JPH0320880Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a sound-collecting speaking tube that is used by being held in the hand so as to fit into the ear canal.

(Prior Art) Conventionally, an integrated sound-collecting voice tube having a curved trumpet shape and having a perforated listening element placed at the small diameter end so as to close the user's ear hole is generally known.

(Problems to be solved by the invention) Since the conventional sound-collecting speaking tube has a one-piece structure with a curved truss shape, it cannot be used as a megaphone, and it is bulky when packed in a box, making it inconvenient for transportation and storage. There was a problem.

(Means and effects for solving the problems) In order to solve the above-mentioned conventional problems, this invention has a sound transmission tube having a curved truss shape, and a pipe that can be attached and detached to the large-diameter end cylinder fitting part of this sound transmission tube. and a lapper-shaped tube that can be fitted and held so that the tube can be removed from the sound conducting tube and used as a megaphone, and the tube is housed inside the tube. It is characterized in that it is constructed in a size that is easy to obtain, so that it does not take up much space when packaged in a box.

(Embodiment) An embodiment of this invention will be described below with reference to the drawings. In the figure, 1 is a sound-conducting sound conductor in the shape of a curved lapper, which has a perforated sounding element 2 at its small diameter end, which is applied so as to close the user's ear canal. It is a tube with an annular groove 3a on the outer periphery of the large diameter end that is curved so as to open in front of the user's ear.
A cylindrical fitting part 3 is provided. Note that a string attachment part 4 is integrally provided near the tube fitting part 3.

Reference numeral 5 denotes a lapper-shaped tube that can be used with a megaphone and is detachably fitted and held in the tube fitting portion 3 of the sound transmission tube 1;
An annular protrusion 5a that elastically fits into the outer circumferential annular groove 3a of the tube fitting portion 3 is integrally provided on the inner surface of the small diameter end of the stiff trestle-shaped tube 5. This Ratsupa-shaped tube 5 can be removed from the sound conducting tube 1 and used as a megaphone as shown in FIG. It is sized to be able to be stored.

The sound collecting tube having the above structure is used by holding the perforated sounding element 2 in the ear hole by hand as shown in Fig. 3. 5 from the sound transmission tube 11, the trumpet-shaped tube 5 can be used as a megaphone as shown in FIG.

[Effect of idea]

The sound collecting tube of this invention is composed of a sound transmitting tube 1 having a curved truss shape, and a truss shape tube 5 which is removably fitted and held in the large diameter end fitting part 3 of this sound transmission tube 1. The lattice-shaped tube 5 can be removed from the sound tube 1 and used as a megaphone. Moreover, since the tube 5 is configured to have a size that allows the sound conduction tube 1 to be accommodated therein, the tube 1 can be placed inside the tube 5 as shown by the imaginary line in FIG. It can be stored and boxed and packaged in a small size, and it also has the effect of not being bulky for transportation and storage.

[Brief explanation of drawings]

Fig. 1 is a central cross-sectional view showing the sound collecting tube of the present invention, Fig. 2 is a right side view of Fig. 1, and Fig. 3 shows the sound collecting pipe of the present invention in use with it placed against the ear. FIG. 4 is a usage diagram showing a state in which the trumpet-shaped tube is used as a megaphone. 1...Sound conducting tube, 2...Perforated sounding element, 3...Cylinder fitting part, 5...Ratsupa-shaped cylinder.

Claims (1)

[Scope of utility model registration request] A curved earphone that has a hole-opening sounding element placed on the small diameter end so as to close the ear canal of the user, and a cylindrical fitting part on the large diameter end that is curved so as to open toward the front side of the user's ear. A sound conducting tube with a shape and a removable clasp that is removably fitted and held in the cylinder fitting part of the sound conducting tube to enable use of a megaphone, and a size that allows the sound conducting tube to be stored inside when packaged in a box. A sound collecting transmission tube composed of a shaped cylinder.