JP2002169641A - Folding keyboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to turn from folded conditions to service conditions by one operation. SOLUTION: A keyboard is cut, at its nearly center position in its longitudinal direction and along adjoining key top border line, to form split keyboards 2, 3. A side edge of a slender platy shielding plate 11 is rotatably combined with the lower part of the cross section of the split keyboard 2 on one side. On both the end of the shielding plate 11, brackets 12 that are folded back and extended are provided. Pins 19 are opposed and provided on these brackets at the combining edge and its counter side. The pins 19 are slidably fitted in long grooves 16 provided on the back-and-forth outer side faces of another split keyboard 3. A pin A17 and a pin B18 provided in the back-and-forth outer side plates of respective split keyboards are loosely and slidably fitted in an oblong hole 14 of a movable link 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable keyboard provided with a shielding plate for dividing a keyboard so as to be foldable and for covering a cut keyboard cut surface exposed by folding.

[0002]

2. Description of the Related Art There has been proposed a foldable keyboard which is cut at a boundary line of an adjacent key top at a substantially central portion of the keyboard so that the keyboard can be folded and has a compact structure when carried. In this type of foldable keyboard, when the keyboard is folded, the divided cut surface of the divided keyboard that is exposed is covered with a shielding plate, for example, as disclosed in Japanese Patent Application Publication No. 2000-56904. . The foldable keyboard disclosed in this publication will be briefly described with reference to FIGS. FIG. 1A shows a state in which the keyboard 1 is divided into divided keyboards 2 and 3 at the center in the longitudinal direction, and the divided keyboards 2 and 3 are folded with their key top sides inside each other. These split keyboards 2 and 3 are connected to a shield plate 71 by hinges 72 and 73. When the split keyboards 2 and 3 are folded with the key tops shown in FIG. By opening the opposite side, FIG.
(C) and (d) are sequentially used.

As shown in FIG. 2, this conventional foldable keyboard is composed of keyboards 2 and 3 which are divided by a border line of adjacent key tops at substantially the center of the keyboard 1 in the longitudinal direction.
On the other hand, the divided keyboard 3 has its cut edge rotatably connected to one side edge of a rectangular shield plate 71 by a hinge 73, and one side of the rectangular support plate 81 hinges to the other side edge of the shield plate 71. At 72, it is rotatably connected. Support plate 8
A pair of ridges 82 are formed on both side edges of the keyboard 1 in parallel with the longitudinal direction of the keyboard 1, and guide grooves 83 (FIG. 3) are provided on the bottom surfaces of the front and rear side edges of the divided keyboard 2. Are slidably loosely fitted on the support plate 81, the guide ridges 82 and the outer edges thereof. In this way, the split keyboard 2 is supported on the guide ridges 82 of the support plate 81 along the longitudinal direction of the keyboard 1 so as to be able to move forward and backward until the split keyboard 2 comes into contact with the split keyboard 3 facing the split keyboard.

A lock lever 86 is provided with a pin 87 on the outer surface near the abutting surface of the split keyboard 3 with the split keyboard 2.
The return spring 88 urges the tip 89 of the divided keyboard 2 side inward by the return spring 88. An inclined claw 89a is formed on the inside of the distal end portion 89 of the lock lever 86. When the split keyboards 2 and 3 are opened as shown in FIGS.
When the divided keyboard 2 is moved in the direction of the arrow, that is, toward the divided keyboard 3, the divided keyboard 2 comes into contact with the cut surface of the divided keyboard 3 and the guide groove 8 is formed.
3 engages with the guide ridge 85, and the claw 89 a of the tip end portion 89 of the lock lever 86 engages with a locking concave portion 84 formed on the side surface of the divided keyboard 2, so that the divided keyboards 2 and 3 are integrated. You.

When the divided keyboards 2 and 3 are folded as shown in FIG. 1A, the end opposite to the connection end thereof is opened in the direction of the arrow to separate the divided keyboards 2 and 3 from each other. After the state shown in FIG. 1B, the horizontal state shown in FIG. In this state, the divided keyboards 2 and 3 are moved in the direction of the arrow so as to approach each other, and the cut surfaces of the divided keyboards 2 and 3 are brought into contact with each other. By 75, the divided keyboards 2 and 3 are fixed to each other on the same plane, and become in use as shown in FIG.

[0006]

In this conventional foldable keyboard, the shielding plate 71 which covers the cut surfaces of the divided keyboards 2 and 3 exposed in the folded state shown in FIG. In order to enable this, not only a hinge 72 that allows the rectangular support plate 81 and the shielding plate 71 to be freely rotatable, but also a mechanism that slides the divided keyboard 2 along the guide ridges 82 is required. When the state is changed from the use state, that is, at the time of the opening and closing operation, two operations of the rotating operation and the sliding operation have to be performed, and the handling is not good. Further, such a configuration for performing two operations has a disadvantage that it is easily broken mechanically.

An object of the present invention is to provide a foldable keyboard which can perform opening and closing operations in one operation, and thus has a strong mechanical structure.

[0008]

According to the present invention, a keyboard is provided with one side edge of an elongated shielding plate below one cut surface of two divided keyboards divided by an adjacent key top boundary line at a substantially central portion. It is rotatably mounted, brackets are erected on the same side from both end edges of the shielding plate, and slide pins are erected so as to face these brackets on the other side edge of the shielding plate, and the other divided keyboard These slide pins are slidably fitted in long grooves provided on both outer surfaces on the cut surface side. A moving link provided with a long hole is provided, and a pin provided on each side plate on the cut surface side of each divided keyboard is slidably fitted in the long hole.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the foldable keyboard according to the present invention will be described. FIG. 4A is a plan view of the foldable keyboard in a use state. The keyboard 1 is cut along a dividing line 5 at an adjacent key top boundary line substantially at the center in the length direction (left-right direction),
And a divided keyboard 3, and these divided keyboards 2 and 3 are provided with a hinge mechanism 1 provided on the keyboard cutting portion side.
It is foldably connected at 0. FIG. 4B is a front view showing a state in which the divided keyboards 2 and 3 are folded with the key tops 4 inside. FIG. 4B is a diagram for making the hinge mechanism diagram easy to understand, and is different from the actual outer shape. A connector 6 for connecting to an external device is attached to one end of the back of the keyboard 1.

FIG. 5 shows the configuration of a part of the keyboard and the hinge mechanism 10 in each state of the foldable keyboard of the present invention from the folded (stored) state to the used (open) state. The hinge mechanism 10 includes a coupling pin A17 provided on a side plate on the cut surface side of one divided keyboard 2, a coupling pin B18 and a long groove 16 provided on a side plate on the cut surface side of the other divided keyboard 3,
Shielding plate 11, bracket 12 provided on shielding plate 11, slide pin 19 provided on bracket 12, moving link 1
3, the pin shaft 15 and the like.

FIG. 6A is a simplified perspective view showing a state in which the shielding plate 11 is attached to one of the divided keyboards 2. The shielding plate 11 has an elongated plate shape and is formed as, for example, a molded article of ABS resin. The longitudinal direction of the shielding plate 11 substantially has a length between the front surface and the rear surface of the cut surface of the keyboard 1, and the width direction has a length substantially equal to the sum of the thicknesses of the cut surfaces of the divided keyboards 2 and 3. are doing. As shown in FIGS. 5 (a) and 6 (b), the shielding plate 11 is in a state where the divided keyboards 2 and 3 are folded and opposed to both cut surfaces of the divided keyboards 2 and 3, thereby closing the inside. 5A, one side edge of the shielding plate 11 is rotatably coupled to a lower portion of the divided surface of the divided keyboard 2. In FIG. For example, FIG.
As shown in an exploded view of FIG. 6 (b), an elongated notch 131 is formed on the cut surface of the bottom plate 2a of the divided keyboard 2 so that both ends thereof slightly protrude. Except for both ends, the connection-side edge has an elongated connection edge 132 protruding therefrom.
32 are positioned so as to substantially fit into the notches 131, and through holes 133 are respectively formed in the protrusions formed by the notches 131 on the front and rear side plates of the divided keyboard 2,
Shaft holes 134 are respectively formed on the front and rear surfaces of the connecting edge 132 so as to face the through holes 133, and the pin shaft 15 is inserted and held in the through holes 133, and the protruding end thereof is formed in the shaft holes 134.
And the shielding plate 11 is rotatably held by the divided keyboard 2.

The brackets 12 are integrally bent at the same side from both ends in the longitudinal direction of the shielding plate 11 so as to face each other, and on the inner surfaces of the brackets 12 near the side edge opposite to the connecting edge 132 of the shielding plate 11. Slide pin 19
Are set to face each other. Long grooves 16 extending in the left-right direction (longitudinal direction of the keyboard 1) are formed on the outer surfaces of both side plates on the cut surface side of the divided keyboard 3, and slide pins 19 are slidably engaged with these long grooves 16, respectively. The connecting pins A17 and B18 provided in the side plates of the split keyboards 2 and 3 are inserted into the long holes (lightening portions) 14 of the moving link 13 provided in these side plates.
The moving link 13 is slidable.

The case of the split keyboard 2 is disassembled, and only a part of the case is disassembled, for example, as shown in FIG. 7 (a), and a flange 2a1 formed around three sides of the rectangular dish-shaped bottom 2a. It consists of a U-shaped upper part 2b arranged above, which are fixed to each other by, for example, screws. The part shown in FIG. 7A is a part on the cut surface side of the divided keyboard 2, and a link groove 101 a is formed in front of the flange 2 a 1 in the vertical direction in contact with the cut surface. Upper part 2b
The link groove 101b connected to the link groove 101a is formed until it reaches the outer surface, and the arrow 7 in FIG.
As shown in FIG. 7B, the inner surface of the formation of the link groove 101b is short in a direction perpendicular to the link groove 101b as shown in FIG. 7B (a part of the front wall is removed so that the inside can be seen). A pad pin holding groove 102 is formed, and one half of the moving link 13 is arranged in the link groove 101a in a state where the connecting pin A17 is inserted into the long hole 14 of the moving link 13 so that the connecting pin A
17 are accommodated in the pin holding groove 102, and the dish-shaped bottom portion 2a and the U-shaped upper portion 2b are fixed to each other in this state. Both ends of the pin holding groove 102 are closed by the protruding surface of the inner surface where the link groove 101a is formed, and the coupling pin A17 housed in the pin holding groove 102 is held in the side plate of the split keyboard 2.

Although not shown in the drawing, a link groove 101a, 10
1b and a link groove 103 similar to the pin holding groove 102
a, 103b (103a is not shown;
(Shown in (a)) and a pin holding groove 104 (not shown) are formed, the other half of the moving link 13 through which the connecting pin B18 is inserted is disposed in the link grooves 103a and 103b, and the connecting pin B18 is The coupling pin B18 is held in the holding groove 104 and is held in the side plate of the divided keyboard 3. The length of the moving link 13 is smaller than the sum of the thicknesses of the divided keyboards 2 and 3, and the width of the elongated hole 14 on the surface on which the slot 14 is formed is about １ ／ of the thickness of each of the divided keyboards 2 and 3. The length of the long hole 14 is determined by the coupling pin A1 when the keyboard is used.
7 and slightly longer than the length between the outsides of the pins B18.
The width of 4 is slightly larger than the outer diameter of the pins A17 and B18.

The moving link 13 and the connecting pin A17, the pin B
Reference numeral 18 is also provided at a rear portion near the cut surface of the divided keyboards 2 and 3. The corresponding link grooves 105b, 106b
Is shown in FIG. Next, each state of the keyboard from the folded (stored) state to the use state (open state) will be described with reference to FIG. In FIG. 5, the relationship among the shield plate 11, the moving link 13, the pins A17, B18, 19, and the long groove 16 in each state is shown by a solid line so that the relation can be easily understood.

(A) In a horizontally folded state, the divided keyboards 2 and 3 are folded with their surfaces on the key top 4 side facing each other. The shielding plate 11 covers the cut surfaces of the divided keyboards 2 and 3 so as to be perpendicular to the bottom surface of the divided keyboard 2, and the pin C19 provided on the bracket 12 is located at a position close to the cut surface of the long groove 16 of the divided keyboard 3. It is in. The moving link 13 is guided by the pins A17 and B18, and is perpendicular to the bottom surface of the divided keyboard 2. Figure 6 (c)
As shown in the figure, the cut surfaces of the divided keyboards 2 and 3 and the connecting portions thereof are almost completely covered by the shielding plate 11 and the bracket 12. In order to prevent the bracket 12 from protruding from the side of the keyboard and from hindering the rotation, a shallow recess 110,
111 are formed.

(B) When the end opposite to the cut surface of the divided keyboard 3 is lifted from the folded state (a), the divided keyboard 3 rotates about the slide pin 19 and both ends of the elongated hole 14 of the moving link 13. Pin A17, Pin B
18 contacts. (C) When the end of the split keyboard 3 is further lifted and rotated, a pin C19 provided on the bracket 12 of the shielding plate 11 is provided.
Slides in the long groove 16 of the divided keyboard 3 and moves in a direction away from the cut surface of the keyboard, and the moving link 13 rotates clockwise about the pin A17 in the figure so that the divided keyboard 3 is It will be almost perpendicular to this.

(D) When the split keyboard 3 is rotated from its vertical state so as to be further opened with respect to the split keyboard 2, the split keyboards 2 and 3 are connected to the pins A17 and B1.
8 is regulated by the long hole 14 of the moving link 13 so that the slide pin 19 provided on the bracket 12 of the shielding plate 11 further moves along the long groove 16 in the direction opposite to the cut surface of the keyboard. (E) If the divided keyboard 2 is rotated to open further to make the divided keyboard 2 and its keyboard surface flush,
The slide pin C19 provided on the bracket of the shielding plate 11 further moves along the long groove 16 and moves to the end opposite to the keyboard cut surface. In this state, pin A17 and pin B
18 are located at both ends of the long hole 14 of the moving link 13, and the end face of the connection edge 132 of the shielding plate 11 is in contact with the notch face of the notch 131, and the divided keyboard 3 is further turned clockwise in the figure. It cannot be moved, that is, the split keyboards 2 and 3 have their key tops 4 held in the same plane.

Next, another example of the hinge mechanism will be described. FIG. 8 shows each state of the hinge mechanism from the folded state to the use state, and the configuration of the hinge mechanism in this case. Also in this figure, the shielding plate 11, the bracket 12, the slide pin 19,
These are indicated by solid lines so that the relationship between the moving link 23 and the coupling pins 27 and 30 can be easily understood. Actually, the connecting pins 27, 30 and the moving link 23 are arranged in the side plate of the keyboard as in the embodiment described above. FIG. 9 (a)
The moving link 23 used in this hinge mechanism and the cross section D
3 shows a coupling pin 27 having a shape.

The hinge mechanism described with reference to FIG. 5 is different from the hinge mechanism in that the shape of the elongated hole (lightened portion) of the moving link, the cross-sectional shape of the connecting pin A, and that the connecting pin B is rotatably inserted into the pin hole of the moving link. Are different. As shown in FIG.
Has a D-shaped cross section, and the long hole 24 of the moving link 23 is composed of a narrow portion 25 that constitutes most of the long hole, and a circular portion 26 formed at one end of the moving link 23. The width of the narrow portion 25 is slightly larger than the short diameter d1 of the D-shaped cross section of the coupling pin 27, and the diameter of the circular portion 26 is slightly larger than the long diameter d2 of the D-shaped. The coupling pin 30 provided on the divided keyboard 3 is inserted into a pin hole 28 provided at the other end of the moving link 23, and the moving link 23 is supported by the pin 30.

(A) In the horizontally folded state, the divided keyboards 2 and 3 are folded with their key tops 4 facing each other. The shielding plate 11 covers the cut surface of the divided keyboard and is substantially vertical, and the pins 19 provided on the bracket 12
Is located near the cut surface of the keyboard. The moving link 23 is guided by the pin 27 having a D-shaped section and is in a vertical state. At this time, the D-shaped pin 27 is located at the end of the narrow portion 25 of the moving link 23 on the pin hole 28 side. (B) When the end of the divided keyboard 3 opposite to the keyboard cut surface is lifted from the stored state, the divided keyboard 3 rotates around the pin 19, and the D-shaped pin 27 in cross section becomes a circular portion of the long hole of the moving link. Contact 26.

(C) When the end of the divided keyboard 3 is further lifted and turned, the pin C19 provided on the bracket 12 of the shielding plate 11 slides in the long groove 16 of the divided keyboard 3 and the moving link 23 is in the cross section D. The keyboard 3 rotates about the shape pin 27, and the divided keyboard 3 becomes substantially vertical. (D) When the split keyboard 3 is rotated from the vertical state so as to be further opened with respect to the split keyboard 2, the split keyboards 2 and 3 are connected to the connecting pins 27, the pins 30 and the moving links 23.
The pin 19 provided on the bracket of the shielding plate 11 moves further away from the cut surface of the keyboard along the long groove 16 with the distance between the pin holes 28 and the long hole 24 being regulated.

(E) Rotate the split keyboard 3 so as to open further with respect to the split keyboard 2 to
When the top surfaces of both key tops of the split keyboard 3 are flush with each other, the pin 19 provided on the bracket of the shielding plate 11
To move to the end opposite to the cut surface of the keyboard. In this state, as in the previous embodiment,
The restriction by the moving link 23 and the pins 27 and 30 and the end surface of the connection edge 132 of the shielding plate 11 and the notch surface of the notch 131 are in contact with each other, and the divided keyboard 3 is further rotated clockwise in the figure. And the split keyboards 2 and 3 are held on the same plane.

The hinge mechanism uses a D-shaped pin 27 in cross section, and the circular portion 26 is provided in the elongated hole. 27 is fitted with a circular portion 26,
The opening / closing operation draws a fixed trajectory centered on, and smooth opening / closing becomes possible. FIG. 9B shows a modification of the moving link. The moving link 33 is provided in the pin hole 28.
And a long hole 34 having a constant width is provided.
Using the moving link 33, the moving links 13, 23 are used.
It will be easily understood that the same operation as can be performed.

As described above, according to the present invention, in the foldable keyboard, from the folded state to the use state, the use state can be set by a single operation of lifting and rotating one end of one of the divided keyboards. Therefore, the operation is easy, and the mechanism that can be performed by a single operation in this way can be more mechanically stronger than the case that the operation is performed by a plurality of operations. Further, in the folded state, the cut surfaces of the divided keyboards 2 and 3 can be covered with the shielding plate 11, so that invasion of dust, water droplets and the like can be prevented, and since the divided portion is not exposed, the internal mechanical protection is prevented. Can be.

Further, the moving link and the connecting pins 17, 18
Alternatively, the provision of the 27 and 28 allows the split keyboard to be opened and closed smoothly, and furthermore, eliminates the gap between the two split keyboards in use.
Next, the lock mechanism of the two-part keyboard in the use state will be described. In the above-described use state of the foldable keyboard (FIGS. 5 (e) and 8 (e)), if careless force acts on the split keyboards 2, 3, the split keyboards 2, 3 may be bent. There is.

FIG. 10 shows a lock mechanism in the use state (open state) of the foldable keyboard. The lock mechanism 40 is provided on each of the keyboard cut surface sides of the front side plate and the rear side plate of the keyboard 1, and a horizontally long window 42 is provided on an outer surface on the cut surface side of the divided keyboard 3. Projected to The operation element 41 is fixed to the operation plate 43, and the operation plate 43 is housed so as to be slidable left and right by a guide groove 45 formed in the front and rear side plates. When the operation element 41 is moved to the divided keyboard 2 side and the operation plate 43 is slid, an engagement hole 44 through which the operation plate 43 enters and exits is formed in a cut surface of the divided keyboard 2.

When the operation element 41 is slid along the window 42 in the direction of the arrow 47 (rightward) from the unlocked state shown in FIG. 10B to the side of the divided keyboard 2, the operation section 43 also moves in the direction of the arrow 47. The keyboard is inserted into and engaged with the engagement hole 44 provided in the split keyboard 2, and the state shown in FIG. In this state, the split keyboards 2 and 3 are held in the same plane by the operation plate 43 and the engagement hole 44 even when an external force for bending them is applied between the split keyboards 2 and 3. 2 and 3 as the lock mechanism.
The engagement mechanism 75 shown therein can also be used.

By providing the lock mechanism in this way, it is possible to prevent the foldable keyboard from being bent in use. Next, a connection configuration between the divided keyboards will be described. FIG. 11 (a) shows a partial plan view and a folded state of FIG. 11 (b) to a state of use of FIG. 11 (f) showing each state of the connection configuration. The flexible printed circuit board (FPCB) for each of the key switches of the divided keyboards 2 and 3, in this example, the divided keyboard 3 is converged, and the connecting flexible printed circuit board 50 is connected.
Thus, the keyboard is connected to the flexible wiring board for the divided keyboard 2.

A storage section 51 is provided in the vicinity of the cut surface of the keyboard of one of the divided keyboards 2, and a connecting flexible wiring board (FPCB) 50 is stored in a folded state. The extension of the folded connecting FPCB 50 is divided keyboard 2,
3 and is connected to the flexible wiring board of the other divided keyboard 3 by being guided by the respective arc portions 53 provided on the respective U-shaped upper portions of the cut surfaces of the respective keyboards. When the end of the split keyboard 3 is lifted and turned, the FPCB 50 is
The portion corresponding to the portion between the three portions is gradually stored in the storage portion 51, that is, the length in the folded length direction increases, and the connecting FPCB 50 approaches the inner wall surface 51a of the storage portion 51, and the use state ( In FIG. 11 (f), a portion corresponding to the portion between the arc portions 53 of the connecting FPCB 50 is stored in the storage portion 51, and becomes a plane between the divided keyboards 2 and 3 of the connecting FPCB 50 that is parallel to these. .

In this way, it is possible to prevent a failure due to the slack of the connecting FPCB 50 generated when the foldable keyboard is opened and closed, and the occurrence of tension in the connecting FPCB 50. Note that the above description has been made with respect to the operation from the folded state to the use state, but the operation from the use state to the folded state can also be performed by the reverse operation. The storage portions 51 are provided on both of the divided keyboards 2 and 3, and both storage portions 51 are provided.
The connecting FPCB 50 may be stored separately. In the above description, the divided keyboards 2 and 3 may be replaced with each other, so that the shielding plate 11 can be freely moved by the pin shaft 15 on the divided keyboard 3 side. In the above description, the long groove 16 is formed on the outer surface of the side plate, but may be formed on the inner surface. In this case, the slide pin 19 is provided outside the bracket 12.

[0032]

The present invention has the following effects because it is configured as described above. (1) The mutual operation between the folded state and the use state of the split keyboard can be performed by a single operation, and the cut surface of the split keyboard can be covered with the shielding plate in the folded state. (2) Since the moving keyboard is provided, the mutual operation between the folded state and the used state of the divided keyboard can be smoothly performed.

[Brief description of the drawings]

1A is a side view for explaining a folded state of the conventional foldable keyboard shown in FIG. 1, FIG.
(C) is a side view for explaining each state halfway from the folded state to the use state, and (d) is a side view for explaining the use state.

FIG. 2 is a plan view showing a configuration of a division portion of a conventional foldable keyboard.

FIG. 3 is a perspective view showing an engagement mechanism used in the conventional foldable keyboard shown in FIG.

FIG. 4A is a front view of a use state of the foldable keyboard according to the embodiment of the present invention, and FIG. 4B is a side view highlighting a hinge mechanism in a folded state.

5A is a side view for explaining the folded state of the embodiment shown in FIG. 4A, and FIGS. 5B, 5C, and 5D. FIG.
4A is a side view for explaining each state during the operation from the folded state to the use state in the embodiment shown in FIG. 4A, and FIG. 4E shows the use state of the embodiment in FIG. FIG.

6A is a perspective view for explaining a connection state between the divided keyboard 2 and the shielding plate 11 in the embodiment shown in FIG. 4A, FIG. 6B is an exploded perspective view of FIG. FIG. 5C is a perspective view illustrating a state in which the shielding plate 11 in the folded state in the embodiment of FIG.

7 (a) is an exploded perspective view for explaining an example in which a moving link 13 and a combination pin A17 are provided in a side plate of the divided keyboard 2, and FIG. 7 (b) is an arrow 7 (b) in FIG. 7 (a). It is the perspective view which removed some of the parts seen more.

FIG. 8A is a side view for explaining a folded state of a foldable keyboard according to another embodiment of the present invention, and FIGS.
(C) and (d) are side views for explaining each state from the state of FIG. 8 (a) to the use state, and (e) is a side view for explaining the use state.

FIG. 9A is a front view showing another example of the moving link used in the foldable keyboard of the present invention, and FIG. 9B is a front view showing still another example.

10A is a plan view for explaining a lock mechanism in the foldable keyboard of the present invention, FIG. 10B is a front view in an unlocked state for explaining the lock mechanism, and FIG. FIG. 10B is a diagram showing a cross section taken along line 10c in FIG. 10B, and FIG. 10D is a front view in a locked state for explaining the lock mechanism.

11A is a plan view for explaining an electrical connection configuration between split keyboards of the present invention, FIG. 11B is a side view for explaining an electrical connection configuration of the keyboard in a folded state, and FIG. ), (D), and (e) are side views for explaining a change state of the electrical connection configuration in each state from the folded state to the use state, and (f) is an electrical connection configuration in the use state. It is a side view for explaining.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Keyboard 2, 3 divided keyboard 10 Hinge mechanism 11 Shielding plate 12 Bracket 13 Moving link 14 Slot 15 Pin shaft 16 Slot 17 Coupling pin A 18 Coupling pin B 19 Slide pin 40 Lock mechanism 41 Operator 42 Window 43 Operation board 44 Section Aperture 50 Connecting FPCB 51 Housing

Claims (8)

[Claims] 1. A foldable keyboard having the following configuration. Two divided keyboards formed by cutting the keyboard at the borderline of adjacent key tops at substantially the center position in the longitudinal direction, an elongated plate-shaped shielding plate, and one side edge of the shielding plate having one divided edge The bracket is rotatably mounted on the bottom of the cut surface, and two brackets are provided substantially opposite to each other at both ends of the shield plate, and a pair of slide pins are provided on the other side edge side of the shield plate of these brackets, These slide pins are slidably fitted in long grooves formed on both side surfaces on the cut surface side of the other divided keyboard, and a pair of coupling pins provided on both side plates on the cut surface side of each of the divided keyboards, A moving link having a long hole extended in a longitudinal direction, wherein the pair of connecting pins are slidably and loosely fitted; 2. The foldable keyboard according to claim 1, wherein when the split keyboard is opened from a folded state, the split keyboard rotates about the slide pin, and the pair of coupling pins are located at both ends of the elongated hole. The mounting position of the coupling pin and the length of the long hole are selected so that the slide pin slides and the shield plate and the moving link rotate. 3. A foldable keyboard having the following configuration. Two divided keyboards formed by cutting the keyboard at the borderline of adjacent key tops at substantially the center position in the longitudinal direction, an elongated plate-shaped shielding plate, and one side edge of the shielding plate having one divided edge The bracket is rotatably attached to the bottom of the cut surface, and two brackets are provided substantially opposite to each other at both ends of the shielding plate, and a pair of slide pins are provided on the other side edge side of the shielding plate of these brackets, These slide pins are slidably fitted in long grooves formed on both side surfaces on the cut surface side of the other divided keyboard, and a pair of pins provided on pin holes on both side plates on the cut surface side of the other divided keyboard. A long hole extending in the longitudinal direction and a pin hole at one end, and one of the pair of connection pins is slidably and loosely fitted into the long hole, and the pair of connection holes is fitted into the pin hole. Insert the other pin It has been a moving link that is pivotally supported on this. 4. The foldable keyboard according to claim 3, wherein the long hole of the moving link has a circular portion opposite to the pin hole, and has a narrow portion other than the pin hole. The cross section of the coupling pin to be loosely fitted is D-shaped, the minor axis of which is approximately equal to the width of the narrow portion, the major axis is approximately equal to the diameter of the circular portion, and the D-shaped flat portion is the keyboard thickness. It is almost parallel to the direction. 5. The foldable keyboard according to claim 3, wherein when the split keyboard is opened from a folded state, the split keyboard rotates about the slide pin, and the one connecting pin is formed in the pin hole of the elongated hole. The mounting position of the coupling pin and the length of the elongated hole are selected so that the slide pin slides and the shield plate and the moving link rotate. 6. The foldable keyboard according to claim 1, wherein said two-part keyboard is held in a state where the cut surfaces of said two keyboards are in contact with each other, and is released from said holding state. Is provided. 7. The foldable keyboard according to claim 1, wherein the connecting flexible wiring board for connecting the wiring board to each key switch of the split keyboard is folded and stored. A storage section is provided at least near the cut surface of one of the divided keyboards. 8. The foldable keyboard according to claim 1, wherein a link groove is formed by a cut surface on each of the side plates on the cut surface side, and the moving link is formed in the link groove. Are rotatably accommodated.