RU1799330C - Ball-point pen - Google Patents

Abstract

SUMMARY OF THE INVENTION: the handle comprises a threaded body, a cap-latch with an end hole for the tip of the writing rod; a sleeve with a main thread corresponding to the thread of the housing, and a cap. The housing has an external thread and an internal channel in the bow. The sleeve contains a rim, a holder, an additional external thread corresponding to the main, cylindrical part and the inner channel. The rim of the sleeve is made with a hole for the outer diameter of the cap-retainer. The cap has an internal thread corresponding to the thread in the bow of the body and the threads of the sleeves. 2 s, par., 5 ill.

Description

The invention relates to writing instruments and can be used in the construction of ballpoint pens with fixedly mounted rods. - ./; -:.: ..; -:. , ./;

A ballpoint pen is known that is capable of using two types of rods (short and long) and comprising a housing, a screw-on and a cylindrical inner sleeve.

An object of the invention is to improve the usability of a pen.

For this, the handle body has an external thread in the nose and an internal channel with a diameter of 2.6-3.6 mm and a length of up to 25 mm. The sleeve contains a rim, a holder, an additional external thread corresponding to the main, cylindrical part and the inner channel, and the rim has a hole for the outer diameter of the cap-retainer. The handle cap contains an internal thread corresponding to the thread of the lower part of the body. The holder can be either stationary mounted on the rim of the sleeve or made in the form of an elastic plate movably mounted in the slit of the protrusion of the rim.

In FIG. 1 shows a pen with a short, thin shaft; Fig. 2 - with a long rod (in both cases, the cap covers the spouts of the rods); Fig. 3 - with a BIC type rod; Fig. 4 - with a rod of increased capacity (in both cases, the cap is screwed onto the sleeve); figure 5 is a view of the sleeve with a movable version of the holder (figure 1 - stationary holder).

.The handle consists of a housing 1, weights 2, a retainer cap 3 and a cap 4.

The housing 1 contains in the front part a hole for the diameter of the cylindrical part of the nose of the rod 5 type BIC (4 mm) and an external thread, and in the rear part an internal thread. In the middle part, the inner diameter of the housing 1 is not less than the largest diameter of the rod 6 of increased capacity (5 mm), and in the front part it contains a channel with a diameter of 2.6-3.6 mm and a length of up to 25 mm.

The outer diameter of the cap-retainer 3 corresponds to the diameter of the nose hole of the housing 1, and the inner diameter

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spout rod 6. The sleeve 2 contains a rim, the main and additional external thread, a cylindrical part with a diameter of not more than the inner diameter of the housing 1, and an inner channel with a diameter of at least 2.6 mm A holder is attached to the rim of the sleeve 2 (for carrying the handle in a pocket), which can be made both in the stationary (Fig. 1-4) and in the movable (Fig. 5) versions. In the first embodiment, it has a symmetrical shape 7, and in the second, it is made in the form of an elastic plate 8 movably mounted in the slit of the protrusion of the rim of the sleeve 2. The rim of the sleeve 2 also contains an opening for the outer diameter of the cap-retainer 3. The cap 4 has an internal thread corresponding to the external thread of the housing 1 and the sleeve 2.

The handle operates as follows. When a short thin rod 9 is inserted, a cap-retainer 3 is put on its nose, after which they are both inserted into the housing 1, and the cap-retainer 3 is installed in the hole of the pen body 1. Then, the rod 9 is pressed by the sleeve 2, screwed into the housing 1 by the cylindrical part (Fig. 1).

When setting a thin long rod 10, the same actions are performed, only the sleeve 2 is screwed into the housing 1 with the cylindrical part outward, and the rear part of the rod 10 is located in the inner channel of the sleeve 2 (Fig. 2).

When setting the rod 6, the same actions are performed, the sleeve 2 in the same position as with the rod 9 (Fig. 4).

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When setting the rod 5, the cap-retainer 3 is placed in the hole of the rim of the sleeve 2, and the rod 5 is inserted from the outside of the case 1 (Fig. 3).

In the retractable version of the holder (Fig. 5), the plate 8 moves in the hole of the protrusion of the rim of the sleeve 2 depending on its position, but so that the plate 8 is located above the body 1.

FORMULA AND SECTION

Claims (3)

1. A ballpoint pen comprising a threaded body, a cap-lock with an end hole for the tip of the writing rod, a sleeve with a main thread corresponding to the thread of the body, and a cap, characterized in that, in order to increase ease of use, the body has a nose parts of the external thread and the inner channel with a diameter of 2.6-3.6 mm and a length of up to 25 mm, the sleeve contains a rim, a holder, an additional external thread corresponding to the main, cylindrical part and the inner channel, while the rim has a hole for the outer diameter cap-retainer and the cap is formed with an internal thread corresponding to the thread in the nose portion of the housing and the threads of the sleeves. 2. The handle according to claim 1, with the fact that the holder is fixed stationary on the rim of the sleeve and is made stationary. 3. The handle according to claim 1, characterized in that the rim of the sleeve is made with a protrusion having a slit, the holder is made in the form of an elastic plate, movably mounted in the Slot of the protrusion, Editor T. Kurkova FIG. S Compiled by A. Tarantsev Tehred M. Morgenthal Corrector 3. Salko