DE1959910U - SAFETY INTERLOCK FOR LOADING DOORS OF ELECTRIC HOUSEHOLD APPLIANCES. - Google Patents

Description

RA. 083127 * 14.2.6? ^,

OONSTRUOTA-WERK GMBH Munich, the

Oskar von Miller Ring

PVA 65/5524

Safety lock for loading doors electrical household appliances

The "innovation" relates to a safety lock for BescMokung doors of electrical household appliances, e.g. washing machines or Dishwashers, with one that can be displaced by a hand lever Plunger for triggering a spring-loaded pawl arranged on the stationary housing part and a switch that the power supply to the device is automatically interrupted when the lock is released.

With such safety interlocks, the switch is at When the loading door is closed, it is held in the closed position by the spring pressure of the pawl. For safety reasons It is important that the "power supply to the device" is already available release the lock is interrupted and with the door open remains interrupted *

■ · ■. _ 1 - ■ Ser / St

•. ■ 6.4.1965

ft '

PVA 65/5524

According to the innovation, this is achieved in that the actuator of the switch on the opposite of the pawl
Side of the longitudinally displaceable plunger is arranged. The plunger is advantageously actuated by a hand lever which is designed as an angle lever and is coupled to a second angle lever acting on the plunger.

In order to avoid damage to the switch due to stroke differences in the plunger, the plunger must be counteracted in the area of the switch
associated with the action of a spring displaceable in the axial direction, which is supported on the actuator of the switch, and whose spring.lastic path is chosen so that a 'B es oil ad igung of the switch is excluded. :

The plunger and the angle lever interacting with it are useful coupled by a cross bolt which is guided in an elongated hole in the plunger and which engages in the forked arm of the lever. '

To return the hand lever to the starting position is a a return spring assigned to the two angle levers.

This ensures that the power is interrupted even when the door is open is, there is another one in the area of the hinge of the loading door The power supply interrupting switch is provided, which is operated depending on the angular position of the loading door.

65/5524

Due to the fteüerungsge.mäß -, training of the interlock, the Interruption of the power supply when opening the loading door ensured .., ·

In the drawing, an embodiment is one with a innovation.sgemä'ß "> equipped safety interlock Loading door shown schematically in section.

The double-walled loading door 1 is pivotably mounted on the housing 3 of an electrical household appliance by means of a hinge. A resilient pawl 4 is arranged on the stationary housing 3, which can also be designed, for example, in the form of a spring-loaded pawl © or §in§r ball lock '. which is mounted in the loading door 1 so as to be longitudinally displaceable and which, with its end opposite the locking pawl 4, presses on a switch 7 which interrupts the power supply of the device. To compensate for stroke differences, a so-called overstroke is provided in the area of the end of the plunger near the switch, which consists of a projection 8 which is spring-loaded in the axial direction of the plunger and which is supported on the actuating member 9 of the switch 7. On the front side of the loading door 1 there is arranged an actuating handle 10 which has a recess 12 which receives the hand lever 11 and which is shaped so that the hand lever 11 is concealed from view. The pivotably mounted hand lever 11, designed as an angle lever, acts with a second angle lever. 13 together, the free end of which is forked. The forked end of the Winkelhebeis 13 comprises a cross bolt ■ ■. ■ ■; ■ -. ·. ■ :: ■. - 3 - ■ '- ■■■■ · ■.'' ^: . ■■ - .. ■

. ■ * · - .. - PVA 65/5524

■ 14, which is guided in an elongated hole 15 of the plunger 6. To the Returning the hand lever 11 to the starting position is the angle lever 13 a return spring 16 is assigned.

To release the lock, the swiveling movement of the hand lever 11 transferred to the tappet 6 via the angle lever 13, which lifts the pawl 14 and thus unlocks the loading door. At the same time, the pressure on the actuator of the switch 7 is reduced, so that this the power supply interrupts to the device. The return movement of the angle lever 13 when the hand lever 11 is released is through the elongated hole 15 balanced in the plunger 6. So that an unintentional lifting of the power interruption is also excluded when the door is open, a further switch is located in the area of the door hinge 2 17 arranged, depending on the angular position of the loading door interrupts the power supply to the device.

6 iSchüt.zanspr, .uch.e

1 figure

Claims (6)

P.Ä.0S3127 * R2. PVA-65/5524 Protection Claims 1. Safety interlock for loading doors electrical Household appliances, e.g. washing machines or dishwashers, with a slide, which can be displaced by a hand lever, for triggering a spring-loaded plunger arranged on the stationary housing part Pawl and a switch that automatically powers the device when the lock is released interrupts, characterized in that the actuator of the switch .on the opposite of the pawl Side of the longitudinally displaceable ram 'is arranged. 2. Safety lock according to claim 1, characterized in that that the hand lever designed as an angle lever and with coupled to a zviieiten angle lever acting on the ram is. '. -. '■ .. 3. Safety lock according to claim 1 and 2, characterized in that that the plunger has an approach that can be displaced in the axial direction against the action of a spring, which is supported on the actuator of the switch. 4. Safety lock according to claim 1 to 3, characterized in that that the plunger and. the one who cooperates with him Angle levers are coupled by a cross bolt which is guided in an elongated hole in the plunger and which is in the forked arm. of the lever engages. -. FVA 65/5524 5. Safety lock according to claim 1 to 4, characterized in that that one of the two angle levers has a back • is assigned to the control spring. 6. Safety lock according to claim 1 to 5 * marked by another, depending on the angle operation of the loading door, the power supply at ge, Ä £ f.neter Door breaking switch.