JPH0648993Y2 - Waterproof radio receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a waterproof radio receiver that can be floated on a bathtub or the like and used.

(B) Conventional Technology A waterproof radio receiver that can be floated on water in a bathtub or the like has been known, and as a waterproof radio receiver of this type, for example, Japanese Utility Model Laid-Open No. 63-153633. (H0
4B1 / 08).

(C) Problems to be solved by the invention However, in the waterproof radio receiver disclosed in the above publication, when the receiver main body is floated on water, the main body is inadvertently rotated due to waves. There's a problem. When the main body rotates, the orientation of the bar antenna for AM broadcast reception arranged inside the main body also changes, so stable and good broadcast reception cannot be performed. Since the reception state of the bar antenna that receives the AM broadcast changes remarkably depending on the direction, this is an extremely large obstacle in practical use. Further, the sound emitted from the speaker provided above the main body also becomes wavy due to the rotation of the main body, which makes it very difficult to hear.

(D) Means for Solving the Problems The present invention has been made in view of the above problems, and at least in a radio receiver used by floating on water,
It is an object of the present invention to propose a waterproof radio receiver having a fin around the radio receiver main body, which has fins for suppressing rotation of the radio receiver main body by giving resistance to water.

(E) Operation Since the radio receiver main body is configured as described above, the fins provided around the radio receiver main body suppress the rotation when the radio receiver main body is floated on water.

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

FIG. 1 shows a waterproof radio receiver according to the present invention, where (1) is the receiver body and (2) is the receiver body (1).
A speaker sound emitting section provided on the upper surface, and (3) is a tuning operation knob provided on the lower surface of the receiver body (1). (4) is a lid provided above the receiver body (1). Inside the lid (4), a volume control knob (5) is provided as shown in FIG.
Are arranged. Also, inside the receiver body (1), a resistor (6) to which the volume control knob (5) is connected, an AM
A reception circuit board (9) on which a bar antenna (7) for broadcasting reception, a variable capacitor (8), etc. are mounted, and a speaker unit (1
0) is stored. As can be seen from the figure, the speaker unit (10) emits sound outward from the speaker sound emitting section (2), and the tuning operation knob (3) is connected to the variable condenser (8). The tuning operation knob (3)
The tuning is performed by rotating the. (1
1) ... are fins (11) for suppressing rotation, which are provided in the submerged portion below the receiver body (1). The fin (1
1) acts as a resistance against water and prevents the receiver body (1) from rotating.

Next, FIG. 3 shows another embodiment of the present invention. still,
The same parts as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. This embodiment is a modification of the configuration of the fins (11) ... In the above-mentioned embodiments, the fins (12) ... in the embodiment are formed on a semi-circular plate, and the shaft (1
It is rotatably attached to the receiver body (1) with the 3) as a fulcrum. Furthermore, a buoyancy plate (14) made of a material having a low specific gravity (for example, styrofoam) is attached to one surface thereof. Therefore, when the receiver main body (1) is floated on water, the buoyancy force (P) is applied to the fins (12) on the buoyancy plate (14), whereby the fins (12) rotate as indicated by arrow A in the figure and project outward To do. The fins (12) prevent the receiver body (1) from rotating. On the other hand, when the receiver body (1) is lifted from water and used in a room, the fin (12) may be housed by rotating it in the direction opposite to the arrow A.

(G) Effect of the Invention As described above, according to the present invention, in a radio receiver that is floated on water and used, the rotation of the radio receiver main body is suppressed by giving resistance to water around the radio receiver main body. Since the fins are provided, when the receiver body is floated on water as in the past, it receives waves and the body rotates carelessly, and the orientation of the bar antenna for AM broadcast reception placed inside the body It is possible to solve the problem that stable and good broadcast reception cannot be achieved due to the change in the sound, and the problem that the sound emitted from the speaker is undulated and difficult to hear, which is extremely useful in practice.

[Brief description of drawings]

1 to 3 show a waterproof radio receiver according to the present invention, FIG. 1 is a perspective view showing the appearance of a waterproof radio receiver according to the present invention, and FIG. 2 is a waterproof radio receiver according to the present invention. FIG. 3 is a side sectional view of the receiver, and FIG. 3 is a perspective view showing another embodiment of the waterproof radio receiver according to the present invention. (1) …… Receiver body, (11) (12) …… Fin, (1
3) …… axis, (14) …… buoyancy plate

Claims (2)

[Scope of utility model registration request] 1. A waterproof radio at least in a radio receiver which is floated on water and has a fin around the main body of the radio receiver for suppressing rotation of the main body of the radio receiver by providing resistance against water. Receiving machine. 2. The utility model registration claim, wherein the fin is rotatably attached to the receiver body, and a buoyancy plate made of a material having a specific gravity lighter than water is attached to one surface of the fin. The waterproof radio receiver according to claim 1.