JPS625523Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wick for oil-burning appliances.

Conventionally, two methods have been proposed for manufacturing cores for oil-burning appliances: one is woven using a loom, and the other is knitted using a warp knitting machine. In both cases, the upper part is made of glass fiber or other heat-resistant combustion part, and the lower part is made of cotton fiber or other fuel suction part.However, constructing the whole with the former type of woven structure requires a complex and diverse process.
Moreover, there is a disadvantage that there is a lot of material loss, which increases the cost, and the fuel absorption rate and evaporation performance during use decreases.Furthermore, when the entire core is made of a knitted structure, the number of weft yarns is significantly greater than that of a woven structure. Because of the small size, when used in a cylindrical shape, it becomes stiff and it is necessary to add a thin stainless steel plate etc. for reinforcement.In addition, when the whole is knitted, the gaps between each warp thread (as a trough between each warp thread) The lines formed by the gaps between the lines are interconnected in the vertical direction, so when the entire wick is suddenly lowered during an emergency fire extinguishment, the internal pressure gas in the tank is blown upward through the lines into the combustion cylinder. It has the disadvantage of causing abnormal flame formation on the equipment.

Therefore, when constructing the upper heat-resistant combustion section as a knitted structure, a technique was proposed in Utility Model Application Publication No. 56-47325 to strengthen the waist by using a middle core in the upper core. Threads made of heat-resistant single threads made of glass fiber, carbon fiber, etc. are sequentially arranged on the front and back sides of the core in the vertical direction, and these cores and multiple layers of threads are knitted and sewn using weft threads. This forms the upper core.

By the way, since the threads in the vertical direction in the upper core are each composed of a single independent thread, not only are thickness unevenness likely to occur due to thread unevenness, which is a major drawback of this type of heat-resistant fiber yarn, In order to achieve a predetermined thickness, each thread must have a certain thickness, and as a result, the valley-like gaps between each warp thread become large, causing problems such as oil leakage when the machine falls over. Since a single thread is arranged, it has the disadvantage of decreasing knitting efficiency.

The present invention is designed to eliminate the above-mentioned disadvantages, and its purpose is to knit the warp threads on the front and back surfaces of the reinforcing core in the heat-resistant combustion section by combining multiple threads. By aligning the warp threads in parallel, and repeatedly folding and arranging the warp threads so that they are positioned alternately toward the sides, the heat-resistant fiber threads are mixed as uniformly as possible. In addition to eliminating yarn irregularities, the purpose is to minimize the depth of gaps between warp yarns, make the overall thickness uniform, and improve knitting efficiency. In the core, the heat-resistant combustion part is made of a knitted structure, and the fuel suction part is made of woven, knitted, non-woven or other fabric and connected to each other. A plurality of threads made of heat-resistant fibers were arranged in parallel with a constant thickness on the front and back surfaces of the reinforcing core, which were arranged in parallel with spaces at appropriate intervals. The warp yarns are arranged by repeatedly folding them so that the plurality of warp yarn rows are alternately located laterally, and these warp yarn row groups on the front and back are knitted together with the reinforcing core using the weft yarn. The spaces between the reinforcing cores are cut along the longitudinal direction, and both edges of the cut portions are arranged in a dispersed manner to form fluffy portions, and the fluffy portions of the heat-resistant combustion portion are used as the combustion portion. It is characterized in that the connecting edge at the other end is connected to the upper edge of the fuel suction part so as to form a tip.

Examples of the present invention will be described below with reference to the drawings.
Reference numeral 1 designates a core body, in which a heat-resistant combustion part 2 made of knitted tissue is arranged on the upper part, and a fuel suction part 3 made of woven tissue is arranged in the lower part, which are integrally connected 4 by means such as stitching. A reinforcing tape 5 is attached to the outer surface of the portion 4. However, while the fuel suction section 3 is woven from fibers with excellent oil absorption properties, such as cotton, the heat-resistant combustion section 2 is made of a plurality of reinforcing sheets made of heat-resistant paper, etc., as shown in Fig. 2. The cores 2a and 2a' are arranged side by side with a space 6 of an appropriate width in between, and a certain amount of thread made of heat-resistant fibers such as glass fibers is attached to the front and back surfaces of these reinforcing cores 2a and 2a'. A plurality of rows of warp threads 2b, 2b' formed by arranging arbitrary plural threads (three in the example) in parallel so as to have a thickness of Then, the warp yarns 2b, 2b' are repeatedly folded and arranged, and the reinforcing core 2 interposed between the rows of the warp yarns 2b, 2b'
After knitting the overlapping portions of a and 2a' and other suitable places with a plurality of weft threads 2c and 2c' at predetermined intervals by means such as chain stitching, a suitable middle position of the space 6 is stitched in the longitudinal direction B- Cut along line B and divide into two parts, and then arrange both edges of the cut part in a dispersed manner to form fluffy parts 2d and 2d' at the tip and connect edge 2 at the other end.
e, 2e' are abutted against the upper edge of each of the fuel suction parts 3 and connected 4 by means of stitching or the like.

In the illustrated example, the weft yarns 2c and 2c' are arranged in such a manner that two rows of yarns 2b and 2b and rows of 2b' and 2b' are repeatedly folded and arranged in alternating positions on the front and back sides respectively. However, it is also possible to alternately intertwine three or more warp yarn rows and repeatedly fold them back and forth. By folding the warp yarns 2b, 2b' while folding and arranging a plurality of rows of the warp yarns 2b, 2b' (which become weft yarns when knitted with a knitting machine and are repeatedly folded and arranged on the left and right sides), Reinforcing cores 2a and 2a', which have been wound in advance, are sequentially inserted between the rows and fed into the plural rows of weft yarns 2c and 2c' (which become warp yarns when knitting with a knitting machine). The space 6 can be knitted continuously in the next step.
It is also possible to perform continuous processing while cutting along the B line. After that, it is necessary to cut it into a certain length and connect it to the fuel suction part 3 to form a flat core or a cylindrical core.

In addition, the cutting line of the space 6 may be cut in a straight line as shown in Fig. 4A, or in a zigzag shape as shown in Fig. 4B, or cut along a deformation line C in a stepped shape as shown in Fig. 4C. This allows the tip end of the core to be formed into a deformed shape.

Since the present invention is constructed as described above, the reinforcing core 2a,
The formation of fluff-like parts 2d and 2d' that are dispersedly arranged in the warp direction of the heat-resistant fibers without intervening fibers 2a' causes capillary phenomenon together with the alignment of the warp yarns 2b and 2b' in the warp direction under the condition group. The fuel uptake becomes extremely good and the combustion characteristics are improved.
In addition, it improves ignition and fire performance, significantly reducing odor and eye irritation during the initial stage of combustion.
Moreover, since the reinforcing cores 2a, 2a' are inserted so as to be recessed from the fluff-like tip edge, the thickness of the core tips can be reduced and carbonization, tar, and carbon adhesion of the reinforcing cores 2a, 2a' can be prevented. This eliminates the drawback of the conventional method, which causes failure of the lead to fall due to the excessive thickness of the tip of the lead in the event of adhesion, making it possible to mass-produce products that are robust and can withstand long-term use. .

In particular, according to the present invention, multiple rows of warp threads formed by arranging arbitrary plurality of threads made of heat-resistant fibers in parallel so as to have a constant thickness are repeatedly folded so as to be alternately positioned laterally. Since the fibers are arranged and knitted by turning them, the yarn unevenness, which is a major drawback of this type of heat-resistant fiber yarn, is eliminated, and the thickness of each part of the heat-resistant combustion part is made as uniform as possible. Compared to the above-mentioned conventional example in which the yarns are arranged in a single row, the valley-like gaps between the warp yarns can be made shallower, which prevents oil leakage when falling and improves knitting efficiency. Furthermore, since the properties of the fibers forming each yarn can be made different, heat-resistant fibers that are difficult to form into blended yarns can be easily aligned as warp yarns at the knitting stage after they are made into yarns. Furthermore, by arranging the plurality of warp threads alternately laterally, there is an advantage that they can be mixed uniformly.

In addition, it is possible to easily mix the same type of fiber with different fiber forms, for example, glass fiber spun yarn and long fiber textured yarn (bulky yarn). Taking advantage of its good oil absorption speed,
It has excellent advantages such as being able to achieve low cost and improving the advantages of each.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway slope view of the embodiment of the present invention;
The figure is a partially cutaway plan view showing the process of forming a heat-resistant combustion part, Figure 3 is an enlarged sectional view taken along line A-A in Figure 2, and Figure 4 is an enlarged cross-sectional view taken along line A-A in Figure 2.
Figures A, B, and C are front views of main parts showing examples of shapes at the time of cutting. 1 is a core body, 2 is a heat-resistant combustion part, 2a, 2a' is a reinforcing core, 2b, 2b' are warp threads, 2c, 2c' are weft threads, 2d, 2d' are fluffy parts, 2e, 2e' is the connecting edge.

Claims (1)

[Scope of utility model registration request] In a core for an oil-burning appliance in which a heat-resistant combustion part is integrally connected to the upper part of a fuel suction part, a plurality of reinforcing cores are arranged in parallel with a space of an appropriate width, and the reinforcing core is connected to the core. On the front and back sides, multiple rows of warp threads made of heat-resistant fiber threads arranged in parallel so that they have a constant thickness are arranged by repeatedly folding them so that they are alternately positioned laterally. After knitting these front and back warp thread rows together with the reinforcing core with weft yarn, the spaces between the reinforcing cores are cut along the longitudinal direction, and both edges of the cut portions are separated. A heat-resistant combustion part is formed into a fluffy part by smoothing the shape, and the connecting edge at the other end is connected to the upper edge of the fuel suction part so that the fluffy part becomes the tip of the combustion part. core.