JP5024715B2 - Ear cover type sound collector - Google Patents

Description

      The present invention relates to a sound collector characterized by being easy to handle and inexpensive without using a battery amplifier in order to eliminate mild hearing loss of the elderly.

Conventional sound collectors are either a “chip type” in which the speaker unit and the amplifier unit are integrated and directly inserted into the ear hole, or an “earphone type” in which the amplifier unit is separated and the speaker unit is provided with a cord, or paper, etc. An “origami type” is known in which a thin plate is folded and attached directly to the ear.
However, the “chip type” is small and difficult to handle, and the “earphone type” has disadvantages such as the cord and the amplifier section being in the way, and the “origami type” is unstable in holding on the ear. It was.

Registered Utility Model No. 3134041 JP 2000-358300 A

The present invention has been made in view of the above circumstances. Conventionally, when the elderly cannot hear, the sound pressure is increased by covering the back of the earlobe with a hand.
This plan is an application of that principle. Specifically, the sound collection cover that covers the ear is attached to the band, and it is fixed simply by placing it on the ear, facilitating attachment / detachment to the ear, microphone, speaker, amplifier, battery, etc. It is intended to provide an “ear cover type sound collector” that is practical and inexpensive by increasing the sound collection sound pressure to the ear with the ear cover without using the sound.

(1) The ear cover is easily attached to and detached from the ear.
(2) Reduce the product cost by eliminating the need for speakers, microphones, amplifiers, etc.
(3) It is possible to cope with fluctuations in the size of the head, and the ear cover is closely attached to the periphery of the ear.
(4) When not needed, remove the ear cover from the ear to facilitate storage.

(1) The ear cover is fixed to the band to facilitate attachment / detachment.
(2) Eliminate speakers, microphones, amplifiers, etc., and reduce product costs.
(3) The ear cover is brought into close contact with the periphery of the ear by a connecting mechanism of the band and the ear cover.
(4) When not in use, remove the ear cover from the ear so that the band can be hung around the neck.

By the above solution, the following points are greatly improved as compared with the conventional product.
(1) The ear cover is fixed to the holding band, so that it can be easily attached to and detached from the ear.
(2) Eliminate speakers, microphones, amplifiers, etc., greatly reducing product costs.
(3) The ear cover is brought into close contact with the periphery of the ear by a connecting mechanism of the band and the ear cover.
(4) When not in use, remove the ear cover from the ear and hang the band around the neck for easy handling.

Overall perspective view of the first embodiment of the present plan Exploded view of the first embodiment of the present plan Cross sectional view of the ear cover and the band of the first embodiment of the present plan Exploded view of the second embodiment of the present plan Cross sectional view of the ear cover and the band of the second embodiment of the present invention Exploded view of the third embodiment of the plan Cross sectional view of the ear cover and band of the third embodiment of the present plan Use state diagram of this plan Non-use state diagram of this plan

The structure and use method of the present plan will be described below with reference to FIGS.
FIGS. 1 to 3 show a first embodiment of the present invention. The right side of the ear cover 1a and the left side of the ear cover 1b in FIGS. 1 and 2 are symmetrical, and have a substantially box shape with the front side and the inside open. The front side serves as a sound collection window from the front, and the inner side covers the periphery of the ear. The ear cover is made of a hard resin or the like, and needs to be thick to improve sound vibration reflection. The substantially box-shaped ear cover is shaped to cover the ear, and is not limited to a square, but may be U-shaped. The two bands have an inverted U-shape and are provided with 2a elongated notch groove right and 2b elongated notch groove left at the ends, respectively, 1c corner boss right and 1d corner boss left on the outside of the ear cover. Is engaged with the elongated notch groove, and a 1e screw hole is penetrated through the center thereof. They are combined as shown in FIG. 3 and fastened with three hexagon screws and four nuts. In addition, the width of the square boss is slightly smaller than the width of the elongated notch groove, and when the nut is loosened, the ear cover is not rotatable in the elongated notch groove and can move only in the vertical direction. Become. The material of the band is a metal plate bent into a U-shape, but the material should have a strength below a certain level and bend beyond a certain level in order to adjust the head size of the user and the pressing force to the ear of the ear cover. It is preferable to select a material that can deform the initial shape when stress is applied. Molding with a resin material may be used in place of the metal plate, but heating is required to cause deformation.
Furthermore, when considering the fine points, it is preferable to consider the touch by adhering a foamed urethane foam or the like around the inner surface side end surface of the ear cover.

Next, a second embodiment of the present plan will be described with reference to FIGS.
FIG. 4 is an exploded view of the second embodiment of the present plan. Unlike the first plan, the ear cover is substantially U-shaped, and the rear part of the ear is semicircular and the external sound wave is reflected by the semicircular surface. Has the effect of collecting in the ear canal. The connection structure between the ear cover and the band has a 1c square boss right and a 1d square boss left at the approximate center of the outer surface of the ear cover, and is inserted into the 2 band 2a elongated notch groove right and 2b elongated notch groove left, The height of the angular boss is set slightly lower than the outer surface of the two bands.
On both sides in the horizontal direction of the square bosses, there are provided six semicircular bosses in contact with the outer rules of the elongated notch groove inside the two bands, and three hexagonal screws are provided from the inner side of the ear cover as shown in FIG. Insert into 1e screw hole, and fix with 4 nuts through 7 washers and 5 springs from the outside of the band.
To explain the function, the corner boss of the ear cover engages with the elongated groove of the band, and the apex of the six semicircular boss is pressed against the inside of the band by the tension of 5 springs. Therefore, the ear cover cannot rotate with respect to the band, and can move in the vertical direction against the pressure contact force, and the tilting up and down becomes unstable. When the ear cover is attached to the ear, the inner surface side of the ear cover is Stabilizes in contact with the periphery of the ear. The tension of the 5 springs can be varied by the rotation of the 4 nuts.

Next, a third embodiment of the present plan will be described with reference to FIGS.
FIG. 6 is an exploded explanatory view of the third embodiment of the present invention, and the shape of the ear cover is the same as that of the second embodiment. The connecting structure of the ear cover and the band is provided with a pin hole through which two 1f pin guides are juxtaposed in a horizontal direction with a gap at the approximate center of the outer side surface of the ear cover and through which 8 pins pass. Nine shafts with a width slightly narrower than the narrow notch groove width of the band are inserted into the gap, and 8 pins penetrating the pin hole provided in the shaft and the pin hole of the 1f pin guide are inserted. The outside of the 9 shaft is provided with a thin pin and a male screw, and is fixed with 4 nuts through 5 springs on the outside of the band as shown in FIG.
Explaining the function, the semicircular boss apex at the tip of the 1f pin guide of the ear cover is pressed against the inside of the band by the tension of 5 springs. Therefore, the ear cover cannot rotate with respect to the band, and can move in the vertical direction against the pressure contact force, and the tilting up and down becomes unstable. When the ear cover is attached to the ear, the inner surface side of the ear cover is Stabilizes in contact with the periphery of the ear. The tension of the 5 springs can be varied by the rotation of the 4 nuts.

Next, a usage method will be described with reference to FIGS.
FIG. 8 shows the state of use of the present plan, and the ear cover is attached with the side opening portion on the front side of FIG. When the width of the head and the width of the band are inappropriate, in the first embodiment, the band may be deformed and adjusted. When the setting positions of the band and the ear cover height are inappropriate, the nut may be loosened and corrected to an appropriate position, and the nut may be tightened.
In the second and third embodiments, the width of the head and the width of the band correspond to elastic deformation of the band, and the setting of the height position of the band and the ear cover can be arbitrarily set against the tension of the spring. Move to the position. The parallelism between the ear cover and the band is such that the six-circle boss protruding from the outer side of the ear cover or the semi-circular portion of the tip of the 1f pin guide is in contact with the inner side of the band. The tilt can be varied, and the tilt of the ear cover is automatically fitted to the tilt around the ear.

In the test by the inventor's prototype, wearing this product has the same effect as rolling your hand and putting it behind your ears, and speaking voice that can be heard by people with normal hearing Also became fully audible.
Next, Fig. 9 shows the state of non-use of the present plan. When the ear cover sound collector becomes unnecessary, it is prevented from being stepped on it or taken out again when necessary. It is very convenient to keep the band on your neck. I think this should also be evaluated as a great effect of integrating the band and the ear cover.

By the above solution, the following points are greatly improved as compared with the conventional product.
(1) The ear cover is fixed to the holding band, so that it can be easily attached to and detached from the ear.
(2) Eliminate speakers, microphones, amplifiers, etc., greatly reducing product costs.
(3) The ear cover is brought into close contact with the periphery of the ear by the connecting structure of the band and the ear cover.
(4) When not in use, remove the ear cover from the ear and hang the band around the neck for easy handling.

1a ear cover right, 1b ear cover left, 1c square boss right, 1d square boss left, 1e screw hole, 1f pin guide, 2 bands, 2a narrow notch groove right, 2b slender notch groove left, 3 hexagon screws, 4 Nut, Y ear cover moving direction, 5 spring, 6 semi-circular boss, 7 washer, 8 pin, 9 shaft, 9a shaft screw

Claims (3)

The left and right ear covers are symmetrical, are generally box-shaped with the inside and front open, and the vertex of the semicircular boss provided on the inner side surface of the U-shaped band and the outer side surface of the ear cover is the rotation fulcrum. Connection means that can rotate in the vertical direction is provided, the ear cover is movable only in the vertical direction with respect to the band, and the inner end surface of the ear cover is substantially in close contact with the outer peripheral surface of the ear. A featured ear cover type sound collector. 2. The ear cover type sound collector according to claim 1, wherein the connecting means includes a corner boss on the outer side of the ear cover and the semicircular boss on both outer sides of the corner boss, and the semicircular boss is the band. The square boss engages with an elongated notch groove provided at the end of the band, and the screw of the band passes from the inside of the ear cover to the screw hole that passes through the center of the square boss. An ear cover type sound collector that is assembled from the outside with a nut through a spring. 2. The ear cover type sound collector according to claim 1, wherein the connecting means is provided with two pin guides of the semicircular boss at intervals on the outside of the ear cover, and a shaft is provided in a gap between the pin guides. Insert a semicircular square portion provided on the head, insert a pin into a pin hole provided on the side surface of the semicircular square portion of the pin guide and the shaft, and connect the pin guide to a semicircular boss. Is in contact with the inner side of the band, the semicircular square part of the shaft is engaged with an elongated notch groove provided at the end of the band, and is attached to the threaded part of the shaft with a nut from the outside of the band through a spring. Ear cover type sound collector characterized by that.