JPS62297198A - Manufacture of ink tank in re-heel for felt pen, ball pen, propelling pen, etc. - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Detailed Description of the Invention [Industrial Field of Application] The present invention is directed to the novel manufacture of a stainless steel ink tank for use in refills for felt pens, pole pens, mechanical pencils, etc., which are usually called barrels. It is about the method.

[Prior Art] and [Problems to be Solved by the Invention] Hitherto, there has been no method for manufacturing a stainless steel heel ink tank as in the present invention. However, the manufacturing method for stainless steel heel ink tanks is: ■ The process is simple, ■ It is suitable for mass production, ■ It can be carried out with simple instructions, and ■ It does not require advanced technology. , ■Low cost, ■No fear of causing chemical or electrostatic reactions with the ink, resulting in discoloration of the ink), ■Water resistance, oil resistance, etc. There is a strong demand for a material that satisfies the following requirements: (1) It should be able to withstand semi-permanent use;

[Means for solving problems]

The present invention involves rounding a stainless steel strip in the longitudinal direction, gradually rolling the strip from an arc shape to a circular shape, and then abutting both edges of the strip and welding the abutted edges to each other. A pipe of the required diameter is formed, and the tip of the pipe is drawn with a spatula to form an inward flange shape to reduce the diameter of the tip.A core metal is inserted into the tip, and the tip of the pipe is stamped with a press to make the diameter smaller. The tank body is formed by drawing and forming into a cylindrical shape, and then the core metal is extracted, and the tip member is formed from a large diameter part and a small diameter part by a processing method such as press working or molding separately from this. An ink for refilling felt pens, pole pens, mechanical pencils, etc., characterized in that the large diameter part of the tip member is fitted onto the outside of the small diameter cylindrical diaphragm in an airtight manner and cannot be removed. Providing a tank manufacturing method
) This solves the table problem as mentioned above.

[Example] Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, a stainless steel strip (1) is rounded in the longitudinal direction to change it from an arc shape to a circular shape. Gradually roll it up and abut the both edges of the strip-shaped thin plate (1). (2) (2)' are welded with argon to each other to continuously form the required long pipe (3), and the tip (4) of the long pipe (3) is drawn with a spatula to form an inward arrangement. By reducing the diameter of the tip (4) and inserting a K core metal into the tip (4), the tip part (A) of the long pipe (3) is stamped with a K press to make the same part (A) thinner. The long pipe (3) is formed into a cylindrical shape, and then the core metal (not shown) is removed and the long pipe (3) is formed.
The tank body (5) is cut into pieces to a predetermined length.
, and a tip member (7
), and then fit the large diameter part (6) of the member (7) over the above-mentioned small diameter cylindrical diaphragm part (5) in an airtight manner so that it cannot be removed, thereby obtaining an ink tank (9LJ). This is how it was done.

As shown in FIGS. 2 and 3, the ink tank according to the present invention is used by first inserting a crimped thermoplastic synthetic resin fiber bundle (8) in the tank body (5) at a density that efficiently causes capillary action. An ink absorbing member made of K thermoplastic soft synthetic resin is coated with a vibrator (9) (from the tail end), and the tail end of the tank body (5) is closed with a tail plug συ, and the tip member is closed. (7) The narrow diameter part (G)' is fel [1's nib α2
(at its tip), and pierce the upper end of this pen tip α2 into the above-mentioned occlusion body α1, and attach a cap (13) to the tip of the ink tank, and attach this cap αJ to the tip member (7). It is detachably attached to the thick diameter portion (6), and also constitutes the heel for a mechanical pencil or mechanical pencil of the present invention, and the heel for a mechanical pencil or mechanical pencil of the present invention. Or, it may have a built-in mechanism for mechanical pencils and tear off pole pens, mechanical pencils, etc.

[Function] and [Effects of the Invention] The present invention involves rounding a stainless steel strip thin plate in the longitudinal direction and gradually rolling the strip thin plate from an arc shape to a circular shape, thereby abutting both side edges of the strip thin plate. The edges on both sides are welded to each other to form a pipe of the required diameter, and the tip of the pipe is made into an inward flange shape by spatula drawing to reduce the diameter of the tip. A core metal is inserted into the tip to form the tip of the pipe. The tank body is formed by drawing out the core metal into a small-diameter cylindrical shape by stamping with a press, and separately forming a large-diameter cylinder by pressing, molding, or other processing methods. The large diameter portion of the tip member is non-removably and airtightly fitted onto the outside of the small diameter cylindrical constriction portion. It goes without saying that ink tanks for felt pens, pole pens, sharp pens, etc., which have the shape of Since the manufactured ink tank is made of stainless steel, there is no risk of chemical reactions with the ink or electrostatic reactions causing the ink to discolor or harden, making it ideal for felt pens, etc. In addition, stainless steel has excellent water resistance, oil resistance, etc., and can withstand semi-permanent use).Furthermore, stainless steel has excellent rigidity and the wall thickness of the ink tank can be made extremely thin, so the outer diameter of the ink tank can be made smaller and the inner diameter larger. In other words, it is suitable for use in felt pens, pole pens, etc., which can hold a large amount of ink despite their small outer diameter.

[Brief explanation of the drawing]

B. This shows an example of the method for manufacturing ink tanks for use with the present Q felt pen, pole pen, mechanical pencil, etc., where Figure 1 is an explanatory diagram of the entire manufacturing process, and Figure 2 shows an example of use. The perspective view and FIG. 3 are cross-sectional views taken along line A-A in FIG. 2. (1)...Strip-shaped thin plate, (2) (2)'...Both side edges, (3)...Long pipe, (4)...Tip, (5
)...tank body, (5)'... strangle absorber, ■
...Tail plug, 1 piece...Nib, f13)...Cap, (A)...Tip part.

Claims (1)

[Claims] By rounding a stainless steel strip in the longitudinal direction and gradually rolling the strip from an arc shape to a circle, the edges of the strip are brought together and the abutted edges are welded to each other as required. After forming a pipe of the same diameter, the tip of the pipe is made into an inward flange shape by a spatula drawing process, and the diameter of the same tip is reduced.A core metal is inserted into the tip, and the tip of the pipe is stamped with a press to form a small diameter cylindrical shape. The tank body is formed by drawing and then extracting the core metal, and separately formed from a large diameter part and a small diameter part by a processing method such as press working or molding. A refill for felt pens, pole pens, mechanical pencils, etc., which comprises a tip member, and is characterized in that the large diameter part of the tip member is fitted onto the outside of the small diameter cylindrical constriction part in an airtight manner and not removable. How to manufacture an ink tank.