SU1227509A1 - Writing instrument - Google Patents

Description

The invention relates to writing and can be used primarily for performing graphic work with a liquid dye.

The purpose of the invention is to improve the usability.

Fig. 1 shows a writing instrument, a cut; 2 is a section A-A in FIG. one .

The proposed writing tool consists of a tubular reservoir 1., an adapter sleeve 2 with valve 4 spring-loaded to the seat 3 in its central opening 5, a writing tip 6c with an end surface for contacting with the writing surface and a central channel 7 for passing the dye to the writing surface and rod 8, located in the central channel 7 of the writing tip 6 and screwed along the thread 9 into the valve 4 so that its free end is located under the end surface of the writing tip 6.

The connection of the transition sleeve 2 with the tubular tank 1 and with the writing tip 6 is sealed with gaskets 10 and 11, the rod 8 has fins 12, in the hole 5 transition

The bushings are fitted with a perforated plate 13 and it is provided that the total perforation area in the plate 13, as well as the cross-sectional area of the passage channel formed by the rod 8 at the location of the ribs 12 and the central channel 7, is greater than the maximum passage section of the saddle 3 of valve 4.

The use of the writing tool is that when changing the writing tip 6, it is screwed into the adapter sleeve 2 and the length of the rod 8 is adjusted, screwed or unscrewed the last of valve 4, and installing the newly written tip 6, the lines are drawn. In this case, elastically pressing the saddle 3, the valve 4 during the change of the writing tip 6 blocks the passage of the dye from the reservoir 1, and when drawing the line, the valve 4 rises above the saddle 3, since the rod 8, the free end interacts with the letter surface, moves up along the central channel 7 of the writing tip 6, and the dye flows from the tubular reservoir through the central channel 7 and the end surface to the surface of the letter.

us.2

Compiled by M. Kovalenko Editor L. Avramenko Tehred G. Gerber Proofreader I. Muska

Order 2254/20 Circulation 345 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (1)

TOOL OF THE DAY OF LETTER containing a tubular reservoir for the dye with a writing tip having an end surface for contacting the writing surface and a central channel for the passage of the dye from the tank to the writing surface, characterized in that, in order to improve ease of use, the writing tip is connected with a tubular the reservoir by means of a transition sleeve with a spring-loaded valve in its central hole, carrying a rod, adjustable in length, located in the central channel of the writing tip, free projectile loader end of which it is located under the end surface for contact with the writing surface of the writing tip. 609Z? Zl ^m Ti ^ ·· FIG. G