EP0041905B1 - Verfahren und Vorrichtung zur Befestigung durch Verklebung eines biegsamen und undurchlässigen Materials auf einem Lampenschirmgestell - Google Patents

Verfahren und Vorrichtung zur Befestigung durch Verklebung eines biegsamen und undurchlässigen Materials auf einem Lampenschirmgestell Download PDF

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Publication number
EP0041905B1
EP0041905B1 EP81420073A EP81420073A EP0041905B1 EP 0041905 B1 EP0041905 B1 EP 0041905B1 EP 81420073 A EP81420073 A EP 81420073A EP 81420073 A EP81420073 A EP 81420073A EP 0041905 B1 EP0041905 B1 EP 0041905B1
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EP
European Patent Office
Prior art keywords
flexible
perforations
frame
lampshade
impervious material
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.)
Expired
Application number
EP81420073A
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English (en)
French (fr)
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EP0041905A1 (de
Inventor
Paul Michel David
Bernard Henri Etienne Rey
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.)
Redalum SA
Original Assignee
Redalum SA
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 Redalum SA filed Critical Redalum SA
Priority to AT81420073T priority Critical patent/ATE3083T1/de
Publication of EP0041905A1 publication Critical patent/EP0041905A1/de
Application granted granted Critical
Publication of EP0041905B1 publication Critical patent/EP0041905B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/26—Manufacturing shades

Definitions

  • the present invention relates to a method for fixing by gluing a flexible and impermeable material to a lampshade carcass, and it also relates to several embodiments of a device specially intended for the preparation of said material flexible and waterproof, for the implementation of this bonding method.
  • This invention therefore relates to the lighting industry and, more precisely, to the field of manufacturing lamps, the lampshades of which are made of flexible synthetic or plastic materials (except polyethylene), supported by a carcass which is formed by at least a lower circle and an upper circle, linked together by a number of reinforcements.
  • the term “circle” here designates an element closed on itself, which is not necessarily round but can have a polygonal shape, and which moreover is not necessarily contained in a horizontal plane but can have a wavy or "in festoons".
  • the main difficulty encountered in making this kind of lampshade consists in correctly stretching and fixing the flexible materials used on the carcass.
  • a method which consists of moistening materials in hot water, placing them in an oven, projecting hot air by ventilation before or during assembly on the carcass to make them more flexible and more extensible. to make them more easily fit the shape of the carcass.
  • the materials are then consus, stapled or glued with a solvent glue by rolling the material around the lower circle and the upper circle.
  • the object of the present invention is to provide a method making the attachment of these materials as easy as for permeable materials.
  • the subject of the invention is essentially a process for the fixing by gluing of a flexible and impermeable material to a lampshade carcass, formed by at least one lower circle and one upper circle, process in which makes perforations in said flexible and impermeable material, on zones corresponding to the parts of this material to be fixed on the circles of the carcass, and an adhesive which acts by capillarity is deposited on the outside of this material stretched over the carcass through the previously formed perforations, to fix the flexible and impermeable material on each circle of the carcass.
  • This process is therefore essentially characterized by the formation of perforations in the bonding zones, in order to allow the migration, by capillary action, of a very fluid adhesive, for example a cyanoacrylate adhesive, deposited externally after tensioning of the material on the carcass. . After gluing, the excess material, which is used to tension it, is cut flush with the lower and upper circles of the carcass.
  • a very fluid adhesive for example a cyanoacrylate adhesive
  • this process has the advantage of making it possible to obtain a perfect finish of the lampshade, after removal of the excess of the material as indicated above, without it is necessary, as in the case of sewn or stapled lampshades, to hide the seam or staples by one or more braids.
  • the flexible and impermeable material is shaped and stretched over the lampshade carcass before the perforations are made, and said perforations are formed on the tensioned material. , following the carcass circles.
  • the device for implementing this process generally consists of a tool or a motorized device provided with means allowing close perforations to be made on areas of the flexible and impermeable material corresponding to the parts to be fixed by bonding to the circles of the lampshade carcass.
  • the operator need only follow the circles of the carcass with the tool wheel, pressing on the outside of the material stretched over it, to obtain the desired perforations.
  • the process can also be partially mechanized, while retaining the same principle, by using for its implementation a portable device with a motor capable of rotating a support on the periphery of which are mounted, free in rotation on their axes, a series of toothed or needle wheels.
  • a variant of this device is a portable device with a motor capable of rotating a screw wheel, with multiple threads. In both cases, the operator holds the device by its motor forming a handle, and guides the device in a way to follow the circles of the frame with the wheel or wheels, in order to make the perforations by means of this or these wheels.
  • the flexible and impermeable material is perforated before it is shaped and in tension on the lampshade carcass, the areas of the perforations correspond to the parts coming into contact or near the carcass circles, when the material is tensioned.
  • the perforations are in this case carried out at the same time as the cutting of the panel of flexible and impermeable material corresponding to all or part of the lampshade, so that no additional manufacturing step is necessary. .
  • the device for implementing the method can be constituted by a cookie cutter, known per se for cutting panels of material corresponding to all or part of the lampshade, and provided with 'elements provided with needles which perform the perforations simultaneously with the cutting of a panel of material.
  • the invention also includes any lampshade, consisting of a flexible and impermeable material and of a carcass formed by at least one lower circle and one upper circle, connected by reinforcements, and produced, as regards the fixing by bonding of the material on said circles, by the process defined above.
  • the device according to the invention consists of a tool designated as a whole by the reference 1, having a handle 2 extended by a rod 3, at the end of which a yoke-shaped part 4 carries an axis 5, on which is mounted, free in rotation, a toothed wheel 6.
  • the ends of the two branches of the part 4 are rounded, so as not to injure the various materials.
  • the toothed wheel 6 is preferably made of hardened steel, with particularly sharp teeth.
  • the tool 1 is used for fixing a flexible and impermeable material 7 to a lampshade carcass formed by a lower circle 8 and an upper circle 9, connected together by a certain number of reinforcements 10.
  • the material 7 is stretched over this carcass, for example by means of a belt 11 which blocks, in the groove of a pulley 12, an excess of this material, protruding beyond the circle lower 8.
  • the operator moves the tool 1 by following the circles of the carcass, for example as illustrated in FIG. 3 by following the "scalloped" shape of the lower circle 8, this by pressing on the external face of the material 7 and by giving tool 1 a back-and-forth movement along arrow 13.
  • One thus obtains, by the action of the toothed wheel 6, perforations 14 of material 7, along the lower circle 8, as shown Figure 4, said perforations 14 having the form of slots.
  • the device is also constituted by a tool 1 having a handle 2 extended by a rod 3, at the end of which a part in the form of a yoke 4 carries an axis 5, on which is mounted, free to rotate, a wheel 6 '.
  • a wheel 6 ' As before, the ends of the two branches of part 4 are rounded, so as not to injure the different materials.
  • the wheel 6 ' here comprises at its periphery two series of needles 15 of hardened steel, directed radially, and spaced apart by a distance corresponding to the width of the wire or the like constituting the lower circle 8 of the carcass.
  • FIG. 7 shows a variant, in which the wheel 6 "has only one series of needles 15 ', the second series of needles being replaced by a shoulder 16.
  • the use of the tool 1 'according to FIGS. 5 and 6 is similar to that of the tool 1 illustrated by FIG. 3, and it makes it possible to obtain, on the material 7, along the lower 8 and upper circles. 9 of the carcass, perforations 17, as shown in FIG. 8, produced by the needles 15 and being in the form of two rows of small parallel holes.
  • a single row of perforations 17 ′ is obtained in the form of small holes, as shown in FIG. 9, the shoulder 16 making it possible to ensure good guiding of the 6 "wheel along the carcass circles.
  • the device comprises an electric or pneumatic motor 18, forming a handle and connected to a stirrup 19 serving as a bearing for an axis 20, coupled to the motor 18.
  • the axis 20 supports two parallel discs 21, connected at their periphery by a series of axes 22, on each of which is mounted, free in rotation, a toothed wheel 23.
  • the device thus comprises a series of toothed wheels 23, identical to the single toothed wheel of the tool according to Figures 1 and 2; in a variant not shown, the two discs 21 can also support a series of needle wheels, identical to the single wheel of the tool according to FIGS. 5 to 7.
  • the caliper 19 carries, in the extension of the axis 20 and opposite the motor 18, a ball 24 serving as a handle.
  • the operator need only grasp, for example with the right hand, the motor 18 serving as the first handle, and with the left hand the ball 24 constituting a second handle. Holding this device with two hands allows both to guide the discs 21 along the circles of the frame, and to exert a certain effort to achieve the perforation of the material, the result obtained being of the same kind than that shown in Figure 4 or Figure 8.
  • a fourth embodiment, shown in Figure 12, further comprises an electric or pneumatic motor 18 1 , driving an axis 20 '.
  • This axis 20 ′ carries, here, a screw wheel 25, with multiple threads, for example three or four in number.
  • This wheel 25 is made of hardened steel, its teeth being particularly sharp. During its use, this arrangement must be kept in such a way that its center line is in line with the circle of the carcass.
  • the perforations obtained 26 have the form of inclined slots, as shown in FIG. 13.
  • the device essentially comprises two arms 27 and 28, articulated on a pivot axis 29.
  • the end of the arms 27 and 28 ends in the form of a yoke, as indicated respectively in 30 and 31, and carries a gear wheel mounted freely in rotation, respectively 32 and 33, made of hardened steel with a particularly sharp toothing.
  • the lampshade carcass is positioned with its axis 34 parallel to the pivot axis 29 of the arms 27 and 28, the two circles 8 and 9 being opposite the respective toothed wheels 32 and 33
  • the width of the corresponding toothed wheel 32 is provided greater than the maximum height of the undulations of said circle.
  • the method according to the invention can be implemented differently, by a sixth embodiment of the device, represented in FIGS. 16 and 17.
  • the device comprises in this case a conventional cookie cutter 35, in form of frame with curved sharp edges, allowing to cut a panel of material 7 '(see Figure 18) corresponding to all or part of a lampshade, the shape and dimension of the panel 7' being of course defined depending on the shade to be produced.
  • the frame 35 carries two bars 36 and 37, which connect two of its opposite sides, and which themselves each carry several rows of needles, respectively 38 and 39, all these needles having their points turned by the same side as the sharp edges of the frame 35.
  • the invention is not limited to the sole embodiments of this device for fixing by gluing a flexible and impermeable material on a carcass of felling day which have been described above, by way of examples; it embraces, on the contrary, all the variants intended for the implementation of the same process, allowing the making of lampshades of all shapes and all dimensions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • External Artificial Organs (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (16)

1. Verfahren zur Befestigung durch Verkleben eines biegsamen und undurchlässigen Materiales (7, 7') auf einem Lampenschirmgestell, gebildet aus mindestens einem unteren Ring (8) und einem oberen Ring (9), die durch Stützstreben (10) miteinander verbunden sind, dadurch gekennzeichnet, daß man Perforationen (14, 17, 17', 26, 40, 41) in dem genannten biegsamen und undurchlässigen Material (7, 7') in Zonen entsprechend Abschnitten dieses Materiales (7, 7'), die auf den Ringen (8, 9) des Gestelles zu befestigen sind, erzeugt und daß man auf der Außenseite dieses auf dem Gestell gespannten Materiales (7, 7') einen Leim aufträgt, der durch Kapillarität durch die zuvor gebildeten Perforationen (14, 17, 17', 26, 40, 41) hindurchwirkt, um das biegsame und undurchlässige Material (7, 7') auf jedem Ring (8, 9) des Gestelles zu befestigen.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das biegsame und undurchlässige Material (7) auf dem Lampenschirmgestell in Form gebracht und gespannt wird, bevor Perforationen (14, 17, 17', 26) erzeugt werden und daß man die genannten Perforationen in dem gespannten Material (7) erzeugt, indem man den Ringen (8, 9) des Gestelles folgt.
3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das biegsame und undurchlässige Material (7') vor seiner Formung und Spannung auf dem Lampenschirmgestell perforiert wird, wobei die Perforationszonen (40, 41) den Abschnitten entsprechen, die im Augenblick der Spannung des Materiales (7') mit den Ringen (8, 9) des Gestelles in Kontakt oder in Nachbarschaft kommen.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Perforationen (40, 41) zu gleicher Zeit wie das Zuschneiden der Zuschnitte des biegsamen und undurchlässigen Materiales (7') entsprechend der Gesamtheit oder eines Teiles des Lampenschirmes erzeugt werden.
5. Vorrichtung für die Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß es durch ein Werkzeug (1, 1', 35) oder ein mit einem Motor (18, 18') versehenes Gerät gebildet ist und mit Mitteln (6, 6', 6", 23, 25, 32, 33, 38, 39) für die Erzeugung aneinander angenäherter Perforationen in Zonen des biegsamen und undurchlässigen Materiales (7, 7') entsprechend den durch Verkleben auf den Ringen (8, 9) des Lampenschirmgestelles zu befestigenden Materialabschnitten versehen ist.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sie aus einem Werkzeug (1, 1') mit einem Griffstiel (2) gebildet ist, der mit einem eine Achse (5) tragenden Abschnitt (4) verbunden ist, auf der frei drehbar ein Rad (6, 6', 6") gelagert ist, das an seinem Umfang mit Mitteln zur Erzeugung von Perforationen (14, 17, 17') in dem biegsamen und undurchlässigen Material versehen ist.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das Werkzeug (1) mit einem verzahnten Rad (6) für die Erzeugung von Perforationen (14) versehen ist.
8. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das Werkzeug (1') mit einem Rad (6') versehen ist, das an seinem Umfang zwei Reihen von radial abstehenden Nadeln (15) aufweist.
9. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das Werkzeug (1') ein Rad (6") aufweist, das ein einzige Reihe von Nadeln (15') sowie eine Führungsschulter (16) hat.
10. Vorrichtung nach einem der Ansprüche 6-9, dadurch gekennzeichnet, daß der Abschnitt (4) des Werkzeuges (1, 1'), der die Achse (5) trägt, auf der das Rad (6, 6',6") gelagert ist, gabelförmig ist, wobei die Enden der Gabelarme abgerundet sind.
11. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sie aus einem tragbaren Gerät mit einem Motor (18) gebildet ist, mit dem ein Support (21) rotierend antreibbar ist, an dessen Umfang frei drehbar auf ihren Achsen (22) eine Reihe von verzahnten oder mit Nadeln versehenen Rädern (23) gelargert sind.
12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß sie auf der Seite der Reihe von Rädern (23), die dem als einen ersten Handgriff dienenden Motor (18) entgegengesetzt liegt, eine Kugel (24), die als zweiter Handgriff dient, aufweist.
13. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sie durch ein tragbares Gerät mit einem Motor (18') gebildet ist, mit dem ein Schraubenrad (25) mit Mehrfachgewinde rotierend antreibbar ist.
14. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sie zwei um eine Achse (29) schwenkbare Arme (27, 28) aufweist, die jeder ein frei drehbar gelagertes verzahntes Rad (32, 33) tragen, die unter Druckausübung auf dem Lampenschirm abstützbar sind, wobei die Perforation des biegsamen und undurchlässigen Materiales (7) längs der Ringe (8, 9) des Gestelles durch die Drehung des Lampenschirmes um seine Längsachse (34) erfolgt, die parallel zur Schwenkachse (29) der genannten Arme (27, 28) angeordnet ist.
15. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sie aus einer für das Zuschneiden von Materialzuschnitten (7') entsprechend der Gesamtheit oder eines Abschnittes eines Lampenschirmes bekannten Stanzer (35) gebildet ist, die mit Nadeln (38, 39) versehene Elemente (36, 37) aufweist, die die Perforationen (40, 41) zeitgleich mit dem Zuschneiden des Materialzuschnittes (7') erzeugen.
16. Lampenschirm, gebildet aus einem biegsamen und undurchlässigen Material (7, 7') und einem Gestell aus mindestens einem unteren Ring (8) und einem oberen Ring (9), die durch Stützstreben (10) miteinander verbunden sind, dadurch gekennzeichnet, daß er, was die Befestigung durch Verkleben des Materiales (7, 6') auf den genannten Ringen (8, 9) betrifft, durch das Verfahren nach einem der Ansprüche 1-4 hergestellt ist.
EP81420073A 1980-06-10 1981-05-14 Verfahren und Vorrichtung zur Befestigung durch Verklebung eines biegsamen und undurchlässigen Materials auf einem Lampenschirmgestell Expired EP0041905B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81420073T ATE3083T1 (de) 1980-06-10 1981-05-14 Verfahren und vorrichtung zur befestigung durch verklebung eines biegsamen und undurchlaessigen materials auf einem lampenschirmgestell.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8013343A FR2484059A1 (fr) 1980-06-10 1980-06-10 Procede et dispositif pour la fixation par collage d'un materiau souple et impermeable sur une carcasse d'abat-jour
FR8013343 1980-06-10

Publications (2)

Publication Number Publication Date
EP0041905A1 EP0041905A1 (de) 1981-12-16
EP0041905B1 true EP0041905B1 (de) 1983-04-13

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Family Applications (1)

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EP81420073A Expired EP0041905B1 (de) 1980-06-10 1981-05-14 Verfahren und Vorrichtung zur Befestigung durch Verklebung eines biegsamen und undurchlässigen Materials auf einem Lampenschirmgestell

Country Status (5)

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EP (1) EP0041905B1 (de)
AT (1) ATE3083T1 (de)
DE (1) DE3160177D1 (de)
ES (1) ES502896A0 (de)
FR (1) FR2484059A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1710516A (en) * 1928-05-14 1929-04-23 Benjamin H Shapiro Ornamental lamp shade and method of making same
FR2367983A1 (fr) * 1976-10-13 1978-05-12 Redalum Procede et dispositif pour tendre et fixer un tissu sur une carcasse d'abat-jour
FR2404798A2 (fr) * 1977-09-30 1979-04-27 Redalum Procede et dispositif pour tendre et fixer un tissu sur une carcasse d'abat-jour

Also Published As

Publication number Publication date
ATE3083T1 (de) 1983-04-15
EP0041905A1 (de) 1981-12-16
FR2484059A1 (fr) 1981-12-11
DE3160177D1 (en) 1983-05-19
FR2484059B1 (de) 1982-07-30
ES8203484A1 (es) 1982-04-01
ES502896A0 (es) 1982-04-01

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