JPH0999688A - Writing instrument with cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a cap to the writing instrument main body so as to not be lost, and write by removing the ca with one touch of fingers. SOLUTION: An arm 5 fixed on the cap 4 covering the writing part 3 of a writing instrument main body 2 is made capable of moving in and out of the inner part confined in the cylinder side of the writing instrument main body 2, and in the housing 7, the base end part of an arm is pivoted on the tip end of a push bar 8 with a compression spring 9 loaded in order that the push bar 8 is urged rearward of the housing 7 by means of the compression spring 9 and the tip end of one side of a crooked spring is set in a slit 5a formed on the arm 5. Then, the push bar 8 is advanced against the compression bar 9 in the direction of the writing instrument, and the advance of the arm 5 allows the cap 4 to be released from covering of the writing instrument 3, simultaneously, the arm 5 rotates about the base end part and becomes upright.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument with a cap such as a pen, a felt pen, a ball-point pen, etc., which has a reservoir for storing oily or aqueous inks in its shaft.

[0002]

2. Description of the Related Art Writing instruments such as pens, felt-tip pens, and ball pens having an oily or water-based ink storage unit in their shafts are usually covered with a cap separate from the writing instrument body in order to avoid ink evaporation. The tip of the pen is protected, and the pen is exposed when the pen is exposed.

[0003]

The cap is important for protecting the writing portion at the tip of the writing instrument body, but the cap separated from the writing instrument body is useless for writing and is rather an obstacle. It is no exaggeration to say that Therefore, the cap separated from the writing instrument body is often lost, and when lost, the ink inside the writing instrument body evaporates from the pen tip due to capillary action, etc., and the writing becomes impossible due to the drying of the pen tip. , The amount of ink stored also decreases rapidly, shortening the life as a writing instrument, and virtually endless disposal.

[0004] In addition, for the attachment and detachment of the cap, it is inevitable to use both hands such that the writing instrument main body is held by one hand and the cap is attached and detached by the other hand, but this is a great annoyance, especially for civil engineering. -When using a writing instrument outdoors such as at a construction site, it is often difficult to put on and take off such a cap. In view of the above-mentioned problems of the writing instrument, the present invention does not lose the cap by being combined with the writing instrument main body, and the writing instrument with a cap that enables the writing by removing the cap by one-touch operation. Is intended to be provided.

[0005]

That is, according to the invention of claim 1 of the present invention, an arm integrally provided on a cap which covers the writing portion at the tip of the writing instrument main body is provided on the cylinder side of the writing instrument main body. The housing is provided such that it can be inserted into and retracted from the front end of the provided housing, the base end of the arm is pivotally attached to the tip of the push bar in the housing, and the push bar is housed by a compression spring interposed on the outer periphery. It is urged along the rear side of the cylinder, and one side of the dogleg shape of the generally U-shaped spring is fixed to the housing, and the tip of the other edge of the dogleg shape is fixed by the setting member. The arm is moved forward by setting the push bar so that it can move along the long hole formed in the arm and advancing the push bar in the direction of the writing portion of the writing instrument body against the biasing force of the compression spring. Then the writing part of the cap The crown of the arm is released, and at the same time, the base end of the arm is pushed out toward the front end of the housing, so that the spring overcomes the biasing force of the compression spring and the tip is relatively moved along the long hole of the arm. When the arm moves, the arm pivots around the base end and stands upright, and the push bar moves rearward so that the arm falls along the main body of the writing instrument and the cap is capped on the writing part. A writing instrument with a cap characterized by being configured as described above.

According to a second aspect of the present invention, an O-ring is fitted to a part of the tapered outer periphery of the writing portion of the writing instrument main body to maintain airtightness when the cap is crowned. The writing instrument with a cap according to claim 1.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the writing instrument with a cap of the present invention, a cap provided with an arm, a housing provided on the cylinder side of the writing instrument main body, and a push bar for moving the arm in association with the arm. It is desirable that all the compression springs such as-and the like except the springs are made of plastic, so that the weight can be reduced and the manufacturing cost can be reduced.

[0008]

According to the writing instrument with a cap of the present invention, the arm of the cap having an arm for covering the writing portion of the writing instrument main body is linked to a push bar having a compression spring, and the push bar is moved forward. By doing so, one end of the generally-shaped spring provided in the housing is moved through the long hole provided in the arm to separate the cap from the writing portion and the arm is erected upright with respect to the writing instrument body. To enable writing,
The push bar retracts to return to the original crowned state, which can completely eliminate the trouble of losing the cap during writing, and can quickly open and close the cap with respect to the writing part with one-touch operation. Is.

[0009]

Embodiments of the writing instrument with a cap according to the present invention will be specifically described below with reference to the accompanying drawings. The drawings show an example of a writing instrument with a cap according to the present invention. A writing instrument with a cap 1 comprises a cylindrical writing instrument main body 2 having a writing portion 3 formed at one end, and a cap 4 capped with the writing portion 3 of the writing instrument main body 2. The cap 4 is capped on the writing part 3 in association with the cap 4, and the cap 4 is released from the cap 4.

An oil-based or water-based ink is housed inside the writing instrument main body 2 and is a generally known one in which an appropriate amount of ink flows out to the writing portion 3 by a capillary action for writing. An O-ring 6 is fitted in the tapered portion of the writing portion 3 to prevent ink leakage and evaporation when the cap 4 is capped.

On the cylinder side of the writing instrument main body 2, a rectangular housing 7 having front and rear openings is fixed, and a cap 4 is provided.
Arms 5 and 5 composed of two parallel plate bodies are integrally fixed to one side of the arm 5, and elongated holes 5a and 5a are formed in the arms 5 and 5, respectively. The arms 5 and 5 are inserted into and retractable from the front end of the opening of the housing 7, and the base ends of the arms 5 and 5 in this housing 7 are T-shaped provided at the tip of the push bar 8. The push bar 8 is pivotally rotatably supported by an engaging portion 8a, and a coil-shaped compression spring 9 is externally fitted to the push bar 8 to provide a stopper provided at the rear end.
It is fixedly attached by 8b.

On the other hand, one side of the dogleg shape of the generally dogleg shaped spring 10 is fixed to the housing 7, and the tip of the other edge of the dogleg shape is a pin and a set member 11 screwed to the pin. It is attached to the long holes 5a, 5a formed in the arms 5, 5 so as not to come off, and is capable of relative movement along the long holes 5a, 5a.

The writing instrument with a cap 1 having such a structure is used as follows. That is, the writing instrument 1 with a cap
As shown in FIG. 1, when not in use, the push bar 8 is extended to the rear end of the writing instrument main body 2 by the urging force of the compression spring 9, and the push bar 8 is attracted rightward to the arms 5 and 5 connected thereto to cap the cap. 4 is capped on the writing part 3 of the writing instrument main body 2 to protect them.

A stopper 8 at the rear end of the push bar 8
When b is pushed leftward against the compression spring 9, the arms 5 and 5 interlock with this and move leftward to move the cap 4 horizontally in the direction in which the cap 4 separates from the writing part 3. Arm 5, 5 at the same time
Moves to the left and the base end portion having the push bar 8 attached thereto is pushed out from the front end of the housing 7, the end portion is engaged with the long holes 5a, 5a of the arms 5, 5 as shown in FIG. The stopped spring 10 overcomes the biasing force of the compression spring 9 and the tip moves relatively along the long holes 5a, 5a of the arms 5, 5 so that the arms 5, 5 center on the base end. It rotates and goes upright through the rotating state shown by the two-dot chain line.

In this state, since the force of the spring 10 is larger than the urging force of the compression spring 9, the arm 5 is maintained in the upright state, so that the writing portion can freely write. is there.

Next, the stopper-8b of the push bar-8
Is pulled to the right, the biasing force of the compression spring 9
The arm 4 becomes stronger than the biasing force of the arm 5, and the arms 5 and 5 return toward the rear end and fall along the writing instrument body 2 to cap the writing portion 3 with the cap 4. Thus, the cap 4 normally protects and holds the writing part 3 without separating it from the writing instrument main body, and when using it, the cap 4 automatically covers the writing part 3 only by operating the stopper 8b with one touch. You can solve it and enable writing.

[0017]

According to the writing instrument with a cap of the present invention, the base end portion of the arm having an arm that covers the writing portion of the writing instrument main body has a base end portion of the arm and a tip end of a push bar in which a compression spring is interposed. By moving the push bar forward in association with the above, one end of the spring having a generally U-shaped shape provided in the housing is moved in the elongated hole provided in the arm to separate the cap from the writing portion and -This allows the writing to be done by making the writing machine stand upright with respect to the writing instrument main body and returning to the original crowned state by retracting the push bar, completely eliminating the trouble of losing the cap during writing, and The cap can be opened and closed quickly with one-touch operation.

Further, an O-ring is fitted to an appropriate portion of the writing portion of the writing instrument main body to prevent the oily or water-based ink leaking through the writing portion when the cap is capped from being dried and to be used conveniently. It is possible to provide a writing instrument with a cap.

[Brief description of drawings]

FIG. 1 is a partially cut side view showing a state when a writing instrument with a cap of the present invention is not used.

FIG. 2 is a partially cut side view showing a usage state of the writing instrument with a cap of FIG.

3 is an exploded perspective view of parts of the writing instrument with a cap of FIG. 1. FIG.

[Explanation of symbols]

 1 Writing instrument with cap 2 Writing instrument body 3 Writing part 4 Cap 5 Arm 5a Long hole 6 O-ring 7 Housing 8 Push bar 8a Engaging part 8b Stopper 9 Compression spring 10 Spring 11 Set member

Claims (2)

[Claims] 1. An arm integrally formed with a cap for covering a writing portion at a tip of a writing instrument main body is inserted into and retractable from a front end of a housing provided on a cylinder side of the writing instrument main body so as to be retractable. Inside, the base end of the arm is pivotally attached to the tip of the push bar, and the push bar is urged along the cylinder side behind the housing by a compression spring interposed on the outer periphery, and the housing has: One side of the V-shape of the generally U-shaped spring is fixed, and the tip of the other side of the V-shape is movable along the elongated hole formed in the arm of the cap by the setting member. By setting the push bar against the biasing force of the compression spring and advancing in the direction of the writing part of the writing instrument main body, the arm advances and the cap of the writing part of the cap is released, and at the same time the arm is released. -The base end of the By being pushed toward the front end, the spring overcomes the biasing force of the compression spring and the tip moves relatively along the long hole of the arm, and the arm rotates around the base end and stands upright. A writing instrument with a cap, characterized in that, by the backward movement operation of the push bar, the arm is tilted along the writing instrument body and the cap is capped on the writing section. 2. The O-ring is fitted to a part of the tapered outer periphery of the writing part of the writing instrument main body so as to maintain airtightness when the cap is crowned. Writing instrument with a cap.