JPH0872482A - Writing utensil with rotary indicator and rotary indicator for writing utensil - Google Patents

Abstract

PURPOSE: To provide a rotator, which is not moved even when being touched slightly and can easily be moved by hand by a method wherein anelastic body is inserted between a writing utensil shaft, on the outer peripheral surface of which an indicating part is formed, and the rotator, which has a show window opened on the side surface so as to visually recognize the indicating part and is put on the writing utensil shaft. CONSTITUTION: By pasting a seal, on which the hardness of lead is written, between stepped parts 3, which are formed integrally with a shaft head 2, an indicating part 4 is formed. An O-ring 7 is inserted from the side, at which no stepped part 3 is provided, of the shaft head 2 on the shaft head 2. From the side, at which the stepped parts 3 are provided, of the shaft head 2, a rotator 5 is put on the shaft head 2 and then the portion at the open end of the rotator 5 is caulked so as to prevent the rotator from coming out. By inserting the O-ring, proper friction is developed between the rotator 5 and the shaft head 2, resulting in developing no slippage of the indication of the hardness of refill lead even by slight touching but easy movement of the rotator 5 by hand through the application of proper force.

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 rotary indicator suitable for displaying the hardness of the core of a mechanical pencil and a rotary indicator for a writing instrument.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a mechanical pencil equipped with a rotary display for displaying the hardness of a core contained therein. As such a rotary type display, for example, there is one as shown below.

FIG. 7 is a partially cutaway sectional view of the rotary display provided in the knock portion of the mechanical pencil of the first conventional example. In this rotary display 71, a cylindrical shaft head 72 is covered with a rotating body 75 having a display window 76, and the rotating body 75 is locked by a locking tool 79. Accordingly, by rotating the rotating body 75, the hardness of the desired core written on the display portion 74 of the shaft head 72 can be displayed from the display window 76.

Further, FIG. 8 is a perspective view of a rotary type display of the second conventional example. In this rotary display 81, a rotary body 85 is clamped and fixed between a knock portion 82 and a pen shaft 87 by tightening a screw 88, and the desired hardness of the core written on the display portion 84 is displayed. It can be displayed on the window 86.

[0005]

However, in the rotary type display of the first conventional example, since it is necessary to hold the rotary body 75 on the shaft head 72 and press the locking tool 79, the manufacturing is difficult. It wasn't easy. In addition, the rotating body 7
If the inner surface of 5 is separated from the shaft head 72, almost no friction occurs. Therefore, even with a slight touch, the rotating body 75 moves and the hardness display of the core displayed in the display window 76 displayed shifts. . On the other hand, when the inner surface of the rotating body 75 is brought into contact with the shaft head 72, the friction is too great and the rotating body 75 cannot be easily moved by hand.

In the rotary display of the second conventional example, the display window 85
When changing the hardness display of the core displayed in, the rotating body 86 is fixed, so the screw 88 must be loosened each time, which is very inconvenient.

The present invention has been made to solve the above-mentioned problems of the prior art, and its first object is to:
Providing a writing instrument with a rotary indicator and a rotary indicator for a writing instrument that can be easily moved by hand by giving moderate friction to the rotating body, but that can be moved easily by hand. is there. A second object of the present invention is to provide a writing instrument with a rotary indicator and a rotary indicator for a writing instrument which do not require the use of a locking tool and which can be easily manufactured.

[0008]

The present invention is constructed as follows.

(1) A writing instrument shaft having a desired cross-sectional shape, a display portion formed on the outer peripheral surface of the writing instrument shaft, a cylindrical rotating body covering the writing instrument shaft, and an opening on a side surface of the rotating portion. Then, a writing instrument with a rotary display, comprising a display window through which the display section can be visually recognized, and an elastic member inserted between the writing instrument shaft and the rotating body.

(2) The rotary body is such that only one end is open, and the rotary body is covered with the end of the writing implement shaft and the open end is caulked, and the writing implement with a rotary display according to (1). .

(3) Both ends of the rotating body are open,
The writing instrument with a rotary display according to (1), wherein both open ends of the writing instrument shaft are covered by caulking.

(4) The writing instrument with a rotary display according to any one of (1) to (3), wherein the display section displays a plurality of types of core hardness.

(5) The writing instrument with a rotary display according to any one of (1) to (3), wherein the display section displays a plurality of ink colors.

(6) A cylindrical body having a desired cross-sectional shape which can be attached to and detached from the writing instrument main body, a display portion formed on the outer peripheral surface of the cylindrical body, and a cylindrical rotating body which covers the cylindrical body. A display window that can be viewed on the display unit by opening the side surface of the rotating body,
A rotary indicator for a writing instrument, comprising: an elastic member inserted between the cylindrical body and the rotating body.

(7) The rotary body is a rotary display for a writing instrument as described in (6), in which only one end of the rotary body is open, and the open end is covered and the open end is caulked. .

(8) Both ends of the rotating body are open,
The rotary indicator for a writing instrument as described in (6), wherein both open ends are crimped by covering the middle of the cylindrical body.

(9) The rotary indicator for a writing instrument as set forth in any one of (6) to (8), wherein the display section displays a plurality of types of core hardness.

(10) The rotary display for a writing instrument as described in any of (6) to (8), wherein the display section displays a plurality of types of ink colors.

[0019]

According to the present invention, since the elastic member provides a proper friction between the writing instrument shaft or the cylindrical body and the rotating body by the above-described structure, the rotating body moves and displays with a slight touch. Although it does not slip off, the rotating body can be easily moved by hand.

Further, the above (2), (3), (7),
With the configuration as described in (8), the rotary display can be manufactured only by fitting the cylindrical rotating body into the writing instrument shaft or the cylindrical body and caulking the end portion of the rotating body.

Further, according to the above configurations (4) and (9), the hardness of the core can be displayed on the display portion, and the above (5), (1)
According to the configuration of 0), the ink color can be displayed on the display unit.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a partially cutaway view of a rotary type display according to Embodiment 1. In this figure, reference numeral 1 is a rotary display, which is provided in the knock portion of the mechanical pencil. Reference numeral 2 denotes a shaft head, which has a circular cross section and is used by being fitted into a mechanical pencil body (not shown). Reference numeral 3 denotes a stepped portion having a diameter slightly larger than that of the shaft head 2, and is integrally molded with the shaft head 2 here, but may be molded and attached separately from the shaft head 2. Four
Is a display unit, and a sticker written as HB, H, B or the like is attached to display the hardness of the core. Reference numeral 5 is a rotating body, which is used by turning it by hand, and is composed of a cylinder whose one end is in an open state and whose inside diameter is slightly larger than that of the stepped portion 3. The open end is caulked. Has been done. Reference numeral 6 denotes a display window, and a desired one of the hardnesses of the core written on the display unit 4 is displayed here for use. 7
Is an O-ring in which an elastic member such as rubber is formed in an annular shape, and is inserted between the shaft head 2 and the rotating body 5 to give appropriate friction.

Next, a method of manufacturing the rotary display unit will be described with reference to FIG. First, attach a sticker with the hardness of the core between the shaft head 2 and the stepped portion 3 integrally molded,
The display unit 4 is used (see (a)). Next, the O-ring 7 is inserted into the shaft head 2 from the side where the step portion 3 is not provided (see (b)). Next, the rotating body 5 is covered from the side of the shaft head 2 where the step portion 3 is provided (see (c)). Further, the open end portion of the rotating body 5 is caulked so as not to fall off (see (d)).

As described above, according to the present embodiment, since it is not necessary to fit the locking tool, the manufacturing is facilitated, and the number of manufacturing steps is reduced, so that the manufacturing cost is reduced.

As shown in FIG. 3, the rotary display 1 manufactured as described above is rotated by hand to rotate the rotor 5 by hand, and the hardness of the core written on the desired display portion 4 on the display window 6 is obtained. It is used by displaying.

At this time, since the O-ring 7 is inserted, an appropriate friction is given between the rotating body 5 and the shaft head 2, and the hardness display of the refill does not deviate with a slight touch. However, since the rotating body 5 can be easily turned by hand, it is very convenient to use.

(Embodiment 2) FIG. 4 is a partially cutaway sectional view of a rotary type display according to Embodiment 2. This rotary display 41
Has almost the same configuration as the rotary display of the first conventional example shown in FIG. 7, but O is provided between the inner surface of the rotating body 45 and the shaft head 42.
The ring 47 is inserted, and the protrusion 48 is provided so that the O-ring 47 does not come off. The O-ring 47 gives a proper friction between the rotating body 45 and the shaft head 42.

As described above, by inserting the O-ring into the conventional rotary display, the O-ring can be made convenient (Example 3). FIG. 5 shows the rotary display of Example 3. It is a partially broken view of the container. The rotary display 51 is provided in the middle of a shaft 52 of the mechanical pencil body, and has a step portion 53.
O-rings 57 are placed on both sides of the rotary body 55, and a cylindrical rotating body 55 having both ends opened is covered on the both sides. The hardness is displayed.

Thus, the rotary indicator of the present invention can be provided on any part of the writing instrument shaft.

(Embodiment 4) FIG. 6 is a partially cutaway view of a rotary type display according to Embodiment 4. The rotary display 61 is provided at the end of the fountain pen. A tapered rotary body 65 is attached to the end of the fountain pen by caulking and attached to the display window 65 and the display 64. It displays the color of the written ink.

As described above, the rotary type display device of the present invention can be used for a writing instrument such as a fountain pen or a ballpoint pen if the ink color is displayed on the display window. The shape of the writing instrument shaft may be any shape as long as it does not hinder the rotation, such as a circular shape or a polygonal shape close to a circle.

(Modification of Embodiment) In the above embodiment, the annular O-ring is used as the elastic member. However, a proper friction is given by contacting both the inner surface of the rotating body and the writing instrument shaft or shaft head. Any shape of elastic member may be used as long as it can be used. Further, although the O-ring is placed near the end of the gap between the inner surface of the rotating body and the shaft, the elastic member such as the O-ring is located at any position between the inner surface of the rotating body and the writing instrument shaft or shaft head. You can insert it in. Further, the number of elastic members to be inserted can be selected to be an arbitrary number that provides the most preferable friction.

[0034]

As described above, according to the present invention,
Due to the action of the elastic member, the rotating portion does not move and the display is not displaced by a slight touch, but the rotating portion can be easily moved by hand, which is convenient.

Further, according to the inventions of claims 2, 3, 7, and 8, the rotary type display can be easily manufactured, thereby reducing the number of steps and the number of parts as compared with the prior art. Therefore, the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cutaway view of a rotary display according to a first embodiment.

FIG. 2 is an explanatory diagram of a method for manufacturing the rotary display according to the first embodiment.

FIG. 3 is an explanatory diagram of how to use the rotary display according to the first embodiment.

FIG. 4 is a partially cutaway sectional view of a rotary display according to a second embodiment.

FIG. 5 is a partially cutaway view of the rotary type display according to the third embodiment.

FIG. 6 is a partially cutaway view of the rotary type display according to the fourth embodiment.

FIG. 7 is a partially cutaway cross-sectional view of the rotary display of Conventional Example 1.

FIG. 8 is an explanatory diagram of a rotary display according to Conventional Example 2.

[Explanation of symbols]

 1, 41, 51, 61 Rotational indicator 2, 42 Shaft head 52 Mechanical pencil main shaft 4, 44, 54, 64 Display part 5, 45, 55, 65 Rotating body 6, 46, 56, 66 Display window 7, 47, 57, 67 O-ring

Claims (10)

[Claims] 1. A writing instrument shaft having a desired cross-sectional shape, a display portion formed on the outer peripheral surface of the writing instrument shaft, a cylindrical rotating body covering the writing instrument shaft, and an opening on a side surface of the rotating body. A writing instrument with a rotary display, comprising: a display window through which the display unit can be visually recognized, and an elastic member inserted between the writing instrument shaft and the rotating unit. 2. The writing instrument with a rotary indicator according to claim 1, wherein the rotary body has one end open only at one end, and the open end is swaged by covering the end of the writing implement shaft. 3. The writing instrument with a rotary indicator according to claim 1, wherein both ends of the rotating body are in an open state, and the rotating body is covered in the middle of the writing instrument shaft and has both open ends crimped. 4. The writing instrument with a rotary display according to claim 1, wherein the display section displays a plurality of types of core hardness. 5. The writing instrument with a rotary display according to claim 1, wherein the display section displays a plurality of types of ink colors. 6. A cylindrical body having a desired cross-sectional shape attachable to and detachable from a writing instrument main body, a display portion formed on an outer peripheral surface of the cylindrical body, a cylindrical rotating body covering the cylindrical body, and the rotating body. A rotary indicator for a writing instrument, comprising: a display window opened on a side surface of a body for visually recognizing the display section; and an elastic member inserted between the cylindrical body and the rotating section. 7. The rotary indicator for a writing instrument according to claim 6, wherein the rotary body has one end open only at one end, and the open end is swaged to cover the end of the cylindrical body. 8. The rotary indicator for a writing instrument according to claim 6, wherein both ends of the rotating body are in an open state, and the rotating body is covered in the middle of the tubular body and both open ends are caulked. 9. The rotary indicator for a writing instrument according to claim 6, wherein the display section displays a plurality of types of core hardness. 10. The rotary indicator for a writing instrument according to claim 6, wherein the display section displays a plurality of types of ink colors.