DE6935692U - WASHING MACHINE OD. DGL. WITH DEVICE FOR CLOSING AND LOCKING A DOOR. - Google Patents

Description

HÖGER - LEGAL RIGHT-GRIESSBACH - HAECKER

PATENT LAWYERS IN STUTTGART

A 37 661 h

August 27, 1969

It. Log. 39682-A / 68

Texas Instruments Incorporated, Dallas, Texas, U.S.A.

Washing machine or the like with a device for closing and locking a door

The invention relates to a washing machine or the like. with device for closing and locking a door with a

for closing the door serving door member, which can be locked in the closed position by a locking device and through a locking device is lockable.

In washing machines, it is used to prevent the door from opening during dangerous work processes, for example when spinning and heating, it is common to provide devices, which cooperate with the closing devices of the door so as to prevent this door from opening during the aforementioned washing phases.

The fastening devices generally have a hooked door lever which is fastened to the door and which, under the action of a spring, engages a retaining plate which is fastened to a fixed part of the washing machine. If a locking device is arranged on the V, ^r ash machine, so this is energized when a predetermined current flows or a corresponding voltage is present, and moves out a tooth that moves the door lever

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August 27, 1969

hinders. This means that this door can only be opened when this tooth has returned to its original position after a predetermined delay.

The invention is based on the task, a single one Device to create the εον / ohl securing the door as well as preventing the latter from being opened during predetermined ash phases, according to the invention this device can be manufactured economically and cheaply compared to previous devices. This task is achieved in the above-mentioned arrangement according to the invention in that a sliding member is provided, its Closing element can be moved into a detent of the door member under the action of a closing spring and is in the closed position can be locked by a locking tooth which has a heated by the electric current bimetal member is movable in the locking position.

Further features and advantages of the invention emerge from the following description in connection with the drawing, which includes an embodiment of the invention. In the drawing show:

Pig. 1 shows a cross section of the with the fixed part of the washing machine locked part,

Fig. 2 and 3 special embodiments of the delayed locking and release systems,

4 and 5 the device when closing the door and at locked door,

6 shows a schematic section through a washing machine, in which the novel device is mounted.

In a housing 1, the parts are housed according to FIG. 1, which the locking and unlocking of the door under delayed

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August 27, 1969

Effect of the device. These parts can for example be designed as shown in dan FIGS. With 2 and 3 are used to connect to the power source against each other by an insulating plate 16 insulating connecting pieces denotes, of which the first with a short-circuit strip 5 and one end of a resistor 6 within the housing and the second is connected to a bimetal strip 4. The other end of the «? Resistor 6 is connected to the bimetallic strip 4. When a voltage is applied to the two connecting pieces and a certain current flows between them, it is heated the resistance 6. This bends the bimetallic strip 4 and moves a locking tooth 7, which now over the housing 1 protrudes and can thereby engage in the opening of a sliding plate and prevent its movement.

After a certain bend of the bimetallic strip 4, it hits on the short-circuit strip 5, whereby a resistor 6 is bridged. If there is no more heating, it disconnects the bimetallic strip 4 from the short-circuit strip 5 and is then reheated when the heating is renewed, so that the same process occurs cyclically repeated and thus the tooth 6 constantly protrudes from the housing.

At the end of a certain washing phase, the entire washing cycle or in the event of a failure of the electrical voltage, the in bimetal strips accumulated heat released as a function of a certain mass of an electrically and heat-insulating insulating sleeve 9, so that results in a predetermined delay for the return of the locking tooth 7 to its starting position.

The housing 1 is mounted on a carrier plate 10, which carries the entire structural unit and on a fixed machine part 21 of the Washer can be attached.

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August 27, 1969

The sliding pad 8, which has a closing spring 12 in its rest position tries to hold, has a cooperating with the locking tooth 7 shoulder 15 and a locking pin 14, which cooperates with a door member 15 to form a door 11 to keep a washing machine in the closed position.

When the door 11 is about to close, an inclined edge 18 of the door member 15 takes the locking pin 14 with it, so that the sliding plate is moved in the direction of arrow A (see Pig. 4). When the door 11 is pivoted further in In the direction of arrow B, the end point 19 of the inclined edge 18 passes the locking pin 14, which is in the one detent 20 of the door member 15 occurs, so that now the door 11 is locked to the fixed part of the washing machine (see Fig. 5).

In order to open the door 11, it is only necessary to turn it into To pivot in the direction of arrow 0. The door member 15 pushes the sliding plate 8 through an inclined edge of the detent 20 in the direction of arrow A so that the door comes free and can be opened.

If, however, the locking tooth 7 protrudes from the housing 1 during predetermined V / ash phases, the sliding plate can move 8 do not move in the direction of arrow A, and the door. the washing machine cannot then be opened.

With the device described above, it is no longer necessary to initiate special operations to close or open the door, it is only necessary to do so close or open. In this way, the control system for the door is greatly simplified.

Claims (1)

Protection claims 1. Washing machine, od. The like. With device for closing and Locking a door with a door element which is used to close the door and which can be locked in the closed position by a locking device and locked by a locking device, characterized in that a sliding element (8) is provided, the closing of which ^a element (14) in a latch (20) of the door member (15) below the action of a closing spring (12) can be moved in and can be locked in the closed position by a locking tooth (7) is that heated by an electric current via a Bimetal member (4) can be moved in the locking position. * Washing machine 2. according to claim 1, characterized in that the Sliding member is a sliding plate (8) which has a locking edge (13) with which the locking tooth (7) together env / irkt.
Wasc 'machine 3. according to claim 2, characterized in that the Sliding plate (8) at one end carries the locking element, for example a locking pin (%), and at the other end the locking edge (13), for example as part of it a recess. Washing machine 4. according to one of the preceding claims, characterized characterized in that the locking tooth (7) with the bimetal member (4), for example its free end ", firmly is connected and so moves with it. Washing machine 5. according to one of the preceding claims, characterized characterized in that the bimetal member (4) by a a voltage at the connectable Y / resistor (6) can be heated. . Washing machine . 6. according to Anrprrch ^, characterized ^ indicates that the ; ^{! i} "'t'! ii. £; lic, (') on cir: fri part, especially a SW— J ₁ · Rr r e · r · β «·« »tu ··» · Iff «■ '· ft > 1 Il I A 37 661 h - 6 - I 'h-24 August 26, 1969 |. . middle part, from an electrically and thermally insulating * Insulating sleeve (9) is surrounded on which the resistor (6) j is arranged. s _n washing machine ,, λ. ra * ι -. · Ι. α. a «λ I 7 · according to claim 6, characterized in that the i <resistance is a resistance wire (6), which around the insulating I cover (9) is wrapped around it. ί washing machine 8. according to one of the preceding claims, characterized I marked that a short-circuit element (5) is provided, 1 with a corresponding bend of the bimetal member (4) the I resistor (6) and preferably also the bimetal element (4) I shorts. ι washing machine I -9 · according to one of the preceding claims, characterized I; characterized in that the bimetal member is a bimetal strip I (4) and possibly also the short-circuit element is a short-circuit \ ^ lussstrip (5) is self-supporting with its one Ends are attached to a first connector (2). Washing machine 10. according to one of the preceding claims, characterized characterized in that one end of the resistor (6) on a second connecting piece (3) and the other end on the bimetal member (4) electrically conductive "is attached. Washing machine 11. according to one of the preceding claims, characterized characterized in that the door member, for example a door lever (15) j has two control chews (18, I9) with the Closing element (14) for moving the same into a detent (20) of the door member (15) in and out of it. Washing machine 12. according to one of the preceding claims, characterized : characterized in that a carrier plate (1O) is provided, on which the sliding member (8) can be moved back and forth. Washing machine 13. according to claim 12, characterized in that the closing spring (12) is arranged on the carrier plate (1O) - 7 - A 37 661 h - 7 - August 26, 1969 is that in a · recess dec sliding member (8) and engages the carrier plate (10). Washing machine 14 · according to one of claims 12 or 13 »thereby characterized in that on the support plate (10) a housing (1) is angeoidnet, which the bimetallic member (4) and the Short-circuit member (5) encloses and carries the connecting pieces (2, 3). Washing machine 15 · according to ^one of claims _{12-14 S,} characterized in that the door member (15) is attached to the door (11) of a work machine and the support plate (10) a: <: frame (21) of this work machine.