EP1898034B1 - Device for opening and/or closing a piece of furniture with a moveable part facing a stationary body and piece of furniture with such a device - Google Patents

Description

The invention relates to a device according to the preamble of Ansprüchs 1 and a piece of furniture according to claim 15.

Such a device is in EP 1 598 509 disclosed. Another device of the prior art shows DE 2917006 ,

State of the art

Furniture with mutually movable furniture parts such as cabinet carcasses with hinges swivel doors or flaps or with furniture carcasses to which a drawer or an extract or the like is movably housed by means of a guide are known in different configurations.

In such furniture so-called touch-latch arrangements for drawers, doors or flaps can be used, which hold the movable furniture part to form a closing gap between the body and movable furniture part in a closed position of the movable furniture part on locking mechanisms. For example, mechanical locks or magnetic means can be used to hold the movable furniture part, for example, magnetically opposite the furniture body in a closed position. In particular, in furniture with several movable furniture parts, it is desirable after assembly of the furniture for each movable furniture part individual closing gap for Adjust body to compensate, for example, due to the assembly deviations from a desired ideal mounting position of the fittings or guides. For example, neighboring movable furniture parts can be precisely aligned in this way, which is of great importance to the end user for optical reasons. Especially in furniture in touch-latch design, which are particularly preferred for handle-less furniture parts, the exact alignment of the front parts of the movable furniture parts is desired.

Purpose and advantages of the invention

The object of the invention is to provide a device or a piece of furniture with such a device with which it is easily possible for furniture in touch-latch design to allow a fine adjustment, in particular to compensate for assembly errors of fittings or guides or conditions to create a piece of furniture in an aesthetically and technically advantageous advantageous final assembly state or to increase the ease of use of the furniture.

This object is achieved by the features of Ansprüchs 1. In the dependent claims advantageous embodiments of the subject invention are shown.

The invention is first of a device for opening and / or closing a piece of furniture, wherein the furniture comprises a relative to a fixed furniture body movable furniture part, wherein the device has magnetic means with which in the installed state of the device on the furniture, in the closed state of the movable Furniture part, the two furniture parts to form a closing gap between the furniture body and movable furniture part to each other in Position are held and with ejection means, which are releasably and biasedly pushed out from an engaged locking position in a closed state of the furniture by pressing on the movable furniture part against an opening direction of the furniture part, so that the movable furniture part is pushed away with the ejection means, in particular with so-called Touch-latch arrangements, and the magnetic means comprise a first unit with a magnetic part and a second unit with a metallic counterpart, wherein one unit on the movable furniture part and the other unit on the furniture body can be arranged. The magnetic means are formed such that in the closed state of the movable furniture part, the magnetic part is not in contact with the metallic counterpart, when the movable furniture part is held with a magnetic holding force in the closed state. With an arrangement according to the invention, it is particularly reliable and easy to set a desired closed state between the movable furniture part and the furniture body, since the magnetic holding force is defined by a non-unterschreitbaren distance between the magnetic means. In particular, it is advantageous that no direct contact between the magnetic part and metallic counterpart is present or a desired effective clamping force between furniture body and movable furniture part is defined by the distance of the magnetic means. In particular, the distance is not "zero" and, for technical reasons, to be chosen such that it lies within a near range in which a comparatively high magnetic efficiency can be achieved, for example in the range of more than 50%, in particular more than 80% of a maximum magnet holding force with direct contact of magnetic part and metallic counterpart.

With the proposed arrangement, in particular no relatively high tearing or repulsive forces for separating the Magnetic means necessary, which is otherwise the case for directly in contact magnetic medium surfaces. Therefore, no correspondingly larger-sized bias, for example, a spring to provide the bias must be used or it must not be oversized. As a result, for example, a smaller-sized spring can be used, which accordingly also requires relatively smaller forces for compressing or tensioning the touch-latch arrangement, which makes closing the furniture more pleasant or easier for a person.

In particular, can be provided with the same magnetic locking force in the closed state, even if different closing gap widths in the individual movable furniture parts for the exact alignment of the front parts is necessary in several equipped with a proposed device movable furniture parts in a furniture body or adjacent carcasses. For example, during initial assembly, an individually different strong readjustment of the front parts and thus of the closing gap widths due to e.g. Installation errors may be necessary. This is particularly advantageous for convenient operation of the movable furniture parts. Because the magnetic Zuhaltekrafte or force ratios of the magnetic locking means, which act when opening, can be designed uniformly. A user can thus open any movable furniture part with the same applied release force, which is perceived as pleasant, or conversely, all movable furniture parts are held with the same clamping force in the closed position relative to the furniture body.

By contrast, in a direct contact between the magnetic part and the metallic or ferromagnetic counterpart, the clamping force would not be predefined or a function of a component dimension or a set value.

Rather, in this case, the clamping force depends essentially on internal or physical quantities or the magnet units themselves, e.g. from a temporal weakening of the magnetic force of a permanent magnet in the magnetic part. It is even conceivable, a desired locking force, which is applied for releasing the closing state, for example, by a person on the movable furniture part to open against the acting magnetic forces to permanently adjust a target value, if the distance between the magnetic member and metallic counterpart is indeed fixed but different fixed Values can be adjusted to eg The distance in the closed state, if necessary, to reduce slightly from time to time and thus in particular to compensate for a magnetic force attenuation.

In particular, any magnetically acting part can be understood by the magnet part, in particular a magnet or permanent magnet with or without a metallic or ferromagnetic part arranged thereon. The metallic counterpart can also be any magnetically acting one-part or multi-part part, in particular a ferromagnetic or magnetic part or even a magnet or permanent magnet, wherein in the installed state of the device, the magnetic polarities are aligned so that the magnetic part and metallic counterpart attract each other and thus the movable furniture part is used on the body in Magnetwirkungsbereich.

A preferred embodiment is also based on a device, in particular a furniture fitting, with a magnetic part or a ferromagnetic part and a discharge element arranged in a housing, wherein the discharge element has a stop surface, and wherein the magnetic part or ferromagnetic part has a spaced from the stop surface magnetic surface having. In this case, an actuating mechanism is coupled to the ejection member and the magnetic member or ferromagnetic member so that the ejection member and the magnetic member or ferromagnetic member are simultaneously adjustable by means of the actuating mechanism such that the distance between the abutment surface and magnetic surface is substantially equal in the various adjustment positions is. The distance between the abutment surface and the magnetic surface is particularly applicable when the abutment surface and the magnetic surface approach each other in a defined manner and are spaced apart from one another via the ejection element in a tightening position or in a magnetic force acting region existing between the respective parts. With the adjusting mechanism, it is particularly possible to make an adjustment according to the invention with regard to a desired distance between parts of the device, without having to change the acting magnetic attraction between the stop and the magnetic surface in the tightening position.

Starting from the aforementioned device for furniture or, for example, touch-latch arrangement with magnetic means, the essential aspect of the invention is that the ejection means comprise a magnetically adjacent to the arranged, in particular a sweeping through the magnetic means, non-magnetic ejection element, the opposite Magnetic means longitudinally displaceable and is designed such that in the installed state of the device by acting on the ejection element of the closing gap is adjustable. In particular, the action on the ejection element can take place in the case of the movable furniture part which is not in the closed state, because the ejection element is easily accessible or is in the extended state without the movable furniture part interfering for reasons of space. Preferably, the ejection means penetrate the magnetic means, but it is also conceivable another adjacent arrangement of the ejection means and magnetic means. By This procedure can be adjusted individually and in a simple manner and according to the invention without additional adjusting means of the closing gap for each movable furniture part.

Advantageously, the two units of the magnetic means in the closed state of the movable furniture part by a material-free area spaced from each other, in particular separated by an air gap. In this way, the entire arrangement can be realized uncomplicated or with few components or material saving.

Preferably, the two units of the magnetic means in the closed state of the movable furniture part on the ejection element are spaced apart. The ejection element, which consists, for example, in particular of plastic or another non-magnetizable or non-ferromagnetic material, can thus act as a spacer in addition to the provision of an ejection or insertion mechanism. The projection of the ejection element in the closed state at the respective magnetic means also affects the width of the closing gap. The closing gap between the body and the movable furniture part in the closed state can e.g. essentially correspond to the projection of the ejection element or be greater or have an additional share. In individual cases, e.g. in the body or furniture part partially sunk magnet means the closing gap also be smaller than the projection of the ejection element on the corresponding magnet means.

According to the invention, it is proposed that the ejection element is configured so as to be rotatable about its longitudinal axis such that in the installed state of the device the closing gap can be adjusted by rotating the abutment element about its longitudinal axis. By turning the ejection element can be adjusted very quickly and exactly a closing gap. Advantageously, the supernatant of the Ejection element to the adjacently arranged magnetic means or the swept by the ejection element magnet means not changed. For example, by means of corresponding threaded sections, the preconditions can be created very precisely and in the tightest space in order to predetermine the closing gap accurately, for example, down to a fraction of a millimeter by means of the ejection element. Over the depth or length of the thread formation also a maximum adjustment for the rotatable ejection element and the Schließspalteinstellung can be specified. As a rule, such an adjustment range is for example several millimeters. In particular 3 mm to over 6 mm. The closing gap can be, for example, 1 mm to more than 3 mm, in particular about 1.5 millimeters.

The invention contemplated that the ejection element is movable by rotation about its longitudinal axis together with the ejection element rotatably attached magnetic means against a receptacle in the direction of the longitudinal axis of the ejection element. Thus, a predetermined distance can be maintained constant in the closed state between the magnetic part and the metallic counterpart despite adjustment of a closing gap. Because by the common twisting a projection of the ejection element with respect to the corresponding magnetic means is maintained. The closing gap is composed, for example, of a projection of the ejection element with respect to the magnet means mounted thereon in a rotationally fixed manner and a component which is variably adjustable by rotation, which component is determined by the respective position of the respective magnet means, eg the metallic counterpart. If, for example, by turning the ejection element rotatably mounted therein magnet means moves outward, so that this example, a millimeter on the front of the carcass, and is in the closed position, the ejector 1.5 millimeters on the magnetic means over, then the resulting closing gap made up of these two proportions totaling 2.5 millimeters, Thus, a per se constant projection of the ejection element and a distance of a reference edge of the magnetic means to the front of the relevant furniture part or the furniture body.

Preferably, the receptacle is designed as a plug-in part, which can be used on the furniture body or movable furniture parts. The receptacle, in which the ejection element is movable with the magnet means, is designed in particular as a plug-in sleeve or the like and can be introduced or exchanged in a simple manner. For this purpose, only a depression for receiving the male part is provided. In particular, the male is externally cylindrical and can be inserted into a cylindrical bore in the furniture body or movable furniture part. This simplifies the manufacture and assembly of the device.

It is further proposed that the ejection element is designed so that in the installed state of the device, the setting of the closing gap is possible without tools. Thus, at any time a desired closing gap can be set, for example by hand by a person. This is particularly advantageous for a subsequent fine adjustment on the assembled furniture. In particular, only comparatively small adjustment forces for rotating the ejection element are necessary, which can be applied easily by hand or without tools.

In a preferred embodiment of the subject invention guide means are provided, with which the ejection means for releasing from the locking position by an at least necessary Eindrückweg are movable, which is comparatively small to a subsequently zurücklegbaren maximum ejection path of the ejection means. This allows a particularly user-friendly opening or ejecting the movable furniture part can be realized. In particular, can be solved by a comparatively short or slight impressions on the movable furniture part, the touch-latch latch and the movable furniture part moves automatically so far that then possibly even more remote areas of the open movable furniture part can be accessed immediately.

Further, it is advantageous that the guide means are designed such that the maximum ejection path is about five times larger, in particular about 10 to 20 times larger than the minimum necessary Eindrückweg. With these relations, a movable furniture part can be quickly and easily released from the closing or locking position by a person and then automatically or automatically pushed away by a desired Ausschiebeweg or Ausschwenkwinkel from the closed position. Thus, in particular the ease of use for the equipped with the proposed device furniture is further increased.

In a preferred embodiment of the subject invention, the guide means comprise at least one stop element which is coupled to the axial movement of the ejection element and abuts a counter-stop to limit the ejection movement. Thus, the ejection movement, in which a not inconsiderable impact energy is generated, selectively and without adverse wear or damage to components intercepted or possibly cushioned. For example, abutment surfaces on the stop element and / or on the counter-stop may be suitably buffered or damped. In particular, several and in particular two opposite to Längsverschiebeachse stop knobs can be provided. The stop nubs may be formed projecting example on the ejection element or on a connected thereto component and each slide in a guide groove for guiding the ejection element in the reciprocating motion of the ejection element along. The guide grooves can be formed in particular in a housing for the touch-latch assembly or for the ejection element, are housed within the movable parts of the touch-latch assembly.

Further, it is advantageous if the guide means comprise in addition to the stop element at least one locking element which is coupled to the movement of the ejection element and movable relative to the at least one stop element and cooperates with a control contour so that the ejection element in the locking position can be latched and unlocked again , Thus, a separation in the function of the motion control can take place, wherein the abutment function as explained above are separated from the latching or movement control by the latching elements. This can be compared to previous touch-latch arrangements in which regularly wear and tear caused by, in particular, the striking of, for example, locking lugs at the end of an ejection movement can be avoided. Because with the proposed arrangement no abutment loads on the locking element occur because the attack or impact occurs at the end of the ejection over the stop elements, possibly occurring at the stop elements wear is unproblematic for the stop function or they take no control tasks. In accordance with the invention, exact control of the movement of the ejection element or relatively small indentation paths on the ejection element can thus be realized since, in particular, the switching radii or locking or control edges on the detent elements do not wear off or round off over time and therefore a permanently exact control is possible ,

The latching element preferably comprises two latching nubs, which are rotatable together about the longitudinal axis of the ejection element.

It is also advantageous if the locking element and the control contour are matched to one another so that their interaction during operation of the device almost no wear on the locking element and / or the control contour takes place, in particular tangential to the longitudinal axis of the ejection element acting on the locking knobs forces almost none Cause wear. With this measure, the permanent and accurate control of the movement of the ejection element can be further improved.

The invention also relates to a piece of furniture with a furniture part which is movable relative to a fixed furniture body, in particular with a door, flap or drawer, which is provided with one of the aforementioned devices. This can be the above-mentioned advantages for a corresponding furniture realize.

figure description

Figur 1

ein Möbel in perspektivischer Ansicht schräg von oben mit einer erfindungsgemäßen Vorrichtung,

Figur 2

ein Möbel mit einer alternativen Ausgestaltung der erfindungsgemäßen Vorrichtung,

Figur 3

eine perspektivische Ansicht auf den oberen Teil des Möbels aus Figur 1, teilweise freigeschnitten und unter Weglassung einer das Möbel nach oben abschließenden Deckplatte in Schließstellung einer Möbeltüre,

Figur 4

eine Explosionsdarstellung der erfindungsgemäßen Vorrichtung aus Figur 1,

Figur 5

die Vorrichtung gemäß Figur 4 im zusammengebauten Zustand in perspektivischer Ansicht von der Seite,

Figur 6a und 6b

die Vorrichtung gemäß Figur 5 unter Weglassung eines Bauteilabschnittes in einer Anordnung, die sich in einem Schließzustand im eingebauten Zustand der Vorrichtung einstellt,

Figur 7a und 7b

die Anordnung gemäß Figur 5 in Draufsicht und in geschnittener Draufsicht,

Figur 8a und 8b

die Ansichten gemäß Figur 7a und 7b in einem Schließzustand,

Figur 9a und 9b

die Vorrichtung gemäß Figur 8a und 8b unter Ausbildung eines verringerten Schließspalts,

Figur 10a und 10b

die Ansichten gemäß Figur 9a und 9b in einer geöffneten Position und

Figur 11a und 11b

die Ansichten gemäß Figur 10a und 10b um 90° gedreht.

In the drawing figures, the invention will be explained in more detail by specifying further features and advantages. In detail shows:

FIG. 1

a furniture in perspective view obliquely from above with a device according to the invention,

FIG. 2

a piece of furniture with an alternative embodiment of the device according to the invention,

FIG. 3

a perspective view of the upper part of the furniture FIG. 1 partially cut open and omitting a cover plate closing off the furniture in the closed position of a furniture door,

FIG. 4

an exploded view of the device according to the invention FIG. 1 .

FIG. 5

the device according to FIG. 4 in assembled condition in perspective view from the side,

FIGS. 6a and 6b

the device according to FIG. 5 omitting a component section in an arrangement that is set in a closed state when the device is installed,

FIGS. 7a and 7b

the arrangement according to FIG. 5 in plan view and in sectioned plan view,

FIGS. 8a and 8b

the views according to FIGS. 7a and 7b in a closed state,

FIGS. 9a and 9b

the device according to FIGS. 8a and 8b forming a reduced closing gap,

FIGS. 10a and 10b

the views according to FIGS. 9a and 9b in an open position and

FIGS. 11a and 11b

the views according to FIGS. 10a and 10b turned by 90 degrees.

FIGS. 1 and 2 shows in each case in perspective obliquely from the front a piece of furniture 1 with a furniture body 2 and an over it Hinged parts 4 pivoting door 3. The door 3 is in the Figures 1 and 2 shown in their almost fully open position.

The furniture 1 has an inventively equipped touch-latch assembly 5, which is shown in the extended or unlocked state and has explained in more detail below magnet units. The touch-latch arrangement 5 according to FIG. 1 is housed in a cabinet side wall in a corresponding opening, whereas the touch-latch arrangement 5 according to FIG FIG. 2 is attached to an inner wall of a furniture body side part, eg glued, screwed or clipped onto a mounting plate. In accordance with the positioning of the touch-latch arrangement 5, a permanent magnet 6 or a magnet sleeve 6a in the door 3 is sunk to corresponding positions on an inner side of the furniture door 3.

FIG. 3 shows the arrangement according to FIG. 1 schematized in perspective view obliquely from above, wherein a ceiling part of the furniture body 2 is not executed. The door 3 is shown in its closed position, whereby a closing gap S is formed between the inside 3a and a furniture body front 2a. The permanent magnet 6 with magnetic sleeve 6a, which is indicated by dashed lines on the door 3, is in contact with parts of the touch-latch assembly 5, which is also highly schematic cut-free in the body 2 can be seen. Not shown in FIG. 3 is a lower section of the furniture 1.

FIG. 4 shows in exploded view, the individual components of the touch-latch assembly 5 according to the invention with the magnetic means, wherein the permanent magnet 6 can be accommodated in the magnet sleeve 6a, which has beipsielsweise circumferential ribs 6b, for clamping example in one corresponding hole in the door 3. The permanent magnet 6 is also clamped in the magnet sleeve 6a or may be glued or screwed therein. Magnetically, a substantially cylindrical metal sleeve 7 interacts with the permanent magnet 6 and has an external thread (not shown) on the outside thereof. Passing through the metal sleeve 7 in assembly, a plunger 8 is accommodated with a plunger head 9 and a plunger base 10 adjoining it via a shoulder. The plunger head 9 and the plunger base 10 each have approximately parallel opposite flat sections 9a and 10a or over opposite rounded sections 9b and 10b. In the metal sleeve 7, an annular disc 11 is also frictionally inserted with a matched to the outer contour of the plunger base 10 inner contour, which provides with its inside a guide for the axially displaceable therein slide base 10. After the rear of the metal sleeve 7, a guide sleeve 12 is provided with outwardly projecting thereon oppositely formed stop knobs 13, wherein the stop knobs 13 are positioned at the front end of the guide sleeve 12. In a middle and paragraph slightly recessed portion of the guide sleeve 12, a grid ring 14 is peripherally clipped to the guide sleeve 12. The raster ring 14 is designed as a partial ring, for example circumferentially by about 300 degrees of angle or interrupted by a gap, and freely rotatable about a guide groove or corresponding guide contours outside about the guide sleeve 12 movable. On grid ring 14 opposite shaped trapezoidal knobs 15 are provided with relatively sharp edges. The guide sleeve 12 has an inner bore 12a with an internal thread into which the plunger base 10 can be screwed. For this purpose, the tappet foot 10 has a corresponding external thread on the outer sections 10b.

The bolted together component with the plunger 8 and the guide sleeve 12 with grid ring 14 is longitudinally displaceable relative to other components of the touch-latch assembly 5 and accommodated in a plug-in part 16. In a front portion of the male member 16, a circumferentially protruding flange ring 16a is formed. The flange ring 16a serves, in particular, to define a position of the insertion part 16 which is completely inserted in a bore and in which a back side of the flange ring 16a abuts in particular, for example, on the furniture body front side 2a. In the front part of the male part 16 on the inner wall, an internal thread 16b is formed, which is matched to the external thread of the metal sleeve 7 and via which the metal sleeve 7 in the male member 16 and can be screwed. At the front portion of the male part 16 is connected to the rear over a small paragraph, a guide portion 16c, in which opposite longitudinal slots 17a, 17b are present. Outerly pushed over the guide section 16c, a housing bottom 18 can be fitted on the shoulder of the front section of the insertion part 16.

For annular positioning edges 23a and 23b of a control cam or the control contour can function properly cooperate or for correct positioning between plug 16 and guide portion 16c and housing bottom 18 are formed on the guide portion 16c two opposite longitudinal ribs 19a and 19b, which in correspondingly configured longitudinal grooves 20a and 20b in the inner wall of the housing bottom 18 suitably come into contact. In formed by the male part 16 and the housing bottom 18 in the assembled state cavity a suitably tuned coil spring 21 is housed. The spiral spring 21 is clamped with assembled touch-latch assembly 5 inside between a base of the housing bottom 18 and an annular shoulder 12a at the rear end of the guide sleeve 12 at.

FIG. 5 shows the arrangement with the assembled components according to FIG. 4 with ejected ram 8, wherein the metal sleeve 7 is not completely screwed into the front region of the male part 16 and thus projects slightly beyond the flange 16a forward. As a fixed counter stop for the plunger movement forward in the direction of displacement of the plunger 8 is the fixed position in the metal sleeve 7 accommodated annular disc 11, on which the guide sleeve 12 abuts with an end face 12a and 12a stop studs and thus the longitudinally displaceable movement of the plunger 8 after limited at the front.

So that the plug-in part 16 with the housing bottom 18 arranged thereon holds firmly or securely in a corresponding receiving bore in the body 2, a plurality of longitudinally extending ribs 22 are provided on the outside of the plug-in part 16 or on the housing bottom 18. The external shape of the male part 16 or the housing bottom 18 can also be designed differently, e.g. polygonal, wherein the corresponding receiving recess in the furniture is matched accordingly match.

The metal sleeve 7 consists in particular of a metallic or magnetizable or ferromagnetic material and interacts magnetically attractively with the permanent magnet 6.

FIGS. 6a and 6b shows the arrangement according to FIG. 5 without furniture 1 as it results in the installed state with omission of parts of the housing bottom 18. From the housing bottom 18, only an inner provided guide portion 18a is shown with the annular grid edge 23a. In the arrangement according to FIGS. 6a and 6b is the permanent magnet 6 in its magnetic sleeve 6a in the closed position, wherein the front end of the plunger 8 abuts the permanent magnet 6. Here is the plunger. 8 against the spring force of the relatively stronger pushed-out state of the plunger 8 compressed coil spring 21 in the plug 16 or in the housing bottom 18 retracted. Under the action of the coil spring 21, the guide sleeve 12 is pressed with the knobs 15 forward against the annular edge raster edge 23 b on the guide portion 16 c. The control contour comprises in particular the longitudinal slots 17a, 17b and the annular grid edges 23a and 23b, which also have latching recesses for the knobs 15, for example the latching recess 24. The two trapezoidal knobs 15 come in the state according to Figure 6a, 6b each in a nose-shaped or serrated detent recess 24 in the annular grid edge 23b. Under the action of force of the coil spring 21 is thus also the plunger 8 in its retracted position according to FIGS. 6a and 6b locked. By magnetic attraction between the permanent magnet 6 and the metal sleeve 7, the door 3, not shown, in the closed position relative to the furniture body 2 is held in the longitudinal slots 17a, 17b shifted back and circumferentially staggered to the nubs. In this case, the closing gap S is formed according to FIG. 3 respectively. FIG. 6b out.

To solve the lock according to Figure 6a, 6b is achieved according to known touch-latch arrangements by pressing on the door 3 in the direction of furniture body 2, the lock. In this case, the plunger 8 is slightly in the direction P1 according to FIG. 6b emotional. In this way, against the spring force of the coil spring 21 and the guide sleeve 12 and thus also the stop knobs 13 in the direction P1 in the longitudinal slots 17a, 17b moves. The locking knobs or knobs 15 are released from their latching and come here with their beveled bottom in abutment against the annular raster edge 23a, which has at this point a corresponding slope to the rear of a serrated depression contour and thus a rotation of the raster ring 14 so far enforces until the nubs 15 each at a stop position on the reach serrated bevel in the annular grid edge 23a and there are no longer movable in the direction of P1. Now, the indenting force is released from the outside and thus pressed under the spring force of the coil spring 21 and the grid ring 14 in the direction P2 and the nubs 15 slide with their front bevel along a corresponding bevel on the annular edge raster 23b in the opposite longitudinal slots 17a, 17b opens and thus allows a forward displacement of the guide sleeve 12 with the stop knobs 13, wherein the grid ring 14 and the knobs 15 have been rotated so that they are in line with the stop nubs 13 and also in the longitudinal slots forward in Direction P2 are moved.

In this case, the plunger 8 moves in accordance with arrow P2 in Figure 7a, 7b in front and presses the permanent magnet 6 and thus the door 3 away from the furniture body 2 forward. In this case, the metal sleeve 7 passes from the vicinity or the magnetic effective range of the permanent magnet 6, so that the door 3 after the permanent magnet 6 comes out of contact with the extended plunger by itself still slightly pivots (see Figure 7a, 7b ). When closing the door 3 of the permanent magnet 6 is moved to the extended ram 8 and moved under the action of force of the plunger 8 to the rear in the direction of P1. The stop knobs 13 or the trapezoidal knobs 15 slide back along the longitudinal slots 17a, 17b until the knobs 15 come to rest on the rear ring raster edge 23a and are guided backwards on a bevel until they reach a stop edge by turning the grid ring 14 get into a stop position and from there with release of the pressing force or simultaneous pressing of the coil spring 21 forward in the position according to Figure 6a, 6b to step. Thus, the touch-latch assembly is again in its locked or closed position.

In the FIGS. 7b to 11b the corresponding positions are shown with respective sectional arrangement. The Figures 8a, 8b show the arrangement according to the Figures 6a and 6b However, with fully illustrated housing bottom 18th In the FIGS. 9a to 11b a corresponding arrangement is shown at fully screwed in the front portion of the male 16 metal sleeve 7.

The closing gap S (see FIG. 8b and 9b ) The supernatant of the plunger 8 via the metal sleeve 7 and the thickness of the flange 16a. In contrast, the closing gap S is set according to FIG. 6b additionally from the supernatant of the metal sleeve 7 relative to the male member 16 together. By turning the plunger 8, in particular by hand or without tools by a person, the metal sleeve 7, which is rotatably connected via the annular disk 11 with the plunger 8, in the plug 16 a or be unscrewed. This allows the closing gap S to increase or decrease accordingly. FIG. 9b shows, for example, a comparatively small or minimally set closing gap S. Advantageously, by the arrangement according to the invention in the closed state of the door 3 is always a constant distance S '(see FIG. 8b ) between the permanent magnet 6 and the stop surface 9c and a magnetic central surface 7a (see FIG. 4 ) of the metal sleeve 7 is implemented, which in particular also no variability of Magnetanziehkraft or triggering or Wegdrückkraft to release the closing state or at the beginning of Ausschubbwegung the plunger 8 is connected.

LIST OF REFERENCE NUMBERS

1

Furniture

2

furniture body

2a

Furniture carcass Front

3

door

3a

inside

4

hinge part

5

Touch-latch arrangement

6

permanent magnet

6a

magnet sleeve

6b

rib

7

metal sleeve

7a

magnetic surface

8th

tappet

9

ram head

9a

flat section

9b

section

9c

stop surface

10

Stößelfuß

10a

flat section

10b

section

11

washer

12

guide sleeve

12a

ring surface

13

stop knobs

14

location ring

15

burl

16

plug

16a

flange

16b

inner thread

16c

guide section

17a

longitudinal slot

17b

longitudinal slot

18

caseback

18a

guide section

19a

longitudinal rib

19b

longitudinal rib

20a

longitudinal groove

20b

longitudinal groove

21

spiral spring

22

rib

23a

Ring louvre edge

23b

Ring louvre edge

24

latching depression

Claims (15)

1. Device for opening and/or closing a piece of furniture (1), wherein the piece of furniture (1) has a furniture part (3), which can be moved in relation to a fixed furniture body (2), with magnetic means (6, 7), with which, in the installed state of the device on the piece of furniture (1), in the closure state of the movable furniture part (3), the two furniture parts can be held in position with respect to one another with the formation of a closing gap between the furniture body (2) and movable furniture part (3), and with ejection means (8), which can be released from an inserted locking position in a closure state of the piece of furniture by pressing on the movable furniture part (3) counter to an opening direction of the furniture part (3) and can be pushed out with prestressing, so the movable furniture part (3) is pushed away by the ejection means (8), in particular with a so-called touch-latch arrangement, and the magnetic means comprise a first unit with a magnetic part (6) and a second unit with a metallic counter-piece (7), wherein one unit can be arranged on the movable furniture part (3) and the other unit can be arranged on the furniture body (2), and wherein the ejection means comprise a non-magnetic ejection element (8) engaging through the magnetic means (7) and arranged adjacent to the unit of the magnetic means (6, 7), which can be arranged on the furniture body, which ejection element is longitudinally displaceable in relation to this unit of the magnetic means (7), characterised in that the ejection means (8) is configured in such a way that in the installed state of the device, by action on the ejection element (8), the closing gap can be adjusted without additional adjusting means, in that the ejection element can be moved by rotation about its longitudinal axis together with the unit of the magnetic means (7) non-rotatably provided and arranged adjacently on the ejection element (8) in relation to a receiver (16) in the direction of the longitudinal axis of the ejection element (8).
2. Device according to claim 1, characterised in that the magnetic means (6, 7) are configured in such a way that in the closure state of the movable furniture part (3), the magnetic part (6) is not in contact with the metallic counter-piece (7) when the movable furniture part (3) is held in the closure state by a magnetic holding force.
3. Device according to claim 1 or claim 2, characterised in that the ejection element (8) has a stop face (9c) and wherein the adjacently arranged unit of the magnetic means (7) has a magnetic face (7a) arranged spaced apart from the stop face (9c), and in that a setting mechanism is coupled to the ejection element (8) and the adjacently arranged unit of the magnetic means (7) so that the ejection element (8) and the adjacently arranged unit of the magnetic means (7) can be adjusted simultaneously by means of the setting mechanism in such a way that the spacing S' between the stop face (9c) and the magnetic face (7a) is substantially the same in the various adjustment positions.
4. Device according to any one of the preceding claims, characterised in that the two units of the magnetic means (6, 7), in the closure state of the movable furniture part (3), are spaced apart from one another by a material-free region.
5. Device according to any one of the preceding claims, characterised in that the two units of the magnetic means (6, 7), in the closure state of the movable furniture part (3), are spaced apart from one another by the ejection element (8).
6. Device according to any one of the preceding claims, characterised in that the ejection element (8) is rotatable about its longitudinal axis such that, in the installed state of the device, the closing gap can be adjusted by rotation of the ejection element (8) about its longitudinal axis.
7. Device according to any one of the preceding claims, characterised in that the receiver is configured as an insertion part (16), which can be inserted on the furniture body (2) or movable furniture part (3).
8. Device according to any one of the preceding claims, characterised in that the ejection element (8) is configured in such a way that, in the installed state of the device, it is possible to adjust the closing gap without tools.
9. Device according to any one of the preceding claims, characterised in that guide means are present, with which the ejection means (8), for release from the locking position, can be moved by a minimum necessary push-in path, which is comparatively small with respect to a subsequent opposed coverable maximum ejection path of the ejection means (8).
10. Device according to claim 9, characterised in that the guide means are configured in such a way that the maximum ejection path is over about 5 times greater, in particular over about 10 to 20 times greater, than the minimum necessary push-in path.
11. Device according to either of claims 9 or 10, characterised in that the guide means comprise at least one stop element (13), which is coupled to the movement of the ejection element (8) and, to limit the ejection movement of the ejection element (8), strikes against a counter-stop.
12. Device according to claim 11, characterised in that the guide means, in addition to the stop element (13), comprise at least one latching element (15), which is coupled to the movement of the ejection element (8) and is movable in relation to the at least one stop element (13) and cooperates with a control contour (23a, 23b, 24) in such a way that the ejection element (8) can be latched in the locking position and unlatched again.
13. Device according to claim 12, characterised in that the latching element comprises two latching knobs (15) that are arranged to be rotatable together about the longitudinal axis of the ejection element.
14. Device according to either of claims 12 or 13, characterised in that the latching element (15) and the control contour (23a, 23b, 24) are matched to one another in such a way that upon their interaction during operation of the device, virtually no wear takes place on the latching element (15) and/or the control contour (23a, 23b, 24), in particular forces acting tangentially to the longitudinal axis of the ejection element (8) on the latching knobs (15) cause virtually no wear.
15. Piece of furniture (1) with a furniture part, which can be moved relative to a fixed furniture body (2), in particular with a door (3), flap or drawer, with a device according to any one of the preceding claims.

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