WO2017002866A1

WO2017002866A1 - Input device for tablet terminal

Info

Publication number: WO2017002866A1
Application number: PCT/JP2016/069302
Authority: WO
Inventors: 淳宮嶋
Original assignee: 株式会社Ａｍコンサルティング
Priority date: 2015-06-29
Filing date: 2016-06-29
Publication date: 2017-01-05

Abstract

The present invention addresses the problem of providing an input device for a tablet terminal with which the user of the tablet terminal can comfortably perform key operations while holding the tablet terminal. This input device A for a tablet terminal T, which transmits signals to the tablet terminal T, has a configuration characterized by being equipped with: a main body part 1 to which the tablet terminal T can be removably attached; first input parts 11 provided on a liquid crystal screen T1 side of the tablet terminal T; and second input parts 21 provided on the back surface side of the tablet terminal T.

Description

Input device for tablet terminals

The present invention relates to an input device for a tablet terminal that transmits a signal to the tablet terminal.

In recent years, tablet terminals equipped with a touch panel on a display portion such as a liquid crystal screen and operated by touching the touch panel with a finger or a pen are widely used. In this tablet terminal, a physical keyboard (hardware keyboard) is not permanently installed, and a key input operation can be performed by touching a virtual keyboard (software keyboard) displayed on the touch panel.

As described above, the tablet terminal is extremely easy to carry because it is not necessary to provide a physical keyboard. In addition, unlike a conventional personal computer that uses a keyboard on a flat surface such as a desk to perform key input operations, it can be operated with the other hand while holding the tablet terminal with one hand.

On the other hand, it is sometimes preferable to use an input device such as a physical keyboard when inputting a large amount of characters or performing key input at high speed. At that time, a key input operation to the tablet terminal is performed using a physical keyboard capable of communicating with the tablet terminal. However, in such a case, it is necessary to carry a physical keyboard separately from the tablet terminal, and there is a problem that portability is impaired.

With respect to the above problems, Patent Document 1 discloses that when it is desired to use an input device, a keyboard is connected to one end of a tablet terminal, and when not in use, the usability as a tablet is not reduced. The technique of the input device fixed to the back surface of a tablet terminal is described. Thus, portability can be improved by comprising so that an input device can be carried on the back of a tablet terminal.

JP 2014-235703 A

By the way, in order to further demonstrate the excellent portability of the tablet terminal, it is desirable that the key input operation can be performed comfortably while being carried. However, in the tablet terminal, as described above, a method of touch input to the virtual keyboard with one hand is adopted, and comfortable key input cannot be performed when it is desired to input a large amount of characters at high speed.

In addition, when using an input device as described in Patent Document 1, it is necessary to install the input device or tablet terminal on a flat surface such as a desk and perform key input using both hands. Therefore, when it cannot be installed on a flat surface (for example, standing state), comfortable key input cannot be performed. Thus, the conventional input device was not supposed to perform key input while carrying a tablet terminal or the like.

Therefore, the present inventor arranges an input unit (hereinafter also referred to as a key) for performing key input at a position where the user holds the tablet terminal, and optimizes the key arrangement so that the user can hold the tablet terminal. Even if there was, we thought that comfortable key input operation could be performed.

In view of the actual situation, the present invention has an object to provide an input device for a tablet terminal that allows a user to comfortably perform a key input operation while holding the tablet terminal.

In order to solve the above problems, an input device for a tablet terminal according to the present invention is an input device for a tablet terminal that transmits a signal to the tablet terminal, and a main body part to which the tablet terminal can be attached and detached, and a screen of the tablet terminal A first input unit provided on the side of the tablet terminal and a second input unit provided on the back side of the tablet terminal.

As described above, by providing the first input unit on the screen side of the tablet terminal and the second input unit on the back side, respectively, when the tablet terminal is gripped, the user's finger is connected to the first input unit. A comfortable key input operation can be performed in contact with both the second input unit.

In a preferred embodiment of the present invention, the first input part is provided around the edge of the main body part, and the second input part is provided around the back side of the first input part. It is characterized by that.
Thus, by arranging the first input unit around the edge of the main body and the second input unit around the back side of the first input unit, the user can place all the input units on the periphery. It is possible to easily touch and perform key input operations.

In a preferred embodiment of the present invention, when the main body is gripped by a thumb and four fingers other than the thumb, the first input unit is disposed at a position where the thumb can come into contact with the second input. The input unit is arranged at a position where four fingers other than the thumb can come into contact with each other.
With such a configuration, a key input operation can be performed with ten fingers as in the case of using a normal keyboard.

In a preferred embodiment of the present invention, the tablet device further includes a cover portion that can be attached to the screen side and the back side, and the second input portion is provided in the cover portion.
With such a configuration, when the tablet terminal is not used, the liquid crystal screen can be protected by arranging the cover portion on the screen side of the tablet terminal.

In a preferred aspect of the present invention, the cover portion is provided with an exposed portion that exposes the first input portion.
By adopting such a configuration, it is possible to prevent the cover unit from keying the first input unit when the cover unit is closed.

In the preferable form of this invention, the said main-body part is formed in the flat form which has the thickness which can accommodate the said tablet terminal, The front part provided with the opening window which exposes the screen of the said tablet terminal, The said tablet A back surface portion that supports the terminal, and the second input portion is provided on the back surface portion.
Thus, the strength of the main body portion can be improved by configuring the main body portion to have a front surface portion and a back surface portion, and the back surface portion supporting the tablet terminal.

In a preferred embodiment of the present invention, the back surface portion is provided with a support portion for supporting the main body portion.
Thus, when the support part is provided in the back surface part, when using a tablet terminal on a desk, it can fix to a user's preferable angle.

In a preferred embodiment of the present invention, the second input unit is constituted by a mechanical button having a height.
In this way, the second input unit is composed of a mechanical button having a height, so that the key position can be confirmed by touch, and the user can perceive the key position without looking at the back. can do.

In a preferred aspect of the present invention, the key pressure of the second input unit is set lower than the key pressure of the first input unit.
Thus, by setting the key pressure of the second input unit to be lower than the key pressure of the first input unit, an input device that allows the user to easily perform key input can be obtained. The key pressure here means a pressure at which the key reacts when the key is pressed.

In a preferred aspect of the present invention, the key arrangement of the second input unit is arranged such that the key arranged in the downward direction of the tablet terminal is located closer to the center of the tablet terminal.
By adopting such a key arrangement, it is possible to provide an input device that allows the user to easily perform key input.

The present invention can provide an input device for a tablet terminal that allows a user to comfortably perform a key input operation while holding the tablet terminal.

It is an external appearance perspective view of the input device for tablet terminals concerning Embodiment 1 of the present invention. It is a perspective view which shows a mode that a tablet terminal is attached to the input device for tablet terminals which concerns on Embodiment 1 of this invention. The mode which attaches the cover part of the input device for tablet terminals which concerns on Embodiment 1 of this invention to the screen side of a tablet terminal is shown, (a) is a perspective view which shows a mode that a cover part is rotated to the screen side of a tablet terminal. Yes, (b) is a front view after rotation. The mode which attaches the cover part of the input device for tablet terminals which concerns on Embodiment 1 of this invention to the back side of a tablet terminal is shown, (a) is a perspective view which shows a mode that a cover part is rotated to the back side of a tablet terminal. And (b) is a rear view after rotation. It is a figure which shows the use condition of the input device for tablet terminals which concerns on Embodiment 1 of this invention. The use condition of the input device for tablet terminals concerning Embodiment 1 of the present invention is shown, (a) is a perspective view of the front side, and (b) is a perspective view of the back side. The external view of the input device for tablet terminals which concerns on Embodiment 2 of this invention is shown, (a) is a front view, (b) is a rear view. It is a perspective view which shows a mode that a tablet terminal is attached to the input device for tablet terminals which concerns on Embodiment 2 of this invention. It is a perspective view which shows the use condition of the support part of the input device for tablet terminals concerning Embodiment 2 of this invention.

Hereinafter, the

preferred embodiment

1 or 2 shown in the drawings will be described in detail. The technical scope of the present invention is not limited to the embodiments shown in the accompanying drawings, and can be appropriately changed within the scope described in the claims.

<Embodiment 1>
1 and 2 are perspective views showing an input device A for a tablet terminal according to the first embodiment. This input device A for tablet terminals connects the main body part 1 to / from which the tablet terminal T can be attached / detached, the cover part 2 to be brought into close contact with the front side and the rear side of the tablet terminal T, and the main body part 1 and the cover part 2 Connecting portion 3 to be connected.

The main body 1 includes a first input unit 11 positioned on the front side of the tablet terminal T, an insertion unit 12 into which the tablet terminal T is inserted, and a through hole 13 that exposes the camera T3 and the home button T4 of the tablet terminal T. And have.

Further, as shown in FIG. 2, the main body 1 is formed in a concave shape when viewed from the front, and exposes the liquid crystal screen T1 of the tablet terminal T so as to cover two opposing edges T2. It is configured.

The first input unit 11 is provided with a preferable key for operating with the thumb when the tablet terminal input device A is held with both hands. For example, it is desirable to arrange a cross key and a pointing stick that can be operated intuitively while viewing the liquid crystal screen T1, an enter key for confirming the contents of key input, and the like. These first input sections 11 are preferably configured by mechanical buttons having a bulge of about 0.1 to 2.0 mm, but can naturally be configured by a touch type. .

As shown in FIG. 2, the insertion portion 12 is formed in a U shape in plan view, and the two insertion portions 12 are configured to sandwich the tablet terminal T therebetween. That is, when the tablet terminal T is mounted on the tablet terminal input device A according to the present invention, the tablet terminal T is mounted by inserting the edge T2 of the tablet terminal T into the insertion portion 12.
The groove depth of the insertion portion 12 is set to a size corresponding to the lateral width of the edge portion T2 of the tablet terminal T, as shown in FIG. When mounted on, the entire surface of the liquid crystal screen T1 is exposed. By setting it as such a structure, the edge part T2 which is a dead space which is not normally used can be utilized effectively.
Further, a magnet or the like may be provided in a part of the insertion portion 12 so that the tablet terminal T is fixed by a magnetic force, or a commonly used fastener or the like is provided and fixed to the main body portion 1. You may comprise.

The through-hole 13 is provided at a position corresponding to the camera T3 and the home button T4 of the tablet terminal T. Thereby, even when the input device A for tablet terminals is mounted, the camera T3 and the home button T4 exposed by the through hole 13 can be used.

The cover unit 2 has a second input unit 21 located on the back side of the tablet terminal T.
Further, as shown in FIG. 2, the cover portion 2 is formed in a convex shape when viewed from the front, and a first portion provided in the main body portion 1 when the cover portion 2 is brought into close contact with the liquid crystal screen T1. It is comprised so that the input part 11 may be exposed (refer FIG. 1). That is, the cover portion 2 has an exposed portion that exposes the first input portion 11 and is formed so as to fit into the concave shape of the main body portion 1.

The second input unit 21 is provided with a preferable key for operating with four fingers other than the thumb when the tablet terminal input device A is held with both hands. For example, in a normal keyboard (US layout and JIS layout), it is desirable to arrange keys used by four fingers. In addition, when the tablet terminal T is gripped from the side, it is desirable to arrange the key arrangement similar to the JIS arrangement at the contact position of the four fingers. That is, in this embodiment, since the 2nd input part 21 is arranged in 4 rows along a longitudinal direction, it has composition which each finger can key each 1 row.
Further, like the first input unit 11, the second input unit 21 is preferably configured with a mechanical button.

The connection unit 3 connects the main body unit 1 and the cover unit 2 and has a rotation mechanism configured to rotate the cover unit 2 around the connection unit 3. This rotation mechanism preferably uses a hinge or the like, and is configured such that the cover 2 can be in close contact with both the front side and the back side of the tablet terminal T.

In addition, any of the main body 1, the cover 2, and the connection 3 is provided with a communication unit that transmits a signal to the tablet terminal T and a power supply unit that causes the tablet terminal input device A to function. Yes.

The communication means has an interface configured to transmit a signal to the tablet terminal T. The interface includes one or more of a universal serial bus interface, a wireless universal serial bus interface, a Bluetooth® interface, a serial data interface, and a parallel data interface. May be included.

The power supply means has a power source (for example, a battery, a capacitor, a power connector, etc.) configured to supply power to the tablet terminal input device A and the interface. Further, when connecting directly to the tablet terminal T, power may be supplied from the tablet terminal T.

Next, a method for using the tablet terminal input device A will be described in detail.

FIG. 3 shows a state in which the cover 2 of the tablet terminal input device A is attached to the front side of the tablet terminal T. FIG. 3A is a perspective view in which the cover portion 2 rotates to the front side of the tablet terminal T, and shows how the cover portion 2 is brought into close contact with the liquid crystal screen T1 of the tablet terminal T. As a result, as shown in FIG. 3B, the cover 2 covers the liquid crystal screen T1 of the tablet terminal T, so that it can be used as a protective cover for the liquid crystal screen T1 when the tablet terminal T is not used. .

FIG. 4 shows a state in which the cover portion 2 of the tablet terminal input device A is attached to the back side of the tablet terminal T. FIG. 4A is a perspective view in which the cover part 2 rotates to the back side of the tablet terminal T, and shows a state in which the cover part 2 is brought into close contact with the back side of the tablet terminal T. As a result, as shown in FIG. 4B, the second input unit 21 provided in the cover unit 2 is exposed on the back side of the tablet terminal T.

FIG. 5 shows a state in which the tablet terminal input device A is used in a state where the cover portion 2 is in close contact with the back surface of the tablet terminal T, and the user M covers both sides of the tablet terminal input device A. Grasping and performing key input operations. Thus, the user M can easily perform a key input operation while holding the tablet terminal T.

FIG. 6 shows in detail the arrangement of the user's hand M1 when the input A for the tablet terminal is used. FIG. 6A is a perspective view showing the front side of the tablet terminal T, and shows a state in which key input is performed on the first input unit 11 using a thumb. FIG. 6B is a perspective view showing the back side of the tablet terminal T, and shows a state where key input is performed on the second input unit 21 using four fingers other than the thumb.

According to the present invention, since the first input unit 11 is provided on the liquid crystal screen T1 side of the tablet terminal T and the second input unit 21 is provided on the back side, the user M of the tablet terminal T can Key input can be performed while holding the terminal T. Therefore, even if the tablet terminal T and the input device are not installed on a plane such as a desk, a large amount of key input can be performed on the tablet terminal T in a standing state at a high speed.

In addition, according to the present invention, since the first input unit 11 is provided on the liquid crystal screen T1 side of the tablet terminal T, the position of the first input unit 11 is confirmed when the tablet terminal T is gripped. You can operate with your thumb. For this reason, buttons that can be operated intuitively, such as a cross key and a pointing stick, and important keys for determining an enter key or the like are arranged, and a key input operation can be performed while confirming with the eyes of the user M. .

Further, according to the present invention, since the second input unit 21 is provided on the back side of the tablet terminal T, more input units can be arranged. That is, by using the space on the back side of the tablet terminal T that is normally provided with nothing, it is possible to provide the same number of input units as the standard type keys provided on a normal keyboard (US layout and JIS layout).

In addition, according to the present invention, since the second input units 21 are provided in four rows along the longitudinal direction, when the tablet terminal input unit A according to the present invention is gripped from both sides, Typing can be done in the same way as touch typing when using a keyboard.

Further, according to the present invention, since the second input unit 21 is configured by a mechanical button, it is possible to grasp the position of the key with a tactile sensation without looking at the back surface and perform a key input operation with high accuracy. it can. For example, if the second input unit 21 is a Dutch type input unit, it is difficult to grasp the position of the input unit because it is difficult to grasp the position of the input unit by touching the second input unit 21. Typing accuracy will drop. Therefore, the accuracy of typing can be increased by employing a mechanical button.

Further, according to the present invention, by transmitting a signal to the tablet terminal T and performing a key input operation, it is not necessary to use a virtual keyboard, and the display area of the liquid crystal screen T1 of the tablet terminal T is not compressed. Therefore, the display unit of the liquid crystal screen T1 can be used comfortably.

<Embodiment 2>
Hereinafter, the tablet terminal input device B according to the second embodiment will be described in detail with reference to FIGS. The second embodiment is characterized in that a main body portion 4 having a shape different from that of the previous embodiment is provided, and the main body portion 4 is provided with a first input portion 41 and a second input portion 42. In the same embodiment, components that are basically the same as those of the previous embodiment are denoted by the same reference numerals, and description thereof is simplified.

The tablet terminal input device B according to the second embodiment includes a main body 4 to which the tablet terminal T can be attached and detached (see FIG. 7). The main body part 4 is formed in a substantially flat plate shape having a thickness capable of accommodating the tablet terminal T, and includes a front part 4a provided with an opening window 43 that exposes the screen T1 of the tablet terminal T, and a tablet terminal. It has a back surface portion 4b that supports T from the back surface, an upper surface portion 4c provided with an insertion port 44 for inserting the tablet terminal T, a side surface portion 4d that contacts the user's hand M1, and a lower surface portion 4e. ing.
The thickness of the main body 4 is formed between 1.0 and 3.0 cm, more preferably between 1.5 and 2.5 cm. By forming the main body 4 with such a thickness, it is possible to configure the tablet terminal input device B that is easy for the user M to hold.

The front part 4a is connected to the opening window 43 for exposing the screen T1 of the tablet terminal T, the first input part 41, the through hole 45 for exposing the camera T3 of the tablet terminal T, and the home button T4. And a button 46 to be operated (see FIG. 8A). Further, as shown in FIG. 7, in the state where the tablet terminal T is mounted on the main body 1, the horizontal width of the opening window 43 is set to a size corresponding to the horizontal width of the liquid crystal screen T <b> 1 of the tablet terminal T. The entire surface of the screen T1 is exposed. Thus, the dead space that has not been used is effectively utilized by arranging the front portion 4a on which the first input portion is provided on the edge T2, which is a dead space that has not been normally used. can do.

The back surface part 4b is provided with the 2nd input part 42 and the support part 47 which supports the main-body part 4 (refer FIG.8 (b)).
The second input unit 42 includes a right hand key 42R with which the right hand is in contact and a left hand key 42L with which the left hand is in contact. On the left side, the left hand key 42L is provided on the right side of the back surface portion 4b when the main body portion 4 is viewed from the back.

As the right hand key 42R, it is desirable to adopt a key that makes contact with the right hand from the home position of a normal keyboard.
Similarly, as the left hand key 42L, it is desirable to employ a key that makes contact with the left hand from the home position of a normal keyboard.

The key arrangement of the right hand key 42R and the left hand key 42L is arranged closer to the center of the tablet terminal as the key is arranged in the downward direction of the tablet terminal, and in a reverse C shape in a rear view. They are arranged obliquely (see FIGS. 8B and 9).

Further, it is desirable that the key pressure of the second input unit 42 is set lower than the key pressure of the first input unit 41. The key pressure here means a pressure at which the key reacts when the key is pressed.

The support portion 47 is connected to the back surface portion 4b through a rotation mechanism. As this rotating mechanism, a torque hinge or the like that can be fixed at an arbitrary angle by applying a force by the user is preferably used. The support portion 47 is configured to be able to stand on the desk at an arbitrary angle by being raised and fixed (see FIG. 9).

Moreover, although not shown in figure, you may provide the opening corresponding to the dog connector of the tablet terminal T, or an earphone jack in the side part 4d. Further, a mechanism for connecting to a button provided on the side surface of the tablet terminal, a power button of the main body unit 4 and the like may be further provided.
Moreover, a magnet etc. may be provided in the lower surface part 4e, and the tablet terminal T may be fixed to the main-body part 4 with a magnetic force.

Further, the main body 4 can be used as a storage cover by inserting the tablet terminal T upside down. That is, when the tablet terminal T is used, the screen T1 is inserted so as to be exposed from the opening window 43 (see FIG. 8), but when the tablet terminal T is not used, the tablet terminal T is turned over and inserted into the main body 4. Thus, it can be used as a storage cover for protecting the screen T1.

According to this embodiment, since the back surface portion 4b is configured to support the entire back surface (or front surface) of the tablet terminal T, the strength of the main body portion 4 can be improved. That is, since the main body part 4 according to the present embodiment has the back surface part 4b, the main body part 4 can be formed in a substantially plate shape, and thus the main body part formed in the concave shape according to the first embodiment. Compared with 1, strength can be improved.
In addition, by providing the lower surface portion 4e, the lower edge of the tablet terminal T can be supported, and the strength of the back surface portion 4b can be further improved. The reinforcing function of the lower surface portion 4e functions effectively particularly when the back surface portion 4b is formed thin for thinning.
Further, by providing the lower surface portion 4e, it is possible to provide an input device for a tablet terminal that is excellent in design. That is, by providing the lower surface portion 4e, it is possible to confirm the state of supporting the lower edge of the tablet terminal T, and the design gives more sense of security.

In addition, according to the present embodiment, the key pressure of the second input unit 42 is set lower than that of the first input unit 41, so that the user M can easily perform key input. That is, when the user M performs the key input while holding the main body 4, the user M needs to press the key upward against the second input unit 42 provided on the back side against gravity. Therefore, the user M can perform an easy key input by setting the key pressure of the 2nd input part 42 lower than the 1st input part 41. FIG.

Further, according to the present embodiment, the key arrangement of the second input unit 42 is obliquely arranged in a reverse C shape in the rear view, so that the user M can easily perform key input. it can. That is, when the user M grips the main body 4, the index finger and the middle finger are arranged at a position close to the center of the tablet terminal, and the little finger is arranged at a position far from the center of the tablet terminal. Therefore, the user M can easily perform key input by adopting a key arrangement that reflects the position of each finger when grasped.

Moreover, according to this embodiment, the support part 47 is provided in the back surface part 4b, Therefore A user can use it comfortably with a desk etc. Since this support portion 47 is configured to be adjustable to an arbitrary angle by a torque hinge, when using the tablet terminal on a flat surface such as a desk, the support portion 47 is fixed at a preferred angle of the user M and is comfortable. Key input can be performed.

Moreover, according to the present invention, the space on the desk can be used effectively. In conventional tablet keyboards and notebook computers, it was necessary to spread the keyboard on the desk, which was putting pressure on the desk. On the other hand, according to the present invention, since the input unit is arranged on the front and back surfaces of the tablet terminal, it is not necessary to arrange the keyboard on the desk. Therefore, the space can be used effectively without pressing the space on the desk. .

A, B Input device 1 for tablet terminal 1 Main body part 11 First input part 12 Insertion part 13 Through hole 2 Cover part 21 Second input part 3 Connection part 4 Main body part 4a Front face part 4b Back face part 4c Upper face part 4d Side face part 4e Lower surface portion 41 First input portion 42 Second input portion 42R Right hand key 42L Left hand key 43 Open window 44 Insertion slot 45 Through hole 46 Button 47 Support portion T Tablet terminal T1 LCD screen T2 Edge portion T3 Camera T4 Home Button M User M1 Hand

Claims

An input device for a tablet terminal that transmits a signal to a tablet terminal,
A body part to which the tablet terminal is detachable;
A first input unit provided on the screen side of the tablet terminal;
A second input unit provided on the back side of the tablet terminal,
An input device for a tablet terminal, wherein the key pressure of the second input unit is set lower than the key pressure of the first input unit.
The input device for a tablet terminal according to claim 1, wherein the first input unit is provided with an enter key.
The first input part is provided around an edge of the main body part,
The tablet device input device according to claim 1, wherein the second input unit is provided around a back side of the first input unit.
When the main body is gripped with a thumb and four fingers other than the thumb, the first input unit is disposed at a position where the thumb can come in contact;
The tablet terminal input device according to any one of claims 1 to 3, wherein the second input unit is arranged at a position where four fingers other than the thumb can come into contact with each other.
Further comprising a cover portion attachable to the screen side and the back side of the tablet terminal,
The tablet terminal input device according to any one of claims 1 to 4, wherein the second input section is provided in the cover section.
The tablet device input device according to claim 5, wherein the cover portion is provided with an exposed portion for exposing the first input portion.
The main body is formed in a flat plate shape having a thickness capable of storing the tablet terminal,
A front portion provided with an opening window for exposing the screen of the tablet terminal;
A back portion supporting the tablet terminal;
An upper surface provided with an insertion slot for inserting the tablet terminal;
The side part that the user's hand contacts;
The tablet terminal input device according to any one of claims 1 to 4, further comprising a lower surface portion that supports a lower edge of the tablet terminal.
An input device for a tablet terminal that transmits a signal to a tablet terminal,
A body part to which the tablet terminal is detachable;
A first input unit provided on the screen side of the tablet terminal;
A second input unit provided on the back side of the tablet terminal,
The main body is formed in a flat plate shape having a thickness capable of storing the tablet terminal,
A front portion provided with an opening window for exposing the screen of the tablet terminal;
A back portion supporting the tablet terminal;
An upper surface provided with an insertion slot for inserting the tablet terminal;
The side part that the user's hand contacts;
An input device for a tablet terminal, comprising: a lower surface part that supports a lower edge of the tablet terminal when the tablet terminal is attached to the main body part.
In the state where the tablet terminal is mounted on the main body,
The tablet terminal input device according to claim 7 or 8, wherein a width of the opening window is a size corresponding to a width of a screen of the tablet terminal.
10. The tablet terminal input device according to claim 7, wherein a support part for supporting the main body part is provided on the back surface part.
The tablet terminal input device according to any one of claims 1 to 10, wherein the second input unit includes a mechanical button having a height.
The key arrangement of the second input unit is arranged such that a key arranged in a downward direction of the tablet terminal is arranged at a position closer to the center of the tablet terminal. An input device for a tablet terminal according to claim 1.