JPS623264Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, this type of reheal was a type in which the insertion part provided at the connecting end of the writing lead holder was simply press-fitted into the tip of the pipe, so it was not possible to reheat over time or due to temperature differences. This may cause the connecting portion to come loose or the writing lead holder to come off, and also to cause air leakage when the cap is loaded into and taken out of the removable writing device.

The purpose of the present invention is to eliminate the above-mentioned defects by press-fitting the tip of the pipe and the insertion part of the writing lead holder and fitting the concave groove and the string-like protrusion. A marking pen in which a synthetic resin writing lead holder is connected to the tip of a stainless steel or other metal pipe with a built-in ink-absorbing batting,
When reheating a writing instrument such as a ballpoint pen, an insertion part with an outer diameter that is the same as or slightly larger than the inner diameter of the tip of the pipe is attached to the connecting end of the writing lead holder, and a concave groove is formed around each circumference of this insertion part. Further, the tip of the pipe is press-fitted into the insertion portion for connection, and the portion of the tip of the pipe corresponding to the groove is formed into a string-like protrusion that fits into the groove. This is a summary.

The illustrated embodiment comprises a stainless steel pipe 2 containing an ink-absorbing batting 1 and a writing lead holder 3 made of hard synthetic resin, and the writing lead holder 3 is provided with a pipe 2 at its connecting end. The insert portion 5 has an outer diameter slightly larger than the inner diameter of the tip portion 4.
Further, a flange 7 for abutting the tip of the pipe 2 is provided at the base end of the insertion portion 5, and an annular groove 8 is provided on the outer periphery of the insertion portion 5 near the base end.
The writing lead holder 3 is attached to the tip of the pipe 2 by press-fitting the insertion portion 5 to the tip of the pipe 2 until the tip edge of the pipe 2 abuts the abutting flange 7. A string-like protrusion is provided by beading to connect air-tightly and fit into the groove 8 at a location corresponding to the groove 8 in the tip 4 of the pipe 2, and the writing lead holder 3 The pen tip 11 was press-fitted into the pen hole 10 of the pen, and the inner end of the pen tip 11 was pierced into the tip of the batting 1, and the required amount of ink was absorbed into the batting 1, and the tail plug 12 was fitted to the tail end of the pipe 2. It is something.

In the figure, 14 indicates an air hole, and 15 indicates a cap.

As mentioned above, the present invention is useful for recharging marking pens, ballpoint pens, etc. in which a synthetic resin writing lead holder is connected to the tip of a stainless steel or other metal pipe with a built-in ink-absorbing batting. At the connecting end of the core holder, there is an insertion part with an outer diameter that is the same as or slightly larger than the inside diameter of the tip of the pipe, and a groove is provided on the outer periphery of this insertion part. The parts are connected by press-fitting, and the part corresponding to the groove at the tip of the pipe is a string-like protrusion that fits into the groove, so the insertion point provided at the connecting end of the writing lead holder The writing lead holder does not come out of the pipe due to the double slip-out structure of the part being press-fitted into the tip of the pipe, and the string-like protrusion at the tip of the pipe fitting into the groove provided on the outer periphery of the insertion part. Alternatively, it is possible to reliably prevent loosening of the fitting, thereby having the effect of reliably achieving the above object.

[Brief explanation of the drawing]

The figure shows an embodiment of the reheating of writing instruments such as marking pens and ballpoint pens according to the present invention.
The figure is a perspective view showing the whole, and FIG. 2 is an enlarged sectional view of the main part along the line AA in FIG. 1. 1... Filling, 2... Pipe, 3... Writing lead holder, 4... Tip, 5... Insertion part, 6... Unevenness 6, 7... Flange, 8... Concave groove, 9 ... String-like projection, 10 ... Pen hole, 11 ... Pen tip, 12 ...
...Tail plug, 14...Air hole, 15...Cap.

Claims (1)

[Scope of utility model registration request] When reheating writing instruments such as marking pens and ballpoint pens in which a synthetic resin writing lead holder is connected to the tip of a stainless steel or other metal pipe with a built-in ink-absorbing batting, the connecting end of the writing lead holder is An insertion part with an outer diameter that is the same as or slightly larger than the inner diameter of the tip of the pipe, a groove is provided on the outer periphery of this insertion part, and the tip of the pipe is press-fitted into the insertion part. Rehealing of writing instruments such as marking pens, ballpoint pens, etc., which are connected and are formed as string-like protrusions that fit into the grooves at the corresponding parts of the tips of the pipes.