JPH0212406Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a wick for combustion appliances made of non-woven (knitted) cloth used in kerosene stoves and kerosene heaters with an upper and lower wick. It is designed so that it can be done quickly.

In conventional wicks for combustion appliances with an upper and lower wick type, where the wick is woven or knitted with warp and weft threads, it is relatively easy to insert and lock the protruding locking claw of the wick holder. However, in order to make it easier to insert the locking pawl into the core, Japanese Utility Model Publication No. 57-44166 proposes a means of reducing the density of the thread in the portion corresponding to the locking pawl.
It is also known from Japanese Utility Model Application Publication No. 52-149333 to form a through hole in the portion of the core corresponding to the locking claw.

By the way, recently, as a type of core, a short fiber random web layer is integrally entwined with a long fiber layer or a short fiber twisted layer aligned almost parallel to the fuel suction direction using a needle punch, or a knitting machine is used. Alternatively, a fuel suction wick or a heat-resistant combustion wick made of a felt-like non-woven (knitted) fabric on the outer surface integrated by stitch bonding of a sewing machine or the like has been proposed.

In the case of a core fabric made of non-woven (knitted) fabric, the fibers on the surface are randomly intertwined, which not only makes it difficult to insert the protrusion locking claw of the core holder, but also As shown in FIG. 3, when the wick is installed, the attachment part of the claw swells inward, making it difficult to fit into the wick guide tube of the combustion appliance, and making the wick heavier at the top and bottom. Since the fibers on the surface of such a nonwoven core are randomly intertwined, it is not easy to reduce the yarn density as in the former example of the prior art. Furthermore, if through holes are provided, the fuel suction performance will be adversely affected.

As a countermeasure, if the tip of the locking claw is sharpened to make it easier to penetrate the nonwoven fabric core, the tip of the locking claw can be used to touch the painted coating layer or plating coating layer of the core guide tube when the core is raised or lowered. This causes problems such as peeling off or scratching, which causes rust, or getting caught in the inner tube of the core, making the top and bottom of the core uneven.

The present invention has been developed to deal with this situation. Namely, the core body is made up of a long fiber layer or a short fiber twisted yarn layer aligned in the fuel suction direction, and a short fiber random web layer. , and in a core for a combustion appliance formed of a non-woven (knitted) fabric that is laminated and integrated so that the short fiber random web layer is the outermost layer, a portion of the core corresponding to the locking claw of the core holder. By removing the short fiber random web layer in an appropriate direction and range, an engaging portion for inserting a locking pawl is provided in the area.

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2 and FIGS. 4 to 8.

In the figure, reference numeral 1 denotes a cylindrical core body, which is formed by integrally connecting 4 a heat-resistant combustion part 3 to the upper part of a fuel suction part 2 by means of sewing or the like. 5
is a core holder attached to the outer surface of the core body 1, and a plurality of locking claws 6, 6 are cut out at appropriate positions on the holder and can be directed inward and engaged with the fuel suction part 2 of the core body 1. It is protruded in the shape of a wedge.

The fuel suction section 2 is composed of a short fiber layer a, such as a long fiber layer or spun yarn of short fibers, which is aligned in the fuel suction direction, and a short fiber random web layer b, and the short fiber random web layer b. The web layer b is laminated as the outermost layer and integrated by needle punching, or by stitch bonding on a knitting machine, sewing machine, etc. to a desired thickness.

7, 7 are engaging parts for inserting the locking claws 6, 6 of the core holder 5 provided on the fuel suction part 2; This is achieved by removing a predetermined width of the short fiber random web layer b located at the outermost layer within an appropriate range. The above-mentioned engaging portion may be provided by cutting out the short fiber random web layer b on the surface layer of the core body 1, but it may also be provided on both the inner and outer layers as shown in Figures 2 and 4. . The direction of the engaging portions 7, 7 may be continuous in the horizontal direction as shown in FIG. 1, intermittent in upper and lower stages as shown in FIG. 7, or vertically as shown in FIG. Alternatively, they may be provided in multiple rows in the diagonal direction as shown in FIG. 6, or in both the horizontal and vertical directions as shown in FIG.

In the above embodiment, the engaging parts 7, 7 are provided in the fuel suction part 2, but the heat-resistant combustion part 3 is made of non-woven (knitted) fabric, and the locking claws 6, 6 are attached to the heat-resistant combustion part 2. 3, the engaging portion 7 can be provided at that portion. Reference numeral 8 indicates a reinforcing tape attached to the outer periphery of the core body 1, including the connecting portion 4.

When using the above configuration, when installing the core 1 into the core holder 5, the core holder is removed with the locking claws 6, 6 of the core holder 5 aligned with the engaging portions 7, 7 of the core 1. When pressed to expand in the direction, the short fiber random web layer b in the engaging portions 7, 7 of the core body 1 is removed, so that each of the locking claws 6 has a length that is aligned in the vertical direction inside the core body. The core body 1 is inserted between the fiber layers or short fiber twisted layers a as shown in FIG. 4, and is engaged and held by the core holder 5.

As described above, according to the present invention, the short fiber random web layer is removed from the outermost layer of the core at the portion corresponding to the locking claw of the core holder in an appropriate direction and range, thereby inserting the locking claw. The locking claws can be inserted and locked into the non-woven (knitted) fabric core easily and accurately. Since it is provided in the fiber random web layer, it has the effect of allowing stable use over a long period of time without impairing the strength of the core mainly in the vertical direction or deteriorating the fuel suction performance.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of an embodiment of the present invention;
The figure is an enlarged cross-sectional view of the main part of the core body, Figure 3 is an enlarged cross-sectional view of the mounting part of the conventional example, Figure 4 is an enlarged view of part A in Figure 1,
5 to 8 are partially cutaway front views showing other embodiments. 1 is a core body, 2 is a fuel suction part, 3 is a heat-resistant combustion part,
5 is a lead holder, 6 is a locking claw, and 7 is an engaging portion.

Claims (1)

[Claims for Utility Model Registration] All or part of the core body to which the heat-resistant combustion part is connected to the upper part of the fuel suction part, a long fiber layer or short fiber twisted layer aligned in the fuel suction direction, A wick for a combustion appliance is formed of a non-woven (knitted) fabric which is composed of a fiber random web layer and is laminated and integrated so that the short fiber random web layer is the outermost layer. A wick for a combustion appliance, characterized in that an engagement portion for inserting a locking claw is provided at the portion corresponding to the locking claw by removing the short fiber random web layer in an appropriate direction and range. .