JPS6236354Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an arm-worn radio receiver.

Due to the rapid progress and development of electronic technology in recent years, the miniaturization of various electronic devices has been realized, and in particular, there has been a strong desire for portable radio receivers, and the miniaturization has been remarkable. There is something. However, a radio receiver that is as small and thin as a wristwatch and convenient to carry has not yet been realized.The main reason for this is that the speaker and battery of the radio receiver are small and thin. One of the problems is that it is difficult to store it inside the radio receiver body due to space constraints.

The present invention has been devised to correct the above-mentioned deficiencies.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, a wrist-worn radio receiver (hereinafter simply referred to as "receiver") 1 has a receiver main body that includes a printed circuit board 11, a bar antenna 14, etc. Body 2 which is the case of 1
, a small piece 20 which is a second case in which a speaker 40 is housed, and a small piece 24 which is a third case in which a mercury battery 50 is housed. The main body 2 is small and thin like a wristwatch, and a digital frequency display section 5 is provided on the surface of the main body 2.
The received frequency can be displayed digitally. In addition, the frequency display section 5 is arranged so that the frequency display can be read with the wrapped body 3 facing downward or toward the front. An operation button 6 is provided on the side of the frequency display section 5 of the main body 2 (on the side of the wrapped body 3 in FIG. 1), which allows you to turn the power on and off, adjust the volume,
It is configured so that tuning can be performed.

The main body 2 is made of synthetic resin, and inside thereof, as shown in FIG. 2, a liquid crystal substrate 7 is provided on the back side of the frequency display section 5. Further, the back side of the main body 2 has a battery cover 8 that can be opened and closed, and a lithium battery 9 is housed inside the battery cover 8. A metal shield case 10 is placed in the space between the lithium battery 9 and the liquid crystal board 7, and a printed circuit board 11 is provided inside the metal shield case 10. Electronic components 12 are attached to the printed circuit board 11 to form a radio receiving circuit. Further, a clock IC 13 is attached to the printed circuit board 11, so that the time can be digitally displayed on the frequency display section 5 using the operation button 6. Note that the lithium battery 9 is used as a power source for this watch IC 13. A bar antenna 14 is provided on the side of the shield case 10 so as to be able to receive broadcast waves transmitted into the main body 2.

The wrapped bodies 3 and 4 are composed of a plurality of plate-shaped small pieces 20 to 28 made of synthetic resin, and each small piece 2
0 to 28 are connected to each other by pins 29 so as to be flexible, as shown in FIG. Further, the small piece 20 of the wrapped body 3 and the main body 2 are connected by a hinge consisting of a connecting pin 30 and a bracket part 47,
The small piece 24 of the wrapped body 4 and the main body 2 are connected by a connecting pin 31
The main body 2 and the small pieces 20, 24 are connected in series by a hinge consisting of a bracket portion 54 and a bracket portion 54. As shown in FIG. 4, the arm wrapping body consisting of the main body 2 and the wrapping bodies 3 and 4 is bent and attached to the arm. A locking plate 32 is attached to the small piece 23 at the tip of the wrapping body 3, and a locking box 33 is inserted into the small piece 28 at the tip of the wrapping body 4 and is locked. It is provided.

A small, flat speaker 40 is housed in the small piece 20, as shown in FIG. It is exposed to the outside through a large number of acoustic holes 42 formed in a shape.
The speaker 40 can be of various types, such as a dynamic type, a magnetic type, or a piezoelectric ceramic type, but a dynamic type is used here. The front side of the acoustic hole 42 is covered with a directing plate 43 that is integrally and continuously provided on the surface of the small piece 20 at appropriate intervals, and the speaker 40
The cone portion 41 is protected. Further, the directing plate 43 is provided perpendicularly to the surface of the small piece 20 so that the sound emitted from the cone portion 40 is directed in a direction perpendicular to the surface of the small piece 20. Note that the surfaces of the other small pieces 21 to 27 are provided with a striped pattern of unevenness, such as the direction plate 43, to make the receiver 1 look good. On the back side of the small piece 20, as shown in FIGS. 2 and 3, a circular speaker lid 44 is provided which can be opened and closed in a detachable manner. This makes it possible to incorporate the speaker 40 into the small piece 20 and to maintain the speaker 40.

As shown in FIG. 2, substrate holes 45 and 46 are provided in opposing sides of the small piece 20 and the main body 2, respectively. The board holes 45 and 46 are formed slightly below the connecting pin 30, and from the front side of the receiver 1, the bracket portion 4 of the small piece 20 can be seen from the front side of the receiver 1 as shown in FIG.
It is blocked by 7 and cannot be seen. The board holes 45 and 46 are inside the small piece 20 and the main body 2, respectively.
The speaker 40 and the printed circuit board 1 communicate with the inside.
It is connected to the circuit above 1 through a flexible board 48 inserted through board holes 45 and 46. Therefore, even if the main body 2 and the small piece 20 are bent as shown in FIG. 4, the flexible substrate 48 will not be disconnected. Furthermore, the flexible substrate 48 will not be disconnected. Furthermore, the flexible substrate 48 is protected by the bracket portion 47 and will not be accidentally damaged.

As shown in FIG. 2, a mercury battery 50 for driving the receiver 1 is housed in the small piece 24. The connection between the mercury battery 50 and the printed circuit board 11 is made in the same manner as the connection between the speaker 40 and the printed circuit board 11 described above. That is, 51 and 52 are the small pieces 24
and a board hole 53 provided on one side of the main body 2, respectively, where the mercury battery 50 and the printed circuit board 11 are inserted.
This is a flexible board that connects the Note that the flexible substrate 53 is similar to the flexible substrate 4 described above.
8, it is protected by the bracket portion 54 of the small piece 24. The back side of the small piece 24 is a detachable battery cover 55 that can be opened and closed, allowing the battery 50 to be replaced. Although it is not impossible to house the battery 50 in the main body 2, it would require making the main body 2 larger, and the space factor would be worse, and the degree of consumption of the battery 50 would be higher than that of the lithium battery 9. It is undesirable because it is relatively large, must be replaced frequently, and dust can enter the main body 2, causing damage to the receiver 1 and display section 5.

Next, the operation of the receiver 1 described above will be explained.

When using this receiver 1, it is attached to the arm as shown in FIG. 4. Receiver 1
The installation operation is to place the main body 2 on the arm with the wrapping body 3 on the front side of the arm, then wrap the wrapping bodies 3 and 4 along the arm, and insert the locking plate 32 into the locking box 33. Do it by doing this. The reception operation of the receiver 1 is performed by turning on the power using the operation button 6, and by tuning into the channel and adjusting the volume using the other operation buttons 6. In addition, at this time, the receiving frequency is displayed on the frequency display section 5.
displayed digitally. Further, by operating the operation button 6, the time is digitally displayed on the frequency display section 5.

The broadcast radio waves received by the bar antenna 14 are subjected to frequency conversion, intermediate frequency amplification, detection, and low frequency amplification in a receiving circuit in the shield case 10, and are acoustically converted and listened to by the speaker 40. At this time, the small piece 20 to which the speaker 40 is attached forms a predetermined angle difference with the main body 2 as shown in FIG. The ideal direction is for the speaker 40 to face the user's face. Then, the sound from the speaker 40 is directed by the directing plate 43 in a direction perpendicular to the surface of the small piece 20 and is transmitted directly to the ear, so that the sound pressure effect of the speaker 40 is audibly improved.

Although the embodiments of the present invention have been described above, the placement position of the small piece 20 housing the speaker 40 is not limited to the illustrated position, and can be placed around the arm as long as it is in a position where the sound pressure effect of the speaker 40 is improved. It may also be placed in other locations on the body. Further, speakers may be provided on the small pieces 20 and 24 on both sides of the main body 2, respectively. In this case, it is also possible to extend the wound bodies 3 and 4 in a straight line as shown in FIG. 1, and place the receiver 1 horizontally to receive stereo broadcasts.

The present invention is an arm-wrappable radio receiver, which includes a radio receiver body, a speaker, and a battery, and a bendable arm-wrap body configured to be wrapped around the arm. A first case in which a radio receiver body is housed, a second case in which the speaker is housed, and a third case for housing the battery are separately provided, and the first and second cases are individually provided. and a third case are connected in series via a hinge, and these first
- This relates to an arm-wrappable radio receiver characterized in that a third case constitutes a part of the arm-wrap body.

Therefore, according to the present invention, the main body of the radio receiver, the speaker, and the battery are configured to be housed separately in the first, second, and third cases, so that these individual cases can be miniaturized. , can be made thinner, and since these cases are configured to be connected in series, when the arm-wrapped radio receiver according to the present invention is worn on the arm, there is no impact on the arm. It has excellent adhesion and fit, making it convenient to carry, and the receiver does not get in the way during activities.

In addition, if the radio receiver body, speaker, and battery are integrated and housed in one case to make it smaller and thinner, the radio receiver body's printed circuit board, bar antenna, lead wire, etc. can be connected to the speaker. There is a risk of contact or being in close proximity to the speaker, and as a result, when the speaker is activated, the mechanical vibration of the speaker may peel off the solder on circuit components on the printed circuit board, cut the thin lead wires of bar antennas, etc. Although there is an inconvenience that abnormal noise may be generated from the speaker, according to the present invention, such an inconvenience does not occur because the radio receiver main body and the speaker are configured to be housed in separate cases.

Furthermore, since the radio receiver body and the speaker are housed in separate cases, it is possible to prevent the radio receiver body from malfunctioning due to dust entering when replacing batteries. The degree of freedom in setting the placement position is increased,
By setting the arrangement position of the second case containing the speaker in the arm-wrapping body at an appropriate position, the radio receiver according to the present invention can be held in front of the face while being wrapped around the arm. Sometimes, the speaker can be made to naturally face the face, and in this case, the sound pressure effect of the speaker increases, and it is possible to listen efficiently even with a low output.

Furthermore, since the first to third cases connected in series constitute a part of the arm-wrapping body, the first to third cases can be attached to the upper part of the arm-wrapping body consisting of a band portion, for example. Compared to the case where the receiver is arranged in an array, the overall thickness of the receiver can be made thinner, and the material of the band portion can be saved.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a radio receiver according to an embodiment of the present invention, Fig. 2 is an enlarged longitudinal sectional view of the same main part, Fig. 3 is a bottom view of the radio receiver, and Fig. 4 shows how the receiver is used. FIG. In addition, in the symbols used in the drawings, 1... arm-worn radio receiver, 2... main body (first case), 3, 4... wrap body, 20... small piece (second
case), 24...Small piece (third case), 40
...Speaker, 50...Mercury battery.

Claims (1)

[Scope of utility model registration request] An arm-wrappable radio receiver comprising a radio receiver main body, a speaker, and a battery, and a bendable arm-wrap body configured to be wrapped around the arm, wherein the radio receiver main body is provided with a speaker and a battery. A first case housing the speaker, a second case housing the speaker, and a third case housing the battery are separately provided, and the first, second, and third An arm-wrappable radio receiver characterized in that the cases are connected in series via a hinge, and the first to third cases constitute a part of the arm-wrap body.