"CASE FOR CONTROL KEYBOARD"
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FIELD OF THE INVENTION
The present invention relates to an essentially rectangular case for a portable control keyboard and for the relative secondary circuits, such as, although not limited to, the box-shaped cases of remote control keyboards for TV, radio, HI-FI or the like, and to the so called "remote control protective covers", that is cases made of rubber or the like provided on the outside of a remote control to protect it from impacts, falls or the like. PRIOR ART
These keyboards are often intended for use in conditions with very dim lighting, generally desired by the user, who prefers, for example, to watch TV in the dark. Consequently, this makes it extremely difficult to use them, for example, to modify viewing conditions, volume or selectable programmes.
Keyboards or box-shaped cases for keyboards produced with fluorescent materials are known in the art. These keyboards or cases for keyboards have proved to be entirely inadequate to solve the aforesaid drawback.
ABSTRACT OF THE INVENTION
To overcome this drawback, the present invention relates to a case of the type defined in claim 1 and having the features defined in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS
The invention will also be described in greater detail hereunder, with reference to the attached drawings, provided purely by way of example, and wherein:
- Figure 1 is a schematic top view of a case according to
the invention, in the form of α remote control protective cover.
- Figure 2 is α side view of the same case.
- Figure 3 is an example of electrical control diagram. - Figure 4 is an alternative embodiment of the case according to the present invention, again in the form of a remote control protective cover.
- Figure 5 is a simplified axonometric view of the remote control protective cover in Figure 4. DETAILED DESCRIPTION OF SOME PREFERRED EMBODIMENTS OF THE PRESENT INVENTION
Figures 1-3 show a case in the form of a "remote control protective cover", but the description could be applied perfectly to the case of the remote control or of any portable keyboard. In the case shown, the cover 10 is formed of an essentially parallelepiped-shaped case, the upper side of which is open to allow access to the keyboard. Along the longitudinal sides thereof, in the upper area adjacent to the keyboard, one or more lighting points, capable of providing sufficient lighting for said keyboard, are provided.
For example, as can be seen in the figures, two lighting points 13, 14 and 15, 16 respectively, are provided on each of the longitudinal sides 1 1 and 12, suitably spaced apart to make the entire keyboard visible. The fact that the lighting points 13-16 are incorporated directly in the case 10 makes the invention extremely compact and easy to use.
Preferably, although not exclusively, the lighting points are arranged flush with the surface of the case inside which they are incorporated, in order not to form a possible obstruction to operation of the keyboard or be the cause of possible damage by and to the user.
The lighting points can be composed of 1.5 V, 12mA white light LEDs, but optionally also of other suitable components, such as low voltage incandescent bulbs, miniature halogen bulbs, etc.. These are supplied by a battery, for example 9V, which can be the same battery supplying the circuits of the keyboard, especially in the case of a case simultaneously forming the box of the keyboard. In the case shown of a remote control protective cover, it is instead easier to structure the case so that it houses, in a specific recess 17, a battery 18 specifically for the lighting. In an embodiment not shown of the present invention, the cover can include a single lighting point formed of one or more optical fibres which, arranged along the case, conduct the light flow generated by a suitable lighting source, not necessarily visible to the user, in order to light up the keyboard. Alternatively, the invention can also include a hybrid lighting system wherein one or more conventional lighting points (such as LEDs) arranged to light up the keyboard are alternated or placed adjacent to one or more optical fibres. The lighting points can be switched on using a switch 19 placed appropriately on one side of the case, in a position which is easy to operate even in the dark, for example while holding the case. The switch can be equipped with a spring, not shown, which returns it to the open condition of the circuit when it is released, or it can be a snap-action switch. In alternative embodiments of the present invention, mentioned herein purely by way of example, the switch 19 can be of the touch type, wherein simple contact with the fingertip of a user switches on the lighting points 13-16. The switch 19 integrated on the side of the case can engage the
entire side of the case 10, so that the case only has to be picked up and gripped slightly for the lighting points 13-16 to light up. According to another aspect of the invention, the lighting points 13-16 can be provided with a timer, also integrated in the cover 1 1 , suitable to determine automatic switch off of said lighting points 13-16 after a predetermined period of time.
According to another particular aspect of the present invention, the case can also include a further light source 20, with greater intensity than the intensity of the lighting points 13-16, applied to one of the transverse sides of the case, in particular the front side, to illuminate the upper part of the keyboard and also act as an electric torch. For example, the light source 20 can be a 6V 1 .2A bulb, such as a miniature halogen bulb inserted in a reflecting cone (or projector). It can be switched on from the same switch 19 and therefore simultaneously to the LEDs 13-16, or have an independent switch. In the same way, the light source 20 can be supplied by the same battery 18 (9V) or have a specific battery.
Figures 4 and 5 show an alternative embodiment of the present invention, wherein a plurality of lighting points 1 13, 1 14, 123, 124, 1 15, 1 16, 125, 126 are integrated in the side walls 1 1 1 and 1 12 of a remote control protective cover 1 10, for example made of rubber. Unlike the embodiment in Figures 1-3, further lighting points 135, 136 are incorporated in the front wall 122 of the cover 1 10, above the window 120, in correspondence of which the signal emitting device of a remote control to be placed in the same cover 1 10 is positioned. The lighting points 1 13, 1 14, 123, 124, 1 15, 1 16, 125, 126, 135, 136 can be of the type indicated above with reference to Figures 1-3, for example 1.5V, 12mA white light LEDs. The cover 1 10 also includes a recess 1 17 which , arranged in
correspondence of the rear wall of the cover 1 10, contains a lighting point 120, such as a 6V, 1.2A halogen bulb which can be positioned so that it also lights up the keyboard of the remote control, or can be positioned, suitably inserted in a specific projector, so that the light beam generated thereby passes through an opening 121 produced in said rear wall of the cover 1 10, such a way as to act as a torch. Should this be necessary, terminals of the circuit or circuits of said lighting points 1 13, 1 14, 123, 124, 1 15, 1 16, 125, 126, 135, 136 and 120, can be placed in the recess 1 17, to which a power supply battery, for example 9V, can be connected.
The cover 1 10 in Figures 3-4, in particular, can include two separate circuits, one for the lighting points 1 13, 1 14, 123, 124, 1 15, 1 16, 125, 126, 135, 136 directed towards the keyboard and one for the lighting point 120, preferably acting as a torch. In this case, the cover 1 10 can include two separate switches 1 19, 129, for example of the membrane or touch-sensitive type, for the purpose of respectively closing or opening the circuit of the lighting points 1 13, 1 14, 123, 124, 1 15, 1 16, 125, 126, 135, 136 and the circuit of the torch including the lighting point 120. Any modifications and improvements to the above description must be intended as falling within the scope of protection of the present invention.