DK159803B

DK159803B - Height-adjustable furniture

Info

Publication number: DK159803B
Application number: DK514388A
Authority: DK
Inventors: Kim Fjelloe-Jensen
Original assignee: Fjelloe Jensen A S
Priority date: 1988-09-15
Filing date: 1988-09-15
Publication date: 1990-12-10
Also published as: DK159803C; DK514388D0; DK514388A

Description

DK 159803 BDK 159803 B

Den foreliggende opfindelse angår et møbel, fx et bord eller en stol, der har et understøttende stel, en møbeldel, der er forskydeligt forbundet med steldelen ved hjælp af mindst ét par teleskopdele, og højdejusteringsorganer til justering af møbeldelens højde derved, at 5 møbeldelen bevæges i forhold til steldelen, hvilke højdejusterings-organer indbefatter et par langstrakte, kraftoverførende organer, der er fastgjort til den ene af de nævnte dele, og som strækker sig langs hver af teleskopdelene, et par drejelige organer, der drejeligt er monteret på den anden af de nævnte dele, idet de er indbyrdes 10 forbundet ved hjælp af en fælles aksel, der strækker sig på tværs af og mellem teleskopdelene, og som er i kraftoverførende indgreb med hver sit af de kraftoverførende organer, og udløselige låseorganer, der kan bevæges ind i og ud af låseindgreb med et af de drejelige organer og/eller de kraftoverførende organer for henholdsvis at 15 hindre og tillade bevægelse af møbeldelen i forhold til steldelen.The present invention relates to a piece of furniture, for example a table or chair having a supporting frame, a furniture part slidably connected to the frame part by means of at least one pair of telescopic parts, and height adjustment means for adjusting the height of the furniture part thereby moving the furniture part relative to the frame portion, which height adjusting means includes a pair of elongated, power transmitting means attached to one of said parts and extending along each of the telescopic portions, a pair of pivoting means pivotally mounted on the other of said parts, being interconnected by means of a common shaft extending across and between the telescopic portions, which are in force transmitting engagement with each of the power transmitting means, and releasable locking means which can be moved into and out of locking engagement with one of the swivel means and / or the power transmitting means to prevent and permit movement, respectively. ovulation of the furniture part in relation to the frame part.

Når låseorganerne er blevet udløst, kan møbeldelen, der fx kan være en bordplade, et stolesæde eller en hvilken som helst anden højdejusterbar møbeldel, frit bevæges til den ønskede højde. Derefter kan låseorganerne bevæges tilbage i deres låseindgreb, så at møbeldelen 20 fastholdes i den valgte stilling.When the locking means have been released, the furniture part, which may be, for example, a table top, a chair seat or any other height-adjustable furniture part, can be freely moved to the desired height. Thereafter, the locking means can be moved back into their locking engagement so that the furniture part 20 is retained in the selected position.

Et bord af denne type er kendt fra tysk patentskrift nr. 3240659. Når et sådant bord anvendes til at understøtte en last, fx en skrivemaskine eller en computerterminal, kan det være vanskeligt at foretage en høj dejustering, idet man samtidig skal løfte lasten og fx bevæge 25 bordpladen i opadgående retning.A table of this type is known from German patent specification 3240659. When such a table is used to support a load, for example a typewriter or a computer terminal, it can be difficult to make a high dough adjustment, while at the same time lifting the load and e.g. move the table top upwards.

Ved den foreliggende opfindelse er der blevet tilvejebragt et møbel af den indledningsvis nævnte art, der muliggør en særlig simpel høj dej ustering.In the present invention there has been provided a piece of furniture of the kind mentioned above, which enables a particularly simple high dough extraction.

Møblet ifølge opfindelsen er ejendommeligt ved et fjederorgan, der er 30 anbragt omkring og forbundet med den fælles aksel således, at fjederorganet spændes, når møbeldelen forskydes i retning mod steldelen.The furniture according to the invention is characterized by a spring means arranged around and connected to the common shaft such that the spring means is tensioned as the furniture part is displaced in the direction towards the frame part.

Dette betyder, at møbeldelen automatisk vil blive bevæget opefter, når låseorganerne udløses. Når en tung last, som fx en skrivemaskine eller en computerterminal, understøttes af møbeldelen, kan dennes 35 højde således let justeres i opadgående retning ved, at man udløser 2This means that the furniture part will automatically move upwards when the locking means are released. Thus, when a heavy load, such as a typewriter or computer terminal, is supported by the furniture part, its height can be easily adjusted in an upward direction by triggering 2

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låseorganerne og løfter lasten mere eller mindre. På tilsvarende måde kan møbeldelens højde justeres i nedadgående retning derved, at man udløser låseorganerne og fører møbeldelen nedefter under påvirkning af hele lastens vægt eller en del deraf, og man kan om nødvendigt 5 påvirke møbeldelen med et yderligere nedadgående tryk.the locking means and lifting the load more or less. Similarly, the height of the furniture part can be adjusted downwardly by releasing the locking means and moving the furniture part downward under the influence of all or part of the load, and if necessary, the furniture part can be influenced with a further downward pressure.

De kraftoverførende organer og/eller de drejelige organer kan være anbragt uden for teleskopdelene. Ved den foretrukne udførelsesform er de imidlertid anbragt inde i teleskopdelene således, at de er i hovedsagen usynlige. I princippet kan de kraftoverførende organer 10 fastgøres til steldelen, og de drejelige organer kan være drejeligt monteret på møbeldelen. Ved den foretrukne udførelsesform er de kraftoverførende organer imidlertid fastgjort til møbeldelen, medens de drejelige organer er drejeligt lejret på steldelen.The power transmitting means and / or the pivoting means may be located outside the telescopic parts. However, in the preferred embodiment, they are disposed within the telescopic portions such that they are substantially invisible. In principle, the power transmitting means 10 can be attached to the frame part and the rotatable members can be pivotally mounted on the furniture part. However, in the preferred embodiment, the power transmitting means are attached to the furniture part while the pivoting means are pivotally mounted on the frame part.

De kraftoverførende organer kan fx være en ret kædedel, og de dreje-15 lige organer kan være dermed samarbejdende kædehjul. Ved den foretrukne udførelsesform omfatter hvert af de kraftoverførende organer imidlertid en tandstang, medens hvert af de drejelige organer omfatter et med tandstangen indgribende tandhjul.For example, the power transmitting means may be a straight chain member, and the pivotal means may thus be cooperative sprockets. However, in the preferred embodiment, each of the power transmitting means comprises a rack, while each of the pivoting means comprises a gear engaged with the rack.

De udløselige låseorganer kan være af en hvilken som helst type, der 20 selektivt kan bevæges ind i og ud af indgreb med et af de kraftoverførende organer eller et af de drejelige organer. Da låseorganerne kun skal udløses, når møbeldelens højde skal justeres, omfatter låseorganerne imidlertid fortrinsvis en låsedel, der er fjederpåvirket i låsende indgreb med det kraftoverførende organ eller det dreje-25 lige organ, så at der skal overvindes en fjederkraft, for at den bringes ud af indgreb, medens låsedelen føres tilbage til sin låsestilling, når den frigives.The releasable locking means may be of any type selectively movable into and out of engagement with one of the power transmitting means or one of the pivoting means. However, since the locking means are to be released only when the height of the furniture part is to be adjusted, the locking means preferably comprise a locking member which is spring-actuated in locking engagement with the power transmitting means or the pivotal member, so that a spring force must be overcome to release it. of engagement while the locking portion is returned to its locking position when released.

Låsedelen skal være i stand til at blokere drejning af i det mindste det ene af de drejelige organer. Når de drejelige organer er tand-30 hjul, kan låsedelen være en fortandet del, der bevæges ind i og ud af indgreb med tænderne på en af tandstængerne eller et af tandhjulene.The locking member must be capable of blocking rotation of at least one of the swivel members. When the rotatable members are gear wheels, the locking member may be a toothed member which moves in and out of engagement with the teeth of one of the rack or one of the gears.

Et udløserorgan kan være forbundet med låsedelen således, at låse-delen bevæges ud af låsende indgreb mod fjederkraften, når udløseror 3A release member may be connected to the locking member such that the locking member is moved out of locking engagement against the spring force when the release rudder 3

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ganet trykkes ned. Eksempelvis kan udløserorganet være en hængslet vægtstangsarm, der er forbundet med den fjederpåvirkede låsedel.the palate is pressed down. For example, the release member may be a hinged lever arm connected to the spring-actuated locking member.

Opfindelsen vil i det følgende blive nærmere beskrevet under henvisning til tegningen, der i perspektiv viser en udførelsesform for 5 bordet ifølge opfindelsen med flere dele skåret bort.The invention will be described in more detail below with reference to the drawing, which shows in perspective an embodiment of the table according to the invention with several parts cut away.

Det på tegningen viste bord har en understøttende steldel 10 med et par lodret forløbende, hule ydre teleskopdele 11, der er understøttet af foddele 12, som er forsynet med møbelhjul 13. Et par hule, indre teleskopdele 14 strækker sig nedefter fra undersiden af en bordplade 10 15, hvortil de er fastgjort ved hjælp af tværdele 16. En tandstang 17 er fastgjort til indervæggen af hver af de indre teleskopdele, og disse tandstænger 17 er i indgreb med tilsvarende tandhjul 18, der er monteret på en fælles aksel 19 ved dennes modstående ender. Enderne af akselen 19 er drejeligt lejret i de ydre teleskopdele 11 ved hjælp 15 af lejer 20, og akselen 19 strækker sig i i hovedsagen vandret retning og i lodret afstand fra steldelen 10's tværdel 21. En skruefjeder 22 er anbragt omkring akselen 19, og den ene ende 23 af fjederen er fastgjort til akselen 19, medens den anden ende 24 er fastgjort til den tilgrænsende ydre teleskopdel 11. Et beskyttelsesrør 25 20 omslutter akselen 19 og den fjeder, der omgiver akselen.The table shown in the drawing has a supporting frame portion 10 with a pair of vertically extending hollow outer telescopic portions 11 supported by foot portions 12 provided with furniture wheels 13. A pair of hollow inner telescopic portions 14 extend downwardly from the underside of a countertop. 10 15, to which they are secured by means of transverse parts 16. A rack 17 is attached to the inner wall of each of the inner telescopic parts, and these rack 17 are engaged by corresponding sprockets 18 mounted on a common shaft 19 at its opposite ends. The ends of the shaft 19 are pivotally mounted in the outer telescopic portions 11 by means of bearings 20, and the shaft 19 extends in substantially horizontal direction and at a vertical distance from the transverse portion 21 of the frame member 10. A coil spring 22 is disposed about the shaft 19, and one end 23 of the spring is attached to the shaft 19 while the other end 24 is attached to the adjacent outer telescopic portion 11. A protective tube 25 20 encloses the shaft 19 and the spring surrounding the shaft.

En fortandet låsedel 26, der er anbragt på den øverste ende af en stang 27, er i indgreb med tandhjulet 18 i et af de ydre teleskopdele 11. Den fortandede låsedel 26 presses i indgreb med tandhjulet ved hjælp af en skruefjeder 28, der omgiver stangen 27. Et udløserorgan 25 29 er forbundet med den ene af foddelene 12 ved hjælp af et hængsel 30, og den nederste ende af stangen 27 er forbundet med udløserorganet 29 i afstand fra hængslet 30. I de indre teleskopdele 14 er der afgrænset indre aksiale spalter eller udskæringer 31, der optager akselen 19.A toothed locking portion 26 disposed on the upper end of a rod 27 engages the sprocket 18 in one of the outer telescopic portions 11. The toothed locking portion 26 is pressed into engagement with the sprocket by a coil spring 28 surrounding the rod. 27. A release member 25 29 is connected to one of the foot portions 12 by means of a hinge 30, and the lower end of the rod 27 is connected to the release member 29 at a distance from the hinge 30. In the inner telescopic portions 14, internal axial slots are defined. or cutouts 31 accommodating the shaft 19.

30 Når bordpladen 15's højdeniveau skal justeres, trykkes udløserorganet 29 ned, så at låsedelen 26 bevæges ud af indgreb med tandhjulet 18 mod fjederkraften fra fjederen 28. Fjederen 22's fjederkraft vil nu bevæge bordpladen 15 i opadgående retning. Når bordpladen er blevet bevæget opefter til det ønskede højdeniveau eller igen er presset30 When the height level of the countertop 15 is to be adjusted, the trigger 29 is depressed so that the locking portion 26 is moved out of engagement with the pinion 18 against the spring force from the spring 28. The spring force of the spring 22 will now move the countertop 15 in an upward direction. When the worktop has been moved upwards to the desired height level or is pressed again

Claims

Furniture with a supporting frame part (10), a furniture part (15) slidably connected to the frame part by means of at least one pair of telescopic parts (11, 14), and height adjusting means (17, 18, 24) for adjusting the height of the furniture part in that the furniture part is moved in proportion to the frame part, which high deployment means includes a pair of elongated, power transmitting means (17) attached to one of said parts (10, 15) and extending along each of the telescopic portions (11, 14), a pair of pivoting means (18) pivotally mounted on the other of said portions (11), interconnected by a common shaft (19) extending transversely and between the telescopic portions and being in force transmitting engagement with any of the power transmitting means (17), and releasable locking means (26) movable in and out of locking engagement with one of the rotatable means and / or the power transmitting means for h to prevent and allow movement of the furniture part relative to the frame part, respectively, characterized by a spring means (22) arranged around and connected to the common shaft such that the spring means is tensioned as the furniture part (15) is displaced in the direction towards the frame part ( 10). 30

Furniture according to claim 1, characterized in that the power transmitting means (17) and the pivoting means (18) are arranged inside the telescopic parts (11, 14).

Furniture according to claim 1 or 2, characterized in that the power transmitting means (17) are fixed to the furniture part (15), while the pivoting means (18) are rotatably mounted in the frame part (11).

Furniture according to any one of claims 1-3, characterized in that each of the transmitting means comprises a rack (17), while each of the pivoting means comprises a gear (18) which engages the rack. .

4 downwards to the desired lower level against the spring force from the spring 22, the trigger means 29 is released so that the spring 28 can return the locking portion 26 to its locking position, whereby the table top 15 will be locked at the desired level.

Furniture according to any one of claims 1-4, characterized in that the releasable locking means comprise a locking member (26) which is spring-actuated towards locking engagement with one of the power transmitting means (17) or one of the of the swivel members (18).

It will be appreciated that various modifications and modifications may be made to the embodiment shown in the drawings without departing from the scope of the invention. For example, the shaft 19 and the spring 22 may be disposed within the tubular cross member 21 which can replace the tube 25.

10 PATENT REQUIREMENTS

Furniture according to claim 4 or claims 4 and 5, characterized in that the locking part is a toothed part (26) which can be moved in and out of engagement with the teeth of one of the rods or one of the gears (18). .

Furniture according to any one of claims 3-6, characterized by a release member (29) connected to the locking member (26) such that the locking member is moved out of locking engagement in the direction of the spring force when the release member is depressed.

Furniture according to any one of claims 1-7, characterized in that the furniture part comprises a countertop (15), for example to support a typewriter or a computer terminal.