KR930001300Y1 - Cap for writing instruments - Google Patents

Abstract

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Description

Writing instrument cap

The present invention relates to a writing instrument cap having at least one air channel penetrating the front surface, in particular a ballpoint pen cap, for example, to a writing instrument cap that can be used for other writing instruments such as drawing instruments and coloring instruments.

Such a cap is disclosed in EP-OS 204 252 (A1).

However, since the cap disclosed in the European publication is formed of a plurality of parts inserted in the axial direction and moving relatively to each other, it is manufactured expensive and complicated.

In addition, if such a cap is separated from writing instruments, drawing implements or coloring instruments, a reliable and continuous air circulation is not guaranteed. In particular, the air channel of the front wall can be closed by the inner seal moving in the axial direction.

An object of the present invention is to provide a cap for writing instruments that can be manufactured in a simple and inexpensive manner, while being able to reliably prevent damage to the writing instrument head, when not combined with the writing instrument.

This object is, according to the present invention, disposed only in the region of the front face where the air channel is closed, and the impact wall is formed as a disc and a ring-shaped end as part of the front wall, and the cap wall, the front wall and the impact wall are integrally formed with respect to each other. It is achieved by a cap for writing instruments which is connected to be fixed.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a partial cross-sectional view of the first embodiment of the present invention shown along the line A-A of FIG.

2 is a side view of the writing instrument cap shown in FIG.

3 is a plan view of the writing instrument cap shown in FIGS. 1 and 2;

4 is a cross-sectional view of a second embodiment of the present invention shown along the line B-B of FIG.

5 is a side view of the writing instrument cap shown in FIG.

FIG. 6 is a plan view of the writing instrument cap shown in FIGS. 4 and 5;

7 is a cross-sectional view of a third embodiment of the present invention, in which a seal is incorporated.

The cap 1 according to the first embodiment of the present invention shown in FIGS. 1 to 3 is integrally formed as a whole and has a shim 10. As best shown in FIGS. 2 and 3, the closed front face 2 is formed with two second axial portions 4 ′ of the air channel 4 passing through the front wall 3. . The impact wall 5 which supports the impact from the inside is formed by the disk 5 'supported by the connecting table 6.

The air channel 4 has a radial opening 4 from the first axial portion 4 '. ) And through the axial portion 4 "of the second axis to the interior 7 of the cap 1. A ring-shaped end formed as part of the front wall 3 to act as a transverse impact wall 5 5 ") reliably protects the writing head 11 (including the ball 12) from damage by foreign matter that diverts air flow and penetrates into the cap 1 in the axial direction. For example, the ring-shaped end 5 " prevents lint or the like of clothing from penetrating into the cap and attaching to the writing head 11 or the ball 12 to contaminate the writing head or the ball.

Although the shaft 14 and the cap 1 of the writing instrument are firmly coupled by the shape-fitting or frictional coupling by the ring-shaped block 15 formed on the cap wall 8, the shaft 14 and the cap 1 are configured to be released in the axial direction. The first axial portion 4 ′ of the air channel 4 and the ring-shaped end 5 ″ used as the impact wall 5 have substantially the same cross section and the second axial portion 4 of the air channel 4. The original plate 5 'used as ") and the impact wall 5 is also formed to have the same cross section. This is for the purpose of easily separating the cap, usually produced by injection molding of thermoplastics, from the mold in its manufacture in the axial direction. In order to fix the disc 5 'used as the impact wall 5, the disc 5' is radially, in some cases axially, through the connecting rod 6 through the front wall 3 and the cap wall 8 or It is connected to either of these.

The cap 1 ′ according to the second embodiment of the present invention shown in FIG. 4 in FIG. 6 has a first axial portion 4 ′ of the air channel 4 arranged coaxially with respect to the interior 7. It is comprised so that the front wall 3 of this front surface 2 may penetrate. Radial opening 4 from first axial portion 4 ' ) And the second axial portion 4 "in turn form an air channel 4. The cap 1 'with shims 10 is a shaft 14 of a writing instrument provided with a ball 12). The disk 5 'acting as the impact wall 5 is used to axially protect the writing head 11, and the first axial portion 4 of the air channel 4 is configured to be fitted thereon. It has substantially the same cross section as ') The binary plate 5' can be rigidly connected to or integrally formed with the cap wall 8 and the front wall 3 or any one thereof via the connecting rod 6. The number of connecting rods 6 can be arbitrarily selected, for example, two, three or four connecting rods are preferred.

The cap 1 ″ according to the third embodiment of the present invention shown in FIG. 7 is basically the same in configuration as the cap 1 ′ shown in FIGS. 4 to 6, but has a writing with a tip 13. Further, a sealing body 9 is used for drawing or coloring apparatus, which causes the cap 1 " to be closed, i.e., the cap 1 " is pushed onto the shaft 14. In the form of fitting with (15), the vent hole of the writing instrument in the region of the tip 13 and the writing instrument head 11 "is hermetically closed.

However, when the cab (1 ") is open or the cab is open, the outside air must And (4 ") into the interior 7.

The seal 9 is formed in the form of a port and is integrally formed with the impact wall 5 and the connecting table 6 or the disc 5 'supported by any one of them. However, other types of seals may be selected. For example, a cellular rubber pillow or silicon layer may be used as the seal 9.

In particular, in the third embodiment shown in Fig. 7, additional advantages are obtained in addition to the constructional action intended in the present invention. In other words, while the cap is airtight, the compression force does not work or only a small compression force acts when the cap is inserted into or removed from writing instruments, drawing instruments, or coloring apparatuses, thus making it easier to insert and remove the cap to such writing instruments. Has the advantage.

The cap according to the present invention, in particular, contributes to the safety of children and the elderly because it is possible to circulate in the axial direction through the cap from the inside and from the outside when it is not inserted into writing instruments, drawing instruments or coloring instruments. This reduces the risk of choking when swallowed.

In this respect, the diameters of the respective portions 4 ', 4 " (4' ") of the air channel 4 are at least 5-15 mm < 2 > To 10 mm 2.

In the third embodiment, the secure engagement of the shaft 14 with the cap 1 ″ is provided by the ring-shaped groove 16 of the shaft 14 and the ring-shaped block portion 15 of the cap 1 ′.

The original plate 5 'is a part capable of displaying a safe product mark, a company mark or other marks, in addition to the protection of the writing heads 11 and 11'. That is, if such marking is made on the original plate 5 ', it will not be damaged unless the marking is erased well.

Claims (5)

Has at least one air channel 4 penetrating the front face 2, the air panel 4 is arranged in an axial and radial direction, and the first axial portion 4 'of the air channel Restricted by at least one impact wall 5 formed transverse to the longitudinal axis, the air channel is internally through at least one radial opening 4 '' 'from the first axial portion 4'. (7) and a writing instrument cap (1,1 ', 1 ") connected to the first axial portion (1') and the second axial portion (4") provided eccentrically, the air channel (1). 4) is placed only in the closed front (2) region of the cap (1, 1 ', 1 "), the impact wall (5) being formed as part of the front wall (3) and the disk (5') and ring-shaped ends ( 5 "), wherein the cap wall (8), the front wall (3) and the impact wall (5) are integrally formed and fixed to each other. 2. The disc 5 'and ring-shaped ends 5 "axially restrict the first and second axial portions 4, and 4" of the air channel 4, respectively. Cap for writing instruments, characterized in that it has a cross section of the same size as the cross sections of said second and second axial portions (4 'and 4'). The writing instrument cap according to claim 1 or 2, wherein the disc (5 ') is connected to the front wall (3) and the cap wall (8) via a connecting table (6). The writing instrument cap according to claim 1, wherein a sealing member (9) is formed in said disc (5 '). The writing instrument cap according to claim 1, characterized in that the air channel (4) has a cross section of 5 to 15 mm 2.