JPH0129368Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Purpose of the invention) This invention aims to achieve good fuel suction efficiency, and also to ensure smooth bending and stretching when the wick goes up and down, thereby preventing dangers such as failure to extinguish due to unevenness when the wick goes down. It is something to do.

(Prior Art) Conventionally, a wick for a combustion appliance is known in which a core body 1' has an upper part as a heat-resistant combustion part 2' and a lower part as a fuel suction part 3' which are integrally connected.

In these conventional examples, the heat-resistant combustion section 2' is made of woven or knitted heat-resistant fibers such as glass fiber or carbon fiber, and the fuel suction section 3' is made of cotton fiber or other twisted fibers with good fuel suction properties. An integral core has been proposed in which a woven or knitted core is sewn together into the upper and lower parts, or the heat-resistant combustion section and the fuel suction section are latsell-knitted at the same time using a warp knitting machine.

Furthermore, in order to improve the fuel wicking characteristics, the applicant has constructed a fuel wicking section with one or more layers of long fiber layer 3a' consisting of a large number of long fibers arranged in the vertical direction, and a short fiber random web layer. The long fiber layer 3a' and the short fiber random web layer 3b' are laminated alternately so that the short fiber random web layer 3b forms the outermost layer and are integrated so as not to peel off. We proposed a non-woven (knitted) fabric that achieved a remarkable improvement in fuel absorption. (ed.) Because the fabric has the characteristic of becoming stiff, the bent part may remain bent and not restore its original shape.When the fuel level drops, the lower end of the core separates from the liquid level, even though fuel remains. There was a risk that combustion would stop due to poor fuel suction. (Refer to Figure 1) (Structure of the invention) As shown in Figures 2 and 3, the present invention includes a heat-resistant combustion section 2 in which heat-resistant fibers such as glass fibers or carbon fibers are woven or knitted in a core body 1. A long fiber layer 3a consisting of a large number of long fibers of rayon, cellulose acetate, polyamide, acrylic, polyester, polyvinyl formal, polyethylene, polypropylene, polyvinyl chloride, wholly aromatic polyamide, etc. arranged vertically on the top layer. Or with multiple layers, rayon, cellulose acetate, polyamide, acrylic, polyester, polyvinyl formal, polyethylene, polypropylene, polyvinyl chloride, fully aromatic polyamide, cotton,
The long fiber layer 3a and the short fiber random web layer 3b are composed of a plurality of short fiber random web layers 3b such as hemp, wool, etc.
The upper fuel suction part 3 is laminated alternately to form the outermost layer and integrated by needle punching or stitch bonding, and the upper fuel wick part 3 is woven or knitted with twisted yarn such as cotton fiber, with only warp yarn groups in the appropriate places, Lower fuel suction part 4 formed with curtain-like bent part 4a
5, 5a are abutted against each other and integrally connected by stitching or the like so as to form the lower ends. 6 in the figure is a reinforcing tape.

FIG. 4 is a partially enlarged cross-sectional view showing an example in which the thickness is adjusted by appropriately increasing or decreasing the number of laminated long fiber layers 3a and short fiber random web layers 3b of the upper fuel wicking section 3. The number of laminated layers may be increased or decreased as appropriate.

(Other Examples) Fig. 5 shows a partially cutaway slope view of a convection type wick with the heat-resistant combustion part 2 as a molded wick, and Figs. 6 to 8 show the lower fuel suction part 4. Fig. 6 shows an example of continuous knitting or knitting in a cylindrical shape, in which a bent portion 4a and a knitted (woven) portion 4b are formed at a desired core diameter D. It can be efficiently manufactured by knitting (weaving) the lower fuel suction part 4 by repeatedly and continuously, and then cutting and dividing the knitted (woven) parts 4b of the lower fuel suction part 4 for each unit length 4. Fig. 7 shows an example of a fabric knitted (woven) in a planar shape, with a development width D ₁ of the core cylinder diameter and a bending part 4a and a knitting part 4b in the length direction. After knitting (weaving) alternately and repeatedly, the lower wicking part 4
The knitted (woven) part 4b is cut and divided into unit lengths of 4, and each divided piece is wound and sewn into a cylindrical shape, or the divided pieces of the upper wicking part 3 and the heat-resistant combustion part 2 are sewn to each divided piece. After joining, they are wound and sewn to form a cylinder.

Furthermore, as another embodiment, as shown in FIG. 8, twisted warp threads 4d are arranged in parallel on a paper plate 4c, and a plurality of rows of fray-preventing stitches 4 are arranged perpendicularly to the warp thread groups 4d.
After repeatedly forming the stitched portion 4f and the bending portion 4a, the stitched portion 4f may be cut and divided into units of length 4 of the lower fuel suction portion 4, and then wound and sewn into a cylindrical shape. In addition, in this case, the bending part 4
The paper version 4c of a may be used after being cut and removed.

(Effect of the invention) The fuel suction section of the present invention is composed of two stages, an upper fuel suction section 3 and a lower fuel suction section 4, and the upper fuel suction section 3 and the upper fuel suction section 3 are knitted (woven) with ordinary twisted yarn. Comparing the wicking characteristics (suction speed, wicking height, and wicking amount) in the wicking part, the upper fuel wicking part 3 of the present invention has a long fiber layer 3 that is connected vertically and stacked in layers.
Since the capillary spaces formed by a are thin and communicated vertically in large numbers without intersecting, the wicking speed at which kerosene permeates is extremely fast compared to the thick and intermittent capillary spaces formed by ordinary twisted yarns. It has an excellent ability to rise to high places, and since both the front and back surfaces are formed in a felt shape, there are fewer uneven surfaces, so when interposed between the inner core cylinder and the outer core cylinder, the gap between the core and the outer cylinder is minimized. Therefore, it is possible to reduce oil leakage when the equipment falls over.

In addition, the lowermost stage is equipped with a lower fuel suction section 4 which is knitted or woven with twisted yarn and has a bending section 4a formed only by groups of warp yarns. It has the effect of increasing the oil content, and since it is located at the lowest part of the tank near the kerosene surface, the lower fuel suction part 3 overcomes the shortcoming of the upper fuel suction part 3, which is the lack of oil absorption performance.
In addition, unlike non-woven (knitted) fabrics, the bending part remains bent and the core body 1 does not fully extend to the lower end and separates from the fuel liquid level. This has the effect of eliminating all the various drawbacks caused by the inability to suck up residual fuel.

As described above, the present invention is a highly practical invention that combines various core materials to mutually compensate for the shortcomings of the conventional core materials and to obtain many advantages that have not been seen in the past.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway slope view of the core showing a conventional example.
Fig. 2 is a slope view of the embodiment of the present invention, Fig. 3 is a vertical sectional view of Fig. 2, Fig. 4 is an enlarged sectional view of the main part showing the embodiment of the upper fuel suction part, and Fig. 5 is another embodiment. Figure 6 is a perspective view of the main part showing the manufacturing process of the lower fuel suction part, and Figures 7 and 8 show the manufacturing process of other embodiments of the lower fuel suction part. It is a partially cutaway plan view shown. DESCRIPTION OF SYMBOLS 1... Core body, 2... Heat resistant combustion part, 3... Upper fuel wicking part, 3a... Long fiber layer, 3b... Short fiber random web layer, 4... Lower fuel wicking part, 4a
... bending part, 5, 5a... connection part.

Claims (1)

[Scope of Claim for Utility Model Registration] A wick for a combustion appliance in which a heat-resistant combustion part is integrally connected to the upper part and a fuel suction part to the lower part. It consists of one or more long fiber layers made of long fibers and multiple short fiber random web layers, and the short fiber random web layer is the outermost layer of the long fiber layer and the short fiber random web layer. an upper fuel suction part which is alternately laminated so as to form an integral structure so as not to peel off, and a lower fuel suction part which is knitted or woven with twisted yarns and has bending parts formed only by groups of warp yarns at appropriate places. A wick for a combustion appliance whose upper part is integrally connected by sewing or other means.