JP2000042112A - Relax device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To gently change frequency to surely relax the human body by gradually changing the frequency with fluctuation width within a specified value in gradually changing the frequency by an exciting means in the device including a support means for supporting the human body and an exciting means for oscillating the support means in the longitudinal direction. SOLUTION: The seat part 10 of a support means (chair) 1 is fixed to the lower ends of a pair of suspending rods 51, the upper ends of which are connected to a rotating shaft 50 journalled to a base 5, and the chair 1 is oscillated in the longitudinal direction by an exciting device 3. The exciting device 3 applies oscillation with a frequency of 1 Hz to the human body through the chair 1, the frequency is changed at every oscillation not to give a monotonous feeling to the human body, and the frequency is gradually changed within fluctuation width of 0.2 Hz in oscillation while the frequency is gradually changed. Thus, the frequency of oscillation is not changed largely, so that a user can be prevented from feeling uncomforable or feeling awakened due to concern about the change of frequency to more surely introduce the human body to the relax condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relaxation device for leading a relaxed state or a sleep state by swinging a human body.

[0002]

2. Description of the Related Art As is apparent from a cradle and a rocking chair, it has been known for a long time that a human body can be relaxed by causing the human body to swing slowly.
To this end, there has been proposed a relaxation device in which the above-mentioned swinging can be performed by a vibrating means, and a device in which the frequency of the swinging is changed by, for example, 1 / f fluctuation characteristics. .

[0003]

However, in the above, there is no mention of the frequency change width in the case where the frequency of oscillation is gradually changed, and when the 1 / f fluctuation is applied as it is, The difference between the frequency of one swing and the frequency of the next swing can be quite large. FIG. 8 shows an example in which the frequency is changed within the range of 0.2 Hz or more and 0.6 Hz or less,
A sudden change from a frequency of 0.6 Hz to a frequency of 0.2 Hz has occurred. In this case, the human body may not be able to relax due to the change in frequency.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to provide a relaxation device which has a gentle frequency change and can surely relax a human body.

[0005]

According to the present invention, there is provided a relaxation apparatus including a supporting means for supporting a human body, and a vibration means for causing the supporting means to perform a swinging operation in a front-rear direction. The above-mentioned vibrating means that makes the rocking of 1 Hz or less, when changing the frequency gradually, requires 0.2 Hz
It is characterized in that it is gradually changed in the following fluctuation range. This is to prevent the frequency of oscillation from suddenly largely changing.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described. The structure of the relaxation device may be any device provided with support means for supporting the human body and vibration means for causing the support means to perform a pitching operation in the front-rear direction. An example is shown in FIG. Rotary shaft 5 provided on base 5
The seat 10 of the supporting means (chair) 1 is fixed to the lower ends of a pair of hanging rods 51, 51 having their upper ends connected to 0, so that the chair 1 can freely rotate around the axis of the rotation shaft 50. Shall swing the chair 1 back and forth. In order to shake the chair 1 with a desired movement, the vibration device 3 here is provided with a braking means or capable of performing both operations of pushing and pulling the chair 1. In other words, the vibration device 3 referred to here does not only refer to a device that can apply a force to the support means and the human body, but also includes a device that suppresses the force and movement applied from the support means and the human body.

FIG. 7 shows another example, in which a link 5 having one end connected to shafts 53 provided at both front and rear ends of a base 5 is shown.
The other ends of the four members 54 and 54 are connected to shafts 55 at the front and rear ends of a supported part 56 provided on the chair 1 to form a four-bar linkage. If the chair 1 is moved back and forth by the vibration means (not shown in FIG. 3), the chair 1 performs a swinging motion.

Here, the vibration device 3 applies a swing of a frequency of 1 Hz or less to the human body via the chair 1 as a support means, and changes the frequency for each swing to provide a monotonous feeling. Is made not to be felt by the human body, but when this frequency is gradually changed and rocked, the frequency is gradually changed with a fluctuation width of 0.2 Hz or less.

More specifically, a case where the frequency is changed within the range of 0.2 Hz or more and 0.6 Hz or less will be described. As shown in FIG.
When changing to a frequency of Hz, for example, 0.4H
By interposing the fluctuation of the frequency of z, a frequency change having a width exceeding 0.2 Hz is prevented from occurring.

FIG. 2 shows a subjective evaluation (an analog scale of 0 to 100%) of the change width when the frequency is changed and the degree of concern about the frequency change. The results were as shown. The frequency band to be changed is 0.2 Hz to 0.6 H, which is considered to have a particularly high relaxing effect even in a frequency band of 1 Hz or less.
z range.

As is apparent from the figure, when the frequency is changed from 0.2 Hz to 0.6 Hz (variation width 0.4 Hz),
When changing from 0.3 Hz to 0.6 Hz (fluctuation range 0.3 Hz), the average value of the degree of concern is 50%
When the fluctuation range was 0.2 Hz or less, the average value of the degree of concern did not exceed 50%. Further, when the fluctuation width is 0.05 Hz, the average value of the degree of concern is about 5% or less.

As is apparent from these points, if the difference between the frequency of a certain oscillation and the frequency of the next oscillation exceeds 0.2 Hz, it is felt that the change is large. The above-mentioned problem can be avoided by suppressing the frequency to 0.2 Hz or less, and by setting the fluctuation width to about 0.05 Hz, the frequency fluctuation can be prevented. Most people are unaware and do not feel unnatural.

If the frequency fluctuation widths are equal, it is easier to feel uncomfortable when changing from a slow frequency to a fast frequency than when changing from a fast frequency to a slow frequency. For this reason, it is preferable to reduce the number of times the frequency is changed from the slow frequency to the fast frequency.
It is preferable to keep it to the extent.

The above description relates to the case where the frequency is automatically changed. However, when the frequency is changed by a manual operation, the change width is changed from one frequency to another frequency according to the manual operation. When the frequency is large, it is desirable to shift to another frequency once through the oscillation of the intermediate frequency. FIG.
The figure shows a case where an instruction to change to a swing to 3 Hz is input, and the vibration device 3 changes the swing frequency to 0.6 Hz as instructed.
In this case, instead of directly shifting from 0.3 Hz to 0.3 Hz, a swing of 0.3 Hz is made after a swing of 05 Hz and a swing of 0.4 Hz.

It is preferable that not only the frequency but also the acceleration be suppressed in a variation range so that the acceleration changes only in a stepwise manner. In particular, in the case of starting the swing operation, the swing is not suddenly caused by the acceleration of the set value as shown in FIG. 5, but the acceleration is gradually increased as shown in FIG.

Further, it is preferable that the limitation on the gradual change width of the frequency and the gradual change width of the acceleration is made to work even in a case where the current operation mode is shifted to another operation mode.

[0017]

As described above, in the present invention, 1 Hz
When the frequency is gradually changed at the following frequency and the rocking is performed, when the frequency is gradually changed, the frequency is set to 0.1.
Because the frequency is changed gradually with a fluctuation width of 2 Hz or less, the frequency of the oscillation does not suddenly change greatly. For this reason, the user feels discomfort or awakens while noticing the frequency change. Therefore, the human body can be more reliably led to a relaxed state.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an operation according to an example of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a subjective evaluation of the above.

FIG. 3 is an operation explanatory diagram of another example.

FIG. 4 is an operation explanatory view of still another example.

FIG. 5 is an operation explanatory diagram of a reference example.

FIG. 6 is a perspective view of an example.

FIG. 7 is a perspective view of another example.

FIG. 8 is an operation explanatory diagram of the reference example.

[Explanation of symbols]

 1 chair

Claims (1)

[Claims] 1. A relaxing device comprising: a supporting means for supporting a human body; and a vibrating means for causing the supporting means to perform a rocking operation in a front-rear direction. The relaxation device is characterized in that the vibration means gradually changes the frequency with a fluctuation range of 0.2 Hz or less when the frequency is gradually changed.