DE3619775C2 - - Google Patents

Description

The invention is directed to a sliding door cabinet the type specified in the preamble of claim 1.

In the known sliding door cabinet (EP-OS 00 75 364) are both in the top offset sliding door Boom located in the door area as well as in the lower one Struts arranged in the door area in two parts forms, with the two parts spring-loaded to each other and allow a change in length. In the closed position, where all sliding doors have their assigned cabinet opening cover all the sliding doors in one common level, are consequently "flush". To the Must open cabinet with a fixed front sliding door first over the neighboring front offset sliding door these are pushed. Through bevelled door edges the front offset sliding door overflows the adjacent fixed front sliding door on, taking it to an elastic change in length of their arms and Striving is coming.

This handling is cumbersome, noisy and leads to damage when sliding the doors over one another. In the known cabinet, the two form against each other spring-loaded parts have an extension drive that is vertical  is directed to the door level, one at the end part of the movement at rest on a continuous Carrying track roller on which the other part holding the door as a slide is mobile. There is need between the two parts maneuverably a game, which is why the known, length changeable arm of the front offset sliding door not are sufficiently stiff and therefore easily open the door can hang. Depending on the extension length of the known Aus The extent of sagging of the Change door. The two-part struts of the well-known Cupboards are against the action of a torsion spring can be bent to change the length and therefore for effective support of the lower door area is not sufficiently rigid. A parallel position of the front offset Sliding door was therefore not ensured. This worked adversely affect the good appearance of the cabinet and made himself stiff in the door operation noticeable.

The invention has for its object to develop a reliable sliding door cupboard of the type mentioned in the preamble of claim 1 , which are characterized by ideal parallelism of their shooting in each movement phase and can be operated quickly and conveniently for opening and closing the cupboard. According to the invention, this is achieved by the measures specified in the characterizing part of claim 1, which have the following special significance:

In the invention, the boom of the front offset Sliding door formed in one piece and therefore in shape stiff. The sliding door cannot sag.  

In the invention, the boom has a closing mechanism on the other hand, the superior exit as well as the shifted open position always a constant Length; the distance between the roller and the door plane is therefore constant in the invention. Same conditions on the boom therefore ensure the same in all positions Positions of the sliding door; it is always parallel to itself moves itself, which makes the cabinet look good remains guaranteed. This is supported on the one hand through the coupling shaft with its two steering arms, which every extension movement in the upper door area into one coordinated movement in the lower door area, and vice versa, implements. In the invention is described in the claim Level rail bridge to the front offset sliding door hearing track of the displaceable part. In The closed position is the rail bridge opposite the barrel rail reset. The roller is on the Rail bridge against by stops or limit switches blocked over a sliding movement. She is but in the fully extended position of the drive, so is the rails bridge aligned with their track and the front Offset sliding door can be moved along the track become ineffective because the limit switches or stops have been set. By coupling the movement of the both off belonging to a front offset sliding door After all, traction drives is also a coordinated movement the left with the right door edge guaranteed. Also in this regard, the parallel position of the door is always secured.

Claim 3 brings a particularly simple Guiding effect of the steering arm, according to claim 4 entirely or partially also the functions of the support role in Moving the door can meet. For strength Weighing is recommended, however, in accordance with claim 5  the guide roller also has a support roller on one in to look stiff strut. A breakthrough in the Support rail enables the when moving in Passage of the support roller and strut during the closed position. Such breakthroughs can, as proposed in claim 12, be offset in height to each other, because then the two Support rollers assigned to door edges in their other Shift an effective area in the support rail find. According to claim 6, such a breakthrough also be lockable.

So that the steering arm moves precisely, it is recommended to provide the intermediate storage specified in claim 7, which can be designed according to claim 8. For the train the guide roller in the upper door area is required no special profile, but uses space-saving the space between the two already present Running rails according to claim 9 as a guide groove. Also in lower door area you get a space-saving design, if according to claim 10, the support rail itself as Career used for the leadership role. It is enough for this a height and length offset according to claim 11.

So that the movement does not block when entering and exiting, it is recommended that the steering arms from the outset Give inclination according to claim 13. This is promoted by the mirror image in claim 14 and the directional inclination of the steering arms when turning on and off drive the sliding door according to claim 15.

The movement coupling mentioned in claim 2 for extension drives belonging to the left and right edge of the door could be done using scissors or an endless chain.  

A particularly precisely coordinated parallel movement in the Entry and exit results from the claim 16 listed components. The associated horizontal But wave can also serve to create a motor Entry and / or exit movement of the sliding door according to An to bring about saying 17. You can, according to claim 18 such a motor over that already in claim 16 cause mentioned extension drive, the over a push bar drive a rack moved longitudinally, which then over slip couplings acts on the horizontal shaft. The slide Couplings also leave one in the event of an electrical defect manual door movement and prevent damage of the transmission if there are obstacles when entering and exiting there is movement. The slip clutch leaves it driven sprockets freewheel if too high Braking torque on the horizontal shaft is effective on indicates an obstacle. The engine can either according to claim 19, on a separate extension drive act from which each via Horizon slip clutches valley waves to the other two extension drives on the left and right door edge, or it could, according to claim 20, one of these ge to the cantilevers hearing extension drives are moved by the engine. The Claim 21 brings a particularly robust design, the works precisely and noiselessly. If you choose that in An Proverb 22 specified structure, there is a self active acceleration and braking of the entry and exit Movement of the sliding door in its closing and off Movement reversal points characterizing the driving position.

In the drawings, the invention is in one embodiment example shown. Show it:  

Figs. 1 to 4 is a schematic plan view of a cut horizontally sliding door cupboard according to the invention with three sliding doors which are located in mutually different positions,

Fig. 5a in side view and with cutouts a broken vertical section through the sliding door cabinet according to the invention along the line Va-Va indicated in Fig. 5b, 5c but also in Fig. 2, where the longitudinally cut sliding door is in a special position, namely a " Extension position ",

Fig. 5b is a horizontal section through the cabinet of the section line along Vb-Vb of Fig. 5a,

Fig. 5c a further horizontal section through the cabinet section line Vc-Vc longitudinally from Fig. 5a,

FIG. 6a, 6b and 6c are vertical and horizontal sections through the cabinet in a manner analogous to Figs. 5a, 5b and 5c way, but where the sliding door in question is situated in a different position, namely a "closed position", which in Fig. 1 and is illustrated by the section line VIa-VIa for FIG. 6a,

Fig. 7a, 7b and 7c shows cross sections through the extending drives arranged in the left, middle and right area of the sliding door, Fig. 7a, which is assigned to the left door area, a section along the section line VIIa-VIIa of Fig. 6a represents and Fig. 7b the corresponding section along the taken at a different point section line VIIb-VIIb of Fig. 5a shows the exit actuator of the right door region, wherein the impulses of FIG. are rotationally operatively coupled 7a to 7b by a common shaft with each other,

Fig. 8 is a schematic plan view of an engine, a thrust gear and a clutch of the drive from.

The sliding door cabinet 10 is equipped with a plurality of sliding doors 11 , 12 , three of which are shown in FIGS. 1 to 4. These doors consist of two types, but in the closed position, as shown in FIG. 1, are arranged flush with one another, ie they are in a common plane 17 . In the closed position, each of these doors 11 , 12 blocks the associated door opening 13 , 13 'and 13 ''. In order to make the cabinet 10 accessible through one of these openings, the doors 11 , 12 in the sense of the arrows 14 , 14 ', 14 ' shown, depending on the space available, can be moved to one or both sides. However, this is initially not possible in the closed position of FIG. 1 because the doors with their left edge 15 or right door edge 16 would butt against one another. To accomplish this, an intermediate position of the doors according to FIG. 2 is provided.

One door type 11 always remains in the in Fig. 1 indicated and adopted in Fig. 2, the closing position characterizing level 17, which is therefore "closing level 17 " to be referred to net. This door 11 can only be moved in this closing level 17 , which is demonstrated in Fig. 3, where the left sliding door 11 has been moved laterally in the direction of arrow 14 ', the associated door opening 13 ' releases and therefore in the from Fig . 3 apparent "open position" is. This door 11 therefore remains fixed in the front in the closing plane 17 and is therefore to be referred to as “fixed front door 11 ” in the following.

At least every second door of the cabinet is of a different type 12 , which must in any case be transferred to the intermediate position mentioned in FIG. 2 if opening operation is to be carried out on the cabinet 10 . This is done by moving the door 12 from its closed position in FIG. 1 frontally in the sense of the offset arrow 18 shown in FIG. 2 into a plane 19 lying in front of it, which is set sufficiently far forward to allow the free movement of the doors 11 , 12 to allow each other. This layer 19 is therefore "offset level 19" are hereinafter referred to as to be referred to as a "front door offset 12" forwardly displaceable door 12th

Starting from this intermediate position of FIG. 2, the various door openings 13 to 13 '' can now be made optionally accessible, which has already been explained with reference to FIG. 3 with regard to the left fixed front door 11 . If the door 12 is in the offset plane 19 , this intermediate position is to be referred to as the "extended position" of the door 12 . In this case, for example, according to FIG. 3, the left fixed front door 11 can be moved behind the front offset door 12 if one wants to expose the left door opening 13 . In a mirror-image manner, one could of course also proceed with the right fixed front door 11 if the associated door opening 13 '' should be made accessible. Fig. 4 shows that alternative case where the front offset door 12 is transferred to its open position to expose the associated door opening 13 . This is done, as can be seen from FIG. 4, by pushing the door 12 in front of the left fixed front door 11 remaining in the closed position. Of course, this could also be done in a mirror-image manner by pushing the door 12 in front of the right fixed front door 11 . How this displacement 14 , 14 ', 14 ''of the doors 11 , 12 takes place can be seen from FIGS. 5a to 5c, from which the following results:

The left and right door edge 15 , 16 of the front offset door 12 is assigned an here L-shaped bracket 21 , one L-leg of which is attached to the rear of the door, while the other leg 26 is provided with a running part, namely here with a roller 20 , which sits on a running rail 22 arranged parallel to the door plane 19 . The front offset door 12 thus hangs over the roller 20 on its track 22 .

In an analogous manner, the fixed front doors 11 , as shown in FIG. 5a, are also provided here with U-shaped brackets 23 with running parts also designed as rollers 24 , which hang on running rails 25 and are movable along these. This running rail 25 is arranged parallel to the other running rail 22 and thus to the door plane 19 . The arm 21 of the front offset door 12 is dimensioned so that in the extended position 19 shown in FIG. 5a the fixed front door 11 can be moved below it behind the door 12 . Since the running rail 22 is arranged behind the running rail 25 of the fixed front door 11 , the upper L-leg 26 of the arm 21 of the front door 12 must be made correspondingly longer. Both this L-leg 26 and the web of the other from the layer 23 are inherently rigid and not variable in length with respect to the associated track 22 and 25th This contributes to a perfect hanging arrangement of the two doors 11 , 12 both in the closed position and in particular in the extended position and open position. This is particularly because, in addition to the suspension mentioned in the upper door area 27, there is also a fixed support in the lower door area 28 , which comprises the following components:

In the lower door area 28 , the front offset door 12 is provided here with an L-shaped strut 31 , which is fastened with its one L-leg to the rear of the door and has a support on its other free L-leg 36 , namely a horizontal support roller 30 which is accommodated in a support rail 32 , which also runs parallel to the plane 19 , for effective guidance. The support roll 30 sits with its axis on a bolt attached to the L-leg 36 .

In an analogous manner, the fixed front door 11 , as can be seen from FIG. 5a, is provided via a U-shaped strut 33 with a horizontal support roller 34 , which also acts as a support part, which is accommodated in a support rail 35 running parallel to the support rail 32 and there is guided longitudinally. Here, too, which belongs to the front offset door 12 strut 31 is sufficiently dimensioned large in order mentioned in that of Fig. 5a apparent from travel attitude undisturbed movement of the fixed front door 11 with its brace 33 and supporting roller 34 in the above it, in Fig. 5a phantom line closing to allow level 17 . In the extended position, the two doors 11 , 12 can be shifted undisturbed between the closed or extended position covering their door opening on the one hand and the open position releasing the door opening on the other hand because of the mutually deeply displaced running means and support means.

The running track 22 is straight, but in several pieces and consists of fixed sections 22 ', between which, separated by parting lines 37 , parallel movable sections 29 are arranged, which sit in the full closed and extended position of the front offset door 12 exactly under the rollers 20 . If the extended position 19 according to FIGS . 5a to 5c is present, the parts 22 ', 29 are aligned with one another in one plane, as can be seen in particular from FIG. 5b. In this alignment position, they form, over the parting lines 37 , a combined running rail 22 , along which the front offset door 12 with its rollers 20 can be moved. In the upper door area 27 there is an extension drive 40 , which, as can best be seen in FIGS. 6a and 7a, consists of a guide part 41 which rests with respect to the cabinet 10 and a part 42 which can be displaced therein. In order to reduce the friction 43 roller members 44 , like balls seated in a ball cage, are arranged between the parts 41 , 42 in the intermediate raceways. The displaceable part 42 is here equipped with a toothed rack 45 , in which a pinion 46 engages, which is seated on a shaft 47 which is rotatably mounted in the cabinet 10 . The movable part 42 of the extension drive 40 also includes the mentioned, movable part 29 of the running rail 22 .

If the front offset door 12 is in its closed position of FIG. 6a, this section 29 is in the offset with respect to the fixed sections 22 'of the running rail 22, as illustrated by the arrow 48 in FIG. 6a. The roller 20 is located in a secured position on the movable section 29 of this rail 22 by switch-operated end stops, not shown. In the closed position of Fig. 6a can therefore, seen from the barrel 20 , the door 12 does not jump off the rail section 29 . Otherwise, this is already achieved because, as shown in FIG. 1, the front offset door 12 cannot move in the sense of the double arrow 14 due to the mutual edge stop of the door edges 15, 16 on both sides.

As already mentioned, the front offset door 12 can now be transferred from the original closing level 17 by the already mentioned offset distance 18 into the front level 19 of FIG. 2, which is also shown in FIGS. 5a to 5c. For this purpose, the extension drive 40 is set in motion and moves its movable part 42 forward by the offset distance 48 mentioned in FIG. 6a, which produces the last-mentioned offset 18 between the two door planes 17 , 19 . In this method of the door 12 is ensured by the end stops already mentioned that the roller 20 can not jump off the movable rail section 29 . The locked position of these end stops is eliminated in the fully extended position according to FIGS . 5a to 5c, where the already mentioned running track 22 is formed from the sections 22 ', 29 . This movable part is thus to be referred to as "rail bridge 29 ", which is movable by the extension drive 40 .

In the simplest case, this offset movement 18 of the door 12 is carried out manually. In the present invention, however, a motor drive is provided, which is best shown in FIG . 7a to 8 can be seen. The motor could also be directly connected to one of the two extension drives 40 , which are assigned to the left and right door edges 15, 16 in the area of the respective roller 20 , but, as shown in FIG. 7c, a separate extension drive is provided in the area of the center of the door see 40 'measures, but which in principle has a similar construction to the members of the rail bridge 29 exit instincts 40th

Fixed in the cabinet 10 , a rotation-driven motor 50 shown in FIG. 8 is provided, which is connected via a special thrust gear 51 to a rack 45 'belonging to the extension drive 40 '. This rack 'sits, which applies to the members of the rail bridge 29 both exit Riebe 40 of Fig. 7a and 7b, mutatis mutandis, at 45, at an offset moving part forming plate 42' 45, the shaped U-into a guide part längsbeweg out 41 'Lich is with the interposition of rolling elements 44 '. The thrust gear 51 comprises, as can be seen from FIG. 8, a worm wheel 52 , which is driven by a worm 53 on the motor axis, optionally in left or right rotation, through a step angle of 180 °. At the worm wheel sits a crank pin 54 , which can be transferred from its one end position drawn in FIG. 8 to the dash-dotted other rotary end position 54 '. The crank pin 54 is via a crank bracket 55 rotatable with the end of the drive plate 42 'a related party. In the 180 ° rotation in the sense of the double arrow 56 of FIG. 8, the pin 54 consequently performs the longitudinal movement 56 shown in FIG. 8 on the plate 42 '.

This longitudinal movement 56 is, as can be seen from Fig. 7c, transmitted via the associated rack 45 'to a gear 49 which is rotatably connected to the horizontal shaft 47 via a slip clutch 57 .

Assuming the situation of Fig. 1, where the front offset door 12 is in the fully closed position, the longitudinally movable plate 42 'is in its dash-dotted position in Fig. 8 indicated position 42 '', while the crank of the slide gear 51 is in the rear position 54 '. The door 12 is in the retracted position according to FIGS . 6a to 6c. The door 12 is now provided with a handle, not shown, which also acts as a switch and is already effective when actuated or just touched. This happens when any door 11 , 12 of the cabinet 10 is to be opened. By triggering the handle switch, the motor 50 shown in FIG. 8 is activated via its supply lines 58 and drives the worm wheel 52 via its worm 53 via the step angle of 180 ° already mentioned into the extended position of the crank 54 , where the motor 50 automatically is switched off again. By radial adjustment of the crank pin 54 , the longitudinal movement 56 thereby carried out can be precisely adjusted in dimension. It is noteworthy that the end positions 54, 54 'of the crank in the direction of the rack 45 ' have because in the end regions of the circular movement of the braking of the longitudinal movement of the plate 42 'and the associated other components takes place by itself. The longitudinal movement 56 of the plate 42 'thus takes place accelerating to the center of movement and decelerating to the movement ends of the line 56 , which results in a very elegant, automatically braking movement of the front offset door 12 . This is evident from Fig. 7a to 7b evidently that the rack and pinion 57 and the connected ends of the horizontal shaft 47, the pinion 46 are driven on both sides by rack 45 ', gear 49 . The pinions 46 in turn now move the plate-shaped, displaceable parts 42 of the extension drives 40 there via the corresponding toothed racks 45 and bring about a defined displacement movement 18 of the door 12 . By suitable dimensioning of the gear 49 and the pinion 46 , a transmission ratio of the movements of the corresponding racks 45 , 45 'may be realized. In any case, however, it is of course ensured via the horizontal shaft 47 that exactly the same movements are carried out in both the left and the right extension drive 40 at every moment. By coupling the horizontal shaft 47 , the left door edge 15 is consequently transported with the right door edge 16 during the offset movement 18 ; the door does not tilt. The door always remains parallel to itself, as is also expressed from its end positions in the closing and offset levels 17 , 19 mentioned .

The slipping clutches 57 are intended to prevent damage to the drive, the components or the door 12 if an obstacle should accidentally get into the path of movement. Then, although the plate 42 of the motorized extension drive 40 'can perform its entire longitudinal movement 56 , but the slip clutches 57 transmit, when a sufficiently inhibiting torque is reached, the rotary movement of the gear 49 no longer on the two ends of the horizontal shaft 47th For this purpose, the slip clutches clutch disks be loading compression springs 59 , which are disc between the clutch and the inner surfaces of the U-legs of the associated U-shaped guide part 41 'are supported. The clutch discs can be provided with locking balls which engage in corresponding locking recesses on the end faces of the gear 49 . It goes without saying that any other slip clutch 57 known per se could also be used here. Such a slip clutch could also attack another part of the extension drive 40 , for. B. in the area of the end clutch with the thrust gear 51st

The slip clutch 57 is also important for a manual operation of the front offset door 12 , which is necessary if the power supply 58 of the motor 50 fails, or another defect in the transmission is present. The pinions 46 are namely non-rotatably connected to the horizontal shaft 47 and consequently rotate the latter if the door 12 should be moved manually in the direction of the offset arrow 18 . On the other hand, the plate 42 of the motorized extension drive 40 'via the gear 51 is blocked, but this does not matter because the slip clutches 57 allow the aforementioned manual rotation of the shaft 47 relative to the fixed gear 49 .

In order to return a door 12 in the extended position , as shown in FIG. 2, back to the closed position of FIG. 1, the handle of this door, which acts as a switch, or another door 11 coupled to it, only needs to be actuated or touched. Now there is first the motorized extension drive 40 'in the extended position shown in Fig. 8. The motor 50 is in turn automatically driven only until the crank has moved from its end position 54 into the opposite end position 54 'of FIG. 8 by the step angle 56 . Then the extension drive 40 'stops again, which means that the movement-coupled extension drives 40 with the rail bridge 29 set their offset movement and, as a result of the adjusted distances, are returned to the closing plane 17 .

This parallel movement of the left and right door edges 15, 16 of the front offset door 12 is ensured even with purely manual door actuation of the cabinet 10 by such extension drives 40, 40 , which are then coupled to one another in terms of movement by a continuous horizontal shaft 47 . A motorized extension drive 40 'is then of course omitted. Instead of a coupling via shafts 47 , pinions 46 and racks 45 , other coupling means such as chains and sprockets or the like could also be used. Coupling scissors could also be used.

During the offset movement 18 , however, not only are the left and right door edges 15 , 16 guided in parallel, but at the same time a corresponding, coordinated parallel movement of the upper and lower door regions 27 , 28 is also provided, for which purpose the following control elements are provided.

On the front offset door 12 , as can be seen from FIG. 6a, a coupling shaft 60 is rotatably mounted, which has a steering arm 63 , 64 , each connected to it in a rotationally fixed manner, at its two shaft ends 61 , 62 . At the free arm ends sit bolts 65 , 66 on which horizontally lying guide rollers 67 , 68 are rotatably mounted, which engage in associated tracks 69 , 32 . These tracks run parallel to the running rails 22 or support rails 32 . In the present case, the lower track is formed by the support rail 32 itself because it has a sufficient height and the associated guide roller 68 is offset at a height 70 according to FIG . 6a is arranged with respect to the associated support roller 30 . The parallel support rails 32 , 35 , which each have a U-shape, therefore require only a small rail width 71 in the invention.

The upper guideway 69 for the upper guide roller 67 is in the invention advantageously by the best apparent from Fig. 6b clear distance 69 between the two rails 22 , 25 of the two door types 11 , 12 formed, whereby a relatively moderate small rail width 72 can be achieved. If the door is extended from its closed position of FIG. 6b in the direction of arrow 18 , the upper guide roller 67 forces the steering arm 63 there, via the pin 65, to be rotated by the arrow 73 indicated by arrow 73 in FIG. 6b, which is connected in a rotationally fixed manner to it Coupling shaft 60 is transmitted and leads to a corresponding forced movement in the direction of arrow 74 of Fig. 6c of the lower steering arm 64 , so that it is moved with its guide roller 68 in the support rail 32 serving as a guide track. This ensures an exact parallel movement of the upper door area 27 with the lower door area 28 ; Each movement of one edge area is implemented via this coupling 64, 60, 63 in a precisely coordinated movement of the opposite door area.

In some cases, as can be seen from FIGS. 6a and 6b, it is favorable to move the steering arm 63 via a sliding element 75 along a curve section at 76 . For this purpose, the upper bolt 66 is provided with a Bolzenver extension 77 in the lying case before, which extends through a circular slot 76 in the upper boom arm 26 , as can be seen from FIG. 6b.

On the bolt extension 77 there is a disk 78 which overlaps the circular slot 76 and which forms the aforementioned sliding element 75 with the extension 77 . As can be seen from a comparison between FIGS. 6b and 5b, the sliding element 75 moves from one end of the circular slot 76 to the other during the extension movement 18 . This rotary movement naturally takes place in the opposite sense in the case of a reverse entry movement. In the exemplary embodiment shown, such an intermediate storage 75, 76 is only provided for the upper steering arm 63 , but this could of course also be implemented in the same way for the lower steering arm 64 if there is a need for this.

As can be seen from FIG. 6 b, the front offset door 12 is assigned two such vertical coupling shafts 60 , which are located in the region of the left and right door edges 15 , 16 and therefore also these longitudinal door edges due to the guide means 63, 67, 69 and 64, 68 arranged in pairs , 32 lead in parallel in each phase. This ensures not only a coordinated movement of the upper and lower door areas 27 , 28 , but also of the left and right longitudinal door edges 15 , 16 , which is why the above-mentioned coupling via the horizontal shaft 47 and its pinion 46 could be dispensed with if necessary, if not exact coordination of the movements of the extension drives 40 , 40 on both sides is also desirable.

A comparison between Fig. 6b and 5b on the one hand and 6c and 5c on the other hand shows that both in the closed and in the extended position of the door 12, the steering arms 63, 64 with a dash-dotted vertical plane 79 to the door plane 18 or 17 , inclination angle 80 or 81 Include.

Under no circumstances does the steering arms 63 , 64 stretch, which could lead to an over-dead center position, which would impede the entry and exit operation 18 of the door 12 . A comparison of the various positions shows, moreover, that the steering arms 63 , 64 assigned to the left door edge 15 have a mirror image of the same inclination 81 and 80 relative to that of the right door edge 16 . Finally, it can also be seen from FIGS. 6b and 6c that the arms 63, 64 belonging to a common coupling shaft 60 are aligned with one another and point in the same direction with respect to the door vertical plane 79 even in both extreme positions of FIGS. 6b and 6c . From Fig. 5b and 5c it is apparent that the coupling of the shaft 60 facing the rotationally fixed ends of the arms 63, 64 of the lower strut are passed 31 through slots 38 of the upper boom 61 and slots 39.

As can be seen from FIG. 6a on the one hand and FIG. 6c on the other hand, the position of the support rail 32 lying there in the closed and extended position toward the support roller 30 there is provided with an opening 82 through which ends 83 of the strut 31 can pass, when the closed position according to these figures is present. Because of the height offset 70 mentioned, the guide roller 68 is never in the area of these cutouts 82 . Otherwise it would be conceivable to close this opening 82 by appropriate pushing or flaps when the extended position according to FIGS . 5a to 5c is present. In order to make the effect of the openings 82 , when they are open, as little as possible noticeable during the displacement movement 14 explained in connection with FIG. 1, it is advantageous, in turn, for the support rollers 34 facing the left and right door edges 15, 16 to be at different heights from one another to arrange.

From Fig. 5c it can finally be seen that - seen in the direction of the support rail 32 - the support roller 30 is arranged with respect to the associated guide roller 68 in the longitudinal distance 98 .

If a motor drive for the offset movement 18 according to FIG. 2 is provided, it can, instead of its own extension drive 40 'according to FIG. 7c, also directly and indirectly associated with an extension drive 40 assigned to the two door edges, which carries the respective bridge 29 be that. Instead of the worm gear 31 , it is understood that any other motor drive known per se, such as. B. a spindle for moving the movable part 42 'of such an extension drive 40 or 40 ' could be used. Of course, pneumatic or hydraulic or magnetic propellants could also be used instead of electric motors.

According to FIG. 5a, the profile 84 having the two running rails 22, 25 can be combined to form a combination profile, which on the one hand can comprise a cable duct 85 and on the other hand a space 86 accommodating cabinet lights 87 . This results in an overall profile 84 of asymmetrical H shape. The lamp room 86 can be shielded by glass, lamellae or a grid-shaped cover 88 . The profile 84 can have an outer web 89 , which is useful as a base for the fixed part 41 of the extension drive 40 . These components can be arranged on a horizontal plate 90 arranged in the cabinet, which is set apart from the top cover plate 91 of the cabinet to accommodate the upper mechanism with its rails. The cabinet interior light 87 is then effective in the usable cabinet area below the horizontal plate 90 .

The lower guide rails 32, 34 can also be part of an overall profile 92 shown in FIG. 5a, which has a base web 93 functioning as a baseboard, in which the above-mentioned cutouts 82 are provided at the particular locations.

Finally, the cabinet includes the outer walls 94 and intermediate walls 95 which are best seen in FIG. 6c and which, because of the sliding door function, can have a width offset at their front. The lower overall profile 92 also has longitudinal ribs 96 , which can be used to support floor plates 97 , as can be seen from Fig. 5a.

Claims (22)

1. Sliding door cabinet ( 10 ) with sliding doors ( 11, 12 ) lying flush in a common plane in the closed position, the upper running parts assigned to the left and right door edges ( 15, 16 ), in particular vertical running rollers ( 20, 24 ), in the upper Türbe rich ( 27 ) booms ( 21, 23 ) on the one hand hanging on parallel to the door plane ( 17 ) arranged rails ( 22, 25 ) sit and by lower support parts, especially horizontal support rollers ( 30, 34 ), in lower door area ( 28 ) located struts ( 31, 33 ) on the other hand longitudinally movable ( 14, 14 ', 14'' ) on parallel to the door plane ( 17 ) arranged support rails ( 32, 35 ) are guided, with a vertically directed to the door plane extending ( 40 ) in the area of the two brackets ( 21 ) at each one ( 12 ) of two adjacent sliding doors in order to make this sliding door front-shiftable (front shift door 12 ) and - starting from the closed position - to be transferred into a plane ( 19 ) parallel to this, which indicates an extended position, in front of the plane ( 17 ) of the other sliding door (fixed front door 11 ) which remains fixed at the front,
and with parallel, spaced ( 69 ) to each other NEN running and support rails ( 22, 25; 32, 35 ) for neighboring front offset and fixed front doors ( 12, 11 ), the arms ( 23 ) and the struts ( 33 ) the fixed front door ( 11 ) is inherently rigid,
characterized,
that the - seen in the closed position - each under the roller ( 20 ) located section of the running rail ( 22 ) as one of the adjacent rail parts ( 22 ') by parting lines ( 37 ) separated rail bridge ( 29 ), this rail bridge ( 29 ) to displaceable part ( 42 ) of the extension drive ( 40 ) belongs, also the boom ( 21 ) of the front offset door ( 12 ) is inherently rigid, on the front offset door ( 12 ) a vertical coupling shaft ( 60 ) is rotatably mounted and on their two, in the upper and the lower door area ( 27, 28 ) of the shaft ends ( 61, 62 ) each have a steering arm ( 63, 64 ) seated in a rotationally fixed manner, the free arm end ( 67, 68 ) of which is each arranged in a parallel to the running or support rail ( 22, 32 ) arranged track ( 32; 69 ) is slidably guided,
wherein the two rail bridges ( 29 ) are set back relative to their running rail in the closed position of the sliding door, but are aligned with it in the extended position. 2. Sliding door cabinet according to claim 1, characterized in that the one hand the left and on the other hand the right door edge ( 15, 16 ) associated offset movable parts ( 42 ) of the two extension drives ( 40 ) of the front offset door ( 12 ) coupled to one another in terms of movement ( 47 ) are for a coordinated, always parallel retraction and extension ( 18 ) of this sliding door ( 12 ) between its closed position ( 17 ) and a parallel extension position ( 19 ) offset from it. 3. Sliding door cabinet according to claim 1 or 2, characterized in that the free arm end of the steering arm ( 63, 64 ) is provided with a guide roller ( 67, 68 ) and which it takes on the web ( 69, 32 ) as a U-profile Groove is formed. 4. Sliding door cabinet according to one or more of claims 1 to 3, characterized in that the lower, with a free arm end ( 68 ) on its path ( 32 ) longitudinally guided steering arm ( 64 ) wholly or partially the function of with its support roller ( 30th ) in the support rail ( 32 ) longitudinally displaceably guided strut ( 31 ) in the lower door area ( 28 ). 5. Sliding door cupboard according to one or more of claims 1 to 4, characterized in that the strut ( 31 ) located on the front offset door ( 12 ) is inherently rigid and in the closed and extended positions ( 17, 19 ) the - in Seen a direction of travel of the door - behind its support roll ( 30 ) is the point of the support rail ( 32; 93 ) with an opening ( 82 ) for passage of the strut end ( 83 ) is provided. 6. Sliding door cabinet according to claim 5, characterized in that the cutout ( 82 ) when moving ( 14 ) in the extended position ( 19 ) located front offset door ( 12 ) can be covered. 7. Sliding door cabinet according to one or more of claims 1 to 5, characterized in that at least one steering arm ( 63 ) via a sliding element ( 75 ) along a curve piece ( 76 ) is slidably mounted between. 8. Sliding door cabinet according to claim 7, characterized in that the curve piece from one or more coaxial to the axis of the associated vertical coupling shaft ( 60 ) arranged circular slots ( 76 ) in the casual ( 21, 26 ) and / or in the strut ( 31 , 36 ) of the front offset door ( 12 ). 9. Sliding door cupboard according to one or more of claims 1 to 8, characterized in that the U-profile groove for the guide roller ( 67 ) located in the upper door region ( 28 ) seemed to be free ( 69 ) between the two barrel ( 22, 25 ) of adjacent sliding doors ( 11, 12 ) is produced, where the running rails ( 22, 25 ) form the two U-profile legs, between which the guide roller ( 67 ) is arranged. 10. Sliding door cabinet according to one or more of claims 1 to 9, characterized in that the U-profile groove ( 32 ) for the guide roller ( 68 ) located in the lower door area ( 28 ) is the same from the support rail ( 32 ) for the front offset door ( 12 ) is formed and the guide roller ( 68 ) is offset in height ( 70 ) against the support roller ( 34 ) located on the associated strut ( 31 ). 11. Sliding door cabinet according to claim 10, characterized in that the support roller ( 30 ) is offset in height ( 70 ), but, seen in the direction of the rail ( 32 ), at the same time in the longitudinal distance ( 98 ) to the guide roller ( 68 ). 12. Sliding door cabinet according to one or more of claims 1 to 11, characterized in that the left and right door edge ( 15, 16 ) associated support rollers ( 30 ) of the front offset door ( 12 ) are at different heights and the two associated breakouts ( 82 ) are accordingly offset in height from one another in the support rail ( 32, 93 ). 13. Sliding door cabinet according to one or more of claims 1 to 12, characterized in that both in the closed and in the extended position ( 17, 19 ) of the front offset door ( 12 ) their steering arms ( 63, 64 ) with respect to a vertical plane ( 79 ) The door ( 12 ) is always inclined ( 80, 81 ). 14. Sliding door cabinet according to claim 13, characterized in that the two on the one hand the left ( 15 ) and on the other hand the right door edge ( 16 ) associated steering arms ( 63, 64 ) in the closed and / or extended position ( 17, 19 ) of the front offset door ( 12 ) have an inclination ( 80, 81 ) that is mirror image of one another. 15. Sliding door cabinet according to claim 13 or 14, characterized in that the two steering arms ( 63, 64 ) seated on a common coupling shaft ( 60 ) are aligned with one another and in the closed and extended positions ( 17, 19 ) with respect to the vertical plane ( 79 ) to the door ( 12 ) always have an inclination ( 80, 81 ) pointing in the same direction. 16. Sliding door cabinet according to one or more of claims 1 to 15, characterized in that the displaceable part ( 42 ) of the extension drive ( 40 ) has a rack ( 45 ) arranged in the extension direction, in each of which a pinion ( 46 ) engages, and the two sprockets ( 46 ) belonging to a common front offset door ( 12 ) are connected to one another in a rotationally fixed manner by a horizontal shaft ( 47 ) which is rotatably mounted in the cabinet ( 10 ). 17. Sliding door cabinet according to claim 16, characterized in that the horizontal shaft ( 47 ) by a motor ( 50 ), in particular an electric motor, can be driven in rotation for the automatic retraction and / or extension ( 18 ) of the front offset door ( 12 ). 18. Sliding door cabinet according to claim 16 or 17, characterized in that the rotation-driven motor ( 50 ) via a thrust gear ( 51 ) on an offset part ( 42 ') of an extension drive ( 40 ') acts longitudinally displaceably, this part ( 41 ') has a rack ( 45 '), in the rack ( 45 ) a gear ( 49 ) engages and this gear ( 49 ) via a slip clutch ( 57 ) with the horizontal shaft ( 47 ) of the other extension drives belonging to the same front offset door ( 40 ) is connected. 19. Sliding door cabinet according to claim 18, characterized in that the thrust gear ( 51 ) of the motor ( 50 ) with a separate, from the two arms ( 21 ) of the front extension door ( 12 ) separate extension drive ( 40 ') is connected. 20. Sliding door cabinet according to claim 18, characterized in that the thrust gear of the motor ( 50 ) with the rack ( 45 ) of the one of the boom ( 21 ) of the front offset door ( 12 ) associated extension drive ( 40 ) is coupled ( 55 ). 21. Sliding door cabinet according to one or more of claims 16 to 19, characterized in that the along a defined distance ( 56 ) reciprocating thrust drive ( 51 ) of the motor ( 50 ) consists of a worm gear, the worm wheel ( 52 ) of an alternating rotating motor ( 50 ) rotatable and connected via a crank ( 54 ) to the rack ( 45 ') ( 55 ). 22. Sliding door cabinet according to claim 21, characterized by an electrical control device which, when actuating a switch, in particular on one of the doors ( 11 , 12 ), always carries out a half rotation ( 56 ) of the worm wheel ( 52 ), the distance between the two rotating positions of the crank ( 54 , 54 ') on the worm wheel ( 52 ) is adjustable, points in the direction of the rack ( 45 ') and the travel path ( 18 ) between the closed and extended position ( 17 , 19 ) of the front offset door ( 12 ) certainly.