DE1270705B - Electric iron with setting option for operation with two different voltages - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

Number:
File number:
Registration date:
Display day:

H05b

German KL: 21h-8

P 12 70 705.0-34
January 14, 1963
June 20, 1968

The invention relates to an electric iron with adjustment for operation with two different high voltages and with a movable handle, which can be moved from a bow position to a packaging position can be moved.

It is already an electric iron that can be connected to two different voltages known, in which a safety flap is provided on the socket arranged on the iron is that after pulling out the lead connector only releases these line pins that serve to switch off the higher voltage. To connect to the lower voltage, the must be on the safety flap provided for the socket can be adjusted and held in place.

In the known, with a socket for receiving the provided on the supply cord If the iron is fitted with a plug, there is a risk that the plug and the socket will be damaged when the The iron becomes very hot and will eventually be destroyed if the iron is moved back and forth Supply cord tensioned and thereby the electrical contact surfaces in the on the iron housing provided socket shifted against each other and thereby the contact resistances are increased. Therefore, nowadays the irons are preferably set up with one that is firmly attached to the iron housing Supply cord.

The subject of the invention is an electric iron with adjustment for operation with two different high voltages and with a movable handle, which can be in a bow position can be moved into a packaging position, which is characterized in that it is a Control button for a switch with one position for a higher and one position for a lower one Has voltage and that the control button and the switch by the movement of the handle in such a way operated so that the switch is automatically set to the position for a higher voltage, when the handle is moved to the packaging position.

The iron according to the invention is therefore automatic when pivoting the movable handle in the packaging position prepared for the higher voltage, so that with the next Commissioning an unintentional connection to a voltage that is too high is excluded. The iron according to the invention can be provided with a supply cord firmly attached to the iron housing and is particularly suitable as a travel iron.

Electric iron with adjustment option
for operation with two different heights
Tensions

Applicant:

General Electric Company,

Schenectady, N. Y. (V. St. A.)

Representative:

Dipl.-Ing. M. Licht and Dr. R. Schmidt,

Patent Attorneys, 8000 Munich 2, Theresienstr. 33

Named as inventor:

Arthur Clifford Downing, Ontario, Calif.

(V. St. A.)

Claimed priority:

V. St. ν. America January 16, 1962 (166 571)

The invention will now be explained in more detail with reference to drawings; in these shows

F i g. 1 is a plan view of an iron according to the invention,

F i g. 2, partly in section, a side view of the iron according to FIG. 1,

F i g. 3 is a side view of the rear part of the iron of FIG. 1 and 2, with the in packaging position The handle located with a continuous line and the handle located in the bow position Handle is shown with a dash-dotted line,

4 shows a section through the rear part of the iron,

Figure 5 is a circuit diagram of the heating elements of the iron according to the invention and

6 shows a longitudinal section through a heating unit which can be used in the iron according to the invention. The travel iron shown in the drawings according to the invention has a base plate 10, a cap 12 covering the base plate 10, a handle 14 and an electrical supply cord 16. If necessary, a water container 18 for generating steam can be provided on the cap 12. A control lever connected to a rotary knob 22 can be used to set the ironing temperature 20 may be provided.

The handle 14 is pivotally attached to the cap 12 and can be made from the structure shown in FIG. 2 shown

809 560/404

Ironing position in the packaging position shown in FIG. 3 are moved, in which the front end of the handle 14 rests against the cap 12. The handle 14 is at the rear end of the cap 12 by means of a fastening element 15 on the side walls 24 and 26 of a handle support 23 are pivotally attached.

The rear end of the handle 14 has a pocket-like recess 32 which supports the handle 23 records. The front side 28 of the handle support 23 is provided with an opening 30 through which extends a locking member 34, the downwardly projecting extension 36 between the front 28 of the handle support 23 and the back of the knob 22 is seated and by a on the Front 28 attached spring member 40 is pressed forward until the formation of a shoulder 42 from the locking member 34 upwardly protruding extension 38 rests on the front 28 and the Handle 14 is locked in the bow position by the locking member 34. Around the handle 14 To move into the packaging position, the locking member 34 is against the action of the Spring member 40 pressed backwards, whereby the locking of the handle 14 is released. If the handle 14 is moved from the packaging position into the bow position, the locking member snaps 34 forward and locks the handle 14 in the bow position.

The iron has two heating elements 46, 48, which are preferably embedded in the base plate 10 are. In the embodiment according to FIGS. 1 to 4, the two heating elements 46 and 48 are spaced apart arranged in a U-shape from one another, the ends of the heating element 46 being connected to terminals 50 and 52 and the ends of heating element 48 are connected to terminals 54 and 56, as shown in FIG. 4 shows. The heating elements 46 and 48 are constructed in the usual way.

A strand of the supply cord 16 is connected to a block 62 made of insulating material attached terminal 68, which in turn is connected to one terminal of a temperature setting switch 74 communicates. The other terminal of the temperature setting switch 74 is with the clamping screw 60 in connection, which is connected via a jumper 58 to one terminal 50 of the outer heating element 46 is connected. The other terminal 52 of the outer heating element 46 is over a jumper 66 is connected to one terminal 56 of the inner heating element 48, while the other terminal 54 of the inner heating element 48 is connected to the other strand of the supply cord 16 via a clamping piece 67 is. The two heating elements 46 and 48 are therefore connected in series.

If the iron is to be connected to a low voltage, the heating element 46 switched off by bridging it by a switch that has a fixed contact 70 and a has contact 72 seated on a flexible arm 73.

The resistances of the two heating elements 46 and 48 are preferably dimensioned such that they are in both Switch-on positions have the same watt consumption at the respective switch-on voltage, where the following relationship applies to the resistances:

v \

where R _{2 is} the resistance of heating element 46, R _{1 is} the resistance of heating element 48, V _{2 is} the higher voltage, and V _{1 is} the lower voltage.

The switch 70, 72 can be actuated via an angle lever 76 which, with the aid of pin 85 is pivotably mounted within the handle support 23. The lower end 78 of the angle lever 76 is made preferably made of insulation material and rests against the flexible arm 73. The other end of the bell crank 76 is designed as a projection 80 which extends through a slot 83 (FIG. 3) in the side wall 26 extends outward and carries a control button 82 by means of which the angle lever 76 is moved by hand can be. If the control button 82 is in the position shown in FIG. 2 lower layer shown, is the Contact 72 seated on arm 73 does not contact fixed contact 70 so that the iron is on the higher voltage can be connected. The flexible arm 73 rests on one of the cap 12 provided projection 84 made of insulation material. Should the iron be connected to the low voltage are, the control button 82 is moved up by hand, whereby the angle lever 76 in Pivoted clockwise and thereby the contacts 72 and 70 are brought together. How out F i g. 3, the end 78 of the angle lever 76, which is made of insulating material, is located to the left of the pivot pin 85, so that the angle lever 76 by the spring force of the arm 73 in a clockwise direction is pressed, whereby the control button 82 against unintentional adjustment from its upper layer is secured.

The control button 82 is immediately below the handle 14 when it is in its upper Location, d. i.e., when the low voltage is set. If the handle 14 is then in the packaging position When placed, he pushes the control button 82 down, causing the iron to operate automatically is set to the higher voltage. If the handle 14 is then pivoted back into the bow position the iron is set to the higher voltage so that it cannot be connected accidentally to the lower voltage cannot be done. If the iron is connected to the low voltage is to be, the control button 82 must be moved upwards.

Instead of the heating elements 46 and 48, the one shown in FIG. 6 heating unit can be used, which consists of an outer tube 86 in which two concentrically arranged heating coils 88 and 90 are arranged. The inner heating coil 90 is with a rod-like connector 92 and the outer Heating coil 88 connected to a tubular connecting terminal 94. The other ends of the heating coils 88 and 90 are connected to a common connection terminal 96. The pipe 86 is with electrically insulating, thermally conductive material 98, for example magnesium oxide, filled.

Claims (4)

Patent claims: 1. Electric iron with setting option for operation with two different heights Tensions and with a movable handle, which can be moved from a bow position to a Packaging position can be moved, characterized in that the iron a control button (82) for a switch (70, 72) with a position for a higher and with a position for a low voltage and that the control button and the switch be operated by the movement of the handle so that the switch is automatically in the position for higher tension is brought when the handle is moved to the packaging position. 2. Iron according to claim 1, characterized in that the switch via the control button 82 can be operated by hand and brought into a position for low voltage, when the handle is in the bow position. 3. Iron according to claim 1, characterized in that the iron has two heating elements (48, 46), which are connected in series, and the switch (70, 72) in its closed position, the second heating element (46) is bypassed by a shunt and short-circuits (connection for low voltage). 4. Iron according to claim 3, characterized in that the resistances of the two heating elements are dimensioned such that they have the same watt consumption in both connection positions at the respective connection voltage provided for this purpose, the dimensioning of the resistors R ₁ and R _{2 of} the two heating elements approximately according to the relationship is determined wherein V ₁ and F ₂ the
tensions mean. assigned interface Considered publications:
German utility model No. 1 770 273. 1 sheet of drawings 809 560/404 6.68 © Bundesdruckerei Berlin