Bookmark with LED lighting

Abstract

Bookmark with LED lighting (1) comprising a flexible support (10) provided with a first LED-chip (21) and at last a second LED-chip (22) and a printed circuit board (30) to electrically connect the first and second LED-chips (21,22) to a battery ( 60 ). The printed circuit board (30) comprises a first track (31) made of a conducting material comprising a first end pad (33) and a second track (32) made of a conducting material and comprising a second end pad (34). One of the first and second end pads (33,34) is arranged in contact with the positive pole (61) of the battery (60) and the other one is in contact with the negative pole (62) of the battery (60). The first LED-chip (21) is provided with a positive pole (23) connected to the first track (31) and with a negative pole (24) connected to the second track (32). The second LED-chip (22) is provided with a positive pole (25) connected to the second track (32) and with a negative pole (26) connected to the first track (31) in such a way to selectively and alternatively obtain a first lighting configuration where said first LED-chip (21) is turned on and said second LED-chip (22) is turned off, and a second lighting configuration, where, instead, the second LED-chip (22) is turned on and the first LED-chip (21) is turned off.

Description

[0001] TITLE

[0002] BOOKMARK WITH LED LIGHTING

[0003] DESCRIPTION

[0004] Field of the invention

[0005] The present invention relates to a bookmark of the type which is normally used to find again a page of interest in a book, and more precisely it relates to a bookmark provided with LED lighting .

[0006] Description of the prior art

[0007] As known, bookmarks are widely used, which simply consist of a strip of cardboard, wood, plastic, or metal , which are used for easily finding the page of interest in a book .

[0008] Bookmark also exist provided with a light , for example a LED light , that have , therefore , also the function of allowing the reader to illuminate the page of interest in low-light conditions .

[0009] However, the bookmarks of this latter type are normally complex from a construction point of view and have a great thickness , because it is necessary to equip them with electrical circuits able to turn on and off the source of light of which they are provided with .

[0010] In particular, a component which, generally, considerably increases the thickness of the bookmark of this type is the ON / OFF switch, whose thickness even though it can be reduced remains , anyway, high with respect to the rest of the article .

[0011] Another drawback of this type of bookmark which is provided with a light source , it is that , when it is positioned inside the book, unavoidably the pressure exerted by the pages which allows to hold it in place , can operate the aforementioned switch, thus causing the light to be turned of f and, therefore , signi ficant discomfort for the reader .

[0012] Another drawback of the bookmarks provided with light is that they are not able to obtain di f ferent lighting conditions because they are provided with one or more light sources which are , anyway, all contemporaneously turned on or turned of f . Therefore , it is not possible to adapt the lighting of the page to the surrounding lighting conditions with the possibility of unpleasant reflections or low lighting of the page which make di f ficult or even not possible to read the page same .

[0013] Examples of prior art bookmarks are described in CN205705825 and CN207105922 . In both these cases , however, the bookmarks have the following drawbacks . Firstly, switches are provided for turning on and of f the LED-chips of which they are provided with . Therefore , the electronic circuit both of CN205705825 and of CN207105922 is complex from a construction point of view and heavy .

[0014] Furthermore , both CN205705825 and CN207105922 provide two di f ferent lighting configurations , and precisely a first lighting configuration, where only one LED-chip is turned on, and, in the other case , both the LED-chips are turned on . However, both the bookmark described in CN205705825 and the bookmark described in CN207105922 comprises two LED- chips which are connected in parallel to each other . Therefore , it is not possible to alternatively turn on the two LED-chips . This strongly limits the possible lighting configurations which can be obtained . Summary of the invention

[0015] It is , therefore , an obj ect of the present invention to provide a bookmark with LED lighting which is able to overcome the aforementioned drawbacks of the prior art bookmarks .

[0016] It is also an obj ect of the present invention to provide a bookmark with LED lighting having a slight thickness .

[0017] It is a further obj ect of the present invention to provide a bookmark with LED lighting which is able to emit at least two lights of di f ferent type , in particular with di f ferent temperatures .

[0018] It is , in particular, an obj ect of the present invention to provide a bookmark with LED lighting which is simple from a construction point of view .

[0019] It is still another obj ect of the present invention to provide a bookmark with LED lighting which does not need a switch for turning on and of f the emitted light .

[0020] It is still another particular obj ect of the present invention to provide a method for manufacturing a bookmark with LED lighting having the above-described advantages .

[0021] These and other obj ects are achieved by a bookmark with LED lighting comprising a flexible support provided with :

[0022] - a first LED-chip and at least a second LED-chip ;

[0023] - a printed circuit board arranged to electrically connect said first and second LED-chips to a battery, said printed circuit board comprising :

[0024] - a first track made of a conducting material comprising a first end pad;

[0025] - a second track made of said conducting material and comprising a second end pad, wherein at least one of said first and second end pads is arranged, in use , in contact with the positive pole of said battery, and the other is arranged in contact with the negative pole of said battery; whose main characteristic of said bookmark with LED lighting is that said first LED-chip is provided with a positive pole connected to said first track and with a negative pole connected to said second track and said second LED-chip is provided with a positive pole connected to said second track and with a negative pole connected to said first track, in such a way to selectively and alternatively obtain a first lighting configuration, where said first LED-chip is turned on and said second LED-chip is turned of f , when said first end pad is in contact with said positive pole of said battery and said second end pad is in contact with said negative pole of said battery, or a second lighting configuration, where , instead, said second LED-chip is turned on and said first LED-chip is turned of f , when said second end pad is in contact with said positive pole of said battery and said first end pad is in contact with said negative pole of said battery .

[0026] Other features and related embodiments of the present invention are set out in the dependent claims .

[0027] In particular, at least a first magnet positioned on a first side of the flexible support and a second magnet positioned on a second side of the flexible support opposite to the first side can be , furthermore , provided .

[0028] More in particular, the aforementioned first and second magnets can be arranged to keep the battery in at least a first predetermined position with respect to the flexible support , both in the first lighting configuration and in the second lighting configuration .

[0029] In a preferred embodiment , the first and second magnets are , furthermore , arranged to hold the battery in a respective second predetermined position with respect to the flexible support in a power-of f configuration .

[0030] In particular, in the power-of f configuration the battery is not arranged in contact with either the first end pad or the second end pad, whereby the first and second LED-chips are turned of f .

[0031] In an embodiment of the invention, the flexible support comprises :

[0032] - a first part having a first face provided with :

[0033] - said first track comprising said first end pad; and

[0034] - a first portion of said second track, said first portion comprising a first plurality of secondary pads ;

[0035] - a second part having a respective first face provided with :

[0036] - a second portion of said second track, said second portion comprising a second plurality of secondary pads and said second end pad .

[0037] In particular, in use , the first and second parts of the flexible support are superimposed to each other in such a way to arrange the respective first faces in contact with each other, in order to place each secondary pad of the first plurality in contact with a respective secondary pad of the second plurality thus forming in this way the second track of the printed circuit board .

[0038] In particular, the first and second end pads can be positioned at a first and at a second support portion of the flexible support , respectively . More in particular, the first and second support portions of the flexible support are configured in such a way to be moved away from and toward each other, in such a way to allow to arrange the battery between the aforementioned first and second end pads .

[0039] More precisely, the first and second support portions are configured to move from a spaced apart position in order to allow the battery to be positioned between the first and second end pads , and a close pos ition where the positive pole of said battery is arranged in contact with one of the first and second end pads , and the negative pole is arranged in contact with the other one of the first and second end pads .

[0040] In particular, at least one of the first and second support portions can be configured to be inclined along a weakening line with respect to a main portion of the flexible support .

[0041] Preferably, the first and second parts of the flexible support can be glued to each other at the respective first faces .

[0042] In particular, the secondary pads of the first plurality can be made of a tin-based metallic alloy .

[0043] In particular, the secondary pads of the second plurality can be made of a conducting material di f ferent from that one of the secondary pads of the first plurality . For example , the secondary pads of the second plurality can be made of gold .

[0044] Preferably, the first and second LED-chips can be configured to emit a di f ferent type of light , that means a light with a different temperature, in such a way to select each time the preferred type of lighting.

[0045] In particular, the first and second LED-chips are configured to emit, respectively, a light at a first predetermined temperature Tl, and at a second predetermined temperature T2, with T1^T2. More in particular, the first predetermined temperature Tl belongs to a first predetermined range of temperatures ATI, corresponding to a first type of light, and the second temperature T2 belonging to a second predetermined range of temperatures AT2, corresponding to a second type of light different from the first type of light.

[0046] In particular, it is AT1^AT2.

[0047] More in particular, the first and second types of light can be alternatively selected among:

[0048] - warm light, in this case, as known, the first or the second temperature Tl, or T2, is comprised between 2700K and 3000K;

[0049] - neutral light, in this case, as known, the first or the second temperature Tl, or T2, is comprised between 4000K and 4500K; and

[0050] - cool light, in this case, as known, the first or the second temperature Tl, or T2, is comprised between 5000K and 6500K, or even higher than 6500K.

[0051] In an embodiment of the invention, the first LED-chip can be arranged to emit a warm light, that means with a temperature comprised between 3000K and 3550K.

[0052] In particular, the second LED-chip can be arranged to emit a cool light, i.e. a light with a temperature higher than 4000K.

[0053] In particular, the first and at least a second LED- chips are positioned at a first end portion of the flexible support . More in particular , the first and second main pads are positioned at a second end portion opposite to the first end portion of the flexible support .

[0054] According to another aspect of the invention, a method for manufacturing a bookmark comprises the steps of :

[0055] - providing a flexible support provided with a first LED-chip, at least a second LED-chip, and a printed circuit board to electrically connect the first and second LED-chips to a battery, said flexible support comprising :

[0056] - a first part having a first face provided with a first track made of a conducting material comprising a first end pad and a f irst portion of a second track made of said conducting material and comprising a first plurality of secondary pads made of a tin-based metallic alloy;

[0057] - a second part having a respective first face provided with a second portion of said second track made of said conducting material and comprising a second end pad and a second plurality of secondary pads made of a conducting material , said first and second end pads being arranged, in use , in contact with a positive pole and with a negative pole of said battery for electrically supplying said first or second LED-chip ;

[0058] - superimposing said first and second parts one on the other in such a way to arrange said respective first faces in contact with each other, in order to arrange each secondary pad of said first plurality in contact with a respective secondary pad of said second plurality in such a way to form said second track of said printed circuit board;

[0059] - heating said first and second parts superimposed one on the other by a heating device up to a predetermined temperature T higher than the melting temperature of said tin-based metallic alloy in such a way to firmly anchor said secondary pads of said first plurality to the respective secondary pads of said second plural ity . According to another aspect of the invention, a bookmark with LED lighting comprises a flexible support provided with :

[0060] - at least a LED-chip ;

[0061] - a printed circuit board arranged to electrically connect said or each LED-chip to a battery, said printed circuit board comprising :

[0062] - a first track made of a conducting material comprising a first end pad;

[0063] - a second track made of said conducting material and comprising a second end pad, said first and second end pads being arranged, in use , in contact with the positive pole and the negative pole of the aforementioned battery; wherein said or each, LED-chip is provided with a positive pole connected to said first track and with a negative pole connected to said second track when said first end pad is in contact with said positive pole of said battery and said second end pad is in contact with said negative pole , wherein a first and a second magnet are , furthermore , provided positioned at opposite sides of said flexible support with respect to said first and second end pads , and wherein said magnets are arranged to hold said battery in at least a first predetermined pos ition with respect to said flexible support in a lighting configuration, i . e . when said or each LED-chip is turned on, and in a predetermined second position with respect to said flexible support in a power- of f configuration, where said battery is not in contact either with the first or the second end pad whereby the or each LED-chip is turned of f .

[0064] In particular, the flexible support can have a thickness comprised between 2 mm and 8 mm, advantageously between 3 mm and 6 mm .

[0065] In an embodiment foreseen, the flexible support can have a width comprised between 10 mm and 60 mm, advantageously comprised between 20 mm and 50 mm, preferably comprised between 25 mm and 35 mm .

[0066] Advantageously, the flexible support can have a length comprised between 150 mm and 220 mm, advantageously comprised between 160 mm and 200 mm, preferably comprised between 180 mm and 190 mm .

[0067] Brief description of the drawings

[0068] The invention will be now illustrated with the following description of an exemplary embodiment thereof , exempli fying but not limitative, with reference to the attached drawings wherein :

[0069] - Fig . 1 diagrammatically shows a plan view of a first embodiment of a bookmark with LED lighting, according to the present invention ;

[0070] - Fig . 2 diagrammatically shows the bookmark with LED lighting of figure 1 in a side elevation perspective view;

[0071] - Fig . 3 diagrammatically shows an enlargement of a portion of the bookmark of figure 2 to highlight some technical characteristics ;

[0072] - Fig . 4 diagrainmatically shows a side elevation perspective view of the bookmark with LED lighting of figure 1 in a first lighting configuration;

[0073] - Fig . 5 diagrainmatically shows an enlargement of a portion of bookmark of figure 2 to highlight some technical characteristics ;

[0074] - Fig . 6 diagrainmatically shows an enlargement of a portion of bookmark of figure 2 to highlight some technical characteristics when the bookmark with LED lighting works in the second lighting configuration;

[0075] - Fig . 7 diagrainmatically shows a side elevation perspective view of the bookmark of figure 2 in the second lighting configuration;

[0076] - Figures from 8 to 11 diagrainmatically show an alternative embodiment of the bookmark with LED lighting in the first lighting configuration;

[0077] - Figures from 12 to 15 diagrainmatically show la alternative embodiment of bookmark with LED lighting of figures 8-11 in the second lighting configuration;

[0078] - Figures 16 and 17 diagrainmatically show the bookmark with LED lighting of figures 8 to 15 in the power-off configuration;

[0079] - Figures from 18 to 20 diagrainmatically show plan views of the first part of another alternative embodiment of the bookmark with LED lighting, according to the invention, and related partial enlargements ;

[0080] - Figures from 21 to 23 diagrainmatically show plan views of the second part of the alternative embodiment of the bookmark with LED lighting of figures 18-20 , and related partial enlargements ; - Fig . 24 diagrammatically shows a side elevation perspective view of the bookmark with LED lighting, according to the invention, in working conditions ;

[0081] - Figures from 25 to 32 diagrammatically show perspective side views of further alternative embodiments of the bookmark with LED lighting, according to the invention, in dif ferent working conditions ;

[0082] - Fig . 33 diagrammatically shows a transversal cross section view of the bookmark with LED lighting of figure 31 according to arrows XXXI I I -XXXI I I ;

[0083] - Fig . 34 diagrammatically shows a longitudinal cross section view of the bookmark with LED lighting of figure

[0084] 31 according to arrows XXXIV-XXXIV;

[0085] - Fig . 35 diagrammatically shows an enlargement of a portion of figure 34 to highlight some technical characteristics ;

[0086] - Fig . 36 diagrammatically shows a longitudinal cross section view of the bookmark with LED lighting of figure

[0087] 32 according to arrows XXXVI-XXXVI ;

[0088] - Fig . 37 diagrammatically shows an enlargement of a portion of figure 36 to highlight some technical characteristics ;

[0089] - Fig . 38 diagrammatically shows a plan view of the first part of another alternative embodiment of the bookmark with LED lighting, according to the invention;

[0090] - Fig . 39 shows an enlargement of a part of the bookmark with LED lighting of figure 33 to highlight some technical characteristics ;

[0091] - Fig . 40 diagrammatically shows a side elevation perspective view of the bookmark with LED lighting of figure 31 during working conditions . Detailed description of an exemplary embodiment of the invention

[0092] As diagrammatical ly shown in figure 1 , a bookmark with LED lighting 1 , according to the invention, comprises a flexible support 10 , preferably of thin-plate shape , for example a small plate , and which is , advantageously, flexible due to the reduced thickness , for example comprised between 2 mm and 8 mm, advantageously comprised between 3 mm and 6 mm . The flexible support 10 , preferably made of polyamide , or polyimide , in particular Kapton, i s provided with a first LED-chip 21 and with at least a second LED- chip 22 . The flexible support 10 is , furthermore , provided with a printed circuit board 30 arranged to electrically connect the first and second LED-chips 21 and 22 to a battery 60 . In particular, the printed circuit board 30 comprises a first track 31 made of a material conducting electricity, for example copper, comprising a first end pad 33 . The printed circuit board 30 comprises , furthermore , a second track 32 made of the aforementioned material conducting electricity, or in a di f ferent conducting material , and comprising a second end pad 34 . More in detail , in use , one of the first and second end pads 33 , or 34 , is arranged in contact with the positive pole 61 of the battery 60 , preferably a coin battery, and the other is arranged in contact with the negative pole 62 of the same battery 60 .

[0093] According to what is provided by the invention, the first LED-chip 21 is provided with a positive pole 23 connected to the first track 31 and the negative pole 24 of the same is connected to the second track 32 . The positive pole 25 of the second LED-chip 22 is , instead, connected to the second track 32 , and the negative pole 26 is connected to the first track 31 . In this way, it is possible to selectively and alternatively provide a first lighting configuration, where the first LED-chip 21 is turned on and the second LED-chip 22 is turned of f , when the first end pad 33 is in contact with the positive pole 61 of the battery 60 , and the second end pad 34 is in contact with the negative pole 62 of the battery 60 same , or a second lighting configuration, where , instead, the second LED-chip 22 is turned on and the first LED-chip 21 is turned of f , when the second end pad 34 is in contact with the positive pole 61 of the battery 60 and the first end pad 33 is in contact with the negative pole 62 of the battery 60 . The solution according to the present invention allows , on the one hand, to avoid the need to use a switch for turning on or of f the 2 LED-chips 21 and 22 , and, on the other hand, to select , each time , the LED-chip to be turned on in order to achieve the desired lightness .

[0094] As diagrammatically shown in the figures from 3 to 15 , the battery 60 is , preferably, a coin battery, and, therefore , in working conditions of the bookmark 1 , the opposite faces 61 and 62 , at which the positive and negative poles are , respectively, positioned, are in contact with the first and second end pads 33 and 34 , respectively . In this case , therefore , as diagrammatically shown in the figures from 3 to 15 , for moving from the first lighting configuration ( see figures 3 and 4 and figures 8 to 11 ) to the second lighting configuration ( see figures 5 to 7 , and figures 12 to 15 ) , or vice versa, will be suf ficient to exchange the polarity 61 and 62 of the battery 60 in contact with the end pads 33 and 34 , simply turning the battery 60 upside down .

[0095] In a preferred embodiment , the first LED-chip 21 is arranged to emit a warm light , that means with a temperature between 3000K and 3550K, whilst the second LED-chip 22 is arranged to emit a cool light , that means a light with a temperature higher than 4000K . It is also possible that at least one of the two used LED-chips 21 and 22 is arranged to emit neutral light .

[0096] In a further embodiment of the invention, the 2 LED- chips 21 and 22 are able to emit the same type of light , that means that are both able to emit warm light , or cool light , or neutral light . In this case , the di f ferent lighting will be given, for example , by the di f ferent position of the 2 LED-chips 21 and 22 with respect to the flexible support 10 . In the embodiments of the invention described above with reference to the figures 1 to 7 , the battery 60 can be held in position for example by a blocking member 41 , such as a clip ( see figure 4 ) , or an elastic, or another similar blocking member 41 ( see figure 7 ) . In an alternative embodiment of the invention not shown for simplicity, one of the two end pads 33 and 34 , can be arranged at a removable portion provided with a stop element such as a small tooth adapted to engage in a seat made in the remaining part of the flexible support 10 .

[0097] As diagrammatically shown in the figures 8 to 15 , the bookmark 1 , at opposite sides 15a and 15b the flexible support 10 rispetto ai first and second end pads 33 and 34 , can be , furthermore , provided with a first and a second magnet 45a and 45b, for example a first and a second neodymium magnet , each of which having, advantageously, a thickness less than 2 mm, preferably a thickness less than 1 mm, for example a thickness of about 0 . 5 mm .

[0098] More in detail , the aforementioned magnets 45a and 45b are arranged to hold the battery 60 in at least a first predetermined position with respect to the flexible support 10 , and more precisely between the first and second end pads 33 and 34 , both when the bookmark with LED lighting 1 works in the aforementioned first lighting configuration and when it works in the second lighting configuration . The aforementioned first and second magnets 45a and 45b are , preferably, also arranged to hold the battery 60 in a respective second predetermined position, that means at the side 15a, or at the opposite side 15b, of the flexible support 10 , when the bookmark with LED lighting 1 is arranged in a power-of f configuration ( see figures 16 and 17 ) , where the battery 60 is not arranged in contact either with the first or the second end pad 33 and 34 , whereby both the first LED-chip 21 and the second LED-chip 22 are turned of f . In this way, when the bookmark 1 is used for illuminating the pages of the book, the battery 60 will be immediately available and the user will provide to interpose the same between the first and second end pads 33 and 34 , avoiding to have to look it in another place in order to turn on the first or the second chip-LED 21 or 22 .

[0099] The magnets 45a and 45b are arranged to exert a magnetic force such to hold the battery 60 in the correct working position where it electrically supplies the first or the second LED-chip 21 or 22 , through the printed circuit board 30 to provide the first lighting configuration ( figures 8 to 11 ) or the second lighting configuration ( figures 12 to 15 ) .

[0100] Notwithstanding above it has been made reference to a first and a second magnet 45a and 45b, in an embodiment of the invention not shown in the figure , only one magnet 45 can be present with the same aims described in the case of two magnets 45a and 45b .

[0101] As diagrammatically shown in the figures 1 to 15 , the first and second end pads 33 and 34 are positioned, respectively, at a first and a second support portion 17 and 18 of the flexible support 10 . In particular, the first and second support portions 17 and 18 are configured in such a way that they can be moved away from or toward each other , in such a way to move from a spaced apart position in order to allow the battery 60 to be arranged between the first and second end pads 33 and 34 , and a close position to allow the battery 60 to be positioned with the positive pole 61 in contact with one of the first and second end pads 33 and 34 , and with the negative pole 62 in contact with the other end pad 34 or 33 . In this case , it is possible to provide at least one magnet 45a, or 45b, positioned on at least one side 15a, or 15b, of the flexible support 10 and arranged to exert a magnetic force of attraction which opposes the movement of the support portion 17 , or 18 , of the flexible support 10 from the close position to the aforementioned spaced apart position . Therefore , in order to be able to arrange the battery 60 between the first and second support portions 17 and 18 of the flexible support 10 , it is necessary to win the aforementioned magnetic force of attraction exerted by the or each magnet 45a and / or 45b .

[0102] In particular, at least one of the first and second support portions 17 and 18 is configured to be inclined, advantageously along a weakening line 2 , with respect to a main portion 19 of the flexible support 10 . In this way, it is possible to introduce the battery 60 between the first and second end pads 33 and 34 in order to obtain the first or the second lighting configuration depending on the position of the polarity 61 and 62 of battery 60 . In an embodiment according to the invention, both the first and second support portions 17 and 18 can be inclined with respect to the main portion 19 of the flexible support 10 .

[0103] In this case , a first and a second magnet 45a and 45b are advantageously provided positioned, respectively, at opposite sides 15a and 15b of the flexible support 10 with respect to the first and second end pads 33 and 34 and arranged to exert a magnetic force of attraction which opposes the first and second support portions 17 and 18 of the flexible support 10 to move from the close position to the aforementioned spaced apart position . Therefore , in order that the battery 60 can be positioned between the first and second support portions 17 and 18 of the flexible support 10 , it is necessary to win the aforementioned magnetic force of attraction exerted by the magnets 45a and 45b .

[0104] In an embodiment of the invention, diagrammatically shown in the figures 18 to 23 , the flexible support 10 can comprise a first part 11 having a first face 13 provided with the aforementioned first track 31 comprising said first end pad, and a first portion 32a of the second track 32 comprising a first plurality of secondary pads 74 , for example six secondary pads 74 . The flexible support 10 furthermore comprises a second part 12 having a respective first face 14 provided with a second portion 32b of the second track 32 comprising a second plurality of secondary pads 75 , in addition to the aforementioned second end pad 34 . The first and second parts 11 and 12 are superimposed, in use , one on the other in such a way to arrange the respective first faces 13 and 14 in contact with each other . In this way, each secondary pad 74 of the first plurality is arranged in contact with a respective secondary pad 75 of the second plurality thus forming this way the second track 32 of the printed circuit board 30 . Therefore , the first plurality of secondary pads 74 and the second plurality of secondary pads 75 are equal in number and are , advantageously, positioned respectively on the respective face 13 , 14 , respectively of the first and second parts 11 and 12 , at corresponding positions such that once that the parts 11 and 12 are positioned one above the other, the secondary pads 74 and 75 of the first and second pluralities are superimposed one on the other .

[0105] In an embodiment of the invention, the first and second parts 11 and 12 of the flexible support 10 can be adhesively bonded one above the other at the respective first faces 13 and 14 . For example , a first adhesive surface of a double sided tape can be applied on one of the first faces 13 , or 14 , an, then, the other adhesive surface of the double sided tape can be used to bond the first face 14 , or 13 , of the other part 11 or 12 of the flexible support 10 , in such a way to obtain a " sandwich" structure .

[0106] In particular, the double-sided tape is not applied at the first and second support portions 17 and 18 , in such a way that they can move from the close position to the spaced apart position and vice versa .

[0107] In particular, the aforementioned secondary pads 74 of the first plurality can be made of a tin-based metallic alloy, or another conducting material which melts at a temperature less than 350 ° C . Furthermore , advantageously, the secondary pads 75 of the second plurality can be made of a di f ferent material conducting electricity, for example gold .

[0108] Preferably, the first and the at least a second LED- chip 21 and 22 can be positioned at a first end portion 10a of the flexible support 10 . In this way, as diagrammatically shown in figure 24 , the portion of the flexible support 10 which can be arranged between the pages 101 of book 100 , the si ze of which in figure 24 i s diagrammatical ly shown, that has been read by the user , is the largest portion of the flexible support 10 same making more stable the bookmark 1 during reading .

[0109] More in particular , the first and second main pads 33 and 34 can be positioned at a second end portion 10b opposite to the first end portion 10a of the flexible support 10 .

[0110] The technical solution according to the present invention allows , in particular to avoid to equip the bookmark of switch for turning on and of f the light and, therefore , to simpli fy the circuit construction and to reduce the total thickness of the bookmark with respect to solutions adopted in the prior art .

[0111] Furthermore , the technical solution of the present invention allows to obtain at least two di f ferent types of lighting conditions allowing to adapt the lighting of the page to the lighting conditions of the surrounding environment and, therefore , to make the reading for the reader easier in any condition .

[0112] As diagrammatically shown in the figures from 25 to 32 , in an embodiment of the invention, a case 50 is provided configured to house , in use , the battery 60 . In particular, the case 50 comprises a main body 55 , for example substantially disc-shaped, provided with a first aperture 51 at a first side and with a second aperture 52 at a second side opposite to the first side . More precisely, at the first aperture 51 , in use , the positive pole 61 of the battery 60 is arranged, whilst at the second aperture 52 , in use , the negative pole 62 o f the battery 60 same is arranged . In this way, the positive and negative poles 61 and 62 can be arranged in contact with the first and second end pads 33 and 34 , respectively, when it is desired to obtain the first lighting configuration and, therefore , to turn on the first LED-chip 21 , or, instead, respectively with the second and first end pads 34 and 33 , when it is desired to obtain the second lighting configuration and, therefore , to turn on the second LED-chip 22 .

[0113] In an embodiment of the invention, the case 50 comprises a first part 50a ( figure 25 ) and a second part 50b ( figure 26 ) . More precisely, the first and second parts 50a and 50b of case 50 are configured to move from a disassembled configuration ( figure 27 ) , where the battery 60 can be arranged between them, for example laying it on the second part 50b, and an assembled configuration, where the first and second parts 50a and 50b mutually engage with each other, in such a way to block the battery 60 between them ( figure 28 ) .

[0114] As diagrammatically shown in the figures from 25 to 28 , the first part 50a and the second part 50b of the case 50 can be provided with respective engagement elements 53 and 54 , preferably with a plurality of respective engagement elements . For example , the first part 50a can be provided with 3 engagement elements 53a-53c, for example 3 portions 53a-53c arranged at 120 ° and extending inward from a peripheral edge 56 , and the second part 50b can be provided with respective 3 engagement elements 54a-54c, also these preferably arranged at 120 ° , for example 3 teeth proj ecting outward from an edge 58 , each of which adapted to engage , in the assembled configuration, with one of the 3 engagement elements 53a-53c of the first part 50a . More precisely, in the embodiment of figures 27 and 28 , once that the battery 60 has been laid on one of the two parts of the case , for example on the second part 50b, the first and second parts 50a and 50b are one superimposed on the other with the battery 60 interposed between them, and, then, the engagement elements 54a-54c are engaged to the engagement elements 54a-54c by rotating them with respect to each other about an axis 150 bringing each engagement element 54a-54c below a respective engagement element 53a-53c so blocking the battery 60 which, therefore , remains in position .

[0115] According to an aspect of the invention diagrammatically shown in the figures from 29 to 32 , once the case 50 provided with the battery 60 is positioned between the first and second support positions 17 and 18 , which, analogously to what described above with reference to figures 1 to 15 , can move between a close position and a spaced apart position, the magnets 45a and 45b provide to hold the battery 60 and, therefore , also the case 50 where it is housed, in the correct working position of figure 31 , that means in the first or in the second lighting configuration, where a pole 61 , or 62 , of the battery 60 , is arranged in contact with the first end pad 33 , and the other pole 62 , or 61 , with the second end pad 34 in order to obtain the first or the second lighting configuration . Furthermore , as diagrammatically shown in figure 32 , in an embodiment of the invention, the double sided tape , and, therefore , the corresponding adhesive portion 16 defined by the same , is arranged between the first and second parts 11 and 12 of the f lexible support 10 , in such a way not to extend to the first and second support portions 17 and 18 . In this way, the first and second support portions 17 and 18 can move between the spaced apart position of figure 30 and the close position of figure 31 . In an embodiment of the invention, the adhesive portion 16 extends , advantageously, between the first end portion 10a of the flexible support 10 and line 2 . More precisely, the position of the weakening line 2 can be such that , in addition to allow the aforementioned movement of the first and second support portions 17 and 18 between the spaced apart position of figure 30 and the close position of figure 31 , it allows also to displace case 50 with the battery 60 inside , from the operating position of figures 31 and 34 , to a position more internal to the flexible support 10 , that means a position more distant from edge 10" of the end portion 10b through which is introduced between the first and second parts 11 and 12 , up to reach the position of figures 32 and 36 , where the main body 55 of case 50 and not the battery 60 , is arranged in contact , at one side with the first end pad 33 , and at the other side with the second end pad 34 ( see the enlargement of figure 37 ) .

[0116] In an embodiment of the invention, the main body 55 of case 50 in made of a non-conducting material , for example a plastic material . Therefore , when the case 50 is arranged in the position of figures 32 , 36 and 37 , the LED-chips 21 and 22 are turned of f , because the circuit is opened and, therefore , another power-of f configuration is obtained . Also in this pos ition, the case 50 , the or each magnet 45a and 45b are able to exert a magnetic force of attraction on the battery 60 such to hold the case 50 between the first and second support portions 17 and 18 .

[0117] As shown in particular in figure 29 , the first and second support portions 17 and 18 can be provided with respective lowered portions 37 and 38 , in such a way to simpli fy to positioning of case 55 with the battery 60 between them . In particular, the si ze of each lowered portion 37 and 38 can be substantially equal to or greater than the si ze of the battery 60 that is used .

[0118] A further advantage of the solution according to the present invention for case 50 is that the aforementioned peripheral edge 56 defines a peripheral groove which has a determined depth . In this way, di fferent types of batteries can be used, for example , di fferent coin batteries , in particular having di f ferent diameters , without the need of changing the case 50 . Therefore , also this embodiment of the bookmark is highly versatile and capable of adapting to di f ferent design solutions , in particular to the various types of LED-chips 21 and 22 which can be employed .

[0119] In figure 38 still another alternative embodiment of the bookmark with LED lighting 1 , according to the invention, is shown . More in particular, as shown in detail in figure 39 , in this case , the first and second LED-chips 21 and 22 are arranged side-by-side to each other and not one superimposed on the other as , instead, shown in the embodiments described above with reference to the figures 1 to 32 . As a skilled person in the art will have no di f ficult to understand, all the embodiments described above with reference to the case in which the first and second LED-chips 21 and 22 are one superimposed on the other can be modi fied to be employed also in the case that the first and second LED-chips 21 and 22 are arrange side-by-side , that means along a direction orthogonal to the longitudinal axis of bookmark 1 .

[0120] Still as a skilled person in the art will have no di f ficult to understand, are also deemed to be covered by the present invention all the embodiments of the bookmark with LED lighting 1 as described above deriving from any combination of the aforementioned embodiments and which provide a first and a second LED-chips 21 and 22 with the aforementioned features , in particular regardless of how they are arranged on the flexible support 10 .

[0121] The embodiments of the bookmark with LED lighting 1 described above with reference to the figures from 29 to 39 are diagrammatically shown in a working condition in figure 40 . In particular, figure 40 allows to appreciate the property of the bookmark with LED lighting 1 , according to the invention, to be extremely thin due to the technical solutions employed .

[0122] The foregoing description of a specific embodiment will so fully reveal the invention according to the conceptual point of view, so that others , by applying current knowledge, will be able to modify and / or adapt for various applications such an embodiment without further research and without parting from the invention, and it is therefore to be understood that such adaptations and modifications will have to be considered as equivalent to the specific embodiment . The means and the materials to realise the different functions described herein could have a different nature without, for this reason, departing from the field of the invention . It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation .

Claims

CLAIMS1. Bookmark with LED lighting (1) comprising a flexible support (10) provided with:- a first LED-chip (21) and at least a second LED-chip (22) ;- a printed circuit board (30) arranged to electrically connect said first and second LED-chips (21,22) to a battery (60) , said printed circuit board (30) comprising:- a first track (31) made of a conducting material comprising a first end pad (33) ;- a second track (32) in said conducting material and comprising a second end pad (34) , wherein, in use, one of said first and second end pads (33,34) is arranged in contact with the positive pole (61) of said battery (60) and the other is arranged in contact with the negative pole (62) of said battery (60) ; said bookmark with LED lighting (1) being characterized in that said first LED-chip (21) is provided with a positive pole (23) connected to said first track (31) and with a negative pole (24) connected to said second track (32) and said second LED-chip (22) is provided with a positive pole (25) connected to said second track (32) and with a negative pole (26) connected to said first track (31) in such a way to selectively and alternatively obtain a first lighting configuration where said first LED-chip (21) is turned on and said second LED-chip (22) is turned off, when said first end pad (33) is in contact with said positive pole (61) of said battery (60) and said second end pad (34) is incontact with said negative pole (62) of said battery (60) , or a second lighting configuration, where, instead, said second LED-chip (22) is turned on and said first LED-chip (21) is turned off, when said second end pad (34) is in contact with said positive pole (61) of said battery (60) and said first end pad (33) is in contact with said negative pole (62) of said battery (60) .

2. Bookmark (1) according to claim 1, wherein a first and a second magnet (45a, 45b) are, furthermore, provided positioned at opposite sides of said flexible support (10) with respect to said first and second end pads (33,34) , said magnets (45a, 45b) being arranged to hold said battery (60) in at least a first predetermined position with respect to said flexible support (10) both in said first lighting configuration and in said second lighting configuration, and in at least a respective second predetermined position with respect to said flexible support (10) in a power-off configuration, where said battery (60) is not arranged in contact with said first or second end pad (33,34) whereby said first LED- chip (21) and said second LED-chip (22) are turned off.

3. Bookmark (1) , according to claim 1, or 2, wherein said flexible support (10) comprises:- a first part (11) having a first face (13) provided with :- said first track (31) comprising said first end pad ( 33 ) ; and- a first portion (32a) of said second track (32) , said first portion (32a) comprising a first plurality of secondary pads (74) ;a second part (12) having a respective first face(14) provided with:- a second portion (32b) of said second track (32) , said second portion (32b) comprising a second plurality of secondary pads (75) and said second end pad ( 34 ) ; and wherein said first and second parts (11,12) are positioned, in use, one above the other in such a way to arrange said respective first faces (13,14) in contact with each other, to position each secondary pad (74) of said first plurality in contact with a respective secondary pad (75) of said second plurality thus forming this way said second track (32) of said printed circuit board (30) .

4. Bookmark (1) , according to one or more of the previous claims, wherein said first and second end pads (33,34) are positioned, respectively, at a fist and a second support portion (17,18) of said flexible support (10) configured to be moved away and towards each other, in such a way to move from a spaced apart position to allow said battery (60) to be arranged between said first and second end pads (33,34) and a close position where said positive pole (61) of said battery (60) is arranged in contact with one of said first and second end pads (33,34) and said negative pole (62) is arranged in contact with the other one of said first and second end pads (33,34) .

5. Bookmark (1) , according to claim 4, wherein at least one of said first and second support portions (17,18) is configured to be inclined along a weakening line (2) with respect to a main portion (19) of said flexible support (10) .

6. Bookmark (1) , according to any claim from 3 to 5, wherein said first and second parts (11,12) are mutually adhesively bonded one above the other at said respective first faces (13,14) .

7. Bookmark (1) , according to any claim from 3 to 6, wherein said secondary pads (74) of said first plurality are made of a tin-based metallic alloy and said secondary pads (75) of said second plurality are made of a different conducting material.

8. Bookmark (1) , according to one or more of the previous claims, wherein said first LED-chip (21) is arranged to emit a warm light, that means having a temperature between 3000K and 3550K, and said second LED-chip (22) is arranged to emit a cool light, that means a light with a temperature higher than 4000K.

9. Bookmark (1) , according to one or more of the claims from 4 to 8, wherein said first magnet (45a) is positioned at said first support portion (17) at the opposite side of said first end pad (33) and said second magnet (45b) is positioned at said second support portion (18) at the opposite side of said second end pad (34) , wherein said first and second magnets (45a, 45b) are arranged to exert a magnetic force of attraction on said first and second support portions (17,18) arranged to oppose said movement of said first and second support portions (17,18) from said close position to said spaced apart position, and to guarantee that said positive pole (61) and said negative pole (62) of said battery (60) are respectively arranged in contact with said positive pole of said first LED-chip(21) and with said negative pole of said second LED- chip (22) in said first lighting configuration, or with said negative pole of said first LED-chip (21) and with said positive pole of said second LED-chip (22) in said second lighting configuration.

10. Bookmark (1) , according to one or more of the previous claims, wherein said first and second LED-chips (21,22) are configured to emit respectively a light at a first predetermined temperature T1 and a light at a second predetermined temperature T2 with T1^T2.

11. Bookmark (1) , according to claim 10, wherein said first predetermined temperature T1 belongs to a first predetermined range of temperatures ATI corresponding to a light selected among: warm light, neutral light and cool light, and said second predetermined temperature T2 belongs to a second predetermined range of temperatures AT2 corresponding to a light selected among: warm light, neutral light and cool light, with AT1^AT2.

12. Bookmark (1) , according to one or more of the previous claims, wherein a case (50) is, furthermore, provided configured to house said battery (60) , said case (50) comprising a main body (55) provided with a first aperture (51) at a first side where, in use, said positive pole (61) is arranged, and with a second aperture (52) at a second side opposite to the first, where, instead, in use, said negative pole (62) of said battery (60) is arranged, in such a way to allow said positive pole (61) and said negative pole (62) to move in contact, respectively, with said first end pad (33)and with said second end pad (34) , in said first lighting configuration, and with said second end pad (34) and with said first end pad (33) in said second lighting configuration.

13. Bookmark (1) , according to claim 12, wherein said case (50) comprises a first part (50a) and a second part (50b) configured to move from a disassembled configuration where said battery (60) can be arranged between said first part (50a) and said second part (50b) , and an assembled configuration, where said first and second parts (50a, 50b) are arranged to mutually engage with each other, in such a way to block said battery ( 60 ) .

14. Bookmark (1) , according to claim 13, wherein said first and second parts (50a, 50b) of said case (50) are provided with respective engagement elements (53,54) configured to move from a disengagement configuration to an engagement configuration.

15. Bookmark (1) , according to claim 12, or 13, wherein said main body (55) of said case (50) is made of a nonconducting material .

16. Bookmark (1) , according to any claim from 3 to 15, wherein said first and second parts (11,12) of said flexible support (10) are mutually glued to each other at an adhesive portion (16) .

17. Bookmark (1) , according to claim 16, wherein said adhesive portion (16) does not extend to said first and second support portions (17,18) .

18. Bookmark (1) , according to claim 15 and 17, wherein said adhesive portion is configured in such a way to allowto move said case (50) together with said battery (60) from said first, or second, lighting configuration, to said power-off configuration, where said main body (55) is arranged in contact with said first and second end pads (33,34) .

19. Method for manufacturing a bookmark (1) characterized in that it comprises the steps of:- providing a flexible support (10) provided with a first LED-chip (21) , at least a second LED-chip (22) , and a printed circuit board (30) configured to connect said first and second LED-chip (21,22) to a battery (60) , said flexible support (10) comprising:- a first part (11) having a first face (13) provided with a first track (31) made of a conducting material comprising a first end pad (33) and a first portion (32a) of a second track (32) made of said conducting material and comprising a first plurality of secondary pads (74) made of a tin-based metallic alloy;- a second part (12) having a respective first face (14) provided with a second portion (32b) of said second track (32) made of said conducting material and comprising a second end pad (34) and a second plurality of secondary pads (75) made of a conducting material, said first and second end pads (33,34) being arranged, in use, in contact with a positive pole (61) and a negative pole (62) of said battery (60) for electrically supplying said first or said second LED-chip (21,22) ;— positioning said first and second parts (11,12) one above the other in such a way to arrange said respectivefirst faces (13,14) in contact with each other, to arrange each secondary pad (74) of said first plurality in contact with a respective secondary pad (75) of said second plurality in such a way to form said second track (32) of said printed circuit board (30) ;- heating said first and second parts (11,12) arranged one above the other by a heating device up to a predetermined temperature T higher than the melting temperature of said tin-based metallic alloy in such a way to firmly anchor said secondary pads (74) of said first plurality to the respective secondary pads (75) of said second plurality.

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