Textiles: ironing or smoothing – Smoothing implements – Flatirons
Patent
1999-01-27
2000-02-29
Izaguirre, Ismael
Textiles: ironing or smoothing
Smoothing implements
Flatirons
74 30, D06F 7524, F16H 1904
Patent
active
060293799
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to the field of household electric appliances in general and it is applied more particularly (but not exclusively) to pressing irons.
It concerns more precisely a thermostat control device, particularly a pressing iron thermostat, and permits, for a given path of the control means, to obtain a more precise temperature regulation and above all in the zone of the most desired temperatures.
The device according to the invention is more particularly intended to assure a precise temperature regulation function. As such, the thermostat control device according to the invention concerns more specifically, but not exclusively, pressing appliances, such as pressing irons for example.
Temperature control of pressing irons is performed by a bimetal thermostat whose operation is effected directly by a rotary button or indirectly by a device of the rack and pinion type and a linear slider. In the two cases, the temperature selection range comprises one part for heating and another intended for adjustment for the different types of fabrics utilized.
The rack and pinion system permits one to have a reduction between the slider and the thermostat to increase the precision of the adjustment. A pressing iron must have a temperature selection range going from the maximum (220.degree.) to the shutting off of power at ambient temperature. In the context of a pressing iron using a device of the rack and pinion type to assure control of the thermostat, the path corresponding to the temperature selection phase constitutes only around one-half of the control range of said thermostat. The rest of the path of the control means corresponds to the heating phase, that is from the switching off of current to the first operating temperature of the iron.
The drawback of such a device is that around one-half of the path of the control means is not usable for selecting temperatures to be used during ironing. There thus remains less space usable to effectuate a precise adjustment in the range of operating temperatures of the iron.
BRIEF SUMMARY OF THE INVENTION
The invention has precisely for its goal to overcome this drawback, and proposes a control device for a thermostat, notably a thermostat of a pressing iron, which permits, for a given path of the control means, to obtain a more precise temperature adjustment and a longer path in the range of the most desired temperatures.
In order to attain this goal there is provided a control device for a thermostat, notably a thermostat of a pressing iron, comprising a support, an opening in said support to receive a mobile control means, a first rack forming means cooperating with said control means, guide means for said rack forming means, a pinion cooperating with the first rack forming means, characterized in that it comprises a second rack forming means disposed in the extension of said first rack forming means and that said pinion comprises two toothed zones whose respective root circle radii are different, the first toothed zone cooperating with the first rack forming means and the second toothed zone cooperating with the second rack forming means, said pinion being capable of rotating the shaft of said thermostat.
The thermostat control device according to the invention permits, for the same path of the mobile control means, to have a long adjustment path to the detriment of the approach path which becomes very small. This permits a precise adjustment for a larger range of adjustment temperatures. In addition, it is no longer necessary to displace the slider over a large range before arriving at the first operating temperature.
Another advantage connected with the utilization of a thermostat control device according to the invention is a better selection of a precise temperature corresponding to a given type of fabric.
Moreover, given the fact that the temperature adjustment range is larger, selection can be made for a larger number of temperatures and one thus obtains a large number of possibilities for corresponding fabrics to
REFERENCES:
patent: 2642027 (1953-06-01), Kircher
patent: 2976627 (1961-03-01), Kistner et al.
patent: 3224122 (1965-12-01), Jepson et al.
patent: 4516663 (1985-05-01), D'Alessio et al.
patent: 4748755 (1988-06-01), Bain, Jr.
patent: 5170577 (1992-12-01), Brandolini et al.
patent: 5195078 (1993-03-01), Ikedo et al.
Brandolini Jean-Louis
Garda Stephane
Izaguirre Ismael
Seb S.A.
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