JPH0381046B2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> This invention relates to a wick for combustion appliances such as oil stoves and oil stoves that use kerosene as fuel.

<<Conventional technology>> Conventionally, as shown in Fig. 6 and Fig. 7, glass
Thick warps 30 made by simply bundling or twisting cotton or other fibers are arranged horizontally to form a warp layer 31,
Glass fiber felt-like fiber layer 3 on both the front and back sides
A core for a combustion appliance is known in which the glass fibers of the felt fiber layers 32, 32 are polymerized and entwined with the thick warp threads 30 arranged in parallel by needle punching (see Japanese Patent Publication No. 49-36170). ).

Also, as shown in FIG. 8, warped warp rows 40 of glass fiber yarn, natural fiber yarn, synthetic fiber yarn, etc.
A fabric 42 formed by surrounding or simply layering the weft 41 of the same kind of yarn impregnated with an adhesive and bonding both the warp and warp yarns is sewn into a cylindrical shape with the warp in the warp direction, and the wall has an inverted U cross section. The lower end edge 46 of the upper core 45 formed into a cylindrical shape from a flame-resistant material made of carbon fiber thread is brought into contact with the folded edge 44 of the upper end of the lower core 43, which is formed by folding the inner and outer double cylinders to form a letter shape. A wick for a liquid combustion appliance is known in which the wick is made of a heat-resistant fiber and sewn with heat-resistant fiber threads (see Japanese Utility Model Publication No. 46-23625).

Further, as shown in FIGS. 9 and 10, in the oil combustion wick comprising an oil combustion wick 50 and an oil suction wick 51, the contact portion 52 is connected to each warp yarn 53,
A wick for a liquid combustion appliance is known in which the end folded portions 54 are arranged so as to form the shape of a comb, the two are interlocked with each other, and the weft threads 55 are entwined and connected (see Japanese Patent Laid-Open No. (See Publication No. 51-17038, Japanese Unexamined Patent Application Publication No. 31633/1982).

Also, as shown in FIG. 11, the upper glass core 60
A core for liquid combustion appliances is known in which a lower cotton core 61 is sewn together with a suture thread 62 by zigzag stitching (see Japanese Patent Publication No. 54-20685).

<<Problems to be Solved by the Invention>> By the way, the wick for a combustion appliance shown in FIGS. 6 and 7 has felt-like fiber layers 32, 32 made of glass fiber.
A special shaped needle having a bulge at the tip is polymerized on both the front and back sides of a warp layer 31 formed by horizontally paralleling thick warp threads 30 made by simply bundling or twisting glass, cotton, or other fibers. Since the glass fibers of the felt-like fiber layers 32, 32 are entwined with the horizontally parallel thick warps 30 by needle punching, the adjacent thick warps 30 are separated and a large number of detached empty sections 3 are created.
3, 33... are formed and the thick warp threads 30 are arranged in parallel.
The warp layer 31 formed by the above-mentioned glass fiber felt-like fiber layers 32, 32 come into contact with each other and come apart, and furthermore, the warp threads 30 are deformed and the dimensions are unstable when the device is attached, resulting in poor fuel suction effect. The raising is not done evenly and becomes uneven, and the flame is not evenly aligned. Furthermore, in the warp layer 31 formed with thick warp threads 30, the warp threads 30 become uneven when the core is raised and lowered, so it is difficult to adjust the firepower by raising and lowering the core smoothly. There were drawbacks such as the inability to carry out That is, in the case shown in FIGS. 6 and 7, the large-diameter warp 30 is made by simply bundling glass fibers or the like in one direction, or the large-diameter warp 30 is made by twisting this bundled material. Therefore, when inserting a needle using a needle punch, the swollen part of the needle tip hits the large diameter warp threads 30 and cannot pierce them, and a strong force acts on the warp threads 30, causing the warp threads 30 and the felt-like fiber layer 32 to Also, when the needle is inserted by needle punching, the bulging part of the needle tip cannot pierce between the adjacent large diameter warp threads 30, 30, and the force that separates the large diameter warp threads 30, 30 is generated. The thickness of the warp layer 31, which is formed by arranging large diameter warps 30, differs depending on the insertion point of the needle by needle punching, and the degree of entanglement between the warp layer 31 and the felt-like fiber layers 32, 32 differs. It is something.

In addition, since the warp layer 31 is formed by arranging a large number of warp threads 30 with a large diameter, the thickness is not uniform over the entire surface, but the suction of fuel through the warp threads 30 with a large diameter is uniform on average. Furthermore, it is impossible to uniformly supply fuel to the felt fiber layers 32, 32 through the warp threads 30 over the entire surface, which results in uneven fuel suction and uneven supply of fuel. It had drawbacks such as the inability to carry out combustion.

Furthermore, since the swollen part of the needle tip gets in the way of this needle insertion, the felt fiber layers 32, 32 and the warp layer 3
1 cannot be sufficiently pierced from the front surface to the back surface, the fibers cannot be integrated by intertwining in fact, and the layers may peel off, making it impractical.

The wick for a liquid combustion appliance shown in FIG. 8 has a warp row 40, that is, a warp row formed of threads made by stretching fibers long and thin, and twisting them, and a weft thread 41, that is, fibers impregnated with an adhesive. The warp threads, which are stretched thin and long and twisted and impregnated with an adhesive, are surrounded or simply layered, and the warp rows 40 and the weft threads 41 are bonded together to form a fabric 42. The lower core 43 is formed by folding back so as to have an inverted U-shaped cross section in the warp direction, and the lower core 43 is further folded to form a lower core 43.
Since the lower end edge 46 of the upper core 45 was joined to the upper end folded edge 44, the upper end folded end edge 44 and the lower end edge 46 of the upper core 45 were not sufficiently joined.
Due to the folding, the warp rows are slightly compressed, which hinders fuel suction, and the fuel cannot be quickly sucked up to the upper end of the upper core 45, making it unusable for large models that require large firepower. First, it is not possible to ignite quickly.

In addition, when the core is moved up and down repeatedly, the claws of the core holding cylinder that cut into the lower core 43 or the upper core 45 may cut the warp and weft of the lower core 43 or the upper core 45, or the lower core 43 and the upper core 45 that cut into the claws. There were drawbacks such as loosening between the wick and the wick, making it difficult to move the wick up and down smoothly, resulting in poor combustion.

Further, in the wick for liquid combustion appliances shown in FIGS. 9 and 10, the contact portion 52 is connected to the respective warp threads 53 and
The folded ends of each end are arranged to form a comb tooth shape, which relies on special machinery, which results in extremely low productivity and inefficiency.Dimensions are likely to vary, and the defective rate is high. During use, the core tends to shrink and get stuck in the core guide tube of the instrument, causing problems due to poor lifting of the core.Furthermore, it tends to fray when cutting, requiring fray-preventing treatments such as oversewing the edges or applying adhesive. - Fuel suction efficiency deteriorates due to interlacing of the weft yarns, and the surface is uneven due to the weaving, and gaps are created between the warp and weft yarns, making it difficult to adhere tightly to the core guide tube of the device, causing damage to the inside of the tank. There are disadvantages such as an unnecessary draft effect occurring between the outside air, which impairs combustion performance and extinguishing performance, and also increases oil leakage when the appliance falls over.

In addition, in the wick for a liquid combustion device shown in FIG. 11, the upper glass wick 60 and the lower cotton wick 61 are sewn together using a zigzag stitch with a suture thread 62, which results in poor productivity for joining. It had the same drawbacks as the wick for liquid combustion appliances shown in FIGS.

This invention solves the above-mentioned problems. Fuel can be sucked up efficiently and evenly, there is no uneven combustion, and a wick having a desired thickness can be supplied depending on the model. It is easy to do, and the heating power can be adjusted smoothly by raising and lowering the wick to prevent uneven combustion. Nonwoven interlining can be mass-produced at low cost. The height (distance) of the lamp can be increased, and the liquid fuel can be prevented from being heated to a high temperature, preventing delamination of the interlining and causing poor fitting between the combustion appliance and the lamp wick. The object of the present invention is to obtain a wick for a combustion appliance that is convenient to use and allows safe combustion to continue without any problems.

≪Means for Solving the Problems≫ In order to achieve the above object, the wick for a combustion appliance of the present invention consists of a large number of heat-resistant fibers stretched in the same vertical direction and a large number of heat-resistant fibers bonded to each other with an adhesive. Several flexible sheet-like heat-resistant wide plates 12 made of long fibers are polymerized to form an upper heat-resistant long fiber layer 1, and heat-resistant short fiber random web layers 2, 2 are formed on both the front and back surfaces of the upper heat-resistant long fiber layer 1. At the same time, the upper heat-resistant long fiber layer 1 and the heat-resistant short fiber random web layers 2, 2 are integrally joined by needle punching to form the heat-resistant fiber layer 3, and the non-heat-resistant fibers are further added to the top and bottom of the same layer. A lower long fiber layer is formed by polymerizing several flexible sheet-like non-heat-resistant wide plates 13 made of non-heat-resistant long fibers that have good fuel wicking properties and are stretched long in the direction and bonded to each other via an adhesive. 9, and non-heat resistant short fiber random web layers 4, 4 having good fuel wicking properties are formed on both the front and back sides of the lower long fiber layer 9.
At the same time, the lower long fiber layer 9 and the non-heat-resistant short fiber random web layers 4, 4 are integrally joined by needle punching to form the fuel wicking fiber layer portion 5, and the heat-resistant fiber layer portion The cut serrated lower edge 6 of No. 3 and the cut serrated upper edge 7 of the fuel wicking fiber layer 5 are abutted together and the suture 11 is directly sewn to form a serrated joint 8. This is what I did.

≪Example≫ Hereinafter, an example of the present invention will be described with reference to the drawings. 1 is a flexible sheet-like sheet consisting of a large number of heat-resistant long fibers that are stretched long in the same vertical direction and bonded to each other via an adhesive. The upper heat-resistant long fiber layer is formed by polymerizing several heat-resistant wide boards 12 via the first polymerized wall surface portion 14, and heat-resistant short fiber random web layers 2, 2 are formed on both the front and back surfaces of the upper heat-resistant long fiber layer 1. The upper heat-resistant long fiber layer 1 and the heat-resistant short fiber random web layers 2 and 2 are integrally joined by needle punching to form the heat-resistant fiber layer portion 3.

Further, 9 is a flexible sheet-like non-heat-resistant wide plate 13 made of non-heat-resistant long fibers having good fuel wicking properties, which are made by stretching long non-heat-resistant fibers in the same vertical direction and bonding them together with an adhesive. The lower long fiber layer is formed by polymerizing several sheets through the second polymerized wall surface part 15, and on both the front and back sides of the lower long fiber layer 9, a non-heat resistant short fiber random web layer 4 having good fuel wicking properties, 4, and the lower long fiber layer 9 and the non-heat-resistant short fiber random web layers 4, 4 are integrally joined by needle punching to form the fuel wicking fiber layer portion 5.

Further, 8 is formed by abutting the cut serrated lower edge 6 of the heat-resistant fiber layer 3 and the cut serrated upper edge 7 of the fuel wicking fiber layer 5 and sewing a suture thread 11 in a straight line. This is a serrated joint.

Furthermore, the materials of the upper heat-resistant long fiber layer 1 and the heat-resistant short fiber random web layer 2 are selected with careful consideration of heat resistance. The materials of the lower long fiber layer 9 and the non-heat-resistant short fiber random web layer 4 include rayon, cellulose acetate, polyamide, acrylic, polyester, polyvinyl formal, polyethylene, polypropylene, polyvinyl chloride, and polyvinyl chloride, all of which have good fuel absorption properties. It is made of non-heat resistant fibers such as aromatic polyamide, cotton, linen, wool, etc., either alone or in combination.

Further, numeral 10 in the figure is a reinforcing tape that covers the sawtooth joint 8.

<<Operations and Effects of the Invention>> According to the present invention, the following operations and effects can be obtained.

Heat-resistant short fiber random web layers 2, 2 are provided on the front and back sides of the heat-resistant fiber layer section 3, and non-heat-resistant short fiber random web layers 4, 4 are provided on the front and back sides of the fuel wicking fiber layer section 5. Because of this, the cut edges do not fray and can be cut by punching, etc., and the dimensions of the heat-resistant fiber layer 3 and the fuel wicking fiber layer 5, the sawtooth shape of the lower edge 6, and the upper edge There is no variation in the dimensions of the saw blade-like shape of No. 7, and it can be manufactured uniformly.

Since the short fibers of the heat-resistant fiber layer 3 and the fuel wicking fiber layer 5 are randomly intertwined, the claws of the core holding cylinder can be accurately locked without damaging the short fibers, which may cause dimensional deviations during use. You can smoothly raise and lower the core without having to worry about it.

The upper heat-resistant long fiber layer 1 of the heat-resistant fiber layer section 3 and the lower long fiber layer 9 of the fuel wicking fiber layer section 5 are only formed by stretching long in the length direction, that is, in the vertical direction, and are made of fibers unlike conventional products. Compared to a product made of twisted thread, it produces the same effect as having more capillary tubes than conventional products, and has a high fuel suction speed, which generates a high amount of heat. Furthermore, since it is possible to increase the height between the liquid level of the liquid fuel in the fuel tank and the combustion part, it is possible to avoid the risk of the liquid fuel in the fuel tank being heated to a high temperature. It is.

The upper heat-resistant long fiber layer 1 is formed by polymerizing several flexible sheet-like heat-resistant wide plates 12 made of a large number of heat-resistant long fibers, and the upper heat-resistant long fiber layer 1 is formed by polymerizing a number of flexible sheet-like heat-resistant wide plates 12 made of a large number of heat-resistant long fibers. The lower long fiber layer 9 is formed by polymerizing several sheet-like non-heat-resistant wide plates 13, each having the same thickness over the entire surface and facilitating fuel suction on average. There is a problem that the fibers easily tear because there is little interlacing between the fibers. However, heat-resistant short fiber random web layers 2, 2 are polymerized on both sides of the upper heat-resistant long fiber layer 1, which is formed by polymerizing several flexible sheet-like heat-resistant wide plates 12 made of a large number of heat-resistant long fibers. A non-heat-resistant short fiber random web layer is formed on both sides of the lower long fiber layer 9 formed by polymerizing several flexible sheet-like non-heat-resistant wide plates 13 made of non-heat-resistant long fibers that have good wicking properties for many fuels. 4 and 4 are polymerized and integrally formed by needle punching, it becomes strong and has no dimensional variations such as uneven thickness like the conventional wicks for combustion appliances shown in Figures 6 and 7. Also, troubles caused by dimensional changes during use can be eliminated.

In a combustion appliance with a fuel tank located at the bottom, even if the fuel level in the combustion tank decreases as the combustion time increases, the suction of fuel does not decrease, so the firepower does not weaken.

Capillary action is also performed from the overlapping wall surfaces of several polymerized heat-resistant wide plates 12 and the overlapping wall surfaces of several polymerized non-heat-resistant wide plates 13 to promote fuel suction, and the number of polymerized sheets is selected depending on the model used. In other words, in the case of large models that require large firepower, it is necessary to increase the suction amount of fuel, so by increasing the number of overlapping heat-resistant wide plates 12 and non-heat-resistant wide plates 13, the suction amount can be increased. It is possible to easily form products with different shapes and reduce manufacturing costs.

In conventional technology, the cut edges of the heat-resistant part and the fuel suction part must be overlocked with an oversewing machine to prevent fraying, and the oversewing thread prevents contact between the two edges at the joint, causing the joint to become loose. This may impede the transfer of fuel, and the thickness of the cut edge increases due to the volume of the overdarning thread due to overdarning.
Although this sometimes caused problems in fitting the lamp wick and the combustion appliance, the lower edge 6 of the sawtooth-shaped cut edge of the heat-resistant fiber layer 3 and the upper edge of the cut saw-edge edge of the fuel wicking fiber layer 5 By simply butting 7 and sewing the suture 11 in a straight line to form the serrated joint 8, the efficiency required for joining is improved compared to the complicated zigzag stitch of the conventional product shown in FIG. This makes it suitable for mass production, improves the adhesion of the joints, prevents poor fuel wicking due to separation between the two, and allows the heat-resistant fiber layer 3 and the fuel wicking fiber layer 5 to
It has a large contact area with the fuel suction fiber layer 5 and can smoothly supply fuel from the fuel wicking fiber layer 5 to the heat-resistant fiber layer 3 without any hindrance.
It does not obstruct the fuel supply and reduce the supply of fuel to the heat-resistant fiber layer 3, and it cannot be used in models that require large firepower, such as the conventional product shown in Fig. 8. There are no drawbacks, and there is no problem in fitting the combustion appliance and the lamp wick, making it extremely convenient to use.

Unlike the conventional products shown in FIGS. 9 and 10, the productivity is extremely low and there is no inefficiency, and uniform products can be provided in large quantities at low cost.

[Brief explanation of drawings]

Fig. 1 is a partially enlarged cutaway plan view, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a sectional view taken along line B-B in Fig. 1, and Fig. 4 is a partially enlarged cross-sectional view. Cutaway plan view, 5th
The figure is a partially cutaway perspective view, Figure 6 is a perspective view of a conventional product, Figure 7 is a partially enlarged sectional view taken along A-A in Figure 6, Figures 8, 9, and 10. , FIG. 11 is an explanatory diagram of a conventional product. DESCRIPTION OF SYMBOLS 1... Upper heat-resistant long fiber layer, 2... Heat-resistant short fiber random web layer, 3... Heat-resistant fiber layer section, 4... Non-heat-resistant short fiber random web layer, 5... Fuel wicking fiber layer section, 6... ... lower edge, 7 ... upper edge, 8 ... serrated joint, 9 ... lower long fiber layer, 10 ... reinforcing tape, 11 ... suture thread, 12 ... heat-resistant wide plate,
13...Non-heat resistant wide plate, 14...First overlapping wall surface portion, 15...Second overlapping wall surface portion.

Claims (1)

[Claims] 1. A flexible sheet-like heat-resistant wide board 12 made of a large number of heat-resistant long fibers stretched in the same vertical direction and bonded to each other with an adhesive.
Polymerize several sheets to form the upper heat-resistant long fiber layer 1,
Heat-resistant short fiber random web layers 2, 2 are polymerized on both the front and back surfaces of the upper heat-resistant long fiber layer 1, and the upper heat-resistant long fiber layer 1 and heat-resistant short fiber random web layers 2, 2 are polymerized.
are integrally joined by needle punching to form the heat-resistant fiber layer 3, and then the non-heat-resistant long fibers are stretched long in the same direction up and down, and a large number of fuel absorbers are bonded to each other via an adhesive. A lower long fiber layer 9 is formed by polymerizing several flexible sheet-like non-heat resistant wide plates 13 made of non-heat resistant long fibers with good properties, and the front and back surfaces of the lower long fiber layer 9 absorb fuel. The non-heat-resistant short fiber random web layers 4, 4 having good properties are polymerized, and the lower long fiber layer 9 and the non-heat-resistant short fiber random web layers 4, 4 are integrally joined by needle punching to produce fuel wicking fibers. The layer portion 5 is formed, and the cut serrated lower edge 6 of the heat-resistant fiber layer 3 and the cut serrated upper edge 7 of the fuel wicking fiber layer 5 are abutted together, and the suture thread 11 A wick for a combustion appliance, characterized in that a serrated joint part 8 is formed by straight stitching.