Textiles: ironing or smoothing – Smoothing implements – Flatirons
Patent
1986-11-21
1988-05-31
Rimrodt, Louis K.
Textiles: ironing or smoothing
Smoothing implements
Flatirons
38 779, 219275, 219530, D06F 7506
Patent
active
047472227
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a steam flatiron comprising a base element provided with the ironing bottom, and a casing element with a handle, further comprising heating means arranged above the base element, with evaporator means on the top side of the base plate, which communicate with the bottom side thereof through bores, and comprising thermostat means to regulate the adjustable temperature of the base element.
With such a flatiron, the base element is conventionally made in the form of a casting or die casting, e.g. consisting of aluminum. On its side turned away from the ironing bottom, this base element is provided with a grooved structure in which are embedded integrally cast heating means. Moreover, steam chambers open at the top are integrally molded on the base plate, for being closed by means of a cover, a gasket being required for sealing the cover from the base plate. The molding of the casting and the completion with the cover are complicated and expensive operations. Moreover, this results in a heavy weight of the flatiron. In other cases, the steam chambers are integrally cast in the ironing base. There are also flatirons in which the heating tube is directly included in a larger-size tube. The result of this design, however, is excessive steam heating since the heating system becomes very hot. To this adds that the heat transfer to the ironing plate is very bad. Furthermore, all of the afore-described solutions entail very high costs.
A bimetal regulator is provided to regulate the temperature. Its switching contact is arranged directly in the thermal flow of the hot flatiron plate so that it is highly susceptible of damage or failure.
The present invention is based on the problem of designing a flatiron of the type described by way of introduction in a manner that it will be simpler and less expensive to produce. According to an improvement of the invention, the temperature regulator means of the ironing bottom are to be so designed that its service life will be prolonged while reliability in operation will be enhanced.
This problem is solved by a flatiron of the type described by way of introduction, which, according to the present invention, is characterized by the fact that the base element is configured as a plane plate, that the heating means are designed as a heating coil attached to the plate, and that the evaporator means are designed as a tubular coil attached to the plate as well.
Further characteristics and expedient features of the present invention will result from the description of an embodiment, with reference to the drawing. In the drawing:
FIG. 1 is a plan view of the base element of a flatiron, with the heating and evaporator means;
FIG. 2 is a partial side view of the base element and the casing element, with one part of the casing wall being omitted for illustration of the inside structure;
FIG. 3 is a side view of the flatiron;
FIG. 4 shows a segment of the base element in transverse section, and
FIG. 5 illustrates the electrical wiring diagram of the flatiron.
The iron 1 comprises a base element in the form of a plane high-grade steel plate 2 made of VA material, and a casing 3 with a handle 4. A heating coil 5 made of VA material is soldered directly onto the plate 2 by means of a combined sintering/soldering method so as to allow for a direct heat transfer between the heating coil 5 and the plate 2. The heating coil 5 is so arranged on the plate that all areas of the plate will be uniformly heated, if possible. As proceeds from Fig. 2, the heating coil 5 is so designed that the heating effect proper stops at point 6 from where onwards the heating coil is no longer contacting the plate 2 and merely continues up to an electrical connector 7.
Another tubular coil 8 extends in parallel to the heating coil 5, which is also soldered directly to plate 2, by a combined sintering/soldering process, in a way that is contacts the heating coil 5 in areas of maximum extension possible. One end 9 of the coil 8 is closed while the other end is provided with delivery means 1
REFERENCES:
patent: 2284411 (1942-05-01), Fielding
patent: 2573174 (1951-10-01), Bate
patent: 3032861 (1962-05-01), Foster
patent: 3134182 (1964-05-01), Morton
patent: 3165844 (1965-01-01), Swanke
patent: 3930325 (1976-01-01), Schaeffer et al.
Brown Donald
Gammons Robert T.
Olds J. L.
Rimrodt Louis K.
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