JP7708048B2 - Nap Device - Google Patents

Description

The present invention relates to a nap device.

Patent document 1 discloses a structure in which a seat back of a vehicle seat is provided with a biometric sensor capable of detecting biometric information.

JP 2016-136989 A

Incidentally, acquiring brainwave data during sleep is useful because it allows the user to understand their sleep state. In particular, if brainwave data could be acquired during a nap, a high-quality nap could be achieved in a short time. However, when applying the technology described in Patent Document 1, it is not possible to align the position of the user's head with the position of the sensor. Also, devices that are worn by the user to acquire brainwaves may disrupt sleep.

The present invention takes the above into consideration and aims to provide a nap device that can measure brain waves during a nap without disturbing sleep.

The nap device of claim 1 comprises a bed body capable of supporting a user's body, a restraint section provided on the bed body for restraining the user's head or neck, and an electroencephalogram acquisition section provided at a position corresponding to the user's head when the user's head or neck is restrained by the restraint section and for acquiring electroencephalograms , the restraint sections being provided separately from the bed body in a pair on the left and right, each protruding from the bed body and configured to be movable, and the electroencephalogram acquisition section being provided between the pair of left and right restraint sections and attached to a connecting section connecting the pair of left and right restraint sections .

In the nap device according to claim 1, an electroencephalogram acquisition unit is provided at a position corresponding to the user's head on a bed body capable of supporting the user's body. This makes it possible to acquire the user's electroencephalogram while he or she is napping.

The bed body is also provided with a restraining section that restrains the user's head or neck. This makes it possible to prevent the position of the user's head from moving significantly while napping. Note that "restraint" here is not limited to fixing the user's head or neck so that it does not move. It is a concept that broadly includes a structure that guides the head or neck, such as a recess that has a shape that corresponds to the head or neck.

Furthermore , since the restraint unit is configured to be movable, the head or neck of the user can be restrained regardless of the height or build of the user. Also, since the brainwave acquisition unit moves in conjunction with the restraint unit, even if the user moves the restraint unit, the brainwave acquisition unit can be aligned with the position of the user's head, and the user's brainwaves can be acquired.

The nap device of claim 2 is the same as claim 1, in that the brain wave acquisition unit includes a first sensor provided at a position corresponding to the back of the user's head when the user's head or neck is restrained by the restraint unit, and a second sensor provided at a position corresponding to the user's frontal lobe.

In the nap device according to the second aspect of the present invention, brain waves are acquired by two sensors, the first sensor and the second sensor, so that the accuracy of the acquired brain wave data is improved.

The nap device of claim 3 is based on claim 1 or 2 and further comprises a head-side frame covering the sides and upper part of the part of the bed body that supports the user's head, a sound collection unit provided on the outer surface of the head-side frame for collecting sounds around the bed body, and a sound output unit provided on the inner surface of the head-side frame and capable of outputting sound toward the user, and generates an inverse phase sound of the sound collected by the sound collection unit and outputs the inverse phase sound from the sound output unit.

In the nap device according to claim 3 , sounds around the bed body are collected by a sound collection section provided on the outer surface of the head-side frame. Also, sounds in the opposite phase to the sounds collected by the sound collection section are output toward the user from a sound output section provided on the inner surface of the head-side frame. This makes it possible to cancel sounds around the user, allowing the user to nap without being concerned about the sounds around them.

The nap device according to claim 4 is based on claim 3 , and the sound collection section is provided in multiple units on the outer surface of the head-side frame, and the sound output section is provided on the inner surface at the upper end of the head-side frame.

In the nap device according to the fourth aspect of the present invention, the plurality of sound collecting units can collect sounds from a plurality of directions relative to the bed body. This allows the sound output unit to output inverse noise of sounds generated in a plurality of directions.

As described above, the nap device of the present invention can measure brain waves during a nap without disturbing the sleep.

FIG. 2 is a perspective view showing the nap device according to the embodiment, with the curtain in a closed state. FIG. 2 is a perspective view showing the nap device according to the embodiment, with the curtain open. FIG. 2 is a schematic side view of the bed body in the embodiment, showing the bed body in a chair shape. FIG. 2 is a schematic side view of the bed body in the embodiment, showing the bed body in a bed shape. FIG. 13 is a perspective view showing a nap device according to a modified example, with the curtain open. FIG. 11 is a schematic side view of the bed body in the modified example, showing the bed body in a bed shape.

The nap device 10 according to the embodiment will be described with reference to the drawings. Note that the arrows FR, UP, and RH shown in each drawing indicate the front direction, the upper direction, and the right side of the seat width direction of the bed body 12 constituting the nap device 10, respectively. The front direction of the bed body 12 is the direction in which a user of the bed body 12 faces forward in a seated position. The right side of the seat width direction is the right direction as seen from a seated position on the bed body. In the following description, when the directions of front-rear, up-down, and left-right are simply used, they refer to front-rear in the front-rear direction of the seat, up-down in the up-down direction of the seat, and left-right in the seat width direction, unless otherwise specified.

As shown in Figures 1 and 2, the nap device 10 according to this embodiment is mainly composed of a bed body 12, a restraint section 52 provided on the bed body 12, a rotation mechanism 22, a head-side frame 14, a foot-side frame 16, a curtain 18, and an EEG sensor 54 as an EEG acquisition section.

(Bed body 12)
The bed body 12 is configured to be capable of supporting the body of the user P in a seated position and in a supine position, and is configured to include a seat portion 12A, an upper body support portion 12B, and a lower leg support portion 12C.

As shown in Figures 3 and 4, the seat 12A of the bed body 12 is configured to be able to support the buttocks and thighs of the user P from below, and is slightly inclined so that the rear of the seat 12A is positioned lower than the front when viewed from the side.

The seat 12A is also configured to include a seat frame 26 that forms the framework of the seat 12A, and a cushioning material that covers the seat frame 26 and supports the user. The seat 12A is also provided with a heater (not shown) for warming the buttocks and thighs of the user P.

The upper body support part 12B is rotatably connected to the rear end (one end) of the seat part 12A. The upper body support part 12B is inclined so that the rear end side is positioned higher than the front end part connected to the seat part 12A, and the upper body of the user P is supported from below by the upper body support part 12B.

The upper body support section 12B is configured to include an upper frame 28 that forms the skeleton of the upper body support section 12B, and a cushioning material (not shown) that covers the upper frame 28 and supports the user. In addition, the upper body support section 12B is provided with a heater (not shown) for warming the upper body of the user P.

On the other hand, the crus support part 12C is rotatably connected to the front end part (other end part) of the seat part 12A. The crus support part 12C is inclined so that its front end part is positioned lower than its rear end part connected to the seat part 12A, and the crus support part 12C supports the user's lower leg from below.

The lower leg support section 12C is configured to include a lower frame 30 that forms the skeleton of the lower leg support section 12C, and a cushioning material (not shown) that covers the lower frame 30 and supports the user. The lower leg support section 12C is also provided with a heater (not shown) for warming the lower leg of the user P. The seat section 12A, the upper body support section 12B, and the lower leg support section 12C are integrally covered with a skin. For this reason, the bed body 12 appears as an integral sheet in which the seat section 12A, the upper body support section 12B, and the lower leg support section 12C are continuous, but the seat section 12A, the upper body support section 12B, and the lower leg support section 12C do not have to be an integral sheet in appearance and structure. For example, the seat section 12A, the upper body support section 12B, and the lower leg support section 12C may each be independently covered with a skin.

Here, the bed body 12 is configured to be capable of being transformed between a chair shape and a bed shape by the rotation mechanism 22. Figure 3 shows the bed body 12 in the chair shape, and Figure 4 shows the bed body 12 in the bed shape.

(Rotation mechanism 22)
3, the rotation mechanism 22 in this embodiment includes, as an example, an upper motor 32 for rotating the upper body support part 12B relative to the seat part 12A, an upper cylinder 34, and an upper link 36. The rotation mechanism 22 also includes a lower motor 38 for rotating the lower leg support part 12C relative to the seat part 12A, and a lower cylinder 40.

The upper motor 32 is composed of a motor such as a stepping motor or a servo motor attached to the underside of the seat 12A, and is driven by power supplied from a power source (not shown) to generate a rotational force. The upper cylinder 34 is composed of a case 34A and a rod 34B, and is configured such that the rotational motion of the upper motor 32 is converted into linear motion, causing the rod 34B to extend or contract relative to the case 34A.

An upper link 36 is connected to the tip of the rod 34B. The upper link 36 is formed in an elongated shape, with one end of the upper link 36 rotatably connected to the tip of the rod 34B, and the other end of the upper link 36 rotatably connected to the upper frame 28 via the upper bracket 44. In addition, a long hole 36A that penetrates in the seat width direction is formed between the one end and the other end of the upper link 36, and a shaft portion 37 that extends in the seat width direction is inserted into this long hole 36A.

When the upper motor 32 is driven from the chair shape shown in FIG. 3 to move the rod 34B of the upper cylinder 34 toward the case 34A, the rod 34B transitions to a contracted state as shown in FIG. 4. As the rod 34B contracts, the upper link 36 moves toward the front of the seat along the shaft 37 while rotating clockwise around the shaft 37, so that the upper link 36 falls into a bed shape. Note that in this embodiment, even when the bed body 12 transitions to the bed shape, the seat 12A and the upper body support 12B do not become flat, and the upper body support 12B is slightly inclined upward relative to the seat 12A. This makes it difficult for the user P to fall into a deep sleep, and allows him or her to wake up after a short nap.

A lower motor 38 is disposed in front of the upper motor 32. The lower motor 38 is composed of a motor such as a stepping motor or a servo motor attached to the underside of the seat 12A, and is driven by power supplied from a power source (not shown) to generate rotational force. The lower cylinder 40 is composed of a case 40A and a rod 40B, and is configured such that the rod 40B extends or retracts relative to the case 40A by converting the rotational motion of the lower motor 38 into linear motion.

The tip of the rod 40B is rotatably connected to a lower bracket 42 attached to the underside of the lower frame 30. A long hole 42A is formed in the lower bracket 42, and the tip of the rod 40B is configured to be able to move along this long hole 42A.

When the lower motor 38 is driven to extend the rod 40B of the lower cylinder 40 from the chair shape shown in FIG. 3, the tip of the rod 34B moves along the long hole 42A, and the lower frame 30 moves in a direction away from the seat frame 26. In this state, the seat 12A and the lower leg support 12C are at an angle to each other in a bed shape. In this way, the bed body 12 is configured to be able to transform into any shape between the chair shape shown in FIG. 3 and the bed shape shown in FIG. 4.

(Foot side frame 16)
1 and 2, the foot side frame 16 is disposed at the end of the bed body 12 on the side of the lower leg support 12C, and is formed in a generally cylindrical shape with both the front and rear sides of the seat open. The foot side frame 16 is generally elliptical and long in the up-down direction when viewed from the front-to-rear direction, and the lower end of the foot side frame 16 is fixed to a connecting plate 17. The connecting plate 17 is formed in a generally rectangular plate shape with the longitudinal direction of the seat as the longitudinal direction, and the head side frame 14 is fixed to the rear end of the connecting plate 17, and the foot side frame 16 is fixed to the front end of the connecting plate 17.

The front opening of the foot frame 16 is closed by a stretchable front cloth material 25. A front rail 16A is provided at the rear opening of the foot frame 16, and the front end of a curtain 18 (described later) is attached to the front rail 16A.

(Head side frame 14)
The head-side frame 14 is disposed at the end of the bed body 12 on the side of the upper body support portion 12B, and is formed in a generally cylindrical shape with both the front and rear sides of the seat open. The head-side frame 14 is formed in a generally elliptical shape that is long in the up-down direction when viewed from the front-rear direction, and the lower end of the head-side frame 14 is fixed to the connecting plate 17.

In addition, a support base 20 that houses part of the rotation mechanism 22 is provided inside the head side frame 14, and the bed body 12 is supported on this support base 20.

As shown in FIG. 2, the rear opening in the head-side frame 14 is blocked by the rear cloth material 24. The rear cloth material 24 is made of a stretchable cloth material and is attached to the periphery of the head-side frame 14. In addition, as an example, the rear cloth material 24 in this embodiment is made of a cloth material that reflects a portion of the light, so that the inside of the sleeping device 10 is difficult to see from the outside, but the situation outside the sleeping device 10 can be seen by a user on the inside.

A rear rail 14A is provided at the front opening of the head-side frame 14. The rear rail 14A is provided along the edge of the upper opening of the head-side frame 14, and the rear end of the curtain 18, which will be described later, is attached to this rear rail 14A.

As shown in FIG. 4, the head-side frame 14 is inclined so that its upper portion is positioned further back (opposite the foot-side frame 16) than its lower portion. The head-side frame 14 is also designed to cover the sides and upper portion of the portion that supports the head H of the user P supported by the bed-shaped bed body 12.

As shown in FIG. 2, the outer surface of the head-side frame 14 is provided with a plurality of sound collection sections 51 for collecting sounds around the bed body 12. Specifically, a sound collection section 51 is provided on each of the right and left side surfaces of the head-side frame 14, and these sound collection sections 51 include microphones.

As shown in Figures 3 and 4, a sound output unit 56 capable of outputting sound toward the user P is provided on the inner surface of the head-side frame 14. The sound output unit 56 is provided on the inner surface at the upper end of the head-side frame 14, and is configured to include a speaker. In addition, the sound output unit 56 is configured to be able to output a sound that is in the opposite phase to the sound collected by the sound collection unit 51.

(Curtain 18)
As shown in Fig. 1, the curtain 18 is a cloth-like member stretched between the head-side frame 14 and the foot-side frame 16. The front end of the curtain 18 is attached to the front rail 16A, and the rear end of the curtain 18 is attached to the rear rail 14A. By moving the curtain 18 along the front rail 16A and the rear rail 14A, the curtain 18 is moved from a closed position that covers the upper part of the bed body 12 to an open position that opens the upper part of the bed body 12. Fig. 1 shows a state in which the curtain 18 has been moved to the closed position, and Fig. 2 shows a state in which the curtain 18 has been moved to the open position.

The curtain 18 is made of a material that allows some of the outside light to pass through, so even when the curtain 18 is in the closed position and covers the user P from above, some of the outside light can pass through the curtain 18 and enter the inside of the sleeping device 10, ensuring the user P's visibility.

As shown in Figures 3 and 4, the head-side frame 14 is longer in the vertical direction than the foot-side frame 16, so that in the closed position, the curtain 18 extends diagonally downward from the head-side frame 14 toward the foot-side frame 16.

(Restraint part 52)
2, the upper body support section 12B of the bed body 12 is provided with restraining sections 52 for restraining the head H or neck N of the user P. In this embodiment, a pair of restraining sections 52 are provided on the left and right, each of which protrudes from the upper body support section 12B. In addition, a gap that is equal to or larger than the width of the head H of the user P is provided between the left and right restraining sections 52.

The restraint section 52 in this embodiment is configured to be movable in the up-down direction along the upper body support section 12B. For example, a pair of left and right rail members may be disposed inside the upper body support section 12B, and the restraint section 52 may be configured to be movable along the rail members. The left and right restraint sections 52 are connected by a connecting section (not shown) inside the upper body support section 12B, and the left and right restraint sections 52 move together.

The restraint unit 52 may be configured to be manually movable, or may be equipped with an electric movement mechanism. For example, the restraint unit 52 may be configured to be electrically moved to any position using the power of a stepping motor or the like.

(brain wave sensor 54)
An EEG sensor 54 for acquiring brain waves is provided at a position corresponding to the head H of the user P. In this embodiment, the EEG sensor 54 is provided between the left and right restraining parts 52. The EEG sensor 54 is also attached to a connecting part (not shown) that connects the left and right restraining parts 52. For this reason, when the restraining parts 52 are moved, the EEG sensor 54 moves in conjunction with them. In other words, regardless of the position of the restraining parts 52, the positional relationship between the restraining parts 52 and the EEG sensor 54 does not change.

In this embodiment, the brainwave acquisition unit is configured with one brainwave sensor 54, but this is not limited to the above. For example, a configuration may be adopted in which the brainwave sensor 54 is the first sensor and a second sensor is provided in addition to the brainwave sensor 54. In this case, the brainwave sensor 54, which is the first sensor, may acquire brainwaves from the back of the head of the user P, while the second sensor may acquire brainwaves from the frontal lobe of the user P. That is, the second sensor may be provided at a position corresponding to the frontal lobe of the user P. For example, the head-side frame 14 may be provided with a bracket to which the second sensor can be attached, and the bracket may be extended toward the head of the user P, so that the second sensor can be mounted at a position close to the frontal lobe of the user P. In addition, a moving mechanism for moving the second sensor may be provided, and the second sensor may be moved close to the frontal lobe of the user by the moving mechanism after transitioning from the chair shape to the bed shape. In a configuration using two sensors, the first sensor and the second sensor, the accuracy of the acquired brainwave data is improved.

As shown in Figs. 1 and 2, the nap device 10 is provided with a controller 50 as a control unit. The controller 50 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), storage, and a communication interface. The controller 50 is also electrically connected to the upper motor 32, the lower motor 38, the sound collection unit 51, the sound output unit 56, and the brain wave sensor 54.

The upper motor 32 and the lower motor 38 are stepping motors or servo motors that constitute the rotation mechanism 22, and are driven based on a signal from the controller 50. The sound collection unit 51 collects sounds around the bed body 12 based on a signal from the controller 50, and the collected sound data is transmitted to a noise canceling unit (not shown) or the like.

The controller 50 generates an antiphase sound using a noise canceling unit (not shown) and outputs the antiphase sound from the sound output unit 56. The controller 50 also stores the brainwave data acquired by the brainwave sensor 54 in a storage device or an external server.

(effect)
Next, the operation of this embodiment will be described.

In the nap device 10 of this embodiment, an EEG sensor 54 is provided at a position corresponding to the head H of the user P on the bed body 12 capable of supporting the body of the user P. This makes it possible to acquire the brain waves of the user P while he or she is napping.

The bed body 12 is also provided with a restraining section 52 that restrains the head H or neck N of the user P. This makes it possible to prevent the position of the user P's head H from moving significantly while the user is napping. In particular, in this embodiment, the restraining section 52 is configured to be movable, so that the head H of the user P can be restrained regardless of the height or build of the user P.

Furthermore, in this embodiment, the EEG sensor 54 moves in conjunction with the restraint unit 52, so even if the user P moves the restraint unit 52, the EEG sensor 54 can be aligned with the position of the user P's head H, and the user P's brain waves can be obtained.

Furthermore, in this embodiment, sounds around the bed body 12 are collected by the sound collection unit 51 provided on the outer surface of the head-side frame 14, and sounds in the opposite phase to the sounds collected by the sound collection unit 51 are output toward the user P from the sound output unit 56 provided on the inner surface of the head-side frame 14. This makes it possible to cancel sounds around the user P, allowing the user P to take a nap without worrying about the sounds around him/her.

In addition, the multiple sound collection units 51 can collect sounds from multiple directions relative to the bed body 12. This allows inversion noise of sounds generated in multiple directions to be output from the sound output unit 56 to the user P, improving the accuracy of noise canceling.

In this embodiment, the head H of the user P is restrained by a pair of restraining parts 52 provided on the left and right, but this is not limited to the above. For example, the modified configurations shown in Figures 5 and 6 may be adopted.

(Modification)
As shown in FIGS. 5 and 6, this modified example has the same configuration as the above embodiment except for the restraining portion 62.

The upper body support section 12B of the bed body 12 is provided with a restraint section 62 that restrains the neck N of the user P. In this embodiment, the restraint section 62 is provided in the center of the upper body support section 12B in the width direction, and is formed in a substantially rectangular parallelepiped shape with the width direction as the longitudinal direction.

A recess 62A is formed on the upper surface of the restraint section 62. The recess 62A is formed in the center of the width of the restraint section 62, and is recessed toward the bed body 12. The recess 62A corresponds to the shape of the neck N of the user P, and is configured so that the neck N is supported by the recess 62A.

An EEG sensor 54 for acquiring brain waves is provided closer to the tip of the upper body support section 12B than the restraint section 62. The EEG sensor 54 is provided at a position corresponding to the head H of the user P when the neck of the user P is supported by the restraint section 62.

The restraint section 62 is configured to be movable in the vertical direction along the upper body support section 12B, and the brain wave sensor 54 is configured to move in conjunction with the restraint section 62. Therefore, regardless of the position of the restraint section 62, the positional relationship between the restraint section 62 and the brain wave sensor 54 does not change.

With the nap device 10 of this modified example, the head H of the user P is not restrained, so the field of vision is not obstructed by the restraining part. In addition, the user P does not feel a sense of pressure from the restraining part, so brainwave data can be acquired while ensuring convenience for the user P.

The above describes the nap device 10 according to the embodiment and modified examples, but it goes without saying that the present invention can be embodied in various forms without departing from the spirit of the invention. For example, the shape and configuration of the restraint section are not limited to the structures of the above embodiment and modified examples, and other structures are also possible.

In addition, in the above embodiment, the EEG sensor 54 is configured to move in conjunction with the restraint section 52, but this is not limited to the above. For example, the EEG sensor 54 may be fixed to the upper body support section 12B. Even in this case, as long as the height of the user P is within a predetermined range, brain waves can be obtained. Also, a nap device may be provided for each height of the user P.

In addition, in the above embodiment, the sound collection unit 51 and the sound output unit 56 are provided on the head-side frame 14, but this is not limited to this. For example, if headphones or the like are provided connected to the nap device 10 and the headphones are equipped with a noise canceling function, the same effect as the above embodiment can be achieved. However, from the viewpoint of being able to cancel surrounding sounds without wearing a device, it is preferable to provide the sound collection unit 51 and the sound output unit 56 on the head-side frame 14.

Furthermore, in the above embodiment, the rotation mechanism 22 is configured to include an upper motor 32 for rotating the upper body support part 12B relative to the seat part 12A, and a lower motor 38 for rotating the lower leg support part 12C relative to the seat part 12A, but is not limited to this. For example, the bed body 12 may be configured to transition from the chair shape to the bed shape using another mechanism.

The bed body 12, head-side frame 14, foot-side frame 16, and curtain 18 are not limited to the shapes of the above embodiment, and may be formed in other shapes as long as the effects of the present invention are obtained. For example, the curtain may be configured to open and close automatically, or may be equipped with a metallic or resin curtain.

10: Nap device 12: Bed body 14: Head side frame 51: Sound collection unit 52: Restraint unit 54: Brain wave sensor (brain wave acquisition unit)
56 Sound output section H Head N Neck P User

Claims (4)

A bed body capable of supporting a user's body;
A restraint section provided on the bed body for restraining the head or neck of a user;
an electroencephalogram acquiring unit that is provided at a position corresponding to the head of the user in a state in which the head or neck of the user is restrained by the restraint unit and acquires electroencephalograms;
having
The restraining portion is provided separately from the bed body, and is configured to protrude from the bed body and to be movable.
The electroencephalogram acquiring unit is provided between the pair of left and right restraint units and is attached to a connecting unit that connects the pair of left and right restraint units.
Nap device. The nap device of claim 1, wherein the brain wave acquisition unit includes a first sensor provided at a position corresponding to the back of the user's head when the user's head or neck is restrained by the restraint unit, and a second sensor provided at a position corresponding to the user's frontal lobe . A head side frame that covers the sides and the top of the portion of the bed body that supports the head of the user;
A sound collecting section is provided on the outer surface of the head side frame to collect sounds around the bed body;
a sound output unit provided on an inner surface of the head side frame and capable of outputting sound toward a user;
Further equipped with
3. The nap device according to claim 1, wherein a sound in an inverse phase to the sound collected by the sound collection unit is generated, and the inverse phase sound is output from the sound output unit. The sound collection unit is provided on an outer surface of the head-side frame in a plurality of parts,
The nap device according to claim 3 , wherein the sound output section is provided on an inner surface at an upper end of the head side frame.