JPH0143614Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application This invention relates to the structure of a recording pen portion for recording electrical signals on recording paper, such as in an underwater detection recorder.

(b) Prior Art When a recording stylus is used as a recording means, a long stylus is prepared in advance to prevent abrasion of the pen tip, so that it can be pulled out using radio pliers or the like.

Furthermore, in recent years, when recording electrical signals, a multi-needle recorder is often used in addition to a single-needle recorder from the viewpoint of signal amount per hour or recording efficiency.

(c) Problems that the invention aims to solve However, if we take into consideration the turbulence on board,
It is difficult to pinch the pen tip and pull it out by an appropriate length, and there is a risk of damaging the pen tip.

Further, a multi-needle type in which a plurality of needles are arranged close to each other is not suitable for the above-mentioned drawing operation in which fine adjustment is difficult because it is necessary to make the drawing length of each needle uniform.

(d) Means for solving the problem This device has a needle wound around a roller, and when necessary, the roller is rotated in the opposite direction to let out the needle, making it easy to make fine adjustments. This paper proposes a structure for the recording pen part.

(e) Embodiment Figure 1 is an exploded view of the structure of the recording pen part showing an embodiment of this invention, in which 1 is a pen support stand, and 2 and 3 are two types of structures formed on the upper part of the pen support stand 1. It is a substantially semicircular groove having a diameter. As will be described later, the groove 3 has a larger diameter than the groove 2 for winding up the recording stylus.

As can be seen from the sectional view of the main part in FIG. 2, the pen support stand 1 has a hole 4 formed in the center, and a fan-shaped space with a certain curvature or slope is formed at the upper end side and is connected to the groove 3. It is designed to increase In addition, a slight bend 6 is formed in the hole 4,
The movement of the recording needle, which will be described later, is restricted to ensure stable recording. The hole 4 can be formed at the same time by molding the pen support 1 with a metal pipe or the like placed in advance in a plastic mold.

In FIG. 1, reference numeral 7 denotes a recording needle that passes through the hole 4, passes through the fan-shaped space 5, and is fed into a hole 9 of a roller 8, which will be described later. A taper 10 is formed on one side of the hole 9 of the roller 8, as shown in FIG. 2, for the purpose of facilitating the insertion of the recording needle 7. Further, the roller 8 is slidably rotated by contacting the surface of the groove 2 having a smaller diameter, and can be easily rotated with a screwdriver or the like by means of a groove 11 on the side surface, for example. This does not need to be a groove, and depending on its shape, it may be one that can be easily rotated by hand, for example, one that has a rotation-assisting structure such as a protrusion.

Reference numeral 12 corresponds to the upper cover of the roller 8, and an approximately semicircular groove equal to the grooves 2 and 3 is formed on its inner surface. 13 is made of elastic resin or the like;
This is a coupling member that wraps around the pen support base 1 and the top lid 12 to achieve coupling between the two using elasticity. As a result of the combination, the grooves 2 and 3 become circular again.

In the above structure, the recording needle 7 is attached to the taper 10 of the hole 9 through the fan-shaped space from the lower end of the hole 4.
(it can be easily seen by the mark 14 etc. that the taper 10 is facing downward) into the hole 9.

When feeding is completed, the roller 8 is rotated using the groove 11 to wind up the recording needle 7 into the groove 3. The recording needle 7 extends from the lower end of the hole 4 by an appropriate length, and in this state is used as a recording pen section.

When the roller 8 is worn out, by rotating the roller 8 in the opposite direction, that is, returning it to its original position, a portion of the wound portion (each having the same length) is unwound from each hole 4. At this time, the recording stylus 7 is prevented from bending due to the existence of the fan-shaped space 5, and the rigidity of the recording stylus 7 itself allows the recording stylus 7 to smoothly pierce the hole 4.
It will be pushed out to the side.

Note that a description of how to attach the pen support stand 1 to the recorder (not shown) is omitted since it is not an essential part.

Also, although it is not a very important matter, 15 is an elastic metal piece that comes into contact with the internal recording needle 7 through the hole 16, so that the electric wire 17
The electrical signal is guided to the recording needle 7 through the .

Finally, although this embodiment has been described with a plurality of grooves 3, that is, two grooves, it goes without saying that basically one groove 3 is sufficient.

(f) Effects of the invention As explained above, according to this invention, unlike the conventional work of pulling out the needle with needle-nose pliers, the work can be done by feeding out and rotating the roller 8. can be done quickly and hole 4
This is extremely suitable for practical use, as it makes it easy to finely adjust the length of the feed. Particularly in the case of a recording pen used in an underwater detection recorder, the work efficiency can be significantly improved if rocking on a ship is taken into consideration.

In addition, a multi-needle type recording pen unit in which a plurality of recording needles are disposed close to each other is extremely suitable for practical use, as work can be done quickly and the length of the needle drawn out from each hole 4 can be made uniform.

[Brief explanation of the drawing]

Figure 1 is an exploded view showing one embodiment of this invention.
FIG. 2 is a side sectional view of the main part. 1... Pen support stand, 2, 3, 11... Groove, 4,
9... Hole, 5... Fan-shaped space, 6... Bent part, 7...
... Recording needle, 8 ... Roller, 10 ... Taper, 1
2...Top lid, 13...Connecting member.

Claims (1)

[Claims for Utility Model Registration] (1) A substantially semicircular groove 2 is formed in a part of the groove, and a groove 3 with a large diameter is formed by a part of the groove.
A pen support 1 is provided with a hole 4 formed through a fan-shaped space 5 from the center to the back, and a pen support 1 is slid and rotated in the groove 2 and has a hole 9 formed at a position facing the center of the fan-shaped space and rotated on the side. A cylindrical roller 8 having a support structure; a top cover 12 having grooves with the same diameter as the grooves 2 and 3 formed on the inner surface and forming a circular shape by combining with the grooves 2 and 3; and a pen support stand and the top cover. A recording pen part structure consisting of a connecting member. (2) The recording pen part structure according to claim 1, which is a utility model registration, characterized in that a plurality of grooves 3 of the pen support base 1 and a plurality of grooves of the upper cover 12 which are coupled to the grooves 3 are formed.