JPH01129699A - Automatic cable winding type earphone device - Google Patents

Abstract

PURPOSE:To attain pleasant hearing by using a flat cable as an earphone cable and using a spiral spring so as to attain automatic winding thereby avoiding jammed cable. CONSTITUTION:A flat cable 2 hardly jammed and wound easily is used as the cable. In the event of using an earphone, the cable is extended manually and a winding start switch 3 is operated for the winding and the cable 2 is wound automatically by a force stored in the spiral spring 4 at the expansion.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an earphone device, and particularly to a cable storage method and miniaturization.

[Conventional technology]

Conventional earphone devices consist of a round cable, a connector, and an earphone. Some have a radio, etc. and a winding part integrated into one, but the winding has to be done manually.

[Problem that the invention seeks to solve]

Although significant progress has been made in the above-mentioned conventional earphone devices in terms of improved sound quality and reduction in weight and size, there is a drawback in that sufficient consideration has not been taken from the perspective of use. .

For example, when using earphones, users were forced to unwind and wrap the cable. Furthermore, if the cable is stored in a bag, bag, or pocket without being wrapped, the cable often gets tangled, which is inconvenient. Some models have a radio, etc., and a winding part integrated into one, but because the winding is done manually, there is a drawback that the work cannot be done without taking it out of the bag or pocket. In addition, since the cable used is a round cable, it has the disadvantage that it tends to get tangled when being wrapped and unwrapped.

[Means for solving problems]

The earphone device of the present invention uses a flat cable that is hard to get tangled and easy to wind, and includes a rotating reel device for winding the cable, a spring device for driving the rotating reel, a stopper device for stopping the rotation of the reel, and a rotating reel device for winding the cable. It consists of a switch that starts the process and a rotary contact device, stores rotational energy in the mainspring during unwinding, and automatically winds the cable using the mainspring's rotational energy during winding.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a basic configuration diagram of the present invention.

An earphone 1 is connected to one flat cable 2 using two flat cables or round cables. One end of one flat cable 2 is attached so as to be wound around a rotating reel device 5. The rotary reel device 5 is housed within the chamber 6 and attached to the shaft of the chamber 6. The small chamber 6 is provided with a cable entrance for inserting a flat cable. A rotary contact device 7 is arranged to obtain electrical contact between the rotary reel device 5 and the chamber 6. The signal line and ground line from the flat cable are connected to the rotating contact device 7. Rotating contact device 7
Connect the other end to connector 8 for connecting to audio equipment. A rotation stop device 9 for stopping the rotation of the reel and a winding start switch 3 for starting the rotation of the reel are arranged in the small chamber 6. A mainspring 4 is installed in the small chamber 6, with one end fixed to the rotary reel device 5 and the other end fixed to the small chamber 6. The rotation stop device is constructed by providing the rotary reel device 5 with recesses or serrated recesses at regular intervals so that a portion of the stop device N9 engages with the recesses. A winding start switch 3 for releasing the engagement portion between the rotation stop device 9 and the rotating reel is installed in the small chamber. With the above configuration, when using the earphone, you can manually stretch it and wrap it using the wrapping start switch 3.
By operating this, it is possible to construct an earphone device that can automatically wrap the cable using the force stored in the mainspring when it is stretched.

Next, a second embodiment of the present invention is shown in FIG.

FIG. 2 is the same as FIG. 1 except that the flat cable 2 wound around the rotating reel is connected to the audio equipment connector 8 instead of the earphone. In the second embodiment, a flat cable is connected to an audio device, and a clip or the like is attached to the compartment 6, which is made smaller by using the flat cable 2, and can be used by fixing it to a breast pocket or the collar of clothes. Furthermore, by adding a signal line within the flat cable 2 and adding a switch thereof to the small chamber 6, the audio equipment can be controlled and operated without touching the audio equipment stored in a bag or the like. Furthermore, if the flat cable 2 is used on the audio equipment side, there is no need to divide the cable into two, and the structure is simple.

The cable on the earphone side is short enough, so there is no practical problem.

FIG. 3 is an external view of FIG. 1. However, this is an example in which a short cable 10 for connecting an audio device and a connecting connector 8 are mounted instead of the connecting connector 8 shown in FIG.

FIG. 4 shows a circuit block diagram of the earphone device shown in FIG. 1. The audio signal is supplied from the connector 8, passes through the rotary contact device 5, the flat cable 2, and reaches the earphone 1, where it becomes sound.

FIG. 5 shows an example of the flat cable used in the present invention. In the figure, A, B, C, and D are all cross-sectional views of the flat cable. Cross-sectional views A to C are examples using materials that allow flexible printed wiring. Cross-sectional view A is 2
Arrange real signal lines, arrange ground lines to surround each signal line, and then arrange planar ground lines above and below.
This is an example in which an insulator is formed between each wire and the entire wire is covered with an insulating coating.

With this configuration, it is possible to create a cable that has the same shielding effect as a conventional shielded wire and is thin and easy to wind. Cross-sectional views B and C show a cable with fewer ground signal wires than the flat cable shown in the cross-section. Although this configuration weakens the shielding effect, it is possible to manufacture a more flexible cable at a lower cost. The cross-sectional diagram is an example in which a conventional original shielded cable is used and surrounded by an insulating coating to form a flat cable.

FIG. 6 is used to illustrate the advantages of using a flat cable. In the figure, E, F, and G show cross-sectional views of the cable wound around the reel. In the past, the original cable was manually wound onto a wide reel as shown in Figure E, but the cables tend to get tangled, and the later-wound cable gets wedged under the earlier-wound cable, making it impossible to unwind. There are drawbacks. Similarly, as shown in cross-sectional view F, there is also a structure that uses the original cable to wind manually, but since earphone cables are thin, there is no space between the reel and the cable. Because there is no
When the gap is narrowed, winding becomes difficult, and when the gap is widened, the cable bites into the gap, causing the cable to become stuck. In the present invention, the cable is made flat in consideration of winding the cable with a spring, solving the problem of the gap between the reel and the cable, and creating a structure that prevents the cable from twisting.

FIG. 7 shows the structure of the rotary contact device 7 used in the example. It is composed of a concentric donut-shaped contact plate 11 and a contact terminal 12 that contacts the donut-shaped contact plate. The donut-shaped contact plate 11 may be mounted on either the rotary reel device 5 or the small chamber 6. Contact terminal 12 is mounted on the opposite side. The contact terminal 12 has a plate spring structure and has two or more contact points for one signal. This enables stable electrical connection.

By interlocking the winding start switch 3 and the contact terminal 12, the contact terminal 12 can be configured to be non-contact while the rotary reel device is rotating and to be in contact when the rotary reel device is stopped. This prevents annoying noise when rotating,
Eliminates contact wear and enables high-quality listening.

FIG. 8 shows an embodiment of the cable of one part of the earphone.

As an example of making two cables flat, H, J, and
The structure is shown in K, and can be easily integrated into one. Of course, since the earphone cable is short, it may be wrapped around the small chamber 6 as it is, or it may be wrapped around the rotary reel device 5.

FIG. 9 shows a rotation stop device 9 for the rotating reel device 5.
A conceptual diagram of the winding start switch 3 is shown. In the embodiment, the rotary reel device 5 is provided with a serrated portion, and the rotation stop device 9 is engaged with this portion to stop the rotation. N9 is equipped with a stop using a spring on the shaft.
is pressed onto the rotating reel. By pressing the winding start switch 3, the stop device 9 is lifted 5 from the serrated portion, the rotary reel is rotated by the force of the mainspring, and the cable is wound. If the cable winding speed is too high, pressing the winding start switch more forcefully will reduce the speed due to the friction of the brake section.

〔Effect of the invention〕

As explained above, by using a flat cable as an earphone cable and automatically winding it with a spring, the troublesome work of winding the cable is eliminated.
This has the effect of eliminating the problem of cable tangles and enabling comfortable listening.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing one embodiment of the present invention, Fig. 2 is a block diagram showing a second embodiment of the present invention, Fig. 3 is an external view of the embodiment of Fig. 1, and Fig. 4 is a block diagram showing a second embodiment of the present invention. Basic circuit block diagram, Fig. 5 is a sectional view of the flat cable used in this example, Fig. 6 is a sectional view of a rotating reel showing the conventional cable winding method and the winding method of the present invention, and Fig. 7 is a rotating contact Device configuration diagram, No. 8
The figure shows a cross-sectional view of the cable in the earphone section. FIG. 9 shows a conceptual diagram of a rotation stop device and a winding start switch for the rotary reel device. 1...Earphone 2...Flat cable 2-1...Signal line 2-2...Ground wire 2-3...Ground wire 2-4...Insulator 2- 5... Insulating coating 3... Winding start switch 4... Mainspring 5... Rotating reel device 6... Small chamber 7... Rotating contact device 8... ... Connection connector 9 ... Rotation stop device 1o ... Cable 11 ... Donut-shaped contact plate 12 ... Contact terminal 13 ... Cable reinforcement section 14 ...・・・Brake part

Claims (2)

[Claims] (1) A flat cable that accommodates a signal line, a reel device that wraps the cable, a small chamber that has a shaft that rotates the reel device and stores the reel device, a spring device that rotates the reel, and a spring device that rotates the reel. a stop device for stopping, a rotating contact device for maintaining electrical contact between the rotating reel device and the chamber, and one or two attached to the end of the cable.
This is an automatic cable winding type earphone device that automatically winds up the cable with a single touch, and has two earphones, a connector that connects the small chamber and audio equipment, and a switch device that starts winding. (2) The cable automatic wind-up type earphone device according to claim (1), in which only 20 to 30 centimeters of the earphone attachment portion is a round cable.