EP0062013A1 - Verbindungsstreifen und daraus hergestelltes, mit abgerundeten Ecken versehenes Gehäuse - Google Patents

Verbindungsstreifen und daraus hergestelltes, mit abgerundeten Ecken versehenes Gehäuse Download PDF

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Publication number
EP0062013A1
EP0062013A1 EP82830076A EP82830076A EP0062013A1 EP 0062013 A1 EP0062013 A1 EP 0062013A1 EP 82830076 A EP82830076 A EP 82830076A EP 82830076 A EP82830076 A EP 82830076A EP 0062013 A1 EP0062013 A1 EP 0062013A1
Authority
EP
European Patent Office
Prior art keywords
panels
case
plastic
panel
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82830076A
Other languages
English (en)
French (fr)
Other versions
EP0062013B1 (de
Inventor
Carlo Corna
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0062013A1 publication Critical patent/EP0062013A1/de
Application granted granted Critical
Publication of EP0062013B1 publication Critical patent/EP0062013B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/20—Furniture panels or like furniture elements
    • A47B96/202—Furniture panels or like furniture elements with a continuous layer allowing folding

Definitions

  • the present invention relates to a plastic cabinet or case having rounded edges, particularly a piece of furniture in form of a closed web obtained from a composite flat strip having joint members for the final assembly of the cabinet.
  • the (open) cabinet so built as a closed web is adapted to house a TV receiver or to form the mainframe of a suspended cabinet.
  • cases for TV sets are built up by a closed web of wood or plastic material, in case veneered by a thin plastic sheet, and by two panels, respectively a front panel and a closing rear panel.
  • a somewhat similar construction can be recognized also in suspended cabinets and the like.
  • the present invention also applies to other -types of furniture.
  • the closed webs for TV receivers are usually built by injection molding a plastic material with the final volume of the TV case by the manufacturer whereas the assembly of the TV set is accomplished in the laboratories of other factories.
  • the wood and the inner panels are to be precisely milled without cutting the veneering to allow for the bending of the four sides and the final assembly requires reinforcement parts to be glued in order to strengthen the case.
  • additional supports, connections and reference shoulders for securing the components are to be built on the wooden parts with additional costs and complications.
  • the case is built in form of a plastic strip that is substantially two-dimensional and comprises three or four plastic panels glued or anyhow secured to a sheet of laminated plastic forming or carrying the outer veneering. Joint means is provided at adjacent edges of the panels for the final fastening together of the panels and laminate to form the assembled case, thereby reducing the assembly time to a few seconds.
  • FIG. 1 With reference to Fig. 1 there is shown an assembly strip according to the invention that comprises a panel 2 adapted to form the horizontal upper side of the assembl ed case, two equal panels 3 and 4 forming the vertical side walls of the case, and a sheet of laminated plastic 1 connecting such elements.
  • the panels are glued or anyhow attached to laminate 1, suitably spaced apart so that after turning by 90° the lateral panels the free portions of the laminate forms the recurved or rounded edges 22 of the assembled case shown in Fig. 2.
  • bottom panel. 5 of the case is built as a separate piece and is mounted at the end of the assembly.
  • the above is not to be considered as a limitation to building a strip of laminated plastic incorporating all the four panels that constitute the TV case.
  • the reason of the choice depends on the size of the TV set.
  • the linear envelope of a case for a 26" TV case can bring about a notable difference of costs between an embodiment having three panels and the embodiment having four panels, particularly when the panels are to be directly molded over the laminate. For cases having a smaller size the difference of costs is reduced and it is preferable the embodiment carrying all the four panels applied onto the strip.
  • each panel 2, 3 and 4 is provided with at least a pair of longitudinal ribs 7, 7 having the purpose of strengthening the structure, and with at least a series of joint members 8, more clearly shown in Figs. 3 to 5.
  • the strip incorporates three panels it is preferred that the end portions 10 of the lateral panels have a recurved shape and are provided with suitable members for fastening panel 5 (see Fig. 6).
  • Panel 5 is provided with vent slots 15, as well as with all the other components required for the assembly of the complete TV set, such as spacers, sockets, recesses, reference shoulders, added materials, etc. All the above components are not shown in the figure for simplicity. However it is to be understood that the TV case can be built in such a way that almost every required component is mounted on panel 5 (cathode ray tube, circuits, etc.). This way the TV case can be partially assembled by bending and securing the three sides and then bottom panel 5 carrying all the required components can be mounted to complete the case, thereby making easier the assembly operation of the final product.
  • Figs. from 3 to 5 show a preferred embodiment of the joint members for securing together the parts.
  • These members include flat tabs 23 rising from the panels and positioned slightly staggered.
  • the shape of tabs 23 is substantially triangular with a rounded vertex 24, the radius being the same foreseen for the rounded edges of the assembled case.
  • the curved end portion 28 of the panel extends for an arc of about 45° so as to evenly distribute the stresses on laminate 1 and matching the panels when the case is assembled.
  • Tabs 23 opposing on two panels are staggered in order to position themselves side by side (Fig. 5) when the case is assembled.
  • Each tab 23 carries a protruding pin 27 and a housing hole 26 having the same diameter. Pins and holes are properly positioned, e.g.
  • Fig. 3 shows how the end portions of the pins are tapered to make easier the introduction into holes 26.
  • Fig. 1 shows four tabs on each adjacent edge of the panels, however the number of tabs can be increased or decreased as desired. As it is evident, the force required to elastically deform tabs 23 in the rotating step is quite modest and can be further reduced by suitable tapering and choice of the angles.
  • Reinforcement ribs 29 and 30 staggered with respect to tabs 23 are provided to strengthen the structure opposing to fortuitous deformations. It is preferable to build ribs 29 and 30 as triangular ribs integral with the tabs. The latter in turn can be molded together with-the panels or be mounted subsequently.
  • the panels are of a plastic material such as shock resistant polystyrene and the covering or veneering sheet is a thermoplastic laminate, e.g. polystyrene.
  • this laminate is already treated to obtain the desired finishing (imitating wood or metal etc.) for example by applying a heat transferable film.
  • the case is assembled by rotating of 90° the lateral panels with respect to the inner one so as to bend the laminate over the corresponding curved portion of the panels that are then fastened into the final configuration by the joint members.
  • a suitable glue or solvent can be advantageously spread on the surfaces of the joints, e.g. by spraying, and in case even on the inner surface of the laminate in order to obtain a better resistance of the assembled case. It is evident that the finishing of the case is much cheaper since it is accomplised in advance over a flat surface.
  • the panels carry supports or references for the assembly of the parts forming the complete TV set such as loudspeakers, knobs, etc.
  • Fig. 5 it is shown a detail of the end edges 10 of the strip. They are provided with a guide groove 42 into which the end profile 40 of panel 5 slides. Flat tabs 43 can be provided in this area too, only having a support function.
  • a reinforcing portion 44 extending between two ribs 41 is equipped with pawls 49 in the middle portion and with two additional reinforcements 47 laterally positioned with respect to the latter.
  • Pawl 49 is molded with the panel by enlarging the corresponding edge 44 and comprises a shank 45 and a head 46 that define a rectangular recess together with the flat surface of edge 44.
  • the adjacent panel edge 55 is L shaped having an upper portion 50 and a lower portion 52 defining a recess 56 into which fits the upper part of edge 44 that is not enlarged. This way one obtains the fastening as for the horizontal forces applied to the assembled case.
  • Edge 50 is broken at an area opposing pawl 49, to form a plug 60 engaging recess 57 of pawl 49 when the case is assembled. This ensures the fastening of the case against vertical forces.
  • Panels can be molded and secured to the laminate in a centering frame by glueing or by ultrasonic bonding.
  • the sheet of finished laminate can be placed at the bottom of an injection mold wherein by press molding the panels are formed, simultaneously with a local fusion of the two elements (laminate and granulates injected).
  • the sheet of laminate can be coupled to the panels into an extruding machine for plastic granulates having the profile of the panel cross section and in this case a further milling operation is required to remove the portions below the molded edges of the case without cutting the thichness of the laminate.

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  • Casings For Electric Apparatus (AREA)
EP82830076A 1981-03-30 1982-03-29 Verbindungsstreifen und daraus hergestelltes, mit abgerundeten Ecken versehenes Gehäuse Expired EP0062013B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2081181 1981-03-30
IT20811/81A IT1137105B (it) 1981-03-30 1981-03-30 Mobile laminato a spigoli arrotondati assemblato a partire da una striscia sostanzialmente bidimensionale

Publications (2)

Publication Number Publication Date
EP0062013A1 true EP0062013A1 (de) 1982-10-06
EP0062013B1 EP0062013B1 (de) 1986-06-18

Family

ID=11172393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830076A Expired EP0062013B1 (de) 1981-03-30 1982-03-29 Verbindungsstreifen und daraus hergestelltes, mit abgerundeten Ecken versehenes Gehäuse

Country Status (3)

Country Link
EP (1) EP0062013B1 (de)
DE (1) DE3271743D1 (de)
IT (1) IT1137105B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538866A1 (fr) * 1983-01-03 1984-07-06 Allibert Sa Moyen de liaison entre deux panneaux adjacents
EP0185625A1 (de) * 1984-10-15 1986-06-25 Carlo Corna Plastikformteilsatz zum Gestalten eines Gehäuses, insbesondere für einen Fernsehempfänger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424379A (fr) * 1965-02-12 1966-01-07 Specialites C D Sa Procédé de fabrication de coffrets destinés à recevoir un appareillage électronique
FR2273183A1 (de) * 1974-06-01 1975-12-26 Duepree Hans Werner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424379A (fr) * 1965-02-12 1966-01-07 Specialites C D Sa Procédé de fabrication de coffrets destinés à recevoir un appareillage électronique
FR2273183A1 (de) * 1974-06-01 1975-12-26 Duepree Hans Werner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538866A1 (fr) * 1983-01-03 1984-07-06 Allibert Sa Moyen de liaison entre deux panneaux adjacents
EP0113300A1 (de) * 1983-01-03 1984-07-11 ALLIBERT S.A. Société Anonyme Française Verbindungsvorrichtung zwischen zwei Paneelen
EP0185625A1 (de) * 1984-10-15 1986-06-25 Carlo Corna Plastikformteilsatz zum Gestalten eines Gehäuses, insbesondere für einen Fernsehempfänger

Also Published As

Publication number Publication date
IT8120811A0 (it) 1981-03-30
DE3271743D1 (en) 1986-07-24
EP0062013B1 (de) 1986-06-18
IT1137105B (it) 1986-09-03

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