JP2875697B2 - Keyboard device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard device used for input to an information processing apparatus, and more particularly, to a portable laptop personal computer which is easy to carry and has a thin thickness. The present invention relates to a keyboard device used for a computer, a word processor, and the like.

[0002]

2. Description of the Related Art FIG. 25 is a side sectional view showing a conventional keyboard device, and particularly a keyboard using a membrane contact.
Device. In the drawing, reference numeral 1 denotes a key top having a key plunger 2 at a lower portion, 3 denotes a coil-shaped return spring mounted so as to surround the key plunger 2, and 4 denotes a key.
A key switch case that supports the top 1 so that it can move up and down,
5 is a contact pressing spring attached to the spring guide 2A of the key plunger 2, 6 is a movable contact 7 and an array pattern (not shown).
8 is a fixed contact film made of a polyester film printed with conductive ink, and 8 is a fixed contact film made of a polyester film printed with an array pattern (not shown) made of conductive ink. 6 and a fixed contact film 8 are joined by an adhesive or the like, and a notch 1
A spacer 12 having a numeral 1 is a reinforcing plate provided below the fixed contact film 8.

The contact pressing spring 5 is disposed above the movable contact 7 and the fixed contact 9. Further, a membrane contact portion 13 is constituted by a movable contact film 6 provided with a movable contact 7, a fixed contact film 8 provided with a fixed contact 9, and a spacer 10.

Next, the operation of the keyboard device having the above configuration will be described. First, when the key top 1 is pressed with a finger, the key plunger 2 and the contact pressing spring 5 are lowered.
The contact pressing spring 5 comes into contact with the movable contact film 6 and further deflects the movable contact film 6. Therefore, the movable contact 7 comes into contact with the fixed contact 9 of the fixed contact film 8, and the contact is opened. When the key top 1 is further depressed, the key plunger 2 descends, but the contact pressing spring 5 contracts without descending because the movable contact 7 and the fixed contact 9 are in contact with each other, and the movable contact film 6 is moved by the spring force. Press. When the finger is released from the key top 1, the key plunger 2 is raised by the return spring 3, and the contact pressing spring 5 is separated from the movable contact film 6. Accordingly, the movable contact 7 separates from the fixed contact 9 of the fixed contact film 8, and the contact is separated.

[0005] By the way, a portable personal computer
A keyboard device of this type is also used for a table or a word processor, but there are many demands for making the device itself lighter and thinner because it is a portable type. In particular, as shown in FIG. When not used, in a personal computer or the like having a structure in which the display device serves as a lid, it is required that the device be thin when stored.

FIG. 27 is a sectional view showing another conventional keyboard device, and FIG. 28 is an exploded perspective view thereof. In the figure, 15 is a key top having a sliding pin 15A and a claw 15B, 16 is a cup rubber, 17 is a guide 17A for supporting the sliding pin 15A of the key top 15 so as to be vertically movable and a key top 15A. This is a key switch base in which a plurality of key switches 17C each comprising a claw 15B and a clamp 17B for clamping the claw 15B are integrally formed. Further, the membrane contact portion 13 having the movable contact 7 and the fixed contact 9 and the reinforcing plate 12 are fixed below the key switch base 17 by set screws 18.

Next, the operation of the keyboard device having the above configuration will be described. First, as shown in FIG.
In a state before the top 15 is pressed, the key top 15 is pushed upward by the cup rubber 16 and the claw 15
B is clamped to the key switch 17C.
At this time, the sliding pin 15A is inserted into the sliding guide 17A by an arbitrary amount. When the key top 15 is pushed down, the sliding pin 15A descends along the sliding guide 17A. When the key top 15 is completely pushed down as shown in FIG. Pushes down the movable contact 7 of the membrane contact 13 and contacts the fixed contact 9 to close the switch. At this time, the amount of movement of the key top 15, that is, the amount of stroke and the amount of movement of the sliding pin 15A are equal. And
When the force for pressing the key top 15 is removed, the key top 15 is brought into the state shown in FIG. 27, and the switch is opened.
In this way, in order for the key top 15 to move well, the initial insertion amount of the sliding pin 15A and the sliding 17A needs to be a certain amount or more.

[0008]

However, when the keyboard device having the above-mentioned structure, particularly the keyboard device shown in FIG. 25 is used for a portable personal computer or word processor. When the lid is closed, the display device sometimes pushes down the key top. Therefore, even when the key top is lowered and the contact pressing spring is pressed, the membrane contact is held in a deflected state for a long time while the device is not used. There have been problems that the contacts are kept closed and that the glass is scratched by the vibration during transportation because the key top is pressed down on the glass surface of the display device.

Further, in the keyboard device shown in FIG. 27, when the overall height is simply reduced, the initial insertion amount of the sliding pin and the sliding guide, that is, the initial sliding length can be sufficiently obtained. However, there is a problem that the stroke amount is small and a good operation feeling cannot be obtained.

According to the present invention, in the above-described display device or the like, in a portable personal computer or the like which is stored with a lid, when the lid is stored when not in use, the membrane contact portion is deformed and the contact is closed. In order to eliminate the problem that the operation is degraded if the stroke is left as it is, or if the overall height of the keyboard is lowered, and if the stroke is sufficient, the stroke is reduced if the operation is improved. The restoring spring of the key top and the contact pressing spring are formed of a leaf spring. When the lid is stored, the leaf spring is slid so that the height of the keyboard device can be reduced. By moving the key switch base including up and down up and down, the total keyboard height and key stroke amount can be changed.
Another object of the present invention is to provide an excellent keyboard device having a good operational feeling during operation.

[0011]

According to the keyboard device of the present invention, a return spring and a contact pressing spring are integrally formed on a leaf spring sheet, and the leaf spring sheet is slid by a slide mechanism. It changes the height of the key top.

Further, a key switch base including a key top is provided.
The key is moved up and down by a slide operation of a slide bar to change the total height of the key top and the stroke amount.

Further, the keyboard device according to the present invention comprises a sheet member having a plurality of key contact portions, and a plurality of keys provided on the sheet member so as to correspond to the point portions. A switch, a cover formed around the sheet member, a lid rotatably provided at one end of the cover and having a protruding pressing member, and a spring for pressing the sheet member upward. The height of the keyboard can be changed by opening and closing the lid and moving the sheet member up and down.

[0014]

FIG. 1 is a partially exploded perspective view showing an embodiment of a keyboard device according to the present invention. FIG. 2 is a fragmentary sectional view of FIG. 1, and FIG. It is an exploded perspective view of a part. As an example, a case where the present invention is applied to a portable personal computer or the like will be described. In the figure, reference numeral 19 designates the detailed configuration of FIG. 2, FIG. 3 and FIG.
As shown in the figure, a slide guide 1 having a projection 19A and a width W1.
A key top 20 having a sliding lever 9C and a sliding lever 19C having a retaining claw, 20 is a sliding hole in which the sliding lever 19C slides as shown in FIGS. A switch housing 21 having a guide hole 20B, a guide hole 20B and a guide boss 20C is shown in FIG.
As shown in FIGS. 3 and 5, a return spring 21A, a contact pressing spring 21B, a guide slot 21C, a slide groove 21D,
A leaf spring sheet having a stopper portion 21E and a stud 21F, 22 is a membrane contact portion having a guide hole 22A as shown in FIG. 3, 23 is a reinforcing plate having a screw hole 23A as shown in FIG. Is a set screw (see FIG. 3), 25 is a rotary shaft that rotates by opening and closing the lid having the display device 14, 26 is a rotary shaft that is rotated by the rotation of the rotary shaft 25, and a leaf spring is mounted on its outer peripheral surface by a suspension spring 27. To 21
Is an eccentric cam that comes in contact with the stud 21F.

Next, the assembling and switching operation of the keyboard device having the above configuration will be described.

(A) Assembly of keyboard device A membrane contact portion 22 is placed on a reinforcing plate 23, and a leaf spring sheet 21 is placed thereon. Then, the switch housing 20 is placed on the leaf spring sheet 21. At this time, the screw holes 23A of the reinforcing plate 23, the membrane contact portions 22
Guide hole 22a, leaf slot 21 of leaf spring sheet 21
With the C aligned, as shown in FIG. 6, the guide boss 20C of the switch housing 20 is inserted, and the set screw 24 is tightened to fix integrally. At this time, the length of the guide boss 20C of the switch housing 20 is the leaf spring sheet 2
1 and a little longer than the thickness of the membrane contact portion 22, there is a slight gap in the vertical direction.
The guide 21 can be freely moved in the longitudinal direction of the guide slot 21C by the guide slot 21C.

Although only one screw hole 23A, guide hole 22A, guide elongated hole 21C and guide boss 20C are shown (see FIG. 6), it goes without saying that a plurality of screw holes are provided.

(B) The operation of the key switch section, particularly the key top, when the lid having the display device 14 is closed will be described.

First, when the cover having the display device 14 is closed, the rotating shaft 25 rotates and the eccentric cam 26 rotates. A spring 2 is attached to the outer peripheral surface of the small diameter portion of the eccentric cam 26.
7, the leaf spring sheet 21 slides to the left. Therefore, the contact pressing spring 21b separates from the membrane contact portion 22, as shown in FIG.

Further, two projections 19A of the key top 19 are provided.
(Only one protrusion is shown in FIG. 4).
1A, the slide guide 19B is in contact with the contact pressing spring 2
1B is in contact. The slide guide 19B
Is the width W2 of the slide groove 21D of the return spring 21A.
Slightly smaller (W2>W1> W3). Further, the slide groove 21D of the return spring 21A has a stopper portion 21E whose width becomes narrower toward the base, and the display device 1
In a state where the cover having the cover 4 is closed, the leaf spring sheet 21 is slid to the left, so that the stopper portion 21E engages with the slide guide 19B of the key top 19, and
The top 19 stops moving upward, and can be held in the state of FIG.

(C) The operation of the key switch unit, particularly the key top, when the lid having the display device 14 is opened will be described.

First, when the lid having the display device 14 is opened,
The rotation shaft 25 rotates, and the eccentric cam 26 rotates. A spring 27 is attached to the outer peripheral surface of the large-diameter portion of the eccentric cam 26.
As a result, the stud 21F is forcibly contacted, so that the leaf spring sheet 21 slides rightward. Therefore, the return spring 21A and the contact pressing spring 21B can be returned to the initial state as shown in FIG. In this initial state, when the key top 19 is started to be pressed by a finger, an initial pressure is required, and the projection 19A of the key top 19 is
A, the return spring 21A is bent even in the initial state.

When the key top 19 is pressed down, as shown in FIG. 8, the projection 19A of the key top 19 deflects the return spring 21A, and the contact pressing spring 21B formed integrally with the return spring 21A. The contact can be closed by pressing the membrane contact portion 22 by bending. Further, when the key top 19 is pressed, the return spring 21A and the contact pressing spring 21B are further deflected, and although not shown, the key spring 19A is pressed.
The top 19 and the key housing 20 abut and stop.

When the finger is released from the key top 19, the contacts of the membrane contact portion 22 are opened in the reverse order of the above description, and the key top 19 returns to the original position by the force of the return spring 21A. can do.

When the engagement portion of the key top 19 with the return spring 21A is structured as shown in FIG. 9, the key top 19 is moved to the return spring 21A at any position where the return spring 21A is inclined.
Can be pressed.

FIG. 10 is a perspective view of another embodiment of the keyboard device according to the present invention applied to a portable personal computer or the like, and FIG. 11 is a partially detailed perspective view of the same. In the drawing, 28 is a knob, 29 is a rotating shaft that rotates by turning the knob 28, 30 is one end fixed to the rotating shaft 29, the other end is fixed to the leaf spring sheet 21, and the knob 28 is turned. Is a steel belt wound around the rotation shaft 29.

In the keyboard device having this configuration, when the operator turns the knob 28, the steel belt 30 is wound around the rotating shaft 29, and the leaf spring sheet 21 slides. Therefore, the amount of sliding of the leaf spring sheet 21 depends on the amount of rotation of the knob 28.
The height of the key top 19 can be freely changed by rotating the knob 28 by an arbitrary amount.

When the cover having the display device 14 is closed, by turning the knob 28, the height of the key top 19 can be reduced by performing the above-described operation.

In order to prevent the leaf spring sheet 21 from sliding due to vibration or the like during operation, for example, a plurality of projections 31 are provided on the side surface of the knob 28, and these projections 31 are provided on the case side. It is needless to say that a hole (not shown) that engages with the hole may be provided and stopped.

FIG. 12 is a partially cutaway perspective view of a keyboard device according to still another embodiment of the present invention applied to a personal computer or the like, and FIG. 13 is an exploded perspective view of FIG. In the figure, 32 is an upper cover, 33 is a front cover, and 34 and 35 are inclined holes 34A, 34B and 35, respectively.
A, 35B, slide bars having slide grooves 34C and 35C, one end of which is fixed to the front cover 33, 36 is a key including slide holes 36A and 36B, slide pins 37A to 37D, and a key top 19. A key switch base 40 having a switch section 38 and an auxiliary cover 39 is a key switch base.
A board 42 on which fixing pins 41A and 41B inserted into the sliding holes 36A and 36B of the switch base 36 are fixed;
Is a lower cover to which the substrate 40 can be attached with screws 43.
It is.

FIG. 14 is an exploded perspective view showing the relationship between the slide bars 34 and 35 and the key switch base 36, and FIG. 15 is a partially detailed perspective view thereof. Also, fixing pins 41A and 41B fixed to the substrate 40
Are inserted into sliding holes 36A and 36B of the key switch base 36, respectively. Also, slide pins 37A to 37D protruding from both sides of the key switch base 36.
Are inclined holes 34 of slide bars 34 and 35, respectively.
A, 34B and 35A, 35B. Also,
Both sides of the substrate 40 are fitted so as to slide in the sliding grooves 34C and 35C of the slide bars 34 and 35, and the slide bars 34 and 35 can slide. The inclined holes 34A, 34B and 35A, 35B of the slide bars 34 and 35 have lower sliding portions 34A1, 34B1 and 35A1, 35A, respectively.
B1 and upper sliding parts 34A2, 34B2 and 35A
2, 35B2. 44 is a cup rubber.

Next, the operation of the keyboard device having the above configuration will be described with reference to FIGS.

First, FIG. 16 (A), FIG. 16 (B), and FIG. 17 show the operation of forcibly pressing down the key top 19 to make the key switch unit unused. Will be explained. Turn the front cover 33 rightward (Fig. 16 (A)
Slide bars 34 and 35
Since both sides of the substrate 40 are fitted into the sliding grooves 34C and 35C, the board 40 slides rightward. For this reason, the inclined holes 34A of the slide bars 34 and 35,
34B and lower sliding portions 34A1, 3 of 35A, 35B
4B1 and 35A1, 35B1, key switch
Slide pins 37A, 37B, 37C and 3
7D is located. At this time, the key switch base 36 is fixed to the fixing pins 41 inserted in the sliding holes 36A and 36B.
A and 41B are used as guides to move downward.

As described above, the key switch base 36 can be positioned downward as shown in FIG. At this time, there is almost no gap between the key switch base 36 and the substrate 40, and even if the key top 19 is pressed, the sliding pin 19A immediately hits the membrane contact portion 22 and the key top 19 almost moves. There is no. Moreover, the stroke of the key switch is 1 mm or less, which is not a good operation feeling.

(B) Operation of pushing up the key top 19 to a depressable state to make the key switch unit usable state FIGS. 18 (A), 18 (B), 19 and 20 This will be described with reference to FIG. When the front cover 33 is pulled out to the left (see FIG. 18A), the slide bars 34 and 35 slide leftward because both sides of the substrate 40 are fitted in the slide grooves 34C and 35C. Operate. Therefore, the upper sliding portions 3 of the inclined holes 34A, 34B and 35A, 35B of the slide bars 34 and 35 are provided.
4A2, 34B2 and 35A2, 35B2 are provided with slide pins 37A, 37B, 37 of a key switch base 36.
C and 37D are located. At this time, the key switch base 36 moves upward with the fixing pins 41A and 41B inserted into the sliding holes 36A and 36B as guides.

For this reason, the key switch base 36 is not shown in FIG.
It can be positioned upward as shown in FIG. At this time, the key top 19 is pushed upward by the force of the cup rubber 44. Therefore, as shown in FIG.
When the top 19 is pressed down, the sliding pin 19A moves downward, pressing down the membrane contact 22 and closing the contact.

By forming the slide portion and the front housing of the keyboard device integrally, the front housing is pulled forward to increase the front height of the keyboard device. Of course, this front case can be used as an armrest for key operation.

FIG. 21 is an exploded perspective view of a keyboard device according to still another embodiment of the present invention when applied to a personal computer or the like. Reference numeral 51 denotes a lid having a plurality of push pins 51A on both sides. Reference numeral 52 denotes a through hole 52A and a key switch base engaging portion 52C in which the push pins 51A can be inserted when the lid is closed. An upper cover 53 having a plurality of sliding holes 52B (only one of which is shown) formed in a letter shape.
Is a key switch portion 54 and a through hole 52A for the upper cover.
The key switch base 55 has a through hole 53A provided so as to correspond to the support hole 53B and a support portion 53B provided so as to engage with the sliding hole 52B, and a key switch base 55 corresponds to the through hole 52A of the upper cover. The reinforcing plate 56 having the through hole 55A, the concave portion 55B and the spring portion 55C provided as described above, and the lower cover 56 having the left and right positioning pins 56A and the front and rear positioning pins 56B which can be moved up and down by a spring member such as a coil spring.

The operation of the apparatus shown in FIG. 21 will now be described with reference to FIGS. FIGS. 22 (A) and 23 (A) are detailed views of essential parts showing a cross section near the through hole 52A when the lid is opened and closed, and FIGS. 22 (B) and 23 (B).
Is a detailed view of a main part showing a cross section near the key switch portion 54 when the lid is opened and closed, and FIGS. 22C and 23C show cross sections near the key switch portion 54 when the lid is opened and closed. FIG. In the figure, when the cover 51 is closed, the push-down pin 51A provided on the cover 51 is inserted into the through hole 52A, so that the key switch base 5 is opened.
3 is pressed, and the left and right positioning pins 56A are pressed by inserting the tip 51A1 of the pressing pin into the through hole 53A provided in the key switch base 53.
Here, the key switch base 53 is pressed upward by the spring portion 55C, but its movement is suppressed by the pressing pin 51A. The support portion 53B provided on the front and rear end surfaces of the key switch base 53 is inserted into the concave portion 52B, and is located at the bottom portion 52C1 as shown in FIG. 22C. Next, a case where the user opens the lid 51 and uses it will be described. By opening the lid fixed in any way, the pressing pin 51A is lifted upward,
The key switch base 53 is lifted upward by the action of the spring portion 55C. At this time, key switch
Since the support portion 53B provided on the base 53 rises along the inner wall of the concave portion 52B of the upper cover 52, the key switch base 53 also rises while performing the same movement, and is provided on the lower cover 56. The left and right positioning pins 56A also move upward by a spring member or the like. When the lid is further opened to some extent, the push-down pin 51A is completely separated from the key switch base 53, and the key switch base 53 is moved to the spring portion 55C.
And further rises until the support portion 53B is located at the upper end 52B2 of the concave portion 52B. The left and right positioning pins 56A move upward, and the key switch base 5A is moved.
3 is inserted into the through hole 53A. As a result, the key switch base 53 is supported by the support portion 53B and the upper end 52B2 of the concave portion in the front-rear direction, and the position is determined by the left and right positioning pins 56A in the left-right direction.
The switch unit 53 is in a state equivalent to the fixed state, and
There is no problem even if the user uses the device.

FIG. 24 shows a state in which the tip 51A1 of the pressing pin 51A provided on the lid 51 is key switch base 53.
FIG. 11 is a view showing an operation of being inserted into the through hole 53A of the first embodiment. The tip portion 51A1 is provided with a key switch base 53 that can be raised along the inner wall of the concave portion 52B when the lid 51 is closed. It has a shape with an appropriate taper. Here, when the lid 51 is closed after use of the apparatus, first, the left and right positioning pins 56A are moved by the distal end 51A1 of the pressing pin 51A.
Is pressed (FIG. 24B). When the lid 51 is further closed, the taper portion of the distal end portion 51A1 comes into contact with the key switch base 53, and the key switch base 53 is moved rightward by the taper portion ( FIG.
(C)). By this movement, the support portion 53B provided on the key switch base 53 is detached from the upper end 52B2 of the concave portion 52B, and the key switch base 52 is depressed (FIG. 24D). When the lid 51 is opened, the key switch base 52 moves upward based on the reverse assumption.

[0041]

As described in detail above, according to the keyboard apparatus of the present invention, the key top can be pushed down to reduce the thickness of the keyboard during storage, and the keyboard can be reduced during use. −
Because the top can be lifted and used, the thickness of the device can be reduced during transportation and it is excellent to carry, and during use the key or key switch base can be lifted to secure a sufficient keystroke. There is an effect that excellent operability can be realized in a keyboard device of a portable information processing device.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a keyboard device according to the present invention.

FIG. 2 is a sectional view of a main part of FIG.

FIG. 3 is an exploded perspective view of a main part of FIG. 1;

FIG. 4 is a detailed perspective view showing the key top of FIG. 1;

FIG. 5 is a plan view showing a main part of the leaf spring sheet of FIG. 1;

FIG. 6 is a sectional view around a guide boss of FIG. 1;

FIG. 7 is a cross-sectional view showing a state where the key switch unit is stored.

FIG. 8 is a cross-sectional view showing a state when the key switch unit operates.

FIG. 9 is a perspective view showing another embodiment of the key top projection of FIG. 4;

FIG. 10 is a perspective view showing another embodiment of the keyboard device according to the present invention applied to a portable personal computer or the like.

FIG. 11 is a perspective view showing the leaf spring sheet of FIG. 10 and its sliding mechanism.

FIG. 12 is a perspective view, partially broken away, of a keyboard device according to another embodiment of the present invention applied to a personal computer or the like.

FIG. 13 is an exploded perspective view of FIG.

FIG. 14 is an exploded perspective view showing a relationship between a slide bar and a key switch base in FIG.

FIG. 15 is a partially detailed perspective view of FIG. 14;

FIG. 16 is a diagram showing a relationship between a slide bar and a key switch base in an unused state.

FIG. 17 is a cross-sectional view of the key switch unit in FIG.

FIG. 18 is a diagram showing a relationship between a slide bar and a key switch base in a use state.

FIG. 19 is a cross-sectional view of the key switch unit in FIG.

FIG. 20 is a sectional view showing an operation state of the key switch unit.

FIG. 21 is a perspective view of a keyboard device according to still another embodiment of the present invention applied to a personal computer or the like.

FIG. 22 is a detailed view of a main part in a state where a lid is closed.

FIG. 23 is a detailed view of a main part in a state where a lid is opened.

FIG. 24 is a view showing the operation when the tip of the push pin is inserted into the key switch base.

FIG. 25 is a sectional view showing a conventional keyboard device.

FIG. 26 is a perspective view showing a portable word processor provided with a conventional keyboard device.

FIG. 27 is a sectional view showing another conventional keyboard device.

FIG. 28 is an exploded perspective view of FIG. 27.

FIG. 29 is a cross-sectional view for explaining the operation in FIG. 27.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 19 Key top 20 Switch housing 21 Leaf spring sheet 22 Membrane contact part 26 Eccentric cam 28 Knob 30 Steel belt 34, 35 Slide bar 36 Key switch base 40 Substrate 44 Cup rubber 51A Pressing pin 52B Recess 53 Key switch -S 53B Support

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Satoshi Sato 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) G06F 3 / 02 310

Claims (7)

(57) [Claims] 1. A keyboard device used for input to an information processing apparatus, wherein a return spring and a contact pressing spring are integrally formed on a leaf spring sheet, and the leaf spring sheet is slid by a slide mechanism. -A keyboard device with a different top height. 2. The keyboard device according to claim 1, wherein said slide mechanism is interlocked with opening and closing of a lid of the device. 3. The keyboard device according to claim 1, wherein said slide mechanism is interlocked with the rotation of a knob provided on the device, and the height of the key top can be arbitrarily set according to the amount of rotation. 4. A keyboard device used for input to an information processing device, wherein a key switch base including a key top is provided with a slide bar.
A keyboard device which is moved up and down by a sliding operation to change the total height of the keyboard and the stroke amount. 5. A keyboard device used for input to an information processing apparatus, wherein a sheet member having a plurality of key contact portions is provided on the sheet member so as to correspond to the key contact portions. And a cover formed around the sheet member, and the height of the keyboard can be changed by moving the sheet member up and down. A keyboard device characterized by the above-mentioned. 6. A keyboard device used for input to an information processing device, comprising: a sheet member having a plurality of key contact portions; a slide member protruding from both ends of the sheet member; A plurality of key switch portions provided on the sheet member corresponding to the key contact portions, and a cover formed around the sheet member and having a sliding groove for engaging the slide member.
A keyboard device wherein the overall height of the keyboard can be changed by sliding the slide member up and down to move the sheet member up and down. 7. A keyboard device used for input to an information processing apparatus, wherein a sheet member having a plurality of key contact portions is provided on the sheet member so as to correspond to the key contact portions. A plurality of key switches, a cover formed around the sheet member, and one end of the cover rotatably provided.
The cover has a protruding pressing member and a spring for pressing the sheet member upward. The lid is opened and closed to move the sheet member up and down, thereby changing the keyboard height. A keyboard device characterized by being made possible.