air mattress

Abstract

An air mattress consisting mainly of an upper and lower surface layer (21, 22), each covered on the inside with an adhesive airtight adhesive film layer (TPU) and sealed all around, wherein a plurality of tension bands (23) are fastened between the upper and lower surface layers (21, 22) by a welding machine, wherein the plurality of tension bands (23) are arranged in parallel, wherein the upper and lower ends of the tension bands (23) are connected to the upper and lower surface layers (21, 22) to form a plurality of parallel and interconnected air channels (24), wherein a heat-insulating material (25) is provided in the air channels (24) on the upper and lower sides, wherein the heat-insulating material (25) consists of a galvanized PET (polyethylene terephthalate) aluminum film layer (251) and a synthetic cotton (252) laid thereon,wherein the upper side of the synthetic cotton (252) forms a plurality of welded sections (26, 27) with the adhesive film layer of the upper or lower surface layer (21, 22) by a welding machine.

Description

Technical area

[0001] The invention relates to an air mattress, in particular a warm air mattress. State of the art

[0002] Generally, the air mattress is used outdoors, such as mountaineering, outdoor trips, etc., and can be deflated and inflated for convenient carrying and use by the user. As in Fig. As shown in Figures 1 to 4, the air mattress 10 mainly consists of upper and lower surface layers 11, 12, each covered on the inside with an adhesive airtight adhesive film layer (TPU) and sealed all around. A plurality of tension bands 13 (made of TPU or other plastics) are fixed between the upper and lower surface layers 11, 12 using a welding machine. The plurality of tension bands 13 are arranged in parallel. The upper and lower ends of the tension bands 13 are connected to the upper and lower surface layers 11, 12 to form a plurality of parallel and interconnected air channels 14. A heat-insulating material 15 is provided on the upper and lower surfaces of the air channels 14, respectively. The heat-insulating material 15 consists of an aluminum film layer 151 and a synthetic cotton layer 152 superimposed thereon.The upper and lower aluminum film layers 151 face the air duct 14 to increase the radiation reflection of the temperature and achieve the warming effect of the air mattress 10. The upper surfaces of the synthetic cottons 152 form a welded portion 16 with the adhesive film layers (TPU) of the upper and lower surface layers 11 and 12 by a welding machine.

[0003] When outside air enters the air mattress 1 through the air valve 17, the air can flow through the air channels 14 and fill the entire air mattress 10 to form an inflated layer. The heat-insulating material 15 is moved by the upper and lower surface layers 11 and 12 through its welded portion 16, making the air mattress elastic and warm, providing the user with a comfortable place to lie while mountaineering or in the wilderness.

[0004] The heat-insulating material 15 of the air mattress 10 consists of a thin aluminum layer 151 and a synthetic cotton 152 superimposed thereon, and is connected to the upper or lower surface layers 11 and 12 via its welded portion 16. However, to avoid interference with the tension bands 13 during welding with the welding machine (since the tension bands are made of TPU or other plastic that melts at high temperatures), the welded portion 16 is generally located between two tension bands 13, i.e., the heat-insulating material 15 is fixed in the central region, while the two sides 153 and 154 are movable.When the heat-insulating material 15 moves through its welded portion 16 together with the upper or lower surface layer 11, 12 of the air mattress 10, the two sides 153, 154 of the heat-insulating material 15 bend toward the air duct 14, causing part of the air to flow between the upper or lower surface layer 11, 12 and the two sides 153, 154 of the heat-insulating material 15, so that the inflation integrity and the flatness of the heat-insulating material 15 cannot be ensured.

[0005] When the air mattress 1 is not in use, the air valve 17 is opened and the air mattress 1 is compressed to deflate. The air mattress 1 is then folded and stored. During the folding process, the two sides 153, 154 of the heat-insulating material 15 are movable, which frequently causes the two sides 153, 154 to bend into the air channel, thus preventing the heat-insulating material 15 from being kept flat. As a result, the heat-insulating material 15 cannot fully expand when the air mattress 1 is reinflated, which impairs the use of the air mattress 1 and reduces its heat-retaining effect. Object of the invention

[0006] The object of the invention is to provide an air mattress wherein the top surface of the synthetic cotton forms two welded sections with the upper or lower surface layer, wherein the maximum edge distance of the two welded sections is equal to or slightly smaller than the maximum width between the two sides of the heat-insulating material. This ensures that when the air mattress is inflated or stored, the heat-insulating material can be moved smoothly along with the upper and lower surface layers of the air mattress.

[0007] This object is achieved by the air mattress of the invention, which mainly consists of an upper and lower surface layer, each of which is covered on the inside with an adhesive airtight adhesive film layer and sealed all around, wherein a plurality of tension bands (made of TPU or other plastics) are fixed between the upper and lower surface layers by a welding machine, wherein the plurality of tension bands are arranged in parallel, wherein the upper and lower ends of the tension bands are connected to the upper and lower surface layers to form a plurality of parallel and interconnected air channels, wherein a heat-insulating material is provided in the air channels on the upper and lower sides, wherein the heat-insulating material consists of a galvanized PET (polyethylene terephthalate) aluminum film layer and a synthetic cotton layer laid thereon,wherein the upper and lower galvanized PET aluminum film layers face the air duct to increase the radiation reflection of the temperature, wherein the upper surface of the synthetic cotton forms two welded sections with the TPU adhesive film layer of the upper or lower surface layer by a welding machine, and wherein the maximum edge distance of the two welded sections is equal to or slightly smaller than the maximum width between the two sides of the heat-insulating material. Short description of the drawings Fig. 1 a perspective view of the conventional air mattress, Fig. 2 a partial sectional view of the conventional air mattress, Fig. 3 a sectional view of zone AA in Fig. 1, Fig. 4 an enlarged view according to Fig. 4, Fig. 5 a perspective view of the invention Fig. 6 a partial sectional view of the invention, Fig. 7 a sectional view of zone BB in Fig. 5, Fig. 8 an enlarged view according to Fig. 7, Fig. 9 a sectional view of the processing of the invention, Fig. 10 is a plan view of the preferred embodiment 1 of the invention, Fig. 11 is a plan view of the preferred embodiment 2 of the invention, Fig. 12 is a plan view of preferred embodiment 3 of the invention. Ways to implement the invention

[0008] As in the Fig. As shown in Figures 5 to 8, the air mattress 20 of the invention mainly consists of upper and lower surface layers 21, 22, each covered on the inside with an adhesive airtight adhesive film layer (TPU) and sealed all around. A plurality of tension bands 23 (made of TPU or other plastics) are fixed between the upper and lower surface layers 21, 22 by a welding machine. The plurality of tension bands 23 are arranged in parallel. The upper and lower ends of the tension bands 23 are connected to the upper and lower surface layers 21, 22 to form a plurality of parallel and interconnected air channels 24. A heat-insulating material 25 is provided on the upper and lower surfaces of the air channels 24, respectively. The heat-insulating material 25 is composed of a galvanized PET (polyethylene terephthalate) aluminum film layer 251 and a synthetic cotton 252 superimposed thereon.The upper and lower galvanized PET aluminum film layers 251 face the air duct 24 to increase the temperature radiation reflection. The upper surface of the synthetic cotton 252 forms two welded sections 26, 27 with the adhesive film layer (TPU) of the upper or lower surface layer 21, 22 by a welding machine. The welded sections 26, 27 are parallel to the tension bands 23. The maximum edge distance of the two welded sections 26, 27 is equal to or slightly smaller than the maximum width between the two sides 253, 254 of the heat-insulating material 25.

[0009] Fig. Figure 9 shows a schematic representation of the processing of the invention. When the synthetic cotton 252 is welded by the welding machine to form the welded sections 26, 27, a jig 29 can be inserted into the air duct 24. The jig 29 is placed precisely at the positions of the welded sections 26, 27 to prevent the welding machine from damaging the tension bands 23 made of TPU or other plastics due to high-temperature welding.

[0010] When outside air enters the air mattress 20 through the air valve 28, the air can flow through the air channels 24 and fill the entire air mattress 20 to form an inflated layer. The heat-insulating material 25 is carried along by its welded portions 26, 27 from the upper or lower surface layers 21, 22, thereby ensuring that the two sides 253, 254 of the heat-insulating material 25 do not bend into the air channel 24, thus maintaining the flatness of the heat-insulating material 25 during inflation. When the air mattress 20 is not in use, the air valve 28 is opened and the air mattress 20 is compressed to deflate. The air mattress 20 is then folded and stored. During the folding process, the two sides 253, 254 of the heat-insulating material 25 are in a fixed position.During the folding process, the two sides 253, 254 of the heat-insulating material 25 do not bend into the air duct, which makes the heat-insulating material 25 uneven, so that an air mattress 20 with a warming effect is provided.

[0011] Fig. 10 shows the preferred embodiment 1 of the invention, in which the upper side of the synthetic cotton 252 with the adhesive film layer (TPU) of the upper or lower surface layer 21, 22 form more than two welded sections 26, 27, 30 by the welding machine.

[0012] Fig. 11 shows the preferred embodiment 2 of the invention, in which the upper surface of the synthetic cotton 252 forms a plurality of welded sections 40 with the adhesive film layer (TPU) of the upper or lower surface layer 21, 22 by the welding machine. The welded sections 40 are perpendicular to the tension bands 23. The maximum width of the welded sections 40 is equal to or slightly smaller than the maximum width between the two sides 253, 254 of the heat-insulating material 25.

[0013] Fig.12 shows the preferred embodiment 3 of the invention, in which the upper side of the synthetic cotton 252 is joined to the adhesive film layer (TPU) of the upper or lower surface layer 21, 22 by the welding machine to form a strip-shaped welded section 50. The strip-shaped welded section extends in an arcuate or geometric shape between two tension bands 23. The maximum width of the welded section 50 is equal to or slightly smaller than the maximum width between the two sides 253, 254 of the heat-insulating material 25.

[0014] The invention described above is illustrated only by the best modes contemplated. Various modifications and implementations may be made by those skilled in the art, but these modifications and implementations should be considered within the spirit and scope of the present invention. List of reference symbols 10 air mattresses 11 upper surface layer 12 lower surface layer 13 drawstring 14 Air duct 15 heat-insulating material 151 Aluminum film layer 152 synthetic cotton 153,154 pages 16 welded section 17 Air valve 20 air mattresses 21 upper surface layer 22 lower surface layer 23 drawstring 24 air duct 25 heat-insulating material 251 galvanized PET aluminum film layer 252 synthetic cotton 253, 254 page 26, 27 welded section 28 Air valve 29 Clamping device 30,40,50 welded section

Claims

[1] An air mattress consisting mainly of an upper and lower surface layer (21, 22), each covered on the inside with an adhesive airtight adhesive film layer (TPU) and sealed all around, wherein a plurality of tension bands (23) are fastened between the upper and lower surface layers (21, 22) by a welding machine, the plurality of tension bands (23) being arranged in parallel, the upper and lower ends of the tension bands (23) being connected to the upper and lower surface layers (21, 22) to form a plurality of parallel and interconnected air channels (24), wherein a heat-insulating material (25) is provided in the air channels (24) on the upper and lower sides, the heat-insulating material (25) consisting of a galvanized PET (polyethylene terephthalate) aluminum film layer (251) and a synthetic cotton (252) laid thereon,wherein the upper side of the synthetic cotton (252) forms a plurality of welded sections (26, 27) with the adhesive film layer of the upper or lower surface layer (21, 22) by a welding machine. [2] Air mattress according to claim 1, characterized by that the welded sections (26, 27) are parallel to the tension bands (23). [3] Air mattress according to claim 2, characterized by that the maximum edge distance of the welded sections (26, 27) on the two sides is equal to or slightly smaller than the maximum width between the two sides (253, 254) of the heat-insulating material (25). [4] Air mattress according to claim 1, characterized by that the number of welded sections is two or more than two. [5] Air mattress according to claim 1, characterized bythat a clamping device (29) is inserted into the air duct (24), wherein the clamping device (29) is arranged exactly at the positions of the welded sections (26, 27). [6] Air mattress according to claim 1, characterized by that the upper side of the synthetic cotton (252) forms a plurality of welded sections (40) with the adhesive film layer of the upper or lower surface layer (21, 22) by the welding machine, the welded sections (40) being vertical to the tension bands (23). [7] Air mattress according to claim 6, characterized by that the maximum width of the welded sections (40) is equal to or slightly smaller than the maximum width between the two sides (253, 254) of the heat-insulating material (25). [8] Air mattress according to claim 1, characterized bythat the upper side of the synthetic cotton (252) forms a strip-shaped welded section (50) with the adhesive film layer of the upper or lower surface layer (21, 22) by the welding machine, wherein the strip-shaped welded section runs in an arcuate or geometric shape between two tension bands (23). [9] Air mattress according to claim 8, characterized by that the maximum width of the welding section (50) is equal to or slightly smaller than the maximum width between the two sides (253, 254) of the heat-insulating material (25).

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