Foldable wired electric blanket

Abstract

To provide a foldable electric blanket capable of locally warming foot tips, insteps, toes, calves, etc., which cannot be warmed by conventional electric blankets for bedding, blankets for chairs and lap blankets, and securing safety of wiring of folded parts.SOLUTION: An electric blanket 1 including straight sections in which heating wires 3 disposed between an outer and an inner blanket fabric of the electric blanket 1 are arranged substantially parallel to one another, and folded sections for connecting the straight sections together, the electric blanket 1 has a wiring structure arranged so that heating wires 3 do not overlap at folded and overlapped areas when the electric blanket 1 is folded, and the blanket is fixed by at least one type selected from a group consisting of hooks, buttons and fasteners attached to ends of part where the electric blanket 1 is folded and overlapped, thereby forming a bag-like structure at a part of the electric blanket 1.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] To provide an electric blanket which can be laid on a futon when sleeping and folded into a bag-like shape to be used, and which can be laid on a chair and folded into a bag-like shape to be used when sitting on the chair. [Background technology]

[0002] In recent years, many people have been exercising less due to the COVID-19 pandemic, which has led to people refraining from going out and the spread of telework. As a result of this sedentary lifestyle, muscle mass has decreased, and an increasing number of women are suffering from symptoms such as coldness. Women in particular tend to have cold toes and calves, so it is advisable to keep these areas warm.

[0003] Electric blankets are typically placed under a futon as a sheet or comforter to warm the entire body. To efficiently warm the entire blanket, the heating wires are arranged in a serpentine pattern throughout, and are fixed between the blanket fabric (outer layer) and the blanket fabric (inner layer). However, commercially available electric blankets are not designed to be folded to warm specific areas such as the toes and calves. When used folded, the heating wires overlap, causing the overlapping areas to become too hot, potentially leading to breakdowns or accidents.

[0004] Patent Document 1 describes an electric blanket that can stably heat the lower and / or upper body of a person seated in a single-seater chair. The heating wire is a serpentine wiring that is sandwiched and integrated between the outer and inner layers of the electric blanket.

[0005] In Patent Document 2, an electric blanket for bedding is folded over from the heels to the abdomen. Heating wires are distributed all over the blanket, with the heating wires being densely distributed in the foot area.

[0006] However, electric blankets such as those described in Patent Document 1 are designed to warm the back and buttocks when seated in a chair, but cannot be used to wrap around the feet, calves, or toes.

[0007] Furthermore, electric blankets such as those described in Patent Document 2 can be folded to warm the feet, calves, and toes, but when such an electric blanket is formed into a bag-like structure, the heating wires overlap, and the overlapping areas become too hot, which may lead to malfunctions or accidents. Another drawback is that its use is limited to being used as a bedspread. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent Publication No. 2011-189007 [Patent Document 2] Jippan 6-62872 Summary of the Invention [Problem to be solved by the invention]

[0009] To provide a foldable electric blanket capable of locally warming the toes, insteps, toes, calves, etc., which conventional electric blankets for bedding, blankets for chairs, and lap blankets cannot do, and which ensures safety of wiring in the folded parts. [Means for solving the problem]

[0010] In order to achieve the above object, the present invention provides the following means.

[0011] An electric blanket characterized in that it has a wiring structure in which the heating wires arranged between the outer and inner blanket fabrics of the electric blanket are arranged in straight sections in which they are approximately parallel to one another, and folded sections that connect the straight sections, and in which the heating wires do not overlap at the folded and overlapping parts when the electric blanket is folded, and in which the blanket is secured by at least one type selected from the group consisting of hooks, buttons and zippers attached to the ends of the folded and overlapping parts, so that part of the electric blanket is bag-shaped. [Effects of the Invention]

[0012] In the present invention, the heating wires do not overlap even when the electric blanket is folded, preventing malfunctions caused by overlapping heating wires and preventing the electric blanket from overheating and becoming too hot.The upper and lower parts of the folded part can be made into a bag-like shape using hooks or the like attached to each end.With conventional electric blankets, when sitting in a chair, a normal throw blanket does not warm the calves, and a normal bedspread does not warm the instep, but by putting the feet into the bag-like shape, the toes, instep, toes, calves, etc. can be warmed locally. In this way, it is possible to provide a foldable electric blanket that can locally warm the toes, insteps, toes, calves, etc., and that ensures safety of the wiring in the folded parts. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is an explanatory diagram of the arrangement of heating wires of an electric blanket according to one embodiment of the present invention. [Figure 2] FIG. 2 is an explanatory diagram of the arrangement of heating wires when the explanatory diagram of FIG. 1 is bent. [Figure 3] FIG. 10 is a side view showing the state in which the foot portion of the present invention is folded into a bag shape and the feet are placed inside when using the present invention. [Figure 4] FIG. 10 is a side view showing the state in which the blanket of the present invention is used while being folded. [Figure 5] FIG. 1 is a side view showing the state in which the present invention is used as a seat blanket on a chair. [Figure 6] FIG. 1 is a side view showing the state in which the present invention is used as a lap blanket while sitting on a chair. [Figure 7] FIG. 10 is a side view showing the state in which the present invention is used by sitting on a chair and folding it to use as a lap blanket. DETAILED DESCRIPTION OF THE INVENTION

[0014] An embodiment of an electric blanket according to the present invention will be described with reference to the drawings.

[0015] The outer and inner fabrics are not particularly limited, but examples thereof include woven fabrics, knitted fabrics, jacquard fabrics, and nonwoven fabrics.

[0016] The heating wire is wired inside the electric blanket as usual, and this heating wire is connected to the power source via a socket via a plug. The wiring pattern of the heating wire is a single system. For example, it is installed in a serpentine wiring pattern as shown in Figure 1, and when the end that is near the feet is folded back as shown in Figure 2, the heating wire is not installed in the overlapping part so that the wiring does not overlap.

[0017] The heating wire is made by laminating two layers of fabric, the outer and inner layers, and joining key points on the periphery and center with sewing thread, forming a tunnel-shaped insertion path in the unjoined part, and inserting the heating wire into the insertion path, thereby arranging the heating wire in a serpentine pattern.

[0018] The heating wire is not particularly limited, but examples thereof include a heater wire covered with a resin such as vinyl chloride.

[0019] There are no particular restrictions on the method for sewing the outer edges of the electric blanket, and the outer and inner linings may be integrated by sewing using a known method such as overlocking or tapelocking, followed by fray prevention processing.

[0020] Next, we will explain an example of how the electric blanket of the present invention can be used. The electric blanket of the present invention can be used as bedding, such as a bedspread. When used as a bedspread, the foot section can be folded to form a bag as shown in Figure 3, and the feet can be placed inside, keeping the instep and calves warm.

[0021] It can also be used as a bedspread, with the foot section folded as shown in Figure 4, keeping the entire foot area warm.

[0022] The electric blanket of the present invention can be used as a desk heater. As shown in Figure 5, when sitting in a chair, place it under your body as a blanket, fold the foot section, and place your feet inside the blanket to keep your buttocks, calves, insteps, and toes warm.

[0023] It can also be used as a desk heater by placing it over your lap when sitting in a chair, as shown in Figure 6. If you place it under your feet without folding the bottom part, as shown in Figure 6, it will warm your thighs to the knees and your toes to the soles of your feet.

[0024] Furthermore, as shown in Figure 7, if you fold the bottom part and use it as a lap blanket, it will keep you warm from the top of your thighs to your toes. However, in this case, the soles of your feet will not be warm. [Example]

[0025] The method for carrying out the present invention will be described in detail below. Note that the electric blanket and its manufacturing method of the present invention are not limited to the examples.

[0026] Example 1 Woven fabrics with a basis weight of 350 g / m2 were prepared for the outer and inner layers. A heating wire coated with vinyl chloride resin was prepared for the heating wire. The outer and inner layers were layered together, and key points on the periphery and center were joined with sewing thread to form a tunnel-shaped insertion path in the unjoined area. The heating wire was then inserted into the path, creating a serpentine arrangement. Next, plugs were attached to the corners, and the outer edges were secured with an overlock machine to prevent fraying, completing the electric blanket.

[0027] <Example 2> By attaching one of hooks, buttons, or zippers to both side edges of the folded part of the electric blanket of Example 1, the folded part was fixed into a bag shape, creating an electric blanket that could be used to put the feet inside.

[0028] The effectiveness of the electric blanket of the present invention was evaluated. As shown in Figure 5, the blanket was placed on a chair like a mattress pad, the foot area was folded to form a bag, and the feet were placed inside. The blanket was then turned on and used for two hours. Before and after using the electric blanket, the temperatures of the insteps and calves of both feet were measured using a thermograph (FILR E5). The results are shown in Tables 1 and 2. The results showed an average rise of 2 to 3 degrees in the insteps and calves of both feet.

[0029] [Table 1]

[0030] [Table 2]

[0031] As described above, the electric blanket of the present invention can be used as a regular electric blanket, as a bed sheet or a throw, and can also be laid out when sleeping and folded into a pouch at the foot, or laid out on a chair and folded into a pouch at the foot when sitting, to locally warm the feet, instep, toes, calves, etc. Furthermore, when used folded, the heating wires do not overlap, preventing malfunctions caused by overlapping heating wires and overheating of the overlapping parts, allowing for safe use. [Industrial Applicability]

[0032] The electric blanket of the present invention can be used, for example, while sitting in a chair. [Explanation of symbols]

[0033] 1. Electric blanket 2. Plug attachment part 3. Heating wire 4. Folding part 5 hooks 6. Heat generating part U·User

Claims

[Claim 1] A heating wire is placed between the outer and inner blanket fabrics, The heating wire has straight portions arranged substantially parallel to each other, and a folded portion connecting the straight portions to each other, A wiring structure in which the heating wires are arranged so as not to overlap at the overlapping portions when the blanket fabric is folded, The electric blanket is characterized in that the blanket fabric is folded and formed into a bag-like shape by one of hooks, buttons, and zippers attached to the ends of the overlapping portions.

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