DE344411C - Handle for hair drying devices - Google Patents

Description

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GERMAN EMPIRE

ISSUED ON NOVEMBER 22, 1921

REICH PATENT OFFICE

PATENT LETTERING

CLASS 33 c GROUP 6

Apparatebau A.-G. Kracker & Co. in Nuremberg.

Handle for hair drying devices.
Patented in the German Empire on November 30, 1920.

;. The invention relates to a handle for Hair drying devices and consists in the fact that on the inside of a handle that rotates

Ring at different heights start-up

5. -cams are attached, which are insulated from each other, 'slidable, under spring action standing contact pieces can act, depending on the setting of the rotatable ring either cause an interruption of the current or

ίο the current only through the electric motor or let it run through the electric motor and heating coil.

The drawing illustrates an embodiment of the subject matter of the invention in three

various settings, namely Fig. I is a partial longitudinal section through the

- Subject of the invention when the current is completely switched off, Fig '. 2 is a cross-section along line AB of Fig. 1. Fig. 3 shows a partial longitudinal section with so-called cold switching, ie switching on only the fan while the heating coil is de-energized ^ Fig. 4 is an associated cross-section along line CD. Fig. 5 is a longitudinal section with warm switching, ie current passage through the fan and heating coil, so that the fan delivers heated air, Fig. 6 is an associated cross-section along line EF. Figures 7 and 8 show, in elevation and cross-section, respectively, a detail on a smaller scale.

On which the power supply line 1 and the return line 2 containing the hollow handle 3 is a roughened ring 4 rotatably arranged against unwanted longitudinal displacement on the one hand through a recess in the handle 3 and on the other hand through one attached to the handle Ring 5 is secured.

Inside the handle is by means of a

Screw 6 a contact body 7 attached, the two superimposed under the action of springs 8 standing displaceable contact pins 9 contains. "The pins 9 and .Federn 8 The receiving bores are closed on the outside by screws 10 or the like.

Opposite the two contact pins 9, two contact pieces 12, 13 separated from one another by an insulation 11 are arranged displaceably, each of which has an outwardly protruding pin 14 or 14 'made of insulating material, e.g. B. hard rubber o. The like., Carries. Compression springs 15, 16, which are supported on approaches of the contact piece 7 or the contact pieces 12 and 13 covered by insulating caps 17 or iS, secure the latter in their position and cause their return to the initial position when the contact is made by corresponding rotation of the ring 4 is interrupted.
To move the contacts 12, 13, 4 stop cams 19 and 20 are provided on the inside of the rotatable ring.

In the illustrated embodiment, j two cams 19 and 20 are provided, which in act in the same way, so that a sixth of a turn of the ring to change the circuit is sufficient.

So that the ring 4 is always only the one required for the transition from one switching position to the other Receives partial rotation, a locking spring 21 is attached to the clamp 5, which snaps into one of the notches 22 provided on the ring 4 (Figs. 6 and 7). :

The mode of action is as follows: '

In the rest position shown in Fig. 1 and 2, in which neither by the schematically indicated heating coil 23 through the wire leading to the fan motor 24 25 current flows, the ring 4 is so that none of its cams 19, 20 on the hard rubber pins 14 or 14 'of the contact pieces 12 or 13 presses. The current fed through the wire 1 and the contact piece 13 is therefore interrupted because, on the one hand, the insulation 11 prevents its transition to the contact piece 12 and on the other hand, a space between the contact piece 13 and the contact pin 9 is present.

If the ring 4 is indicated in Fig. 2

Direction of the arrow rotated by a sixth of a turn, the lower cam 20 grips under the pin 14 '.

(Fig. 3) and. moves the contact piece 13 inward, so that the current supplied by the wire 1 through 13 to the lower Contact pin 9 and further through the contact piece 7 containing the latter, the wire 26 and line 25 goes to motor 24 to return through return line 2 to the power source. With this circuit, the fan runs alone and delivers cold air.

If the ring 4 is rotated by a further step, the upper cam 19 also moves under the associated hard rubber pin 14 of the upper contact piece 12 (Fig. 5), so that now both contact pieces 12 and 13 are pushed inwards and with 7 contact the cams 19 and 20 overlap somewhat and the cam 20 also after the second Sixth of a turn acts even further on the pin 14 '. The result is the following circuit. The current supplied by the wire 1 goes through the contact piece 13 and the contact pin 9 the body 7 and then branches out in such a way that the one part over the upper contact pin 9 to the contact piece 12 and from there through the wire 1 'to the heating coil 23 while the. other part, as before, goes to the fan motor 24 to go through the line 25 and the Return line 2, as well as the first branch, to go back to the power source. At this The circuit thus supplies the device with warm air.

Claims (2)

Patent Claims: 1. Handle for hair drying devices, characterized in that on the inside of a on the handle (3) rotatable ring (4) are attached at different heights start-up cams (19, 20), which on isolated, displaceable, spring-action contact pieces ( 12, 15) can act in such a way that, depending on the setting of the rotatable ring (4), either an interruption of the current takes place or the current only runs through the electric motor (24) or through the electric motor (24) and heating coil (23). ' ^: 2. Handle for hair drying devices.: According to claim 1, characterized in that that on the on the handle (3) rotatable ring (4) two in the same sense on the slidable Sets of the starting cams at different heights that act on contacts (19, 20) are attached so that a sixth of a turn of the ring (4) to change the circuit is sufficient, the ring by a snap-in notch (22) The locking spring (21) is secured in its six setting positions. For this purpose ι sheet of drawings.