DE6805821U - TIME SWITCH FOR THE TIMING OF THE FUNCTIONS OF APPLIANCES, IN PARTICULAR COOKING STOVES. - Google Patents

Description

Very no. Gbm 76
Ho./La.

Company D I E II L, Nuremberg, Stephanstrasse

Time switch for timing the functions of Appliances, in particular cooking stoves.

The innovation relates to a timer for timing the functions of equipment, in particular cookers, with adjustment to adjust the cooking time end of the cooking time, a Kurzzcitintcrvalls, as well as the time, with display devices for the top three · ^A -nannten setting, with a planetary gear for Calculation and setting of the start of the cooking time from the preset end of cooking time and the cooking duration, with a drive for the timer, which at the same time also supplies the energy for the mechanical.

Such a timer for use in cooking stoves is already known. It has a total of 3 actuation axes for setting the time of a timer, the cooking duration and a short time, with the actuation axis for the time also carrying a hollow axis for setting the end of the cooking time. To visualize the settings ■ -> n Cooking time end, cooking duration and the minute minder · ■ : i: \ ■ '. a total of 3 display devices provided. The essential feature

ij

this timer is a planetary gear, through which j.j after setting the end of the cooking time and the cooking duration

Ii active the beginning of the cooking time in the university * is set,

If so that the operator does not need to be time-consuming! Must make calculations in this regard. ; This timer has because of the presence of three

including adjacent actuating axes ι the associated display devices quite a bit

; Raura requirement.

j ·.

It is now the task of the innovation to

I? timer in such a way that one in height

: * and width much smaller clock emerges that functions

and display options of the known time switch, however, in

to be preserved in full.

This object is achieved according to the invention in that a timer is attached to the front panel in a manner known per se is that a first actuating axis for setting the end of the cooking time and on this a hollow axis for Linteil ing a short time interval, as well as that a second actuation axis for setting the time and on this a hollow ,, axis for setting the cooking time are provided so that far-

',. towards the first actuation axis with the display device for

Γ the end of the cooking time, the one arranged on this actuation axis

j Hollow axle with the display device for dit Hurz / eit and die

j hollow axis on the second actuation axis with the display voi-

! -: direction for the cooking time mechanically connected or coupled

jS are.

Ij

i According to the innovation, the number of actuation axes

t decreased; this measure is a decisive

ϊ: Reduction of the known time switch possible, namely through

the new arrangement of the axes is the same as that behind the

680582t

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Gears arranged on the front panel of the timer can be squeezed together considerably.

This makes the timer even smaller possible that the display device for the end of cooking time axis consists of a setting pointer, which by means of a Hollow axis is arranged on the axis of the clock. It is thus no display device claiming a separate seat more necessary for the co-cloning. The display device 9? Ür Cooking duration and short-term each consist of an indicator disc with corresponding digits, the Partly visible behind a window in the front panel are. These display devices are just like the Einste] T pointer for the end of the cooking time via gears with the Beta ..giMigsachsen or the hollow axles arranged on them coupled.

The indicator disks are a further development of the innovation for cooking duration and short-term also coupled with the drive for the timer, so that the slices with the process the set time against your lens part dreliri chtun: run, so that the time still available is shown.

The innovation is also det in the V.'eise further ausgcbi ^Ί that the first actuation axis (Kochzei tends) via Geti-i ebemi TTCl of meshing with the sun in and of itself known planetary transmission in conjunction that the hollow axle on dor second actuating Sachs '; (Cooking duration) is coupled to the outer edge of this planetary gear, and that the planetary gear is connected to coupling means which actuate an electrical switch for the power supply at the beginning of the cooking time, and connect the planetary gear to the drive for the timer. The outer wheel of the planetary gear acts with a

Switch lever together, which at the end of the cooking time, the a defined position of this outer wheel is assigned - an electrical switch for the power supply actuated, and also separates the planetary gear from the drive for the timer via the coupling means.

According to a further development of the innovation, the coupling means contain an axially displaceable coupling disc in which a hole or a groove is provided, as well as a coupling claw connected to the planetary gear, the latter in the When the clutch is switched on, it interacts with the hole or the groove of the clutch disc in a form-fitting manner.

Finally, in a further development of the innovation, there is also a brake between the sun gear of the planetary gear and the first one

Actuating axis arranged, which eir- such a braking torque has that on the one hand the drive energy of the drive for the timer is insufficient to rotate the sun gear u, d? ß on the other hand, however, it is easily possible to set the end of the cooking time via the first actuation axis,

In the following, the innovation will be explained in more detail with reference to the drawing using an exemplary embodiment.

Show it:

Fig. 1 is a front view of the timer according to the invention;

2 shows a schematic representation to explain the mode of operation of the time switch;

Fig. 3 is a side section through the timer, where ¹ ; ei. the gear for the short-term setting is omitted;

Fig. K e ^H η lateral section in the same view, but only the gear for setting the short-term is shown;

Fig. 5 shows an Ansicl ¹ 'of the transmission according to. 4 from above.

In FIG. 1, the dial of the time clock arranged on a front plate F is denoted by 1, the hour hand by 2, the minute hand by 3 and the second hand by k . A pointer 5 is used to set the end of the cooking time. The functions of the timer are operated by a total of k rotary knobs, which are arranged on two double axes. A rotary knob 6 is used to set the end of the cooking time with simultaneous movement of the setting pointer. A rotary knob 7 is used to set a timer which emits an alarm signal after the set time has elapsed. A rotary knob 8 is used to set the clock hands 2 and 3 in a known manner. Finally, a fourth rotary knob 9 is used to set the intended cooking time for the food to be cooked. Two display devices 10 and 11 are used to display the short-term and cooking duration, which contain display disks carrying digits, sections of which are visible ^{behind a window 10 'and Ii f of the front panel F.} The display discs are arranged in such a way that the part of the set time that is still available is displayed.

Using the schematic representation of FIG. 2, the operation of the timer according to the invention will now be explained. A clutch disc rotating synchronously with the hour wheel 2 of the time clock is denoted by 20 and has a hole 21. Simultaneously with the rotation of the setting lever 5 for the end of the cooking time, a coupling claw 22 is rotated to the same extent via a differential. The cooking time is set via the arsenic gear 23 of a planetary gear, the outer gear being rotated in the direction of arrow 2k . A cam switch 25, which cooperates with a groove 26 arranged on the circumference of the outer wheel 23, is used to control the electrical functions of the cooker. The one on the outer wheel

The attached numerical division is only in this figure applied for ease of explanation.

The operation of the timer is now briefly explained below for a freely selected example. Suppose 1 | that ^ Pi of the time shown in Fig. 1 of 1.6.48 o'clock

fs an operation is performed, the end of the cooking time

||| at 7 p.m. and the cooking time should be 1 hour.

, i! With the setting button 6, the setting pointer 5 and with it

I! the coupling claw 22 is set to the time 19 o'clock

Ii (position 22 in Figure 2). Now the outer gear 23 is through

!, If turn the setting button 9 in the direction of the arrow 2h by one hour

h represents, ie the number ^x on the outer wheel 23 takes the position

where the number 12 was previously located. By

|| this rotation is the said differential

if coupling claw 22 from position 22 'to a corresponding one

Angle turned back (position 22 '') and now shows the Start of cooking time. As a result of the rotation of the outer wheel 23, the release lever 25 was also lifted out of the groove 26.

As the time progresses, the clutch disc with hole 21 moves clockwise and finally reaches the time 6 o'clock. Now the coupling claw 22 '' in position 22 '' falls into the hole 21 and is positively entrained by the coupling disc 20. When the coupling claw 2 '' falls into the hole 21, the power supply to the stove is switched on at the same time the coupling claw 22 is rotated via the mentioned differential at the same time the outer wheel 23 against the direction of arrow 2k until finally the point in time is 7:00 pm At this point in time the release lever 25 falls back into the groove 26 and switches off the power supply for the stove. In addition, the coupling claw 22 is lifted out again ai -em hole 21.

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The mechanical structure of the timer will now be explained in more detail with reference to FIG. The axes on which the rotary knobs 6 to 9 already explained in FIG. 1 are arranged are denoted by 6 'to 9'. The other, already explained in Figures 1 ^-1 2 .ND components are provided in Figure 3 with the same reference numerals. L * er gear train for setting the short time via the axis 7 'with a gear 30 is omitted in Figure 3 for the sake of clarity and shown separately in Figure h.

A gear 31 which meshes with a gear 32 is arranged on the axis 6 ′. On the axis 33 of this gear, which is designed as a hollow axis and is arranged on the axis of the clock hands 2, 3j k , the setting pointer 5 for the end of the cooking time is attached. Furthermore, a brake disk 35 provided with a friction lining is pressed onto the gear wheel 32 by means of two springs lh supported on the front plate F. This brake disc exerts such a braking torque on the gearwheel 7 2 and thus on the setting pointer 5 that, although the setting pointer is rotated by hand via the axis 6 ^! is given, on the other hand, a rotation caused by the drive of the timer is not ch.

Finally, a toothed wheel 36, which is fastened on the main axis 37 of the planetary gear, meshes with the gear wheel 32. This planetary gear consists of the above-mentioned external gear 23, which is loosely mounted on the 1st axle 37 and has internal and external toothing, a sun gear 38 attached to the axle 37 and a planet gear running between the sun gear 38 and the internal teeth of the external gear 23 39 · This is rotatably mounted on a disc ^ O, which in turn is freely rotatable on the axis 37. Finally, the aforementioned coupling claw 22 is also attached to this disk kO.

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The aforementioned clutch disc 20 with the hole 21 is also mounted axially displaceably on the axis 37. This clutch disc 20 receives its drive via a gear 41 which is coupled to the drive for the timer. The clutch disc 20 is pressed against the force of a spring 43 against the clutch claw 22 by a lever hc with a force 42 ′.

About the axis 8 ^f is in Veise not shown about; a gear hk made the setting of the clock hands 2 and 3. Finally, a gear 45 is arranged on the axis 9 ', which meshes on the one hand with the display disc 11 for the cooking time, which is partially visible through a window 11' in the front panel F, and on the other with the external toothing of the external gear 23 of the planetary gear.

Due to the general explanation of the operation of the timer on the basis of FIG. 2, the mode of operation is c ″ arrangement according to Figure 3 readily understandable. By rotation the axis 6 'is via the gear 31 and the gear 32 of the Setting pointer 5 for the end of the cooking time adjusted. At the same time, the sun gear 38 is rotated via the gear 36 and that the latter causes the planet gear 39 to roll on the internal teeth of the outer gear 23 of the planetary gear. But this is the disk 40 on which the planetary gear is stored, and thus also cM r coupling claw 22, in a corresponding Dimensions twisted. Ej is in accordance with the above illustrated example of operation provided that the Xupplungsklaue do not fall into the hole 21 of the clutch wheel 20 can. Now, by rotating the axis 9 ', the Setting of the cooking time made. As a result of this rotation, not only the display disc 11 is rotated via the gear 45 but at the same time via the external gearing Outer gear 23 of the planetary gear. In addition, the release lever 25 (not visible in FIG. 2) is lifted out of a groove 26 (FIG. 2) and the coupling is opened for the later coupling process. The rotation of the outer gear 23 is about

j whose internal toothing also sets the planetary gear 39 in rotation and rolls on the internal toothing. In order to ensure i de- adjusting movement of the shaft 9 'about the outer wheel 23 ⁷ l vo v.irkt to the planetary gear 39, is a prerequisite that the sun gear 38 is fixedly-braked. This is effected via the brake disk 35 and the gears 32 and 36. Outer gear 23 rotates the planet gear in the opposite direction as when setting the end of the cooking time, and thus disc 40 with coupling claw 22 is rotated back a little according to the set cooking time.

As already mentioned, the drive for the timer also drives the gearwheel 41 at the same time and causes this a rotation of the Kunpiungarad 20 synchronous with the running Time. As soon as the coupling: lukewarm 22 and hole £ 1 are opposite each other, The clutch wheel 20 is shifted under the pressure of the release lever 42 against the spring pressure 43 and now takes its further rotation of the coupling claw 22 and thus the disk 40 form fitting with. The planetary wheel rolls due to the movement the ^ disk 40 back on the internal teeth of the outer wheel 23 / -, the sun gear 38 remains locked - and now also rotates the indicator disc via the outer gear 23 and the gear 45 11 back. When the cooking time is finally over, the release lever 25 falls into the groove 26 on the outer wheel 23 (FIG. 2) and at the same time causes the lever 42 to pivot back and the force in the direction of arrow 42 'is canceled. The clutch wheel is thereby axially displaced under the spring pressure 43 and is again outside the engagement of the coupling claw 22 in its end position.

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^! Based on the figures k and 5, the setting should now be

a short-term interval are explained. With the gear 30 attached to the hollow axle 7 ¹ , the display disc 10 provided with numbers would mesh, which is visible to the outside through a window 10 'in the front panel F. On the axis ■
H 50 of this indicator disc are a gear 51 and a

: ■ Cam disk 52 attached. The gear 51 meshes with one

Ii gear 53, which is rotatably mounted on an axis 5 ^ irei

Ji is. This gear 53 acts via a clutch facing 55

with a disk 56 fastened on the axis 5 ^.

A | serves to generate the necessary contact pressure

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j || Spring 57, which is arranged concentrically to the axis 5 ^

and is supported against a disk 58 fastened on this axis. With a groove 59 in the cam 52 j finally one affects a nose 6l 'about an axis <"> G swiveling \ lever 6l together, which under the effect of in Pfeilii |.. An is direction 62 attacking force the free Lnde of

Finally, a clapper 63 is attached to lever 6l, which cooperates with a bell 6k .

The gear wheel 51 has no gearing in the area between the teeth 51 * and 51 * 'in order to decouple the timer from the axis Z ^l i --u driven by the drive for the timer, if no timer is set. The clutch on the

\\ Axis 5 ¹ * is ultimately used to enable a short time to be set via axis 7 'without damaging the drive that is simultaneously running in the opposite direction of rotation.

The setting of a short time is now done in such a way that the axis 7 'and thus via the gear 30 also the display disc 10 is rotated to a corresponding extent. At the same time, a corresponding rotation of the gear 51 also takes place as well as the cam disk 52. Through this rotation, the lever Jl 6l with its nose 6l 'us of the groove 59 of the cam disk 52 is produced.

Jl excavated as well as the toothing of the gear 51

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rait the gear 53 engaged. If the axis 7 'is now released, the drive of the timer via the gear 53 causes the gear 51 »of the cam disk 52 and the indicator disk 10 to rotate in the opposite direction to the setting direction of rotation , at the same time the nose of the lever 6l falls into the groove 59 and the knob 65 strikes against the bell 6k.

Venr.gleich a bell Ck nd mentioned in the explanation of the short diameter of a clapper 63 "was, it goes without saying, dan by the movement of the lever Cl also, for example, an electrical switches are operated crane, which is an I ^w utwerk or puts a Sunnier into operation for a predetermined time.

Claims (2)

Rope requirements: 1. Time switch for timing the functions of | s devices, such as cookers in particular, with adjustment means k for setting the end of the cooking time, one 4 short-term intervals as well as the time, with display devices i | for the first three adjustment means, with one Il, planetary gear for calculating and setting the cooking Ί; start of time from the preset end of cooking time and the ί Cooking time, with a drive for the timer, which ¹ Ii also provides the energy for the mechanical switching Γ processes, as well as with electrical switching means for j ¹ '' control of the functions of the device, characterized in - 'That on the front panel (F) in a known manner 5 clock is attached that a first operating axis ii · (6 ¹ ) for setting this cooking time end and on this one pj hollow axle (7 ¹ ) for setting a short-term interval as well ? that a second operating axis (8 ^f ) for setting the for the time and on this a hollow axle (9 ') for setting || the cooking time are provided that the first loading '■ actuation axis (6 ¹ ) with the display device (5) for the ; ^; End of cooking time, the one arranged on this actuation axis ; ■! ' Hollow axle (7 ^T ) with the display device (lO) for the ¹ short-term and the hollow axle (9 ') on the second actuation I axis (8 ^f ) with the display device (ll) for the cooking time ^{1 are} mechanically connected or coupled. : 2. Time switch according to claim 1, characterized in that the display device for the end of cooking time from a one cell Pointer (5) which is arranged on the axis of the timer by means of a hollow axis (33) ./ 3 · Time switch according to claim 1, characterized in that ; the display devices (11 or 10) for the cooking time and the short-term consists of a / -jescheibe with corresponding numbers, rti <jewels ^{are visible in sections behind a window (11 1} or 10 ') of the front panel. k. Time switch according to claims 1 to 3 _; characterized in that the display devices (11, 10 ') are coupled to the Beta. iguo .. isaxes or the hollow axles (6 ^!, 7 ^{1, Q') arranged thereon via toothed wheels.} 5. Time switch according to claim 3 _S, characterized in that the Am.eigescheiben (ll, 10) for Koelidauer and short-term are also coupled to the drive for the timer, so that the discs with the expiry of the set time opposite to their setting direction of rotation run so that the time still available is displayed. 6. Time switch according to one or more of claims 1 to 5, characterized in that the display devices (ll, 10) for cooking duration and short-term in the immediate vicinity of the actuating ^{axes (6 f} 8 ') are arranged. 7. Time switch according to one or more of claims 1 to 6, characterized in that the actuating axes C6 ', 8') as well as the hollow axes (7 '9') are all designed as axes of rotation are. 8. Time switch according to claim 1, characterized in that the first actuation axis (cooking time end) (6 ^T ) via gear means (31, 32, "6) with the sun gear (38) of the planetary gear known per se is in connection that the Hollow axle (9 ¹ ) is coupled to the outer gear (23) of this planetary gear on the second actuation axle (Kooh duration) (8 '), and that the planet gear (39) is connected to coupling means (40, 22, 21 _and 20), which operate an electrical switch for the power supply at the beginning of the cooking time, as well as connect the planetary gear with the drive for the timer. 9. Time switch according to claim 8, characterized in that the outer wheel (23) of the planetary gear cooperates with a Auslösehebcl (25) which at the bark of the cooking time - a defined position of this outer wheel is assigned - actuates an electrical switch for the power supply, as well also separates the planetary gear from the drive for the timer via the coupling means (HO, 22, 21, 20). 10. Time switch according to claims 8 and 9, characterized thereby ■: ■: '. t that the ■ coupling means an axially displaceable Clutch disc (20), in which a hole (21) or a groove is provided, as well as one with the planar wheel (39) have connected coupling claw (22), which latter in the case of Jlinschr.l device of the coupling with the hole or dor groove of the clutch disc interacts positively. 11. Time switch according to claim 9, characterized in that the outer wheel (23) of the Plnnetenge tri obes a groove (2 ^>) on their. Scope wears before the release button (25) occurs if the cooking time is not set. 1 ". Time switch according to claim 3, characterized in that a brake (53>3'i, 32) is arranged between the sun gear (38) of the Planctenge drive and the first actuation axis (6 ') which has such a braking torque that, on the one hand, the drive energy of the drive for the timer is not sufficient to turn the sun gear, but on the other hand, it is easily possible to set the end of the cooking time via the first actuation axis. 680582t