DK155706B

DK155706B - Cabinet with upward opening roll-front

Info

Publication number: DK155706B
Application number: DK227483A
Authority: DK
Inventors: Johann Svoboda
Original assignee: Johann Svoboda
Priority date: 1983-05-20
Filing date: 1983-05-20
Publication date: 1989-05-08
Also published as: DK155706C; DK227483A; DK227483D0

Description

DK 155706 BDK 155706 B

Opfindelsen angår et skab med rullejalousi, hvilket skab er af den i krav l’s indledning angivne art.The invention relates to a cabinet with roller blind, which is of the kind specified in the preamble of claim 1.

Sådanne skabe kendes f.eks. fra AT-PS nr. 208.542 og US-PS 5 nr. 3.532.153.Such cabinets are known e.g. from AT-PS No. 208,542 and U.S. PS 5 No. 3,532,153.

I disse kendte jalousiskabe virker fjedrene, som på den ene side er fastgjort til skabets stel og på den anden side til rullejalousiet, til enhver tid i en og samme retning. Det har nu vist sig, at det med den kendte 10 anordning af fjedre, som i praksis virker som en enkel fjeder, ikke er muligt at opnå en fuldstændig og nøjagtig udligning af rullejalousiets vægt, eftersom det ikke var muligt at opnå en tilstrækkelig tilpasning af fjederorganernes fjederkraft svarende til den vægt 15 henholdsvis det vægtoverhæng, som rullejalousiet udviser i de forskellige åbningsstillinger. Årsagen hertil er, at elasticitetsforløbet eller spændekraften for en fjeder eller andre elastiske organer ikke kan bringes i tilstrækkelig overensstemmelse med behovene for en 20 harmonisk vægtudligning af rullejalousiet.In these known blinds, the springs, which are attached to the cabinet frame on the one hand and on the other to the roller blinds, at all times act in the same direction. It has now been found that with the known arrangement of springs, which in practice acts as a simple spring, it is not possible to obtain a complete and accurate equalization of the roller blind weight, since it was not possible to obtain a sufficient adjustment of the the spring force of the spring means corresponding to the weight 15 and the weight overhang shown by the roller blind in the different opening positions, respectively. The reason for this is that the elasticity or tension of a spring or other elastic means cannot be sufficiently aligned with the need for a harmonious weight equalization of the roller blind.

Det er opfindelsens formål at anvise en sådan forbedring af det kendte jalousiskab, at rullejalousiets vægt udlignes i enhver stilling.It is the object of the invention to provide such an improvement to the prior art shutter that the weight of the roller shutter is offset in any position.

Det angivne formål opnås ved et skab af den indledningsvis 25 angivne art, som ifølge opfindelsen er ejendommeligt ved den i krav l's kendetegnende del angivne indretning.The stated object is achieved by a cabinet of the kind specified in the preamble, which according to the invention is characterized by the device according to the characterizing part of claim 1.

Ved ifølge opfindelsen at anvende fjedre med forskellig fjederadfærd, der kan opnås ved hjælp af forskellige fjedringsegenskaber og/eller forskellig udspænding af de 30 forskellige fjedre, er det muligt at gøre rullejalousiet praktisk taget "vægtløst", således at der ved åbning og lukning kun er friktionskræfterne, der skal overvindes.By using the springs of different spring behavior which can be obtained by different spring characteristics and / or different tension of the 30 different springs, it is possible to render the roller blind practically "weightless" so that when opening and closing only the frictional forces to be overcome.

Som fjedre kan der inden for opfindelsens rammer anvendesAs springs can be used within the scope of the invention

DK 155706BDK 155706B

2 fjedre af gummi, formstof eller metal i form af elastiske snore eller skrue- eller spiralfjedre.2 springs of rubber, plastic or metal in the form of elastic cords or screw or coil springs.

Ved at de fjedre, der påvirker rullejalousiet, virker i 5 indbyrdes modsatte retninger, f.eks. opad og nedad, er det muligt at opfange det lukkede rullejalousis vægt ved hjælp af de nedad virkende fjedre og at opfange det åbne rullejalousis vægt ved hjælp af de opad virkende fjedre.By having the springs affecting the roller blind act in 5 mutually opposite directions, e.g. upwards and downwards, it is possible to capture the weight of the closed roller blind by means of the downwardly acting springs and to capture the weight of the open roller blind by the upwardly acting springs.

Rullejalousiet påvirkes fortrinsvis af mindst to opad 10 virkende og to nedad virkende fjedre. Også i dette tilfælde er det muligt at anvende fjedre med forskellige fjedringsegenskaber og/eller forskellige spændinger, som altid virker i den samme retning. Således kan der f.eks. anvendes to opad og to nedad virkende fjedre, idet i hvert 15 af disse fjederpar er den ene blødere og den anden hårdere.The roller blind is preferably affected by at least two upwardly acting and two downwardly acting springs. Also in this case it is possible to use springs with different spring characteristics and / or different voltages, which always operate in the same direction. Thus, e.g. two upward and two downwardly acting springs are used, with each of these 15 pairs being one softer and the other harder.

Den i krav 2 angivne udførelsesform medfører den fordel, at de fjedre, som ikke behøves til vægtudligningen, er fuldstændigt afspændt og derfor ikke udøver nogen kraft på 20 rullej alousiet.The embodiment of claim 2 has the advantage that the springs which are not needed for the weight equalization are completely relaxed and therefore do not exert any force on the 20 roller bearing alloy.

Ved den i krav 4 angivne udførelsesform er det muligt at sørge for, at den pågældende fjeder først spændes efter forskydning af rullejalousiet gennem en vis vejlængde, hvad der på fordelagtig måde kan udnyttes til vægtudlig-25 ningen. Praktiske videreudviklinger af denne udførelsesform er angivet i krav 5 og 6.In the embodiment of claim 4, it is possible to ensure that the spring in question is first tensioned after displacement of the roller blind through a certain path length, which can advantageously be utilized for the weight equalization. Practical developments of this embodiment are set forth in claims 5 and 6.

For dels at gøre det muligt at indbygge lange fjedre, dels at give disse forskellige fjedringsegenskaber i forskellige retninger, kan indretningen af skabet ifølge opfindel-30 sen være som angivet i krav 7.In order to make it possible to incorporate long springs and to give these different spring properties in different directions, the arrangement of the cabinet according to the invention may be as claimed in claim 7.

Ved den i krav 8 angivne udførelsesform opnås en ensartet belastning af rullejalousiet og dermed en mindre risiko for, at dette kommer i klemme i skabets føringer.In the embodiment according to claim 8, a uniform load on the roller blind is obtained and thus a lesser risk of this being trapped in the cabinet guides.

DK 155706BDK 155706B

33

Opfindelsen skal i det følgende forklares nærmere under henvisning til tegningen, hvor fig. 1-10 skematisk viser et rullejalousiskab, set bagfra 5 henholdsvis fra siden med rullejalousiet i forskellige stillinger.The invention will now be explained in more detail with reference to the drawing, in which 1-10 schematically shows a roller blind cabinet, viewed from behind 5 respectively from the side with the roller blind in different positions.

Rullejalousiet 1 er ført i ikke viste noter i skabets sidegavle 2 og kan fra den i fig. 1 og 2 viste lukkede stilling gradvis forskydes til den i fig. 9 og 10 viste, 10 fuldstændigt åbne stilling. Herunder skydes rullejalousiet hen til området foran bagvæggen 3, nemlig ned i et optagelsesrum 4, der er tilvejebragt på dette sted.The roller blind 1 is guided in notes not shown in the side panels 2 of the cabinet and can be seen from the one shown in FIG. 1 and 2 are gradually shifted to the position shown in FIG. 9 and 10, 10 fully open position. Below this, the roller blind is moved to the area in front of the rear wall 3, namely into a recording space 4 provided at this location.

Til udligning af rullejalousiets vægt er der tilvejebragt et antal fjedre, som dels er fastgjort til den ende 5 på 15 rullejalousiet 1, som i lukkestillingen (fig. 1 og 2) befinder sig øverst, dvs. i nærheden af bagvæggen 3, dels er fastgjort til selve skabet, i det viste udførelseseksempel til sidegavlene 2.To offset the weight of the roller blind, a plurality of springs are provided which are partly secured to the end 5 of the roller blind 1 which is in the closing position (Figures 1 and 2) at the top, ie. adjacent the rear wall 3, partly attached to the cabinet itself, in the illustrated embodiment to the side panels 2.

I det viste udførelseseksempel virker fjedrene 6 og 7 20 opad, og fjedrene 8 og 9 nedad. Det vil kunne ses, at i den lukkede stilling af rullejalousiet 1 (fig. 1 og 2) udnyttes udelukkende fjedrene 8 og 9 til vægtudligning.In the illustrated embodiment, springs 6 and 7 act upwardly and springs 8 and 9 face down. It can be seen that in the closed position of the roller blind 1 (Figures 1 and 2), only the springs 8 and 9 are used for weight equalization.

Til dette formål er fjedrene 8 og 9 udspændt mellem fastgørelsespunkterne 10 og 11 i skabet og fastgørelsespunk-25 terne 12 og 13 på rullejalousiet 1. I den lukkede stilling af rulle jalousiet 1 er fjedrene 6 og 7, der er fastgjort til fastgørelsespunkterne 12 og 13 og fastgørelsespunkterne 14 og 15, ikke spændt og hænger, som vist i fig. 1, løst ned. Dersom rullejalousiet 1 nu åbnes, opvejer 30 fjedrene 8 og 9 rulle jalousiets vægt, som aftager ved fremadskridende åbning, idet vægten af rullejalousiet 1 aftager, fordi en voksende del af jalousiet hænger ned i optagelsesrummet 4 ved bagvæggen, og den del af rullejalousiet 1, der befinder sig ved skabets forside.For this purpose, the springs 8 and 9 are clamped between the fastening points 10 and 11 of the cabinet and the fastening points 12 and 13 of the roller blind 1. In the closed position of the roller blind 1, the springs 6 and 7, which are fixed to the fastening points 12 and 13 and the attachment points 14 and 15, not clamped and hung, as shown in FIG. 1, loosened down. If the roller blind 1 is now opened, the springs 8 and 9 outweigh the weight of the roller blind, which decreases with forward opening, the weight of the roller blind 1 decreasing, because a growing part of the roller blind hangs in the recording space 4 at the rear wall, and that part of the roller blind 1. that is at the front of the closet.

DK 155706BDK 155706B

4 bliver kortere. Gennem den kvart-åbne stilling, der er vist i fig. 3 og 4, opnås til sidst den i fig. 5 og 6 viste stilling, hvori rullejalousiet 1 er halvt åbent, og 5 de dele af rullej alousiet 1, der befinder sig ved skabets forside og ved bagvæggen 3, er lige lange. Det vil kunne ses, at i dette tilfælde er de to fjederpar 6,7 henholdsvis 8,9 spændt i samme grad, således at de resulterende fjederkræfter er lig med nul.4 will be shorter. Through the quarter-open position shown in FIG. 3 and 4, the embodiment of FIG. 5 and 6, wherein the roller blind 1 is half open and 5 the portions of the roller blind 1 located at the front of the cabinet and at the rear wall 3 are of equal length. It can be seen that in this case, the two spring pairs are 6.7 and 8.9, respectively, tensioned to the same degree, so that the resulting spring forces are equal to zero.

10 Ved yderligere fremadskridende åbning af rullejalousiet 1 spændes fjedrene 6 og 7 yderligere, og som følge af deres opadrettede virkning kompenserer de vægten af rullejalousiet 1, hvorimod fjedrene 8 og 9 nu er afspændt.10 By further advancing the opening of the roller blind 1, the springs 6 and 7 are further tightened and, due to their upward action, they compensate the weight of the roller blind 1, whereas the springs 8 and 9 are now relaxed.

Ifølge en ikke vist udførelsesform er det muligt at 15 udforme fjedrene 6 og 7 henholdsvis 8 og 9 forskelligt. Således kan f.eks. fjederen 6 udvise en anden elasticitet eller andre fjederegenskaber end fjederen 7. Imidlertid kan også f.eks. fjedrene 8 og 9 være indbyrdes ens og adskille sig fra fjedrene 6 og 7, hvad deres fjederegen-20 skaber angår.According to an embodiment not shown, it is possible to design the springs 6 and 7 respectively 8 and 9 differently. Thus, e.g. the spring 6 exhibits a different elasticity or other spring properties than the spring 7. However, e.g. the springs 8 and 9 are mutually similar and different from the springs 6 and 7 as far as their spring properties are concerned.

Endvidere er det inden for opfindelsens rammer muligt at gøre fjedrenes fastgørelsespunkter 10,11 og/eller 14,15 i skabet begrænset forskydelige. Denne forskydelighed, som i reglen vil være en lodret sådan, kan opnås ved, at fast-25 gørelsespunkterne er optaget i styreskinner, hvori der er anbragt anslag eller stop til begrænsning af fastgørelsespunkternes forskydelighed. Dersom anslagene eller stoppene gøres bevægelige, er det tillige muligt at indstille fastgørelsespunkternes bevægelsesspillerum inden for de 30 ønskede grænser. En anden mulighed for opnåelse af bevægelige fastgørelsespunkter er at anbringe dem på de frie ender af frem- og tilbagesvingelige vægtstænger. Dersom der er tilvejebragt bevægelige fastgørelsespunkter, er det ikke nødvendigt, at samtlige fjedre har bevægelige 35 fastgørelsespunkter, idet det også er muligt at lade kunFurthermore, within the scope of the invention, it is possible to make the springs attachment points 10,11 and / or 14,15 in the cabinet limited slidable. This displacement, which will generally be a vertical one, can be achieved by the attachment points being accommodated in guide rails in which stops or stops are arranged to limit the displacement of the attachment points. If the stops or stops are made movable, it is also possible to set the motion clearance of the fastening points within the desired limits. Another possibility of obtaining movable attachment points is to place them on the free ends of reciprocating lever bars. If movable attachment points are provided, it is not necessary for all springs to have movable attachment points, as it is also possible to allow only

DK 155706BDK 155706B

5 en enkelt eller nogle fjedre have bevægelige fastgørelsespunkter .5 a single or some springs have movable attachment points.

Claims

1. Cabinet with roller blind (1) that can be opened upwards and springs (6,7,8,9), which are partly attached to the cabinet frame, 5 partly to the roller blind (1), characterized in that the roller blind ( 1) is fixed at least two springs (6,7,8,9) in opposite directions with different spring characteristics and / or different tension, the device being such that when the roller blind (1) 10 is in an intermediate position (Figs. 3-8) between the fully open (Figs. 9 and 10) and fully closed (Figs. 1 and 2) position, the force of at least one spring, preferably two springs (6 and 7), acts upwards, and the force from at least one additional spring, preferably two springs (8 and 9), downwards.

Cabinet according to claim 1, characterized in that in the fully open or fully closed position of the roller blind, at least one of the springs (6.7 and 8.9) is tensioned and at least one of the springs (8.9 and 6.7, respectively). ) relaxed (Figures 1 and 9).

Cabinet according to Claim 1 or 2, characterized in that, with half open roller blind (1), the sum of the spring forces is equal to zero (Fig. 5).

Cabinet according to one or more of claims 1-3, characterized in that at least one of the fastening points (10,11, 25 14,15) for the springs (6,7,8,9) in the cabinet is displaceable to a limited extent.

Cabinet according to claim 4, characterized in that at least one of the fastening points (10, 11, 14, 15) in the cabinet (2) is slidably mounted in guide rails, which optionally comprises adjustable stop for limiting the point or point of movement of the attachment point (s) DK 155706B

Cabinet according to claim 4, characterized in that at least one of the attachment points is arranged on the free end of a weight rod which can swing back and forth through a predetermined angular range.

Cabinet according to one or more of claims 1-6, characterized in that at least one of the springs (6,7,8,9) between its attachment points (10,11,14,15) in the cabinet and on the roller blind (1) is passed through a carton or the like 10 attached to the cupboard.

Cabinet according to one or more of claims 1-7, characterized in that the fastening points (12, 13) of the springs (12, 13) on the roller blind (1) are arranged outside the center thereof, preferably in one half of the the roller blind (1), 15 which is opposite the attachment point (10, 11, 14, 15) of the spring (6, 8, 8, 15) in the cabinet (1).