JPS58211261A - Small-sized electronic computer - Google Patents

Abstract

PURPOSE:To execute easily an operation, and also to prevent an input error caused by depression of an erroneous key, by placing a repeating key on the side except the keyboard face of a computer body. CONSTITUTION:A repeating key 3A is placed on the side of the right side of a computer body 1. In case of a repeating operation, an operator places the body 1 on the palm of left hand, executes necessary registering, an operation command input, etc., and thereafter, depresses the key 3A by the left forefinger by the necessary number of times. In case of this operation, it scarcely occurs that the operator depresses other input key by mistaking it for the key 3A. Accordingly, an input error due to depression of other input key than the repeating key by a finger of the left hand for holding the body is nearly prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a small electronic calculator, and more particularly to a plurality of 11/il calculators.
The present invention relates to a small electronic calculator having a keyboard surface on which input keys are arranged, and having a repeat operation function.

Many of the recent small electronic A1 calculators have a repeat operation function. This kind of small electronic type; 1 calculator Q1
Usually, the keyboard surface is equipped with a display section for displaying input numbers and calculation results, and a keyboard surface. 0-1, each 1.1 calculator various machines 11
Corresponding to H [7] Multiple inputs A-- are arranged 3
When these input keys are pressed by the operator, input signals corresponding to the respective functions are sent into the main body of the 111 computer and various calculations are performed.

The input keys include, for example, a numeric key for entering numbers from 0 to 9, an arithmetic key for instructing each of the four arithmetic operations and other operations, an equal key for instructing the start of an arithmetic operation, and others. There are various input keys depending on the functions of the hj calculator. The command function for repeat calculations is normally provided by the equal key, which also serves as the command function.

The reheat calculation is performed as follows. The operator first presses the number key to input a certain value, for example, X, and then presses the addition key (or calculation key). Next, press the numeric key to enter a certain value, for example y. Next, when the equal key is pressed, the calculation x@-y= (or x-y-) is performed, and the J1 calculation result is displayed on the display section. Thereafter, by repeatedly pressing the equal key, the value obtained by multiplying y by the number of presses of equal 8°- is added to 1 of X (and subtracted from the value of υ and IX). Repeat multiplication -, repeat division', and Ta- can also be performed using the multiplication keys and the finance key.

Recently, attempts have been made to use this glazed small Ichiko-style lil calculator as a subtraction counter by using repeat addition and repeat subtraction.
A problem has arisen in that an operator is likely to perform an erroneous operation.

The reason for this is that because the A1 calculator is small, the keyboard has a small surface area, and a large number of input keys are placed adjacent to each other on the ni. This is because other input keys adjacent to the key are often pressed. Especially when counting repeat key presses repeatedly at a fast speed, it is difficult to press only the equal key accurately without making a mistake.

This invention was made in order to solve the problems in t and 1 and above, and when performing repeat calculations, it is easy to operate ('1), and it also prevents erroneous input due to the wrong press of A-1. , a small city r/expression suitable as a non-counter that can be set, rl
It is said that 1 = 1 is the meaning of 11 poems.

In order to achieve this LI objective, in the present invention, if the repeat key is placed on the ful1 surface other than the keyboard surface of the main body of the t-ff1 machine, the input key of the repeat key is A configuration was adopted in which the connection and disconnection of the system are controlled through the movement of a repeat key.

The present invention will be described in detail below with reference to the drawings. An explanatory view of the second usage state is shown, and FIG. 3 shows another embodiment, and FIG. 4 shows the usage state.

As shown in Fig. 1, on the top surface of the rectangular main body of the A1 calculator, indicated by No. The lower part is a keyboard surface 20, on which a large number of input keys, numbered 4 to 12, are densely arranged in a matrix manner, and the others are numbered 13. A power switch is located.

The input keys listed in F are the clear function's 8 receivers, 11 clear keys, and 4. Memory A-5, O~1 corresponding to memory function
1'0 11'1° number key 6 for entering the number 0, decimal point -\, -7 for entering the decimal point in the number, equal key 8 for commanding the start of calculation, glk 'i :
9. Seisan key for commanding '. Addition key 10 for commanding addition. It consists of a division key 1 which commands division, and a multiplication key 12 which commands TOKYO.

Furthermore, a repeat key 3A, which is an input key for commanding repeat calculations, is arranged on the right side of the main body 1 of the calculator.

When each of these entry keys is pressed by the operator, 1. The ``1'' calculator performs t1 calculations in accordance with the function of the pressed key.

If the equal key 8 has a repeat calculation command function, the repeat key 3A is connected in parallel with the contact of the equal key 8, and the repeat key 3A is connected in parallel with the contact of the equal key 8. It is done. or,
Including the equal key 8, 1.1 calculation 1. , Reheat 6'j 'i'+
'If there is no input key to perform the command function, the repeat key 3A & has a contact point alone, and can receive the command and start function of repeat calculation independently.

Repeat performance t1 of the embodiment of the present invention consisting of the following explanations:
An example of use when 1 is multiplied by 1f is shown in FIG. 2, and will be explained accordingly.

The operation console is 1,1, with the calculator body 1 placed on the left palm,
Hold the power switch 13 with your finger other than your index finger and press
After switching to NI, press any input key from 4 to 12 with your right finger to input the necessary numbers and calculation commands, and then press the repeat key 3A with your left index finger the required number of times. good. During this operation, since the repeat key 3A is provided separately and away from other input keys,
It is highly unlikely that the operator will press another input key by mistake for the repeat key 3A. Moreover, since the fingers other than the index finger of the left hand hold the side of the 6i calculator body 1, their fingertips do not reach the keyboard surface 20-H.
It is difficult to press or even touch the human key on the keyboard surface with the fingers of the hollow hand.5 In other words, it is difficult to press an input key other than the repeat key with the finger of the left hand holding the computer body 1 by mistake. Most inputs are prevented.

However, in this embodiment, when performing operation t)1 other than the repeat operation, the operator presses any input key from 4 to 12 with the finger of his right hand, but if the operator performs the operation by mistake, It is conceivable that the repeat key 3A may be pressed with the index finger or middle finger of the left hand, resulting in an erroneous input.

In order to prevent this, the structure may be such that the repeat key can be locked when repeat calculations are not being performed. This configuration is shown in FIG. 3 as another embodiment of the present invention.

The embodiment shown in FIG. 3 is almost the same as the embodiment shown in FIG.
Only the different parts will be explained.

In this embodiment, the repeat key 3B is placed on the right side lf+i of the main body of the fil"II" machine. ?The machine body 1 no 1 mi Tsukuda mask V ``LOCKI
Move to the position indicated by the arrow (lock position) and rack jJ.

That is, j>”: In Figure 3, there is a small [7/This is in the f☆ position of repeat key 3B, 11 keys, 1 Isobui O Libby 1”6’
When the electric contact is connected and the repeat key 3B is moved to the lock position shown in the figure, the electric contact of the repeat key 3B is connected to the 1i calculator main body 1. It is configured to be disconnected from the input LfQ line.

As a result, if the repeat key 3B is placed in the lock key device and locked, even if the beat key 3B is pressed by the player, the repeat operation will not be performed.

A fourth example of use of another embodiment of the present invention consisting of the above explanation is given below.
As shown in the figure. When performing repeat calculations, the operator must:
? Place the HJ machine body 1 on the left palm, hold it with fingers other than the thumb, and press any input key from 4 to 12 with the finger of the right hand to enter the necessary numbers and calculation commands. After that, all you have to do is press the repeat key 3B with your left thumb the required number of times. At this time, although it is similar to the previous embodiment, since the fingers other than the thumb of the mu hand are holding the side surface of the di calculator main body 1, their fingertips do not reach the keyboard surface 20AH.
It is difficult to press the inputs arranged on the keyboard surface 20 with one finger, and erroneous inputs caused by pressing the same button are almost prevented.

When performing calculations that do not include repeat calculations, the operator presses the repeat key 3B and presses the [LOC] button in the figure.
After locking the repeat key 3B by sliding it to the position indicated by the R and l marks and arrows, the user presses the safe input key to perform calculations. Since the repeat key 3B is locked, even if the repeat key 3B is pressed by mistake with the thumb of the left hand, no erroneous input will occur.

In the above two embodiments, the repeat key is placed on the right side of the main body of the computer or on the left side of the main body.
Its placement is not limited to the left and right sides, and of course, it may be placed on the top, bottom, or back side depending on the convenience of use.

As is clear from the following description, the compact type 1' set 6. according to the present invention. For I9 aircraft, 1i l'"J'+
'The keyboard surface of the main body of the machine is c, 'g.
ll11, and a beat key '- is arranged, and 1. One repeat key (+j ``) A configuration is adopted in which the connection or disconnection of the j input is controlled through the movement of the repeat key (Since it is 7, repeat performance t11 is performed. In this case, it prevents accidental manual effort due to pressing keys other than the erroneous / C repeat key, and it is very easy to operate and can be performed accurately with one hand. Furthermore, even in other operations that do not include repeat operations, it is possible to prevent erroneous inputs due to erroneous pressing of the repeat key.

[Brief explanation of drawings]

Fig. 1 is an external perspective view of a small car R type::lt'- machine according to the present invention, Fig. 2 is an explanatory view of an example of its use, Fig. 2 is an external perspective view of another embodiment of the present invention, and Fig. 4 The figure is an explanatory diagram of an example of its use.

Claims (1)

[Claims] (J) In a small-sized 719 electronic SI calculator that has a keyboard surface with multiple input operation keys and a repeat calculation function, the f'+ key for repeat calculation command is input from the keyboard of the 81 calculator. Placed on the side other than i;t'
, a small electronic type 1τ1 calculation R6 (
2) The small-sized electronic calculator according to claim 1, wherein connection and disconnection of the input signal of the repeat calculation key are controlled through movement of the repeat calculation key.