extension piece (33a) and a fourth extension piece (33b). The third extension piece (33a) and the fourth extension piece (33b) are sequentially connected between the second sub-piece (9b) and the second extension piece (11). The third extension piece (33a) and the fourth extension piece (33b) are used to form a third cavity (48) through folding and suturing. The third cavity (48) communicates with the second cavity (4).

13. The distal balloon according to claim 9, wherein The second piece (17) includes a connected third sub-piece (17a) and a fourth sub-piece (17b). A second folding line (18) is formed between the third sub-piece (17a) and the fourth sub-piece (17b). The third sub-piece (17a) is sutured and connected to the first piece (9) to form the first auxiliary chamber (3). The fourth sub-piece (17b) is sutured and connected to the first piece (9) to form the second cavity (4).

14. The distal airbag according to claim 13, wherein, A communication hole (19) is opened at the connection of the third sub-piece (17a) and the fourth sub-piece (17b). The second folding line (18) passes through the communication hole (19). The communication hole (19) has a first suture section (20a) and a second suture section (20b) that are symmetrically arranged with respect to the second folding line (18). The first suture section (20a) and the second suture section (20b) are used to be sutured and connected when the third sub-piece (17a) and the fourth sub-piece (17b) are folded.

15. The distal balloon according to claim 13, characterized in that, The second cut piece (17) further includes a fifth extension piece (50a) and a sixth extension piece (50b). The fifth extension piece (50a) and the sixth extension piece (50b) are connected to the fourth sub-piece (17b), and the fifth extension piece (50a) and the sixth extension piece (50b) are used to form a fourth cavity (64) by folding and sewing.

16. The distal balloon according to any one of claims 1-8, characterized in that, The distal airbag further includes a first tether (67). One end of the first tether (67) is connected to the first cavity (5), and the other end of the first tether (67) is used to be connected to the seat body (71); And / or, the distal airbag further includes a second tether (68). One end of the second tether (68) is connected to the second cavity (4), and the other end of the second tether (68) is used to be connected to the seat body (71).

17. The distal balloon according to any one of claims 1-8, characterized in that, The first auxiliary chamber (3) is configured to be closer to the front end of the first cavity (5) relative to the rear end of the first cavity (5) in the inflated and ejected state.

18. An automotive seat, characterized in that, Comprising a seat body (71) and the distal airbag according to any one of claims 1-17, wherein the first cavity (5), the second cavity (4) and the first auxiliary chamber (3) are all configured to be received in the seat body (71) in the stored state.

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