JP5060660B1 - pillow - Google Patents

Abstract

An object of the present invention is to allow a user who is listening to the sound to sleep comfortably by making it possible to output a sound that is extremely faithful to the original sound from a relatively small speaker unit that can be built in a pillow of a normal size. I can make it.
In a pillow incorporating a speaker unit (S), a baffle plate (2) made of a thin and flexible soft rubber, and a first member having air permeability and rigidity and elasticity enough to support a human head. The first cushion body 1 and the second cushion body 3 are provided, and the frame of the speaker unit S is directly fixed to the baffle plate 2 so that the front side of the speaker unit S faces the front side of the baffle plate 2. The speaker unit S and the baffle plate 2 are disposed between the first cushion body 1 and the second cushion body 3, and both the baffle plate 2 and the speaker unit S are vibrations of the speaker unit S. It is characterized by being held in a state of being able to advance and retreat in the vibration direction of the plate.
[Selection] Figure 5

Description

  The present invention relates to a technique of a pillow incorporating a speaker unit.

  Patent Document 1 discloses a structure of a speaker in which a speaker unit is disposed in a hole portion of a baffle plate. In this structure, the speaker unit frame is flexibly engaged with the baffle plate so that the frame can vibrate freely with a stroke of about the amplitude of the cone in the vibration direction of the cone (diaphragm), that is, in the front-rear direction. The structure absorbs vibration from the unit to the baffle plate. A speaker having such a structure can be incorporated in the pillow.

  Patent Document 2 discloses a speaker system in which a gel plate is used as a baffle plate and a speaker unit is attached so as to close a hole provided in the gel plate. According to this speaker system, the gel plate can absorb improper vibration that causes turbid noise and distortion.

  Patent Document 3 discloses an intermediate support having an opening in the vicinity of the center, and elasticity that can bend downward near the center on which the user's head is placed across the opening over the intermediate support. A long plate having a pair of left and right speakers attached to the lower surface of the long plate so as to face the opening of the intermediate support, and an upper cushion overlaid on the upper surface of the long plate; The pillow with a speaker which comprises the bag which wraps these, and vibrates the said long board with the said speaker is disclosed.

Japanese Patent No. 3796134 (paragraphs 0039, 0073 to 0092, FIG. 1, FIG. 6, FIG. 7, etc.) Japanese Patent No. 3828876 (paragraphs 0007, 0008, FIG. 1, etc.) Japanese Patent No. 4104930 (Claim 1, FIG. 1, etc.)

  In Patent Document 1, a heavy and bulky resonance box can be omitted, and a sound faithful to the original sound obtained from a sound source can be reproduced (see Paragraph 0025 of Patent Document 1). The speaker unit that produces such an effect is relatively large, but such a large speaker unit can be arranged inside the pillow, and a sound faithful to the original sound can be reproduced. However, if the speaker of Patent Document 1 is placed inside the pillow in order to make the user who places the head listen to the sound from the speaker unit, the size of the pillow will be larger than the size of the normal pillow. There's a problem. As a pillow that allows the user to sleep comfortably, a pillow of a normal size that can reproduce a sound faithful to the original sound by incorporating a relatively small speaker unit is desired.

  Moreover, since the gel board of patent document 2 is heavy and expensive, the pillow incorporating the speaker unit which uses the gel board as a baffle board will become quite heavy. Therefore, instead of the gel plate, it is desired to use a member having an effect equivalent to or better than that of the gel plate for the baffle plate.

  Further, according to Patent Document 3, the back sound output from the back side of the speaker is confined in the opening of the intermediate support. Therefore, it cannot be expected that the diaphragm of the speaker will vibrate well and output a sound that is highly faithful to the original sound.

  Therefore, in the present invention, it is possible to output a sound that is extremely faithful to the original sound from a relatively small speaker unit built in a normal size pillow, so that the user who is listening to the sound can sleep comfortably. The purpose is to make it.

  In order to achieve the above-mentioned object, the present invention provides a pillow with a built-in speaker unit, a baffle plate made of a thin and flexible soft rubber, and has sufficient air permeability and rigidity and elasticity to support a human head. And a second cushion body having air permeability and rigidity and elasticity that can support a human head, and the speaker unit. The frame of the speaker unit is directly fixed to the baffle plate so that the front side of the baffle plate faces the front side of the baffle plate, the speaker unit and the baffle plate include the first cushion body, The baffle plate and the speaker unit are both disposed between the second cushion body and can move forward and backward in the vibration direction of the diaphragm of the speaker unit. Characterized in that it is held in.

  According to such a configuration, the speaker unit and the baffle plate are hardly restricted from the first cushion body and the second cushion body. Further, the frame of the speaker unit is directly fixed to a baffle plate made of a thin and soft soft rubber. For this reason, the vibration of the speaker unit is transmitted to the baffle plate via the frame, and the speaker unit and the baffle plate can vibrate freely in the vibration direction of the vibration plate of the speaker unit in a state of being hardly restrained. By vibrating the baffle plate together with the speaker unit without being restricted, even when a relatively small speaker unit is built in a normal size pillow, the sound output from the speaker unit is changed to the original sound. The sound is extremely faithful. Such a sound is a sound that does not include noise caused by illegal vibrations such as muddy sounds and distorted sounds, and is a comfortable sound for the pillow user.

  The baffle plate may have a hole corresponding to the speaker unit, and the frame of the speaker unit may be directly fixed to the baffle plate so that the speaker unit closes the hole of the baffle plate.

  According to such a configuration, the front sound output from the speaker unit is surely heard by the pillow user, and the back sound output from the speaker unit is shielded on the front side, while the baffle plate is passive. It functions as a radiator and can transmit resonance to the front side.

  Moreover, the said speaker unit is good to be fixed to the said baffle board so that it may be arrange | positioned at the front view upper side of the said baffle board.

  According to such a configuration, the user can hear the same sound regardless of the posture of the user of the pillow at bedtime.

  The volume of the sound output from the speaker unit may be reduced as time passes by an external device connected to the speaker unit and controlling the sound output from the speaker unit.

  According to such a configuration, the user who is listening to the sound output from the speaker can be put to a more comfortable sleep.

  Further, the second cushion body is a cushion body filled with a resin short tube, and connecting means for connecting the front side and the back side of the second cushion body is provided as a whole of the second cushion body. It is good to arrange | position in a grid | lattice form over.

  According to such a configuration, it is possible to prevent the thickness of the second cushion body from becoming uneven even if the user moves his / her head while using the pillow.

  According to the present invention, it is possible to output a sound very faithful to the original sound from a relatively small speaker unit that can be incorporated in a normal size pillow, so that a user who is listening to the sound can sleep comfortably. Can be used.

It is an external appearance perspective view of a pillow. It is a disassembled perspective view when the structural member of a pillow is decomposed | disassembled in the thickness direction. (A) is a perspective view when the rubber plate to which the speaker unit is attached is viewed from the front side, and (b) is a perspective view when the rubber plate to which the speaker unit is attached is viewed from the back side. It is a figure and (c) is a BB sectional view. It is a functional lineblock diagram of an acoustic system. (A) is an AA sectional view of the pillow of FIG. 1 when not in use, and (b) is an AA sectional view of the pillow of FIG. 1 when in use.

  Next, modes for carrying out the present invention (hereinafter referred to as “embodiments”) will be described with reference to FIGS. 1 to 5. For convenience of explanation, the same elements are given the same numbers, and duplicate explanations are omitted. In the present embodiment, the front side of the pillow shown in FIG. 1 may be called “front” and the back side of the pillow may be called “rear”. Further, the longitudinal direction of the pillow may be referred to as “left and right”, and the short direction of the pillow may be referred to as “up and down”. Further, in FIG. 5, illustrations of a sound source PL, an accessory device A, a plug, a cable, and the like that connect the speaker unit S and the accessory device A are omitted.

  As shown in FIG. 1, the pillow P of the present embodiment has a substantially rectangular shape when viewed from the front. For example, the lengths of the longitudinal direction, the lateral direction, and the thickness direction of the pillow P are 600 mm, 450 mm, and 80 mm, respectively, which are normal sizes. The pillow P includes a first cushion body 1, a baffle plate 2, a pair of speaker units SR (S) and SL (S), a second cushion body 3, and a pillow cover 4. The pillow cover 4 is made of a cloth that does not block the sound output from the speaker unit S, and wraps the first cushion body 1, the baffle plate 2, the pair of speaker units S, and the second cushion body 3, The external appearance of the pillow P is comprised.

(First cushion body 1)
As shown in FIG. 2, the first cushion body 1 is disposed on the most back side of the pillow P and supports the entire pillow P. The first cushion body 1 has air permeability and has rigidity and elasticity enough to support a human head, and is made of, for example, fibrous synthetic cotton. Therefore, the head support function as the pillow P of giving a good sleeping comfort to the user of the pillow P is ensured. In addition, illustration of the pillow cover 4 is abbreviate | omitted in FIG.

  Synthetic cotton used for the first cushion body 1 does not have a great damping capacity. Therefore, the 1st cushion body 1 escapes to the back side, hardly absorbing the "back sound" which is the sound output to the back side of the speaker unit S. That is, the synthetic cotton rich in breathability and elasticity allows the back sound from the speaker unit S to escape to the back side without changing the sound pressure on the back side of the speaker unit S, so that the back sound can be easily removed. can do. Even if the user places the head on the pillow P and the first cushion body 1 is somewhat crushed, the synthetic cotton has high elasticity, so the breathability of the synthetic cotton is ensured. Therefore, in a state where the user places the head on the pillow P, the first cushion body 1 allows the back sound from the speaker unit S to escape to the back side, and the back sound is excellent. When the back sound is absorbed, the sound pressure on the back side of the speaker unit S changes, and a resistance force to the diaphragm S5 (see FIG. 3C) of the speaker unit S is generated, and the movement of the diaphragm S5 Therefore, it is not appropriate to use a material having a large damping capacity for the first cushion body 1. An example of a material having a large damping capacity is urethane foam (sponge). Note that the sound output to the front side of the speaker unit S is referred to as “front sound” with respect to the “back sound”.

(Baffle plate 2)
The baffle plate 2 is a back sound shielding plate that shields propagation of back sound output from the speaker unit S to the front side. The details of the back sound shielding plate are disclosed in, for example, claim 1 of Patent Document 1, and the description thereof is omitted. Since this embodiment is an embodiment related to use as a pillow in which the speaker unit S and the baffle plate 2 are arranged, the distance from the speaker unit S to the user's ear is short. The baffle plate 2 can shield the back sound even if it is about the size described later. For this reason, the mutual interference between the front sound and the back sound from the speaker unit S is sufficiently suppressed, and the front sound from the speaker unit S is not weakened. Note that details of the mutual interference between the back sound and the front sound are disclosed in, for example, paragraphs 0041 and 0042 of Patent Document 1, and a description thereof will be omitted.

  The baffle plate 2 is made of thin and soft soft rubber, and is made of synthetic rubber such as inexpensive chloroprene rubber (rubber hardness 45), natural rubber, or the like. The baffle plate 2 has a rectangular shape in front view and extends in the horizontal direction. For example, the length of the baffle plate 2 in the longitudinal direction, the lateral direction, and the thickness direction are 400 mm, 300 mm, and 2 mm, respectively. The baffle plate 2 is disposed on the front side of the first cushion body 1 and is disposed at the approximate center of the pillow P. The baffle plate 2 is formed with a pair of holes 21 (see FIG. 2) for fixing the speaker unit S to a predetermined position with respect to the baffle plate 2.

  As will be described later, the baffle plate 2 is directly fixed to the flange portion S1a (see FIG. 3) of the frame S1, so that when the speaker unit S is activated, the speaker unit S in the vibration direction of the diaphragm S5 of the speaker unit. It can vibrate freely along with it. In order to optimize such a reciprocating vibration, the thickness of the baffle plate 2 is set to 1 mm to 5 mm, and the rubber hardness is 20 to 60 (based on JIS standard. Standard number: JIS. K 6253).

  Further, since the baffle plate 2 is soft and thin and is directly fixed to the flange portion S1a of the frame S1, the baffle plate 2 easily resonates with the back sound from the speaker unit S and can function as a passive radiator. Note that details of the passive radiator are disclosed in, for example, paragraph 0016 of Patent Document 1, and the description thereof is omitted.

(Speaker unit S)
The speaker unit S is, for example, a pair of small full-range speakers having a substantially cylindrical outer shape having an axis in the same direction as the thickness direction, and the diameter of the cylinder is about 25 mm. By using the small speaker unit S, the speaker units S are arranged on both the left and right sides of the user's head of the pillow P without increasing the size of the pillow P incorporating the speaker unit S more than necessary. Can do.

  The internal structure of the speaker unit S is as shown in FIG. 3C. The speaker unit S includes a concave diaphragm S5 (cone), a frame S1 (see FIG. 3) for supporting the diaphragm S5, and a permanent magnet S6. Well-known components such as a voice coil S7 for vibrating the diaphragm S5 freely and an edge S8 for suspending the diaphragm S5 are provided. Details of the well-known constituent members of the speaker unit are disclosed in, for example, Patent Document 2 (see paragraphs 0021 to 0023, FIG. 1), and thus description thereof is omitted.

  As shown in FIG. 1, the speaker unit S is disposed on the upper side in front of the baffle plate 2 in the short direction. By arranging the speaker unit S in this way, the sound (stereo sound) output from the speaker unit S can be used regardless of whether the user who put his head on the pillow P turns his head to the left or right side. It sounds the same for the person. That is, the user can hear the same sound regardless of the sleeping posture of the user of the pillow P.

  As shown in FIG. 3A, the frame S1 of the speaker unit S forms a substantially cylindrical outer shape. The frame S1 of the speaker unit S includes a flange portion S1a formed so as to extend outward in the circumferential direction from the approximate center of the outer wall of the cylinder (see FIG. 3A). The diaphragm S5 forms the front of the speaker unit S. In FIG. 3A, the speaker unit cover C (described later) is not shown.

  A screw hole S11 through which the screw S2 (see FIG. 3B) passes is formed in the flange portion S1a. The baffle plate 2 is formed with a screw hole 22 through which the screw S2 passes. When attaching the speaker unit S to the baffle plate 2, the speaker unit S is disposed inside the hole 21 of the baffle plate 2, and the flange portion S <b> 1 a is locked to the baffle plate 2 from the back side. At this time, the screw hole S11 of the frame S1 is opposed to the screw hole 22 of the baffle plate 2, and the screw S2 is passed through the screw hole S11 and the screw hole 22. The flange S1a of the frame S1 of the speaker unit S is directly fixed to the outer peripheral portion of the hole 21 of the baffle plate 2 by screwing the screw S2 and the nut S3 that are passed through on the back side of the flange S1a (see FIG. 3 (b)). Therefore, since the flange portion S1a of the frame S1 of the speaker unit S is directly fixed to the baffle plate 2 so that the speaker unit S closes the hole 21 of the baffle plate 2, the front sound output from the speaker unit S The back sound output from the speaker unit S is shielded on the front side, while the baffle plate 2 functions as a passive radiator to transmit the resonance sound to the front side. . In addition, illustration of screw S2 is abbreviate | omitted in FIG.3 (c).

  Here, the term “directly fixed” to the baffle plate 2 by the flange portion S1a of the frame S1 of the speaker unit S means that a member that inhibits vibration of the frame S1 of the speaker unit S from being transmitted to the baffle plate 2 is It means to fix without interposing between S1 and the baffle plate 2. Therefore, a vibration absorbing member (see paragraph 0040 of Patent Document 1) is not interposed between the frame S1 of the speaker unit S and the baffle plate 2. However, even if any member is interposed, this is not limited as long as the baffle plate 2 and the speaker unit S can freely move back and forth in the vibration direction of the diaphragm S5 of the speaker unit S.

  As shown in FIG. 3, the front side of the speaker unit S fixed to the baffle plate 2 is open toward the front side of the baffle plate 2 and is not covered with the baffle plate 2. Therefore, the speaker unit S can output a front sound without being blocked by the baffle plate 2, and the front sound can be reliably heard by the user of the pillow.

  A pair of terminals S4 and S4 having a positive polarity and a negative polarity are arranged at the rear end of the speaker unit S (see FIG. 3B). For example, one end of the cable is connected to the terminals S4 and S4 using a plurality of plugs, and the other end of the cable is connected to an external sound source. Thereby, the sound signal received from the sound source can be transmitted directly or indirectly to the speaker unit S, and the sound can be output from the speaker unit S.

(Speaker unit cover C)
As shown in FIG. 2, the speaker unit cover C (protective member) is disposed on the front side of the baffle plate 2 and protects the speaker unit S on the front side of the baffle plate 2. The speaker unit cover C has a substantially cylindrical shape and surrounds the front side of the speaker unit S from the outside. Therefore, no matter how the user moves his / her head while using the pillow P, the speaker unit S does not receive pressure due to the weight of the user's head of the pillow P, and the diaphragm of the speaker unit S Damage to S5 (see FIG. 3) can be prevented. The front end of the speaker unit cover C is open to the extent that it does not block the sound output from the speaker unit S.

  The substantially cylindrical speaker unit cover C is formed with a hole C1 that passes through the inside of the peripheral wall portion in the axial direction, and the hole C1 of the speaker unit cover C is opposed to the screw hole 22 of the baffle plate 2. Good. As a result, the screw S2 penetrates not only the screw hole S11 and the screw hole 22 but also the hole C1 of the speaker unit cover C, whereby the speaker unit cover C is fixed to the outside on the front side of the speaker unit S.

(Second cushion body 3)
As shown in FIG. 2, the second cushion body 3 is a cushion body in which a large number of short resin pipes 32 (see FIG. 5) are filled in a bag 31 that is a highly breathable mesh. The resin short tube 32 has, for example, a tube shape with an outer diameter of 6 mm, a wall thickness of 0.2 mm, and a length of 8 mm, and is made of a polymer material such as polyethylene. Therefore, the second cushion body 3 has air permeability, has rigidity and elasticity that can support a human head, and gives a good sleeping comfort to the user of the pillow P. The head support function as the pillow P is secured.

  The damping capacity of the resin short pipe 32 used in the second cushion body 3 is relatively small. Therefore, the front sound from the speaker unit S is propagated to the front side with almost no sound absorption. That is, the resin short tube 32 rich in air permeability and elasticity propagates the front sound from the speaker unit S to the front side without changing the sound pressure on the front side of the speaker unit S. Can be improved. Even if the user places the head on the pillow P and the second cushion body 3 is somewhat crushed, the resin short tube 32 has high elasticity, so the air permeability of the resin short tube 32 is ensured. ing. Therefore, in a state where the user places the head on the pillow P, the second cushion body 3 propagates the front sound from the speaker unit S to the front side, and the front sound is excellent.

The resin short tube 32 is preferably soft enough to be crushed relatively easily when picked with a finger, for example. By making it soft, the sound that reaches the user of the pillow P through the resin short tube 32 becomes a soft and spreading sound, rather than making it hard.
The bag 31 prevents the resin short tube 32 from jumping out of the bag 31 and entering the speaker unit S. For example, the bag 31 may be made of resin or cloth.

  The second cushion body 3 is disposed on the front side of the baffle plate 2 and is supported by the first cushion body 1. In consideration of the sound quality of the sound output from the speaker unit S, the thickness of the second cushion body 3 is preferably uniform or substantially uniform. For this purpose, for example, tag pins (not shown, connecting means) used for price tagging of cloth products are driven in with a tag gun in a lattice shape over the entire bag 31 of the second cushion body 3 extending in the horizontal direction, It is preferable to connect the cloth on the front side and the cloth on the back side of the bag 31 at the place where the tag pins are arranged. In this way, the resin short pipe 32 that is spread uniformly or substantially uniformly is divided, and the thickness of the second cushion body 3 is the same regardless of how the user moves the head while using the pillow. Unevenness can be prevented.

  For example, when the thickness of the second cushion body 3 is about 40 mm, the cloth on the front side and the cloth on the back side of the bag 31 are connected by a large number of tag pins arranged in a lattice shape so that the pitch is about 50 mm. . The tag pin has a length of 15 mm and a thickness of 0.4 mm. Thereby, a partition having a partition shape having a length of about 50 mm is formed, and the thickness of the second cushion body 3 at a position where the tag pin is located can be set to about 15 mm, and can be made thinner than the peripheral portion thereof. This partition regulates the vertical and horizontal movements of the resin short pipe 32, and even if the thickness of the second cushion body 3 becomes uneven, it is squeezed by hand to correct the thickness. It becomes possible. In addition, in order to adjust the rigidity and elasticity of the second cushion body 3, the pitch is set within a range of 30 mm to 60 mm, or the length of the tag pin is set within a range of 10 mm to 30 mm. Also good.

For the cushion body filled with the resin short tube, it is usually only possible to put cloth partitions vertically or horizontally. Therefore, the thickness of the cushion body frequently becomes non-uniform in the direction where the partition is not inserted. In addition, if a cloth partition is inserted in the up-down direction and the left-right direction with respect to the cushion body that fills the resin short tube, the resin short tube cannot be filled in the space partitioned by the partition.

(Acoustic system)
Next, an acoustic system using the speaker unit S will be described mainly with reference to FIG. In this acoustic system, a speaker unit SR (S) serving as a right R channel, a speaker unit SL (S) serving as a left L channel, an attached device A (external device), and a sound source PL are connected with, for example, a plug or a cable. And electrically connected. Note that the accessory device A is connected to the terminal S4 of the speaker unit S using, for example, a plug or a cable.

  The sound source PL is a stereo sound source, for example, and is a CD player using an optical disc, a cassette tape player using a magnetic tape, a DVD player, or the like. The sound signal output from the sound source PL is input to the attachment device A.

  The accessory device A is a device that converts the sound signal output from the sound source PL and controls the volume and quality of the sound output from the speaker unit S. The attachment device A can be composed of one or a plurality of devices. The accessory device A includes components such as an amplification unit A1, a volume adjustment unit A2, and a timer A3.

The amplification unit A1 amplifies the sound signal received from the sound source PL. The amplification unit A1 can be mounted as a main amplifier or a preamplifier, for example.
The volume adjustment unit A2 adjusts the volume of the sound output from the speaker unit S. The volume adjustment unit A2 can be implemented as a variable resistor that controls the resistance value related to the output from the speaker unit S.
The timer A3 is a time measuring unit that measures time, and can measure, for example, an elapsed time from the time when music is played by the sound source PL.

  The volume of the sound output from the speaker unit S within a predetermined time can be adjusted stepwise by the volume adjuster A2 and the timer A3. For example, the sound reproduced by the user operating the sound source PL can be adjusted so that the volume is gradually reduced from the sound reproduction start time, and the sound is muted after a predetermined time has elapsed. Specifically, the resistance value of the variable resistor is set so that playback is performed at the volume set by the user for 30 minutes from the sound playback start time, and playback is performed at a lower volume by one level for the next 30 minutes. The resistance value of the variable resistor is set as follows, and the resistance value of the variable resistor is set so that the next 30 minutes are played back at a lower volume, and the adjustment is continued until the sound is muted. is there. The number of volume adjustment stages and the sound playback time at each stage can be changed as appropriate. By such adjustment, a sleep effect for the user of the pillow P is realized.

≪Example of use≫
Next, the usage example of the pillow P is demonstrated.

  The baffle plate 2 and the speaker unit S arranged between the first cushion body 1 and the second cushion body 3 are the first cushion body 1 and the second cushion having air permeability and elasticity. The body 3 receives almost no restraint. Further, the baffle plate 2 and the speaker unit S are not restrained by other than the first cushion body 1 and the second cushion body 3. The baffle plate 2 is made of a soft and thin material and is directly fixed to the flange portion S1a of the frame S1 of the speaker unit S.

  Therefore, similarly to the frame of the speaker unit S (see 0039 of Patent Document 1), the baffle plate 2 also vibrates freely in the same direction as the vibration direction of the diaphragm S5 of the speaker unit S in a state of being hardly restrained. can do. That is, the vibration of the diaphragm S5 of the speaker unit S is transmitted to the baffle plate 2 via the frame S1, so that the speaker unit S and the baffle plate 2 are hardly restrained, and the diaphragm S5 of the speaker unit S Can vibrate freely in the direction of vibration. By vibrating the baffle plate 2 together with the speaker unit S without being restricted, the sound output from the speaker unit S can be obtained even when the relatively small speaker unit S is built in a normal size pillow. However, the sound is very faithful to the original sound. Such a sound is a sound that does not include noise caused by improper vibrations such as turbidity sound and distortion sound, and thus is a comfortable sound for the user of the pillow P.

  In addition, when the inventor is in a state where the soft and thin baffle plate 2 and the speaker unit S are not restrained as described above, the sound quality of the sound output from the speaker unit S exceeds a predetermined sound quality. It was confirmed that.

  Note that the speaker unit of Patent Document 1 uses a vibration absorbing member that flexibly regulates the forward and backward movement of the frame in order to obtain reproduced sound that is highly faithful to the original sound (see Paragraph 0040 of Patent Document 1). However, since the vibration from the speaker unit to the baffle plate is absorbed by the vibration absorbing member, the baffle plate itself does not vibrate freely in the vibration direction of the vibration plate of the speaker unit.

  Moreover, it is thought that the long plate used for the pillow with a speaker of patent document 3 has quite big rigidity in order to support the head of the user of a pillow. The long plate having such a large rigidity does not vibrate freely in the vibration direction of the diaphragm of the speaker.

  The above is the main features of the speaker unit S and the baffle plate 2 incorporated in the pillow P of the present embodiment, but the following features also exist.

  When the pillow P shown in FIG. 5B is used, the first cushion body 1 is mainly deformed due to the weight of the user's head when the pillow P shown in FIG. 5A is not used. Even if there is such a deformation, the baffle plate 2 and the speaker unit S arranged between the first cushion body 1 and the second cushion body 3 are not restrained by other than them. Therefore, the sound quality of the sound output from the speaker unit S is almost the same between when the pillow P is not used and when it is used. In addition, the sound output from the speaker unit S reaching the user's ear part of the pillow P is drawn with a white arrow and a solid arrow in FIGS. 5 (a) and 5 (b). Due to the action of the short resin tube 32 of the second cushion body 3, a soft and expansive sound can be heard from the entire front side of the second cushion body 3.

  The baffle plate 2 made of thin and soft soft rubber is lighter and cheaper than a gel plate (see Patent Document 2). Further, the speaker unit S is also small and light. Therefore, the pillow P including the baffle plate 2 and the speaker unit S is considerably reduced in weight and is easy to use for the user of the pillow P.

  In addition, since the pair of speaker units S are fixed to the single baffle plate 2, the sense of solidarity of the sound output from each of the speaker units S is enhanced, and the sound quality is improved. Further, in stereo sound output, when the baffle plates are divided into two and one speaker unit is fixed to each baffle plate, and the divided baffle plates are separated and placed inside the pillow P, the speakers are used. Sound quality is good, although the solidarity of the sound output from each unit tends to be weak.

≪Summary≫
According to this embodiment, the speaker unit and the baffle plate are hardly restrained by the first cushion body and the second cushion body. Further, the flange portion of the frame of the speaker unit is directly fixed to a baffle plate made of thin and soft soft rubber. For this reason, the vibration of the speaker unit is transmitted to the baffle plate via the frame, and the speaker unit and the baffle plate can vibrate freely in the vibration direction of the vibration plate of the speaker unit in a state of being hardly restrained. By vibrating the baffle plate together with the speaker unit without being restricted, even when a relatively small speaker unit is built in a normal size pillow, the sound output from the speaker unit is changed to the original sound. The sound is extremely faithful. Such a sound is a sound that does not include noise caused by illegal vibrations such as muddy sounds and distorted sounds, and is a comfortable sound for the pillow user.
As a result, a relatively small speaker unit that can be built into a normal-size pillow can output a sound that is extremely faithful to the original sound, thereby allowing the user who is listening to the sound to sleep comfortably. Can do.

In addition, the front sound output from the speaker unit is surely heard by the pillow user, while the back sound output from the speaker unit is shielded on the front side, while the baffle plate functions as a passive radiator. The resonance can be transmitted to the front side.
In addition, regardless of the pillow user's sleeping posture, the user can hear the same.
In addition, the user who is listening to the sound output from the speaker unit can be put to a more comfortable sleep.
Further, it is possible to prevent the thickness of the second cushion body from becoming non-uniform regardless of how the user moves the head while using the pillow.

≪Others≫
The above embodiment is suitable for carrying out the present invention, but the form of implementation is not limited to this. Therefore, various modifications can be made to the implementation form without departing from the gist of the present invention.

  For example, in the present embodiment, the pillow P has been described as having a substantially rectangular shape in front view. However, for example, the present invention can be applied even to a pillow that exhibits a curved shape in accordance with the shape of the shoulder, neck, and head of the user of the pillow P.

  In the present embodiment, the speaker unit S has been described as a pair of speaker units that output stereo sound. However, the present invention can be applied even when a single speaker unit that outputs monaural sound is used. Since the second cushion body 3 uses the soft resin short tube 32 (may be hard), the sound output from the speaker unit spreads even if a single speaker unit is used, and the pillow P is used. The person can hear the sound.

  In the present embodiment, the baffle plate 2 has been described as having a thin rectangular shape. However, for example, the shape may be circular, elliptical, or polygonal.

  In the present embodiment, the first cushion body 1 has been described as a cushion body made of fibrous synthetic cotton. However, the material of the first cushion body 1 is a breathable material such as a synthetic resin short tube, synthetic resin spherical beads (eg, Colma (registered trademark) beads), natural cotton, buckwheat husk, glass wool, feathers, or palm mat. And a material rich in elasticity. The first cushion body 1 using such a material transmits the back sound from the speaker unit S to the back side without changing the sound pressure on the back side of the speaker unit S, as in the case of using synthetic cotton. Since it escapes, it is possible to improve the back sound. Moreover, the 1st cushion body 1 may have the bag for wrapping these materials as needed, and does not need to have it. This bag may be made of cloth or resin.

  When the material of the first cushion body 1 is a synthetic resin short tube or a synthetic resin spherical bead, the synthetic resin short tube or the synthetic resin spherical bead is soft enough to be crushed relatively easily when picked with a finger. It is good to be. As a result, the sound output from the speaker unit S can be soft and spread.

  In the present embodiment, the second cushion body 3 has been described as a cushion body in which a mesh bag 31 is filled with a resin short tube 32. However, the material of the second cushion 3 is a material rich in breathability and elasticity such as synthetic cotton, synthetic resin spherical beads (eg, colma beads), natural cotton, buckwheat husk, glass wool, feathers or palm mat. It may be. The second cushion body 3 using such a material can be used to transmit the front sound from the speaker unit S to the front without changing the sound pressure on the front side of the speaker unit S, similarly to the case where the resin short tube 32 is used. Since it propagates to the side, it is possible to improve the omission of front sound. Moreover, the 2nd cushion body 3 may have the bag for wrapping these materials, and does not need to have it. This bag may be made of cloth or resin. Further, the material of the second cushion body 3 may be the same as or different from the material of the first cushion body 1.

  When the material of the second cushion body 3 is a synthetic resin short tube or a synthetic resin spherical bead, the synthetic resin short tube or the synthetic resin spherical bead is soft enough to be crushed relatively easily when picked with a finger. It is good to be. As a result, the sound output from the speaker unit S can be soft and spread. Furthermore, according to the results of experiments conducted by the inventor, the sound spread of the soft synthetic resin spherical perforated beads was larger than that of the soft synthetic resin short tube.

  Moreover, in this embodiment, the 2nd cushion body 3 was made uniform or substantially uniform using the tag pin as a connection means. In addition, the connecting means may be a binding wire that binds a plurality of cables and the like. A large number of binding wires are arranged in a lattice pattern over the entire bag 31 of the second cushion body 3, and the cloth on the front side and the cloth on the back side of the bag 31 are connected at the arranged position. The thickness of the second cushion body 3 is made thinner than the peripheral portion of the part. As a result, a partition that restricts the vertical and horizontal movements of the short resin pipe 32 is formed, and the thickness of the second cushion body 3 is not affected no matter how the user moves the head while using the pillow. Uniformity can be prevented.

  Moreover, in this embodiment, the pillow P can be raised or lowered to fit the user's body shape by increasing or decreasing the amount of synthetic cotton used as the material of the first cushion body 1. it can. Even if the amount of synthetic cotton used is changed, the degree to which the back sound output from the speaker unit S is absorbed does not change much, and the sound quality of the sound heard by the user is hardly affected.

  Further, in the present embodiment, when the flange portion S1a of the frame S1 of the speaker unit S is directly fixed to the baffle plate 2, the speaker unit S is configured to close the hole 21 of the baffle plate 2, and the front from the speaker unit S is taken. The sound is surely heard by the user of the pillow, and the back sound is shielded on the front side, while the baffle plate 2 functions as a passive radiator to transmit the resonance sound to the front side. However, for example, as shown in FIG. 5 of Patent Document 3, the same effect as the above can be obtained even in a configuration in which a plurality of small holes facing the speaker unit fixed to the back side of the baffle plate are provided in the baffle plate. .

  In this embodiment, the pillow cover 4 that wraps the first cushion body 1, the baffle plate 2, the pair of speaker units S, and the second cushion body 3 is used as the pillow P. However, for example, instead of using the pillow cover 4, as shown in FIG. 4 of Patent Document 3, the periphery of the cushion may be wrapped with a string (see Paragraph 0030 of Patent Document 3).

  In the present embodiment, the volume adjustment unit A2 of the attachment device A is a variable resistor, and the volume of the sound output from the speaker unit S within a predetermined time is adjusted stepwise. However, the accessory device A includes hardware such as an input unit, an output unit, a storage unit, and a control unit, and the volume adjustment unit A2 and the timer A3 are mounted as software. The time measured by the timer A3 and the volume adjustment unit A2 The storage unit of the accessory device A may store a program representing the correspondence relationship with the resistance value to be controlled. Thereby, the volume adjustment unit A2 can be realized as an electronic volume, and the sound reproduced from the sound source PL can be adjusted to be gradually reduced. By such adjustment, a sleep effect for the user of the pillow P is realized.

  The pillow of the present invention is not limited to the generally rectangular pillow in front view described in the present embodiment, but is generally square pillow in front view, a substantially square or substantially rectangular cushion for backrest used for a sofa or a bed, a cushion, etc. It is obvious that a cushion body on which a human head or shoulder is placed during sleep is included.

A technique in which technical matters described in this embodiment are appropriately combined can also be realized.
In addition, specific configurations such as shapes, materials, and arrangements of various members necessary for the present invention can be appropriately changed without departing from the spirit of the present invention.

P Pillow SR (S), SL (S) Speaker unit S1 Frame S1a Flange S5 Diaphragm C Speaker unit cover (protective member)
A Attached device (external device)
PL sound source 1 first cushion body 2 baffle plate 3 second cushion body 4 pillow cover 31 bag 32 resin short tube

Claims (5)

In pillows with built-in speaker units,
A baffle plate made of thin and flexible soft rubber,
A first cushion body that is breathable and has sufficient rigidity and elasticity to support a human head;
A second cushion body having air permeability and rigidity and elasticity enough to support a human head,
The frame of the speaker unit is directly fixed to the baffle plate so that the front side of the speaker unit faces the front side of the baffle plate,
The speaker unit and the baffle plate are disposed between the first cushion body and the second cushion body,
Both the baffle plate and the speaker unit are held in a state in which the baffle plate can advance and retreat in the vibration direction of the diaphragm of the speaker unit. The baffle plate has a hole corresponding to the speaker unit,
The pillow according to claim 1, wherein a frame of the speaker unit is directly fixed to the baffle plate so that the speaker unit closes a hole of the baffle plate. The pillow according to claim 1 or 2, wherein the speaker unit is fixed to the baffle plate so as to be disposed on the upper side of the baffle plate when viewed from the front. The volume of the sound output from the speaker unit is reduced as time passes by an external device connected to the speaker unit and controlling the sound output from the speaker unit. Item 4. The pillow according to any one of items 3 to 3. The second cushion body is a cushion body filled with a resin short tube,
The connection means for connecting the front side and the back side of the second cushion body is arranged in a lattice shape over the entire second cushion body. The pillow according to item 1.

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