JP3988766B2 - Wireless terminal - Google Patents

Description

  The present invention relates to a wireless terminal, in particular, the first case and the second case as components can be folded and opened by a hinge mechanism, and an antenna for wireless communication is attached. Related to wireless terminals.

  Among wireless terminals such as PHS (Personal Handy phone System), products that focus on portability are compact in size, while the handset is removed and the mouthpiece and earpiece are removed. In many cases, the mouth is incorporated into the apparatus main body. On the other hand, there are many requests to display various information such as text information and images in an easy-to-see size and to smoothly input various data, and there are two cases in which the apparatus main body is configured to meet such a request. Many products are folded and opened for use. In such a form of wireless terminal, communication is often performed in such a manner that an apparatus main body to which a mouthpiece or a mouthpiece is attached is in close contact with the head. At this time, there is a problem that the radio wave emitted from the antenna is absorbed by the human body and the effectiveness of the antenna deteriorates because the antenna portion is disposed at a position very close to the head.

  For example, a wireless terminal in which a first case and a second case can be freely opened and closed by a hinge mechanism and an antenna is embedded in these cases has been disclosed as a first proposal (see, for example, Patent Document 1). . In this first proposal, when a call is made with this wireless terminal pressed against the head, the antenna is located very close to the human body, so the effectiveness is extremely low, and power is wasted. End up. Thus, several wireless terminals have been proposed in which the antenna is as far away from the human body as possible when wireless is used (see, for example, Patent Document 2).

  FIG. 10 shows a second proposed wireless terminal. In this wireless terminal 100, a first case 101 and a second case 102 that constitute the device main body are disposed so as to be freely opened and closed by a hinge mechanism 103. In this figure, the state in which the second case 102 is closed with the first case 101 is indicated by a two-point difference line, and the opened state is indicated by a solid line. An antenna unit 104 is provided on the side of the second case 102 so as to be juxtaposed therewith. The antenna unit 104 is independently attached to the hinge mechanism 103, and is independently rotated with respect to this. Therefore, as indicated by an arrow 105 in this figure, the antenna unit 104 is rotated to a wider angle with respect to the first case 101 than the second case 102 during a call, so that the radio wave emitted from the antenna unit 104 can be reduced. Increases effectiveness.

  However, in the wireless terminal 100 shown in FIG. 10, the antenna unit 104 is provided on the side of the second case 102 so as to be arranged in parallel therewith. Therefore, if the antenna unit 104 is designed not to protrude from the main body of the device when the first case 101 is closed, the width of the second case 102 and the antenna unit 104 (the axis of the hinge mechanism 103) The length in the direction) needs to be substantially equal to the width of the first case 101. Therefore, the width of the second case 102 is narrower than the width of the first case 101 by the width of the antenna unit 104. In the normal case, the second case 102 is provided with a display such as a liquid crystal display. For this reason, there exists a fault that the size of a display must be made relatively narrow.

  FIG. 11 shows a wireless terminal of a third proposal proposed as a solution to such a drawback (see, for example, Patent Document 3). In the wireless terminal 110 according to the third proposal, the first case 111 and the second case 112 can be opened and closed by the hinge mechanism 113. In the case of the third proposal, unlike the wireless terminal 100 shown in FIG. 10, the first case 111 is longer, and the antenna hinge portion is provided at the tip of the protruding portion 114 to which the hinge mechanism 113 is attached. An antenna 116 is attached via 115 so as to be rotatable by 90 degrees. The antenna 116 is arranged in parallel with the shaft 118 of the hinge mechanism 113 when housed, and is rotated in the direction of the arrow 119 when used wirelessly to be directed in a direction perpendicular to the shaft 118 so that the tip 116A is pulled out.

  In the wireless terminal 110 of the third proposal, since the width of the second case 110 can be made equal to the width of the first case, the display size can be made larger than that of the first proposal. . This second proposal also uses a spring (not shown) to open the first case 111 and the second case 112 at a predetermined angle using a spring (not shown) to keep these cases closed in a non-calling state. Uses magnets. Similarly, a mechanism for opening the antenna 116 is realized by using another spring (not shown), and another magnet is used to hold this in parallel with the shaft 118 in a non-calling state.

In the wireless terminal 110, when the first case 111 and the second case 112 are closed and the slide member (not shown) is slid in a non-calling state in which the antenna 116 is housed, the two types of magnets described above are attracted. Release the holding action. As a result, the first case 111 and the second case 112 are opened to an angle suitable for the use state, and the antenna 116 is rotated to a position perpendicular to the shaft 118. In this state, the user pulls out the antenna 116 and transmits / receives data for a call.
Japanese Patent Laid-Open No. 11-136015 (paragraph 0016, FIG. 1) Japanese Patent No. 2688881 (paragraph 0013, FIG. 1) Japanese Patent No. 2658906 (paragraph 0018, FIG. 1)

  The radio terminal 110 shown in FIG. 11 has a structure in which the antenna 116 is accommodated in the width direction of the first and second cases 111 and 112. Therefore, the length during storage is much shorter than the length during use. For this reason, it is necessary to stretch and use it, which is troublesome. Of course, in the technique disclosed in Japanese Patent Laid-Open No. 11-136015, the antenna is embedded in the main body of the wireless terminal, so that the length itself can be sufficiently secured, but the antenna is effective. There was a problem that the property became extremely low.

  As described above, the portable telephone has been mainly described. However, there is a similar problem with other wireless terminals such as a small computer in which a microphone and a speaker are incorporated in the apparatus main body to reduce the size.

  Accordingly, an object of the present invention is to provide a radio terminal that takes into consideration not only the minimum usable antenna length but also the effectiveness of the antenna when the openable case is opened.

  In the first aspect of the present invention, (a) the first case, (b) the hinge mechanism disposed at the end of the first case, and (c) the hinge mechanism disposed at the end, A second case that is openable and closable within a range from the closed state to the first case to a first angle smaller than 180 degrees; and (d) a hinge mechanism disposed at the end, A radio communication antenna located on the opposite side of the surface on which the case and the second case are closed and openable and closable in a second angle range with respect to the opposing surface of the second case; ) An antenna rotation driving means for arbitrarily changing the angle of the facing surface of the second case and the antenna for wireless communication within a range up to the second angle with the hinge mechanism as a rotation center; and (f) an antenna for wireless communication. Radio wave intensity measuring means for identifying the radio wave intensity received by Measured radio wave value of the radio wave intensity measuring means is thereby provided a rotational position control means for controlling the rotational position by the rotation driving means for the antenna so that the maximum in the wireless terminal.

  That is, according to the first aspect of the present invention, there is provided an antenna rotation driving means for arbitrarily changing the angle of the radio communication antenna within the range up to the second angle with the hinge mechanism as the rotation center, and receiving the antenna. Radio wave intensity measuring means for specifying the radio wave intensity is prepared, and the rotational position of the antenna rotation driving means is controlled so that the radio wave value measured by the radio wave intensity measuring means is maximized. Thereby, communication can be performed with the radio wave in a good state.

  According to a second aspect of the present invention, in the wireless terminal according to the first aspect, (a) a case rotation driving means that acts in a direction to open the first and second cases to the first angle with the hinge mechanism as a rotation center; (B) a case rotation driving means trigger means for starting driving of the case rotation driving means when the first and second cases reach the fourth angle in the middle of opening to the first angle; It is characterized by having it.

  That is, in the invention described in claim 2, the opening operation of the first and second cases of the wireless terminal described in claim 1 is performed by the case rotation driving means, and the case rotation driving means is driven first. The operation is started when the first and second cases reach the fourth angle in the middle of opening to the first angle.

In the invention described in claim 3, claim 1 in a wireless terminal, comprising: a case for rotary drive means acting in the direction of opening the first and second casing to the first angle as a rotation around the hinge mechanism, the first A button switch disposed on at least one of the surfaces to be closed of the case and the second case, and at least one of the button switches in a pressed state in a state in which the first and second cases are closed, And a case rotation driving means triggering means for starting the driving of the case rotation driving means when the pressed state of the button switch is released .

  That is, in the invention according to claim 3, the rotation for the case is detected by detecting the operation of the user opening the case by releasing one of the presses using any one of the button switches arranged on the case. The driving of the driving means is started. In order to distinguish the operation of the user opening the case from the operation of releasing the normal button switch, for example, it is only necessary to detect that the user has pressed the button for a predetermined time or longer.

  According to the first aspect of the present invention, there is provided an antenna rotation driving means for arbitrarily changing the angle of the radio communication antenna within the range up to the second angle with the hinge mechanism as the rotation center, and reception of the antenna. Radio wave intensity measuring means is specified to identify the intensity of the radio wave to be transmitted, and the rotation position of the antenna rotation driving means is controlled so that the value of the radio wave measured by the radio wave intensity measuring means is maximized. Communication can be performed with the radio wave in a good state within the range.

  According to the second aspect of the present invention, the opening operation of the first and second cases is performed by the case rotation driving means, and the case rotation driving means is driven by the first and second cases. Since the start is made when the case reaches the fourth angle in the middle of opening to the first angle, the wireless terminal can be automatically set to a communicable state.

  Further, according to the invention described in claim 3, by using any one of the button switches arranged on the case, it is detected that the user has opened the case by releasing the press, and the case is detected. Since the drive of the rotary drive means is started, it is not necessary to provide a special switch, and the hardware cost can be reduced.

  Hereinafter, the present invention will be described in detail with reference to examples.

FIG. 1 shows a state in which two cases of a wireless terminal in an embodiment of the present invention are opened from the operation unit side. In this wireless terminal 200, a first case 201, a second case 202, and an antenna unit 203 arranged behind the second case 202 are arranged so as to be rotatable within a predetermined angle range by a hinge mechanism 204. It is a thing. Here, the first case 201 has a button operation unit 211 in which a plurality of button switches are arranged on a first surface as a surface to be closed with the second case 202, and the first case 201 and the first case 201 A mouthpiece 212 composed of a microphone (not shown) is arranged at a location corresponding to the mouth of a speaker (not shown) when a call is made with the case 202 of the second case 202 opened at a _first angle θ ₁ as shown. Yes. In the second case 202, the liquid crystal display unit 214 is disposed at the approximate center of the first surface as the surface to be closed with the first case 201. In addition, an earpiece portion 215 including a speaker (not shown) is arranged at a location corresponding to the speaker's ear in a call state. The antenna unit 203 is disposed so as to form a _second angle θ ₂ with a second surface (not shown) opposite to the first surface of the second case 202.

  A protrusion 216 is disposed in the vicinity of the mouthpiece 212 on the first surface of the first case 201. In addition, a hooking hole 217 for latching the second case 202 in a state where the protrusion 216 is inserted is formed at a position facing the second case 202. A slidable latch release piece 218 is disposed on the side surface of the second case 202 in the vicinity of the latch hole 217. When the first case 201 and the second case 202 are closed, the protrusion 216 is inserted into the latching hole 217 and latched, and the both are held in a closed state. When the latch release piece 218 is slid in the axial direction of the antenna portion 203, the latch is released by a known mechanism, and the first case 201 and the second case 202 can be opened as shown in the figure. A mechanism for this will be described later.

  FIG. 2 shows a state where two cases of the wireless terminal shown in FIG. The antenna unit 203 includes a head 221 in which a tip of an antenna element (not shown) is embedded, and an antenna unit main body 222 that is widened toward a lower end closer to the hinge mechanism 204. An incoming lamp portion 223 that accommodates a lamp that lights up or blinks when receiving an incoming call is disposed at a relatively upper position of the antenna portion main body 222. The antenna element is accommodated from the head portion 221 to the vicinity of the lower end portion along the longitudinal direction of the antenna portion main body 222, and the length of the antenna element protrudes from the longitudinal lengths of the first case 201 and the second case 202. The length of the head 221 is slightly longer, and the function as an antenna can be sufficiently exhibited by itself.

FIG. 3 shows an antenna part and a hinge mechanism part attached thereto. The antenna element 231 reaches from the head part 221 of the antenna part 203 to the lower part of the antenna part main body 222. From here, the antenna element cable 231 passes through the inside of the annular shaft part 232 ₁ constituting the hinge mechanism and is coated with resin. 233 is taken out to the outside. The incoming lamp section 223 has a light emitting diode 235 and a light emission control line 236 for giving a signal for controlling light emission embedded in the antenna section main body 222. The light emission control line 236 is the other annular shaft. A light emission control cable 237 coated with resin is taken out to the outside through the inside of the portion 232 ₂ . The antenna element cable 233 and the light emission control cable 237 are connected to a connector (not shown) that leads to the inside of the first case 201 through a gap (not shown) in the hinge mechanism 204 shown in FIG. . And it connects with the antenna terminal and light emission control terminal of the printed circuit board which are not shown in figure in the 1st case 201 via this connector.

In the antenna unit 203 of this embodiment having such a structure, the antenna unit 231, the light emitting diode 235, and the light emission control line 236 are arranged from the head 221 to the antenna unit main body 222, the two annular shafts 232 ₁ and 232 ₂ . In addition, it is molded integrally with resin. For this reason, while maintaining the strength of the antenna portion 203 itself, the entire portion can be formed thin and small.

FIG. 4 shows the folded state of the wireless terminal of this embodiment. A second case 202 is overlapped on the first case 201, and an antenna unit 203 is disposed on the second surface of the second case 202. For this reason, when the wireless terminal 200 is in a non-calling state (standby state), it can have a compact shape just like a conventional portable telephone of this type. The first case 201 and the second case 202 are given a habit of opening them by the first angle θ ₁ shown in FIG. 1 by a case opening / closing spring 241. The second case 202 and the antenna unit 203 are given a habit of opening them by the antenna opening / closing spring 242 by the second angle θ ₂ shown in FIG. The angle setting such that the second case 202 and the antenna unit 203 cannot rotate more than the first angle θ ₁ or the second angle θ ₂ is a rotational direction such as providing unevenness on the sliding surface of the rotation shaft of the hinge mechanism 204. This can be realized by a well-known method of providing the regulation. Therefore, the first case 201 and the second case 202 are rotated by the hinge mechanism 204 by the first angle θ ₁ by sliding the latch release piece 218 shown in FIG. Can be made.

By the way, an N-pole magnet 251 is embedded in a predetermined portion facing the second case 202 in the antenna unit 203, and a polarity opposite to this is placed in a position facing the second case 202. An S-pole magnet 252 is embedded. A coil 253 is wound around the S-pole magnet 252 and an excitation circuit 254 for exciting the coil 253 to a reverse polarity is connected thereto. The pair of magnets 251 and 252 are set so that the antenna opening / closing spring 242 attracts with a magnetic force that resists the force to open the antenna portion 203. On the other hand, when the excitation circuit 254 causes an excitation current to flow through the coil 253, even if it is a relatively short time, the magnet 252 has an action of canceling out the magnetic force, or a magnetic force with which the force of the antenna opening / closing spring 242 is superior. It changes to a weakening magnetic force. Therefore, when the excitation circuit 254 is activated, the antenna portion 203 is released from the close contact state with the second case 202 by the action of the antenna opening / closing spring 242, and rotates by the second angle θ ₂ described above.

FIG. 5 is a view of cutting the hinge mechanism at a predetermined position in a direction perpendicular to the central axis in order to explain the state of rotation control of the hinge mechanism. A first annular shaft portion 261 constituting a part of the hinge mechanism 204 disposed at one end of the first case 201 is fixed to the center shaft 262. A protrusion 264 made of a conductor is provided at a predetermined position on the outer peripheral surface of the first annular shaft portion 261, and the top of the projection 264 is freely rotatable at a predetermined interval further outside the first annular shaft portion 261. Is in sliding contact with the inner surface of the second annular shaft portion 266. Two protrusions 267 and 268 protrude from the inner surface of the second annular shaft portion 266 toward the central axis. The second annular shaft portion 266 is disposed at one end of the second case 202 and forms a part of the hinge mechanism 204. Assuming that the first case 201 is fixed in this figure, the second annular shaft portion 266 can freely rotate in the direction of the arrow 269 within a range in which the projection 264 is restricted by the two projections 267, 268. It is. At this time, the rotatable angle range is the first angle θ ₁ .

  A conductor 271 is attached at a position relatively close to the protrusion 267 on the inner surface of the second annular shaft portion 266. Similar to the conductor 271, electric wires 272 and 273 are electrically connected to a protrusion 264 made of a conductor, and these electric wires 272 and 273 are connected to an excitation circuit 254 via a battery 274. Therefore, if the first case 201 and the second case 202 are opened by sliding the latch release piece 218 shown in FIG. 1 etc. and releasing the latch of the projection 216 (FIG. 1), the projection 264 As shown in FIG. 5, the protrusion 264 and the conductor 271 are in electrical contact only for a relatively short time immediately before the rotation contacts the protrusion 267 and stops rotating. During this short time, the excitation circuit 254 is energized and the coil 253 shown in FIG. 4 is excited.

FIG. 6 shows a state immediately before the first case and the second case constituting the wireless terminal are rotated by the first angle θ ₁ by the hinge mechanism. When the angle θ formed by the first case 201 and the second case 202 is smaller than the first angle θ ₁ by a predetermined angle or more, the N-pole magnet 251 and the S-pole magnet 252 are attracting each other. The case 202 and the antenna portion 203 are in close contact with each other.

FIG. 7 illustrates a state after the second case and the antenna unit have been rotated by the _second angle θ ₂ . At the time when the second case 202 and the antenna unit 203 are rotated by the second angle θ ₂ and stopped, the first case 201 and the second case 202 are rotated by the first angle θ ₁ . That is, by simply sliding the latch release piece 218 shown in FIG. 1 and the like, the user can immediately operate the button operation unit 211 (FIG. 1) to respond to an incoming call or start a transmission operation. In addition, in this embodiment, the excitation circuit 254 is excited for a very short time, so that power consumption is small even when the opening / closing operation of the wireless terminal 200 is repeated.

Modified example

  FIG. 8 shows the wireless terminal viewed from the operation unit side in a state where the two cases in the modified example of the present invention are opened. In the radio terminal 200A of this modification, the same reference numerals are given to the same parts as in the previous embodiment, and description thereof will be omitted as appropriate. In this modification, a protrusion 302 is provided at the surface position of the second case 202A facing the specific button 301 of the button operation unit 211 of the first case 201A. A first motor 304 and a second motor 305 incorporating a speed reduction mechanism are disposed in the gap of the hinge mechanism 204A. The first motor 304 is in charge of opening and closing operations of the first case 201A and the second case 202A. The second motor 305 is in charge of opening and closing operations of the second case 202A and the antenna unit 203A.

FIG. 9 shows the main part of the circuit of the wireless terminal of this modification. The antenna reception level detection circuit 311 is a circuit that detects the reception level during communication obtained from the antenna unit 203A shown in FIG. The antenna rotation angle control circuit 312 controls the second motor rotation control circuit 313 to control the second motor 305 under the condition that the user selects a mode for controlling the rotation angle at which the antenna sensitivity is optimal. Is a circuit that performs such control that the rotation at the highest reception level is detected while the rotation control is continuously performed in the vicinity of the angle while the angle is periodically rotated by a small angle in the forward and reverse directions. The specific button press release detection circuit 314 detects the press release of the protrusion 302 when the long press of the specific button 301 shown in FIG. 8 is released, and instructs the first motor rotation control circuit 315. Thus, the rotation of the first motor 304 is started. As a result, when the user tries to open the first case 201A and the second case 202A, this is detected, and control is performed to open these cases 201A and 202A by the first angle θ ₁ described above. At this timing, the control of the second motor rotation control circuit 313 is interlocked. As a result, it is possible to perform control such that the second case 202A and the antenna unit 203A are opened by the second angle θ ₂ .

  When the user performs a predetermined operation on the button operation unit 211, the first and second motor rotation control circuits 315 and 313 perform circuit operations opposite to those described above. As a result, the first case 201A, the second case 202A, the second case 202A, and the antenna unit 203A are controlled to return to the stored state as shown in FIG.

In this modification, two motors, the first motor 304 and the second motor 305, are used, but the first case 201A and the second motor are switched by switching the target to be driven using one motor. Both the opening / closing operation of the case 202A and the opening / closing operation of the second case 202A and the antenna portion 203A can be performed by one motor. Alternatively, only the opening / closing operation of the second case 202A and the antenna unit 203A may be automatically performed using only the second motor 305. In this case, the second motor 305 may be driven when the first case 201A and the second case 202A are opened to the first angle θ ₁ or a predetermined angle close thereto. Further, in the modified example, the antenna unit 203A controls the rotation angle only in the direction in which the first case 201A and the second case 202A open and close to adjust the reception sensitivity of the antenna. However, the antenna unit 203A also rotates in the direction orthogonal thereto. Of course, the angle may be controlled. Further, in the embodiment, the N-pole magnet 251 is arranged in the first case 201 and the S-pole magnet 252 is arranged in the second case 202, but it is natural that the polarity may be reversed.

  In the modified example, the timing for operating the excitation circuit by electrical contact is set in FIG. 5, but the photosensor is used in the same principle, and the timing for operating the excitation circuit is set by turning on / off the photosensor. You may do it. In the embodiment, the first case 201A and the second case 202A are opened and closed by releasing the mechanical latch. However, as described in the conventional proposal, the attractive force is controlled by controlling the position of the magnet. The same function can be realized by changing. Further, although the antenna has been described as having a fixed length in the embodiments, it is a matter of course that the length may be changed as required. In the modification, the motor is incorporated in the hinge mechanism, but may be housed in any case. In addition to the motor, other parts such as a solenoid can naturally be used.

  Furthermore, in the embodiments and the modifications, the portable telephone has been described as a wireless terminal. However, the present invention can be similarly applied to other wireless terminals having a wireless function and a function of inputting or outputting voice. Needless to say, it can be done.

It is the perspective view which showed the radio | wireless terminal of the state in which two cases in one Example of this invention were opened from the operation part side. It is the perspective view which looked at the radio | wireless terminal of the state in which the two cases in a present Example were opened from the antenna part. It is the perspective view which showed the antenna part of a present Example, and the part of the hinge mechanism attached to this. It is the side view which showed the state by which the radio | wireless terminal of the present Example was folded. It is sectional drawing which cut | disconnected this in the direction orthogonal to a central axis in the predetermined position in order to demonstrate the mode of rotation control of a hinge mechanism. It is the side view showing the state just before the 1st case and 2nd case which comprise a radio | wireless terminal in a present Example rotate only 1st angle (theta) ₁ by a hinge mechanism. It is a side view showing the state after a 2nd case and an antenna part rotated only 2nd angle (theta) ₂ in a present Example. It is the perspective view which looked at the radio | wireless terminal of the state in which the two cases in the modification of this invention were opened from the operation part side. It is a block diagram showing the principal part of the circuit of the radio | wireless terminal in a modification. It is the side view showing the radio | wireless terminal by the conventional 2nd proposal. It is a perspective view showing the radio | wireless terminal by the conventional 3rd proposal.

Explanation of symbols

200, 200A Wireless terminal 201, 201A First case 202, 202A Second case 203, 203A Antenna portion 204, 204A Hinge mechanism 212 Mouthpiece portion 215 Earpiece portion 216, 264, 267, 268, 302 Protrusion 217 Stop hole 218 Hook release piece 231 Antenna element 232 Annular shaft portion 241 Case opening / closing spring 242 Antenna opening / closing spring 251 N pole magnet 252 S pole magnet 253 Coil 271 Conductor 274 Battery 301 Specific button 304 First motor 305 Second motor 311 antenna reception level detection circuit 312 antenna rotation angle control circuit 313 second motor rotation control circuit 314 specific button press release detection circuit 315 first motor rotation control circuit θ ₁ first angle θ ₂ second angle

Claims (3)

The first case,
A hinge mechanism disposed at an end of the first case;
A second case in which the hinge mechanism is disposed at an end, and is openable and closable in a range from a state of being closed to the first case to a first angle smaller than 180 degrees;
The hinge mechanism is disposed at an end, located on the opposite side to the surface where the first case and the second case are closed, and in a second angle range with respect to the opposing surface of the second case. An antenna for wireless communication that can be freely opened and closed;
An antenna rotation drive means for arbitrarily changing the angle of the opposing surface of the second case and the antenna for wireless communication within a range up to the second angle with the hinge mechanism as a rotation center;
Radio wave intensity measuring means for specifying the intensity of radio waves received by the antenna for wireless communication;
A wireless terminal comprising: a rotation position control means for controlling a rotation position by the rotation drive means for the antenna so that the value of the radio wave measured by the radio wave intensity measurement means is maximized. Rotation driving means for case acting in a direction to open the first and second cases to the first angle with the hinge mechanism as a rotation center;
And a case rotation drive means trigger means for starting the drive of the case rotation drive means when the first and second cases reach a fourth angle in the middle of opening to the first angle. The wireless terminal according to claim 1. Rotation driving means for case acting in a direction to open the first and second cases to the first angle with the hinge mechanism as a rotation center;
A button switch disposed on at least one of the surfaces to be closed of the first case and the second case;
A case where at least one of the button switches is in a pressed state with the first and second cases closed, and the driving of the case rotation driving means is started when the pressed state of the button switch is released. Rotation drive means trigger means
The wireless terminal according to claim 1 , further comprising:

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