JP4503395B2 - Mobile device - Google Patents

Description

  The present invention relates to a portable terminal in which two casings are connected so as to be bendable by a connecting device having flexibility, and the connecting device is folded and held closed when not in use.

  In recent years, a large number of mobile phones have been developed and used. In addition to a straight type having a simple bar shape, various types of folding types that can be opened and closed via a hinge portion have been developed.

  The foldable mobile phone includes an upper casing having a display section, a lower casing having an operation section, and a hinge section that connects the upper and lower casings so that the display section and the operation section face each other in an openable and closable manner. It has a structure in which the upper and lower casings are relatively rotated and folded around the axial center of the hinge portion.

  On the other hand, a connecting portion that connects an upper housing having a display portion and a lower housing having an operation portion is formed into a foldable belt shape that is thinner than the thickness of the upper and lower housings (hereinafter referred to as this). There is also a proposal (referred to as Patent Document 1). This foldable mobile phone is a foldable mobile phone in that the foldable mobile phone can be opened and closed via a hinge portion, but can be folded using the flexibility of the belt-like connecting portion. Different from the phone.

Design Registration No. 1161572

  By the way, in the above-described conventional folding type mobile phone, when the upper housing and the lower housing are folded and closed at the belt-like connecting portion, a restoring force is generated in the connecting portion to return from the bent state to the open state. For this reason, the folding type mobile phone requires a locking means for holding the two casings in a bent state when not in use.

  On the other hand, for example, if the locking means is provided so as to sandwich the outer surface of the housing (upper and lower surfaces of the two housings in the closed state) in the vicinity of the connecting portion, the distance from the connecting portion is reduced. For this reason, the force required for locking becomes large and it becomes difficult to maintain the closed state, and a large force is also required for releasing the locking.

  In addition, if the holding means that can be locked to the outer surface of the housing is projected, the locking device may be caught and removed from the pocket or back when the pocket is inserted or removed, and the housing may be opened unexpectedly. It is.

  The present invention has been made in view of the above situation, and can be reliably maintained in a closed state, can be easily released, and the housing is unexpectedly opened when being taken in and out of the pocket or back. It is to obtain a portable terminal that never happens.

In order to achieve the above object, the portable terminal according to claim 1 of the present invention is configured such that one end of two casings are foldably connected in a state of being spaced apart from each other, and the two casings are folded from the folded state. A connecting device having a restoring force to return to the open state is provided, and the two housings are held in a bent state against the restoring force of the connecting device at the other ends opposite to the one ends of the two housings. A first locking portion that extends from one housing and a second locking portion that is provided on the other end side surface of the other housing and is fastened to the first locking portion. Ri Do and a locking portion, the first locking portion has a projection projecting in a direction formed by the magnetic material crossing the housing opening direction of the other ends, the second locking portion has a box A concave portion provided on the body surface and a magnet provided at the bottom of the concave portion, and the protrusion of the first locking portion is in front Characterized in that so as to be adsorbed to the magnet when inserted into the recess.
As the locking means, a hook or a magnet suction tool can be used.

  In this portable terminal, since the locking means is provided at the other ends of the two housings, the distance from the coupling device (that is, the point of action from the fulcrum) is larger than when the locking means is provided on the outer surface of the housing. Distance). Therefore, the force at the point of action, that is, the locking force necessary for holding is minimized. In addition, the locking means does not protrude from the outer surface of the housing, and the locking means does not get caught when it is taken in or out of the pocket or back.

  In this portable terminal, since the protrusion and the recess are fitted in the direction intersecting the opening direction of the other ends of the housing, a larger force (shearing) is required than when the protrusion and the recess are fitted in the same direction as the opening direction. Force) can resist the restoring force (opening force) of the coupling device, and the two casings can be reliably bent and held. Further, the projection of the first locking portion and the magnet of the second locking portion are locked to each other by the magnetic attractive force, and the two housings can be held in a bent state. Further, when releasing the holding, the holding can be easily released by separating the first locking portion and the second locking portion with a force larger than the magnetic attractive force.

The portable terminal according to claim 2 , wherein the magnet is a double-sided, two-pole magnetized magnet having N and S poles on the front and back sides, and the magnet extends across both the N and S poles on one side of the magnet. The protrusion is adsorbed.

  In this portable terminal, the protrusion is adsorbed across the two poles, and since the magnetic flux density is large in this part, the adsorption force of the protrusion to the magnet can be increased.

  According to the portable terminal according to the present invention, since the other ends of the two casings are provided with the locking means that holds the two casings in a bent state against the restoring force of the connecting device, Compared with the case where the locking means is provided on the surface, the separation distance from the coupling device can be maximized, and as a result, the force required for locking is minimized and the closed state can be reliably maintained, Unlocking can also be facilitated.

  In addition, since the locking means does not protrude from the outer surface of the housing, it is possible to prevent the locking device from being caught by being locked in and out of the pocket or back, and the housing from being opened unexpectedly. Since the display unit is prevented from being erroneously recognized as being open when not in use (in a closed state) and illuminating and illuminating, the battery is not consumed and the usable time is not shortened.

Hereinafter, preferred embodiments of a portable terminal according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of a mobile terminal according to the present invention, FIG. 2 shows an opened main body of the mobile terminal according to the present invention and a connecting device provided on the main body, and FIG. FIG. 3 is a central cross-sectional view of the portable terminal according to the present invention when the portable terminal is opened.
A mobile terminal (folded type mobile phone) 100 according to the present embodiment is roughly configured by fixing a housing composed of an upper housing 1 and a lower housing 2, and upper and lower housings 1 and 2, It is comprised from the connection apparatus 3 which can be bent between these upper and lower housing | casing 1,2.

  Among these, the upper housing 1 includes a receiver (receiver) 11 shown in FIG. 3 as a first audio output unit, a speaker 12 as a second audio output unit, a display unit 13, and a permanent magnet 14. The first printed circuit board 15 and the like are accommodated. The first printed circuit board 15 is provided with an LCD or the like constituting the display unit 13.

  On the other hand, the lower housing 2 includes a transmitter (microphone) 21, an operation unit 22, a vibrator unit 23, a camera unit 24, a hall element 25, a removable battery 26, and a second printed circuit board 27. And so on. The second printed circuit board 27 is mounted with a transmission / reception unit, a data conversion unit, an audio processing unit, an image processing unit, an information recording unit, a control unit, and the like.

  The connecting device 3 is configured to fix the upper and lower housings 1 and 2 sandwiching a bendable connecting portion, and is mainly composed of a sheet-like member and a spring member, and an antenna 34 (FIG. 2). And a flexible wiring member (for example, a flexible substrate) 35 is accommodated.

  The connecting device 3 connects the lower end surface side of the upper housing 1 and the upper end surface side of the lower housing 2, and the connecting device 3 is bent by the connecting portion 3A in the direction of arrow P in FIG. And bendable in the opposite direction. That is, when not in use, as shown in FIG. 2B, the housings 1 and 2 are folded, that is, the upper housing 1 is bent in a state of facing (opposing) the lower housing 2. On the other hand, at the time of use, the housings 1 and 2 are opened so that the user's face faces the upper housing 1 and the lower housing 2 as shown in FIG.

  The receiver 11 that is a receiver is provided on the main surface 1A of the upper housing 1 that faces the lower housing 2 when the housings 1 and 2 are closed, and is arranged so that sound is output from the main surface 1A. ing. When the folded mobile phone 100 according to the present embodiment is normally used, the voice of the communication partner is output. On the other hand, the speaker 12 shown in FIG. 3 is provided on the back surface 1B opposite to the main surface 1A of the upper housing 1 and outputs a ring tone from the back surface 1B when waiting for mail or telephone. It is arranged to do.

  The microphone 21 and the operation unit 22 of the transmitter are provided on the main surface 2A of the lower housing 2 that faces the main surface 1A of the upper housing 1 when the housings 1 and 2 are closed. The vibrator unit 23 notifies the incoming call by vibration by oscillating the incoming call.

  The camera unit 24 is provided on the back surface 2B opposite to the main surface 2A of the lower housing 2 along with a battery 26 that can be attached to and detached from the lower housing 2, and a subject behind the operation unit 22 Can be imaged. Incident light from a subject captured by the camera unit 24 passes through a lens group, is converted from an optical signal to an electrical signal by a photoelectric conversion element such as a CCD (charge coupled device), and image information is generated. After this image information is processed by the image processing unit, an image is generated on the display unit 13.

  The hall element 25 is a means for detecting the magnetic field of the housing permanent magnet 14 and is provided on the second printed circuit board 27 so as to face the housing permanent magnet 14 when the main body A is closed. ing. In the closed state in which the housings 1 and 2 are closed, the Hall element 25 detects the magnetic field of the housing permanent magnet 14 and outputs a detection signal to the control unit. Output. In addition, since the case permanent magnet 14 is separated from the hall element 25 when the cases 1 and 2 are in an open state, the magnetic field of the case permanent magnet 14 cannot be detected. Is not generated.

  In other words, the casings 1 and 2 are closed when the Hall element 25 detects the casing permanent magnet 14, and are open when they are not detected. In the folded type mobile phone 100 according to the present embodiment, when the case is closed, nothing is displayed on the display unit 13 in the reception standby state, and power is not consumed. In addition, illumination means (not shown) for illuminating the display unit 13 does not emit light. In the open state, a mark indicating the received electric field strength, remaining battery capacity information, time information, incoming call information, and the like are displayed, and illumination by the illumination means is performed.

  The connecting device 3 is bent when the housings 1 and 2 are closed, and is released from the bent state when the housings 1 and 2 are opened. A sheet-like member that fixes the two upper and lower casings 1 and 2 apart from each other, and has a restoring force and rigidity that returns to a flat state (the state before the folding) when folded. And a spring member to be provided. As shown in FIG. 3, the connecting device 3 includes a first connecting member 31, a second connecting member 32, and a third connecting member 33. Among these, the 1st connection member 31 and the 3rd connection member 33 comprise a sheet-like member, and the 2nd connection member 32 comprises the spring member.

  The first connecting member 31 forms a surface in the same direction as the main surface 1A of the upper housing 1 and the main surface 2A of the lower housing 2, and at the same time, the outer surface of the upper housing 1 and the outer surface of the lower housing 2 The surface is integrally formed (the outer surfaces of the upper and lower casings 1 and 2 are also used). The 2nd connection member 32 is provided ranging from the upper housing | casing 1 to the lower housing | casing 2, and is formed with the thin plate-shaped steel materials (carbon tool steel material, stainless steel, etc.) which have flexibility and rigidity. The third connecting member 33 is attached to the first connecting member 31 so as to integrally connect the back surface 2B of the lower housing 2 and cover the second connecting member 32 and the flexible wiring member 35.

  The first connecting member 31 and the third connecting member 33 are made of a flexible material such as thermoplastic polyester / ether / elastomer or polyurethane resin. Moreover, the material which forms this 1st connection member 31 and the 3rd connection member 33 is not restricted to the material mentioned above, What is necessary is just to form in a sheet form with the material which has flexibility and elasticity.

  The inner surface 1C of the main surfaces 1A and 2A of the upper and lower casings 1 and 2 formed by the first connecting member 31 is made of an inner surface portion 1C using another material such as ABS resin different from the forming material of the main surfaces 1A and 2A. 2C is formed. That is, the upper housing 1 and the lower housing 2 are integrally configured by a different material molding method (for example, insert molding or the like) integrally formed of different materials. In the present embodiment, the outer surfaces of the upper casing 1 and the lower casing 2 formed of thermoplastic polyester / ether / elastomer (actually, the first connecting member 31) 1A, 2A, A window frame portion 13A formed of ABS resin is integrally formed.

  The second connecting member 32 is linearly extended from the upper housing 1 toward the lower housing 2, and the cross-sectional shape of the second connecting member 32 is an arc shape having a width W1 and a curvature R2 as shown in FIG. Is formed. The center of the curvature R2 is on the main surface 1A side of the upper housing 1 (or the main surface 2A side of the lower housing 2), and this center is indicated by a point O.

  As shown in FIG. 2A, in the state where the connecting device 3 of the main body A is opened, the second connecting member 32 is lowered from the upper housing 1 while maintaining the circular arc shape of the curvature R2 from one end to the other end. It extends linearly toward the housing 2 and maintains a stable state. Here, even if it is going to bend in the direction opposite to the arrow P in order to further open (expand) from the state in which the coupling device 3 of the main body part A is opened (the state in FIG. 1), a curved state is formed. The rigidity in the direction of releasing the bent state (further releasing the casings 1 and 2 from the flat open state) is enhanced, and the force (hereinafter referred to as this) Is called “curvature holding force”). Therefore, the force (reverse bending force) required to open the housings 1 and 2 in the direction of further opening from the open state, that is, the convex back curved surface (positive curved surface) direction opposite to the concave curved surface (negative curved surface) direction. ) Is much larger than the force (folding force) required to close the main body portion in the P direction, and is difficult to bend. This difficulty in bending is determined from the fixing method of the second connecting member 32, the second moment of section, the Young's modulus, and the like.

  On the other hand, when bent in the direction of arrow P with a force greater than a predetermined force, the central portion of the second connecting member 32 bends in the direction in which the connecting device 3 of the main body A closes due to the jumping phenomenon, but does not undergo plastic deformation. When the applied force is removed, the restoring force restores the original flat open state, and the connecting device 3 returns to the open state. That is, the second connecting member 32 also functions as a means for preventing an easy bending operation in the arrow P direction from the state in which the housings 1 and 2 are opened.

  Therefore, when the casings 1 and 2 are opened, the first, second, and third connecting members 31 to 33 are in a straight (straight) open state, and this state is maintained by the rigidity of the second connecting member 32. . When the lower housing 2 is held in the hand, the upper housing 1 is kept stationary and remains stationary, does not bend in the direction of the arrow P, and does not hang down in the opposite direction. Moreover, when the casings 1 and 2 are closed, they can be easily closed.

Next, the locking means for holding the two casings in the bent state will be described.
4 is a central sectional view when the portable terminal according to the present invention is closed, and FIG. 5 is an enlarged view of a main part of FIG. 4 showing the locking means.
The folding mobile phone 100 includes a locking means 41 that holds the two casings 1 and 2 in a folded state after the casings 1 and 2 are closed. The two casings 1 and 2 are connected to each other at the ends 1a and 2a by the connecting device 3 described above. The locking means 41 is provided at the other ends 1b, 2b opposite to the ends 1a, 2a.

  The locking means 41 works to hold the two casings 1 and 2 in a bent state against the restoring force of the coupling device 3. The locking means 41 includes a first locking portion 43 that extends from one housing 1 and a second locking portion 45 that extends from the other housing 2 and partially overlaps the first locking portion 43. Become. The 1st latching | locking part 43 and the 2nd latching | locking part 45 can be formed by extending the 3rd connection member 33 which forms the outer surface of the housing | casing 1 and 2 integrally. That is, the first locking portion 43 and the second locking portion 45 are made of a flexible material such as thermoplastic polyester / ether / elastomer or polyurethane resin. In addition, the 1st latching | locking part 43 and the 2nd latching | locking part 45 may attach a separate extension member to the housings | casings 1 and 2. FIG.

  The locking means 41 is provided with a hook, a magnet suction tool, and the like for holding the casings 1 and 2 in a bent state. In the present embodiment, the locking means 41 is provided with a magnet 47. The magnet 47 attracts and holds the overlapping first locking portion 43 and second locking portion 45 by magnetic attraction force. The magnet 47 may be provided on at least one of the first locking portion 43 and the second locking portion 45. When the magnet 47 is provided in one of the first locking part 43 and the second locking part 45, the other is provided with an attracting member 49 formed of a magnetic metal.

  As shown in FIG. 5, the magnet 47 and the attracting member 49 are formed in small pieces and are provided in the overlapping portion of the first locking portion 43 and the second locking portion 45 so as to face each other in parallel. Is done. In the present embodiment, a magnet 47 is provided on the second locking portion 45, and an attracting member 49 is provided on the first locking portion 43. Thus, in the first locking portion 43 and the second locking portion 45 provided with the magnet 47 on one side and the attracting member 49 on the other side, the overlapping portions are attracted to each other by magnetic attraction force, and as a result, The two housings 1 and 2 can be held in a bent state via the first locking portion 43 and the second locking portion 45.

  As for the 1st latching | locking part 43 and the 2nd latching | locking part 45, the 1st latching | locking part 43 extended from the upper housing | casing 1 overlaps the outer side of the 2nd latching | locking part 45 extended from the lower housing | casing 2 ( It is preferable to cover. By adopting such an overlapping direction, when the lower casing 2 is gripped by one palm, the upper casing 1 is disposed on the lower casing 2 and is raised from the other end 2b of the lower casing 2. The first locking part 43 suspended from the other end 1b of the upper housing 1 is overlapped on the outside of the two locking parts 45, and the outer first locking part 43 is flipped up from the lower side with the other hand, Easy holding release operation is possible.

  The locking means 41 may be provided with magnets 47 on both the first locking portion 43 and the second locking portion 45. At this time, the magnet may be arranged so that the different poles face each other when the first and second locking portions 43 and 45 overlap. According to such a configuration, the first locking portion 43 is attracted to the outside with respect to the second locking portion 45, or the first locking portion 43 is attracted to the inside of the second locking portion 45. Both overlapping directions (covering directions) are possible, and the user can select any covering direction. In particular, according to the configuration in which the second locking portion 45 is disposed outside, the release operation of the second locking portion 45 can be performed simultaneously with the gripping of the lower housing 2, so that the upper housing 1 on the open side can be It is not necessary to touch, and it is possible to release the lock only with one hand on the side where the lower housing 2 is gripped.

  Thus, when the casings 1 and 2 are closed, the casings 1 and 2 try to open by the return force F2 of the second connecting member 32, but the magnet 47 of the second locking portion 45 is By adsorbing to the adsorbing member 49 of the locking portion 43, it is possible to prevent the casings 1 and 2 from being opened even if the return force F2 acts on the casings 1 and 2.

Next, the operation of the bent type mobile phone 100 of this embodiment will be described in detail.
In the folded type mobile phone 100 of the present embodiment configured as described above, the upper casing 1 and the lower casing 2 are closed and connected by being closed by the locking means 41 when not normally used. Although the bent state is maintained at the part 3A, when the suction of the first locking part 43 and the second locking part 45 is released for use, the casings 1, 2 are returned by the return force F2 of the second connecting member 32. Is opened and returned to a substantially flat state to be stationary, and this open state is stably held by the curved holding force (action) of the second connecting member 32.

  On the other hand, when not in use (in a reception standby state), the casings 1 and 2 are given a closing force equal to or greater than the closing force F1 so that the main surface 1A of the upper casing 1 and the main surface 2A of the lower casing 2 face each other. The first locking portion 43 and the second locking portion 45 can be adsorbed so that the housings 1 and 2 can be closed. In a state where the housings 1 and 2 are closed, the connecting device 3 is bent small, which is suitable for portability.

  And since the latching means 41 is provided at the other ends 1b and 2b of the two casings 1 and 2, compared with the case where the latching means 41 is provided on the outer surface of the casings 1 and 2, the connecting device 3 Distance (ie, the distance from the fulcrum to the action point) increases. Therefore, the force at the point of action, that is, the locking force necessary for holding is minimized. Further, the locking means 41 does not protrude from the outer surfaces of the housings 1 and 2, and the locking means 41 is not caught when being taken in and out of the pocket or the back.

  Therefore, according to the folded-type mobile phone 100 according to the present embodiment, the two casings 1, 2 are opposed to the other ends 1b, 2b of the two casings 1, 2 against the restoring force of the connecting device 3. Since the locking means 41 that holds the bent state is provided, the distance from the coupling device 3 can be maximized compared to the case where the locking means 41 is provided on the outer surface of the casings 1 and 2. As a result, the force required for locking is minimized, the closed state can be reliably maintained, and the locking can be easily released. In addition, since the locking means 41 does not protrude from the outer surfaces of the casings 1 and 2, the locking means 41 is caught and released from the pockets and the back, so that the locking is released. Unintentional opening can be prevented.

Next, a second embodiment of the mobile terminal (folded mobile phone) according to the present invention will be described.
FIG. 6 is an enlarged view of a main part showing a second embodiment provided with a locking means comprising a protrusion and a recess.
In the folded type mobile phone according to this embodiment, a magnet 51 and an attracting member 53 are attached to the opposing surfaces of the overlapping first locking portion 43 and second locking portion 45. That is, the magnet 51 is stuck on the outer surface of the second locking portion 45, and the magnet 51 has a protrusion 51a that protrudes in a direction intersecting the housing opening direction between the other ends 1b and 2b. On the other hand, the suction member 53 is affixed to the inner surface of the first locking portion 43, and the suction member 53 has a recess 53a into which the protrusion 51a is fitted.

  The magnet 51 and the attracting member 53 are locked so that the protrusion 51a is inserted into the recess 53a. On the other hand, when the locking of the magnet 51 and the attracting member 53 is released, the tip of the first locking portion 43 may be pulled up. That is, when a force is applied to remove the protrusion 51a fitted in the recess 53a, the engagement is easily released. When the return force F2 is applied to the housings 1 and 2 in the locked state, the protrusion 51a is only moved in the radial direction of the recess 53a, and therefore cannot be easily removed.

  Therefore, according to this bent type mobile phone, since the protrusion 51a and the recess 53a are fitted in the direction intersecting the opening direction of the other ends 1b and 2b of the casing, the protrusion 51a is in the same direction as the opening direction. Compared with the case where the concave portion 53a is fitted, the restoring force of the coupling device 3 can be resisted by a large force (shearing force), and the bent holding state of the two casings 1 and 2 can be reliably maintained.

Next, a third embodiment of the mobile terminal (folded mobile phone) according to the present invention will be described.
FIG. 7 is an enlarged view of an essential part showing a third embodiment provided with a lid-like locking means.
In the bent type mobile phone according to this embodiment, a bent portion 61 is provided at the base ends of the first locking portion 43 and the second locking portion 45. That is, the first locking portion 43 and the second locking portion 45 are in the form of lid pieces that can be opened and closed by the bent portion 61. The bent portion 61 can be a resin hinge in which the third connecting member 33 extending from the housings 1 and 2 is locally thin. In addition, the bending part 61 is good also as a bellows part which bent the base part several times. By providing such a bent portion 61, the first locking portion 43 and the second locking portion 45 can be easily folded back to the opposite side (bending direction opposite to the overlapping direction).

  The first locking portion 43 and the second locking portion 45 that can be bent by the bending portion 61 are provided with the magnet 47 and the attracting member 49 or the magnet 51 and the attracting member 53. In addition, the first locking portion 43 and the second locking portion 45 are locked without using the magnet 47, the magnet 51, etc., and the tip ends of the first locking portion 43 and the second locking portion 45 are mutually connected. It is good also as what keeps the bending holding state of the two housings | casings 1 and 2 by forming in a hook shape and latching a mutual hook-shaped latching | locking part.

  The first locking part 43 and the second locking part 45 formed with such a bent part 61 are preferably formed, for example, in an unlocked state and in an open state. Since the first locking portion 43 and the second locking portion 45 are formed by extending the third connecting member 33 as described above, the first locking portion 43 and the second locking portion 45 have flexibility and a predetermined elastic force. Therefore, when locking, both the first locking portion 43 and the second locking portion 45 are bent and locked, and when releasing the locking, for example, the first locking portion 43 which is the outside. If only the top is flipped up, the lock is released. And both the 1st latching | locking parts 43 and the 2nd latching | locking part 45 by which latching was cancelled | released will open in the state shown in FIG. 7 with an elastic restoring force.

  Therefore, according to this bent type mobile phone, since the bent portion 61 is provided at the base of the first locking portion 43 and the second locking portion 45 to form a lid piece, when the locking is released, Both the first locking portion 43 and the second locking portion 45 are opened by their own elastic restoring force, so that a favorable unlocking operability is obtained.

Next, a fourth embodiment of the mobile terminal (folded mobile phone) according to the present invention will be described.
FIG. 8 is an enlarged view of an essential part showing a fourth embodiment provided with a locking means comprising a projection (pin) and a recess.
In this portable cellular phone, the third case 70 is attached to the distal end side (the far side from the connecting device) of the lower housing 2 having the microphone 21, and the upper housing having the receiver 11. A fourth locking portion 71 is provided on an upper surface 1C adjacent to the main surface 1A of the upper housing 1 at the front end of 1 (distant from the coupling device).

  The third locking portion 70 includes a belt portion 72 formed of a sheet member and an attracting member 73 provided at the tip of the belt portion 72. Further, the attracting member 73 has a magnetic projection (pin). 74. When the belt portion 72 is bent toward the upper housing 1 when the upper and lower housings 1 and 2 are closed, the pins 74 are directed toward the connecting device 3 (see FIG. 1). That is, the pin 74 protrudes in the direction intersecting the casing opening direction of the upper and lower casings 1 and 2 between the other ends 1b and 2b. The fourth locking portion 71 includes a recess 75 formed on the upper surface 1 </ b> C and a magnet 76 disposed on the bottom of the recess 75.

When the third locking portion 70 and the fourth locking portion 71 are locked, the casings 1 and 2 are closed, the pin 74 is inserted into the recess 75, and the pin 74 is attracted to the magnet 76. The three locking portions 70 and the fourth locking portions 71 are locked.
On the other hand, when the locking between the third locking portion 70 and the fourth locking portion 71 is released, the tip of the third locking portion 70 may be pulled up. That is, when a force is applied to remove the pin 74 fitted in the recess 75, the engagement is easily released. When the return force F2 is applied to the housings 1 and 2 in the locked state, the pin 74 is only moved in the radial direction of the recess 75, and therefore cannot be easily removed.

  Here, the magnet 76 will be described. The magnet 76 is a rectangular parallelepiped, and FIG. 8 shows a cross section in the thickness direction of the casing when the casing is folded and overlapped. The magnet 76 has two poles on the side (front surface) to which the pin 74 is fixed and the opposite side (back surface), and is a so-called double-sided two-pole magnetized magnet.

  The magnetic field lines generated by the magnet 76 at this time pass from the N pole on the front surface through the magnet to the S pole on the back surface, pass through the air (in the air) outside the magnet 76 and go to the N pole on the front surface. There is a magnetic field line and a second magnetic field line from the N pole on the front surface through the magnet to the S pole on the back surface, and from the S pole to the adjacent N pole. In particular, the distribution of the first magnetic field lines, that is, the magnetic flux density, is particularly strong in the region outside the magnet in the thickness direction of the magnet as compared with a magnet magnetized with two poles on one side.

  Accordingly, since the second magnetic field lines exist at the approximate center of the front and back surfaces of the magnet 76, the magnetic flux density increases at the approximate center of the front and back surfaces. In the present embodiment, since the pin 74 is attracted to the magnet 76 across the N pole and S pole on one side, the attracting force for fixing the pin 74 to the magnet 76 can be increased.

  A magnet 76 having a desired magnetic flux density is embedded in the housing 1 by a predetermined distance from the surface of the housing 1. A portable terminal may be stored in a pocket and may be adjacent to a bank magnetic card. If the leakage magnetic flux from the magnet 76 on the surface of the housing 1 is large, the magnetic card may be affected.

  Therefore, in order to increase the attracting force while reducing the magnetic flux density on the surface of the housing 1, in order to attract the pin 74 to the magnet 76 embedded from the surface of the housing 1, from the surface of the housing 1 to the magnet 76. By forming the concave portion 75 for guiding the pin 74, it is possible to simultaneously achieve the application of a predetermined adsorption force and the reduction of the leakage magnetic flux on the surface of the housing 1.

  Therefore, according to the mobile terminal of the fourth embodiment, the pin 74 and the recess 75 are fitted in the direction intersecting the opening direction of the other ends 1b and 2b of the casing, so that the same direction as the opening direction. Compared with the case where the pin 74 and the recess 75 are fitted, the restoring force of the coupling device 3 can be resisted with a large force (shearing force), and the bent holding state of the two casings 1 and 2 is reliably maintained. be able to. Moreover, since there is no locking means protruding from the housing 1, there is no sense of incompatibility even when the housing 1 is pressed against the head, and even if the housing 2 is gripped by the palm, the third locking portion Since it is not necessary to grip 70, gripping is not impaired.

  Furthermore, if a magnetic metal is interposed between the magnet 76 and the receiver 11, the leakage magnetic flux of the magnet 76 does not affect the receiver 11. That is, if a magnetic metal is disposed on the back surface in the thickness direction of the magnet 76, that is, between the magnet 76 and the receiver 11, when the pin 76 is fixed to the magnet 76, a desired attracting force is applied to the magnet 76. Since it is possible to reduce the influence on other components (attenuate the leakage magnetic flux), it is possible to reduce restrictions on component arrangement in the mobile terminal.

  As a modification of the fourth embodiment, a pin 74 is provided on one of the main surface 1A of the housing 1 and the main surface 2A of the housing, a recess 75 is formed on the other, and a magnet 76 is formed on the bottom of the recess 75. May be arranged.

  If the pin 74 is inserted into the recess 75 when the casings 1 and 2 are closed, the pin 74 is attracted to and locked by the magnet 76. At this time, the pin 74 and the recess 75 are fitted in the same direction as the opening direction of the other ends 1b and 2b of the other ends. For example, if the magnetic flux density of the magnet 76 is increased, the closed state of the casings 1 and 2 is achieved. Can be easily maintained.

  In this case, since the distance from the coupling device 3 (that is, the distance from the fulcrum to the action point) increases as described above if it is provided on the housing other end side 1b, 2b far from the coupling device 3, the operation is performed. The force at the point, that is, the locking force required for holding is minimized, and the increase in magnetic flux density can be minimized.

  Further, in the closed state, even if a force is applied in a direction in which the casings rub against each other, the pins 74 are fitted in the recesses 75, so that they do not rub and do not damage the facing casings. On the other hand, since the pin 74 protruding in the vicinity of the operation surface is arranged, the operability may be lowered depending on the arrangement location. In the fourth embodiment, the selection may be made in consideration of the advantages and disadvantages of the former and the latter.

It is a perspective view which shows the external appearance of the portable terminal which concerns on this invention. (A) shows the main body of the portable terminal according to the present invention in an open state and a connecting device provided on the main body, and (b) is an explanatory view showing a state in which the main body is closed. It is center sectional drawing when the portable terminal which concerns on this invention is opened. It is a center sectional view when the portable terminal concerning the present invention is closed. It is a principal part enlarged view of FIG. 4 showing a latching means. It is a principal part enlarged view showing 2nd embodiment provided with the latching means which consists of a processus | protrusion and a recessed part. It is a principal part enlarged view showing 3rd Embodiment provided with the cover piece-like latching means. It is a principal part enlarged view showing 4th Embodiment provided with the latching means which consists of a processus | protrusion (pin) and a recessed part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Two housings 1a, 2a One end 1b, 2b The other end 3 Connecting device 41 Locking means 43 First locking part 45 Second locking part 47, 51 Magnet 51a Projection 53a Recessed part 100 Folding type portable Telephone (mobile terminal)

Claims (2)

A connecting device having a restoring force for returning the two casings from the folded state to the open state while connecting the ends of the two casings in a state of being spaced apart from each other by a predetermined distance;
The other end opposite to the one end of the two casings is provided with a locking means for holding the two casings in a bent state against the restoring force of the coupling device,
Locking means, Ri Do from the first locking portion extending from one of the housing, the first locking portion provided on the other end side of the other of the housing and the second locking portion for locking wear ,
The first locking portion has a protrusion that is formed of a magnetic material and protrudes in a direction intersecting the housing opening direction of the other ends.
The second locking portion has a recess provided on the housing surface and a magnet provided on the bottom of the recess,
A portable terminal, wherein the projection of the first locking portion is attracted to the magnet when inserted into the recess . The magnet is a two-sided and two-pole magnetized magnet having N and S poles on the front and back sides, and the protrusion is adsorbed across both the N and S poles on one side of the magnet. The mobile terminal according to claim 1.

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