EP2054573A1

EP2054573A1 - Opening device for furniture parts which are movable relative to one another

Info

Publication number: EP2054573A1
Application number: EP07786071A
Authority: EP
Inventors: Markus Herper; Boris Krüdener
Original assignee: Mepla Werke Lautenschlaeger GmbH and Co KG
Current assignee: Grass GmbH Deutschland
Priority date: 2006-08-24
Filing date: 2007-07-14
Publication date: 2009-05-06
Anticipated expiration: 2027-07-14
Also published as: WO2008022673A1; US20110131884A1; US8282175B2; EP2054573B1; DE502007004870D1; ATE479004T1

Abstract

An opening device (10) for furniture parts which are movable relative to one another, such as door wings (12), flaps and the like coupled pivotably to a furniture body, with an elongate ejector ram (30) which is mounted in a longitudinally displaceable manner in a housing (28) which can be fastened to one of the furniture parts which are movable relative to one another. The ejector ram is pretensioned at its one end by means of a spring (32) into a position in which it protrudes out of the housing (28) in the direction of the other furniture part in each case and can be pushed back into the interior of the housing counter to the pretensioning. The device has a locking device which locks the ejector ram (30) in the position in which it is retracted in the housing (28), and can be unlocked by manipulation by means of a user. A tensioning device is provided in the housing (28), the tensioning device forcibly displacing the ejector ram (30), when the movable furniture part (12) is completely opened, into the locking position in which said ram is retracted into the housing (28), said tensioning device converting the opening movement of the movable furniture part (12) in the interior of the housing via a tensioning member (33), which acts at its one end which is guided out of the housing (28) on the movable furniture part, into a movement pulling the ejector ram (30) back into the retracted position.

Description

Opening device for relatively movable furniture parts

The invention relates to an opening device for relatively movable furniture parts such as hinged to a furniture carcass hinged door, flaps u. Like. With an elongated, longitudinally displaceable mounted in or on one of the relatively movable furniture parts housing mounted ejector plunger, which is biased by a spring with its one end in a protruding from the housing toward each other furniture part position and against the bias into the housing interior zurückdrängbar wherein a locking device locking the ejector plunger in the position retracted in the housing and unlockable by manipulation by a user is provided.

For hinged on the body of cabinets door, flaps u. Like. Are both separately on the body or the door to be mounted as well as in the pivoting movement enabling hinges integrated locking fittings

- For example, snaps - has been developed, which pull the door resiliently in the closed position during the closing of a door leaf when approaching the closed position and hold in the closed position. In order to avoid impact noise and vibrations of the furniture or to reduce, damping devices for the final closing operation of the door wings have been developed in recent times, which are ebenfaiis separately on the body or the door attachable or can be integrated into the hinges.

In an effort to avoid the need for handle fittings required for opening and closing the door leaves or flaps, so-called touch-latch fittings have been developed which, in addition to a locking function for the closed door leaf, have an additional Chen opening function are provided, which allows to unlock the door located in the door closed position by an additional force exerted in the direction of the body interior pressure and then grant it by an integrated spring arrangement movement in the opening direction, so that the door is a short Angle amount from the cabinet body lifts and then the back of the door leaf behind the edge and behind the door can - even without the presence of a handle fitting - can be opened. Such touch-latch fittings can also be designed as separate fittings mountable in the region of the body muzzle or as fittings integrated in the hinges (eg DE 20 2004 019 238.1). A problem occurs when a piece of furniture in approaching the pivoting furniture part to the closed position - if possible even muted - closing function and additionally a function of touch-latch fittings corresponding opening function should be implemented, because then the respective closing - or opening function causing spring voltages act in the opposite direction sense. The kinematic structure of the touch-latch devices also requires that the standing in the closed position door must still have a certain amount of movement in the closing direction in order to unlock the door from the onset of opening function from the closed position can. The thereby necessarily required gap between the back of the door leaf and the end faces of the corpus walls is undesirable in many cases, both for visual / aesthetic as well as practical reasons.

The invention is based on the object to provide an opening device for pivotally hinged to a body furniture parts, which makes it possible such a complete, i. until it abuts its rear side against the end edges of a cabinet body, and held in the closed position by a spring-biased closing mechanism, e.g. a door leaf, without the attachment of handle fittings for the exercise of effective, acting in the opening direction forces after actuation by the user to pivot automatically by a certain angle in the opening direction.

Starting from an opening device of the type mentioned above, this object is achieved in that in the housing a ejector plunger when fully opening the movable furniture part inevitably provided in the retracted into the housing locking position clamping device is provided which converts the opening movement of the movable furniture part via a with his one led out of the housing end on the movable furniture part clamping device in Gehäuseinnem in a retraction movement of the ejector plunger in the retracted locked position. By using such an additional clamping device, which converts the major part of the opening movement of the pivotable furniture part into a relatively short-stroke displacement of the ejector ram, it is achieved that the movable furniture part can be moved to the completely closed position during the closing operation without a closing movement at the end resilient counterpressure must be overcome, as is required in the known touch-latch fittings. Also required for the unlocking of touch-latch fittings from the closed position, the actuating travel available-making gap between the movable furniture part, eg the back of a door leaf and the cabinet body is not required.

In a preferred embodiment of the invention, the clamping device has a in the housing about a perpendicular to the longitudinal central axis of the ejector ram pivotally mounted double-armed lever member whose one lever arm in a free end portion in driving connection with the gehinder in the Gehinder- slidably supported Erten region of the ejector ram, while at the end of the another lever arm, an elongate rod member is coupled, whose out of the door leaf-facing housing led out free end with means for tension and / or pressure-transmitting

Attachment is provided on the inside of the door leaf.

The entrainment of the first lever arm of the lever member with the ejector ram is expedient kinematically designed so that the lever arm pivotable and in addition by a predetermined amount parallel to

Longitudinal axis of the ejector plunger is slidably coupled to the ejector.

In this case, the lever component is preferably formed by two mutually spaced parallel double-armed levers, wherein the clear distance between the ejector ram side lever arms of the double-armed lever substantially equal to or only slightly larger than the outer diameter of the pitcher is measured.

As a result, the design can then be made so that the driving connection of the end regions of the ejector-side lever arms of the levers in each case has an associated longitudinal groove predetermined length in the opposite outer side in Auswerferstößel engaging pins. This driving connection thus represents, as it were, a simple link / groove connection, which realizes the pivotable and longitudinally displaceable coupling of the lever component to the ejector ram.

The lever member is formed in a preferred embodiment of the invention in addition to its pivotal mounting by a predetermined amount at right angles to the ejector longitudinal axis longitudinal axis in the height direction displaceable to compensate for the pivoting component of the lever component movement component perpendicular to the ejector longitudinal axis by a displacement of the lever member in the opposite direction to be able to.

In this case, the configuration is then advantageously so made that the pivot axis of the lever member is formed by two aligned, each of the opposite outer sides of the lever protruding pin, which in each case an associated, extending in the height direction by the predetermined amount in the groove Inner surfaces of the opposite walls of the housing protrude.

The bar component which transmits the opening movement of the door leaf to the lever component is then advantageously also pivotably coupled and displaceable by a predetermined amount in the direction of the longitudinal central axis of the rod component on the second lever arm. This is possible in a particularly simple manner in that the rod component has in its housing-inner end region a loop-like elongated eye closed on both sides, which is penetrated by a bolt held in the end regions of the second lever arms of the levers of the lever component.

The other - led out of the housing - end of the rod member is then expediently about a perpendicular and perpendicular to the rod component longitudinal axis extending pivotally on a on the inside of the movable furniture part, ie the door leaf, attachable mounting bracket articulated.

The blocking the ejector ram in the retracted position in the housing, unlocked by manipulation by a user locking device expediently a substantially perpendicular to the displacement direction of the ejector ram movably held in the housing, at its housing inner end in latching engagement with a provided in the ejector ram locking recess engageable pawl , wherein the positioning of the latching depression in the ejector ram is positioned so that the pawl in the ins

Housing retracted position of the ejector ram is aligned with the locking recess. The pawl is preferably biased in resilient latching engagement with the detent recess.

By suitable means for remote release of the pawl from the locking engagement with the detent recess of the ejector plunger is then unlocked from its retracted into the housing position so that it is guided due to the force acting on him bias of the associated spring in the projecting position from the housing, whereby the initial Opening movement of the door is triggered. The means for remote unlocking of the pawl, for example, be formed by cable ties or coupling members connected to the pawl operating buttons or levers or alternatively also pressure-sensitive actuating surfaces of countersunk electrical switches used in the door or cabinet body.

In a modified embodiment of the opening device according to the invention, the embodiment can also be made such that in the housing a double-armed lever member is pivotally mounted with two substantially pointing in opposite directions lever arms, that arranged in the end region of a lever arm of the biasing ejector ram and a the end the lever arm is provided in the locking position of the locking device which locks the lever element associated with the retracted position of the ejector plunger, and in that the tensioning and locking device is coupled to the end region of the other lever arm of the lever component. With regard to a possible low overall height of the opening device, the embodiment is preferably made such that the housing is dimensioned in the longitudinal direction of the pivot axis of the lever member so that the clear distance between the substantially planar housing cover walls receiving the lever member is approximately equal to the thickness of the lever member in Area of the pivot axis corresponds, wherein the housing cover walls along its ejector ram side edges is at least partially closed by a low elongated side wall with a passage opening for the ejector plunger. In this case, then offers the possibility of mounting the housing on the inside of the top wall or the bottom of the cabinet body due to the low Abstand the housing top walls.

The ejector ram then expediently has the form of a flat, slidably guided between the insides of the housing top walls Plattenbau- part, which has a planar pressure surface on the front wall side, which projects in the retracted position of the ejector plunger into the housing only slightly above the housing side wall in the passage opening.

The locking member of the locking device is mounted in an advantageous embodiment of the invention as pivotable between the housing cover walls

Swivel lever formed with a provided at its the swivel bearing side end opposite free end locking projection which engages in the retracted locking positions the ejector ram associated end of the lever arm of the lever member and the lever member so against the bias acting on it in the retracted

Lock position fixed.

It is expedient if the pivot lever is coupled in a gear with a distance from the pivot lever release unit, which has a resiliently in a slightly protruding over the side wall of the housing biased DruckstucK whose generated upon exertion of pressure in the direction of the housing interior slide-in over the geared coupling is converted into a pivoting of the pivot lever in the sense of a release of the locked end of the associated lever arm. At the end opposite the pivot bearing end of the pivot lever is advantageously an elongated pull / push member, arranged, the other end is connected to a lever arm of a pivotable angle lever whose other lever arm is coupled to the pressure piece.

The ejector plunger is hinged in an appropriate development about an offset to its pressure surface into the housing interior axis pivotally mounted on the associated lever arm of the lever member and - preferably additionally arranged by a predetermined amount substantially parallel to the pressure surface displaceable on the lever arm.

The ejector plunger may have the shape of a flat body bordering the housing cover walls on both sides in a planar manner whose thickness measured between the opposing planar surfaces corresponds approximately to the clear distance of the inner surface of the housing cover walls.

The coupled with the locking device clamping and locking device expediently has a on the inner side of the movable furniture part on the one hand and a slidably mounted inside the housing flat slide coupled rod member as a clamping member, wherein the slide with a substantially straight over the greater part of their length extending backdrop-like Control groove is provided, but at the outer front end of the carcass in a short substantially perpendicular to the rectilinear

In the control groove engages a provided on a pivotally mounted in the housing flat sector-shaped control disc control projection provided, which is in the closed position of the movable furniture part in the transverse end portion of the control groove and the opening of the movable furniture part by the Stabe- bauteii on the Slider transmitted movement is displaced under pivoting of the control disk in the rectilinear portion of the cam and thus releases a displacement of the hitherto held by the engagement of the control projection in the direction perpendicular to the rectilinear cam portion extending Steuerutab- slide in the direction of the inside of the carcass. The rod member is pivotally coupled in an advantageous embodiment and displaceable in a predetermined extent in the direction of displacement of the slider on the slide.

In the arrangement of the opening device formed in the manner according to the invention on a cabinet with pivoting cabinet body hinged door the housing of the opening device is preferably arranged with one of the housing cover walls on the inner surface of the upper top wall or - alternatively - the bottom of the cabinet body fitting in the cabinet corpus is that the pressure surface of the retracted position in the retracted position only slightly protruding from the side wall of the housing ejector ram lies substantially against the inner surface of the standing in the closed position of the closed position door leaf.

The invention is explained in more detail in the following description in conjunction with the drawing, in which: FIG.

1 shows a side view of a partial section of the supporting wall of a cabinet body, on which a section of a door leaf in the closed position is pivotably mounted by means of a hinge, below the hinge a first embodiment of an opening device according to the invention mounted on the supporting wall being shown schematically;

Fig. 2 is a sectional view, seen in the direction of the arrows

2-2 in Fig. 1;

FIG. 3 shows a view corresponding to FIG. 1, in which the door leaf is shown in a position pivoted in the opening direction by approximately 10 ° with respect to the closing position;

Fig. 4 is a sectional view, seen in the direction of the arrows

4-4 in Fig. 3; 5 shows a view corresponding to FIGS. 1 and 3, in which the door leaf is shown in the position pivoted in the opening direction by 90 ° with respect to the closed position;

Fig. 6 is a sectional view, seen in the direction of the arrows

6-6 in Fig. 5;

7a shows the opening device shown schematically in FIGS. 1 to 6 in an isometric view, in which its functional components are shown in the position corresponding to the closed position according to FIGS. 1 and 2;

Figg. 7b shows a representation corresponding to FIG. 7a of the functional components in the closed position without a housing;

FIG. 8a shows an isometric view of the opening device corresponding to FIG. 7a in the partially opened position of its functional components corresponding to FIGS. 3 and 4;

FIG. 8b shows a representation corresponding to FIG. 8a of the functional components which are in the partially open position and without a housing; FIG.

Fig. 9a a Figs. 7a and 8a corresponding view of

Opening device in the Figures 5 and 6 corresponding opening position of their functional components;

FIG. 9b is a representation corresponding to FIG. 9a of the functional components in the open position without housing; FIG.

10 is an isometric view of the upper corner of the

Side wall of a cabinet body, on which one in partial hinged open position shown door is hinged, and one of the inner surface of the upper cabinet top wall, not shown mountable second embodiment of an opening device formed in the manner according to the invention;

Fig. 11 is a plan view of the opening device seen in

Direction of the arrow 11 in Figure 10, wherein the door leaf in the closed position and additionally in four other intermediate and the open position is shown in phantom;

FIG. 12 shows an exploded view of the opening device shown in FIGS. 10 and 11 in an isometric view; FIG.

13a to 13f in the viewing direction of FIG. 11, but correspondingly enlarged in scale, in which the functional parts of the opening device are respectively represented in the different positions of the door leaf, schematically indicated in FIG. 11; and

FIGS. 14a to 14f show views corresponding to FIGS. 13a to 13f in the opposite direction from the bottom to the top.

1 to 3, a section of a door leaf 12 is shown, which in a conventional manner pivotally connected to a - hereinafter referred to as a support wall 14 - side wall of the body of a cabinet is articulated. The pivotable articulation of the door leaf 12 on the support wall 14 by means of conventional hinge hinges, of which in the drawing figures only the door in the upper region with the support wall pivotally coupling, designed as a four-bar hinge 16 hinge is formed while the required, said components in the lower part coupling second hinge is not yet mounted. Shown in this area are only the door-side recess 18 and the mounting hole 20 for the coulter Sewing pot 22 and the support-wall-side mounting holes 24 for the attachment of the elongated support arm 26 formed support wall stop members of the hinge.

Below the hinge 16 is schematically in the inventive

Way trained trained, designated in its entirety by 10 opening device, which is fixed in the door leaf-side region of the support wall 14.

The opening device 10 described in more detail below in conjunction with FIGS. 7a to 9b has a rectangular housing 28 in the illustrated case, from whose door leaf side housing wall the free end of an ejector tappet 30 mounted longitudinally displaceably in the housing can pass. In addition - below the ejector ram 30 - still serving as a tension member rod member 33 led out, the housing outer end is pivotally mounted in a mounted on the inside of the door leaf 12 mounting bracket 34.

The construction and the position of the functional components of the opening device 10 in different pivotal positions of the door leaf 12 relative to the support wall

10 is shown in FIGS. 7a to 9b.

The longitudinally displaceably mounted in the housing 28 ejector plunger 30 is biased by an inserted between its housing end face and the opposite housing inner wall under compressive prestressing coil spring 32 shown in Fig. 8a, pushed out of the housing 28 position. In the area of the ejector tappet facing the upper horizontal wall of the housing 28, a detent recess 38 is provided, which is associated with a locking pawl 40 which displaceably passes through the housing wall and which is retracted into the housing (as shown in FIGS. 7a and 9a) engages the detent recess 38 and locks the ejector plunger 30 against displacement in the extended position. If the pawl 40 is then lifted by suitable manipulation and thus pulled out of the latching recess 38, the pressure biasing of the spring 32 urges the ejector pusher 30 out of the housing. In this case, the first in the illustrated in Figs. 1 and 2 closed position door leaf 12 in the in Figs. 3 and 4 partially open Pivoted position in which the door leaf 12 is so far lifted from the body of the cabinet, that it can be engaged behind and pivoted into the fully open position shown in Figs. 5 and 6.

In the housing 28, a lever member 42 is pivotally mounted, which is formed by two rigidly interconnected double-armed levers 42a, 42b. The end portions of the upper lever arms of the levers 42a, 42 engage around the ejector ram 30 in its opposite regions and are coupled to the ejector ram via a driver link formed by a respective projection 50 engaging the elongated groove 48 in the ejector ram 30. The pivotal mounting of the lever member 42 in the housing 28 is - below the ejector plunger 30 - also by one of the outside of the lever 42 a, 42 b protruding pin 52, which in each case an associated, provided in the height direction in the inside of the wall of the housing 28, as Nut 54 trained bearing mount intervene. In addition to the pivoting of the lever member 42 so this storage also allows a vertical displacement of the lever member 42 in the predetermined by the length of the groove 54 degree.

In the end portions of the lower lever arms of the levers 42a, 42b, the housing inner end of the aforementioned rod member 33 is coupled, which end is formed as a double-sided closed elongated loop-like eyelet 58, 42a of one of the 42b in the end regions of the lower lever arms of the lever held bolt 60 is penetrated. This type of coupling of the rod member 33 on the lever member 42 thus has the consequence that a transmission of a longitudinal movement of the rod member 33 from the eyelet 58 via the bolt 60 on the lower lever arms of the lever 42a, 42b and vice versa in each case only when the in Moving direction rear closed end of the eyelet 58 abuts the bolt. During a reversal of motion, the eyelet can then initially without taking the lower

Lever arms of the lever 42a, 42b and thus without pivoting of the lever member 42 by the amount of loop length of the eyelet 58 move freely on the bolt. Only when the opposite closed end of the eyelet 58 comes to bear on the bolt 60, a further movement of the rod member 33 is transmitted to the lever member 42 and converted into a pivoting of the lever member. Thus, a kinematic chain between the functional components of the opening device 10 and 1, 2 and 7a, 7b shown closed position of the door leaf 12 via the illustrated in FIGS. 3, 4 and 8a, 8b partially open position of the door leaf 12 in the in Figs. 5, 6 and 9a, 9b shown completely open position of the door leaf leads. From FIGS. 7 to 9 it can be seen that, in the closed door position, when unlatching the pawl 40 engaging in the detent recess, the ejector plunger 30 is pushed out of the housing 28, whereby the lever component 42 moves over the pins 50 engaging in the slots 48 as a result of the entrainment connection still no pivoting learns. If the then pivoted by the ejector plunger 30 in the partially open position door leaf 12 further opened, the rod member 33 is initially taken free by the pivoting movement until the housing interior end of the eyelet 58 on the bolt 60 comes to rest. As a result of the further pivoting movement of the door leaf, the lever component 42 is then pivoted into the position shown in FIGS. 9a, 9b, whereby the ejector ram 30 is automatically pulled back into the starting position via the pivoting movement in the associated groove 48. The pawl 40 then engages the detent recess 38 and locks the ejector plunger 30 in the retracted position. The door can then be pivoted largely free of forces again in the closed position, which then pivots the functional components of the opening device back into the illustrated in Fig. 7 starting position or moved.

FIG. 10 illustrates the arrangement of a second exemplary embodiment of a door leaf opening device 12 according to the invention in the front upper corner area of a cabinet body, of which only the upper corner area of the side wall 14 is shown, while the body terminates at the top Top wall, on whose interior surface facing the interior of the carcass the opening device 110 is fastened, for clarity's sake not shown. Of the

Door leaf 12 is pivotable by means of conventional hinge hinges about a vertical axis, hinged to the side or support wall 14. In the drawing, only the upper, in the special case designed as a conventional four-bar hinge 16 hinge is shown.

The opening device 110 has an elongated in plan view rectangular, in the height direction deliberately kept low housing 118, which with the upper flat side is arranged flush with the carcass top wall and with one of the shorter low transverse walls in flush contact with the inside of the side or support wall 14. In the low front side wall 18a of the housing protruding from the inside of the carcass, a passage opening 120 for a rod component 122 is provided in the vicinity of the support wall 14, whose free end projecting from the housing 118 engages pivotably about a fastening bracket 124 fastened to the inside of the door about a vertical axis ,

In the housing end wall 118, an ejector plunger 128 is arranged with a flat elongated, in the closed state of the door leaf 12 on the inside of the door leaf pressure surface lying in a further spaced from the support wall 14 through opening 126.

In Figure 11, the door leaf 12 is shown in the aforementioned closed position a, wherein additional dash-dotted lines further positions b to f are illustrated, between which the door leaf 12 is pivotable.

Of these additional pivoting positions, the position marked b denotes a position in which door leaf 12 is additionally urged by a slight angle in the direction of the interior of the carcass by exerting pressure on its front side. In this case, the door leaf 12 urges a thrust piece 131, which also protrudes from the front end face 118a of the housing 118 of the opening device, into the housing interior, which then in the manner described below in connection with FIGS. 13a-14f 10 ejected in the housing 118 shown ejector plunger 128 unlocked so that it is pushed out of the opening 126 by the bias of a spring 132 and urges the door leaf 12 in the position indicated by c. In this position, the stroke of the ejector ram 28 is completed and the door leaf 12 can be pivoted about the position d and e in the fully open position f, wherein in the pivoting range of the door leaf 12 between the positions c and e via the hinged to the door member 12 bar member 122nd its movement on a spring biased slider provided in the housing 118 clamping and locking device

134 is transmitted, whose design and function will be explained in more detail below in connection with the figures 12 to 14f. In Figure 12, the opening device 110 is shown in an exploded view, which reveals the individual components in their design. The housing 118 has an upper and lower planar, in plan view each rectangular top wall 118b and 118c, which are kept in the intended mounted position of - in the case shown - four each provided with a central through hole cylindrical spacers 136 at a predetermined distance aligned , wherein the elongated front side wall 118a formed by from the lower top wall 118c at right angles bevelled up strip-shaped areas of the original planar sheet metal blank of the top wall. The passage opening 120 for the rod member 122 and the passage opening 126 for the ejector ram 128 are formed as well as the passage opening for the pressure piece 131 by punching in the folded-over side wall 118a. The height of the spacer body 136 is about the same in vertical

Direction chosen measured height of the front side wall 118a selected so that the elongated side wall 118a, the front of the housing 118 - except for the mentioned punched openings - closes.

The housing 118 may also be closed around the other boundary edges of the cover walls 118b and 118c by raised strip-shaped sheet metal sections all around. In FIG. 3, in addition to the strip-shaped side wall 118a, only the strip-shaped end wall 118d folded upwards from the lower left-hand side wall 18c in the drawing below is shown.

Between the cover walls 118b, 118c, a double-armed lever component 138 is pivotably mounted in the housing 118 about a vertical axis, the lever arms 138a, 138b of which each point in the opposite direction to the narrower side walls of the housing 118. In the end region of the lever arm 138a, the ejector ram 128 is pivotably coupled via a lever 138a angled approach 138c and to a limited extent laterally displaceable. The ejector ram designed as a flat plate component is guided in the passage opening 126 between the cover walls 118b, 118c with its planar pressure surface 128a facing the door leaf. The already mentioned under pressure bias spring 132 acts on the lever arm 138a in the sense of the ejector ram 128 from the passage opening 126 sliding outward pivoting movement to the abutment of the lever arm 138a on the inside of the side wall 118a.

In addition to the free end of the lever arm 138a, a latch component 140 designed as a pivoting lever 140 is arranged in the housing 1, which has a locking projection 140a at its free end facing the free end of the lever arm 138a, which in the retracted locking position of the ejector ram 128 is the free end of the lever component 138a engages under and fixes the lever member against the bias of the spring 132 acting on it in the retracted locking position.

The pivot lever 140 is coupled in the region of its end opposite the pivot bearing end via an elongated pull / pressure member 142 with the free end of a lever arm 144 a of an angle lever 144. The angle lever 144 is part of the above-mentioned trip unit 130. The second lever arm144b of the angle lever is coupled to an elongated u biased under pressure bias in the direction out of the housing 118 out position biased plunger 146, at the angle lever facing away from the free end by a small amount from the front the side wall vortretende pressure piece 131 is attached.

By pressing the pressure member 131 into the housing interior, the angle lever 144 can be pivoted on the lever arm 144b attacking plunger 146 so that the lever arm 144a of the angle lever on the tension / compression member 142 pivots the pivot lever 140, wherein the locking projection 140a of the pivot lever from his free end of the lever arm 138a is withdrawn under cross-position. Due to the pressure bias of the spring 132, the lever component 138 is then pivoted and the ejector tappet 128 coupled to the lever arm 138a is urged outward from the retracted locking position. The voltage applied to the inside of the closed door leaf 12 pressure surface 128a of the ejector ram 128 pivots the door in the in Figure 1 1 with c designated partially open position.

The lever arm 138b of the double-armed lever component 138 cooperates with the already mentioned tensioning and locking device 134, which has a guide housing 148 arranged in the housing parallel to the bodywork. Supporting wall 14 horizontally displaceably guided flat slide 150, in whose door leaf-side front end portion, one end of the rod member 122 is pivotally coupled and longitudinally displaceable over a predetermined amount. The other end of the rod member 122 is - as mentioned earlier - hinged to the mounted on the inside of the door mounting bracket. When the door leaf 12 is opened from the closed position to the open position, the pivoting movements of the door leaf are transmitted to the slider 150 via the rod component 122, ie the slider is moved out of the position inserted into the guide housing 148 (FIG. 13a and FIG. 14b) pulled out the position shown in Figures 13f and 14f, in which its coupled to the rod member 122 front end is pulled through the passage opening 120 through to the housing side wall 118a.

In the slide 150, over the greater part of its length substantially rectilinear in Schieberausziehrichtung running control groove 152 is incorporated, which merges at its outer end of the carcass outside rounded in a short perpendicular to the rectilinear region extending end portion 152a. In the control groove engages a projecting from the bottom of a pivotally mounted on the guide housing 148 segmental control disk 154 tax projection 156 a. The outer segment surface 156a, which lies opposite the pivot axis of the control disk 54, comes into contact with a counter surface of the lever arm 138b when the door leaf is opened, which is then pivoted in its pivotal behavior by the interaction of the control projection 156 engaging in the control groove 152 and the lever arm 138b in the sense of pivoting the lever member pivots counterclockwise, whereby the lever arm 138a of the lever member 138 retracts the ejector plunger 128 into the housing interior. In completely retracted locking position of the ejector ram 128 then again enters the locking projection 140 a of the pivot lever 140 under the free end of the lever arm 138 a and the

Ejector plunger 128 is locked in the retracted position. The door leaf 12 can then be returned from the completely open position (FIG. 13f, FIG. 14f) into the closed position (FIG. 13b and FIG. 14b) virtually without force, the slider 150 being pushed back into the housing 118 via the rod component 122 and via its control groove 152 and the control projection 156, the control disk 154 is pivoted counterclockwise so that its sector-shaped control surface when approaching the closed position of the counter-control surface on the lever arm 138b is lifted and the control projection 156 on reaching the closed position in the end portion 152a of the control groove 152 passes.

The interaction of the functional components of the opening device 110 and their respective position in the Schließbzw designated in Figure 11 with a to f. Opening positions of the door leaf 12 is shown in Figures 13a to 13f and 14a to 14f. It can be seen that when pressing the door leaf 12, by a very small angle in the direction of the interior of the cabinet body from the position a to the position b, the inside of the door leaf 12 that

Pressure piece 131 via the plunger 146 pivots the lever arm 144e of the angle lever 144, whereby the second lever arm 144a on the tension / compression member 142, the pivot lever 140 is withdrawn from the locking device with its locking projection 140a, the free end of the lever arm 138a of the lever member 138 under-reaching position , Due to the bias of the spring 132 acting on the lever arm 138a, the lever arm 138a then unlocked is pivoted and the ejector plunger 128 coupled to it is forced out of the housing through its through-opening 126 out of its almost completely retracted position into the housing, the door leaf 12 automatically until is pivoted to the position c. However, further pivoting of the lever arm 138a is caused by abutment of the lever arm 138b of the lever arm 38a ??? prevents the adjacent spacer body 136, so that the door leaf 12 on further opening of the pressure surface 128a of the ejector ram 128 lifts (Figure 13d). About the hinged to the mounting bracket 124 rod member 122 is then the slider 150 of

Clamping and locking device 134 pulled forward, in which case the control disk 154 is then pivoted in cooperation of engaging in the control groove 152 of the slider 150 tax advantage 156, which in turn pivoted back by pressure on the lever arm 138b the lever member 138 against the tension of the spring 132. By the coupling of the ejector ram 128 on the lever arm 138 a of the lever member 138, this is then withdrawn into the housing 118. Upon reaching the illustrated in Figure 13f position of the components, the free end of the lever arm 138a passes over the latch projection 140a of the pivot lever 140 and is locked in the retracted position of the ejector ram 128th The door leaf 12 can then be largely free of forces pivoted back into the closed position, wherein the slider 150 then by the rod member 122 in the Guide housing 148 is pushed back. In this displacement process, the control disk 154 is then pivoted back as it approaches the closed position of the door leaf, so that it stands out from the counter surface on the lever arm 138b. When approaching the closed position, the control projection 156 then merges into the end section 152a of the control groove 152.

It can be seen that within the scope of the inventive concept, modifications and developments of the described embodiments of the opening devices according to the invention can be realized. Thus, the opening device of the first described as a separate assembly to be mounted

Embodiment in principle can also be assembled with the hinges of a cabinet or integrated into the hinges. It is only essential that the kinematic structure is made such that the ejector tappet displacing the door leaf after unlocking the detent pawl from the detent recess at the beginning of the opening process again pivots into the fully open position via the rod component hinged to the door leaf the retracted position is moved and held automatically locked in this position until the locking engagement of the pawl is canceled by deliberate manipulation of a user. The manipulation of the pawl, for example, remotely operated via a

Bowden cable or guided to an outer actuator pressure or pull rod done. Alternatively, an electrical actuation is conceivable in which the pawl is formed as an anchor or connected to such an armature, which is attracted by applying a voltage in an associated electrical coil. In this context, even a wireless remote release of the armature coil can be thought of.

Also in the second embodiment, parts of the functional groups realized in the opening device 10 by the cooperation of mechanical components can be replaced by electrical or electronic components such as proximity sensors, magnet armature components, etc.

Claims

Patent claims

1. Opening device (10, 110) for relatively movable furniture parts, such as hinged to a furniture carcass hinged door (12), flaps u. With an elongated longitudinally displaceable in or on one of the relatively movable furniture parts fastened housing (28; 118) mounted ejector plunger (30; 128), which by a spring (32; 132) with its one end in one of the housing ( 28, 118) is biased towards the respective other furniture part (22) projecting position and against the bias into the housing interior is zurückdrängbar, wherein a Auswerferstößel (30; 128) in the retracted position in the housing (28; 118) locking by manipulation a user unlockable Sperrvor- direction (38, 40; 140, 140a) is provided, characterized in that in the housing (28; 118) the ejector plunger (30; 128) upon complete opening of the movable furniture part (12) inevitably in the housing (28; 118) retracted locking position displacing clamping device (34; 32 '; 42; 48; 50) is provided, which the opening movement of bew eevertheless furniture part (12) via one with its one from the housing (28; 118) in the housing interior in a retraction movement of the ejector ram (30; 128) into the retracted position.

2. Opening device according to claim 1, characterized in that the tensioning device has a in the housing about a perpendicular to the longitudinal central axis of the ejector ram pivotally mounted double-armed lever member (42) whose one lever arm in its free end in mating connection with the slidably supported in the housing interior area the ejector ram (30) is connected, while at the end region of the other lever arm, an elongated rod member (32) is coupled, which led out of the door wing facing housing free end provided with means (34) for tension and / or pressure-transmitting attachment to the door inside ,

3. Opening device according to claim 2, characterized in that the driving connection of the first lever arm of the lever member (42) with the ejector ram (30) is kinematically formed so that the lever arm pivotable and in addition by a predetermined amount parallel to the longitudinal central axis of the ejector ram (30) slidably coupled to the ejector ram.

4. Opening device according to claim 2 or 3, characterized in that the lever member (42) of two spaced parallel double-armed levers (42a, 42b) is formed, and that the clear distance between the ejector-side lever arms of the double-armed levers (42a, 42b) is substantially equal to or only slightly larger than the outer diameter of the ejector ram (30) is dimensioned.

5. Opening device according to claim 3 and 4, characterized in that the entrainment of the end portions of the ejector-side lever arms of the lever (42 a, 42 b) in each case an associated longitudinal groove (48) predetermined length in opposite areas of the outer side of the ejector plunger (30) engaging pin (50).

6. Opening device according to one of claims 2 to 5, characterized in that the lever member (42) in addition to its pivotable mounting by a predetermined amount at right angles to the ejector ram longitudinal center axis in the height direction is slidably formed.

7. Opening device according to claim 2 and 6, characterized in that the pivot axis of the lever member (42) of two aligned, each of the mutually remote outer sides of the lever (42 a, 42 b) protruding pin (52) is formed, which in each case an associated, in the vertical direction extending groove (54) in the Innenfiächen the opposite walls of the housing (28) engage.

8. Opening device according to one of claims 2 to 7, characterized in that the rod member (32) is pivotally and by a predetermined amount in the direction of the longitudinal central axis of the rod member (32) slidably coupled to the second lever arm of the lever (42 a, 42 b) ,

9. An opening device according to claim 8, characterized in that the rod member (32) in its housing inner end portion a loop-like elongated, closed on both sides eyelet (58) which of one NEM in the end regions of the second lever arms of the lever (42 a, 42 b) of

Lever member (42) held bolt (60) is penetrated.

10. Opening device according to one of claims 2 to 9, characterized in that out of the housing (28) led out end of the rod member (32) about a perpendicular and perpendicular to the rod longitudinal axis axis extending pivotally on a on the inside of the door leaf attachable mounting bracket (34) is articulated.

11. Opening device according to one of claims 2 to 10, characterized in that the locking device a substantially perpendicular to the displacement direction of the ejector ram (30) movably supported in the housing, at its housing inner end in latching engagement with a ejector in the ram (30) provided detent recess (38) engageable pawl (40).

12. Opening device according to claim 11, characterized in that the

Detent recess (38) in the ejector ram (30) is positioned so that the pawl (40) in the retracted into the housing (28) position of the ejector ram (30) with the latching recess (38) is aligned.

13. Opening device according to claim 11 or 12, characterized in that the pawl (40) is resiliently biased in the locking engagement direction with the latching recess 38).

14. Opening device according to one of claims 11 to 13, characterized by means for remote unlocking of the pawl (40) from the latching engagement with the latching recess (38).

15. Opening device according to claim 1, characterized in that in the housing (118) a double-armed lever member (138) with two substantially in opposite directions facing lever arms (138a, 138b) is pivotally mounted, that in the end region of a lever arm (38a) of the arranged under bias ejector ram (128) and a the End of the lever arm (138a) is provided in the retracted position of the ejector plunger (128) associated pivot position of the lever member locking latch member (pivot lever 140) of the locking device, and that the clamping and locking device (134) with the end portion of the other lever arm (138b) the lever member (138) is coupled.

16. Opening device according to claim 15, characterized in that the housing (118) in the longitudinal direction of the pivot axis of the lever member (138) is dimensioned so that the clear distance between the lever member (138) receiving substantially planar housing cover walls (118b,

118c) corresponds approximately to the thickness of the lever component (138) in the region of the pivot axis, wherein the housing cover walls (118b, 118c) along their ejector ram side edges at least partially by a low elongated side wall (18a) with a through hole (126) for the ejector tappet (128) is closed.

17. Opening device according to claim 16, characterized in that the ejector ram (128) has the shape of a flat, between the inner sides of the housing cover walls (118b, 118c) slidably guided plate member, which has a flat prone pressure surface (128a), which in the ins Housing retracted position of the ejector plunger (128) protrudes only slightly over the housing side wall (118) in the through hole.

18. Opening device according to one of claims 15 to 17, characterized in that the locking member of the locking device as a pivotable between the housing cover walls (118b, 118c) mounted pivot lever (140) with a provided at its the pivot bearing end end free end locking projection (140a) is formed is, which engages in the retracted locking positions the ejector plunger (128) associated end of the lever arm (138a) of the lever member (138) and the lever member (138) against the bias acting on it in the retracted locking position.

19. Opening device according to claim 18, characterized in that the

Pivoting lever (140) is coupled in terms of gearing to a release unit (130) arranged at a distance from the pivoting lever, which is resiliently displaced into a slightly over the side wall (118a) of the housing (118) vortretende position biased pressure piece (131) whose generated upon exertion of pressure in the direction of the housing interior insertion movement via the geared coupling in a pivoting of the pivot lever (140) in the sense of a release of the locked End of the associated lever arm

(138a) is reacted.

20. Opening device according to claim 19, characterized in that on the opposite side of the pivot bearing end of the pivot lever (140) an elongated pull / push member (142) is arranged, the other end to a lever arm (144 a) of a pivotable angle lever (144 ) is connected, the other lever arm (144b) is coupled to the pressure piece (131).

21. Opening device according to one of claims 17 to 20, characterized in that the ejector ram (128) is articulated about an offset to its pressure surface (28a) into the housing interior axis pivotally mounted on the associated lever arm (138a) of the lever member (138).

22. Opening device according to claim 21, characterized in that the

Auswerferstößel (128) in addition to its pivotable articulation on the associated lever arm (138a) by a predetermined amount substantially parallel to the pressure surface (128a) is arranged displaceably on the lever arm.

23. Opening device according to claim 21 and 22, characterized in that the ejector ram (128) has the shape of a in the housing cover walls (118b, 118c) opposing areas on both sides flat limited flat body whose measured between the opposite flat surfaces thickness about the clear Distance of the inner surface of the housing cover walls (118b, 118c) corresponds.

24. Opening device according to one of claims 15 to 23, characterized in that coupled to the locking device clamping and locking device (134) on the inner side of the carmobile furniture part on the one hand and a slidably mounted within the housing flat slide (150) coupled Rod member (122) as a clamping member, wherein the slider (150) with a greater part of its length in the Substantially rectilinear extending cam-like cam groove (152), which, however, merges into a short substantially perpendicular to the rectilinear portion extending end portion (152 a) at the outer end of the body, and in the control groove (152, 152 a) at a pivotable in the housing (118) arranged flat segmental control disk (154) provided control projection (156) engages, which is in the closed position of the movable furniture part in the transverse end portion of the control groove and upon opening of the movable furniture part by the rod member on the slide transmitted movement under pivoting of the control disk ( 54) is adjusted in the rectilinear portion of the cam groove (152) and so on

Displacement of the previously held by the engagement of the control projection (156) in the direction perpendicular to the rectilinear control groove portion extending control groove end portion (152a) slider (150) releases in the direction of the body inside out.

25. Opening device according to claim 24, characterized in that the rod member (122) is pivotally and in a predetermined extent in the direction of displacement of the slider slidably coupled to the slider (150).

26. Arrangement of an opening device (110) according to one of claims 16 to 25 hinged to a cabinet with pivoting cabinet body door leaf (12), characterized in that the housing (118) of the opening device (110) with one of the housing cover walls (118b) on the inner surface of the upper top wall or the bottom of the cabinet body disposed in the cabinet body is that the pressure surface (128) of the ejector plunger (128) projecting in the retracted position only slightly from the side wall (118a) of the housing (118) substantially the inner surface of the stationary door in the closed position (12) rests.