DE6804861U - WRITING DEVICE WITH BUILT-IN LIGHTING - Google Patents

Description

Heinz iv ο it ζ e 1
engineer

7 Stuttgart-Feuerbach
Weilimdorfer Strasse 203

Writing instrument with built-in lighting

The invention relates to a writing instrument with built-in lighting, which can be used by the user like known writing instruments, z. B. ballpoint pen, fountain pen, pencil, felt pen, etc. is to be handled.

All of these known writing implements can only be used if there is sufficient room or writing area lighting.

In rooms, e.g. B. in darkrooms, in medical or scientific laboratories, at lectures, etc., in where the room or the writing desk for work flow reasons is not illuminated, no data or notes can be recorded in writing.

The known writing implements can therefore not be used according to their purpose in the dark.

The object of the invention is to eliminate these existing disadvantages.

According to the invention, a writing instrument with built-in lighting is used suggested in which after closing the

electrical circuit, a light beam emerges directly above the writing point, which is used for local lighting serves as the writing point. The proposed writing instrument therefore consists of a power source, e.g. the battery, a lightbulb, the switch contacts and the pen insert - all from a surrounding housing enclosed in an elongated arrangement.

Since, as stated above, the light beam exit should take place directly above the writing point, it is special advantageous embodiment of the invention between the light source and light beam exit nor the arrangement a light guide tube provided.

According to a further idea of the invention it is provided that Activate the lighting by attaching the protective cap to the end opposite the pen tip. This clearly ensures that the lighting is only switched on when the protective cap is attached. is If the protective cap is not attached, the writing instrument is like all known ones with sufficient external lighting to use other writing implements.

In the drawing, an embodiment according to the invention is shown schematically.

The drawing shows in Fig. 1 the writing instrument in longitudinal section. In Fig. 2 the front part of the device is with Protective cap shown in longitudinal section. In Fig. 3, the protective flap is on the opposite of the pen tip The end is attached and the circuit is closed. Representation also in longitudinal section.

To Fig. 1:

The writing instrument consists of the sleeve-shaped parts 1, 2, which are held together by the intermediate piece 3.

ι ^ _t

For this purpose, the merged ends of the sleeves 1, 2 are provided with an internal thread 4, 4 '. The intermediate piece 3 is also provided on the outside with a thread matching 4, 4 '.

In the sleeve-shaped part 1, the battery 5, which is inwardly supported on a Federeleraent 6, inserted. the The light bulb 7 is held in the intermediate piece 3 in a known manner.

The sleeve-shaped part 2 consists of an outer opaque supporting tube 8 and an inner light-conducting tube 9, for. ß. made of transparent plastic.

The light guide tube 9 is designed in such a way that it receives the pen insert 10.

The end faces 11, 11 'of the light guide tube 9 are designed to be plane-parallel, so that the light beam of the light bulb can enter at 11 and exit at 11 *.

To Fig. 3:

From the intermediate ^{piece 3 and the r} ederelement 6, electrically conductive connections 13, 14 with the contact points 15, 16 in the sleeve-shaped part 1 are embedded.

After putting the protective cap 17 on the sleeve-shaped Part 1, the contacts 15, 16 are bridged by the metallic ring 18 on the cap, and so the circuit closed for lighting.

The invention is not limited to the exemplary embodiment explained in more detail. By choosing other elements, z. B. a tubular battery and a tubular lightbulb can be completely or partially on the Lichtieitrohr be waived.

Protection claims;

Claims (5)

Protection claims 1. Writing implement with built-in lighting, characterized in that the light beam exit occurs directly above the writing point (H ¹ ) » 2. Writing implement according to claim 1, characterized in that that the lighting, from the built-in, commercially available parts battery (5) and light bulb (7) and a light guide tube (9). 3. Writing implement according to claim 1, characterized in that with the protective cap (17) by attaching it this v / ground the contacts (16, 16) on the end opposite the pen tip, and so on the lighting is switched on. 4. Writing implement according to claim 1, characterized in that that all known types of writers, such as. B. pencil, j Ballpoint pens, fountain pens, India ink pens, felt schreiber et al. can be used. 5. Writing implement according to claim 1, characterized _f that by installing other elements, for. B. a tubular battery and a tubular lightbulb on the light guide tube (9) completely or partially warped J can be. 4861