JP2006345465A - Sound emitting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve usability irrespective of using statuses. <P>SOLUTION: For an enclosure body, an enclosure right side opening/closing unit 6 housing a right speaker 10 is attached from a position where a right end surface 4A abuts on the entire of a first opening 6A so as to be freely opened and closed within a range of a predetermined angle, and an enclosure left side opening/closing unit 7 housing a left speaker 11 is attached from a position where a left end surface 5A abuts on the entire of a second opening 7A so as to be freely opened and closed within a range of a predetermined angle. In this way, the units 6, 7 are closed when the apparatus is not used to completely conceal the entire of the right and left speakers 10 and 11 from the outside, thereby completely preventing damages; and the units 6, 7 are opened when sounds are emitted to allow the right and left speakers 10 and 11 to face the outside, thereby enabling to listen to sounds. Thus, the usability is improved for all cases where the apparatus is not used and sounds are emitted. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sound emitting device, and is suitable for application to, for example, a music playback device.

In a conventional speaker, a pair of speaker units formed by housing a speaker main body in a shallow box-like case is rotatably attached to a columnar connecting portion. In each speaker unit case, one or a plurality of through holes as sound emitting portions are formed in the bottom portion and the lid portion opposed to the bottom portion. When the speaker units are closed so that the speaker units face each other with the lids of the cases facing each other, the speaker units and the connecting portions are integrated into a flat plate shape to improve portability. In addition, the speaker emits sound to the outside from the bottom of the case and the through-hole of the lid in each speaker unit in a state where each speaker unit is opened so as to separate the lid of each case (for example, , See Patent Document 1).
JP 2000-358291 A (Page 5, FIGS. 1 and 5)

  By the way, when the speaker units are opened in the speaker having such a configuration, the opening angle between the speaker units can be freely changed, so that the direction of sound emitted from these speaker units (that is, the thickness direction of the case) can be changed. It can be changed freely. Further, when the speaker units are closed, the speaker can conceal the through hole formed in the lid portion from the outside by making the lid portions of the cases face each other. For this reason, when the speaker units are closed, the speaker prevents a foreign body from being inserted into the case through a through hole formed in the lid of the case and damaging the speaker body.

  However, in the speaker having such a configuration, even if the speaker units are closed, the through holes formed in the bottom portions of the cases remain exposed to the outside. For this reason, even when the speaker units are closed, there is a possibility that foreign matter is inserted into the case through the through hole formed in the bottom of the case and the speaker body is damaged. Therefore, it cannot be said that the speaker can reliably protect the speaker main body when the speaker units are closed, and there is a problem that it is difficult to use depending on the use situation.

  The present invention has been made in consideration of the above points, and an object of the present invention is to propose a sound emitting device that can remarkably improve usability regardless of use conditions.

  In order to solve such a problem, in the present invention, a pair of first and second speakers, a casing main body having one and the other end faces facing each other, and the first speaker are accommodated in the first speaker. A first opening that exposes only the front surface of the diaphragm of the speaker; a position at which one end face and the entire first opening abut against the housing body; and the first opening from the one end face. A first opening / closing portion that is attached so as to be openable / closable within a predetermined angle range with respect to the position of separating the second speaker, and a second opening that houses the second speaker and exposes only the front surface of the diaphragm of the second speaker. And is attached to the housing main body so as to be openable and closable within a predetermined angular range between a position where the other end face and the entire second opening abut and a position where the second opening is separated from the other end face. And a second opening / closing part.

  Therefore, in the sound emitting device of the present invention, when the use is stopped, the first and second opening / closing portions are closed with respect to the housing main body portion so that the entire first and second openings are brought into contact with one and the other end surfaces. The entire first and second speakers can be completely hidden from the outside so that nothing can be touched, thereby reliably preventing the first and second speakers from being damaged. Further, in the sound emitting device, when the sound is emitted, the first and second opening / closing portions are opened with respect to the housing main body portion so that the first and second speakers are arranged so that the diaphragm faces the outside, respectively. Can be heard.

  According to the present invention, the first opening that houses the first speaker and exposes only the front surface of the diaphragm of the first speaker with respect to the housing main body portion having one and the other end faces facing each other is provided. The first opening / closing portion having the first opening / closing portion is attached so as to be openable / closable within a predetermined angle range between a position where one end face is brought into contact with the entire first opening and a position where the first opening is separated from the one end face. A second opening / closing portion having a second opening that accommodates the second speaker and exposes only the front surface of the diaphragm of the second speaker, and a position where the other end surface and the entire second opening are brought into contact with each other. The first and second opening / closing parts are closed with respect to the main body of the casing when the use is stopped by mounting the opening so as to be able to be opened and closed within a predetermined angle range from the position where the second opening is separated from the other end face. One and the other end of the entire first and second openings The first and second speakers are completely hidden from the outside so as not to touch anything, and the first and second speakers can be reliably prevented from being damaged. When sound is emitted, the first and second opening / closing parts can be opened with respect to the main body of the housing, so that the first and second speakers can be arranged so that the diaphragm faces the outside, respectively, and the sound can be heard. Thus, it is possible to realize a sound emitting device that can improve the usability at all times when the use is stopped and when the sound is emitted regardless of the state of use.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  1A and 1B and FIG. 2, reference numeral 1 denotes a music playback apparatus to which the present invention is applied as a whole. For example, a substantially spheroid device housing (hereinafter referred to as a spheroid housing). 2). Such a spheroid-shaped housing 2 includes a housing central portion 3 that is a substantially barrel-shaped portion at the center thereof, and one end portion (hereinafter referred to as “this”) of a pair of opposite ends of the housing central portion 3. A first casing rotation part (hereinafter referred to as a casing right rotation part) 4 formed of a substantially truncated cone-shaped portion located on the side of the right end part) and the other end part (hereinafter referred to as a right end part). A second casing rotating part (hereinafter referred to as a casing left-side rotating part) 5 consisting of a substantially frustoconical portion located on the side of the left-hand side part, and a right-hand side rotation of the casing. A first housing opening / closing portion (hereinafter referred to as a housing right-side opening / closing portion) 6, which is located on the right end surface 4 </ b> A side of the moving portion 4 and is a substantially conical portion having a first recess, and a left side of the housing A second housing opening / closing portion (hereinafter, referred to as a housing left-side opening / closing portion) which is located on the left end surface 5A side of the rotating portion 5 and is a substantially conical portion having a second recess. It is composed of a. Incidentally, when the spheroidal casing 2 is regarded as a casing main body unit in which the casing central part 3, the casing right side rotating part 4 and the casing left side rotating part 5 are integrated, Of the one and the other end surfaces of the main body portion facing each other, the one end surface is the right end surface 4A of the case right side rotation unit 4 and the other end surface is the left end surface of the case left side rotation unit 5.

  In this case, a line segment (ie, the length of the spheroid) that connects the rightmost point and the leftmost vertices P2 and P3 of the surface of the spheroid-shaped casing 2 farthest from the center point P1 of the spheroid-shaped casing 2 with a straight line. Assuming that the axis) is the horizontal rotation axis L1, the housing right-side rotation part 4 is in one direction around the axis indicated by the arrow D1 around the horizontal rotation axis L1 with respect to the right end of the central part 3 of the casing. It is pivotally supported so that it can be rotated in the other direction around the axis opposite to that. Further, the housing left-side rotation part 5 is pivotally supported so as to be rotatable in one direction around the axis and in the other direction around the axis with respect to the left end of the central part 3 of the casing around the horizontal rotation axis L1.

  Further, as shown in FIG. 3, the housing right side opening / closing part 6 has a hinge part 8 provided at a predetermined position on the edge of the right end surface 4 </ b> A of the case right side rotation part 4 with respect to the case right side rotation part 4. It can be opened and closed within a predetermined angle range. Incidentally, the housing right side opening / closing part 6 has, for example, the right end surface 4A and the first side from the position where the right end surface 4A and the entire first opening 6A of the first recess are brought into contact with the housing right side turning part 4. Arbitrary within a predetermined angle range, for example, up to a position where the opening angle with the opening 6A is approximately 90 degrees or a position where the outer surface of the right side opening / closing part 6 contacts the side surface of the right side rotation part 4 Open at an angle. Further, the housing left opening / closing part 7 (FIG. 3) is predetermined with respect to the case left rotation part 5 via a hinge part 9 provided at a predetermined position on the left end surface 5A edge of the case left rotation part 5. It is attached so that it can be opened and closed within an angular range. Incidentally, the housing left side opening / closing part 7 has, for example, the left end surface 5A and the second end from the position where the left end surface 5A and the entire second opening 7A of the second recess are brought into contact with the housing left rotation part 5. Any predetermined angle range such as a position at which the opening angle with the opening 7A is approximately 90 degrees, or a position where the outer surface of the housing left-side opening / closing portion 7 is brought into contact with the side surface of the housing left-side rotation portion 5 Open at an angle.

  In the first concave portion (FIG. 1B and FIG. 2) of the housing right side opening / closing part 6, the first speaker for the right channel of the pair of first and second speakers 10 and 11 for stereo ( Hereinafter, this is referred to as a right speaker) 10 is housed by exposing only the front surface of the circular diaphragm from the first opening 6A of the first recess. The housing right side opening / closing part 6 can be opened and closed independently of the housing left side opening / closing part 7, and rotates via the hinge part 8 so that the entire first opening 6A is rotated to the right side of the housing. When closed by contacting the right end surface 4A of the portion 4, the diaphragm of the right speaker 10 can be hidden from the outside. On the other hand, when the case right opening / closing part 6 is rotated via the hinge part 8 and opened so as to separate the first opening 6A from the right end surface 4A of the case right rotation part 4, the right speaker The front face of the ten diaphragms can be directed to any external direction. On the other hand, in the second recess of the housing left side opening / closing part 7, a second speaker for the left channel (hereinafter referred to as the left speaker) 11 having the same configuration and the same shape as the right speaker 10 has a circular diaphragm. Only the front side is exposed from the second opening 7A of the second recess, and stored. As a result, the housing left-side opening / closing part 7 rotates via the hinge part 9, and the left speaker 11 is closed when the entire second opening 7 </ b> A is brought into contact with the left end surface 5 </ b> A of the housing left-side rotation part 5. The diaphragm can be hidden from the outside. On the other hand, when the case left opening / closing part 7 is rotated via the hinge part 9 and opened so as to separate the second opening 7A from the left end surface 5A of the case left rotation part 5, the left speaker The front surface of the eleventh diaphragm can be directed in any external direction.

  By the way, the right speaker 10 and the left speaker 11 are formed such that the diameter of the diaphragm is larger than the overall thickness from the front to the back of the diaphragm. Further, as shown in FIG. 4, the housing right side opening / closing portion 6 and the housing left side opening / closing portion 7 are based on the first and second openings 6 </ b> A and 7 </ b> A according to the shapes of the right speaker 10 and the left speaker 11. The diameters L6 of the first and second openings 6A and 7A are longer than the width L5 to the vertices P2 and P3. Therefore, the spheroid housing 2 has an entire length along the horizontal rotation axis L1 (that is, the spheroid shape) when the housing right side opening / closing portion 6 and the housing left side opening / closing portion 7 are opened. The length of the casing 2 in the longitudinal direction, which is hereinafter referred to as the casing width, is longer than the horizontal rotation axis L1 (that is, the major axis of the spheroid). However, the spheroid-shaped casing 2 makes the entire casing as small as possible when both the casing right opening / closing section 6 and the casing left opening / closing section 7 are closed (that is, the casing width is set horizontally). It can be made compact by making it the same length as the long axis of the spheroid along the rotation axis L1, and the storage property is improved.

  Further, as shown in FIGS. 5 and 6, the casing right side rotation unit 4 is configured to be able to rotate independently of the casing left side rotation unit 5, and the casing right side opening / closing unit 6 is optional. Is rotated at an angle of 5 degrees, the front side of the diaphragm of the right speaker 10 housed in the right side opening / closing part 6 of the case is set to the front direction and the back direction of the case center part 3, and the upward direction and the downward direction. Can be directed in various directions. On the other hand, when the housing left opening / closing portion 7 is also rotated with the housing left opening / closing portion 7 opened at an arbitrary angle, the front side of the diaphragm of the left speaker 10 housed in the housing left opening / closing portion 7 is also provided. Can be directed in various directions such as the front direction and the back direction of the housing central part 3, and the upward and downward directions.

  In addition to this, as shown in FIGS. 1A and 1B and FIG. 2, the right end portion of the housing central portion 3 has a predetermined outer diameter larger than the maximum outer diameter of the housing central portion 3. A ring-shaped right housing support 12 is attached. A left housing support 13 having the same shape and outer shape as the right housing support 12 is attached to the left end of the housing central portion 3. Further, a weight 14 is fixed at a predetermined position on the inner wall in the central portion 3 of the casing. And the housing | casing center part 3 is the distance from the center point P1 of the spheroid housing | casing 2 to the right side edge part (namely, housing | casing right side support part 12), and the center point P1 of the said spheroid housing 2 Is selected to be a predetermined distance that is substantially equal to the distance from the left end to the left end (that is, the case left support 13). Moreover, the housing | casing right side rotation part 4 and the housing | casing left side rotation part 5 become the mutually same shape, and the mutual width | variety is selected to the predetermined width | variety substantially equal. Further, the housing right side opening / closing part 6 and the housing left side opening / closing part 7 have the same shape as each other, from the first and second openings 6A and 7A of the first and second recesses to the apexes P2 and P3 on the surface, respectively. The width L5 is selected to be approximately equal to a predetermined length. In other words, the spheroid housing 2 is formed such that the left and right sides thereof are surface targets with respect to a virtual plane (not shown) passing through the center P1 of the spheroid housing 2 and having the horizontal rotation axis L1 as a perpendicular. Yes.

  Therefore, when the spheroid housing 2 is placed on a desk or the like, the outer peripheral surface of the maximum outer shape of the housing central portion 3 is slightly separated from the top plate surface of the desk or the like, and the horizontal rotation axis L1 is supported by the right case supporter 12 and the left case supporter 13 in a posture parallel to the top surface of the desk or the like. In addition, the spheroid housing 2 is placed on a desk or the like because the center of gravity of the housing central portion 3 is displaced from the center point P1 toward the inner wall by the weight 14 in the housing central portion 3. In this case, the weight 14 is positioned vertically downward (that is, the center of gravity of the weight 14 portion is as close as possible to the top plate surface of a desk or the like) (hereinafter referred to as a loading reference posture). . And the weight 14 in the frame center part 3 is selected as a comparatively heavy weight. Therefore, when the spheroid housing 2 is placed on a desk or the like while being supported by the right housing support 12 and the left housing support 13, the housing right opening 6 and the housing left opening 6 Even if each 7 is independently opened at an arbitrary angle, the loading reference posture can be maintained without tilting to the right side or the left side.

  In addition, the right side light emitting part 15 of the circular arc shape which emits light is provided on the side surface of the housing right side turning part 4. In addition, the left side light emitting unit 16 that emits light is provided on the side surface of the housing left side rotation unit 5. The right side light emitting unit 15 and the left side light emitting unit 16 are formed so as to emit light by changing the light emission state, such as the whole or a part, or the emission color.

  Next, the circuit configuration of the music playback device 1 will be described with reference to FIG. Each circuit of the music reproducing apparatus 1 is provided in the spheroid housing 2. In this case, the control unit 20 composed of a CPU (Central Processing Unit) or the like that comprehensively controls the entire music playback device 1 receives music data supplied from an external personal computer (not shown), for example, as a USB (Universal Serial Unit). Bus) The data is taken in and stored in the storage unit 22 made of a semiconductor memory or the like via the interface unit 21 made of a connector or the like. When the reproduction command is input via the operation unit 23 such as an operation key provided on the surface of the spheroid-shaped housing 2 or an external remote controller, the control unit 20 responds to this from the storage unit 22. The music data is read out and sent to the music playback processing unit 24. The music reproduction processing unit 24 performs predetermined music reproduction processing such as decoding processing, digital / analog change processing, amplification processing, and the like on the music data given from the control unit 20, and the resulting music signal is output to the right speaker 10. And sent to the left speaker 11. As a result, the right speaker 10 and the left speaker 11 emit music based on the music signal for listening.

  For example, the control unit 20 stores light emission pattern data indicating light emission patterns of the right light emitting unit 15 and the left light emitting unit 16 in advance in the storage unit 22 in accordance with the musical tone based on the music data. Therefore, when the control unit 20 reads out music data from the storage unit 22 and performs music reproduction processing, the control unit 20 also reads out light emission pattern data corresponding to the music data from the storage unit 22. And the control part 20 controls the light emission state of the right side light emission part 15 and the left side light emission part 16 based on this light emission pattern data. As a result, the control unit 20 causes the right light emitting unit 15 and the left light emitting unit 16 to emit light in synchronization with the music tone emitted from the right speaker 10 and the left speaker 11.

  In the above configuration, the music playback device 1 manually closes the casing right side opening / closing part 6 with respect to the casing right side rotating part 4 and the casing left side opening / closing part 7 when the use is stopped. Can be closed. Therefore, when the use of the music player 1 is stopped, the right speaker 10 is exposed at the housing right side opening / closing part 6 (that is, the front surface of the diaphragm of the right speaker 10 is exposed). The right opening surface 4A of the moving part 4 is closed, and the left speaker 11 is exposed at the housing left side opening / closing part 7 (that is, the front surface of the diaphragm of the left speaker 11 is exposed). It can be blocked by the left end surface 5 </ b> A of the rotating unit 5. Therefore, when the use is stopped, the music playback device 1 completely hides the right speaker 10 and the left speaker 11 from the outside so as not to touch anything, thus reliably preventing the right speaker 10 and the left speaker 11 from being damaged. be able to.

  Further, the music playback device 1 manually opens the casing right side opening / closing part 6 at an arbitrary angle with respect to the casing right side rotation part 4 and also rotates the casing left side opening / closing part 7 when the music data is reproduced. The unit 5 can be opened at an arbitrary angle. Therefore, the music reproducing device 1 allows the user to listen to music based on the music data in a state where the right speaker 10 and the left speaker 11 are arranged so that the diaphragm faces the user (for example, the head) when reproducing the music data. be able to. At this time, the music playback device 1 has the right speaker 10 and the left speaker 11 interposed between the housing central portion 3, the housing right-side rotation portion 4 and the housing left-side rotation portion 5. Separate appropriately. For this reason, the music reproducing apparatus 1 can avoid the music that is emitted from the right speaker 10 and the left speaker 11 from interfering with each other, thus making the music spread and improving the sound quality. Furthermore, the music player 1 opens the first opening 6A of the case right opening / closing part 6 at an arbitrary angle with the first opening 6A adjacent to the right end surface 4A of the case right rotation part 4, so that it can be released from the right speaker 10. The sounding music can be reflected to the right of the spheroid housing 2 by the right end surface 4A. In addition, the music player 1 opens the second speaker 7A of the left side opening / closing part 7 at an arbitrary angle in a state where the second opening 7A is adjacent to the left end surface 5A of the left side turning part 5 in the same manner. 11 can be reflected to the left of the spheroid housing 2 by the left end face 5A. Therefore, the music reproducing apparatus 1 can improve the sound quality by giving a richer sound spread to the music emitted from the right speaker 10 and the left speaker 11. Incidentally, in the music playback device 1, the right speaker 10 and the left speaker 11 according to the opening angle of the case right opening / closing unit 6 and the case left opening / closing unit 7 with respect to the case right rotation unit 4 and the case left rotation unit 5. The frequency component and intensity when the music emitted from the sound is reflected by the right end surface 4A and the left end surface 5A are different. In the music playback device 1, the case right opening / closing unit 6 and the case left opening / closing unit 7 can be opened at an arbitrary angle with respect to the case right rotation unit 4 and the case left rotation unit 5, so that the user can On the other hand, the opening angle of the casing right / left opening / closing part 6 and the casing left opening / closing part 7 can be freely adjusted so that the sound quality of the music emitted from the right speaker 10 and the left speaker 11 becomes a desired sound quality. Can do.

  According to the above configuration, in the spheroid housing 2 of the music playback device 1, the housing right opening / closing portion 6 is connected to the housing right rotation portion 4 attached to the right end of the housing central portion 3. A position where the entire first opening 6A of the right side opening / closing part 6 is brought into contact with the right end surface 4A of the right side rotation part 4 and a position where the first opening 6A is separated from the right end surface 4A. The right speaker 10 is accommodated in the first recess of the right opening / closing part 6 so that only the front face of the diaphragm is exposed from the first opening 6A. . Further, in the spheroid housing 2, the housing left opening / closing portion 7 is connected to the housing left rotation portion 5 attached to the left end of the housing central portion 3, and the left end surface of the housing left rotation portion 5. 5A is attached so as to be openable and closable within a predetermined angle range between a position where the entire second opening 7A of the housing left-side opening / closing portion 7 is in contact with the position where the second opening 7A is separated from the left end surface 5A, and The left speaker 11 is accommodated in the second recess of the housing left-side opening / closing part 7 so that only the front surface of the diaphragm is exposed from the second opening 7A. As a result, the music playback device 1 closes the casing right side opening / closing part 6 with respect to the casing right side rotation part 4 and stops the casing right side opening / closing by contacting the entire first opening 6A with the right end surface 4A when the use is stopped. The entire right speaker 10 in the section 6 is completely hidden from the outside so that nothing can be touched, and the housing left-side opening / closing section 7 is closed with respect to the housing left-side rotation section 5 so that the entire second opening 7A is left-ended. By abutting 5A, the entire left speaker 11 in the housing left-side opening / closing part 7 is completely hidden from the outside so that nothing can be touched, and the right speaker 10 and the left speaker 11 are reliably prevented from being damaged. can do. Further, the music playback device 1 opens the casing right opening / closing part 6 for the casing right rotating part 4 and opens the casing left opening / closing part 7 for the casing left rotating part 5 when reproducing music data. Thus, the right speaker 10 and the left speaker 11 can be arranged such that the diaphragm faces the user, and music based on the music data can be heard. Therefore, the music playback device 1 can improve the usability throughout the use when the use is stopped and the music data is played back regardless of the use situation.

  Further, the music playback device 1 has a vertex P2 from the first and second openings 6A and 7A rather than the diameter L6 of the first and second openings 6A and 7A of the housing right side opening / closing part 6 and the case left opening / closing part 7. And the width L5 to P3 is shortened. For this reason, the music playback device 1 increases in size in the case width direction when the case right side opening / closing part 6 and the case left opening / closing part 7 are opened, but the case right opening / closing part 6 and case When the left opening / closing part 7 is closed, it is possible to reduce the size in the width direction of the housing and improve the storage property.

  Further, the music playback device 1 pivotally supports the casing right side rotation part 4 and the casing left side rotation part 5 with respect to the casing center part 3 so as to be rotatable. For this reason, the music playback device 1 is configured such that when the music data is played back, the case right opening / closing portion 6 and the case left opening / closing portion 7 are opened with respect to the case right rotation portion 4 and the case left rotation portion 5, respectively. The front of the diaphragm of the right speaker 10 and the left speaker 11 is directed in an arbitrary direction by manually rotating the casing right rotating unit 4 and the casing left rotating unit 5 by an arbitrary rotation angle. Can do. Accordingly, the music playback device 1 can be rotated at the rotation angle of the case right-side rotation unit 4 and the case left-side rotation unit 5 regardless of the position of various heights such as a desk, a floor, and a shelf. Accordingly, the diaphragms of the right speaker 10 and the left speaker 11 can be easily directed to the user (for example, to the user's head different from the height of the place on which the music playback device 1 is mounted), thus Regardless of the height of the music playback device 1, it is possible for the user to listen to music with the best sound quality.

  In the above-described embodiment, the music player 1 manually opens and closes the case right opening / closing unit 6 and the case left opening / closing unit 7 with respect to the case right rotation unit 4 and the case left rotation unit 5. Although the present invention is not limited to this, the present invention is not limited to this, and in the music playback device, the housing right opening / closing unit 6 and the housing left opening / closing with respect to the housing right rotating unit 4 and the housing left rotating unit 5. The unit 7 may be automatically opened and closed via an opening / closing drive unit such as a motor.

  In this case, for example, as shown in FIG. 8 in which parts corresponding to those in FIG. 7 are denoted by the same reference numerals, in the music playback device 30, the control unit 31 rotates in the right side of the housing at the time of startup in response to an input of a power-on command. The storage unit 22 stores angle information indicating an angle at which the housing right side opening / closing unit 6 and the housing left side opening / closing unit 7 are opened with respect to the unit 4 and the housing left rotation unit 5. Then, the control unit 31 controls the opening / closing drive unit 32 according to the angle information in the storage unit 22 at the time of activation, thereby controlling the housing right side opening / closing unit 6 with respect to the housing right side rotating unit 4 and the housing left side rotating unit 5. In addition, the housing left side opening / closing part 7 is automatically opened to a predetermined angle. In addition to this, the control unit 31 controls the opening / closing drive unit 32 when starting and stopping to open / close the housing right side opening / closing unit 6 and the housing left side opening / closing unit 5 with respect to the housing right side rotating unit 4 and the housing left side rotating unit 5. The unit 7 is automatically closed. As a result, when the music playback device 30 is activated for playback of music data, the housing right-side opening / closing portion is provided to the housing right-side turning portion 4 and the case left-side turning portion 5 without any trouble of the user. 6 and the housing left-side opening / closing unit 7 can be automatically opened to a desired angle, and when the activation is stopped after the reproduction of the music data is finished, the housing right-side rotation unit without any trouble of the user's hand 4 and the housing left side opening / closing unit 5 are automatically closed with respect to the housing left side opening / closing unit 5 and the right speaker 10 and the left speaker 11 can be completely hidden from the outside. Therefore, in this way, the usability of the music playback device 30 can be further improved compared to the above-described embodiment.

  By the way, in the music reproducing apparatus 30 having such a configuration, every time the music playback device 30 is activated, the rotation angle of the case right side rotation unit 4 and the case left rotation unit 5 with respect to the case center 3 is fixed, and the case right rotation unit 4 is fixed. Only the housing right side opening / closing unit 6 and the housing left side opening / closing unit 7 open with respect to the housing left side rotation unit 5. For this reason, in the music playback device 30, the case right side opening / closing unit 6 and the case left opening / closing unit 7 are opened with respect to the case right rotating unit 4 and the case left rotating unit 5. The rotation angles of the case right side rotation unit 4 and the case left side rotation unit 5 are appropriately adjusted. As a result, in the music playback device 30, when the placement position of the music playback device 30 is fixed and the place where the user listens to music is fixed, for example, the right speaker 10 and the left The speaker 11 can always be placed toward the head to listen to music.

  Further, in the above-described embodiment, the case where the casing right side rotation part 4 and the casing left side rotation part 5 are pivotally supported with respect to the casing center part 3 has been described. However, the case central part 3, the case right side rotation part 4 and the case left side rotation part 5 are integrally formed as a case main body part, and the case right side rotation with respect to the case center part 3. The moving part 4 and the housing left-hand turning part 5 are not turned, and one and the other end surfaces of the housing body part facing each other (that is, the right end face 4A and the housing of the housing right-hand turning part 4 described above). The housing right side opening / closing part 6 and the housing left side opening / closing part 7 may be configured to be openable and closable via hinge parts 8 and 9 with respect to the left end surface 5A of the body left side turning part 5). Even in this configuration, the right speaker 10 and the left speaker 11 can be prevented from being damaged by closing the casing right side opening / closing part 6 and the casing left side opening / closing part 7 with respect to the casing main body when use is stopped, and music can be avoided. When reproducing data, the right speaker 10 and the left speaker 11 can be arranged so that the front of the vibration surface faces the user.

  Further, in the above-described embodiment, the case where the device housings of the music playback devices 1 and 30 are formed in a substantially spheroid shape has been described. However, the present invention is not limited to this, and is a rectangular parallelepiped shape or a cubic shape. Various other shapes such as a spherical shape and a polyhedron shape can be applied.

  Further, in the above-described embodiment, the housing right-side rotation unit 4 and the housing left-side rotation unit 5, the housing right-side opening / closing unit 6, and the housing left-side opening / closing unit 7 are combined into one spheroid housing 2. Although the case where the right end surface 4A and the left end surface 5A and the first and second openings 6A and 7A have substantially the same size has been described as being formed as a portion, the present invention is not limited to this. If the entire first and second openings 6A and 7A can be brought into contact with the right end surface 4A and the left end surface 5A, the right end surface and the left end surface of the case right side rotation unit and the case left side rotation unit are You may make it form in various shapes larger than the 1st and 2nd opening 6A and 7A.

  Furthermore, in the above-described embodiment, the case where the sound emitting device according to the present invention is applied to the music reproducing devices 1 and 30 described above with reference to FIGS. 1 to 8 has been described, but the present invention is not limited thereto. Various audio data such as music data output from information processing devices such as external personal computers, mobile phones, PDAs (Personal Digital Assistance), game machines, compact disc players, DVD (Digital Versatile Disc) players, and hard disk recorders In addition to various audio data such as music data output from a television receiver or the like, a speaker unit that emits sound based on the audio data from the right speaker and the left speaker is used in various other ways. The present invention can be widely applied to the sound emitting device having the configuration.

  Furthermore, in the above-described embodiment, a substantially barrel-shaped portion as a part of the spheroid-shaped casing 2 described above with reference to FIGS. 1 to 8 as the casing main body having one and the other end faces facing each other. A case where the housing central portion 3, the housing right side turning portion 4 having a substantially frustoconical portion, and the housing left side turning portion 5 having a substantially frustoconical portion are applied. However, the present invention is not limited to this, and other cases such as a case main body portion having various shapes in which the case central portion, the case right rotation portion, and the case left rotation portion are integrally formed. Various casing body parts can be widely applied.

  Furthermore, in the above-described embodiment, the first speaker is accommodated and the first opening that exposes only the front surface of the diaphragm of the first speaker is exposed. FIG. 1 to FIG. 8 as a first opening / closing portion attached so as to be openable and closable within a predetermined angle range between a position where the entire first opening abuts and a position where the first opening is separated from one end face. Although the case where the housing right side opening / closing portion 6 formed of a substantially conical portion having the first recess is applied as a part of the above-described spheroid housing 2 has been described, the present invention is not limited thereto. In addition, the first opening / closing part of various other shapes such as a triangular pyramid shape, a quadrangular pyramid shape having a first opening, and a rectangular parallelepiped can be widely applied.

  Furthermore, in the above-described embodiment, the second speaker is accommodated and the second opening that exposes only the front surface of the diaphragm of the second speaker is exposed. FIG. 1 to FIG. 8 as a second opening / closing portion attached so as to be openable and closable within a predetermined angle range between a position where the entire second opening abuts and a position where the second opening is separated from the other end face. Although the case where the housing left side opening / closing portion 7 formed of a substantially conical portion having the second concave portion as a part of the spheroid housing 2 described above is applied has been described, the present invention is not limited thereto. In addition, the second opening / closing portions having various shapes such as a triangular pyramid shape, a quadrangular pyramid shape having a second opening, and a rectangular parallelepiped can be widely applied.

  Furthermore, in the above-described embodiment, as a case central portion that is a central portion of the case main body portion, a substantially barrel-shaped portion as a part of the spheroid-shaped casing 2 described above with reference to FIGS. However, the present invention is not limited to this, and various other shapes such as a cube or a rectangular parallelepiped can be widely applied. .

  Further, in the above-described embodiment, the first casing rotation having one end surface, the first opening / closing section being attached to be openable / closable, and pivotally supported with respect to the central portion of the casing. As a part, the case where the casing right-side rotation part 4 formed of a substantially truncated cone-shaped part as a part of the spheroid-shaped casing 2 described above with reference to FIGS. 1 to 8 is described. The invention is not limited to this, and a first housing such as a cube or a rectangular parallelepiped that is pivotally supported around a predetermined axis that intersects the horizontal rotation axis L1 at a predetermined angle with respect to the central portion of the housing. As the body rotation unit, the first casing rotation unit having various other shapes can be widely applied.

  Further, in the above-described embodiment, the second casing rotation having the other end face, the second opening / closing section being attached to be openable / closable, and pivotally supported with respect to the central portion of the casing. As a part, the case where the housing left-side turning part 5 formed of a substantially truncated cone-shaped part as a part of the spheroid-shaped casing 2 described above with reference to FIGS. 1 to 8 is described. The invention is not limited to this, and a second housing such as a cube or a rectangular parallelepiped that is pivotally supported around a predetermined axis that intersects the horizontal rotation axis L1 at a predetermined angle with respect to the central portion of the housing. Other than this, the second casing rotating unit having various shapes can be widely applied, such as the body rotating unit.

  The present invention can be used for a sound emitting device such as a music reproducing device or a speaker unit.

It is a rough-line perspective view which shows one Embodiment of the external appearance structure of the music reproduction apparatus by this invention. It is a basic diagram which shows the back surface structure of a music reproduction apparatus. It is a basic diagram with which it uses for description of opening and closing of the housing | casing right side opening / closing part and the housing | casing left side opening / closing part with respect to a housing | casing right side rotation part and a housing | casing left side rotation part. It is a basic diagram with which it uses for description of the shape of a housing | casing right side opening / closing part and a housing | casing left side opening / closing part. It is a basic diagram with which it uses for description of rotation of a housing | casing right side rotation part and a housing | casing left side rotation part. It is a basic diagram with which it uses for description of the change of direction of the right speaker and left speaker by rotation of a housing | casing right side rotation part and a housing | casing left side rotation part. It is a block diagram which shows the circuit structure of a music reproduction apparatus. It is a block diagram which shows the circuit structure of the music reproduction apparatus by other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,30 ... Music reproduction apparatus, 2 ... Spheroidal housing, 3 ... Housing central part, 4 ... Housing right side rotation part, 4A ... Right end surface, 5 ... Case left side rotation Moving part, 5A: Left end face, 6: Case right side opening / closing part, 6A ... First opening, 7 ... Case left opening / closing part, 7A ... Second opening, 8, 9 ... Hinge part 10... Right speaker, 11... Left speaker, 32... Opening / closing drive unit, L 1.

Claims (4)

A pair of first and second speakers;
A housing body having one and other end faces facing each other;
A first opening that houses the first speaker and exposes only the front surface of the diaphragm of the first speaker; the one end face and the entire first opening with respect to the housing main body. And a first opening / closing part attached so as to be openable / closable within a predetermined angular range between a position where the first opening is brought into contact with and a position where the first opening is separated from the one end surface;
A second opening that accommodates the second speaker and exposes only the front surface of the diaphragm of the second speaker; the other end face of the housing main body and the entire second opening And a second opening / closing part attached to be openable and closable within a predetermined angle range between a position where the second opening is brought into contact with and a position where the second opening is separated from the other end face. apparatus. The case body is
A central portion of the casing formed of a central portion of the casing main body, and
A first casing rotating portion having the one end surface, the first opening / closing portion being attached to be openable / closable and pivotally supported with respect to the central portion of the casing;
The second opening / closing portion having the other end surface is attached to be openable / closable, and includes a second housing rotating portion pivotably supported with respect to the central portion of the housing. The sound emitting device according to claim 1. The first opening / closing part includes
The thickness based on the first opening is selected to be shorter than the diameter of the first opening,
The second opening / closing part is
The sound emitting device according to claim 1, wherein a thickness based on the second opening is selected to be shorter than a diameter of the second opening. The sound emitting device according to claim 1, further comprising: an opening / closing driving unit that opens and closes the first and second opening / closing units with respect to the housing main body unit.

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