JPS626487Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a writing device used in, for example, a pen-writing recording type measuring device.

Conventionally, this type of device was
As shown in Publication No. 18971, a lead holding cylinder is integrally provided in a communicating manner with a storage body made of synthetic resin that stores a fibrous body containing ink, and a writing core is fitted into this lead holding cylinder. has been proposed.

However, since the storage body and the lead holding cylinder are integrally formed from synthetic resin, there are limits to the length and diameter of the lead holding cylinder, making it difficult to use multiple pieces in parallel. There is.

The present invention is an attempt to improve these points, and includes a storage body that stores the fibrous material containing ink, a lead holding cylinder that communicates with the storage main body, and a core holding cylinder that communicates with the storage body. The writing core is fitted with a writing core, and the lead holding tube is formed of a pair of cylindrical members that are separately molded along an inner hole into which the writing core is fitted and are joined to each other, and , is characterized in that the base end portion is coupled to the storage main body.

Hereinafter, the present invention will be described with reference to an embodiment shown in the drawings.

Reference numeral 1 denotes a storage body made of synthetic resin that is attached to a pen writing section of an earthquake measuring device, etc., and a communication hole 2 is bored in the center of the front end of the storage body 1, and an opening at the rear end of the storage body 1 is provided. A lid body 3 is attached to the portion. A fibrous body 4 impregnated with ink is housed inside the storage body 1.

Further, reference numeral 5 denotes a lead holding cylinder made of synthetic resin, and this lead holding cylinder 5 has a flat and elongated shape that becomes narrower toward the tip, and is bent or curved into a desired shape. Further, an inner hole 6 having a polygonal shape such as a quadrangular or hexagonal cross section is formed along the center portion of the lead holding cylinder 5. The core holding cylinder 5 has an inner hole 6
A pair of cylindrical members 5a are formed separately along the dividing surface, and a writing core 7 having a circular cross section is fitted into the inner hole 6 on the dividing surface, and the pair of cylindrical members 5a are adhesively joined to each other on the dividing surface. A gap 8 for air circulation is formed over the entire length between the corner of the inner hole 6 and the writing core 7, and a pen tip 9 is formed at the protrusion at the front end of the writing core 7. , lead-out part 1 at the rear end
0 is exposed.

The base of the lead holding tube 5 is connected to the communication hole 2 of the storage body 1, and the lead-out part 10 at the rear end of the writing core 7 is in contact with the fibrous body 4. In addition, when joining the lead holding tube 5 to the storage body 1, the pair of cylinder members 5a of the lead holding tube 5 are molded, the writing core body 7 is attached and glued, and then the lead holding tube 5 is stored. What is necessary is just to arrange|position it in the mold part of the main body 1, and to double-mold together with the storage main body 1.

Note that a cap 11 is attached to the tip of the core holding cylinder 5.
is attached removably.

When the cap 11 is attached to the lead holding cylinder 5, the storage body 1 and the lead holding cylinder 5 are sealed, and when the cap 11 is removed, the lead holding cylinder 5
The inside of the storage body 1 communicates with the outside air through the gap 8,
The ink contained in the fibrous body 4 is supplied through the gap 8.

According to the present invention, the core holding cylinder is formed by a pair of cylinder members that are molded separately along the inner hole and joined to each other, and this is connected to the storage main body, so that the storage main body and the core holding cylinder are made of synthetic resin. Compared to a product that is formed integrally with a cylinder, the length and shape can be freely selected, and the diameter and width can also be made smaller.Also, since it is a molded product, it can be made using a bent metal pipe. In contrast, since dimensional stability can be improved, a plurality of writing cores can be arranged in parallel, and the writing core can be easily attached and manufactured.

[Brief explanation of drawings]

Fig. 1 is a plan view showing one embodiment of the device of the present invention, Fig. 2 is a cross-sectional view of the part shown in Fig. 1, Fig. 3 is a sectional view of the part shown in Fig. 1, and Fig. 4 is a core holder thereof. FIG. 3 is an enlarged cross-sectional view of the cylindrical portion. DESCRIPTION OF SYMBOLS 1... Storage main body, 4... Fibrous body, 5... Lead holding tube, 5a... Cylinder member, 6... Inner hole, 7... Writing core body.

Claims (1)

[Scope of utility model registration request] A storage body that stores a fibrous material containing ink, a core holding cylinder that protrudes in communication with the storage body,
A writing core fitted into the lead holding cylinder, wherein the lead holding cylinder has a pair of parts that are molded separately along the inner hole into which the writing lead is fitted and are joined to each other. A writing device comprising a cylindrical member and connected to the storage main body at a base end.