JP6229859B2 - Electric bed - Google Patents

Description

  The present invention relates to an electric bed, and more particularly to an electric bed provided with an operation unit such as a hand switch.

  In recent years, electric beds used in hospitals and homes have become widespread. The electric bed includes a bottom that supports a human body, an adjustment mechanism that adjusts the posture and height of the bottom, and an operation unit called a hand switch for giving an operation command to the adjustment mechanism.

  In such an electric bed, various ideas have been proposed so that the posture and height of the bottom can be adjusted to a desired position with a simple operation (see, for example, Patent Document 1).

  In Patent Literature 1, the operation state of the bottom of the electric bed is displayed numerically or graphically on a display unit provided in the operation unit. Thereby, since the operator can confirm the operation state of the electric bed intuitively and numerically, the bottom posture and height can be adjusted to a desired position with a simple operation.

Japanese Patent No. 2879819

  However, in the conventional electric bed, there is a point to be careful when a person (such as a nurse) who is different from a user such as a patient who uses the electric bed operates. That is, a person (operator) who operates the operation unit is required to make a voice such as “The bed moves” to a user such as a patient before performing the operation. If the operation unit is operated without making such a voice, the user of the electric bed is surprised that the bottom suddenly moves.

  Then, an object of this invention is to provide the electric bed which can suppress that the user of an electric bed is surprised at an unexpected movement when a bottom moves by operation by an operation part.

In order to achieve the above object, one embodiment of an electric bed according to the present invention includes a bottom for supporting a human body, an adjustment mechanism for adjusting the posture and height of the bottom, and an operation command for giving an operation command to the adjustment mechanism. An electric bed including an operation unit, wherein the operation unit includes an operation panel including operation buttons, a sound output unit that outputs sound, and the sound output unit and the adjustment mechanism according to an operation on the operation panel. A control unit for controlling the operation button, and when the operation button is pressed and the pressing continues, the control unit outputs an audio output corresponding to the pressed operation button to the audio output unit. After the start, an operation command corresponding to the pressed operation button is given to the adjustment mechanism to cause the adjustment mechanism to execute an operation corresponding to the operation button, and the operation button is output during the output of the sound. Down the pressing is released, when a new operation button is released beyond a predetermined time has been pressed, not be the same as the operation buttons operation button pressed newly is pressed just before However, the output of the sound is stopped, and the adjustment mechanism is caused to execute an operation corresponding to the newly pressed operation button .

  With the electric bed according to the present invention, it is possible to prevent the user of the electric bed from being surprised by an unexpected movement when the bottom is moved by an operation by the operation unit.

External view of electric bed in embodiment of the present invention External view of the operation unit of the electric bed Functional block diagram of the electric bed Flow chart showing the operation of the electric bed Timing chart showing the operating state of the electric bed Another timing chart showing the operating state of the electric bed The timing chart which shows the operation state of the electric bed in the modification of embodiment of this invention The figure which shows the example of a display in the operation part with which the electric bed in embodiment of this invention is provided. The timing chart which shows the operation state of the electric bed in the modification of embodiment of this invention The flowchart which shows operation | movement of the electric bed in the modification of embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that each of the embodiments described below shows a preferred specific example of the present invention. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention will be described as optional constituent elements that constitute a more preferable embodiment.

  FIG. 1 is an external view of an electric bed 10 according to an embodiment of the present invention. The electric bed 10 is an electric bed used in hospitals, homes, and the like. As main parts, the electric bed 10 includes a bottom 20 that supports a human body, an adjustment mechanism 30 that adjusts the posture and height of the bottom 20, and an adjustment mechanism. And an operation unit 40 for giving an operation command to 30.

  The bottom 20 includes a plurality of parts that are sequentially connected by a hinge or the like, that is, a back bottom 21, a waist bottom 22, a knee bottom 23, and a foot bottom 24.

  The adjustment mechanism 30 is a mechanism that adjusts the posture and height of the bottom 20 in accordance with an operation command sent from the operation unit 40. The adjustment mechanism 30 includes a control circuit, a drive mechanism including an electric actuator that operates under the control of the control circuit, and various sensors (not shown) provided in the electric bed 10.

  As shown in FIG. 2, the operation unit 40 is a hand switch connected to the adjustment mechanism 30 by wire or wirelessly, and is configured by a color liquid crystal display module that displays characters, numerical values, symbols, and images. An operation panel 42 including a unit 41, operation buttons 43 and setting buttons 44 is provided.

  The operation buttons 43 include a switch button 43a, a power button 43b, a head / back and foot interlocking up button 43c, a head / back and foot interlocking down button 43d, a foot up button 43e, a foot down button 43f, a height up button 43g, A height down button 43h is included. The switching button 43a is a button for switching between the two modes next. One is a “non-interlocking mode” in which the head / back foot linked up button 43c and the head / back foot linked down button 43d function only for the back bottom 21. The other is an “interlocking mode” in which the head / back foot interlocking up button 43c and the head / back foot interlocking down button 43d function for both the back bottom 21 and the knee bottom 23. The power button 43b is a button for turning on or off the power of the adjusting mechanism 30. The head / back foot interlocking raising button 43c raises the back bottom 21 (in the non-interlocking mode) or raises the connecting portion between the knee bottom 23 and the foot bottom 24 at the same time as the back bottom 21 is raised (in the interlocking mode) It is a button for. The head / back foot interlocking lowering button 43d tilts the back bottom 21 (in the non-interlocking mode), or lowers the connecting portion between the knee bottom 23 and the foot bottom 24 at the same time as the back bottom 21 is tilted (in the interlocking mode). It is a button for. The foot raising button 43e is a button for raising the connecting portion between the knee bottom 23 and the foot bottom 24. The foot lowering button 43f is a button for lowering the connecting portion between the knee bottom 23 and the foot bottom 24. The height raising button 43g is a button for raising the entire bottom 20. The height lowering button 43h is a button for lowering the entire bottom 20.

  FIG. 3 is a functional block diagram of the electric bed 10 in the present embodiment. The electric bed 10 includes a bottom 20 that supports a human body, an adjustment mechanism 30 that adjusts the posture and height of the bottom 20, and an operation unit 40 that gives an operation command to the adjustment mechanism 30.

  The adjustment mechanism 30 adjusts the posture and height of the bottom 20 according to the operation command sent from the operation unit 40, and information (sensor information) obtained from various sensors (not shown) provided in the electric bed 10. ) To the operation unit 40.

  The operation unit 40 is a hand switch for operating the adjustment mechanism 30 by giving an operation command to the adjustment mechanism 30 or receiving sensor information from the adjustment mechanism 30 and presenting the information to the operator. 42, an audio output unit 45, and a control unit 46.

  The display unit 41 is a display for displaying the state of the electric bed 10 or displaying various setting contents to the operator under the control of the control unit 46. For example, the operation state of the bottom 20 is expressed by numerical values and graphics. Is displayed.

  The operation panel 42 includes operation buttons 43 (a switching button 43a, a power button 43b, a head / back and foot linked up button 43c, a head / back and foot linked down button 43d, a foot up button 43e, a foot down button 43f, and a height up button 43g. , And a height lowering button 43 h) and a setting button 44. The setting button 44 writes various settings for changing the operation of the control unit 46 (that is, the electric bed 10) (specifically, setting parameters for determining the mode of operation to the internal memory, or in the internal memory) This is a button for performing processing for changing setting parameters. The various settings include setting whether to output sound and a button confirmation sound (to be described later) (switching operation sound), setting a range (limit value) in which each part constituting the bottom 20 can operate (operation part restriction), A setting (memory) for storing the position of each part constituting the bottom 20 and a setting for the ascending and descending speed of the bottom 20 are included.

  The voice output unit 45 is a processing unit that outputs sound and voice under the control of the control unit 46, and includes a voice synthesis circuit. The contents of the audio are as shown in the following table, for example.

  In the above table, the operation by the operation button 43 and the setting button 44 (“operation / setting”) and the contents of the sound output by the operation (“the contents of the sound”) are shown. In the above table, “back raising” means that the head / back foot interlocking raising button 43c is pressed in the non-interlocking mode. “Back-lowering” indicates that the head / back foot interlocking lowering button 43d is pressed in the non-interlocking mode. “Interlocked back up” refers to pressing of the head / back foot interlock up button 43c in the interlock mode. “Interlocked back-lowering” refers to depression of the head / back foot interlocking lowering button 43d in the interlocking mode. “Interlocked switching” refers to switching of the mode (interlocking mode / non-interlocking mode) by the switching button 43a. “Memory”, “operation part restriction”, “switching operation sound”, and “speed” refer to the settings on the setting button 44.

  The control unit 46 is a processing unit that controls the audio output unit 45 and the adjustment mechanism 30 in accordance with an operation on the operation panel 42. The control unit 46 includes a nonvolatile memory such as a ROM that stores a control program, a processor such as a CPU that executes the control program, and a volatile memory such as a RAM that serves as a work area executed by the processor. .

  The control unit 46 performs the following control as a characteristic function.

  That is, when the operation button 43 is pressed and the pressing continues, the control unit 46 first causes the audio output unit 45 to start outputting sound corresponding to the pressed operation button 43. Thereafter, the control unit 46 causes the adjustment mechanism 30 to execute an operation corresponding to the operation button 43 by giving an operation command corresponding to the pressed operation button 43 to the adjustment mechanism 30. Thereby, before the bottom 20 starts to move, sound corresponding to the operation is output. Therefore, even if a person (nurse or the like) different from the user of the electric bed 10 performs an operation by the operation unit 40 without making an appropriate voice, the user of the electric bed 10 suddenly moves the bottom 20 Surprising the movement is suppressed.

  On the other hand, when the pressing of the operation button 43 is released during the sound output, the control unit 46 stops outputting the sound and gives an operation command corresponding to the operation button 43 to the adjustment mechanism 30. Discontinue. As a result, when the operation button 43 is accidentally pressed, or when it is found that operating the bottom 20 is unnecessary or inappropriate, the operation of the bottom 20 can be immediately stopped. it can. In the present embodiment, when the operation button 43 is pressed, first, sound corresponding to the operation button 43 is output. Therefore, the operator who has heard the sound or the user of the electric bed 10 can be aware of the fact that the operation button 43 that has been pressed is wrong or that the pressing is unnecessary. High nature. Therefore, such a cancel function can reliably avoid an operation of the bottom 20 due to an erroneous operation or an unnecessary operation (for example, before being executed).

  When the operation button 43 is released during the operation of the adjustment mechanism 30, the control unit 46 gives a stop command to the adjustment mechanism 30 or does not give an operation command. Stop operation. Thereby, even if the bottom 20 is operating, the operation of the bottom 20 can be stopped.

  Further, when the operation button 43 is pressed, the control unit 46 causes the sound output unit 45 to output a button confirmation sound that is a sound corresponding to the pressed operation button 43 prior to outputting the sound. As a result, the operator can know how much the operation button 43 should be pressed by listening to the button confirmation sound, so that the desired operation can be reliably performed.

  In addition, even when the operation button 43 is released during the sound output, the control unit 46 operates when the operation button 43 is pressed within a predetermined time from the release. Processing is performed assuming that the pressing of 43 has not been released. That is, the control unit 46 outputs sound and gives an operation command to the adjustment mechanism 30. Thereby, even in the case where the operator's finger power is insufficient or the like, even if the pressing of the operation button 43 is temporarily released, it is treated that the operation has not been released. A stable control of the adjusting mechanism 30 is realized.

  In addition, when the operation button 43 is continuously pressed, the control unit 46 gives an operation command to the adjustment mechanism 30 after the output of all the sounds is completed. Thus, since the bottom 20 starts to move after all of the sound is output, if the operator notices an erroneous operation or notices that an unnecessary operation has been performed, the operation button 43 is output during the sound output. It is possible to avoid the bottom 20 from moving by releasing the pressing of.

  In addition, when the setting button 44 is pressed and continues to be pressed, the control unit 46 outputs a sound corresponding to the pressed setting button 44 from the sound output unit 45, and the setting that is pressed. Configure the settings corresponding to the button. As a result, sound corresponding to the setting button 44 is output, so that the operator can make various settings using not only the eyes (dialog with the display unit 41) but also the ears. Therefore, an accurate setting operation is realized.

  Next, the operation of the electric bed 10 according to the present embodiment configured as described above will be described.

  FIG. 4 is a flowchart showing the operation of the electric bed 10 in the present embodiment.

  The control unit 46 determines whether or not the operation button 43 has been pressed (S10). If it is determined that the operation button 43 has been pressed (Yes in S10), the control unit 46 outputs a button confirmation sound corresponding to the pressed operation button 43 as a sound. The unit 45 outputs for a predetermined time (for example, 0.15 seconds) (S11).

  Subsequently, the control unit 46 causes the audio output unit 45 to start outputting audio corresponding to the pressed operation button 43 (S12). After that, the control unit 46 determines whether or not the pressing of the operation button 43 is released during the sound output (S13).

  As a result, when it is determined that the pressing of the operation button 43 is released (Yes in S13), the control unit 46 performs the operation within a predetermined time (for example, 0.5 seconds) from the release. It is determined whether or not the button 43 has been pressed again (S14). When it is determined that the button has not been pressed again (No in S14), the control unit 46 stops outputting the sound (S15), and without giving an operation command corresponding to the operation button 43 to the adjustment mechanism 30. The monitoring state of the operation button 43 is returned (S10).

  On the other hand, when it is determined that pressing of the operation button 43 has not been released (No in S13), and the pressing of the operation button 43 has been released, the operation button 43 is released within a predetermined time from that time. If it is determined that it has been pressed again (Yes in S14), the control unit 46 determines whether or not the audio output has been completed (S16). As a result, when it is determined that the audio output has not been completed (No in S16), the control unit 46 repeats the same processing until the audio output is completed (all the audio output is completed) (S13). To S15).

  When it is determined that the audio output has been completed (Yes in S16), the control unit 46 subsequently gives an operation command corresponding to the pressed operation button 43 to the adjustment mechanism 30, thereby operating the operation button. The adjustment mechanism 30 is caused to execute an operation corresponding to 43 (S17).

  Thereafter, the control unit 46 determines whether or not the pressing of the operation button 43 is released during the operation of the adjusting mechanism 30 (that is, during the operation of the bottom 20) (S18). As a result, when it is determined that the pressing of the operation button 43 is released (Yes in S18), the control unit 46 performs the operation within a predetermined time (for example, 0.5 seconds) from the release. It is determined whether or not the button 43 has been pressed again (S19). If it is determined that it has not been pressed again (No in S19), the control unit 46 stops the operation of the adjustment mechanism 30 (that is, the operation of the bottom 20) (S20) and returns to the monitoring state of the operation button 43 ( S10).

  On the other hand, when it is determined that the pressing of the operation button 43 has not been released (No in S18), and the pressing of the operation button 43 has been released, the operation button 43 is released within a predetermined time from that time. When it is determined that the button has been pressed again (Yes in S19), the control unit 46 determines whether or not the operation of the adjustment mechanism 30 (that is, the operation of the bottom 20) has reached the operation limit value (S21).

  As a result, when it is determined that the operation of the adjustment mechanism 30 (that is, the operation of the bottom 20) has reached the operation limit value (Yes in S21), the control unit 46 operates the operation of the adjustment mechanism 30 (that is, the bottom 20). Is stopped (S20), and the operation button 43 is returned to the monitoring state (S10). On the other hand, when it is determined that the operation of the adjustment mechanism 30 (that is, the operation of the bottom 20) has not reached the operation limit value (No in S21), the control unit 46 repeats the same processing (S18 to S20). .

  FIG. 5A is a timing chart showing an operating state of electric bed 10 in the present embodiment. Here, a timing chart in a case where the operation button 43 is continuously pressed until the bottom 20 starts to move is shown.

  When the operation button 43 is pressed, a button confirmation sound corresponding to the pressed operation button 43 is output from the sound output unit 45 (“button confirmation sound (0.15 seconds)” in FIG. 5A). Thereafter, since the operation button 43 is continuously pressed, a sound corresponding to the operation button 43 is output from the sound output unit 45 (“sound output (about 2 seconds)” in FIG. 5A). Further, since the operation button 43 is continuously pressed, the operation of the bottom 20 corresponding to the operation button 43 is executed until the operation button 43 is released ("bottom operation" in FIG. 5A). .

  FIG. 5B is another timing chart showing an operation state of electric bed 10 in the present embodiment. Here, a timing chart in the case where the pressing of the operation button 43 is released during audio output is shown.

  When the operation button 43 is pressed, a button confirmation sound corresponding to the pressed operation button 43 is output from the sound output unit 45 (“button confirmation sound (0.15 seconds)” in FIG. 5B). Thereafter, since the operation button 43 is continuously pressed, the output of the sound corresponding to the operation button 43 is started. However, in this case, since the pressing of the operation button 43 is released during the sound output (0.5 seconds after the sound is output), the sound output is stopped at that time ("" in FIG. 5B). Audio output (0.5 seconds) "), and the bottom 20 does not operate thereafter.

  Note that it may be possible to switch to the operation shown in FIG. 5C (switch the operation mode) instead of the operation shown in FIG. FIG. 5C is a timing chart showing the operating state of the electric bed 10 in the modification of the present embodiment. Here, a timing chart in the case where the pressing of the operation button 43 is released during audio output is shown. In this case, while the sound is being output (for example, 0.5 seconds after the sound is output), the pressing of the operation button 43 is released, but the sound output is not stopped and all the sound is output. ("Audio output (about 2 seconds)" in FIG. 5C). The point that the bottom 20 does not operate thereafter is the same as in FIG. 5B.

  In the present embodiment, even when the setting button 44 of the operation unit 40 is pressed, the sound corresponding to the pressed setting button 44 is output from the sound output unit 45. The setting process by the control unit 46 at this time may be performed after the completion of the audio output, similarly to the “bottom operation” shown in FIG. 5A, or before the “bottom operation” or “bottom operation”. ”May be performed in parallel.

  As described above, according to the electric bed 10 in the present embodiment, the sound corresponding to the operation is output before the bottom 20 starts to move. Therefore, even if a person (such as a nurse) who is different from the user of the electric bed 10 operates the operation unit 40 without making an appropriate voice, the user of the electric bed 10 suddenly moves the bottom 20 Surprising the movement is suppressed.

  When the operation button 43 is released during the sound output, the sound output is stopped and the subsequent execution by the adjusting mechanism 30 is also stopped. As a result, when the operation button 43 is accidentally pressed, or when it is found that operating the bottom 20 is unnecessary or inappropriate, the operation of the bottom 20 can be immediately stopped. it can. In other words, the operator who has heard the voice corresponding to the operation button 43 or the user of the electric bed 10 has the operation button 43 that has been pressed down incorrectly or does not need to be pressed. You are likely to notice that. Therefore, such a cancel function can reliably avoid the operation of the bottom 20 due to an erroneous operation or an unnecessary operation.

  Further, when the operation button 43 is pressed, a button confirmation sound is output prior to outputting the sound. As a result, the operator can know how much the operation button 43 should be pressed by listening to the button confirmation sound, so that the desired operation can be reliably performed.

  In addition, even when the operation button 43 is released during sound output, if the operation button 43 is pressed within a predetermined time from the release, the operation button 43 is released. It is treated as if it was not. Thereby, even in the case where the operator's finger power is insufficient or the like, even if the pressing of the operation button 43 is temporarily released, it is treated that the operation has not been released. A stable control of the adjusting mechanism 30 is realized.

  Further, after all of the sound corresponding to the operation button 43 is output, the bottom 20 starts to move. As a result, when the user notices an erroneous operation or notices that an unnecessary operation has been performed, the bottom 20 can be prevented from moving by releasing the pressing of the operation button 43 during audio output. The

  As mentioned above, although the electric bed of this invention was demonstrated based on embodiment, this invention is not limited to embodiment. Without departing from the gist of the present invention, various modifications conceived by those skilled in the art have been made in the present embodiment, and other forms constructed by arbitrarily combining some components in the embodiments and modifications are also possible. Are included within the scope of the present invention.

  For example, the content, type, tone, voice quality, speech, tone, volume, and the like of the sound output from the sound output unit 45 may be changed by the setting button 44 of the operation unit 40. At this time, the current setting content (for example, voice quality) may be displayed on the display unit 41 as in the display example on the display unit 41 shown in FIG.

  Moreover, in the said embodiment, although the operation button 43 was arrange | positioned at the front surface of the operation part 40 and the setting button 44 was arrange | positioned at the side surface of the operation part 40, it is not limited to such arrangement | positioning. The setting button 44 may be disposed on the front surface or the back surface of the operation unit 40, may be used as the operation button 43, or may not be provided on the operation unit 40.

  In the above embodiment, the bottom 20 is operated after all the audio output is completed. However, as shown in the timing chart of FIG. 7, the operation of the bottom 20 is started before all the audio output is completed. May be. Even in such a case, if the pressing of the operation button 43 is released during the period from when the audio output is started to when the operation of the bottom 20 is started, the audio output is stopped and the bottom It can be avoided that 20 operates. Note that if the pressing of the operation button 43 is released during a period in which the audio output and the operation of the bottom 20 are in parallel, both the audio output and the operation of the bottom 20 are stopped.

  In the above embodiment, the voice output is stopped halfway in the case where the same operation button 43 is not pressed again within a predetermined time after the operation button 43 is released (see FIG. 4 S13-15), it is not limited to such a case. FIG. 8 is a flowchart showing the operation of the electric bed in the modification of the embodiment of the present invention. The same steps as those in FIG. 4 are denoted by the same reference numerals as those in FIG. Here, steps S30 to S35 are different from FIG. In this modification, after the pressing of the operation button 43 is released (S13), it is determined again whether or not the operation button 43 is pressed (S30). As a result, when the operation button 43 is not pressed ( No in S30), all of the audio is output (S31). On the other hand, when the operation button 43 is pressed again (Yes in S30), when the pressing is within a predetermined time (for example, 0.5 seconds) from when it was released immediately before. (Yes in S32), all of the audio is output (S31). On the other hand, when the pressing is not performed within the predetermined time (No in S32), it is determined whether or not the pressed operation button 43 is the same as the operation button 43 released immediately before ( S33). As a result, when the pressed operation button 43 is not the same as the previously canceled operation button 43 (No in S33), the audio output is stopped (intermediately stopped), and the pressed new operation button 43 is displayed. A corresponding operation is performed (S34). On the other hand, if the pressed operation button 43 is the same as the previously released operation button 43 (Yes in S33), the audio output is stopped (intermediately stopped), and the pressed corresponding operation button 43 is supported. Is performed (S35). As described above, the sound output may be stopped even when the operation button 43 is pressed again after a predetermined time or more has elapsed since the pressing of the operation button 43 was released. In this case, in addition to stopping the audio output, an operation corresponding to the newly pressed operation button 43 is performed.

  In the audio output, the “audio content” shown in the table may be output only once, or the audio output may be continued for a predetermined time (for example, 2 seconds) ( "Audio content" may be repeated). By continuing the sound output for a certain time, the sound is always output only for a certain time without depending on the type of the operation button 43 (that is, “the contents of the sound”). Therefore, the user of the electric bed can always be prepared for the movement of the bottom for a certain time until the bottom starts to move.

  In the above-described embodiment, the operation unit 40 is a portable controller such as a hand switch. However, the operation unit 40 may be a stationary controller, or includes both a portable controller and a stationary controller. May be.

  Moreover, in the said embodiment, although the control part 46 with which the operation part 40 was equipped had the function as an independent controller, it is not limited to this form. The controller 46 may be a slave controller that operates under a master controller (for example, a control circuit included in the adjusting mechanism 30) placed outside the operation unit 40. For example, when the operation button 43 is pressed, the control unit 46 of the operation unit 40 notifies the identification information of the operation button 43 to an external master controller, and displays the display data given from the controller. It may be received and displayed on the display unit 41. That is, the control unit 46 may be a circuit having a simple function of performing input / output (information transfer) between the display unit 41, the operation panel 42, the audio output unit 45, and an external controller. Thereby, the movement of the electric bed 10 can be changed by changing the control function of the external controller.

DESCRIPTION OF SYMBOLS 10 Electric bed 20 Bottom 30 Adjustment mechanism 40 Operation part 42 Operation panel 43 Operation button 44 Setting button 45 Audio | voice output part

Claims (1)

An electric bed comprising a bottom for supporting a human body, an adjustment mechanism for adjusting the posture and height of the bottom, and an operation unit for giving an operation command to the adjustment mechanism,
The operation unit is
An operation panel including operation buttons;
An audio output unit for outputting audio;
In accordance with an operation on the operation panel, the audio output unit and the control unit that controls the adjustment mechanism,
The controller is
When the operation button is pressed and the pressing continues, the audio output unit starts outputting the sound corresponding to the pressed operation button, and then corresponds to the pressed operation button. By giving an operation command to the adjustment mechanism, the adjustment mechanism performs an operation corresponding to the operation button,
When the operation button is released during the output of the sound and the operation button is newly pressed for a predetermined time after the release, the operation button that was newly pressed is An electric bed that stops the sound output, whether it is the same or not, and causes the adjusting mechanism to perform an operation corresponding to the newly pressed operation button .

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