NL2009034C2

NL2009034C2 - A method of manufacturing a lamp; and a set.

Info

Publication number: NL2009034C2
Application number: NL2009034A
Authority: NL
Inventors: Patricia Ellen Weijburg; Lucas Carolus Laake
Original assignee: Yudo Design Products B V
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2013-12-23
Also published as: EP2677234A1

Description

100-964-03 A method of manufacturing a lamp; and a set

The present invention relates to a method of manufacturing a lamp, wherein a rod-shaped light-source is provided with a lampshade made 5 using a flexible sheet.

The flexible sheet is for example a sheet of plastic or a sheet of paper, including carton.

A problem with lamps is that they are sold pre-manufactured because they require a fair amount of skill to assemble. Also, they may 10 be rather voluminous, making them hard to transport (for example if bought as a souvenir when traveling) or to send by mail (which increases the cost of shipping). The object of the present invention is to provide a method of manufacturing an alternative lamp in a simple manner from materials that can be mailed and/or transported easily 15 first.

To this end, a method according to the preamble is characterized in that the flexible sheet is a blank provided with a cut, wherein said flexible sheet is fixed to said rod-shaped light-source by inserting the rod-shaped light-source into said cut so as to form the lampshade 20 and the flexible sheet holding on to the rod-shaped light-source.

Thus the method allows for the manufacture of a lamp with a frame-less lampshade. Its light weight allows the flexible sheet to remain in place by friction alone. The rod-shaped light-source is for example a fluorescent tube. The blank, optionally with the rod-shaped 25 light-source, may be easily transported in an envelope or rolled up in a shipping tube. A lamp manufactured in accordance with the method according to the invention can be easily disassembled for recycling.

The flexible sheet is preferably capable of allowing light to pass, for example because 30 - of openings in the sheet, and/or - it is over at least part of its surface area transparent and/or translucent.

The flexible sheet is for example paper, in particular carton, or plastic. It is preferably translucent. It is preferably provided with a 35 picture such as a photograph. In the present application, the term "blank" includes a blank folded one or more times to a flat folded state .

According to a favourable embodiment, the blank comprises a set of 2 cuts, said set of cuts comprising a first cut and a second cut, each of said first cut and said second cut comprising two ends so as to form two sheet areas separated by a main sheet section, wherein said flexible sheet is fixed to said rod-shaped light-source by inserting 5 the rod-shaped light-source into said two cuts so as to form the lampshade with the two sheet areas and the main sheet section forming loops holding on to the rod-shaped light-source.

In general, the two cuts will not be in line. The two cuts are preferably located such that the rod-shaped light-source inserted in 10 said two cuts extends transverse to both said cuts. The resilient nature of the flexible sheet forces the sheet areas and the main sheet section against the rod-shaped light-source (including a supply wire thereof). The presence of more than two cuts through which the rod-shaped light-source is inserted is not excluded.

15 According to a favourable embodiment, the blank comprises a second set of cuts, the total length of the two first cuts is more than 50% of the largest length L of the flexible sheet in a direction transverse to the inserted rod-shaped light-source, and the total length of the two second cuts being more than 50% of L, wherein the rod-shaped 20 light-source is held at a first side of the flexible sheet by loops formed by the first cuts and held at a second side of the flexible sheet opposite to the first side by loops formed by the second cuts.

This allows the rod-shaped light-source to be held by loops away from the main sections defined by the two sets of cuts.

25 According to a favourable embodiment, at least one of two loops of two different sets of cuts, said two loops holding the light-source, is provided with a secondary cut for engaging the other loop, said secondary cut ending in one of i) a cut of a set of cuts, and ii) an edge of the blank.

30 Such secondary cuts are useful for increasing the rigidity of the lamp.

According to a favourable embodiment, the flexible sheet comprises folds transverse to the cuts.

Thus a lamp having in cross-section a polygonal shape is provided. 35 Because the blank can be mailed and/or transported in a state where it is folded at least once, the size of the package to be mailed or transported may be halved, facilitating mailing and/or transporting thereof.

3

According to a favourable embodiment, two opposite ends of the flexible sheet are connected, said two opposite ends being transverse to the two cuts of said set for receiving the rod-shaped light-source.

Thus a more traditionally looking, three-dimensional lampshade is 5 provided which in its assembled state can not be mailed or transported as easily. The invention allows for easy disassembly, and the lamp can be transported/shipped easily again.

According to a favourable embodiment, the flexible sheet comprises at an end of the flexible sheet an adhesive layer.

10 This may be a gum-based adhesive layer that is activated using water, saliva etc. as known for envelopes. The adhesive will be present at an end that is transverse to the two cuts for receiving the rod-shaped light-source.

According to a favourable embodiment, the adhesive layer is 15 provided with a release liner, and the release liner is removed to attach the end with the adhesive to the opposite end of the flexible sheet.

The adhesive will in general be a pressure sensitive adhesive (PSA). This allows for enhanced adhesive properties, enhancing the 20 durability of the lamp while still allowing the method to be performed without any supplementary material.

According to a favourable embodiment, the opposite ends are provided with male organs and female organs for connecting said opposite ends.

25 This allows the opposite ends to be connected without glue, tape etc. A locking organ may be provided.

According to a favourable embodiment, the flexible sheet is a rectangular flexible sheet.

The cuts will run substantially parallel to two opposite first 30 sides and the two opposite second sides transverse to said opposite first sides will be connected to form the lamp shade.

According to a favourable embodiment, the rod-shaped light-source comprises a strip with Light Emitting Diodes.

These may be regular LEDs but also AMOLEDs etc. These are light 35 (don't weigh much), so it is OK to let the lamp manufactured in accordance with the present method hang by the supply wires (power cable) of the strip. Also, LEDs don't get hot, so there is no fire-hazard at all. In general, the strip comprises a transparent 4 housing for the LEDs.

According to a favourable embodiment, the flexible sheet is a light-transmitting flexible sheet.

This allows the lamp to spread light in more directions.

5 According to a favourable embodiment, the flexible sheet is provided with a picture.

The picture may be a photographic picture or a drawn picture. In particular with a flexible sheet of translucent material this results in a desirable lamp.

10 Finally, the present invention relates to a set comprising a light-source, wherein the set comprises a rod-shaped light-source and a blank in the form of a flexible sheet, said blank being a blank provided with a set of cuts comprising a first cut and a second cut, each of said first cut and said second cut comprising two ends so as to 15 form two sheet areas separated by a main sheet section, wherein said flexible sheet can be fixed to said rod-shaped light-source by inserting the rod-shaped light-source into said two cuts so as to form the lampshade with the two sheet areas and the main sheet section forming loops holding on to the rod-shaped light-source.

20 Such a set is suitable for use in the method according to the invention. The blank may comprise secondary cuts, an adhesive strip, and/or a picture, or any other type in accordance with subclaims as discussed above for the method claims.

The present invention will now be illustrated with reference to 25 the drawing where

Fig. 1 shows side view of a basic lamp comprising a light-source and a sheet;

Fig. 2 shows a bottom view on a lamp comprising a light source and two sheets; 30 Fig. 3 shows a cross-sectional view of two LED-strips known in the art;

Fig. 4 shows a perspective view of a lamp;

Fig. 5 shows a top view on a blank to be used as a flexible sheet in the lamp of Fig. 4; 35 Fig. 6 shows a bottom view of the lamp 100 of Fig. 4;

Fig. 7 is a bottom view of a lamp with a round cross-section;

Fig. 8 shows a blank for a foot;

Fig. 9 shows a top view on an alternative blank suitable for use 5 as a flexible sheet in the lamp of Fig. 4; and

Fig. 10 shows a top view on an alternative blank suitable for use as a flexible sheet in the lamp of Fig. 7.

Fig. 1 shows a lamp 100, said lamp comprising a flexible sheet 101 5 of translucent material, e.g. Mondi Color Copy, 160 g/m2. The flexible sheet is provided with a set 102 of first cut 111 and a second cut 112. As shown in Fig. 1, the first cut 111 and the second cut 112 do not have to run parallel. The two cuts of set 102 define a main section 113 between the first and the second cut and two sheet areas 114. A 10 light-source 120 provided with a cable 121, and connected to a power supply 122 having a connector 123 is passed through the first cut 111 and the second cut 112. The resilient nature of the flexible sheet 101 allows the loop 124 formed by the main section 113 to hold on to the light-source 120 by friction alone. The lamp 100 of this embodiment is 15 suitable for hanging close to a wall. This avoids rotation of the lamp 100 and prevents the light-source 120 from being predominantly visible.

Fig. 2 shows a bottom view of a lamp 100 that is basically the same as the lamp 100 of Fig. 1, but comprises two flexible sheets 101, 101' as described above. The loops 124, 124' formed by the main 20 sections 113 of both flexible sheets 101 hold on to the light-source 120.

A picture may be present at either side of the lamp 100.

Fig. 3 shows a cross-sectional view of two LED-strips 301 as known in the art (Ledberg lighting strip, IKEA), with their backs mounted 25 against each other. Each LED-strip 301 comprises a transparent plastic housing 302 and LEDs 303 mounted on a printed circuit board 304.

Fig. 4 shows a schematic perspective view of a lamp 100 comprising a lampshade 401 made by folding a flexible sheet 101 as will be explained in further detail below. Fig. 4 does not display the 30 light-source 120.

Fig. 5 shows the flexible sheet 101 as a blank 500 that comprises two sets 102 of cuts, each of the sets 102 comprising a first cut 111 and a second cut 112. These define sheet areas 114 and 114' that will form loops 124. The loops 124 are provided with secondary cuts 511, 512 35 transverse to the cuts 111, 112 and corresponding oppositely directed secondary cuts 511', 512'. The secondary cuts 511, 512 engage the secondary cuts 511', 512' so that the loops 124 receive the loops 124'.

The blank 500 is folded back on itself at the side edges 501, 501' 6 and connected, for example with glue, or, as shown here, using a patch 502 of pressure sensitive adhesive (PSA) parallel to a side edge 501'.

Folding lines 503 are indicated with dotted lines.

Fig. 6 shows a bottom view of the lamp 100 of Fig. 4 made using 5 the blank 500 of Fig. 5. It can be seen that the LED-strips 301 are held centrally, away from the remainder of the flexible sheet. A more homogenous illumination is achieved this way than in the embodiment of Fig. 2.

Fig. 7 corresponds substantially to Fig. 6, except it shows a 10 bottom view of a lamp 100 having a round cross-section because a blank 500 was used without folding lines 503.

Fig. 8 shows a blank for a foot 800. This foot 800 is useable for both lampshades 400 having a square cross-section and a circular cross-section. The sides 801, 801' are connected, e.g. using tape, and 15 the lamp 100 of Fig. 4 (or Fig. 7) is inserted into the four slots 802. A cut-out 803 is provided to guide cable 121 through. Thus, the lamp 100 may be a standard lamp (with foot 800) or a hanging lamp (without foot 800) at the choice of the user.

Fig. 9 substantially corresponds to Fig. 5, except that in fig. 5 20 the loops 124 and 124' are at the same height, whereas a lamp assembled using the blank of Fig. 9 has the loops in an axially non-overlapping fashion.

To this end, the loops 124' are formed using two cuts 111', 112'. Secondary (transverse) cuts are not necessary.

25 Fig. 10 substantially corresponds to Fig. 9, except that in fig.

10 the adhesive patch 502 is replaced by cuts 1001', 1002' and lips 1011, 1012 that are provided at the side edges 501, 501', wherein the lips 1011, 1012 can be received by cuts 1001', 1002' so as to connect the side edges and retain the form of the lampshade 401. To avoid the 30 lampshade 401 from spontaneously returning to an unbent shape, secondary lips 1021, 1022 are provided as catches. It is preferred that the lips 1011, 1012 enter the cuts 1001', 1002' from the surface of the blank that will form the outside of the lampshade 401. This achieves a better circular cross-sectional shape. The number of lips (and cuts) 35 may vary from 1 to very many, such as 20 or more.

The invention also relates to a blank with any of the features as discussed in the subclaims for the method.

The invention can be easily varied within the scope of the 7 appending claims. For example, a light source may be positioned out of the centre by using a combination of a short loop and a long loop. Also, there may be more than one light source.

Claims

1. Werkwijze voor het vervaardigen van een lamp (100), waarbij een staafvormige lichtbron (120) wordt voorzien van een lampenkap (401) die 5 is gemaakt onder gebruikmaking van een flexibel vel (101), met het kenmerk, dat het flexibele vel (101) een plano (500) is, voorzien van een snede, waarbij het genoemde flexibele vel (101) aan de genoemde staafvormige lichtbron (120) wordt bevestigd door de staafvormige lichtbron (120) in de genoemde snede te brengen teneinde de lampenkap 10 (401) te vormen en het flexibele vel (101) zich aan de staafvormige lichtbron (120) vasthoudt.A method of manufacturing a lamp (100), wherein a rod-shaped light source (120) is provided with a lampshade (401) made using a flexible sheet (101), characterized in that the flexible sheet (101) is a blank (500) provided with a cut, said flexible sheet (101) being attached to said rod-shaped light source (120) by inserting the rod-shaped light source (120) into said cut to provide the lampshade 10 (401) and the flexible sheet (101) adheres to the rod-shaped light source (120).

2. Werkwijze volgens conclusie 1, waarbij de plano een set (102) snedes omvat, welke genoemde set (102) snedes een eerste snede (111) en een 15 tweede snede (112) omvat, waarbij elk van de genoemde eerste snede (111) en de genoemde tweede snede (112) twee uiteinden omvat teneinde twee velgebieden (114) te vormen die worden gescheiden door een hoofd-velsectie (113), waarbij het genoemde flexibele vel (101) aan de genoemde staafvormige lichtbron (120) wordt bevestigd door de 20 staafvormige lichtbron (120) in de genoemde twee snedes (111, 112) te brengen teneinde de lampenkap (401) te vormen waarbij de twee velgebieden (114) en de hoofd-velsectie (113) lussen (124) vormen die zich aan de staafvormige lichtbron (120) vasthouden.2. Method according to claim 1, wherein the blank comprises a set (102) of cuts, said set (102) of cuts comprising a first cut (111) and a second cut (112), each of said first cut (111) ) and said second cut (112) includes two ends to form two sheet regions (114) separated by a main sheet section (113), said flexible sheet (101) being attached to said rod-shaped light source (120) by inserting the rod-shaped light source (120) into said two cuts (111, 112) to form the lampshade (401) with the two sheet regions (114) and the main sheet section (113) forming loops (124) hold onto the rod-shaped light source (120).

3. Werkwijze volgens conclusie 2, waarbij de plano (500) een tweede set (102) snedes omvat, de totale lengte van de twee eerste snedes groter is dan 50% van de grootste lengte L van het flexibele vel (101) in een richting die dwars staat op de ingebrachte staafvormige lichtbron (120), en waarbij de totale lengte van de twee tweede snedes groter is 30 dan 50% van L, waarbij de staafvormige lichtbron (120) wordt vastgehouden aan een eerste zijde van het flexibele vel (101) door lussen (124) gevormd door de eerste snedes en vastgehouden aan een tweede zijde van het flexibele vel (101) tegenover de eerste zijde door lussen (124) gevormd door de tweede snedes.The method of claim 2, wherein the blank (500) comprises a second set (102) of cuts, the total length of the two first cuts being greater than 50% of the largest length L of the flexible sheet (101) in one direction which is transverse to the inserted rod-shaped light source (120), and wherein the total length of the two second cuts is greater than 30% of L, the rod-shaped light source (120) being held on a first side of the flexible sheet (101) ) by loops (124) formed by the first cuts and retained on a second side of the flexible sheet (101) opposite the first side by loops (124) formed by the second cuts.

4. Werkwijze volgens conclusie 3, waarbij ten minste één van twee lussen (124) van twee verschillende reeksen snedes, welke genoemde twee lussen (124) de lichtbron (120) vasthouden, is voorzien van een 35 secundaire snede (511) voor het aangrijpen van de andere lus (124), waarbij de genoemde secundaire snede (511) eindigt in een van i) een snede van een set (102) snedes, en ii) een rand van de plano (500).4. Method according to claim 3, wherein at least one of two loops (124) of two different sets of cuts, said two loops (124) holding the light source (120), being provided with a secondary cut (511) for engaging of the other loop (124), wherein said secondary cut (511) ends in one of i) a cut of a set (102) cuts, and ii) an edge of the blank (500).

5. Werkwijze volgens een van de conclusies 2 tot 4, waarbij het flexibele vel (101) vouwen omvat die dwars op de snedes staan.The method of any one of claims 2 to 4, wherein the flexible sheet (101) comprises folds that are transverse to the cuts.

6. Werkwijze volgens een der voorgaande conclusies, waarbij twee tegenovergestelde uiteinden (501, 501') van het flexibele vel (101) 10 worden verbonden, waarbij de genoemde twee tegenovergestelde uiteinden (501, 501') dwars op de twee snedes van de genoemde set (102) staan voor het opnemen van de staafvormige lichtbron (120) .A method according to any one of the preceding claims, wherein two opposite ends (501, 501 ') of the flexible sheet (101) are connected, said two opposite ends (501, 501') transversely of the two cuts of said set (102) for receiving the rod-shaped light source (120).

7. Werkwijze volgens conclusie 6, waarbij het flexibele vel (101) aan 15 een uiteinde (501') van het flexibele vel (101) een kleefmiddellaag (502) omvat.7. Method according to claim 6, wherein the flexible sheet (101) comprises an adhesive layer (502) at one end (501 ') of the flexible sheet (101).

8. Werkwijze volgens conclusie 7, waarbij de kleefmiddellaag (502) is voorzien van een verwijderbare afdekstrook, en de verwijderbare 20 afdekstrook wordt verwijderd om het uiteinde (501') met het kleefmiddel aan het tegenovergestelde uiteinde (501) van het flexibele vel (101) te bevestigen.8. Method according to claim 7, wherein the adhesive layer (502) is provided with a removable cover strip, and the removable cover strip is removed around the end (501 ') with the adhesive on the opposite end (501) of the flexible sheet (101 ) to confirm.

9. Werkwijze volgens een van de conclusies 6 tot 8, waarbij de 25 tegenovergestelde uiteinden (501, 501') zijn voorzien van mannelijke organen (1011, 1012) en vrouwelijke organen (1001', 1002') om de genoemde tegenovergestelde uiteinden (501, 501') te verbinden.9. Method according to any of claims 6 to 8, wherein the opposite ends (501, 501 ') are provided with male members (1011, 1012) and female members (1001', 1002 ') around said opposite ends (501 , 501 ').

10. Werkwijze volgens een der voorgaande conclusies, waarbij het 30 flexibele vel (101) een rechthoekig flexibel vel (101) is.10. Method as claimed in any of the foregoing claims, wherein the flexible sheet (101) is a rectangular flexible sheet (101).

11. Werkwijze volgens een der voorgaande conclusies, waarbij de staafvormige lichtbron (120) een strip (301) met Light Emitting Diodes (licht afgevende diodes) omvat. 35A method according to any one of the preceding claims, wherein the rod-shaped light source (120) comprises a strip (301) with Light Emitting Diodes. 35

12. Werkwijze volgens een der voorgaande conclusies, waarbij het flexibele vel (101) een lichtdoorlatend flexibel vel (101) is.The method of any preceding claim, wherein the flexible sheet (101) is a light-transmitting flexible sheet (101).

13. Werkwijze volgens een der voorgaande conclusies, waarbij het flexibele vel is voorzien van een afbeelding.A method according to any one of the preceding claims, wherein the flexible sheet is provided with an image.

14. Samenstel dat een lichtbron (120) omvat, met het kenmerk, dat het 5 samenstel een staafvormige lichtbron (120) en een plano (500) in de vorm van een flexibel vel (101) omvat, waarbij de genoemde plano (500) een plano (500) is die is voorzien van een set (102) snedes welke een eerste snede (111) en een tweede snede (112) omvat, waarbij elk van de genoemde eerste snede (111) en de genoemde tweede snede (112) twee 10 uiteinden omvat teneinde twee velgebieden (114) te vormen gescheiden door een hoofd-velsectie (113), waarbij het genoemde flexibele vel (101) aan de genoemde staafvormige lichtbron (120) kan worden bevestigd door het inbrengen van de staafvormige lichtbron (120) in de genoemde twee snedes teneinde de lampenkap (401) met de twee velgebieden (114) 15 te vormen en waarbij de hoofd-velsectie (113) lussen (124) vormt die zich aan de staafvormige lichtbron (120) vasthouden.14. An assembly comprising a light source (120), characterized in that the assembly comprises a rod-shaped light source (120) and a blank (500) in the form of a flexible sheet (101), said blank (500) is a blank (500) provided with a set (102) of cuts comprising a first cut (111) and a second cut (112), each of said first cut (111) and said second cut (112) comprises two ends to form two sheet regions (114) separated by a main sheet section (113), said flexible sheet (101) being attachable to said rod-shaped light source (120) by introducing the rod-shaped light source (120) in said two cuts to form the lampshade (401) with the two sheet regions (114) and wherein the main sheet section (113) forms loops (124) that hold onto the rod-shaped light source (120).