JPS59166467A - Keyboard switch for motor tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a keyboard switch for a power tool.

Electronic control of power tools has greatly reduced the ability to improve performance and diversify functions. For example, in cutting tools such as electric drills, by inputting the material and drill diameter, the control circuit will control the motor to achieve the optimal cutting speed based on the input information, improving performance. We are trying to Such power tools have a keyboard switch as shown in Figure 1 for inputting information. In the figure, 2 is a push button indicating the material, 3 is a number button, and 4 is a clear button. .

All material buttons 2 are of a single color such as blue, and number buttons 3
, and the clear button 4 are orange.

You can tell the difference between the material and number buttons 2.3 and the clear button 4 at a glance, but you can't tell the difference between the number button 3 and the clear button 4 with your eyes, and you have to memorize the button positions. However, it may take some time to operate. In this example, since the number of functions is small, the degree of operational inconvenience is minimal; however, if the number of functions increases, operation becomes laborious and erroneous operations occur.

SUMMARY OF THE INVENTION An object of the present invention is to overcome the drawbacks of the prior art described above and to improve the operability of this type of keyboard switch.

The present invention aims to improve operability by recognizing that in switches where a large number of pushbuttons are arranged like a keyboard switch, the pushbuttons are color-coded to make them easier to distinguish. It is.

The present invention will be described in detail with reference to FIGS. 2 to 4. The present invention relates to a power tool having a keyboard switch, and a representative example thereof is an electric jigsaw. FIG. 2 shows the appearance of the electric jigsaw body,
5 is a housing that holds a power section such as a motor, and 6 is a drive section that converts rotational motion transmitted from the power section into reciprocating motion and that holds the cutter 7. 8 is a tail cover and has a built-in control circuit. The control content of this control circuit is to control the speed limiter, etc. in response to input information from a keyboard switch 9 provided at the upper part of the housing 1.

FIG. 3 is a front view of the inconvenient keyboard 1,
Each button is as follows. The push button 10 is used to select the material to be cut, and the push button 11 is an input push button for selecting the finish of the cut surface or the cutting method for distinguishing between straight cuts and curved cuts. The push button 12 is used to select the type of cutter, and the push button 12' is used to input the thickness of the material to be cut. The color scheme of each push button is, for example, 10 is evening color, 11 is white,
12 is orange, etc., and the colors of the push buttons are classified according to their respective functions. These color classifications can be done by different colors depending on the material of the keyboard 1, but it is also possible to differentiate only the surface by means of painting, printing, etc.

With the above configuration, when the operator searches for a push button, the range to be searched is intuitively indicated by color, and it is possible to find the desired push button in a short time, which is extremely advantageous in terms of operation. Therefore, erroneous operations are less likely to occur.

In addition to the above-mentioned non-inventive embodiment, as shown in FIG. 4, in order to further facilitate the selection of push buttons, push buttons are distinguished by function and color scheme, and also have different shapes. It is also extremely effective to do so. As shown in the conventional example, the method of changing the shape of push buttons is widely known, but when combined with the color coding according to function as seen in the present invention, the effect is greatly increased. This is the result.

According to the present invention, in a keyboard switch in which a large number of push buttons are arranged, the color scheme of the push buttons is classified by function, so that operability can be improved and erroneous operation of the keyboard switch can be prevented. Effects such as this can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a front view of a conventional keyboard, FIG. 2 is a perspective view of an electric jigsaw according to the present invention, FIG. 3 is a front view of a keyboard showing an embodiment of the present invention, and FIG. FIG. 2 is a front view of a keyboard showing an application example of the present invention. 1 is a keyboard switch, and 10, 11, and 12 are push buttons. Patent applicant name Hitachi Koki Co., Ltd.

Claims (1)

[Claims] A keyboard switch comprising a keyboard switch having a plurality of push buttons mounted on the power tool, characterized in that the push buttons are color coded according to their functions.