JP2514297Y2 - Writing instrument with calculator - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument with a calculator, and more particularly to a writing instrument equipped with an abacus-type calculator for calculating and displaying numerical values according to the position of a piece.

[0002]

2. Description of the Related Art Conventional simple calculators for personal use include an abacus, a calculator, and a slide rule, all of which are abacus beads, numeric keys, and scales in consideration of operability. Etc. must be secured in a practical size, and a certain installation volume is required as a whole. Therefore, when a calculator is attached to a small-capacity writing instrument, the installation volume cannot be sufficiently secured, and it is difficult to realize a practical writing instrument with a calculator. Also, conventional calculators are basically placed on a desk for operation,
Otherwise, it is designed to be grasped with one hand and operated with the other hand, which is extremely inconvenient when used outdoors or for shopping. In view of the above problems, the present invention is intended to realize a writing instrument with a calculator that has practical operability and that can be operated with one hand without trouble.

[0003]

In order to achieve the above object, a writing instrument with a calculator having a rod-shaped main body having a writing portion at least at one end, and a calculator in the main body, is provided with the present invention. The means taken are such that the calculator is mounted on the peripheral surface of the main body in a plurality of guide paths extending in the axial direction thereof, and movably attached along the guide paths, and at a plurality of stop positions in the guide path. One or a plurality of piece members that can be positioned, and a plurality of engaging portions that are provided in the extending direction of the guide path corresponding to the stop position are formed on both inner surfaces of the guide path, respectively. On the back of the piece member,
It is characterized in that elastic rings provided with engaged portions configured to be able to maintain an engaged state with the engaging portions on both side surface portions are attached. In this case, it is preferable that an operating projection formed in a shape projecting more than the surrounding area in the axial section is provided on the surface of the piece member. Further, it is preferable that the guide path is attached to the main body so as to be rotatable about its axis.

[0004]

According to such means, by moving the piece member along the guide path on the peripheral surface of the main body and arranging it at any one of a plurality of stop positions, it becomes possible to perform numerical calculation and at the same time, Numerical values can be displayed according to the arrangement of members. Here, since the engaging portion of the guide path and the engaged portion of the elastic ring are configured to engage at the stop position, the position of the piece member can be reliably held. Calculations can be performed without having to worry about the posture of the tool, and it can be easily operated with one hand. In addition, by providing the engaged portion that engages with the engaging portion on both side surface portions of the elastic ring, it is possible to achieve both operability and certainty of holding of the piece member by the elastic force of the elastic ring, Since the engaged portion can be configured only by the elastic ring and the structure is simple, the manufacturing is easy and the size can be reduced. By providing the operation projection on the surface of the piece member, the piece member can be easily moved even if the engaging force between the engaging portion of the guide path and the engaged portion of the elastic ring is large. And the operability is improved. By attaching the guide path to the main body so as to be rotatable about its axis, it is possible to rotate only the calculator part without rotating the main body.
The piece members attached to the plurality of guide paths can be easily operated, and the operability can be further improved.

[0005]

Embodiments of a writing instrument with a calculator according to the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, this calculator-equipped pen 1 has a writing portion 2a at one end.
In addition to the basic part consisting of the main body 2 provided with and the cap 3 formed to cover the writing part, the calculation part 4 is provided on the peripheral surface of the main body 2. The calculation unit 4 arranges five first guide paths 41 and second guide paths 42 formed by the guide frame 21 extending in the axial direction of the main body 2 in parallel on the circumferential surface, and four pieces on each guide path. The strip 5 and one piece 6 are slidably attached. First guide route 4
In FIG. 1, five piece-shaped piece stop positions are provided by the engaging concave portions 22 formed on the side surface of the guide frame 21 and the second guide path 42.
The two engaging pieces 22 are provided with two piece-shaped piece stop positions, respectively. A digit display portion 8 is provided on the other end side of the main body 2 corresponding to each of the five guide routes. That is, the calculation unit 4 has a function equivalent to that of a five-digit abacus that is circulated in a cylindrical shape, and each digit from ten to ten thousand is displayed by the digit display unit 8 corresponding to each guide route.

Since the piece pieces 5 and 6 have the same structure,
The structure and mounting state of the piece 5 will be described below with reference to FIGS. 3 and 4. The piece 5 has a smooth surface provided with an operating projection 51 extending in the width direction at the center, and by putting a finger on the operating projection 51, the piece 5 can be moved back and forth. There is. A substantially elliptical elastic ring 53 is fixed to the back surface thereof via two attachment portions 52. Engaging projections 53a that project outward are formed at both ends of the elastic ring 53, which are movable parts, and are fitted into the engaging recesses 22 by elastic force so that the piece-shaped piece 5 is stopped at a predetermined piece-shaped piece stop position. It is designed to hold. An L-shaped guided piece 54 is fixed near the four corners of the back surface.
By engaging with the guide frame 21, the piece 5 is attached slidably in the axial direction. A through hole 2b is formed in the center of the main body 2 to accommodate the pen shaft 7 shown in FIG.

The piece-like pieces 5 and 6 are moved in the axial direction in the same manner as a normal abacus, and the engaging projections 53a are fitted into the engaging concave portions 22 to position them, so that calculation and numerical display can be performed. . Since the arrangement itself of the piece pieces 5 and 6 serves both for calculation and display, even if a certain number of digits (5 digits or more) is provided, a piece of practical size is provided on the peripheral surface having a small area. A strip can be attached. Further, since the piece-shaped pieces 5 and 6 are attached so as to be movable in the axial direction, a sufficient moving distance can be secured, and even if a plurality of piece-shaped pieces are arranged in the moving direction, sufficient operability can be secured. Further, as shown in FIG. 5, by rotating the main body 2 while gripping it, it is possible to feed the piece-shaped pieces 5 and 6 while changing the operation digit moved by, for example, the thumb, and easily calculate with one hand. be able to. In this case, the main body 2 supporting the calculation unit 4
It is sufficiently realizable by a well-known technique to form the part of (4) by a member different from the other main body and attach the calculation part 4 (that is, the guide frame 21) to the main body 2 so as to be rotatable. In this case, since the operation digit can be changed by rotating only the calculation section 4 without rotating the main body 2 itself which is being gripped during the calculation, the calculation operation becomes easier. Of course, in order to position the rotation angle of the calculation unit 4 at a predetermined interval, the engaging projection 53a of the elastic ring 53 is formed.
It is more convenient to provide a mechanism similar to the latch mechanism including the engaging recess 22 and the engaging recess 22, because unnecessary rotation is prevented during the operation of moving the piece.

[0008]

As described above, according to the present invention, the following effects can be obtained. According to the first aspect, by moving the piece member along the guide path on the peripheral surface of the main body and arranging it at any one of the plurality of stop positions, it becomes possible to perform numerical calculation and at the same time, Numerical display according to the arrangement can be performed.
Here, since the engaging portion of the guide path and the engaged portion of the elastic ring are configured to engage at the stop position,
Since the position of the piece member can be reliably held, calculation can be performed without having to worry about the attitude of the writing instrument,
Moreover, it can be easily operated with one hand. In addition, by providing the engaged portion that engages with the engaging portion on both side surface portions of the elastic ring, it is possible to achieve both operability and certainty of holding of the piece member by the elastic force of the elastic ring,
Since the engaged portion can be configured only by the elastic ring and the structure is simple, the manufacturing is facilitated and the size can be reduced. According to the second aspect, by providing the operation projection on the surface of the piece member, even if the engaging force between the engaging portion of the guide path and the engaged portion of the elastic ring is large, the piece member can be easily attached. It can be moved, and operability is improved. According to claim 3, since the guide path is rotatably attached to the main body about its axis, only the calculator portion can be rotated without rotating the main body. The piece members attached to the plurality of guide paths can be easily operated, and the operability can be further improved.

[Brief description of drawings]

FIG. 1 is a side view showing the structure of an embodiment of a writing instrument with a calculator according to the present invention.

FIG. 2 is a partial cross-sectional side view showing a state of the same example during writing.

3 is a cross-sectional arrow view showing a state of being cut along the line III--III in FIG.

4A is a front view showing the shape of a piece-like piece to be attached to the embodiment, FIG. 4B is a side view of the piece-like piece, and FIG. 4C is a bottom view of the piece-like piece.

FIG. 5 is an explanatory diagram showing a state of operating a calculator in the example.

[Explanation of symbols]

2 main body, 21 guide frame, 22 engagement concave portion 3 cap, 4 calculator, 41 first guide path,
42 second guide path 5,6 piece piece, 53 elastic ring, 53a engaging projection, 54 guided piece

Claims (3)

(57) [Scope of utility model registration request] 1. A has a rod-like body having a writing portion at least on one end, the calculator with a writing instrument provided with a calculator to the body, the calculator, the axial direction on the circumferential surface of the body Stretches to
A plurality of guide paths that, movably mounted along said guide path, and a plurality of that could be positioned at the stop position of one or more of the bridge member of the guide in the path of the guide path
On both inner surfaces, the guide route corresponding to the stop position
A plurality of engaging portions provided in the stretching direction are formed,
On the back surface of the piece member, an engagement state with the engagement portion is provided.
Elasticity with engaged parts that can be held on both sides
Writing instrument with calculator characterized by having a ring attached . 2. The surface of the piece member according to claim 1,
Protrudes from the surroundings in the axial cross section.
A writing instrument with a calculator, which is provided with an operation protrusion formed in a shape . 3. The guide route according to claim 1,
It is attached to the main body so that it can rotate around its axis.
A writing instrument with a calculator characterized by being written .