JP2542080Y2 - Caps for writing instruments - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to an improvement in a cap such as a felt-tip pen and a marker which is fitted to a writing tip in order to prevent evaporation of ink.

(Prior Art) Conventional caps used for felt-tip pens, markers, etc. are formed of a resin molded product or the like having excellent characteristics of suppressing ink evaporation, and are written on an inner hole of the cap or an inner cap portion provided in the inner hole. It is mounted with the tip part closely fitted.

(Problems to be Solved by the Invention) The caps used for conventional felt-tip pens, markers, etc., are closed in the inner hole except for the insertion side. However, accidents such as the infant accidentally swallowing the cap and choking in the bronchi may suffocate. It is an object of the present invention to allow a baby to accidentally swallow a cap in a hanging situation, to allow air to pass even if the child is stuck in the bronchi, and to avoid a crisis such as suffocation.

(Means for Solving the Problems) The cap such as a writing instrument of the present invention devised to achieve the above object is formed by forming a cylindrical inner cap with a rear end closed in an inner hole thereof. An air flow passage communicating with the vent hole at the rear end of the cap is provided between the outer periphery of the inner cap and the inner peripheral wall of the cap, and a plurality of air passages are provided between the outer periphery of the inner cap and the inner peripheral wall of the cap in front of the inlet of the inner cap. The ribs are connected by the ribs at the points, and a space between the ribs at the front position of the inlet of the inner cap is formed in a horizontal hole, the horizontal hole communicates with the air flow passage, and the front and rear ends of the cap are configured to flow air. Have been.

In addition, the present invention makes it possible to fit the insertion port of the cap facing the rear end of the inner cap or the rear end of the cap as a development to a writing body having a writing tip such as a felt-tip pen, a marker at both ends of the shaft. That is the provision.

(Embodiment) As shown in FIG. 1, both ends of a cursive writing (1) are provided with a first writing tip (12) and a second writing tip (13) such as a felt-tip pen and a marker, respectively. A first cap (2) and a second cap (3) are fitted. First
A cylindrical inner cap (4) having a closed rear end is formed in the inner hole (8) of the cap (2), and the rear end (10) appropriately protrudes from the rear end of the cap. The outer periphery of 4) and the inner peripheral wall of the cap are connected by a plurality of ribs, and the inner hole (8) of the cap (2) and the ventilation hole (6) at the rear end of the cap are passed between the ribs. Air circulation. On the other hand, an inner hole (9) of the second cap (3) is also formed with a cylindrical inner cap (5) having a closed rear end, and a rear end (11) of the cap is formed. A ventilation hole (7) is provided at a required location of the inner cap (5).
Is communicated with a gap between the outer periphery of the first member and the second member. An insertion opening (9a) for the second cap (3) is detachable from a rear end (10) of the first cap (2), and a rear end of the second cap (3). The insertion opening (8a) of the first cap (2) is detachable from (11).

FIG. 2 shows an embodiment of the cap structure of the present invention. The rib (25) has an annular flange portion (25a) formed on the side of the cap insertion opening. Caps (2
A tubular inner cap (21) having a closed rear end is formed in the inner hole (23) of (0), and a rear end (26) is formed appropriately protruding from the rear end of the cap to form a cap (20). A vent hole (22) formed between the inner peripheral wall of the cap (20) and the outer periphery of the inner cap (21) is provided at the rear end of the inner cap (21). A plurality of ribs (25) are connected to the inner peripheral wall of the cap to form a horizontal hole between the rib at the entrance front position of the inner cap (21) and a front end of the rib (25). An annular flange (25a) is formed on the side of the insertion opening (23a) of the cap (20), and the ventilation hole (22) at the rear end of the cap through the horizontal hole (24) from the insertion opening of the cap (20) An air flow passage communicating with the air passage is provided.

Incidentally, in the structure for air circulation of the first cap (2) and the second cap (3), at least one of the caps has a structure shown in FIG.

(Operation) The configuration of the present invention is as described above. As shown in FIG. 1, when the cap is fitted on the front portion of the writing body (1), the writing tip is sealed by the inner cap to prevent evaporation of the ink.

In a state where the cap is removed, the air flows since the inner hole is communicated from the insertion port and the vent hole is communicated from the rear end. When the first writing tip (12) is used, the first cap (2) is fitted to the rear end (11) of the second cap (3). When using the second writing tip, the second cap (3) is fitted to the rear end (10) of the first cap (2). Further, even when the first cap and the second cap are separated from the writing body in a state of being joined, it is possible to communicate with one insertion port so that air flows from the other insertion port to the other ventilation hole.

(Effects of the invention) The configuration and operation of the invention are as described above. Even if an infant accidentally swallows the cap and clogs the bronchus, the inner hole communicates with the ventilation hole at the rear end from the insertion hole of the cap. As a result, air is circulated and a crisis such as suffocation can be avoided.

In addition, with the above configuration, there is no inferior appearance at all.

[Brief description of the drawings]

FIG. 1 is a perspective half-sectional view of a writing instrument such as a felt-tip pen and a marker according to an embodiment of the present invention. FIG. 2 is a half sectional view showing one embodiment of a cap such as a writing instrument of the present invention. FIG. 3 is a half sectional view of a conventional example. (1)… cursive, (2)… first cap, (3)
... second cap, (4) (5) ... inner cap, (6) (7) ... vent, (8) (9) ... inner hole,
(8a) (9a) ... insertion slot, (10) (11) ... rear end,
(12) First writing tip, (13) Second writing tip, (14) Clip (20) Cap, (21) Inner cap,
(22) ... vent hole, (23) ... inner hole, (23a) ... insertion hole, (24) ... lateral hole, (25) ... rib, (25a) ... annular flange (26) ) Rear end, (27) Clip, (30) Cursive, (31) First cap,
(32) ... second cap, (33) (34) ... inner hole

Claims (1)

(57) [Scope of request for utility model registration] 1. A writing body having writing tips such as a felt-tip pen and a marker at both ends of a shaft, wherein each of the caps fitted to the writing tip to prevent evaporation of ink. A cylindrical inner cap whose rear end is closed is formed in the hole, and a rear end portion of the inner cap or a cap insertion opening facing the rear end portion of the cap is provided so as to be fittable, and the cap is provided at the rear end of the cap. A ventilation hole formed between the inner peripheral wall and the outer periphery of the inner cap is provided, and the inner peripheral wall of the inner cap is connected to the outer periphery of the inner cap with a plurality of ribs by hanging in front of the entrance of the inner cap. A horizontal hole is formed between the ribs at the front position of the inlet of the cap, and an air flow passage communicating with the ventilation hole at the rear end of the cap through the horizontal hole from the insertion port of the cap is provided. Cap such that the writing instrument.