DK2687129T3

DK2687129T3 - A device for supporting and moving a chair drive.

Info

Publication number: DK2687129T3
Application number: DK13003584.3T
Authority: DK
Inventors: Ralf Hermanns
Original assignee: Goracon Eng Gmbh
Priority date: 2012-07-18
Filing date: 2013-07-16
Publication date: 2017-01-09
Also published as: PL2687129T3; DE202013012154U1; EP2687129A1; EP2687129B1; ES2607229T3

Description

[0001] Opfindelsen angår et indretning til støtte og bevægelig føring af en stol i en føringskulisse, som er tilvejebragt i et hus, og som er udformet som en langhulsføring og har en vogn, som er bevægelig i føringskulissen og understøtter stolens stolemodtager, hvor vognen omfatter en føringsslæde og kan bevæges langs en føringsskinne, som er anbragt inden i føringskulissen, idet føringsskinnen er udformet som en enskinneføring, som er udformet centralt i føringskulissen, og som er tilknyttet til de langsgående yderkanter af de langsgående sider af føringskulissen, som er tilstødende til føringsslædens slædekrop.The invention relates to a device for supporting and moving a chair in a guide backing provided in a housing, which is designed as a long-hole guide and having a carriage which is movable in the guide backing and supporting the chair's chair receiver where the carriage comprises a guide slide and may be moved along a guide rail disposed within the guide backing, the guide rail being formed as a single rail guide formed centrally in the guide backing and connected to the longitudinal outer edges of the longitudinal sides of the guide backing which are adjacent to the guide sleigh body.

[0002] Indretninger til at støtte og bevægeligt føre stole af førnævnte art anvendes for eksempel i offentlige bygningers mødelokaler, hvor indretningen for eksempel er indfældet i lokalets gulv for at gøre det muligt at forandre stolens position i forhold til et fastmonteret bord. Derudover skal det sikres, at stolen, når den ikke er optaget, automatisk bevæger sig via et skråt plan til en hvileposition, i hvilken sædet videst muligt befinder under det fastmonterede bord. Følgelig indtages de regulære stolepositioner automatisk for at tilvejebringe tilstrækkelige passager bag stolens ryglænsflade.For example, devices to support and move chairs of the aforementioned type are used in meeting rooms of public buildings, where, for example, the device is recessed into the floor of the room to enable the chair's position to be changed in relation to a fixed table. In addition, it must be ensured that, when not occupied, the chair automatically moves via an inclined plane to a resting position in which the seat is as far as possible below the fixed mounting table. Accordingly, the regular chair positions are automatically occupied to provide sufficient passages behind the backrest surface of the chair.

[0003] En stoleføring af den førnævnte art kendes for eksempel fra DE 203 20 975 Ul, i hvilken der som føringskulisse er tilvejebragt en langhulsføring i huset, og en stolemodtagermuffe tjener som stolemodtager, hvis nedre ende er udformet indsnævrende og konisk nedadtil og er indsat formsluttende i en tilsvarende udformet åbning af vognen.A chair guide of the aforementioned kind is known, for example, from DE 203 20 975 Ul, in which a guide hole is provided as a guide hole in the housing, and a chair receiver sleeve serves as a chair receiver, the lower end of which is configured narrowly and tapered downwards and is inserted in a correspondingly shaped opening of the carriage.

[0004] I den byggede udgave af denne stoleføring er der tilvejebragt en toskinneføring, som føringsskinne, som hver især udstrækker sig i de to yderkantsområder af langhulsføringen og som skal fastgøres vedhjælp af mange skruer som tilslutningsmidler. På grund af forskellige tilspændingsmomenter af disse skruer, som ikke kan undgås ved monteringen af en sådan en stoleføring, vil det i dette tilfælde kræve besværlige efterjusteringsarbejder. Derudover er det med denne toskinneudførsel svært at tilvejebringe en afdækning.In the built version of this chair guide there is provided a two-rail guide, such as guide rail, each extending into the two outer edge regions of the long-hole guide and which must be secured using many screws as connecting means. Due to various tightening moments of these screws, which cannot be avoided in the installation of such a chair guide, in this case it will require cumbersome post-adjustment work. In addition, with this two-rail version, it is difficult to provide a cover.

[0005] Indretninger til at føre og støtte en stol er kendes fra DE 20 2011 001 821 Ul, hvor stolemodtageren er tildelt en elektrisk, mekanisk eller pneumatisk, aktiverbar og deaktiverbar bremseindretning, ved hjælp af stolemodtageren hvilken med stolens stolemodtager i føringskulissen, kan fastholdes i en indstillelig køreposition. Det er i forhold til dette den foreliggende opfindelses opgave, at forbedre en indretning til at støtte og bevægeligt føre en stol af den indledningsvis nævnte art, således at den med reduceret besvær kan monteres funktionsdueligt og bevæges. Derudover skal der være skabt forudsætninger for at kunne tilvejebringe en afdækning for langhulsføringen på en funktionsduelig og nem monterbar måde.Devices for guiding and supporting a chair are known from DE 20 2011 001 821 Ul, where the chair receiver is assigned an electric, mechanical or pneumatic, activatable and deactivating braking device, by means of the chair receiver which with the chair's chair receiver in the guide back can be retained in an adjustable driving position. In relation to the object of the present invention, it is to improve a device to support and move a chair of the kind mentioned above, so that it can be fitted and moved with reduced difficulty in a functional manner. In addition, prerequisites must be created in order to provide a cover for the long-hole guide in a functional and easily mountable manner.

[0006] Til løsningen af denne opgave udmærker indretningen af den indledningsvist nævnte art sig ved, at huset omfatter et hulprofil, som er i det væsentlige C-formet eller har et i det væsentlige rektangulært tværsnit og er forsynet med mindst én kørenot i dækhulprofildelen, som vender mod stolen, til gennemføring af en del af stolemodtageren, hvorved hele huset, sammen med føringsskinnen og vognen kan overføres til en position, som er skråtstillet i forhold til vandret, ved hjælp af højdejusteringer.For the solution of this task, the device of the type mentioned initially is characterized in that the housing comprises a hollow profile which is substantially C-shaped or has a substantially rectangular cross-section and is provided with at least one driving groove in the tire profile section. facing the chair, for carrying a portion of the chair receiver, whereby the entire housing, together with the guide rail and the trolley, can be transferred to a position which is inclined to the horizontal by means of height adjustments.

[0007] Dermed er der stillet en indretning til støtte og bevægelig føring af en stol til rådighed, ved hvilken der på grund af de som føringsskinner tilvejebragte enskinneføringer skal udformes løbeflader på hver side af et sænket eller ophøjet område, som begge slædekroppe afføringsslæden sikkert kan glide langs. Monteringen af disse enskinneføringer er væsentligt forenklet og rummer ikke faren for, at føringsslædens fejlløbsegenskaber indskrænkes på grund af forskellige tilspændingsmomenter.There is thus provided a device for supporting and movable guide of a chair, in which, due to the single guide guides provided as guide rails, running surfaces must be formed on each side of a lowered or raised area, which both sled bodies can safely dispose of the stool. glide along. The mounting of these single rail guides is substantially simplified and does not pose the risk of the guide slider's failure characteristics being reduced due to different tightening torques.

[0008] Huset har en dækhulprofildel med et i det væsentlige C-formet eller i det væsentlige rektangulært tværsnit og har i den dækhulprofildel, som vender mod stolen, mindst én kørenot til gennemføring af en del af stolemodtageren, hvorved hele huset, sammen med føringsskinnen og vognen, kan bevæges til en position, som er skråtstillet i forhold til vandret, ved hjælp af højdejusteringer.The housing has a tire profile section with a substantially C-shaped or substantially rectangular cross-section and has in the tire profile section facing the chair at least one driving note for carrying part of the chair receiver, whereby the entire housing, together with the guide rail and the carriage, can be moved to a position which is inclined to the horizontal by means of height adjustments.

[0009] Dermed er der stillet en indretning til støtte og bevægelig føring af en stol til rådighed, i hvilken huset ikke skal fremstilles massivt, dvs. af et massivt materiale, for at kunne skabe et indre hulrum til at modtage føringsskinnen, men hvor huset først skal fremstilles hussidigt ud fra et blikprofil, ved laserudskæring. Dette kan ske således, at dette eksempelvis er forsynet med en dækhulprofildel (hovedstykke) f.eks. formet af en afdækningsplade, som har mindst én kørenot, men dog fortrinsvist to kørenoter arrangeret med afstand til hinanden for at modtage dele af stolemodtageren.Thus, a device is provided for supporting and movable guide of a chair in which the housing is not to be massively manufactured, ie. of a solid material, in order to create an inner cavity to receive the guide rail, but where the housing must first be manufactured domestically from a gaze profile, by laser cutting. This can be done so that, for example, this is provided with a tire profile section (head piece) e.g. formed by a cover plate having at least one driving note, but preferably two driving notes arranged at a distance from each other to receive portions of the chair receiver.

[0010] En sådan dækhulprofildel kan i det mest simple tilfælde fastholdes med magneter på en basishusdel, eksempelvis en bukket grundplade, således at den med få greb kan fjernes uden værktøj. For at afstive denne bukkede basishusdel, kan den lukkes ved de åbne ender med endeplader, som er skruet eller svejset på. Dermed kan huset produceres med omkostningsgavnlige blikkomponenter. For at kunne udnytte tyngdekraften for en automatisk bevægelse af stolen sammen med stolemodtageren langs føringskulissen, uden at det er nødvendigt, at skulle udføre betydelige bygge- og monteringsmæssige foranstaltninger, er der tilvejebragt, at huset sammen med den monterede føringsskinne, vognen, stolemodtageren og lignende dele, via højdejusteringer kan overføres til en position, som er skråtstillet i forhold til vandret, således at hele indretningen sammen med den monterede stol, automatisk bevæger sig til en ikke-anvendelsesposition ved vægtaflastning, altså når stolen ikke er optaget, som følge af tyngdekraften, således at stolen for eksempel befinder sig under en bordflade med sin siddeflade, og at der er skabt tilstrækkelig gennemgangsafstand bag stolens ryglæn. Der kan for eksempel tilvejebringes afdækningsblik som dækhulprofil, som fastholdes ved hjælp af magneter, hvor dette afdækningsblik kan fjernes uden værktøj, hvilket gør højdejusteringerne tilgængelige.Such a cover hole profile part can, in the simplest case, be retained with magnets on a base housing part, for example a bent base plate, so that it can be removed without tools with a few grips. To support this bent base housing, it can be closed at the open ends with end plates screwed or welded. Thus, the house can be produced with cost-effective gaze components. In order to utilize gravity for automatic movement of the chair along with the chair receiver along the guide back, without the need for significant construction and installation measures, it is provided that the housing together with the mounted guide rail, trolley, chair receiver and the like parts, via height adjustments, can be transferred to a position which is inclined to the horizontal, so that the whole device together with the mounted chair automatically moves to a non-use position by weight relief, ie when the chair is not occupied due to gravity , such that the chair is, for example, under a table surface with its seating surface, and that sufficient clearance distance has been created behind the chair's backrest. For example, cover sheets may be provided as a cover hole profile, which are held by means of magnets, where this cover sheet can be removed without tools, making the height adjustments available.

[0011] Navnlig er det foretrukket, når dækhulprofilen og for eksempel også afdækningsblikket, på sin side kan højdejusteres via afstandsjusteringer i forhold til huset, således at den indstillede skråstilling af huset i forhold til rummets gulvoverflade bliver kompenseret i højden, således at hele indretningen kan indfældes i gulvet, gulvparallelt med rummets gulvniveau, via højdekompensation eller afstandsindstilling af dækhulprofildelen, som regel altså afdækningsblikket. Til dette kan stolemodtageren for eksempel også have et forbindelsesområde til en stol, som har en vinkel på > 90° i forhold til vandret, således at stolen indtager en ret vinkel i forhold til bundoverfladen, på trods af indretningens skråtstilling.In particular, it is preferred when the cover hole profile and, for example, the cover look, can in turn be height-adjusted via distance adjustments relative to the housing, so that the set inclination of the housing with respect to the floor surface of the room is compensated in height, so that the whole device can can be recessed into the floor, in parallel with the floor level of the room, via height compensation or distance adjustment of the tire profile section, usually the cover look. For this, the chair receiver may, for example, also have a connection area to a chair having an angle of> 90 ° with respect to the horizontal, so that the chair occupies a right angle with respect to the bottom surface, despite the inclined position of the device.

[0012] Yderligere fordelagtige udførelsesformer fremgår af de øvrige underkrav, den følgende beskrivelse og tegningerne. På tegningen viser:Further advantageous embodiments are apparent from the other subclaims, the following description and the drawings. In the drawing:

Fig. 1 i et delvist afskåret sidebillede en udførelsesform af en indretning ifølge opfindelsen;FIG. 1 in a partially cut away side view of an embodiment of a device according to the invention;

Fig. 2 et delvist afskåret billede set ovenfra af udførelsesformen ifølge Fig. 1;FIG. 2 is a partially cutaway top view of the embodiment of FIG. 1;

Fig. 3 et tværsnitsbillede af udførelsesformen ifølge Fig. 1;FIG. 3 is a cross-sectional view of the embodiment of FIG. 1;

Fig. 4 i en perspektivafbildning en udførelsesform afen indretning ifølge opfindelsen;FIG. 4 is a perspective view of an embodiment of a device according to the invention;

Fig. 5 en afbildning analog til den i Fig. 4 uden afbildningen af dækhulprofildelen (afdækningsplade);FIG. 5 is a view analogous to that of FIG. 4 without the depiction of the tire profile section (cover plate);

Fig. 6 en afbildning set ovenfra af udførelsesformen ifølge Fig. 5;FIG. 6 is a top plan view of the embodiment of FIG. 5;

Fig. 7 et sidebillede af udførelsesformen ifølge Fig. 4, ogFIG. 7 is a side view of the embodiment of FIG. 4, and

Fig. 8 en afbildning set forfra af udførelsesformen ifølge Fig. 7.FIG. 8 is a front view of the embodiment of FIG. 7th

[0013] På tegningen er overensstemmende dele af indretningen forsynet med overensstemmende henvisningstal.In the drawing, corresponding parts of the device are provided with corresponding reference numerals.

[0014] I sin grundlæggende konstruktion, skal den viste indretning til at støtte og bevægeligt føre en stol, være som beskrevet i de tyske brugsmodeller 203 20 975 U1 og 20 2011 001 821.0. Derefter er indretningen til at støtte og bevægeligt føre en stol generelt nummereret som 1 og huset nummereret som 2. Huset 2 har en langhulsføring 3, i hvilken en vogn 4 er bevægeligt ført som en del af en føringsslæde 4.1. På vognen 4 er der tilvejebragt en stolemodtager 5, som nemt og hurtigt kan fastgøres via en kontramøtrik 6. Stolemodtageren 4 er forsynet med fastgørelsesskruer 7, på hvilke to slædekroppe 8 skal fastgøres demonterbart. Begge disse slædekroppe 8 er tilknyttet til en føringsskinne 9, som er udformet som en enskinneføring, der har et ophøjet område 10. På begge side af dette ophøjede område 10, udstrækker der sig løbeflader 11, langs hvilke slædekroppene 8 glider. Disse løbeflader 11 frembyder ideelle forudsætninger for også at tilvejebringe et bremsesystem, som grundlæggende er beskrevet i den tyske brugsmodel 20 2011 001 821.0. Til indholdet af offentliggørelsen af disse brugsmodelskrifter henvises der hermed udtrykkeligt, og det gøres til en del af den foreliggende beskrivelse og dermed til indholdet af den foreliggende ansøgning.In its basic construction, the device shown to support and move a chair must be as described in German utility models 203 20 975 U1 and 20 2011 001 821.0. Thereafter, the device for supporting and moving a chair is generally numbered as 1 and the housing is numbered as 2. The housing 2 has a long hole guide 3, in which a carriage 4 is movably guided as part of a guide carriage 4.1. On the carriage 4 is provided a chair receiver 5 which can be easily and quickly fastened via a counter nut 6. The chair receiver 4 is provided with fastening screws 7 on which two carriage bodies 8 must be removably fastened. Both of these carriage bodies 8 are connected to a guide rail 9 which is formed as a single rail guide having a raised area 10. On either side of this raised area 10, running surfaces 11 extend along which the carriage bodies 8 slide. These running surfaces 11 provide ideal conditions for also providing a braking system, which is basically described in the German utility model 20 2011 001 821.0. The contents of the publication of these utility model documents are hereby expressly referred to and are made part of the present description and thus the contents of the present application.

[0015] Enskinneføringen som føringsskinne 9 med dens centrale anordning inden i langhulsføringen 3 frembyder ideelle forudsætninger for at tilvejebringe et afdækningsbånd 12. Dette afdækningsbånd 12 kan være udformet som et endeløst afdækningsbånd med en burrelukning 13 tilvejebragt ved enderne. Dette afdækningsbånd 12 er ført via bevægelige ruller 14 ved de respektive ender af langhulsføringen 3 og kan bevæge sig frem og tilbage sammen med vognen 4, stolemodtageren 5 og dermed stolen.The single rail guide as guide rail 9 with its central device within the long hole guide 3 presents ideal conditions for providing a cover band 12. This cover band 12 may be formed as an endless cover band with a cage closure 13 provided at the ends. This cover band 12 is guided through movable rollers 14 at the respective ends of the long hole guide 3 and can move back and forth together with the carriage 4, the chair receiver 5 and thus the chair.

[0016] Der er tilvejebragt skruer 7 på vognen 4, nemlig i alt otte, således at slædekroppe 11 nemt tilvejebringes, men også udskiftes. Enskinneføringen er fastgjort i huset via skruer 15. I nærmere detaljer, som ikke er vist, kan der i føringen af afdækningsbåndet også være tilvejebragt magneter, som samvirker med et metallisk område af afdækningsbåndet 12, for at lette føringen af afdækningsbåndet under bevægelsen af stolen og dermed af afdækningsbåndet 12.Screws 7 are provided on the carriage 4, namely a total of eight, so that carriage bodies 11 are easily provided but also replaced. The single rail guide is secured in the housing via screws 15. In further detail not shown, magnets which cooperate with a metallic region of the cover band 12 may also be provided in the guide of the cover band to facilitate the guide band during the movement of the chair and hence of the cover band 12.

[0017] Samlet set er der kun tilvejebragt en firepunktsfastgørelse 16, hvorved monteringen også er væsentligt lettet.Overall, only a four-point attachment 16 is provided, whereby the mounting is also substantially facilitated.

[0018] I udførelsesformen ifølge Fig. 4 har indretningen et hus 22, som i tværsnit er i det væsentlige C-formet. Dette hus er fremstillet af et laserskåret blikudsnit med bukkede yderkanter, og kan derfor fremstilles billigt. Ved de åbne ender er der svejset endeplader 23 på huset 22. I den dækhulprofildel 24, som i den monterede tilstand vender mod stolen, der i den fortrukne udførselsform er udformet som en afdækningsblikplade, er der tilvejebragt to kørenoter 25 og 26, som en del 27 af stolemodtageren 28 går gennem. Stolemodtageren 26 kan sammen med den monterede stol køre eller glide langs kørenoterne 25 og 26 og gennem kørenoterne 25 og 26.In the embodiment of FIG. 4, the device has a housing 22 which is substantially C-shaped in cross-section. This housing is made of a laser cut tincture with curved outer edges and can therefore be manufactured inexpensively. At the open ends there are welded end plates 23 on the housing 22. In the tire profile section 24 which in the mounted state faces the chair, which in the preferred embodiment is designed as a cover sheet, two driving notes 25 and 26 are provided as part 27 of the chair receiver 28 go through. The seat receiver 26 can, together with the mounted chair, travel or slide along the driving notes 25 and 26 and through the driving notes 25 and 26.

[0019] Som det nærmere fremgår af Fig. 5 og 6 er der mellem de bukkede kanter 22.2 og 22.1, som vender mod hinanden, udformet en langhulsføring 29, som i den monterede tilstand skal lukkes af afdækningspladen 24. Der er anbragt en føringsskinne 210 i denne langhulsføring 29.[0019] As will be more apparent from FIG. 5 and 6, a long hole guide 29 is formed between the curved edges 22.2 and 22.1 facing each other, which in the mounted state must be closed by the cover plate 24. A guide rail 210 is arranged in this long hole guide 29.

[0020] Som det også fremgår nærmere af Fig. 6, er stolemodtageren 28 (stolebenmodtageren) fastgjort til en stoleplade 211. Denne er igen forbundet til en vogn 212, som danner en føringsplade med gummipuffere 213 ved enderne, der virker som endeanslag. Vognen 212 køres langs føringsskinnen 210.[0020] As can also be seen in more detail in FIG. 6, the chair receiver 28 (the chair leg receiver) is attached to a chair plate 211. This is again connected to a carriage 212 which forms a guide plate with rubber buffers 213 at the ends acting as end stops. The carriage 212 is driven along the guide rail 210.

[0021] Som det fremgår nærmere af Fig. 7 og 8, skal huset 22 sammen med endepladerne 23, stolemodtageren 28 og afdækningspladen 24, bringes i en position, som er skråtstillet via højdejusteringer 214, således at huset 22 hælder i forhold til vandret. Denne hældning i forhold til vandret kan kompenseres via afstandsjusteringer 215, således at afdækningsblikpladen 24 kan indfældes parallelt i forhold til gulvet i et rum, selvom det hus, der befinder sig nedenunder, er skråtstillet. Afdækningsblikpladen 24 kan fastholdes på huset 22 ved hjælp af magneter 216.[0021] As can be seen in more detail in FIG. 7 and 8, the housing 22, together with the end plates 23, the chair receiver 28 and the cover plate 24, must be brought into a position which is inclined via height adjustments 214 so that the housing 22 is inclined relative to the horizontal. This inclination with respect to the horizontal can be compensated by spacing adjustments 215, so that the cover sheet 24 can be folded in parallel with the floor of a room, even if the housing located below is inclined. The cover plate 24 can be secured to the housing 22 by magnets 216.

Claims

PATE NTK RAV

Device (1) for supporting and moving guide a chair in a guide backing (3) provided in a housing (22), which is formed as a long-hole guide (3) and has a carriage (4) which is movable in the guide backdrop (3) and supports the chair receiver (5), the carriage (4) comprising a guide carriage (4.1) and movable along a guide rail (9) arranged within the guide backdrop (3), the guide rail (9) ) is formed as a single rail guide which is formed centrally in the guide backing (3) and which is connected to the longitudinal outer edges (3.1) of the longitudinal sides of the guide backing (3), which is adjacent to the guide body (4.1) of the guide carriage (8) ), wherein the housing (22) comprises a hollow profile element which is substantially C-shaped or has a substantially rectangular cross-section and is provided with at least one driving groove (25, 26) in the tire profile section (24) facing the chair. , for carrying a portion (27) of the chair receiver (28), known suitable in that the entire housing (22), together with the guide rail (210) and the carriage (211), can be transferred to a position which is inclined to the horizontal by means of height adjustments (214).

Device according to claim 1, characterized in that the housing (22) consists of a base plate which is bent to form a C-shaped profile element and is stiffened and closed at the open ends with two glare plates (23).

Device according to claim 2, characterized in that the end plates (23) are welded or screwed to the base plate at the open ends.

Device according to one of claims 1 to 3, characterized in that the cover hole profile part (24) facing the chair is provided as a tinplate cover plate.

Device according to one of Claims 1 to 4, characterized in that two distance grooves (25, 26) are provided in the tire hole profile part (24).

Device according to one of claims 1 to 5, characterized in that the chair receiver (28) comprises a chair receiving part having an angle of> 90 ° to the horizontal.

Device according to one of claims 1 to 6, characterized in that the height adjustments (214) are provided as adjustable screws which can be screwed into the housing (22).

Device according to claim 7, characterized in that the adjusting screws are available to an operator when a separately designed tire profile section (24) has been removed.

Device according to one of claims 1 to 8, characterized in that the carriage (211) is formed as a guide plate with rubber buffers (213) arranged on the end surfaces of the guide plate as end stop.

Device according to one of claims 1 to 9, characterized in that the separately formed tire profile section (24) is height adjustable with respect to the housing (22) by means of distance adjusting devices (215) provided on the housing (22).

Device according to one of Claims 1 to 10, characterized in that the separately formed cover hole profile part (24) can be secured to the housing by means of magnets (216).

Device according to claim 11, characterized in that the guide rail (9) comprises as a single guide guide an raised area (10), central to the guide backing, and running surfaces (11) on each side of the raised area (10) are provided along which the carriage body (8) slides.

Device according to claim 12, characterized in that a retracted area of the carriage (4) is attached to the raised area (10).

Device according to one of claims 11 to 13, characterized in that the running surfaces (11) are removably fixed to the carriage (4).

Device according to one of claims 11 to 14, characterized in that, the single rail guide (9) as a guide rail is associated with a cover extending along the guide backing (3).

Device according to claim 15, characterized in that the cover is formed as a cover band (12) extending over roller members (14) provided at the ends of the guide backing (3) and covering the single rail guide (9) upwards.

Device according to claim 16, characterized in that the cover band (12) is movable along with the chair and extends above and below the guide backing (3) as an endless cover.

Device according to claim 16 or 17, characterized in that the cover band (12) is formed at least in some areas of metal and in that the housing (2) comprises magnets for holding the cover band (12).

Device according to one of claims 11 to 18, characterized in that the chair receiver (5) can be fixed to the carriage (4) by means of a screw connection having a locking nut (6).

Device according to one of claims 11 to 19, characterized in that the housing (2) can be secured to a device holder by means of a four-point fastener (16) with integrated height adjustment.

Device according to one of claims 16 to 20, characterized in that the ends of the ends (12) of the cover band can be fixed to each other by means of snap fastening.

Device according to claim 21, characterized in that the snap-fastening of the ends (12) of the cover strip is formed as a cage closure.

Device according to one of Claims 11 to 22, characterized in that a braking system (5) which is electrically, mechanically or pneumatically activatable and deactivated by means of which the seat receiver (5), together with the seat receiver (5) can be held in an adjustable driving position in the guide back (3).