DK175829B1

DK175829B1 - Furniture plate and method of manufacture thereof

Info

Publication number: DK175829B1
Application number: DK199701350A
Authority: DK
Inventors: Jesper Madvig Joergensen
Original assignee: Jesper Madvig Joergensen
Priority date: 1997-11-25
Filing date: 1997-11-25
Publication date: 2005-03-14
Also published as: DE69823542D1; DE69823542T2; ATE265165T1; AU1433799A; EP1033926A1; EP1033926B1; WO1999029210A1

Abstract

A method serving for manufacturing a core stock (1) which, along an edge area (2), is provided with a cavetto list (3; 4) shaped on the inside with a longitudinal cavetto surface (5). Free starting lists (19; 20) having a rectangular profile enclosing the future cavetto surface (5) are used in this method. The starting lists (19; 20) are fixed in the edge area (2) of the core stock (1) whereupon the cavetto surface (5) is uncovered by successively removing material from the starting list (19; 20). By means of the method, core stocks (1) can quickly and easily be manufactured that have cavetto lists (3; 4) with cavetto surfaces (5) which pass into the top side (7) of the core stock (1) completely evenly and smoothly at the same time as the cavetto surfaces (5) in a corner pass into each other along a surface of double curvature.

Description

i DK 175829 B1in DK 175829 B1

Opfindelsen angår en fremgangsmåde til at fremstille en møbelplade, såsom en bordplade, som langs et kantområde er forsynet med mindst én hulkehlliste, der på indersiden er , i udformet med en langsgående hulkehlflade.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method of making a furniture plate, such as a countertop, which is provided along at one edge region with at least one hollow shelf, which is on the inside, formed with a longitudinal hollow surface.

55

Hulkehllister anvendes til at danne én i designmæssig henseende tiltalende overgang mellem eksempelvis en bordplade på et køkkenbord og de tilstødende vægge. Samtidig tjener hulkehllisterne et hygiejnisk formål, idet de bygger bro over 10 de skarpe, indadvendende hjørner mellem bordpladens overside og væggen, således at -overgangen undgår at blive samlingssted for snavs og urenheder og let lader sig rengøre.Hole moldings are used to form a design-friendly transition between, for example, a countertop on a kitchen table and the adjoining walls. At the same time, the hulk moldings serve a hygienic purpose, bridging the sharp, inward-facing corners between the top of the countertop and the wall, so that the transition avoids becoming a gathering place for dirt and impurities and is easily cleaned.

Konventionelt fremstilles en sådan bordplade på den måde, at 15 hulkehlen på forhånd udformes på løse lister, der dernæst som færdige hulkehllister fastgøres manuelt langs kantområdet. Det er imidlertid overordentligt vanskeligt og tidsrøvende at få sådanne lister til at passe godt nok til bordpladen, og det færdige resultat er i de fleste tilfælde ikke ! 20 tilfredsstilende.Conventionally, such a countertop is manufactured in such a way that the 15 hollow holes are formed in advance on loose moldings, which are then manually finished as finished hollow molds along the edge area. However, it is extremely difficult and time-consuming to make such moldings fit well enough to the table top, and in most cases the finished result is not! 20 satisfactory.

Ved overgangen kan en liste således nogle steder rage lidt op i over bordpladen og andre steder ligge lidt under. Derved opstår der ujævnheder i form af eksempelvis smalle spalter, 25 der virker som lommer for snavs og urenheder, og som nærmest er umulige at rengøre. Ujævnhederne skæmmer desuden et ellers smukt design.Thus, at the transition a list may in some places protrude slightly above the countertop and in some places may be slightly below. This results in unevenness in the form of, for example, narrow gaps, 25 which act as pockets for dirt and impurities, and which are virtually impossible to clean. The irregularities also spoil an otherwise beautiful design.

Ved den konventionelle -fremgangsmåde skæres hulkehllister i 3 0 gering ved et hjørne og samles med en skarp overgang, der medfører, at hjørnet kommer til at lide af samme hygiejniske og synsmæssige mangler som nævnt ovenfor.In the conventional method, hollow shelves are cut into a corner at a corner and assembled with a sharp transition, causing the corner to suffer from the same hygienic and visual deficiencies as mentioned above.

Fra US 5,452,666 kendes en bordplade med et bagstykke, der 35 tjener til at afskærme væggen, som bordpladen støder op til.US 5,452,666 discloses a countertop with a backing which serves to shield the wall adjacent to the countertop.

Dette bagstykke er udformet med en integreret hulkehl, der har DK 175829 B1 2 et langsgående federparti til at nedsænkes i ét i bordpladen udformet notparti. Da not og feder ikke nøjagtigt passer sammen, er det med denne konstruktion vanskeligt at opnå en tætsluttende og fuldstændig glat overgang mellem hulkehl og 5 bordplade.This rear piece is designed with an integrated hollow shell, which has a longitudinal spring portion for a 175529 B1 2 to be submerged into one groove portion formed in the table top. Since the groove and the feather do not exactly fit together, with this construction it is difficult to achieve a tight and completely smooth transition between hollow and 5 table top.

Formålet med opfindelsen er at anvise en fremgangsmåde af den indledningsvis nævnte art, hvormed der hurtigt og nemt kan fremstilles en møbelplade med hulkehllister, hvis 10 hulkehlflader har en jævnere og glattere overgang til møbelpladens overside end hidtil kendt og i et hjørne går over i hinanden langs en dobbeltkrum flade.The object of the invention is to provide a method of the kind mentioned in the introduction, by means of which a furniture plate with hollow shelves can be manufactured quickly and easily, whose 10 hollow shell surfaces have a smoother and smoother transition to the top of the furniture plate than previously known and in a corner go along with each other. a double curved surface.

Det nye og særegne ifølge opfindelsen, hvorved dette opnås, 15 består i, at der på kantområdet fastgøres mindst én udgangsliste, som helt eller delvist omslutter én i listen iboende hulkehlflade, og at hulkehllisten frilægges ved eksempelvis med en fræser successivt at fjerne materiale fra den mindst ene udgangsliste. Derved falder den konventionelle 20 fremgangsmådes møjsommelige og kostbare tilpasningsarbejde væk, og der opnås samtidig en fuldstændig jævn og glat overgang mellem hulkehlfladerne og møbelpladens overside og dobbeltkrumme hulkehlflader i hjørnerne. Derved sættes møbelpladen i stand til at leve op til den krævede hygiejniske 25 standard, og den lader sig hurtigt og nemt rengøre. Designet ødelægges desuden heller ikke længere af skæmmende ujævnheder mellem hulkehllisterne og møbelpladens overside.The new and peculiar according to the invention, whereby this is achieved, consists in attaching at least one starting strip to the edge area which completely or partially encloses one hollow shell surface inherent in the list, and that the hulk hollow strip is exposed by, for example, removing a material from the cutter successively. at least one exit list. This eliminates the painstaking and costly adaptation work of the conventional process, while at the same time providing a completely smooth and smooth transition between the cavity surfaces and the top of the furniture plate and double curved cavity surfaces in the corners. This enables the furniture plate to live up to the required hygienic standard and it can be cleaned quickly and easily. In addition, the design is no longer destroyed by shady bumps between the hollow moldings and the top of the furniture plate.

Når hulkehllisten dannes ved fræsning, kan der anvendes en 30 computerstyret fræsemaskine, f.eks. en NC maskine, som er programmeret til styring af fræseren langs rummets tre akser x, y, z, hvor z-aksen står vinkelret på møbelpladen.When the hollow hole mold is formed by milling, a computer controlled milling machine, e.g. an NC machine which is programmed to control the cutter along the three axes x, y, z, where the z axis is perpendicular to the furniture plate.

Styringen langs z-aksen kan fordelagtigt finde sted ved hjælp 35 af en detektor, som løbende registrerer fræserens z-akse position og afgiver signaler, der repræsenterer den målte 3 DK 175829 B1 værdi, til computeren. Detektoren kan eksempelvis fungere ved hjælp af en laserstråle, ultralyd eller lignede middel til at sikre et nøjagtigt måleresultat og deraf følgende præcist fræsearbejde.The control along the z-axis can advantageously take place by means of a detector which continuously records the z-axis position of the cutter and transmits signals representing the measured value to the computer. The detector can, for example, operate by means of a laser beam, ultrasound or similar means to ensure an accurate measurement result and consequently precise milling.

55

Fræseren kan også positioneres langs z-aksen ved hjælp af et afstandsstykke, som har en glidefod og er anbragt på fræserens fræsehoved. Af standsstykket sørger automatisk for, at fræserens nederste område nøje kommer til at følge 10 møbelpladens overside. Denne metode er enkel og samtidig meget sikker, da foden under passagen af bordpladens overside selv skubber spåner, som ville kunne være årsag til fejlregistrering af afstanden til møbelpladen, til side.The cutter can also be positioned along the z-axis by means of a spacer having a sliding foot and mounted on the cutter head of the cutter. The stand piece automatically ensures that the bottom area of the cutter closely follows the top of the 10 piece of furniture. This method is simple and at the same time very safe, as the foot during the passage of the top of the countertop even pushes shavings that could cause the distance of the furniture plate to be incorrectly recorded.

15 For at undgå hæmmende friktion mellem møbelpladen og afstandsstykket, kan dettes fod med fordel være indrettet til at glide på en luftpude, der samtidig tjener til at blæse spåner væk fra foden.15 In order to avoid inhibitory friction between the furniture plate and the spacer, its foot may advantageously be arranged to slide on an air cushion which simultaneously serves to blow shavings away from the foot.

20 Opfindelsen angår også en møbelplade, såsom en bordplade med et kantområde, der er forsynet med en hulkehlliste, som har en hulkehlf lade, der i tværsnit har form af en bue, medens bordpladens overside i tværsnit har form af en linie, der ved kantområdet tangerer nævnte bue. Samtidig kan hulkehlfladerne 25 på to lister, der mødes i et hjørne, gå jævnt og glat over i hinanden via en dobbeltkrum flade. Derved bliver møbelpladen hygiejnisk at anvende og rengøre, og den opnår et smukt design.The invention also relates to a furniture plate, such as a countertop with an edge area provided with a hollow shelf having a hollow shell having a cross-sectional shape, while the upper side of the tabletop in cross-section takes the form of a line which at the edge area tangles said arc. At the same time, on two strips meeting in one corner, the hulkehl surfaces 25 can smoothly and smoothly over one another via a double curved surface. This makes the furniture plate hygienic to use and clean, and it achieves a beautiful design.

30 Ved en særlig hensigtsmæssig udførelsesform kan den dobbeltkrumme hulkehlflade i et hjørne, hvor to lister mødes, ligge i en omdrejningsflade, hvorved skæringskurven mellem denne dobbeltkrumme hulkehlflade og et plan, der indeholder omdrejningsfladens akse, kan være kongruent med skæringskurven 35 mellem den langsgående hulkehlflade og et plan, som står vinkelret på denne flade.In a particularly convenient embodiment, the double curved hollow surface in a corner where two moldings meet may lie in a rotating surface, whereby the intersection curve of this double curved hollow surface and a plane containing the axis of the rotating surface may be congruent with the intersection curve 35 between the longitudinal hollow surface a plane perpendicular to this plane.

DK 175829 B1 4DK 175829 B1 4

Opfindelsen forklares nærmere nedenfor, idet der beskrives alene eksempelvise udførelsesformer og angives yderligere fordelagtige egenskaber og virkninger under henvisning til tegningen, hvor 5The invention is explained in more detail below, describing only exemplary embodiments and further advantageous properties and effects with reference to the drawings, in which:

Fig. 1 viser, set i perspektiv skråt oppefra, et brudstykke af en møbelplade ifølge opfindelsen,FIG. 1 is a perspective elevational view of a fragment of a piece of furniture according to the invention,

Fig. 2 viser, set fra siden, delvis i snit, et første 10 procestrin ved fremstilling af den i fig. 1 viste møbelplade,FIG. 2 is a side view, partly in section, of a first 10 process steps of preparing the one shown in FIG. 1,

Fig. 3 viser, set fra siden, delvis i snit, et andet procestrin ved fremstilling af den i fig. 1 viste møbelplade, 15 Fig. 4 viser, set fra siden, delvis i snit, et tredie procestrin ved fremstilling af den i fig. 1 viste møbelplade, hvor en hulkehlliste fræses ved hjælp af en fræser,FIG. 3 is a side elevational view, partly in section, of another process step in preparing the embodiment of FIG. 1, FIG. 4 is a side view, partly in section, of a third process step in preparing the embodiment of FIG. 1, where a hollow shelf mold is milled by means of a cutter,

Fig. 5 viser i mindre målestok et blokdiagram, der skematisk 20 illustrerer en elektronisk styring af fræserens z-akse position,FIG. Fig. 5 shows on a smaller scale a block diagram schematically illustrating an electronic control of the z-axis position of the cutter;

Fig. 6 viser i større målestok en mekanisk styring af fræserens z-akse position, 25FIG. 6 shows on a larger scale a mechanical control of the cutter's z-axis position, 25

Fig. 7 viser, set oppefra, fræseren under fræsning af en første hulkehlliste,FIG. 7 is a plan view of the cutter while milling a first hollow shelf,

Fig. 8 viser, set oppefra, fræseren under fræsning af en 30 dobbeltkrum hulkehlflade i et hjørne, hvor den første hulkehlliste støder sammen med en anden,FIG. 8 is a plan view of the cutter while milling a double-curved cavity surface in a corner where the first cavity molding abuts with another,

Fig. 9 viser, set oppefra, fræseren under fræsning af den anden hulkehlliste.FIG. 9 is a plan view of the cutter while milling the second hollow shelf.

35 I fig. 1 er møbelpladen ifølge opfindelsen i sin helhed 5 DK 175829 B1 angivet med henvisningstallet 1. En bordplade 8 er langs et kantområde 2 forsynet med en første og anden hulkehlliste 3, 4 som hver har en langsgående hulkehlflade 5, der går jævnt og glat over i bordpladens overside 7. Hvor de to lister 3, 4 5 mødes i det viste hjørne, går de jævnt og glat over i hinanden via en dobbeltkrum hulkehlflade 6. I det viste tilfælde er bordpladen beklædt med et laminat 22 på begge sider.35 In FIG. 1, the furniture plate according to the invention as a whole is denoted by reference numeral 1. A countertop 8 is provided along an edge area 2 with a first and second hollow shelves 3, 4, each having a longitudinal hollow surface 5 which runs smoothly and smoothly. The top of the worktop 7. Where the two strips 3, 4 5 meet in the corner shown, they smoothly and smoothly over each other via a double curved hollow surface 6. In the case shown, the worktop is covered with a laminate 22 on both sides.

Fig. 2 illustrerer et første procestrin ved fremstilling af 10 den i fig. 1 viste møbelplade. En udgangsliste 9 omslutter med et rektangulært profil den kommende hulkehlflade 5, som er antydet med punkteret streg. I figuren føres den frie udgangsliste i pilens retning hen mod bordpladen 8's kantområde 2.FIG. 2 illustrates a first process step of preparing the embodiment of FIG. 1. An exit list 9 encloses, with a rectangular profile, the incoming hollow surface 5, which is indicated by a dashed line. In the figure, the free exit strip is moved in the direction of the arrow towards the edge area 2 of the countertop 8.

15 I fig. 3 er listen 9 bragt til anlæg mod bordpladen 8, og i fig. 4 med et eventuelt mellemliggende limlag (ikke vist) sømmet fast på bordpladen med søm 18. En fræser 10 har dernæst fræset så meget af udgangslisten 9, at hulkehlfladen 5 er 20 blevet frilagt.In FIG. 3, the frame 9 is brought against the countertop 8, and in FIG. 4 with any intermediate adhesive layer (not shown) seamed to the countertop with nail 18. A cutter 10 has then milled so much of the starting strip 9 that the hollow shell surface 20 has been exposed.

Det bemærkes, at listen kan være fastgjort på bordpladen på en hvilken som helst anden egnet måde, f.eks. med skruer eller alene ved hjælp af limning.It should be noted that the list may be attached to the countertop in any other suitable manner, e.g. with screws or by gluing alone.

2525

Det i fig. 4 viste procestrin er nærmere illustreret i fig. 5, hvor fræseren 10 er monteret i et fræsehoved 23 i en fræsemaskine (ikke vist), som er udstyret med en computer 15. Fræserens styring langs z-aksen finder sted ved hjælp af en 30 detektor 17, som følger med fræseren 10's fræsehoved 23 og herunder løbende registrerer dettes øjeblikkelige afstand fra bordpladens overside. Herunder afgiver detektoren et signal, som repræsenterer den registrerede afstand, til computeren 15, som dernæst sammenligner værdien med en referenceværdi fra en 35 referenceenhed 16. Ved afvigelser sender computeren via en forstærker 24 signal til et manøvreorgan 25 om at regulere 6 DK 175829 B1 fræserens z-akse position således, at værdien af fræserens afstand fra bordpladens overside bliver lig med referenceværdien. Da fræserens nederste område derved tvinges til nøje at fdige bordpladens overside, dannes mellem denne og 5 hulkehlfladen 5 den ønskede fuldstændige jævne og glatte overgang.The FIG. 4 is further illustrated in FIG. 5, wherein the cutter 10 is mounted in a milling head 23 in a milling machine (not shown) equipped with a computer 15. The cutter control along the z axis takes place by means of a detector 17, which follows the cutter head 23 of the cutter 10 including continuously recording its immediate distance from the top of the countertop. Below, the detector outputs a signal representing the recorded distance to the computer 15, which then compares the value to a reference value from a reference unit 16. In deviations, the computer sends a signal to an actuator 25 to control the cutter via a amplifier 24. z axis position such that the value of the cutter's distance from the top of the worktop becomes equal to the reference value. As the lower area of the cutter is thereby forced to carefully complete the top of the worktop, between this and the 5 hollow surface 5 the desired complete smooth and smooth transition is formed.

Fig. 6 viser en anden mulighed for justering af fræseren 10's z-akse position. I dette tilfælde anvendes der et 10 afstandsstykke 11, som er monteret på manøvreorganet 25, og som har en fod 12 til glidende at støtte mod bordpladen 8's overside 7. Glidefoden 12' s underside ligger i samme niveau som fræseren 10's underside, og fræsehovedet 23 er anbragt frit forskydelig i aksial retning på fræseren 10. Under 15 fræsningen holder afstandsstykket 11 derved stedse fræserens underside i samme niveau som bordpladens overside, således at der også i dette tilfælde opnås en fuldstændig jævn og glat overgang mellem hulkehlfladen 5 og bordpladens overside 7.FIG. 6 shows another possibility of adjusting the z axis position of the cutter 10. In this case, a spacer 11 is used which is mounted on the actuator 25 and which has a foot 12 for slidingly against the top surface of the countertop 8. The bottom of the slide 12 is at the same level as the underside of the cutter 10 and the milling head 23 is positioned freely displaceable in axial direction on the cutter 10. During the milling, the spacer 11 thereby keeps the underside of the cutter at the same level as the top of the worktop, so that in this case also a completely smooth and smooth transition between the hollow surface 5 and the top surface of the worktop 7 is obtained.

Denne metode er enkel og desuden meget sikker, fordi foden 12 20 selv skubber generende spåner til side.This method is simple and also very safe, because the foot 12 20 itself pushes annoying shavings aside.

I fig. 7, 8 og 9 illustreres den successive fræsning af hulkehlfladerne i en første og anden udgangsliste 19; 20, som er fastgjort langs et kantområde 2 på en bordplade 8. Som vist 25 overlapper listerne hinanden i hjørnet 21.In FIG. 7, 8 and 9 illustrate the successive milling of the cavity surfaces in a first and second output list 19; 20, which is secured along an edge area 2 on a table top 8. As shown 25, the moldings overlap in the corner 21.

I fig. 7 føres fræseren under fræsning af en hulkehlflade 5 i den første udgangsliste 19 i pilens retning hen mod hjørnet 21.In FIG. 7, the cutter is routed while milling a hollow surface 5 of the first output 19 in the direction of the arrow towards the corner 21.

30 I fig. 8 er fræseren nået hen til hjørnet 21, hvor den fræser en dobbeltkrum overflade med én til fræserens yderside svarende komplementær form, som nærmere er defineret ved, at skæringskurven mellem den dobbeltkrumme overflade og et plan, 35 som indeholder omdrejningsfladens akse, er kongruent med skæringskurven mellem den langsgående hulkehlflade og et plan, 7 DK 175829 B1 som står vinkelret på denne.In FIG. 8, the cutter has reached corner 21 where it is milling a double curved surface with a complementary shape corresponding to the outside of the cutter, which is further defined by the intersection curve between the double curved surface and a plane containing the axis of the rotating surface being congruent with the cutting curve between the longitudinal hollow surface and a plane 7 perpendicular to it.

I fig. 9 føres fræseren under fræsning af en hulkehlflade 5 i den anden udgangsliste 20 i pilens retning bort fra hjørnet ! 5 21.In FIG. 9, the cutter is routed while milling a hollow surface 5 in the second output 20 in the direction of the arrow away from the corner! 5 21.

iin

Claims

A method of making a furniture plate (1), such as a countertop (8), which is provided along an edge area (2) with at least one hollow shelf (3; 4) formed on the inside with a longitudinal hollow surface (5). ), characterized in that at least one output strip (9, -19, -20) is enclosed in the edge region (2), which encloses, in whole or in part, one cavity surface (5) inherent in the list (9, -19, -20), and the cavity surface (5) is exposed by successively removing material from the starting strip (9).

Process according to claim 1, characterized in that the material is removed by means of a cutter (10). 15

A method according to claim 1 or 2, wherein the edge region (2) comprises a corner (21) where two edges meet, characterized in that an output strip (19, -20) is provided on each of the two edges. in the corner (21) 20, one of the double-curved cavity surfaces (5) inherent in the moldings (19; 20) encloses and that this cavity surface (5) is exposed by successively removing material from the starting strips (19, -20).

Method according to claim 1, 2 or 3, characterized in that the material is removed with a cutter (10) in a milling machine with a computer (15) programmed to control the cutter (10) along the three axes x, y , z, where the z-axis is substantially perpendicular to the furniture plate (8). 30

Method according to claim 4, characterized in that the control of the cutter (10) along the z axis takes place by continuously detecting its instantaneous distance from the top side of the table top (8) with a detector (17) which accompanies the cutter (10). 35 (7) and output a signal representing this distance to the computer (15), which then compares the value to a reference value and sends a signal to one of the milling machine (25) associated with the milling machine to control the cutter (10) z -axis position such that the value of the distance of the cutter {10) from the top (7) 5 of the worktop (8) becomes equal to the reference value.

Method according to claim 4 or 5, characterized in that the z-axis position of the cutter (10) is determined by a spacer (11) provided with the cutter (10) and has 10 a foot (12) for supporting against the furniture plate ( 8) top side (7).

Method according to claim 6, characterized in that the foot (12) of the spacer (11) supports against the upper side (7) of the furniture plate 15 (8) via an air cushion.

Furniture plate (1), such as a countertop (8) provided along at one edge region with at least one molding having a longitudinal hollow surface having a cross-sectional shape of an arc and having the upper side (7) of the countertop (8) the shape of a line tangent to said arc at the edge region, characterized in that the longitudinal hollow shell surfaces (5) of each of two strips (19; 20) meeting in a corner (21) are smoothly and smoothly interconnected via a double-curved 25 hollow surface (6).

Furniture plate (1) according to claim 8, characterized in that the double curved hollow surface (6) lies in a rotating surface and that the intersection curve between this double curved hollow surface (6) and a plane containing the axis of the rotating surface is congruent with the intersection curve between the longitudinal hollow surface (5) and a plane perpendicular to that surface (5). 35