JP2001191683A - Cap attaching and detaching aid of capped writing utensil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a 'cap attaching and detaching aid', with which the attachment and detachment of the cap of the capped writing utensil can be easily performed with a single hand, no lost of the cap develops, no unusable dry pen point of the volatile writing utensil occurs and which can install to various cap type writing utensils. SOLUTION: This cap attaching and detaching aid has following mechanisms, in which a cap opening and closing shaft 1 is fixed to a cap installing part 2. The cap opening and closing shaft 1 having an engaging projection 7 provided at its rear end part is slidably and loosely inserted in a slider tube 3, which is connected through a rotatable connecting part 4 with a pen shaft installing part 5. The pen shaft installing part is equipped with a cap holding part 6, while the slider tube 3 is equipped with a corresponding cap holding part 6'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument having a cap and to simplify the holding and detaching of the cap. It is a cap attachment / detachment aid that holds the cap and simplifies attachment / detachment.

[0002]

2. Description of the Related Art As a method of solving the trouble of attaching and detaching a cap, there is a capless writing instrument. However, marking pens, water-based ball pens, correction pens, etc.
Most writing instruments that use volatile ink are still of the cap type because the writing tip must be airtight. As a method of solving the trouble of attaching and detaching the cap of the volatile writing instrument, the following has been devised.
a, a capless writing instrument in which an airtight cylinder is built in at the tip of the writing instrument to keep the writing tip airtight, and when using a pen, the tip of the writing instrument is opened and closed by sliding the writing shaft portion, and at the same time the writing tip is exposed. b, There is a type in which the cap is slid with the head of the brush shaft and turned down to expose the brush tip.

[0003]

Heretofore, cap-type writing instruments, especially volatile writing instruments having no cap holding portion, often cannot be used if the cap is lost. In addition, both hands had to be used to attach and detach the cap, and when one hand was blocked by other tools or luggage, the cap had to be opened and closed by mouth. One of the methods for solving such a problem is a capless writing instrument as described in the above item a. However, compared to the short life of the volatile writing instrument, the cost is higher due to its complicated structure. . In the above-mentioned item b, the brush tip is difficult to see because the cap is held on the brush tip. Currently, there is a wide variety of cap-type writing instruments on the market. There has been a demand for a method of using a product that a user wants to use as simple as a capless writing instrument.

[0004]

SUMMARY OF THE INVENTION The present invention is a "cap attaching / detaching aid" in which a mechanism for simplifying attachment / detachment of a cap is made independent of a writing instrument main body. It can be mounted on any cap-type writing implement, and the mounting method is completely independent of the writing implement (claim 1), compatible with the writing implement (claim 2), and integrated with the writing implement (claim 3). , So that it can respond to various needs.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A cap is opened and closed by sliding a cap or a cap opening / closing shaft 1 up and down. When using the brush, the cap is rotated to the rear of the brush and fixed by the holding portion. After use, rotate the cap to the tip of the brush and close it with your finger or press the cap against another object to close it.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS a. A long window 8 is provided in a slider cylinder and a cap attaching / detaching projection 9 is provided on a cap opening / closing shaft so that the long window can be moved back and forth. Cap can be attached and detached. b, a cap attaching / detaching projection 9 is provided on the cap attaching portion so that the cap can be attached / detached with only a finger. c, The form of the cap holding portion 6 that keeps the cap stopped at the rear portion of the brush when the brush is used uses a general uneven fitting or a magnet. Using a magnet of moderate magnetic force, you can hold the cap to the back of the brush simply by raising and lowering the cap while keeping the hand grip in writing. d. The cap mounting portion and the brush shaft mounting portion are appropriately selected from a pinching type using a resilient material, a binding type using a band, and the like, so that the cap and the brush shaft can be firmly fixed. e, The cap mounting portion and the brush shaft mounting portion are formed in a shape corresponding to the mounting portion of the writing implement according to claim 2, and compact and reliable mounting is realized. f, As described in claim 3, a writing instrument having a cap opening / closing shaft and a cap, and a brush shaft mounting portion and a brush shaft are respectively joined, and a "cap attaching / detaching auxiliary tool" is mounted as an integral part.

[0007]

From the user's point of view, when using a cap-type writing instrument, if the cap-attaching aid is used, the cap can be opened and closed with one hand operation and the cap in use with the writing instrument can be used. Can be retained. There is no need to lose the cap as before, and there is no need to work with the cap in the mouth. In the case of claims 1 and 2, if there is only one cap attaching / detaching aid, any number of various types of writing instruments can be used, which is economical. From a manufacturer's point of view, this "cap-removing and assisting device" can be manufactured at low cost because its mechanism is simple. "Claim 1"
In addition to the completely independent type, the mechanism of the "cap attachment / detachment aid" itself is independent of the writing implement, whether it is the corresponding type of "claim 2" or the integrated type of "claim 3."
This is very economical because the above-described writing implement can be manufactured only by adding the manufacturing process of the cap attaching / detaching auxiliary tool while maintaining the manufacturing process of the writing implement so far.

[Brief description of the drawings]

FIG. 1 is a front view of the present invention. This shows a state where the writing instrument is attached when the cap is closed.

FIG. 2 is a front view of the present invention. Fig. 4 shows a state in which the cap of the writing implement is removed and the cap is held at the rear of the writing implement. Enlarged view.

FIG. 3 is a side view showing Example a.

FIG. 4 is a side view showing Example b.

FIG. 5 is a front view showing Example e.

FIG. 6 is a front view showing Example f. (Note that the dotted lines in FIGS. 1 to 4 indicate writing implements to be attached.)

[Description of Signs] 1 Cap opening / closing shaft 2 Cap mounting portion 3 Slider-cylinder 4 Connecting portion 5 Brush shaft mounting portion 6 Cap holding portion 6 'Cap holding portion (slider-cylinder side) 7 Locking projection 8 Long window 9 Cap detachable Projection 10 Writing implement 11 Mounting part of "Cap attaching / detaching aid" attached to writing implement

Claims (3)

[Claims] A cap opening / closing shaft is fixed to a cap mounting portion. The cap opening / closing shaft 1 has a locking projection 7 at the rear end.
And is slidably inserted into the slider-cylinder 3. The slider-cylinder 3 is connected to a brush shaft mounting portion 5 by a rotatable connecting portion 4. The brush shaft mounting part 5 is a cap holding part 6
The slider-cylinder 3 has a cap holder 6 'corresponding thereto. A cap attachment / detachment aid having the above mechanism. 2. A writing instrument having a mounting portion corresponding to the mounting portion of the cap attaching / detaching auxiliary tool having the mechanism according to claim 1. 3. A writing implement equipped with the cap attaching / detaching aid having the mechanism of claim 1 as an integral part.