JP4216895B1 - Folding portable terminal device - Google Patents

Abstract

In a portable terminal device with a TV reception function that can be opened and closed in a first direction and a second direction, a TV broadcast can be viewed on a horizontally long screen, and a display direction of an operation unit can be displayed in accordance with the screen. A mobile terminal device is realized.
A key top sheet and a frame attached to a first casing are provided with a slide sheet for displaying the contents of the keys of the operating section inside the operation surface side of the first casing with the operating section. When the second casing 2 is closed in the first direction, the protrusion is disposed in a space surrounded by the portion and the pusher sheet, and is slidable by the movement of the protrusion 12 provided in the connecting portion 3. By utilizing the fact that 12 is rotated in conjunction with each other, the slide sheet 13 is shifted to switch from the numeric array for telephone to the numeric array for channel selection, and the display direction is also switched to the display rotated 90 degrees.
[Selection] Figure 6

Description

  The present invention relates to a foldable portable terminal device in which two housings are connected in a first direction and a second direction so as to be opened and closed.

  In a foldable mobile phone connected so that two housings overlap each other, the user opens the foldable mobile phone with the connecting portion as a center, thereby providing a first housing having an operation unit such as a numeric keypad. It is common to see the second housing with a display in the hand.

  Recently, however, mobile phones that receive and display television broadcasts have been put into practical use and are beginning to spread. For this reason, it is known that it is easier to view a horizontally long television broadcast screen by rotating the display unit in the second direction. Therefore, the second casing provided with the display unit is mechanically rotated in the second direction around the rotation axis provided at the end of the casing, and the direction of the display unit is changed from the first direction. A structure for switching to the second direction has been proposed (see, for example, Patent Document 1).

  An example of a conventional folding cellular phone is shown in FIGS. 16 and 17. FIG. The mobile phone 60 in FIG. 16 includes three cases: a first case 61 having an operation unit 71, a second case 62 having a display unit 72, and a connection unit 63. And the connection part 63 is supported by the 1st rotation axis | shaft 61a provided in the 1st housing | casing 61 so that rotation in the arrow A direction is possible. By rotating the connecting portion 63 in the direction of arrow A, the second housing 62 can be opened in the first direction with respect to the first housing 61. The connecting portion 63 is provided with a second rotation shaft 63a, and supports the second casing 62 so as to be rotatable. For this reason, the cellular phone 60 can be used with the display unit 72 of the second housing 62 finally opened in the second direction as shown in FIG.

  In such a case, when the second casing 62 is opened in the second direction and the display unit 72 is horizontally long, the arrangement and orientation of the operation unit 71 such as a numeric keypad is the arrangement and orientation for watching a television broadcast. It is convenient to change to. As a method for this, it is conceivable that the operation unit is a touch panel with a liquid crystal display, and the key arrangement and direction of the liquid crystal display are changed whenever the direction of the display unit 72 is changed. It ’s hard to keep the LCD and backlight on. The liquid crystal display is turned off once, and then, if necessary, the touch panel is touched to display the liquid crystal display again before selecting a channel. In addition, when the casing is opened and closed in a state where the power is not turned on, it is conceivable that display is not performed in an optimum character input direction (see, for example, Patent Document 2).

  As another conventional example, in a key structure of an electronic device including a key top and a key function display unit that displays the key function display of each key so that it can be confirmed from the outside, the key function display unit is connected to the key top. A key structure of an electronic device is known in which the relative position can be changed and the key function display that can be confirmed from the outside is switched according to the change of the relative position (see, for example, Patent Document 3).

  FIG. 18 shows a schematic front view of the conventional electronic device, and FIG. 19 shows a partial cross section of the key top 91 and the key function display board 84 taken along the line CC in FIG. In FIG. 19, the keyboard 90 slides left and right on the lower housing 81. The left and right movement of the keyboard 90 is detected by conducting to the two terminals 83 of the lower housing 81 when the conductor 93 provided at the right end of the keyboard 90 slides. When the keyboard 90 is set to one side, alphabetic input can be performed, and when the keyboard 90 is set to the other side, hiragana input can be performed.

As shown in FIG. 18, the key 91a of the keyboard 90 includes a transparent portion 91b at the center. Further, as shown in FIG. 19, the lower surface of the key 91a is in slidable surface contact with the upper surface 84a of the key function display board 84. The lower end of the key function display board 84 is fixed vertically to the lower casing 81 of the main body of the electronic device 80, and is bent stepwise in the middle so that the upper surface 84a on which characters are printed is horizontal. Here, the upper surface 84a has a hiragana display and an alphabetic display side by side with a certain width apart. The constant width is equal to the sliding stroke of the keyboard 90. Further, the size of the transparent portion 91b is slightly larger than the character display on the key function display board 84, and two characters are not seen through the transparent portion 91b. When the keyboard 90 is moved to the right or left in FIG. 18, the display content seen through the transparent portion 91b is switched between hiragana display and alphabetic display. With the key structure described above, the display content of the key function display board can be switched even if the power source of the electronic device 80 is not turned on.
JP 2006-22899 A JP 2001-296958 A JP 2002-7034 A

  The present invention includes a connecting portion that includes two rotating shafts and that can be opened and closed in a first direction and a second direction, such as a mobile phone, a game machine, and a PDA (Personal Digital Assistant) having a TV reception function. When the second casing is folded and opened by rotating the rotation shaft of the connecting portion in the folded portable terminal device, the characters printed on the operation unit such as a numeric keypad are displayed on a display such as a liquid crystal display. The first challenge is to change it according to the orientation.

  The second is to realize an easy-to-use portable terminal device that can switch characters printed on an operation unit such as a numeric keypad in accordance with the orientation of a display such as a liquid crystal even when the power is not turned on. It is an issue.

  Further, according to the third aspect, the change according to the orientation of the display unit can be realized by opening and closing the second housing with respect to the first housing without intentional operation by the user. It is an issue.

  The present invention relates to a foldable portable terminal device in which a first casing provided with an operation unit and a second casing provided with a display unit are connected via a connecting unit. A slide sheet preliminarily printed with characters in two directions, a frame portion surrounding the slide sheet, a pusher sheet fixed to the lower surface of the frame portion, and a key top sheet fixed to the upper surface of the frame portion are provided. The slide sheet is slidably supported in a space surrounded by the key top sheet, the frame portion, and the pusher sheet, and a part of the slide sheet protrudes from the space surrounded by the frame portion, the pusher sheet, and the key top sheet. Thus, a follower member for sliding driving from the outside of the frame portion is provided.

  The connecting portion includes a first rotation shaft that allows the second casing to rotate in the first direction with respect to the first casing, and a second casing with respect to the first casing. A second rotation shaft is provided that enables the body to rotate in a second direction orthogonal to the first direction. Further, the first rotation shaft is provided with a protrusion for slidingly moving the follower member. When the connecting portion is rotated in the first direction with respect to the first housing, the first rotating shaft fixed to the connecting portion and the protruding portion fixed to the first rotating shaft are rotated to move the protruding portion. The key sheet is slid by moving the follower member by. The operation unit of the first housing is arranged on the key top sheet of the operation unit according to the rotation of the second housing having the display unit with respect to the first housing in the first direction or the second direction. The character arrangement corresponding to the direction of the second housing can be selectively visually recognized from the provided display window.

  That is, when the connecting portion is rotated together with the second casing in the first direction with respect to the first casing, and when the second casing is rotated in the second direction with respect to the first casing. When it is moved, one of the characters displayed in two different directions described on the slide sheet is displayed on the display window provided in the first housing.

  With this configuration, the key arrangement of the operation unit and the display direction are correctly switched with respect to the display surface of the second casing by rotating the connecting section and the second casing with respect to the first casing. be able to.

  Further, the present invention provides a slide sheet for slidably supporting the slide sheet by the movement of the projection portion in order to change the contents described in the slide sheet visible from the window portion of the operation unit in the first housing. A pressing means is provided for pressing the protrusion against the protrusion, and the pressing means is provided with a stopper means for stopping further movement when the slide sheet moves a predetermined amount.

  According to the present invention, there is provided a foldable portable terminal device that includes two pivot shafts and can be opened and closed in a first direction and a second direction, such as a mobile phone, a game machine, and a PDA having a television reception function. By rotating the rotation shaft of the connecting portion from the folded state of the second housing, the characters printed on the operation unit such as a numeric keypad can be changed according to the orientation of the display such as a liquid crystal display. .

  In addition, since the switching is performed mechanically, the display surface of the second casing is rotated in the first direction or the second direction with respect to the first casing when the mobile terminal device is not turned on. By doing so, the characters printed on the operation unit such as a numeric keypad can be switched in accordance with the orientation of a display such as a liquid crystal provided in the second housing.

  Moreover, the operation part has a sealed structure with a key top sheet, a frame part, and a pusher sheet, and is excellent in dustproof and waterproof functions.

  In addition to the above-described configuration, the present invention further includes wireless communication means and television broadcast receiving means. The slide sheet describes characters for wireless communication and characters for television reception, with respect to the first casing. When the connecting part is opened together with the second casing in the first direction, characters for wireless communication are displayed, and the second casing is opened in the second direction with respect to the first casing. When, it is configured to selectively display characters for television reception.

  With this configuration, characters for wireless communication can be displayed when opened in the first direction, and characters for television reception can be displayed when opened in the second direction.

(Embodiment 1)
In the first embodiment of the present invention, the second casing is opened in the first direction (first direction of the casing) relative to the first casing, or the second direction (of the casing). The connecting portion, which is a third housing that connects the first housing and the second housing, depending on whether the second housing is opened in the second direction) The problem is solved by using the fact that it remains open or closed.

  FIG. 1 is a perspective view showing a state in which the second casing 2 of the foldable mobile phone 100 according to Embodiment 1 of the present invention is opened in the first direction. The first housing 1 having the operation unit 51 is a bearing unit (not shown) and rotatably supports the first rotation shaft 9. The connecting portion 3 integrally fixes the first rotating shaft 9 to the connecting portion 3 by shaft holding portions 3a and 3b. Further, a protrusion 12 indicated by a broken line is fixed to the first rotation shaft 9. Therefore, the connection part 3, the 1st rotation shaft 9, and the projection part 12 rotate as an integral component. A second rotation shaft 10 indicated by a broken line is provided at one corner of the connecting portion 3 so as to be orthogonal to the first rotation shaft 9, and the second casing 2 is rotated on the second rotation shaft 10. It is attached freely. A display unit 52 is provided in the second housing 2.

  Thus, in the foldable mobile phone 100, when the second casing 2 is opened in the first direction with respect to the first casing 1, the numeric keys on the operation unit 51 can be used as a telephone. In the numeric keypad array for a telephone set defined by the standard, the first direction is displayed in a vertical direction.

  FIG. 2 is a perspective view showing a state in which the second casing 2 of the foldable mobile phone 100 according to Embodiment 1 of the present invention is opened in the second direction. The arrangement of each part is the same as that in FIG. 1, but the second casing 2 rotates around the second rotation shaft 10 from the closed state, so that the second casing 2 is the first casing. Open in the second direction relative to the body 1. The connecting portion 3 is closed with respect to the first housing 1. At this time, the numbers on the numeric keypad of the operation unit 51 are arranged in the first row from the left as “1”, “2”, “3”, and “4” so as to be easy to use as a television receiver. In the second row, “5”, “6”, “7”, “8” are arranged from the left. In the third column, “9”, “10”, “11”, and “12” are arranged. The direction of the numbers is also displayed with the second direction of the casing up and down.

  In the foldable mobile phone 100, when the second casing 2 is opened in the first direction relative to the first casing 1 and opened in the second direction, the display of the liquid crystal display unit is respectively performed. The printed characters of the operation unit 51 can be seen in a direction suitable for the direction. Hereinafter, the configuration will be described in detail.

  FIG. 3 is an exploded perspective view of the main part of the operation unit 51. As shown in FIG. 3, key contents such as numerals are printed on the surface of the slide sheet 13. Numbers from “1” to “10” for the numeric keypad are printed side by side such as 14a, 14b, and 14c. In addition, numbers for TV channels are printed alternately with numbers for numeric keys such as 15a, 15b, and 15c. The numeric keypad numbers (first print group) are oriented so that the first direction of the second housing 2 is up and down, and the TV channel numbers (second print group) are oriented in the second direction. It is printed at a 90 degree angle. The slide sheet 13 is made of a plastic sheet that is thin but has rigidity sufficient to prevent buckling. And as shown in FIG. 3, the follower attaching part 13a is formed in the convex shape in the end.

  A frame portion 6 is disposed around the slide sheet 13 in FIG. 3, and a pusher sheet 19 is disposed on the back surface side (the surface opposite to the printing surface). The frame portion 6 is provided so as to surround the periphery of the slide sheet in order to restrict the movement of the slide sheet 13. A stepped portion 6a is provided on the lower surface of the frame portion 6 so that the thickness of the frame portion 6 is reduced so that the follower mounting portion 13a of the slide sheet 13 described above passes. A pusher sheet 19 is attached and fixed to the lower surface of the frame portion 6 in order to improve the click feeling of the key.

  The slide sheet 13 is placed on the pusher sheet 19 in a state where the pusher sheet 19 is adhered and fixed to the lower surface of the frame portion 6, and the follower attaching portion 13 a formed at one end of the slide sheet 13 is provided on the step portion of the frame portion. The follower 7 is fixed to the follower mounting portion 13a through the gap between the portion 6a and the pusher seat 19. FIG. 4 shows a perspective view of this state, and FIG. 5 shows a cross-sectional view.

  Returning to FIG. 3, a key top sheet 16 made of a plastic member or the like is overlaid on the surface side of the slide sheet 13. The key top sheet 16 constitutes a display window 16a with the printing size and printing interval of one printing group so that printing of only the first printing group or the second printing group of the slide sheet 13 can be seen, and the remaining portion 16b. Is made opaque. The key top sheet 16 is stuck and fixed to the upper surface of the frame portion 6. The slide sheet 13 slides in a space sealed by the key top sheet 16, the frame 6 and the pusher sheet 19.

  As will be described later, the follower member 7 moves following the protrusion 12 attached to the first rotation shaft 9 when the first rotation shaft 9 reaches a predetermined angle or more. Therefore, the slide sheet 13 to which the follower member 7 is fixed slides following the rotation of the first rotation shaft 9 in the space formed by the frame portion 6, the pusher sheet 19, and the key top sheet 16.

  In FIG. 3, the diaphragm 5 and the key circuit board 4 are disposed below the frame portion 6 and the pusher sheet 19. The diaphragm 5 is arranged in a number smaller than the numbers and characters printed on the slide sheet 13. When the diaphragm 5 is pressed from above, the center part is dented, and the contact provided at the position overlapping the center part is in contact with the key contact circuit on the key circuit board 4 and is electrically connected to detect the pressing. Like to do.

  FIG. 6 (a) shows a state in which the second casing 2 of the foldable mobile phone 100 according to Embodiment 1 of the present invention is closed from the open state in the first direction to the position of 90 degrees. Shown as a cross-sectional view.

  The first housing 1 is provided with a torsion coil spring holding portion 8, the torsion coil spring 11 is supported by the spring holding portion 8 a, and the end surface of the follower member 7 fixed to the slide sheet 13 is fixed to the first rotation shaft 9. The protrusion 12 is pushed. The slide sheet 13 tries to move in the left direction of the drawing by the force of the torsion coil spring 11. A stopper portion 8b that stops the movement of the slide sheet 13 in the left direction of the drawing is projected from the left end of the torsion coil spring holding portion 8. If there is nothing else that stops the movement of the slide sheet 13, it moves in the left direction in the drawing until it hits the stopper portion 8b.

  The protrusion 12 is attached to the first rotation shaft 9. The protrusion 12 hits the tip of the follower member 7 fixed to the slide sheet 13 and slides the slide sheet 13 when the first rotation shaft 9 rotates.

  In the state of FIG. 6A, the follower member 7 hits a stopper portion 8b formed by protruding the holding portion 8 of the torsion coil spring 11, and did not contact the protruding portion 12, but the second casing 2 is moved in the first direction. The protrusion 12 is contacted by rotating and closing.

  Up to this point, since the projecting portion is not in contact with the projecting portion 12, there is no movement of the slide sheet, and it is possible to maintain a normal character notation suitable for calling as a mobile phone or browsing an e-mail.

  FIG. 6B shows a state when the second housing 2 is moved in the first direction from the predetermined degree to the closing direction. The first housing 1 is shown in cross section. The connecting portion 3 moves together with the second housing 2 in a direction to close the first direction as indicated by an arrow D with respect to the first housing 1. When the connecting portion 3 is closed, the first rotating shaft 9 fixed integrally with the connecting portion 3 also rotates in the direction of the arrow D. When the first rotation shaft 9 rotates, the protrusion 12 also starts to rotate in conjunction with it. When the protrusion 12 rotates in the direction of arrow D, the follower member 7 is moved in the right direction of the drawing and in the direction of arrow E by the force of the torsion coil spring 11. The follower member 7 continues to move in the left direction of the drawing, and stops by hitting a stopper portion 8b formed by protruding the torsion coil spring holding portion 8.

  As a result, the user can actually close the second casing and is actually blocked by the second casing even though the slide sheet provided in the first casing is moving. This can be done without being aware of the changing characters.

  The amount of movement of the follower member 7 is half of one pitch of the adjacent windows 1a of the first casing 1. That is, if 1 pitch is “P”, the follower member 7 moves to the left by “P / 2”, and the slide sheet 13 on which the follower member 7 is fixed also moves to the left by “P / 2”.

  In the foldable mobile phone 100 of the present invention, the movement of the follower member 7 by the protrusion 12 starts when the second housing 2 is closed to a predetermined angle in the first direction. As a result, until the second housing 2 is closed 90 degrees in the first direction, the key arrangement of the operation unit 51 and the display orientation are not changed, and the second housing 2 is moved in the first direction. When it starts to close, it starts switching, and when it is completely closed, the character switching is completed.

  Therefore, in the first embodiment, an example has been described in which switching of the key arrangement and the display direction starts when the second housing 2 is closed to 90 degrees in the first direction, but the angle is not limited to 90 degrees. .

  FIG. 7 shows a plan view of the foldable mobile phone 100 when the second housing 2 is fully opened in the first direction. Since the second housing 2 is opened together with the connecting portion 3, the operation buttons can be viewed from the transparent window 1a of the first housing 1. In FIG. 7, it can be seen that “1”, “2”, and “3” are lined up in the first row from the top of the direction of characters for a telephone. In the second row, “4”, “5”, “6” are arranged. In the third row, “7”, “8”, and “9” are arranged. “*”, “0”, and “#” are arranged in the fourth row. As a result, when the display unit 52 of the foldable mobile phone 100 is set to be vertically long, the numeric keypad can be pressed without hesitation as the numeric arrangement of the phone.

  FIG. 8 shows a state when the second housing 2 is closed together with the connecting portion 3 with respect to the first housing 1, and the inside of the first housing 1 is shown in cross section. In the first housing 1, there is a printed circuit board 4 fixed by a support unit (not shown). On the printed circuit board 4, the number of diaphragms 5 is smaller than the numbers and letters printed on the slide sheet 13. Just arranged. A pusher sheet 19 is fixed on the diaphragm 5. In the drawing, the cross-sectional shape of the frame portion 6 and the pusher sheet 19 is exaggerated so that it can be clearly seen. However, the actual thickness of the whole is thin, and when the pusher sheet 19 is pushed from above, it is bent and immediately below. The center part of the diaphragm 5 is recessed.

  FIG. 9A shows a state when the second housing 2 is opened in the second direction. The first housing 1 is shown in cross section. Although the connecting portion 3 remains closed with respect to the first housing 1, the second housing 2 rotates around the second rotation shaft 10 and the display portion 52 can be seen. Here, since the connection part 3 remains closed with respect to the 1st housing | casing 1, the 1st rotating shaft 9 does not rotate. That is, the protrusion 12 does not rotate, and the position of the slide sheet 13 is the same as when the second casing 2 in FIG. 6 is closed.

  FIG. 9B shows a plan view of the foldable mobile phone 100 when the second housing 2 is opened in the second direction. Since the second housing 2 is open, numbers can be viewed from the display window 1a of the first housing 1 for the operation buttons. In FIG. 9B, the numbers from “1” to “12” for the TV channel are “1”, “2”, “3”, “4” in the first row from the top of the character direction. You can see them lined up. In the second row, “5”, “6”, “7”, “8” are arranged. In the third row, “9”, “10”, “11”, and “12” are arranged. As a result, when the display unit 52 of the foldable mobile phone 100 is set to be horizontally long for watching a television broadcast, any one of the channels “1” to “12” can be pressed without hesitation.

  In FIG. 10, after integrating the frame portion 6 and the pusher sheet 19, the slide sheet 13 is placed on the pusher sheet 19, and the follower mounting portion 13 a is passed through a gap formed by the step portion 6 a of the frame portion and the pusher sheet 19. FIG. 4 is a perspective view of a state in which the follower 7 is fixed to the follower mounting portion 13a and engaged with the torsion coil spring 11.

  FIG. 11 shows a cross-sectional view of FIG. As shown in FIG. 11, a groove 7 a is formed in the lower portion of the follower 7, and the tip portion of the torsion coil spring 11 is engaged. The torsion coil spring 11 is attached to the torsion coil spring holding portion 8. The torsion coil spring holding portion 8 is provided with a holding portion 8a and a stopper 8b that function in the same manner as shown in FIG.

  Further, the tip portion of the torsion coil spring 11 changes while drawing an arc, but is slid in the groove direction of the groove 7 a below the follower 7. In the first embodiment of the present invention, as a means for fixing the slide sheet 13 and the follower 7, the guide pin 20 is fitted into the follower 7 from above the follower mounting portion 13 a of the slide sheet 13. The guide pin 20 is slid so as not to move in a direction perpendicular to the sliding direction when the slide sheet 13 slides so that a guide groove (not shown) provided in the sliding direction hits the first housing 1. Is regulated. As described above, the slide operation of the slide sheet 13 is restricted by the guide pin 20 and the guide groove (not shown) provided in the slide direction in the first housing 1, so that the slide sheet 13 moves only in the slide direction. As a result, the slide sheet 13 slides stably.

  12 (a) to 12 (c) show the sliding state of the slide sheet 13 when the second housing 2 shown in FIG. 6 is opened and closed with the connecting portion 3 with respect to the first housing 1. FIG. The details of the partial cross section are shown.

  12A is a cross-sectional view in a state where the second housing 2 and the connecting portion 3 are fully opened, and FIG. 12B is a cross-section in a state where the second housing 2 and the connecting portion 3 are opened 90 degrees. FIG. 12C shows a partial cross-sectional view when the second housing 2 is closed together with the connecting portion 3 with respect to the first housing 1.

  In the first embodiment, the case where the protrusion 12 is fixed to the first rotation shaft 9 has been described. However, other structures may be used as long as the rotation of the first rotation shaft 9 is transmitted in conjunction with the protrusion 12. May be used. For example, another shaft may be provided between the first rotation shaft 9 and the projection 12 and the first rotation shaft 9 and the projection 12 may be interlocked. As a result, the position of the axis of the protrusion can be arbitrarily set.

  Further, the movement of the connecting portion 3 which is the third casing relative to the first casing 1 is defined as the movement of the protrusion 12, and the slide sheet 13 to which the follower member 7 is fixed is slid to mechanically. The display content of the operation unit and the display direction are switched. Therefore, even if the mobile terminal device is not turned on, the display content of the operation unit and the display direction can be switched reliably.

  In addition, a mobile phone having a television receiving means, which is one of mobile terminal devices, has been described. However, in a mobile phone with a game function, when it is opened in the second direction, it is switched to a key arrangement for games so that it can be used as a game machine. You may do it. In addition, the characters displayed in two different directions may be arranged alternately.

  In addition, as an arrangement of characters displayed when the second casing is opened in the second direction with respect to the first casing, “1”, “2”, “3”, “4” "Can be seen. In the second row, “5”, “6”, “7”, “8” are arranged. Then, “9”, “10”, “11”, and “12” are arranged in the third row, but in order to perform uncomfortable feeling when inputting e-mails, the direction of characters is changed from the top to the first row. “1”, “2”, “3” in the eyes, “4”, “5”, “6” in the second row, “7”, “8”, “9” in the third row Also good.

  In the text, the accuracy is ensured by making contact with the stopper portion 8b as a reference for securing the positional accuracy of the slide sheet 13, but the position is determined by applying the slide sheet 13 to the inner end face of the frame portion 6. You may make it the structure which gives precision.

(Embodiment 2)
FIG. 13 shows a partial cross-sectional view of a foldable mobile phone 100 according to Embodiment 2 of the present invention. In FIG. 13, the first housing 1 is provided with a compression spring holding portion 21. The compression spring 22 is supported by the compression spring holding portion 21, and the end surface of the follower member 7 fixed to the slide sheet 13 is moved first time. It pushes on the protrusion 12 fixed to the moving shaft. The configuration of the second embodiment is the same as that of the first embodiment except that the type of spring is changed to a torsion coil spring and a compression spring is used.

(Embodiment 3)
Next, Embodiment 3 of the present invention will be described with reference to FIGS. The third embodiment is characterized in that minute protrusions 23 are formed on the surface of the slide sheet 13, and the other configuration is the same as that of the first embodiment. By providing minute protrusions on the surface, the gap between the key top sheet and the slide sheet can be kept constant, and the contact area can be reduced, so that the sliding resistance can be reduced.

  In addition, although the example which provided the micro processus | protrusion 23 in several places was shown, many micro processus | protrusions 23 may be provided and you may provide not only on the surface of the slide sheet 13, but on the back surface. The protrusion height of the minute protrusion 23 may be smaller than the thickness of the slide sheet 13.

  The present invention is not limited to a foldable mobile phone, and is used in a game machine that uses a display screen that is switched between portrait and landscape, a PDA having a television reception function, and the like. The present invention can be applied to a foldable mobile terminal device that can be opened and closed in a direction.

The perspective view which shows the state which opened the housing | casing of the mobile telephone which concerns on Embodiment 1 of this invention in the 1st direction. The perspective view which shows the state which opened the housing | casing of the mobile telephone which concerns on Embodiment 1 of this invention in the 2nd direction. 1 is an exploded perspective view of a main part of an operation unit of a mobile phone according to Embodiment 1 of the present invention. The perspective view which shows the structure of the slide sheet related part of Embodiment 1 of this invention. The fragmentary sectional view which shows the structure of the slide sheet related part of Embodiment 1 of this invention (A) Partial sectional view showing a state in which the casing of the mobile phone according to Embodiment 1 of the present invention is opened in the first direction. (B) The case of the mobile phone casing according to Embodiment 1 of the present invention is shown in FIG. Partial sectional view showing a state opened in the direction of 1 The top view which shows the state which opened the housing | casing of the mobile telephone which concerns on Embodiment 1 of this invention in the 1st direction. Partial sectional view when the mobile phone according to Embodiment 1 of the present invention is closed (A) Partial sectional view showing a state in which the casing of the mobile phone according to Embodiment 1 of the present invention is opened in the second direction (b) The case of the mobile phone casing according to Embodiment 1 of the present invention is Plan view showing a state opened in the direction of 2 The perspective view which shows the structure of the slide sheet related part of Embodiment 1 of this invention. The fragmentary sectional view which shows the structure of the slide sheet related part of Embodiment 1 of this invention (A) Partial sectional view showing a state in which the casing of the mobile phone according to Embodiment 1 of the present invention is opened in the first direction. (B) The case of the mobile phone casing according to Embodiment 1 of the present invention is shown in FIG. (C) Partial sectional view showing a state in which the casing of the mobile phone according to Embodiment 1 of the present invention is closed (A) Partial sectional view showing a state in which the casing of the mobile phone according to Embodiment 2 of the present invention is opened in the first direction. (B) The casing of the mobile phone according to Embodiment 2 of the present invention is shown in FIG. Partial sectional view showing a state opened in the direction of 1 The perspective view which shows the structure of the slide sheet related part of Embodiment 3 of this invention. The fragmentary sectional view which shows the structure of the slide sheet related part of Embodiment 3 of this invention The perspective view which shows the state which opened the 2nd housing | casing of the conventional mobile telephone in the 1st direction The perspective view which shows the state which opened the 2nd housing | casing of the conventional mobile telephone in the 2nd direction Plan view of conventional electronic equipment Partial sectional view of a conventional electronic device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st housing | casing 2 2nd housing | casing 3 Connection part 4 Printed circuit board 5 Diaphragm 6 Frame part 7 Follower member 8 Torsion coil spring holding part 9 1st rotation shaft 10 2nd rotation shaft 11 Torsion coil spring 12 Protrusion part 13 Slide sheet 16 Key top sheet 19 Pusher sheet 51 Operation unit

Claims (13)

In a foldable portable terminal device in which a first casing provided with an operation unit and a second casing provided with a display unit are connected via a connecting unit.
A first pivot shaft that pivots the second casing in a first direction relative to the first casing;
A second rotating shaft that rotates the second casing in a second direction orthogonal to the first direction with respect to the first casing;
The operation unit is
A slide sheet on which the function of each key is printed,
A key top sheet disposed on the printing surface side of the slide sheet;
A frame portion surrounding the slide sheet;
A pusher sheet disposed on the back side of the printing surface of the slide sheet and fixed to the frame portion,
The slide sheet is fixed to a connection member that interlocks with the rotation of the first rotation shaft, and slides inside the frame portion with the rotation of the first rotation shaft. Mobile terminal device. The foldable portable terminal device according to claim 1, wherein the frame portion and the pusher sheet are bonded and fixed.   The foldable portable terminal device according to claim 1, wherein the key top sheet is fixed to the frame portion. The connecting member is
A protrusion fixed to the first rotation shaft and rotating together with the rotation of the first rotation shaft;
A follower member that is fixed to the slide sheet at one end and follows the protrusion at a predetermined angle of the first rotation shaft at the other end;
When the second casing rotates with respect to the first casing in the closing direction around the first rotation axis, the protrusion also rotates to push the other end side of the follower member The foldable portable terminal device according to claim 1, wherein the slide sheet slides. The slide sheet has a first character group printed in the first direction and the first character group.
A second character group is printed in the second direction orthogonal to the direction;
The key top sheet forms a plurality of transparent display windows in which one of the first character group and the second character group is visible from the outside when the slide sheet slides.
In a state where the second casing is opened in the first direction with respect to the first casing, the first character group overlaps the display window,
2. The configuration according to claim 1, wherein the second character group overlaps the display window when the second casing is open and closed in the second direction with respect to the first casing. Folding portable terminal device. The foldable portable terminal device according to claim 5, wherein characters displayed in two different directions on the slide sheet are printed alternately. The first direction is a direction in which the second casing is opened in the longitudinal direction with respect to the first casing, and the second direction is the second direction with respect to the first casing. The foldable portable terminal device according to claim 1, wherein the casing is in a direction to open the housing in a short direction. A wireless communication means and a television broadcast receiving means;
6. The foldable mobile phone according to claim 5, wherein characters for wireless communication are printed on the first character group, and characters for television reception are printed on the second character group. One end is fixed to the follower member, and the other end is further provided with pressing means fixed to a holding portion provided inside the first housing,
The follower member is pressed in the first direction by the pressing means in the direction of the connecting portion,
In a state in which the first casing and the second casing are closed, the follower member and the protrusion are in contact with each other,
When the projection rotates with the rotation of the first rotation shaft from the closed state, the follower member moves in the direction of the connecting portion following the projection by the pressing of the pressing means. The foldable portable terminal device according to claim 4. The foldable portable terminal device according to claim 9, wherein the pressing means is a torsion coil spring. The foldable portable terminal device according to claim 9, wherein the pressing means is a compression spring. The foldable portable terminal device according to claim 9, wherein a stopper portion is formed in the holding portion in a moving direction of the follower member, and the holding member comes into contact with the stopper means when the follower member moves a predetermined amount. The foldable portable terminal device according to any one of claims 1 to 12, wherein a plurality of minute protrusions are formed on a printing surface of the slide sheet.

Images