JPH08330056A - Electric heater - Google Patents

Abstract

PURPOSE: To provide a light and flexible fabric electric heater having good touch and feeling with high productivity by arranging a cord-like heater wire in insertion passages between connection portions formed with a light and long intermediate texture on a lower texture, then providing an upper texture. CONSTITUTION: A weft and a warp are twill-woven, the lower face is raised to form a lower texture 8, and an intermediate texture 9 woven likewise is connected to it at multiple connection portions 11. The intermediate texture 9 is formed with a fewer count number of yarns or with a yarn smaller in diameter than the lower texture 8, and its weight for a unit area is preferably set to 60% or below that of the lower texture 8, e.g. a gauze-like light texture. The intermediate texture 9 is made longer than the lower texture 8 by the diameters or above a heater wire 12, and insertion passages are formed between the connection portions 11. The cord-like heater wire 12 is arranged in multiple insertion passages. An upper texture 10 is arranged on the intermediate texture 9, it is stuck to a structural body of the lower and intermediate textures 8, 10, or the periphery is sewn to provide an edge fabric 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric warming tool such as an electric blanket, and more particularly to an arrangement of heating elements.

[0002]

2. Description of the Related Art A conventional electric heating device made of cloth of this type has a tunnel-shaped structure formed by joining two fabrics into a tubular structure so that a joint for fixing a heating wire can be formed. A heating wire was inserted in the insertion passage. However, with such a configuration, there is a limit to the texture of the fabric, texture, heat retention, etc., and as shown in FIGS. 6 (a) and 6 (b), a method of configuring the Mayer fabric or the like in addition to the above configuration. Was taken.

In FIG. 6, reference numeral 1 denotes an upper cloth of Meyer knitting which is soft to the touch and has a good heat retaining property, and an inner cloth 2 and a lower cloth 3 are sequentially formed. Reference numeral 4 denotes an elongated fastening portion that fastens the middle fabric 2 and the lower fabric 3, and its structure is to weave the middle fabric and the lower fabric with a fastening thread formed by a part of the warp thread that fastens the middle fabric 2 and the lower fabric 3. At the time of raising, it is woven by bag-weaving so that the elongated fastening portion 4 is provided at the same time. A plurality of elongated fastening portions 4 are continuously formed at regular intervals, and an insertion passage is formed between the middle fabric 2 and the lower fabric 3 between the elongated fastening portions 4. The heating wire 5 is inserted and wired in the insertion passage. Then, the Mayer knit upper fabric 1 having a good texture and heat retention is aligned with the middle fabric 2 and the lower fabric 1 on which the heating wire 5 is wired, and the periphery is sewn and fixed with the edge fabric 6. ing. Reference numeral 7 is a controller that controls the heating wire 5 to a constant temperature.

In addition, as a method for constructing a fabric having a good feel, texture and heat retention, such as Mayer knitting, an adhesive is applied in the form of dots in the vicinity of the heating wire formed between the upper and lower two fabrics of the Mayer knitting. A method of applying and adhering the upper and lower Meyer fabrics to fix the heating wire has also been implemented.

[0005]

However, the conventional structure as described above has the following problems. That is, when the heating wire is laid on a cloth woven in a bag shape and the Mayer cloth or the like is combined on it, the bag-shaped middle cloth, the lower cloth, and the Meyer cloth are stacked, so that the weight is very heavy. Was heavy. Also, 3
Since the heating wire is constructed in the heavy fabric structure, the texture is relatively stiff, and especially when used as a hanging blanket, the texture is hard and the feeling of use is poor.

Regarding the method of fixing the heating wire by applying an adhesive in spots near the heating wire formed between the upper and lower two fabrics of the Mayer-knitting and adhering the upper and lower Meyer fabrics, In addition to impairing the feeling of use due to the weight of the adhesive and the feeling of foreign matter in the adhesive portion, there is also the problem that the texture becomes hard because the upper and lower fabrics are adhered and fixed. Furthermore, it is difficult to achieve high productivity by controlling the viscosity of the adhesive and the application time.

The present invention is intended to solve the above-mentioned drawbacks, and in the case of constructing a cloth electric heating tool using a Mayer cloth or the like,
The purpose is to realize a lightweight electric fabric warming tool that is lightweight, has no feeling of stiffness, feels good to the touch, and has high productivity.

[0008]

In order to achieve the above object, the electric warming tool of the present invention comprises, as a first means, a first cloth made of weft threads and warp threads, and a joining portion with the first cloth. A second fabric which has a lighter weight per unit area than the first fabric, and a string-like wire that is wired to a plurality of insertion passages formed by the joining portion of the first fabric and the second fabric. Heating line and the third configured on this second fabric side
Each of the constituent lengths of the first fabric and the second fabric, which are made of the above-mentioned constituent materials and constitute the periphery of the insertion passage,
The dough has a construction length longer than the diameter of the heating wire than the first dough.

As the second means, the first fabric made of weft and warp yarns is woven or knitted in the same manner as the first fabric so as to have a joint portion with the first fabric. A second fabric that is lighter in weight per unit area than that of the first fabric, and a string-shaped heating wire that is wired in a plurality of insertion passages formed by the joint portions of the first fabric and the second fabric. It is composed of a third constituent material formed on the side of the second cloth, the second cloth has almost no raised surface on both sides, and the first cloth is the surface opposite to the second cloth. It has a structure having a raised surface.

Further, as the third means, a first fabric made of weft yarn and warp yarn, and a configuration in which the number of weft yarns or warp yarns driven in is smaller than that of the first fabric, or the average diameter of the yarn is smaller, A second fabric that is woven or knitted in the same manner as the first fabric so as to have a joint portion with the first fabric, and a plurality of the second fabric that is composed of the joint portion of the first fabric and the second fabric. A string-shaped heating wire that is wired in each of the insertion passages, and a third constituent member that is formed on the side of the second cloth, and the first cloth and the second cloth.
The main material of the warp or weft of the cloth is that the difference in the ratio is 20% or less and the material composition is almost the same.

[0011]

With the first means, the second means, and the third means,
Of the two fabrics, the first fabric and the second fabric that fixes the heat generation line, the first fabric that also forms the outer appearance has a fabric structure that is soft to the touch and has a good texture, and is the second fabric for fixing the heat generation line. Is made of a material that is lighter per unit area than the first material within the range where the heating wire can be fixed. As the third component that makes up the appearance of the second material, the texture, feel, and heat retention are very high. By constructing an excellent fabric, etc., the second fabric that does not affect the appearance will be made lighter, and it will be lighter and less rugged, and provide an electric warming tool with excellent texture, touch, heat retention, etc. Will be able to. Moreover,
Since the heating wire can be inserted and wired in the constituent body of the first cloth and the second cloth and the third cloth can be arranged, high productivity is also possible.

In the first means, the constituent lengths of the first cloth and the second cloth forming the periphery of the heating wire insertion passage are set so that the second cloth is more likely to generate heat than the first cloth. Since the heating wire can be held at the portion having the long constituent length by configuring the constituent wire to have a longer constituent length than the diameter of the wire, the heating wire does not float on the outer appearance, and the second The dough and the heating wire of the first dough do not become stiff in the first dough and the third dough, do not become bulky or stiff, and become more supple and flexible as a whole.

According to the second means, the second fabric has almost no raised surface on both sides, and the first fabric has the second fabric.
By having a raised surface on the opposite side of the fabric, the appearance is a raised surface with a good feel and texture, and the second fabric configured in the middle is neither raised nor stiff, The play hair from the raised part does not collect inside. Further, the first cloth often contracts in the raising process, and the constituent length of the second cloth constituting the periphery of the heating wire insertion passage becomes relatively larger than the constituent length of the first cloth, The same action as the first means also appears.

Further, in the third means, the main material of the warp yarn or the weft yarn of the first fabric and the second fabric is composed of substantially the same material composition, so that it is used during actual use or washing. Shrinkage of the first and second fabrics in
Since changes in the fabric such as elongation proceed in the same manner, there is no sagging or distortion of the fabric as a whole of the fabric structure, and there is no feeling of stiffness, and the soft and supple fabric characteristics can be maintained for a long period of time.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 (a) and 1 (b) are cross-sectional views showing the configuration of the present embodiment, and FIG. 2 is a configuration diagram. In FIGS. 1 (a) and 1 (b), 8 is a lower fabric having a twill weave structure, and a middle fabric 9 and an upper fabric 10 are sequentially configured. The upper fabric 10 is a Meyer knitted fabric excellent in design and texture, and has a very good texture and feel. The middle cloth 9 is lightweight per unit area by driving 50% of the warp and weft threads into the lower cloth 8, and the appearance is gauze-like, overall lightweight, and the upper cloth 10 and the lower cloth 8 are the same. The material and composition realizes an electric warming tool with a high texture and excellent touch.

As shown in the detailed sectional view of FIG. 1B, the lower cloth 8 and the middle cloth 9 are woven at the same time so that the middle cloth 9 has a lower cloth 8 and a joint portion 11. . The elongated joint portion 11 is formed by the lower cloth 8 and the middle cloth 9.
Are woven by a fastening thread to be integrated, and a plurality of insertion passages are formed through the joint portion 11.
The heating wire 12 is wired in this insertion passage. Medium fabric 9
Is a gauze shape, and the state of the wired heating wire 12 can be easily checked. In addition, in FIG. 2, the constituent lengths of the lower cloth 8 and the middle cloth 9 that constitute the periphery of the insertion passage are such that the middle cloth 9 is longer than the lower cloth 8 by the diameter of the heating wire 12 or more. Is configured to have. Therefore, even when the lower cloth 8 is extended, the middle cloth after insertion is in a slackened state, and the heating wire 12 does not float on the appearance, and the middle cloth 9 and the heating wire 12 do not float. Does not become stiff, bulky or stiff in the lower and upper fabrics 7 and 9. In addition, 1
3 is an edge cloth for fixing the upper cloth 10, the middle cloth 9, and the lower cloth 8.

Further, since the length of the cloth forming the periphery of the insertion passage is difficult to measure because the cloth itself has flexibility, it is compared with the length when a load of 2 N per 1 inch width is applied. To do. In FIG. 1 and FIG. 2, the configuration length of the inner cloth 9 is described as being extremely long in order to clarify the configuration of the invention, but the measured value of the insertion passage at the foot portion of the electric heating tool of the present embodiment. Then, the length of the lower fabric part is 53.1 mm, the length of the middle fabric part is 56.5 mm, and the diameter of the heating wire is 2.1 mm.
Met. In this way, by making the constituent lengths of the lower cloth and the middle cloth constituting the periphery of the insertion path of the heating wire longer than the diameter of the heating wire, the middle cloth is more flexible and flexible as a whole. This is an extremely useful feature in terms of the usability of the electric heating tool as bedding, which is capable of realizing a highly comfortable electric heating tool with good texture.

Next, FIG. 3 is a sectional view showing the structure of a second embodiment of the present invention. The upper cloth 14, the middle cloth 15, and the lower cloth 1 are shown.
6 are sequentially configured. Further, a heating wire 18 is wired in the insertion passage formed by the fixing portion 17 of the middle cloth 15 and the lower cloth 16. The inner cloth 15 is made lighter in weight per unit area by making the thickness of the weft thread 1/3 the thickness of the lower cloth 16. Overall lighter than this,
Moreover, the upper and lower cloths 14 and 16 are provided with the material and structure to provide an electric warming tool having a high texture and excellent touch. Here, since the lower fabric 16 is napped on the lower side, and the upper side of the lower fabric 16 and the middle fabric 15 are not napped, the appearance is soft to the touch, the texture is good, and the inside is not stiff. The play hair from the raised part does not collect inside. Further, in the raising process of the lower cloth 16, the lower cloth 16 shrinks, and the middle cloth 15 becomes relatively longer than the lower cloth 16, and as a whole, like the first embodiment, it is flexible and rich in flexibility. It also has an excellent effect that an electric warming tool having a good texture can be realized.

Next, FIG. 4 is a sectional view showing the structure of a third embodiment of the present invention. Similar to the second embodiment, the upper cloth 1 is
9, middle cloth 20, and lower cloth 21 are sequentially configured. Further, a heating wire 23 is wired in the insertion passage formed by the joint portion 22 of the middle cloth 20 and the lower cloth 21. Regarding the materials of the lower cloth 21 and the middle cloth 20, both the warp threads are polyester and the weft threads are 100% cotton and 8 cotton, respectively.
The material was 0% / 20% polyester. This top cloth 1
9, the outer circumferences of the middle cloth 20 and the lower cloth 21 are sewn and fixed by a hem cloth 24. Therefore, in particular, due to the difference in expansion / contraction of the fabric due to the long-term use of the middle fabric 20 and the lower fabric 21 fixing the heating wire 23, sagging, distortion, etc. of the fabric as a whole fabric structure may be concerned. The main material of the warp yarn or the weft yarn of the middle fabric 20 and the lower fabric 21 is 20% or less in the ratio, and is composed of substantially the same material composition, so that there is no such problem and there is no feeling of stiffness as a whole. The soft and supple fabric characteristics can be maintained for a long time, which enables a comfortable electric heating device for a long period of time. In addition, it is preferable that the upper cloth 19 also has substantially the same material composition in the vertical direction and the horizontal direction.

Next, FIG. 5 is a sectional view showing the construction of a fourth embodiment of the present invention. The upper cloth 25, the middle cloth 26 and the constituent material 2 are shown in FIG.
7 are sequentially configured. This upper cloth 25, middle cloth 26
Has the same structure as the lower cloth 8 and the middle cloth 9 of FIG. 3, respectively, and the heating wire 29 is wired in the insertion passage formed by the joint fixing portion 28 of the upper cloth 25 and the middle cloth 26. ing. The constituent material 27 is a heat insulating material made of felt material, and is fixed to the inner cloth 26 by adhesion. With such a structure, it is possible to realize an electric carpet structure that is excellent in heat insulation and heat retention without being bulky or cumbersome, and is supple and flexible as a whole and has a good texture.

As described above, since the heating wire can be inserted and wired in the first and second dough components and the third dough can be arranged, high productivity is also possible. Not only that, but the material composition of the third fabric is changed to a material composition such as a Mayer knitted fabric that has a soft feel and a good texture, and a material composition such as felt material having high heat insulation and high heat retention. It also has the advantage of being able to easily realize the deployment of various electric warming tools that take advantage of the properties of the fabric material.

[0022]

As described above, the electric heating tool of the present invention has the following effects.

(1) A triple fabric structure in which a first fabric, a second fabric and a third fabric are sequentially formed, and the second fabric is lighter per unit area than the first fabric, Also the first
With a structure in which a string-shaped heating wire is wired in a plurality of insertion passages that are formed by the joint part of the second cloth and the second cloth, it is lightweight, has good texture, texture, and heat retention, and also generates heat. It is possible to realize an electric heating tool that makes it hard to feel the presence of lines.

(2) Each constituent length of the first cloth and the second cloth forming the periphery of the heating wire insertion passage is larger than the diameter of the heating wire in the second cloth than in the first cloth. By having a long construction length, the heating wire does not float on the outer appearance, and the second cloth and the heating wire do not become stiff in the first cloth and the third cloth. ,
Without being bulky or cumbersome, it is possible to realize an electric heating device that is supple, flexible and has a good texture as a whole.

(3) The second fabric hardly naps, and by forming the napped surface on the first fabric, the appearance is soft to the touch and the texture is good. The play hair can be configured so that it does not collect inside. Further, in the raising process, the second fabric becomes relatively longer than the first fabric, and like the above, it is possible to realize an electric warming tool which is supple and flexible as a whole and has a good texture.

(4) By configuring the materials of the first and second doughs with the same material composition, the sagging and distortion of the dough as a whole dough structure not only at the beginning of use but also after long-term use. There is no such thing as a stiff feeling, and a flexible and supple feeling can be maintained.

(5) Since the heating wires can be inserted and wired in the constituents of the first cloth and the second cloth and the third cloth can be arranged, high productivity can be achieved. Alternatively, by changing the material, composition, etc. of the third cloth, it is possible to easily realize a wide range of application and development of the electric heating equipment.

[Brief description of drawings]

FIG. 1A is a cross-sectional view of an electric heating tool according to an embodiment of the present invention. FIG. 1B is a detailed cross-sectional view of a heating wire forming portion of the electric heating tool according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of an electric heating tool according to an embodiment of the present invention.

FIG. 3 is a sectional view of an electric heating tool according to a second embodiment of the present invention.

FIG. 4 is a sectional view of an electric heating tool according to a third embodiment of the present invention.

FIG. 5 is a sectional view of an electric heating tool according to a fourth embodiment of the present invention.

FIG. 6A is a configuration diagram of a conventional electric heating tool. FIG. 6B is a cross-sectional view of the conventional electric heating tool.

[Explanation of symbols]

 8 Lower cloth 9 Middle cloth 10 Upper cloth 11 Joined part 12 Heating wire 13 Edge cloth

Claims (8)

[Claims] 1. A first fabric made of weft and warp yarns, a second fabric having a joint portion with the first fabric and having a lighter weight per unit area than the first fabric, and the first fabric. A heating wire in the form of a string, which is wired in a plurality of insertion passages formed by the joining portion of the cloth and the second cloth, and a third component formed on the side of the second cloth, The first cloth and the second cloth forming the periphery of the insertion passage.
Regarding the constituent lengths of the dough, the second dough has the first
An electric warming tool having a construction length longer than the diameter of the heating wire by at least the diameter of the heating wire. 2. The electric heating device according to claim 1, wherein the first fabric and the second fabric are woven or knitted in the same manner. 3. The electric heating tool according to claim 1, wherein the first fabric is made of a fabric having a larger number of weft threads or warp threads than the second fabric, or having a larger average diameter of the threads. 4. A first fabric and a second fabric which is woven or knitted in the same manner as the first fabric so as to have a joint portion with the first fabric and which is lighter per unit area than the first fabric. Of the first cloth and the second cloth, and a string-shaped heating wire that is wired in a plurality of insertion passages formed by the joint portion of the first cloth and the second cloth, and a third wire formed on the side of the second cloth. The electric fabric warming tool of claim 1, wherein the second fabric has almost no raised surface on both sides, and the first fabric has a raised surface on the opposite side to the second fabric. 5. The electric heating tool according to claim 4, wherein the first fabric is made of a fabric having a larger number of weft threads or warp threads than the second fabric, or having a larger average diameter of the threads. 6. A first material comprising a weft thread and a warp thread, and a composition in which the number of weft threads or warp threads driven in is smaller or the average diameter of the thread is smaller than that of the first material, and the first material and the joint portion. A second fabric that is woven or knitted in the same manner as the first fabric and has a plurality of insertion passages that are formed by the joining portion of the first fabric and the second fabric. It is composed of a string-shaped heating wire and a third constituent material formed on the side of the second fabric, and the main material of the warp yarn or the weft yarn of the first fabric and the second fabric has a difference in the ratio. Electric heating equipment with less than 20% and almost the same material composition. 7. The fabric according to claim 6, wherein the first fabric is a twill-woven fabric and the second fabric has a weight per unit area of 60% or less of that of the first fabric. Electric heating equipment. 8. A first dough and a second dough composition and a third dough.
The electric heating device according to any one of claims 1, 4, and 6, wherein the cloth is adhered or sewn around the cloth.