JPS6228461Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pipe slide marking pen.

The marking pen for fine print has a thin rod-like pen body and is low in rigidity, so it is inserted into the guide pipe with the tip slightly protruding. There is a drawback that when the pen body wears out a little, the tip of the pen gets stuck inside the guide pipe, making it impossible to write. For this reason, proposals have been made to, for example, rotate the tip to retract the guide pipe and re-extend the pen body, but all of these have complicated structures and are troublesome to operate. It was hot.

Therefore, the present invention consists of a barrel housing an ink storage body inside, a tip fitted to the tip of the barrel, and a guide pipe that protrudes from the opening at the tip of the tip. To easily slide a guide pipe with a simple structure when the pen body of a marking pen consisting of a thin rod-shaped pen body inserted into an ink storage body is worn out. In order to achieve this purpose, the guide pipe is loosely inserted into the tip opening of the tip, a notch is provided on the side of the guide pipe to expose the pen body, and an elastic body is placed in the notch. It is characterized in that the guide pipe is loosely attached to the pen body by winding it in a stretched state, thereby making the guide pipe slidable.

Embodiments of the present invention will be specifically described below with reference to the drawings.

The ink storage body 6 is housed in the barrel 1, and this is a rod-shaped body whose outer periphery is made of ultra-fine fibers such as polyester fibers and hardened so that the entire density is uniform, and the ink storage capacity is It's a big one. A tip 2 is fitted to the tip of the shaft cylinder 1, and a guide pipe 3 protrudes from the tip opening of the tip 2. A thin rod-shaped pen body 4 made of plastic is fixed by adhesive or welding to a pen body fixing body 5 fitted into the barrel 1, and is also fitted into the guide pipe 3 so that its tip is slightly bent. The ink storage member 6 is inserted into the ink storage body 6 so that ink is transmitted to the writing part.

Here, the guide pipe 3 is slidably inserted into the tip opening of the tip 2 and the inner hole of the pen body fixing body 5, so that it can be retreated by a predetermined distance. As shown in FIG. 2, a notch 3a is provided on the side of the guide pipe 3 to face each other, and the pen body 3 inserted therein is exposed therefrom. An elastic body 7 such as rubber is wound around the part including the notch 3a in a stretched state as shown in FIG.
The guide pipe 3 is loosely attached to the pen body 4 by the elastic body 7 that has entered the portion a and presses the pen body 4. Guide pipe 3 via this elastic body 7
The contact resistance force between the pen body 4 and the guide pipe 3 is 30
It is adjusted so that the guide pipe 3 slides when a force of ~50 g is applied.

As the pipe slide marking pen configured as described above is used, the pen body 4 slightly protruding from the tip of the guide pipe 3 will wear out and become close to the same level as the rim of the tip of the guide pipe 3. At this time, if the inclination of the barrel 1 with respect to the plane of the paper is slightly increased when writing, the edge of the tip of the guide pipe 3 will touch the plane of the paper. Since the writing pressure is usually 50 g or more, the guide pipe 3 slides back and the tip of the pen body 2 reappears, allowing you to continue writing.

In this way, the present invention provides a notch on the side of the guide pipe, exposes the pen body inserted into the notch, wraps an elastic body around that part and attaches it loosely, and the guide pipe is moved by pen pressure. Since it is made to slide, it is possible to extend the usable period of the fine point marking pen with a simple structure and low rigidity of the pen body.In addition, the pipe slide does not require any special operation to slide the guide pipe. Marking pens can be provided.

[Brief explanation of the drawing]

FIG. 1 is an enlarged vertical sectional view of the main part of an embodiment of the present invention, FIG. 2 is a perspective view of the guide pipe, and FIG. 3 is a cross-sectional view of the main part. DESCRIPTION OF SYMBOLS 1... Barrel, 2... Tip, 3... Guide pipe, 3a... Notch, 4... Pen body, 5... Pen body fixing body, 6... Ink storage body, 7... Elastic body .

Claims (1)

[Scope of utility model registration request] A barrel housing an ink storage body inside, a tip fitted to the tip of the barrel, and a guide pipe that protrudes from the opening at the tip of the tip, and the rear end is inserted into the ink storage body. In a marking pen consisting of a thin rod-shaped pen body, the guide pipe is loosely inserted into the tip opening of the tip, a notch is provided on the side of the guide pipe to expose the pen body, and the pen body is exposed in the notch. A pipe slide marking pen in which the guide pipe is loosely attached to the pen body by winding an elastic body in a stretched state, so that the guide pipe can be slid.