Massage air bag for automobile seat

Abstract

The embodiment of the utility model relates to a massage air bag for an automobile seat, and belongs to the technical field of pneumatic massage devices for automobile seats. The massage air bag for the automobile seat comprises at least one air bag layer, the top of the air bag layer is provided with a top end protruding point reinforcing part, the bottom of the air bag layer is provided with a bottom end fixing layer, the side edge of the air bag layer is further integrally provided with an air pipe reinforcing part, and the air pipe reinforcing part is connected with an air pipe. The air bag is stable in performance and good in quality, blow molding is an integral forming technology, internal welding and edge welding are omitted, the air bag is an integral air bag set formed integrally, and the phenomenon of air leakage caused by open welding of the air bag is completely eradicated.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of pneumatic massage devices for automobile seats, and in particular to a massage air bag for automobile seats. Background Art

[0002] As living standards continue to improve, people's demands for vehicle performance, appearance, and safety are increasing, and so are their expectations for vehicle seat comfort. Seat comfort features are constantly being enhanced, with options like heating, ventilation, lumbar support, and massage, demonstrating people's pursuit of comfort.

[0003] The massage system primarily uses pneumatic massage, which is composed of one, two, three, or multiple layers of massage airbags. The current manufacturing process for massage airbags involves cutting a roll of TPU film or other materials into shape, followed by connection welding, edge welding, and air pipe welding. Taking a three-layer airbag as an example, the following problems exist: 1. Complex process: more than six die-cutting and forming steps are required, requiring more than six welding processes; 2. High material cost: low die-cut material utilization and significant waste; 3. Low production efficiency: cutting requires sorting and categorizing the pieces, while welding requires multiple placement and overlapping welding, which takes a long time; 4. Unstable performance: It is difficult to ensure the smoothness of the airbag perimeter during welding, and inconsistent weld thickness and peel strength are prone to occur. Under the high-pressure gas of long-term massage, the airbag welds open, leaks occur, and the massage function is lost.

[0004] In view of the above situation, there is an urgent need to design a massage air bag with simple process, low material cost, high production efficiency and stable performance. Utility Model Content

[0005] In view of this, an embodiment of the present application provides a massage air bag for a car seat to solve the technical problems raised in the background art.

[0006] The present application provides a massage airbag for a car seat, comprising at least one airbag layer, wherein the top of the airbag layer is provided with a top convex reinforcement portion, the bottom of the airbag layer is provided with a bottom fixing layer, and the side of the airbag layer is also integrally formed with an air pipe reinforcement portion, wherein the air pipe reinforcement portion is connected to the air pipe. In order to handle excess material at the top and bottom of the blow molding mold and to enhance the strength of the massage airbag for the car seat, a top convex reinforcement portion is added to the top of the massage airbag for the car seat, and a bottom fixing layer is added to the bottom, thereby facilitating increased massage intensity at the top and increased fixation stability at the bottom, thereby improving the performance of the massage airbag for the car seat; a puncture air inlet is added to the right side or other side of the bottom surface of the blow molding mold, and the mold blow molding port is optimized to be an air pipe reinforcement portion, which has a large thickness and facilitates subsequent welding.

[0007] In some embodiments that may include the above embodiments, the car seat massage airbag includes three airbag layers, namely a first airbag layer, a second airbag layer, and a third airbag layer. The first, second, and third airbag layers are integrally formed and interconnected. The top of the first airbag layer is provided with a top bump reinforcement portion, the bottom of the third airbag layer is provided with a bottom fixing layer, and the side of the third airbag layer is also integrally formed with an airway reinforcement portion, and the airway reinforcement portion is connected to the airway. The car seat massage airbag is composed of three airbag layers, but can also be composed of one airbag layer, two airbag layers, or four airbag layers, or even more airbag layers.

[0008] In some embodiments including the above embodiments, the shape of the car seat massage airbag includes, but is not limited to, circular, rectangular, diamond, or plum blossom shapes to match the seat layout. When the car seat massage airbag is circular, the diameter of the car seat massage airbag can be different sizes such as 50mm, 55mm, 60mm, 65mm, and 70mm.

[0009] In some embodiments that may include the above embodiments, the shape of the top end protrusion reinforcement portion includes but is not limited to a circular arc convex shape.

[0010] In some embodiments including the above embodiments, the thickness of the car seat massage airbag is 0.35-0.55 mm. In order to ensure the strength and service life of the car seat massage airbag, the thickness of the car seat massage airbag can be controlled within the range of 0.35-0.55 mm.

[0011] In some embodiments that may include the above embodiments, the airbag layer is made of a TPU material containing polyester / polyether polyol, and the air tube is made of a polyester / polyether TPU material. To ensure the softness, pressure resistance, and process feasibility of the massage airbag for automotive seats, the airbag layer is made of a TPU material containing polyester or polyether polyol, and the air tube is made of a TPU polyester or polyether material.

[0012] In some embodiments that may include the above embodiments, the trachea reinforcement portion is welded to the trachea.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] The airbags of this application have stable performance and good quality: blow molding is an integrated molding process, which eliminates internal welding and edge welding, and is an integrated molded overall airbag group, eliminating the phenomenon of air bag opening and leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a structural diagram of a massage air bag for a car seat in an inflated state according to an embodiment of the present application;

[0017] Figure 2 This is a structural schematic diagram of a massage air bag for a car seat in an embodiment of the present application in a deflated state;

[0018] Figure 3 This is a schematic diagram of blow molding of a massage air bag for a car seat according to an embodiment of the present application;

[0019] Figure 4 The left side schematic diagram of the corrugated blow molding mold;

[0020] Figure 5 It is the right side schematic diagram of the corrugated blow molding mold;

[0021] Figure 6 Schematic diagram of the left and right side of the corrugated blow mold.

[0022] Description of reference numerals:

[0023] 1. Top convex reinforcement part; 2. First air bag layer; 3. Second air bag layer; 4. Third air bag layer; 5. Bottom fixing layer; 6. Trachea reinforcement part; 7. Trachea. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art may adjust them as needed to suit specific applications.

[0026] Secondly, it should be noted that in the description of this application, terms such as "up", "down", "left", "right", "front", "back", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application.

[0027] Example 1

[0028] An embodiment of the present application provides a massage air bag for a car seat, comprising an air bag layer, a top convex reinforcement portion 1 being provided on the top of the air bag layer, a bottom fixing layer 5 being provided on the bottom of the air bag layer, and an air pipe reinforcement portion 6 being integrally formed on the side of the air bag layer, and the air pipe reinforcement portion being connected to an air pipe 7.

[0029] To address excess material at the top and bottom of the blow mold and enhance the strength of the car seat massage airbag, a top bump reinforcement is added to the top of the car seat massage airbag, and a bottom fixing layer is added to the bottom. This increases massage intensity at the top and stability at the bottom, thereby enhancing the performance of the car seat massage airbag. A puncture air inlet is added to the right side or other side of the bottom of the blow mold, and the mold blow molding port is optimized to form a trachea reinforcement. The thicker part facilitates subsequent welding. For example, high-frequency equipment is used for discharge welding of the trachea reinforcement to the trachea.

[0030] Specifically, the shape of the car seat massage airbag includes, but is not limited to, circular, rectangular, diamond, or plum blossom shapes to match the seat layout. When the car seat massage airbag is circular, the diameter of the car seat massage airbag can be 50mm, 55mm, 60mm, 65mm, 70mm, or other different sizes, which can be adjusted according to actual needs and are not limited in this embodiment of the application. Specifically, the shape of the top protrusion reinforcement portion 6 includes, but is not limited to, a convex arc shape.

[0031] Specifically, the thickness of the car seat massage airbag is 0.35-0.55 mm. In order to ensure the strength and service life of the car seat massage airbag, the thickness of the car seat massage airbag can be controlled within the range of 0.35-0.55 mm.

[0032] Furthermore, the airbag layer is made of TPU containing polyester / polyether polyol, while the air tube is made of polyester / polyether TPU. To ensure the softness, pressure resistance, and process feasibility of the car seat massage airbag, the airbag layer is made of TPU containing polyester or polyether polyol, while the air tube uses TPU polyester or polyether.

[0033] Example 2

[0034] like Figure 1-3 As shown, the car seat massage airbag of this embodiment can refer to Example 1, except that the car seat massage airbag includes three airbag layers: a first airbag layer 2, a second airbag layer 3, and a third airbag layer 4. The first airbag layer 2, the second airbag layer 3, and the third airbag layer 4 are integrally formed and interconnected. The top of the first airbag layer 2 is provided with a top convex reinforcement portion 1, the bottom of the third airbag layer 4 is provided with a bottom fixing layer 5, and the side of the third airbag layer 4 is also integrally formed with an airway reinforcement portion 6, which is connected to the airway 7. In other specific embodiments, the car seat massage airbag can also be composed of two airbag layers, four airbag layers, or even more airbag layers.

[0035] The manufacturing process of the massage air bag for car seat of this embodiment is as follows:

[0036] The TPU particle raw material containing polyester or polyether polyol is dried, dehumidified, and preheated. The barrel is preheated to heat and melt the raw material, and a tubular preform is extruded through an extruder. The tubular preform is placed in a blow mold and sealed. Then, the air holes are punctured from the bottom or other parts, and compressed air is introduced to inflate the inner preform to form an air bag layer structure. After cooling and maintenance, the air pipe reinforcement part 6 and the air pipe 7 are discharge-welded using high-frequency equipment to produce a massage air bag for a car seat.

[0037] The entire production process can be summarized as: TPU particle dehumidification - TPU particle preheating - TPU particle melting - extrusion of tubular billet by extruder - sealing in blow mold - puncture of bottom air hole - compressed air inflation - cooling treatment - maintenance - high-frequency welding of air pipe.

[0038] Specifically, the blow molding mold adopts a corrugated blow molding mold, such as Figure 4-6 As shown, the shape and size of the corrugated blow mold are compatible with the massage airbag for automotive seats. The blow mold dimensions and angles are designed, for example, by referencing the designed ejection height of the massage airbag for automotive seats. Preferably, after the airbag layer is blow-molded, the top convex reinforcement portion 1, bottom fixing layer 5, and air tube reinforcement portion 6 are trimmed. The trimming section is designed, and the trimming dimensions are set according to the actual process parameters.

[0039] Specifically, in the extrusion molding process, the extrusion wall thickness is controlled to be between 0.9-1.5 mm, for example, the wall thickness is 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, etc., which can be set according to actual needs, and this embodiment does not limit this.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A massage air bag for a car seat, characterized in that: The invention comprises at least one air bag layer, wherein the top of the air bag layer is provided with a top convex point reinforcement portion (1), the bottom of the air bag layer is provided with a bottom end fixing layer (5), and the side of the air bag layer is also integrally provided with an air pipe reinforcement portion (6), and the air pipe reinforcement portion (6) is connected to the air pipe (7).

2. The car seat massage air bag according to claim 1, characterized in that: The massage airbag for a car seat comprises three airbag layers, the three airbag layers being respectively a first airbag layer (2), a second airbag layer (3) and a third airbag layer (4); the first airbag layer (2), the second airbag layer (3) and the third airbag layer (4) being integrally formed and connected; a top convex point reinforcement portion (1) is provided at the top of the first airbag layer (2); a bottom fixing layer (5) is provided at the bottom of the third airbag layer (4); and a trachea reinforcement portion (6) is also integrally formed on the side of the third airbag layer (4).

3. The massage air bag for automobile seat according to claim 1, characterized in that: The shape of the massage airbag for the car seat includes but is not limited to circular, rectangular, diamond, and plum blossom shapes.

4. The car seat massage air bag according to claim 1, characterized in that: The shape of the top convex point reinforcement portion (1) includes but is not limited to a circular arc convex shape.

5. The car seat massage air bag according to claim 1, characterized in that: The thickness of the massage air bag for the car seat is 0.35-0.55 mm.

6. The massage air bag for automobile seat according to claim 1, characterized in that: The material of the air bag layer is a TPU material containing polyester / polyether polyol; the material of the air tube (7) is a polyester / polyether TPU material.

7. The massage air bag for automobile seat according to claim 1, characterized in that: The trachea reinforcement portion (6) is welded to the trachea (7).

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