JP2018187021A - Motor-driven furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide motor-driven furniture capable of improving usability.SOLUTION: Motor-driven furniture includes a movable part that moves in response to an operation received by a first operation receiving part, and a storage part for storing a first movable part state of the movable part when a state of a user detected by a detection part is a first user state. The movable part turns into the stored first movable part state when a second operation receiving part receives an operation.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to electric furniture.

  For example, there is electric furniture (for example, an electric bed or an electric chair) that can change the height and the angle of the backrest. These electric furnitures are operated by a control device such as a hand switch (for example, a remote controller: remote controller). In such a control device, improvement in usability is desired.

Japanese Patent Laid-Open No. 11-235363

  Embodiments of the present invention provide electric furniture that can improve ease of use.

  According to the embodiment, the electric furniture includes a movable unit that moves according to an operation received by the first operation receiving unit, and the movable unit when the state of the user detected by the detection unit is the first user state. And a storage unit that stores the first movable unit state. The movable portion is in the stored first movable portion state when the second operation accepting portion accepts an operation.

  The embodiment of the present invention can provide electric furniture that can improve ease of use.

FIG. 1A to FIG. 1C are schematic perspective views illustrating electric furniture according to the first embodiment. FIG. 2A to FIG. 2E are schematic views illustrating control of the electric furniture according to the first embodiment. FIG. 3 is a block diagram illustrating the electric furniture according to the first embodiment. FIG. 4 is a flowchart illustrating the operation of the electric furniture according to the first embodiment. FIG. 5A to FIG. 5C are schematic views illustrating the state of the electric furniture according to the first embodiment. FIG. 6 is a schematic perspective view illustrating the electric furniture according to the second embodiment. FIG. 7A and FIG. 7B are schematic views illustrating the electric furniture according to the second embodiment. FIG. 8A to FIG. 8D are schematic views illustrating another electric furniture according to the second embodiment. FIG. 9 is a schematic perspective view illustrating another electric furniture according to the third embodiment.

Embodiments of the present invention will be described below with reference to the drawings.
The drawings are schematic or conceptual, and the relationship between the thickness and width of each part, the size ratio between the parts, and the like are not necessarily the same as actual ones. Even in the case of representing the same part, the dimensions and ratios may be represented differently depending on the drawings.
In the present specification and drawings, the same elements as those described above with reference to the previous drawings are denoted by the same reference numerals, and detailed description thereof is omitted as appropriate.

(First embodiment)
FIG. 1A to FIG. 1C are schematic perspective views illustrating electric furniture according to the first embodiment.
As shown in FIG. 1A, the electric furniture 310 according to the first embodiment includes a movable part 70 and a storage part 48. In this example, the electric furniture 310 is provided with a control device 160. The control device 160 can control the movable part 70 of the electric furniture 310. The control device 160 is, for example, a remote controller (remote controller) for the electric furniture 310. The control device 160 is a hand switch, for example. The control device 160 may have various functions such as a lighting on / off function, a nurse or caregiver calling function, or a power on / off function.

  The electric furniture 310 is used in, for example, a hospital, a nursing facility, or a home.

  In this example, the electric furniture 310 is an electric bed. The electric bed has a movable part 70. The movable unit 70 includes, for example, a back bottom 70a, a knee bottom 70b, a leg bottom 70c, and a height changing unit 70d (for example, a bed elevator). The angles of the back bottom 70a, the knee bottom 70b, and the leg bottom 70c can be changed. The angle of the user's back can be changed by the operation of the back bottom 70a. The angle of the knee can be changed by changing the angle between the knee bottom 70b and the leg bottom 70c. These angles may change in conjunction. The height changing unit 70d can change the distance (height) between the floor surface and the bed surface, for example. The height changing unit 70d may be able to change independently the height on the head side of the bed and the height on the foot side of the bed. Thereby, the whole inclination of the bed surface can be changed. For these movable parts 70, for example, an actuator or the like is used. By the operation of the movable unit 70, at least one of “back raising”, “knee raising”, “height adjustment”, “inclination”, and the like is possible.

  The control device 160 is electrically connected to the movable unit 70 described above. A control circuit may be provided between the control device 160 and the movable unit 70. In this manner, a case where another circuit is provided in between is also included in the state of being electrically connected.

  As shown in FIG. 1A, the control device 160 is connected to the electric furniture 310 by the cable 15. The control device 160 may be connected to the electric furniture 310 by wireless communication. The control device 160 includes the operation unit 10.

  As shown in FIGS. 1B and 1C, the control device 160 (operation unit 10) has a first surface 10a and a second surface 10b. The second surface 10b is a surface opposite to the first surface 10a. The first surface 10a is, for example, a surface on the front side. The second surface 10b is, for example, the back surface. The first surface 10a is, for example, an operation surface.

  The control device 160 includes a first operation receiving unit 20 (for example, a plurality of operation buttons), a second operation receiving unit 25 (for example, a memory button), and a switch 50.

  The first operation receiving unit 20 (for example, a plurality of operation buttons) and the second operation receiving unit 25 (for example, a memory button) are provided on the first surface 10a. For example, the switch 50 is provided in a portion other than the first surface 10a. In this example, the switch 50 is provided on the second surface 10b. The switch 50 may be provided on the side surface of the casing of the control device 160.

  For the first operation receiving unit 20 and the second operation receiving unit 25, for example, switches (for example, buttons) having mechanical contacts are used. In addition to the first operation receiving unit 20 and the second operation receiving unit 25, any input device such as an electrostatic type or an optical type (for example, a touch switch) may be used.

  The first operation receiving unit 20 (for example, a plurality of operation buttons) and the second operation receiving unit 25 (for example, a memory button) can receive a control operation for controlling the operation of the movable unit 70 of the electric furniture 310.

  The movable unit 70 is controlled based on the control operation received by the first operation receiving unit 20 and the second operation receiving unit 25. The movable unit 70 is operated by operating the first operation receiving unit 20. When the second operation receiving unit 25 is operated, the movable unit 70 is stored. The stored state is stored in the storage unit 48.

  In this example, the first operation accepting unit 20 (for example, a plurality of operation buttons) is related to an “up” button 21a related to “interlocking”, a down button 21b related to “interlocking”, an up button 22a related to “head”, and a “head”. This includes a descending button 22b, an ascending button 23a for "foot", a descending button 23b for "foot", an up / down button 24a for "height", and a descending button 24b for "height".

  For example, when the ascending button 22a related to “head” is pressed, the angle of the back bottom 70a increases. For example, when the lowering button 22b related to “head” is pressed, the angle of the back bottom 70a is reduced. For example, when the ascending button 23a regarding the “foot” is pressed, the angles of the knee bottom 70b and the leg bottom 70c increase. For example, when the lowering button 23b related to “foot” is pressed, the angles of the knee bottom 70b and the leg bottom 70c are reduced. These angles are, for example, angles from a horizontal plane. For example, when the ascending button 24a regarding “height” is pressed, the bed surface becomes higher. For example, when the lowering button 24b related to “height” is pressed, the bed surface is lowered. For example, when the ascending button 21a related to “interlocking” is pressed, “head” and “foot” change in conjunction with each other. For example, when the downward button 21b related to “interlocking” is pressed, “head” and “foot” change in conjunction with each other. These changes are performed by the operation of the movable unit 70. For example, the above operation is performed during a period during which the first operation reception unit 20 continues to receive an operation (for example, a period during which the operation button is kept pressed). Thereby, a safe operation is obtained.

  In this example, a plurality of buttons (a button 25a relating to the first memory position, a button 25b relating to the second memory position, etc.) are provided as the second operation accepting unit 25. The number of the plurality of buttons serving as the second operation receiving unit 25 may be three or more.

  When the button 25a is pressed, the first memory position is formed. When the button 25b is pressed, the second memory position is formed. The first memory position corresponds to one state of a combination of the respective states of the back bottom 70a, the knee bottom 70b, the leg bottom 70c, and the height changing unit 70d. The second memory position corresponds to another state of a combination of respective states of the back bottom 70a, the knee bottom 70b, the leg bottom 70c, and the height changing unit 70d.

  A desired posture can be formed by the second operation receiving unit 25 (button 25a and button 25b). This desired posture is stored in the storage unit 48. Furthermore, the order of the movement of the movable part 70 up to a desired posture may be stored. The movable part 70 moves according to the stored order.

  The control of the movable unit 70 by the second operation receiving unit 25 (for example, a memory button) is simpler than the control of the movable unit 70 by the first operation receiving unit 20 (for example, a plurality of operation buttons). The second operation reception unit 25 (for example, a memory button) improves usability.

  The second operation receiving unit 25 (for example, a memory button) is suitable for being operated by a user of the electric furniture 310, for example. Furthermore, the second operation reception unit 25 may be operated by a caregiver (such as a nurse) of the user of the electric furniture 310.

  On the other hand, at least some of the plurality of first operation receiving units 20 (for example, a plurality of operation buttons) can individually control each of the plurality of movable units 70. Thereby, a desired state can be finely controlled. Therefore, the plurality of first operation accepting units 20 are suitable for being operated by a caregiver (such as a nurse).

  By providing the second operation receiving unit 25 (for example, a memory button), it is possible to prompt the user of the electric furniture 310 (for example, an electric bed) to move the movable unit 70 more actively. By providing the second operation receiving unit 25 in addition to the first operation receiving unit 20, for example, both the user and the caregiver of the user can use the device more easily.

  As will be described later, the state of the movable unit 70 is automatically stored in the storage unit 48. In the embodiment, the state of the movable unit 70 may be stored manually. For example, the switch 50 is used when the state of the movable unit 70 is manually stored.

  For example, the control device 160 may be provided with an operation mode and a storage mode. These modes may be switched by operating the switch 50. For example, the movable unit 70 is operated by operating the first operation receiving unit 20 and the second operation receiving unit 25 in the operation mode. By operating the switch 50, it is possible to shift to the storage mode. By operating the first operation receiving unit 20 in this storage mode, the movable unit 70 becomes a desired state. For example, in this state, by pressing the second operation receiving unit 25 (button 25a or button 25b), the state of the movable unit 70 at that time is stored in the storage unit 48. Pressing the switch 50 again returns to the operation mode. By operating the second operation receiving unit 20 in the operation mode, the stored state of the movable unit 70 is formed. Thus, in the embodiment, the state of the movable unit 70 may be stored using the switch 50.

  The switch 50 may be used for arbitrary control in addition to the mode switching as described above. As the switch 50, for example, a hardware switch or a switch controlled by software can be used.

  As the storage unit 48, for example, any storage device such as a semiconductor storage device, a magnetic storage device, or an optical storage device can be used. The storage unit 48 may be provided in a place different from the place where the electric furniture 310 is provided. For example, a storage device provided in a server that can communicate with the electric furniture 310 (including the control device 160) may be used as the storage unit 48.

  The storage unit 48 is connected to the control device 160 via, for example, the control unit 42 (for example, a computer). The control unit 42 may be provided in the control device 160. It may be provided separately from the control device 160.

  In the embodiment, for example, the state of the user of the electric furniture 310 is detected by a detection unit described later. The detection unit may be provided in the electric furniture 310 or may be provided separately from the electric furniture 310. Then, it is determined (estimated) whether or not the detected state of the user is a predetermined state. The predetermined state is, for example, getting up, end sitting position (for example, getting ready for getting out of bed), getting out of bed, falling asleep, sleeping, or awakening (however, lying on the bed 70). When it is determined (estimated) that the state of the user is a predetermined state, the state of the movable unit 70 at that time is stored in the storage unit 48. For example, the operation of storing the state of the movable unit 70 is automatically performed based on the detection result of the detection unit, not manually.

  When the second operation receiving unit 25 (for example, a memory button) receives an operation (for example, when the memory button is pressed), the movable unit 70 is in the stored state. For example, when the user's state is a rising state, the state of the movable unit 70 suitable for the rising state is stored in the storage unit 48. By operating the second operation receiving unit 25, the state of the movable unit 70 stored in the storage unit 48 is formed.

  For example, a method in which a user or a caregiver of the user operates the control device 160 to store a desired state is conceivable. In this case, the storing operation is manually performed by the user or the caregiver.

  On the other hand, in the embodiment, the state of the user is detected by the detection unit, and the state of the movable unit 70 corresponding to the state is stored without depending on a human operation. Thereby, the memory operation performed manually by the user or the caregiver can be omitted. It becomes easier to use.

  Since the actual state of the movable part 70 according to the user's state is stored, the state desired by the user can be stored with higher accuracy. As already described, in the embodiment, in addition to automatic storage, manual storage may be performed in the storage mode.

  An example of detection of the state of the user by the detection unit, determination of whether the detected state is a predetermined state (estimation), and storage of the state of the movable unit 70 according to the state of the user will be described later. To do.

  As shown in FIG. 1B, a display area 28 may be provided on the first surface 10a. The display area 28 can display, for example, information (such as the bottom angle and height) regarding the movable part 70 of the electric furniture 310. The display area 28 may display information regarding functions or operation states of the first operation receiving unit 20 (a plurality of operation buttons) and the second operation receiving unit 25.

  Hereinafter, an example of control of the movable unit 70 by the first operation receiving unit 20 (for example, an operation button) will be described.

  FIG. 2A to FIG. 2E are schematic views illustrating control of the electric furniture according to the first embodiment. As shown in FIG. 2A, when the button 22a or the button 22b related to the “head” is operated, the angle of the back bottom 70a is changed, and the “back raising operation” or the “back lowering operation” is performed. .

  As shown in FIG. 2 (b), when the button 23a or the button 23b relating to the "foot" is operated, the angles of the knee bottom 70b and the leg bottom 70c change, and the "knee raising operation" or "knee lowering operation" Is performed.

  As shown in FIG. 2C, when the button 24a and the button 24b relating to “height” are operated, the movement of the height changing unit 70d is controlled. Thereby, height adjustment is performed. That is, the height H1 of the bed surface is changed.

  As shown in FIG. 2D, when the button 21a and the button 21b relating to “interlocking” are operated, the angles of the back bottom 70a, the knee bottom 70b, and the leg bottom 70c change in conjunction with each other. The height H1 may change in conjunction.

  As shown in FIG. 2E, a head bottom 70h may be further provided. The head angle can be changed by the operation of the head bottom 70h.

  On the other hand, when the second operation receiving unit 25 receives an operation (for example, when the button 25a or the button 25b is operated), a first memory position (first posture) is formed. This first memory position is one combination of the respective states of the back bottom 70a, the knee bottom 70b, the leg bottom 70c, and the height changing portion 70d. For example, when the second operation receiving unit 25 receives an operation, the back bottom 70a, the knee bottom 70b, the leg bottom 70c, and the height changing unit 70d may move according to the stored order. The head bottom 70h may be further controlled by operating the second operation receiving unit 25 (button 25a or button 25b). Also in this case, the order of movement of the head bottom 70h may be stored.

  As shown in FIGS. 2A to 2E, the electric furniture 310 is provided with a drive unit 72 (for example, an actuator). By the operation of the driving unit 72, the movable unit 70 moves.

  In this example, the drive unit 72 includes a load sensor. The state of the user of the electric furniture 310 can be detected by the load applied to the load sensor (drive unit 72). For example, the user is based on the load applied to the portion corresponding to the upper half of the electric furniture 310 (for example, the back bottom 70a) and the load applied to the portion corresponding to the lower half (for example, the knee bottom 70b and the leg bottom 70c). Can be estimated to be states such as getting up, sitting on the edge, getting out of bed, falling asleep, sleeping, or awakening.

  This example corresponds to the detection unit 60 being provided in the drive unit 72 that drives the movable unit 70.

FIG. 3 is a block diagram illustrating the electric furniture according to the first embodiment.
As shown in FIG. 3, the control device 160 is provided with the first operation receiving unit 20 and the second operation receiving unit 25. The first operation reception unit 20 and the second operation reception unit 25 are connected to the control unit 42. The storage unit 48 and the drive unit 72 are connected to the control unit 42. The movable part 70 is driven by the drive part 72. As already described, when the drive unit 72 (for example, an actuator) includes a load sensor, at least a part of the drive unit 72 is regarded as the detection unit 60. As will be described later, the detection unit 60 may be provided separately from the drive unit 72.

  For example, the user of the electric furniture 310 or the caregiver operates the first operation receiving unit 20. A signal corresponding to the operation received by the first operation receiving unit 20 is supplied to the driving unit 72 via the control unit 42. The drive unit 72 that has received the signal drives the movable unit 70 to move the movable unit 70.

  On the other hand, for example, the state of the user is detected by the detection unit 60 (the drive unit 72 in this example). A signal corresponding to the state of the user detected by the detection unit 60 is supplied to the control unit 42. It is judged (estimated) by the control unit 42 whether or not the detected state of the user is a predetermined state. For example, if it is determined that the state of the user detected by the detection unit 60 is a predetermined state (for example, getting out of bed), the state of the movable unit 70 at that time (or immediately before) is stored in the storage unit. 48 is stored.

  For example, when the user wants to be in a predetermined state (for example, getting out of bed), the second operation receiving unit 25 (for example, a memory button) is pressed. When a plurality of second operation reception units 25 are provided, one of them is associated with, for example, “getting out of bed”. When the user presses the second operation receiving unit 25, a signal received by the second operation receiving unit 25 is supplied to the control unit 42. Based on the signal, the control unit 42 controls the driving unit 72 so as to form the state of one movable unit 70 stored in the storage unit 48. By the drive of the drive unit 72, the movable unit 70 is in a state corresponding to a predetermined state (for example, getting out of bed) of the user.

  The block diagram illustrated in FIG. 3 illustrates functional blocks. Multiple functions may be implemented in a single circuit. For example, at least a part of the function of the control unit 42 may be implemented by the detection unit 60.

  Hereinafter, an example of detecting the state of the user, determining whether the detected state is a predetermined state (estimating), and storing the state of the movable unit 70 in accordance with the state of the user will be described. The detection of the state of the user is performed by the detection unit 60. For example, the control unit 42 determines (estimates) whether the detected state is a predetermined state. At least a part of the determination (estimation) as to whether or not the detected state is a predetermined state may be performed by at least a part of the detection unit 60 and the storage unit 48.

FIG. 4 is a flowchart illustrating the operation of the electric furniture according to the first embodiment.
As shown in FIG. 4, the first operation receiving unit 20 and the second operation receiving unit 25 receive the operation (step S110). Step S110 corresponds to, for example, an operation mode.

  For example, when the first operation receiving unit 20 is operated by a user or a caregiver of the electric furniture 310, the movable unit 70 is in a state corresponding to the control operation. As a result, the electric furniture 310 is in a desired state. On the other hand, when the second operation receiving unit 25 is operated, the state of the movable unit 70 stored in the storage unit 48 is formed. The storage of the state of the movable unit 70 in the storage unit 48 may be performed in the above-described storage mode, or may be automatically performed as described later.

  The state of the user is detected by the detection unit 60 (for example, an actuator with a load sensor that is the drive unit 72). Then, it is determined whether the detection result is in a specific state (step S120).

  When the electric furniture 310 is an electric bed, this specific state is one of, for example, getting up, sitting on the edge, getting out of bed, falling asleep, sleeping, and awakening. For example, it can be determined (estimated) from the detection result by the detection unit 60 that the user is in any state such as getting up, sitting on the edge, getting out of bed, falling asleep, sleeping, and awakening.

  For example, end sitting or getting out of bed is determined based on a change in weight (amount of decrease). For example, from the difference between the load at the portion corresponding to the upper half of the electric bed and the load at the portion corresponding to the lower half of the bed, it can be estimated that it is “getting up”. When the partial load on the side of the electric bed is locally large, it is estimated that the seat is in the end sitting position. If the load is small in any place of the electric bed, it is estimated that the person is getting out of bed. When a relatively similar load is applied to a plurality of load sensors, it can be estimated that the patient is falling asleep or sleeping. As will be described later, various configurations can be used as the detection unit 60, and various states in the user can be estimated thereby.

  As described above, the state of the user may be determined (estimated) by being classified into a plurality of states. The number of state classifications is, for example, n (n is an integer of 2 or more). For example, it is determined (estimated) whether or not the state of the user detected by the detection unit 60 is the first to nth user state. Each of the first to n-th user states is, for example, any one of getting up, sitting on the edge, getting out of bed, falling asleep, sleeping and awakening.

  In step S120, when the detection result of the user state by the detection unit 60 is not a specific user state (first to nth user state), the process returns to step S110.

  In step S120, when the detection result of the user state by the detection unit 60 is a specific user state (any one of the first to nth user states), the corresponding movable unit state (first to first) n movable portion state) is stored in the storage unit 48 (step S130).

  For example, when the state of the user detected by the detection unit 60 is the first user state, the state of the movable unit 70 (first movable unit state) is stored in the storage unit 48. For example, when the state of the user detected by the detection unit 60 is the nth user state, the state of the movable unit 70 (the nth movable unit state) is stored in the storage unit 48.

  For example, when it is detected that the user is in a rising state (for example, the first user state), the state of the movable unit 70 at that time (first movable unit state) is stored in the storage unit 48. For example, when it is detected that the user is in the end sitting position (for example, the second user state), the state of the movable unit 70 (second movable unit state) at that time is stored in the storage unit 48. . For example, when the user is detected to be out of bed (for example, the third user state), the state of the movable unit 70 (third movable unit state) at that time is stored in the storage unit 48. For example, when it is detected that the user is in a sleep state (for example, the fourth user state), the state of the movable unit 70 (the fourth movable unit state) at that time is stored in the storage unit 48.

  For example, when the user's condition is rising, a predetermined angle suitable for rising is stored for the back bottom 70a. For example, when the state of the user is getting out of bed, a predetermined height suitable for getting out of the bed is stored for the height changing unit 70d. For example, when the user's state is falling asleep, for example, the height change unit 70d stores a safe low level even if the user falls from the bed surface. When the user's state is the end sitting position, for example, a predetermined height suitable for rising is stored for the height changing unit 70d. The states of the plurality of movable parts 70 may be stored as one set.

  Thus, in step S130, when the user state detected by the detection unit 60 is the first user state (the nth user state), the storage unit 48 is in the first movable portion state of the movable portion 70. (N-th movable part state) is stored. The movable part 70 can form the stored first movable part state (nth movable part state) when the second operation accepting part 25 accepts the operation. For example, when the second operation receiving unit 25 receives an operation, the movable unit 70 enters the stored first movable unit state (nth movable unit state).

  When the movable part 70 includes a plurality of parts (for example, the back bottom 70a, the knee bottom 70b, the leg bottom 70c, the height changing part 70d, etc.), the first movable part state (the nth movable part state) is a plurality of parts. It may include at least one of the states.

  In the embodiment, when one user state is detected a plurality of times, the stored data of the movable portion state corresponding to the user state may be updated. Hereinafter, an example of data update will be described.

  For example, the difference between the newly stored first movable part state (nth movable part state) and the previously stored first movable part state (nth movable part state) is compared with a threshold value. (Step S140).

  If this difference is greater than the threshold value, the process returns to step S110. If the difference is less than or equal to the threshold value, the first movable part state (nth movable part state) stored in the storage unit 48 is updated as described later (step S150). Then, the process returns to step S110. Hereinafter, some examples of data update will be described.

  For example, the detection unit 60 detects that the state of the user is the first user state at the first time. And the detection part 60 detects that a user's state is the 1st user state at 2nd time. That is, the same first user state is detected a plurality of times. At this time, when the difference between the state of the movable unit 70 at the first time and the state of the movable unit 70 at the second time is equal to or smaller than the threshold value, the storage unit 48 moves the movable unit at the first time. One of the state of 70 and the state of the movable part 70 at the second time is stored as the first movable part state.

  For example, when the same user state is detected a plurality of times, the state of the movable unit 70 that is detected later may be stored as the movable unit state. For example, the second time is later than the first time. At this time, when the difference between the state of the movable unit 70 at the first time and the state of the movable unit 70 at the second time is less than or equal to the threshold value, the storage unit 48 moves the movable unit at the second time. You may memorize | store 70 states as a 1st movable part state.

  Alternatively, a state (for example, an average state) based on the state of the movable unit 70 at the first time and the state of the movable unit 70 at the second time may be set as the first movable unit state.

  For example, the storage unit 48 stores the state of the movable unit 70 as the first data when the state of the user detected by the detection unit 60 is the first user state at the first time (step S130). Corresponding). The detection unit 60 detects that the state of the user detected by the detection unit 60 is the first user state at a second time after the first time. The storage unit 48 stores the state of the movable unit 70 as second data when the user state detected by the detection unit 60 is the same as the first user state at the second time (another step). Corresponding to S130). At this time, when the difference between the first data and the second data related to the state of the movable unit 70 at the second time is equal to or less than the threshold value, the storage unit 48 stores the first data and the second data. You may memorize | store the 3rd data based on as a 1st movable part state. The third data is, for example, the average (for example, arithmetic average) of the first data and the second data. The third data is, for example, between the first data and the second data.

  Each of the first data and the second data may be weighted. For example, the third data is ½ of the sum of the product of the first data and the first coefficient and the product of the second data and the second coefficient. For example, when the first coefficient is 1 and the second coefficient is 1, the third data is an arithmetic average of the first data and the second data. For example, new data is prioritized by making the second coefficient larger than the first coefficient.

  For example, the detection unit 60 may detect that the state of the user is the first user state (the nth user state) a plurality of times. At this time, the storage unit 48 is configured when the difference between the states of the movable unit 70 is equal to or less than a threshold value when the state of the user a plurality of times is the first user state (the nth user state). When the plurality of times of the user's state is the first user state (the nth user state), one of the plurality of times of the movable part 70 is changed to the first movable portion state (the nth user state). May be stored as At this time, the number of the plurality of times may be changeable. For example, the data stored in the storage unit 48 may be updated when a similar movable unit state is continuously obtained a plurality of times for one use state (first use state).

  The movable part 70 may include a plurality of parts (for example, a back bottom 70a, a knee bottom 70b, a leg bottom 70c, a height changing part 70d, and the like). At this time, the data (first to third data, etc.) may be data related to at least one of the plurality of portions of the movable unit 70. For example, regarding the change unit 70d included in the movable unit 70, the value at the first time and the value at the second time may be compared and stored as the first movable unit state regarding the change unit 70d. At this time, other parts included in the movable unit 70 (for example, the back bottom 70a, the knee bottom 70b, the leg bottom 70c, etc.) may not be stored. For example, the height may be substantially the same and the back angle or the knee angle may be different at the time of a plurality of getting off. In such a case, data regarding the height may be stored.

  In the embodiment, when the movable unit 70 includes a plurality of parts, data regarding the plurality of parts may be stored as a “set”, or data regarding a part of the plurality of parts may be stored.

  As described above, the data can be updated in various modifications.

  For example, as illustrated in FIG. 1B, when the button 25a and the button 25b are provided, the button 25a may be regarded as the second operation reception unit 25 and the button 25b may be regarded as the third operation reception unit. In this case, two movable part states (memory positions) are stored. When the electric furniture 310 is an electric bed, for example, the first user state is one of rising, end sitting position, getting out of bed, falling asleep, sleeping, and awakening, and the second user state is rising, end sitting position, Another one of getting out of bed, falling asleep, sleeping, and awakening. At this time, the memory | storage part 48 memorize | stores the 1st movable part state of the movable part 70, when the user's state detected by the detection part 60 is a 1st user state. Furthermore, the memory | storage part 48 memorize | stores the 2nd movable part state of the movable part 70, when the state of the user detected by the detection part 60 is a 2nd user state. The movable unit 70 forms the stored first movable unit state when the second operation receiving unit (button 25a) receives the operation. And the movable part 70 forms said 2nd movable part state, when a 3rd operation reception part (button 25b) receives operation. The first movable part state is a state of the movable part 70 corresponding to a first user state (for example, one of rising, end sitting position, getting out of bed, falling asleep, sleeping, and awakening). A 2nd movable part state is a state corresponding to a 2nd user state (Another one of getting up, an end sitting position, getting out of bed, falling asleep, sleeping, and awakening).

  In the embodiment, the user state may be any state other than getting up, sitting on the edge, getting out of bed, falling asleep, sleeping, and awakening.

  In the embodiment, at least a part of the movable part state stored in the storage unit 48 may be initialized (set to an initial value). The stored data may be initialized collectively or individually. For example, when the state of the movable unit 70 formed by the operation of the second operation receiving unit 25 is stored in the storage unit 48, this storage may be initialized collectively or individually.

  Hereinafter, some examples of the state of the movable unit 70 (that is, the state of the electric furniture 310) formed based on the state of the movable unit 70 stored in the storage unit 48 will be described.

FIG. 5A to FIG. 5C are schematic views illustrating the state of the electric furniture according to the first embodiment.
These are examples when the electric furniture 310 is an electric bed.
In the example shown in FIG. 5A, the bed surface is low. The height of the bed surface is, for example, the lowest controllable height. For example, particularly when an elderly person is a user, if the bed surface is high when the user is sleeping (or sleeping), it is dangerous to fall from the bed while the user is sleeping. . Lowering the bed surface makes it safer. When the user state is falling asleep (or sleeping), such a state where the bed surface is low is stored in the storage unit 48 as a movable portion state. When the second operation accepting unit 25 accepts an operation when the second operation accepting unit 25 accepts an operation when the sleep position (or sleep, “sleep”) memory position is set, the movable unit stored in the storage unit 48. The state is read out. Thereby, the state where a bed surface is low is formed.

  When the user's state is falling asleep, the back bottom 70a may be inclined at an angle of 4 degrees or more and less than 24 degrees (an angle based on a horizontal plane). Such a tilt induces sleep more naturally and quickly.

  In the example shown in FIG. 5B, the angle of the back bottom 70a is large, the angles of the knee bottom 70b and the leg bottom 70c are medium, and the bed surface is high. For example, such a posture is formed when the user's condition is rising. For example, such an attitude is preferred when watching television. Such a posture is stored in the storage unit 48. When the rising memory position is set in the second operation receiving unit 25, when the second operation receiving unit 25 receives an operation, the movable unit state stored in the storage unit 48 is read. Thereby, the posture corresponding to rising is formed.

  In the example shown in FIG. 5C, the angles of the back bottom 70a, the knee bottom 70b, and the leg bottom 70c are medium, and the bed surface is high. Such a state of the electric furniture 310 may be a state (posture) preferred by the user.

  For example, in one day, one state of the user (that is, one state of the movable part 70) may occur for a long time. A state that occurs for a long time can be estimated to be a posture that the user likes. The user's preferred state may vary from user to user. A state that the user prefers may be one of the user states.

  For example, when an actuator with a load sensor is used as the drive unit 72, it can be estimated that the state in which the operation state of the actuator occurs in a long time is the user's favorite state. The operating state of the actuator generated over a long time may be stored in the storage unit 48 as one of the movable unit states corresponding to the user's favorite state (one of the user states).

(Second Embodiment)
FIG. 6 is a schematic perspective view illustrating the electric furniture according to the second embodiment.
As shown in FIG. 6, the electric furniture 320 according to the present embodiment also includes a movable part 70, a detection part 60, and a control part 42. Also in this example, the detection unit 60 detects the state of the user. The control unit 42 can perform a movable unit control that moves the movable unit 70 based on the state of the user detected by the detection unit 60. In the present embodiment, a sheet type bed leaving sensor 61 is provided as the detection unit 60. For example, when a user of the electric furniture 320 (electric bed in this example) gets up from the electric bed and gets on the bed sensor 61, the weight of the user is added to the bed sensor 61. The bed leaving sensor 61 detects a load due to weight. Thereby, the bed leaving sensor 61 can detect the bed leaving.

  In the electric furniture 320, the sensor 62 may be provided on the electric bed. When the sensor 62 can detect a load (pressure), the sensor 62 may be provided in each of a plurality of portions of the electric bed. The weight (load) of the user of the electric bed is detected by the sensor 62. Thereby, the sensor 62 can detect (estimate) various states of the user.

  The sensor 62 may be capable of detecting at least one of a user's pulse, respiration, and body temperature. The state of the user can be detected (estimated) by these values and changes thereof.

  For example, an image sensor 63 (for example, a camera) may be provided. The image sensor 63 acquires an image of the electric bed and its surroundings. Based on this image, the state of the user can be detected (estimated).

  The bed leaving sensor 61, the sensor 62, and the image sensor 63 are examples of the detection unit 60. The detector 60 can be variously modified.

  Hereinafter, some examples of the sensor 62 will be described.

  FIG. 7A and FIG. 7B are schematic views illustrating the electric furniture according to the second embodiment. FIG. 7A is a schematic perspective view illustrating the sensor 62 and the arrangement of the sensor 62. FIG. 7B is a schematic plan view illustrating the sensor 62. In FIG. 7A, the components are drawn apart from each other to make the drawing easier to see.

  As shown in FIG. 7A, a bottom 71 is provided on the bed leg 74 of the bed 70. A mattress 76 is provided on the bottom 71. A user 81 lies on the mattress 76. The sensor 62 (detection unit 60) is provided between the bottom 71 and the mattress 76. In this example, the sensor 62 has a sheet shape or a plate shape.

  As shown in FIG. 7B, the sensor 62 includes a circuit part 62a and a sensor part 62b. The circuit unit 62a includes a communication unit 62c. The communication unit 62c transmits and receives data to and from the control unit 42. Transmission / reception is performed by any method including at least one of wired and wireless.

  The sensor unit 62b includes, for example, a sensor device 62d. The sensor unit 62b detects the force (or characteristics corresponding to the force) received by the sensor unit 62b. The force includes, for example, pressure and / or sound waves. The sensor unit 62b includes, for example, a pressure sensor. The sensor unit 62b includes, for example, a microphone.

  A force (at least one of pressure and sound wave) by the user 81 is applied to the sensor unit 62b via the mattress 76. For example, a signal based on the force detected by the sensor unit 62b is output from the circuit unit 62a. The output signal is supplied to the control unit 42. In the control unit 42, the state of the user 81 (such as getting out of bed, sleeping, or awakening) is estimated based on at least one of the magnitude of the signal (force) and the temporal change in the magnitude of the signal (force). The Alternatively, in the circuit unit 62a, the state of the user 81 (eg, getting out of bed, sleeping or awakening) may be estimated based on at least one of the force detected by the sensor unit 62b and the temporal change in the force. . The state of the user 81 may include getting up, end sitting position (for example, getting ready for getting out of bed), getting out of bed, falling asleep, sleeping, or awakening.

  For example, vibration according to the state of the user 81 is applied to the sensor unit 62b. The vibration corresponds to the body movement of the user 81, for example. Vibration is detected by the sensor unit 62b. The vibration may include sound.

  For example, a vibration detection unit (sensor unit 62b) and a processing unit (at least a part of at least one of the circuit unit 62a and the control unit 42) are provided. The processing unit includes, for example, a computer. The vibration detecting means detects, for example, vibration of a sleeping person (user 81) on the bedding (bed 70). The processing unit includes, for example, an activity amount calculating unit, a sleep determination value calculating unit, and a sleep state determining unit. These means are functionally divided. For example, the activity amount calculating means calculates the activity amount of the sleeping person for each sampling unit time based on the vibration detected by the vibration detecting means. The sleep determination value calculation means weights, for example, the activity amount at the first time (for example, the current time) and the activity amount calculated at the second time (for example, the time before the current time) according to the time. The sum total of the values multiplied by the corrected coefficients is calculated as a sleep determination value. For example, when the sleep determination value exceeds a predetermined threshold, the sleep state determination unit determines that the sleep state is an awake state, and otherwise determines the sleep state.

FIG. 8A to FIG. 8D are schematic views illustrating another electric furniture according to the second embodiment.
FIG. 8A is a cross-sectional view of an example of the sensor 62. FIG. 8B is a plan view of an example of the sensor 62. FIG. 8C is a perspective view illustrating the arrangement of the sensors 62. FIG. 8D is a side view illustrating the arrangement of the sensors 62.

  As shown in FIG. 8A, in this example, the sensor 62 includes a first plate body 62p and a second plate body 62q. The second plate body 62q faces the first plate body 62p. These plates may be in the form of sheets.

  The second plate body 62q includes a support protrusion 62s. The support protrusion 62s faces the outer edge portion of the first plate body 62p. The first plate body 62p includes an inner portion inside the outer edge portion. An air accommodating body 62r is provided between the inner portion and the second plate body 62q. In this example, a groove 62t is provided in the second plate body 62q. An air accommodating body 62r is provided in a space formed by the groove 62t (a space to be divided). One end of a signal line 62u is connected to the air container 62r. The other end of the signal line 62u is connected to a detection circuit 62v (detection device).

  As shown in FIG. 8B, the support protrusion 62s faces a part of the outer edge of the first plate 62p. In this example, the support protrusions 62s are provided at the four corner portions of the first plate body 62p. The sensor 62 has a sheet shape or a plate shape.

  As shown in FIG. 8C, the sensor 62 is placed on the bottom 71. As shown in FIG. 8D, the sensor 62 is placed on the bottom 71, and the mattress 76 is placed thereon. A user 81 lies on the mattress 76.

  For example, a force corresponding to the body movement of the user 81 is applied to the air containing body 62r. This force includes, for example, vibration. A force (or a characteristic corresponding to the force) applied to the air container 62r is detected by the detection circuit 62v. For example, a pressure detector is provided in the air container 62r, and a signal (detection result) obtained by the pressure detector is supplied to the detection circuit 62v. For example, the air container 62r is provided with a microphone, and a signal (detection result) obtained by the microphone is supplied to the detection circuit 62v. For example, the output (signal) of the detection circuit 62v is supplied to the control unit 42. In the control unit 42, the state of the user 81 (such as getting out of bed, sleeping or awakening) is estimated. Alternatively, the detection circuit 62v may estimate the state of the user 81 (such as getting out of bed, sleeping, or awakening) based on at least one of the detected force and the temporal change in the force. The state of the user 81 may include getting up, end sitting position (for example, getting ready for getting out of bed), getting out of bed, falling asleep, sleeping, or awakening.

  The sensor 62 is, for example, a biological information collection device. In the sensor 62, the first plate body 62p is disposed on the body side of the user 81, for example. The second plate body 62q is provided on the support side, for example. A deformable air accommodating body 62r for detecting air pressure is provided between the central portions of the first plate body 62p and the second plate body 62q. A groove 62t for mounting the air accommodating body 62r is provided at the center of the second plate body 62q. The support protrusion 62s protrudes in the direction from the second plate 62q toward the first plate 62p. The support protrusions 62s support the four corners around the first plate body 62p. For example, the support protrusions 62s always support the first plate body 62p in a horizontal state (normal state).

  In the embodiment, the sensor 62 can be variously modified.

  In the embodiment, the movable unit 70 moves according to the control operation received by the operation receiving unit (first operation receiving unit 20). At this time, for example, the speed at which the movable unit 70 moves based on the state of the user detected by the detection unit 60 is the speed at which the movable unit 70 moves according to the control operation received by the operation receiving unit. It may be different. At least one of these speeds may be changeable (settable). Such speed change control is performed by the control unit 42, for example.

  For example, the state of the user detected by the detection unit 60 may include a case where there is no person (for example, a user) on the bed (electric furniture 310 or the like). The speed at which the movable section 70 moves when there is no person (such as a user) on the bed may be different from the speed at which the movable section 70 moves according to the control operation received by the operation receiving section. . The speed at which the movable unit 70 moves when there is no person (such as a user) on the bed may be faster than the speed at which the movable unit 70 moves according to the control operation received by the operation receiving unit. .

(Third embodiment)
FIG. 9 is a schematic perspective view illustrating the electric furniture according to the third embodiment.
As shown in FIG. 9, the electric furniture 330 is an electric chair. The electric furniture 330 includes a movable part 70. The movable part 70 includes, for example, a backrest part 70e and a seat surface part 70f. The backrest portion 70e corresponds to a bottom portion whose angle can be changed. The seat surface portion 70f corresponds to the height changing portion. The angle of the seat surface portion 70f may be changeable. The movable unit 70 is controlled by the control device 160 according to the embodiment. Also in the electric furniture 330, the state of the movable part 70 is memorize | stored according to a user's state. The stored state of the movable unit 70 is formed according to the operation of the second operation receiving unit 25.

  According to the embodiment, it is possible to provide an electric furniture that can improve ease of use.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. For example, specific elements included in the electric furniture, such as a first operation reception unit, an operation button, a second operation reception unit, a memory button, a switch, a display area, a detection unit, a movable unit, a drive unit, a control unit, and a storage unit With respect to specific configurations, those skilled in the art can appropriately select from known ranges to implement the present invention in the same manner, and are included in the scope of the present invention as long as similar effects can be obtained.

  Combinations of any two or more elements of each specific example within the technically possible range are also included in the scope of the present invention as long as they include the gist of the present invention.

  In addition, all electric furniture that can be implemented by a person skilled in the art based on the electric furniture described above as an embodiment of the present invention is also within the scope of the present invention as long as it includes the gist of the present invention.

  In addition, in the category of the idea of the present invention, those skilled in the art can conceive of various changes and modifications, and it is understood that these changes and modifications also belong to the scope of the present invention. .

  DESCRIPTION OF SYMBOLS 10 ... Operation part, 10a, 10b ... 1st, 2nd surface, 15 ... Cable, 20 ... 1st operation reception part, 21a, 21b, 22a, 22b, 23a, 23b, 24a, 24b ... Button, 25 ... 2nd Operation accepting unit, 25a, 25b ... button, 28 ... display area, 42 ... control unit, 48 ... storage unit, 50 ... switch, 60 ... detection unit, 61 ... bed sensor, 62 ... sensor, 62a ... circuit unit, 62b ... Sensor unit, 62c ... Communication unit, 62d ... Sensor device, 62p ... First plate, 62q ... Second plate, 62r ... Air container, 62s ... Support projection, 62t ... Groove, 62u ... Signal line, 62v ... Detection Circuit 63 ... Image sensor 70 ... Movable part 70a ... Back bottom 70b ... Knee bottom 70c ... Leg bottom 70d ... Height changing part 70e ... Backrest part 7 0f ... Seating surface part, 70h ... Head bottom, 71 ... Bottom, 72 ... Drive part, 74 ... Bed leg part, 76 ... Mattress, 81 ... User, 160 ... Control device, 310, 320, 330 ... Electric furniture, H1 ... height

Claims (9)

A movable part that moves according to the operation received by the first operation receiving part;
A storage unit for storing the first movable unit state of the movable unit when the state of the user detected by the detection unit is the first user state;
With
The said movable part is electric furniture which will be in the said 1st movable part state memorize | stored when the 2nd operation reception part receives operation. The detection unit detects that the state of the user is the first user state at a first time,
The detection unit detects that the state of the user is the first user state at a second time,
The storage unit moves the movable part at the first time when a difference between the state of the movable part at the first time and the state of the movable part at the second time is equal to or less than a threshold value. The electric furniture according to claim 1, wherein one of the state of the part and the state of the movable part at the second time is stored as the first movable part state. The detection unit detects that the state of the user is the first user state at a first time,
The detection unit detects that the state of the user is the first user state at a second time after the first time;
The storage unit moves the movable unit at the second time when a difference between the state of the movable unit at the first time and the state of the movable unit at the second time is equal to or less than a threshold value. The electric furniture according to claim 1, wherein the state of a part is stored as the first movable part state. The storage unit stores the state of the movable unit as first data when the state of the user detected by the detection unit is the first user state at the first time,
The detection unit detects that the state of the user detected by the detection unit at a second time after the first time is the first user state;
When the difference between the first data and the second data relating to the state of the movable part at the second time is less than or equal to a threshold value, the storage unit stores the first data and the second data. 3. The electric furniture according to claim 1, wherein the third data based on is stored as the first movable part state.   5. The electric furniture according to claim 4, wherein the third data is ½ of a sum of a product of the first data and the first coefficient and a product of the second data and the second coefficient. The detection unit detects a plurality of times that the state of the user is the first user state,
When the difference between the states of the movable parts is equal to or less than a threshold value when the state of the user of the plurality of times is the first user state, the storage unit is the plurality of times Storing one of the plurality of movable parts as the first movable part state when the state of the user is the first user state,
The electric furniture according to claim 1, wherein the number of the plurality of times is changeable. The electric furniture is an electric bed,
The electric furniture according to any one of claims 1 to 6, wherein the first user state is one of rising, end sitting, getting out of bed, falling asleep, sleeping, and awakening. The storage unit stores a second movable part state of the movable part when the state of the user detected by the detection unit is a second user state,
The electric furniture according to claim 1, wherein the movable part can form the second movable part state when the third operation accepting part accepts an operation. The electric furniture is an electric bed,
The first user state is one of getting up, sitting on the edge, getting out of bed, falling asleep, sleeping, and awakening,
The electric furniture according to claim 8, wherein the second user state is another one of getting up, sitting on the edge, getting out of bed, falling asleep, sleeping, and awakening.

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