JP2005295072A - Arm-mounted radio - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily handle an arm-mounted radio device mounted on an arm without increasing the manufacturing cost.
A communication device body 3 for transmitting and receiving signals, a mounting body 5 for mounting the communication device body 3 on an arm W, and an antenna portion 13 provided so as to protrude from a side surface 3c of the communication device body 3. The antenna portion 13 extends in a direction away from the back surface 3a of the communication device main body 3 that contacts the arm W as it goes from the proximal end side to the distal end side of the antenna portion 13. A featured arm-mounted radio device 1 is provided.
[Selection] Figure 2

Description

The present invention relates to an arm-mounted radio device mounted on an arm.

In recent years, there is a wireless communication device (arm-mounted wireless device) such as a mobile phone that can be worn on the wrist as in the case of a wristwatch (see, for example, Patent Document 1). This wireless communication device is equipped with a whip antenna and a helical antenna that transmit and receive radio waves, but in a state where a helical antenna etc. is arranged in close proximity to various electronic components arranged inside the human body or wristwatch body The sensitivity of the antenna deteriorates. For this reason, conventionally, a helical antenna or the like is provided so as to protrude vertically from the upper surface of the communication device main body.
Further, as this type of wireless communication device, there is also a wireless communication device in which a patch antenna with little deterioration in antenna characteristics is provided inside the mounting body even when the communication device body is mounted on the arm by the mounting body (for example, Patent Documents). 2).
JP-A-11-177328 JP 2002-204119 A

However, in the wireless communication device described in Patent Document 1, since the protruding amount of the helical antenna protruding from the upper surface of the communication device main body is large, there is a possibility that the helical antenna is caught when the wireless communication device is mounted on the arm. There is a problem that the handling of the wireless communication device becomes troublesome.
In addition, in the wireless communication device described in Patent Document 2, the patch antenna is provided inside the mounting body. However, the patch antenna is more expensive than the helical antenna or the like, so that the manufacturing cost of the wireless communication device increases. There's a problem.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an arm-mounted radio device that can be easily handled without increasing the manufacturing cost.

In order to achieve the above object, the present invention provides the following means.
An arm-mounted radio device of the present invention is provided with a communication device main body for transmitting and receiving signals, a mounting body for mounting the communication device main body on an arm, and protruding from a side surface of the communication device main body or the mounting body. The antenna unit extends in a direction away from the back surface of the communication device main body or the mounting body that contacts the arm as the antenna unit goes from the proximal end side to the distal end side of the antenna unit. It is characterized by that.
According to the arm-mounted radio device according to the present invention, the antenna unit protrudes from the side surface of the communication device main body or the mounting body and extends in a direction away from the back surface. The tip of the part is arranged at a position away from the arm, and the sensitivity deterioration of the antenna part can be suppressed.

In addition, the antenna unit is a so-called whip antenna or helical antenna that protrudes outward from the communication device main body or the mounting body, so it is cheaper than the patch antenna provided inside the communication device main body or the mounting body, and the arm-mounted radio device An increase in manufacturing cost can be prevented.
Further, the extending direction of the antenna part is a direction that forms an acute angle with respect to a tangent to the back surface adjacent to the mounting position of the antenna part.

According to the arm-mounted radio device according to the present invention, since the antenna portion extends in a direction inclined with respect to the tangent to the back surface of the communication device main body or the mounting body, the tip portion of the antenna portion is securely attached to the back surface or the arm. In addition, the projecting length of the antenna unit projecting from the surface of the communication device main body or the mounting body located on the opposite side of the back surface can be reduced.
Further, the inclination angle of the antenna part in the extending direction with respect to the back surface is defined as 0 ° <θ1 ≦ 45 °, where θ1.

In the arm-mounted radio device according to the present invention, the inclination angle θ1 is set to 0 ° <θ1 ≦ 45 ° because the arm-mounted radio device is attached to the arm when the inclination angle θ1 is 0 °. In this case, the distance between the tip of the antenna unit and the arm may be close, and the sensitivity of the antenna unit is deteriorated. When the inclination angle θ1 is larger than 45 °, the length of the antenna portion protruding from the surface of the communication device main body or the mounting body becomes large when the arm-mounted radio is mounted on the arm, and the arm This is because the handling of the wearable wireless device becomes troublesome.
In addition, the antenna unit is swingably attached to the side surface in the range of the inclination angle θ1.

According to the arm-mounted radio apparatus according to the present invention, the antenna unit is swung so that the inclination angle θ1 with the back surface of the communication device main body or the mounting body changes, so that the arm-mounted radio apparatus can be used in accordance with the use situation of the arm-mounted radio apparatus. The projecting length and sensitivity of the antenna portion can be adjusted.
That is, in the state where the arm-mounted radio is mounted on the arm, when the user decreases the protruding length of the antenna unit protruding from the surface of the communication device main body or the mounting body, the inclination angle θ1 is decreased. The antenna portion may be swung. In order to improve the sensitivity of the antenna unit, the antenna unit may be swung in a direction in which the inclination angle θ1 increases.

In addition, the antenna portion extends in a direction away from the side surface of the communication device main body or the mounting body as it goes from the proximal end side to the distal end side of the antenna portion.
According to the arm-mounted radio device according to the present invention, since the antenna portion extends in a direction away from the side surface of the communication device main body or the mounting body, the tip portion of the antenna portion is positioned away from the communication device main body or the mounting body. Will be placed. For this reason, even if various electronic components for operating the arm-mounted radio device are provided inside the communication device main body or the mounting body, it is possible to suppress the electromagnetic waves generated from these electronic components from acting on the tip of the antenna unit. . That is, it is possible to suppress deterioration in sensitivity of the antenna unit.

In addition, the antenna unit is a so-called whip antenna or helical antenna that protrudes outward from the communication device main body or the mounting body, so it is cheaper than the patch antenna provided inside the communication device main body or the mounting body, and the arm-mounted radio device An increase in manufacturing cost can be prevented.
Further, the extending direction of the antenna part is a direction that forms an acute angle with respect to a tangent line of the side surface located at a mounting portion of the antenna part.
According to the wrist-worn radio according to the present invention, the antenna portion extends in a direction in which the antenna portion is inclined with respect to the tangent to the side surface of the communication device main body or the mounting body. The projecting length of the antenna portion projecting from can be reduced.
The inclination angle of the antenna in the extending direction with respect to the side surface is defined as 0 ° <θ2 ≦ 45 °, where θ2 is 0 ° <θ2 ≦ 45 °.

In the arm-mounted radio device according to the present invention, the inclination angle θ2 is set to 0 ° <θ2 ≦ 45 °. When the inclination angle θ2 is 0 °, the tip of the antenna portion is attached to the communication device main body or the attachment. This is because the sensitivity of the antenna portion deteriorates due to the influence of various electronic components because the body is located close to the body. Further, when the inclination angle θ2 is larger than 45 °, the projecting length of the antenna portion from the side surface becomes large, and it is difficult to reduce the size of the arm-mounted radio device.
In addition, the antenna unit is attached so as to be swingable within a range of an inclination angle θ2.

According to the arm-mounted radio device according to the present invention, by swinging the antenna unit so that the inclination angle θ2 with respect to the side surface changes, the protruding length of the antenna unit can be changed according to the use situation of the arm-mounted radio device. Sensitivity can be adjusted.
That is, when the user reduces the protruding length of the antenna portion protruding from the side surface of the communication device main body or the mounting body with the arm mounted, the antenna portion is swung in the direction in which the inclination angle θ2 decreases. Just do it. In order to improve the sensitivity of the antenna unit, the antenna unit may be swung in a direction in which the inclination angle θ2 increases.
The antenna unit may be arranged so as to extend in an arrangement direction of the communication device main body and the mounting body along a tangent to the back surface adjacent to the mounting position of the antenna unit.

  According to the arm-mounted radio device according to the present invention, in a state where the arm-mounted radio device is mounted on the arm so that the communication device main body and the mounted body are arranged in the circumferential direction of the arm, the antenna unit is separated from the arm surface. Therefore, the distal end portion of the antenna portion is surely disposed at a position away from the back surface and the arm. Therefore, it is possible to reliably suppress the sensitivity deterioration of the antenna unit. In addition, since the antenna portion is arranged so as to extend along the tangent line on the back surface, the protruding length of the antenna portion protruding from the surface of the communication device main body or the mounting body is reduced, or the communication device main body or the attachment The antenna portion can be arranged so as not to protrude from the surface of the body.

Further, the protruding length of the tip of the antenna unit protruding from the surface of the communication device main body or the mounting body is 0 mm or more and 10 mm or less.
The protruding length of 0 mm indicates that the tip of the antenna portion does not protrude from the surface of the communication device main body or the mounting body, and the tip of the antenna portion is located below the surface. It also includes the state.

In the arm-mounted radio device according to the present invention, the projecting length of the tip of the antenna unit is set to 10 mm or less. When the projecting length is longer than 10 mm, the arm-mounted radio device is mounted on the arm. This is because the handling of the wrist-worn radio is troublesome in the state.
Further, the side surface located at the mounting portion of the antenna portion is curved so as to bulge outward, and the extending direction of the antenna portion coincides with the tangential direction of the side surface at the mounting portion. It is characterized by.

According to the wrist-worn radio according to the present invention, the side surface to which the antenna unit is attached is curved, and the extending direction of the antenna unit coincides with the tangential direction of the side surface. In addition, the tip of the antenna portion can be reliably arranged at a position away from the mounting body. Therefore, it is possible to reliably suppress sensitivity deterioration of the antenna unit due to electromagnetic waves generated from various electronic components provided in the communication device main body. In addition, since the extending direction of the antenna portion coincides with the tangential direction of the side surface, the protruding length of the antenna portion protruding from the side surface of the communication device main body or the mounting body can be reduced.
In addition, the antenna portion can be expanded and contracted in the extending direction.

According to the wrist-worn radio according to the present invention, the projecting length and sensitivity of the antenna can be adjusted according to the usage status of the arm-worn radio by extending and retracting the antenna.
That is, in order to improve the sensitivity of the antenna unit, the antenna unit may be extended and the tip of the antenna unit may be further separated from the arm, the communication device main body, and the back and side surfaces of the mounting body. Moreover, what is necessary is just to shrink | contract an antenna part, when reducing the protrusion length of the antenna part which protrudes from the surface of a communication apparatus main body or a mounting body.

In addition, the mounting body includes a first housing rotatably attached to the communication device body on one end side of the side surface and the back surface of the communication device body, and the side surface and the back surface of the communication device body. The communication device main body or the second housing includes a second housing rotatably attached to the communication device main body on the end side, and a speaker for calling is provided in the first housing. A telephone microphone is provided on at least one of the above.
According to the wrist-worn radio device according to the present invention, since the microphone is provided in the communication device main body or the second housing different from the first housing provided with the speaker, the microphone and the speaker are connected. They can be spaced apart from each other. Therefore, when making a call, the microphone and the speaker can be arranged close to the user's mouth and ear, respectively. Therefore, a good call state can be ensured.

In addition, the mounting body includes a first housing rotatably attached to the communication device body on one end side of the side surface and the back surface of the communication device body, and the side surface and the back surface of the communication device body. A second casing rotatably attached to the communication device main body is provided on the end side, and the arm is sandwiched between the first casing and the second casing when attached to the arm. Features.
According to the arm-mounted radio device according to the present invention, the communication device main body can be fixed to the arm by sandwiching the arm between the first and second housings constituting the mounting body. That is, since the communication device main body can be fixed to the arm without engaging the first and second housings with each other, the arm-mounted radio can be easily attached to and detached from the arm.

According to the present invention, since the projecting length of the antenna unit projecting from the surface of the communication device main body or the mounting body is reduced, it is possible to prevent a problem that the antenna unit is caught when the arm-mounted radio device is mounted on the arm. Moreover, since the front-end | tip part of an antenna part can be distribute | arranged to the position spaced apart from the arm, the sensitivity degradation of an antenna part can be suppressed. Therefore, the arm-mounted radio can be easily handled without increasing the manufacturing cost of the arm-mounted radio.
In particular, by setting the protruding length of the antenna portion protruding from the surface of the communication device main body or the mounting body to 10 mm or less, it is possible to reliably handle the arm-mounted radio device reliably.

  In addition, when the antenna unit is protruded in a direction away from the side surface of the communication device main body or the mounting body, electromagnetic waves generated from various electronic components provided inside the communication device main body or the mounting body are Therefore, it is possible to suppress deterioration in sensitivity of the antenna unit. And since the protrusion length of the antenna part which protrudes from the side surface of a communication apparatus main body or a mounting body becomes small, size reduction of an arm mounting type | mold radio | wireless machine can be achieved.

  Further, when the inclination angle θ1 is 0 ° <θ1 ≦ 45 °, the sensitivity of the antenna unit can be reliably suppressed, and the arm-mounted radio can be easily handled. Furthermore, when the inclination angle θ2 is 0 ° <θ2 ≦ 45 °, it is possible to reduce the size of the arm-mounted radio device and to reliably suppress deterioration in sensitivity of the antenna unit.

  Further, when the antenna unit is swingably attached to the side of the communication device main body or the mounting body within the range of the inclination angles θ1, θ2, or when the antenna unit is configured to be extendable / contractible, the arm-mounted radio device Since the projecting length and sensitivity of the antenna can be changed according to the usage situation, the arm-mounted radio can be handled more easily.

Further, in the case where the mounting body is composed of first and second casings that are rotatably provided on both sides of the communication device main body, a speaker is provided in the first casing, and the first casing By providing a microphone in a different communication device main body or in the second housing, a good call state can be ensured.
Further, in this case, since the communication device main body can be fixed to the arm with the arm sandwiched between the first and second housings, the arm-mounted radio can be easily attached to and detached from the arm.

1 to 3 are views showing an embodiment according to the present invention. As shown in FIGS. 1 and 2, this arm-mounted telephone (arm-mounted radio) 1 includes a communication device main body 3 with a built-in wireless circuit, and a mounting body 5 for mounting the communication device main body 3 on the arm W. And.
The communication device main body 3 is formed in a substantially rectangular plate shape, and is formed to be curved in a concave shape when viewed from the side so that the back surface 3a of the communication device main body 3 comes into contact with the arm W when being mounted. . And the display part 11 which displays various information, such as time and a telephone number, is provided in the surface 3b of the communication apparatus main body 3 located in the other side of the back surface 3a. Further, a substantially rod-shaped antenna portion 13 is fixedly provided on a side surface 3c of the communication device main body 3 adjacent to the back surface 3a and the front surface 3b. The antenna unit 13 includes a helical antenna or a whip antenna that protrudes from a midway part of the side surface 3c of the communication device main body 3.

The antenna portion 13 extends in a direction inclined at an acute angle with respect to the tangent L1 of the back surface 3a adjacent to the mounting position of the antenna portion 13 when viewed from the side, and is constant with respect to the back surface 3a of the communication device body 3. It is inclined at an inclination angle θ1. The antenna unit 13 also extends in a direction inclined at an acute angle with respect to the side surface 3c so as to be directed to the distal end portion 7a side of the first arm holder 7 which will be described later, and with respect to the side surface 3c of the communication device main body 3. It is inclined at a constant inclination angle θ2.
The mounting body 5 includes a first arm holder (first housing) 7 and a second arm holder (second housing) 9. The first arm holder 7 and the second arm holder 9 are formed so that the back surfaces 7b and 9b are curved when viewed from the side so that the contact area with the surface of the arm W is increased.

  The first arm holder 7 is rotatably attached to one end side of the back surface 3 a and the side surface 3 c of the communication device main body 3 by a hinge 15. In addition, a speaker 17 for a call that is exposed on the side of the back surface 7 b that contacts the arm W is provided at the distal end portion 7 a of the first arm holder 7. The second arm holder 9 is rotatably attached to the other end side of the back surface 3 a and the side surface 3 c of the communication device main body 3 by a hinge 19. At the distal end portion 9 a of the second arm holder 9, there is provided a telephone microphone 21 that is exposed on the back surface 9 b side in contact with the arm W. Further, on the surface 9c of the second arm holder 9, there is provided an operation unit 23 composed of a plurality of function keys such as a call key, an end key, and a direction key.

Since the first and second arm holders 7 and 9 are rotatably attached to the communication device main body 3, the arm W can be sandwiched when the arm-mounted radio device 1 is attached to the arm W. It is configured as follows.
Various electronic parts (not shown) for operating the arm-mounted telephone 1 are provided inside the communication device main body 3 and the first and second arm holders 7 and 9. Are appropriately connected to the display unit 11, the operation unit 23, the speaker 17, the microphone 21, and the antenna unit 13.

  When the arm-mounted radio device 1 configured as described above is mounted on the arm W, as shown in FIG. 3, the direction in which the distal end portions 7 a and 9 a of the first and second arm holders 7 and 9 are brought closer to each other Then, the first and second arm holders 7 and 9 are rotated with respect to the communication device main body 3, respectively. In this state, since the first and second arm holders 7 and 9 sandwich the arm W, the communication device main body 3 is fixed to the arm W, and the communication device main body 3 and the first and second arm holders 7 are fixed. , 9 are in contact with the front surface of the arm W.

  Further, when making a call from the arm-mounted telephone 1 from this state, as shown in FIG. 2, the first and second arm holders 7 and 9 have their first end portions 7a and 9a separated from each other in the first direction. Then, the second arm holder 9 is rotated with respect to the communication device main body 3 to remove the arm-mounted telephone 1 from the arm W. Then, the second arm holder 9 and the communication device main body 3 are grasped by hand so that the microphone 21 is arranged in the vicinity of the user's mouth and the speaker 17 is arranged in the vicinity of the user's ear. Here, since the antenna part 13 protrudes in the direction away from the hand to hold, the front-end | tip part 13a is distribute | arranged to the position away from the said hand.

  In addition, it is preferable that the inclination angle θ1 in the protruding direction of the antenna unit 13 with respect to the back surface 3a of the communication device body 3 is 0 ° <θ1 ≦ 45 °. That is, when the inclination angle θ1 is 0 °, the distance between the tip 13a of the antenna unit 13 and the arm W becomes short in a state where the arm-mounted telephone 1 is mounted on the arm W, and the sensitivity of the antenna unit 13 is increased. This is because of deterioration. Further, when the inclination angle θ1 is larger than 45 °, the protruding length of the antenna portion 13 protruding from the surface 3b of the communication device main body 3 becomes large when the arm-mounted telephone 1 is mounted on the arm W. This is because a problem of catching the antenna unit 13 occurs and handling of the arm-mounted telephone 1 becomes troublesome.

  Moreover, it is preferable that the protrusion length of the front-end | tip part 13a of the antenna part 13 which protrudes from the surface 3b of the communication apparatus main body 3 shall be 0 mm or more and 10 mm or less. That is, when the protruding length is longer than 10 mm, handling of the arm-mounted radio device 1 becomes troublesome when the arm-mounted radio device 1 is mounted on the arm W. Note that the protruding length of 0 mm indicates that the tip end portion 13a of the antenna portion 13 does not protrude from the surface 3b of the communication device main body 3 or the first and second arm holders 7 and 9, and the tip end of the antenna portion 13 is shown. The state in which the part 13a is located below the surface 3b is also included.

  Moreover, it is preferable that the inclination angle θ2 in the protruding direction of the antenna unit 13 with respect to the side surface 3c of the communication device main body 3 is 0 ° <θ2 ≦ 45 °. That is, when the inclination angle θ2 is 0 °, the electromagnetic wave generated from various electronic components acts on the distal end portion 13a of the antenna unit 13 by the antenna unit 13 approaching the communication device main body 3, and the antenna unit 13 This is because the sensitivity deteriorates. Further, when the inclination angle θ2 is larger than 45 °, the projecting length of the antenna unit 13 from the side surface 3c of the communication device body 3 becomes large, and it is difficult to reduce the size of the arm-mounted phone 1. .

As described above, according to the arm-mounted phone 1, the tip 13a of the antenna unit 13 is arranged at a position away from the arm W when the arm-mounted phone 1 is worn on the arm W. Sensitivity deterioration of the portion 13 can be suppressed. And since this antenna part 13 protrudes by the inclination angle (theta) 1 in the direction inclined with respect to the back surface 3a of the communication apparatus main body 3, the protrusion length of the antenna part 13 protruded from the surface 3b of the communication apparatus main body 3 is made small. Can do. Therefore, in a state where the arm-mounted phone 1 is worn on the arm, a problem of catching the antenna unit 13 can be prevented, and the arm-mounted phone 1 can be easily handled.
In addition, since the antenna unit 13 includes a whip antenna or a helical antenna, the antenna unit 13 is less expensive than a patch antenna provided inside the communication device main body 3 or the mounting body 5, and an increase in manufacturing cost of the arm-mounted phone 1 can be prevented. it can.

  Furthermore, since the antenna unit 13 protrudes at an inclination angle θ2 in a direction away from the side surface 3c of the communication device main body 3, the distal end portion 13a of the antenna unit 13 is disposed at a position away from the communication device main body 3. . For this reason, it is possible to suppress deterioration in sensitivity of the antenna unit 13 due to electromagnetic waves from various electronic components provided inside the communication device main body 3. Moreover, since the antenna part 13 protrudes in the direction which inclines with respect to the side surface 3c of the communication apparatus main body 3, the protrusion length of the antenna part 13 which protrudes from the side surface 3c of the communication apparatus main body 3 can be made small, and an arm The wearable telephone 1 can be downsized.

  Further, since the speaker 17 and the microphone 21 are respectively provided at the tip portions 7a and 9a of the first and second arm holders 7 and 9, respectively, they are arranged sufficiently apart from each other. Therefore, when making a call, the microphone 17 and the speaker 21 can be arranged close to the user's mouth and ear, respectively. Therefore, a good call state can be ensured.

Furthermore, the communication device main body 3 can be fixed to the arm W by sandwiching the arm W between the first and second arm holders 7 and 9. That is, since the arm-mounted radio device 1 can be attached to the arm W without engaging the first and second arm holders 7 and 9 with each other, the arm-mounted radio device 1 can be easily attached to the arm W. It can be attached and detached.
Further, when talking on the arm-mounted telephone 1, the tip portion 13a of the antenna unit 13 is positioned away from the hand holding the communication device main body 3 and the second arm holder 9, so that even during a call, It can suppress that the sensitivity of the antenna part 13 deteriorates, and can ensure a favorable telephone call state.

In the above embodiment, the speaker 17 and the microphone 21 are provided at the tip portions 7a and 9a of the first and second arm holders 7 and 9, respectively. However, the present invention is not limited to this, and at least the microphone is used. 21 may be provided in the communication device main body 3 or the second arm holder 9 different from the first arm holder 7 provided with the speaker 17. Even in this case, the speaker 17 and the microphone 21 can be arranged apart from each other.
In addition, the antenna unit 13 is provided so as to protrude in a certain direction from the side surface 3c of the communication device main body 3. However, the present invention is not limited to this. For example, the antenna unit 13 is swingably attached to the side surface 3c of the communication device main body 3. It does n’t matter if you do. However, in this configuration, it is preferable to perform the swingable range of the antenna unit 13 within the range of the inclination angles θ1 and θ2. In the case of this configuration, the protruding length and sensitivity of the antenna unit 13 can be adjusted in accordance with the usage situation of the arm-mounted telephone 1, so that the arm-mounted telephone 1 can be handled more easily.

That is, in the state where the arm-mounted telephone 1 is worn on the arm W, when the user decreases the protruding length of the antenna unit 13 protruding from the surface of the communication device main body 3, the inclination angle θ1 decreases. The antenna unit 13 may be swung. In addition, when the user reduces the protruding length of the antenna unit 13 protruding from the side surface 3c of the communication device main body 3, the antenna unit 13 may be swung in a direction in which the inclination angle θ2 decreases. Furthermore, in order to improve the sensitivity of the antenna unit 13, the antenna unit 13 may be swung in a direction in which the inclination angles θ1 and θ2 are increased.
For example, in addition to the configuration of the above-described embodiment, the antenna unit 13 may be configured to be extendable and contractable in the extending direction. In the case of this configuration, the protruding length and sensitivity of the antenna unit 13 can be adjusted according to the usage state of the arm-mounted radio device 1 by extending and contracting the antenna unit 13. Can be handled more easily.

  That is, in order to improve the sensitivity of the antenna unit 13, the antenna unit 13 is extended and the tip 13a of the antenna unit 13 is connected to the arm W, the communication device body 3, and the back surfaces 3a of the first and second arm holders 7 and 9. , 7b, 9b and side surface 3c. Moreover, what is necessary is just to shrink | contract the antenna part 13, when reducing the protrusion length of the antenna part 13 which protrudes from the surface 3b of the communication apparatus main body 3 and the 1st, 2nd arm holders 7 and 9. FIG.

  Further, although the antenna portion 13 extends in a direction inclined at an acute angle with respect to the tangent L1 of the back surface 3a adjacent to the mounting position, the present invention is not limited to this, and at least the distal end from the base end side of the antenna portion 13 As it goes to the side, it should just extend in the direction away from the back surface 3a. That is, for example, as shown in FIG. 4, it extends in the arrangement direction of the communication device main body 3 and the first and second arm holders 7 and 9 along the tangent L1 of the back surface 3a adjacent to the mounting position of the antenna portion 31. The antenna unit 31 may be arranged.

  Even in this configuration, when the arm-mounted telephone 1 is mounted on the arm W, the tip 31a of the antenna unit 31 is arranged at a position separated from the arm W, so that deterioration in sensitivity of the antenna unit 13 can be suppressed. it can. Further, the protruding length of the antenna unit 13 protruding from the surface 3b of the communication device main body 3 and the first and second arm holders 7 and 9 can be reduced.

  In addition, the antenna unit 13 extends in a direction inclined at an acute angle with respect to the side surface 3c of the communication device main body 3, but at least at an acute angle with respect to the tangent line of the side surface 3c located at the mounting portion of the antenna unit 13. What is necessary is just to extend in the direction to incline. That is, for example, as shown in FIG. 5, when the side surface 3 c of the communication device body 3 bulges outward and is curved, the antenna portion 32 is curved when viewed from the surface 3 b side of the communication device body 3. It does not matter if it extends in a direction inclined at an acute angle with respect to the tangent line L2 of the side surface 3c.

  Further, although the antenna portions 13 and 32 are inclined at an acute angle with respect to the side surface 3c, the antenna portions 13 and 32 only need to extend in a direction away from the side surface 3c at least along the direction from the proximal end side to the distal end side of the antenna portion 13. That is, for example, as shown in FIG. 6, when the side surface 3 c of the communication device main body 3 bulges outward and is curved, the antenna portion 33 is extended and arranged in the direction of the tangent L2 of the curved side surface 3 c. It is good. Also in this configuration, the tip 33a of the antenna unit 33 can be arranged at a position separated from the communication device main body 3, so that sensitivity deterioration of the antenna unit 33 can be reliably suppressed. Moreover, since the projecting length of the antenna portion 33 projecting from the side surface 3c can be reduced, the arm-mounted radio can be reduced in size.

  In addition, although the antenna unit 13 extends from the communication device main body 3 at two inclination angles θ1 and θ2, when considering only that the distal end portion 13a of the antenna unit 13 is separated from the surface of the arm W, The range of the inclination angle θ2 with respect to the side surface 3c may not be limited. Further, when considering only that the distal end portion 13a of the antenna portion 13 is separated from the communication device body 3 and the first and second arm holders 7 and 9, the range of the inclination angle θ1 with respect to the back surface 3a is not limited. Also good.

  In addition, the antenna units 13 and 31 to 33 are provided on the side surface 3c of the communication device main body 3. However, the present invention is not limited to this. For example, the antenna units 13 and 31 to 33 are provided on the side surfaces of the first arm holder 7 and the second arm holder 9. It does not matter. Here, when the antenna portions 13 and 31 to 33 are provided on the side surface of the first arm holder 7, the antenna portions 13 and 31 to 33 are the tip portions of the first arm holder 7 as in the above-described embodiment. It is preferable to incline toward the 7a side.

  Further, when the antenna portions 13, 31 to 33 are provided on the side surface of the second arm holder 9, the antenna portions 13, 31 to 33 are preferably inclined toward the tip end portion 9 a side of the second arm holder 9. . That is, when making a call, the arm-mounted telephone 1 is detached from the arm W and the second arm holder 9 and the communication device main body 3 are gripped by hand. Here, the antenna unit 13 is separated from the gripping hand. Since it protrudes in the direction, the tip end portion 13a is disposed at a position away from the hand. Therefore, it is possible to prevent a deterioration in sensitivity of the antenna unit 13 and ensure a good call state.

Further, although the wireless circuit is built in the communication device main body 3, the wireless circuit is not limited to this, and may be built in the first and second arm holders 7 and 9.
In addition, although the mounting body 5 is configured by the first and second arm holders 7 and 9, the mounting body 5 is not limited to this, and the mounting body communicates so that at least the communication device body 3 can be fixed to the arm W. What is necessary is just to be attached with respect to the main body 3 so that rotation is possible. Therefore, the mounting body may be constituted by, for example, one arm holder or may be constituted by connecting three or more arm holders.

Furthermore, although the arm-mounted phone 1 has been described, the present invention is not limited to this, and any arm-mounted radio device including at least the antenna unit 13 for transmitting and receiving various information may be used.
As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

1 is a schematic plan view showing an arm-mounted telephone according to an embodiment of the present invention. It is a schematic side view which shows the arm mounting | wearing type | mold telephone of FIG. It is a schematic side view which shows the state which mounted | wore the arm mounting | wearing type telephone of FIG. It is a schematic side view which shows the arm mounting type telephone which concerns on other embodiment of this invention. It is a schematic plan view which shows the arm mounting type telephone which concerns on other embodiment of this invention. It is a schematic plan view which shows the arm mounting type telephone which concerns on other embodiment of this invention.

Explanation of symbols

1 Arm-mounted phone (arm-mounted radio)
3 Communication device body 3a Back surface 3c Side surface 5 Mounted body 7 First arm holder (first housing)
9 Second arm holder (second housing)
13, 31 to 33 Antenna portions 13a and 31a to 33a Tip portion 17 Speaker 19 Microphones L1 and L2 Tangent θ1 Inclination angle θ2 Inclination angle

Claims (18)

A communication device that transmits and receives signals;
A mounting body for mounting the communication device body on an arm;
An antenna unit provided to project from the side surface of the communication device main body or the mounting body,
The arm portion extends in a direction away from the back surface of the communication device main body or the mounting body in contact with the arm as the antenna portion goes from the proximal end side to the distal end side of the antenna portion. Type radio. The arm-mounted radio device according to claim 1, wherein an extending direction of the antenna unit is a direction that forms an acute angle with respect to a tangent to the back surface adjacent to the mounting position of the antenna unit. 3. The arm-mounted radio device according to claim 2, wherein an inclination angle of the extending direction of the antenna unit with respect to the rear surface is θ1 and 0 ° <θ1 ≦ 45 °. The arm-mounted radio device according to claim 3, wherein the antenna unit is swingably attached to the side surface in the range of the tilt angle θ1. The said antenna part is extended in the direction spaced apart from the side surface of the said communication apparatus main body or the said mounting body as it goes to the front end side from the base end side of the said antenna part. The arm-mounted radio device according to any one of the above. The arm-mounted radio device according to claim 5, wherein the extending direction of the antenna unit is a direction that forms an acute angle with respect to a tangent to the side surface that is located at a mounting portion of the antenna unit. The wrist-worn radio according to claim 6, wherein an inclination angle of the antenna extending direction with respect to the side surface is θ2 and 0 ° <θ2 ≦ 45 °. The arm-mounted radio device according to claim 7, wherein the antenna unit is attached so as to be swingable within a range of an inclination angle θ2. 2. The antenna unit according to claim 1, wherein the antenna unit is arranged so as to extend in an arrangement direction of the communication device main body and the mounting body along a tangent line of the back surface adjacent to the mounting position of the antenna unit. The wrist-mounted radio device described. The protruding length of the tip of the antenna unit protruding from the surface of the communication device main body or the mounting body is 0 mm or more and 10 mm or less. Arm-mounted radio as described in 1. A communication device that transmits and receives signals;
A mounting body for mounting the communication device body on an arm;
An antenna unit provided to project from the side surface of the communication device main body or the mounting body,
The arm-mounted radio device, wherein the antenna unit extends in a direction away from a side surface of the communication device main body or the mounting body as it goes from the base end side to the front end side of the antenna unit. The arm-mounted radio device according to claim 11, wherein an extending direction of the antenna unit is a direction that forms an acute angle with respect to a tangent line of the side surface located at a mounting portion of the antenna unit. 13. The wrist-worn radio according to claim 12, wherein 0 [deg.] <[Theta] 2≤45 [deg.], Where [theta] 2 is an inclination angle of the antenna extending direction with respect to the side surface. The arm-mounted radio device according to claim 13, wherein the antenna unit is attached so as to be swingable within a range of an inclination angle θ2. The side surface located at the mounting portion of the antenna portion is curved so as to bulge outward,
The arm-mounted radio device according to claim 11, wherein an extending direction of the antenna unit coincides with a tangential direction of the side surface of the attachment portion. The arm-mounted radio device according to any one of claims 1 to 15, wherein the antenna unit is extendable and contractible in an extending direction thereof. A first housing rotatably attached to the communication device main body on one end side of the side surface and the back surface of the communication device main body; and the other end side of the side surface and the back surface of the communication device main body. And a second housing rotatably attached to the communication device main body,
The speaker for a call is provided in the first casing, and a microphone for a call is provided in at least one of the communication device main body or the second casing. The arm-mounted radio device according to claim 16. A first housing rotatably attached to the communication device main body on one end side of the side surface and the back surface of the communication device main body; and the other end side of the side surface and the back surface of the communication device main body. And a second housing rotatably attached to the communication device main body,
The arm-mounted radio device according to any one of claims 1 to 16, wherein the arm is sandwiched between the first casing and the second casing when attached to the arm.

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