DE202021102401U1 - Drawer locking device - Google Patents

Abstract

Drawer locking device,
• with a bolt (9) designed as a rocker,
which is intended to be mounted below a drawer (3) in the interior of a furniture compartment (1) and which is pivotably mounted about a pivot axis (10) between a locking position and a release position,
and wherein the pivot axis (10) divides the bolt into a front part (11) and a rear part (12),
• wherein the bolt (9) in its locked position towards a front, open end of the furniture compartment (1) has its front part (11) which slopes downward forwards and its rear part (12) which rises to the rear
and in its release position the front end of the front part (11) is arranged higher than in the locking position,
• and where the bolt (9) strives to assume its bolt position,
• and with a holder (8),
which is intended to be mounted under a floor (6) of a drawer (3),
and which protrudes so far down that the holder (8) pushes the rear part (12) of the bolt (9) down into the release position when the drawer (3) is pushed into the furniture compartment (1),
and which is arranged so far back that it engages behind the bolt (8) when the drawer (3) is pushed into the furniture compartment (1) and closed,
• and wherein the drawer (3) has a front panel (4),
characterized,
• that the cover (4) protrudes over the bottom (6) of the drawer (3) downwards,
• In the lower area of the panel (4) a vertically movably mounted lifter (14) is arranged, which extends to the front part (11) of the bolt (9) when the closed drawer (3) is pushed into the furniture compartment (1),
• A movable actuating element (17) is arranged on the panel (4) above the lifter (14),
• and that the lifter (14) is connected to the actuating element (17) via transmission means (15) in such a way that the lifter (14) can be moved from a lower rest position into a raised working position by means of a movement of the actuating element (17), in which, when the drawer (3) is closed and pushed into the furniture compartment (1), the front part (11) of the bolt (9) is raised and the bolt (9) assumes its release position.

Description

The innovation relates to a drawer locking device according to the preamble of claim 1.

A generic drawer locking device is known from practice. For example, on boats, in mobile homes and the like, it is desirable to keep drawers in their closed position particularly reliably, even if the vehicle in question in which the drawer is located assumes an inclined position and the drawer tries to get out of a furniture body and into its To drive open position. Therefore, for such applications, drawer locking devices are known that secure the drawer particularly reliably in its closed position, with higher holding forces than are known, for example, from magnetic holding means or the so-called "self-closing" furniture fittings of furniture used in the household.

In the generic locking device, a wedge is arranged under the bottom of the drawer, which tapers towards the rear, that is, in the direction from the front or panel of the drawer to its rear. When the open drawer is moved into its closed position, this wedge comes against the upwardly protruding rear end of a rocker, which forms the latch for the drawer. The rocker is set so that in its rest position the rear end protrudes upwards, for example due to gravity due to sections of the rocker of different sizes or different weights on both sides of its pivot axis, or by magnetic holding forces, by spring force or the like. This rest position, which the bolt strives to assume automatically, also represents its bolt position, in which locking of the drawer is possible. Against the restoring force acting in this way, the rocker can be pivoted when the drawer is closed, so that the bolt is moved from its rest or locking position into a release position and the wedge can be moved over the downward yielding rocker.

When the drawer is closed, the wedge engages behind the rocker with its wider - i.e. lower end, which protrudes deeper and which, due to the restoring force, has automatically returned to its rest or locking position after the wedge no longer acts on the rear end of the rocker. In its closed position, the drawer is now positively secured against unintentional opening. The wedge is therefore referred to as a holder because it, in cooperation with the bolt, holds the drawer in its closed position.

To open the drawer, it is raised so far that the lower edge of the wedge is higher than the upper edge of the latch, i.e. than the rear edge of the rocker. The drawer can now be moved forward into its open position. At the earliest when during this opening movement the leading edge of the wedge protruding furthest down is above the rear edge of the rocker protruding furthest upwards, the drawer can be lowered again so that the wedge is now in its rest position against its restoring force Release position is moved and the drawer can be moved further into its fully open position.

The generic drawer locking device has proven itself excellently in practice due to its functional reliability. Depending on what the drawer is loaded with, lifting the drawer at the beginning of the opening movement can make handling of the drawer more difficult due to the high weight of the drawer. In addition, free space is required in the furniture front above the drawer panel to enable the drawer to be lifted when the opening movement begins. For aesthetic reasons, it may be desirable to allow the narrowest possible joints between the individual panels of doors, drawers and the like in the furniture front.

In practice, a non-generic drawer locking device is also known from the field of boat interiors, which has a spring-loaded locking hook behind the drawer panel, which engages behind the furniture body above the drawer. Through a hole in the drawer panel, the locking hook can be moved into a release position against the spring action, so that the drawer can be opened. Due to the hole, the drawer is not protected against the ingress of dirt, moisture or insects. In addition, the locking hook is visible when the drawer is open, which can be aesthetically undesirable, and so that the locking hook and its spring mechanism are exposed to mechanical influences or the ingress of foreign bodies or dirt, which can endanger the mobility and thus the functional reliability of the locking hook.

The object of the innovation is to improve a generic drawer locking device in such a way that it enables the drawer to be opened without having to lift the drawer.

This object is achieved by a drawer locking device with the features of the claim 1 solved. Advantageous refinements are described in the subclaims.

In other words, the innovation suggests using a lifter with which the front part of the rocker hanging downwards can be lifted. The lifter is therefore designed and arranged so that it can be moved upwards when the drawer is in its closed position and that it grips the front part of the rocker when the drawer is in its closed position. In the simplest case, the lifter can extend under the front, lower edge of the rocker. However, an opening can also be provided in the front part of the rocker, or an eyelet or a bracket, a hook or the like can be arranged on this front part, so that in any case the lifter can act on the front part of the rocker in the manner that when the lifter is raised, the front part of the rocker is also raised and accordingly the rear part of the rocker is lowered so far that the holder, for example the wedge mentioned, can pass the rear part of the rocker when the drawer is opened.

The lifter extends so far back that it acts on the bolt when the drawer is opened and keeps the front part of the rocker raised until the holder is above the rear end of the rocker during this opening movement, so that now the automatic Return of the bolt to its bolt position is prevented and the drawer can be opened further without any problems, even if the lifter no longer acts on the bolt.

In order to raise the lifter and in this way to move the bolt into its release position, an actuating element is arranged on the panel above the lifter, which in the simplest case can be actuated manually, but possibly also by motor. Transmission means run from this actuating element to the lifter, for example in the form of a cable pull, a linkage or the like, so that in any case the movement of the actuating element is transferred to the lifter and the lifter can be raised by means of the actuating element.

The actuation of the actuating element requires a comparatively small amount of force, even if the drawer is loaded with a great deal of weight, so that the handling of the drawer when it is opened is simplified and made easier. In addition, the drawer does not need to be movable in height, so that the panel of the drawer can connect to adjacent sections of a furniture front, or to a worktop or the like, with a minimal joint or even without joints.

The transmission means between the actuating element and the lifter can advantageously be designed as a pulling element so that, in the interests of structural simplification, the lifter can be lifted from its rest position into its working position without additional deflection elements or the like, and the lifter can thus be pulled up using the transmission means.

The actuating element can advantageously be designed as a rotary fitting. In this case, the transmission means connect eccentrically to the rotary fitting, so that a downwardly acting pressure force or an upwardly acting tensile force can be generated by a pivoting movement of the rotary fitting, which can be transmitted to the lifter via corresponding transmission means.

If the actuating element is moved by a motor, it can be moved between an initial position and a working position by means of the motor, and accordingly can also be moved back into its initial position by a motor. However, if manual actuation of the actuating element is provided, it can be advantageous to hold the actuating element in its starting position by means of spring force. If several drawers are arranged in a furniture front and accordingly several actuating elements are visible on this furniture front, an aesthetically advantageous appearance is achieved in that all actuating elements are aligned in the same way and are not inclined to one another or are arranged irregularly in some other way. The spring also has the effect that the actuating element is automatically returned to its starting position, so that this movement does not have to be carried out manually and so that the actuation of the drawer locking device is simplified in this way.

An advantageous, space-saving and, in particular, flat design of the spring used for this purpose can consist in designing the spring as a coil spring which runs around the pivot point of the rotary fitting. In this way, a fitting can be created that can be accommodated in a pocket of the drawer panel, i.e. in a cutout that is made in the rear of the panel.

The transmission means can advantageously run in the panel of the drawer. In this way, the transmission means are optimally protected from external influences and, for example, unwanted deformations, so that the The functional reliability of the drawer locking device is guaranteed over a long period of time.

Advantageously, the drawer can firstly have a front wall as a structural element of the drawer itself, and secondly the mentioned panel of the drawer, which is mounted as a decorative element in front of the front wall and forms a visible part of the furniture front. Accordingly, the drawers can be manufactured in large numbers as identical parts, and the drawers can be adapted to the desired external appearance of the entire piece of furniture by means of different decorative elements, namely by means of different panels. In addition, this results in the possibility of arranging fittings and possibly also transmission means, which are provided for actuating the lifter, in an openly accessible manner in the panel, namely in recesses in the panel that are open to the rear. When the panel is mounted on the front wall of the drawer, such functional elements are housed protected all around, which is advantageous for their functional reliability and also for aesthetic reasons.

If manual actuation of the actuating element is provided, a movable handle is arranged on the panel, accessible to a user, which can be manually actuated by the user and which is assigned to the actuating element, so that the movement of the handle causes a movement of the actuating element. The handle can be designed, for example, in the form of a slide, a lever or the like. In an advantageous embodiment, the handle can be mounted such that it can pivot and be designed, for example, as a rotary knob. In particular, if such a rotary knob is elongated, for example oval, easy handling of the drawer locking device is supported due to the leverage around the pivot point.

A damper can advantageously be assigned to the actuating element, so that a movement of the actuating element takes place in a correspondingly damped manner. In this way, a hard stop at the end of the movement path is avoided. Otherwise, there could be the risk that the two abutting components work into one another, so that, for example, the orientation of the handle visible on the furniture front, already mentioned above, would change in the starting position and would differ from the other handle. This can be avoided by the dampened movement.

One-sided and double-sided dampers are available commercially. In the case of resetting of the actuating element supported by spring force, the use of a unidirectional damper can be provided so that the actuating element can be moved from the starting position into the working position without having to overcome a damping resistance. If the handle acting on the actuating element is released later, the return movement of the actuating element into its starting position is dampened, so that the abovementioned hard stop is avoided, which, as described, could be functionally disadvantageous and could also be perceived as acoustically disruptive.

The damper can advantageously be designed as a rotary damper, since it has small dimensions and is economically available.

• 1 einen Vertikalschnitt durch einen vorderen, unteren Bereich eines Möbelfachs samt darin befindlichem Schubkasten,
• 2 eine Ansicht von vorn auf ein Betätigungselement und einen darunter angeordneten, aus illustrativen Gründen um 90° gedrehten Heber, und die
• 3 und 4 vergleichende Darstellungen des Betätigungselements von 2 in dessen Ausgangs- und Arbeitsstellung, wobei jeweils eine in dem Betätigungselement angeordnete Feder oberhalb des Betätigungselements separat dargestellt ist.

An exemplary embodiment of the innovation is explained in more detail with the aid of the purely schematic representations. It shows

• 1 a vertical section through a front, lower area of a furniture compartment including the drawer located therein,
• 2 a view from the front of an actuating element and an arranged underneath, for illustrative reasons rotated by 90 °, and the
• 3 and 4th comparative representations of the actuator of 2 in its starting and working position, a spring arranged in the actuating element being shown separately above the actuating element in each case.

In 1 is a furniture compartment 1 indicated, with a shelf 2 the furniture compartment 1 limited downwards. Inside the furniture compartment 1 there is a drawer 3 in its closed position, in which it is as far as possible in the furniture compartment 1 has driven in. There is an aperture 4th of the drawer 3 the front edge of the shelf 2 at. The aperture 4th represents part of the furniture front and is on the front of a front wall 5 of the drawer 3 attached. From this front wall 5 from a floor extend 6th and sidewalls 7th of the drawer 3 to the rear up to a rear wall, not shown, of the drawer 3 .

Underneath the ground 6th of the drawer 3 is a holder 8th mounted, which is at least partially designed wedge-shaped, namely in its rear, right in the drawing, area. When the drawer 3 is in its illustrated closed position, the holder engages behind 8th a latch 9 , which is designed as a rocker around a pivot axis 10 is movably mounted and accordingly by the pivot axis 10 in a front part 11 and a rear part 12th is divided. The latch is in the situation shown 9 in its rest position, which it strives to take automatically and which is also referred to as the control position. The trailing edge of the rear part 12th protrudes so far that it is with the holder 8th collides in case the drawer 3 to be opened from its illustrated closed position. This is how the drawer is 3 by means of the bolt 9 secured in its closed position.

The latch 9 has a stop so that the rear part 12th cannot be moved further upwards and accordingly also the lower edge of the front part 11 at a distance above the shelf 2 is held. This distance allows for an L-shaped lifter 14th the front part 11 of the bolt 9 can reach under when the drawer 3 is closed. From the jack 14th transmission media run out 15th inside the aperture 4th up. To this end, the bezel points 4th a recess open to the rear 16 on which through the front wall 5 of the drawer 3 is covered or closed.

2 shows the jack 14th and the transmission means shown interrupted 15th that from the jack 14th run upwards to an actuator 17th , which is also in the correspondingly enlarged recess 16 the aperture 4th is arranged. During the lifter 14th in the same orientation as in 1 is shown is the actuator 17th shown pivoted by 90 °. The actuator 17th has a housing 18th on, in which a slide 19th is mounted movable in height.

In 2 is the slide 19th - and thus the entire actuator 17th - In its starting position or rest position, the slide 19th occupies a lower position. The jack is located accordingly 14th in a lower position, which is also called the rest position of the lifter 14th can be designated and from 1 can be seen. By means of a spring 20th , which is designed as a clock spring, is the actuating element 17th automatically held in this rest position. The feather 20th is supported on the one hand on a housing journal 21 from, the stationary on the housing 18th is arranged, and on the other hand on an eccentric pin 22nd on a pivotably mounted eccentric 23 is arranged.

3 shows the actuator 17th in its starting position. The spring is for clarity 20th separately and above the housing 18th shown. It is also in the same order as in 2 . The slider 19th is in its lower position and is with lower peripheral sections corresponding sections of an inner contour of the housing 18th at. The slider 19th is designed like a frame and surrounds an inner space 24 in which the eccentric 23 is arranged. Also the eccentric 23 surrounds a free space that acts as an axis opening 25th is designated and serves to accommodate an axis, which can be designed as a square rod in the illustrated embodiment. This axis is located in front of the aperture 4th a handle so that the eccentric 23 can be pivoted about the axis by means of a corresponding pivoting movement of the handle.

By turning the handle and the eccentric to the right 23 can the actuator 17th from the in 3 apparent starting position can be brought into a working position, which in 4th is shown. Here, too, is the pen 20th separately and above the housing 18th illustrated, and those to the feathers 20th added arrows show comparative in the 3 and 4th how the configuration of the spring 20th changes. While that the housing journal 21 adjacent end of the spring 20th always remains stationary, the spring becomes 20th eager to see if its other end together with the eccentric pin 22nd is moved clockwise. Below the spring 20th is in 4th recognizable that the eccentric 23 due to the mentioned pivoting movement the slide 19th has raised.

The means of transmission are also corresponding 15th and consequently also the lifter 14th has been raised so that compared to the representation of 1 the front part 11 of the bolt 9 raised and the latch 9 around the pivot axis 10 is pivoted. This will make the rear part 12th of the bolt 9 moved downwards so that now the drawer 3 pulled forward, so it can be opened. The holder gets caught 8th over the back part 12th of the bolt 9 , even while the lifter 14th the lower part 11 of the bolt 9 raises. When the lifter 14th out of engagement with the latch 9 comes, the bolt can accordingly 9 does not return to its locking position, but just lies on the underside of the holder 8th so that the drawer 3 can be opened completely without any problems.

During a later closing process, the wedge-shaped section of the holder gets 8th initially in contact with the rear part 12th of the bolt 9 so that this rear part 12th lowered and the front part 11 of the bolt 9 is raised. Still while the keeper 8th on the bolt 9 acts, moves during the closing movement of the drawer 3 the lifter 14th under the front part 11 of the bolt 9 . If then the holder 8th out of engagement with the latch 9 comes is the bolt 9 endeavors to automatically assume its locking position and the front part 11 descends until the latch 9 comes to its stop or the front part 11 on the jack 14th as in 1 shown.

List of reference symbols

1

Furniture compartment

2

Fold bottom

3

Drawer

4th

cover

5

Front wall

6th

floor

7th

Side wall

8th

holder

9

bars

10

Swivel axis

11

Front part

12th

Back part

14th

Lifter

15th

Means of transmission

16

Recess

17th

Actuator

18th

casing

19th

Slider

20th

feather

21

Housing spigot

22nd

Eccentric pin

23

eccentric

24

free space

25th

Axle opening

Claims (12)

Drawer locking device, • with a locking bar (9) designed as a rocker, which is intended to be mounted below a drawer (3) in the interior of a furniture compartment (1), and which is between a locking position and a release position about a pivot axis (10 ) is pivotably mounted, and the pivot axis (10) divides the bolt into a front part (11) and a rear part (12), ) has its front part (11) which is inclined forward downward and has its rear part (12) which rises to the rear and in its release position the front end of the front part (11) is arranged higher than in the locking position, • and where the bolt (9) strives to assume its bolt position, • and with a holder (8) which is intended to be mounted under a floor (6) of a drawer (3), and which is so far down ra gt that when the drawer (3) is pushed into the furniture compartment (1), the holder (8) presses the rear part (12) of the latch (9) down into the release position, and it is arranged so far back that it is at The closed drawer (3) pushed into the furniture compartment (1) engages behind the bolt (8), • and wherein the drawer (3) has a front panel (4), characterized in that • that the panel (4) extends over the floor ( 6) of the drawer (3) protrudes downwards front part (11) of the bolt (9) extends, • a movable actuating element (17) is arranged on the panel (4) above the lifter (14), • and that the lifter (14) with the actuating element (17) via transmission means (15) is connected in such a way that by means of a movement of the actuating element (17) the lifter (14) is movable from a lower rest position to a raised working position, in which the front part (11) of the bolt (9) is raised and the bolt (9) is its when the drawer (3) is closed and the drawer (3) is pushed into the furniture compartment (1) Approval position. Drawer locking device according to Claim 1 , characterized in that the transmission means (15) are designed as a tension element. Drawer locking device according to Claim 1 or 2 , characterized in that the actuating element (17) is designed as a rotary fitting to which the transmission means (15) are eccentrically connected, in such a way that upon a rotary movement of the actuating element (17) the transmission means (15) from a first to another, second Height to be performed. Drawer locking device according to Claim 3 , characterized in that the actuating element (17) is held in an initial position by means of spring force is, in which the lifter (14) assumes its rest position, and that the actuating element (17) is movable against the spring action from the starting position into an actuating position in which the lifter (14) assumes its working position. Drawer locking device according to Claim 4 , characterized in that the spring (20) is designed as a coil spring which runs around the pivot point of the rotary fitting. Drawer locking device according to one of the preceding claims, characterized in that the transmission means (15) run in the panel (4). Drawer locking device according to Claim 6 , characterized in that the drawer (3) has a front wall (5), and the panel (4) is designed as an additional decorative panel mounted in front of the front wall (5), which is one towards the front wall (5) of the drawer (3) has open recess (16) in which the transmission means (15) run. Drawer locking device according to Claim 7 , characterized in that the actuating element (17) is also arranged in the recess (16) of the panel (4). Drawer locking device according to Claim 8 , characterized in that a pivotably mounted handle is arranged in front of the panel (4) and connected to the actuating element (17). Drawer locking device according to one of the preceding claims, characterized in that a damper is assigned to the actuating element (17) in such a way that a movement of the actuating element (17) takes place in a damped manner. Drawer locking device according to the Claims 4 and 10 , characterized in that the damper is designed to act on one side, in such a way that the actuating element (17) can be moved undamped from the initial position into an actuating position and can be automatically moved back into its initial position by spring force and damped. Drawer locking device according to Claim 10 or 11 , characterized in that the damper is designed as a rotary damper.

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