JPS61263011A - Electronic equipmemt - 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 [Field of Industrial Application] The present invention relates to an electronic device having a border/) keyboard.

[Summary of the Disclosure] This specification and drawings provide an electronic device having a flat keyboard, which enables rational and soft input by shifting the center positions of the key characters on the keyboard and the center positions of the keys, thereby extending the life of the keyboard. This article discloses techniques for improving this.

Please note that this summary is provided solely for the purpose of quickly accessing the technical content of the present invention, and does not have any influence on the technical scope of the present invention or the interpretation of rights. .

[Background Art] In recent years, electronic devices have become smaller and thinner, and as a result, the number of electronic devices equipped with a flat keyboard as an input keyboard has increased.

In general, a flat keyboard is a flat keyboard with an appearance as shown in Figure 2, and many have a membrane structure as shown in Figure 3.In Figure 0, 2 is a surface sheet on which key characters are displayed. , 4 is an upper substrate with key contacts, 6 is a spacer, 7 is a hole provided in the spacer, 8 is a lower substrate with contacts and others, 11 is a frame, 1
2 is the back sticker. Some devices do not use spacers and instead print silicone rubber or the like on the upper or lower substrate. In any case, in conventional flat keyboards, keys are displayed on the top sheet to indicate the center and five key positions of the keys, which are made up of key contacts formed on the upper and lower substrates and holes in the spacer. The centers of the letters were placed on the same axis.

When using a flat keyboard, the user presses the desired key character displayed on the front sheet, but usually the center of the pressing force from the fingertips (hereinafter referred to as the center of depression).
does not coincide with the center of the displayed character. The deviation varies depending on the type, font, size, color tone, and design of the top sheet on which the key characters are displayed. Figure 4 shows the deviation between the center of the key character (the center of the key) and the center of the press when pressing the conventional flat keyboard shown in Fig. 3.Due to this deviation, the key cannot be pressed. The force applied to the keyboard will not work effectively, the manual force on the keys will become heavy, and in some cases, the chances of the keyboard being pressed by fingernails will increase, which may shorten the lifespan of the keyboard.

[Problems to be Solved by the Invention] The present invention eliminates the misalignment between the center of key characters and the center of suppression in conventional flat keyboards, facilitates soft-touch input, and prevents unnecessary force from being applied to the keyboard, thereby extending the life of the keyboard. The purpose is to improve

[Means for Solving the Problems] In order to achieve the above object, in the present invention, the center position of the key character is not made to coincide with the center of the key, and the key character is not actually pressed. The center of the key is shifted to the position where it is most frequently used.

[Function] Since the center of the key is located at the position where the user has the most opportunity to actually press the key character, reasonable key force is possible, which is good for both the user and the keyboard. There is no unnecessary load.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partial cross-sectional view of an embodiment of the keyboard according to the present invention, in which 2 is a top sheet, 4 is an upper substrate, 6 is a spacer, 8 is a lower substrate, 11 is a frame, and 12 is a back seal. As shown in Figure 0, the center of the key character and the center of the key are misaligned. FIG. 5 is an exploded perspective view showing the structure of an embodiment of the keyboard according to the present invention, 2a, 2b, 4b, 8
b is a window, 3 is a key character, 5 is a key contact position, 9 is a power source such as a solar battery, and IO is a display device. This figure shows an example in which the center of the key character is shifted from the center of the key toward the window. It goes without saying that the configuration shown in FIG. 5 is merely an embodiment of the present invention.

FIG. 6 shows the state of the keyboard when the keyboard according to the present invention as shown in FIGS. 1 and 5 is pressed. Since the center of the key is offset from the center position of the key character so that it coincides with the center of suppression, the top sheet and upper substrate are deflected with an ideal deflection curve as shown in the figure, making it possible to obtain soft key force. can. - [Effects of the Invention] As explained above, in the electronic device of the present invention, since the character center position of the keyboard and the key center position are shifted, reasonable manual force is possible for the keys, and the life of the keyboard is improved. Note that this effect is particularly effective in small electronic devices where the key pitch must be narrow.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a part of a cross section of an embodiment of a flat keyboard according to the present invention, and FIG. 2 is a diagram showing the appearance of the flat keyboard. 3 is a cross-sectional view of a conventional flat keyboard; FIG. 4 is a diagram illustrating a pressed state of a conventional flat keyboard; FIG. 5 is an exploded perspective view showing the configuration of an embodiment of a flat keyboard according to the present invention; FIG. 6 is a diagram showing the pressed state of the flat keyboard according to the present invention. l...Flat keyboard, 2...Top sheet, 2a, 2b, 4b, 8b - window, 3...Key characters, 4...Upper board, 5...Key contact position, 6... Spacer, 7... Hole, 8... Lower substrate, 9... Power supply, 10... Display device, 11... Frame, 12... Back seal. IC in the key 1st/Figure 6 Key character Φ1 Mu 6-key center 4th 2α J Figure 5

Claims (1)

[Claims] An electronic device having a flat keyboard, characterized in that the center of the key characters on the keyboard is offset from the center of the key.