JPH028207B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a wick for combustion appliances such as oil stoves and oil stoves that use kerosene or the like as fuel.

<Prior Art> This type of conventional wick for combustion appliances has a heat-resistant combustion wick made of glass fiber or a thick fabric of a blend of glass fiber and carbon fiber on the upper part of the fuel suction part made of a thick fabric of cotton yarn or a blend of cotton and rayon. It is known that a core for a combustion appliance is formed by forming a flat or cylindrical core body using an interlining material in which parts are connected.

In addition, thick warp threads made of glass, cotton, or other fibers are always bundled or twisted, and are arranged horizontally, and a felt-like fiber layer of glass fiber is polymerized on both the front and back sides, and the glass fibers of the felt-like fiber layer are formed by needle punching. A wick for a combustion appliance in which thick warp yarns arranged horizontally are entwined is known, for example, from Japanese Patent Publication No. 36170/1983.

<<Problems to be Solved by the Invention>> However, the former wick for combustion appliances had the following drawbacks.

(1) Productivity is extremely low and inefficient because production relies on old-fashioned special looms.

(2) In particular, the fuel suction section is made of very thick cotton yarn, such as 10 count 8-strand yarn, as the warp, and is narrow and has a special structure, so the number of looms is limited.
Furthermore, because the area used is large, there is often a shortage of supply.

(3) Dimensional variations are likely to occur, resulting in a high defective rate, and in addition to shrinking during use, the device's core guide tube is likely to get stuck, leading to problems such as improper lifting and lowering of the core.

(4) It tends to fray when cut, so it is necessary to apply fraying prevention processing such as overstitching the edges or applying adhesive.

(5) Fuel suction efficiency deteriorates due to interlacing of warp and weft threads.

(6) Due to the weaving, the surface is uneven, and there are gaps between the warp and weft yarns, which makes it difficult to adhere tightly to the core guide tube of the device, creating an unnecessary draft effect between the inside of the tank and the outside air. In addition to impairing fuel performance and fire extinguishing performance, oil leakage increases when equipment falls over.

In addition, as an attempt to improve productivity, a knitted core using a weft insertion warp knitting machine (Latusel warp knitting machine) has been proposed, but because it is not thick enough, for some reason, methods such as overlapping or double knitting are necessary. Unless it is removed, the fuel required to maintain combustion will not be sucked up, and the unnecessary draft action will deteriorate the combustion performance and fire extinguishing performance, further increase the amount of oil leakage due to overturning, and the wick holding cylinder will The disadvantage is that the warp stitching yarns are cut by the claws of the handles and the friction generated when the core is raised and lowered, causing the weft yarns to fall apart and become unusable, and neither of these is preferable.

The latter core for combustion appliances has a felt-like fiber layer made of glass fiber, which is made by simply bunching or twisting glass, cotton, or other fibers on the entire surface, arranging thick warp threads horizontally, polymerizing them on both the front and back sides, and then needle-punching them. Since the glass fibers of the felt fiber layer are entwined with the thick warp threads arranged horizontally, the adjacent thick warp threads are separated, and furthermore, the thick warp threads arranged in parallel and the felt fiber layer of glass fibers come into contact with or separate from each other. Due to warp warp deformation, dimensional instability when the device is attached, etc., the fuel suction effect is poor and the flame is not uniform, and since it does not have a fuel suction part, the firepower can be adjusted by smoothly raising and lowering the wick. There were disadvantages such as the inability to carry out

This invention solves the above-mentioned problems, and has good fuel suction efficiency, allows for smooth adjustment of firepower by raising and lowering the wick, and enables mass production of non-woven interlining at low cost. Furthermore, the height (distance) from the liquid fuel level to the combustion part can be increased, preventing the liquid fuel from being heated to high temperatures, and allowing complete combustion to continue. The purpose of this invention is to obtain a wick for a combustion appliance that is convenient to use.

<Means for Solving the Problems> To achieve the above object, the wick for a combustion appliance of the present invention consists of a large number of heat-resistant fibers that are arranged in the same direction in the upper and lower directions and are bonded to each other via an adhesive. A lower long fiber layer 5 is formed on the lower edge 6 of the upper long fiber layer 1, and is made of a large number of non-heat resistant fibers that are arranged in the same direction in the upper and lower directions and are bonded to each other via an adhesive, and have good fuel absorption properties. A contact portion 8 with the upper edge 7 in contact is provided to form a central long fiber layer 4, and heat resistant short fiber random web layers 2, 2 are polymerized on both sides of the central long fiber layer 4 to form a heat resistant short fiber random web layer. 2, 2 are exposed on the surface, and the upper long fiber layer 1
A heat-resistant combustion part 3 having a heat-resistant combustion part 3 and a fuel suction part 9 having a lower long fiber layer 5 are formed.

<<Example>> Hereinafter, an example of the present invention will be described with reference to the drawings. Reference numeral 1 indicates an upper long fiber layer consisting of a large number of heat-resistant short fiber twisted yarns arranged in the same vertical direction and bonded to each other via an adhesive; Further, 5 is a lower long fiber layer consisting of a large number of non-heat resistant short fiber twisted yarns which are arranged in the same direction vertically and bonded to each other via an adhesive and have good fuel absorption properties, and 4 is an upper long fiber layer 1. The central long fiber layer is formed by bringing the upper end edge 7 of the lower long fiber layer 5 into contact with the lower end edge 6 of the center long fiber layer to provide a contact portion 8 . Further, 2 is a heat-resistant short fiber random web layer 2, 2 polymerized on both sides of the central long fiber layer 4, and the heat-resistant short fiber random web layer 2, 2 is formed by polymerization so that it appears on the surface.
As shown in the figure or FIG. 3, one or several layers of the central long fiber layer 4 and several layers of the heat-resistant short fiber random web layer 2 are alternately polymerized. In addition, the central long fiber layer 4 and the heat-resistant short fiber random web layer 2,
In the polymerization process 2, short fibers are entangled by needle punching.

In addition, the materials of the upper long fiber layer 1 and the heat-resistant short fiber random web layer 2 are selected based on heat resistance. The materials of the lower long fiber layer 5 include rayon, cellulose acetate, polyamide, acrylic, polyester, polyvinyl formal, polyethylene, polypropylene, polyvinyl chloride, wholly aromatic polyamide, cotton, linen, and wool, all of which have good fuel absorption properties. It is made of non-heat resistant fibers such as, alone or in combination.

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

(1) Since interlining can be produced at high speed without the need for looms, knitting machines, etc., interlining can be obtained with higher productivity and at lower cost than before.

(2) Since the heat-resistant short fiber random web layer 2, 2 is provided on the surface and is made of non-woven fabric, fraying does not occur at the cutting edge, and it can be cut by punching, etc., and it can be manufactured uniformly with no variation in dimensions. It is possible.

(3) Since the surface has less unevenness, when it is attached to a device, there are fewer gaps between the fibers and the device, improving combustion performance and fire extinguishing performance.

(4) Since the short fibers are randomly intertwined, the claws of the core holding cylinder can be accurately locked without damaging the fibers, so dimensional deviations do not occur during use.

(5) The upper long fiber layer 1 and the lower long fiber layer 5 of the central long fiber layer 4 are provided with a contact portion 8 in which the lower edge 6 of the upper long fiber layer 1 contacts the upper edge 7 of the lower long fiber layer 5. This provides the same effect as having many capillaries running in the length direction, and has a high fuel suction speed, making it possible to generate a high calorific value. Since it is possible to increase the height between the liquid level and the combustion section, it is possible to avoid the risk of the liquid fuel in the fuel tank being heated to a high temperature.

(6) An upper long fiber layer 1 consisting of a large number of heat-resistant fibers bonded to each other via an adhesive, and a lower long fiber layer 5 consisting of a large number of non-heat-resistant fibers that have good fuel wicking properties and bonded to each other via an adhesive. It facilitates fuel uptake, but since there is less interlacing of fibers,
Although there is a problem of easy tearing, the heat-resistant short fiber random wear layers 2, 2 are polymerized on both sides of the upper long fiber layer 1 and the lower long fiber layer 5, making them strong and preventing dimensional variation during use. It is possible to eliminate the trouble caused by

(7) In combustion appliances with a fuel tank located at the bottom, as the combustion time increases, even if the fuel level in the fuel tank decreases, the amount of fuel absorbed will decrease and the thermal power will not weaken.

(8) Unlike the conventional joint core in which the heat-resistant combustion part and the fuel suction part are formed separately and brought into contact with each other by sewing means, the heat-resistant combustion part and the fuel suction part are integrated into a seamless core. This reduces wicking due to separation of the seams, which is a drawback of conventional cores.
It is possible to eliminate all of the drawbacks such as uneven combustion, uneven top and bottom wicks, inability to extinguish, poor dimensions, and high costs.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view, FIG. 2 is a partially vertical sectional view of FIG. 1, and FIG. 3 is a partially vertical sectional view showing another embodiment of FIG. 2. . 1... Upper long fiber layer, 2... Heat-resistant short fiber random web layer, 3... Heat-resistant combustion section, 4... Center long fiber layer,
5...Lower long fiber layer, 6...Lower edge, 7...Upper edge, 8
...Contact part, 9...Fuel suction part.

Claims (1)

[Claims] 1 At the lower edge 6 of the upper long fiber layer 1, which is made up of a large number of heat-resistant fibers arranged in the same direction above and below and bonded to each other via an adhesive, A contact portion 8 is provided in which the upper edge 7 of the lower long fiber layer 5 made of non-heat resistant fibers having good fuel absorption properties is provided to form the center long fiber layer 4. Heat-resistant short fiber random web layer 2 on both sides of the
2 to form a heat-resistant short fiber random web layer 2, 2
A wick for a combustion appliance, characterized in that a heat-resistant combustion part 3 having an upper long fiber layer 1 and a fuel wicking part 9 having a lower long fiber layer 5 are formed so as to appear on the surface.