KR960002302B1 - Household appliance fastening device particularly for a washing machine - Google Patents

Abstract

No content.

Description

Door locks for household appliances

1 is a perspective view of a front loading washing machine characterized by a door lock according to the present invention.

2 and 3 are enlarged cross-sectional views of FIG. 1 in two different operating states.

4 and 5 are cross-sectional views taken along line VII-VII of FIG. 2 in two different operating states.

* Explanation of symbols for main parts of the drawings

2: body 3: opening

4 door 11 fixed support element

12: locking means 13: elastic means

18: means for holding

The present invention relates to a door locking device for a loading / unloading door of a washing machine, which can pass through a door locking device of a household appliance, in particular a drum freely supported inside the machine body.

Currently, fasteners used in doors for washing machines are known to be partly attached to the door and partly to the body of the machine, through which openings are formed which allow the drum to pass through, which is kept airtight by the door. Closed in the closed state. Such a device consists essentially of locks operated by a handle attached to the door.

Locks of the type described above present a number of drawbacks, with the configuration of the components (doors and bodies), locks, and parts that are sometimes attached to different parts of the door hinges to be adjusted after assembly.

In addition, such a device is not intended to be equipped with a stabilizer that prevents the door from being accidentally opened while the machine is in operation, which is a barrier to design, high in production, and always lacking in reliability.

It is an object of the present invention to provide a door lock for a household appliance, in particular a door lock for a washing machine door, designed to solve the above-mentioned drawbacks, and to provide a household appliance with a particularly robust and trouble-free attachment.

According to the present invention, there is provided a door locking device for a domestic appliance, comprising lock means cooperating around the door and the periphery to block the opening configured through the appliance body, and comprising a single unit attached only to the appliance body. Wherein the device comprises a fixed support element integrally attached to the door integrally with the body, the locking means being pivotally supported on the support element with respect to the action of the first elastic means and retractably clamping means. When the lock is pulled out, the locking means can pivot in the same direction as to unlock the door by the user.

Non-limiting embodiments of the present invention will be described with reference to the accompanying drawings.

In Figs. 1 to 5, reference numeral "1" is applied to a household appliance, in which case it represents a washing machine, the body 2 of which is blocked by the circular door 4 in an airtight opening ( 3)-for example via a known drum not shown. As shown, the opening 3 is fitted with a known peripheral seal 5 which cooperates with the door 4 in an airtight state, and is in contact with the body 2 when the door is closed. A circular protective ring 6 defining the sheet is formed in the opening 3. As shown in FIG. 1, on one side, in particular on the opposite side of the hinge 8, on which the door 4 pivots in the direction of the arrow on the body 2 with respect to the axis A, and protection for opening and closing the opening 3. Inside and outside the ring 6, the protection ring 6 has a groove 7 which encloses the locking device of the door 4.

According to the present invention, in the illustrated example, the finished product 10 is assembled with a single self supporting device attached to the inside of the groove 7 only in the body 2, and is adjacent to the door 4 and the body 2. A fixed support element 11 attached integrally with the; Locking means for securing the door 4 to the peripheral seal 5, denoted by " 12 ", and pivoting on the fixed support element 11 against the action of the elastic means 13; And a retractable pinch, labeled "18", which allows the locking means 12 to pivot outwards by the user in the same direction as the release door 4 when pulled out as shown in FIG. Means.

The fixed support element 11 is generally cup-shaped in the form of a parallelepiped from the outside, and the door 4 in which the lateral opening 20 is continuously formed up to the front opening 21 of the fixed support element 11. On the opposite side adjacent to), almost the whole is open. As shown in FIGS. 4 and 5, the fixed support element 11 has a shaft inside the seat 22 of a suitable shape until the integral outer flange 23 contacts the body 2 thereon. Of the body 2 by inserting the fixed support element in the direction (perpendicular to the plane of FIGS. 4 and 5) and sliding the fixed support element 11 into the seat 22 in the direction of the arrow in FIG. It is forcibly engaged inside the groove 7 so as to immediately insert the individual engaging projections 24 formed outward from the side wall of the fixed support element 11 under the flange 23 at the corners of the seat 22.

The locking means 12 is entirely supported on the stationary support element 11, and the stationary support element 11 by means of a pin 28 parallel to the surface on which the opening 20 of the stationary support element 11 is formed. A hollow box body 26 that pivots on an end wall 27 of the fixed support element 11, which is loosely contained, inwardly parallel to the hinge axis A of the door 4 and opposite to the axis B. Relative to the opening 20. A body 29 including a retractable clamping means 18 is vertically attached to the box body 26, and a support 30 pivoting about a pin 31 parallel to the pin 28 is engaged. The torsion spring 33 on the pin 32 causes the element 32 to squeeze inside the outer groove 34 formed on the corner of the door 4.

The body 29 and the support 30 may be formed integrally with the box 26, for example. As shown in FIG. 2, the engagement element 32 is generally held in position by the torsion spring 33 (shown in a continuous line) and the door 4 as will be described in more detail later. ) Is rotated to open and, in particular, the release position (shown in dashed lines) towards the opening 20 so that the engagement element 32 snaps into the outer groove 34 when the door 4 is closed. On the pin 31 between them.

In the illustrated embodiment, the resilient means 13 consists of a helical spring in which opposite end arms 36, which are respectively placed on the box 26 and the end wall 27, are wound around the pins 28. The 26 and support elements 29, 30, 32 interfere with the rotation towards the opening 20, i.e. the rotation into the third degree position, so that the box 26 and the support elements 29, 30, 32 is maintained in the second degree position.

The clamping means 18 which is elastically deformable is guided and slides in a state of being fitted to the body 29, and has a first end 39 protruding from the body 29 and integrally attached together with the handle 40. Empty tubular element 38; Located inside the tubular element 38 between the tubular element 38 and the end wall 42 of the body 29, protruding from the body 29 as much as the user can lift the handle 40- A compression spring 41 which is precompressed to push the tubular element 38 to the extracted position shown in FIG. 3; And push-push means for selectively securing the tubular element 38 in the extracted position in FIG. 3 or in the compression position shown in FIG. 2, wherein the handle 40 The silver 4 is brought into substantial contact with the door 4 when the door 4 is closed with respect to the opening 3 so that the entirety thereof is received in the body 29 except for the first end 39.

The pressing means comprises, for example, an elastic element 50 which is contained inside the axial through sheet 52 in the body 29 and engages with the positive track 51 formed on the outer surface of the tubular element 38. do.

According to another feature of the invention, the box 26 has a safety lock means attached therein for preventing the element integral with the base from turning in relation to the support element 11 when the mechanism 1 is operated. This prevents the door 5 from being accidentally opened, as described later.

According to the present invention, the space 60 inside the box 26 comprises a plurality of blades or bars 61, one of which is connected to the projection piece 62 in a flexible state, The projection piece generally penetrates through the box 26 and engages with the first hole 63 (FIG. 4), and in the second operating position (FIG. 5), it also penetrates through the side wall of the fixed support element 11. It is formed and engages with the second hole 64 corresponding to the first hole 63.

In the embodiment shown, the hole 64 is centered with the hole 63 when the box 26 is in the position of FIG. 2, and the flexible blade 61 is an axial groove in the projection piece 62. (65) It is coupled to the stone piece 62 by engaging with one end inside. The protrusion piece 62 is inserted between the heat-resistant expansion conductive element, for example, the blade 61 and another non-flexible blade or bar 61 between the two positions shown in FIGS. 4 and 5. It is moved by bending the blade 61, which is connected to the projection piece 62, by a known PCT 66, which is electrically provided by means electrically connected to the instrument 1. In the illustrated embodiment, the electrically connected means are included in the space 60 and are known in the art in a known manner in a number of fasteners which are connected in a known manner to the known wiring system on the instrument 1 via the opening 70. Faston) connector 68.

In the withdrawal position shown in FIG. 4, the projection piece 62 is only coupled to the hole 63 so that the box 26 is freed with respect to the fixed support element 11. In the pulled out position achieved by the element 66 which expands and deflects the blade 61 shown in FIG. 5, the protrusion piece 62 engages all of the holes 63 and 64 so as to be integral with each other. Make. Toward the door, the stationary support element 11 also acts with the door 4 when the door 4 is blocking the opening 3 (FIG. 2), and easily when the door and the locking means are released. It has an elastic element 72, for example a flat V-shaped spring, which exhibits a flexible pressure for opening the door (FIG. 3).

In practical use, the door 4 is closed by rotating the door on the hinge 8 toward the opening 3 until the door cooperates with the elastic element 72 and the seal 5 in front, and the outer groove (34) It is fixed by the engaging element 32 to be caught inside. When the door 4 is fixed, the tubular element 38 is in a hunched position with the handle 40 and the outer surface of the door 4 and the body 2 being folded together, thereby simultaneously making the compact lock 10 To provide a door (4) assembly. The door 4 opens simply by pressing the handle 40 in the direction of the arrow in FIG. 2 to release the pressing device, causing the spring 41 to push the tubular element 38 to the third degree position. . At this time, the protrusions of the handle 40 and the tubular 38 are gripped by the user, and are used as levers for rotating the box 26 to the third degree position with respect to the fixed support element 11. This releases the engaging element 32 from the outer groove 34, freeing the door 4, and due to the pushing force exerted on the door by the seal 5 and in particular the elastic element 72, opening 3. Rotation on the hinge 8 frees the opening 3 for loading or unloading the instrument 1.

The door 4 is closed again by rotating the door in the opposite direction before or after pressing the handle 40 to retract the tubular element 38 so that the door is secured inside the body 25.

While the instrument 1 is in operation, even if the handle 40 is pressed to pull out the tubular element 38, the door 4 cannot be opened in any way. This is accomplished by the PCT 66 which receives current for heating and expansion during operation of the machine and couples the pebble 62 to the hole 64. As a result, as long as the heat-resistant expansion conductive element 66 is kept hot, the box 26 does not rotate relative to the fixed support element 11, and the coupling element 32 is engaged inside the recess 34. It remains.

When the machine is turned off, the current supply to the PCT 66 is interrupted and the PCT is cooled, so that the dolphin 62 is released from the hole 64, and then the box 26 is released.

The advantages of the locking device according to the invention will be apparent from the foregoing description. In particular, the present invention effectively grasps that the design is simple, reliable, compact, inexpensive to produce, and the door 4 is accidentally opened while the mechanism is in operation. In particular, it is wired through openings 20 and 70 prior to assembly and then firmly coupled through opening 20 from the outside of the instrument, providing a rigid and trouble free assembly.

Claims (9)

A door for blocking an opening formed through the body of the instrument and a locking means cooperating around the apparatus, the instrument body comprising a single unit; A fixed support element integrally attached to the door and integral with the body; Said locking means pivoting on said fixed support element with respect to the action of said first elastic means; And a retractable clamping means configured to allow the locking means to rotate outward by the user in the direction for releasing the door when pulled out. 2. The lock of claim 1 wherein the stationary support element has a lateral opening opposite the door and is coupled to the instrument body inside the lateral recess of the door seat and to the side of the door. A base fixed to an end wall of the stationary support element and pivoting thereon about a first axis parallel to the lateral opening of the stationary support element, the body receiving retractable clamping means and integrally with the bottom And the locking means is seated on the base integrally with the base and pivots about a second axis parallel to the first axis, wherein the locking means is configured to engage inside the outer groove on the corner of the door. Door locks of appliances. 3. The fixing element of claim 2, wherein the first elastic means is located between the base and the end wall of the fixing support element to prevent rotation towards the base and the lateral opening. Door mechanism of a domestic appliance, characterized in that it cooperates with a second elastic means to prevent rotation of the fixed support element toward the lateral opening. 4. The retractable clamping means according to claim 2 or 3, wherein the retractable clamping means slides into the housing body and protrudes from a first end attached integrally with the protruding handle therefrom, the handle end being adapted to allow the user to The spring and the tubular element clamped between the tubular element and the end wall of the housing body to push the tubular element protruding coaxially from the housing body enough to grip the handle are removed. Means for selectively securing the position, or the withdrawn position of the tubular element, or the tubular element entirely within the housing body except at its end, and the handle is in a hunched position in contact with the door Door of the household appliance, characterized in that lock. 4. The method of claim 2, wherein the base has a safety lock means for preventing the door from being accidentally opened to prevent the base from turning relative to the fixed support element when the mechanism is actuated. Door locks for household appliances. 6. The device of claim 5, wherein said safety lock means is contained in a space inside said base, said means for electrically connecting to said instrument; First and second through holes connected to the electrical connecting means and to the thermally expanding conductive element and adjacent to each other by expansion of the thermally expanding conductive element and formed in the base and the fixed support element, respectively. A door lock for home, characterized in that consisting of at least one stone piece is fixed to the pulled out position to combine at the same time. 7. The door according to any one of claims 2 to 6, wherein towards the door, the fixed support element cooperates with the door when the door blocks the opening of the body, and when the door and the locking means are released. The door lock of a household appliance, characterized in that it has an elastic element exhibiting a flexible pressure to help open the door. And a door locking device as claimed in any one of claims 2 to 7, having a body having an opening coupled to the hinge of the body and blocked by the door. And wherein said first axis, in which said base rotates about it, is parallel to the hinge axis of said door. 9. The door lock according to claim 8, wherein the door lock is attached only to the mechanism body, and is included in contact with the door in an axial recess of the door seat in which the opening is formed, and the locking means contacts the door. The door lock of the household appliance, characterized in that configured to be fixed to the inside of the sheet in the peripheral seal of the.