JPS6017819A - Keyboard - 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 [Technical Field] 1 /'IQ The present invention relates to a keyboard used for inputting signals to electronic equipment and the like.

[Prior Art] In recent years, in order to improve the operability of the keys arranged on the keyboard, keyboards of this type have been equipped with a key operation surface that is constructed from a plurality of V- surfaces on each top surface from an ergonomic point of view. Attempts are being made to make it curved.

Conventionally, the following two methods have been proposed for making the key operation surface of such a keyboard into a curved surface.

(1) One method is to curve the key array plate 2 having a large number of guide holes 1 in advance into a predetermined curve as shown in Fig. 1. By fitting a stem guide 5 that slides and covers a key stem 4 on the right side of the key top 3 into the -L portion of the key top 3, the key operation surface 6 formed by the top surface of the key top 3 can be made into a curved surface of any size.

However, in this method, after forming the key arrangement plate 2, it is necessary to fit the stem guide 5 into each guide hole 1 one by one, and this work is very time-consuming and the efficiency of the assembly work is significantly reduced. Resulting in.

In addition, since the key arrangement plate 2 formed from a steel plate is processed using plastic 111, it is advantageous in that it can maintain its original curved surface semi-permanently, but it is inevitably heavy, so the weight of the entire keyboard is reduced. However, given the current demand for weight reduction, this cannot be said to be very desirable.

(2) Another method is to form a stem guide part 8 integrally with the upper case 7 of the keyboard as shown in FIG. The top surfaces are each formed into a different curved surface.The key operation surface 11 constituted by the top surface of each key top 10 as a whole is a curved surface.

However, even with this method, it is necessary to mold the top surface of each 4=-1-tube 10 into a different curved surface, and therefore many types of molds are required to mold the key top 10, which increases the cost. However, as a result, the shortcoming of the keyboard was that it caused a large amount of hair.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned drawbacks of the conventional art and to form a case and a key arrangement plate into one piece. ) The key operation surface consisting of the top surface of the key 1 to knob of each key member arranged on the key arrangement board is curved (), which results in low cost and good operability. It is in.

(Configuration of Embodiment) Hereinafter, an embodiment of the present invention will be described in detail based on FIGS. 3 to 7. FIG. is constructed with a lower case 22 made of synthetic resin as well as a tenth case 21 made of synthetic resin.A rectangular opening 023 is bored in the tenth case 21 as shown in FIG. The hanging parts 2'l and 25 curved downward from the right side edges are lowered.

From the lower end of these hanging parts 2/'I, 25, the back side of the upper case 21 is shown in FIG. J, ■<Key layout board 263
- is continuous to the middle part of both left and right ends and is integrally molded. The key array plate 26 is formed in a flat plate state during molding, and is then curved during assembly as will be described later. Further, the key array plate 26 includes a key 1 hep 27 and a key stem 28 on its upper surface, and a bottom plate 29 having a substantially square planar shape is provided below the key stem 28 (for inserting the pressed key member 30 therethrough). The same number of stem guides 31 as the number of key members 30 are integrally molded.
A plurality of, for example, four, concave grooves 34 are formed in parallel with 2.33, and each key stem 28 is integrally suspended from the lower surface of the key arrangement plate 26, and is divided into partition plates having approximately the same size as the bottom plate 29. By being divided by 35, it is guided with respect to the vertical slide and also prevented from rotating. The concave grooves 34 are provided to give the key array plate 26 curvature when assembling the keyboard, as will be described later. It is being done.

4- Also, from the back of the ten case 21 downwards () (boss 36
, 37, 38, 39. /IQ, '11, 42°43) are installed, among which boss 7'IO, 41°42
．． 43 has a predetermined curved surface (=I') n sub-plate/14 fixed with set screws 715, 46, 47°7
'It is screwed onto I8. On the lower surface of this regulating plate 44, three protruding walls 49.50 are erected from the bottom surface of the lower case 22 to match the curved surface of the regulating plate 7'I/I.
．． A circuit board 52 on which a predetermined contact point 2) is formed by printed wiring is placed on the upper surface of the regulating plate 44, which is in contact with the regulating plate 1/1, etc. 1 female screw 53, 54, 55, 56 lower case 2
The circuit board 52 is screwed to the bosses 36, 37, 38 and 39 of the circuit board 52, thereby giving the circuit board 52 bendability. Further, a rubber-like elastic body 58 in which a plurality of cup-shaped parts 57 are formed is placed on the upper surface of the circuit board 52, and the cup-shaped part 57 is the sixth one.
As shown in the figure, there is a flexible aluminum dragon IIφ, 1 facing a pair of fixed contacts 60 formed on the circuit board 52 on the lower surface of the sponge member 59 fixed to the two walls.
An electrode plate 61 is further attached to the bottom surface of the synthetic resin.
An extremely thin insulating film 61a is attached to the left side. In addition, a condenser is formed by the fixed contact 60 of 1"1.6-'l.1 and the electrode plate 61 facing the other side.The key arrangement board 26 can be seen from the bottom of the partition board as shown in FIG. 35 is placed on the curved surface of the regulation plate 47I screwed to the -F case 21, and the curved surface is further placed on the lower surface of the key arrangement plate 26 in the concave groove 34. A1 For the slope, the 4-1 arrangement plate 26 is connected to the curved surface of the regulating plate 44 (
(2) A curved surface f'' having approximately the same curvature is provided, so that the key operation section 62 formed from the top surfaces of al-1 to the knob 27 is formed into a predetermined curved surface. At this time, the key arrangement plate 26 closes the opening 34 of the upper case 21, and the bottom of the key stem 28 inserted through the stem guide 31 is placed on the upper surface of the cup-shaped portion 57 of the rubber-like elastic body 58. It is always held in the non-operating position shown in FIG. 6 by the elastic restoring force of the cup-shaped portion 57.

[Operation of the embodiment]

Next, the operation of this embodiment will be explained. To perform a switching operation using the keyboard configured as shown in (1) below, first press down keys 1 to 27.

When the key h knob 27 is pressed down, the key stem 28, which is now integrated, is guided by the stem guide 31 to the lower part (lower part), and the bottom part of the key stem 28 is connected to the bottom part of the rubber bullet P1 body 58 (part 57). When the tab-shaped portion 57 is pressed, the electric plate 61 attached to the inside of the groove via the sponge portion 1]59 is rotated via the insulating film 61a. A pair of fixed electrodes 60 formed on the circuit analysis board 2 are brought into contact with the fixed mold 1 as shown in FIG.
The 10,000 fixed electrodes 60 are short-circuited in an alternating current manner, and a high frequency signal is transmitted from the 10,000 fixed electrodes 60 to the other fixed electrode 60 of the 41 pairs. The electrode plate 61 is connected to the n, +1, and in this embodiment, the -1 inside of the top portion 57 via the sponge member 59.
Since +I is necked, the sponge part +: 459 bullet 1!
In one modification, the key top 27 plate 61 is reliably brought into close contact with the fixed electrode 60 via the insulating film 31a, and is sufficient for high frequency transmission.Next, the key top 27 7- When the push is released, the key stem 28 is pushed upward by the force of the cap-like part 57, and the key stem 28 is pushed upwards by the force of the cap-like part 57, and the signal transmission is stopped. The key stem 2 is stopped and the key stem 2 is restored to its original position.
The bottom plate 29 placed 1Ql-1 below the key stem 28
This prevents the key stem 28 from being pulled out of the stem guide 31, and also prevents the key stem 28 from overturning in cooperation with the partition plate 35.

Next, a method for assembling the keyboard according to this embodiment will be explained. To assemble the keyboard, first remove the regulation plate 44.
The circuit board 52 is placed on the substrate 52, and the rubber-like elastic body 58 is placed on top of the circuit board 52. Seal these parts in advance.
Set screws 53, 54, 55.
By-V case 21 bosses 36, 37. 38. 39
Insert screw 11. Furthermore, the key arrangement plate 26 is connected to the regulation plate 4.
Set screw 45.46 that curves along the curved surface of 4.
According to ゜47.48, from the bottom of the regulating plate 4/I to the upper case =
8-21 Boss'to, /11. /12.713 screw II
I'll try it. To this J: Rekey arrangement board 2G is concave) Vr 3
51, the circuit 31 (which is regulated by the regulating plate /1/'l together with the plate 52, and on the curved surface of the regulating plate 4/1) has a curved state of a. The held body 1 is held in the upper case 21. As a result, the key operation section 62 arranged on the key array board 2G and formed by the top surface of the knob 27 has a curvature that is almost the same as the curvature given to the key array board 2G. It is formed into a curved surface that covers 4. Thereafter, the ten case 21 and the T case 22 configured as described above are assembled together (
In particular, the re-keyboard is completed.

As mentioned above, in this embodiment, the key arrangement plate 2G integrally molded with the stem guide 31 is placed under the heavy lower part 24.25 of the 1-tunose 21*; Since it is molded in one piece, the number of parts is reduced to one person [l]!
δ Utilized parts] To reduce stress 1! At the same time, the movement of the assembly 1v can be improved.

Furthermore, as shown in FIG. 5, the ten-array plate 2G is formed into a flat plate at the time of molding, and is then bent when the keyboard is assembled, so that the stem guide 3
1 and the partition plate 35 are integrally molded, there is no problem in handling the mold, and the molding can be easily performed. Further, since the concave groove 34 is formed on the lower surface of the key array plate 26, when the key array plate 26 is curved along the curved surface of the regulation plate 44, it can be easily curved, and therefore the key member 30 Even if all the same key members 30 are used without using special parts, the key operation screen 62 formed by the top surface of each key top 27 can be easily made into a curved surface, and the operation can be performed at low cost. You can get a keyboard with good performance.

Furthermore, in this embodiment, since the flexible electrode plate 61 is attached to the inner upper wall of the cap-shaped portion 57 of the rubber-like elastic body 58 via five sponge members, the key top 27 is pressed down to switch. Even if the circuit board 52 is curved during operation, the elastic deformation of the five sponge members allows the switching operation to be performed reliably.

〔Effect of the invention〕

As described above, the present invention allows the key operation surface to be a curved surface by a simple 4M configuration, which allows the operation at a low cost.
We can provide a good ear 4-board, and the effect it has is on people.

[Brief explanation of the drawing]

Figures 1 and 2 show a cross-sectional view of a conventional 4-1 board, Figure 3 and the following show an embodiment of the present invention, Figure 3 is a cross-sectional view of a keyboard, and Figure 4 is a keyboard. An exploded perspective view of
Figure 5 is a perspective view of the back of the upper case, Figure 6 is an enlarged explanatory diagram to explain the key switch part, and Figure 7 is an enlarged diagram to explain the key switch part when the key top is pressed. It is an explanatory diagram. In the figure, 21 is an upper case, 22 is a lower case, 23 is a frontage,
24 and 25 are hanging parts, 261j is a key arrangement plate, 30 is a key member, and 52 is a circuit board. Patent applicant Burari “-T Kuri Co., Ltd. 1 Director and President Katsuji Kawashima 37 Figure 6 Figure 7 Figure 7

Claims (1)

[Scope of Claims] An upper case made of synthetic resin, which is provided with a rectangular opening and a hanging portion extending downward from the left and right side edges of the opening; a key array board made of synthetic resin on which keys are arranged; a circuit board arranged below the key array board and formed with a contact circuit that is opened and closed by the keys; and a lower circuit board arranged below the circuit board. and a case, the key arrangement plate and the upper case are integrally molded by making the intermediate portions of the right and left ends of the key arrangement plate continuous with the lower end of the hanging portion, and the key arrangement plate is curved. A keyboard characterized by holding.