Patent Publication Number: US-10323447-B2

Title: Adjustable guide device for a sliding element

Description:
TECHNICAL FIELD 
     The invention relates to an adjustable guide device for a sliding element, particularly a sliding door, which is slidable along a rail for closing a room opening. 
     BACKGROUND OF THE INVENTION 
     For separating or partitioning rooms or for closing room openings or window openings often sliding elements are used, such as sliding doors made of glass or wood, which are typically guided along a rail by means of two carriages. U.S. Pat. No. 9,290,977B2 discloses a device with carriages that are movable along rails. The device allows moving a sliding element in front of a room opening and finally against the room opening in order to close it tightly. The carriages are arranged on the upper side of the sliding element, wherefore the sliding element at the upper side can precisely be guided against the room opening. Hence, in preferred embodiments a seal or sealing gasket provided between the sliding element and the edge of the room opening can be contacted and compressed by a desired degree. In order to precisely execute this operation not only at the upper side, but also at the lower side of the sliding element, a guide device is provided at the lower side of the sliding element, with which the lower side of the sliding element is guided. 
     Guide devices of this kind, which for example are also disclosed in U.S. Pat. No. 5,678,280A, typically comprise a mounting part and at least one guide member. The mounting part is fastened by mounting screws to the floor and positioned such, that the guide member laterally adjoins the lower side of the sliding element or engages in a groove provided therein so that the sliding element is guided in a defined plane. Due to the fact that after installation often a displacement of the guide device relative to the moving direction of the sliding element is required, the mounting part is often provided with longitudinal slots, through which mounting screws are guided. 
     In the event that an adjustment is required, the mounting screws are released e.g. by a turn, whereafter the guide device is displaced within an adjustment range that is defined by the length of the longitudinal slots. This adjustment procedure can only be executed when the sliding element has been moved away from the guide device. Then it is estimated by what degree the guide device needs to be displaced. It is therefore possible that the adjustment procedure needs to be repeated with considerable effort several times. 
     The U.S. Pat. No. 9,290,977B2 discloses as an alternative a guide device with a guide member, which contacts the lower side of the sliding element, as described, with a guide element and which can be rotated relative to the mounting part. For this purpose, the guide member is eccentrically designed, pivotally supported and enclosed within the mounting part and fixable by means of a fixing screw. After releasing the fixing screw the guide member can be turned, until the guide element is positioned as desired. Due to the integration of the eccentrically designed and therefore relatively voluminous guide member a relatively voluminous mounting part results. In spite of this the adjustment range of the guide device is relatively small and amounts to a fraction of the width of the mounting part. Further, adjustment typically also requires a plurality of trials. Furthermore, it needs to be taken care that the guide member does not automatically get released under the impact of force exerted by the sliding element. 
     WO2012031313 discloses a guide assembly for a folding panel assembly, the guide assembly including a first body section for locating the assembly in a guide channel and a second body section for carrying a bolt that passes through a hinge for attachment to a folding panel, wherein the second body section is pivotally mounted to the first body section so as to adopt either a left or right handed orientation relative to the first body section. This allows replacing two different guide devices by a single guide assembly which can be set either to a first or to a second configuration. In spite of the complex design, this guide assembly, which comprises a joint mechanism and a locking mechanism, does not allow adjustment of the second body section, which can be changed between two opposite positions only. 
     SUMMARY OF THE INVENTION 
     Hence, the present invention is based on the object of providing an improved adjustable guide device for a sliding element, particularly for a sliding door. More particularly an adjustable guide device shall be created, with which the sliding element can precisely be guided at its lower side and can be laterally adjusted as required. 
     It shall be possible to execute the adjustment procedure quickly and precisely and conveniently with little effort. The adjustment procedure shall rapidly lead to an optimal result and repetitive trials can be avoided. 
     The guide device shall allow access preferably from all directions, even when the guide device is in contact with the sliding element, i.e. the sliding door, and possibly engages in a guide groove or guide rail at the lower side of the sliding element. 
     The adjustment range shall be wide enough so that a new installation of a guide device, which has not precisely been positioned, is normally not required. 
     After installation self-acting loosening of the guide device shall be avoided. 
     Further, the guide device shall be slim, so that little space is required and optionally also the immovable part, i.e. the mounting part of the guide device, can be received in a groove or rail provided at the lower side of the sliding element. The guide device shall optically not appear and still be easily operable. 
     This problem is solved with a guide device that comprises the features of claim  1 . Preferred embodiments of the invention are defined in further claims. 
     The adjustable guide device, which serves for guiding a sliding element, such as a sliding door, comprises a mounting part, with a mounting body that is mountable on the floor, a guide member that is pivotally connected to the mounting part and that is designed for interacting with the lower side of the sliding element, and a locking element, with which the connection between the mounting part and the guide member is fixable or releasable. 
     According to the invention the guide member comprises a guide body and a guide foot, which are connected with one another, which guide body comprises a guide column that is aligned along a guide axis and which guide foot is seated on an upper side of the mounting body and is pivotally connected by a joint element to the mounting body so that the guide foot can be turned around a pivot axis, which is distant from the guide axis. 
     The lower side of the guide foot is preferably provided with a first structured contact surface, which adjoins a second structured contact surface that is provided on the upper side of the mounting body. The two contact surfaces preferably comprise three-dimensional structures, which are complementary to one another, so that the lower side of the guide foot engages in the upper side of the mounting body in a form-locking manner and the guide member is securely held even under the impact of greater forces, e.g. the impact of wind onto the sliding element. 
     The first and the second contact surfaces comprise structured elements that engage in a form-locking manner into one another, when the mounting part and the guide member are connected. 
     Hence, the preferably L-shaped guide body is turnable around the pivot axis, i.e. around the front side of the guide foot, so that the guide column, which optionally supports a guide element, can laterally be swivelled out, in order to displace the sliding element into a desired sliding plane. The mounting body and the guide body are arranged upon one another and can have a slim design. The width of the mounting body can advantageously correspond approximately to the diameter of the guide column and/or to the diameter of the guide foot. Hence, the guide device, i.e. particularly the mounting body, can be manufactured with such small dimensions, so that the mounting body can be received fully or partially in a guide groove provided at the lower side of the sliding element. 
     By releasing the bolt shaped joint element, the guide member is released from a firm coupling with the mounting body and can be turned as required over a relatively wide adjustment range that is dependent from the length of the guide foot, which can be dimensioned according to the dimensions of the mounting body along its longitudinal axis. The longitudinal axis of the installed mounting body is preferably aligned in parallel to the running direction of the sliding element, so that a longer guide foot can be supported. The ratio of the length to the width of the mounting body lies preferably in the range from 1:4 to 1:10. The width of the mounting body is preferably not larger than the width of the guide foot, so that the overall width of the guide device corresponds approximately to the width of the guide foot, when the guide column is not swivelled out. 
     After installation, the guide device is typically arranged with the guide axis and the pivot axis vertically aligned. The distance between the pivot axis and the guide axis, which are preferably aligned in parallel to one another, lies preferably in a range from 5 mm to 50 mm, further preferred in a range from 15 mm to 25 mm. The length of the guide foot is selected accordingly. 
     The structures of the contact surfaces are preferably selected such that the guide member can be turned in steps during adjustment procedures and can again be connected in a form-locking manner to the mounting body. 
     In a particularly preferred embodiment the first and the second contact surfaces comprise structured elements that radially extend towards the pivot axis and that engage in a form-locking manner into one another, when the mounting part and the guide member are connected. The structured elements are preferably formed complementary or inverse to one another and exhibit preferably a waveform, which partially or fully surrounds the pivot axis so that the edges of the wave crests and wave hollows are radially aligned to the pivot axis. Since the guide foot can be swivelled out preferably by a maximum of 90° into the one or other direction and the mounting body is relatively slim, in preferred embodiments the contact surfaces are asymmetrically formed. 
     The number of the structured elements, e.g. the wave crests and the wave hollows, is preferably selected such, that the guide member can be turned around the mounting body in steps or increments that are in a range from preferably 5° to 15° and then can be fixed. The guide device can be adjusted in a simple manner, by releasing the guide body from the mounting body and by turning it stepwise forwards or backwards and by fixing it finally. 
     The bolt-shaped joint element is preferably held in a first pivot hole provided in the mounting body, which adjoins the first contact surface or is surrounded therefrom, and in a second pivot hole provided in the guide foot, which adjoins the second contact surface or is surrounded therefrom and is coaxially aligned to the pivot axis. 
     The shaft of the joint bolt preferably comprises a threaded member, which extends into a recess provided in the mounting body. In the recess a locking element, in the form of a nut can be provided that can be turned over the threaded member. By fastening the fixing element the bolt head of the joint bolt can be pressed against the guide foot, so that the first and the second structured contact surfaces are pressed against one another. After releasing the fixing element and the first and second contact surfaces from one another, the guide member can be turned or adjusted as required. The locking element, e.g. the nut, which lies freely in a recess at a height approximately in the centre or the lower side of the mounting body, can be grasped and turned by means of a tool, e.g. an open-ended wrench, in order to release or fasten the guide member. The tool can be guided below the lower edge of the sliding element towards the locking element in order to grasp the locking element. Hence, at the lower side of the sliding element only a small gap of only a few millimetres height needs to be provided, which allows moving the tool towards the locking element. 
     To ensure that the locking element is easily accessible, the pivot axis is located at the end of the mounting body, while receiving openings in the mounting body, which serve for receiving mounting screws, are arranged in the middle and/or on the other end of the mounting body. 
     Preferably, the first pivot hole is provided on a freely exposed cantilever, which extends at one end of the mounting body along its longitudinal axis. Below the cantilever said recess is provided, which serves for receiving the locking element, e.g. the nut. The cantilever, which exhibits the first structured contact surface at its upper side, is preferably an integral part of the mounting body. However, the mounting part can have a modular structure and can be connected to the cantilever e.g. by means of one of the mounting screws. 
     Below the cantilever the mounting body is preferably connected to a securing ring that is provided with a ring opening, which is coaxially aligned with the first and to the second pivot hole. The securing ring serves for receiving an end piece of the joint element, i.e. of the joint bolt. The end piece of the joint bolt forms a securing member, which is held axially movable in the securing ring and which prevents the locking element, which is securely held between the cantilever and the securing ring, to escape from the recess. If the locking element gets released from the threaded member, then it is held by the securing member and the securing ring and can easily be screwed again onto the threaded member. 
     The guide body and the joint element can be connected with one another integrally or by mechanical connecting means, e.g. by a press fitting. The joint element, i.e. the joint bolt preferably comprises a connecting member, which is held in the first pivot hole by press fitting. 
     The guide body and the joint element can also comprise form elements which correspond to one another and by which a stable connection between the guide body and the joint element can be established. Hence forces acting on the guide body can directly be transferred to the mounting body, which preferably is connected by means of at least two mounting screws to the floor. 
     In a further preferred embodiment the mounting body comprises a bearing shell which preferably is aligned in parallel to the guide column and which adjoins the guide foot and introduces acting forces into the mounting body. In this way load is advantageously relieved from the joint connection. 
     The guide column can be provided in the embodiment of a guide element and can exhibit different forms and/or can support running elements, such as rollers or wheels, or gliding elements, such as wing elements or plastic coatings. Hence, the guide column can exhibit a simple column form with any cross-section, e.g. a wing form, or can be equipped with one or a plurality of guide elements, which abut the lower side of the sliding element on one side or both sides or which are guided in a guide groove or guide rail provided therein. 
     The guide column is preferably provided with an axial bore, in which a shaft is seated, which rotatably holds a guide roller or a guide wheel. 
     In a further preferred embodiment the guide column is adjustable in height. Preferably two or more column elements are provided, which can be screwed or coupled with one another in a selectable distance and can be fixed. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention is described below in detail with reference to the drawings, wherein: 
         FIG. 1  shows a sliding element, i.e. a sliding door  8 , which is held slidable by means of a sliding system  7  in front of a door frame  88 , and which exhibits at the lower side a guide groove  81 , which is opened downwards and in which inventive guide devices  1  are engaged, which are mounted at the floor; 
         FIG. 2  shows one of the guide devices  1  of  FIG. 1 , which engages at the lower side into a guide groove  81  of a sliding door  8  shown in longitudinal section, in which a guide rail  82  is provided and which in this embodiment is closed at the front side  83  of the sliding door  8 ; 
         FIG. 3  shows the guide device  1  of  FIG. 2  with the guide member  11 , which engages with a guide element, i.e. a guide wheel  13  in the guide rail  82  shown in a longitudinal section, and a mounting part  12 , which is mounted at the floor and connected by a joint element  15  with the guide member  11 ; 
         FIG. 4 a    shows the guide device  1  of  FIG. 2  in explosion view; 
         FIG. 4 b    shows the guide device  1  of  FIG. 4 a    with the elements of the guide member  11  and the mounting part  12  from a different angle; 
         FIG. 5  shows the mounting part  12  and a guide body  14  of the guide member  1  with structured contact surfaces  123 ,  143  that are facing one another; 
         FIG. 6  shows the guide device of  FIG. 2  with a cut along cutting line A--A shown in  FIG. 7   a;    
         FIG. 7 a    shows the guide device of  FIG. 2  with the guide member  11  not swivelled out; and 
         FIG. 7 b    shows the guide device of  FIG. 2  with the guide member  11  turned to the right side. 
     
    
    
     DETAILED DESCRIPTION 
       FIG. 1  shows a sliding element, i.e. a sliding door  8 , which is slidably held in front of a door frame  88  by means of a sliding system  7 , as shown for example in U.S. Pat. No. 9,290,977B2. The sliding system  7  comprises for example two carriages, which are connected to the sliding element  8  and which are guided by means of one or a plurality of rails along a pathway. The displacement can thereby be executed in parallel to a room opening or in parallel to the room opening up to a closing phase, in which the sliding element in addition is guided against the room opening. In order to tightly close the room opening, it is required that the sliding element is precisely guided at the upper side and at the lower side and is guided in a given distance to the room opening, i.e. to a door frame or a casing  88  provided there. For precisely guiding the sliding element  8  at the lower side, two inventive guide devices  1  are provided at the floor, which engage into a guide groove  81  that has been machined into the lower side of the sliding element  8 . 
     The guide groove  81  shown in  FIG. 1  is open at the front side. As an alternative, in the embodiment of  FIG. 2 , the guide groove  81  is closed at the front side  83  of the sliding element  8 . As described below, in both alternatives convenient access is provided to the guide device  1  for adjustment purposes (see  FIG. 3 ). 
       FIG. 2  shows one of the guide devices  1  of  FIG. 1 , which engages at the lower side into a guide groove  81  of a sliding door  8  shown in longitudinal section, in which a guide rail  82  is provided. The guide rail  82  exhibits a U-profile that is opened downwards, with an intermediate member  821  and side members  822  laterally connected thereto, whose inner sides form running surfaces for guide elements  13 . Below the guide rail  82 , which for example is screwed to the sliding element, a rather large space is kept free within the guide groove  81 , in which the guide device  1  is received partly or completely. Between the lower side of the sliding element  81  and the floor a gap is kept free, through which a tool can be guided (see  FIG. 3 ). Due to the advantageous construction of the guide device  1 , this gap can have little height allowing only the transfer of the tool. 
     The guide device  1  shown in  FIG. 2  comprises a mounting part  12  mountable at the floor and a guide member  11 , which is rotatably connected by means of a joint element  15  to the mounting part  12  and which is lockable by means of a fixing element  16 . The guide member  11  is provided with a guide element, i.e. a guide wheel  13 , which is guided within the guide rail  82  and can roll along its sidewalls  822 . 
       FIG. 3  shows the guide device  1  of  FIG. 2  with the guide member  11 , which engages with a guide wheel  13 , which is supported by a guide body  14 , into the guide rail  82 , which is shown in longitudinal section. The mounting part  12 , which is mounted at the floor by means of two mounting screws  9  (see  FIG. 7 a   ), comprises a mounting body  121 , which at its lower side is provided with a recess  129 . In the recess  129  the locking element, i.e. the nut  16  is provided, with which the threaded bolt  15  is fastened and the guide body  14  can be fixed on the mounting body  121 . 
     Optionally a securing ring  126 , which is connected to the mounting body  121 , extends into the recess  129 , which however exhibits only a little height. Hence, the nut  16  is held practically directly above the floor and can be grasped and turned with a tool, e.g. the open-ended wrench shown. The open-ended wrench can be guided below the door laterally or from the front side, in order to release or fasten the nut  16 . Hence, although the guide device  1  does optically not appear it can conveniently be operated, i.e. adjusted. The guide wheel  13  is guided within the guide rail  82 , the guide body  14  is received completely and the slim mounting body  121  to a major part in the guide groove  81  and is invisible from the outside. 
       FIG. 4 a    and  FIG. 4 b    show the guide device  1  of  FIG. 2  in explosion view with the mounting body  121  of the mounting part  12  and the guide member  11 , which comprises the guide body  14  that is firmly connected to the joint element, i.e. the joint bolt  15 , and the guide element, i.e. guide wheel  13  that is held by a shaft  131 . Further shown is the locking element  16 , with which the joint bolt  15  can be fastened. In  FIG. 4 a   , the device parts, except the fixing element  16 , are elevated in vertical direction, whereby, on the one hand, the guide body  141  and the joint bolt  15 , and, on the other hand, the shaft  131  and the guide wheel  13  are connected with one another. 
     In  FIG. 4 b   , the device parts are turned against one another in order to improve the view to the relevant features. 
     The guide body  14  comprises a guide column  141  and a guide foot  142  that is connected in one part to the guide column  141 . The guide foot  142  is placed onto the upper side of the mounting body  121  and is therefore not integrated into the mounting body  121 . Hence, an elongated and symmetric mounting body  121  can be provided with a slim design.  FIG. 7 a    shows that the width of the mounting body  121  corresponds approximately to the diameter of the guide column  141 . Hence, in comparison to the guide groove  81  provided at the lower side of the sliding element  8 , the guide device  1  is designed very narrow and can still be adjusted over a wide range. 
     The guide foot  142  is provided with a pivot hole, i.e. pivot bore  140  (see  FIG. 4 b   ), through which the shaft  152 ,  153 ,  154 ,  155  of the joint bolt  15  has been inserted. 
       FIG. 4 b    shows that the shaft of the joint bolt  15  comprises a plurality of axially displaced shaft members  152 ,  153 ,  154  and  155 , which are stepped relative to one another and which fulfil different functions. Shaft member  152  is a connecting member with vertically extending furrows, which are deformed under pressure within the pivot bore  140  of the guide foot  142 , so that a stable connection results, which is not releasable during operation of the guide device  1 .  FIG. 4 a    shows the guide body  141  and the joint bolt as a unity. For securing and taking load off this connection a form-locking connection between the guide body  141  and the joint bolt  15  is provided in addition. The guide column  141  is provided with a coupling groove  1411  that extends in parallel to the longitudinal axis y and that is facing the pivot bore  140 , i.e. the bolt head  151 . The bolt head  151  is provided with a cut that corresponds to the form of the coupling groove  1411 . Hence, the bolt head  151  is held in a form-locking manner in the coupling groove  1411  and cannot be turned, whereby load on the connection between the connecting member  152  of the shaft of the joint bolt  15  and the guide foot  142  is reduced, when forces are acting. 
     The passage member  153  of the shaft of the joint bolt  15 , which adjoins the connecting member  152  with reduced diameter, is rotatably held within a pivot bore  120  provided in the mounting body  121 . 
     The threaded member  154 , which adjoins the passage member  153  with reduced diameter, serves for interacting with the nut  16 . The securing member  155 , which adjoins the threaded member  154  with reduced diameter, serves for the introduction into the securing ring  126 , which assures that the nut  16  when released from the threaded member  154  cannot escape. Hence, the nut  16  is held between a cantilever  124  of the mounting body  121 , which is provided with the related pivot bore  120 , and the securing ring  126 . The cantilever  124  and the securing ring  126  are preferably integral members of the mounting body  121  or are members of modules which are connected to the mounting body  121  in a form-locking manner and are fixed, e.g. by means of one of the mounting screws  9 . For the introduction of the mounting screws  9 , the mounting body  121  is provided with mounting bores  127 ,  128 . The first mounting bore  127  is provided approximately in the centre of the mounting body  121 . The second mounting bore  128  is provided at the end of the mounting body  121 , which lies opposite to the end of the mounting body  121 , at which the cantilever  124  is provided. Hence, the mounting body  121  is built as a kind of springboard with a pedestal that is mounting with the mounting screws  9  at the floor and with a stable cantilever  124 , which forms the springboard. Further, a bearing shell  125  is provided, which adjoins the cantilever  124  at the front side and with which at least one sided a form-locking connection between the guide foot  142  and the mounting body  121  is reached, which again reduces the load on the connection between the joint bolt  15  and, on the one hand, the mounting body  121  and, on the other hand, the guide body  14 . 
     In the embodiment shown, structured contact surfaces  143 ,  123  are provided at the lower side of the guide foot  142  and at the upper side of the mounting body  121 , i.e. of the cantilever  124 , which comprise forms that are complementary to one another and which engage in different turning positions of the guide foot  142  relative to the mounting body  121  always in a form-locking manner into one another. The structures of the contact surfaces  123 ,  143  exhibit regularly arranged structured elements, which correspond to one another, i.e. which are complementary to one another. For this purpose, mutually complementary depressions and elevations may uniformly be repeated several times. The recesses may be openings, bores, or wave hollows. In contrast, the elevations may be formations, cones or wave crests. Bores and cones engaging into one another result in good form-locking connections. However, such structured elements are not easily released from one another for the purpose of making adjustments. Particularly advantageous are therefore wave forms, which are easily releasable from one another and with which good form-locking connections can still be achieved. 
     In the preferred embodiment shown, the first and the second contact surfaces  123 ;  143  comprise structured elements that radially extend to the pivot axis x and that engage in a form-locking manner into one another, after the connection of the mounting part  12  and the guide member  11  has been established. 
     In a particularly preferred embodiment wave-shaped structured elements are provided, which partially or, as shown in  FIG. 4 b   , completely surround the pivot axis x, i.e. the pivot bores  120 ,  140 . The wave crests and wave hollows always extend radially to the pivot axis x, whereby the extension in direction to the mounting bores  127 ,  128  is largest and is significantly reduced laterally and in direction to the bearing shell  125 . Hence, the contact surfaces  123 ,  143  with their structured elements are therefore designed asymmetrically with reference to the pivot axis x. 
     Number and form of the structured elements are selected such, that the guide member  11  is turnable around the mounting body  121  stepwise with increments in a range from preferably 5° to 15° and is fixable. Preferably, the structured elements are an integral part of the mounting body  121  and of the guide foot  142  and in preferred embodiments are coated or processed, e.g. hardened. Alternatively, the structured elements can also be provided on a module, which is connected to the mounting body  121 , i.e. the guide foot  142 . 
     The guide column  141  and the shaft  131  of the guide element  13 , which can be inserted into an axial bore  149  provided at the upper side of the guide column  141 , are coaxially aligned with their longitudinal axes to a guide axis y, which after installation of the guide device  1  is normally vertically aligned. The shaft  152 ,  153 ,  154 ,  155  of the joint bolt  15  however defines a pivot axis x, around which the guide body  14 , i.e. the guide column  141 , is turnable after the joint bolt  15  has been released. The distance between the pivot axis x and the guide axis y lies preferably in a range from 5 mm to 25 mm, further preferred in a range from 10 mm to 20 mm. The length of the guide foot  142  is dimensioned accordingly. 
     Hence, after releasing the fixing element  16 , the guide member  14  can be turned to the one or the other side preferably by at least approximately +/−90° to the outside, so that the guide axis y, which defines the sliding plane of the sliding element  8 , can be displaced outwards by a corresponding degree to the one or the other side. 
       FIG. 5  shows the mounting body  121  with the cantilever  124  provided with the first wave shaped structured contact surface  123  at its upper side, and the guide body  14  with the guide foot  142  provided with the second wave shaped structured contact surface  143  at its lower side. Below the cantilever  124 , the securing ring  126  with a ring opening  1260  is shown, which serves for receiving the securing member  155  of the shaft of the joint bolt  15 . 
       FIG. 6  shows in sectional view the guide device of  FIG. 2  cut along line A--A shown in  FIG. 7 a   . Shown are the elements of the joint bolt  15  with connecting member  152  received by the guide foot  142 , passage member  153  received by the mounting body  121 , i.e. the cantilever  124 , threaded member  154  connected to the nut  16  and securing member  155  held in the securing ring  126 . Further drawn is pivot axis x which extends coaxially to the joint bolt  15 . It is further shown that the shaft  131  of the guide element, i.e. of the guide wheel  13  is inserted into the axial bore  149  provided in the guide column  141 . It is further shown that guide foot  142  with the second contact surface  141  at its lower side is seated on the first contact surface  123  provided at the upper side of the mounting body  121 . Further the guide axis y is shown, which coaxially extends through the guide column  141  and the shaft  131 . 
     The pivot axis x and the guide axis y are located distant from one another and are aligned in parallel to one another. The guide member  11  is held centrally above the mounting body  121  and is not swivelled out to the one or the other side, wherefore the guide axis y intersects the longitudinal axis z of the mounting body  121 , which also intersects the pivot axis x regardless of the turning position of the guide member  11 . The distance between the pivot axis x and the guide axis y corresponds at least approximately to the diameter of the guide column  141  and coarsely also to the diameter of the guide wheel  13 . Hence, the guide axis y can be swivelled approximately by half the width of the mounting body  121  to the one or the other side, so that a relatively large adjustment range results, with which even larger deviations of the guide device  1  from a correct position can be compensated. 
       FIG. 7 a    shows the guide device of  FIG. 2  with the guide member  11  without swivelling out. 
       FIG. 7 b    shows the guide device of  FIG. 2  with the guide member  11  turned to the right side. 
     LIST OF REFERENCES 
     
         
           1  guide device 
           11  guide member 
           12  mounting part 
           120  first pivot hole 
           121  mounting body 
           123  first structured contact surface 
           124  cantilever 
           125  bearing shell 
           126  securing ring 
           1260  ring opening 
           127 ,  128  receiving openings 
           129  recess 
           13  guide element, guide wheel 
           131  shaft 
           14  guide body 
           140  second pivot hole 
           141  guide column 
           1411  coupling groove 
           142  guide foot 
           143  second structured contact surface 
           149  axial bore 
           15  joint element, preferably joint bolt 
           151  bolt head 
           152  connecting member 
           153  passage member 
           154  threaded member 
           155  securing member 
           16  locking element 
           7  guide system with guide rails and carriages 
           8  sliding element, sliding door 
           81  guide groove 
           82  guide rail 
           821  intermediate member of the guide rail  8   
           822  lateral members of the guide rail  8   
           83  front side of the guide groove  81  (open/closed) 
           88  frame 
           9  claims 
         x pivot axis 
         y guide axis