JP2018030700A - Audio horn exhibition device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an audio horn exhibition device which an audience uses at a storefront, which can store a cable and can be easily used.SOLUTION: An audio horn exhibition device 100 of the invention is an exhibition device for auditioning an audio horn, and comprises: an internal unit for winding a cable 1 of the audio horn for audition, and feeding the cable; and an exhibition outer box 10 for storing the internal unit. The internal unit comprises a rotary pipe for winding the audio cable and an energization spiral spring. A shaft core of the energization spiral spring is attached coaxially to a rotary shaft of the rotary pipe, and is supported horizontally in a box of the exhibition outer box 10.SELECTED DRAWING: Figure 1

Description

The present invention relates to an audio horn display device. The audio horn is an earphone or a headphone, and relates to a device for the purpose of auditioning the performance of such at a store of a store or the like.

In recent years, along with the development of various portable devices, it has been widely practiced to listen to playback of recording media such as music, radio and television broadcasting via audio horns connected to portable devices not only at home but also outdoors. Yes. Since the sound quality of music and the like greatly affects the performance of the audio horn, various types of high-performance and expensive audio horns have been developed and sold.
In order to purchase these high-performance audio horns, it is a recent tendency to audition personally in advance and select and use an audio horn having a desired characteristic. For this reason, the store where these devices are sold has a corner for listening to the audio horn, which is showing a crowded situation.

The audio horn is composed of a sound generating part of an earphone or headphone main body, a plug inserted into a portable device, and an audio cable connecting the two. The audio cable is two long and thin cables. When a large number of audio horns for listening are displayed in the corner, they are entangled with the earphones, etc., making it difficult to unravel and uncomfortable. There is.

Therefore, a device has been prototyped in which only the cable is wound around a cylindrical drum, and the audio cable is pulled out and the earphone is attached to the ear only when listening. These are devices that use a mainspring spring to store energy when the cable is pulled out manually, and use the urging force of the spring as power for rewinding the cable.
However, the unwinding force of the pulled-out cable is strong and the earphone tends to come out of the ear, or conversely, the unwinding force is weak and the cable cannot be wound. ing.
Therefore, the applicant has studied an easy-to-use display device and has completed the present invention.

Although prior patent documents directly related to the present application cannot be detected, Patent Document 1 describes an earphone cord winding device. However, it does not relate to audio horn display devices. Patent Document 2 describes a cord winding device. Similarly, Patent Document 3 describes a cord reel unit of a vacuum cleaner. None of them are related to exhibition equipment.

Japanese Patent Laid-Open No. 6-269073 Japanese Utility Model Publication 5-65969 JP-A-5-245078

In an audio horn display device, a device that can wind up and feed out an audio cable, that can be easily viewed and displayed, and that can be easily operated and can be easily exchanged. The issue is to provide.

In order to solve the above problems, an audio horn display device according to the gist of the present invention is an exhibition device for listening to an audio horn, and is an internal unit that winds and feeds out a cable of the audio horn for listening. And an outer casing for display that houses the internal unit, the internal unit having a rotating pipe for winding the audio cable and an urging mainspring spring, and the axis of the urging mainspring spring being a rotating pipe It is mounted coaxially with the rotation axis of the, and is supported horizontally inside the display outer box.

In the above, the plug cable, which is the other end of the audio cable, can be guided from one end of the rotating pipe to the outer surface of the display outer box through the opening opened in the rotating pipe surface.

Further, in the above, the display outer box can have a rack for suspending or placing the audio horn body, a mobile device placing plate, an audio cable lead hole and a plug cable lead hole, The display outer box may have a display device, and may have a structure that stops the unwinding force of the cable when the audio cable is unwound.

The audio horn display device of the present invention can be wound and stored when the long cable of the audio horn is not used, so that it is easy to handle and can be used comfortably by the customer without being entangled between the cables.
Since various audio horns can be easily exchanged and installed, it is easy for the exhibitor to maintain the equipment.
It is very convenient because it can be easily auditioned by plugging it into the mobile device you bring.
When the display device is provided, the performance of the audio horn can be visually confirmed.

It is an external appearance perspective view of an audio horn display apparatus. It is front perspective drawing of an audio horn display apparatus. It is a side perspective view of an audio horn display device. It is a figure which shows the rotating pipe and rotating disk of an internal unit. It is a figure which shows the pipe axis fixed part of an internal unit. It is the external view which looked at the cable winding state of a rotating pipe from the back surface.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external perspective view of an audio horn display device.
An audio horn display device (hereinafter also simply referred to as “exhibition device”) 100 includes an display outer case 10 and an internal unit. In FIG. 1, the internal unit is not visible.

The front plate 11 includes a main body horn (earphone or headphone main body sound generator) rack 111 (earphone rack) 111, a portable device placing plate 112, and a plug rack 117. In addition, a cable lead hole 113 and a cable stop knob 115 for an audio cable (also simply referred to as “cable”) 2 are provided substantially above the center of the front plate 11, and a lead hole 114 for the plug cable 5 is provided on the lower left. doing. Note that the cable on the plug 4 side of the audio cable is referred to as a plug cable 5.
In addition, a display device 116 can be provided. However, it is not an essential requirement to have all of these.
The cable stop knob 115 temporarily stops the rewinding force after the cable 1 having a necessary length is pulled out. The cable stop knob 115 sandwiches the cable 1 at the back of the front plate 11 and stops the rewinding. Yes. The display device 116 is a device that variably displays the name, performance, price, etc. of the audio horn to be exhibited. The portable device placing plate 112 is a place where a portable device brought by a listener is placed, and the plug 4 is inserted into the portable device for trial listening.

The form of the display device 100 is not limited to this external form, and it is obvious that various forms can be adopted without departing from the scope of the claims.
Further, in the following description and drawings, only the earphone 3 is described, but the headphone is the same except that the horn rack is increased in size and can be easily inferred, so that it is not described redundantly.

2 is a front perspective view of the audio horn display device, FIG. 3 is a side perspective view of the audio horn display device, FIG. 3 (A) is a left side view, and FIG. 3 (B) is a right side view. It is.
In each figure, the solid line portion is a shape that can be seen from the exterior, and the chain line portion shows a state in which the internal unit 20 and the like in the display outer case 10 are seen through. In FIG. 1, some devices (such as the display device 116) visible from the outside are omitted.

As shown in FIG. 2, the front plate 11 has a front area larger than the front surface of the accommodation space portion of the internal unit 20 formed by the left side plate 12, the right side plate 13, and the top plate 14.
As shown in FIG. 3, the left side plate 12 and the right side plate 13 are substantially right triangular plates with the tops cut off. The left side plate 12 has a side plate opening 121, and an annular ball bearing 26 is fixedly supported on the inner side of the left side plate 12 around the opening.

2 and 3, as indicated by a chain line, the internal unit 20 includes a hollow rotary pipe 21, rotary disks 22 and 23 at both ends thereof, and an urging mainspring spring attached to one end side of the rotary pipe 21. 24. One end side of the rotating pipe 21 and the mainspring spring 24 are fixed to a pipe shaft fixing part 25, and the other end side (left side in FIG. 2) of the rotating pipe 21 is connected to the left side plate 12 via the ball bearing 26. It is supported.

Although the shaft core 24j itself of the urging mainspring 24 is integrated with the pipe shaft fixing part 25 and does not rotate, the outer ring of the rotating pipe 21 and the mainspring spring 24 and the spring itself are the cable 1 wound around the rotating pipe 21. It is designed to rotate with the drawer. That is, the mainspring spring 24 is tightened together with the drawing of the cable 1 and accumulates a force for rewinding.
The rotating disks 22 and 23 are provided for the purpose of preventing the wound cable 1 from protruding from the rotating pipe 21, and are rotating disks having a larger diameter than the rotating pipe 21.

FIG. 4 is a diagram showing a rotating pipe and a rotating disk of the internal unit.
The rotating pipe 21 is a hollow cylindrical pipe as shown in the front view, and rotating disks 22 and 23 are fitted to both ends. The cable 1 is wound around the cylindrical surface of the rotating pipe 21.
The rotary pipe 21 itself is air-centered and does not have an axis, but is maintained horizontally so that the substantial rotation center axis C and the axis 24j of the mainspring spring 24 are positioned in a straight line.
The rotary pipe 21 is formed with an opening 211 for guiding the plug cable 5 into the rotary pipe.

The rotating disk 22 on the left side of the front view has a concentric fuzzy hole (empty hole) 221 at the center, and is fixed to a ball bearing 26 that is similarly formed into an annular shape. Fixedly supported.
The right rotating disk 23 has a center hole having a diameter smaller than the outer diameter of the rotating pipe 21 at the center, and a mainspring spring 24 is inserted into the hole, and is further fixed by a shaft core 24j.

5A and 5B are diagrams showing the pipe shaft fixing parts of the internal unit. FIG. 5A is a front view seen through from the front plate 11 side, and FIG. 5B is a left side view. .
The pipe shaft fixing part 25 is a material in which two rectangular plates are combined at a right angle, and a horizontal plate 251 of the plate is fixed to the bottom plate 15 of the outer casing 10 by screwing. Further, the vertical plate member 252 has a hole 252h, and the shaft core 24j of the mainspring 24 is inserted into the hole.
The substantial rotation center axis C of the mainspring spring 24 and the rotating pipe 21 is kept horizontal between the pipe shaft fixing part 25 and the left side plate 12 as shown in FIG.

FIG. 6 is an external view of the cable winding state of the rotating pipe as viewed from the back, and is a state when the back plate 16 is removed.
A mainspring spring 24 is provided on the vertical plate member 252 side of the pipe shaft fixing part 25, and the rotating pipe 21 is maintained horizontally between the annular ball bearing 26 inside the left side plate 12.
The audio horn cable 1 is normally two on the earphone 3 side (one in monaural) and one on the plug cable 5 side. Since the earphone 3 side has a length of nearly 1 meter, if the diameter of the rotary pipe 21 is 50 mm, the winding is about 5 to 6 turns. The plug cable 5 is guided to the plug cable drawing hole 114 through the opening 211 opened in the rotary pipe 21 and the central hole of the ball bearing 26. It is preferable to fix the plug cable 5 with a tape or the like in the vicinity of the plug cable lead-out hole 114 or the opening 211 of the rotary pipe 21 so that the plug cable 5 is not pulled by the rotation of the rotary pipe 21.

The mainspring 24 is fixed to the center axis of the spring at the start end of the spring. On the other hand, the end of the spring is fixed to the outer ring of the mainspring spring 24. Although the center axis of the spring does not rotate, the outer ring is fitted to one end of the rotating pipe 21 and rotates integrally with the rotating pipe 21.
Therefore, when the wound cable 1 is unwound, the spring of the mainspring spring 24 is spun and the force is accumulated, and when the audition is finished, the cable 1 is rewound.

Although depending on the unwinding force of the mainspring spring 24, the use of the mainspring spring 24 having an outer diameter smaller than the diameter of the rotary pipe 21 can weaken the unwinding force, and the earphone will come out from the ear of the listener. Can be prevented.
In order to prevent the earphone from coming off from the ear, the cable stop knob 115 can be provided as described above, and the cable rewind stop structure 118 made of a leaf spring or the like can be provided on the back surface of the front plate 11 correspondingly. Alternatively, a ratchet mechanism may be used in combination with the mainspring spring 24.

The materials used and other main parts will be described.
The front plate 11 of the outer case 10 for exhibition is a portion that is conspicuous in appearance, and it is preferable to use a colored plate material. The material may be a plate material such as acrylic, polyethylene, polypropylene, vinyl chloride, polyethylene terephthalate (PET), or a resin molded plate such as melamine.
The same applies to the left side plate 12, right side plate 13, top plate 14, and bottom plate 15.
Materials such as acrylic, polyethylene, polypropylene, vinyl chloride, and PET can be used for the rotating pipe 21 and the rotating disks 22 and 23. Since the plug cable 5 is passed through the rotary pipe 21, a transparent material is preferable. The pipe shaft fixing part 25 can be made of the same material, but need not be transparent.

As the mainspring spring 24, it is preferable to use a constant load spring in which the torque to return to the original is constant and does not change with the stroke. Those having a drawing length (stroke) of about 1 meter are preferable.
The rewinding stop structure 118 may have a simple structure in which the movement of the cable 1 is stopped by the action of the leaf spring by the operation of the cable stop knob 115.
The display device 116 is preferably a display device capable of variably changing display contents. It is not limited to a liquid crystal or LED display device having a storage function, and may be one that can be exchanged by simply inserting and removing a handwritten display label.

Next, the usage method of this exhibition apparatus is demonstrated.
<Preparation on the exhibitor side>
The plug 4 of the audio horn to be exhibited is inserted into the internal unit 20 side through the cable lead hole 113 from the front plate 11 side. The plug 4 is suspended on the plug rack 117 through the opening 211 of the rotary pipe 21, the center hole of the ball bearing 26, the side plate opening 121 of the left side plate 12, and the plug cable lead-out hole 114 of the front plate 11. Accordingly, each opening and lead-out hole are sized to allow the plug 4 to pass therethrough.
After the earphone 3 is suspended on the earphone rack 111, the rotating pipe 21 is manually rotated so that the cable 1 is sequentially wound around the rotating pipe 21 so that no extra cable 1 remains on the front plate 11 side. .

<Use by the listener>
The listener puts the portable device brought on the portable device mounting plate 112 and inserts the plug 4 into the portable device. Next, when the cable 1 is pulled out and a cable having a required length is pulled out, the earphone 3 is applied to the ear (after operating the cable stop knob 115 if necessary). Operate the mobile device and listen to it to check the performance of the audio horn. After auditioning, rewind the cable (release if there is a stop knob) 1.

A black mat acrylic plate having a thickness of 3 mm was used as a material for the display outer box 10 (front plate 11, left side plate 12, right side plate 13, top plate 14, bottom plate 15, back plate 16). The width of the front plate 11 was 170 mm and the height was 290 mm.
As the rotating pipe 21 of the internal unit 20, a transparent acrylic pipe (thickness 3 mm) having an outer diameter of 50 mm and a length of 100 mm is used, and transparent acrylic discs (thickness 3 mm) having a diameter of 80 mm are used as rotating discs 22 and 23 at both ends. Fitted. A transparent acrylic plate was also used for the pipe shaft fixing part 25.
A constant load spring with a stroke of 1 m was used as the mainspring spring 24.

These materials were assembled into the display apparatus 100 shown in FIGS. 1 to 3 and could be suitably used.

1: Audio cable, cable 3: Earphone 4: Plug 5: Plug cable 10: Display outer box 11 Front plate 12 Left side plate 13 Right side plate 14: Top plate 15: Bottom plate 16: Back plate 20: Internal unit 21: Rotation Pipes 22 and 23: Rotating disc 24: Spring spring 25: Pipe shaft fixing part 26: Ball bearing 100: Audio horn display device, display device 111: Earphone rack 112: Portable device mounting plate 113: Cable lead hole 114: Plug Cable drawing hole 115: Cable stop knob 116: Display device 117: Plug rack 118: Rewind stop structure 121: Side plate opening

Claims (5)

An exhibition apparatus for auditioning an audio horn, comprising: an internal unit that winds and feeds out a cable of the audio horn for audition; and an outer casing for display that houses the internal unit. It has a rotating pipe that winds the cable and a spring spring for urging, and the axis of the urging spring spring is mounted coaxially with the rotating shaft of the rotating pipe, and is supported horizontally inside the outer box for display. Audio horn display device, characterized by 2. The audio horn display device according to claim 1, wherein a plug cable, which is the other end of the audio cable, can be guided from one end of the rotary pipe to the outside of the display outer box through an opening opened in the rotary pipe surface. 3. The display outer box includes a rack for suspending or placing the audio horn body, a portable device placing plate, an audio cable lead hole, and a plug cable lead hole. Audio horn display device. The audio horn display device according to any one of claims 1 to 3, wherein the display outer box includes a display device. The audio horn display device according to any one of claims 1 to 4, wherein the audio horn display device has a structure that stops the unwinding force of the cable when the audio cable is unwound.

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