JP2020030784A - Electronic apparatus, protective case, and electronic apparatus storage method - Google Patents

Abstract

To provide an electronic apparatus capable of reducing the number of components, a protective case storing the electronic apparatus, and an electronic apparatus storage method.SOLUTION: An electronic dictionary 10 includes: a first case 20 and a second case 40 in which an LCD display part 22 is held by one side and a keyboard 42 is held by the other side; a permanent magnet 23 arranged in the first case 20; an MR element 24 arranged on the first case 20 to detect a closed state of the first case 20 and the second case 40; and a magnetic component 44 arranged on the second case 40 so that, in the closed state of the first case 20 and the second case 40, one end 44a is positioned adjacent to the permanent magnet 23 and the other end 44b is positioned adjacent to the MR element 24.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electronic device, a protection case, and an electronic device storage method.

  2. Description of the Related Art Portable electronic devices such as electronic dictionaries and tablet terminals equipped with a liquid crystal screen are known. Various protection methods have been adopted to protect the liquid crystal screen of such electronic devices when not in use (during storage or transportation). In the case of a foldable electronic device, a protection state is established by closing the liquid crystal screen toward the keyboard (for example, see Patent Document 1). In the case of a tablet-type electronic device, the main body of the electronic device is fixed on one side of a separate foldable protective case with the liquid crystal screen facing inward, and the cover is closed on the electronic device main body to achieve a protective state.

  Such an electronic device has a function of turning off a liquid crystal screen when a keyboard or a cover is closed and switching to a power saving mode, for example, suppressing the operation of a CPU. An MR element (magnetoresistive) is placed on the LCD screen side to detect the closed state of the keyboard and cover, and a permanent magnet is placed on the keyboard and cover side. The closed state is detected by utilizing the property of the closed state. When opening the keyboard or cover, the opposite operation is performed.

  On the other hand, when the electronic device is not used, a permanent magnet is placed on the LCD screen side and a magnetic material is placed on the keyboard and cover side so that the keyboard and cover do not open carelessly, and the closed state is maintained by magnetic force. Was common.

JP-A-6-338837

  In the above-described electronic apparatus, if the function of detecting the opening or closing of the keyboard or the cover with the MR element and the function of fixing the keyboard or the cover by magnetic force are used at the same time, a permanent magnet is required for each, and the number of parts increases. For this reason, the component cost is increased, and the magnetic force of the permanent magnet for fixing is detected by the MR element, and there is a possibility that correct operation cannot be performed.

  An object of the present invention is to provide an electronic device, a protective case, and an electronic device storage method that can reduce the number of components.

  As one embodiment of the present invention, an electronic device includes a first case and a second case each having a display unit on one side and an input unit on the other; a magnet unit provided in the first case; And a magnetoresistive element for detecting a closed state between the first case and the second case, and a magnetoresistive element provided for the second case, wherein one end is provided in a closed state between the first case and the second case. A magnetic body located near the magnet portion and having the other end side located near the magnetoresistive element.

  As one embodiment of the present invention, a protective case includes a case that detachably holds an electronic device having a display unit, a magnet unit, and a magnetoresistive element, and covers the display unit in a state where the electronic device is held in the case. A cover member and a magnetic body provided on the cover member, wherein one end is located near the magnet portion and the other end is located near the magnetoresistive element in the closed state of the case and the cover member. Prepare.

  As one embodiment of the present invention, the protective case includes a case having a holding portion, a cover member connected to the case so as to be openable and closable, and provided on the cover member, and one end of the case and the cover member in a closed state. The case includes a magnetic body that receives a magnetic field line from the outside, emits the magnetic field line from the other end, and does not receive the magnetic field line from the outside at one end when the cover and the cover member are open.

  As one embodiment of the present invention, an electronic device storage method includes a first opening / closing member that holds an electronic device having a display portion, and a first opening / closing member that is formed to be openable and closable with respect to the first opening / closing member. In a storage method capable of detecting a non-use state with a second opening / closing member having a cover for covering a magnetic member provided on the second opening / closing member, By approaching one end side, the magnetic body is magnetized by the magnetic force from the magnet unit, and the magnetic resistance element provided on the first opening / closing member side approaching the other end side of the magnetic body includes the magnetic body. The proximity of the first opening / closing member and the second opening / closing member is detected by applying a magnetic line of force from the magnet portion input from one end of the magnetic member, and the proximity between the magnetic body and one end of the magnet portion is detected. , The first opening / closing member and the second opening / closing member Perform a magnetic force fixed.

FIG. 2 is an exemplary perspective view showing an open state of the electronic dictionary according to the first embodiment of the present invention. FIG. 2 is a plan view schematically showing an open state in the electronic dictionary. The side view which shows the open state in the electronic dictionary typically. FIG. 2 is a plan view schematically showing a closed state in the electronic dictionary. The side view which shows the closed state in the same electronic dictionary typically. FIG. 9 is an exemplary perspective view showing an open state of the electronic device protection case according to the second embodiment of the invention. FIG. 4 is a side view showing an open state of the electronic device protection case. FIG. 3 is an exemplary perspective view showing an open state in which the tablet terminal is mounted on the electronic device protection case; FIG. 4 is a perspective view showing a closed state in which the tablet terminal is mounted on the electronic device protection case. FIG. 4 is a side view showing a closed state in which the tablet terminal is mounted on the electronic device protection case.

[First Embodiment]
1 to 5 are explanatory diagrams of an electronic dictionary (electronic device) 10 according to the first embodiment of the present invention. FIG. 1 is a perspective view showing an open state of the electronic dictionary 10, and FIG. 2 is a plan view schematically showing an open state of the electronic dictionary 10. 3 is a side view schematically showing an open state of the electronic dictionary 10, FIG. 4 is a plan view schematically showing a closed state of the electronic dictionary 10, and FIG. 5 is a side view schematically showing a closed state of the electronic dictionary 10. It is.

  As shown in FIG. 1, the electronic dictionary 10 includes a folding first case (first opening / closing member) 20 and a second case (second opening / closing member) 40, and a hinge mechanism 60 that connects these members to be freely opened and closed. It has. The electronic dictionary 10 usually has a second case 40 having a keyboard 42 to be described later placed on a desk, and a first case 20 having an LCD display unit 22 to be described later opened at 90 degrees or more with respect to the second case 40. Used.

  The first case 20 includes a thin, substantially rectangular case body 21 as viewed from the thickness direction. An LCD display unit 22 is provided on the case body 21. Further, a permanent magnet 23 and an MR element (magnetic resistance element) 24 are attached to a position corresponding to the back side of the LCD display unit 22. In the first embodiment, the permanent magnet 23 and the MR element 24 are arranged apart from each other. The MR element 24 is connected to a circuit board 43 described later. The permanent magnet 23 and the MR element 24 may be provided so as to be exposed on the front surface of the case body 21.

  The second case 40 includes a thin, substantially rectangular case body 41 viewed from the thickness direction. The case main body 41 is provided with a keyboard (input unit) 42. A circuit board 43 and a magnetic component (magnetic material) 44 for functioning as an electronic dictionary are attached inside the case body 41 (see FIG. 2). At least a part of the magnetic component 44 may be exposed on the surface of the case main body 41, for example, one end side 44a and the other end side 44b described below.

  The magnetic component 44 is formed of a soft magnetic material. In the first embodiment, the magnetic component 44 is formed of a relatively inexpensive magnetic material such as stainless steel or low carbon steel. In the first embodiment, the magnetic component 44 is formed, for example, as a plate-like body having a rectangular shape when viewed from the thickness direction. In the first embodiment, the magnetic component 44 has, for example, a direction in which its longitudinal direction intersects the longitudinal direction (axial direction) of the hinge mechanism 60, more specifically, a direction orthogonal to the longitudinal direction of the hinge mechanism 60. One end 44a of the magnetic component 44 is located on the near side of the second case 40, and the other end 44b of the magnetic component 44 is located on the far side (the hinge) of the second case 40. (On the mechanism 60 side).

  As shown in FIGS. 4 and 5, the positional relationship between the permanent magnet 23 and the MR element 24 and the magnetic component 44 is defined. That is, when the first case 20 and the second case 40 are closed (when the electronic dictionary 10 is closed), the permanent magnet 23 is located near one end 44a of the magnetic component 44, and the MR element 24 is located at the other end of the magnetic component 44. It is located near the side 44b. The distance between the permanent magnet 23 and the one end 44a of the magnetic component 44 when the first case 20 and the second case 40 are closed is such that the first case 20 and the second case 40 are not opened carelessly. It is set to a size that can be fixed by magnetic force. In this case, the distance (dimension) between the permanent magnet 23 and the one end 44a of the magnetic component 44 is preferably as small as possible, and most preferably 0 mm. The distance between the MR element 24 and the other end 44b of the magnetic component 44 is determined by detecting the magnetic field lines (that is, the magnetic field) from the other end 44b of the magnetic component 44 by the MR element 24 and the first case 20 and the second case. The dimensions are set so that the case 40 and the closed state can be detected. In this case, the distance (dimension) between the MR element 24 and the other end 44b of the magnetic component 44 is preferably as small as possible. In the first embodiment, as shown in FIG. 2, the size of the permanent magnet 23, the size of the MR element 24, and the size of the magnetic component 44 are substantially the same in the vertical direction on the paper. 4, in order to make it easy to grasp the positional relationship between the permanent magnet 23 and the MR element 24 and the magnetic component 44, the dimension of the permanent magnet 23 and the MR element 24 in the vertical direction on the paper is made smaller than the dimension of the magnetic component 44. Is also shown somewhat larger.

  The electronic dictionary 10 configured as described above shifts from the use state to the housed state as follows. That is, when the user finishes using the electronic dictionary 10 in the state shown in FIG. 1, the user moves the first case 20 and the second case 40 toward each other around the rotation axis of the hinge mechanism 60 (the electronic dictionary 10 The electronic dictionary 10 is closed by rotating the electronic dictionary 10 in the closing direction). At this time, as the distance between the permanent magnet 23 and the one end side 44a of the magnetic component 44 becomes shorter, the magnetic force acting on the magnetic component 44 from the permanent magnet 23 increases, whereby the force by which the permanent magnet 23 attracts the magnetic component 44 is increased. Is increased. The suction force is maximum when the electronic dictionary 10 is closed, and the closed state of the electronic dictionary 10 is maintained by the maximum suction force. The maximum suction force is such that it can be easily released by the force of the user's hand, but is not such a degree that it can be inadvertently released by its own weight. Therefore, once the electronic dictionary 10 is closed, the first case 20 and the second case 40 can be reliably maintained in a closed state unless a force against the maximum suction force is applied to the electronic dictionary 10.

  On the other hand, when the user rotates the electronic dictionary 10 in the closing direction, and immediately before the first case 20 and the second case 40 are completely closed, the magnetic force from the permanent magnet 23 is applied to one end 44 a of the magnetic component 44. Acts mainly. Then, the magnetic component 44 is magnetized from near the one end 44a to the other end 44b. That is, the entire magnetic component 44 is magnetized. At this time, most of the magnetic lines of force from the permanent magnet 23 enter the inside of the magnetic component 44 from near the one end 44a of the magnetic component 44, and pass through the intermediate portion of the magnetic component 44 and from the other end 44b of the magnetic component 44. Output (emitted). That is, when the first case 20 and the second case 40 are about to be completely closed, the lines of magnetic force output from the other end 44b of the magnetic component 44 increase. The MR element 24 detects this increase in the line of magnetic force as a change in resistance, and detects that the first case 20 and the second case 40 are closed. By this detection, the power of the circuit board 43 is turned off or the mode shifts to the power saving mode. In a state where the first case 20 and the second case 40 are opened (a state where the electronic dictionary 10 is opened), the MR element 24 detects a decrease in the lines of magnetic force output from the other end 44 b of the magnetic component 44 as a resistance change. Thus, the power is turned on or the mode is shifted to the normal mode.

  According to the electronic dictionary 10 configured as described above, the attraction force for maintaining the closed state of the first case 20 and the second case 40 is generated by using the magnetic force and the magnetic lines generated by the permanent magnet 23. At the same time, the lines of magnetic force acting on the MR element 24 are increased, so that the state in which the first case 20 and the second case 40 are closed can be detected by the MR element 24. That is, according to the electronic dictionary 10, both the function as a member for generating an attractive force and the function as a member constituting a unit for detecting the open / closed state of the electronic dictionary 10 are provided for one permanent magnet 23. Can also be provided. Therefore, the number of components of the electronic dictionary 10 can be reduced. Therefore, it is possible to reduce the cost of parts, reduce the number of manufacturing steps, and simplify the configuration of the entire apparatus.

  By the way, for example, when permanent magnets are separately prepared and arranged for each of the purposes of fixing the magnetic force and for opening / closing detection, the MR element detects a magnetic field line from the permanent magnet for fixing the magnetic force and causes a malfunction. There is a possibility that it will be. In this regard, according to the electronic dictionary 10 of the first embodiment, when the electronic dictionary 10 is in the closed state, the MR element 24 is not located near the other end side 44b of the magnetic component 44 to be located nearby. In addition, since the permanent magnet 23 is located near the one end 44a on the opposite side, it is possible to prevent the above-described malfunction from occurring.

  The relative position between the permanent magnet 23 and the MR element 24 is not limited to the above-described position, but is preferably set to a distance that prevents the magnetic field lines of the permanent magnet 23 from being directly detected by the MR element 24. In order to maximize the attraction force of the permanent magnet 23 for fixing the magnetic force, it is preferable that the permanent magnet 23 be located as far as possible from the hinge mechanism 60. This is because, for example, when the electronic dictionary 10 is closed, the part of the user farthest from the hinge mechanism 60 of the first case 20 (corresponding to the upper end of the first case 20 in FIG. 1) and the second case 40 In the case where the electronic dictionary 10 is opened while holding the portion farthest from the hinge mechanism 60 (corresponding to the front side portion of the second case 40 in FIG. 1) and resisting the above-described maximum suction force (hereinafter, the user may use the electronic dictionary 10). The force generated while resisting the maximum suction force when the opening of the hinge mechanism is started is referred to as “suction drag”.), The magnitude of the moment of the suction drag force around the rotation axis of the hinge mechanism 60 and the hinge mechanism 60 Can be derived by considering the difference between the maximum suction force and the magnitude of the moment of the maximum suction force about the rotation axis.

[Second embodiment]
6 to 10 are explanatory views of an electronic device protection case 100 and a tablet terminal 200 housed in the electronic device protection case 100 according to the second embodiment of the present invention. 6 is a perspective view showing an open state of the electronic device protective case 100, FIG. 7 is a side view showing an open state of the electronic device protective case, and FIG. FIG. 9 is a perspective view showing an open state, FIG. 9 is a perspective view showing the electronic device protection case 100 with the tablet terminal 200 mounted thereon, and FIG. 10 is a perspective view showing the electronic device protection case 100 with the tablet terminal 200 mounted thereon. FIG.

  The electronic device protection case 100 has a function of protecting the tablet terminal (electronic device) 200. A case 120 that detachably holds the tablet terminal 200, a cover member 140 that covers the display unit of the tablet terminal 200 with the tablet terminal 200 held by the case 120, and the case 120 and the cover member 140 are openably connected. The hinge mechanism 160 is provided. The tablet terminal 200 is usually mounted on the case 120, for example, the case 120 is placed on a desk, and the cover member 140 is opened at 90 degrees or more (for example, about 180 degrees) with respect to the case 120 for use.

  The case 120 includes a plate-shaped case main body 121 formed in a substantially rectangular shape when viewed from the thickness direction, and an engaging portion 122 that holds an outer peripheral portion of the tablet terminal 200. In the second embodiment, the engaging portion 122 is formed integrally with the case main body 121, and one side in the thickness direction from the vicinity of the edge of the case main body 121 (when the electronic device protective case 100 is closed). Thus, it extends toward the inside of the electronic device protection case 100) so that the outer peripheral portion of the tablet terminal 200 can be covered. Note that the case body 121 and the engaging portion 122 may be integrated by fitting each other.

  The tablet terminal 200 includes a housing 201 formed in a substantially rectangular shape when viewed from the thickness direction. The housing 201 is provided with an LCD display unit 202 on one side in the thickness direction. Further, a permanent magnet 203 and an MR element (magnetoresistive element) 204 are attached to a position corresponding to the back side of the LCD display unit 202. In the second embodiment, the permanent magnet 203 and the MR element 204 are arranged apart from each other. Further, a circuit board 205 for causing the tablet terminal 200 to function as an electronic device is provided in the housing 201, and the MR element 204 is connected to the circuit board 205. The permanent magnet 203 and the MR element 204 may be provided so as to be exposed on the front surface of the housing 201.

  The cover member 140 includes a thin, plate-shaped cover main body 141 formed in a substantially rectangular shape when viewed from the thickness direction. When the case 120 and the cover member 140 are closed, the cover body 141 includes a magnetic component 144 having one end 144a located near the permanent magnet 203 and the other end 144b located near the MR element 204. In the second embodiment, the magnetic component 144 is assumed to be mounted inside the cover member 140. However, at least a part of the magnetic component 144, such as one end 144a and the other end 144b, is used. The cover member 140 may be exposed on the surface on the side that covers the display unit of the tablet terminal 200. However, from the viewpoint that the cover member 140 protects the display portion of the tablet terminal 200 or a peripheral portion thereof, the magnetic component 144 is preferably mounted inside the cover member 140.

  The magnetic component 144 is formed of a soft magnetic material. In the second embodiment, the magnetic component 144 is formed of a relatively inexpensive magnetic material such as stainless steel or low carbon steel. In the second embodiment, the magnetic component 144 is, for example, formed in a plate-like body having a rectangular shape when viewed from the thickness direction. In the second embodiment, the magnetic component 144 has, for example, a direction in which its longitudinal direction intersects the longitudinal direction (axial direction) of the hinge mechanism 160, more specifically, a direction that is orthogonal to the longitudinal direction of the hinge mechanism 160. One end 144a of the magnetic component 144 is located on the near side of the cover member 140, and the other end 144b of the magnetic component 144 is located on the far side of the cover member 140 (the hinge mechanism 160). Side).

  As shown in FIGS. 9 and 10, the positional relationship between the permanent magnet 203 and the MR element 204 and the magnetic component 144 is defined. That is, when the case 120 and the cover member 140 are closed (when the electronic device protection case 100 is closed), the permanent magnet 203 is located near the one end 144a of the magnetic component 144, and the MR element 204 is located at the other end of the magnetic component 144. It is located near the side 144b. The distance between the permanent magnet 203 and the one end 144a of the magnetic component 144 when the case 120 and the cover member 140 are closed is set to a dimension that can be fixed with a magnetic force that does not allow the case 120 and the cover member 140 to be opened carelessly. Is set. In this case, the distance (dimension) between the permanent magnet 203 and the one end side 144a of the magnetic component 144 is preferably as small as possible, and most preferably 0 mm. The distance between the MR element 204 and the other end 144b of the magnetic component 144 is determined by the magnetic field lines (that is, the magnetic field) from the other end 144b of the magnetic component 144 detected by the MR element 204 and the case 120 and the cover member 140 Is set to a size that can detect that is closed. In this case, the distance (dimension) between the MR element 204 and the other end 144b of the magnetic component 144 is preferably as small as possible.

  The electronic device protection case 100 and the tablet terminal 200 configured as described above shift from the use state to the housed state as follows. That is, when the user finishes using the tablet terminal 200 in the state shown in FIG. 8, the user moves the case 120 and the cover member 140 toward each other around the rotation axis of the hinge mechanism 160 (when the electronic device protection case 100 is (In the closing direction) to close the electronic device protection case 100. At this time, as the distance between the permanent magnet 203 and the one end side 144a of the magnetic component 144 becomes shorter, the magnetic force acting on the magnetic component 144 from the permanent magnet 203 increases, and as a result, the force by which the permanent magnet 203 attracts the magnetic component 144 Is increased. The suction force is maximum when the electronic device protection case 100 is closed, and the closed state of the electronic device protection case 100 is maintained by the maximum suction force. The maximum suction force is such that it can be easily released by the force of the user's hand, but is not such a degree that it can be inadvertently released by its own weight. Therefore, once the electronic device protection case 100 is closed, the case 120 and the cover member 140 can be reliably maintained in a closed state unless a force against the maximum suction force is applied to the electronic device protection case 100. .

  On the other hand, when the user rotates the electronic device protection case 100 in the closing direction, and immediately before the case 120 and the cover member 140 are completely closed, the magnetic force from the permanent magnet 203 is applied to one end 144a of the magnetic component 144. Acts mainly. Then, the magnetic component 144 is magnetized from near the one end 144a to the other end 144b. That is, the entire magnetic component 144 is magnetized. At this time, most of the magnetic force lines from the permanent magnet 203 enter the inside of the magnetic component 144 from near the one end 144a of the magnetic component 144, pass through the middle part of the magnetic component 144, and from the other end 144b of the magnetic component 144. Output (emitted). That is, just before the case 120 and the cover member 140 are completely closed, the lines of magnetic force output from the other end 144b of the magnetic component 144 increase. The increase in the lines of magnetic force is detected by the MR element 204 in the tablet terminal 200 as a change in resistance, and it is detected that the case 120 and the cover member 140 are closed. By this detection, the power of the circuit board 205 is turned off or the mode shifts to the power saving mode. When the case 120 and the cover member 140 are open (the electronic device protection case 100 is open), the MR element 204 detects a decrease in the lines of magnetic force output from the other end 144b of the magnetic component 144 as a resistance change. Thus, the power is turned on or the mode is shifted to the normal mode.

  According to the electronic device protection case 100 and the tablet terminal 200 configured as described above, the suction for maintaining the closed state of the case 120 and the cover member 140 using the magnetic force and the magnetic force lines caused by the permanent magnets 203. A force is generated, and the lines of magnetic force acting on the MR element 204 are increased, so that the MR element 204 can detect that the case 120 and the cover member 140 are closed. In other words, according to the electronic device protection case 100, a function as a member for generating an attraction force on one permanent magnet 203 and a member constituting a unit for detecting the open / closed state of the electronic device protection case 100 Function can be provided. Therefore, it is possible to reduce the number of components when viewing the electronic device protection case 100 and the tablet terminal 200 as one system. Therefore, it is possible to reduce the cost of parts, reduce the number of manufacturing steps, and simplify the configuration of the entire apparatus.

  By the way, for example, when the permanent magnets are separately prepared and arranged for each of the applications for fixing the magnetic force and for detecting the opening and closing, respectively, the MR element 204 detects a magnetic line of force from the permanent magnet for fixing the magnetic force and malfunctions. There is a risk of causing this. In this regard, according to the electronic device protective case 100 and the tablet terminal 200 of the second embodiment, when the electronic device protective case 100 is in the closed state, the MR element 204 is positioned close to the magnetic device. Since the permanent magnet 203 is located not in the vicinity of the other end 144b of the component 144 but in the vicinity of the opposite one end 144a, it is possible to prevent the above-described malfunction from occurring.

  Although the relative position between the permanent magnet 203 and the MR element 204 is not limited to the above-described position, it is preferable to set the distance so that the magnetic field lines of the permanent magnet 203 can be prevented from being directly detected by the MR element 204. In order to maximize the attraction force of the permanent magnet 203 for magnetic force fixing, it is preferable that the permanent magnet 203 be located as far as possible from the hinge mechanism 160. The reason for this is that in the first embodiment, “In order to maximize the attraction force of the permanent magnet 23 for fixing the magnetic force, it is preferable that the permanent magnet 23 be located as far as possible from the hinge mechanism 60”. This is the same as the reason for that, and the description thereof is omitted.

  Note that the present invention is not limited to the above embodiment. For example, in the above-described example, a foldable electronic dictionary is illustrated as an example of an electronic device. However, it is needless to say that a portable terminal such as a mobile phone, a radio, and a notebook personal computer can be similarly applied. . Further, although the permanent magnet is illustrated as the magnet unit, an electromagnet may be used.

  The magnetic body is a plate-like body that is rectangular when viewed from the thickness direction. However, the present invention is not limited to this. For example, the magnetic body may be in the vicinity of both ends facing the permanent magnets 23 and 203 and the MR elements 24 and 204. In addition to securing a certain area or more, a shape in which the intermediate portion excluding the vicinity of both ends is narrower in the short direction of the magnetic body than the vicinity of the both ends (for example, a shape in which the width is narrower than the vicinity of both ends, a wire shape, and the like) ). In this case, when the user closes the electronic dictionary 10 or the protective case 100 for the electronic device, the magnetic material causes the magnetic lines of force equivalent to the above-described magnetic components 44 and 144 from one end side (the side facing the permanent magnets 23 and 203). Not only can it be guided to the other end side (the side facing the MR elements 24 and 204), but also the magnetic material itself can be reduced in weight, and the electronic dictionary 10 and the protective case 100 for electronic equipment can be reduced in weight.

  Further, in the above-described embodiment, the magnetic components 44 and 144 are plate-like bodies, but the present invention is not limited to this. For example, a soft sheet-like or film-like one may be used. In this case, even if another member is arranged near the installation position of the magnetic body, it is possible to prevent the magnetic body from interfering with the other member by arranging the magnetic body while deforming it. That is, when another member is arranged near the installation position of the magnetic body, the handling when installing the magnetic body is improved. For this reason, for example, the degree of freedom in designing the inside of the electronic dictionary 10 and the electronic device protection case 100 can be increased.

  In the above-described embodiment, the magnetic components 44 and 144 are arranged inside the second case 40 and the cover main body 141 so as to be in a direction intersecting the longitudinal direction (axial direction) of the hinge mechanisms 60 and 160. But it is not limited to this. The magnetic components 44 and 144 may be arranged inside the second case 40 and the cover main body 141, for example, so as to be parallel to the longitudinal direction of the hinge mechanisms 60 and 160.

  Correspondingly, the permanent magnets 23 and 203 corresponding to the one ends 44a and 144a of the magnetic components 44 and 144, and the MR elements 24 and 204 corresponding to the other ends 44b and 144b of the magnetic components 44 and 144, respectively. For example, the first case 20 and the tablet terminal 200 may be arranged side by side in the direction parallel to the longitudinal direction of the hinge mechanisms 60 and 160 while being separated from each other.

  In addition, it goes without saying that various modifications can be made without departing from the spirit of the present invention.

Although one embodiment of the present invention has been described, the present invention is included in the invention described in the claims and their equivalents. Hereinafter, the inventions described in the claims of the present application will be additionally described.
[Appendix 1]
A first case and a second case having a display unit on one side and an input unit on the other side;
A magnet unit provided in the first case;
A magnetoresistive element provided in the first case, for detecting a closed state of the first case and the second case;
A magnetic body provided in the second case, wherein one end is located near the magnet portion and the other end is located near the magnetoresistive element in a closed state of the first case and the second case; Comprising,
Electronics.
[Appendix 2]
The magnet unit and the magnetoresistive element are spaced apart from each other by a distance that does not cause the erroneous detection of the closed state by the magnetoresistive element in a state different from the closed state of the first case and the second case. ing,
The electronic device according to [Appendix 1].
[Appendix 3]
A case that detachably holds an electronic device having a display unit, a magnet unit, and a magnetoresistive element;
A cover member that covers the display unit while the electronic device is held in the case,
A magnetic body provided on the cover member, wherein the case and the cover member are in a closed state, and one end is located near the magnet portion, and the other end is located near the magnetoresistive element;
Protective case.
[Appendix 4]
A case having a holding portion,
A cover member openably and closably connected to the case,
Provided in the cover member, in the closed state of the case and the cover member, input a magnetic field line from outside at one end side, emit a magnetic force line from the other end side, in the open state of the case and the cover member, A magnetic body that does not receive lines of magnetic force from outside on one end side,
Protective case.
[Appendix 5]
A first opening / closing member that holds an electronic device having a display unit, and a second opening / closing member that is formed to be openable and closable with respect to the first opening / closing member and has a cover that covers the display unit of the electronic device. In the storage method that can detect the use state,
By bringing the magnet unit provided on the first opening / closing member side closer to one end side of the magnetic body provided on the second opening / closing member, the magnetic body is magnetized by the magnetic force from the magnet unit,
The first opening / closing is performed by applying a magnetic field line from the magnet section input from one end of the magnetic body to a magnetoresistive element provided on the first opening / closing member side near the other end of the magnetic body. Detecting the proximity of the member to the second opening / closing member,
The magnetic force between the first opening / closing member and the second opening / closing member is fixed by the proximity of the magnetic body and one end side of the magnet portion.
Electronic device storage method.
[Appendix 6]
The magnet unit and the magnetoresistive element are separated from each other by a distance at which the erroneous detection of the closed state by the magnetoresistive element is not performed in a state different from the closed state of the first opening and closing member and the second opening and closing member. Are spaced apart from each other,
The electronic device storage method according to [Appendix 5].

  Reference Signs List 10: electronic dictionary (electronic device), 20: first case (first opening / closing member), 21: case main body, 22: LCD display (display), 23: permanent magnet, 24: MR element (magnetoresistive element) ), 40: second case (second opening / closing member), 41: case body, 42: keyboard (input unit), 43: circuit board, 44: magnetic component (magnetic material), 44a: one end, 44b: others End side, 60: Hinge mechanism, 100: Protective case for electronic device, 120: Case, 121: Case main body, 122: Engaging section, 140: Cover member, 141: Cover main body, 144: Magnetic component, 144a: One end side , 144b 他 端 other end, 160 ヒ ン ジ hinge mechanism, 200 ２００ tablet terminal (electronic device), 201 ハ ウ ジ ン グ housing, 202 表示 display unit, 203 永久 permanent magnet, 204 ＭＲ MR element (magnetoresistive element), 205 回路 circuit Plate.

Claims (6)

A first case and a second case having a display unit on one side and an input unit on the other side;
A magnet unit provided in the first case;
A magnetoresistive element provided in the first case, for detecting a closed state of the first case and the second case;
A magnetic body provided in the second case, wherein one end is located near the magnet portion and the other end is located near the magnetoresistive element in a closed state of the first case and the second case; Comprising,
Electronics. The magnet unit and the magnetoresistive element are spaced apart from each other by a distance that does not cause the erroneous detection of the closed state by the magnetoresistive element in a state different from the closed state of the first case and the second case. ing,
The electronic device according to claim 1. A case that detachably holds an electronic device having a display unit, a magnet unit, and a magnetoresistive element;
A cover member that covers the display unit while the electronic device is held in the case,
A magnetic body provided on the cover member, wherein the case and the cover member are in a closed state, and one end is located near the magnet portion, and the other end is located near the magnetoresistive element;
Protective case. A case having a holding portion,
A cover member openably and closably connected to the case,
Provided in the cover member, in the closed state of the case and the cover member, input a magnetic field line from outside at one end side, emit a magnetic force line from the other end side, in the open state of the case and the cover member, A magnetic body that does not receive lines of magnetic force from outside on one end side,
Protective case. A first opening / closing member that holds an electronic device having a display unit, and a second opening / closing member that is formed to be openable and closable with respect to the first opening / closing member and has a cover that covers the display unit of the electronic device. In the storage method that can detect the use state,
By bringing the magnet unit provided on the first opening / closing member side closer to one end side of the magnetic body provided on the second opening / closing member, the magnetic body is magnetized by the magnetic force from the magnet unit,
The first opening / closing is performed by applying a magnetic field line from the magnet section input from one end of the magnetic body to a magnetoresistive element provided on the first opening / closing member side near the other end of the magnetic body. Detecting the proximity of the member to the second opening / closing member,
The magnetic force between the first opening / closing member and the second opening / closing member is fixed by the proximity of the magnetic body and one end side of the magnet portion.
Electronic device storage method. The magnet unit and the magnetoresistive element are separated from each other by a distance at which the erroneous detection of the closed state by the magnetoresistive element is not performed in a state different from the closed state of the first opening and closing member and the second opening and closing member. Are spaced apart from each other,
An electronic device storage method according to claim 5.