EP3825499A1 - Securing and unlocking device and unlocking method for same - Google Patents

Abstract

The invention relates to an unlocking method and securing and unlocking device (1,1 ') for a drawer, flap or door (4), which is arranged in a frame (5), for example a furniture body, so that it can be opened towards an operator, with a counter a spring-force movable latch (2) and an actuating element (3, 3 ') on an access opening (41) on the drawer, flap or door (4), the securing and unlocking device (1) on the drawer, flap or door ( 4) is arranged and the latch (2) for locking the drawer, flap or door (4) engages behind the frame (5) or a counter bearing (51) attached to it, the actuating element (3, 3 ') with the latch ( 2) is operatively connected in such a way that when the operating element (3, 3 ') is operated by an operator, the latch (2) is retracted against the spring force in order to be able to open the drawer, flap or door (4), whereby the operating element (3 , 3 ') into the engagement opening (41) in the drawer de, flap or door (4) fitted or arranged on the inside adjacent to the engagement opening (41), the actuating element (3, 3 ') being designed to be displaceable when the operator's finger (s) engage, characterized in that on the inside The end of the actuating element (3, 3 ') facing the drawer, flap or door (4) is formed with a ramp (32) with which the latch (2) can be moved against the spring force, as well as on the securing and unlocking device (1, 1 ') a handling means (12) is provided on which the operator's finger (s) grip behind the drawer, flap or door (4) to open it.

Description

The invention relates to an unlocking method for a drawer, flap or door that can be opened by an operator in a frame, for example a furniture body, towards the operator Engagement opening is arranged on the drawer, flap or door and the latch for locking the drawer, flap or door engages behind the frame or a counter bearing attached to it, the actuating element being operatively connected to the latch so that when the actuating element is actuated by one or more Finger of the operator, the trap is retracted against the spring force in order to be able to open the drawer, flap or door, the actuating element being displaced when the operator's finger (s) intervene. The invention also relates to a securing and unlocking device for a drawer, flap or door, which is arranged in a frame, for example a furniture body, so that it can be opened to an operator, with a latch that can be moved against a spring force and an actuating element at an engagement opening on the drawer , Flap or door, the securing and unlocking device is arranged on the drawer, flap or door and the latch for locking the drawer, flap or door engages behind the frame or a counter bearing attached to it, the actuating element being operatively connected to the latch that when the operating element is actuated by an operator, the latch is retracted against the spring force in order to be able to open the drawer, flap or door, the operating element being fitted into the engagement opening in the drawer, flap or door or being arranged on the inside against the engagement opening , the actuation element is designed to be displaceable when the operator's finger (s) intervene.

Such a locking system is from the EP 1 959 075 A1 known. An actuating element is provided therein, which is spring-loaded and operatively connected to a latch. This locking mechanism can be operated by an operator's hand and the door can then be opened towards the operator.

The US 2010/0244465 A1 describes a locking mechanism with which a door, flap or drawer can be opened in the direction of the operator. However, it cannot be seen how an operator can then open the door, flap or drawer.

The FR 1 136 148 A describes a lock mechanism for escape doors (fire doors), which must enable simple, pushing operation in an emergency. In this respect, the opening direction is already exactly the opposite of the subject of the application.

With a locking device according to US 2012/0074714 A1 it is a special form for the second door leaf of a double door, in which the actuating mechanism for unlocking is housed sunk in the front side of the door leaf, in which the first door leaf engages. Obviously, this mechanism does not require any means of intervention.

From the U.S. 3,450,453 a drawer lock for filing cabinets is known in which an adjusting mechanism is integrated in the front plate of the drawer, in which an actuating plate pivotable about a horizontal axis is provided in a recessed grip of the drawer front. When reaching into this recessed grip, the user pulls the actuating plate towards the latter and thereby opens the drawer lock. Accordingly, the drawer can then be opened by the user when the user continues to pull.

Furthermore, from the DE 20 2010 011 972 U1 a device for securing the closed position of a movably arranged closing element on a furniture frame is known. The unlocking is triggered by pressing down an actuating means with appropriate deflection mechanisms, the drawer, flap, door, etc. must then be opened using a separate handle.

From the DE 196 29 866 C2 a similar device in the form of a lock is known. The lock comprises a latch bolt lock which can be arranged on the inside of a door facing the interior of a furniture body and has a bolt, the bolt being provided at the same time with the functionalities of a latch. The bolt can be set in its closed position, which is extended from the housing of the latch bolt lock and in which it engages behind a body stop located inside the furniture body, via a push-button mechanism, whereby the door is not only locked but also locked by means of the lock. To operate the push-button mechanism, it has a push-button accessible from the outside of the door facing away from the furniture body. If the bolt is not fixed by the push-button mechanism, the door can be opened by exerting a tensile force on the same, the tensile force having to exceed a certain level in order to force the bolt into the housing against the action of a compression spring.

The disadvantage of these last-mentioned, known locking mechanisms is that, on the one hand, an actuating element (push-button) has to be depressed and, on the other hand, the drawer, flap or door then has to be opened in the opposite direction of movement. It can in accordance with a locking mechanism DE 196 29 688 C2 It can also happen that the drawer, flap or door is unlocked, but still remains in the closed position due to the easily overcome resistance, although the non-locking can be recognized by the protruding position of the push-button. At the parking space of a mobile home, etc., this is also sufficient, which means that cupboards can be opened quickly. However, you tend to forget to lock all buttons again before departure. In the case of external forces, for example driving movements in mobile homes, caravans or sports boats, however, these can then supposedly change closed drawers, flaps or doors independently, which can lead to a considerable hazard and / or to considerable damage.

Similar to the drawer lock described above is from the DE 100 05 042 C1 a locking device for a drawer or the like running in a housing, in particular for installation in a workshop facility on board a motor vehicle, is known in which a handle rotatable about its longitudinal axis or a correspondingly designed push button allows the drawer in question to be unlocked to operate the same.

The object of the invention is therefore to specify an unlocking method or a securing and unlocking device according to the prior art described at the beginning, in which there is a safe one-handed or one-finger operation with a high level of security against inadvertent actuation.

This object is achieved with an unlocking method according to claim 1 or a securing and unlocking device according to claim 4.

The fact that a handling means is provided on the securing and unlocking device on which the operator's finger (s) reach behind the drawer, flap or door to open it and thereby pulling in the latch by means of a ramp on the actuating element against the spring force and opening the drawer, flap or Door is unlocked, a one-handed / one-finger operation, which can be carried out intuitively by the operator, is provided for opening the corresponding drawer, flap or door. The actuating element virtually closes the engagement opening, so that when the operator intervenes, for example with a finger, the actuating element is displaced by the operator, automatically unlocking the drawer, flap or door (pushing the latch back against the spring force). The operator's finger, which is now in the engagement opening, intuitively intervenes Handling means, for example at least a part of the access opening, so that the unlocked drawer, flap or door can then be opened towards the operator by the operator with the finger inserted into the access opening. The operator can thus unlock and open the drawer, flap or door with "one handle" and consequently still has his second hand free to hold an object or the like to be stowed or to hold on to himself (for example in a motor home or sports boat).

According to the device, the invention is characterized in that on the end of the actuating element directed towards the inside of the drawer, flap or door, a run-up slope is formed, with which the latch can be moved against the spring force, and a handling means is provided on the securing and unlocking device, where the operator's finger (s) reach behind the drawer, flap or door to open it. This enables intuitive operation with one hand or with one finger of the operator.

In principle, the latch, which can be moved against a spring force, ensures that when the drawer, flap or door is closed, the drawer, flap or door is immediately locked in the closed position by the latch that is pushed forward with spring force. The drawer, flap or door is thus secured in its closed position without any further actuation, that is to say in particular from being opened unintentionally while driving the caravan, mobile home or sports boat. Due to the particularly simple operation, namely the insertion of the operator's finger (s) into the access opening and displacement of the actuating element, this locking is released intuitively and with this finger (s) in the access opening the then unlocked drawer, flap or door opened by touching or reaching behind a handling means and pulling it out. The handling means can be designed as an undercut or edge for reaching behind.

If the actuating element is pivoted about a fixed axis within the engagement opening or moved therein, the latch pulls in against the spring force via the run-up slope and unlocks the drawer, flap or door, the immediate unlocking of the drawer, flap or door takes place exactly when the operator intervenes into the engagement opening. This ensures that the unlocking takes place immediately with the intervention, but the drawer, flap or door is securely locked beforehand (before the operator touches the actuating element) and is only unlocked at the moment when the operator is in controlled access. Accidental opening is therefore impossible.

If the actuating element is held by the spring force acting on the latch or a separate spring force in a basic position in which the latch is in the locked position, the locked position of the relevant drawer, flap or door is immediately at the position of the actuating element when the drawer is closed , Flap or door recognizable. This in turn means that the drawer, flap or door is only unlocked when the operator intervenes on the actuating element and thus pivoting / shifting the actuating element.

When the actuating element is mounted pivotably or displaceably in the direction of the engagement opening, actuation of the actuating element that is noticeable to the operator and thus a very controlled use of the securing and unlocking device is made possible.

Because the drawer, flap or door has a front panel with a visible front surface and that the actuating element has a visible and actuating surface, the visible and actuating surface of the actuating element in the engagement opening in the basic position in the plane of the visible front surface, a Visually particularly attractive and also in terms of use advantageous formation of the locking and unlocking device achieved. If on the front panel of the drawer, If there are no protruding controls, handles or knobs on the flap or door, unintentional getting stuck on such elements can be avoided, especially if there is limited space, as is the case with caravans, mobile homes, sports boats and the like, damage or even injuries and especially unintentional Opening or unlocking the drawers, flaps or doors can be avoided.

In a further embodiment, the securing and unlocking device is designed in a housing, the housing being placed on the inside of the drawer, flap or door or at least partially embedded in a front panel of the drawer, flap or door. The securing and unlocking device can thus be used easily on furniture and in particular in the interior fittings of mobile homes, caravans and sports boats, etc.

If the handling means in or behind the engagement opening is designed as a rear-engaging edge or projection, simple, inexpensive assembly is made possible without components that have to be separately attached.

In order to reduce the assembly and adjustment effort even further, the handling means can be integrally formed in the housing.

This means that when caravans, mobile homes, sports boats, etc. are being expanded, a corresponding locking and unlocking device can be easily screwed on the inside of each drawer, flap or door of the furniture installed there or inserted using suitable tools (milling machine / drilling machine). For example, a configuration in a cylindrical shape is conceivable, which can be inserted into a suitable bore in the front panel of the respective drawer, flap or door with a precise fit and in a visually appealing manner.

Two exemplary embodiments are described in detail below with reference to the accompanying drawings.

Fig. 1

eine Sicherungs- und Entriegelungsvorrichtung in einem ersten Ausführungsbeispiel in räumlicher Ansicht;

Fig. 2

die in Fig. 1 dargestellte Sicherungs- und Entriegelungsvorrichtung in einer Schnittdarstellung im verriegelten Zustand (Grundstellung);

Fig. 3

die Sicherungs- und Entriegelungsvorrichtung gemäß Fig. 1 und 2 im Querschnitt in betätigter, entriegelter Stellung und

Fig. 4

eine Sicherungs- und Entriegelungsvorrichtung in einem zweiten Ausführungsbeispiel in einer teils geschnittenen Seitenansicht mit Möbelbestandteilen.

Show in it:

Fig. 1

a locking and unlocking device in a first embodiment in a three-dimensional view;

Fig. 2

in the Fig. 1 shown securing and unlocking device in a sectional view in the locked state (basic position);

Fig. 3

the locking and unlocking device according to Figs. 1 and 2 in cross-section in the actuated, unlocked position and

Fig. 4

a securing and unlocking device in a second embodiment in a partially sectioned side view with furniture components.

Fig. 1 shows a locking and unlocking device 1 in a first embodiment in a three-dimensional view. The securing and unlocking device 1 is accommodated in a cuboid housing 10 which has two fastening tabs 11 with which the housing 10 can be attached to the rear of a front panel 40 of a drawer, flap or door 4, not shown here. In the housing 10 a trap 2 is guided displaceably. The trap 2 has on its outer, in Fig. 1 or in the side view in the Fig. 2 and 3rd upwardly pointing end on a latch bevel 21, whereas at the opposite end of latch 2 a compression spring 22 ( Fig. 2 ) is provided between this downward end of the trap 2 and the housing 10. Accordingly, the latch 2 can be pushed into the housing 10 against the spring force generated by the compression spring 22. When closing the drawer, flap or door 4, not shown here, the latch 2 is displaced against the spring pressure of the compression spring 22 to engage behind a frame 5, for example a furniture body in which the drawer, flap or door 4 is guided, and then according to the bevel 21 for reaching behind the frame 5 (see Fig. 4 ) adjusted into the locking position by means of the spring force on the compression spring 22.

Furthermore, in Fig. 1 an actuating element 3 with its visible and actuating surface 31 is shown in the three-dimensional view. This situation is additionally in the Fig. 2 and 3rd in a sectional view along an in Fig. 1 The cut surface indicated by dash-dotted lines is shown. In the exemplary embodiment shown here, the actuating element 3 is designed to be pivotable about a pivot axis 30, as is shown in FIG Fig. 2 and 3rd can be seen. On the back of the actuating element 3, a run-up bevel 32 is formed which cooperates with a transverse bar 23 of the latch 2 in such a way that when the drawer, flap or door 4 is closed, the actuating element 3 is in the in Fig. 2 shown basic position. If the actuating element 3 is now operated by a finger of an operator who is in the plane of the drawing Figures 2 , 3 and 4 from the right (ie from the outside) approaches, depressed or displaced, namely about the pivot axis 30 according to FIG Fig. 3 pivoted, causes the run-up slope 32 in connection with the crossbar 23 a displacement of the latch 2 against the spring force caused by the compression spring 22 into the open position according to FIG Fig. 3 and thus unlocking the drawer, flap or door 4.

When the actuating element 3 is displaced by the operator's finger, this finger intuitively engages behind a handling means 12 which, in the exemplary embodiment shown here, is embodied in the housing 10 as an engaging edge. Correspondingly, the operator can reach behind this handling means 12 with his finger and open the drawer, flap or door 4, that is to say pull it towards him, namely in the plane of the drawing Figures 2 , 3 and 4 pull to the right. The latch 2 is in the open position, that is, in the unlocked position, so that the drawer, flap or door 4 can be moved accordingly.

In Fig. 4 a similar situation with a securing and unlocking device 1 'is shown in a second embodiment, with both the frame 5 in the form of a furniture body and the drawer, flap or door 4 with a front panel 40 being shown here. In the front plate 40 in the area of the securing and unlocking device 1 'is a

Engagement opening 41 is provided, which is designed, for example, as a circular bore through which a finger of an operator can easily be passed. Otherwise, components that are functionally identical to those of the first embodiment are provided with the same reference numerals. In contrast to the first exemplary embodiment, a laterally displaceable actuating element 3 ′ is provided instead of a pivotable actuating element 3. The laterally displaceable actuating element 3 'is shown schematically with a double arrow. This actuating element 3 'is fitted into the engagement opening 41 of the front panel 40 of the drawer, flap or door 4 in such a way that the viewing and actuating surface 31 of the laterally displaceable actuating element 3 is aligned in the same plane as the front surface 42 of the front panel 40.

In the Fig. 4 The position shown schematically relates to the basic position or closed position, as can also be seen from the latch 2 locked behind the frame 5 as a counter bearing 51. If the finger of an operator now pushes the laterally displaceable actuating element 3 'in the plane of the drawing according to FIG Fig. 4 is displaced from the right engaging to the left, the engagement opening 41 is released so that the finger intuitively grips behind a handling means 12 located in the engagement opening 41, here the rear edge of the engagement opening (41) and accordingly moves the drawer, flap or door 4 towards itself ( so in the plane of the drawing Fig. 4 to the right). In this case, by displacing the actuating element 3 ', the latch 2 has been moved into the open position, namely latch 2 retracted into the housing 10, via a corresponding run-up bevel 32 and crossbar 23 on the latch 2 (not shown here), so that the drawer, flap or Door 4 is no longer locked.

As soon as the operator pulls his finger out of the access opening 41 with the drawer, flap or door 4 open, the latch 2 returns to its basic position due to the resetting of the latch 2 caused by the compression spring 22 and takes the actuating element 3 or 3 'back into it via the associated ramp 32 its basic position, namely as in Fig. 2 or.

Fig. 4 shown, with. If the operator now moves the drawer, flap or door 4 back into the frame 5 of the furniture body, i.e. when it is closed, the spring-loaded latch 2 automatically engages behind this frame 5 or counter bearing 51 so that the drawer, flap or door 4 is securely locked again .

In a vehicle, for example a caravan, mobile home or sports boat, the drawer, flap or door 4 cannot open due to traffic movements, since the drawer, flap or door 4 is securely locked by the locking and unlocking device. Nevertheless, the drawer, flap or door 4 can be opened at any time simply by actuation, for example with the operator's finger, that is to say with one hand. Before leaving with a corresponding caravan, mobile home or sports boat, the user no longer needs to worry about locking the drawers, flaps or doors 4. When the drawer, flap or door 4 is closed, it is also forcibly locked. The risk of damage to objects in the vehicle that can fall out of improperly locked cabinets is correspondingly reduced, and in particular the risk of injury is reduced. It is also advantageous that devices for caravans, mobile homes or sports boats equipped with the locking and unlocking device 1 can have a completely smooth cabinet surface, since handle bars, knobs or handle bars are not required. By omitting these protruding components, the risk of injury to the occupants is also reduced.

List of reference symbols

1.1 '

Locking and unlocking device

10

casing

11

Fastening tab

12th

Handling means

2

Cases

21

Trap bevel

22nd

Compression spring

23

Transom

3, 3 '

Actuator

30th

Swivel axis

31

Visible and operating area

32

Approach slope

4th

Drawer, flap or door

40

Front panel

41

Engagement opening

42

Front surface

5

Frame, furniture body

51

Counter bearing

S.

Cut surface

Claims (9)

Unlocking method for a drawer, flap or door (4), which can be opened by an operator in a frame (5), for example a furniture body, towards the operator, a securing and unlocking device (1,1 ') with one against one Spring-force movable latch (2) and an actuating element (3, 3 ') is arranged on an engagement opening (41) on the drawer, flap or door (4) and the latch (2) for locking the drawer, flap or door (4) behind the frame or a counter bearing (51) attached to it, the actuating element (3, 3 ') being operatively connected to the latch (2) so that when the actuating element (3, 3') is actuated by one or more fingers of the operator the latch (2) is retracted against the spring force in order to be able to open the drawer, flap or door (4), the actuating element (3, 3 ') being displaced when the operator's finger (s) engage, characterized in that on the locking and unlocking s device (1,1 ') a handling means (12) is provided on which the operator's finger (s) grip behind the drawer, flap or door (4) to open it and thereby counteract the spring force by means of a bevel on the actuating element is drawn in and the drawer, flap or door (4) is unlocked. Unlocking method according to Claim 1, characterized in that the actuating element (3, 3 ') is pivoted about a fixed axis or displaced therein within the engagement opening (41). Unlocking method according to Claim 1 or 2, characterized in that the actuating element (3, 3 ') is activated by the spring force acting on the latch (2) or a separate spring force a basic position in which the latch (2) is in the locked position is held. Securing and unlocking device (1,1 ') for a drawer, flap or door (4), which is arranged in a frame (5), for example a furniture body, so that it can be opened towards an operator, with a latch (2 ) and an actuating element (3,3 ') on an engagement opening (41) on the drawer, flap or door (4), the securing and unlocking device (1) being arranged on the drawer, flap or door (4) and the Latch (2) for locking the drawer, flap or door (4) engages behind the frame (5) or a counter bearing (51) attached to it, the actuating element (3, 3 ') being operatively connected to the latch (2), that upon actuation of the actuating element (3,3 ') by an operator, the latch (2) is retracted against the spring force in order to be able to open the drawer, flap or door (4), the actuating element (3,3') in the Access opening (41) fitted in the drawer, flap or door (4) or on the inside at d he engagement opening (41) is arranged adjacent, wherein the actuating element (3, 3 ') is designed to be displaceable when the operator's finger (s) intervene, characterized in that the end facing the inside of the drawer, flap or door (4) Actuating element (3,3 ') a run-up slope (32) is formed with which the latch (2) can be moved against the spring force, and a handling means (12) is provided on the securing and unlocking device (1,1') which the operator's finger (s) grip behind the drawer, flap or door (4) to open it. Securing and unlocking device (1,1 ') according to claim 4, characterized in that the actuating element (3,3') is mounted pivotably or displaceably in the direction of the engagement opening (41). Securing and unlocking device (1,1 ') according to claim 4 or 5, characterized in that the drawer, flap or door (4) has a front plate (40) with a visible front surface (42) and that the actuating element (3,3 ') has a visible and actuating surface (31), the visible and actuating surface (31) of the actuating element (3, 3') in the engagement opening (41) in the basic position in the plane of the visible front surface (42). Securing and unlocking device (1,1 ') according to claim 6, characterized in that it is formed in a housing (10), the housing (10) being placed or at least partially on the inside of the drawer, flap or door (4) is embedded in the front panel (40) of the drawer, flap or door (4). Securing and unlocking device (1,1 ') according to claim 4, 5, 6 or 7, characterized in that the handling means (12) in or behind the engagement opening (41) is designed as an edge or projection from behind. Securing and unlocking device (1, 1 ') according to Claims 7 and 8, characterized in that the handling means (12) is molded onto the housing (10).

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