JP3520533B2 - Headphone equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headphone device,
It is particularly suitable for use in wireless headphones. In recent years, so-called wireless headphones, in which audio signals are transmitted by radio waves (infrared rays) from an audio device and received and reproduced by a headphone device, have been widely used in headphones. In this wireless headphone, a battery is used as a power supply for a receiving and reproducing circuit in the headphone. However, if the power supply is turned on / off manually, the power supply may be forgotten to be turned off. It is convenient to have a structure in which turning on / off is performed automatically. As a headphone device for automatically turning on / off the power, a conventional headphone device has been disclosed in Japanese Utility Model Application Laid-Open No.
No. 35690 ”. In this conventional headphone device, a switch for controlling the power on / off is arranged near one headphone unit of a pair of headphone units (speaker units) provided on the left and right, and this switch is rotated by the rotation of the headphone unit. It is configured to operate by displacement, that is, the switch is off when the headphones are not used, and when the headphones are mounted on the head, the headphone unit is rotationally displaced and presses the switch, and the power is turned on. ing. However, the conventional headphone device as described above has a structure in which a switch provided in the vicinity of the headphone unit is operated by the rotational displacement of the headphone unit. Even when the headphone unit is placed in a normal state (in a state of being laid down), the headphone unit may rotate, and a switch may be operated unexpectedly to turn on the power. The present invention has been made in view of the above, and an object of the present invention is to provide a headphone device that does not have a possibility of causing the malfunction as described above. In order to achieve the above object, the present invention provides a headphone device having a pair of headphone units on both left and right sides of a headband portion. A base provided at one end includes a switch for performing on / off control, and an arm member rotatably pivoted in and out so that one end faces the switch. The headphone unit is supported on the other end of the arm member. Further, in this configuration, in the present invention,
A projecting piece that comes into contact with the base portion is integrally protruded from the arm member, and the elasticity of the projecting piece causes the arm member to rotate in the return direction. When the headphone device constructed as described above is mounted on the head, the arm member is pivoted in the direction in which one end of the head member presses the switch by pushing the headphone unit outward. Therefore, the switch is operated and the power is turned on. Also, when the headphone device is removed from the head from this state, the pressing of the headphone unit is released, and the arm member is returned and rotated by the elastic reaction force due to the bending of the protruding piece formed integrally therewith. Is released and the power is turned off. Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, a wireless headphone using infrared rays, that is, an infrared signal obtained by converting an audio signal from a transmitting device on the side of an audio device is transmitted, and the infrared signal is received and reproduced by a headphone device. . First, an outline of the headphone device will be described with reference to FIGS. In FIG. 1, reference numeral 1 denotes a headphone device (wireless headphone) as a whole, 2 denotes a flexible headband portion, and 3 and 4 denote bases provided continuously on both left and right ends of the headband portion 2. Department. The base portions 3 and 4 are covered with covers 5 and 6, respectively, and an electronic circuit for receiving and reproducing a signal, a storage portion for a battery serving as a power source thereof, and the like are arranged inside the base portions 3 and 4. The covers 5 and 6 of the base portions 3 and 4 are provided with infrared light receiving portions 7 and 8, respectively, and the infrared signals transmitted from the transmitting device on the audio equipment side receive the infrared light receiving portions 7 and 8 respectively. Is to be received. Reference numerals 9 and 10 denote headphone units (speaker units) which are supported inside and outside the left and right base units 3 and 4, respectively. The signals received by the infrared light receiving units 7 and 8 are transmitted to the headphone units 9 and 10 respectively. Is reproduced and output as audio. The headphone device 1 thus configured has a structure in which the power is turned off when not in use, and the power is automatically turned on when the headphone device 1 is worn on the head. A mechanism for automatically turning on / off the power supply will be described in detail with reference to FIG. FIG. 1 shows the structure of a base portion 4 on one side (the right side in this example) of the headphone device 1, and a circuit board 12 on which electronic components are mounted inside a cover 6 is provided above the base portion 4. Is fixed, and the circuit board 12
A switch 13 for turning on / off the power supply is mounted on the top. The switch 13 is a so-called tact switch, which is turned on when the operator is pressed, and turned off when the operator is released. A bearing portion 14 is provided on the base portion 4 below the mounting portion of the switch 13, and the shaft portion 1 having an arm member 15 formed at the center portion of the bearing portion 14 is provided.
At 6, it is pivotally supported (rotated) inward and outward. The arm member 15 has one end (upper end) 15a at the tip end facing the switch 13, while the other end (lower end) 15b extends from the cover 6 inside the base 4. Put out the headphone unit 10
Is supported. The headphone unit 10 can be moved and adjusted along the longitudinal direction of the arm member 15, so that the height position of the headphone unit 10 can be changed according to the user's preference. I have. The arm member 15 has a shaft support (shaft 1).
6), a protruding tongue piece 17 is integrally protruded, and the tip of the tongue piece 17 comes into contact with a part of the base 4 so that the arm 15 turns in the direction in which the switch 13 is pressed. When the arm member 15 is moved, the projecting tongue piece 17 bends, and the arm member 15 is given a rotational force in the return direction by the elastic reaction force. Further, a light receiving element 18 constituting the infrared light receiving section 8 is mounted on the arm member 15, and the light receiving element 18 receives (receives) an infrared signal from the transmitting device. Note that a part of the cover 6 covering the light receiving element 18 forms an infrared light receiving section 8 as a light receiving window 19 that transmits infrared light. When the headphone device 1 constructed as described above is mounted on the head, the headband portion 2 is bent to widen the space between the headphone units 9 and 10 on both sides, and therefore the headphone unit 10 is pressed outward. As a result, the arm member 15 rotates against the elasticity of the protruding tongue piece 17, and the tip of the one end 15a presses the switch 13 (see FIG. 4). When the switch 13 is depressed in this way, the power is turned on, the infrared signals from the transmitting device are received by the infrared receiving units 7 and 8, and the reproduced sound is output from the headphone units 9 and 10. You. When the headphone device 1 is removed from the head from this state, the pressing of the headphone unit 10 is released, so that the arm member 15 is returned and rotated by the elastic reaction force due to the bending of the protruding tongue piece portion 17, so that the switch is turned off. The operation of 13 is released and the power is turned off. As described above, in the headphone device 1 of the present embodiment,
Since the power is turned on when the battery is attached and turned off when the battery is removed, there is no fear of forgetting to turn off the power, and wasteful consumption of the battery can be prevented. In the mechanism for automatically turning on / off the power supply, a switch 13 is provided at a position away from the headphone unit 10.
And the arm member 1
Reference numeral 5 indicates that the headphone device 1 is mounted on the head and the switch 13 is operated by rotating only when the headphone unit 10 is pressed outwardly. There is no chance that the power is turned on. In this mechanism, the arm member 1
Since the arm member 15 is configured to return and rotate by the projecting tongue piece 17 integrally formed with the arm member 5, there is no need to separately provide a member for applying a return rotation power to the arm member 15. For this reason, the configuration is simplified, the number of components is reduced, and the cost is reduced. In this configuration, the rigidity of the main body portion of the arm member 15 and the rigidity of the protruding tongue piece 17 are appropriately set so that the arm member 15 is rotated from the initial position to the position where the switch 13 is pressed. The operating force at each operating point (the point at which the switch 13 is pressed and the point at which the protruding tongue piece 17 abuts against the base portion 4) can be set arbitrarily, whereby the force required for the pressing operation of the switch 13 can be set. The force applied to the headphone unit 10 (the force pressing the headphone unit 10) can be adjusted in accordance with. Further, in this mechanism, since the light receiving element 18 constituting the infrared light receiving section 8 is mounted on the arm member 15, there is no need to provide a space for mounting the light receiving element 18 on the circuit board 12. The space can be effectively used, and the light receiving element 18
Is located at a position higher than the circuit board 12 (a position closer to the light receiving window 19), so that it is easy to receive the infrared signal from the transmitting device, that is, it is possible to receive the infrared signal well from all angles. The case where the embodiment of the present invention is applied to a wireless headphone using infrared rays has been described above.
It goes without saying that the present invention can be applied not only to wireless headphones but also to ordinary headphones. As described above, according to the present invention, when the headphone device is mounted on the head, the power is automatically turned on, and when the headphone device is removed, the power is turned off. Wear can be reliably prevented. In the present invention, the power is turned on only when the headphone device is worn on the head, that is, there is a possibility that a malfunction that the power is turned on unexpectedly only by placing the headphone device normally as in the related art may occur. Since there is no such headphone, it is possible to provide a headphone device with a reliable operation and high reliability. Further, in the present invention, since the arm member is configured to return and rotate by the projecting piece formed integrally with the arm member, it is necessary to separately provide a member for applying the return rotation power to the arm member. For this reason, the configuration is simplified, the number of parts is reduced, and the cost is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a headphone device according to an embodiment. FIG. 2 is a front view of the headphone device according to the embodiment. FIG. 3 is a cross-sectional view of a main part of the headphone device according to the embodiment, in which a power supply is off. FIG. 4 is a cross-sectional view of a main part of the headphone device according to the embodiment, in which a power supply is turned on. [Description of Signs] 1 Headphone device 2 Headband unit 3, 4 Base unit 9, 10 Headphone unit 13 Switch 15 Arm member 17 Projecting tongue piece 18 Light receiving element

Claims (1)

(1) A headphone device comprising a pair of headphone units on both left and right sides of a headband portion, the headband device being provided at at least one end of the headband portion. A switch for performing on / off control on a base portion, and an arm member rotatably supported in an inward / outward direction such that one end thereof is opposed to the switch, and the other end of the arm member The headphone unit is supported, and when the headphone unit is pressed outwardly at the time of mounting, the arm member rotates and the switch is operated, and the arm member includes A projecting piece abutting on the base portion side is integrally formed and protruded, and the arm member is rotated in a return direction by elasticity of the projecting piece. Headphone device.